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2002-7344 I/G/CN Dl D 9� city o NGINEERING SERVICES DEPARTMENT Encinitas Capital Improvement Projects District Support Services Field Operations Sand Replenishment/Stormwater Compliance Subdivision Engineering Traffic Engineering July 2, 2003 Attn: Developers Surety and Indemnity Company 17780 Fitch Suite 200 Irvine, California 92614 RE: Pauline Jordan 1036 and 1038 Dewitt Avenue APN 264-540-02 Improvement Plan 7344-1 Partial release of security Permit 7344-1, authorized improvements as shown on approved plan, all needed to build the described project. The Field Operations Division has approved the improvements. Therefore, a reduction in the security deposit is merited. Performance Bond 8269935, in the amount of$23,920.00, may be reduced by 75% to 5,980.00. The document original will be kept until such time it is fully exonerated. The remainder will be released after the one-year warranty inspection is approved. Should you have any questions or concerns,please contact Debra Geishart at(760) 633- 2779 or in writing, attention this Department. Sincerely, /t lO Masih Maher J embach Senior Civil Engineer Finance Manager Field Operations Financial Services CC Jay Lembach,Finance Manager Pauline Jordan Debra Geishart File TEL 760-633-2600 / FAX 760-633-2627 505 S. Vulcan Avenue, Encinitas, California 92024-3633 TDD 760-633-2700 � recycled paper ENGINEERING SERVICES DEPARTMENT cit y O f Capital Improvement Projects ~ District Support Services Encinitas Field Operations Sand Replenishment/Stormwater Compliance Subdivision Engineering Traffic Engineering July 2, 2003 Attn: Developers Surety and Indemnity Company 17780 Fitch Suite 200 Irvine, California 92614 RE: Pauline Jordan 1036 and 1038 Dewitt Avenue APN 264-540-02 Grading Permit 7344-G Final release of security Permit 7344-G authorized earthwork, storm drainage, and erosion control, all needed to build the described project. The Field Operations Division has approved the grading. Therefore, release of the security deposit is merited. Performance Bond 826992S, in the amount of$27,600.00, is hereby fully exonerated. The document original is enclosed. Should you have any questions or concerns,please contact Debra Geishart at(760) 633- 2779 or in writing, attention this Department. Sincerely, Masih Maher J hea h S enior Civil Engineer Finance Manager Financial Services Cc: Jay Lembach,Finance Manager Pauline Jordan Debra Geishart File Enc. TEL 760-633-2600 / FAX 760-633-2627 505 S. Vulcan Avenue, Encinitas, California 92024-3633 TDD 760-633-2700 � recycled paper ^-Ai ENGINEERING SERVICES DEPARTMENT I Capital Improvement Projects u'- City of u District Support Services Encinitas Field Operations Sand Rep lenishment/Stormwater Compliance Subdivision Engineering Traffic Engineering June 29, 2004 Attn: Developers.Surety and Indemnity Company 17780 Fitch Suite 200 Irvine, California 92614 RE: Pauline Jordan 1036 and 1038 Dewitt Avenue APN 264-540-02 Improvement Plan 7344-I Final release of security Permit 7344-I authorized improvements as shown on approved plans, all needed to build the described project. The Field Operations Division has approved the improvements and the one-year warranty period inspection. Therefore, release of the security deposit is merited. Performance Bond 8269935, in the remaining amount of$5,980.00, is hereby fully exonerated. The original amount was $23,920.00. The document original is enclosed. Should you have any questions or concerns, please contact Debra Geishart at (760) 633- 2779 or in writing, attention this Depal�ment. Sincerely, Masih Maher J em ach Senior Civil Engineer Finance Manager Financial Services CC: Jay Lembach, FinanceManager Pauline Jordan Debra Geishart File Enc. TEL 760-633-2600 / FAX 760-633-2627 505 S. Vulcan Avenue, Encinitas, California 92024-3633 TDD 760-633-2700 � recycled paper EAST COUNTY SOIL CONSULTATION & ENGINEERING INC. 10925 HARTLEY ROAD, SUITE I C 2 l SANTEE, CALIFORNIA 92071 (619) 258-7901 Fax 258-7902 October 28, 2002 Pauline Jordan 1527 Tzena Way Encinitas, California 92024 Subject: Project No. 01-1167C1B Report of Field Density Tests, Retaining Wall Backfill Proposed Three-Story Single Family Residence DeWitt Avenue, APN 258-321-12-00 City of Encinitas, California References:1."Report of Field Density Tests, Proposed Three-Story Single Family Residence, DeWitt Avenue, APN 258-321-12-00, City of Encinitas, California," Prepared by East County Sooil Consultation & Engineering Inc., Dated August 05, 2002, Project No. 01-1167C 1 A 2."Limited Site Investigation, Proposed Three-Story Single Family Residence, DeWitt Avenue, APN 258-321-12-00, City of Encinitas, California," Prepared by East County Soil Consultation & Engineering Inc., Dated January 30, 2001, Project no. 01-1167C1 Dear Mrs Jordan: This is to present the results of field density tests performed on the retaining wall backfill for the proposed single family residence to be located on DeWitt Avenue, in the City of Encinitas, California. In accordance with your request, in-place field density tests were performed in conformance with ASTM D1556-90. Backfill was conducted between September 20 and October 24, 2002 under the observation and testing of a representitive of East County Soil Consultation & Engineering Inc. On-site fill soils consisting of silty sand were placed in thin lifts and compacted in excess of 90 percent relative compaction while maintaining a moisture content around optimum. Compaction was achieved with the use of Handwhackers. Jordan Project No. 01-1167C 1 B The results of the field density tests are presented on pages T-1 under "Table of Test Results". The laboratory determinations of the maximum dry density and optimum moisture content of the soils are set forth on page L-1 under "Laboratory Test Results". The approximate test locations are shown on Plate No. 1. Based on our field observation and density testing, it is our opinion that the backfill operation was performed in accordance with the referenced soil report ( Reference No. 2 ) and local grading ordinances. If we can be of further assistance, please do not hesitate to contact our office. Pages T-1, L-1, and Plate No. 1 are parts of this report. Respectfull , . — '9l S.p�F2 Na C M * EYO• 1Z-3i sqT£0CM� Mamadou Saliou Diallo, P.E. RCE 54071 MSD/jm 2 Jordan Project No. 01-1167C 1 B PAGE T-1 TABLE OF TEST RESULTS ASTM D1556-90 MAXIMUM DEPTH FEILD DRY DRY TEST SOIL OF FILL MOISTURE DENSITY DENSITY PERCENT NO. TYPE IN FEET %DRY WT. P.C.F. P.C.F COMPACTION REMARK 1 1 2' 8.6 117,5 126.5 93 2 1 4' 8.1 116.4 126.5 92 3 1 2' 9.8 120.9 126.5 96 4 1 6'FG 9.1 117.9 126.5 93 5 1 2' 8.6 116.5 126.5 92 6 1 2' 5.9 114.7 126.5 91 7 1 4'FG 6.4 116.4 126.5 92 8 1 4'FG 8.2 121.3 126.5 96 FG=FINISH GRADE TESTS 3 Jordan Project No. 01-116 -AB PAGE L-1 LABORATORY TEST RESULTS MAXIMUM DENSITY AND OPTIMUM MOISTURE (ASTM D1557) The maximum dry densities and optimum moisture contents of the _ill materials as determined by ASTM D1557-91, Procedure A and B which uses 25 blows of a 10 pound ilide hammer falling from a height of 18 inches on each of 5 equal layers in a 4 inch diameter 1/30 cubic foot compaction cylinder and Procedure C which uses 56 blows of a 10 pound slide hammer falling from a height of 18 inches on each of 5 equal layers in a 6 inch diameter 1/13.3 cubic foot compaction cylinder are presented as follows: OPTIMUM MAXIMUM MOISTURE DRY DENSITY CONTENT Soil Type/Procedure (Lb/cu. Ft.) (%) 1/A RED BROWN SILTY FINE 126.5 9.0 GRAINED SAND RESULTS OF PARTICLE SIZE ANALYSIS (ASTM D-422) U.S. Standard Percent Sieve Size Passing 1" 100 ''/z" 100 3/8" 99 #4 99 #8 98 #16 97 #30 91 #60 31 #100 16 #200 9 USCS SP-SM 4 3l W • ��� .�/Vs rry 7ZFS75 EAST COUNTY SOIL CONSULTATION & ENGINEERING, INC. v 10925 HARTLEY RD..SUITE I,SANTEE.CA 92071 (619)258-7901 Fax(619)258-7902 1 RECORDED REQUEST OF ) C 2002-0478511 T First American Title y: DO SUBDIVISION MAPPING DEPT. ) JUN pp City of Encinitas ) GFFIGUA RECORDS When Recorded Mail to: 1 SCI DIEGO COL14TY RECOF:DER`S DFFIL CKGORY J. SVIIII1. CCtlly RE10DER City Clerk 009923 FEES: 0.00 City of Encinitas ) : ;41a 505 South Vulcan Avenue ) Encinitas, CA 92024 ) C rt FOR THE BENEFIT OF THE CITY )SPACE ABOVE FOR RE' 2 2-0478511 �l -Z DRAINAGE EASEMENT Assessor's Parcel No. Project No.: 01-096 258-321-12 W.O. No.: 7344-G PAULINE JORDAN A MARRIED WOMAN AS HER SOLE AND SEPARATE PROPERTY, hereinafter designated Grantors do hereby grant, bargain, convey and release unto the City of Encinitas, herein designated Grantee, its successors and assigns, a perpetual easement and right-of-way upon, through, under, over and across the hereinafter described real property for the installation, construction, maintenance, repair, replacement, reconstruction and inspection of an enclosed flood DRAINAGE channel and all structures incidental thereto, and for the flowage of any waters in, over, upon or through said channel, together with the perpetual right to remove trees, bushes, undergrowth, and any other obstruction interfering with the use of said easement and right-of-way by the Grantee, its successors or assigns. To have and to hold said easement and right-of-way unto itself and unto its successors and assigns forever together with the right to convey said easement, or any portion of said easement, to other public agencies. The real property referred to herein above and made subject to said easement and right-of-way by this grant is situated in the City of Encinitas, County of San Diego, State of California, and is particularly described as follows: SEE EXHIBIT A ATTACHED HERETO :DND MADE A PART HEREOF BY THIS REFERENCE, The Grantee, its successors and assigns, shall be responsible for operating, maintaining, and keeping in good repair the above-described works of improvement. Drainage easement JORDAN 00-096 1 009924 s f .. The Grantor, his successors and assigns, reserves the right to enclose in a manner approved by the Grantee, its successors and assigns, any portion of an unenclosed flood drainage channel provided such enclosure is constructed or installed by a licensed contractor in accordance with plans and specifications approved by and to the satisfaction of the Grantee, its successors and assigns. In granting its approval, the Grantee, its successors and assigns, ttractor o�sG Grantor of fl an adequate form' of but not limited to, the filing by the con security, as approved by the City Engineer, to guarantee completion of the work. There is reserved to the Grantor, his successors and assigns, the right and privilege to use the above described land of the Grantor at any time, in any manner and for any purpose not inconsistent with the full use and enjoyment by the Grantee, its successors and assigns, of the rights and privileges herein granted. Dated this 2-S day of I v l , 2002. Gran r: P uline Jor an Signature of Owners to be notarized. Attach the appropriate acknowledgments. I certify on behalf of the City Council of the City of Encinitas, pursuant to authority conferred by Resolution No. 94-107 of said Council adopted on November 9, 1994 that the City of Encinitas accepts and consents to the making of the foregoing DRAINAGE EASEMENT Dedication and consents to recordation thereof by its duly authorized officer. Date: By: Leroy Bo as Director of Engineering Services City of Encinitas Drainage easement JORDAN 00-096 2 A"LL-FbRPOSE ACKNOWLEDGEMENT 009925 State of California SS. County of San Diego Ncal Ganz On before me, 11"TARY) ' (�Z i personally appeared ' su,.eROs) � personally known tome - OR - %� proved to me on the basis of satisfactory evidence to be the person(s) whose name(s) is/are subscribed to the within instrument and acknowledged to me that he/she/they executed the same in his/her/their authorized capacity(ies). and that by his/her/their „i...,,.w...*� signatures(s) on the instrument the person(s), oFFIC�GANZ or the entity upon behalf of which the NOTARYIPUBUC-CALIFORNIA$ person(s) acted, executed the instrument. COMM.NO.1309685 Cr SAN DIEGO COUNTY MY COMM.EXP.JULY 16,2005 WITNESS my hand and official seal. NOTARY' IGNATURE OPTIONAL INFORMATION The information below is not required by law. However, it could prevent fraudulent attachment of this acknowl- edgement to an unauthorized document. CAPACITY CLAIMED BY SIGNER (PRINCIPAL) DESCRIPTION OF ATTACHED DOCUMENT F1 INDIVIDUAL [] CORPORATE OFFICER TITLE OR TYPE OF DOCUMENT 11IL"sl PARTNER(S) NUMBER OF PAGES [� ATTORNEY-IN-FACT TRUSTEE(S) GUARDIAN/CONSERVATOR DATE OF DOCUMENT OTHER: OTHER e r SIGNER IS REPRESENTING: RIGHT THUMBPRINT a NAME OF PERSON OF S)OR ENTITY(IES) E r SIGNER o S APA 5/99 VALLEY-SIERRA. 800-362-3369 ' 009926 EXHIBIT"A" LEGAL DESCRIPTION THE NORTHERLY 5.00 (FIVE) FEET MEASURED AT RIGHT ANGLES TO THE NORTHERLY LINE OF THE FOLLOWING DESCRIBED PROPERTY: LOT 5 IN BLOCK 10A OF STURGES AND RATTON'S SUBDIVISION OF EAST BLOCK 10 OF ENCINITAS, IN THE CITY OF ENCINITAS, COUNTY OF SAN DIEGO, STATE OF CALIFORNIA, ACCORDING TO MAP THEREOF NO. 33, FILED IN THE OFFICE OF THE COUNTY RECORDER OF SAN DIEGO COUNTY,MARCH 19, 1887. ALSO THAT PORTION OF THE WEST 10 FEET OF DE WITT AVENUE LYING EAST OF AND ADJACENT TO SAID LOT, AS VACATED AND CLOSED TO PUBLIC USE BY RESOLUTION OF THE BOARD OF SUPERVISORS OF SAN DIEGO COUNTY, A CERTIFIED COPY OF WHICH WAS RECORDED SEPTEMBER 15, 1949,IN BOOK 3319,PAGE 345 OF OFFICIAL RECORDS. DOC ,. 2002-0500137 JUN 12P 2002 4 : 24 PM Recording Requested by: ) OFFICIAL RECORDS City Engineer ) SM DIEGO COMITY RECORDER'S OFFICE GREGORY J. SHITHP COIWY RECORDER When Recorded Mail To: ) FEES: 17.00 City Clerk ) City of Encinitas ) 505 South Vulcan Avenue ) rf Encinitas CA 92024 ) SPACE ABOVE FOR RECORDER'S USE b COVENANT REGARDING REAL PROPERTY 0," WAIVER OF PROTEST TO ASSESSMENTS I � Asse sor' s Parcel Number: 258-321-12 Project No. O1-096 TPM A. PAULINE JORDAN, A MARRIED WOMAN AS HER SOLE AND SEPARATE PROPETY as, ("OWNER" hereinafter) is the owner of real property which is commonly known as TPM 01-096, ("PROPERTY" hereinafter) and which is legally described as follows : See Attachment "A" which is attached hereto and made a part hereof . B. In consideration of TPM 01-096 OWNER hereby covenants and agrees for the benefit of CITY, to do the following: No protest shall be made by the owners to any proceedings for the installation or acquisition of street improvements, including undergrounding of utility lines, under any special assessment 1911 or the Municipal Improvement Act of 1913 , or any other applicable state or local law, and whether processed by the City of Encinitas or any other governmental entity having jurisdiction in the matter and for the purposes of determining property owners support for same . C. This Covenant shall run with the land and be binding upon and inure to the benefit of the future owners, encumbrancers, successors, heirs, personal representatives, transferees and assigns of the respective parties . D. OWNER agrees that OWNER' s duties and obligations under this Covenant are a lien upon the PROPERTY. Upon notice and opportunity to respond, CITY may add to the property tax bill of the PROPERTY any past due financial obligation owing to CITY by way of this Covenant . waiver. doc JORDAN 01-096 FEB 10 2002 HYDROLOGY REPORT JORDAN RESIDENCE 1036 & 1038 DEWITT AVENUE ENCINITAS, CA Prepared for: Pauline Jordan 1527 Tzena Way Encinitas, CA 92024 w n Prepared by: .. r1 �" ct No.29 2 7 Exp. 3/:31/03 ; �' v`� '` r bNA, Inc. Op and planning, civil engineering, surveying 5115 Avenida Encinas, Suite L Carlsbad, CA 92008-4387 (760) 931-8700 January 11, 2002 **************************************************************************** RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM PACKAGE Reference: SAN DIEGO COUNTY FLOOD CONTROL DISTRICT 1985, 1981 HYDROLOGY MANUAL (c) Copyright 1982-98 Advanced Engineering Software (aes) Ver. 1.5A Release Date: 01/01/98 License ID 1459 Analysis prepared by: BHA INC. 5115 AVENDIA ENCINAS, SUITE L CARLSBAD, CA 92008 ************************** DESCRIPTION OF STUDY ************************** * PROPOSED HYDROLOGY FOR 100 YEAR STORM EVENT * * ************************************************************************** FILE NAME: JORDON.DAT TIME/DATE OF STUDY: 17:38 1/10/2002 ---------------------------------------------------------------------------- USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: ---------------------------------------------------------------------------- 1985 SAN DIEGO MANUAL CRITERIA USER SPECIFIED STORM EVENT(YEAR) = 100.00 6-HOUR DURATION PRECIPITATION (INCHES) = 2.700 SPECIFIED MINIMUM PIPE SIZE(INCH) = 18.00 SPECIFIED PERCENT OF GRADIENTS (DECIMAL) TO USE FOR FRICTION SLOPE = .90 SAN DIEGO HYDROLOGY MANUAL "C"-VALUES USED NOTE: ONLY PEAK CONFLUENCE VALUES CONSIDERED **************************************************************************** FLOW PROCESS FROM NODE 100.00 TO NODE 120.00 IS CODE = 21 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< SOIL CLASSIFICATION IS "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-LENGTH = 370.00 UPSTREAM ELEVATION = 160.00 DOWNSTREAM ELEVATION = 134.40 ELEVATION DIFFERENCE = 25.60 URBAN SUBAREA OVERLAND TIME OF FLOW(MINUTES) = 9.994 *CAUTION: SUBAREA SLOPE EXCEEDS COUNTY NOMOGRAPH DEFINITION. EXTRAPOLATION OF NOMOGRAPH USED. 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 4.551 SUBAREA RUNOFF(CFS) = 2.50 TOTAL AREA(ACRES) = 1.00 TOTAL RUNOFF(CFS) = 2.50 **************************************************************************** 1 FLOW PROCESS FROM NODE 120.00 TO NODE 120.00 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< TOTAL NUMBER OF STREAMS = 2 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MIN. ) = 9.99 RAINFALL INTENSITY(INCH/HR) = 4.55 TOTAL STREAM AREA(ACRES) = 1.00 PEAK FLOW RATE(CFS) AT CONFLUENCE = 2.50 **************************************************************************** FLOW PROCESS FROM NODE 110.00 TO NODE 120.00 IS CODE = 21 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ------------------------- SOIL CLASSIFICATION IS "D" SINGLE FAMILY DEVELOPMENT RUNOFF COEFFICIENT = .5500 INITIAL SUBAREA FLOW-LENGTH = 220.00 UPSTREAM ELEVATION = 140.00 DOWNSTREAM ELEVATION = 134.40 ELEVATION DIFFERENCE = 5.60 URBAN SUBAREA OVERLAND TIME OF FLOW(MINUTES) = 10.755 *CAUTION: SUBAREA SLOPE EXCEEDS COUNTY NOMOGRAPH DEFINITION. EXTRAPOLATION OF NOMOGRAPH USED. 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 4.341 SUBAREA RUNOFF(CFS) = 1. 19 TOTAL AREA(ACRES) _ .50 TOTAL RUNOFF(CFS) = 1.19 **************************************************************************** FLOW PROCESS FROM NODE 120. 00 TO NODE 120.00 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< »»>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES««< TOTAL NUMBER OF STREAMS = 2 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MIN. ) = 10.75 RAINFALL INTENSITY(INCH/HR) = 4.34 TOTAL STREAM AREA(ACRES) = .50 PEAK FLOW RATE(CFS) AT CONFLUENCE = 1. 19 ** CONFLUENCE DATA ** STREAM RUNOFF Tc INTENSITY AREA NUMBER (CFS) (MIN. ) (INCH/HOUR) (ACRE) 1 2.50 9.99 4.551 1.00 2 1. 19 10.75 4.341 .50 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. ** PEAK FLOW RATE TABLE ** STREAM RUNOFF Tc INTENSITY NUMBER (CFS) (MIN. ) (INCH/HOUR) 1 3.64 9.99 4.551 2 2 3.58 10.75 4.341 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 3. 64 Tc(MIN. ) = 9.99 TOTAL AREA(ACRES) = 1.50 FLOW PROCESS FROM NODE 120.00 TO NODE 120.10 IS CODE = 4 ---------------------------------------------------------------------------- »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< DEPTH OF FLOW IN 18.0 INCH PIPE IS 3.7 INCHES PIPEFLOW VELOCITY(FEET/SEC. ) = 14.0 UPSTREAM NODE ELEVATION = 124.43 DOWNSTREAM NODE ELEVATION = 106.47 FLOWLENGTH(FEET) = 113.41 MANNING'S N = .013 GIVEN PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 3.64 TRAVEL TIME(MIN. ) _ .14 TC(MIN. ) = 10.13 FLOW PROCESS FROM NODE 120.10 TO NODE 120.20 IS CODE = 4 ---------------------------------------------------------------------------- »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING USER-SPECIFIED PIPESIZE««< DEPTH OF FLOW IN 18.0 INCH PIPE IS 6.3 INCHES PIPEFLOW VELOCITY(FEET/SEC. ) = 6.6 UPSTREAM NODE ELEVATION = 106.39 DOWNSTREAM NODE ELEVATION = 106.00 FLOWLENGTH(FEET) = 20.40 MANNING'S N = .013 GIVEN PIPE DIAMETER(INCH) = 18. 00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 3.64 TRAVEL TIME(MIN. ) _ .05 TC(MIN. ) = 10.18 END OF STUDY SUMMARY: PEAK FLOW RATE(CFS) = 3. 64 Tc(MIN. ) = 10.18 TOTAL AREA(ACRES) = 1.50 END OF RATIONAL METHOD ANALYSIS 3 CHART 1-103.6C i.o I2 to .9 I� C 8 4 8 v 4 3)/L-- D,0 'T = 3 J !1 •E 1.5 T W = / W W Z = O Z Z .s _ o /•� z W . 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Pb � E K Tf.• i VV 11� y r l TABLE- 15 (3/4) 1 I INTERPRETATIONS FOR LAND MANAGEMENT KEY TO INTERPRETATION RATING SYMBOLS: HYDROLOGIC SOIL GROUPS: LIMITATIONS: A - HIGH 1NFILTRAT/0N RATE SL - SLIGHT DEGREE OF LIMITATION B MODERATE INFILTRATION RATE M - MODERATE DEGREE OF LIMITATION SLOW INFILTRATION RATE SE - SEVERE DEGREE OF LIMITATION rl D VERY SLOWINFILTRAT/ONRATE Interpretation Ratingb Interpretation Ratingb Soil Map o g Soil Map o o Symbol' Erodibility by Water >m M Symbol' o Erodibility by Water m > ° ooh > ° oaf C.0 Lo (1) (2) (3) (4) (1) '(2) (3) (4) InA C SE (str) Lu B SE (str) SL InB C SE (str) LvF3 _.� IoA C SE (str) (Lu) D SE (sip) SE IsA C SE (str) (Hr) D SE (sip) SE KcC B SE (txt) SL 9 Md D KcD2 B SE (txt) SL s MI A SE (txt) SL IE SE (txt) SL LaE2 A SE (txt) SL s SE (str) LaE3 A SE (txt) SE 9 Mn6 B SE (str) LcE A SE (txt) M 9 MoA B SE (str) -' LcE2 A SE (txt) M 9 MpA2 B SE (str) LcF2 A SE (sip) M 9 MrG D SE (sip) SE LdE c MvA A SE (txt) SL 9 (La) A SE (txt) M 9 MvC A SE (txt) SL 9 (Sp) C SE (txt) M 9 MvD A SE (txt) SL 9 "-� LdG c MxA D SE (txt) SL 9 (La) A SE (sip) M 9 (Sp) C SE (sip) M 9 OhC D SE (str) SL LeC D SE (txt) SL OhE D SE (str) SL T! LeC2 D SE (txt) SL OhF D SE (sip) M LeD D SE (txt) SL OkC LeD2 D SE (txt) SL (Oh) D LeE D SE (txt) SL (Ur) D LeE2 D SE (txt) SL OkE LeE3 D SE (txt) SE (Oh) D LfC ° (Ur) D (Le) D (Ur) D PeA D SE (dpt) SL LfE c PeC D SE (dpt) SL (Le) D PeC2 D SE (dpt) SL (Ur) D PeD2 D SE (dpt) SL LpB D M (txt) SL PfA D SE (str) SL LpC D M (txt) SL PfC D SE (str) SL LpC2 D M (txt) SL Py D M (txt) LpD2 D M (txt) SL LpE2 D M (sip) SL RaA C SE (str) SL LrE D M (sip) M RaB C SE (str) SL LrE2 D M (sip) M RaC C SE (str) SL _ LrG D SE (sip) M RaC2 C SE (str) SL LsE C M (txt) M RaD2 C SE (str) SL LSF C SE (sip) M RcD C SE (std) SL —� 95 J 5 EAST COUNTY SOIL CONSULTATIONt JAN 1 4 ZOOZ AND ENGINEERING,INC. F` f- - .., --- — 2 EN61Ntr.H6UE9RES 10925 Hartley Road, Suite I CITYOFENCiNITAA -,_ Santee, California 92071 (619) 258-7901 Fax 258-7902 January 30, 2001 Pauline Jordan 1385 Trabert Ranch Road Encinitas, California 92024 Subject: Project No. 01-1167C1 Limited Site Investigation Proposed Three-Story Single-Family Residence Dewitt Avenue, APN 258-321-12-00 City of Encinitas, California. Dear Mrs . Jordan: In accordance with your request, we have performed a limited investigation of the soil conditions at the subject site . The investigation was undertaken to provide the soil engineering criteria for site grading and recommend an appropiate foundation system for the proposed three-story single-family residence . The subject site was found to be underlain by Terrace Deposits to the explored depth of six (6) feet within the limits of the proposed development . These Terrace Deposits generally consists of reddish brown, fine-grained sandstone exhibiting a very low potential for expansion. Consistency ranges from loose to a depth of three (3) feet and medium dense at greater depths . It is our opinion that the proposed development is feasible provided the recommendations herein are implemented during construction. Respectfully submitted, Mamadou a iou Diallo, P. E. RCE 54071 MSD/jm JORDAN PROJECT NO. 01-1167C1 INTRODUCTION This is to present the findings and conclusions of a soils investigation for the proposed three-story single-family residence located on the west side of Dewitt Avenue, in the City of Encinitas, California . The objectives of the investigation were to determine the existing soils conditions and provide recommendations for site development . In order to accomplish these objectives, three exploratory holes were excavated to a maximum depth of 6 feet; undisturbed and loose bag samples were obtained, and laboratory tests were performed. SITE DESCRIPTION AND PROPOSED CONSTRUCTION The subject site is located on the west side of Dewitt Avenue, in the City of Encinitas, California. The site slopes moderately to the west and is bounded by existing single- family residences and an existing park to the west. It is our understanding that the proposed development consists of a three-story, wood-framed, single-family dwelling to be founded on continuous footings with a slab-on-grade floor system. According to the project structural engineer, anticipated loads are approximately 2000 pounds per lineal foot for the continuous footings . FIELD INVESTIGATION Three exploratory holes were excavated with a shovel and a hand auger to a maximum depth of six (6) feet on January 03, 2001 at the approximate location shown on the attached Plate No. 1, entitled "Location of Exploratory Holes" . A continuous log of the soils encountered was recorded at the time of excavation and is shown on the attached Plate No. 2, entitled "Summary Sheet" . The soils were visually and texturally classified according to the filed identification procedures set forth on the attached Plate No. 3 entitled "Uniform Soil Classification Chart" . 2 JORDAN PROJECT NO. 01-1167C1 SURFACE CONDITIONS The surface soils encountered during the course of our investigation were Terrace Deposits consisting of reddish brown, fine grained sandstone. Consistency ranges from loose to the depth of three feet to medium dense to the explored depth of six feet . EXPANSIVE SOILS An expansion index test was performed on a sample of the subgrade soil encountered to determine volumetric change characteristics with change in moisture content . An expansion index of 0 indicates a very low potential for expansion. GROUNDWATER Ground water was not encountered during the course of our investigation. We do not expect the ground water table to affect the proposed improvements . GEOLOGIC HAZARDS A review of the available geological literature pertaining to the site indicates the existence of the Rose Canyon Fault Zone approximately 12 Km to the west . Ground shaking from this fault or one of the major active faults in the region is the most likely happening to affect the site. With respect to this hazard, the site is comparable to others in the general area. The proposed residential structures should be designed in accordance with seismic design requirements of the 1997 Uniform Building Code or the Structural Engineers Association of California using the following seismic design parameters : PARAMETER VALUE UBC REFERENCE Seismic Zone Factor, Z 0.40 Table 16-I Soil Profile Type Sp Table 16-J Seismic Coefficient, Ca 0.44 Table 16-Q Seismic Coefficient, Cv 0.64 Table 16-R Near-Source Factor,Na 1.0 Table 16-S Near-Source Factor,Nv 1.0 Table 16-T Seismic Source B Table 16-U Based on the absence of shallow ground water, type and consistency of the soil deposit, it is our opinion that the potential for liquefaction is low. 3 JORDAN PROJECT NO. 01-1167C1 CONCLUSIONS AND RECOMMENDATIONS The following conclusions and recommendations are based upon the analysis of the data and information obtained from our soil investigation. This includes visual inspection; field investigation; laboratory testing and our general knowledge of the soils native to the site . The site is suitable for the proposed construction provided the recommendations set forth are implemented during construction. GRADING AND EARTHWORK Site grading should begin with clearing and grubbing, e. g. the removal of vegetation, debris and deleterious materials . It is our understanding that the building pad will be undercut to a depth of app.'roximately nine (9) feet below existing grade to meet proosed finish elevations . It is anticipated that the building pad will be founded in cut . Therefore, we recommend that the upper 12 inches of subgrade be scarified, moisture conditioned to near optimum and recommpacted to a minimum of 90 percent relative compaction. If a transition between cut and fill occurs under the building pad, we recommend that the upper three (3) feet of subgrade soils be overexcavated, moisture conditioned to near optimum, and compacted to a minimum of 90 percent relative compaction. The actual depth and extent of removal should be evaluated in the field at the time of excavation by a representative of this firm. Grading should be done in accordance with the attached appendix A. FOUNDATION AND SLAB a . Continuous footings and/or spread footings are suitable for use . Continuous footings shall extend a minimum of 24 inches for the three-story structure into the native soils, and should be a minimum of 18 inches in width. The footing should be reinforced with a minimum of four #4 steel bars; two bars placed near the top of the footings and the other two bars placed near the bottom of the footings . The reinforcing steel should be verified by the project structural engineer. b. Concrete floor slabs should be a minimum 4 inches thick. Reinforcement should consist of #3 bars placed at 16 inches on center each way. Slab reinforcement should be placed within the middle third of the slab by supporting the steel 4 JORDAN PROJECT NO. 01-1167C1 on chairs or concrete blocks "dobies" . The slab should be underlain by 2 inches of clean sand over a 10-mil visqueen moisture barrier. The effect of concrete shrinkage will result in cracks in virtually all concrete slabs . To reduce the extent of shrinkage, the concrete should be placed at a maximum of 4 inch slump. The minimum steel recommended is not intended to prevent shrinkage cracks . c. Where moisture sensitive floor coverings are anticipated over the slab, the 10 mil plastic moisture barrier should be underlain by a capillary break at least 4 inches thick, consisting of sand, gravel or crushed rock not exceeding 3/4 inch in size with no more than 5 percent passing the #200 sieve . d. An allowable soil bearing value of 2000 pounds per square foot may be used when designing continuous foundations and spread footings at least 18 inches wide and founded a minimum of 24 inches into the native soil . This value may be increased by 550 pounds per square foot for each additional foot of depth and 220 pounds per square foot for each additional foot of width to a maximum value of 6000 lb/ft2 . e. Lateral resistance to horizontal movement may be provided by the soil passive pressure and the friction of concrete to soil. . An allowable passive pressure of 250 pounds per square foot per foot of depth may be used. A coefficient of friction of . 35 is recommended. The passive pressure as well as the soil bearing value may be increased by 1/3 for wind and seismic loading. RETAINING WALLS Unrestrained, cantilevered retaining walls with level backfill should be designed to resist an active equivalent fluid .pressure of 35 pounds per cubic foot . This pressure is based on the backfill soils being free draining and non- expansive . On-site soils are suitable for backfill and must be approved by the soils engineer prior to use . Restrained walls, such as basement walls, that are not free to rotate should be designed to resist an active equivalent fluid pressure of 55 pounds per cubic foot . SETTLEMENT Because of the type and consistancy of the subgrade soils (sandstone) , settlement should be within acceptable limits . 5 JORDAN PROJECT NO. 01-1167C1 DRAINAGE Adequate measures shall be undertaken to properly finish grade the site after the structures and other improvements are in place, such that the drainage water within the site and adjacent properties is directed away from the foundations, footings, floor slabs and the tops of slopes via surface swales and subsurface drains towards the natural drainage for this area. Proper surface and subsurface drainage will be required to minimize the potential of water seeking the level of the bearing soils under the foundations, footings and floor slabs, which may otherwise result in undermining and differential settlement of the structures and other improvements . LIMITATIONS OF INVESTIGATION The recommendations of this report pertain only to the site investigated and based upon the assumption that the soil conditions do not deviate from those disclosed in the holes . If any variations or undesirable conditions are encountered during construction, or if the proposed construction will differ from that planned at the present time, East County Soil Consultation and Engineering, Inc. should be notified so that supplemental recommendations can be provided. Page L-1, Plates No. 1 through 3, Shear Test results, References and Appendix A are parts of this report . Respectfully submitted, O!g No.C 054071 rn Mamadou Saliou Diallo, P. E. RCE 54071 J' CML % MSD/jm 9TFOF CA1-�ti0�`. 6 8 yFp(f Z 1 EAST COUNTY SOIL CONSULTATION &ENGINEERING, INC. 10925 HARTLEY RD.,SUITE I,SANTEE,CA 92071 SOILS-FOUNDATIONS 2w- l v,1- 7C/ JORDAN PROJECT NO. 01-1167C1 PLATE NO. 2 SUMMARY SHEET NO. 1 HOLE NO. 1 DEPTH SOIL DESCRIPTION Y M Surface TERRACED DEPOSITS medium brown, damp, loose, fine grained sand (SP-SM) (Qt2) 1 . 0' red brown, damp, loose, 3 . 1 fine grained sand 3 . 0' tan brown, damp,medium dense, fine grained sand 5 . 0' bottom of hole, hole backfilled 1-03-01 ------------------------------------------------------------ HOLE NO. 2 DEPTH SOIL DESCRIPTION Y M Surface TERRACED DEPOSITS medium brown, dry, loose fine grained sand 1 . 0' red brown, damp, loose, fine grained sand 3 . 0' tan brown, damp, medium dense, 2 . 8 fine grained sand 5 . 0 \\ N% IN bottom of hole, hole backfilled on 1-03-01 ------------------------------------------------------------ HOLE NO. 3 DEPTH SOIL DESCRIPTION Y M Surface TERRACED DEPOSITS medium brown, dry, loose fine grained sand 1 . 0' red brown, damp, loose fine grained sand 2 . 0 IN NN NN 4 . 0' tan brown, damp, medium dense fine grained sand bottom of hole, hole backfilled on 1-03-01 ----------------------------------------------- 7 MAJOR DIVISIONS SYMBOL DESCRIPTION GW WELL GRADED GRAVELS OR GRAVEL-SAND MIXTURES,LITTLE OR NO FINES GRAVELS GP (MORE THAN%= POORLY GRADED GRAVELS OR GRAVEL-SAND OF COARSE MIXTURES,LITTLE OR NO FINES FRACTION GM SILTY GRAVELS,GRAVEL-SAND-SILT MIXTURES >NO.4 SIEVE COARSE SIZE) GC CLAYEY GRAVELS,GRAVEL-SAND-CLAY MIXTURES GRAINED SOILS (MORE THAN%OF SOIL> Sw NO.200 SIEVE SIZE) WELL GRADED SANDS OR GRAVELLY SANDS, LITTLE OR NO FINES SANDS SP (MORE THAN'/: POORLY GRADED SANDS OR GRAVELLY SANDS, OF COARSE LITTLE OR NO FINES FRACTION SM SILTY SANDS,SILT-SAND MIXTURES <NO.4 SIEVE SIZE) SC CLAYEY SANDS,SAND-CLAY MIXTURES ML INORGANIC SILTS AND VERY FINE SANDS,ROCK FLOUR,SILTY OR CLAYEY FINE SANDS OR CLAYEY SILTS & SILTS WITH SLIGHT PLASTICITY CLAYS CL INORGANIC CLAYS OF LOW TO MEDIUM LIQUID LIMIT PLASTICITY,GRAVELLY CLAYS,SANDY CLAYS, SILTY CLAYS,LEAN CLAYS FINE GRAINED <50 OL ORGANIC SILTS O DO ASTI ITYILTY CLAYS OF SOILS (MORE THAN%:OF SOIL< NO.200 SIEVE SIZE) NIH INORGANIC SILTS,MICACEOUS OR DIATOMACEOUS SILTS & FINE SANDY OR SILTY SOILS,ELASTIC SILTS CLAYS CH LIQUID LIMIT INORGANIC CLAYS OF HIGH PLASTICITY,FAT >50 CLAYS OH ORGANIC CLAYS OF MEDIUM TO HIGH PLASTICITY, ORGANIC SILTY CLAYS,ORGANIC SILTS HIGHLY ORGANIC SOILS Pt PEAT AND OTHER HIGHLY ORGAMC SOILS CLASSIFICATION CHART(UNIFIED SOIL CLASSIFICATION SYSTEM) �o CLASSIFICATION RANGE OF GRAIN SIZES U.S.STANDARD GRAIN SIZE IN aO SIEVE SIZE MILLIMETERS % so BOULDERS Above 12 Inches Above 305 COBBLES 12 Inches To 3 Inches 305 To 76.2 'O GRAVEL 3 Inches to No.4 76.2 to 4.76 � Jo Coarse 3 Inches to'/.Inch 76.2 to 19.1 a l Fine '/4 Inch to No.4 19.1 to 4.76 I SAND No.4 to No.200 4.76 to 0.074 NMa 6m Coarse No.4 to No. 10 4.76 to 2.00 �o Medium No. 10 to No.40 2.00 to 0.420 u�c— Fine No.40 to No.200 0.420 to 0.074 ° o io 20 Jo .o so ao 70 a° so i°o SILT AND CLAY Below No.200 1 Below 0.074 uowo uwr (u). r GRAIN SIZE CHART PLASTICITY CHART EAST COUNTY SOIL CONSULTATION AND ENGINEERING, INC. 10925 HARTLEY ROAD,SUITE "I" JORDAN PROJECT PLATE 3 SANTEE, CALIFORNIA 92071 U.S.C.S. SOIL CLASSIFICATION JORDAN PROJECT NO. 01-1167C1 LABORATORY TEST RESULTS PAGE L-1 The maximum dry densities and optimum moisture contents of the fill materials as determined by ASTM Dl 557-91, Procedure A and B which uses 25 blows of a 10 pound slide hammer falling from a height of 18 inches on each of 5 equal layers in a 4 inch diameter 1/30 cubic foot compaction cylinder and Procedure C which uses 56 blows of a 10 pound slide hammer falling from a height of 18 inches on each of 5 equal layers in a 6 inch diameter 1/13.3 cubic foot compaction cylinder are presented as follows: OPTIMUM MAXIMUM MOISTURE DRY DENSITY CONTENT SOIL TYPE/PROCEDURE LB/CU. FT. % DRY WT. Hole No. 3 @ 1.5' 1/A Medium brown silty fine 126.0 9.0 grained sand An expansion test in conformance with UBC 18-2 was performed on a representative sample of on-site soils to determine volumetric change characteristics with change in moisture content. The recorded expansion of the sample is presented as follows: INITIAL SATURATED INITIAL DRY MOISTURE MOISTURE DENSITY EXPANSION CONTENT% CONTENT% LB./CU. FT. INDEX 9.0 17.6 113.4 0 8 DIRECT SHEAR SUMMARY i 5000 4500 j 4000 -- � 3500 --- --.. a 3000 - j I i W H 2500 I _ 2000 1500 i 1000 500 - 0 0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 NORMAL STRESS [PSF] (2 13/32" SAMPLE) 2M (0.545) 1 L (1.093) 2L(2.185) ANGLE OF COHESION INTERNAL INTERCEPT SAMPLE DESCRIPTION FRICTION (PSF) Dewitt Undisturbed 27 ° 50 SOUTHERN CALIFORNIA DEWITT SC SOIL &TESTING, INC. BY: DBA/SO DATE: 01-11-01 S T, _. JOB NUMBER: 0012031 IPLATE NO.: 1 JORDAN PROJECT NO. 01-1167C1 REFERENCES 1 . 111997 Edition, Uniform Building Code, Volume 2, Structural Engineering and Design Provisions" . 2 . "Maps of Known Active Fault Near-Source Zones in California and Adjacent Portions of Nevada", Page 0-36, used with the 1997 Edition of the Uniform Building Code, Published by International Conference of Building Officials . 3 . "Geologic Map of the Encinitas and Rancho Sante Fe 7 . 5' Quadangles, San Diego County, California, by Siang S . Tan and Michael P. Kennedy 1996. 9 EAST COUNTY SOIL CONSULTATION AND ENGINEERING, INC. 10925 HARTLEY ROAD, SUITE I SANTEE, CALIFORNIA 92071 (619) 258-7901 APPENDIX A RECOMMENDED EARTHWORK SPECIFICATIONS 1. General Description The intent of these specifications is to obtain uniformity and adequate strength in filled ground so that the proposed structures may be safely supported. The procedures include the clearing and preparation of the land to be filled, processing the fill soils, the spreading, and compaction of the filled areas to conform with the lines and grades as shown on the approved plans. The owner shall retain a Civil Engineer qualified in soil mechanics (herein referred to as engineer) to inspect and test earthwork in accordance with these specifications. The engineer shall advise the owner and grading contractor immediately if any unsatisfactory conditions are observed to exist and shall have the authority to reject the compacted filled ground until such time that corrective measures are taken, necessary to comply with the specifications. It shall be the sole responsibility of the grading contractor to achieve the specified degree of compaction. 2. Preparing Areas to be Filled (a) All brush, vegetation and any biodegradable refuse shall be removed or otherwise disposed of so as to leave the areas to be filled free of vegetation and debris. Any uncompacted filled ground or loose compressible natural ground shall be removed unless the report recommends otherwise. Any buried tanks or other structures shall be removed and the depression backfilled to the satisfaction of the engineer. (b) The natural ground which is determined to be satisfactory for the support of the filled ground shall then be plowed or scarified to a depth of at least 12 inches (12"). (c) After the natural ground has been prepared, it shall then be brought to the proper moisture content and compacted to not less than 90 percent of maximum dry density in accordance with ASTM D1557-91. (d) Where fills are made on slopes greater than 20 percent, horizontal benches shall be cut into the firm natural ground. The initial bench at the toe of the fill shall be at least 15 feet in width on firm undisturbed natural ground. The width of all succeeding benches shall be at least 6 feet. APPENDIX A 2 3. Fill Materials All material shall be approved by the engineer and shall consist of materials free from vegetable matter, and other lumps greater than 6 inches in diameter. If, during grading operations, soils are found which were not encountered and tested in the preliminary investigation, tests on these soils shall be performed to determine their physical characteristics. Any special treatment recommended in the preliminary or subsequent soils reports not covered herein shall become an addendum to these specifications. 4. Placing and Compacting Fill Materials (a) When the moisture content of the fill material is below that specified, water shall be added until the moisture content is near optimum to assure uniform mixing and effective compaction. (b) When the moisture content of the fill materials is above that specified, the fill material shall be aerated by blading and scarifying or other satisfactory methods until the moisture content is near optimum as specified. (c) After processing, the suitable fill materials shall be placed in layers which, when compacted, shall not exceed six inches (6"). Each layer shall be spread evenly and shall be thoroughly mixed during the spreading insure uniformity of materials and moisture in each layer. (d) After each layer has been placed, mixed and spread evenly, it shall be thoroughly compacted to not less than the density set forth in paragraph 2 (c) above. Compaction shall be accomplished with approval types of compaction equipment. Rolling shall be accomplished while the fill material is at the specified moisture content. In place density tests shall be performed in accordance with ASTM D1556-90. (e) The surfaces of the fill slopes shall be compacted by means of sheepsfoot rollers or other suitable equipment. Compacting operations shall be continued until the slopes are stable and until there is no appreciable amount of loose soil on the slopes. 5. Inspection Sufficient inspection by our firm or the Soil's Engineer of record and/or his/her representative shall be maintained during the filling and compacting operations so that he/she can verify that the fill was constructed in accordance with the accepted specifications. 6. Seasonal Limits No fill material shall be placed, spread, or rolled if weather conditions increase the moisture content above permissible limits. When the work is interrupted by rain, fill operations shall not be resumed until the moisture content and density of fill are as previously specified. All recommendations presented in the attached report are a part of these specifications. 2