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Home My WebLink About2648 MARMOL CT; SFD; 77-10208; PermitMODEL N.O. BUILDING PERMIT APPLICATION fi City of CARLSBAD, CALIFORNIA 92008 App/icant to complete numbered siaces only. Phone 729-1181 Permit No, 77 19X4 JOB ADDRESS C261. 4/ g, ASSESSORS PARCEL NUMBER DESCR LOT NO. PLC TRACT 4/ 7lSEE ATTACHED SHEET) BOOK PAGE PAR. OWNER MAIL ADDR S ZIP 2 PHONE CO TRACTOR - MAIL A'DDPESS PHONE ' '--STkTEtiC. NO. CITY LIC. NO. ARCHITECT OR DESIGNER MAIL ADDRESS PHONE - LICEN.E NO. ENGINEER MAIL ADDRESS PHON LICENSE NO. r y COMPENSATION INS. CARRIER . MAIL ODRESS .. 6 4 BRANCH USE OF BtIILDING 1 / - NO. BORMS_________ NO. BATHS_________ 8 Class of work: .NEW El ADDITION Li ALTERATION El REPAIR El MOVE Li REMOVE JF 6/i 1 : :::::::ro Change of use to 11 Valuation of work: $ -4. — / PLAN CHECK FEES PERMIT FEE $ E . Type of . 0ccupan'. Group MICRO FILM FEE Size of Bldg Fw (Total) Sq.' No. of Stories ' Max. 0CC. Load Fire -,...•- Zone ' Use j / Zone — Fire Sprinklers Required Lives Li0 APPLICATION ACCEPTED BY PLANS CHECKED BY APPROVED F,$SR ISSUANCE BY No. o / OFFSTREET PARKING SPACES: DATE 0Øi Dwelling Units = g,erecL. ISq. Ft. Open NOTICE Special Approvals Required Received Not Required PLANNING DEPT. SEPARATE PERMITS ARE REQUIRED FOR ELECTRICAL, PLUMB. ING. HEATING, VENTILATING OR AIR CONDITIONING. HEALTH DEPT THIS PERMIT BECOMES NULL AND VOID IF WORK OR CONSTRUC- FIRE DEPT. TION AUTHORIZED IS NOT COMMENCED WITHIN 120 DAYS,OR IF SOIL REPORT CONSTRUCTION OR WORK IS SUSPENDED OR ABANDONED FOR A PERIOD OF 120 DAYS AT ANY TIME AFTER WORK IS COM- OTHER (Specify) MENCED. ENGINEERING DEPT I HEREBY CERTIFY THAT I HAVE READ AND EXAMINED THIS APPLICATION AND KNOW THE SAME TO BE TRUE AND CORRECT. WATER DEPT. ALL PROVISIONS OF LAWS AND ORDINANCES GOVERNING THIS TYPE OF WORK WILL BE COMPLIED WITH WHETHER SPECIFIED HEREIN OR NOT. THE GRANTING OF A PERMIT DOES NOT PRESUME TO GIVE AUTHORITY TO VIOLATE OR CANCEL THE PROVISIONS OF ANY OTHER STATE OR LOCAL LAW REGULATING CONSTR-UTI f( OR THE PERFORMANCE OF CONSTRUCTION. :( /(E// T('J SIGNATURE or CONTRACTOR DR AUTHORIZED AGENT ,. (DATE) SIGNATURE _OP_ OWNER _(IF_ OWNER _PUILOERI (DATE) WHEN PROPERLY VALIDATED (IN THIS SPACE) THIS IS YOUR PERMIT PLAN CHECK VALIDATION ck. M.O. CASH PERMIT VALIDATION CK. M.O. CASH 4 TOTAL FEES $ INSPECTOR I V :. V V - • V INSPECTION RECORD DATE REMARKS -. INSPECTOR FOUNDATIONS: - .. • SETBACK :. TRENCH V REINFORCING- V . FOUNDATION WALL-.& WEATHER PROOFING VVCONCRETE SLAB . V ... . -•,. .. •. . FRAMING INT..LATHING OR DRYWALL EXT LATHING MASONRY . • . . V ______________ FINAL USE SPACE BELOW- FOR NOTES, FOLLOW-UP, ETC. MODEL NO BUILDING. PERMIT APPLICATION City of CARLSBAD, CALIFORNIA 92008 Ano/icant to como/ete numbered soaces oniv. Phone 729-1181 Permit No. 7J" JOB ADDRESS — 4? fr( t-CJV ASSESSORS PARCEL NUMBER LEGAL LOT NO. BLK TRACT IEJSEE ATTACHED SHELTI BOOK PAGE PAR. OW f .1( ('• f3,7' MAIL ADDRESS 1/3 ZIP 2 • . p1 e) PHONE (if CONTRACTOR MAIL ADDRESS .. - p j .; ( PHONE STATE LIC. NO. CITY LIC. NO. ARCHITECT OR OESIGNER MAIL ADDRESS & uç PHONE LICENSE NO. ENGINEER MAIL ADDRESS 5, I1Liv PHONE LICENSE NO. COMPENSATION INS. ,CARRIER MAIL ADDRESS . BRANCH USE or BUILDING!. NO. BORMS _________ NO. BATHS__________ 8 Class of work: LI NEW I [)ITlON LI ALTERATION LI REPAIR LI MOVE LI REMOVE 9. Describe work: j1 '.I'C. LEZP 10 Change of use from Change of use to 11 Valuation of work: $ PLAN CHECK FEE S PERMIT FEE $ SPECIAL CONDITIONS: Type of Const. Occupancy Group MICRO FILM FEE - Size of Bldg. (Total) Sq. Ft. No. of Stories Max. 0cc. Load Fire Zone Use Zone Fire Sprinklers Required Elves 0N0 APPLICATION ACCEPTED BY. D'ZJ, /• / PL NS CHECKED BY APPROVEEIFOR ISSUANCE BY No. of Units oDwelling — ::r::R T:AR INC SPACES: I NOTICE SEPARATE PERMITS ARE REQUIRED FOR ELECTRICAL, PLUMB- ING, HEATING, VENTILATING OR AIR CONDITIONING. THIS PERMIT BECOMES NULL AND VOID IF WORK OR CONSTRUC- TION AUTHORIZED IS NOT COMMENCED WITHIN 120 DAYS,OR IF CONSTRUCTION OR WORK IS SUSPENDED OR ABANDONED FOR A PERIOD OF 120 DAYS AT ANY TIME AFTER WORK IS COM- MENCED. I HEREBY CERTIFY THAT I HAVE READ AND EXAMINED THIS APPLICATION AND KNOW THE SAME TO BE TRUE AND CORRECT. ALL PROVISIONS OF LAWS AND ORDINANCES GOVERNING THIS TYPE OF WORK WILL BE COMPLIED WITH WHETHER SPECIFIED HEREIN OR NOT, THE GRANTING OF A PERMIT DOES NOT PRESUME TO GIVE AUTHORITY TO VIOLATE OR CANCEL THE PROVISIONS OF ANY OTHER STATE OR LOCAL LAW REGULATING CONSTRUCTION OR THE PERFORMANCE OF CONSTRUCTION. Special Approvals Required Received Not Required PLANNING DEPT. HEALTH DEPT. FIRE DEPT. SOIL REPORT OTHER (Specify) ENGINEERING DEPT. WATER DEPT. SIGNATURE OF CONTRACTOR OR AUTHORIZED AGENT (DATE) tv SIGNATURE OF OWNER (IF OWNER BUILDER) (DATE) WHEN PROPERLY VALIDATED (IN THIS SPACE) THIS IS YOUR PERMIT PLAN CHECK VALIDATION CK. M.O. CASH PERMIT VALIDATION CK. M.O. CASH... TOTAL FEES $ / INSPECTOR Aw . .. . INSPECTION RECORD . DATE - REMARKS . INSPECTOR FOUNDATIONS: SET BACK - TRENCH REINFORCING . FOUNDATION WALL & WEATHER PROOFING - CONCRETE SLAB •. . 'z. . . ... FRAMING INT. LATHING OR DRYWALL EXT. LATHING MASONRY . . FINAL USE SPACE BELOW FOR NOTES, FOLLOW-UP, ETC. .... .. ... 'N- - - / x.4 en -PLUMBING~;i!,,PERM 4 City of CARLSBAD, CALIFORNIA 92008 AppIiant to complete numbered spaces only. Phone 729-1181 .Pprmit Mn 76' /' k JOB AODR ENS - - 7 . . - LOT NO. BL K T TRAC LEGAL 1DEsCR JLo7_go I I- .i-#. coF, OWNER - MAIL ADDRESS . 10 ZIP . . . - PHONE CONTRACTOR - MAIL ADDRESS - PHONE ._ . STATE LIC. NO. CITY LIC. NO. 1W p&&Ev/i7E ARCHITECT OR DESIGNER MAIL ADDRESS - . PHONE . . LICENSE NO. - ENGINEER . MAIL.ADDRESS PHONE . . LICENSE-NO. 5. COMPENSATION INS. CARRI ER MAIL ADDRESS - - - BRANCH 6 USE or eU/rIw-- 8. Class ofwork:'—JNEW C3 ADDITION 13 ALTERATION D REPAIR '. . . . 9- Describe work: N PL - . . . .::. . . . , . PERMIT FEES - . . . No. Type of Fixture or Item Fee SPECIAL CONDITIONS: - . .WATER CLOSET (TOILET) . $ BATHTUB .. . . - . . - h' LAVATORY (WASH BASIN) . - . SHOWER . . I) • KITCHEN SINK & DISP. •' . ./ - . . . . .L. DISHWASHER . • :L ~L APPLICATION ACCEPTEDNB. PLANS CHECKED BY APPROVED FOR ISSUANCE BY. LAUNDRY TRAY CLOTHES WASHER . . . ;/. . . DATE WATER HEATER . )i NOTICE - . URINAL THIS PERMIT BECOMES NULL AND VOID-IF WORK OR CONSTRUC DRINKING FOUNTAIN TION AUTHORIZED IS NOT COMMENCED WITHIN 120 OAYS.OR IF 0 FLOOR—SINK R DRAIN L 0 0 — '-CONSTRUCTION OR WORK IS OR ABANDONED FOR'A . PERIOD ,PERIOD OF 120 DAYS AT ANY TIME AFTER WORK IS COM- SLOPSINK MENCED. . . ; (GAS SYSTEMS: NO. OUTLETS /1) . . / . I HEREBY CERTIFY THAT I HAVE READ AND EXAMINED-THIS WATER PIPING & TREATING EQUIP. . — APPLICATION AND KNOW THE SAME TO BE TRUE AND CORRECT. .ALL PROVISIONS OF LAWS AND ORDINANCES GOVERNING THIS TYPE OF. WORK WILL BE COMPLIED WITH WHETHER SPECIFIED . WASTE-INTERCFPT HEREIN OR NOT, THE GRANTING OF A PERMIT DOES .NOT --- — — -PRESUME.TO GIVE AUTHORITY TO VIOLATE OR CANCEL THE PROVISIONS OF ANY OTHER STATE OR LOCAL LAW REGULATING - JUM BREAKERS CONSTRUCTION OR THE PERFORMANCE OF CONSTRUCTION.. ,j LAWN SPRINKLER SYSTEM_,._...--.. - - .. EWER._, _____NUERCLEANOUTS CESSPOOL SEPTIC TANK & PIT Or 4a 9) ROOF DRAINS M GWTdVE0'6'0-e`dr OR AUTHORIZED AGENT 17. .,._,,•4 -....... . . , •.. - .-.. ___________ . ______ISSUANCEFEE.,_ $ ., SIGNATURE OF OWNER (If OWNERBUILDER)..-IDATEl _.-. TOTAL FEES I - '. - WHEN PHOPERLY VALIDATED UN THIS SPACE) THIS IS YOUR PERMIT PLAN CHECK VALIDATION •• CK. M.O. CASH - PERM IT: VALIDATION -. CK. MO. • CASH - . .r •• , - - .y-.- •' ,- ... . ..•. ..•.•••,,. .:, -,-................- , . '......&• - INSPECTOR N 4• MECHANICAL PERMIT AP -L CATION City of CARLSBAD, CALIFORNIA 92008 r Aio/icanttocomo/ere numbered soaceson/v. Phone 729-1181 " /7 '/17:7L JOB ADDRESS - 2648 MARMOL CT. LEG AL 1 OESC LOT NO. BLK TRACT ,' I SHADOW CREEK . IES A.TTACH :7,:: ' OWNER ' MAIL ADDRESS ZIP ., PHONE 2' AMERICAN BUILIDNG ARTS 438 CAMINO DEL Ali.'SOUTH, SUITE 81 ;8,SAN DIEG CONTRACTOR MAIL.ADDRESS . PHONE STATE LIC NO. ' CITY LIC; NO. . 3 INNEY AIR CONDIXIONING 2333 W. VINE?ARD,ESCON0I66I586,88 ARCHITECT OR DESIGNER MAIL ADDRESS PHONE LICENSE NO. 4 .746-5700 . ENGINEER MAIL ADDRESS '' PHONE LICENSE NO. • 5, LENDER , MAIL ADDRESS . BRANCH; 6 ' . .. USE OF BUILDING .0-s •;_ RESIDENCE V., . 8 Class of work-.Ll.)NEW El ADDITION El ALTERATION El REPAIR . 9 Describe work: INSTALL HEATING AND AIR CONDITIONING . - Type of FueI: )t- Oil El Nat. Gas El LPG. El. - PERMIT FEES SPECIAL CONDITIONS: No. '. Type of Equipment ' 3 'Air Cond. Units—H.P. Ea. $'' I Refrigeration Units—H.P. Ea. ' Boilers—H.P. Ea. Gas Fired A.C. Units—Tonnage Ea . - '3 Forced Air Systems—B.T.U., jThF.. tM NJ .uu APPLICATION ACCEPTED BY: PLANS CHECKED BY APPROVED FOR ISSUANCE BY. Gravity.Systems—B.T.U. M Ea. I6or Furnaes-B.T.J. M SNaIl Heàter—.T.U. M- - NOTICE 'unit Hebters--i .T.U. M , THIS PERMIT BECOMES NULL AND VOID IF WORK-OR CONSTRUC- , ,'J EpnaiveCooIers . '• ' TION AUTHORIZED IS NOT COMMENCED WITHIN 120 DAYS,OR IF . , . . CONSTRUCTION OR WORK IS SUSPENDED OR ABANDONED FOR A \CIothes'wryers ., . PERIOD OF 120 DAYS AT ANY TIMEAFTER WORK IS COM- Ventilation Fan MENCED. ...... Range Hood -. , I HEREBY CERTIFY THAT I HAVE READ AND EXAMINED THIS APPLICATION AND KNOW THE SAME TO BE TRUE AND CORRECT. ALL PROVISIONS OF LAWS AND ORDINANCES GOVERNING THIS - Air Handling Unit- C.F.M. . F. M. '. Incinerator . - - TYPE OF WORK WILL BE COMPLIED WITH WHETHER SPECIFIED HEREIN OR NOT, THE GRANTING OF A PERMIT DOES NOT PRESUME TO GIVE AUTHORITY TO VIOLATE OR CANCEL THE • .' - - PROVISIONS OF ANY OTHER STATE OR LOCAL LAW REGULATING CONSTRUCTION OR THE PERFORMANCE OF CONSTRUCTION. . SIGNA1RE0 CO''TRACTOM OR AUTHORIZED AGENT 4 IOAIE) . . -. ISSUANCE FEE $ U -SIGNATURE OF OWNER OF OWNER BUILDER) (DATE) .•' . , •' . TOTAL FEES $ ' Ti VVPttN VMUrLMLY VALIDATED (IN THIS SPACE) THIS IS YOUR PERMIT . ... - ' PLAN CHECK VALIDATION , cic. M.O.. . cASH -PERMIT VALIDATION - CK. ' M.O. '' CASH INSPECTOR USE SPACE BELOW'FOA NOTES, FOLLOW-UP,.ETC. V .. • ., ELECTRICAL PERMIT APPLICATION City of CARLSBAD, CALIFORNIA 92008 Appl,canttocomplete.numbered spaces only. - Phone .7291181. permitNo.:_ t JOB ADDRESS .2648'LO1 bWp Rane La Coda, Ca. . LEGAL 1DESCR LOT NO. . .. BLK .,-- '. TRACT (ESEE ATTACHED SHEET) I .- OWNER . . MAIL ADDRESS ZIP ., ' PHONE.-', 2 ezcn Bldg. -Art3 438 Cmth2o Dal Rio . Ste-w-0 4t8,, 3. i).3 Ca. 92t06 29"921C CONTRACTOR MAIL ADDRESS . PHONE '.. . STATELIC. NO CITY LIC. NO 3 I Costa IZectc, Ii. 107 On .Aic. Sai azvo 7444444 344496 ARCHITECT OR DESIGNER . . MAIL ADDRESS PHONE LICENSE 4 . ... . . . - I-:........... ENGINEER . MAIL. ADDRESS PHONE ' LICENSENó. COMPENSATION INS. CARRIER . . MAIL ADDRESS . . . BRANCH. 6 USE OF BUILDING i,': 8 Class' ,work- EJ NEW E3 ADDITION DALTERATION D REPAIR 9 Describe work .,. ,., ,PERMIT. FEES. S SWIMMING POOL WIRING, ,I Each Fee. -7 -SPECIAL CONDITIONS: . . . . . f':. NO INCREASE IN SERVICE ..- •• . 7 AMPERES OF MAIN SERVICE SWITCH FUSE OR BREAKER . . APP1ICATIN AC*TfpB). I P,ANS CHECKED BY APPROVED FOR ISSUANCE BY I NEW SERVICE ON EXISTING -.,BLDG-. FOR EA. AMPERE OF INCREASE ..# ji ... . . SATE NOTICE . IN MAIN SERVICE, SWITCH, FUSE. : T'HIS PRMIT BECOMES NULL AND VOID I F WORK OR CONSTRUC- OR BREAKER 7 :y TION AUTHORIZED IS NOT COMMENCED WITHIN-1200AYS,OR IF .. .. . CONSTRUCTION OR WORK IS SUSPENDED OR ABANDONED FOR A NEW. CONSTRUCTION, FOR: EACH .. PERIOD OF 120 DAYS AT ANY TIME AFTER WORK IS .COM- REMODEL, ALTERATION, NO CHANGE MENCED. .- . IN SERVICE, FOR EA. AMPERE OF".... I HEREBY CERTIFY THAT I HAVE READ AND EXAMINED THIS INCREASE. . . APPLICATION AND KNOW THE SAME TO BE TRUE AND CORRECT. . . . ,.. '.5 . . •• ..• ... ALL PROVISIONS OF LAWS AND ORDINANCES GOVERNING THIS . . . TYPE OF WORK WILL BE COMPLIED WITH WHETHER SPECIFIED HEREIN OR NOT, THE GRANTING OF A PERMIT DOES NOT PRESUME TO GIVE AUTHORITY TO VIOLATE OR CANCEL THE TEMP. SERVICE UP TO AND INçLU - . . PROVISIONS OF ANY OTHER STATE OR LOCAL LAW REGULATING ING 200-AMP. CONSTRUCTION OR THE PERFORMANCE OF CONSTRUCTION. TEMP. OVER SERVICE. 200. AMP' PER 100 SIGNATUR1YOF CONTRACT-OK-OR AUTHORIZED AGENT , . (DAyS) ISSUANCE FEE TOTAL FEES ._. . . .- 4 5 _______________________________ SIGNATURE OF OWNER (IF OWNER BUILDER) (DATE) WHEN PROPERLY VALIDATED (IN THISSPACE) THIS IS YOUR PERMIT P'... .' . ...........S .PLAN CHECK VALIDATION: .- CK. . M.O. CASH -.. PERMIT VALIDATION . c .......MO . CASH II I F ' - I INSPECTOR INSPECTION REPORTS DATE ITEM - REMARKS INSPECTOR - - '- •0 ,J I f1&t7 fX1' A ROBERT PRATER ASSOCIATES REC EIVED - - Consulting Soil, Foundation & Geological Engineers January 6, 1978 JAN 10 1978 221-2A, 1985 CITY OF CARLSBAD Building Department Mr. Alan Mildwater Director of Purchasing and Planning American Building Arts 438 Camino del Rio South, Suite B 118 RECEIVED San Diego, California 92108 JAN 1978 Re: Earthwork Observation and Testing Services Lot 80 - Carlsbad Tract 75 CITY OF CARLSBAD La Costa, California Engineering Department Dear Mr. Mildwater: In accordance with your request we have provided earthwork observation and testing services in connection with the placement and compaction of up to approximately 17 feet of fill on the building pad For a proposed residence to be located on Lot 80, Carlsbad Tract 75-4. We previously performed a soil investigation for the subject lot the results of which were .: presented in our report entitled "Soil Investigation, Lots 80 & 88 - Carlsbad Tract 75-4, La Costa, California," dated August 24, 1977. Our representatives were present at the site from December 6 to December 211 1977 on an intermittent to full-time basis to provide earthwork observation and testing services as re- quired. The results of the field density tests and laboratory compaction curve are presented in Tables A and B, respectively. Doe to the rocky nature of the natural on site soils, normal field density testing procedures were impractical except during the initial filling operations. Accdrdingly, only five field' density tests were performed in the finer grained fill materials. In order to determine that proper earthwork procedures were followed and that minimum compaction requirements were achieved, our representatives monitored the moisture content and lift thicknesses of the fill materials during the grading operations. In addition, each lift was compacted by a minimum of three passes with a vibrating sheepsfoot roller. Based on our field observations and the attached test results it is our opinion that all fill material placed under the observation of our representatives was compacted to a minimum degree of compaction of 90 percent in accordance with the recommendations of the soil investigation report. 11585 Sorrento Volley Road, Suite 101, San Diego, California 92121 (714) 453-5605 January 6, 1978 : 221-2A, 1985 Page Our services consist of professional opinions and recommendations made in accordance with generally accepted soil and foundation engineering principles and practices. This warranty is in lieu of all other warranties either express or implied. If you have any questions, please call. Very truly yours, ROBERT PRATER ASSOCIATES •. .• Robert Prater, C. E. RP:ps • Attachments Copies: Addressee (4) Mma —--- z-== if - (_- 1. - •Ii Z — - — - - '7 / / ---- — - LEGEND 4 • Indicates approximate location of field density test I iii LIII ZII Base: A grading plan entitled "Lots 80 & 88 In La Costa Estates North" dated October 17, 19771 by Toups Corporation. ROBERT PRATER ASSOCIATES Coivftng SoS, Foundot,on 4 Geolog;col Engineers SITE PLAN LOT 80 IN LA COSTA ESTATES NORTH La Costa, California PROJECT NO. DATE Figure 221-2A January- 1978 221-2A TABLE A- SUMMARY OF FIELD DENSITY TEST RESULTS (ASTM D1556-64) Test Location Approximate Water Dry Degree of Test (Other Than Elevation Content Density Compaction Compaction No. Dote of Test General Fill) (Feet) (%) (pcf) (%) Curve No. Remarks 1 12/07/77 Lot 80 318 18 94.3 81 1 Test failed. see 02 2 12/08/77 Lot 80 318 14 105.0 91 1 Retest of #1 3 12/08/77 Lot 80 322 15 103.0 89 1 Test in outer 18 inches 4 12/08/77 Lot 80 320 13 106.7 92 1 5 12/08/77 Lot 80 324 12 116.0 100 1 Notes: 1) "Compaction Curve No." refers to Table B. 2) Unless otherwise noted elevations shown are to nearest foot. I! 22i2A TABLE LABORATORY COMPACTION TESTRESULTS (ASTM D1557-70) Maximum Optimum Compaction Test Description of Source of Dry Density Water Content (Curve) No. Material Material (pci) (%) 1 SILTY SAND(SM) On site 116.0 16.5 / Li ROBERT PRATER ASSOCIATES -i Consulting Soil. Foundation & Geological Engineers : - August 24, 1977 221-2, 1797 Mr Alan Mfldv'ater. . Director of Purchasing and Planning Ame'ri ca'n 'Building Arts $ 2030 State Stret San Diego, California 92101 -'•• !j 7 A . - Re Soil Investigation - Lots 80 & 88 -.Carlsbad Tract 75-4 La Costa, California 0 Dear Mr. Mildwater In accordance with your request we have performed a soil investigation for the proposed residences to be located on Lots 80 and 88 of Carlsbad Tract 75-4 in La Costa. The purpose of thisinvestigation was to evaluate the foundation materials and to provide recommendations - for site earthwork, building foundations, and slab-on-grade construction. : lt'is our uder~tordirt that the proposed residences will probably be two-story, wood-frame structures. Structural,- oods will be typical for this type of relatively light construction. Although the i tè din plans have been established, t is anticipated that substantial 411 cutting and filling may be required to construct building pods on the relatively steep terrain. The scope of work performed in this investigation included a site reconnaissance, subsurface exploration, laboratory testing, engineering analysis of the field and laboratory data and the preparation of this report. The data obtained and the analyses performed were for the purpose of providing design and construction criteria for site earthwork, house foundations, slab-on--grade construction, and retaining walls. - -, SITE CONDITIONS - - A. Surface Conditions Both lots are presently vacant and irregular in shape, each with a plan area of approximately one acre. Surface vegetation consists of a moderote to heavy growth of low grass and brush. 11585 So,fento Volley Rood, Suite 101, Son Diego, Coulomb 92121 (714) 453-5605 August 24, 1977 221-2, 1797 Page 2 B Subsurface - Two exploratory borings were drilled on June 28, 1977 using a truck mounted continuous flight auger.to investi gate and sample the subsurfaes61ls Jhebdringswere drilled to a maximum depth of 10 feet ot.the approximate locations shown on the.SitePlans, Figures 1 and 2. Logs of the borings together with the results of a laboratory direct shear test per— formed on a relatively undisturbed sample of the on-site soils are attached. The soils encountered in Boring 1 consisted predominantly of very dense sandy silts to the maximum depth of 8.5 feet. Jn Boring 2 very dense clayey sands were encountered From the ground surface to the maximum depth explored of 10 feet. Some thin lenses of potentially expansive clayey soils were encountered in both borings Logs of the borings as well as a key for soil classification are attached Free groundwater was not- encountered in either-of the.explorotoryborings drilled on the lots. -it must be noted, however, that fluctuations in the leyel iof,groundwater may occur due to variationi in surface topography, ubsirface stratification, r&nfall, and other possible factors which may not have been evident at the time of-our field investigation. C. Seismicity'— Based on available published information there are no faults known to exist at the site and the nearest knowh major active faults are the Elsinore and San Jacinto Fault Zones located approximately 24 and 47 miles northeast of the site, respectively. • - - Although research on earthquake prediction has 6reat1y increased in recent years, seismolo- gists have not yet reached the point where they can predict when and where an earthquake will occur; Nevertheless, on the basis of current technology, it is reasonable to assume that the proposed residential structures will be subject to at least one moderate earthquake during their design life.- During such an earthquake, the danger from fault offset through the site is remote but strong shaking of the site is likely to occur. CONCLUSIONS AND RECOMMENDATIONS :-: • . From a soil and Foundation engineering standpoint, the site is sui tab! & For the proposed con- struction provided the conclusions and recommendations presented in this report are incorporated into the design and construction of the project. A. Earthwork i.• Clearing and Stripping • Those areas to be graded should be cleared of any miscellaneous debris that may be present at the time of construction and stripped of all surface vegetation. The cleared and stripped materials should be disposed of off-site. Ii August 24, 1977 221-2, 1797 Page 3 J2. Subgrode Preparation : After the site has been cleared and stripped,Jhe exposed subgrode soils in those areas to receive Fill and/or building improvements should be scarified to a.depthof6inches;y-- moisture conditioned, and compacted to the requirements For structural, fill - Fills constructed on natural slopes having an inclination steeper than .5.(horizontal) to 1 (vertical) should be keyed and benched into firm natural ground below any loose surface soils as illustrated on Figure 3. The actual width of the toe keys and extent of removal of any existing loose surface soil should be determined by the soil engineer's representative. 3 Excavation - - Based on the results of our exploratory borings and our past experience with Similar mater- ials we anticipate that shallow cuts (on the order of 10 feet deep) may be made using ordinary heavy earthmoving equipment. However, some heavy ripping may be required and some hard blocks may be encountered,; in addition, some difficulty may be experienced in making footing and utility trench excavations using ordinary light bockhoe equipment 4. Material for Fill All existing on-site soils with an organic content of less than 3 percent by volume are in general suitoblefor use as fill. Any required imported.Fill material should be a non-expansive granular soil with a plasticity index of 12 or less. In addition, both imported and existing on-site materials -for, use as fill should not contain rocks or lumps over 6 inches in greatest dimension with no more than 15 percent larger than 2.5 inches. If during the site grading operations any pockets or seams of potentially expansive clayey soils are encountered they should only be reused as fill below a depth of 18 inches below the finished subgrade level 5 Treatment of Expansive Soils If potentially- expansive clayey soils are encountered at the finished subgrode surface" in cut areas it wll be necessary to overexcovote these materials and replace them with a layer of compacted non-expansive fill. The need for and depth of removal should be determined in the field by the soil engineer's representative based on an in of the materials ex- posed at the finished subgrode surface. 6. Compaction. • . • All structural fill should be compacted to a minimum degree of compaction of 90 percent - based upon ASTM Test Designation D1557-70. Fill material should be spread and compacted in uniform horizontal lifts not exceeding 8 inches in uncompocted thickness. August 24, 1977 221-2, 1797 3 Page 4 7 Slopes - d cut and fill slopes have a maximum inclination of 1.5 We recommend that all propose I horizontal to 1 vertical. Fill slopes should be constructed so as to assure that a minimum degree of compaction of 90 percent is attained to Within 18 inches of the finished slope face and that a minimum degree of compaction of 85 percent is attained in the outer 18 inches. This may be accomplished by "backrolling" with a sheepsfoot roller or other suit- able equipment Placement of fill near the tops of slopes should be carried out in such a manner as to assure that loose, uncompacted soils are not sloughed over the tops and allowed to accumulate on the slope face - The on-site soils will be moderately susceptible to erosion where used as compacted fill Therefore, the project plans and 'Spec ifica.tions should contain all necessary design features and construction requirements to prevent erosion of the on-site materials both during and after construction Slopes and other exposed ground surfaces should be appropriately planted with a protective ground cover. j . It should be the grading contractor's obligation to take all measures deemed necessary during grading to provide erosion control devices in order to protect slope areas and adjacent pro- perties from storm damage and flood hazard originating on this project It should be made the contractor's responsibility to maintain slopes in their as'-graded form until all slopes, berms, and associated drainage 'devices are in satisfactory compliance withthe project plans and specifications. 8 Trench Backfill Pipeline trenches should be bockfilled wifh compocted fill. Backfill material should be placed in lift thicknesses appropriate to the type of compaction equipment utilized and paci-edto a minimum degree of compaction of 85 percent by mechanical means. In all . . building and pavement areas, the upper portion of the backfill to a depth equal to 1.5 times the trench width, but not less than 3 feet, should be compacted to a minimum degree of compaction of 90 percent. In pavement areas, that portion of the trench backfill within the pavement section should conform to the material and compaction requirements of the ad- jacent pavement section. - Drainage Positive surface gradients should be provided odjocentto the houses so as to direct surface water away from foundations and slabs toward suitable discharge facilities. Pondng of sur- face water should not be allowed adjacent to the houses. • Construction Observation Variations in soil conditions are possible and may be encountered during construction In order to permit correlation between the preliminary soil data and the actual soil conditions August 24, 1977 221-2, 1797 Page 5 -encountered during construction; and coformnce ththepla dspeci fications as originally contemplated, it is essential that the soil enginer be'ietaired to perform on-site review during the course of con'str'uction.2 - B Foundations .1. Footings We recommend that the proposed houses be supported on conventional individual spread and/or continuous footings bearing in undisturbed natural soils and/or compacted fill soils. Fo6tingshoi18 b&founded at least '12 inches below rough pod'grade or 16 inches below the lowest adjacent finished grade, whichever is deeper. Footings located on or adjacent to the tops of slopes should bextended sufficiently deep so 1. as to provide at least 5 feet of horizontal overbetveen the;footing 1theslp face at the footing be level. If potentially expansive clayey soils are .encountred in the footing excavations it may be necessary to extend the footings deeper than recommended above. Theneed for deepening footings and * the required depth should be -determined in the field by the soil engineer's representative based on an inspection of the soils exposed in the 'footing exèavations. At the recommended depths.footings may be designed for allowable bearing pressures of 3,500 pounds per square foot (psf) for combined dead and live loads, and 4,700 psf for all loads, including wind or seismic. The footings should, however, have a minimum width of 12 inches. All continuous footings should contain top and bottom reinforcement to provide . structural continuity and to permit spanning of local irregularities. Settlements under buildin loads are expected to be within tolerable limits for the proposed houses. W&estimate that post-construction differential settlements across either house will not exceed 1/2-inch. 2 Slabs-On-Grade - Concrete slobs-on-grade may be supported directly on natural undisturbed non-expansive soils and/or compacted non-expansive fill. Slab reinforcing should be provided in accordance with the anticipated use of and loading on. the slab. As .o minimum, however, we recommend that the slabs be reinforced with 6x6-10/10 wire mesh for control of shrinkage cracks. In areas where moisture -sensitive floor coverings are to be utilized 'and in other areas where floor dampness would be undesirable, we recommend that consideration be given to providing an impermeable membrane beneath the slabs. The membrane should be covered with 2 inches of sand to protect it during construction. The sand should be lightly moistened lust prior to placing the concrete. The thickness of the sand layer may be substituted directly for an equal thickness of the recommended non-expansive fill layer. 3. Retaining Walls Retaining walls must be designed to resist lateral earth pressures and any additional lateral loads caused by surcharge loads on the adjoining slab surface. We recommend that unre- August 24, 1977 221-2, 1797 Page strained walls be designed for'on equivalent fluid pressure of 35 pounds per cubic foot (pcf). We recommend that restrained walls be designed for an equivalent fluid pressure of 35 pcf, plus on additional uniform lateral pressre of 5H pounds per square fool where H = the height of backfill above the top of the wall footing in feet Wherever walls-will be sub 1ected to surcharge loads, they should also be designed for an odditionl uniform lateral pressure equal to one-third the anticipated surcharge pressurein the case of Jnestrained walls nd one-half the anticipated surcharge pressure in the case of restrained walls. " The preceding design pressures are for level bockfills and assume that there is sufficient drain- age behind the walls to prevent the build-up of hydrostatic pressures from surface water in- flltrtion. Adequate drainage may be provided by means of weep holes with permeable material installed behind the walls or by means of a system of subdrains. Backfill placed behind the walls should be compacted to a minimum degree of compaction of 90 percent using light compaction equipment If heavy eauipment is used, the walls should be appropriately temporarily braced I Retaining walls should be supported on footing foundations designed in accordance with the recommendations presented previously under Item'" B;1.;"Footings." Lateral 'load resistance for the walls canbe developedin accordance with the. recommendations presented under Item B.4. , "Lateral Loads' 4 Lateral Loads Lateral load resistance for 'buflding foundations may be developed in friction between the base of the'foundations and the supporting subgrade. An allowable friction coefficient of 0.35 is recommended for use in design. An additional allowable passive resistance of 500 psf acting against the foundations may be used in design provided the footings are poured neat against undisturbed soil. ' • Our services consist of professional opiniohs and recommendations mode in accordance with generally accepted soil and foundation engineering principles and proctces. This warranty is in lieu of all other worronties either express or implied If you hove any 'questions, please call. • • , Very truly yours, •' ROBERT PRATER ASSOCIATES ' • Robert Prater, C.E. ' RP:jr • Copies: Addressee (4) ' Buzard & Henning, Attention: Mr. Bill Henning (1) -, Toups Corporation, Attention: Mr. Gary Lipsko (1) j Jk [14", 41aw rn \\J\ N \ tM kA rn tA \\ N .!i > LEGEND - Indicates approximate r) CO r— $-P location of exploratory j O Z boring o — O() cc th Ct -a c Approximate Scale (Feet) 0 25 50 100 \ ._.__...L\'\\ ç\ \ •. I : 70 N ryl \ 10 DO - LEGEND \' N \., Indica tes approximate> L/I ep. \, \ location of exploratory - boring: on -- z Approx imate Scale (Feet) BaMawilwa am 0 25 50 :100 into firm .:.. und qro • 3-ft. min.','--- Horizontal benches into firm ground . . Toe key-width - to be determined ........................... . •. by Soil Engineer, Zone of loose but not-less than surface soil 10 ft. - Notes: 1). Fills to be keyed and benched as shown .......... ....... . into existing ground where the existing SCHEMATIC ONLY slopes are steeper than 5 horizontal to NOT TO SCALE 1 vertical 2) Finished fill slope inclination to be no steeper than 1.5 horizontal to 1 vertical. ROBERT PRATER ASSOCIATES Consult- Sod Fo,ndoon I Geoio.coI Engineers RECOMMENDATIONS FOR FILLING ON SLOPING GROUND LOTS 80 & 88 - CARLSBAD TRACT 75-4 La Costa, California PROJECT NO. DATE Figure 3 221-2 August 1977 PRIMARY DIVISIONS GROUP SECONDARY DIVISIONS , SYMBOL GRAVE' CLEAN cw Well graded gravels, gravel-sand mixtures, little or no GRAVELS fines. ,, Poorly graded gravels or gravel-sand mixtures, little or (I) cc o MORE THAN HALF (LESS 1)-IAN o OF COARSE 5% FINES) no fines. C)) FRACTION IS - -GRAVEL"-.'GM Silty gravels gravel-sand-sill mixtures non-plastic lines oz w 'LARGER THAN :. WITH - -, Z , -. ...N0. 4 SIEVE-:..-, .. ._.. FINES_, GC'' Clayey gravels, gravel -sand -cIayrnixiurs, plastic Iines.,. - SANDS SW Well radd sands"gravelIysands little or no fines Er Lu SANDS LU Uj in MORE THAN HALF ' SP 'Poorlyraded sands or"gravelly sands, little or no fires. o L) w cc co- - FRACTION IS " SANDS SM Silty sands, sand-iIt mixtures, non-plastic fines. SMALLER THAN WITH NO. 4 SIEVE FINES SC Clayey sands, sand-clay mixtures,. plastic fines. w SILTS AND CLAYS ML Inoroanic silts and very fine sands, rock flour, silly or clayey fine sands or clayey. silts with slight plasticity. o ' 0 j in Lu - '' - ci inorganic clays of low to medium plasticity, gravelly < LIQUID LIMIT .15 clays, sandy clays, silty clays, lean clays. LESS THAN.50% 01 - Organic silts and organic silty clays of low plasticity. w z ?°.. SILTS AND CLAYS M Inorganic s:lis micaceous or diatomaceous fine sandy or silly soils.'elastic sills. Lu W o . Z . ....- LIQUID LIMIT, lS ' CH Inorganic clays of high plasiicily.,fat clays. 0< . - x GREATER THAN 50% OH ' Organic clays of medium to high plasticity, organic silts. HIGHLY ORGANIC SOILS - Pt Peat and other highly organic soils. DEFINITION OF TERMS - - ,_•,_-.; . I • •',. . U.S. STANDARD SERIES SIEVE ' ' CLEAR SQUARE SIEVE OPENINGS 200 40 ' 10 4 3/411 0 311 1211 SAND GRAVEL SILTS AND CLAYS 1 . COBBLES BOULDERS FINE MEDIUM COARSE FINE COARSE - GRAIN SIZES . . CLAYS AND PLASTIC SILTS STRENGTH BLOWS/FOOT VERY SOFT 0 - 1/4 ' 0 -'2 - SOFT 1/4 -1/2 2 - 4 FIRM 1/2-1 4-5 STIFF 1-2 8-16 VERY STIFF 2 - 4 16 - 32 HARD OVER 4 OVER 32 I SANDS,GRAVELS AND I BLOWS/FOOT1 1 INON-PLASTIC SILTS VERY LOOSE * :' 0 -4 LOOSE . 410 :. MEDIUM DENSE ' - 10 -30 DENSE 30. - 50 VERY DENSE OVER 50 RELATIVE DENSITY . CONSISTENCY - Number of blows of 140 pound hammer failing 30 inches to drive a 2 inch O.D. (1-3/8 inch ID.) split spoon (ASTM D-1586). 4Unconlined compressive strength in Ions/sq. ft. as determined by laboratory Testing or approximated by the standard pcnetral'ion test (ASTM D-1586), pocket penietrometer, torvane, or visual observation, ROBERT PRATER ASSOCIATES Co"%uh,np Sot. Foundoron I Geologcot fnp.rreeri KEY TO EXPLORATORY BORING LOGS Unified Soil Classification System (ASTM D-2487) LOTS 80 & 88 - CARLSBAD TRACT 75-4 La Costa, California PROJECT NO. DATE I -j Figure 4 221-2 August 1977 DRILL RIG tont.. Flight Auger SURFACE ELEVATION 359 (opprox) LOGGED BY WDH DEPTH TO GROUNDWATER None ATD BORING DIAMETER 8 Inches DATE DRILLED 6/28/77 : ..' DESCRIPTION AND CLASSIFICATION -; W QW DEPTH cc Z SYM SOIL (FEET) - w 0 3 DESCRIPTION AND REMARKS - BOL COLOR CONSIST. TYPE .Zw wec 9 SANDY SILT, with some grovel — brown very ML (60 Percent Passing No. 200 Sieve) dense .-- >( - (some interbedded lensei of . V V - 2— SANDY CLAY) )rongish brown - -4- -. -, •-T-- V - 5 7 - -8 - V Bottom of Boring = 8.5 Feet - - • V —10-- V - ••- .,• V - V 12 - , —13— Note "s" denotes sock sample -. - V V —.14 - - - - - V —15— V V V 16 - V V V - 17 . V V V -18- V 19 - —20— V V V V EXPLORATORY BORING LOG V V ROBERT PRATER ASSOCIATES LOTS 80 & 88 - CARLSBAD TRACT 75-4 Sot To,do,.on I GoJo,coI fnp.neefs La Costa, California V • PROJECT NO. DATE J BORING V V 22172 Auoust 1977] NO. 1 DRILL RIG Cont. Flight Auger SURFACE ELEVATION 345 (opprox) f LOGGED BY WDH DEPTH TO GROUNDWATER None ATD BORING DIAMETER 8 Inches DATE DRILLED 6-28-77 DESCRIPTION AND CLASSIFICATION - w c DEPTH - DESCRIPTION AND REMARKS SYM BOL COLOR CONSIST. SOIL TYPE (FEET). - 0 z -, CD - CLAYEY SAND-SANDY CLAY, : brown very SC_.* wth some grovel dense CL (50 Percent Passing No 200 Sieve) 8y, 13 - 0 11 - - 2 3 -. - - -5- - - - _6- - - - • . -.8 - - - 10 — Bottom of Boring =.10.0 Feet -. • - 1 -11- .. -: :. - . -: • .: 12 - - 13 - • . . ., -15--- • • 16. • -14-. - 17 - - -18- - -20--- EXPLORATORY BORING LOG ROBERT PRATER ASSOCIATES LOTS 80 & 88 - CARLSBAD TRACT 75-4 5,I• Fondoi,on .5 Grolo,coI E"preevs La Costa, California PROJECT NO, DATE J BORING 2 221-2 August 1977 NO. 5.0 4.c u_ (I, 3.0 - .- . t_- ;:' II - .....& .,..... — .. -;-- k -----------t () 0 1.0 2.0 . 3.0 . 4.0 5.0 NORMAL PRESSURE (KSF) SAMPLE DATA DESCRIPTION: BORING NO.: EB1 DEPTH (It.): 0.5 I ELEVATION (II): 358.5 TEST RESULTS APPARENT COHESION )C 2.49_ksf APPARENT ANGLE OF INERNAL FRICTION (0): 10° Note: Sample was allowed to saturate before shearing - DIRECT SHEAR TEST DATA ROBERT PRATER ASSOCIATES . LOTS 80 & 88 — CARLSBAD TRACT 75-4 ConsJs,np So,I TondoI,on I Golog,cot fnpm"ri Lo Costa, California PROJECT NO. DATE 221-2 Aucust Figure 5 -I TEST DATA sANDy SILT (ML), brown ___________________ ______ TEST NUMBER 2 3 4 NORMAL PRESSURE (KSF) 1 .00 2 .50 5. OC SHEAR STRENGTH (KSF) 2.175 2.81 344 INITIAL HO CONTENT 11.7 11.7' 11.7 FINAL H2O CONTENT 25.1 25.1 25.1 INITIAL DRY DENSITY (PCF) 1104.0 104. 0 104.0 FINAL DRY DENSITY (PCF) L --- --- STRAIN RATE: 0. 02nches/minute (approx.) - - - - V aL RECEIVED\ i VTNfl PflF.PAPTM1NTAT. TN1OPMATT1)N cT-TFTT - V - - ,.BUILDING DEPARTMENT --Ll DATE:. V L ciry OF CARLSBAD Building Department. PLANNING DEPARTMENT ZONE LOT SIZE LOT WIDTH 0 77 'UNITS ALLOWED .. _.' _UNITS PROVIDED 0 3 PARKING SPACES REQUIRED PROVIDED________________________ % COVERAGE ALLOWED PROVIDED —4 Q _ \( BUILDING HEIGHT ALLOWED * PROVIDED 'All FRONT SETBACK: SIDESETBACK: REARSETBACK: ALLOWED . t.V Ml= PROVIDED . ~INTRUSIONS 'LANDSCAPE& IRRIGATION PLAN COMMENTS: ENVIRONMENTAL PROTECTION REQ: ' // 1/4 ADDITIONAL COMMENTS: OK TO ISSUE:. DATE OK TO FINAL - DATE ENGINEERING DEPARTMENT INDUSTRIAL WASTE IMPROVEMENTS SEWER CONNECTION .'A)t _DRIVEWAY LoCATIoNS1 e1 GRADING PERMIT DRAINAGE / LEGAL DESCRIPTION _ ADDITIONAL COMMENTS 7LU€ V OK TO ISSUE: ( DATE __Q'7_PWI O( TO FINAL4- DATES'("7T - Al /s s o,,e r 01T !/2 / 0143 4xj-f1JEQ /O4,V' FIRE DEPARTMENT SPRINKLING SYSTEM FIRE PROTECTION EQUIP FIRE ALARMS EXJTS_______ FIRE HYDRANTS______ LOCATION V ADDITIONAL COMMENTS V V OK TO ISSUE: DATE . . OK TO FINAL_V DATE_______ WATER DEPARTMENT REQUIREMENTS OFPPPOPRIATE DISTRICTS MET DATE___________________ r: INTERDEPARTMENTAL INFORMATION SHEET BUILDING DEPARTMENT - RECEIVED DATE: rr-c i ir-,r [,J PLANNING DEPARTMENT ZONE LOT SIZE UNITS ALLOWED__________________ PARKING SPACES REQUIRED %. COVERAGE ALLOWED BUILDING HEIGHT ALLOWED. LOT WIDTH UNITS PROVIDED___________________ PROVIDED________________ PROVIDED PROVIDED SIDE SETBACK: ALLOWED PRO VI DE D__________________ INTRUSIONS LANDSCAPE & IRRIGATION PLAN COMMENTS: ENVIRONMENTAL PROTECTION REQ: SCHOOL DISTRICT FEES: DISTRICT: ADDITIONAL COMMENTS: 3 LL€1 cuaa c7 AMOUNT: OK TO ISSUE: DATE .1 2// 17e-OK- TO FINAL DATE ENGINEERING DEPARTMENT R.O.W. INDUSTRIAL WASTE . IMPROVEMENTS____ .SEWER CONNECTION DRIVEWAY LOCATIONS_______________ GRADING PERMIT EASEMENTS2Zb7LL..a ,aA14d' DRAINAGE LEGAL DESCRIPTION _ro ADDITIONAL COMMENTS . OK TO ISSUE:/4t" DATE/Y/r/7? PWI OK TO FINAL DATE FIRE DEPARTMENT . SPRINKLING SYSTEM .J FIRE PROTECTION EQUIP. FIRE ALARMS EXITS__________________________________ FIRE HYDRANTS LOCATION_______________________________________ ADDITIONAL COMMENTS OK TO ISSUE: DATE OK TO. FINAL DATE_______ I WATER /DEPARTMENT REQUIEMENTS OF APPROPRIATE DISTRICTS MET DATE