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RE Melbourne Company Inc; 1961-12-01;
NOTICE OF COMPLETION l'r.')., Notice is hereby given that the project known as Improvement District No.4 Squires Da::n for which Carlsbad Water District contracted with R.E.Melbourne Co.,Inc.has been completed in accordance with the plans and specifications and has been accepted by the Board of Directors of Carlsbad Water District on the 1st day of May,,19 63 In witness whereof this Notice of Completion has been executed under authority of a directive from the Board of Directors of said C_a_r_1_s_b_a_d_ Water District by the Acting Manager of said Carlsbad----------------------- Acting CARLSBAD MUNICIPAL WU[VBy \\\\~~;HfI'jJ(J ,'.<:.r~""'."''-\.-,~ql}iic:}<p'a,lWater District. ••.....'..(./.~'~.'""0'·'ri0....l '"/,)•••...-::..(~'(:{~~- :::.:..,,p'.•:if ~~"','.1:.."·~,··..(S~atJ:>~ 11111••,:'./~/•.l ~'tB-i,_"-__-----__---1----_"I ll'/S,t'at'e of California) )ss. County of San Diego) ______R_l_·c_h__a_r_d__R_.__C_o_e ,be ing first du1y sworn,depos esand says that he is Secretary of Carlsbad Municipal Water District and is familiar with the facts stated in the foregoing Notice of Completion executed for and on behalf of said agency,that he has read the foregoing Notice of Completion and knows the contents thereof and that the same are true. -:L~;{J,~ Richard R.Coe,Secretary j?~c"?75t:r ~/'t<'~,u To C~&fj!J~,/f..?u"u 1(..(p,lJ-<.-c.vA"7C;lf!./.-//J7 CARLSBAD MUNICIPAL WATER DISTRICT ..;./':~~\\~~~r~{~~:e~t.and sworn before me this ........\..:'.·~'t..¢Ala.¥'.of May 63 ~'F (::~.:/··'i.·.J(se~l~/ -l :••.':r~.:·'.J "':::.jli~£j(1ZY Public i 7and ~~/~;-':..:i'~~·:':';";..,....~•.••~ij¥f:QQtmtyand State~,~/,~.••'~:!#.tr.~\·· "I,.V 0 C0 .'V\:~.•'\t;~);K~<MY.COMM~5UOW U.P.RES JIM 2~1'61.'.lint:.~,\'," \ AY '3 t JS PH t 3 S RiES <t -f.h)Of{•.eS3 OFfr IAL RECOROS AA OiECaCOUNT"CALIF. A,•Sf<Y.'ECORO£R liO ~, --' i 1 .r 1 :1: ( ( .! i -' t '-- CARLSBAD MUNICIPAL WATER DISTRICT SAN DIEGO COUNTY CALIFORNIA CONTRACT DOCUMENTS & CONSTRUCTION SPECIFICATIONS FOR IMPROVEMENT DISTRICT NO. 4 SQUIRES DAM OCT 1961 BOYLE ENGINEERING SANTA ANA BAK ERSFIELD SAN DIEGO \ to^r- of the site «o? lib.* proposed work has UerTset* for" Tuesday, October 21!-, 1961. r Peet at the office of the District, 26^ State Street, Carlsbad, Califoroia. st 9 a.i CARLSBAD MUNICIPAL WATER DISTRICT San Diego County, California CONTRACT DOCUMENTS & CONSTRUCTION SPECIFICATIONS SQUIRES DAM FOR IMPROVEMENT DISTRICT NO. OCTOBER, 196l L. A. Clayton BOYLE ENGINEERING Santa Ana Bakersfield San Diego 1. 2. 5. 4. 6. 7-8. 9- 10. TABLE OP CONTENTS Notice to Contractors Inviting Sealed Proposals (Bids) Information for Bidders Form of Proposal or Bid Form Bid Bond Agreement Performance Bond Labor and Material Bond Special Provisions Standard Provisions Detail Specifications Section I Section II Section III Section IV Section V Section VI Section VII Section VIII Section IX Section X General Conditions Clearing and Grubbing Diversion and Care of Stream Flow During Construction Dam Construction Inlet-Outlet Pipe Gate Valves Butterfly Valves Plug Valves Miscellaneous- Structures Reservoir Access Road 11. Standard Specifications Concrete Cylinder Pipe Earthwork, Water System Gate Valves Painting Portland Cement Concrete Steel Pipe Water Main and Fittings Carlsbad MWD BEWO 5241D NOTICE INVITING SEALED PROPOSALS (BIDS) FOR THE CONSTRUCTION OP IMPROVEMENT DISTRICT NO. 4- SQUIRES DAM FOR THE CARLSBAD MUNICIPAL WATER DISTRICT San Diego County, California NOTICE IS HEREBY GIVEN that the Board of Directors of the Carlsbad Municipal Water District invites and will receive sealed proposals (bids) up to the hour of 2:00 p.m. on the yth day of November, 1961, for furnishing to said District of all transportation, materials, equipment, labor, services and supplies necessary to construct and complete for said District said Improve- ment District No. 4-, Squires Dam, at which time said proposals will be pub- licly opened and read aloud at the office of the District located at 2698 State Street, Carlsbad, California. Said bids shall conform to and be re- sponsive to the contract documents for said work as heretofore approved by said District and must be accompanied by the security referred to therein. The Board of Directors of said District reserves the right to reject any and all bids. Copies of the contract documents are on file and may be examined in the office of Boyle Engineering, 4525 Mission Gorge Place, San Diego 20, California. Copies may be obtained from said office of Boyle Engineering by deposit of Twenty-five Dollars ($25.00) per set, which deposit will be refunded if they are returned in good condition within fifteen (15) days after the opening of bids. Reference is hereby made to California Government Code, Sections 4-300 through 4-305 relating to preference of American-Made materials. All of said sections are hereby incorporated in this Notice and made a part hereof. The District Board, in awarding any contract hereunder will make the preference for American- Made materials and supplies, as contemplated in said Code sections. Price, fitness and quality being equal, preference will be given to supplies grown, manufactured or produced in California, and next preference will be given to supplies partially manufactured, grown or produced in California, all as provided in California Government Code Sections 4-330 through 4-36l, which sections are incorporated herein by this reference. Carlsbad MWD - Squires Dam BEWO 524-1-D Notice - 1 Under the provisions of the California Labor Code, the Board of Directors of said District has determined the prevailing rate of wages for the locality in which the work is to be performed to be as follows: Hourly Wage Rate $4.05 4.135 CARPENTERS Carpenter CEMENT MASONS Cement Masons IRON WORKERS Fence Erectors 4-.30 Reinforcing Iron Workers 4.25 LABORERS Cribber or Shorer 3.64 Laborer, General or Con- 3.28 struction Asphalt Raker, Ironer, Spreader 3.49 Guinea Chaser 3.36 Laying of all non-metallic pipe 3-59 including sewer pipe, drain pipe & underground tile Making & caulking of all non- 3.47 metallic pipe joints, tarman, mortarman and potman Watchman 3.08 Driller, core, diamond, wagon, etc. 3.33 OPERATING ENGINEERS Group 1 Air Compressor, Pump or Gene- 3.53 rator Operator, Engineer-Oiler and Signalman Group 2 Equipment Greaser 3.77 Truck Crane Oiler 3.77 Group 3 A-Frame or Winch Truck Operator 4.01 Hydra-Hammer or similar type 4.01 equipment Group 4 Roller Operator 4.12 Trenching Machine Operator (up 4.12 to 7 ft. Depth Capacity, Manu- facturer's rating) Group 5 Asphalt or concrete spreading, 4.31 mechanical tamping or finish- ing machine operator (all types and sizes) Rubber-tired, Heavy Duty, High- 4.31 Speed Equipment Operator with any type attachments Tractor Operator - Dragtype 4.31 Shovel, Bulldozer, Tamper, Scraper and Push Tractor H & W PHW Pension Vacation PHW lOjzf PHW I5|zf PHW 7.5* PHW PHW PHW PHW Notice - 2 Hourly Wage Rate OPERATING ENGINEERS (Cont'd) Group 6 Motor Patrol Operator $4.41 Tractor Loader Operator - 4.4l Crawler Type - all types and sizes Tractor Operator - with Boom 4.41 Attachments Trenching Machine Operator (over 4.4l 7 ft. Depth capacity, manufac- turer's rating) Universal Equipment Operator 4.4l (Shovel, Back Hoe, Dragline Clamshell, Grade-all, Crane, Derrick, Derrick Barge, Pile Driver and Mucking Machine) TRUCK DRIVERS Dump Truck Drivers Water Level: Less than 4 yards 3-575 4 yards but less than 8 yards 3.605 8 yards but less than 12 yards 3.655 12 yards but less than l6 yards 3.735 l6 yards or more 3-955 Legal Payload Capacity; Less than 6 tons3-575 6 tons to 10 tons 3-665 10 tons to 15 tons 3.655 15 tons to 20 tons 3-735 20 tons or more 3-955 Drivers of: A-Frame Trucks 4.135 Transit Mix Trucks: Under 3 yards 3.815 3 yards or more 3.955 Road Oil Spreader Trucks 3-755 Bootmen 3-755 Water Truck Drivers: Under 2500 gallons 3-635 2500 to 4000 gallons 3-755 4000 gallons and over 3.875 Truck Greaser & Tireman 3-905 BRICKLAYERS Brick, Block Layer or Stone Mason 4.50 Brick, Block and Stone Mason 3-56 Tender ELECTRICAL WORKERS Journeyman Technician 4.78 GLAZIERS Journeyman 3 - 90 PAINTERS Painters, Decorators & Building 3.87 Washers UTILITY PLUMBERS Journeyman 4.40 H & W PHW Pension Vacation PHW PHW 7.5jzf PHW (Industry Promotion-lOj^ PHW) PHW PHW PHW PHW 2 Weeks Annually li PHW 4# MG* 2.5* MG 7.5* MG (Trng. & Prom. 1% MG) *Monthly Gross Payroll Notice - 3 FOREMEN: All foremen not herein separately classified shall be paid not less than $2.00 per day more than the daily rate of the highest classification over which he has supervision. APPRENTICES may be employed in conformity with Sec- tion 1777.5 of the California Labor Code. WELDERS: Same wage scale as craft to which welding is incidental (except as otherwise separately classified.) OVERTIME AND HOLIDAY WORK: Not less than one and one-half (1-1/2) times the above prevailing rates of wages shall be paid for overtime work and for work on the following legal holidays: All Sundays, January 1, May 30, July ^, Labor Day, Thanksgiving Day, and December 25, with a modification as to the enumera- ted holidays set forth as provided in Section 6701 of the Government Code. It shall be mandatory on the Contractor to whom the contract is awarded and upon any sub-contractor under him to pay not less than the specified rate to all labor- ers, workmen, and mechanics employed by them in the performance of the contract. Notice - 3a Each bid or proposal shall be made out or submitted on a form to be obtained at the office of Boyle Engineering and must be accompanied by a cashier's check, a certified check or a bidder's bond in an amount not less than ten percent(10$) of the amount of the bid, made payable to the order of the or for the benefit of said District, as the case may be; and each bid or proposal shall be sealed and filed with the Secretary of the. District at or before the time in this Notice provided. The above- mentioned check or bond shall be given as a guarantee that the bidder will enter into a contract with the District if awarded the work, and will be declared forfeited if the successful bidder refuses to enter into said contract. The successful bidder will be required to furnish a labor and material bond in an amount equal to one hundred percent (100$) of the contract price, and a faithful performance bond in an amount equal to one hundred percent (100$) of the contract price, said bonds to be obtained from a surety company satisfactory to the District. All terms and conditions contained in the contract documents shall become a part of Contract. The Board of Directors of the Carlsbad Municipal Water District reserves the right to reject any and all bids, and to waive any and all irregularity in any bid. No bidders may withdraw his bid for a period of thirty (30) days after the time set for the opening thereof. BY ORDER OF THE BOARD OF DIRECTORS OF THE CARLSBAD MUNICIPAL WATER DISTRICT. Dated: /s/ Richard R. Coe Secretary CARLSBAD MUNICIPAL WATER DISTRICT San Diego County, California Carlsbad MWD BEWO 52m-d Notice - CARLSBAD MUNICIPAL WATER DISTRICT San Diego County, California SQUIRES DAM FOR IMPROVEMENT DISTRICT NO. M- INFORMATION FOR BIDDERS 1. AUTHORITY FOR THE WORK; The work must be done in strict conformity with Plans and Specifications adopted and approved by the Board of Directors of the District on 2. CONTRACT DOCUMENTS: The contract documents shall consist of the following: (a) Notice to Contractors Inviting Sealed Proposals (Bids) (b) This Information for Bidders (c) Form of Proposal or Bid Form (d) Bid Bond (e) Agreement (f) Performance Bond (g) Labor and Material Bond (h) Special Provisions (1) Standard Provisions (j) Plans and Detail Specifications 3. LICENSE; No bid will be accepted from a contractor who is not licensed in accord- ance with the law under the provisions of Division III, Chapter 9 of the Business and Professions Code of the State of California. Carlsbad MWD BEWO 52^1-d Information for Bidders - 1 PROPOSALS; Bids to receive consideration shall be made in accordance with the following instructions: (a) Bids shall be made upon the form of proposal furnished by the District and a part of the contract documents. All bids shall be properly executed and with all items filled in; numbers shall be stated both in writing and in figures; the signatures of all persons signing shall be in longhand. Erasures, interlineations or other cor- rections shall be authenticated by affixing in the margin immediately opposite the correction the initials of a person signing the bid. In case words and figures do not agree, the words shall govern and the figures shall be disregarded. If the unit price and the total amount named by a bidder for any item are not in agreement, the unit price alone shall be considered as representing the bidder's inten- tion, and the totals shall be corrected to conform thereto. (b) Bids shall not contain any recapitulation of the work to be done. Alternative proposals will not be considered, except as called for. No oral, telegraphic or telephonic proposals or modifications will be considered. (c) Bids shall be accompanied by a cashier's or a certified check, or bidder's bond, in an amount not less than ten percent (10$) of the bid, made payable to, or for the benefit of (as the case may be) the CARLSBAD MUNICIPAL WATER DISTRICT. Said check or bond shall be given as a guarantee that the bidder will enter into a contract if awarded the work, and in case of refusal or failure to enter into said Contract within seven (7) days after notice of award by the District in writing the check and the money represented by said check shall be forfeited to the District, or in the event that a bond is deposited said bond shall be deemed to be forfeited. (d) Before submitting a bid, bidders shall carefully examine the Plans, read the Specifications, read all other contract documents, shall visit the site of the work, shall fully inform themselves as to all the existing conditions and limitations; and shall include in the bid a sum to cover the cost of all items included in the contract. No allowance will be made because of lack of such examination or know- ledge. (e) Bids shall be sealed in an envelope and marked "Bid for Construction of SQUIRES DAM FOR IMPROVEMENT DISTRICT NO. U for the Carlsbad Municipal Water District" addressed to the Secretary of the District and be delivered thereto on or before the day and hour set for the opening of bids in the Notice Inviting Sealed Proposals, and shall bear the name of the bidder. It is the SOLE responsibility of the bidder to see that his bid is delivered and received in proper time. Any bid received after that scheduled closing time for receipt of bids, shall be returned to the bidder unopened. Carlsbad MWD BEWO 5211-D Information for Bidders - 2 (f) The District shall have a period of thirty (50) days after the opening of bids within which to accept or reject the bids. If no bid is accepted within said period, or if the successful bidder executes and delivers the necessary contract documents to the District, then the District will return all checks and bonds received by it within (10) days after the execution of said Contract or within ten (10) days after being requested to do so b.y the bidder if no bid is accepted within said period. 5. AGREEMENT AND BONDS: The form of contract which the successful bidder, as contractor, will be required to execute is included in the contract documents, and should be carefully examined by the bidder. The agreement, bonds, and other documents to be executed by the contractor shall be executed in original- triplicates stamped according to law, one of which original-triplicates shall be filed with the District, and the others with the Attorney and the Engineer for the District. The successful bidder, simultaneously with the execution of the Agreement, will be required to furnish a labor and material bond in an amount equal to one hundred percent (100$) of the contract price and a faithful per- formance bond in an amount equal to one hundred percent (100$) of the contract price; said bonds shall be secured from a surety company satis- factory to the District and whose name is on file with the County Clerk of San Diego County as an approved and financially sound surety company, authorized to transact business in this State. Said bonds shall meet all of the requirements and contain all of the con- ditions required by Sections 4200 and 4205, inclusive, of the Government Code of the State of California. 6. INTERPRETATION OF PLANS AND DOCUMENTS; If any person contemplating submitting a bid for the proposed contract, is in doubt as to the true meaning of any part of the Plans, Specifications, or other contract documents, or finds discrepancies in, or omissions from the Plans and Specifications or other contract documents, he may submit to the Engineer, who prepared said Plans and Specifications for the District, a written request for an interpretation or correction thereof. The person submitting the request will be responsible for its prompt delivery. An interpretation or correction of the proposed documents will be made only by Addendum duly issued by the Engineer, and a copy of such Addendum will be mailed or delivered to each person receiving a set of such documents. The District and the Engineer will not be responsible for any other explanation or interpretation of the proposed documents. Carlsbad MWD BE¥0 524l-d Information for Bidders - 3 ADDENDA OR BULLETINS; Any addenda or bulletins issued before the time in which to submit bids expires, or forming a part of the contract documents furnished to the bJdder for preparation of his bid, shall be covered in the bid, and shall be made a part of the Contract. 8. STATE LABOR AND MATERIAL REQUIREMENTS; Attention is called to the State Labor and Material Requirements, which form a part of the Contract and/or Specifications. WITHDRAWAL OF BID; Any bidder may withdraw his bid either personally or by a signed written request any time prior to the scheduled time for opening of the bids (but not after). 10. AWARD OR REJECTION OF BIDS; The Contract will be awarded to the lowest bidder complying with these instructions and with the Notice Inviting Sealed Proposals. The District, however, reserves the right to reject any and all bids or to waive any informality in bids received. If in the judgment of the District a bid is unbalanced, or If the bidder is not responsible, it shall be considered sufficient grounds for rejection of the entire bid. No bidder may withdraw his bid for a period of thirty (30) days after the time set for the opening of bids. The District will return all proposals and guarantees within ten (10) days after the execution of the Contract by the successful Bidder, or rejection of all bids, or upon receipt of a written request therefor received thirty (.30) days after said bids are opened, as the case may be, to the respective bidders whose proposals they accompany. 11. BIDDERS INTERESTED IN MORE THAN ONE BID: No person, firm or corporation shall be allowed to make or file, or be interested in more than one (1) bid for the same work, unless alter native bids are called for. A person, firm or corporation submitting a subproposal to a bidder, or who has quoted prices on material to a bidder, is not thereby disqualified from submitting a subproposal or quoting prices to other bidders. 12. ASSIGNMENT OF CONTRACT; No assignment by the Contractor of the Contract to be entered into hereunder or of any part thereof, or of funds to be received there- under by the Contractor will be recognized by the District unless such assignment has had the prior approval of the District, and the Surety has been given due notice of such assignment in writing and has con- sented thereto In writing. Attention is directed to "Subcontracting" of the Standard Provisions. Carlsbad MWD BEWO 524l-d Information for Bidders - 13. OTHER REQUIREMENTS; Before entering into a contract, the bidder to whom the Contract has been awarded shall furnish satisfactory evidence that he has secured for the period of the Contract full workmen's compensation insurance and public liability and property damage insurance, as specified in the Special Provisions from a responsible insurance company authorized to do business in California, and such insurance shall be maintained in full force and effect at his own expense during the life of the Contract. Before award of the Contract, any bidder upon request shall furnish a- recent statement of his financial condition and previous construction experience or such other evidence of his qualifications, as may be required by the Board of Directors of the District. lU. PERMITS AND LICENSES; The Contractor shall procure all permits and licenses except those listed below: REFER TO SPECIAL PROVISIONS 15. TIME FOR COMPLETION; Bidder's attention is called to the Special Provisions. 16.. ENGINEER'S ESTIMATE; The preliminary estimate of quantities of work to be done and materials to be furnished are approximately as shown in the contract documents, and are given as a basis for the comparison of bids; the District does not expressly or by implication agree that the actual amount of work will correspond therewith, but reserves the right to increase or decrease the quantity of any item or portion of the work or to omit portions of the work that may be deemed necessary or expedient by its Engineer or by the District. The Contractor is cautioned against unbalancing his bid by including more than the pro-rata share of his overhead and profit in any item in the schedule. Each bid item should be priced to carry its share of the cost, overhead and profit. 17. ALTERNATE EQUIPMENT AND MATERIALS; Attention is called to that portion of the Bid Form in which the major equipment and materials to be furnished and installed are tabulated. In order to be considered for use, alternate equipment and materials and the installed price must be listed in the spaces provided. Carlsbad MWD BEWO 524-1-d Information for Bidders - 5 BID FORM PROPOSAL TO CARLSBAD MUNICIPAL WATER DISTRICT San Diego County, California FOR THE CONSTRUCTION OF SQUIRES DAM IMPROVEMENT DISTRICT NO. .It- Name of Bidder; Business Address; ^Z? 0. J0o*' stf? _ Phone No y Place of Residence ; The site of the work to be constructed and referred to herein is in the County of San Diego, California. Said work is to be done in accordance with the Specifications and contract docu- ments of the Carlsbad Municipal Water District therefor, and as shown on Plans therefor entitled "Squires Dam, Improvement District- No. 4, for the Carlsbad Municipal Water District". TO THE BOARD OF DIRECTORS OF THE CARLSBAD MUNICIPAL WATER DISTRICT: Pursuant to and in compliance with your Notice Inviting Sealed Proposals (Bids) and the other documents relating thereto, the undersigned bidder, having fam- iliarized himself with the terms of the contract documents, local conditions affecting the performance of the Contract, and the cost of the work at the place where the work is to be done, hereby proposes and agrees to perform with- in the time stipulated in the Contract, including all of its component parts and everything required to be performed, and to provide and furnish any and all of the labor, material, tools, expendable equipment, and all utility and transportation services necessary to perform the Contract and complete in a workmanlike manner all of the work required in connection with the construction of the Squires Dam, Improvement District No. 4 for the Carlsbad Municipal Water District, all in strict conformity with the Plans and Specifications and other contract documents, including Addenda Nos. / , _ , _ , and _ , on file in the office of the Secretary of the District for the contract unit prices here- inafter set forth. The undersigned, as Bidder, declares that the only persons or parties inter- ested in this proposal as principals are those named herein; that this proposal is made without collusion with any person, firm or corporation; and he proposes and agrees, if this proposal is accepted, that he will execute a contract with the District substantially in the form of the contract set forth in the contract documents, that he will accept in full payment thereof the following unit prices, to wit: Carlsbad MWD BEWO 5241D Bid Form - 1 Item 1 2 3 * 5 6 Approx . Quantity 21 33,000 13,000 2,000 40 25 Item with Unit Price Written in Words Acres of Clearing and Grubbing, complete t%=> J?e>^«<» PER ACRE Cubic Yards of Stripping, complete at . , PER CUBIC YARD Cubic Yards of Cutoff Excavation (Common) PER CUBIC YARD Cubic Yards of Cutoff Excavation (Rock) complete, at. ^/^je^sf . s?-*"? PER CUBIC YARD Cubic Feet of Slush Grout, complete in place at. ,-J^f^y . s9<*4&, c0^ .•^P*-.*-'?**. PER CUBIC FOOT Cubic Feet of Concrete Packing, completej^C^p ^^ 0-V. -^?=. .^P-?-"-^'?'*.-' . . PER CUBIC FOOT Unit Price Zoo* 0* £>& 3Z> ^ ,000 Total 1/2*0 ^ «QO e>o /£? ^3G ~~~ 00 *~~ Carlsbad MWD BEWO Bid Form - 2 Item Approx, Quantity Item with Unit Price Written in Words Unit Price Total 40,000 Cubic Yards of Impervious Core Material (on site) complete in place, at .... .PER CUBIC YARD 8 51,000 Cubic Yards of Impervious Core Material (from reserve borrow area) complete in place at. ^5tJf7~f . &&u?'* PER CUBIC YARD 9 27,000 Cubic Yards of Sand Drain Material, com- plete in place at SfP. ^j*^ ..... ,PER CUBIC YARD 10 700 Cubic Yards of Gravel.Drain Material, complete in place at. ^^"f"^ . <*"^. . T^? . ^3*-4^VJ. PER CUBIC YARD 11 331,000 Cubic; Yards of Upstream and Downstream- Shell Material, complete in place at. . . "s ,PER CUBIC YARD 12 5,400 Cubic Yards of Riprap, complete in place PER CUBIC YARD Carlsbad MWD BEWO 5211D Bid Form - 3 Item Approx . Quantity Item with Unit Price Written in Words Unit Price Total 13 900 Linear Feet of Piezometer Trench Backfill complete, at. PER LINEAR FOOT 2,000 Linear Feet of Drill Grout Holes, complete at 15 20 Grout Connections, complete in place, at 16 4,000 Cubic Feet of Grout, complete in place at 17 1,500 Cubic Yards of Spillway Excavation, com- plete, at .^^f^f^^ . <^<f*{7~f> PER CUBIC YARD 18 705 Linear Feet of S-27"-5/l6" Pipe in place .-7— -2^ PER LINEAR FOOT NOT TO BE BID* NOT TO BE BID* NOT TO BE BID* *Price to be negotiated during construction, if required, as Extra Work per Section II, paragraph "A" of the Standard Provisions. Carlsbad MWD BEWO 5241D Bid Form - Item Approx. Quantity Item with Unit Price Written in Words Unit Price Total 19 700 Linear Feet of S-27"-3/l6" Pipe in place at .j£^4"<W PER LINEAR FOOT 1 18" Plug Valve, Class 150, in place at f .EACH 3 M-" Gate Valves, Class 150, in place at .EACH 1 20" Wafer-type Butterfly Valve, Class 125 in place at &*'.'*'. P'r*'?6?-?*"f!x. *?^r". . b^-f^./ . .EACH 1 20" Flow Meter in place at .77 ***~ .EACH Lump Miscellaneous Reservoir Structures, com- L.S Sum plete in place for the lump sum of. . . 20 21 22 23 Carlsbad MWD BEWO 5241D Bid Form - 5 Item Approx. Quantity Item with Unit Price Written in Words Unit Price Total Lump Sum Reservoir Access Road, complete in place for the lump sum of L.S. TOTAL AMOUNT OF BID Schedule A - (300-day Schedule) Schedule B Percentage to be added to total contract amount for 180-day completion schedule TOTAL AMOUNT OF BID Schedule A and B Carlsbad MWD BEWO Bid Form - 5a ALTERNATE EQUIPMENT AND MATERIALS It is understood that: (1) The unit and lump sum prices stated in the foregoing schedules include the furnishing and installation of equipment and materials of the manufacture listed as sub-items (a) in the following tabulation. (2) The District may select equipment and materials of any manufacture as listed in the following tabulation. The undersigned agrees to furnish and install such equipment and materials as selected for the unit or lump sum price stated in the foregoing schedules adjusted by the difference between the installed price listed under sub-items (a) and the installed price for the equipment and materials selected by the District. (3) The installed price stated in the following tabulation on all sub-items includes a complete operating installation, including the furnishing and in- stallation of any and all changes or additions in structures, piping, building, electrical work; accessories, controls, etc., necessary to accommodate the equipment and materials. (4) The installed price stated in the following tabulation on all sub-items includes the preparation and submission to the Engineer of all detailed drawings necessary to accommodate the installation of alternate equipment and materials listed. (5) In comparing bids in connection with the award of the contract, the District will consider savings in cost to the District which result from the selection of alternate equipment and materials. Item No.Description Manufacturer Installed Price 1-a 20" Butterfly Valve (a) Pratt $_ (b) $_ (c) $ 2-a 18" Plug Valve 3 -a 4" Gate Valves (a) Rockwell $ ^_ (b) $ (c) $ (a) Rensselaer$ * (b) $_ (c) $ ea. ea. ea. Carlsbad MWD BEWO 5241D Bid Form - 6 Item No. Description Manufacturer Installed Price ^-a 18" Flow Meter (a) B-I-F $_ (b) $. (c) . $ Carlsbad MWD BEWO 5241D Bid Form - 6a As required by the California State Law, the general contractor bidding will hereinafter state the subcontractor who will be the subcontractor on the job for each particular trade or subdivision of the work and will state the firm name and principal location of the mill, shop or office of each: DIVISION OP WORK LOCATION OP MILL, OR TRADE NAME OP FIRM OR CONTRACTOR SHOP OR OFFICE ACCOMPANYING THIS PROPOSAL IS (Insert the words "cash", "bidder's bond"7 or "certified check", as the case may be, in an amount equal to at least ten percent (10#) of the total of the bid, payable to the Carlsbad Municipal Water District.) The undersigned deposits the above-named security as a proposal guarantee and agrees that it shall be forfeited to the District as liquidated damages in case this proposal is accepted by the said District and the undersigned shall fail to contract as aforesaid, and to give the two (2) bonds in the form set forth in the contract documents of the said District, in the sums to be determined as aforesaid, with surety satisfactory to the District within seven (7) days (not including Sundays) after the Bidder has received notice from the District that the contract is ready for signature; otherwise said security shall be returned to the undersigned. The Bidder agrees that he will not withdraw his bid for a period of thirty (30) days after the time set for the opening thereof. Carlsbad MWD BEWO 5241D Bid Form - 7 the names of all persons Interested In the foregoing proposal as principals are as follows: (IMPORTANT NOTICE: If Bidder or other Interested person is a corporation, state legal name of corporation, also names of the president, secretary, treasurer and manager thereof; if a co-partnership, state true name of firm, also names of all individual co-partners composing firm; if Bidder or other interested person is an individual, state first and last names in full.) Licensed in accordance with an Act providing for the registration of contrac- tors, License No . Signature of Bidder (s): if? j£~. ^**fX.J&0ts*AM£' <? Dated: NOTE : If Bidder is a corporation, the legal name of the corporation shall be set forth above, together with the signature of the officer or officers authorized to sign contracts on behalf of the corporation; if Bidder is a co-partnership, the true name of the firm shall be set forth above, together with the signature of the partner or partners authorized to sign contracts in behalf of the co-partnership; and if the Bidder is an individual, his signature shall be placed above. Carlsbad MTO BEWO 52klD Bid Form - 8 BID BOND KNOW ALL MEN BY THESE PRESENTS, that we V^ X^ . WOcX JV5 0>V) GjfrOl£ C JD. C, vAy C^V\ft)l(L^JV\A Vfo*?VftV^Tl&h as Principal, and"" " fg{.iins ji\i/i. ;• • ~i< . i'.V.\i; » . "7 ;..r. ; "" t&^»»g under the kiws u£ tbu St.v.= ..i r . ,,. ;,. ,;„ . « nflfc-. TfMamJ ato«« B< fcuwmtjn tt LO« Aaifeki. in the State "of C»Moftij'. J S18 Surety, are held and firmly bound unto the CARLSBAD MUNICIPAL WATER DISTRICT hereinafter called the District in the penal sum ofTfeV) P^^C^oT, Dollars ($4/'/09J' & ), lawful money of the United States, for the ^payment of which sum well and truly to be made, we bind ourselves, our heirs, executors, administrators, and successors, jointly and severally, firmly by these presents. The condition of this obligation is such that whereas the Principal has sub- mitted the accompanying bid dated K.^OWg^VlHS/5*^ 1 , 19^1, for SQUIRES DAM FOR IMPROVEMENT DISTRICT NO. 4 for the CARLSBAD 'MUNICIPAL- WATER DISTRICT, San Diego County, California. NOW THEREFORE, if the Principal shall not withdraw said bid within thirty (30) days after the opening of the same, and shall within seven (j) days after the prescribed forms are presented to him for signature enter into a written contract with the District in accordance with the bid as accepted, and if the Principal shall give the required bonds with good' and sufficient sureties, or sureties for the faithful performance and proper fulfillment of such Contract and for the protection of laborers and materialrnen, or in the event of the withdrawal of said bid within the periods specified, or the failure to enter into said Contract, and give such bonds within the time specified, if the Principal shall within sixty (60) days after request by the District pay the District the difference between the amount specified in said bid and the amount for which the District may procure the required work and/or supplies, if the latter amount be in excess of the former, then the above obligation shall be void and of no effect, otherwise to remain in full force and virtue. IN WITNESS WHEREOF the above-bounjien parties have executed this instrument under their several seals this j'ji- day ofr\&\)&,&\&&L* 196l> name and corporate seal of each corporate party being hereto affixed and these presents duly signed by its undersigned representative pursuant to authority of its governing body.' • Carlsbad MWD BEWO 52^1-d __ — Bid Bond - COPY Two Witnesses (if individual) Principal Title ATTEST: (if corporation) Title Corporate Seal Title INDEMNITYrfOMPANT STATE OF CALIFORNIA, SAN-DIEGO On this before me, duly commis|i County of -^»,,,....._...__.v_. r""^ day of.lsi.\^.vLkklka.tl£,—in the year one thousand nine hundred i y.RE.T.HjA...P.QPE! a Notary Public in and for said County and State, residing therein id sworn, personally appeared YY.ALL1AM...E,. ..SPICEJB. known to me to be the duly authorized Attorney-in-Fact of PACIFIC INDEMNITY COMPANY, and the same person whose name is subscribed to the within instrument as the Attorney-in-Fact of said Company, and the said WILLIAM F ^PTfFP- -t....irf.'....iMJ..£A~iJliSj. .acknowledged to me that he subscribed the name of PACIFIC INDEMNITY COMPANY, thereto as surety and his own name Attorney-in-Fact. IN WITNESS WHEREOF, I have hereunto set my hand and affixed my official seal the day and year in this Certificate first above written. Notary Public in an. FORM GIOOO REV. C IBM 889 '' M* °r ' *•"•' '"***! ""^ "'" °leg° C°'*l»- Commnwon E»p»r«« Jbn* IS, T96S ..., State of California Carlsbad MWD BiiWO Bid Bond - 2 Two Witnesses (if individual)\AAA jfifftMv** CJD Principal Title ATTEST: (if corporation) Title Corporate Seal Carlsbad MWD BEWO 52Ul-d A FIC INDEMNITYrCOMPANT By Title ATTEST: Title Corporate Seal Bid Bond - 2 AGREEMENT THIS AGREEMENT, made and entered into by and between the CARLSBAD MUNICIPAL WATER DISTRICT, a municipal water district, organized and existing under the Municipal Water District Act of 1911, as amended, San Diego County, State of California, hereinafter referred to as the "District", and a corporation organized and existing under the laws of the State of , a partnership consisting of , or an individual trading as , of the City of , County of , State of £#+ s*- &e*>ss9 _ , hereinafter referred to as the "Contractor". WITNESSETH: That the District and the Contractor, for the consideration here- inafter named, agree as follows: (1) SCOPE OF WORK; The Contractor will furnish all materials and will perform all of the work for the following: Construction and completion of IMPROVEMENT DISTRICT NO. 1, SQUIRES DAM for the CARLSBAD MUNICIPAL WATER DISTRICT in accordance with the Plans and Specifications and other contract documents therefor, complete with the following equipment and/or materials: (2) TIME FOR COMPLETION; The work shall be commenced and completed within the times set forth in the Special Provisions. Carlsbad MWDBEWO 52m-d Agreement - 1 (3) THE CONTRACT SUM: The District will pay the Contractor in current funds for the quantities actually constructed and/or installed in accordance with the prices shown in the Bid Form. (4) PROGRESS PAYMENTS; Monthly progress payments will be made in accordance with Section VII of the Standard Provisions. The final payment of ten percent (10$) for value of the work done under this contract, if unencumbered, shall be made thirty (30) days after the acceptance of the completed contract by the District. The acceptance will be made only by an action of the Board of Directors of the District in session. The acceptance by the Contractor of said final payment shall constitute a waiver of all claims against the District arising under this contract. (5) CONTRACT DOCUMENTS; The complete Contract includes all of the Contract Documents set forth herein, to wit: The Notice Inviting Sealed Proposals (Bids), Information for Bidders, Bid Form, Bid Bond, this Agreement, Performance Bond, Labor and Material Bond, Special Provisions, Standard Provisions, and Plans and Detail Specifications and Addenda Thereto. Carlsbad MWD BEWO 524l-d Agreement - 2 IN WITNESS WHEREOF, this Agreement is executed by the President and the Secretary of said District, pursuant to Resolution No./-£j of its Board of Directors authorizing the same, and the Contractor has caused this Agreement to be executed. Dated:* 1961 ^? (Contractor (Official Title) (SEAL) Dated:/ , 196! ATTEST: (SEAL) (Secretary) Carlsbad MWD BEWO Agreement - 3 CORPORATE CERTIFICATE , certify that I am the Secretary of the corporation named as Contractor in the foregoing contract; that J& 4?\ Js**ZfZ.&&<s*a~s*ts~ i who signed said contract on behalf of the Contractor was then /^Zf^^stf^/T- of said corporation; and that said contract was duly signed for and in behalf of said corporation by authority of its governing body and is within the scope of its corporate powers. (Corporate Seal) APPROVED AS TO FORM: (Attorney for the District) Carlsbad MWD BEWO 52Ul-d Agreement - k PERFORMANCE BOND KNOW ALL MEN BY THESE PRESENTS: That WHEREAS, the Board of Directors of the CARLSBAD MUNICIPAL WATER DISTRICT by Resolution duly and regularly passed on the <£/sr day of //ttretiocf. 1961, has awarded to /f7. /". /^g I fee *#.&£„ (2-c.. 2' *J' c • hereinafter desig- T. t. 'l&tX /d"7, S0n /^/5 %>*/, t^a* ///<?/- 7» t'o> nated as the "Principal", a contract for the construction of SQUIRES DAM, IMPROVEMiiNT DISTRICT NO. 1+ for the CARLSBAD MUNICIPAL WATER DISTRICT, San Diego County, California, and WHEREAS, said Principal is required under the terms of said Contract to furnish a bond for the faithful performance of said Contract, PACFFIC INDEMNITY COMr.WY. a corporation duly organized and NOW, THEREFORE, We, the Principal and exbi;:•= v--Jr'f '•:"= la»= uf &e Sta:c of California, having its offices aad principal place of biiiiausi at Los Anijeles, in the State of CaliforuU. , as Surety, are held firmly bound unto the CARLSBAD MUNICIPAL WATER DISTRICT, hereinafter called the "Obligee", in the penal sum of fouf^fuyicl^ec/ ^ "? ^T _ Dollars ^ u s a ?i <S -7~wa //H.-M<Jf f a/ A/s^eT /=> ^ <? v- lawful money of the United States of America, for the payment of which sum well and truly to be made, we bind ourselves, our heirs, executors, adminis- trators and successors, jointly and severally and firmly by these presents, THE CONDITION OF THIS OBLIGATION IS SUCH that if the above-bounden Principal, his or its heirs, executors, administrators, successors or assigns shall in all things stand to and abide by, and well and truly keep and perform the covenants, conditions, and agreements in the said Contract, and any alteration thereof made as therein provided, on his or their part to be kept and performed at the time and in the manner therein specified, and in all respects according to their true intent and meaning, and shall indemnify and save harmless the Obligee, its officers and agents, as therein stipulated, this obligation shall become null and void; otherwise, it shall be and remain in full force and virtue. And the said surety, for value received, hereby Carlsbad MWD BEWO 52^1-d Performance Bond 1 stipulates and agrees that no change, extension of time, alteration, or addition to the terms of the Contract, or to the work to be performed there- under, or the specifications accompanying the same, shall in any wise affect its obligation on this bond, and it does thereby waive notice of any such change, extension of time, alteration or addition to the terms of the Contract, or to the work or to the specifications, and said Surety agrees that in case suit is brought on this bond, Surety will pay District's reasonable Attorney's fees to be fixed by the Court. IN WITNESS WHEREOF, four (k) identical counterparts of this instru- ment, each of which shall for all purposes be deemed an original hereof, have been duly executed by the Principal and Surety above named, on the /* 7~~ day of J)6d£^iJ>Er , 196l. By ^ (Principal) <x? -^" ^>f ,^r^.^t*^£^ ' '.*', STATE OF CALIFORNIA, SAN DIEGO ss-County of On this /.$./.. day of....-*^^.<?.^??..'^?/!?. in the year one thousand nine hundred and< before me, />t^.'\..y.'...*^.)£. a Notary Public in and for said County and State, residing therein sworn, personally appeared •^.:..~~.:...^. known to me to be the duly authorized Attorney-in-Fact of PACIFIC INDEMNITY COMPANY, and the same person whose name is subscribed to the within instrument as the Attorney-in-Fact of said Company, and the said R. D. SPICER- .acknowledged to me that he subscribed the name of PACIFIC INDEMNITY COMPANY, thereto as surety and his own name as Attorney-in-Fact. IN WITNESS WHEREOF, I have hereunto set my hand and affixed my official seal the day and yearhis CeEtificate-first-aKrtv^ -u™-i»*o« FORM GIOOO REV. C IBM 8B9 St»t« of California - Principal Cffic , 'an O.ego oun;y S*^2 s My Commission Expires Mar. 19, 1965 /\ ^--^^y^-*"^-••-•w«jv-*y* — -..-••- — .,.....-.,,.. --------- y{ ..., .... .......... - ..... . ..... ------ . ----- *»«-,. .......... -------- . — ........... ,,,y530 Broadway, ian Diego, Calif. SAN Notary Public in and for ...................................... County of State of California. -V;. stipulates and agrees that no change, extension of time, alteration, or addition to the terms of the Contract, or to the work to be performed there- tinder, or the specifications accompanying the same, shall in any wise affect its obligation on this bond, and it does thereby waive notice of any such change, extension of time, alteration or addition to the terms of the Contract, or to the work or to the specifications, and said Surety agrees that in case suit is brought on this bond, Surety will pay District's reasonable Attorney's fees to be fixed by the Court. IN WITNESS WHEREOF, four (k) identical counterparts of this instru- ment, each of which shall for all purposes be deemed an original hereof, have been duly executed by the Principal and Surety above named, on the /* 7~ day of £>£(>£MJ>£r , 1961. (Attach Acknowledgment) PACIFIC INDEMNITY COMPANY (Attorney-in-fact) 'ft APPROVED AS TO FORM: (Attorney for the District) Carlsbad MWD BEWO Performance Bond - 2. LABOR AMD MATERIAL BOND KNOW ALL MEN BY THESE PRESENTS: That WHEREAS, the Board of Directors of the CARLSBAD MUNICIPAL WATER DISTRICT by Resolution passed on the J?/a7~ day of /^^ ^/??/^ >•- , 19°"l, has awarded to ^c . £'• /??•€ /X^ ^ t~ ft e U^v . /- siS G . hereinafter />. J. &** /£"?, <5e?"7? xl^/J 'X'c?, l&a/,'/*/*>?/'<? designated as the "Principal", a contract for the construction oT SQUIRES DAM, IMPROVEMENT DISTRICT NO. k for the CARLSBAD MUNICIPAL WATER DISTRICT, San Diego County, California; and WHEREAS, said Principal is required to furnish a bond in connection with said Contract providing that if said Principal or any of his subcon- tractors shall fail to pay for any materials, provisions, provender, or other supplies, or teams used in, upon, for, or about the performance of the work contracted to be done, or for any work or labor done thereon of any kind, or for amounts due under the Unemployment Insurance Act, the Surety on this bond will pay the same to the extent hereinafter set forth: NOW, THEREFORE, we, the Principal, and PACIFIC INDEMNITY COMPANY, a corporation duly organized and " exi^;.:r~ ;:;;:!er the laws of the State of California, having its offices and as Surety, are held and firmly bound unto the CARLSBAD MUNICIPAL WATER DISTRICT 7*9^ A &*-*)*>/re<?' &/<?/>7- /rfsx. S<*»*S 7~t<Jj /S*<. in the penal sum of /y//y?fi, f/t^e y/!^ollars ($ 4/Jj?. ^9S',<S^» lawful /" S/6-8 money of the United States of America, for the payment of which sum well and truly to be made, we bind ourselves, our heirs, executors, adminis- trators, and successors, jointly and severally, firmly by these presents. THE CONDITION OF THIS OBLIGATION IS SUCH that if said Principal, his or its subcontractors, heirs, executors, administrators, successors, or assigns, shall fail to pay for any materials, provisions, provender or other supplies or teams used in, upon, for or about the performance of the work contracted to be done, or for any work or labor thereon of any kind, Carlsbad MWD BEWO 52Ul-d Labor and Material Bond - 1 or for amounts due under the Unemployment Insurance Act as required by the provisions of Section kZQQ-kzoQ, inclusive, of the Government Code, then said Surety will pay the same in or to an amount not exceeding the amount hereinabove set forth, and also will pay, in case suit is brought upon this bond, such reasonable attorney's fees as shall be fixed by the court, awarded and taxed as in the above mentioned statute provided. This bond shall inure to the benefit of any and all persons, com- panies, and corporations entitled to file claims under Section 1192.1 of the California Code of Civil Procedure, so as to give a right of action to them or their assigns in any suit brought upon this bond, and the said Surety, for value received, hereby stipulates and agrees that no change, extension of time, alteration, or addition to the terms of the contract, or the work to be performed thereunder, or the specifications accompanying the same, shall in any wise affect its obligation on this bond, and it does hereby waive notice of any such change, extension of time, alteration, or addition to the terms of the Contract, or to the work or to the specifications. IN WITNESS WHEREOF four (k) identical counterparts of this instru- ment, each of which shall for all purposes be deemed an original thereof, have been duly executed by the Principal and Surety above named on the STATE OF CALIFORNIA, r . SAN DIEGO ss-.................................... County of .......................................................___ d^-y.^x^.^^^..-'--^-^!^-.^--On this .jfa.7^... day fA...i^t:.lf..^..f..^2.^.?..^'. in the year one thousand nine hundred before me ALMA. J, LAW a Notary Public in and for said County and State, residing therein R. D. SPICERduly comn^is^i^gi^nd sworn, personally appeared known to me to be the duly authorized Attorney-in-Fact of PACIFIC INDEMNITY COMPANY, and the same person whose name is subscribed to the within instrument as the Attorney-in-Fact of said Company, and the said JR.,..D.....S.PI.C.ER .acknowledged to me that he subscribed the name of PACIFIC INDEMNITY COMPANY, thereto as surety and his own name as Attorney-in-Fact. IN WITNESS WHEREOF, I have hereunto set my hand and affixed my official seal the day and year in this Certificate first above written.ALMA J. LAWV Notary Pubt c, State of California - Principal Of!ic , an 0 sgo oxniy MaJsgraSH^ff-.^P-ffSJ^H.'..^'.™?^ - CdL..&--A-«-f—•530 Broadway, San Diego, Calif. SAN Notary Public in and for County of ~ , State of California. FORM GIOOO REV. C IBM 859 or for amounts due under the Unemployment Insurance Act as required by the provisions of Section 4200-4208, inclusive, of the Government Code, then said Surety will pay the same in or to an amount not exceeding the amount hereinabove set forth, and also will pay, in case suit is brought upon this bond, such reasonable attorney's fees as shall be fixed by the court, awarded and taxed as in the above mentioned statute provided. This bond shall inure to the benefit of any and all persons, com- panies, and corporations entitled to file claims under Section 1192.1 of the California Code of Civil Procedure, so as to give a right of action to them or their assigns in any suit brought upon this bond, and the said Surety, for value received, hereby stipulates and agrees that no change, extension of time, alteration, or addition to the terms of the contract, or the work to be performed thereunder, or the specifications accompanying the same, shall in any wise affect its obligation on this bond, and it does hereby waive notice of any such change, extension of time, alteration, or addition to the terms of the Contract, or to the work or to the specifications. IN WITNESS WHEREOF four (4) identical counterparts of this instru- ment, each of which shall for all purposes be deemed an original thereof, have been duly executed by the Principal and Surety above named on the day of £)ecesn-6*> r- , 1961. (Principal) By (Attach Acknowledgment) APPROVED AS TO FORM: By_ PACIFIC INDEMNITY" -OMF'-y 3450 Wilshire, Los Angeles 5, &a!..;^ni By. (Attorney for the District) Carlsbad MWD BEWO 52U1-CL R. D\SPjeER, Attorney-ln-^!*<fbvJ V ( Attorney- in- fact) Labor and Material Bond - 2 CARLSBAD MUNICIPAL WATER DISTRICT San Diego Countyf California SQUIRES DAM FOR IMPROVEMENT DISTRICT NO. k SPECIAL PROVISIONS SECTION I - DEFINITIONS AND TERMS Whenever the following terms, or pronouns used in their stead, occur in the contract documents, the intent and meaning shall be interpreted as follows: (a) District - The Carlsbad Municipal Water District, 2698 State Street, Carlsbad, California. (b) Engineer - Boyle Engineering, 1+525 Mission Gorge Place, San Diego 20, California. (c) Distr ic t ' s Representative - The person or engineering firm appointed by the board of Directors of the District to supervise the project and represent the District. Contract - The regular agreement executed between the District and the Contractor, covering the performance of the work and the furnishing of labor and materials in the construction of the work. (e) Contractor - The person, firm, or corporation entering into contract with the District for the performance of the work required by the Contract, and the legal representative of said party, or the agent appointed to act for said party in the performance of the work. (f ) Subc ontrac tor - The person, firm, or corporation supplying labor, or labor and materials at the site of the work as a part of the Contractor's obligation under the Contract. (g) Bidder - Any individual, firm, or corporation submitting a proposal for the work contemplated, acting directly or through a duly authorized representative . (h) Accepted Bid - The Bid or Proposal accepted by the Board of Directors of the District. (i) Plans - The official plans, profiles, typical cross-sections, working drawings, detail drawings and supplemental drawings, or exact repro- ductions thereof, approved by the Engineer, which show the locations, character, dimensions, and details of the work to be done. (j) Specifications - The directions, provisions and requirements per- taining to the method and manner of performing the work, and to Carlsbad MWD BEWO 52^1-d Special Provisions - 1 the qualities aria quantities ca materials to oe furnished unuer the Contract. (k) Project, The Work - The entire public improvement proposed, by the District to oe constructed, in whole or in port pursuant to the Contract. (l) .Surety - Any person, firm or corporation that executes as surety tne Contractor's performance bond, the Contractor's labor and material bond or the Contractor's bid. bonu. (m) Laboratory - The laboratory designated by the District's Represen- tative ana/or District to test materials and work involved, in the Contract. (n) Whenever in the specifications or upon the plans, the words "directed.", "required", "permitted", "ordered", "designated", "prescribed", or words of like import are used, it shall be understood that the directions, requirements, permission, order, designation, or prescrip- tion of the District's Representative is intended and similarly the words "approved", "acceptable", "satisfactory", or words of like import, shall mean approvea by, or acceptable to, or satisfactory to the District's Representative, unless otherwise expressly stated. SECTION 11 - TIME TOR COMPLETION - Jfli'i'hMolOH OF TIME The work shall be commenced within seventeen (17) consecutive calendar days from and alter the date of award of the Contract by the District and it shall be completed within SCHEDULE A - THREE HUNDRED (300) CONSECUTIVE CALENDAR DAYS SCHEDULE B - ONE HUNDRED EIGHTY (l80) CONSECUTIVE CALENDAR DAYS from and after said date of award. If the work is not completed in accoraance with the foregoing, it is mutually agreed that the District will suffer damage, and it being mutually agreed that it is impractical and infeasible to determine the amount of actual damage, it is agreed that the Contractor shall pay- to the District, as fixed and liquidated damages and not as a penalty, the sum of Two Hunored Dollars ($200.00) for each and every calendar day of delay; and the Contractor and his Surety shall be liable for the amount thereof, provided that the Contractor shall not be charged liquidated damages because of any delays in the completion of the work due to unforseeable causes beyond the control and wituout the fault of negli- gence of the Contractor (including but not restricted to acts of God, or of the public enemy acts of the Government, acts of the District, or acts of another Contractor in the performance of a contract with the District, fires, flcoas, epidemics, quarantine restrictions, strikes, freight embargoes, and unusually severe weather, or delays of subcon- tractors due to such causes). Carlsbau ]>WD BiMJ }2Ul-d Special Provisions - 2 The Contractor shall within ten (10) days from the beginning of any such delay (unless the District shall grant a further period of time prior to the date of final settlement of the Contract) notify the District in writing of the cause of delay, whereupon the District shall ascertain the facts and extent of the delay and extend the time for completing the work in its judgment the findings of fact justify such an extension, and its findings of fact thereon shall be final and conclusive on the parties hereto. SECTION III - CONTRACT SECURITY Contractor shall furnish a surety bond in an amount of one hundred percent (lOO^o) of the contract price, as security for the faithful performance of this Contract, and shall furnish a separate bond in an amount at least equal to one hundred percent (lOOc/o) of the contract price as security for the payment of all persons performing labor and furnishing materials, in connection with the Contract. The aforesaid bond or bonds shall be in form satisfactory to the District. SECTION IV - CONTRACTOR'S INSURANCE The Contractor shall not commence work under this Contract until he has obtained all insurance required under this paragraph, and such insurance has been approved by the District, nor shall the Contractor allow any subcontractor to commence work on his subcontract until all similar insur- ance required of the subcontractor has been obtained and approved. (a) Workmen's Compensation Insurance - The Contractor shall take out and maintain during the life of this Contract workmen's compensation insurance for all of his employees engaged on or at the site of the project, and in case any of his work is sublet, the Contractor shall require the sub- contractor similarly to provide workmen's compensation insurance for all the latter's employees, unless such employees are covered by the protection afforded by the workmen's compensation insurance carried by the Contractor. In case any class of employees engaged in hazardous work under this Con- tract, on or at the site of the project, is not protected under the Work- men's Compensation Statute, and in case any other class of employees is not protected under the Workmen's Compensation Statute for any other reason, the Contractor shall provide and shall cause each subcontractor to provide adequate insurance coverage as shall be satisfactory to the District for the protection of such employees not otherwise protected. (b) Public Liability and Property Damage Insurance - The Contractor shall take out and maintain during the life of this Contract such public liability and property damage insurance as shall protect him and the District from all claims for personal injury, including accidental death, as well as from all claims for property damage arising from operations under this Contract. The amounts of such insurance shall be as hereinafter set forth. Carlsbad MWD BEWO 52^1-d Special Provisions - 3 The Contractor shall require the subcontractors, if any, to take out and maintain similar public liability and property damage insurance. The amounts of such insurance shall be as hereinafter set forth. In case any of the work under this Contract is to be performed on or at the site of the project by a subcontractor, the Contractor shall also take out and maintain such Contractor's contingent or protective insurance as will protect him and the District from damage claims arising from the operations of any subcontractor. The amounts of such insurance shall be as herein- after set forth. If any subcontractor shall subcontract any portion of his subcontract, the Contractor shall require him to take out and maintain such contingent or protective insurance as will protect such subcontractor from damage claims arising from operations of the second subcontractor. Such contingent or protective insurance shall be in the same amount as the primary subcontractor's public liability and property damage insurance. As provided above, the Contractor shall take out and maintain public liability insurance for injuries, including accidental death to any one person, in an amount not less than One Hundred Thousand Dollars ($100,000.00), and subject to the sane limit for each person; on account of any one accident in an amount not less than Three Hundred Thousand Dollars ($300,000.00); and pro- perty damage insurance in an amount not less than Fifty Thousand Dollars ($50,000.00); Contractor's contingent or protective insurance for public liability and property damage in amounts not less than the respective amounts as noted above. As provided above, the Contractor shall require all subcon- tractors whether primary or secondary, if any, to-take out and maintain public liability and property damage insurance in amounts hereinbefore set forth for the Contractor. (c) Insurance Covering Special Hazards - The following special hazards shall be covered by rider or riders to the above mentioned public liability insurance or protective damage insurance policy or policies or by special policies of insurance in amounts as follows: automotive and truck, where operated, in amounts as above; material hoists, where used, in amounts as above, (d) Proof of Carriage of Insurance and Notice Cancellation - The Contractor shall furnish the District satisfactory proof of full compliance with all of the insurance requirements herein prior to execution of the Con- tract. The Contractor shall also furnish the District a certificate from the carrier that said policies shall not be cancelled without ten (10) days advance notice in writing to the District. SECTION V - PjflMITS AND LICMSKS The Contractor shall procure all permits and licenses except those listed below: NO INCEPTIONS The Contractor shall give all notices necessary and incidental to the due and lawful prosecution of the work and shall comply duly with the terms and condi- tions of all permits. Carlsbad MtvD BtiwO 52^1-d Special Provisions - k The Contractor shall pay all charges and fees in connection with all permits and licenses except those required by the permits issued by the following: NO EXCEPTIONS SECTION VI - EXTRA, ADDITIONAL OR OMITTED WORK; In addition to the provisions of Section II, paragraph (b) of the Standard Provisions, the District's Representative may authorize extra work for single contract change orders not exceeding $500.00 up to an aggregate sum of $5,000.00 for the total Contract. Carlsbad MWD BEWO 52^1-d Special Provisions - 5 CARLSBAD MUNICIPAL WATER DISTRICT San Diego County, California IMPROVEMENT DISTRICT NO. 4- SQUIRES DAM STANDARD PROVISIONS SECTION I - AWARD AND EXECUTION OF CONTRACT (a) Award of Contract or Rejection of Bids; The award of the Contract, if it is awarded, will be to the lowest bidder complying with the instructions contained in the contract documents. The District, however, reserves the right to reject any and all bids or to waive any informality in bids received. If in the judgment of the District, a bid is unbalanced, or if the bidder is not responsible, it shall be considered sufficient grounds for rejection of the entire bid. The award, if made, will be made within thirty (30) days after the opening of the proposals and no bidder may withdraw his bid for a period of thirty (30) days after the time set for the opening of bids. The District will re- turn all proposals and guarantees within ten (10) days after the execution of the Contract by the successful bidder, or rejection of all bids, or upon receipt of a written request therefor received thirty (30) days after said bids are opened, as the case may be, to the respective bidders whose proposals they accompany. (b) Contract Bonds: The successful bidder, simultaneously with the execution of the agreement, will be required to furnish a labor and material bond in an amount equal to one hundred percent (100#) of the contract price and a faith- ful performance bond in an amount equal to one hundred percent (100$) of the contract price; said bonds shall be secured from a surety company satisfactory to the District and whose name is on file with the County Clerk of San Diego County as an -approved and financially sound surety company, authorized to transact business in this State. Said bonds .shall meet all of the requirements and contain all of the conditions required by Section 4-200 and 4-205, inclusive, of the Government Code of the State of California. (c) Insurance Requirements: The successful bidder shall furnish the District satisfactory proof of full compliance with all of the insurance requirements prior to execution of the Contract. (d) Execution of Contract; The Contract shall be signed by the successful bidder and returned to the District, together with the contract bonds and pro'of of Insurance coverage, within seven (7) days, not including Sundays, after the bidder has received notice from the District that the Contract is ready for signature. The agreement, bonds, and other documents to be exe- cuted by the Contractor shall be executed in original-triplicates stamped according to law, one of which original-triplicates shall be filed with the Secretary of the District, and the others with the Attorney and the Engineer for the District. Carlsbad MWD BEWO 524-1D Standard Provisions - 1 (e) Failure to Execute Contract: Failure to execute the contract and file acceptable bonds and proof of insurance coverage as provided herein within the time set forth in Article (d) above shall be just cause for the annul- ment of the award and the forfeiture of the proposal guaranty. SECTION II - SCOPE OF WORK (a) Work to be Done: The work to be done consists of furnishing all labor, materials, methods or processes, implements, tools, and machinery which are required for or appurtenant to, the construction and completion of the entire project designated in the Contract, and to leave the grounds in a neat con- dition. (b) Extra, Additional or Omitted Work: The District upon proper action by its Board of Directors may require changes in, additions to or deductions from the work to be performed or to the materials to be furnished pursuant to the provisions of the agreement or any other contract document. Adjustment, if any, in the amounts to be paid to the Contractor, by reason of any such change, addition or deduction, shall be determined by one or more of the following meth- ods : By an acceptable lump sum proposal from the Contractor. By unit prices contained in the Contractor's original bid and in- corporated in the contract documents affixed by.subsequent agree- ment between the District and the Contractor. By ordering the Contractor to proceed with the work and to keep and present in such form as the District may direct, a correct amount of the cost of the change, together with all vouchers therefor. The cost may include allowance for overhead and profit not to exceed fifteen percent (15$) of the net cost. No extra work shall be performed or change made unless in the pur- suance of a written order from the District stating that the extra work or change is authorized, and setting forth the basis upon which payment therefor is to be made, and no claim for an addition to the contract sum shall be valid unless so ordered, provided, however, that nothing in this article shall excuse the Contractor from proceeding with the prosecution of the work so changed. The Contractor shall, when required by the District, furnish an itemized breakdown of the quantities and prices used in computing the value of any change that might be ordered. (c) Removal of Obstructions: The Contractor shall remove and dispose of all structures, debris or other obstructions of any character to the construction of the work. Where such obstructions consist of improvements not required by law to be removed by the owner thereof, all such improvements shall be re- moved, maintained and permanently replaced by the Contractor at his expense. (d) Fublic Utilities: In case it should be necessary to move the property of any owner of a public utility or franchise, the cost of which, because of the terms of any franchise or for any other reason, must be borne by the Standard Provisions - 2 owner thereof, such o,wafteF- ahall upon proper application by the Contractor be notified by the District^ Representative to move such property within a specified reasonable ti^e, and the Contractor shall not interfere with said property until after the expiration of the time specified. In case it should be necessary to move or temporarily maintain the property of any public utility or any other property, the cost of which is not required to be borne by the owner thereof, the Contractor shall bear all expenses inci- dental to the removal or temporary maintenance of such property in a manner satisfactory to the owner thereof; it being understood that in such cases the owner has the option of doing such work with his own forces, or permitting the work to be done by the Contractor. The right is reserved to the State, County or District and to owners of public utilities and franchises to enter at any time upon any street, alley, right of way or easement for the purpose of making changes in their property made nec- essary by the work, for the purpose of maintaining and making repairs to their property. (e) Final Clean-Up: Upon completion and before making application for accep- tance of the work, the Contractor shall clean all rights of way, streets, borrow pits, and all other grounds occupied by him in connection with the work of all rubbish, excess materials, temporary structures and equipment, and all parts of the work shall be left in.a neat and presentable condition. SECTION III - CONTROL OF THE WORK (a) Authority of the District's Representative: The District's Representative shall have general supervision and direction of the work and may be represented on the work by duly authorized assistants. This District's Representative shall decide any and all questions which may arise as to the quality or acceptability of materials furnished and work performed, and as to the manner of performance and rate of progress of the work, all questions as to the interpretation of the Plans and Specifications and all questions as to the acceptable fulfillment of the Contract on the part of the Contractor. (b) Plans: The approved Plans shall be supplemented by such working drawings as are necessary to control the work adequately. All such drawings shall be consistent with the contract documents, true developments thereof, and reason- ably inferable therefrom. All such drawings delivered to the Contractor shall be deemed written instructions to the Contractor. The District will furnish to the Contractor, free of charge, all copies of drawings and Specifications reasonably necessary for the execution of the work. The Contractor shall keep one set of drawings and Specifications in good order available to the District's Representative and to his representatives at the site of the work. The Plans for the work shall show conditions as they are supposed or believed by the Engineer to exist; but it is not intended or to be inferred that the conditions as shown thereon constitute a representation by the District or its officers that such conditions are actually existent nor shall the District, any of its officers, or the Engineer be liable for any loss sustained by the Standard Provisions - 3 Contractor as a result of any variance of the conditions as shown on the Plans and the actual conditions revealed during the progress of the work, or otherwise. (c) Conformity with Plans and Allowable Deviations; Finished surfaces in all cases shall conform with the lines, elevations, grades, cross sections, and dimensions shown on the approved Plans, or if no specific elevations are shown on the Plans, the elevations and grades furnished by the District's Representa- tive shall govern. (d) Coordination of Plans and Specifications; Should it appear that the work to be done or any of the matters relative thereto are not sufficiently detailed or explained in the Specifications or on the Plans, the Contractor shall apply to the District's Representative for such further explanations as may be neces- sary and shall conform to them as part of the Contract, so far as may be con- sistent with the original Specifications; and in the event of any doubt or question arising respecting the true meaning of the Specifications, reference shall be made to the District's Representative, whose decision thereon shall be final. In the event of any discrepancy between any drawing and the figures written thereon, the figures shall be taken as correct. (e) Supervision by the Contractor; The Contractor shall give efficient super- vision to the work, using his best skill and attention. Unless personally present on the premises where the work is done, the Contractor shall designate and keep an agent or representative on the work at all times during Its progress, and any written or verbal directions or requests of the District's Representative delivered to such representative shall have the same force and effect as if delivered to the Contractor personally. (f) Reference Points; The Engineer shall establish all reference points and sur- vey all lines and grades necessary for the execution of the work. The Contractor shall carefully preserve all reference points, bench marks and other survey points and, In case of willful or careless destruction, he shall be liable for and charged with the cost of their replacement,.and of any expense resulting from their unnec- essary loss or disturbance. Such surveys shall constitute instructions from the Engineer, and the Contractor shall not proceed with the work until he has made timely demand upon the Engineer for such surveys, and until all necessary points, lines and grades have been established. (g) Inspection; The District's Representative shall at all times have access to the work during construction and shall be furnished with every reasonable facility for ascertaining full knowledge respecting the progress, workmanship and character of materials used and employed in the work. Whenever the Contractor varies the period during which work is carried on each day, he shall give due notice to the District's Representative so that proper inspection may be provided. Any work done in the absence of the District's Representative will be subject to rejection. No materials shall be installed until approved by the District's Representative or his representative. All installations which are to be backfilled shall be inspected and approved by the District's Representative prior to backfilling and the Contractor shall give due notice in advance of backfilling to the District's Representative so that proper inspection may be provided. Standard Provisions - 4 The Inspection of the work shall not relieve the Contractor of any of his obligations to fulfill the Contract as prescribed. Defective work shall be made good, and unsuitable materials may be rejected notwithstanding the fact that such defective work and unsuitable materials have, been previously over- looked by the District's Representative and accepted. (h) Removal of Defective and Unauthorized Work: All work which has been re- jected shall be remedied, or removed and replaced by the Contractor in an acceptable manner and no compensation will be allowed him for such removal or replacement. Any work done beyond the lines and grades shown on the Plans or established by the District's Representative, or any extra work done with- out written authority, will be considered as unauthorized and will not be paid for. Work so done may be ordered removed at the Contractor's expense. Upon failure on the part of the Contractor to comply promptly with any order of the District's Representative made under the provisions of this Article, the Dis- trict's Representative shall have authority to cause defective work to be re- medied or removed and replaced, and unauthorized work to be removed, and to deduct the costs from any monies due or to become due the Contractor. (I) Temporary Suspension of Work: The District's Representative shall have the authority to suspend the work wholly or in part for such time as he may deem necessary due to the failure on the part of the.Contractor to carry out orders given, or to perform any provisions of the Contract. The Contractor shall immediately comply with the written order of the District's Representative to suspend the work wholly or in part. The work shall be resumed when methods or defective work are corrected as ordered or approved in writing by the Dis- trict 's Representative. In the event that a suspension of work is ordered as provided above, such sus- pension of work shall not relieve the Contractor of his responsibility to com- plete the work within the time limit set forth in the Special Provisions, and shall not be considered cause for extension of the time for completion, and further, such .suspension of work shall not entitle the Contractor to any addi- tional compensation. (j) Errors or Discrepancies Noted by Contractor: If the Contractor, either before commencing work or in the course of the work, finds any discrepancy be- tween the Specifications and the drawings, or between either and the physical conditions at the site of the work, or finds any error or omission in any of the drawings or in any survey, he shall promptly notify the District's Repre- sentative in writing of such discrepancy, error or omission. If the Contractor observes that any drawings or Specifications are at variance with any applicable law, ordinance, regulation, order or decree, he shall promptly notify the Dis- trict's Representative in writing of such conflict. The District's Representative, on receipt of any such notice, shall promptly investigate the circumstances and give appropriate instructions to the Con- tractor. Until such instructions are given, any work done by the Contractor, either directly or indirectly after his discovery of such error, discrepancy or conflict, will be at his own risk and he shall bear all costs rising there- from. Standard Provisions - 5 (k) Equipment: The Contractor must furnish adequate equipment to perform properly the work in a workmanlike manner in accordance with these Specifica- tions. Such equipment must be in a good state of repair and maintained in such state during the progress of the work. No worn or obsolete equipment shall be used, and in no case shall the maker's rating of capacity for any equipment be exceeded. (1) Shop Drawings: The Contractor shall at his own expense furnish for the approval of the Engineer shop drawings for all material and equipment he pro- poses to use. These shop drawings shall be checked by the Engineer and re- turned to the Contractor within five (5) working days of their receipt by- the Engineer. All shop drawings shall be submitted in quadruplicate, accompanied by a letter of transmittal, and shall be addressed to the Engineer for approval. The letter of transmittal, shall give a list of the numbers of the drawings sub- mitted. All drawings must be marked with the name of the project and the name of the Contractor and be numbered consecutively. All drawings must be complete in every respect. The Contractor shall make such corrections as shall be required by the Engineer and receive the Engineer's stamp of approval before commencing the work involved. If the shop drawings show variations from the Contract requirements because of standard shop practices or other reasons, the Contractor shall make specific mention of such variations in his letter of transmittal in order that (if accep- table) suitable action may be taken for proper adjustment of the Contract; other- wise, the Contractor will not be relieved of the responsibility for executing the work in accordance with the Contract, even though the shop drawings have been approved. Approval of shop drawings will be general and shall not relieve the Contractor from the responsibility for proper fitting and construction of the work, nor from furnishing the material and work required by the Contract which may not be indicated in the shop drawings when approved; neither does it relieve him from responsibility for errors in shop drawings. SECTION IV - CONTROL OF MATERIAL (a) Quality of Materials: All equipment, materials and supplies to be incor- porated in the work shall be new unless otherwise specified. Unless otherwise specifically provided for in the Specifications, all workmanship, equipment, material and articles incorporated in the work covered by the Contract are to be of the best available grade of their respective kind. Whenever in the Spec- ifications any material, process or article is indicated or specified by grade, patent or proprietary name, or by name of manufacturer, such specification shall be deemed to be used for the purpose of facilitating description of the materials, process or articles desired, and shall be deemed to be followed by the words "or equal", and the Contractor may offer any material or process which shall be sub- stantially equal or better in every respect to that so indicated or specified; provided, however, that if the material, process or article offered by the Con- traotor is not, in the opinion of the Engineer and/or District's Representative, substantially equal or better in every respect to that specified, then the Con- tractor must furnish the material, process or article specified or one that in the opinion of the Engineer and/or District's Representative is the substantial equal or better thereof in every respect. In the event that the Contractor fur- nishes the material, process or article better than the specified, the difference in cost of such material, process or article so furnished shall be borne by the Contractor. Standard Provisions - 6 (b) Samples and Tests: At the option of the District's Representative the source of supply of each of the materials shall be approved by the District's Representative before delivery is started and before such material is used in the work. Representative preliminary samples of the character and quality prescribed shall be submitted by the Contractor or producer of all materials to be used in the work for testing or examination as desired by the District's Representative. All tests of materials furnished by the Contractor shall be made in accordance with commonly recognized standards of national organizations and such special methods and tests as are prescribed in the Specifications. The Contractor shall furnish such samples of materials as are requested by the Dis- trict's Representative without charge. No material shall be used until i,t has been approved by the District's Representative. Samples will be secured and tested whenever necessary to determine the quality of material. (c) Defective Materials: All materials not conforming to the requirements of the Specifications shall be considered as defective and all such materials, whether in place or not, shall be rejected and shall be removed immediately from the site of the work unless otherwise permitted by the District's Repre- sentative. No rejected material, the defects of which have been subsequently corrected shall be used until approved in writing by the District's Representa- tive. Upon failure on the part of the Contractor to comply with any order of the District's Representative made under the provisions of this article, the District shall have authority to remove and replace defective material at the expense of the Contractor.. (d) Storage of Materials: All materials for use in the work shall be stored by the" Contractor in such a manner as to prevent damage from exposure to the elements, admixture of foreign materials or from any other cause. The Con- tractor shall be entirely responsible for damage or loss by weather or other causes as to work under the Contract. SECTION V - LEGAL RELATIONS AND RESPONSIBILITY (a) Laws to be Observed: The Contractor shall keep himself fully informed of all laws, ordinances, and regulations which in any manner affect those en- gaged or employed in the work, or the materials used in the work, or which in any way affect the conduct of the work, and of all such orders and decrees of bodies or tribunals having any jurisdiction or authority over the same. If any discrepancy or inconsistency is discovered in the Plans, drawings, Speci- fications, or other contract documents in relation to any such law, ordinance, regulation, order or decree, the Contractor shall forthwith report the same to the District's Representative in writing. He shall at the time observe and comply with all such existing and future laws, ordinances, regulations, orders and decrees, and shall protect and indemnify the District, the Board of Directors, the Engineer, and all of its and their officers and agents, against any claim or liability arising from or based on the violation of any such law, ordinance, regulation, order or decree, whether by himself or his employees. (1) Hours of Labor - The Contractor shall forfeit to the District Ten Dollar's($10.00) for each workman employed in the execution of this Contract by the Contractor or by any subcontractor for each calendar day during which any workman is required or permitted to labor more than Standard Provisions - 7 eight (8) hours in violation of the provisions of Part 7 of Division 2 of the Labor Code of the State of California. (2) Alien Labor - The Contractor and any subcontractor, agent or rep- resentative shall not employ and shall not cause or allow to be employed any alien except in cases of extraordinary emergency caused by fire, flood or danger to life or property. The Contractor and any subcontractor shall forfeit as a penalty to the District Ten Dollars ($10.00) for each alien employed in the execution of this Contract, for each calendar day, or por- tion thereof, during which such alien is permitted or required to labor in violation of the provisions of Part 7 of Division 2 of the Labor Code of the State of California. (3) Prevailing Wage - The Contractor shall, as a penalty to the District, forfeit Ten Dollars ($10.00) for each calendar day or portion thereof, for each workman paid less than the general prevailing rate of wages in the locality of the District as set forth in the Notice Inviting Sealed Pro- posals (Bids). The specified wage rates are minimum only, and the District will not consider any claims for additional compensation made by the Con- tractor, because of payment by the Contractor of any wage rate in excess of the applicable minimum rate. (4-) Apprentices - The minimum wage rates, if any, specified for apprentices shall apply only to persons working with the tools of the trade they are learning under the direct supervision of journeyman mechanics, except as otherwise required by law. The number of apprentices in each trade or occupation employed by the Contractor or any subcontractor shall not ex- ceed the number permitted by the applicable standards of the United States Department of Labor, or in the absence of such standards, the number per- mitted under the usual practice prevailing between the unions and employ- er's associations of the respective trades or occupations. (5) Domestic Materials - Only such unmanufactured articles, materials or supplies as have been mined or produced in the United States of America, and only such manufactured articles, materials, or supplies that have been manufactured in the United States of America substantially from such arti- cles, materials and supplies shall be employed under this Contract in the construction of the project. (6) Convict-Made Materials - No materials manufactured or produced in a penal or correctional institution shall be incorporated in the project under this Contract. (b) Permits and Licenses: The Contractor's attention is directed to the applicable section of the Special Provisions. (c) > Patents: The Contractor shall assume all costs arising from the use of patented materials, equipment, devices or processes used on or incorporated in the work and agrees to indemnify and save harmless the District, the Board of Directors, and the Engineer and their duly authorized representatives from all suits of law, or action of every nature for or on account of the use of any patented materials, equipment, devices, or processes. Standard Provisions - 8 (d) Public Convenience and Safety: The Contractor shall so conduct his operations as to cause the least public obstruction and inconvenience to public travel. Convenient access to driveways, houses and buildings along the line of work shall be maintained and temporary crossings shall be pro- vided and maintained in good condition. Not more than one crossing or inter- secting street or road shall be closed at any one time without the approval of the District's Representative. The Contractor shall furnish, erect and maintain such fences, barriers, lights and signs as are necessary to give adequate warning to the public at all times of any dangerous conditions to be encountered as a result of the construction work. The Contractor shall furnish the District's Representative with the name, address and local telephone number of the person responsible for the maintenance of barriers, signs, lights and all other accident prevention devices. (e). Use of Explosives: When the use of explosives is necessary for the prose- cution of the work, the Contractor shall use the utmost care not to endanger life or property. All explosives shall be stored in a secure manner in accor- dance with the provisions of Division XI of the Health and Safety Code, Chapter 68, Statutes of 1939. as amended, and shall be used in compliance with all State and County Laws, ordinances and regulations governing such use, and all such storage places shall be clearly marked "DANGEROUS EXPLOSIVES". (f) Preservation of Property: The Contractor shall exercise due care to avoid injury to existing District owned improvements.or facilities, utility facilities, adjacent property, and other improvements, and trees and shrubbery that are not to be removed. All trees and shrubbery that are not to be removed, and pole lines, fences, signs, survey markers and monuments, buildings and structures, conduits, pipe- lines under or above ground, sewer and water lines, all highway or street fac- ilities and any other improvements or facilities within or adjacent to the work shall be protected from Injury or damage, and if ordered by the District's Rep- resentative, the Contractor shall provide and install suitable safeguards to protect such objects from injury or damage. If such objects are injured or damaged by reason of the Contractor's operation, they shall be replaced or re- stored, at the Contractor's expense, to a condition as good as when the Con- tractor entered upon the work, or as good as required by the Specifications, if any such objects are a part of the work being performed. The fact that any such pipe or other underground facility is not shown on the Plans shall not relieve the Contractor of his responsibility under this article. It shall be the Contractor's responsibility to ascertain the exist- ence of any underground Improvements or facilities which may be subject to damage by reason of his operations. (g) 'Responsibility for Damage: The District, the Board of Directors, the Engineer or their authorized assistants shall not be answerable or accountable in any manner for any loss or damage that may happen to the work or any part thereof, or for any material or equipment used in performing the work, or for injury or damage to any person or persons, either workmen or the public, or for damage to adjoining property from any cause whatsoever during the progress of the work, or any time before final acceptance of the work. Standard Provisions - 9 The Contractor shall Indemnify and save harmless the District, the Board of Directors, the Engineer or their authorized assistants from any suits, claims or actions brought by any person or persons for or pn account of any injuries or damages sustained or arising in the construction of the work. (h) Personal Liability: Neither the Board of Directors, the Engineer, nor any other officer or authorized assistant or agent of the District shall be personally responsible for any liability arising under the Contract. (i) Contractor's Responsibility for Work: The Contractor shall be respons- ible for all damages to persons or property that occur as a result of his. fault or negligence in connection with the prosecution of the Contract, and shall be responsible for the proper care and protection of all materials de- livered and work performed until completion and final acceptance by the Dis- trict. The Contractor shall provide such sheet covering and enclosures as are nec- essary to protect all work and materials against damage by weather conditions. The Contractor shall take adequate precautions in protecting existing curbs, trees, sidewalks, pavements, utilities, adjoining property and structures and avoid damage thereto, and he shall at his own expense completely repair any damage thereto caused by his operations. As required by law, the Contractor shall shore up, brace, underpin and pro- tect as may be necessary all foundations and other parts of all existing structures adjacent and adjoining the site of the project which are in any way affected by the excavation or other operations connected with the per- formance of the work under this Contract. Whenever any notice is required to be given by the District or the Contractor to any adjacent or adjoining landowner or other party before commencement of any work under this Contract, such notice shall be given by the Contractor. The Contractor shall indemnify the District and save it harmless from any damages on account of settlements or the loss of lateral support of adjoining property, or from all loss and expense, and from all damages for which the District may become liable In consequence of such Injuries or damage to trees and to adjoining and adjacent structures and their premises. In an emergency affecting the safety of life or property, including adjoining property, the Contractor, without special instructions or authorizations, Is authorized to act at his discretion to prevent such threatened loss or injury, and he shall so act as though instructed to do so by the District. (j) Mutual Responsibility of Contractors: If through acts of neglect on the part of the Contractor, any other contractor or any subcontractor shall suffer loss or damage on the work, the Contractor agrees to settle with such other contractor or subcontractor by agreement or arbitration, if such other contractor or subcontractor will so settle. If such other contractor or sub- contractor shall assert any claim against the District on account of any dam- age alleged to have been so sustained, the District shall notify the Contractor, who shall indemnify and save harmless the District against any such claim. The Contractor must ascertain to his own satisfaction the scope of the project and the nature of any other contracts that have been or may be awarded by the Dis- trict in the prosecution of the project, to the end that the Contractor may perform this Contract in the light of such other contracts, if any. Standard Provisions - 10 Nothing herein contained shall be interpreted as granting to the Contractor exclusive occupancy of the site of the project. The Contractor shall not cause any unnecessary hindrance or delay to any other contractor working on the project. If the performance of any Contract for the project is likely to be interfered with by the simultaneous performance of some other contract or contracts, the District, through its representative, shall decide which contractor shall cease work temporarily and which contractor shall continue, or whether the work under the contracts can be coordinated so that the con- tractors may proceed simultaneously. On all questions concerning conflicting interests of contractors performing related work, the decision of said Dis- trict's Representative shall be binding upon all contractors concerned and the District shall not be responsible for any damages suffered or extra costs incurred by the Contractor resulting directly or indirectly from the award of performance or attempted performance of any other contract or contracts on the project, or caused by a decision or omission of the District respecting the order of precedence in the performance of the Contract. (k) Notice and Service Thereof: Any notice required or given by one party to the other under the Contract shall be in writing and shall be dated and signed by the party giving such notice or by a duly authorized representative of such party. Any such notices shall not be effective for any purpose what- soever unless served in the following manner, namely: If the notice is given to the District, by personal delivery thereof to the Secretary, or by depositing the same in the United States mail, enclosed in a sealed envelope addressed to the District, to the attention of said Sec- retary, postage prepaid and registered. If the notice is given to the Contractor by personal delivery thereof to said Contractor or to his authorized representative at the site of the project or by depositing the same in the United States mail, enclosed in a sealed envelope addressed to said Contractor at his regular place of business or such other address as may have been established for the conduct of the work under this Contract, postage prepaid and registered. (1) Warranty, of Title: No materials, supplies or equipment for the work under this Contract shall be purchased subject to any chattel mortgage or under a conditional sale contract or other agreement by which an interest therein or any part thereof is retained by the seller or supplier. The Con- tractor warrants clear and good title to all materials, supplies and equip- ment installed and incorporated in the work, and agrees upon completion of all work to deliver the premises, together with all improvements and appur- tenances constructed or placed thereon by him to the District free from any claims, liens, encumbrances, or charges, and further agrees that neither he nor any person, firm or corporation furnishing any material or labor for any work covered by the Contract shall have any right to a lien upon the premises or any improvement or appurtenance thereon, provided that this shall not pre- clude the Contractor from installing metering devices or other equipment of utility companies or of municipalities, the title of which is commonly retained by the utility company or the municipality. Nothing contained in this article, however, shall defeat or impair the right of such persons furnishing materials or labor under any bond given by the Contractor for their protection, or any right under any law permitting such persons to look to funds due the Contrac- tor, in the hands of the District. The provisions of this article shall be Standard Provisions - 11 Inserted in all subcontracts and material contracts, and notices of its provisions shall be given to all persons furnishing materials for the work when no formal contract is entered into for such materials. (m) Termination for Breach: If the Contractor refuses or fails to prosecute the work or any separable part thereof with such diligence as will insure its completion within the time specified herein, or any extension thereof, or fails to complete such work within such time, or if the Contractor should be adjudged a bankrupt, or if he should make a general assignment for the bene- fit of his creditors, or if a receiver should be appointed on account of his insolvency, or if he or any of his subcontractors should violate any of the provisions of this Contract, the District may serve written notice upon the Contractor and his surety of its intention to terminate this Contract, said notice to contain the reasons for such intention to terminate this Contract; and unless within ten (10) days after the service of such notice such viola- tions shall cease and satisfactory arrangements for the corrections thereof be made, this Contract shall, upon the expiration of said ten (10) days, cease and terminate. In the event of any such termination, the District shall immediately serve written notice thereof upon the surety and the Contractor, and the surety shall have the right to take over and perform the Contract, provided however, that if the surety within fifteen (15) days after the serving upon it of a notice of termination does not give the District written notice of its in- tention to take over and perform the Contract, or does not commence performance thereof within thirty (30) days from the date of serving said notice, the Dis- trict may take over the work and prosecute the same to completion by Contract or by any other method it may deem advisable for the account and at the ex- pense of the Contractor, and his surety shall be liable to the District for any excess cost or other damage occasioned the District thereby, and in such event the District may, without liability for so doing, take possession of and utilize in completing the work such materials, appliances, plants and other property belonging to the Contractor that may be on the site of the work and be necessary therefor. The foregoing, provisions are In addition to and not in limitation of any other rights or remedies available to the District. (n) Prohibitive Interests: No officer of the District who is authorized in such capacity and on behalf of the District to negotiate, make, accept or approve, or to take part in negotiating, making, accepting or approving any architectural, engineering, inspection, construction or material supply con- tract, or any subcontract in connection with the construction of the project, shall become directly or indirectly interested personally in this Contract or any part thereof. No officer, employee, architect, attorney, engineer or in- spector of or for the District who is authorized in such capacity and on be- half of the District to exercise any executive, supervisory or other similar function in connection with the construction of the project, shall become directly or indirectly interested personally in this Contract or any part thereof. Standard Provisions - 12 SECTION VI - PROSECUTION AND PROGRESS (a) Subcontracting: Specialty subcontractors shall be utilized for the performance of such part of the work under this Contract as under normal contract practices are performed by specialty subcontractors, unless the District determines that the general Contractor has heretofore customarily performed such specialty work with his own organization and is equipped to do so, or unless the District determines that the performance of specialty work by specialty contractors will result in increased cost or inordinate delays, provided, however, that the Contractor shall not subcontract any work to be performed or any materials to be furnished in the performance, of this Contract without the prior written consent of the District. If the Contractor shall subcontract any part of this Contract, the Contractor shall be as fully responsible to the District for the acts and omissions of his subcontractor and of the persons either directly or indirectly employed by his subcontractor as he is for the acts and omissions of persons directly employed by'himself. Nothing contained in the contract documents shall create any contractual relationship between any subcontractor and the Dis- trict. The Contractor shall bind every subcontractor (and every subcon- tractor of a subcontractor) to be bound by the terms of the contract docu- ments as applicable to his work, unless specifically noted to the contrary in the subcontract in question, approved in writing as satisfactory to the District. (b) Assignment of Contract: The Contractor shall not assign this Contract or any part thereof nor any monies due or to become due thereunder, without the prior written consent of the District. No assignment of this Contract shall be valid unless it shall contain a provision that the funds to be paid to the assignee under the assignment are subject to a prior lien for services rendered or materials supplied for performance of the work called for under said Contract in favor of all persons, firms or corporations rendering such services or supplying such materials. (c) Construction Schedule: Within five (5) days after execution of the Contract, the Contractor shall deliver to the District's Representative a construction progress schedule in form satisfactory to the District's Repre- sentative showing the proposed dates of commencement and completion of each of the various subdivisions of the work required under the contract documents, and the anticipated amount of each monthly payment that will become due the Contractor in accordance with the progress schedule. (d) Character of Workmen: Any person who may be in the employ of the Con- tractor and who the District's Representative may deem incompetent or unfit shall be dismissed from the work and shall not again be employed on it except with the written consent of the District's Representative. (e)- Temporary Suspension of Work; The District's Representative shall have the authority to suspend the work wholly or in part for such time as he may deem necessary due to the failure on the part of the Contractor to carry out orders given, or to perform any provision of the Contract. The Contractor shall immediately comply with the written order of the District's Representative to suspend the work wholly or In part. The work shall be resumed when methods Standard Provisions - 13 or defective work are corrected as ordered or approved in writing by the District's Representative. In the event that a suspension of work is ordered as provided above, such suspension of work shall not relieve the Contractor of his responsibility to complete the work within the time limit set forth in Section II of the Special Provisions, and shall not be considered cause for extension of the time for completion, and further, such suspension of work shall not entitle the Contractor to any additional compensation. (f) Time of Completion and Liquidated Damages: The Contractor's attention is directed to the Special Provisions. SECTION VII - ESTIMATES AND PAYMENTS (a) jPartial Payments: The District shall on or before the tenth (10) day of each calendar month after actual construction work is started, except in case of final estimate hereinafter provided, cause an estimate in writing to be made by the District's Representative of the total amount of the work done and materials furnished by the Contractor and incorporated into the work to the first (1st) day of the month in which the estimate is made. In esti- mating such value, the District's Representative may take into consideration, along with other facts and conditions deemed by him to be proper, the ratio of the difficulty of the work done to the probable difficulties of the work to be done. The District shall retain ten percent (10$) of such estimated value as part security for the fulfillment of the Contract by the Contractor, and shall within ten (10) days after the preparation of such estimate pay to the Contractor the balance of such estimated value after deducting therefrom all previous payments and all sums to be kept or retained under the terms of the Contract. (b) Final Payment: The District's Representative shall, after the satisfactory completion of the work,make a final estimate of the amount of work done there- under and the value of said work, and the District shall pay the entire sum so found to be due after deducting therefrom all previous payments and all amounts to be,retained under the provisions of the Contract. All prior par- tial estimates and payments shall be subject to correction in the final esti- mate and payment. The final payment shall not be due and payable until the expiration of thirty-five (35) days from the date of acceptance of the work by the District. No certificate given or payment made under the Contract, except the final certificate or final payment, shall be conclusive evidence of the performance of the Contract, either wholly or in part, and no payment shall be construed to be in acceptance of any defective work or improper materials. (c) > Payments to be Made by Contractor: The Contractor shall pay: (1) For all transportation and utility services, not later than the twenty-fifth (25th) day of the calendar month following that in which said services are rendered. (2) For all materials, tools and other expendable equipment to the Standard Provisions - 14 extent of ninety percent (90$) of the cost thereof, not later than the twenty-fifth (25th) day of the calendar month following that in which said materials, tools and equipment are delivered at the site of the project, and the balance of the cost thereof not later than the thirtieth (30th) day following the completion of that part of the work in or on which such materials, tools and equipment are incorporated or used. (3) To each of his subcontractors within five (5) days following each payment to the Contractor, the respective amount allowed the Contractor on account of the work performed by his subcontractors, to the extent of each subcontractor's interest therein. (d) District's Right to Withhold Certain Amounts and Make Application Thereof: In addition to the amount which the District may retain under the above, the District may withhold a sufficient amount or amounts or any pay- ment otherwise due to the Contractor as in its judgment may be necessary to cover: (1) Payments which may be past due and payable for just claims against the Contractor or any subcontractors, for labor or materials furnished in or about the performance of the work on the project under this Con- tract. (2) For defective work not remedied. (3) For failure of the Contractor to make proper payments to his sub- contractor. The District may apply such withheld amount or amounts to the payment of such claims in its discretion. In so doing, the District shall be deemed the agent of the Contractor and any payments so made by the District shall be considered as a payment made under the Contract by the District to the Contractor, and the District shall not be liable to the Contractor for such payment made in good faith. Such payments may be made without prior judicial determination of the claim or claims. The District will render to the Contractor a proper accounting of such funds disbursed in behalf of the Contractor. The District may withhold funds due Contractor equal in amount to any and all claims filed with District according to law. District shall not disburse said funds except under order of Court of competent jurisdiction or upon written order of Contractor. SECTION VIII - GUARANTEES Besides guarantees required elsewhere, the Contractor shall and hereby does guarantee all work for a period of one (1) year after the date of acceptance of the work by the District and shall repair and replace any and all such work, together with any other work which may be displaced in so doing, that may prove defective in workmanship and/or materials within the one (I) year period from date of acceptance, without expense whatsoever to the District, ordinary wear and tear and unusual abuse or neglect excepted. In the event of failure to comply with the above-mentioned conditions within a week after being notified in writing, the District is hereby authorized to proceed to have the defects repaired and made good at the expense of the Contractor, who hereby agrees to pay the cost and charges therefor immediately on demand. Standard Provisions - 15 CARLSBAD MUNICIPAL WATER DISTRICT San Diego County, California SQUIRES DAM Detail Specifications SECTION I - GENERAL CONDITIONS A. Description of Work: The work to be done under these Specifications con- sists of performing all operations and furnishing all materials necessary or appurtenant to the construction and completion of all work herein specified, and in accordance with the Plans entitled "Construction Plans for Squires Dam". B. Standard Specifications; The Standard District Specifications herein re- ferred to are to be found following these Detail Specifications. C. Water to be Furnished by the Contractor; Water for construction, sterili- zation, and testing snail be furnished by and at the expense of -the Contractor«• The District will sell water to the Contractor at the West limit of the inlet- outlet pipeline. D. Soil and Geological Engineering Data; The District had subsurface explora- tion and laboratory testing work performed by Consulting Soil and Geological Engineers. The geological data, the drill holes, and the laboratory informa- tion obtained therefrom were prepared as a basis for the design of the Dam and appurtenant structures. The holes were drilled with bucket auger and rotary drilling equipment. Interpreted logs of the materials encountered during the drilling appear on Drawing Sheet No. 3, "Geological Profile and Drill Hole Logs". In addition to the soil and geological engineering data presented on the above drawing, the District has had several reports prepared for design use which present detailed soil andgeological information. These reports include: 1) "Design of Squires Dam and Appurtenant Structures for Carlsbad Municipal Water District", Boyle Engineering, February, 196l; 2) "Geological Conditions at Squires Canyon Dam Site, Carlsbad, California", Baylor Brooks, Consulting Geologist, July, i960; 3) "Soils Investigation--Proposed Dam Site Adjacent to Mount Hinton, San Diego County, California", Benton Engineering, Inc., August, I960. These reports are on file at the office of the Engineer at ^525 Mission Gorge Place, San Diego 20, California, and may be reviewed by prospective bid- ders after making suitable arrangements in advance. This Information was obtained primarily for design purposes and is hereby made available to the Contractor with the understanding that the District does not guarantee any interpretation of these records and data or the correct- ness thereof. The bidders shall make their own interpretation of the data and the Contractor must assume all responsibility for deductions and conclusions as to the nature of the materials to be excavated, the difficulties of excava- tion, and un-watering and maintaining the required excavations, Including borrow materials, and of doing the other work affected by the underground con- ditions at the site of the work, and for final preparation of the foundations for the embankment and structures. Carlsbad MWD BEWO 5241D Detail Specifications - 1 E. Inspection of Work by State of California, Department of Water Resources; Some features of the construction work included in the Contract will be sub- ject to inspection and approval by the Department of Water Resources of the State of California. In the event changes are required by the Department, necessitating the performance of work by the Contractor, in addition to the work included under the unit price items of the Contract, payment for such additional work will be made in accordance with the extra work provisions of the Contract as set forth elsewhere in these Specifications. F. Cooperation with Field Inspection Operations; The Contractor shall, In every reasonable way, cooperate with the Engineer in facilitating survey operations in the work area, the installation of the embankment instrumenta- tion, and in facilitating field control work in connection with stripping and earth embankment placement operations. The plant and other facilities of the Contractor shall be so located and the Contractor shall so conduct his work as not to interfere with necessary surveying, sampling and other measuring opera- tions performed by the District or their representative. The Contractor shall keep the Engineer informed, a reasonable time in advance, of the time and places at which he intends to do work, in order that lines and grades may be approved, that inspection may be provided, and that necessary measurements for record and payments may be made with a minimum of inconvenience to the Engineer or delay to the Contractor. The Contractor shall have no claim for extra compensation or otherwise, on account of any delay, occasioned by approving lines and grades or making necessary measurements, or by inspection. The Contractor shall preserve all bench marks, monuments, survey marks, and stakes, and in case of their removal or destruction by him or his employees, he shall be liable for the cost of their replacement. G. Material and Work Furnished by the District; The District will furnish the following articles and materials: G-l. Piezometrlc System; The District will have the piezometric system shown on Drawing Sheet No. 7> "Embankment Instrumentation", installed by forces not included in this Contract. After installation, these instru- ments will' be under continuous observation by the Engineer to determine the hydrostatic pressures developed in the embankment and along the found- ation during construction. It is necessary for these instruments to be installed as shown on the drawing, and for them to be maintained in ser- vice during construction. The District will have all of this work per- formed by others except as noted below. The Contractor shall cooperate with the Engineer in the scheduling and construction of the piezometer systems. Said cooperation shall include but not be limited to notifica- tion of the Engineer two weeks in advance of reaching the approximate piezometer elevations shown on the instrumentation drawing; and the back- filling and compaction of the trenches shall be performed by the Contrac- tor in accordance with the applicable requirements elsewhere in these Specifications. Payment for backfilling piezometric trenches shall be for the unit price bid for such work as provided in Section IV (F) of these Specifications. Such payment is to be the total amount due for all work to be done by the Contractor in connection with the installation of the piezometer system. The excavation work and the placement of the instru- ments and tubing will be accomplished on the weekend or other convenient Carlsbad CWD BEWO 52U1D Detail Specifications - 2 time, by others In such a manner as to minimize interference with the Contractor by the forces installing this equipment. G-2. Surface Settlement Markers; The surface settlement markers shown on Drawing Sheet No. J,"Embankment Instrumentation", will be installed by the Engineer at the completion of the construction of the embankment and will not interfere with the operations of the Contractor. H. Clean-Up; During the progress of the work, the Contractor shall keep the premises occupied by him in a neat and clean condition, and free from an un- sightly accumulation of rubbish. Upon completion of the work and before the final estimate is submitted, the Contractor shall at his own cost and expense satisfactorily dispose of or remove from the vicinity of the work all plants, buildings, rubbish, unused materials, concrete forms, and other equipment and materials belonging to him or used under his direction during construction and, in the event of his failure to do so, the same may be removed and disposed of by the District at the Contractor's expense. SECTION II - CLEARING AND GRUBBING A. General; Clearing shall consist of removing all objectionable material from the ground surface within the limits beneath the dam embankment, the reservoir area to Elevation 510, and the borrow areas designated by the Engineer for use. Grubbing shall consist of removing all objectionable material below the natural ground surface within the potential borrow areas and dam foundation areas. B. Materials and Workmanship; B-l. Clearing: Within the limits designated on the Plans, the area above the natural ground surface shall be cleared of all vegetable growth such as trees, logs, upturned stumps, roots of down trees, brush, heavy growth of grass and weeds, and all other combustible or deleterious materials. B-2. Grubbing; The area below the natural ground surface and within the limits on which the embankment is to be placed or borrow material is to be obtained shall be grubbed of all stumps, large roots, buried logs, and all other combustible or deleterious material. B-3. Disposal of Material; The material removed as specified above shall be piled and burned in a manner which will not present a nuisance or fire hazard to the adjacent property. The location of any burning and the time of burning shall be approved by the Engineer. The time, location and man- ner of burning will be subject to all public laws and agreements with pub- lic agencies, governing such operations. All ash or other refuse remaining after burning shall be disposed of in a suitable waste area or spread and disced or otherwise mixed into the native soil where approved by the Engineer. C. Measurement: Clearing and grubbing will be measured in any areas not shown on Drawing Sheet 1 by the acre or fraction thereof as determined by field sur- vey, with the areas computed with the use of a planimeter. The embankment Carlsbad MWD BEWO 5241D Detail Specifications - 3 contact area and the reservoir area will be measured to the applicable contact and contour lines shown on Drawing Sheet 1. D. Payment; Payment for the clearing and grubbing will be at the contract unit price per acre, provided the areas have been cleared and grubbed in com- pliance with these Specifications. Partial payments will be made on the basis of percentage of completion as established by the Engineer for each pay period. The unit price paid for clearing and grubbing shall be full compensation for furnishing all labor, materials, tools and equipment for completing the work required under this Section of the Specifications. SECTION III - DIVERSION AND CARE OF STREAM FLOW DURING CONSTRUCTION A. General; The Contractor shall divert or otherwise take care of normal or abnormal creek flood runoff in the vicinity of the dam construction area so that no damage shall be done to the excavation, embankments, trenches, or other features of the project during the construction of the dam. The Contractor shall be responsible for any injuries or damages to persons or property on or off the reservoir site due to the flow of the stream wherever it has been al- tered by his diversion or other handling facilities. Should any excavation be flooded or any embankment or appurtenances be damaged during construction, the Contractor shall repair all damages in accordance with the Plans and Specifi- cations without additional cost to the District. B. Materials and Workmanship; The Contractor shall construct and maintain all necessary channels and/or temporary diversion and protective works including pumping or other required measures for the removal and exclusion of water which would interfere with the proper construction and completion of the work. After having served their purpose, all temporary protective works shall be removed. C. Measurement and Payment; No separate payment will be made for the exclusion or removal of water and the cost thereof shall be considered to be included in the Contract prices for the various items of reservoir work and no additional allowance will be made therefor. SECTION IV - DAM CONSTRUCTION A. General; A-l. Scope of Work; The work covered by this Section consists of performing all operations necessary to strip beneath the dam contact area, to make the common and rock excavation for the cutoff trench, to procure, haul, place, moisture condition and compact impervious core material, sand drain material, gravel drain material, upstream and downstream shell zone material, upstream and downstream riprap, to plant the downstream slope protection, to drill grout holes, to grout where required, and to do all other work required to complete construction of the dam in accordance with these Specifications, the drawings, and as required by the Engineer. A-2. Lines, Grades, and Slopes; All excavation and fill shall be made to the lines, grades, and slopes shown on the Plans or as directed by the Carlsbad MWD BEWO 5241D Detail Specifications - U Engineer as the work progresses. The excavated slopes shall be finished in a workmanlike manner to the full depth and width required. The Con- tractor shall remove, at his own expense, any material which washes, sloughs, or slides into the excavation after it has been completed. The embankment slopes shall be finished in a workmanlike manner to the lines and grades shown on the drawings or as required by the Engineer. These slopes shall be maintained in the specified form until the acceptance of the Contract. Any changes in.quantities resulting from necessary field changes in lines, grades or dimensions shall not be made cause for claims which would change the unit prices bid for the work. A-3. Construction of Roadways and Haul Roads; All construction roadways and haul roads not shown on the Plans for permanent access shall be es- tablished and maintained by, and at the expense of, the Contractor. No other payment, as such, will be made for any temporary construction roads or other facilities necessary only for the construction of the project. A-U. Method of Computing Quantities: The quantities of excavation and embankment fill material will be computed by the method of average end areas from sections developed from the contract topographic map and the prescribed cut or embankment fill sections, or to the lines, grades and slopes required by the Engineer. The contract topographic map was pre- pared by photogrammetric means by Maddock & Assoc.-Engineers, Inc., to a scale of 1" equals 50 feet with a topographic interval of five feet. Prior to construction the Engineer will set convenient measurement bench marks at the upstream and downstream toes of the embankment from which all sub- sequent measurements will be made, such measurements being made by the Contractor for construction purposes and where necessary by the Engineer to check the conformance of the lines and grades to the Specification requirements and for the measurement of stripping or special cutoff re- quirements. B. Stripping; B-l. Genejal Requirements: The entire area to be occupied by the dam em- bankment shall be stripped to a sufficient depth to insure the removal of all loose, weak, organic, or other material not suitable for the foundation of the embankment. Excavated material shall be wasted where organic con- tent is excessive; where permitted by the Engineer, suitable material may be placed directly in the embankment, or stockpiled. Direct haul of material from excavation to embankment will be preferred to the use of stockpiled material, and payment will not be made for stockpiling or re- handling material. Stripping must be carried out far enough in advance of the embankment construction in order to insure that the embankment will not be inadvertently placed upon an area which has not been stripped and far enough in advance of operations so that the necessary foundation stripping inspection may be performed by the State Department of Water Re- sources representatives in such a manner as to not hold up the construc- tion operations. Any such holdups shall be the responsibility of the Con- tractor by virtue of poor programming or communications. Stripping opera- tions shall be programmed with the Engineer in such a manner as to allow Carlsbad MWD BEWO 52^1D Detail Specifications - 5 for reasonable scheduling of the State Engineer's Inspection of all foundation-stripped areas. (For the purposes of these Specifications, the dam foundation includes the abutments.) B-2. Measurement and Payment; For all depths of excavation up to and including three feet, the quantity of excavation for which payment will be made will be computed on the basis of an overall average depth of two feet. Should the Contractor feel that he is being required to excavate any area to a depth greater than three feet, then he may make a written request of the Engineer that a survey be made to determine the actual depth of excavation. In the event that the survey shows the actual depth to be in excess of three feet, that volume of stripping below three feet in depth will be included in the contract pay quantity for stripping excavation. If the survey shows the actual depth to be three feet or less, the Contractor shall pay for the cost of the survey and the amount thereof shall be deducted from the monies due him under the Contract. The contract price paid per cubic yard for stripping excavation shall in- clude full compensation for furnishing all labor, materials, tools and equipment and doing all the work involved in making the excavation and disposing of excavated material as specified, except that material placed in the dam embankment will also be paid for at the applicable contract unit price for fill material. Partial payments will be made on the basis of percentage completion as established by the Engineer for each pay period. The price paid per cubic yard for stripping excavation shall also include full compensation for doing all the work involved in wasting or stock- piling and rehandling the excavated material, as may be necessary prior to its being placed in the dam embankment. C. Cutoff Trench Excavation; C-l. General Requirements; The cutoff shall be excavated to at least the lines and grades shown on the drawing in order to provide a seepage cutoff through any near-surface alluvial material, low-density material, open cracks and joints due to desiccation of the top soil, root holes, and/or animal burrows. Where an examination of the cutoff trench indicates that any of these undesirable features extend to a greater depth than the extent of excavation at the time of the inspection, additional excavation shall be as required by the Engineer. It is believed that the majority of the cutoff trench excavation will be in common (soil) materials. However, some rock may be encountered at various locations in the cutoff trench. Where en- countered, they shall be prepared as required for foundation preparation, not necessarily excavated to predetermined dimensions. The method of ex- cavation, the foundation preparation as specified elsewhere herein and pay quantities for the two classes of material, rock and common, will be handled separately as provided for herein or as required by the Engineer. The cutoff excavation will require the approval of the Engineer and inspec- tion by the State Department of Water Resources representative, prior to placement of any fill or foundation preparation as required elsewhere herein. Carlsbad MWD BEWO 52^1D Detail Specifications - 6 It will be the responsibility of the Contractor to program his operations and arrange for the Department of Water Resources' inspection through the Engineer in such a manner as to prevent this inspection or approval from holding up construction operations. C-2. Classification of Cutoff Trench Excavation: There will be two classes of materials for the purposes of cutoff trench excavation, rock materials and common materials, as defined below: C-2.1. Rock Materials; Rock material includes all in-place solid rock which cannot be removed until loosened by blasting, barring, or wedging and all boulders or detached pieces of solid rock more than one cubic yard in volume. No material, except large boulders or detached pieces of solid rock, will be considered rock excava- tion, which is not actually loosened by blasting before removal, unless blasting is prohibited, and barring, wedging or similar methods are required by the Engineer. C-2.2. Common Material; Common material includes all material other than rock material defined above, including, but not restric- ted to, all earth material not exceeding one cubic yard in volume which can be removed efficiently by excavating machinery. C-J5. Blasting; Blasting operations, where required, will be subject to the approval of the Engineer. The explosives shall be of such quantity and power, and shall be used in such locations as will neither open seams or otherwise disturb the rock outside of the prescribed limits of excava- tion. As the excavation approaches its final limits, the depth of holes for blasting and the amount of explosives used in each hole shall be re- duced so that the underlying rock will not be disturbed or shattered. C-U. Disposition of Materials Excavated From Cutoff Trench: All suitable materials approved by the Engineer may be placed and compacted directly upon any approved foundation area which underlies the shell zones of the embankment. All unsatisfactory material shall be wasted at such locations and in such a manner as approved by the Engineer. C-5. Measurement and Payment; The volume of cutoff excavation to be paid for shall be the actual volume excavated from within the limits shown on the Plans and herein specified or as required by the Engineer. The price paid per cubic yard of cutoff excavation shall be according to the unit bid price for common or rock material as classified above, and shall in- clude full compensation for furnishing all labor, materials, tools, and equipment, and doing all work involved in making the excavation and dis- posing of excavated material as specified, including any stockpiling arid rehandling of the excavated material which may be necessary prior to its being placed in the reservoir embankment, except that material placed in the dam embankment will also be paid for at the applicable contract unit price for dam fill materials. Partial payments will be made on the basis of per- centage of completion as established by the Engineer for each pay period. The unit price paid for cutoff excavation shall be full compensation for furnishing all labor, materials, tools and equipment for completing the work required under this Section of the Specifications. Carlsbad MWD BEWO 524-1D Detail Specifications - 7 D. Foundation Preparation: D-l. General Requirements; The dam foundation preparation includes the moisture conditioning and surface compaction of all non-rock surfaces prior to the placement of compacted fill, but after all clearing, grubbing and stripping operations have been performed in accordance with the speci- fications contained elsewhere herein. In those areas where hard rock is encountered beneath the impervious core contact with foundation material, the dam foundation preparation will include hand scaling, sweeping, air and water jet cleaning of all rock surfaces which will be in contact with the impervious core fill material, slush grouting all such surfaces that are cracked or fractured and concrete grout packing of all pockets, overhangs, and cracks wider than one-half inch shall be required in these areas. The amount of foundation preparation work to be done is uncertain until the stripping and cutoff excavations have been completed. All such work will be performed in accordance with these Specifications and as required by the Engineer. The Contractor will not be entitled to an additional allowance above the contract unit prices by reason of all, any part, or none of this type of work being required. D-2. Foundation Areas Other Than Solid Rock; The entire abutment and stream bed foundation contact area with the embankment fill shall be cleared, grubbed, hand-stripped as required in other sections of these Specifications to a depth where suitable in-place material has been exposed. The surface of this material shall be moistened prior to placement of the fill in order to bring the foundation contact layer to about the same water content as the fill material to be placed thereon. All loose and otherwise disturbed surface material shall then be removed (in the impervious core area) or sur- face-compacted (in all other areas) to the same relative density required for the placement of compacted fill. D-3. Rock Areas in Contact with Impervious Core; All loose, drummy, and weathered rock or rock which is otherwise objectionable, including detached boulders, and cobbles shall be removed from the foundation area which will be in contact with the impervious core. Blasting shall only be required to remove overhangs and minor objectionable portions of the bedrock and to break up large boulders. Blasting shall be done only to the depth, amount, and extent that will neither crack nor damage the rock outside the limits of excavation as required by the Engineer. Such areas shall be left in a sound, unshattered condition. The relatively sound rock face shall be ex- posed and cleaned with an air and water Jet under satisfactory pressure for purposes of inspection which will be made to insure removal of all undesir- able material in this area. The rock surface and joint preparation is covered by the following paragraphs and consists of cleaning and flush- grouting the foundation and abutment surfaces that are to be in contact with the impervious core of the dam and concrete packing rock seams, joints, and other depressions where the foundation material consists of hard rock, in order to assure a tight seal and thorough contact between embankment fill and the foundation rock material so as to prevent the formation of a per- colation path along this contact. This work shall be done after the required clean-up work has been completed and approved by the Engineer. Carlsbad MWD BEWO 524-1D Detail Specifications - 8 D-3.1. Cleaning; Before placing the slush grout or concrete packing, the rock shall be cleaned by removing all soil, loose rock, and debris and shall be kept clean until such time as the grout or concrete is placed thereon. Immediately before placing the grout or concrete, the rock surface shall be sprinkled until thoroughly wet, but no pockets of standing water or unplugged seeps will be permitted. D-3.2. Slush Grout; The sound rock surface which will be in contact with the impervious core material in the embankment shall be slushed with a slurry of sand-cement-mortar grout, and thoroughly broomed, as directed, in such a manner as to fill all small open crevices, cracks, seams and holes, and to smooth out sharp irregularities on the flatter parts of the rock surface. It is not intended that such slush grouting should result in a continuous coating of grout over the smooth, un- broken portions of the rock surface involved since the purpose of the slush grout layer is to fill surface defects rather than to coat sound surfaces of rock. Mortar grout mixes shall be in the proportion di- rected by the Engineer, who will direct mix changes to suit the con- ditions encountered, but it is anticipated that most of the mortar grout will have a sand-cement ratio of 3.0. After placing the grout, any of the mortar which becomes loose, cracked, or broken shall be re- placed before placement of the superimposed fill. The grout shall be cured with a suitable application of Hunt's Process in accordance with the manufacturer's recommendations. D-3.3. Concrete Packing; Concrete packing of large joints (wider than one-half inch) cracks, holes, or other voids between in-place rock sur- faces will be required as directed by the Engineer. The purposes of this packing are: D-3.31. To develop a uniform slope to minimize differential embankment settlement. D-3.32. To prevent migration of fines from the embankment fill into the openings in the rock which might result in any of the undesirable features associated with piping or settlement with- in the embankment fill. D-3.33. To provide a relatively smooth and positive slope (no overhands allowed) on which to compact impervious fill. Con- crete packing may be accomplished by any method which will result in the complete filling of the voids by sound, dense concrete. The concrete shall be composed of portland cement, water and fine and coarse aggregate. The design of the mix shall be based on the minimum water-cement ratio necessary to; 1) secure a plastic workable mixture suitable for the specific conditions of placement; and 2) produce a product having durability, relative impermeability and strength in accordance with the standard concrete specifications contained herein. The concrete shall be cured with a suitable application of Hunt's Process in accordance with the Manufacturer's recommen- dations. D-4. Measurement and Payment; All foundation treatment work required herein except for slush grout and concrete packing shall be paid for by the applicable unit price bid for stripping or cutoff trench excavation, and no Carlsbad MWD BEWO 52U1D Detail Specifications - 9 payment shall be made for this work as such. Slush grout and concrete packing concrete will be measured by the actual amount of each material placed by deducting all surplus and waste material from the total amount of such material prepared for this process at the request of the Engineer. The contract unit prices per cubic foot for slush grout and concrete packing shall be full compensation for furnishing all equipment, supplies, materials, and performing all labor in connection with the required slush grout and concrete packing operations. Partial payments will be made on the basis of percentage of completion as established by the Engineer for each pay period. The unit price paid for the foundation preparation shall be full compensation for furnishing all labor, materials, tools and equip- ment for completing the work required under this section of the Specifications. E. Embankment Fill; E-l. General Requirements; The embankment fill work consists of furnishing all materials, tools, equipment, supplies, and performing all labor re- quired for excavating, hauling, placing, moisture-conditioning, and com- pacting the dam embankment fill to the lines, grades, and slopes shown on the drawings and as required by the Engineer. Embankment will be constructed using five types of material in six zones. The materials required are; Rock for riprap, sand for the sand drain zone, gravel for the gravel drain zone, fine grained material for the impervious core, and coarse grained or undifferentiated material for the up and down- stream shell zones, as specified in detail below. E-2. Compaction Equipment; Compaction equipment shall conform to the following requirements and shall be used as prescribed in paragraphs appli- , cable for each embankment zone hereinafter. E-2.1. Sheepsfoot Rollers: Each drum of the sheepsfoot rollers shall have a minimum diameter of 60 inches and minimum length of five feet. The drums shall have two tamper feet per row and each foot shall be approximately nine inches (9") long with a minimum end area of seven square inches. The roller shall consist of one or two drums; if two drums are used, then they shall be mounted in a fully oscillating yoke to allow effective tamping on uneven ground. The total weight of each empty roller shall be no less than 10,000 pounds and when fully loaded, the weight shall be at least 3,500 pounds per lineal foot of drum width. Two roller units may be operated in tandem providing this arrangement does not in any way decrease the effectiveness of the tamping action of each unit. The roller shall be pulled by a crawler- type tractor of sufficient power to operate the roller at a speed of approximately 3-1/2 miles per hour. E-2.2. Rubber-Tired Rollers; Rubber-tired rollers shall have a mini- mum of four wheels equipped with pneumatic tires. The tires shall be of such size and ply so that they can be maintained at tire pressures between 50 and 65 pounds per square inch for a 25,000 pound wheel load during rolling operations. The roller wheels shall be located abreast Carlsbad MWD BEWO 5241D Detail Specifications - 10 and be so designed that each wheel will carry approximately equal load in traversing uneven ground. The spacing of the wheels shall be such that the distance between the nearest edges of adjacent tires will not be greater than 50 percent of the width of a single tire at the operating pressure for a 25,000 pound wheel load. The roller shall have a rigid steel frame provided with a body suitable for ballast loading such that the load per wheel may be varied, as directed by the Engineer, from 18,000 to 25,000 pounds. The roller shall be towed . at speeds not to exceed ten miles per hour. E-2.3. Vibratory Rollers; Vibratory rollers may be used other than in the impervious core where approved by the Engineer. E-2.4. Crawler-Type Tractor: Crawler-type tractors used for compac- tion shall weigh not less than 3^,000 pounds (D-8 caterpillar) and shall have standard width treads. E-2.5. Power Tampers; Compaction of material, in areas where it is impractical to use a roller or tractor, shall be performed by the use of approved power tampers or vibratory compactors. E-2.6. Disc Harrow; An approved heavy duty disc harrow shall be used for breaking down, mixing, and aiding the moisture conditioning of the impervious core zone material. E-3. Laboratory Control Tests; Mechanical gradation analyses will be made in connection with the selection of the materials for the various zones of the dam as specified herein. Gradation tests will also be made periodi- cally during construction in order to insure that the materials used in the embankment fulfill the gradation requirements shown on the drawings. The compaction of the embankment fill materials will be controlled by comparing the results of field densities obtained using the sand cone method with the maximum densities obtained by the use of a laboratory test based on compac- tion of samples of the soil at from three to five different moisture con- tents in three equal layers, each layer receiving fifteen blows from a ten pound hammer dropping free from a height of 18 inches above the elevation of the compacted layer, using a one-thirtieth cubic foot mold. A curve of dry density versus moisture content will be plotted and the moisture con- tent producing the peak of the curve will be defined as the "optimum moisture content" and the dry density at the peak of the curve is defined as the "maximum density" of the material. E-U. Borrow Areas; The impervious core and shell zone materials shall be obtained primarily from the reservoir area in such a manner as to increase the storage capacity of the reservoir to the greatest practical extent above Elevation 460. After the available materials within this area (which lie beyond the no-borrow limit of 100 feet beyond the toe of the dam) has been exhausted, materials for these zones shall be obtained from within the reservoir property limits as shown on the Plan and Location Drawing Sheet 1. After exhausting the available supply of impervious zone material from within the reservoir property limits, additional impervious core material may be obtained from the borrow area designated on the drawings as Impervious Core Carlsbad MWD BEWO 52U1D Detail Specifications - 11 Reserve Borrow Area. The required riprap, sand, and gravel materials will be obtained from off-the-site sources which meet the specifications contained herein and on the drawings except where suitable on-site riprap rock boulders can be obtained as part of the riprap rock required. E-5. Placement and Compaction; The materials to be placed in the embankment shall be placed to the lines, grades, and slopes shown on the drawings and as required by the Engineer. No fill shall be placed on any part of the em- bankment foundation until such area has been inspected and approved by the Engineer. Oversize rocks having a dimension greater than six inches (6") shall not be allowed on the embankment except within the upstream portion of the upstream shell as shown on the drawing. All large roots, brush, and other debris shall be removed from the materials before placing or compact- ing them in the embankment. After dumping, embankment materials except rip- rap, and materials as otherwise specified herein shall be spread into approx- imately horizontal lifts not to exceed eight inches (8") in uncompacted thick- ness and shall be free from lenses, pockets, streaks, and layers of material differing substantially from the surrounding material in the same zone. The Contractor shall bring up the fill at approximately a uniform elevation over the entire embankment area. As soon as practicable after commencement of construction of the embankment, the vertical portion of the drain zone shall be constructed higher than the sides to provide a cross fall of from two to five percent (2% to 5/0. This cross fall shall be maintained as each success- ive layer of embankment is placed. If the compacted surface of any layer of material is, in the opinion of the Engineer too smooth to bond properly with the succeeding layer, it shall be roughened or loosened by scarifying or other means before the succeeding layer is placed thereon. During the dumping and spreading operations, the Contractor shall maintain at all times a force of men adequate to remove all roots, trash, debris, oversize stones, and other deleterious material from the embankment layers prior to compacting. Over- size stones may be wasted by placing them against the downstream toe of the dam. Roots, trash and debris shall be removed from the site. When the moisture content and the condition of the lift are satisfactory, the lift shall be compacted by not less than four passes of the compaction equip- ment required for the specific zone being compacted. A pass shall consist of the entire coverage of the area with the treads of the equipment speci- fied. It is anticipated that an average total moisture content of approxi- mately nine to thirteen percent (<)% to 13$) of the dry weight of the material will be required at the time of compaction, but the Contractor shall not be entitled to any additional compensation because of any variation in the amount of moisture required. Embankment material which contains less than the required moisture content shall be watered either at the source of mate-, rial or at the embankment or at both places. Compaction of embankment mate- rial which contains excessive moisture shall not be commenced until the mate- rial has been allowed to dry to such an extent that the specified relative compactions can be attained. The minimum compacted dry density of the in- place fill material shall be not less than 95 percent of the dry density as determined by the laboratory test procedure described above. The minimum number of passes for each zone shall be required and such additional passes as necessary to get the specified density shall be required. Portions of the fill not accessible to the roller shall be placed in layers not exceed- ing four inches (4-") in uncompacted thickness and shall be compacted with power tampers to the density required above. Rolling adjacent to the abut- ments will be accomplished with heavy pneumatic tired equipment in lieu of hand compaction wherever possible. Carlsbad MWD BEWO 524-1D Detail Specifications - 12 E-6. Riprap: Riprap will be placed in the zones shown on the embankment within the normal draw-down zone on the upstream slope of the embankment and along the groins on the downstream slope of the embankment to provide erosion protection at these locations. The riprap shall consist only of dense, hard, sound, and durable rock fragments free from organic or other deleterious matter to be obtained from a riprap source approved by the Engineer. The maximum size of the material acceptable shall not exceed l8 inches in the greatest dimension and the material may contain up to thirty percent (30$) material having a maximum dimension less than six inches (6") but greater than one-half inch (1/2"). Large concentrations of rela- tively uniformly sized material shall not be allowed. The riprap layer shall be placed to the thickness required on the drawing to its full thick- ness in one lift. It is necessary to obtain a well-graded mixture with the larger size rock well distributed and with the voids filled with the finer material provided that hand placement is not necessary except to prevent the formation of large areas of uniformly sized material. No special com- paction or sluicing will be required for this zone. £-7. Sand Drain Zone; Drain zone sand shall be obtained from a source approved by the Engineer. This material shall be selected to meet the gradation requirements for this zone as shown on the drawings. The function of the sand drain zone is to provide a pervious zone within the dam to allow the water which seeps through the embankment to drain from the dam embank- ment internally and thus prevent saturation of the embankment downstream from the drain zone. The drain zone sand shall be placed in a blanket on the abutments downstream from the vertical portion of the drain zone as shown on the drawings in order to provide for the collection of any seepage which comes through the abutment and thus prevent saturation of the down- stream slope of the embankment from this source. This material shall meet the specified gradation requirements because the sand drain zone must be fine-grained enough to prevent the migration of fine-grained particles from the impervious core and foundation materials immediately upstream from the drain zone, and yet it must be coarse and clean enough to allow for the drainage of all water which seeps into the drain zone. This zone must drain in such a manner as to prevent the build-up of a high static head within the drain system due to the steady seepage. This material shall be com- pacted by a crawler-type tractor or approved vibratory compactor to the same density requirements for the other zones as required elsewhere herein. Special care shall be taken to place the drain zone material to at least the minimum lines and grades shown on the drawings or as required by the Engineer, and to prevent contamination of the zone with material from other zones. In order to protect the vertical portion of this zone from contami- nation during construction, the top of this zone shall be kept at an eleva- tion of approximately one foot above the level of the adjacent finer-grained materials and the zone may be crossed by equipment at only two designated and specially marked and controlled locations. These crossings shall be specially protected and all contaminated material shall be excavated and re- placed with acceptable material prior to placing the subsequent lifts. The horizontal portion of this drain zone shall be placed as a unit in the stream bed with care being taken to prevent contamination by equipment hauling other materials. The same care shall be taken while constructing Carlsbad MWD BEWO 52'IID Detail Specifications - 13 the sand blanket up the sides of the abutments as shown on the drawings. The sand zone shall be compacted in a saturated condition to prevent bulking. E-8. Gravel Drain Zone; Drain zone gravel shall be obtained from a source approved by the Engineer. This material shall be selected to meet the gradation requirements for this zone as shown on the drawings. The function of the gravel drain zone is to provide a very pervious zone or conduit within the sand drain zone in order to facilitate the drainage of seep water from the sand drain zone to the downstream toe of the dam. This drain zone shall be placed in a single lift to the dimensions shown on the drawings and as required by the Engineer as a zone entirely surrounded except on the down- stream end by sand drain zone material which shall be at least 1-1/2 feet thick below and above the gravel zone. Placement of the first layer of sand above this zone shall be done in such a manner as to minimize the direct intrusion of the sand into the gravel layer by the mechanical action of placing the sand. The method to be used in this operation shall be approved by the Engineer. The gravel drain material shall be compacted by a crawler- type tractor or approved vibratory compactor with a minimum of four passes by the approved equipment. Special care shall be taken to prevent contami- nation of the gravel drain zone material which shall be placed to the re- quired dimensions in one lift, three feet thick. No moisture control will be required in this zone. E-9. Impervious Core: The impervious core material shall be obtained from the borrow area sources designated elsewhere in this Specification and shown on the drawings. This material shall be selected to meet the gradation re- quirements for this zone as shown on the drawings. The function of this zone is to provide a relatively impervious membrane to inhibit the seepage of reservoir water through the embankment. The finest-grained material avail- able from the specified borrow sources shall be used to the lines, grades, and slopes shown on the drawings and as required by the Engineer and special care shall be taken to prevent the inclusion of more pervious materials or the accidental lowering of the compaction requirements in this zone to pre- vent the creation of a seepage path through this zone. This zone shall be compacted by not less than eight passes with a sheepsfoot roller to at least the minimum density specified above. Portions of the fill not accessible to the roller shall be placed in layers not to exceed four inches (4U) in uncompacted thickness and shall be compacted with power tampers to the den- sity required above. Rolling adjacent to the abutments will be accomplished with heavy pneumatic tired equipment in lieu of hand compaction where prac- tical. The moisture content shall be as uniform as practical throughout each layer and shall be three percent (3$) of optimum moisture content, as defined above. The first three feet of material to be placed in the cutoff trench shall be compacted at, or within three percent (~5%) above optimum moisture content, in order to provide a relatively plastic layer immediately above the in-place materials especially in those areas where rock is exposed in the cutoff trench bottom. In the event it is deemed necessary to blanket any part of the reservoir, such lining shall be constructed to the same re- quirements as for the impervious core except the foundation preparation shall be as for the shell foundation. E-10. Upstream and Downstream Shell Zones; The upstream and downstream shell zone material shall be obtained from within the reservoir area as specified elsewhere in these Specifications, or elsewhere within the reser- voir area as shown on the drawings. That portion of the material available Carlsbad MWD BEWO 52^10 Detail Specifications - I1*- which meets the gradation limits shown on the drawings could be reserved for the upstream portion of the shell zone, and all other material acceptable to the Engineer which may be obtained from the borrow areas designated for this material shall be placed in the downstream shell zones without specific gradation requirements. The only requirement for the downstream material being a satisfactory strength to meet the design assumptions. Material con- taining organic matter that has been stripped from the borrow areas or from the dam embankment area may be placed in this zone as shown on the drawing on the downstream edge of the embankment in a layer not to exceed two feet in thickness, in order to provide a suitable material in which to plant the downstream slope protection material provided for elsewhere in these speci- fications. This layer of organic material shall only be compacted to about 80 percent of the maximum laboratory density specified elsewhere herein. The upstream shell zone is divided into two separate zones; the upstream portion of which may be used for the placement of rocks and boulders from the reservoir area if so elected by the Contractor. If these materials are placed in this zone, they must be compacted as required by the Engineer, and protected by a transition zone of gravel or rock fragments as required on the drawings and by the Engineer. Where the large size rocks are few in number, they shall be placed at the downstream edge of the dam to prevent interfer- ence with compacting the zone. The shell zone materials shall be placed to the lines, grades and slopes shown on the drawings and as required by the Engineer, and care shall be taken to obtain the required compaction in this zone because its purpose is to provide stability for the entire structure. This zone shall be compacted by not less than six passes with an approved type of pneumatic or sheepsfoot roller to at least the minimum density speci- fied elsewhere herein. Where cobbles and boulder material is placed in this zone, the thickness of the layer may be equal to the maximum dimension of the material being placed; however, special care must be taken to prevent nesting of boulders and cobbles and to provide a well-compacted fill that will develop the strength assumed by the design. All soil-type materials shall be placed at a moisture content of between one percent (1$) dry of optimum and two percent (2$) wet of optimum moisture content as defined else- where herein. E-ll. Measurement and Payment: Measurement for payment will be made on the basis of the volume of the embankment included between the neat lines shown on the Plans or as staked in the field. The lower limit for payment shall be the same as the lower limits for payment for stripping excavation and cutoff trench excavation. Measurement for each pay unit type of fill material within the embankment will be the volume between the above-described limit lines and the zone lines or dimensions shown on the drawings, or as required by the Engineer during the progress of the work. The price paid per cubic yard at the applicable zone unit price for embankment fill shall include full compensation for furnishing all labor, materials, tools and equipment and doing all the work involved in constructing the embankment complete in place as herein specified or as required by the Engineer. Par- tial payment will be made on the basis of percentage of completion as es- tablished by the Engineer for each pay period. F. Piezometer Trench Backfill: F-l. General Requirements: The piezometer trenches dug by others shall be backfilled with the materials to the density required for the appropriate Carlsbad MWD BEWO 5241D Detail Specifications - 15 zone by use of a "motor patrol" or "grader" or other approved method. The dirt shall be pushed Into the trench in approximately six inch (6") lifts, and compacted by a wheel of the grader running in the trench as required by the Engineer. Backfill in the sand drain zone downstream of the dam axis shall be limited to care in placement of top lifts of sand over exposed piezometer tubes. Care shall be taken to prevent damage to the piezometer tubes during the backfill and compaction operations. F-2. Measurement and Payment; Measurement shall be by the lineal foot of trench backfilled, and payment shall be at the appropriate unit price shown on the bid sheet. The unit price paid for backfilling and compacting the piezometer trenches shall be full compensation for furnishing all labor, materials, tools, and equipment for completing this work as required by the Engineer. Partial payments will be made on the basis of the work done for each pay period. G. Pressure Grouting: G-l. Grouting under pressure may be required in the foundation of the dam where hard rock is encountered in the cutoff trench, or elsewhere as directed by the Engineer. The pressure grout curtain, if required, will be provided by forcing grout into holes drilled into the foundation or abutments as re- quired. The extent of such drilling and grouting shall be as ordered by the Engineer. The actual number, spacing, direction and depth of each hole to be drilled, the pressure to be used for injecting grout and the quantity and mixture of grout to be pumped will depend upon the conditions developed as the work progresses, and the Contractor shall be entitled to no additional compensation above payment at the unit prices named in the bidding sheet for drilling grout holes in stage and for placing grout, regardless of the variations in the quantities of work performed. G-2. Drilling Grout Holes: Wherever ordered by the Engineer, grout holes shall be drilled in the rock foundations. Pipes for grout connections Shall be furnished by the Contractor and placed as directed. The loca- tion, direction, order of drilling, and the depth of each hole shall be as directed. The use of percussion-type drills for drilling grout holes will not be permitted. Rotary-type drills shall be used without "rod dope", grease, or other lubricant on the drill rods. The minimum diameter of each grout hole drilled shall be not less than that produced by Commercial Standard EX-size Drill Bit (bit diameter approximately 1-1/2 inches). It is anticipated that the maximum depth of grout holes required for this dam will be 30 feet. The general sequence of drilling shall be initially to drill holes 20 feet apart and then after testing and grouting these holes, to drill such additional and intervening holes as may be necessary in the opinion of the Engineer to attain the desired results. Each hole shall be tested for leakage with water under pressure for testing of drill holes. The Contractor shall furnish the water, pressure regulators, pressure gauges, piping, and fittings for the connections, to make the required con- nections, apply water under a pressure of about 25 pounds per square inch, and perform all work of making such tests. If water is lost through hole leakage during the drilling of any hole, the drilling operations shall be stopped and the hole cleaned out and grouted in accordance with the pro- visions below. After there is no more back pressure from such grouting, the Carlsbad MWD BEWO. 52U1D Detail Specifications - l6 grout in the hole shall then be removed, If possible by inserting a pipe to the bottom of the hole and introducing water under pressure, otherwise by means of re-drilling, if so ordered. After the grout is removed, the drilling operations shall be continued until further leakage is encountered or the required depth is reached. Each grout hole shall be protected from becoming clogged or obstructed by being suitably capped or otherwise pro- tected until the hole is grouted, and any hole which becomes obstructed be- fore being grouted shall be opened by and at the expense of the Contractor and in a manner satisfactory to the Engineer. Grout holes will be measured for payment after the holes are drilled, and only the length of the holes actually drilled at the direction of the Engineer will be considered in making the measurements. Payment for drilling grout holes as described herein will be made at the unit prices per lineal foot named on the bidding sheet, which unit prices shall include the cost of all labor, materials, plant and operations required in drilling and testing the holes and main- taining those to be grouted free from obstruction until grouted or until the work is completed. G-3- Furnishing and Installing Grout Pipe and Fittings; Metal pipe for grout connections shall be set in the embankment foundations at such points as may be designated by the Engineer. After the grouting operations have been completed, pointing over the ends of the pipe shall be done with a mortar mixed and applied as ordered, and finished off to the satisfaction of the Engineer. The sizes of all grout pipe shall be as necessary for the use of the equipment being used for this purpose. All grout pipes set in holes drilled in the rock shall be carefully caulked in place to secure a watertight joint without clogging the pipe or hole. All grout piping, to- gether with all plugs, valves, or other fittings necessary to make the re- quired connections for the grouting operation shall be furnished by the Contractor. Payment for furnishing and installing grout pipe and fittings in accordance with the requirements of this section will be made at the lump sum price for each connection named in the bidding sheet. G-4. Pressure Grouting: Each drilled grout hole shall have grout composed of cement and water forced into it under pressure. Pressures as high as practicable but which, as determined by trial, are safe against rock or concrete displacement, shall be used in the grouting. The proportions of cement and water used in mixing the grout, the time of grouting, the pressure used for grouting, and all other details of the grouting operation shall be as determined by the Engineer. Different grouting pressures will be required for grouting different sections of most of the grout holes. Where such sectional grouting of a hole is required, the grouting shall be performed by attaching a packer to the end of the grout supply pipe, lowering the grout supply pipe into the hole to the top of the lowest section to be grouted, grouting at the required pressure, allowing the packer to remain in place until there is no back pressure, withdrawing the grout supply pipe and packer to the top of the next higher section to be grouted at a different pressure, and thus successively grouting the hole in sections at the different specified grouting pressures until the entire hole has been completely grouted, except that the grouting of the top section of the hole may be per- formed without the use of a packer. The grout supply pipes and packers shall be furnished by the Contractor. The packers shall consist of expansible Carlsbad MWD BEWO 5241D Detail Specifications - 17 tubes or rings of rubber, leather or other suitable material attached to the end of the grout supply pipe. The packers shall be designated so that they can be expanded to seal the drill hole at the specified elevation and, when expanded, shall be capable of withstanding, without leakage, for a period of five minutes, water pressure equal to the maximum grout pres- sures to be used. The amount of packer grouting that will be required will depend upon the conditions disclosed by the drilling of the grout holes, and the Contractor shall be entitled to no additional allowances above the unit prices named in the bidding sheet for pressure grouting by reason of the amount of such work required. The apparatus for mixing and placing grout shall be of the type approved by the Engineer, and shall be capable of effectively mixing and storing the grout and forcing it into the holes or grout connections in a continuous, uninterrupted flow at any specified pressure up to a maximum of 90 pounds per square inch. The mixer shall be mechanically operated and provided with an adequate meter, reading in cubic feet to tenths of a cubic foot, for controlling the amount of mixing water used in the grout. In addition to the grout mixer, holdover mechanical agitator tanks shall be provided; all grout shall be pumped with a duplex piston-type pump, or other type pumping equipment approved by the Engineer. The grouting equipment shall be maintained in a manner satis- factory to the Engineer and so as to insure continuous and effective per- formance during any grouting operation. The arrangement of the grouting equipment shall be such as to provide a supply line and return line from the grout pump to the grout hole. Provision shall be made to permit con- tinuous circulation and adequate control of grouting pressure, and flow of grout into the grout holes. The grouting of any holes shall be continued until the hole or grout connection takes grout at the rate of less than one cubic foot of grout mixture in twenty minutes for pressures of fifty pounds per square inch or less. G-5. Measurement and Payment; Measurement for payment of pressure grouting will be made on the basis of the number of cubic feet of cement actually forced into the holes or grout connections at the direction of the Engineer, or required to fill permanent pipes. One sack of bulk cement will be taken as 9^ pounds, and will be considered to be one cubic foot in volume. Pay- ment for pressure grouting will be made at the unit price per cubic foot bid therefor, which unit price shall include the cost of furnishing all labor, materials, tools, and equipment required for the grouting, including the plugging or caulking of leaks, the use of packers, the washing of cre- vices, seams, or faults with water and air, and testing of grout holes with water and air, and testing of grout holes with water. No payment will be made for grout or the cement used in grout that is lost due to improper anchorage of grout pipes or connections, or that is rejected by the Engineer on account of improper mixing, or that is lost by leakage due to the failure of the Contractor to caulk surface leaks when directed by the Engineer. All pressure grouting operations shall be performed in th'- presence of the Engineer. H. Spillway Excavation; H-l. General Requirements: Spillway excavation shall consist of removing all material of whatever nature to the lines and grades shown on the Plans. Carlsbad MWD BEWO 5241D Detail Specifications - 18 H-2. Disposal: All excavated material not suitable for Dam Embankments shall be disposed of in the canyon adjacent to and downstream from the spillway. The spoil area thus created shall be dressed smooth and left in a neat and free draining condition. H-3. Measurement and Payment; Measurement for payment for Spillway Ex- cavation will be made to the neat lines shown on the plans and/or staked in the field. The price paid per cubic yard for Spillway Excavation shall include full compensation for furnishing all labor, materials, tools and equipment and doing all the work involved in making the excavation and disposing of the excavated material as herein specified. SECTION V - INLET-OUTLET PIPE A. General: Inlet-outlet pipe and fittings shall be furnished and installed in accordance with the Standard Specifications for Earthwork and the Standard Specifications for Steel Pipe Water Mains and Fittings, with the following special requirements: B. Special Requirements: B-l. Excavation and Backfill; The minimum width of trench for that por- tion of the pipe which is not to be encased in concrete shall be equal to the outside diameter plus sixteen inches (l6"). Backfill within dam em- bankment zones shall conform to material and compaction requirements for the particular zone intercepted. B-2. Materials and Fabrication; The steel cylinder of the pipe between the downstream toe of the dam embankment and the inlet structure shall be 5/l6 inches in thickness with all joints welded. B-3. Materials and Fabrication; After the pipe has been laid, it shall be subjected to a hydrostatic pressure test of 150 pounds per square inch in the manner specified in the Standard Specifications. B-U. Measurement and Payment: The quantity of inlet-outlet pipe and fit- tings for which payment will be made, shall be the length actually instal- led by the Contractor complete in place as herein specified. Measurement will be made along the center line of the pipe from pipe end to valve flange. The price paid per linear foot for inlet-outlet pipe and fittings shall include full compensation for furnishing all labor, materials, tools and equipment and performing all the work involved in furnishing and instal- ling the pipe complete in place as herein specified. SECTION VI - GATE VALVES Gate valves shall be furnished and installed in accordance with the Stand- ard Specifications for Gate Valves. SECTION VII - BUTTERFLY VALVES A. General; The Contractor shall furnish and install butterfly valves as shown on the Plans and herein specified. Carlsbad MWD BEWO 5241D Detail Specifications - 19 B. Material and Workmanship; B-l. Butterfly Valves; Butterfly valves shall be tight-closing with rubber seats, and shall be either flanged or water-type as shown. Shafts shall be of one piece A.S.T.M. A2j6, Type 3l6, stainless steel. Disc shall rotate 90 degrees between the fully open and fully closed positions and shall be of IrMi-Resistlr alloy cast iron. The type of operators to be fur- nished shall be as noted or shown, and shall be adequate to seat and unseat the valve under the most adverse conditions noted. Butterfly valves shall be as manufactured by the Henry Pratt Company, or approved equal. B-l.l. Flanged Valves; Flanged butterfly valves shall conform to the requirements for the appropriate class of the AWWA Standard 05 04. B-l.2. Wafer Valves: Wafer-type valves shall have close grain iron bodies complying with A.S.T.M. A48, Class 40. Valves shall be "Monoflange Mark II" as manufactured by the Henry Pratt Company, or approved equal. B-l.3. Manual Operators; Manual operators shall have AWWA 2-inch square operating nuts and shall require at least JO turns of the tee wrench to rotate the disc 90 degrees. Operators shall be the totally enclosed self-locking gear or screw type with adjustable stops factory set to limit disc travel. Operator cases shall be expressly designed for installation and operation in a buried location and shall be fully gasketed, sealed, and factory grease packed. The minimum torque rat- ing for a buried service operator shall be 8,000 inch pounds. B-2. Earthwork; Earthwork shall be done in accordance with the Standard Specifications for Earthwork. B-3. Bolts and Gaskets; Bolts and gaskets shall conform to the applicable provisions of the Standard Specifications for Gate Valves. B-4. Valve Wells: Valve wells shall conform to the applicable provisions of the Standard Specifications for Gate Valves. C. Payment; The unit price paid for butterfly valves shall include full com- pensation for furnishing all labor, materials, tools and equipment and doing all the work involved in furnishing and installing plug valves as herein speci- fied. SECTION VIII - PLUG VALVES A. General; The Contractor shall furnish and install plug valves as shown on the Plans and herein specified. B. Material and Workmanship; B-l. Plug Valves: Plug valves shall be pressure lubricated, semi-steel, venturi pattern type, flanged and spur gear operated as manufactured by Rockwell Manufacturing Co. (Rockwell-Nordstrom) Fig. 1167 or approved equal. Valves shall be complete with water tight gear housings and Carlsbad MWD BEWO 5241D Detail Specifications - 20 extensions with road boxes. B-2. Earthwork; Earthwork shall be done in accordance with the Standard Specifications for Earthwork. B-3. Bolts and Gaskets; Bolts and gaskets shall conform to the applicable provisions of the Standard Specifications for Gate Valves. B-4. Lubrication; Subsequent to installation, the valves shall be filled with lubricant as recommended by the manufacturer. C. Payment; The unit price paid for plug valves shall include full compen- sation for furnishing all labor, materials, tools and equipment and doing all of the work involved in furnishing and installing plug valves as herein speci- fied. SECTION IX - FLOW METER A. General; The 20-inch flow meter shall be B-l-P Industries Plastic-Insert Ball Plow Tube, Model DPT-P1 No. 20 C, or approved equal. The flow tube shall have a rated maximum capacity of 9,800 gpm and a minimum rated capacity of 980 gpm. The pressure connections shall be fitted with 125 psi companion bronze nipples and bronze cocks, Crane No. 250, or equal. B. Payment; The unit price paid for plug valves shall include full compen- sation for furnishing all labor, materials, tools and equipment and doing all of the work involved in furnishing and installing flow meters as herein speci- fied. SECTION X - MISCELLANEOUS STRUCTURES A. General; Miscellaneous reservoir structures.shall be constructed as shown on the Plans and as herein specified. A-l. Scope of Work; The work to be done consists of the inlet-outlet structure, the trash rack assembly, emergency plug assembly, pipe con- crete encasement, the spillway bridge and the spillway cut-off walls. B. Materials and Workmanship; B-l. Earthwork; Earthwork for miscellaneous structures shall be done in accordance with the Standard Specifications for Earthwork, subject to addi- tional applicable requirements specified in Section IV, Dam Construction. B-2. Concrete Construction; Concrete construction shall conform to the provisions of the Standard Specifications for Portland Cement Concrete. B-3. Trash Rack Assembly; All portions of the trash rack assembly shall be hot dipped galvanized in accordance with the requirements of A.S.T.M. Designation A-123 and A-153. B-4. Emergency Plug Assembly; The emergency plug assembly shall consist of the emergency plug and appurtenant fittings, the control cable with control anchors and the hand hoist and anchor block. The emergency plug Carlsbad MWD BEWO 52*UD Detail Specifications - 21 shall be fabricated as indicated on the plans. It shall be weighted so that it is 50 pounds less than buoyant. Prior to galvanizing the plug chamber shall be tested for leaks with air pressure of 125 psi. The rubber seat gasket shall be secured with epoxy type cement. The con- trol cable shall be Robling "Aircord" stainless steel wire rope, or equal. The hand hoist shall be Union No. 11^-A or equal, 1,000 pound capacity safety winds with worm gear, all steel, except wire rope and hand hoist shall be hot dipped galvanized In accordance with the requirements of A.S.T.M. Designation A-123 and A-153. The hand hoist shall be painted in accordance with the requirements of the Standard Specification for Painting. B-5. Spillway Timber Bridge; The spillway timber bridge construction shall conform to the applicable requirements of Sections 57 and 58 of the Standard Specifications of the California Division of Highways dated Jan- uary, I960, and the following provisions: All stringers, blocking and sills shall be either redwood of the dense structural grade or salt treated Douglas fir of the 1700 pound stress grade. All other lumber or timber shall be Douglas fir of No. 1 grade or better. All lumber or timber shall be treated with preservative. Surface treat- ment of timber will be as specified in Section 57-3.03 of said Highways Specifications. C. Payment; The lump sum price paid for miscellaneous reservoir structures shall include full compensation for furnishing all labor, materials, tools and equipment and doing all work involved in constructing the miscellaneous reser- voir structures complete in place as herein specified. SECTION XI - RESERVOIR ACCESS ROAD A. General; The reservoir access road shall be constructed as shown on the Plans and herein specified. B. Earthwork; The earthwork for the construction of the access road shall be performed in accordance with applicable sections of the Standard Specifications for Earthwork. C. Culverts: Corrugated metal pipe culverts shall be furnished and installed in accordance with the applicable provisions of Section 66 of the Standard Specifications of the California Division of Highways, dated January, 1960. D. Payment; The lump sum price paid for the reservoir access road shall in- clude full 'compensation for furnishing all labor, materials, tools and equip- ment and doing all the work involved in constructing the access road complete in place as herein specified. Carlsbad MWD BEWO 52^10 Detail Specifications - 22 STANDARD SPECIFICATIONS FOR CONCRETE CYLINDER PIPE WATER MAIN AND FITTINGS A- General: Concrete cylinder pipe water main and fittings shall be installed at the locations and to the lines and grades shown on the Plans and as herein specified. B. Materials and Fabrication: Materials and fabrication shall conform to the requirements of Federal Specifications for Pipe; Pressure, Reinforced Concrete, Pretensioned Reinforcement (Steel Cylinder Type) SS-P-J581, September lU, 1955- The pipe to be installed at the various locations is identified on the Plans by symbol indicating type of pipe, inside diameter of pipe and pressure class. For example, pipe identified as C-lV-150 would be the designation for concrete cylinder pipe, IV inside diameter pipe, 150 psl working pressure. The inside diameter of the pipe shall be measured to the internal face of the cement mortar lining. C. Installation: C-l. Excavation and Backfill: Excavation and backfill shall conform to the Standard Specifications for Earthwork. C-2. Installation Procedures and Workmanship: Prior to laying the pipe, the bottom of the trench shall be graded and prepared to provide a firm and uniform bearing throughout the entire length of each joint of pipe. Bell holes of ample dimension shall be dug in the bottom of the trench at the location of each joint to facilitate the joining. The trench shall have a flat or semicircular bottom conforming to the grade to which the pipe is to be laid. Pipe shall not be laid on earth mounds. When the pipe is being laid, the ends of the pipe shall be thoroughly cleaned and the gasket placed on the groove on the spigot ring and the spigot end of the pipe shall then be entered into the bell of the adjoining pipe and forced into position. The gasket and the inside surface of the bell shall be lubricated with a suitable vegetable soap compound which will facilitate the telescoping of the joints. Just prior to joining the two ends together, each end of the pipe shall be "buttered" with cement mortar in such a manner and in sufficient quantity to completely fill the space between the respective mortar linings. After the joining is completed, the pipe interior shall be swabbed to remove all excess mortar by drawing an approved type swab or squeegie through the pipe. For pipe 24-" and larger in diameter, the inside joints shall be hand painted. The outside joint recess shall be poured with grout after a felt sheet or other suitable material has first been placed around the pipe at the joints and held securely in place to prevent leakage while the joint is being poured. The grout shall consist of one part cement to one and one-half parts sand, and shall be mixed to the consistency of thick cream. The joints shall be poured and rodded from one side only until the grout shows on the other side. Care shall be used to fill the joint completely. Approximately two hours subsequent to the pouring of the joint, it shall be 3-10-61 Concrete Cylinder Pipe Standards - 1 rechecked and if any settlement, leakage or shrinkage has taken place, the joint shall be refilled with grout. C-3. Field-Welded Joints: Where welded joints are designated on the Plans, the pipe shall first be joined with rubber gaskets as above described. The outside recess between the bell and spigot shall then be caulked with wire to facilitate the welding. The weld shall be continuous for the full cir- cumference of the joint. C-4. Concrete Thrust Blocks: Concrete thrust blocks shall be placed as shown on the Plans and shall consist of Class "B" portland cement concrete containing not less than five (5) sacks of portland cement per cubic yard and shall conform to the applicable provisions of the California Division of Highways Standard Specifications dated January, 1960. Concrete blocks shall be placed between the undisturbed ground and the fitting to be anchored. Quantity of concrete and the area of bearing on the pipe and undisturbed soil shall be as shown on the Plans. The concrete shall be so placed, unless specifically shown otherwise on the Plans, that the pipe joints and fittings will be accessible to repairs. C-5. Preventing Foreign Matter from Entering the Pipe: At times when the pipe laying is not in progress, the open ends of the pipe shall be closed by a wooden plug or by other means. This provision shall apply during the noon hour as well as overnight. C-6. Testing: After the pipe has been laid, the pipeline and appurtenances shall be subjected to a hydrostatic pressure test of fifty pounds per square inch (50 psi) in excess of the designated working pressure for the class of pipe being tested. The maximum length of pipeline which may be tested at one time shall be 2,500 feet except for those portions of the pipeline where the distance between valves is greater than 2,500 feet. The duration of the pressure test shall be four (4) hours, and the test shall be conducted in the following manner: All air shall be expelled from the pipe. To accomplish this, if air valves, hydrants or other outlets are not available, taps shall be made at the high points in the pipeline to expel the air and these taps shall be tightly plugged afterward. The pressure in the pipeline shall then be pumped up to the specified test pressure. When the test pressure has been reached, the pumping shall be discontinued until the pressure in the line has dropped 25 psi, at which time the pressure shall again be pumped up to the specified test pressure. This procedure shall be repeated until four (4) hours have elapsed from the time the specified test pressure was first applied. At the end of the four (4) hour period, the pressure shall be pumped up to the test pressure for the last time. The leakage shall be considered as the total amount of water pumped into the pipeline during the four (4) hour period including the amount required in reaching the test pressure for the final time. Leakage shall not exceed the rate of twenty (20) gallons per inch of diameter per mile of pipe per twenty- four (2U) hours. Any noticeable leak shall be stopped and all defective pipe, fittings, valves, and other accessories discovered in consequence of the test shall be removed Concrete Cylinder Pipe Standards - 2 and replaced by the Contractor with sound material and the test shall be repeated until the total leakage during a test of four (4) hours duration does not exceed the rate specified above. All concrete anchor blocks shall be allowed to cure for at least five (5) days prior to testing and all mortared joints shall be allowed to cure for not less than three (3) days prior to testing. C-7- Sterilization: Subsequent to the pressure tests and prior to accep- tance of the work, the entire pipeline, including all valves, fittings and other accessories shall be sterilized in accordance with American Water Works Association "Standard Procedure for Disinfecting Water Mains, AWWA C 601-54". Treated water shall be retained in the pipes for at least twenty-four (24) hours and a residule at not less than ten (10) ppm shall be produced in all parts of the line after the twenty-four (24) hour period has elapsed. During the sterilization process, all valves and other accessories shall be operated. After chlorination, the water shall be flushed from the line at its extremities until the replacement water tests are equal chemically and bacteriologically to those of the permanent source of supply. The water required for sterilization and flushing shall be furnished by and at the expense of the Contractor. D. Measurement and Payment: D-l. Measurement for payment for concrete cylinder pipe and fittings will be made along the center line of the pipe from pipe end to valve flange of to center line of intersecting pipe, as the case may be, as actually constructed. D-2. Payment: The price paid per linear foot for concrete cylinder pipe shall include full compensation for furnishing all labor, materials, tools and equipment and doing all the work involved in furnishing and installing concrete cylinder pipe and fittings, complete in place as herein specified; except that payment for all concrete cylinder pipe which is shown on the contract drawings as incorporated in or part of an assembly or station for which unit or lump sum prices are provided, shall be considered to be in- cluded in the contract price for such assembly or station, and no additional allowance will be maded therefor. Concrete Cylinder Pipe Standards - 3 STANDARD SPECIFICATIONS FOR EARTHWORK A. General Conditions: A-l. Earthwork Defined: Earthwork shall consist of performing all operations to excavate and backfill for the installation of pipelines and appurtenances and for the construction of foundations, structures, roads, reservoirs, and pumping stations, all as shown on the Plans and herein specified. A-2. Earthwork in County and State Rights of Way: Earthwork within the rights of way of the State Division of Highways and the County Road De- partment shall be done in accordance with requirements and provisions of the permits issued by those agencies for the construction within their respective rights of way. A-3. Scope of Work: The Contractor shall provide all labor, materials, tools and equipment necessary to complete all of the earthwork as shown on the Plans and herein specified. Excavation shall include the removal of water and all material of whatever nature. Excavation shall also in- clude clearing of the site. All water used in compacting backfill shall be furnished by and at the expense of the Contractor. A-4-. Relative Compaction: Whenever a relative compaction requirement value is specified, the optimum moisture content and density shall be determined in accordance with revised AASHO Test No. T-99-^9> (modified - three layers - 25 blows each layer - ten pound hammer - 18 inch drop.) A-5- jiafety Precautions: All excavations shall be protected and supported as required for safety and in the manner set forth on the rules, orders and regulations prescribed by the Industrial Accident Commission of the State of California. Barriers shall be placed at each end of all excavations and at such places as may be necessary along excavations to prevent acci- dents. Lights shall also be placed along excavations from sunset each day to sunrise of the next day until such excavation is entirely refilled. A-6. Obstructions: The Contractor's attention is directed to the possible existence of pipe and other underground improvements which may or may not be shown on the Plans. All reasonable precautions shall be taken to pre- serve and protect any such improvements whether shown on the Plans or not. Where it is necessary to remove and replace or to relocate such improve- ments in order to prosecute the work, they shall be removed, maintained, and permanently replaced by the Contractor at his expense. B. Materials and Workmanship: B-l. Trench Excavation and Backfill: B-l.l. Trench Excavation: Excavation for pipelines, fittings, valves, Water System Earthwork Standards - 1 and appurtenances shall be open trench to the depth and in the direction necessary for the proper installation of the same, as shown on the Plans. B-l.ll Trench Width: The minimum width of unsheeted trenches shall conform to the following tabulation: Nominal Inside Pipe Diameter Trench Width 4" through 12" Outside diameter plus 12" 14" through 24" Outside diameter plus l6" B-1.12. Correction of Faulty Grades: Should the excavation for the pipeline be carried below grade without instructions from the District's Representative, it shall be refilled to proper grade with sand, gravel, or loose earth free from stones, clods, etc., which shall be furnished and tamped firm and unyielding at the expense of the Contractor. B-1.13. Foundation in Good Soil: The trench shall have a flat or semi-circular bottom conforming to the grade to which the pipe is to be laid. The bottom of the trench for steel pipe and concrete cylinder pipe shall be graded and prepared to provide a firm and uniform bearing throughout the entire length of each joint of pipe. Steel pipe and concrete cyl- inder pipe SHALL NOT be laid on earth mounds. Asbestos- cement pipe shall be laid on earth mounds located at one- fifth (1/5) of the pipe length from each end. B-1.14-. Foundations in Poor Soil: All soft, spongy, or un- stable material in the bottom of the trench shall be removed to a depth as determined in the field by the District's Rep- resentative. Payment for the removal of material to a depth of two feet below the bottom of pipe grade shall be considered to be included in the Contract prices paid for the various items of work and no additional allowance will be made there- for. The removal of material from depths greater than two feet below the bottom of the pipe grade will be paid for as extra work. B-1.15. Foundations in Rock: Where rock is encountered, it shall be removed below grade and the trench backfilled with sand, gravel, or loose earth free from stones, clods, etc., which shall be tamped or otherwise compacted to provide a cushion with a thickness under the pipe of not less than one-half inch (1/2") per inch of nominal diameter of pipe to be installed with a minimum allowable thickness of six inches (6"). B-1.16. Shoring, Sheeting and Bracing of Trenches; Whenever it is necessary to prevent caving, trenches shall be adequately Water System Earthwork Standards - 2 sheeted and braced. Where sheeting and bracing are used, trench widths shall be increased accordingly. Sheeting shall remain in place until backfill in the "pipe zone" has been completed. B-1.2 Trench Backfill: All trenches shall be backfilled after pipe, fittings, valves and appurtenances have been installed. B-1.21. Procedure at Pipe Zone: Selected backfill material consisting of sand or loose earth free from stones, clods, or other deleterious material shall be placed in the trench simultaneously on each side of the pipe for the full width of the trench in layers of about six inches (6rr) in depth. Each layer shall be thoroughly compacted by tamping or, where the material is sufficiently granular in nature, as determined by the District's Representative, by water settling. Particular attention is to be given to the under- side of the pipe and fittings to provide a firm support along the full length of the pipe. Care shall be exercised in back- filling to avoid damage to the pipe covering. The pipe zone shall be considered to extend six inches (6") above the top of steel pipe and concrete cylinder pipe, and twelve inches (12") above the top of asbestos cement pipe. B-1.22. Procedure Above Pipe Zone: From the top of the se- lected backfill to ground surface, the material for backfill may contain stones ranging in size up to eight inches (8") in diameter, in quantity^ not exceeding forty percent (U0$) of the volume when said coarse materials are well distributed throughout the finer material and the specified compaction can be attained. B-1.23. Compaction: Except as otherwise noted on the Plans or in the Detail Specifications, all backfill above the pipe zone shall be thoroughly compacted to a relative minimum den- sity of ninety percent (90$) by tamping or water settling. The Contractor's attention is directed to Paragraph A-2., Earthwork, in County and State rights of way. B-l.23.1 Tamping Method: When the tamping method is used, properly moistened fill material in uniform layers shall be tamped until compacted to the required relative minimum density. At the time of compaction, the moisture content of the backfill material shall be the optimum or such that the required compaction will be obtained. Heavy duty compacting equipment having an overall weight in excess of 125 pounds shall not be used until backfill has been completed to a depth of two feet (2') over top of pipe. B-1.23.2 Water Settling Method: When the water settling method is used, the trench shall be backfilled Water System Earthwork Standards - 3 in uniform layers not exceeding eighteen (18") inches in thickness. Each layer shall be diked across at suitable intervals and the trench be- tween the dikes shall be kept filled with water during and after deposit of backfill material un- til sufficient time has elapsed for the layer to become saturated. This method shall not be used when in the opinion of the District's Representative the backfill material is not sufficiently granular in nature to consolidate properly by such methods. B-1.3. Excess Excavated Material: The Contractor shall make the necessary arrangements for and shall remove and dispose of all ex- cess excavated material. In open terrain, surplus material may be disposed of within the right of way by spreading, provided that such surplus material does not contain any rocks or lumps which cannot be readily covered by spreading. B-1.4. Imported Backfill Material: Whenever the excavated material is not suitable for backfill, the Contractor shall arrange for and furnish suitable imported backfill material at his expense. He shall dispose of the excess trench excavation as specified in the preceding paragraph. The backfilling shall be done in accordance with the methods described above. B-1.5. Final Clean-Up: After backfill has been completed, the right of way shall be dressed smooth and left in a neat and presentable con- dition. On slopes where in the opinion of the District's Representative rainfall runoff would create an erosion problem, the Contractor shall excavate at approximately one hundred foot intervals V-type interception ditches to collect and carry runoff to the low side of the right of way. The interception ditches shall be approximately one foot deep and shall be skewed approximately forty-five degrees (45°) with the centerline , of the right of way. B-2. Structure Excavation and Backfill: B-2.1. Structure Excavation: Structure excavation shall include the removal of all material of whatever nature necessary for the construction of structures and foundations in accordance with the Plans and Specifications. It shall include the furnishing of all labor, materials, tools, and equipment and doing all the work in the installation and subsequent removal of all shoring, sheeting, bracing, and other details which may be necessary. B-2.2. Structure Backfill: After structures and foundations are in place7 backfill shall be placed to the original ground line or to the limits designated on the Plans. No material shall be de- posited against the walls of concrete structures for a period of fourteen (14) days following pouring of the concrete. B-2.21. Compaction: Backfill shall be placed in horizontal Water System Earthwork Standards - 4 layers not exceeding six inches (6") in depth and shall be moistened and thoroughly tamped, rolled, or otherwise com- pacted to a minimum relative density of ninety percent Water settling will not be permitted. B-2.22. Material: Backfill material shall consist of sand of loose earth, free from stones, clods, or other deleterious material. When material from the excavation is unsuitable for use in backfill, it shall be disposed of as specified in Paragraph B-1.3 above and suitable material shall be arranged for and furnished by the Contractor at his expense. B-2.3. Surplus Excavated Material: Surplus material from the ex- cavation remaining after backfilling shall be disposed of as speci- fied in Paragraph B-1.3 above. B-3. Excavation and Embankment for Roads, Reservoir Sites, Chlorination Sites, Pumping Station Sites, and Other Structure Sites: B-3.1. Excavation: Excavation shall include the performance of all necessary operations to clear the right of way or site and to excavate all materials of whatever nature necessary for the construction of reservoir sites, Chlorination station sites, pumping station sites, structure sites, parking areas, ditches/ and roadways to the line and grades shown on the Plans or required by these Specifications. B-3.11. Rock Excavation: In solid rock excavation or other material which cannot readily 'be plowed, the material shall be loosened and broken up so that any ribs or solid projec- tions will be at least six inches (6") below finish grade. B-3.12. Water Channels: Water channels and ditches shall be excavated at the locations shown on the Plans and/or as staked in the field. B-3.2. Embankment: It is the intent of the Plans and Specifications that all excavated material be placed in embankments or disposal areas designated on the Plans. Finished contours and grades shown on the Plans are subject to the modification of the District's Rep- resentative in the field if necessary to accomplish this balance between excavation and embankment. B-3.21. Original Ground Preparation: Areas over which em- bankments are to be constructed shall first be cleared of all deleterious materials, plowed, scarified, or otherwise broken up to allow new fill material to unite with the old earth. B-3.22. Compaction: Except as otherwise noted on the Plans or in the Detail Specifications all embankments shall be carried up in layers not exceeding eight inches (8") in thick- ness and shall be compacted to a minimum relative density of ninety percent (90$). Water System Earthwork Standards - 5 B-3.3 Slopes; Excavations and embankments shall be finished with all slopes in conformity with the lines and grades shown on the Plans and/or staked in the field. Fill slopes shall be com- pacted by means of sheepfoot rollers or other suitable equipment approved by the District's Representative. Slope compacting opera- tions shall be continued until the slopes are stable and there is no appreciable amount of loose soil on the slopes. B-3.1*-. Finish Grade: After the roadbed or site has been constructed to the line and grade as herein specified, the entire area shall be watered, shaped, and rolled to provide a finish surface or sub-grade for base materials that is true to grade and cross-section and free from bumps and irregularities. C. Payment; Payment for earthwork and for conforming to all of the provisions of these Specifications shall be considered to be included in the contract unit prices or lump sum price paid for the various items of work and no additional allowance will be made therefor. Water System Earthwork Standards - 6 STANDARD SPECIFICATIONS FOR GATE VALVES A. General: Gate valves, together with all appurtenances, shall be furnished and Installed by the Contractor at the locations shown on the Plans and/or es- tablished in the field by the District's Representative. B. Materials and Workmanship; B-l. Gate Valves: All gate valves shall be of the same size as the mains in which they are installed unless otherwise noted on the Plans. Ends may be flanged or rubber ring type hub. Where hub x flange valves are desig- nated on the Plans, the Contractor may at his option install flange valves with hub x flange adaptors, Smith Blair or approved equal. B-l.l. Three Inch (-3") and Smaller Gate Valves: The body and all interior working parts, except the stem, shall be constructed of A.S.T.M. B-62 (85-5-5-5) bronze. The stems shall be of bronze and have the additional strength requirements as specified below: Minimum Tensile Strength 60,000 psi Minimum Yield Strength 30,000 psi Minimum Percent Elongation in 2" 10 percent B-l.2. Pour Inches (tl") and Larger Gate Valves: Valves shall be iron body, bronze mounted, double disc, parallel seat with non-rising stem and shall open by turning counter-clockwise. Bronze for interior parts of valves shall be A.S.T.M. B-62 (85-5-5-5) bronze and shall contain not more than two percent (2%) aluminum nor more than seven percent (7$) zinc. Stems shall meet the strength requirements speci- fied below: Minimum Tensile Strength 60,000 psi Minimum Yield Strength 30,000 psi Minimum Percent Elongation in 2" 10 percent The following types of valves shall be used: Rensselaer List 13-A Rich Series 200 and 215 Iowa List 1U B-2. Gate Wells: Gate wells shall conform in every respect to the details as shown on the Plans. The steel pipe shall be coated with the best grade of air-blown California asphalt pipe dip. Gate well covers shall be cast iron Alhambra Foundry Company Series A-29600, or approved equal, and shall be marked "WATER". The top side of the cover shall be painted with one (1) coat of Dutch Boy Nalco Synthetic Finish Paint No. 20-53, or approved equal. B-3• Bolts for flanged-end gate valves shall be standard square head machine bolts, conforming to A.S.T.M. Specification A-IOJ. Nuts shall be hexagonal, cold pressed, semifinished steel, manufactured in accordance with A.S.T.M. Specification A-19U, Class "0". All bolt threads shall be lubricated with 3-10-61 Gate Valve Standards - 1 graphite and oil. All bolts installed underground shall be thoroughly coated with asphalt after installation. B-U. Gaskets for flanged-end gate valves shall be full face 1/16" "Granite" with bolt holes prepunched, or approved equal. B-5. Rubber Rings: Coupling rubber rings for use with gate valves having rubber ring type hub ends shall be manufactured of a molded and vulcanized rubber compound and shall conform to the dimensions and tolerances given in Section B-2.22 of the Asbestos-Cement Pipe Standard Specifications. B-6. Marker Posts: When called for on the Plans, gate valves shall be marked with a marker post to be located as directed by the District's Repre- sentative in the field. Timber for guard posts shall be dense structural grade redwood, graded according to current standards of the California Red- wood Association. Posts shall be U" x U" x 5"*" surfaced on four (4) sides with top chamfered. The posts shall be painted in accordance with the Standard Specifications for Painting. On the side facing the water main or roadway, the word "WATER" and the distance in feet from the post to the gate valve shall be stenciled in black letters two inches (2") high. Posts shall be set 2'4-" into the ground. B-y. Markings: All gate valves shall be plainly marked with raised let- tering cast on the valve cover or on the side of the valve casing to indicate the following: Company Name Size of Valve List (or Number) of Valve Valve Working Pressure Payment will be made at the applicable contract unit price for gate valves, which price shall include full compensation for furnishing all labor, materials, tools and equipment and doing all work involved in furnishing and installing the gate valves complete in place as herein specified, except that payment for all gate valves which are shown on the contract drawings as incorporated in or part of an assembly or station for which unit or lump sum prices are provided, shall be considered to be included in the con- tract price for such assembly or station, and no additional allowance will be made therefor. 3-10-61 Gate Valve Standards - 2 STANDARD SPECIFICATIONS FOR PAINTING A. General: All surfaces which are to be painted shall be cleaned and painted in accordance with the applicable sections of this Specification. A-l. Scope of Work: The work shall include all labor, materials, equip- ment and scaffolding for the cleaning and preparation of surfaces to re- ceive the paint and for all painting and enameling as herein specified. B. Materials and Workmanship: B-l. General Requirements: All materials shall be unadulterated and shall be delivered to the job site in original, unbroken packages bearing the brand and manufacturer's name. They shall be opened and mixed at the job site. All work shall be done by skilled and experienced painters. All work- manship shall be of a kind and quality meeting the requirements of the best standards of the painting industry. Spray painting will not be per- mitted. Each coat shall be applied in such a manner as to assure an even, smooth, uniform coat free from dirt, runs, brush marks and laps and must ,be applied during favorable weather. Drop cloths shall be used to pro- tect floors, equipment, piping, and other exposed surfaces from spatters. B-2. Painting Metal Surfaces: All surfaces to be painted shall first be thoroughly cleaned to remove dirt, loose scale, rust, oil and grease and other foreign matter before painting. Cleaning shall be done with abra- sives, scrapers, wire brushes, or other means approved by the District's Representative. The paint to be applied shall consist of two (2) coats of read lead primer and two (2) coats of finish paint. Red lead paint shall be Dutch Boy, Quick-Drying Red Lead Primer No. 052, or approved equal. Finish paint shall be Dutch Boy Nalco Synthetic Finish Paint, or approved equal, color to be selected. Paint shall be allowed to dry thoroughly between successive coats. B-3. Painting Wood Surfaces: All surfaces to be painted shall be tho- roughly cleaned of all dirt, oil, grease and other foreign substances. The paint to be applied to exterior wood surfaces shall consist of one (1) coat of wood primer and two (2) coats of exterior wood finish paint. Wood primer shall be Dutch Boy Exterior Wood Primer No. 010 or approved equal. Finish paint shall be Dutch Boy Exterior House Paint, or approved equal, color to be selected. The paint to be applied to interior wood surfaces shall consist of one (1) coat of enamel undercoat and two (2) coats of enamel finish paint. Undercoat shall be Dutch Boy Enamel Undercoat No. 005 or approved equal. Painting Standards - 1 Finish coats shall be Dutch Boy Quick-Drying Enamel, or approved equal, color to be selected. Paint shall be allowed to dry thoroughly between successive coats. B-U. Paint Concrete and Masonry Surfaces: Surfaces to be painted shall first be thoroughly cleaned to remove dirt, dust, or other foreign matter that might prevent adhesion of the paint. The paint to be applied to exterior surfaces shall consist of three (3) coats as follows: First Coat Synkoloid Prime-n-Fill, or approved equal Second Coat Dutch Boy Nalprep or approved equal Third Coat Dutch Boy Nalcrete, or approved equal, color to be selected The paint to be applied to interior surfaces shall consist of a prime coat of Dutch Boy Nalprep, or approved equal, and a finish coat of Dutch Boy Nalcrete, or approved equal, color to be Sea Foam Green. C. Payment for paint and for conforming to all of the provisions of this Specification shall be considered to be included in the contract unit or lump sum price (s) paid for the various items of work and no addi- tional allowance will be made therefor. Painting Standards - 2 STANDARD SPECIFICATIONS FOR PORTLAND CEMENT CONCRETE A. General: The contractor shall furnish all labor, materials, tools and equipment for the construction of plain and reinforced concrete as shown on the plans and herein specified. B. Materials and Workmanship: B-l. Cement: Cement shall be Portland cement Type II. B-2. Aggregate: All aggregates used in grout, mortar, and in concrete shall conform to the provisions of Section 26 of the Standard Specifi- cations of the California Division of Highways dated August, 195^. The maximum nominal size of coarse aggregate shall be one and one-half inch (1-1/2"). B-3- Water: The water used shall be of potable quality. B-U. Admixtures: Admixtures to prevent segregation and to improve work- ability or to accelerate the setting of the concrete will be per- mitted provided the admixture proposed shall first .be approved in writing by the Engineer and the proportions of the admixture to be used shall be fixed by Engineer. B-5• Strength Requirements: All concrete shall be proportioned to attain a minimum cylinder strength of 3,000 psi in twenty-eight (28) days. The compressive strengths are to be determined in accordance with ASTM C39. Not less than six sacks of cement shall be used per cubic yard. B-6, Proportioning: The exact proportions of the concrete ingredients shall be established by a material testing laboratory selected by the Engineer. The contractor shall notify the Engineer of his proposed source of aggregate in sufficient advance time to permit the design of the mix. B-7- Mixing: The cement, sand and coarse aggregates shall be so mixed and the quantity of water added shall be such as to produce a homog- eneous mass of uniform consistency. Each mixer used shall be of the batch type and be of a design to insure uniform distribution of all the materials throughout the mass during the mixing operation, when operated at the speed and capacity recommended by the manufacturer and the mixer shall be so operated. Each mixer shall be so constructed that the Engineer can conveniently observe the consistency and uni- formity of the concrete in the mixer during the operation. Portland Cement Concrete Standards - 1 Only sufficient water shall be used in mixing any class of concrete to produce a workable mass suitable for the particular type of con- struction involved. Water shall be added prior to or during the mixer charging operation. The mixing of each batch after all materials have been placed in the mixer shall continue for not less than ninety (90) seconds for a stationary mixer smaller than two (2) cubic yards in capacity and for not less than two (2) minutes for a larger stationary mixer. If transit mix concrete is used, the mixing time shall not be less than three (3) minutes for each cubic yard of capacity. The mixture shall be continuously agitated until all of the concrete has been discharged from the mixer drum. The total elapsed time between the introduction of water to the batch and depositing the complete mix in the forms shall not exceed sixty (60) minutes for concrete mixed in transit mixers. B-8. Placing: Concrete shall be placed only in the presence of a duly authorized representative of the Engineer and not until all form work, reinforcement, installation of fixtures to be embedded, and preparation of concrete surfaces to be bonded to have been approved by him. All concrete placed in violation of this provision will be rejected. Concrete surfaces on or against which other concrete is to be placed shall be thoroughly cleaned of surface laitance and clean aggregate shall be exposed by wire brushing, sand blasting or air and water pressure jet. Each concreting operation shall be continuous until the placing in the course, section or monolith is completed. Fresh concrete shall not be permitted to fall from a height greater than six feet (6') without the use of adjustable length pipes or "elephant trunks". In order to assure that there will be no interruption in such continuous placing, the contractor shall have available stand-by concrete mixing equipment ready for use in case of breakdown or he shall make arrange- ments, satisfactory to the Engineer, with the supplier of concrete, if transit mix concrete is being used, so that the Engineer may be assured that once placement is started it can be completed without interruption. The vibrating equipment, including stand-by equipment, shall be at the site and tested in the presence of the Engineer's representative during the day preceding the planned day of placement. Appropriate mechanical vibration shall be used in placing concrete to eliminate stone pockets and voids, to consolidate each layer with that previously placed, to completely embed reinforcing bars and other fixtures, and to bring just enough fine material to the faces of top and exposed surfaces to produce a smooth, dense and even texture. Vibrators shall be of the high frequency internal type and the number Portland Cement Concrete Standards - 2 in use shall be ample to consolidate the incoming concrete to a proper degree within fifteen (15) minutes after it is deposited in the forms. In all cases, at least two (2) vibrators shall be available at the site. The use of approved external vibrators for compacting concrete will be permitted when the concrete is otherwise inaccessible for adequate compaction, provided the forms are constructed sufficiently rigid to resist displacement or damage from external vibration. B-9- Forms: All forms shall be smooth, mortar tight, true to the required lines and grades and of sufficient strength to resist any appreciable amount of springing out of shape during the placing of concrete. All foreign matter shall be removed from forms before concrete is placed therein. Forms previously used shall be thoroughly cleaned before re-use. Prior to placing concrete, all forms shall be oiled with a high penetrating form oil which leaves no film on the surface that can be absorbed by the concrete. Immediately prior to placing con- crete, all forms shall be thoroughly wetted. Forms shall not be removed until the concrete has hardened sufficiently to safely support its own weight and possible construction loads. Forms supporting concrete members which are subject to direct bending stress shall not be removed or struck until concrete test cylinders show that a strength of not less than 2,500 psi in compression has been attained. In no case, however, shall forms be removed or released prior to the expiration of forty-eight (48) hours following placing of the concrete. Forms for all surfaces which will not be completely enclosed or hidden below the final surface of the ground shall be made of surfaced ply- wood. Insofar as practicable, forms shall be so constructed that the form marks will conform to the general lines of the structure. All sharp edges shall be chamfered with one inch by one inch (l" x l") triangular filets. Form clamps and ties with effective water stops shall be used to main- tain accurately the specified wall thicknesses. These ties shall be either of the threaded or snap-off type so that no metal will be left within one and one-half inches (1-1/2") of the surface of the wall. The use of twisted wire ties will not be permitted. B-10. Openings: Pipe sleeves, inserts for pipe connections, anchors, and forms for pipe holes must be accurately placed and securely fastened to the forms in such a manner that the placing of concrete and stripping of forms will not alter their alignment or location. Openings may be formed at sleeve locations and sleeves placed and grouted with cement mortar containing fifteen (15) pounds of EMBECO, or equal, per bag of cement, after wall concrete is placed. Portland Cement Concrete Standards - 3 B-ll. Joints: Construction joints shall be made only where shown on1 the plans unless otherwise approved by the Engineer. In case of emergency, construction joints shall be placed as directed by the Engineer. Construction joints shall be mechanically bonded by means of keys cast into the joint surfaces. B-12. Curing: All newly placed concrete shall be kept wet by the con- tinuous application of water for the first seven (7) days after the concrete has been placed. The use of curing compounds will not be per- mitted. B-13. Surface Finishes: During the placing of concrete, care shall be taken in vibrating or otherwise consolidating the concrete to in- sure surfaces of even texture free from voids. Immediately after the forms have been removed, all form bolts shall be removed to a minimum depth of one and one-half inches (1-1/2") below the surface of the concrete. All holes and depressions caused by the removal or cutting back of such form bolts shall be cleaned and filled with cement mortar composed of one part by volume of cement to two parts of sand. The mortar shall contain fifteen (15) pounds of EMBECO, or equal, per bag of cement used. Care shall be exercised to obtain a perfect bond with the concrete. All rock pockets and honeycombed areas shall be repaired by chipping back to solid concrete and filling the resulting space in the same manner as specified for bolt holes. This work shall be done immed- iately following the removal of forms. If in the judgment of the Engineer rock pockets are of such an extent or character as to affect the strength of the structure materially or to endanger the life of the steel reinforcement, he may declare the concrete un- acceptable and require the removal and replacement of that portion of the structure. Except for surfaces which are to be buried, all fins and other pro- jections shall be removed and the surfaces shall be brushed with stiff wire brushes or otherwise finished until a uniform color has been obtained. The use of carborundum stones may be required to remove unsightly bulges or discolorations. The object of these operations is to obtain smooth, even surfaces of uniform appearance, free from unsightly bulges or depressions due to form marks and other imperfections. The contractor's attention is called to the fact that the degree of care exercised in building forms and the character of materials used in formwork are the main factors affecting the amount of finishing which will be required. All flat work shall be finished and worked from the poured slab and floated and troweled to a smooth hard finish. Portland Cement Concrete Standards - B-lU. Reinforcement: Reinforcing bars shall conform to the requirements of the Standard Specifications for Minimum Requirements for the De- formations of Deformed Steel Bars for Concrete Reinforcement, ASTM Designation A305 and of the Standard Specifications for Billet Steel Bars for Concrete Reinforcement, ASTM Designation A15; or Standard Specifications for Rail-Steel Bars for Concrete Reinforcement, ASTM Designation Al6j or Standard Specifications for Axle-Steel Bars for Concrete Reinforcement, ASTM Designation Al85- Bends for stirrups and ties shall be made around a pin having a dia- meter not less than three (3) times the minimum thickness of the bar. Bends for other bars shall be made around a pin having a diameter not less than six (6) times the minimum thickness of the bar, except that for bars larger than one inch (l") the pin shall be not less than eight (8) times the minimum thickness of the bar. All bars shall be bent cold. Metal reinforcement shall be accurately placed in accordance with the plans and shall be securely held in position by wiring at inter- sections with No. l6 or larger wire and by using concrete spacers. Reinforcement, at the time concrete is placed, shall be free from rust, scale or other coatings that will destroy or reduce the bond. Metal supports may be used provided no portion of the support ex- tends to within one and one-half inch (1-1/2) of the surface of the concrete. Wooden supports shall not be used. B-15- Rubber Water Stops: Water stops shall be extruded from plain or synthetic rubber as manufactured by the Gates Rubber Company, or approved equal. Special corner sections shall be shop fabricated. Shop and field splices shall be full molded in a splicing mold and shall have a tensile strength of not less than fifty per cent (50$) of the unspliced section. Stops shall be firmly supported during concrete placement to prevent dislocation and to insure that ends remain at right angles to the construction joints. Portland Cement Concrete Standards - 5 STANDARD SPECIFICATIONS FOR STEEL PIPE WATER MAIN AND FITTINGS A. General Requirements; A-l. General: This Specification designates the requirements for the manufacture, installation, measurement and payment for steel pipe for use in supply lines and distribution systems which carry water under pressure. A-2. Additional Requirements: Materials and workmanship in the manufac- ture and installation of steel water mains shall conform to the applicable requirements of the following specifications or the latest revisions thereof which are hereby included and made a part of this Specification. American Society of Testing Materials Specification A American Society of Testing Materials Specification A 139 American Society of Testing Materials Specification A 211 American Water Works Association C-201 American Water Works Association C-202 Dimensions for Steel Water Pipe Fittings AWWA C-208-55T A-3. Scope of Work; The Contractor performing the work under this Speci- fication shall furnish all labor, materials, tools and equipment which are necessary to install complete and ready for operation the steel water mains shown on the Plans and herein specified. B. Materials and Fabrication: B-l. General; Steel pipe shall be automatic electric welded steel pipe with centrifugally-spun cement mortar lining and cement mortar coating as herein specified. The pipe to be installed at the various locations is identified on the Plans by symbol indicating type of pipe, inside diameter of pipe and pressure class. For example, pipe identified on the Plans as S-lU"-150 would be the designation for steel pipe, 14-" diameter pipe, 150 psl work- ing pressure class. The inside diameter of the pipe shall be measured to the internal face of the cement mortar lining except that steel cylinder diameters for 12" and smaller diameter pipe shall be as specified in Article B-2.1 below. B-2. Steel Cylinders; Steel plates or sheets used in the manufacture of the pipe shall conform to the physical properties of ASTM Specification A 283, Grade B (for plates) or Specification A 2^5, Commercial Grade (for sheets) both of the latest revision. B-2.1. Design: The wall thickness of the steel cylinder shall be computed on the basis of having a maximum stress of 13,500 psi in the steel at the specified working pressure with no allowance for Steel Pipe Standards - 1 tensile strength of the concrete, except that the following minimum gauges shall prevail: Nominal Diameter Minimum Gauge if" through IB" 12 20" through 24" 10 27" 3/16" The following formula shall be used to determine the stress in the steel: s - £5s - It where S = Stress, Ibs. per square inch P = Working Pressure, Ibs. per square inch D = Inside Diameter of Steel Cylinder inches (measured in bell end at rubber gasket seat) t = Wall Thickness, inches For pipe 12" and smaller in diameter, the steel cylinder diameters shall conform to the following tabulation: Nominal Diameter Steel Cylinder Diameter j_n 4-1/2" OD 6" 6-5/8" OD 8" 8-5/8" OD 10" 10-3A" OD 12" 12-3A" OD B-2.2. Seams: The pipe shall be manufactured in Standard sections not less than 18 feet nor more than UO feet in length and having not more than one (1) longitudinal welded seam per section, except where shorter lengths or more than one (1) longitudinal welded seam is re- quired by curved alignments or other special conditions. Spiral welded pipe is acceptable under these Specifications. Pipe manufac- tured in sections of 20 feet or less in length shall have not more than one (1) circumferential seam; sections more than 20 feet, but less than 30 feet in length shall have not more than two (2) circum- ferential seams; and sections 30 feet or more in length shall have not more than three (3) circumferential seams, except where it is necessary to increase the number of such seams because of special conditions. All seams shall be butt-welded on electric welding machines in such a manner as to build up a full oval bead on the outside and to effect complete penetration, perfect fusion of the welding rod with the parent metal and a smooth interior. Imperfections in the weld, if any, shall be repaired by rewelding. B-3. Field Joints: Field joints may be any one of the following types except at locations where a specific type is designated on the Plans. Welded Rubber Ring (PreSeal or approved equal) Flanged Steel Pipe Standards - 2 B-3.1. Welded Joints: One (1) of each section shall be swaged out to form a female or bell end which shall permit the male or spigot end to enter approximately one (1) inch with a clearance of approxi- mately 1/32 inch. The spigot end shall be "sized" to permit it to enter the bell end of the adjacent section and the weld bead shall be ground flush for the distance it is to enter the bell end. B-3.2. Rubber Ring Joints: One (1) end of each pipe section shall be swaged approximately 4 inches deep with a flared lip to form the bell. The spigot end shall have a groove formed by rolling or other suitable means. Both ends shall be formed in such a manner as to assure perfect roundness of the ends with a groove of uniform dimen- sions. Each side of the groove shall be beaded or "Shouldered" to help form the ring gasket recess. B-3.3. Flanged Joints: Pipe section ends required to be fitted with flanges shall have the weld bead ground flush for the distance the flange is to slip over the end. Flanges shall be machine-faced steel and shall be welded to the pipe ends with full circumferential fillet welds both inside and outside. All flanges shall be suitable for the specified operating pressures and shall be designed to fit the valve or fitting to which they connect. Flanges shall conform to AWWA, Tentative Standard Specifications for Steel Pipe Flanges (C-207-52). Bolts shall be standard square head machine bolts, conforming to ASTM Specifications A-107. Nuts shall be hexagonal, cold-pressed, semi- finished steel, manufactured in accordance with ASTM Specification A-194, Class "0". All bolt threads shall be lubricated with graphite and oil. All bolts installed underground shall be thoroughly coated with asphalt after installation. Gaskets shall be full face 1/16" "Granite" with bolt holes prepunches, or approved equal. B-3.4. Dresser-Type Coupling Joints: The pipe sections shall have plain ends for dresser-type couplings in accordance with AWWA Specifi- cations for Steel Water Pipe. Couplings shall be Dresser Coupling Style 38 or Smith-Blair Series 4S. Diameter and number of bolts and sleeve lengths and thicknesses shall conform to the following minimums: Bolts SleeveNominal Pipe Diameter 6" 8" 10" 12" and 14" 16" 18" 20" 22" 24" B-4. Hydrostatic Test: Each section of pipe shall be shop tested under an internal pressure of not less than that computed from the following formula : Number 4 56 78 910 12 13 14 Diameter 1/2" 5/8"5/8" 5/8" 5/8" 5/8" 5/8" 5/8" 5/8" 5/8" Length 5" 5" 5" 7" 7" 7" 7" 7" 7" 7" Thickness 1/4" 1/4" 1/4" 1/4" 1/4" 5/16" 5/16 " 3/8" 3/8" 3/8" Steel Pipe Standards - 3 1^,000 x t D where P = Test pressure, Ibs. per square inch t = Minimum thickness of plate course in pipe section tested in inches D = Internal diameter of steel pipe, in inches While under this pressure the pipe shall be sharply struck at twelve (12) inch intervals along the weld with a 1-1/2 pound hammer with blows equivalent to dropping the hammer a distance of two (2) feet. The blows shall be struck in such a manner as to jar thoroughly the weld. Immediate- ly after the hammer test has been completed, the pressure shall be maintained for a sufficient length of time to allow for the inspection of the section for tightness. All leaks shall be repaired by chipping to sound metal, hand welding and the section then retested. B-5. Interior Cement Mortar Lining: B-5.1. Preparation of Surfaces: Prior to lining, the pipe shall be cleaned of all loose mill scale, moisture, rust, sand, dust, oil, grease and/or objectionable matter. B-5-2. Materials: The mortar shall consist of one (1) part portland cement to 2-1/2 parts, by volume of clean- sharp sand. Cement used for cement mortar shall conform to the latest revision of ASTM Specifica- tion C-150-^9, Type II. Sand shall consist of clean, inert, sharp durable material of a size so that 100 per cent will pass a sieve having clear openings of the size nearest to one-half (1/2) the specified minimum thickness of the lining. Mortar shall be thoroughly mixed and made workable with a minimum quantity of clear potable water. All cement mortar shall develop an ultimate compressive strength of 3,000 to M-,000 psi at 28 days when tested in accordance with ASTM Specifica- tion C-39 or the latest revision thereof. B-5.3. Application and Treatment; The mortar shall be applied to the interior surface of the pipe by means of equipment specifically designed for the purpose, using a trough or troughs or a retracting feed line or lines in such a manner that uniform distribution through- out the length of pipe is attained. The pipe shall be slowly rotated with its axis in a horizontal position while the mortar is being in- troduced to assist in uniformity of distribution. Both ends shall be provided with suitable end dams during the spinning operation. These dams shall assist in controlling the thickness of the mortar.coating being applied and shall provide a square-finished end for the lining. After application of the mortar, the rate of rotation of the pipe shall be uniformly increased to a speed that will compact the mortar. This speed shall be maintained until all excess water has been forced to the surface. During the spinning operation surplus water shall be expelled from the pipe by means of a blower or other suitable means. The peripheral speed and the length of spinning Steel Pipe Standards - 4- time shall be sufficient to obtain a dense, well-compacted lining with a smooth surface free from all defects. The minimum thickness of the lining shall be as shown in the following table: Minimum Nominal Diameter Lining Thickness 6" through 12" 57W IV and 16" 1/2" 18" through 21" 3A" Immediately after completion of the above operation, the lining shall be water cured without being disturbed for at least seven (7) days in a manner that will prevent loss of moisture. This curing time may be reduced to a minimum of four (4-) days if an exterior cement mortar coating is to be applied to the pipe. B-6. Exterior Coating; Steel pipe lines shall receive an exterior cement mortar coating. B-6.1. Materials: Materials for the exterior cement mortar coat- ing shall be the same as those used for the interior cement mortar lining as specified in Paragraph B-5.2. above. B-6.2. Application and Treatment: After the interior of the pipe has been lined, a cement mortar coating shall be applied to the out- side of each section of pipe by means of a nozzle or nozzles, through which the mortar is forcibly expelled against the outside surface of the pipe in such a manner as to form an even, dense and tightly ad- hering coating. During the coating operation, the pipe shall be ro- tated and moved in a longitudinal direction beneath the nozzles. The rotation and longitudinal travel of the pipe shall be uniform and at the proper rate to provide a coating having a minimum thickness of 3/4 inch. The standard reinforcing for the cement mortar coating shall be spirally wound steel reinforcing wire at a pitch of one inch (1") embedded in the center of the coating. The wire shall be a bright basic wire with an approximate ultimate tensile strength of 80,000 psi and shall be No. 16 gauge or heavier. Immediately after the coating has been completed, the outside of each end of each section shall be cleansed to bare metal and shall have the mortar trowelled and shaped to suit the type of joint being used. All bare metal exposed at the ends of each section of pipe shall be cleaned and protected against corrosion. Each day's production of cement mortar lined and coated pipe shall be plainly identified by indelible markings inside of one (1) of each joint. The coating shall then be water cured for at least seven (7) days without being disturbed. B-7. Fabricated Fittings; All bends, ells, tees, crosses, reducers and other special fittings shall be constructed of cement mortar lined steel pipe with cement mortar coating as specified for pipe mains and shall be fabricated at the plant for delivery and installation in the work in accord- ance with the Tentative Standard Specifications for Dimensions for Steel Water Pipe Fittings, AWWA C-208-55T. No field fabrication of fittings will be permitted except for butt closure joints. Steel Pipe Standards - 5 B-7.1. Tapers: Tapers shall be provided at each end with stubs of pipe six Inches (6") in length and of the same size and gauge as the connecting pipe. The tapered section shall be of the same gauge as the larger diameter pipe and shall be approximately 12" In length for each reduction of 2" In the nominal pipe diameter. B-7.2. Butt Closure Joints: Butt closure joints shall conform to the details shown on the Plans and shall be Installed at all points where a butt closure Is made. The butt straps shall be of the same thickness as the pipe wall, at least ten Inches (10") wide, and rolled to fit the outside diameter, and shall be center- ed over the ends of the pipe sections they are to join. They shall be field welded to the outside of the pipe along both edges by full circumferential fillet welds or one of the edges may be shop welded and other field welded. A half of a standard five inch (5") pipe coupling shall be shop welded to the top section of the butt strap to permit access for mortaring the inside of the joint. After weld- ing and mortaring, this coupling shall be closed with a standard cast iron plug. In addition, the joint shall be coated with the same material used to coat the pipes. B-8. Inspection: The District's Representative shall at all times have the right to inspect the work and materials in the course of manufacture. The manufacturer shall furnish the District reasonable facility for ob- taining such information as it may desire regarding the progress and man- ner of the work and the character and quality of materials used. B-9. Shop Plans: Shop drawings of all pipe and fittings shall be sub- mitted to the District's Engineer and shall be approved by him prior to fabrication of the pipe and fittings. Such approval is an additional precaution against errors and is not to be construed as relieving the Contractor of the full responsibility for the accuracy of the shop plans. B-10. Loading and Transporting Pipe: During loading and unloading opera- tion the pipe shall be handled with slings of sufficient width to prevent damage to the exterior coating and in such a manner to prevent injury to the cement mortar lining. Pipe loaded for transporting to the job site shall be supported and chocked with sawdust bags or by other means which will properly support the pipe and prevent its being damaged while in transit. Unloading shall be accomplished in a workmanlike manner and every precaution shall be taken to prevent damage to the pipe. Under no circum- stances are pipe sections to be dropped or bumped in handling. C. Installation: C-l. Excavation and Backfill: Excavation and backfill shall conform to the Standard Specifications for Earthwork. C-2. Installation Procedures and Workmanship: Prior to laying the pipe, the bottom of the trench shall be graded and prepared to provide a firm and uniform bearing throughout the entire length of each joint of pipe. Bell holes of ample dimension shall be dug in the bottom of the trench at the location of each joint to facilitate the joining. The trench shall have a flat or semicircular bottom conforming to the grade to which the pipe is to be laid. Pipe shall not be laid on earth mounds. Steel Pipe Standards - 6 C-2.1. Welded Joints: Joints shall be welded after the pipe has been laid in the trench to the grade and elevation shown on the plans. When the pipe is being laid, both the spigot and the bell ends shall be thoroughly cleaned of all foreign matter and all pro- tective material shall be removed from the surfaces that are to be in contact at the joints. Just prior to joining the two ends to- gether, each end of the pipe shall be "buttered" with cement mortar in such a manner and in sufficient quantity to completely fill the space between the respective mortar linings. After the joining is completed, the pipe interior shall be swabbed to remove all excess mortar by drawing an approved type swab or squeegie through the pipe. For pipe 24" in diameter and larger, the inside of the joint shall be hand pointed. All welding shall be done by experienced welders qualified in accordance with the Standards of the American Welding Society. Welding electrodes shall comply with the requirements of ASTM Desig- nation A-233. In all hand welding, the metal shall be deposited in succes- sive layers and the minimum number of passes or beads in the completed weld shall be as follows: Steel Cylinder Thickness, Inches Smaller than 3/16" & lA" 5/16" 3/8" Fillet Weld Minimum Number of Passes 1 2 3 3 After the Joints have been welded and inspected, a cement mortar coating shall be applied over the joint and lapped and bonded with the existing coating on the pipe in such a manner as to insure continuous uniform protection over the entire pipeline. Each joint shall be shaded with moistened backfill material or at the option of the Contractor coated with an impervious membrane (Hunt's Process or approved equal) immediately following the application of the cement mortar coating. C-2.2. Rubber Ring Joints; When the pipe is being laid, the ends of the pipe shall be thoroughly cleaned and the gasket placed in the groove on the spigot ring and the spigot end of the pipe shall then be entered into the bell of the adjoining pipe and forced into posi- tion. The gasket and the inside surface of the bell shall be lubri- cated with a suitable vegetable soap compound which will facilitate the telescoping of the joints. Just prior to joining the two ends together, each end of the pipe shall be buttered with cement mortar in such a manner and in sufficient quantity to completely fill the space between the respective mortar linings. After the joining is completed, the pipe interior shall be swabbed to remove all excess mortar by drawing an approved type swab or squeegie through the pipe. For pipe 24" in diameter and larger, inside of the pipe shall be hand pointed. The outside joint recess shall then be poured with grout after a felt sheet or other suitable material has first been placed Steel Pipe Standards - 7 around the pipes at the joints and held securely in place to prevent leakage while the joint is being poured. The grout shall consist of one part cement to one-and-one-half parts sand and be mixed to the consistency of thick cream. The joints shall be poured and rodded from one side only until the grout shows on the other side. Care shall be exercised to fill the joint completely. Approximately two hours subsequent to the pouring of the joint, the joint shall be rechecked and if any settlement, leakage, or shrinkage has taken place, the joint shall be refilled with grout. C-2.3. Flanged Joints: Flange faces and gaskets shall be thoroughly cleaned just prior to jointing. Following tightening of the bolts, all exposed metal surfaces shall be cleaned, primed, and coated with two coats of hot asphalt. Primer shall be Union Bituminous Primer or approved equal, and asphalt shall be Union Pipe Dip or approved equal. The Primer shall be allowed to dry one-half to two hours prior to applying the first hot sling coat of asphalt. The second hot sling coat shall not be applied until the first has been allowed to cool. Care shall be taken to insure that all exposed metal surfaces are coated. C-2.4-. Dresser-Type Coupling Joints: Just prior to installation, each pipe end for a distance of 6 to 8 inches back from the end shall be thoroughly cleaned to remove oil, dirt, loose scale, rust and other foreign matter. Flanges, gaskets, sleeves shall then be assembled on the pipe ends in accordance with the manufacturer's recommendations. Gaskets, pipe ends and coupling 'sleeve flares shall be lubricated with a vegetable soap compound to facilitate the Joining. Coupling sleeves shall be accurately centered over the pipe ends and one pipe end shall touch the other or pipe ends shall touch the coupling sleeve centering stop if the coupling sleeve is so equipped. Bolts shall be tightened to the torque recommended by the manufacturer and the Contractor shall provide and keep at the site a torque wrench for checking the torque on the bolts. Prior to applying the asphalt coating specified below, the torque on all bolts shall be checked in the presence of the District's Represen- tative and, where necessary, shall be adjusted so that all bolts are at recommended torque. All exposed coupling and pipe surfaces shall be primed and asphalt coated as specified for flanged joints in Paragraph C-2.3 above. "Buttering" with cement mortar and swabbing or painting of the inside of the joints is not required. C-3. Concrete Thurst Blocks: Concrete thrust blocks shall be placed as shown on the Plans and shall consist of Class B Portland cement concrete containing not less than five (5) sacks of portland cement per cubic yard and shall conform to the applicable provisions of the California Division of Highways Standard Specifications, January, 1960. Steel Pipe Standards - 8 Concrete blocks shall be placed between the undisturbed ground and the fitting to be anchored. Quantity of concrete and the area of bearing on the pipe and undisturbed soil shall be as shown on the Plans or direct- ed by the District's Representative. The concrete shall be so placed, unless specifically shown otherwise on the Plans so that the pipe joints and fittings will be accessible for repairs. C-4-. Preventing Foreign Matter from Entering the Pipes: At times when the pipe laying is not in progress, the open ends of the pipe shall be closed by a wooden plug or by other means approved by the District's Representative. This provision shall apply during the noon hour as well as overnight. C-5. Testing; After the pipe has been laid, the pipeline and appur- tenances shall be subjected to a hydrostatic pressure test of fifty pounds per square inch (50 Ibs. psi) in excess of the designated work- ing pressure for the class of pipe being tested. The maximum length of pipeline which may be tested at one time shall be 2500 feet except for those portions of the pipeline where the distance between valves is greater than 2500 feet. Duration of pressure test shall be four (4) hours and the test shall be conducted in the following manner: All air shall be expelled from the pipe. To accomplish this, if air valves or hydrants or other outlets are not available, taps shall be made at the high points in the pipeline to expel the air and these taps shall be tightly plugged afterwards. The pressure in the pipeline shall then be pumped up to the specified test pressure. When the test pressure has been reached, the pumping shall be discontinued until the pressure in the line has dropped 25 psi, at which time the pressure shall again be pumped up to the specified test pressure. This procedure shall be repeated until four (4) hours have elapsed from the time the specified test pressure was first applied. At the end of the four (^) hour period the pressure shall be pumped up to the test pressure for the last time. The leakage shall be considered as the total amount of water pumped into the pipeline during the four (4) hour period including the amount required in reaching the test pressure for the final time. Leakage shall not exceed the rate of twenty (20) gallons per inch of diameter per mile of pipe per twenty-four (24-) hours. Any noticeable leak shall be stopped and all defective pipe, fit- tings, valves and other accessories discovered in consequence of the test shall be removed and replaced by the Contractor with sound material and the test shall be repeated until the total leakage during a test of four (U) hours duration does not exceed the rate specified above. All concrete anchor blocks shall be allowed to cure for at least five (5) days prior to testing and all mortared joints shall be allowed to cure for not less than three (3) days prior to testing. C-6. Sterilization: Subsequent to the pressure tests and prior to accept- ance of the work, the entire pipeline including all valves, fittings and other accessories shall be sterilized in accordance with American Water Works Association "Standard Procedure for Disinfecting Water Mains," AWWA C-601-51.Steel Pipe Standards - 9 Treated water shall be retained in the pipes for at least twenty- four (24) hours and a residule at not less than ten (10) ppm shall be produced in all parts of the line after the twenty-four (24) hour period has elapsed. During the sterilization process all valves and other accessories shall be operated. After chlorination, the water shall be flushed from the line at its extremities until the replacement water tests are equal chemically and bacteriologically to those of the permanent source of supply. D. Measurement and Payment; D-l. Measurement for payment for steel pipe water main and fittings will be made along the center line of the pipe from pipe end to valve flange or to center line of intersecting pipe, as the case may be, as actually constructed, complete in place, and in accordance with the Plans and these Specifications. D-2. Payment; The price paid per linear foot for steel pipe water main shall include full compensation for furnishing all labor, materials, tools and equipment, and doing all the work involved in furnishing and installing steel pipe water main and fittings, complete in place as herein specified; except that payment for all steel pipe which is shown on the contract draw- ings as incorporated in or part of an assembly or station for which unit or lump sum prices are provided, shall be considered to be included in the con- tract price for such assembly or station, and no additional allowance will be made therefor. Steel Pipe Standards - 10 CARLSBAD MUNICIPAL WATER DISTRICT San Diego County,, California SQUIRES DAM FOR IMPROVEMENT DISTRICT HO. U •Addendum Ho. I following additions shall become a part of the Cortract Documents and Construction Specifications for the above-named project, (1) Paragraph E~llt Ffeaaureasent and Payment, of Section IV,, Dam Construction, of the Detail Specifications shall Include the following! For quantity determination purposes, shrinkege between re°> serve impervious borrow area measured quantities and in«place pay quantities shall be determined by the project laboratory during construction on the basis of the average of 10 random selected field density tests in the raserve impervious borrow area, compared with 10 related field densities taken on the embankment „ The pay quantity for iiapervious on-site borrow shall be the total neat line quantity of impervious core zone material in the embantaient, less the amount of iiopervious material from the raserve borrow area as determined above. Dated ; November 35 19&L BQY&E ENGINEERING W, Ao Curtis Division Engineer RHW/LAC;Jr BEWO CARLSBAD MUNICIPAL nnil . WATER DISTRICT NOV 6 61 PROJECT: BOYLE ENGINEERING San Diego Division CONTRACT CHANGED ORDER - Squires Dam, Improvement District No. 4 Carlsbad. Municipal Water District 5241-D February 6, 1962 F Co. e.,contractor) o. BQ* 1 (street address, p.o.b Pn,(city, state CONTRACT CHANGE ORDER NO. The contractor is herebsr authorized and directed to make the herein described changes from the plans and specifications or do the following work not includ- ed in the plans and specifications for the construction of this project. CHANGE REQUESTED BY: ___J)latrlafe_ DESCRIPTION OP CHANGE: concrete — wl feb to. -full, .encasement, through- encasein^ntf. Sheet 1 of 3 BEWO _____ CCCf 1" DATE liKruary 67 If 62 (1) Estimate of Increases anS/or decreases In contract items at contract unit prices r INCREASES; Item @. $ « $ Item . _® * . ~ $ Item „_____, ™_____«^.^ $ _ _ ™ $ Item @ $ - $ Item _____ ^^ ^ ^,™VTO__m,,_. ,_® ^ = $ TOTAL INCREASE « $ DECREASES! Item © $ = $ Item ^ _ ^____ _. _@ $ _ _ = $ Item _@ $ n = $ Item ^ »__«_„__„« ..-.-,„..-....,J_—. .^^ ^ __-^. - ^ Item ^__ ____>».,. „ ® ^ ._ „ * $ TOTAL DECREASE = $ TOTAL JIET INCREASE/DECREASE IN CONTRACT PEEKS = $ (2) Estimate of extra work at agreed prices snd/or force accounts ^ Final .jaym£Rt-.t2.b.e ,9n„ upit jrIc TOTAL AMOUNT AT AGREED PRICES OXXXMZ3KJGEESa33CS=: $ 600.00 TOTAL COST OP THIS CHANGE ORDER $ _ 600 ^00 ^ J*lc rease Sheet 2 of 3 DATE It is agreed that consecutive calendar days extension of time will be allowed by reason of this change, Prepared by BC3T&E ENGINEERING Project Engineer L. A. Clayton ACCEPTED: Date: APPROVEDs Date s HOTE; THIS CHANGE ORDER IS WOT EFFECTIVE UNTIL APPROVED BY THE OWNER Distribution of Copies; Original for CONTRACTOR after acceptance and approval First copy for BOYLE ENGINEERING PROJECT FILE prior to acceptance and approval Second copy for OWNER prior to acceptance and approval Third copy for CONTRACTOR after acceptance and prior to approval Fourth copy for RESIDENT ENGINEER after acceptance and prior to approval Fifth copy for BOYLD EHGINEERING PROJECT FILE after acceptance and approval Sixth copy for RESIDENT ENGINEER after acceptance and approval Seventh copy for OWNER after acceptance and approval This is the Orig. 1st 2nd 3rd «ith 5th 6th -X2L. ^ Sheet 5 of 3 LONG FORM PROPOSAL AND CONTRACT SQUIRES DAM PIEZOMETER INSTALLATION QUALIFICATIONS Our firm has four divisions , each staffed by highly trained specialized per- sonnel. These divisions are: 1) Geological and Subsurface Investigations, 2) Soil and Rock Mechanics Laboratory, 3) Engineering Analysis and Recommenda- tions, and 4) Construction Control and Inspection. The scope of services includes: 1. Engineering and Geological Site Reconnaissance 2. Detailed Geological Mapping and Studies 3. Subsurface Exploration and Sampling 4. Field Testing 5. Soil and Rock Mechanics Laboratory Testing 6. Engineering Analyses and Recommendations 7. Special Engineering and Geological Problems Investigations 8. Construction Inspection and Control 9. Earth Structure and Foundation Design, Drawings, and Specifications 10. Foundation and Embankment Instrumentation and Performance Studies One of our major fields of specialization is earthdam embankment instrumentation, which includes design, installation, data reading and data analysis. Among the large installations recently made in California under the direct super- vision of members of our staff are the piezometer installations for the Lake Mathews Dam and Dike near Riverside, and the Mammoth Pool Dam on the San Joaquin River near Fresno. All phases of the piezometer work for these projects were under the direction of Mr. W. A. Wahler. This work was done for the Metropolitan Water District of Southern California and the Southern California Edison Company, respectively. Other piezometer installations include the Swift Creek Dam in Washington State. This dam was the highest earth fill dam in the world at the time of the in- stallation, and is now the second highest: Trinity Dam in California is presently the highest earth fill dam in the world. SOIL MHCIiANK'r .mJ FOUNDATION HNGINHORS, Inc. -2- We would be happy to furnish additional data relative to our qualifications in earthdam instrumentation if it is required. PROPOSAL We propose to make the piezometer installation shown on the Embankment Instru- mentation Drawing of the plans and specifications prepared for Squires Dam by Boyle Engineering, either for the lump sum of $4,500.00 or on a time and materials basis. The cost estimate for the installation of the piezometer system is presented on Tables A and B, attached. If the lump sura method is chosen, one-third of the total amount of the con- tract will be due 15 days after completion of each separate installation, of which there are three. If time and materials method is chosen, monthly invoices will be submitted and payment will be due within 15 days thereafter. If the above proposal meets your approval, and you wish us to make the installa- tion, please cross out the inapplicable cost basis, listed below, sign one copy and return it to our office, and send one copy to Boyle Engineering in San Diego. We will then make the installation as shown on the drawings and to the satisfaction of the State Department of Water Resources, Super- visor of Dams. Cont method of payment--lump sum / SOIL MECHANICS and FOUNDATION ENGINEERS, Inc. William A. Wahler President SOIL MI:C1!AN1C> ami FOUNDATION ENGINEERS, Inc. TABLE A SQUIRES 0AM PIEZOMETER INSTALLATION LIST OF MATERIALS AND ESTIMATED COST No. 1 2 3 4 5 6 7 8 9 10 Item Piezometer tubing Piezometer tips Nondisplacement valves Shutoff valves r Pressure gauges Male quick connections Brass and copper tubing and fittings Steel boxes and posts Fabrication of Piezometer boxes Supervision, layout, designs, purchase etc. TOTAL MATERIALS Amount 7,000 11 24 36 11 6 Est. 3 3 », Approximate Unit Cost ft. $ 20 100 100 Estimated Cost $ 700 220 120 70 50 10 100 300 300 250 $2,120 All materials at cost. All design, layout, fabrication, purchase time at $8.50 per hour. TABLE B SQUIRES DAM PIEZOMETER INSTALLATION INSTALLATION LABOR COST ESTIMATE (This estimate covers three separate installations.) No. 1 2 3 4 5 6 7 Item Trench excavation a. Labor b. Trenches c. Supervision* Place sand and fine grained bedding materials as applicable a. Labor b. Material Co Supervision* Install piezometers and tubes a. Labor b. Supervision* Backfill trenches a. See contract specifications for dam b. Supervision* Install piezometer boxes a. Connections, saturation* etc. b. Use of special portable equipment to fill piezometer system* Supervision, layout, planning* Transportation and miscellaneous costs TOTAL Amount 60 hrs 6 days 30 hrs 60 hrs 20 cy 30 hrs i 30 hrs 30 hrs 30 hrs 30 hrs 3 20 hrs Approximate Unit Cost $3.00/hr 3 5 /day 8.50/hr 3.00/hr 5.00/cy 8.50/hr 3.00/hr 8.50/hr 8.50/hr 8.50/hr 30/ea 8.50yhr est. Estimated Cost $ 180 210 . 255 180 100 255 90 255 255 255 90 170 200 $2,495 Note: all items marked (*) would be furnished by Soil Mechanics and Foundation Engineers, Inc. All other items would be done by others, Soil Mechanics and Foundation Engineers, Inc., arranging for the work to be done and supervising the work. This work to be charged for at cost. Above estimate is based on making the installation in three steps, one for each terminal box. Supervision listed above includes all special technical services in addition to direction of work including arranging and preparing materials, tagging tubes, organizing and planning installation, obtaining and working with labor, to be provided by qualified instrumentation engineers. SOIL MECHANIC:? and FOUNDATION ENGINEERS, Inc.