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Home My WebLink About2757 INVERNESS DR; ; CB960201; PermitBUI L D I N G PE,,R M I T. Permit No: CB960201 03/06/96 14:54 Proéct:No: A9600307 I Page 1 of 1 Development No: Job Address: 2757 INVERNESS DR , Suite: Permit Type: RESIDENTAL ADD/ALT 6393 03/06/96 0001 01 ' 02 Parcel No: 208-1-11-27-00 Lot#: - CP 654-06 Valuation: 80,018 - Construction Type: 'kTN Occupancy Group: Reference#.: Status: ISSUED Description: 756 SF ROOM ADD+ 407 SF GAR AD . Applied: 02/05/96 - * . Apr/Issue: '03/06/96 Entered By:. RMA Appl/Ownr : B.A. WORTHING INC 619-729-3965 -' P.O. B09-1041 , .CARLSBAD,CA 92018' . Fees Required *"** si4ted & Credits i-----------: "1 Tta1 Fees: .1,01/. 00 Total Pay(.: \ 360:00 w Be4e6 \: 654.00 Fee description .. i'ts 'çeL..it\ Ext fee Data BuildiPg Permit 55,4-.00 Plan Check' 360.00 'Strong Motion,Fee. 8.00 AL 20 00 Each Plumbing Fixturkor Tra 00 'Each Install/Repair W ter Line' 7.00 7. Gas,Pi,ping System,. 1 7.00 7.00 * PLUMBING TOTAL . ' INCORPORATED 41.00 . Enter '-Y t for Electric i'sue Fe 1952 10.00 Y Enter "Y" for Remodel c-4\\ . 10.00 ELECTRI'CAL TOTAL 00 Eer'Y'for1ecianicalIe FeOt . . 1500 y : Install Furn/Ducts/Heat Pumps > 1,9 00 9.00 Each,Install Fireplace > 1 6.50 6.50 * MECHANICAL TOTAL -. . - 31,00 '- • , •. -- - - . . . .. • I - FMIAVAPPROVAL 1 NSP41__..DATE_Ø/-'i" [CLEARANCE CITY OFCARLSBAD . -1161 - 2075 Las'Pahas Dr., Carlsbad, CA 92009 (619) 438 . . 73 PERMIT APPLICATION '. - -"-r"---, -". •------ . - City of-CarLsbad BuiLding Department.. • 2075 Las PaLmes Dr,'CarLsbad, CA.92009 (619) 438-1161 - - From List I (see back) give code of Permit-Type: 'R' - •' - PLAN CHECK NO. PLAN CKI VALID. BY For Residential Projects Only: From List 2 (see back) give Code of Structure Type 876 02/05/96 0001 01 02 360 00 Net Loss/Gain of Dwelling Units - ... . '•- . 2. PROJECT INFORMATION . . I -. .- FOR OFFICE USE ONLY, Address Building or Suite No. 275-7 - Nearest Cross Street - . . - . - - . . .. . - - • LEGAL DESCRIPTION Lot No. Subdivision Name/Number, -. - Unit No. . Phase No. CHECK BELOW IF SUBMITFED: . i E2 Energy Calcs 2 Structural Calcs 02 Soils Report 0 1 Addressed Envelope - ASSESSOR'S PARCEL .---- - - - EXISTING USE PROPOSED USE .• - DESCRIPTION OF WORK it SQ. FT. 75 LPs - 40740 #OF STORIES 2_ . - # OF BEDROOMS . # OF BATHROOMS 3., (UN IAL.'i POISON (ii different trofn applicant), . - . . * . .. . . - . - ., NAME (last name first) - ADDRESS CITY • STATE ZIP CODE DAY TELEPHONE APPLICANT- NcONIRACIUR 'DAGENI' FOR CONTRACTOR -DOWNER DAGENT FOR, OWNER • -•.. - . - - NAME (last name first) WORTHING, B.A. ADDRESS P.O.,BOX 1041 CITY CARLSBAD ,. STATECA ZIP CODE 920.18 - DAY TELEPHONE 729-3965 PROPERTY OWNER- ... ' NAME (last name first) . D(* ve-f- Lgijr1e 447J)DREss 17,57 vecrJP9 CITY . . - " STATE ZIP CODE - si DAY TELEPHONE (X)NTRACFOR . , '- NAME (last name first) WORTHING, INC. B.A. ADDRESS P.O. BOX 1041' CITY CARLSBAD STATE CA ZIP CODE 92018 DAY TELEPHONE 729-3965 STATE UC.# 398764 LICENSE CLASS B—i CITY BUSINESS UC.# 549200 DESIGNER NAME (last name first) WORTHING B . A. ADDRESS P. 0. BOX 1041 - - CITY CARLSBAD. STATE CA ZIP CODE 92018 DAYTELEPHONE729396.5STATELIC:# B1 392894 WORKERS' COMPENSATION . ' - Workers' Compensation Declaration: I hereby affirm that I have a certificate of consent to self-insure issued by the Director of Industrial Relations, or a certificate of Workers' Compensation Insurance by an admitted insurer, or an exact cojy or duplicate thereof certified.. by the Director of the insurer thereof filed with the Building Inspection Department (Section 3800, Lab. Q. INSURANCE COMPANY STATE FUND - . POLICY No. 229-6537 EXPI ATIO DATE i/,96 . .. Certificate of Exemption: I certify that in the performance of the work for which this permit is issued, I sha nomploy any person in any manner - so as to become subject to the Workers' Compensation Laws of California. SIGNATURE DATE • -I OWNER-BUILDER DECLARATION . Owner-Builder Declaration: I hereby affirm that 1-5'm exempt from the Contractor's License Law for. the following reason:. I, as owner of the property or my employees with wages as their sole compensation, will do the work and the structure is not intended or offered for sale (Sec. 7044, Business and Professions Code: The Contractor's License Law does not apply to-an owner of property who builds or improves thereon, and who does such work himself or through his own employees, provided that such improvements are not intended - or offered for sale. If, however, the building or improvement is sold within one year of complétion,the owner-builder will have the burden of proving that he did not build or improve for the purpose of sale.). - ' - 0 1, as owner of the property, am exclusively contracting with licensed contractors to construct the project (Sec. 7044, Business and Professions - -Code: The Contractor's License Law does not apply to an owner of property who builds or improves thereon;and contracts for such projects with contractor(s) licensed pursuant to the Contractor's License Law).,. 1 am exempt under Section Business and Professions Code for this reason: . (Sec. 7031.5 Business and Professions Code: Any City or County which requires a permit to construct, alter, improve, demolish, or repair -. any structure, prior to its issuance, also requires the applicant for such permit to file a signed statement that he is licensed pursuant to the provisions of the Contractor's License Law (Chapter 9, commencing with Section 7000 of Division 3 of the Business and Professions Code) or that he is exempt therefrom, and the basis for the alleged exemption. Any violation of Section 7031.5 by any applicant for a permit - subjects the applicant to civil penalty of not more than five hundred dollars [$5001). - - ' SIGNATURE DATE .. . COMPLETE THIS SECTION FOR NON-RESIDENTIAL BUILDING PERMITS ONLY: Is the applicant or future building occupant required to subrit a business plan, acutely hazardous mterials 'registration form or risk 'managment'and prevention program under Sections 25505, 25533 or 25534 of the Presley-Tanner Hazardous Substance Account Act? - DYES - ONO ........... - — .-. * Is the applicant or future building occupantrequired to obtain a permit from the air pollution control district or air quality management district? . 0 YES .,D.NO . '... . ' '•.- . . . . . . ' - Is the facility to be constructed within 1,000 feet of the outer, boundary of a school site? DYES '0 NO - IF ANY OF THE ANSWERS ARE YES A FINAL CERTIFICATE OF OCCUPANCY MAY NCYF BE ISSUED AFTER JULY 1, 1989 UNLESS THE APPLICANT - HAS MET OR IS MEETING THE REQUIREMENTS OF THE OFFICE OF EMERGENCY SERVICES AND THE AIR POLLUTION CONTROL DISTRICT. '9. - WNSTI4UC liON LENDING AGENCY I hereby affirm that there is a construction lending agency for the performance of the work for which this permit is issued (Sec 3097(i) Civil Code). LENDER'S NAME ' - LENDER'S ADDRESS - - -10. APPLICANT CEI{flFICA110N - . - . . - . ..- - -. -. -. I certify that I have read the application and state that the above information is correct. I agree to comply with all City ordinances and State laws relating to building construction. I hereby authorize representatives of the City of Carlsbad to enter upon the above mentioned property for inspection purpose. I ALSO AGREE TO SAVE INDEMNIFY AND KEEP HARMLESS THE CITY OF CARLSBAD AGAINST ALL LIABILITIES, JUDGMENTS, COSTS'. AND EXPENSES WHICH MAY IN ANY WAY ACCRUE AGAINST SAID CITY IN CONSEQUENCE OF THE GRANTING OF 11115 PERMIT. - -. 0511k An OSHA permit is required for excavations over 5'0" deep and demolition or construction of structures over 3 stories in height: Expiration. Every-permit issued by the Building Official under the provisions of this Code shall expire by limitation and become null and void if the building or work authorized by such permit is not commenced within 365 days from the date of such permit or if the building or work authorized by' such permit is suspended or abandoned at any time after the wo k is commenced for a rind of 180 days (Section 303(d) Uniform Building APPLICANTS SIGNATURE - . - s444jjJ4,. . DATE: _____ - WHITE: File YELLOW: Applicant Finance - CITY OF CARLSBAD INSPECTION REQUEST PEPNIT# CB960201 FOR 08/26/96 INSPECTOR-AREA PD :DESCRIPTION:' 756 SF ROOM ADD+ 407 SF GAR AD PLANCK# CB960201 CCC GRP TYPE: PAD CONSTR. TYPE VN JOB ADDRESS: .2757 INVERNESS DR STE:, LOT: APPLICANT: B.A. WORTHING INC PHONE: 619-729-3965 'CONTRACTOR: ' PHONE: OWNER: PHONE: EMARKS: NW/GAIL/729-3965 ' INSPECTOR / SPECIAL INSTRUCT: I 4 TOTAL TIME CD LVL DESCRIPTION ACT COMMENTS -19,,. ST Final Structural .29. PL Final Plumbing 39, ' EL' Final.Electrical 49. ME Final Mechanical ***** INSPECTION HISTORY ***** 4 DATE DESCRIPTION ACT INSP COMMENTS 073096 .Final Combo , CO PD 071796 Sewer/Water Service AP PD '071596 Sewer/Water Service , CO PD 071196 Sewer/Water Service NR PD . 060496 Gas/Test/Repairs CO PD .060496 Interior Lath/Drywall AP PD -. - -053096. Interior Lath/Drywall AP PD . 053096 Exterior Lath/Drywall AP PD 052396. Insulation . . - . AP PD .052396 Róugh.Combo ' AP PD 052096 'Frame/Steel/Bolting/Welding CO DC OK TO INSUL PND 2 FRAME CORN 051696 Rough Combo - CO PD '.050896 Shear,..Panels/HD's AP PD OK TO WRAP ,050696 Shear Panels/HD's CO PD NOT COMPLETE S . 050396 "Rough Combo' , - S CO PD • 042596 Roof/Reroof AP, PD 042596 Service Change/Upgrade AP PD '. 042396' Roof/Reroof CO PD ON CARD 040296 ,Ftg/Foundation/Piers AP PD 040196 Ftg/Foundation/Piers .CO PD, -O32996'Underground/tJnder Floor PA PY ND CLN. OUT FRM HLD/CTY..LAT Enclosures: El PC 2/21/96 trnsmtl.dot - EsGul Corporation Professional Plan Review Engineers .DATE: February 27, 1996 0 ANT-42 - - IVN U FIRE - JURISDICTION: Carlsbad EVIEWER :. U FILE 1PLANCHECK NO.: 96201 SET: II %PROJECT ADDRESS: 2757 Inverness Drive PROJECT NAME SFD Addition for Drs Steve & Laurie Saltz The plans,transrnitted herewith have been corrected where necessary and substantially comply with the jurisdiction's **.********* codes - • The plans transmitted herewith will substantially comply with the jurisdiction's building codes - when minor deficiencies identified below are resolved and checked by building department staff. ,.,: . -- -• The plans transmitted herewith have significant deficiencies identified on the enclosed check list and should be corrected and resubmitted for a complete recheck The check list transmitted herewith is for your information The plans are being held at Esgil - Corporation until corrected plans are submitted for recheck The applicant's copy of the check list is enclosed for the jurisdiction toforward to the applicant contact person -- -:- The applicant's copy of the check list has been sent to Esgil Corporation staff did not advise the applicant that the plan check has been completed 1'ElF EsgilL Corporation staff did advise the applicant that the plan check has been completed Person contacted Date contacted (by ) Telephone # S REMARKS Have the applicant sign the city stamp on the plans agreeing to secure an updated soils report if the inspector detects problems . By: Abe Doliente - Esgil Corporation - • LI GA LII CM II] GP •• 9320 Chesapeake Drive Suite 208 • San Diego California 92123 • (619) 560-1468 • Fax (619) 560-1576 a . - s il corporation Professtona( Plan Review ngtneers DATE: February 14, 1996 U APPLICANT - U FIRE 'JURISDICTION: Carlsbad U'PtAN REVIEWER UFILE .PLAN CHECK NO.: 96-201 SET:! PROJECT ADDRESS 2757 Inverness Drive PROJECT NAME: SFD Addition for Drs. Steve & Laurie Saltz Tle plans transmitted herewith have been corrected where necessary and substantially comply With the jurisdiction's *********** codes The plans transmitted herewith will substantially comply with the jurisdiction's ********** codes - when minor deficiencies identified below are resolved and checked by building department staff. The plans transmitted herewith have significant deficiencies identified on the enclosed check list and should be corrected and resubmitted for a complete recheck -. -U The check list transmitted herewith is for your information. The plans are being held at Esgil Corporation until corrected plans are submitted for recheck. The applicant's copy of.the check list is enclosed for the jurisdiction to forward to the applicant contact person.' 4 The applicant's copy of the check list has been sent to ' B. A. Worthing P 0 Box 1041, Carlsbad, CA 92018 U Esgil Corporation staff did not advise the applicant that the plan check has been completed Esgil Corporation staff did advise the applicant that the plan check has been completed Person contacted: Date contacted (by ) Telephone # REMARKS By: Abe Doliente Enclosures: - Esgil Corporation GA Ij CM fl GP n PC 2/6/96 trnsmtl dot 9320 Chesapeake Drive Suite 208 • San Diego California 92123 • (619) 560-1468 • Fax (619) 560-1576 -. - - '--• I-' - t - . Carlsbad 96-201 - February 14, 1996 : PLAN REVIEW CORRECTION LIST SINGLE FAMILY DWELLINGS AND DUPLEXES - FOREWORD (PLEASE READ) This plan review is limited to the technical requirements contained in the Uniform Building Code, Uniform Plumbing Code, Uniform Mechanical Code, National Electrical Code and state laws regulating energy conservation, noise attenuation and access for the disabled., This plan review '---is based on regulations enforced by the Building Department. You may have other corrections based-on laws and ordinance by the Planning Department, Engineering Department, -Fire T. Department or other departments. Clearance from those departments may be required prior to - the issuance of a building permit Present California law mandates that residential construction comply with Title 24 and the . following model codes: 1994 UBC (effective 12/28/95), 1994 UPC (effective 12/28/95), 1994 UMC (effective 2/23/96) and 1993 NEC (effective 12/28/95). The above regulations apply to residential construction, regardless of the code editions adopted' ,. by ordinance. - . - The following items listed need clarification, modification or change. All items must be satisfied before the plans will be in conformance with the cited codes and regulations. Per Sec. 106.4.3, 1994 Uniform Building Code, the approval of the plans does not permit the violation of any - state, county or city law : :-To speed up the recheck- process, please note on this list (or a copy) where each /. correction item has been addressed, i.e., plan sheet number, specification section. etc.' Be sure to enclose the marked up list when you submit the revised plans I LIST NO. 1; GENERAL SINGLE FAMILY DWELLINGS AND DUPLEXES WITHOUT SUPPLEMENTS (1994 UBC) r3forw.dot . '- - 4 I . Carlsbad 96-201 February 14, 1996 Please make, all corrections on the original tracings and submit two new sets of prints, to: Esgil Corporation, 9320 Chesapeake Drive, Suite 208, San Diego, California 92123, (619) 560-1468 orto the jurisdiction's building department. Plans, specifications and calculations shall be signed and sealed by the California state licensed engine'er or architect responsible for their preparation, for plans deviating from conventional wood frame construction. Specify expiration date of license (California Business and Professions Code) 3 ... Provide a statement on the Title Sheet of the plans that this project shall comply 'I with Title 24 and the 1994 UBC, UMC and UPC and the 1993 NEC. 4. . Show locations of permanently wired smoke detectors with battery backup: a) When sleeping rooms are upstairs, at the upper level in close proximity to .,.' . the stair. 5 Show the size, location and type of all heating and cooling appliances or systems 6 Have the applicant sign the city stamp on the plans agreeing to secure an updated soils report if the inspector detects problems . MISCELLANEOUS -' 7. Show FB-4 (4 X 12 DF# 1) as called out on sheet 5 of the structural calculations. Refer to sheet 4 of the plans Include shear wall type 7 in the shear wall schedule , '. 9.' Show the required hold down (HD2A) for the shear walls along grid line 2 as called out in the structural calculations. Simpson HD2 is no longer available. i0. 4 - Show the floor diaphragm as required in the structural calculations. Ii. - ,Toêpeed up the review process, note on this list (or a copy) where each correction item has been addressed, i.e., plan sheet, note or detail number, calculation page, etc 12. ' Please indicate here if any changes have been made to the plans that are not a result of corrections from this list If there are other changes, please briefly describe them and where they are located in the plans . Have.changes been made to the plans not resulting from this correction list?, • - Please indicate: ..• . Carlsbad 96-201 February 14, 1996 . Yes El No U 13 The jurisdiction has contracted with Esgil Corporation located at 9320 Chesapeake Drive, Suite 208, San Diego, California 92123; telephone number of 619/560-1468, to perform the plan review for your project If you have any questions regarding these plan review items, please contact Abe Dohente at Esgil Corporation Thank you 1. ... - -'-4 :- I -. J... I * .. - - . * . - - . p -- C. - .• - - - * , 'C- - f - C •. * . * - - - 4 , Carlsbad 96-201 February 14, 1996 VALUATION AND PLAN CHECK FEE JURISDICTION: Carlsbad PLAN CHECK NO.: 96-201 PREPARED BY: Abe Doliente DATE: February 14, 1996 BUILDING ADDRESS 2757 Inverness Drive BUILDING OCCUPANCY R-3/U-1 - TYPE OF CONSTRUCTION V-N BUILDING PORTION • BUILDING AREA (sq. ft.) VALUATION MULTIPLIER VALUE ($) Dwelling Addition 756 SF per city Garage Addition 407 SF per city : Air Conditioning ' Fire Sprinklers TOTAL VALUE per city 80,018 $ 554.00 -'.. .• $ 360.10 Sheet of 1 valuefee.dot UBC Building Permit Fee: UBC Plan Check Fee: " Comments: ESGIL FEE = 0.80 X 360.10 = $ 288.08 .: - -: - *1 I 4 . - -•-• -; '4 - V' •V Vt, _ City of Carlsbad BUILDING PLANCHECK CHECKLIST PLANCHECKNO.CB 7O/ Y BUILDING ADDRESS: ,. 967 V' PROJECT DESCRIPTION: --ASSESSOR-S PARCEL NUMBER: J' - EST. VALUE _?4 6 Ic? .•. •4 • 4. ENGINEERING DEPARTMENT . DENIAL j I L r APPROVAL please see the attached report of deficiencies marked The Item you have submitted for review has been with Q Make necessary corrections to plans or' "4 ' approved. The approval is based on plans, information specifications for compliance with applicable codes and and/or Specifications provided In your submittal; therefore standards. Submit corrected plans and/or specifications any changes to these Items alter this date, including field to this office for review. modifications, must be reviewed by this cce to unsure continued conformance with applicable codes. Please - review carefully all comments attached, as failure to V - comply with instructions In this report can result In By: Date:_______ V suspension of permit to build. I • .. V O -- A - 4 - ARight-ol-Waypermitisrequiradp.lortoconatructlon By: Date:_______ . of the following improvements: By: Date:_____ '. V - :* •''r. • •.. : V V 4, •,..VV - . . -z: ' i: FOR QFFICIAL. USE ONLY ENGINERING M HVRI2A1lOfflOJSSUE JILDING PMT ATTACHMENTS ENGINEERING DEPT CONTACT PERSON 0 Dedication A4I(II1jIIO1I V V V Ded C3udft V C3 improve, w AppillcOm \. . ImprovenierIt Checldl NAME 1) 0 Future Improvement Agreement City Carlsbad 0 Grading Permit Application • ADDRESS: 2075 Las Paimà Dr., Carlsbad, CA 92009 0 Grading Sm ec .. PHONE: (619) 438.1161, Ext. DRJ Way Permit AppJo V . ORip Pam* SubmlUalceck1Ia V 'and Information Sh.at V 0 Sewer Fe. Information Shoot A-4 V •V4J VL 0C$CHIUJT00O1PRM V RV 06/1114 .2075 Las Palmas Dr.. Carlsbad, CA 92009-1576 • (619) 438-1161 • FAX (619) 438-0894 . . BUILDING PLANCHECK CHECKLIST 1•. SITE 1st,'3rd' [Y1 .0 0 1. Provide a fully dimensioned site plan drawn to scale. Show: '- .,- .. ••4 , -. A. North Mow D. Property Lines Easements B Existing & Proposed Structures E Easements C. Existing Street Improvements F. Right-of-Way Width & Adjacent Streets Cl 2 Show on site plan A Drainage Patterns C Existing Topography • B Existing & Proposed Slopes 4 0 3 Include note "Surface water to be directed away from the building foundation at a 2% • gradient for no less than 5' or 2/3 the distance to the property line (whichever is less) [Per 1985 UBC 2907(d)51. On graded sites, the top of any exterior foundation shall extend above the elevation .. of the street gutter at point of discharge or the inlet of an approved drainage device a minimum of 12 inches plus two percent' (per 1990 USC 2907(d)5) - . - •• . * (' D Cl 4 Include on title sheet - A. Site address B. Assessor's Parcel Number C Legal Description : Forcommerclal/lndustrlal buildings and tenant improvement projects, Include: Total building square footage with the square footage for each different use, existing sewer permits showing square footage of different uses (manufacturing, warehouse, office, Iry etc) previously approved EXISTING PERMIT NUMBER DESCRIPTION • • • 4, * a • • : 41. . ••*• 0 ':4 .-- - - • 4- • 4 -* - * - - i •. - 4, •. - . • 1. 4, - • •.•,-•r • •4. • -. - - • - • v BUILDING PLANCHECK CHECKUST - DISCRETIONARY APPROVAL COMPLIANCE 1 sty' 2ndv' 3rdv' O 0 -, 0 S. Project does not comply with the following Engineering Conditions of a p p r o v a l f o r - Project No. Conditions were compiled with by: Date:_________________ D 0., 0 DEDICATION REQUIREMEN % TS 6. Dedication for all street Rights-of-Way adjacent to the building site and any storm drain or utility easements on the building site is required for all new buildings and for remodels with a value at or exceeding $ -pursuant to Code Section - - 18.40.030 Dedication required as follows - •, •' - • Attached please find an application form and submittal checklist for the dedication, process. Provide the completed application form and the requirements on the checklist at the time of resubmittal. -:. - Dedication completed by Date:_________ •• IMPROVEMENT REQUIREMENTS O 0 0 Ta. All needed public Improvements upon and adjacent to the building site must be constructed at time of building construction whenever the value of the construction - - exceeds $ -pursuant to Code Section 18.40.040. Public improvements required as follows: : .-;,' • - •4 • ,. - - Please have a registered Civil Engineer prepare appro p r i a t e i m p r o v e m e n t p l a n s a n d submi them together with the requirements on the attached ch e c k l i s t f o r a separate planchsck process through the Engineering Department Improvement plans must be - • .•. appropriate securities posted and fees paid prior to issuance of pr Attached please And an application form and submittal checklist for the public • improvements requirements. Provide the completed application form and the .• requirements on the checklist at the time of resubmittal. r Improvement Plans signed by Date - 4.. • PDOCc*IKL$1\ePOOO1.ffiN Pop 24 RVO6flh/$4 - BUILDING PLANCHECK CHECKLIST lb. Conemicilon of the public Improvements may be deferred pursuant to code Section - 18.40 Pluee submit a recent property title report or current grant deed on the property and processing lee 01$ so we may prepare the necessary Future Improvement Agreement. Thi s a g r e e m e n t m u s t b e signed, notarized .,. and approved by the City prior to issuance ofaBuil d i n g P e r m i t . Future public improvements required as follows : Improvement Plane signed by: - Date:__________ 0 0 Enclosed please find your Future Improveme n t A g r e e m e n t . P l e a s e r e t u r n s i g n e d and notarized Agreement to the Engineering Depa r t m e n t . Future Improvement Agreement completed by Date:_________________ 0. 0 No Public Improvements required. SPECIAL N O T E : Damaged or defecthe- -: improvements found adiacent to buildina site must be repaired to the satisfaction of • the City Inspector prior to occupancy. 4 GRADING PERMIT REQUIREMENTS The conditions that invoke the need for a grading permit are found in Section 11 06 030 of the Municipal Code. 0- 0 0 8a. Inadequate information available on Site Plan to make a determination on grading requirements. Include accurate grading quantities (cut, fill import, export). 0 0 0 8b Grading Permit required A separate grading plan prepared by a registered Civil Engineer must be Submitted together with the completed application form attached. NOTE The Grading Permit must be Issued and rough aradina approval obtained prior - to issuance of a Building Permit. -.:'- / - • Graft kiapector sign off by Date 5Z" 0 0 Sc No Graft Permit required --•••;' F • .4 * : 4 . - • - .4 a • . • ...--.--• F PDOc$\c*4Ia.$1\aPoOO1.,M Pop 3i4 BUILDING PLANCHECK CHECKLIST MISCELLANEOUS PERMIT 3rdf L1 0 0. 9. A RIGHT-OF-MY PERMIT is required to do work in City Right-of-Way and/or private work adjacent to the public Right-of-Way. Types of work include, but are not limited to: street improvements, trees, driveways, tieing into public storm drain, sewer and water utilities. Right-of-Way permit required for - • L_1...-rs (j c./LA- L* -... j A separate Right-of-Way permit Issued by the Engineering Department is required for the following 0 10 A SEWER PERMIT is required concurrent with the building permit issuance The fee is noted in the tees section on the following page 0 ii. INDUSTRIAL WASTE PERMIT is required. Applicant must complete Industrial Waste Permit Application Form and submit for City approval prior to issuance of a Permit. - Industrial waste permit accepted by: Date Pwocsc*au.si\.P000i. Pop 44 . R!VOS/I1/W PLANNING DEPARTMENT • ' BUILDING PLAN CHECK REVIEW CHECKLIST Plan Check No. CB f4- f 'Address' 0 7f7 /A1wS b. Planner Van Lynch Phone (619) 438-1161 et. 4325 • (Name). APN 28-((/-Z7-cc7 Type of Project and Use 12P. i Zone P C— Facilities Management Zone 7 CFD (il)fl11t)) #_____________________ (If property in, complete SPECIAL TAX CALCULATION WORKSHEET provided by Building Department) Legend >. >. , > Item Complete Item Incomplete - Needs your action Eic,ronmentaI Review Required YES NO I2( TYPE DATE OF COMPLETION:'- I 'Coripliance with conditions of approval? If not, state conditions which require action. qonditions of Approval • 0 Discretionary Action Required YES NO )< TYPE APPROVAL/RESO NO DATE 41 PROJECT NO OTHER RELATED CASES 'Compliance with conditions or approval? If not, state conditions which require action.' Conditions of Approval EY"i 0 California Coastal Commission Permit Required YES NO ' , DATE OF APPROVAL ' , San Diego Coast District, 3111 Camino Del Rio North, Suite 200, San Diego, CA 92108 S. • (619) 521-8036 5 5 Compliance with conditions of approval? If not, state conditions which require action Conditions of Approval 5.- - - S• S • S - Inclusionary Housing Fee required: YES NO N (Effective date of Inclusionary Housing Ordinance -'May 21, 1993) * Site Plan 1121" 0 0 1 Provide a fully dimensioned site plan drawn to scale Show North arrow, property lines, easements, existing and proposed structures,' streets, existing street, improvements, right-of-way width, dimensioned setbacks and existing topographical'! lines. - - ) - - £"D 0 2 Provide legal description of property, and assessor's parcel number 4 --v- Zoning 1 Setbacks Front Required 2_c' Shown ?c ' Int. Side— Required Shown (O' Street Side: Required —: Shown Rear: Required 2-0 ' Shown 0 2 Lot Coverage ' Required - Shown 0 3 Height Required 3(.2'- Shown ib 0 4 Parking Spaces Required 2_— Shown Guest Spaces Required __________ Shown 0 0 0 ,- AdditionalL Comments >' OKTOISSUE AND ENTEREDAPPROVAL INTO COMPUTER 1" 44v2_ DATE Z~/96' - 4 - - -c'.- ••-_ .-., - --:-j.' - 4 +_• - - .. a_ , • - - - !.__14 I • - - '4 -- 1. •- $ _4._ - - •: K\ADMIN\COUNTER\PLANCKFRM 11796 CERTIFICATION OF COMPLIANCE CITY OF CARLSBAb Plan Check No.qg/) L/ DEVELOPMENT PROCESSING SERVICES DIVISION 2075 LAS PALMAS DR., CARLSBAD, CA 92009 - (619) 438-1161 * This form shall be used to determine the amount of school fees for a project and to verify that the project applicant has complied with the school fee requirements. No building permits for ,the projects shall be issued until the certification is signed by the appropriate school district and returned to the City of Carlsbad Building Department. SCHOOL DISTRICT: Carlsbad Unified San Marcos Unified 801 Pine Avenue ? 1290 West SanMars Blvd.. . Carlsbad, CA 92009 (434-0610). - San Marcos, CA 92024 (744-4776) Encinitas Union San Dieguito Union High School 101 South Rancho Santa Fe Rd. 710 Encinitas Boulevard .Encinitas, CA: 92024 (619) 944-43O Encinitas, CA 92024 (753-6491) • Project Applicant:. S)/if APN: hi - Oh Projet Address:. 757-_'V<r_DF - ,:., ;' *•, Ab RESIDENTIAL-* SQ. FT. of living area 7S number of dwelling units____________ SQ. FT. of covered area SQ. FT. of garage area 07 COMMERCIAL /I STRIAL: SQ. FT. AREA______ Prepared hy __________________ ____________ Date -------------------------------------------------------- EE CERTIFICATION - (To be completed by the School District) Applicant has complied with fee requirement under Government Code 53080 -Project is subject to an existing fee agreement Project is exempt from Government Code 53080 Final Map'approval and construction started before September 1, 1986. - (other school fees paid) - -• _Other - L-.-- Resudentl3l Fee Levied: $ 13/_OLI___Las3d or 75' _- sq ft @ ndu j'9 $ based on sq.ft @________________ ---4' ;e,-~evjecl: 1.fti# Assistant Superintendent - j Business Services 03/06/96 Scho.gi'District Official// Title - Date - . -• e - - , • L -AB 2926 and SB 201 are capped at $1.'72 per square foot for residential. AB 2926 us capped at 28 per square foot for commercial /industrial. - • - - - -. \ • .- :4 '- • • - .- • City of Carlsbad SCHOOL FEES Please fill out the form on the iéver&èThide of this page and take it to the appropriate school district. * Once youhave paid the school fee, a school official has signed the.school fee form, and all other plan check requirements have been met, .a building permit can be issued. The City of Carlsbad will,not isue any building permit without a completed school fee form. 4 . r - BUILDING DEPARTMENT - dc - enc. .. - 4 - A '• ., . - * ' 1,' • • - 4 - 2075. Las Palmas Drive-Carlsbad, California 92009-4859•(619) 438-1161 I - 1550 Hotel Circle San Doo 08rh Woodward.Clyde Consultants 6191 2949400 Fax: i6191293-7920 LiimR OF TRANSM1TAL - 117 TO r1 '& DA1_____________ , X,-,c )/9ic / PROJECrNO:_So :; I (, W r& ATTENTION: SUBJECT PROJECT:_ I'iAL,OG44vll '74 —12 iN ANSWER TO THE REQUEST OF:_S WE ARE TRANSM1TflNG: )" HEREWIH UNDER SEPARATE COVER .THE FOLLOWING I C c 1dI':~- 4f4' 'Jzo/a / FOR YOUR: . APPROVAL FILES COMMENTS INFORMATION -. - ____ DISTRIBUTION < USE - REMARKS: The data developed and conclusions and recommendations reached in this correspondence were for a specific project Additionally, we wish to advise you th= since this correspondence was issued, there have been substantial changes in the state of the an and the state of practice of the profession, as well as in the dcgreeof risk considered acceptable by society ' and profession Thus, the opinions, recommendations and conclusions contained herein may be invalid and must be re ? . evaluated. We recommend that you retain a qualified firm to do this before proceeding.with any plans which might be influenced by the contents of this correspondence. . PLEASE NOTIFY US IF ENCLOSURES LISTED ARE NOT RECEIVED. (J CONES TO Very truly yo By__________________ - Consulting Engineers. Geologists and Environmental Scientists •-' Offices in Other Principal Cities V V ________ayd.Consitib V V V V V _ V. V V V UPDATE GEOTECHNICAL INVESTIGATION V FOR THE PROPOSED V V V••V SLAKE CALAVERA HILLS V VV .,..,..TRACT- 76-12 V V V . CARLSSAD. CALIFORNIA - V., V prepared for: V V V V V Pacific Scene, Inc. . V V V 3900 Harney Street . V VV V V V V V San Diego. California 92110 V V V V. V V V Vi VVVVV V V LV V V V V •VV .........V V VV p - 34h K 'IV Woodward.Clyde COflSU1taI1tS 714 214 - 41- January 20, 1981 Project No. 50216W-5107 Pacific' acific Scene, Inc. 3900 Harney Street San Diego, California 92,110 Attention: Mr. Doug Nyst !fl UPDATE CEOTECHNICAL INVESTIGATION FOR THE PROPOSED LAKE CALAVERA HILLS TRACT 76-12 . * CARLSBAD, CALIFORNIA Gentlemen We are pleased to provide,the accompanying report, which presents the results of our updated geotechnical investi- gati.on fur the subject project.. The report presents our conclusions and reconu"endations pertaining to the prcject, as well as the results of our field explorations and labo- ratory tests. Our engineer and geologist assignedto this project are Messrs. Michael R. Rahilly and Robert J. Dowlen. respec- tively. If you have any questions, or if we can be of further service, please give us a-call. Very truly ycur WOODWARD-CLYDE CONSULTANTS 000 Richard P. While Daryl Streiff R.E. 21992 C.E.C. 1033 RpW/DS/MRR/RJD/rs Attachment (4) Pacific Scene, Inc . (2) Rick Engineering Company - S c0.5ua'q E'qr.e.s G*5als . . a Fnv.tw'Ua Sc.Th . . — S Project No 50216W-SIO7 Woodwa,d.C$yde Contaits TABLE OF CONTENTS - Pace PURPOSE OF INVESTIGATION 1 BACKGROUND INFORMATION 2 DESCRIPTION OF THE PROTECT 3 FIELD AND LABORATORY INVESTIGATIONS 4 SITE, SOIL. AND GEOLOGIC CONDITIONS 4 Geologic Setting 4 • Topography and Surface Conditions 5 Subsurface Conditions 6 Fill Soils 6 • Topsoil and Cultivated Topsoil • 6 Alluvium - - • .. -•, - Santiago Formation 7 Santiago Peak Volcanics • 8 Structure and Faulting 8 Ground Watr 8 DISCUSSIONS, CONCLUSIONS, AND RECOMMENDATIONS 9 Potential Geologic Hazards 9 t - Faulting and Ground Breakage 9 Liquefaction . 10 Landslides 10 -4 -4-- I 4 • 4 t •• - - • •. •-- - • •• • 1 . Project No. 50216W7SI07 * :. Wo TABLE OF CONTENTS - (continued) Page Ground -Water . 10 General Soil and Rock Conditions 12. - . Excavation Characteristics . 12 Slope Stability -, 13 Grading 15 Feundations 17 RISK-AND OTHER CONSIDERATIONS . 18 FIGURE 1 - SITE PLAN AND GEOLOGIC MAP -. APPENDIX A - FIELD INVESTIGATION - A-i FIGURE A-i - KEY TO LOGS . FIGURES A2 THROUGH A-6 - LOGS OF. TEST BORINGS FIGURES A-7 THROUGH A-12 LOTS OF TEST PITS APPENDIX B - LABORATORY TESTS •• B-i FIGURE B-i - GRAIN SIZE DISTRIBUTION CURVES FIGURE B-2 - FILL SUITABILITY TESTS APPENDIX C —SPECIFICATIONS FOR CONTROLLED FILL C-i APPENIDXO - GUIDE SPECIFICATIONS FOR SUBSURFACE DRAINS -D-1 •• --• - ... APPENDIX E --'OVERSIZE. ROCK PLACEMENT, ?JtEAS ' E-1 I • -- . I Project No. 50236W-5107 Wmd~d- Conus 4 UPDATE GEOTECHNICAI. INVESTIGATION 'FOR THE PROPOSED . LAKE CALPIVERA HILLS TRACT 76-12 CARLSBAD, CALIFORNIA This report presents the results of our update geotechnical investigation at the, site of the proposed Lake Calavera Hills Tract 76-12 residential subdivision. This report supercedes an earlier report by Soil, Geology, Testing" Consuitants, Inc. (SGT), dated January 28, 1977. The site is approximately 2 miles ..utheast of the intersection of Roue 78 Freeway and El Camino Real n the Calavera Hills area of Carlsbad, California. . . . -. PURPOSE OF INVESTIGATION The purpose of our investigation was to assist Pacific Scene, Inc., and their consultants in evaluating the propecty and in project design. This report presents our conclusions and/or recommendations regarding Potential geologic hazards, 'S •.'.-:. Excavation characteristics of subsurface materials. Site grading (ic1uding preparation of probable areas to receive fill). I Project No. 30216W-8107 Woodw Characteristics of probable fill materials. ' Presence and effect of expansive soils, Slopes, and - . Foundations. BACXGROUND INFORMATION For our study, we have discussed the project with Mr. Doug Nystrom of Pacific Scene, Inc., and we have been provided with topographic maps prepared by Rick Engineering Company, including: ' "Grading Plans For Calavera Hills, Carlsbad . . . Tract 76-12" (scale 1" 30'), dated October 30, 1977, ---.•- • OLake Calavera Hills Unit 1, Tentative Map and PUD Plan No. 4 of Carlsbad Tract. No. 76-12" (scale l 2001 ), latest revision dated December 14, 1976. In addition, we have reviewed applicable geologic and geotechnical data, including the-.following: ° "Report of Rough Grading Operations. Waste Water Treatment Facility, Calavera. Hills, Carlsbad. Cali- fornia." dated June 9. 1980, prepared by B.R.G. & Associates. Inc. . "boil and Geologic Investigation, 'Lake Calavera Hills, Unit No. 1, Tamarack Avenue, Carlsbad,. California." dated January 28, 1977 preparedby SGT. "Faulting in the Oceanside. Carlsbad, and Vista Areas, Northern San Diego County, California," dated 1975 by Dennis Hannan, in Studies on the Geology of Camp Pendleton, and. Western San Diego County, California, San Diego Association of Geologists - 2 Project No. 50216W-S107 L Geologic Map of a Portion of the San Luis Rey Quadrangle, San Diego County, California, dated 1972, by Kenneth L. Wilson, MS Thesis, University of California, Riverside. Faults and Special Studies Zones - Quad 7, Ocean- side, dated March 3, 1976, by Mapping Section, San Diego County Department of Transportation. Stereographic aerial photographs, AXN 4DD - 197, 198, Index Sheet No. 2, flown by Cartwright Aerial Surveys 1964 for USDA. DESCRIPTION OF THE PROJECT We undejstand that the proposed project will subdivide approximately 53 acres into 138 single-family residential lots. Ten additional acres on the site have been reserved for open space areas and a proposed school site. No specific investigations for these areas were made. We understand that the proposed construction will be limited to one- and/or two-story, wood-frame and stucco * residential strictures, supported on conti.uouà footings and having slab-on-grade floors. The available grading plans indic:te cut and fill slopes will have maximum heights of 30 feet and 60 feet, and maximum slopes inclinations of 2 to 1 (horizontal to.vertical) The project also includes improving Tamarack Aven..e from El Camino Real to the subdivision, a distance of approxi- mately one mile. 3- I Project No. 5C216W-S107 FIELD AND LABORATORY INVESTIGATIONS 40 Our field investilation, conducted between Novem- ber 18 and 26, 1980, included making, a visual geologic reconnaissance of the existing surface conditions, making two 'bu_ket auger borings and 16 backhoe test pits, and obtaining representative soil samples. The borings were advanced to depths of 32 feet and 80 feet, and the backhoe • pits were advanced to depths ranging from 3 feet to 12 feet., • : The locations of the test explorations are shown on Fig. 1. A Key to Logs is presented in Appendix A as Fig. V - A-1. Simplified logs-of the borings and test pits are presented in Appendix A as Figs. A-2 through A-12. The descriptions on the logs are based on field logs, sample inspection, and laboratory' test results. Results uf labo- ratory tests are shown at the corresponding sample locations on the logs and in Appendix B. The field investigation and. , V laboratory testing programs are discussed in Appendixes A and B. • V - - V SITE, SOIL. AND GEOLOGIC CONDITIONS , I, . , , • V • , Geologic Settina The site lies within a boundary zone betweenc the V Tertiary and Quaternary age sediments of the coastal foot- ' hills, and the Jurassic and Creeous age igneous and - V metamorphic rocks that form the highlands to the east. - V V '- V V - - •• Project No. 50216W-8107 dD Wo Topography and Surface Conditions The site is on a south-trending series of ridges dD that have moderate to steeply sloping flanks. The site is _____ ----bounded on the east and west by major south-draining-canyons; _____ • two additional drainage ravines are present in the southern portion of the site (Fig 1). Elevations across the site -- __ - - range from approximately 135 feet near the southeastern - - - boundary, to approximately 308 feet (MSI. Datum) at the northern boundary. Elevations for the proposed Tamarack Avenue range from approximately 60 feet near the terminus - - of Tamarack Avenue, to approximately 190 feet where the 'roadway enters the -subdivision. Man-made features on the site include numerous - . unimproved roads and scattered piles of agricultural debris, such as plastic sheeting, sta.es, and organic matter. We understand that crops, such as tomatoes, were once raised on -the site. The vegetation on the rid•;e tops consists of a -- -heavy growth of native weeds and gras5e3; the hillsides - - support a dense growth of chaparral. Vegetation along the Tamarack Avenue alignment Consists primarily of tomato fields in the canyon bottoms, and heavy chaparral on the hillsides. -- A water line for the Costa Real Municipal Water - - • -. District is present within the proposed Glasgow Drive ease- - ment, and northwesterly-trending, 150-foot wide SDGE easement is present near the existing Tamarack Avenue - (Fig. 1). -- - . - 5 -•,-- -- Proj.ct No. 50216W-s107 Of fsite improvements that will be affected L? t h e proposed extension of Tamarack Avenue consist of two c a n y o n fills constructed as part of the Calavnra H i l l s W a s t e W a t e r Treatment Plant, which is presently under co n s t r u c t i o n a t the northwestern corner of the site. Subsurface Conditions The site, which includes Tamarack Avenue improv e - ments, is underlain by fill soils, cultivat e d t o p s o i l s , Quaternary age alluvium, the Eocene age Santi a g o F o r m a t i o n , and the .Jurassic age Santiago Peak Volcanics. T h e s e u n i t s are described below; their approximate areal e x t e n t s , w i t h * the exception of the residual soils, are show n o n F i a . 1 . The geologic map symbol for each unit is given after the formal name for the unit, except for the topso i l . Fill Soils (Of) - Fill soils are present within the Tamarack Avenue easement adjacent to the was t e w a t e r t r e a t - ment plant. rhe B.R.G. & Associates, Inc., r e p o r t d a t e d - June 9, 1980 indicates that the natural grou n d w a s p r e p a r e d and fill was compacted to at least 90 percen t r e l a t i v e c o m - paction. The report also indicates that port i o n s o f t h e - Tamarack Avenue fill slope within the plant a r e a h a v e a l r e a d y - been constructed. Topsoil and Cultivated Topsoil (unmapped), - A -• loose and porous soil mantle, consisting of e i t h e r n a t u r a l s a n d y 6 Project No. 50216w-slo7 Woodd..$ydS ConSLdS • . clays and/or cultivated silty sands and sandy clays, was found to range from approximately 1 to 2-1/2 feet in thick- ness across the site. :4* Alluvium (Qal) Alluvial deposits consisting of porous and contpressibl, silty to clayey sands are present in the drainage bottoms. -As indicated in Test Pits 12 and 16, these soils appear to be less than 5 feet thick. In the Tamarack Avenue easement, alluvial soils -- consisting of loose to medium dense sandy clays and clayey - sands, such as those found in Test Pit 18, are present to depths in excess of the 10-1/2 feet excavated. Similarly, a review of Trenches 9 and 10 of the SGT report indicates -. alluvial depths in excess of 7 and 10 feet, respectively. - -. Santiago Formation (Ts).- This unit is moderately well indurated, dense, gray togreenish-gray, very fine to coarse silty, to clayey sand. Interbeds and clasts of sandy • to silty clay are present within the sand. Generally, the sands are well sorted; definite layering by gain size and - clay content is often exhibited through a vertical section. Lateral variations and gradations are also common, however, • . - and most of the beds appear to be lenticular across the • - site. Cemented zones are known to be present in this unit; zones up to 2 feet in maximum thickness have been observed in other areas 7 ! - -. - : : •VVV••V V seepage and wet" zones were found at various levels in the 0 borings. Generally the water was seeping from coarse sand layers that overlie sands containing a large aunt of ' finer grained materials. The source of this water is Un- known, but may, in part, .e associated with agricultural .'VV - V irrigation and increased infiltration of rainwater during the last three wet winter seasons. - V V V DISCUSSIONS, CONCLUSIONS, AND RECOMMENDATION - The discussions, conclusions, and recommendations V V - presented in this report are based on the results of our - field and laboratory studies, analyses, and professional V V V judgment. V V Potential Geologic Hazards V Faulting and Ground Breakage - Our reconnaissance, literature review, and field explorations did not reveal t h e presence of any significant faulting on the site. Based on - - our test pits, it appears that the previously-mentioned f a u l t TV traces are not confined to a particular "zone, but rather appear to be-present randomly throughout the site. In uur 0 . opinion, these faults can be considered inactive and sho u l d not pose a significant geologic hazard to. site development. • The geologic literature we reviewed indicates that V - the nearest known active fault zone along which seismic • 4 Project no. 50216W-S107 Project No. 50216W-S107 events of magnitude 4 or greater have occurred is the Elsinore Fault zone, mapped some 21 miles northeast of the site. The closest significant faulting '.s the northern - extension of the Rose Canyon Fault zc.ne, which is mapped approximately 10 miles southwest of the site. No magnitude 4 or larger earthquakes have been recorded on the Rose Canyon Fault zone. - Liquefaction - The formational sediments on the - site are very dense. These sediments contain thin perched water seepages at various levels; however, there is no apparent permanent ground water table within probable grad- ing depths. Due to the dense nature of 'the.soils and the general absence of a permanent, shallow ground water table, - in our opinion, these soils are not susceptible to liquef- action. Landslides Our review and field investigations did not reveal the presence' of any 'landslides on the site. Likewise, no remolded clay seams or near-horizontal bedding plane faults, were encountered in the tert borings or pits..- Ground Water Based on our experience, we believe that a seasonal, shallow perched ground water table may be present in the alluvial -. -. 10 Project No. 50216W-S107 soil.,, as well as in near-surface fractures in the metavolcaniC rocks in the general site area. In our opinion, the conditions within the proposed development area indicate a low to moderate probability for ground water seepage problems developing in the future. In our opinion, ..hese conditions and resulting problems can be reduced by installing subsurface drains. Recommendations for the need, extent, and locations of such drains are best made in the field during grading. General guidelines for subsurface drains in canyons and draws are presented under "Grading.' lie recommend that positive measures be taken to properly finish grade each lot after the residential struc- tures and other improvements are in place, so that drainage waters from the lots and adjacent properties are directed off the lots and away from house foundations, floor slabs, and slopes. Even with these provisions, experience has shown that a shallow giound water or surface water condition can and may develop in areas where no such water condition existed prior to site development; this is particularly true in years of heavy rainfall and in residential subdivisions where a substantial increase in surface water infiltration results from landscape irrigation. 1•1 Project No. S0216W-6107 General Soil and Rock Conditions The eurficial soil and geologic units on t h e s i t e aregrouped into three classes: soils that are moderately to highly expansive (topsoils, the cl a y e y m a t e r i a l s o f t h e Santiago Formation,-and the weathered clayey upper zone of the Santiago Peak Volcanics) compressible s o i l s ( t o p s o i l s and alluvium in the drainage areas) • and soils suitable for use at finish grade (sandy materials of t h e S a n t i a g o F o r m a - tion). These latter materials may be sli g h t l y t o m o d e r a t e l y expansive, but have been used at finish grade in other areas. Nominal reinforcement of foundations and s l a b s - o n - g r a d e i s typically used with these soils. Based on preliminary earth package studies, i n o u r pinion, sufficient quantities of finish g r a d e s o i l s w i l l b e generated during the proposed grading to p r o v i d e e a c h p a d with at least a 2-foot cover. Excavation Characteristics In o r opinion, the topsoil, residual s o i l , a n d formational sediments can be excavated with lig h t t o m o d - erate effort by heavy-duty grading equipment . I t s h o u l d b e - - noted that well cemented layers could be encountered during grading. Excavation of these and similar materia l s m a y require heavy hpping, and may result in oversized rock (larger than 24 inches). 12 U r i c Project No. 5021611-6107 - Excavation of the Santiago Peak Volcanics hard rock unit generally depends on the type of material, the degree of weathering and decomposition, and the spacing and orientation of the fractures. Die to the limited presence Of these materials on site and the fact that proposed cut!; are less than 5 feet in depth, we expect that design grades can be achieved with heavy ripping. Excavation for utility trenches in these materials may require pre-bl.sting. Slope Stability. Our selection of soil parameters for analysis of the slopes is based on the results of laboratory tests performed on selected samples and on our experience with the Santiago Formation in the Carlsbad area. We have performed stability analyses for the proposed slopes by the Janbu method using the following paramrters, which we consider conservative: = 33S, c 500 psf and y = 125 pcf, for undisturbed mateials; and 0 - 250, C' = 400 psf and y - 125 pcf, - • for compacted soils. The results of those analyses indicate that the proposed 2 to 1 inclined slopes have calculated factors of safety against deep-seated slope failure in excess of 1.5 for static condi- tions. Stability analyses require using parameters selected fr a range of possible values. There is a finite possibility 13 that slopes having calculated factors of safety, as indi- cated, could become unstable. In our opinion, the proba- bility of slopes becoming unstable is low, and it is our professional judgment that the slopes can be constructed. - W& recommend that the outer zone of fill slopes, a horizontal distance equal tothe height of the slope, be composed of properly compacted, granular soil. . We recommend that the face of each fill slope be compacted at maximum 4-foot intervals during construction and trackwalked upon completion. All slopes should be prrperly drained and maintained to help control erosion. - - We recommend that an engineering geologist from our firm inspect all cut slopes during gradin- to verify actual geologic conditions and to provide design modifications, if - needed. If adverse conditions are encountered during inspec- tion, slope buttressing may be required. Buttress recommenda- tions will be given during grading, if necessary. The fill soils within the zone of influence of the Tamarack Avenue extension in the waste water treatment plant are reported to be compacted to at least 90 percent relative com- paction. Based upon our analysis, the lots within the subject site will be supported on a prism of fill which does not bear on the existing waste water treatment plant fill. 14 -k-, - Project No. 50216W-8107 GIydsCon1I** I -- - Grading - __ dw _____ • • - We recommend that all earthwork be done in accor- - dance with the attached Specifications for Controlled Fill .(Appendix C). Woodward-Clyde Consultants should observe _____ - the grading and test compacted fills. .- We recommend that a pre-construction conference be _____ - . held at the site with the developer, civil-engineer. con- - tractor, and geotechnical engineer in attendance. Special soil handling or the grading plans can be discussed at that _____ • time. We recmmend that all loose, porous topsoils, - .. alluvium, and other loose soils not removed by planned - grading be excavated or scarified as required, watered, and then recompacted prior to placing any additional fill. We recommend that the soil engineer evaluate the actual depth and extent of excavation in the field at the time of grading. - We recommend installing subsurface drains beneath :- the fills placed in the major subdrainages on the site in accordance with the attached Guide Specifications for.Sub- - - • surface Drains (Appendix 0). We recommend that each sub- ______________ surface drain be extended upstream" in the drainage to the • • • point where it is covered by a minimum of 10 feet of fill. ______________ • We recommend that oversize rock fragments, that is fragments between 2 and 4 feet •in maximum dimension, be 15 * Proj.ct No. 50216w-sIo7 placed in accordance with the attached Oversize Rock Place- asnt Areas (Appendix E). We recommend that rock fragments larger than 4 feet in size not be used in fills. Highly expansive clayey soils may be encountered at grade in areas of shallow cuts and fills (daylight areas). do * or where claystone is encountered in'deeper cuts. We recommend that these clayey soils be excavated, where encoun- tered over the entire level lot areas to a minimum of 2 feet below finish grade, and then be replaced with properly compacted, nonexpansive soils or slightly to moderately expansive soils available on the site. The more clayey soils can be placed and properly compacted in the deeper fill areas. - We recommend that the upper 2 feet of materials in the fill areas be composed of finish grade, granular soils. Finish grade soils are defined as granular soils that have a potential swell of less. than 6 percent when recompacted to 90 percent of maximum laboratory density at optimum moisture content, placed under an axial load of 160 psf, and soaked in water. - - We recommend that soils swelling between 3. and 6 percent be compacted at moisture contents of 3 to 5 percent * over optimum water content when they are used within 2 feet of finish grade 16 Proj.ct No. 50216W-S107 If' - We recommend that an engineering geologist inspect all cut banks and slopes during grading to evaluate p o s s i b l e ____ -. seepage and geologic problems. Final recomme n d a t i o n s f o r •. controlling seepage problems can be presente d a t t h a t t i m e . 'A 40 - The attached Guide Specifications for Subsur f a c e D r a i n s ______ • . (Appendix D) shows several recommended methods for col- lecting Cut so'e seepage. n — Foundations - We recommend that foundations for structures founded in natural or properly compacted, nonexpansive soil be designed for an allowable soil bearing pres s u r e o f 2 , 0 0 0 psf (dead plus live load). In our opinion , t h i s b e a r i n g pressure can be increased by up to one-third fo r t r a n s i e n t ______ • loads caused by wind or seismic forces. For the s e b e a r i n g pressures, we recommend that all footings be fo u n d e d a . 1. minimum of 12 inches below compacted fill or undistur b e d c u t lot grade, be a minimum of 12 inches wide, and b e f o u n d e d a minimum horizontal distance of 8 feet from slope face s . - We recommend that foundations founded in sli g h t l y - to moderately expansive material be reinforce d t o p a n d bottom with at least one No.4 steel bar, and t h a t t h e C o n - crete slabs-on-grade be a minimum 4 inches thi c k a n d b e ______ • 17 V.