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0106-191 (SFD)04 W.' cr) �..' d\U-) C Z CCD0. WWCCD I- a N Z In N ON Uo a. - Z Lo Q cc 0 LL X W — mVU O d M H I'll Z coo O J LICENSED CONTRACTOR DECLARATION I hereby affirm under penalty of perjury that I am licensed under provisions of Chapte.; 9 (commencing with Section 7000) of Division 3 of the Business and Professionals Code, and my License is in full force and effect. License # Lic. Class Exp. Date b"" n12r. 3 D ted ' Signature of Contractor, u7, OWNER -BUILDER DECLARATION I hereby affirm under penalty of perjury that I am 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 & Professionals Code). ( ) I, as owner of the property, 'am exclusively contracting with licensed contractors to construct the project (Sec. 7044, ,Business & Professionals Code). () I am exempt -under Section B&P.C. for this reason Date Signature of Owner WORKER'S COMPENSATION DECLARATION I hereby affirm under penalty of perjury one of the following declarations: () I have and will maintain a certificate of consent to self -insure for workers' compensation, as provided for by Section 3700 of the Labor Code, for the performance of the work for which this permit is issued. ,:• <() I have and will maintain workers' compensation: insurance, as required by Section 3700 of the Labor Code, for the performance of the work for which this permit is issued. My workers' compensation insurance carrier?,& policy no. are: Carrier Policy No. STATE FUND 0601201 (This section need not be completed if the permit valuation is for $100.00 or less). , ( ) I certify that in the performance of the work for which this permit is issued, I shall not employ any person in any manner so as to become subject to the workers' compensation laws of California, and agree that if I should become subject to the workers' compensation provisions of Section 3700 of the Labor Code, I sh 1II forthwith comply with those prgvisior. 415ate: 21 Applicant— Warning: Failure to secure Workers' Compensation coverage is unlawful and shall subject an employer to criminal penalties and civil fines up to $100,000, in addition to the cost of compensation, damages as provided for in Section 3706 of the Labor Code, interest and attorney's fees. IMPORTANT Application is hereby made to the Director of Building and Safety for a permit subject to the conditions and restrictions set forth on his application. 1. Each person upon whose behalf this application is made & each person at 'Whose request and for whose benefit work is performed under or pursuant to any permit issued as a result of this applicaton agrees to, & shall, indemnify & hold harmless the City of La Quinta, its officers, agents and employees. 2. Any permit issued as a result of this application becomes null and void if work is not commenced within 180 days from date of issuance of such permit, or cessation of work for 180 days will subject permit to cancellation. I certify that I have read this application and state that the above information is correct. I agree to comply with all.City, and State laws relating to the building construction, and hereby authorize representatives of this City to enter upon th rabove-mentioned property for inspection purposes. ,Signature (Owner/Agent) Dated BUILDING PERMIT PERMIT# DATE VALUATION LOT TRACT afil .ii 13 30056 JOB SITE ADDRESS APN Yl ^(.`C9RP 4m'iJS�i1'D. 8.6.?a'b.1.{ qs/ ryo} ry9+q f 70,3l�!r"i.PdwrF OWNER CONTRACTOR/DESIGNER/EN (NEER MADMON C7..UB l+AMOCL6XIM AMDitl:`W PMC S Cr`C)k4 10MION 78-505 OLD AM? E 52 44835 DEW CANY ON RD 1A Qi7WEA CA. 92253 E?A1 M DI "T CA 92261 C160)346-3228 t'`:f3IA 03(3:x1 USE OF PERMIT sm biz 1?.A-WJ Y 1). ,'' UNa. , >'V 1 tom, MYT, XX�&S NOS° INCi.UDE 8.Lw' CK'L�%AJ..I.dPP00L1D1U1T�'e�AY A,PP110A0W,'0W'%MVJT11,AM."MMA[.a;TATY,1AWKIAdMUDWO ''r H&Y4KOA.}JM1t3+D SP'1?CIFUS A(,r 01Y ISnq 1F.ikpPL).C; %1A, IS A4 "Z Le CUOTOM. CONS'1`.RUCIJUN 31031.00 X11 PORCHMATIO 334.09 N 0A13.AMMPORT 746.43 SF , wRI cIt UUMNARY co'"ISIM CTICN YER, 101.000-418-o00 $1,33 oo PL:AX CHECK FV -2- 073X N1.1WM,A9,i1CA,LM 10I -CW -421¢000 31,3".3:4(► 3U;CTP%X*.AL F1,12 101i000-420-CtW $310151 PLIUMNO FRE 901.000.419.000 3104.04 S'1'Rd'SM M!.DTIM1 FSE > RES1n 101-000-241 -0,00 00.29 ORe4DMI FRE 101-000.42 3-000 M00 DEVELOPPR IMPACT PEE �?,'�iY74ff3 pa m►oic P�,C�=.1aSi; �t31uf?a255-r�0 'z�s'a, W MZ 11PPOSIT 1,01-000-439«318 •i67�u.a�1 . < .44, _ �i I 6f�.nra i�,F= PRE -FAM F05 4750,00 UAUG 6 2 fi I'll DUE NOW S%6N.47 C,T,. - ( uF L,V Q!1i9/}i FP1?',idC� �JEPf RECEIPT DATE BY DATE FINALED •02 INSPECTOR INSPECTION RECORD OPERATION DATE INSPECTOR OPERATION DATE INSPECTOR BUILDING APPROVALS MECHANICAL APPROVALS Set Backs _ 57 Underground Ducts Forms & Footings r Ducts ; Slab Grade Return Air ' Steel Roof Deck �� j�� Combustion Air Exhaust Fans,' 0. K. to WrapB F.A.U. Framing j�, �-�- _ - Compressor Insulation` �/ vents Fireplace P1. Grills Fireplace T.O. Fans & Controls Party Wall Insulation Condensate Lines Parti Wall Fjrewall Exterior Lathe--, Dryv4l - In1n�a4h _ : Final � Final 'P (_ (� POOLS- SPAS BLOCKWALL APPROVALS steel Set Backs ,h Electric.86nd Footings Main Drain , Bond Beam Approval Yo Cover Equipment Location - Underground Electric Underground Plpg. Test Final Gas Piping: - ' }PLUMBING APPROVALS Gas Test = _ Electric Final Waste Lines S� Heater Heater Final Water Piping Plumbing Final Plumbing Top Out Equipment Enclosure Shower Pans - O.K. for Finish Plaster Sewer Lateral Pool Cover Sewer Con ection O O - Encapsulation Gas'Piping ` Gas Test Appliances Final ' COMMENTS: FinaF Utility Notice (Gas) ELf-CTRICAL APPROVALS Temp. Power Pole .1; Undefground Conduit Rough Wiring Low Voltage Wiring Fixtures Main Service Sub Panels Exterior Receptacles G.F.I. y Smoke Detectors - Temp. Use of Power or Final Utility Notice (Perm) O y Building T4ht 4 4 Q%44& P.O. BOX 1504 76-495 CALLE TAMPICO LA QUINTA, CALIFORNIA 92253 ' 'I 7 TTS — &!� / /_ C- . Mailing 11 11 �t Address City Zip Tel. Contractor A1/1 a -.k<) ,L. -r 1ZZ4-C State Lic. City & Classif. Arch., Engr., Designer 1-.1'1 V -P Address Tel. City Zip State a L`_\/ I Jai t> , 'I i (�-) Lic. # LICENSED CONTRACTOR'S DECLARATION I hereby affirm that I am licensed under provisions of Chapter 9 (commencing with Section 7000) of Division 3 of the Business and Professions Code, and my license is in full force and effect. SIGNATURE DATE OWNER -BUILDER DECLARATION I hereby affirm that I am exempt from the Contractors License Law for the following reason: (Sec. 7031.5,11usiness and Professions Code: Any city or county which requires a permit to construct, after, 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 or the Business and Professions Code, or thathe 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 a civil penalty of not more than rive hundred dollars ($500). I-1 1, 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, Buisness 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 or completion, the owner -builder will have the burden of proving that he did not build or improve for the purpose of sale.) I 11, as owner of the property, am exclusively contracting with licensed contractors to con. struct 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 who contracts for such projects with a contractor(s) licensed pursuant to the Contractor's License Law.) 1-1 1 am exempt under Sec. B. & P.C. for this reason Date Owner WORKERS' COMPENSATION DECLARATION I hereby affirm that 1 have a certificate of consent to self -insure, or a certificate of Worker's Compensation Insurance, or a certified copy thereof. (Sec. 3800, Labor Code.) Policy No. Company n Copy is filed with the city. ❑ Certified copy is hereby furnished. CERTIFICATE OF EXEMPTION FROM WORKERS' COMPENSATION INSURANCE (This section need not be completed if the permit is for one hundred dollars ($100) valuation or less.) I certify that in the performance of thg work for which this permit is issued, I shall not employ any person in any manner so as to become subject to the Workers' Compensation Laws of California. Date Owner NOTICE TO APPLICANT., If, after making this Certificate of Exemption you should become subject to the Workers' Compensation provisions of the Labor Code, you must forthwith comply with such provisions or this permit shall be deemed revoked. CONSTRUCTION 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, Civil Code.) Lender's Name Lender's Address This is a building permit when properly filled out, signed and validated, and is subject to expiration if work thereunder is suspended for 180 days. I certify that I have read this application and state that the above information is correct. I agree to comply with all city and county ordinances and state laws relating to building construction, and hereby authorize representatives -of this city to enter the above- mentioned property for inspection purposes. Signature of applicant —Date— Mailing ateMailing Address City, State, Zip APPLICATION ONLY BUILDING: TYPE•CONST. V OCC. GRP. A.P. Number 72-0-37 '0 2.Z Legal Description Project Description tz>ft- Sq. Ft. Size NeWA No. No. Dw. Units Add ❑ Alter ❑ Repair ❑ Demolition ❑ 5timated Valuation PERMIT AMOUNT Plan Chk. Dep. Plan Chk. Bal. Const. Mech. Electrical Plumbing S.M.I. H; 1 i i C Grading Driveway Enc. Infrastructure---� ri Vr Li+uui(li i ii TOTAL REMARKS ZONE: BY: Minimum Setback Distances: Front Setback from Center Line Rear Setback from Rear Prop. Line Side Street Setback from Center Line Side Setback from Property Line FINAL DATE INSPECTOR Issued by: Date Permit Validated by: Validation: WHITE = FINANCE YELLOW = APPLICANT PINK = BUILDING DIVISION 4 Desert Sands Unified School District 47-950 Dune Palms Road Notice: La Quinta, CA 92253 Document Cannot Be Duplicated 760-771-8515 CERTIFICATE OF COMPLIANCE Date 7/31/01 No. 22337 Y. owner NameTradtion Club Associates No. 78-106 Street Coral Lane City La Quinta Tract # Lot # APN# 770-370-022 Jurisdiction La Quinta Permit # Log # Zip 92253 Study Area Square Footage 3631 Type of Development Single Family Residence No. of Units 1 Comments a cashier's check in the amount of $34,921.75 for 5 single family dwellings. At the present time, the Desert Sands Unified School District does not collect fees on garages/carports, covered patios/walkways, residential additions under 500 square feet, detached accessory structures or replacement mobilehomes. It has been determined the above-named owner is exempt from paying school fees at this time due to the following reason: EXEMPTION NOT APPLICA$LE This certifies that school facility fees imposed pursuant to Government Code 53080 in the amount of 2.05 X 3,631 or $ 7,443.55 the property listed above and that building permits and/or Certificates of Occupancy for this square footage in this proposed project may nova+ be issued Fees Paid By CC/Palm Desert Nat'l Bk -Autumn, Andrew Pierce . Telephone Name on the check r.. By Dr. Doris Wilson Superintendent Fee collected /exetopted by Annette Barlow Signature Payment Received Check No $7,443.55 082400 40TICE: Pursuant of Assembly Bill 3081 (CHAP 549, STATS. 1996) this will serve to notify you that the 90 -day approval period in which you may protest the fees or other payment identified above will begin to run from the date on which the building or installation permit for this project is sssued or on which they are paid to the District(s) or to another public entity authorized to :ollect them on the District('s)(s) behalf, whichever is earlier. Collector: Attach a copy of county or city plan check application form to district copy for all waivers. Embossed Original- Building Dept./Applicant Copy - Applicant/Receipt Copy - Accounting JUL-31-2001 14:08 TRADITION GOLF CLUB 760 564 2356 P.01/01 ...... q-radiff'on ARCHITECTURAL DESIGN REVIEW July 31, 2001 Via Pacsimiie 760-777-7011 Ms. Dickie Gormley Building and Safety CITY OF LA Q'UINTA 78-495 Calle Tampico La Quinta, CA 92253 7� Re: Tradition""'-""' ..... old California Village, Swimming Pools Dear Nickie, This letter will serve as ARRC approval to obtain a building permit for the swimming pools at the Old California Village at Tradtion. if you have any questions, please do not hesitate to call. Thank you. Sincerely, Christina J. Dores Architectural Review Coordinator Aid cc: Jody Jones, APC (via fust class mail) c�eey p�,nyNp,ldawgmm�vwOnoee�.�+ 78505 Otn AV&VM 52 — LA QuNTA — CA 92253-1120 PHONE 760/564.3355 -- FAx 760/564-2356 TOTAL P.01 i J Certificate of Occupancy City'of La Quinta Building and Safety Department This Certificate issued pursuant to the requirements of Section 109 of the Uniform Building Code, certifying that, at the time of issuance, this structure was in compliance with the various ordinances of the City regulating building construction or use. For the following: BUILDING ADDRESS: 78-106 CORAL LANE Use Classification: SINGLE FAMILY DWELLING Occupancy Group: R-3 Type of Construction Owner of Building: TRADITION CLUB ASSOCIATES Building Official %/ IU Bldg. Permit No.: 0106-191 Land Use Zone: RL Address: 78-505 OLD AVENUE 52 City: LA QUINTA, CA 92253 By: RICHARD KIRKLAND Date: 06-03-02 POST IN A CONSPICUOUS PLACE SladdenEngineering 6782 Stanton Ave., Suite E, Buena Park, CA 90621 (562) 864-4121 (714) 523-0952 Fax (714) 523-1369 39-725 Garand Ln., Suite G, Palm Desert, CA 92211 (760) 772-3893 Fax (760) 772-3895 March 30, 2001 Project No. 544-1092 01-04-152 Andrew Pierce Company P. O. Box 3420 Palm Desert, California 92261 Attention: Mr. Jodie Jones Project: The Village at Tradition Tract No. 30056 Tradition Golf Club La Quinta, California Subject: Geotechnical Update CITY OF LA QUINTA BUILDING & SAFETY DEPT APPROVE® FOR CONSTRUCTION DATE • Z- 6 BY offn CZ Se't- Ref: 1. Report of Observations and Testing During Rough Grading prepared by Sladden Engineering dated July 30, 1997, Project No. 522-6138-G1. 2. Geotechnical Update prepared by Sladden Engineering dated December 12, 1996, Project No. 444-6130. As requested, we have reviewed the referenced geotechnical reports as they relate to the design and construction of the proposed single family residences. The project site is located within the south end of the Tradition Golf Club development in the City of La Quinta, California. The proposed development will include 13 lots for the construction of single family residences. It is our understanding that the proposed residences will be a relatively lightweight wood frame structure supported by conventional shallow spread footings and concrete slabs on grade. The proposed development will require substantial regrading of the previous rough graded lots along with the construction of various water features and the associated landscaping. The subject lots were previously graded during the rough grading of the Tradition project site. The rough grading included moisture conditioning and recompaction of the native surface soils along with the placement of extensive engineered fill soils to construct the building pads. The site grading is summarized in the referenced Report of Observations and. Testing During Rough Grading along with the associated compaction test results. The referenced reports include recommendations pertaining to the construction of residential building foundations. Based upon our review of the referenced reports, it is our opinion that the structural values included in this referenced grading report remain applicable for the design and szonstruction of the proposed residential structure foundations. The structural values should also be applicable for use in the design of the associated retaining walls and water features. Tile slope `stability calculations performed in conjunction with the preparation of the referenced reports also remain applicable. The planned 2 to 1 slopes .comply with previous recommendations and applicable grading ordinances. March 30, 2001 -2- Project No. 544-1092 01-04-152 Because the lots have been previously rough graded, the remedial grading required at this time for should be minimal. The grading areas should be cleared of surface vegetation, scarified and moisture conditioned prior to precise grading. The exposed surface should be compacted so that a minimum of 90 percent relative compaction is attained prior to fill placement. Fill material should be placed in thin lifts at near optimum moisture content and compacted to at least 90 percent relative compaction. In areas that the grading encroaches upon the existing slopes, proper benching should be performed during fill placement. Allowable Bearing Pressures: The allowable bearing pressures recommended in the grading report prepared by Sladden Engineering remain applicable. Conventional shallow spread footings should be bottomed into properly compacted fill material a minimum of 12 inches below lowest adjacent grade. Continuous footings should be at least 12 inches wide and isolated pad footings Should be at least 2 feet wide. Continuous footings and isolated pad footings should be designed utilizing allowable bearing pressures of 1500 psf. An allowable increase of 200 psf for each additional 6 inches of depth may be utilized if desired. The maximum allowable bearing pressure should be 3000 psf. The recommended allowable bearing pressures may be increased by one- third for wind and seismic loading. Lateral Design: Resistance to lateral loads may be provided by a combination of friction acting at the base of the slabs or foundations and passive earth pressure along the sides of the foundations. A coefficient of friction of 0.48 between soil and concrete may be used with dead load forces only. A passive earth pressure of 300 pounds per square foot, per foot of depth, may be used for the sides of footings, which are poured against properly compacted native soils. Passive earth pressure should be ignored within the upper 1 foot except where confined (such as beneath a floor slab). When used in combination, either the passive resistance or the coefficient of friction should be reduced by one-third. Retaining Walls: Retaining walls may be required to accomplish. the proposed construction. Cantilever retaining walls may be designed using "active" pressures. Active pressures may be estimated using an equivalent fluid weight of 35 pcf for native backfill soils with level free - draining backfill conditions. The recommended active pressure is based upon level free -draining native backfill soils. For sloping backfill conditions, the active pressure must be increased. The active pressure should be increased to 55 pcf EFP when considering backfill sloping at a 2 to 1 (horizontal to vertical) slope angle For walls that are restrained, "at rest" pressures should be utilized in design. At rest pressures may be estimated using an equivalent fluid weight of 55 pcf for native backfill soils with level free -draining backfill conditions. The bearing soils are non -expansive and fall within the "very low" expansion category in accordance with Uniform Building Code (UBC) classification criteria. Pertinent 1997 UBC Seismic Design parameters are summarized on the attached data sheet. March 30, 2001 -3- Project No. 544-1092 01-04-152 If you have questions regarding this letter or the referenced reports, please contact the undersigned. Respectfully submitted, SLADDEN ENGINEERING Brett L. Anderson OD 0�� Principal Engineer it , Y Pdo. C n53s9 )� SER/pc cxp. 9.30-2002/ Copies: 4/Andrew Pierce Corporation 2/The Keith Companies March 30, 2001 e f -4- Project No. 544-1092 01-04-152 1997 UNIFORM BUILDING CODE INFORMATION The International Conference of Building Officials 1997 Uniform Building Code contains substantial revisions and additions to the earthquake engineering section in Chapter 16. Concepts contained in the updated code that will likely be relevant to construction of the proposed structures are summarized below. Ground shaking is expected to be the primary hazard most likely to affect the site, based upon proximity to significant faults capable of generating large earthquakes. Major fault zones considered to be most likely to create strong ground shaking at the site are listed below. Fault Zone Approximate Distance From Site Fault Type 1997 UBC San Andreas 13.5 km A San Jacinto 29 km A Based on our field observations and understanding of local geologic conditions, the soil profile type judged applicable to this site is SD, generally described.as stiff or dense soil. The site is located within UBC Seismic Zone 4. The following table presents additional coefficients and factors relevant to seismic mitigation for new construction upon adoption of the 1997 Bode. il Near -Source Near -Source Seismic Seismic Seismic Acceleration Velocity Coefficient Coefficient Source. Factor, N, Factor, N,, Ca C,, San Andreas 1.0 1.1 0.44 Na 0.64 N„ San Jacinto 1.0 1.0 0.44 Na 0.64 N„ Sladden Eng'ineering 6782 Stanton Ave., Suite E, Buena Park, CA 90621 (562) 864-4121 (714) 523-0952 Fax (714) 523-1369 39-725 Garand Ln., Suite G, Palm Desert, CA 92211 (760) 772-3893 Fax (760) 772-3895 March 30, 2001 Andrew Pierce Company P. O. Box 3420 Palm Desert, California 92261 Attention: Mr. Jodie Jones Project: Tile Village at Tradition Tract No. 30056 Tradition Golf Club La Quinta, California Subject: Geotechnical Update Ref: 1. Report of Observations and Testing During Rough Grading Engineering dated July 30, 1997, Project No. 522-6138-G 1. 2. Geotechnical Update prepared by Sladden Engineering dated Project No. 444-6130. Project No. 544-1092 01-04-152 prepared by Sladden December 12, 1996, As requested, we have reviewed the referenced geotechnical reports as they relate to the design and construction of the proposed single family residences. The project site is located within the south end of the Tradition Golf Club development in the City of La Quinta, California. The proposed development will include 13 lots for the construction of single family residences. It is our understanding that the proposed residences will be a relatively lightweight wood frame structure supported by conventional shallow spread footings and concrete slabs on grade. The proposed development will require substantial regrading of the previous rough graded lots along with the construction of various water features and the associated landscaping. The subject lots were previously graded during the rough grading of the Tradition project site. The rough grading included moisture conditioning and recompact ioil of the native surface soils along with the placement of extensive engineered fill soils to construct the building pads. The site grading is summarized in the referenced Report of Observations and Testing During Rough Grading along with the associated compaction test results. The referenced reports include recommendations pertaining to the construction of residential building foundations. Based upon our review of the referenced reports, it is our opinion that the structural values included in this referenced grading report remain applicable for the design and construction of the proposed residential structure foundations. The structural values should also be applicable for use in the design of the associated retaining walls and water features. The slope stability calculations performed in conjunction with the preparation of the referenced reports also remain applicable. Tile planned 2 to 1 slopes comply with previous recommendations and applicable grading ordinances. March 30, 2001 -2- Project No. 544-1092 01-04-152 Because the lots have been previously rough graded, the remedial grading required at this time for Should be minimal. The grading areas should be cleared of surface vegetation, scarified and moisture conditioned prior to precise grading. The exposed surface should be compacted so that a minimum of 90 percent relative compaction is attained prior to fill placement. Fill material Should be placed in thin lifts at near optimum moisture content and compacted to at least 90 Percent relative compaction. In areas that the grading encroaches upon the existing slopes, proper benching should be performed during fill placement. y Allowable Bearing Pressures: The allowable bearing pressures recommended in the grading report prepared by Sladden Engineering remain applicable. Conventional shallow spread footings should be bottomed into properly compacted fill material a minimum of 12 inches below lowest adjacent grade. Continuous footings should be at least 12 inches wide and isolated pad footings Should be at least 2 feet wide. Continuous footings and isolated pad footings should be designed utilizing allowable bearing pressures of 1500 psf. An allowable increase of 200 psf for each additional 6 inches of depth may be utilized if desired. The maximum allowable bearing pressure Should be 3000 psf. The recommended allowable bearing pressures may be increased by one- third for wind and seismic loading. Lateral Design: Resistance to lateral loads may be provided by a combination of friction acting at the base of the slabs or foundations and passive earth pressure along the sides of the foundations. A coefficient of friction of 0.48 between soil and concrete may be used with dead load forces only. A passive earth pressure of 300 pounds per square foot, per foot of depth, may be used for the sides of footings, which are poured against properly compacted native soils. Passive earth pressure should be ignored within the upper 1 foot except where confined (such as beneath a floor slab). When used in combination, either the passive resistance or the coefficient of friction should be reduced by one-third. Retaining Walls: Retaining walls may be required to accomplish the proposed construction. Cantilever retaining walls may be'designed using "active" pressures. Active pressures may be estimated using an equivalent fluid weight of 35 pcf for native backfill soils with level free - draining backfill conditions. The recornmended active pressure is based upon level free -draining native backfill soils. For sloping backfill conditions, the active pressure must be increased. The active pressure should be increased to 55 pcf EFP when considering backfill sloping at a 2 to 1 (horizontal to vertical) slope angle For walls that are restrained, "at rest" pressures should be utilized in design. At rest pressures may be estimated using an equivalent fluid weight of 55 pcf for native backfill soils with level free -draining backfill conditions. The bearing soils are non -expansive and fall within the "very low" expansion category in "accordance with Uniform Building Code (UBC) classification criteria. Pertinent 1997 UBC Seismic Design parameters are summarized on the attached data sheet. March 30, 2001 -3- Project No. 544-1092 01-04-152- If 1-04-152 If you have questions regarding this letter, or the referenced reports, please contact the undersigned. Respectfully submitted, SLADDEN ENGINEERING Brett L. Anderson Principal Engineer SER/pc Copies: 4/Andrew Pierce Corporation 2/The Keith Companies March 30, 2001 -4- Project No. 544-1092 01-04-152 1997 UNIFORM BUILDING CODE INFORMATION The International Conference of Building Officials 1997 Uniform Building Code contains substantial revisions and additions to the earthquake engineering section in Chapter 16. Concepts contained in the updated code that will likely be relevant to construction of the proposed structures are summarized below. Ground shaking is expected to be the primary hazard most likely to affect the site, based upon proximity to significant faults capable of generating large earthquakes. Major fault zones considered to be most likely to create strong ground shaking at the site are listed below. Fault Zone Approximate Distance From Site Fault Type 1997 UBC San Andreas 13.5 km A San Jacinto 29 km A Based on our field observations and understanding of local geologic conditions, the soil profile type iudged applicable to this site is So, generally described as stiff or dense soil. The site is located within UBC Seismic Zone 4. The following table presents additional coefficients and .factors relevant to seismic mitigation for new construction upon adoption of the 1997 code. Near -Source Near -Source Seismic Seismic Seismic Acceleration Velocity Coefficient Coefficient Source Factor, Na Factor, N,, Ca C„ San Andreas 1.0 1.1 0.44 Na 0.64 N„ San Jacinto 1.0 • 1.0 0.44 Na 0.64 N„