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Home My WebLink AboutWarner Avenue Relief Sewer - Phase II - Final EIR 79-2 'i tN 77W Superior Ccurt APPROVEDED BY CJTY COUNCIL { S7'AT WF CALIFORNIA In atwd fir the Ctlrnty of Orange r -� CITY OF HUN'TI STON BEACHt CITY CLERK 11R_(,QF0'I III I'.-s.�'1'1nN Public Hearings 79-2 StatenrCallrt,rnia I �. j�`ry �►. countyorntangr ! „1 'c•�^^�7t";,•. �,F�.•. ,t••�".yr Rita J. Richter That i am and at all times herein mrntiannd as,its a citizen u! t MMtia� • ik,;; the United Statr•K,tn-tr the Air of twenty-tine yeses,and that 1 ttM 76 do am not a party to,not intert•trd in the alrne entitled matter; that 1 am the principal clerk of the printer of'lie toasr.wat s#1:•;{ [��••. rlittrrt�• Huntington Bench Independent Review tr�dtta..lba «a. .w- Aw a newspapet of general circulation,imblithetl in the(it►of to nlaha w l +a`taiagt;:" Huntington Beach wikaeIta M"W1aaPMA r, av>wtaarras+ir t pat�Grahtes. County of Orange and which newspaper ie pul,16ht-d fat tl:r �,t M R►i sq?,•l diseminatitm air 4ra1 news and inte'tigrncr ad a gene rail rharar• AS im ��,�J.y ter,and whir I• newspr(mr at all times herein mrntianrd had ttanad fair` etd and still has a lima,fide sulncription list a,(itaving suh.crltirrA, ' ga'ae ilr and which nr+spaprt has I.ern rxtahh%hrld.printed and puh• s IaalWa1t11ta lirhrd at regular intrn•al..in the uid C.Ktntr ttf()range (at a K *a w 0-*. =0 20 t0�. peritd e:ctedinz one )ear, that the nl of which 'tic _.n�~� C*WW tlt bw Zj annexed is it printed c•gly,hK•limn puhh•hid in the retulat trtVAlkt11G and entire issur or said newspaper,and not in any•upplrmert O'H�NVZ%=C-11 f ' �UMt' 1 thereof,on the fainea ing dateb,to wit t:. t3sNr u•sj_>. lob Yea tiL `. ifsi.kr,ratta�rir attSr�y ' { March 279 19SO 1 1 I i i 1 I rrrtdt•tnt tirtlntrl Helder IW!IAII 1.f hrtj'stt oral the 1 ?rr" 1 Ing is true and r+trrrt t. Vate•dat............. Garden.9 ov@ •.. 4 Call r a. its .2,7"t da4 r ..�. r' `vY�!,thnr ■ 5raw�u. REQUEST FOR CITY CaUW,,.;'IL ACTION Submitted by James W. Palin Department Dgve .o,pment Services f. Date Prepared March 4, 1980 , 19 i„ Backup Material Attached L_J Yet [:] No Subject ENVIRONMENTAL IMPACT_ BE FORT NQ- 79_2 -- Y AC • T1 JJAHNER AZENUE RELIEF SEWER FINJAL ENVIRONMENTAL IMPACT REPORT i City Administrator's Comments Approve as recommended ti Statement of Issue, Recommendation,Analysis,Funding Source,ASternative Actions: B . STATEMENT OF ISSUE: Transmitted for your consideration is the Final Environmental Impact Report which has been prepared to assess potential environmental effects of the construction of a proposed relief trunk sewer line which would extend from Los Patos Avenue at Marina View Place to Balsa Chica StreL't, Bolsa Chica Street from Los Patos Avenue to Warner Avenue, and in Warner Avenue to a point approximately 800 feet west of Graham Street. RECOMMENDATION: �-r The Planning Commission and Planning staff recommend that the City Council certify Environmental Impact Report !;a. 79-2 as being adegequate in conformance with the conformance with the California Environmental Quality Act and State EIR Guidelines . XJALYSIS: 1 Applicant: Department of Public forks Location: Warner Avenue, Los Patos Avenue, and Balsa Chica Street. Request: Construction of a relief trunk sewer line. Planning Commission action on March 4 , 1980: ON NOTION BY 13AZIL AND SECOND BY PORTER THE PLANVIOG COMMISSION FOUND THL PROPOSED PROJE:C1' IN CONJFonhiAJJCI: WITH 111r. GENI1:IZAL PLAN AND RECO2•I- ME;NDED TO THE C;TY COUNCIL CERTIFICATION OF" F IN'AL EIII 79-2, BY Tilt, � FOLLOWING VOTE: AYESi Winchcll, 11 cvlicrflch, Porter, llazil N01:5 i None AUSI:N71: C,ruvr, .;hva t Lsauor � " ATISTAI.N�1: N o r i u �� u olio � I if Page 2 i f DISCUSSION The enclosed Final Environmental Impact Report was prepared for the proposed project. The environmental consulting firm of Chambers Planners and Consultants was engaged to prepare the report. A draft EIR was circulated for a 30--day public review period ending Cecember 12, 1979. The final EIR consists of the draft EIR, comments received from persons and agencies who received copies of the draft EIR, and responses to the comments prepared by the staff in conjunction with Chambers Planners and Consultants. The major issues of concern regarding the project are whether construction of the proposed sewer line is in conformance with the City's General Plan policies and whether the final EIR prepared by Chambers Planners and Consultants adequately assesses the environ- mental impacts of the project. It will be the City Council's responsibility to certify that the final EIR has been completed ; in compliance with CEQA and the State EIR Guidelines. The Planning Commission at its March 4, 1980 meeting made the finding that the project is in conformance with the City's General Plan. A portion of the project is within the coastal zone and therefore a coastal permit will be required for the project. The final EIR upon certification by the City Council will be forwarded to the Coastal Commission for its review. The proposed project is the second phase of a relief sewer to = � alleviate near-capacity conditions in existing lines. According to the Department of Public Works, no new service areas are to be served by the project. The proposed sewer project wises a number of environmental concerns which are addressed in the final EIR. Two of the major concerns are the sewer's proximity to the Holsa/ Fairview fault and to archaeological sites identified as ORA 83 and 85. Measures to mitigate potential geologic and archaeological impacts are contained in the final EIR. ENVIRONMENTAL STATUS: f The EIR is a document which has been prepared to asse3s the poten- tial adverse environmental effects which could result from the proposed sewer project. It is the City Council 's responsibility to certify that; the EIR has been prepared in accordance with all applicable laws governing environmental assessment. FUNDING SOURCE: Not applicable. i f s i Page 3 ALTERNATIVE ACTION: The City Council may consider modifying or expanding upon informa- tion presented in the final EIR. SUPPORTING INFORMATION: 1. Area liap 2. Final Environmental Impact Report 79-2 3. Planning Commission February S, 1980 staff report. 4. Memurandum from George Tindall to James Palin, dated February 28, 1980 Respectfully submitted, i James W. Palin, Director d Department of Development Services J. a JWP:JRB:df e I f S I 7 l d 1 i 17 1 > W b: A lI A r ti I) - 8 T t A '1' -1 0 h /' � -_.' 1:1.1•......t Ili � l c �r Hot: / •� M, 2 - tY IIIN I:nl'VIMIIY•r ' f.l.l♦A r Inl A r 1/.11 -'•,� //IHI+rC•II "$1�1111t1 ,j / j.. i C`< ; �• :L Ir 41. Z. •'•-•-• • �• ;1 Y[-�a7 f�Y�llfl'• �� , •• •• ,. AC2••AV�• y � uw � � ,, t � .Ijj• R o :. �� Ih1 r ` 1 i•�.1 •• •�� •1' �y ••�••• r It) �•1 • 1•'11 i ! 1 S,•. .` Irri •'•may 1��''• ■ �• 5`! 1••��! ••. •�� 1 J 111 •� .A"_'+.•'r� •r :6 r 7' S.0 .:•isstii:i� t • t....,. It to go JIM w ••�••• �++ �f At 11r tR ti Or . 11• -oft♦ 1 i w.11 i POLO NO rap . •� i �• P�mp,rL,,1.1•.ln t i •71 1'��1. 28 i \ 1 .. 1. � , ' Al • •mass PROPOSED SEWR :i figure 2-1 . VICINITY MAIL (PROPOSED SEWER) I i i, huntington beach development services department STAf f . l� r EPORT.. TO: Planning Commission PROM: Department of Development Servi,ct3 DATE: February 5, 1980 SUBJECT: CONFORMANCE WITH GENERAL PLAN (CGP 79-13)/ENVIRONMENTAL IMPACT REPORT NO. 79-2 (PHASE II WARNER AVENUE RELIEF SEWER DYNE) + 1.0 SUGGESTED ACTION: Staff recommends that the Planning Commission find the.. proposed t . Phase 11 Warner Avenue Relief Sewer Line to be in conformance with the General Plan and that the Planning Commission recommend to the: City Council certification of EIR 79-2. i 2.0 GENERAL INFORMATION: The Department of Public Works r..as regw•asted the Planning Divi- sion to prepare a report and recommendation to the Planning Commission concerning the City's General Plan for construction --� of a relief sanitary sewer line in Warner Avenue, Bolsa Chica Street and Los Patos Avenue (tree attached map) . The proposed sewer is approximately 1.1 miles in length and will provide relief service to an area encompassing approximately 1,130 acres in Huntington Harbour and Sunset Beach. The proposed project represents the second phase of the Warner. Avenue Trunk Sewer ' project. Phase I extends from Grahain Street to Springdale Street and was completed last year. Cost of the proposed sewer is I estimated at $475,000 to be reimbursed by the Orange County Sani- tation District. The enclosed final environmental impact report was prepares for the project. The environmental consulting firm of Chambers Planners and Consultants was engaged to prepare the report. A draft EIR was circulated for a 30-day public review period ending December 12, 1979. A list of persona and agencies receiving the draft EIR is attached. The final EIR consists of the draft EIR, comments received from persons and agencies which .received copies of the draft EIR, and responses to these comments prepared by the staff in conjunction with Chambers Planners and Consultants. 3.0 SUMMARY OF ISSUES: The major issues of concern regarding the project are an follouu: ,E;r ♦4u,�� i CGP 79-13 February 5, 1980 Page 2 1. Whether construction of the proposed trunk sewer line is in --' conformance with the City's General Plan policies. 2. Whether the final EIR prepared by Chambers Planners and Con- sultants in conjunction with City staff is in acco-rdance with the provisions of the California Environmental Quality Act and gr.idelines for inplcmentation of the act. It will be the City Council's responsibility to certify that the final EIR has been completed in compliance with CEQA and the State Guidelines. The staff feels it is appropriate that the Planning Commission recoruend to the City Council on this matter. t 4.0 ANALYSIS: The following General Plan policies are relevant concerning the proposed project: }} i:. 1. Protect the area's water resoarces -- domestic supply, ocean and harbor areas, marshlands and lakes - from water pollution. i 2. Presorve and protect areas of significant historic, scenic, and archaeological values. 3. Design and operate vital facilities in a manner to maximize r their ability to remain functional during and after disaster. 4. Prohibit the construction of future critical facilities within i 50 feet of a known fault trace. 5.' Prevent construction of additional critical facilities in hazard areas unless absolutely !necessary. 6. Eliminate housing conditions harmful to health, safety, and public welfare. i 7. Maximize the preservation of historic, scenic, geological, topographical, and archaeological sites. B. Provide an adequate level of community services, facilities, improvements, and maintenance in all areas of the City. The following Coastal Act policy in also relevant: 30254. New or expanded public works facilities shalt be designed and limited to acconumodate needs generated by development or uses permitted connintent With the provisions of thin diviBiont provided, however, that it its the intent of the Legicslatur•! that State Highway Routc- 1 in rural areas of the coastal zone rcnain a scenic two- lane road. Special dintricta nnill not be formed or ex- panded except where asnousrsent for, and provision of, the verviCL VOUld 110t indu:c new development icon nit)tent with thin divinion. 141,cru exinting or planne.•i public works CGP 79-13 February 5, 1980 Page 3 r� �._ facilities can accommodate only a limited amount of new development, services to coastal-dependent land use, essential public services and basic industries vital to the economic health of the region, state, or nation, public recreation, commercial recreation, and visitor-serving land uses shall not be precluded by other development. Since the City's'LCP is not yet completed, the project will be considered by the Coastal Commission. i The proposed project is the second phase of a relief sewer to alleviate near-capacity conditions in existing lines. According to the Department of Public Works no new service areas are to be served by the project. The Department of Public Works has indicated that significant construction activity in both the Huntington Harbour and Sunset Heights areas, in addition to groundwater intrusion, has resulte:Z in surcharging conditions in portions of the Warner Avenue sewer. The proposed project would re-route sewage flows to the existing pump st4tion at the intersection of Los Patos Avenue and Marina View Place, where it would be pumped up into a new line in Los Patos, then by gravity flow to Bolsa Chica Street and Warner Avenue. By pro- viding relief via new lines, the proposed project would restore capacity to the existing Warner line to accommodate new develop- ment now occurring ani planned in the areas directly north and south of Warner Avenue, furthering policies 6 and 8 listed above. The propoeed sewer project raises a number of environmental con- cerns which are addressed in the final EIR. Two of the major concerns are the sewer's proximity to the Bolza/Fairview fault and to archaeological sites identified as ORA-93 and 85. These concerns are reflected in policies 2, 3, 4, 5, and 7 listed above and are addressed in detail in the final EIR. Measures to miti- gate potential geologic and archaeological impacts are contained in the final EIR. 1 The area to be served by the proposed praj,?ct includes water re- sources in the form of harbor channels and bays and is adjacent to the Holsa Chica Ecological Preserve. If existing surcharging conditions continue while new development continues to occur, j there is a possibility that lines could rupture and contaminate these water resources. Given this n itsation, construction of the proposed project would further policy No. 1 above. i The Department of Public Works originally propost-3 that the por- tion of the project in Loa Patos Avenue ae designed as part of the f proposed Coastal Trunk Sewer. Both the City and County use the Warner Avenue line and the costa of thin project are to be reim- burned by the County Sanitation Districts. The size of the sewer line originally ... proposed for the Lou Paton section was larger than � actually needed to relieve thu existing deficiencies. It was felt that .installing this section of thc proposed Coastal Trunk Sewer 3 r . j CGP 79-1.3 February 5, 1980 Page 4 at this time would save money by eliminating additional con- .� struction and the effects of inflation if and when the Coastal Trunk Sewer line is approved. The over-sized sewer for the Los Patos section raised concerns, however, about its growth--inducing impact on the undeveloped, unincorporated area immediately south of Los Patos Avenue. These concerns were amplified by the coincidence of an applica- tion to the County by the Signal Landmark Corporation for a general plan amendment to allow development of a 218.5 acre area }mown as the Bolsa Chica Mesa. The proposed amendment would have allowed up to 1900 residential units on the mesa; however, I, the County subsequently denied the amendment application. According to the Public Works Department, the Warner Avenue relief sewer line is being constructed solely for the purpose of pro- viding relief for the Huntington Harbour/Sunset Beach area. The j section in Los Patas is designed as a 24-inch line. However, 4 excess capacity in the 24--inch line does exist and is estimated to be approximately 1.2 cfs. Assuming a medium density land use mix, the project excess capacity could serve approximately s : 200 acres. With low density development, the relief line could accommodate approximately 500 additional acres. On July 2, 1979, the City Council authorized a Request for Pro- posal and execution of a reimbursement agreement between the City and the County of Orange Sanitation District No. 11 for this project. If the Planning Commission finds the project to be in conformance with the General Plan and recommends certification T of the final EIR to the City Council, the Council will be re- quested to certify the EIR as.d authorize bids for the preparation of plans and specifications for the project. The authorization of the plans and specifications Is the last discretionary action by the City for this project. 5. 0 RECO244ENDATION: The staff recommends that the Planning Commission find the proposed Phase II Warner Avenue Relief Sewer to be in conformance with the General Plan. The staff further recmrnends that the Planning Commission recommend to the City Council certification of Environ- mental Impact Report No. 79-2 as being aCequate and in conformance with tha California Environmental Quality Act and State EIR Guidelines. ATTACHMENTS: ?. Area Map 2. CIR Distribution List 3. Final EIR 79-2 loft 11 Warner Relief Sewer •carter 9, .1979 age 2 11) Environmental Board 2 12) City Adninstrators Office 1 t, Attention: Floyd G. Belsito 13) City Attorneys Office 1 lc Attention-. G'.ii. Hutton '14) Public Works Dapartnent 3 r i Attention: Paul Cook -15) Fire Department Attention: Chief Picard 16) City Clerk 1 t't Attention: Alicia Wentworth '17) Local coastal Staff 1 18) Jim Palin 1 I � 19),...Savvy Bellavi.a 20 }rune Catalano 21) California Regional Water Quality Control Board 1 6833 Irdiana Avenue t I Riversl4e, CA. � 22) California State Department of Fish and Game 1 i r 350 Golden Shore Avenue Inng Beach, CA. 90802 23) U.S. Fish and Wildlife Service 1 Ecological Service l 24000 Avila Road 1 Laguna Niguel, CA 92677 24) Hall 6 Pbrm3n Inc 1 2530 N. Grarxl Avenue Santa Ana, CA Attentions Rich Don?ittle ter• CITV OF HUNTINGTON MACH •INTER•DEPARTMENT COMMUNICATION 10" Zi "�� w To;; '.'James Palin rrom : George L. Tindal" � � , Director Development Services City Engineer .r••3,1,, S bject: L1Q'�tFORI► ANCE WI711 GENERAL PLAN 79-13 Date February 28, 1980 u HARNER AVEMJE RELIEF SEWER LINE - PHAS- II The Planning Commission. at their regular ineeting of February 5, 1980, deferred con- :'-p• - .. sideration of General Plan Confornkuice of the proposed Warner Avenue Relief Sewer + #.• `.,Line. Specific questions of the Commission centered on whether the project would still be needed if the identified infiltration within the 11untington Harbour area were minimitzed, and if the sewer line was oversized to handle the infiltration. . ' A little background regarding the project might be useful in explaining the need for the project and its current status. The City and Orange Count-y- Sanitation District ' Kumber 11 entered into as agreement in June 1979, for the constriction of the Darner Avenue Relief Sewer Line (Phase II). Under the provisions of the agreement. the City responsible for the design and construction of the facility. The Co will be ?; responsible for funding and cnning/operating the sewer line. Based on the agreement the City has retained an engineering consultant and is now ready to advertise the j project for construction bids. Phase I of the Warner Avenue Relief line was con- ' strutted in 1977, and eliminated raw sewage from backing out of manholes.an Warner Avenue near the Golf Course. t �; : - The need fur the facility has been identified in previous sewer 1-taster Plan studies. j ,_; ';� Most recently the project was identified in the proposed study Prepared by Lowry and Associates. Sizing and design of the proposed relief line is based on sewer flows projected from the City's Land Use Element and the Sunset Beach Area. No oversizing was provided for infiltration or other areas outside the City. For the Commissions information I have stsrrrarized the capacity of the system and €, calculated flow rates. Actual measurements indicate the existing line is flowing with a D/d ratio in excess of 1.0 during average conditions. A. System Capacit}- Capacity existing 18" sewer line = 2.18 r►gd ! Capacity proposed 21" sewer line = 3.35 n d � Total systerti enpacity = 5. rl; l B. Projected Flm s From Sewer Study = 5.6 mgd The need for tlic lVan►er Avenue relief line can be seen by cor^iwring the projected flow rate, r,.b mgd, with the 2.18 r.zd current system capacity. 11 Ilia lcvel of .infiltration is approxirrr►tely 0.40 q:d based on a recent chemical analysis of the sever flues within the Muitini:tort Flat-bor Area. I IhC/ Jim Palin -2- February 27, 1980 Public Works Staff is currently vcrking to minimize the infiltration occuring within, the ihmtington lfarbour area. To date, as a result of T.V. surveillance, flow measure-' ments and chemical analysis two minor pipeline failures have been detected and are scheduled for repair. ` REUMMATION: It is recanended that the Planning Commission find that the proposed Warner Avenue {: Relief Sewer Line is in conformance with the City's Master Plan *of Sewers. • ' . GLT:ik . z ( i �14. gay �a S s, _ 1 ' Publish Mar _h 27 lgaCj NOTICE OF PUBLIC HEARING RHASE If - WARNER Av N s RELIEF SEWER FINAL ENVIRONMENTAL. IMPACT REPORT #79-2 i NOTICE IS HEREBY GIVEN that a public hearing will be held by the City Council of the 4'-A ty of Huntington Beach, in the Council Chamber of the Civic .Center, Huntington Beach, at the hour of 7:30 P.M., or as soon thereafter as possible on Morlday the 7th day of Apr�I 1�fat for the purpose of considering the Phase II Starner Avenue Relief Sewer Final Environmental Impact Report (FIR 79-2)., The EIR addresses a propnsal by the City j of Huntington Beach to construct a relief trunk sewer line which would extend from Los Patos Avenue at Marina View Place to Bolsa Chica Street; in Bolsa Chica Street from Los Patos Avenue to Warner Avenue,, and '.n Starner Avenue to a point approximately 800 feet west of Graham Street ' Copier of said FIR are on file in the Office of the City Clerk. i i I All interested persons are invited to attend said hearing and express their i opinions far or against said Final Environmental impact Report Further infutvition may be obtained from the Office, of the City Clerk, 2000 Main Street, liuntingtoa Beach, California. 92648 - (714); 536-5227 DATED Hirch_20. 19110 CITY U." 11UNTIt GTOtl BLACti ... .._...�. By: Alicia M. Weritwol-th City Clerl. r� S 5 • 1 j NOTICE. TO CLERK TO SCHEDULE PUBLIC HEARING ITEM P14-4! _F TT-w A 9rjF- lr,wuE= 9Q, F-F SeWfg F►rUAC. ��v•r►lZowwtEr+�I�c... CwiP�4c..`r Et T T0: CITY CLERK'S OFFICE DATE: •`� b • ,�,_ FROM: DAJ PLFASR SCHEDULE A PUBLIC BEARING USING Tllf: ATTACHED LEGAL NOTICE FOR TIRE _.. DAY OF , ��' . l`�D AP s are attached AP's will follow a AP'e Initiated by: Planning Cortmission Planning Department ; Petition i * Appeal }: other • r,•' Adoption of Environmental Status (x) YES NO Refer to ,.y� [A%0W%- _ Planning Department - Extencion �!l for additional information. t ' * If a2peal, please transmit exact wording to be required in the legal. . }"1 f, i o ^'.w'wrCt.'..i.7+{'a�l'•.:7.3'.Tl l'9".:.ww._....a.•r.v.•... aw...,. ........+... ..�...r.a..t ...i... a a.. •..i+.3•t. .....�..._. _ ...��.+—.—....�.. ..«we•r•�•rrYYww..r•.�w!..+•` 1 i Numbor of excerpts i i ! Publish once LEGAL NOTICE NOTICE or PUBLIC HEARING 1 ' Not Cf�.�r5�IIERE�F YI GIVEN thata public hearing will be head by the �s,,�t..��'' of the City of Huntington Beach, + California, for the purpose of considering �LtiC. p1%t.0 C. U.�2a—,,jd-t-- _ { Autt4vc, lie f Sewt -- �•.�h I �v.—o.z ��. - Ph cr—{— E P, -717-J) T'-q' -a- (� 4t.,. cz� GL ►/t. 4wv^1< Se we— V.-I Wi IL11, wove� Q yr�e... L,t LvS ?G-J rAa+t&i - Tc► vJu—v%e— A. e&i v t- j A j ••1 W c,•..K-C•-- 1 67( (%.., .' e, C 4 - I t 6" 4tt CZ Said hearing will be held at the hour of P.M. , on 1, in the Council Chambers Building of the Ci is Center, 2000 Main Street., Huntington Beach, California. All interested perL;w',s are invited to attend said hearing• Further informatiaJ may be obtained from the City Planning Department. «; Telephone 6o. (714) 536--5271 DATED this day of CITY PLANNING C014MISSION r� By j .""•"`M1YulW i4MF M•.t+•wwrnr.,M..Mw.✓VS}.%I.l;.N vt•r.w+.. ....._.....+..r..�.4 •1.`::.r GA,.• w...-.. _... .. .... -..,...v....i+wr..Mw.wa.rvwwvAiM.+-4}4ilY U.oil.•R/ S. 1 • T no PHASE II - WARNER AVENUE RELIEF SEWER FINAL ENVIRONMENTAL IMPACT REPORT EIR 7R - }: no MUST BE RETURNEIA { TO CITY CLERK ml . J.1 r Prepared by: ,� ; 1�1 � 'r�+�rttsaaa�v�s�watu►ras.�. 2*rrw,Cl�+.f p7Elp • ice, �� .. ti.` i PHASE 11 - WARNER AVENUE RELIEF SEWER FINAL ENVIRONMENTAL IMPACT REPORT EIR 79-2 r� Submitted to: CITY OF HUNTINGTON BEACH County of Orange, California Submitted by: CHAMBERS CONSULTANTS AND PLANNERS 10557 Beach Boulevard, P.O. Box 356 Stanton, California 90680 . 3 January 1980 t. A U Cloi =.u,*,e.as:7[S Kt+iM++r^.-�- .....,..r,..+.n...aac.w+r'.c,'CY;♦.a....a..r.n..r.....,,n r ,^t�i;'...;.a:`.,i:Vs.ax.,w.c...�...«,�..,........-r+�.--..—• +............Y n EXECUTIVE SUKIARY It is the intent.of the City of Huntington Beach Public Works Department to construct a relief trunk sewer line. The proposed sanitary sewer line will be installed approximately 20 feet from the centerline of the street, alongside the existing sewer line in Warner Avenue. The sewer will extend west approximately 1,800 feet, then south 1,300 feet on Bolsa Chica Street to Los Patos Avenue. The line will extend i' west on Los Patos Avenue for approximately 2,640 feet. The preliminary design indicates that the size of the vitrified clay pipe (v.c.p.) line will be 24 inches. The project will be financed by the City of Huntington Beach Sanitary Sewer �I Revolving Fund. The City will be reimbursed for const► i(ction costs by JJ County Sanitation District No. 11 with fees received for connection charges. 1 The completed project will b;: owned and maintained by the OCSD. County Sanitation District No. 11 lies completely within the boundaries of the City of Huntington Beach. Sewage from local sewers is collected and transported to 1 Treatment Plant No. 2 near the intersection of Brookhurst Street and pacific Coast Highway. n The project will relieve capacity conditions in an existing City sewer. line through the construction of a County line. No branch sewers or laterals will be connecting to the relief line. The only points of connection will be Los Patos Avenue at Marina View Place and Warner Avenue west of Graham Street. Upon completion of the relief line, sewer flows in the existing Warner Avenue 41 line will be reduced to facilitate ultimate development according to the ' zoning designations for that area. p The impacts associated with the proposed project and their mitigation measures are as follows. i G r -+.+w"•'y'A:i^..'t'::C'i'�1+""....�. ....�,.....�nrt..ewyYx,s nsn .+a-...r......._.-... ....—, .r- .,i::..+.a': +..-.».,..-.�.--.�_....,...�....�......��. .... ..... ...--•---^—•-- ._._ �.......r....,w: h If the sewer is constructed along the proposed alignment, the site will probably experience some ground shaking from earthquake activity. An allowance for ground movements along the trunk line should be considered in design and con- struction. This would require a study to define the specific, probable fault line movement that could occur at the ground surface. The unlikely event of a trunk line rupture should be considered as a conserva- tive measure. Potential impacts can be mitigated by placing gravel bedding and backfill in the trench and sealing the trench at intervals. The Warner Avenue portion of the sewer mould disturb an existing madden (a por- tion of CA-Ora-368). A qualified archaeologist should be retained to inspect any subsurface disturbance to a depth of 2 meters. If the sewer, is placed on the north side of Warner Avenue, a Test Phase auger transect should be gun along the right of way to gather information regarding the extent. character, and depth of madden deposits. i Beneficial impacts would include removal of a potential health hazard by reducing flows in the existing Warner Avenue line to P. safe level and improv- ing capacity for ultimate development. i i i C� •,-r......wrFw..C'PMr,u...,.r-•--- •.+..r4n:Y.:-.bas:..r... .......-.....�....... .... ..a ..';7;., .,....vi•1:�:a1`.+......... -...�..+re.« _•......�r.+.++v...+......+.....y.AftMW/rt� .t _ T i ACKNOWLEDGEMENTS + n Chambers Consultants and Planners would like to acknowledge the following staff members and associates for their contributions to this report: M. D. Chambers. . . . . . . . . . . . . . . .Project Director n, Linda Brown Brayton . . . . . . . . . . . . .Project Manager Jack Iahnizer . . . . . . . . . . . . . . . .Archaeology ( Robert Townsend . . . . . . . . . . . . . . .Soils R.E. Eastman of H.Y. Lawmaster. . . . . . . .Soils and Geology The assistance and cooperation given by James Barnes, Associate Plat,,ter for the City of Huntington [leach and Barry Beech of Hall and Foreman. Inc. is greatly appreciated. i t a r t� iv CC � i .+ur::•a.+i•7t7 i.•.jw.ww.�—.......ww.'.r_v.n....w'rl:.;.1t;.l e�e.++v...•....�.++.. ..... r17.{l'. r:l.{ .w5:+ti.ue.+w.!__.r......__....�.�.w...._.- ...-.-. ._.--.+�....,- .�...w... y.,�,.�.rw�. .. .6.} r ... a .. ... .. - .. PEPSO.NS COlISI1LTE0 Agencies Consulted City of Huntington Beach 7 James Barnes - Development Services Department William Holman - Development Services Department William Patapoff - Public Works Department Eileen flyda - Local Coastal Plan Chief Earl Robitaille - Police Department Raymond Picard - Fire Department Parks and Recreation Department Water Department California Regional Water Quality Control Board - Gordon Anderson - Environmental Specialist Orange County Transit District - Robert Hartwig Huntington Beach Nigh School District Huntington Beach Elementary School District Ocean View School District County of Orange Environmental Eianauement Agency - fred hell , Planner i Orange County Sanitation Districts - Tom Oawes, Senior Engineer Dennis Reid, Planner Organizations Consulted Southern California Gas Company , General Telephone i Southern Californ.a Edison Connpany Nall and Foreman, Inc. - Richard Doolittle, Assistant Vice President Barry Beech, Project Engineer � f•i. i. i i c �4 r , "�""'+wr.�.:1 '4.:'LiN.r.+..+.++,.....r..•Pxrwr+-v+..`1'fps.•r.+...<...ter-......+...+..,....+�...tx,a"?, .- r......:.+,+>.. -,....._........��...wh..r....-....,.r_...__ _ _ ,,,.`„�--�.... _. t. et TABLE OF CONTENTS V Page Executive Summary . . . . . . . . . . . . . . . . . . . . . . . . . . Acknowledgements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv Persons Consulted . . . . . . . . . . . . . . . . . . . . . . . . . . . v List of Illustrations . . . . . . . . . . . . . . . . . . . . . . . . . .viii List of Tables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .viii Section 1 PROGRAM SUMMARY . . . . . . . . . . . . . . . . . . . . . . . .1-1 1.1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . .1-1 1.2 Purpose .. . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1 1.3 Objectives. . . . . . . . . . . . . . . . . . . . . . . . .1-1 1.4 Program Outline . . . . . . . . . . . . . . . . . . . . . . . .1-2 ; . 9 2 DESCRIPTION OF THE PROPOSED PROJECT . . . . . . . . . . . . .2-1 2.1 Project Location. . . . . . . . . . . . . . . . . . . . . . . .2-1 :.� 2.2 Project Objective . . . . . . . . . . . . . . . . . . . . .2-3 { 2.3 Project Characteristics . . . . . . . . . . . . . . . . . . . .2-3 3 ENV IRONMENTAL .STUDY SECTOR REPORTS - EXISTING CONDITIONS, EFFECTS AND MITIGATION MEASURES. . . . . . . . . . . . . . . .3-1 3.1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . .3-1 3.2 Soils and Geology . . . . . . . . . . . . . . . . . . . . . .3-1 3.2.1 Existing Conditions . . . . . . . . . . . . . . . . . . . .3-1 3,2.2 Areas of Concern. . . . . . . . . . . . . . . . . . . . . . .3-4 t 3.2.3 Mitigation Measures . . . . . . . . . . . . . . . . . . . . .3-7 3.3 Cultural Resources. . . . . . . . . . . . . . . . . . . . . .3-8 3.3.1 Existing Conditions . . . . . . . . . . . . . . . . . . . . .3-8 3.3.2 Areas of Concern. . . . . . . . . . . . . . . . . . . . . . .3-10 3.3.3 Mitigation Measures . . . . . . . . . . . . . . . . . .3-10 3.4 Land Use. .3-11 3.4.1 Existing Conditions .3-11 3.4.2 Areas of Concern. . . . . . . . . . . . . . . . . . . . . . .3-13 3:4.3 Mitigation Measures . . . . . . . . . . . . . . . . . . . . .3-17 3.5 Public Services . . . . . . . . . . . . . . . . . . .3-17 3.5.1 Existing Conditions . . . . . . . . • . . . . . . . . . .3-17 3.5.2, Areas of Concern. . . . . . . . . . .3-17 3.5.3 Mitigation Measures . . . . . . . . . . . . . . . . . . . . .3-19 4 DISCUSSION OF IMPACTS . . . . . . . . . 4-1 . . . . . . . . . . . 4.1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . .4-1 4.2 Potential Impacts . . . . . . . . . . . . . . . . . . . . . . .4-1 4.2.1 Adverse Impacts . . . . . . . . . . . . . . . . . . . . . .4-1 4.2.2 Beneficial Impacts. . . . . . . . . . . . . . . . . . . . . .4-2 I •j . vi ICCP .'.r-.—..•�»o.w.a.aw..+t+r.t.��.n..+ -•.....w....M1Ji:.ox•i...i.:r...................—».—... .. S .,. ....�.�:.''.:C..«.r/+nw....+,.....,...�.+...+..w.e+..+..•....�.w.u+rty/A'C�IIS�'S[17ri7F'a4LIII�i�T11SFL"ZC1C13M,FM►, • I n TABLE OF C0NTE14TS ( C0NT ' D ) Section Paq r^y 4.3 Cumulative and Unavoidable Impacts. . . . . . . . . . . . . . .4-2 4.4 Growth Inducement . . . . . . . . . . . . . . . . . . .4-2 4.5 Alternatives to the Proposed Action . . . . . . . . . . . . . .4-2 4.5.1 No Project. .4-2 4.5.2 Con:,truction of a City'Line .4-3 4.5.3 Alternate Alignment . . . . . . . . . . . . . . .4-3 4.6 Short-Tern Versus Long-Term Productivity. . . . . . . . . . . .4-3 4.7 Irreversible Impacts. . . . . . . . . . . . . . . . . . . . . .4-3 BIBLIOGRAPHY COMMENTS ON DRAFT EIR AND RESPONSES r1 LIST OF APPENDICES A Soils, Geology, and Seismology Data . . . . . . . . . . . .A-1 B Archaeological Element for an Environmental Impact Report Evaluating the Impacts of a Proposed Sewer Extension r� Along Warner/Bolsa Chica/Los Pa*os in the City of Huntington Beach . . . . . . . . . . . . . . . . . . .k3-1 . C Initial Study and Nonsignificant Effects. . . . . . . . , . .D Correspondence Received During Course of Study. . . . . . . .D-1 M 4' I i t } vii .-w-crr.Cuf+tc ati'.,c.•k-.+-.,.........« .�;, ,� ,-.:.t'.•.a••arn... .. .,:'.., ,:�,",.. - _ .+ .. . %v:..,. +2 . ...,.. .. :r.4..mn.e�+«.a.tv.rn.+��•..«..+.«.wwr+..eawra-vwawNurw-•••+^ I n LIST OF ILLUSTRATIONS Figure No. Page 2-1 Vicinity Map (Proposed Sewer) . . . . . . . . . . . . . . . . .2-2 2-2 Service Area Map.' . . . . . . . . . . . . . . . . . . . . . . .2-4 2-3 Sewer Loading Conditions. . . .2-7 nk 2-4 Existing City of Huntington Beach System Tru Facilities .2-8 2-5 Warner Avenue Trunk Sewer System. . . . . . . . . . . . , . . .2-9 3-1 Regional Geology Map. .3-3 R 3-2 Archaeological Sites. . . . . . . . . . . . . . .3-9 i - 3-3 City of Huntington Beach�Sphere of Influence. Hu .3-12 ' 3-4 Predominant Existing Land Use Within the City of ntington Beach. . . .3-14 F. 3-5 Vacant Areas Within the City of Huntingtnn Beach. .3-15 3-6 Predominant Ultimate Land Use Within the City of Huntington , Beach. . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-16 ; 3-7 Predicted D/d for Warner Avenue . . . . . . . . . . . . . . . .3-18 s ; LIST OF TABLES tr' Table No. s 2-1 Warner Avenue Relief Sewer• - Preliminary Design . . . . . . .2-5 3-1 Fault Systems ,Perti.nent to Site . . . . . . . . . . . . . . . .3-2 3-2 Maximum Credible and Probable Earthquake Parameters .3-6 A 3-3 Anticipated Horizontal Ground Motion Parameters for Maximum Credible Earthquakes . . . . . . . . .3-6 3-4 Anticipated Horizontal Ground Motion Parameters for Maximum Probable Earthquakes . . . . . . . . . . . . . . . . . . . . .3-7 �; viii T \ I'ry. Section 1 PROGRAM SUMMARY • i I i Section 1 I PROGRAM SUMMARY 1 1 .1 INTRODUCTION The City of Huntington Beach Department of Public Works is' proposing to con- ' struct a relief sewer line which would extend from Los Patos Avenue at Marina View Place to Bolsa Chica,Street, in Bolsa Chica Street from Los Patos Avenue to Warner Avenue, and in Warner Avenue to a point approximately 800 feet west of Graham Street. After completion of the project by the City, it will be owned and maintained by the County Sanitation District No. 11. i I 1.2 PURPOSE The purpose of the Focused Environmental Impact Report (EIR) is to address environmental impacts identified in the Initial Study as being potentially i significant. The completed document will describe environmental benefits and constraints resulting from the proposes: project. Mitigation measures that Gould by feasibly incorporated into the finalized site design will be pre- sented. A discussion of environmental impacts not considered significant is included with the attached Initial Study. n 1 .3 OBJECTIVES The specific objectives of the Focused EIR are to: 1. Compile and assess existing environmental information relevant to the potential development area to determine the adequacy of the data base and to identify data gaps. I VLM: ..-�_,..v,..uet^.,:7^»S"-Y.:c n'ez,..........w.....�... .,r� ... «. .............«..« ....r...... .. .. ...-... _.. .... -. .... ...... ._. .. ., nr....n.,,-n...., ..R...-w.....e..... .-.. I .77 I .1 2. Describe existing environmental conditions and identify possible environmental concerns. 3. Meet all CEQA requirements. i J 1.4 PROGRAM OUTLINE This EIR provides ; description of the proposed project, and of the existing environment of both the project site and the immediate) surrounding area. The P Y 9 existing environment is discussed in terms of soils and geology, cultural resources, land use, and public services. Areas of concern are identified and discussed. Mitigations measures are suggested. Unavoidable impacts and alter- natives to the project are presented. r.► The information presented in this report was provided by the City of Huntington Beach, the County Sanitation District No. 11 , Nall and Foreman, Inc. , government agencies, private firms, gathered on-site by Chambers Consultants and Planners (CCP) staff specialists, and collected from reference materials. r� t i iJ 4 ' ,y 1 1 I 1-z J ..J "M....4'F y.'.`,l.w..f F..4'e...4.1•............ ., ru.. ...1 ".. •i'161"i.t.. i M ....e...w rn...,.^.......... ..� ..- ....... f � i .. i Section 2 DESCRIPTION OF THE PROPOSED PROJECT I Section 2 DESCRIPTION OF THE PROPOSED PROJECT r, i 2.1 PROJECT LOCATION The area of construction will extend from the termination point of the Phase I Warner Avenue relief sewer, which is approximately 800 feet west of Graham Street, to the intersection of Warner Avenue and Bolsa Chica Street. At that point, the sewer will be routed south to Los Patos Avenue. It will terminate on Los Patos Avenue at Marina View Place (Figure 2-1, Vicinity Map) . The immediately surrounding area is largely developed. warner Avenue is developed with commercial uses on both the north and south sides. The inter- section of Warner Avenue and Bolsa Chica is developed conmercially, changing to a mixture of single-family and multiple-family dwellings as one travels south. The predominant type of development is multiple-family residential on both sides of Qolsa Chica Street. At the terminus of Bolsa Chica Street where it intersects Los Patos Avenue, residential development continues on the north side of the street for the length of the proposed construction to Marina View Place. i r.� The south side of U% Patos Avenue is bounded by the unincorporated area of Bolsa Chica Mesa. This undeveloped area is presently designated by the City of Huntington Beach as a Planning Reserve. t7 2-1 A�pWWI t y: '+►v*a' .. .. «,... ..n.. .L�f,.a,i.i 3_>Lw.....r .•_F.•«A........ .. .. re ...3 n t.,,a.:.t. . .- A—+. ....,.ra�w .-..»..-......,....... -•�.w. -.......mow .r.. N • ., f U .� -t� V 44 1 , 'r�,,t�' ; •' ti of 1, • « Hod / /•Y - i ,.. h Island �j; L TJlry /:rrlryI)AItY • �! _� "1. a _VOLSA I _�� III Itnrt %1 !• �Q " I I IIKNgIATI ~�'� -- •- "4�LSIANK57l.I� 1'• = ` . �`� 1,: - F �zfv IIt�••h 1'..x ;� t' � •.,. >Z'YA N ,(, At n �`•._/�`�'��.'" , ' It r$t•t •r y ` ._.• I ...gII1C \•t.•• ! ^ ..«.,�, Al r/f, ti•�.• •1 ,'•l i �...`_..., i.t —.. srSAON ' LrR I •, ot A.•• ''•T/ •h•• •'�• 1 rt�• ` `cr�Aal(7 1_ 1+�� _ iQu�itla—rt-s;,3Q, t. .ti .� .+._._., ptl , ,+ 1 . �.�•f• torr •�%T 1 r� • •• 'ti.,•'•. 1tr,+ �� ;•�: n�t:�ct� let to .t,�"+, f * tt •,. ; :::::.!:' J.� 30il 1 1�'rt► S .:r.�..�+ ,. loa wi , '1,�+.,� •i•ft,•'t�' •. .• ::r•�.+� '�_1•Il vC• « . • m •� F. yr. � •....t i�i� 1� 1 •`• S. �l «�... aw , 1(� 1• �. :•! •� • yl A:rt:�•AHY Sunset [3each' •'�''• t Go.•'-ki :, • I f. �}}i • " •' t:; • :a 1} ''ra,•a,, ••�'vi'I�• ' � 1��.�1 1 ! .l.',;�fy,{��t , i� • ' � • ;ua/•,�.. tu,uh to too. j ch • �wl•.: is t V A. PROPOSED a.A■� PROPOSED SEWER Figure 2-1. VICINITY MAP (PROPOSED SEWER) 2-2 Gjw ' 4 �fayt��^{�'�s�x�E.�.. ,f1iA,W►;,�„�,,.�.�+..�.�---- .`4. •'1 2.2 PROJECT OBJECTIVE It is the intent of the City of Huntington Beach Public Works Department to construct a relief sewer line to service the area depicted on the Service Area Map, Figure 2-2. The objectives of the proposed project are as follows: 1. To eliminate potential health hazards which may result if sewer -� flows exceed sewer capacity in a portion of the Warner Avenue trunk line. 2. To reduce sewer flows in the existing Warner Avenue trunk to comply n with County Sanitation Districts of Orange County criteria. 3. To provide sewer facilities in accordance with the Orange County Master Plan of Sewers as amended on March 14, 1979. 2.3 PROJECT CHARACTERISTICS n The proposed sanitary sewer line will be installed approximately 20 feet from the centerline of the street, alongside the existing sewer line in Warner Avenue. The sewer will extend west approximately 1,800 feet, then south 1,300 feet on Bolsa Chica Street to Los Patos Avenue. The line will extend t west on Los Patos Avenue for approximately 2,640 feet. The preliminary design indicates that the size of the vitrified clay pipe (v.c.p.) linewill be 24 inches (Table 2-1). j 3 ► The project will be financed by the City of Huntington Beach Sanitary Sewer Revolving Fund. The City will be reimbursed for construction costs by County �. Sanitation District No. 11 with fees received for connection charges. The com- pleted project will be owned and maintained by the OCSD No. 11. County Sanita- P tion District No. 11 lies completely within the boundaries of the City of `u Huntington Beach. Sewage from local sewers is collected and transported to Treatment Plan No. 2 near the intersection of Brookhurst Street and Pacific Coast Highway. �3 • tJ 2-3 r. ti + r . 17% �- - l' A V A `t. - + •� w ..' z r f�\ •l• � 2 i { +• 18 17 • W E A 1' %O IN S / T;� A r1, .�' U. 1\f . .;' j" � " �. 16 +.. L r.� '! if '.I• I .. •=gi{, • Lt Hog Y. 1' ; ;_III Y ? Island � .COts• cr•rC• .. .. . . . ,, j (. � �• Wr Uilr W9 FA MS UP Nu•e ',/�\�,\ ,.. ill. +Il A t 11 m-A13 d. II %'w. ,I [ ... ... •,,., ♦s.tit ! .. . - •k IiG .• - -...r `• SISSOM_,... - OM: _ �lfu�•. 111 14 ,y ,�• -7U ` .y.•�• „{ . �•� }�[MSY1C .. t._t? ' j e 1/ {�A � LPY'••H JM; • .�' \ �[�F•� :G'�'�/ �1� ',•�ti..''•�h'" _ /�iY 14�: ..lYT. t�{;:1 ? 1 . 1 m l 'i'21 ti •i L••!,.•L S�f�.ti •�' �� :.;.'r.' �� /y � t��l��. „w ,� r.., f t4. fillet � ':;j,� ` `':.::• '�-�:~''• ::= �•�f- t'.�%�w»:`;. • � • � - �i�:n:.• q i'fly Ci ,A lN ' �` [�'►iy,+ +��'f •" '',\'�r.�• •.«l�!.•Jr'''•..••`� •�O ft• �,��•(•.s•• ¢•�:�,. // •I k+111„�r:r` .�^`f„t._ C• l • tii\•1 � w '�y .'�.�}}„t., �.=ff ...r..•' �. :` �r,��/•' : .�I � �•."•� li JiI•CO Sunset Beach*-: A. /�. ^•�t�r .D.1�f.-a'j•tt1'y.SV'•4.•i•.al'�i,�.. . •• �• � j �l...S• �. .•`.fY • !y,' •7YlERITIPIi i:t.�t�J '�•,_'' - ' ' i•' ,�,••••• �.. � i•`'•. �.1. •'��'' �•�`j f '•.� .{-fir. :n. •'_ ,, ixl:s % •Alas U14•C...r. We MCA �-• ' sr IOC f LOS PAT S AVEIIUE�J Ap VA �I �{ �V + + '�Y\ ''r �• a •I �� M `.-- ��•• Figure 2'-2. SERVICE AREA MAP 2'-4 LENGTH �I:Ufllci SLOPE VELOCITY _ 1 cc 10 3.35 5.19 24 0.0012 1 0.60 : 8.80 ' . It 1 11 i .l 2.58 8.80 ; # 8.80 Balsa Chica 500 3.35 5.19 24 0.0012 0.60 2.58 8.80 _ ! 1 11 Warner 500 3.35 5.19 24 0.0033 O.AA 3.84 13.00 10 3.35 5.19 24 0.0033 1 t + ' 3.84 13.00 500 3.35 5.19 24 0.0275 0.25 8.69 '`g"-car.%' -: '"� `:'Y.•� ' Warner 300 3.35 5.19 24 0.0275 0.25 8.69 sjx r P 1'1 r 7 .1r r ' r A . � •f t' 1 l The project will relieve capacity conditions in an existing City sewer line through the construction of a County line. No branch sewers or laterals will be connecting to the relief line. The only points of connection will be Los Patos Avenue at Marina View Place and Warner Avenue west of Graham Street. Upon completion of the relief line, sevier flows in the existing Warner Avenue line will be reduced to facilitate ultimate development according to the zon- ing designations for that area. No new or existing development is planned to tie directly into the relief line. i The criteria used to determine safe loading capacity for sewers is based on a depth to diameter (D/d) ratio. The County Sanitation Districts of Orange County depth to diameter design capacity is presented in Figure 2-3. A depth to diameter ratio of 0.50 is considered the nonnal design capacity for sewer lines up to 18 inches in diameter. A safe loading capacity for sewer lines larger than 18 inches should not exceed 0.75. i� • The existing Warner Avenue trunk sewer line is shown in Figure 2-4. Portions of this line from Algonquin Street to Graham Street exceed safe loading condi- ``' tions. The Algonquin Street portion is presently operating at total capacity II, (D/d = 1.00) as shown in Figure 2-5. i li i :0 2-6 CAME""' •--w..,r.(:`Ta.::...ri:'Z:✓}Y.L.LG:.�r.l..lC4•I:hLV.tx'�rlt.u...w..� ...w._......»......-...n..ac rx:r:.:.ic•c..>....... _..__........•.....�... __... __.. ._. ..__._. 1• ':.'tea:,}�'t•.�,'r.- t 1 �r ' r N y w u � o - 1 H WARNER AVENUE ; _ I 11.112 r.r a rwrI 1 AC y r ^ I t I � 1 i :s-•n ar ►tc � � 1 � :xt a•tn • �' w.• ... CITY souxURY HUNTIHM 9EACH � 0 CITY SYSTEM TRIdIK FACILITIES I II Figure 2-4 I' a EXISTING CITY OF HUNTINGTON BEACH SYSTDI TRUNK FACILITIES 2-8 "•i';"•:9'...:w�iu.`...,i:;v j;t-'a. .'J.aI.S T.'.e:. ..,v•... ....._...�...«.,..•r:... ., 'x_,..... .,..........�..-..........�.».«.....�..-. .. rw.•e.w,ur....ww,w r � ----- NI Figure 2-5 WARNER AVENUE TRUNK SEWER SYSTEM (CITY) a PIPE C:4RACTc`RISTIa- •0 CCNTRIE,UTING , _ _.... -- O SL6 AREAS 6 SYSTEM' 7EAC H INV. MIN. D/d -1 II INU. ELEV. SI LENGTH , SL^ GC�yDITION I EDGEWATER LN. 'O HAFeOR TRUNK SEXIER �� C SYSTch}-C1 1036 ��'4 1N 12 FM 900 6 . 40 PVfP STA. D 974 OUT 10 n j l 37 33.79.1 S" 13001 0 . 0069 1 )D/o=0.66 3 7 2)D/G'--0.67 11 ALGONOVIN ST. 1 )On- .00 1538 . 1038 -----— 39 24 . 45 18" 2700 ' 0. 0016 ' ALGONOUIN P .S. i 3 8 12 {. SOLSA CHICA AV. 20.58 1)O/D= .:7 1039 39 18" 15001 0. 0026 7 ' 42)D/D= .83 f C 39 13 cr 1 ) I 40 W 16 . 47 1 2" 500 , 0 . 03 11 D/D=0.68 Z r 2)D/D=0.71 a 4 0 3= 14 ` 1 )D/C>--0.73 41 0. 70 2 1" Boo , 0. 0013 )D/D-0.77 { G 1S GRAHAM ST. 1) /D=O.SZ 1042, 1542 42 L-0 .60 26" 1500, 0 . 0013 12) D/D=0.55 16 E k2 LARK LN. 1043 43 2 . 4 7 31" 1200, 0. 0004 1 ) Dl0=0.56 4 3 17 E0 _) D/�0.59 . SPRINGDALE L 1044 , 1544 ------IP 44 3 . 38 31 EC J .JOIN EXIST. SPRINGDALE STREET TRUNK SEWER (COUNTY) LECr7d0 1 ) PRESENT 2) ULTIMATE 3 — MAN} E Id/ND. 1001 ---- SUE--AREA NC. P.S.---;2UVP STATION V Q�"- SZYER LINE %I/NO. P ---.=ORC MAIN 2-9 ."'.'u'n+K a17.a��i{w:i.1.`=.:..rJ�.Yt^.S:i.i a.=:�:...:.1"L.Y'.":Yt..aa. .tea .._......._.—,..... ..rl..�a7{ -. a ._...... .....a -..........._.«..�....«-«...... ......w..++...a.•+w••aw..w`++rw/...#fi{.1tiT'/Vt1.. ' r - �1 '` `ice'� ,•i {.;*1.s �*j++5�;a'.�'.ra �,a a ��r2, M �:.w s^ � r.�<.,i ,�,� •• • rah r � ro y t :.- Section 3 ENVIRONMENTAL STUDY SECTOR REPORTS EXISTING CONDITIONS,' EFFECTS AND MITIGATION MEASURES i'.. i t 1, 1• � i s i t � is •r� ny *i" fi 'a4rr�t�iFs�iti' iEisk51S�i1�y. ur, ell "1 Section 3 ENVIRONMENTAL STUDY SECTOR REPORTS ., EXISTING CONDITIONS, EFFECTS AND MITIGATION MEASURES 3.1 INTRODUCTION 7 This section describes each of the following environmental study sectors: • Soils and Geology i -, 0 Cultural Resources M Land Use e Public Services O Ea,`h of the study sectors will examine the existing conditions and impacts expected from i:he proposed project discussed in Section 2. Mitigation measures are also presented. ti 3,2 SOILS AND GEOLOGY 3.2.1 Existing Conditions The site encompasses lengths of approximately 1,800 feet on Los Patos Avenue from'Bolsa Chica Street, 1,000 feet on Bolsa Chica Street between Los Patos Avenue and Warner Avenue, and 1,800 feet on Warner Avenue easterly of Bolsa # p Chica Street. Its topography is relatively level with elevations of approxi- mately 50 feet on Los Patos Avenue, from 35 to 50 feet in a northerly direction r ' on Bolsa Chica Street, and from 30 to 35 feet in an easterly direction on Warner Avenue. 3-1 CAM to t , } t '.^""v.nwvc.'W.LILti..:1'S:Ct OF r—«.x hrtar.,w r, r:a tKu......t...+ .-..-..-....... ..•+.t'. ..,. '.3.,.110 .........-......,..._........+...,,.............._. K .• l� ♦ fl f (1 F.• " ` •."",x.••SiW�s'L�:�; .-it"'�•1.�y93'1iL4:da'KW.rw+^^---' \{. { 1 Exposed geology is comprised by Pleistocene age, alluvial type, deposits assigned to the Lakewood formation. At the site, the Lakewood consists of alternating relatively thick beds of clays, silts, sands, and sands with gravel that extend to depths of approximately 150 to 200 feet, whereupon the San Pedro formation is Situated. In turn, sedimentary rocks of the San Pedro and older formations extend down to basement rock at a depth of some 14,000 feet. -� A typical log of the Lakewood formation at the site includes: 25+ feet of clay and silt 25+ feet of silt and sand 20+ feet of clay and silt 30+• feet of silt and sand 10+ feet of sand and gravel 10+ feet of clay and silt 20+ feet of sand and gravel 107 feet of clay and silt 15+ feet of sand and gravel 0 10+ feet of clay and silt 25+ feet of sand and gravel 00+ feet 0 The relatively thick bed of clay and silt exposed at the surface is of parti- cular significance to the project in that this bed is low in permeability and acts as & barrier to seepage in the vertical direction. The groundwater table at the site is situated at depths of approximately 40 to ; 60 feet; conversely, the groundwater elevation is approximately -10 feet. x. Structural geology of significance comprises the nearby Newport-Inglewood system, and the more distant Whittier/Elsinore, Sierra Madre/Cucamonga, and San Jacinto/ San Andreas systems. These fault systems are located with respect to the site t , as denoted in Table 3-1. D Table 3-1. FAULT SYSTEMS PERTINENT TO SITE U . F M Newport-Inglewood See Figure 3-1. Regional Geology Map 1 Whittier/Elsinore 19 miles to northeast Sierra Madre/Cucamonga 31 miles to north San Jacinto/San Andreas 49 miles to northeast 3-2 tprCl:::w"»"��ii:G.1;.*r...,,.'r..l�.: '-'�L:t:x.u,::.a.r-u........�.�...._ . ......... e.:1. ......,..... ...__...__.........�...._.-._ .. .. ........,........� 1 .i MAN �. �Jy C • "� ��Rd.. � 7�.!�6:J.C+°?V c�7/•er.A. �/aae.•ti i7: ti.. sonlernando �; s ��wl•• a r ., ••;r6�; ,+:1,;..,.1;.t;1 r Iin — ISmI `� `� \ice 1•"i:-�:1, '•;n� •r„��;�.��y�_•�:: �i 1 r•\-rl 1.��;•.. '�-'i '�:.•.;,w/1 /•``'', -Ili 1 1 Santa Monica '=�:� ;; :; {L•j.;;_/ti;:�,.'; ;%:;- ; Los Angeles , w;:::ti;�'., i 0 Madre -::;:1;%•; 1'1 0 Aa *46 li�li:i♦ Smn a - Et a rna rdin Site Location '"�`---�; `°�, .;' , _:� �, ,1• - Long Rea ch \� •��/n •�ii�r.11�� :i�i=•i /• • 1 .l- Santa Ana �° 1�-';.,•. d too =%:►;i:lit ��1.`i 1:;' . 1 \ :-jig. rid•. i i is• ``` t, Qa Quaternary Deposits ,.I Ts Tertiary Sedimentary Rocks fit Mb Raseneent Rocks Active Fault system Figure 3-1 a� REGIONAL GEOLOGY MAP 3-3 If. V. LAWHASTrit h Co., INC. Q These locations have been defined with reasonable accuracy by a combination of surface exposure and subsurface water and oil wall data. -� Further perspectives of the geological setting are also shown on the accompany- ing geologic maps and sections in Appendix A. 3.2.2 Areas of Concern A two-fold classification has been adopted for fault activity. namely: 1. An active fault is one along which there has been surface displace- ment within the last 11,000 years (Holocene time). i . , 2. A potentially active fault is one which exhibits evidence of surface displacement within the last 2 million years (Quarternary time); an exception is made for faults which are determined by direct evidence to have become inactive before 11,000 years ago. The active and potentially active faults are the ones along which earthquake activity affecting present-day construction is considered most likely to occur. It is not possible to state with certainty, however, that activity will not i occur along other faults in the future. Aside from the Newport-Inglewood case, the aforementioned fault systems can be considered as active due to apparent movements and/or seisr, city sine-2 ;ate j � Pleistocene time. j In the Newport-Inglewood case, as shown by the Geology Map and Sections, there i is a concealed, subsurface Boisa-Fairview branch of this zone located beneath the site area. This particular geological situation may be viewed by two perspectives: (1) Basal deposits of off-site alluvian which cover the subsur- face fault traces are dated as being 12,000 to 14,000+ years. Accordingly, the latest "surficial" faulting may be considered as not activt, as defined earlier; and (2) Seismicity in historic time, however (i.e. , the Long Beach earthquake of magnitude 6.3 in 1933), attests to earth adjustments at depth along the 3-4 fic ^.9:�«J:..:.C,.:.rybtf.a...: ,..«.. ..,...,nw.•:.n..,.. •„ •ai... .....�..�.... ... ti, ,.. .»_•...;:,t: ...... ...._.. ..._......._..........__._._...._- ++-,..++r.+•w.rwM`w l' ',\ Newport-Inglewood zone, and is an aspect to consider also. Hence, we may adopt a more conservative viewpoint a;id assume that it can be defined as active. The probability of future "surficial" faulting on this branch involves fire factors: (1) the magnitude of earthquakes associated with surficial faulting, and (2) the recurrence interval of such e.rthquakes. In respect to the former, geologic data indicates a magnitude b or over. In respect to the latter, recur- rence data for the Newport-Inglewood zone indicates that one such event may occur near the site every 200 years. Then, using the Long Beach event in 1933 as a base, there is a probability that one magnitude 6, or over, earthquake is likely to occur sometime in the next 154 ;rears. If we assume that such an •event does occur, what will happen to the ground conditions? The neologic situation indicates that: (1) the initial earth adjustments weld occur in the basement rocks at a depth of some 10 to 12 miles, and subsurface faulting would then propagate upward along a relatively narrow zone to the overlying sediment- ary rocks; (2) the sedimentary rocks extend to depths of some 14,000 feet, they are softer and more flexible than the basement rocks, and hence there would be a tendency for the subsurface faulting to be absorbed by compression, flexing, and,splitting into a much wider zone; (3) the Lakewood deposits extend to j! depths of some 150 to 200 feet, they are even softer and more flexible than the older sedimentary rocks, and hence even more of the Subsurface faulting I7 would be absorbed by compression, flexing, and splitting; and (4) thusly, only a minor portion, if any, of the initial subsurface adjustments would be reflected f in actual fijult displacement of any one branch fault at the ground surface. i Again, reference may be made to the Long Beach earthquake of 1933 which did not n produce any observed surficial faulting. i Postulated earthquakes considered as most p►obable of being significant to the ! site during the next 100 years are as denoted in Table 3-2. f t yl 3-5 CW .(fir_ •• R.r.'-... .....,..i.t:C.1:t i:...: ..w+.+..a. .,.[at:'s.:.-.....t:.....».... ..--s..+ .. .i;.. '1..: ,.. •'.1 s, ...n....-............ . •.....—�..�. .............,..f..r+.ww+wwi..rww.«+r+.I►Ta..f T17...F'.t l.w.w. r1 Table 3-2. MAXIMUM CREDIBLE AND PROBABLE EARTHQUAKE PARAMETERS FAULT SYSTEM PROBABLE ` � MAGNITUDE* MAGNITUDE** Newport-Inglewood 7.0 6.5 Whittier/Elsinore 7.5 6.5 Sierra Madre/Cucamonga 7.5 6.5 ` San Jacinto/San Andreas 8.25 8.0 r� *The maximum credible earthquake for a particular fault is the largest magnitude Event that appears capable of occurring under, the presently known tectonic framework. **The maximum probable earthquake is the maximum earthquake likely .� to occur during a 100-year interval . It is regarded as a probable occurrence, not as an assured event that will occur at a specific time. It is considered probable that the site will experience ground shaking from n earthquake activity associated with the aforementioned active and/or potentially active fault systems. The anticipated earthquake activity has been denoted earlier in Table 3-2 and the relater!, anticipated, ground shaking is denoted in Tables 3-3 and 3-4. Cy Table 3-3. ANTICIPATED HORIZONTAL GROUND MOTION PARAMETERS FOR MAXIMUM CREDIBLE EARTHQUAKES -GROUND MOTION-PARIViETER9 DURATION FAULT SYSTEM Peak Accel . 65 of Peak 50.05 SECONL-: Newport-Inglewood 0.38 0.25 26 j. Whittier/Elsinore 0.35 0.23 32 Sierra Madre/Cucamonga 0.28 0.18 32 San Jacinto/San Andreas 0.22 0.14 35 v 3-6 1 07 AMWIMMOL OEM J � i 1 -e.rw V?,y:.....�' :("?......]ill .�u, r•..i awe r. . ,.a a.. ...... ..........._..__�..».e...... t....q.,.�....—_.......—...........__. .._......___ _'___ ._ ...—_�.................---«--........+..r�ew.w. .I '7' Table 3-4. ANTICIPATED HORIZONTAL GROUND MOTION PARAMETERS fOR MAXIMUM PROBABLE EARTHQUAKES GR U 0 M TI P TERS DURATION FAULT SYSTEM Peak Accelof Peak50.05 SECONDS ., (g) Newport-Inglewood 0.32 0.21 18 Whittier/Elsinore 0.25 0.16 18 Sierra Madre/Cucamonga 0.20 0.13 18 San Jacinto/San Andreas 0.20 0.13 34 The potential for gross soil liquifaction is considered remote due to the depth of the groundwater table and the density of the Lakewood formation deposits. 3.2.3 Mitigation Measures i 4 The site is underlain by the northwest trending Dolsa-Fairview branch of the wider Newport-inglewood fault tone. Geologic evidence indicates that "surficial" movement on this branch has n:tit occurred for 12,000 to 14,000 years, but earth- quake activity at depth has :ontinued along this Newport-Inglewood fault zone in general. Accordingly, the Bolsa-Fairview branch may best be classified as .? potentially active, as 'a conservative measure. J Fault rupture at the ground surface on this branch during the next 100 years is considered remote, However, as a conservative measure, an allowance for some ;a ground movements along the trunk line should be considered in design and con- struction. This would require a study to define the specific, probable fault I lira movement that could occur at the ground surface. Further, the lengths of trunk line along Los Patos Avenue and Bolsa Chica p Street fall within the Earthquake Hazard Special Study Zone as defined by the i California Division of Mines and Geology. Typically, construction,projects within this zone are required to have test excavations in order to determine if fault ruptures are present at or within 15± feet of the ground surface. In this case, however, the proposed trunk line excavation itself is considered appropriate as the test excavation, provided, of course, that the geologic examinations are made. 3-7 CC- •--+...r... u..-+..c u.,,.po. .vi a.t•na::.,. .... c................. .... .... ... t..,:!'........ ......._-.. ... ....._..-._..._.._... _._...... ..... .. ..wwra•+Ir►r. :i VtKHA•Y 1 The probability of soil liquifaction is also considered remote. Again, however, as a conservative measure, to mitigate this aspect, a study is required to define the specific subsurface soil and geology conditions, groundwater depths, related liquifaction potential , and then design and construct the Trunk Line to accommodate the same. Geologic data indicaDas that a relatively thick zone of impermeable clay and silt exists between the proposed Trunk Line elevations and the deeper ground- water aquifers. Accordingly, the possibility or pollution reaching these deeper aquifers in the unlikely event of a Trunk Line rupture is remote. None- theless. the thickness and soil conditions of the impermeable zone can and should be confirmed during the aforementioned studies. n In the unlikely event of a rupture, sewage is expected to be distributed horiz- ontally. Design features which may be utilized to contain sewage include: (a) an enlarged trench, (b) gravel bedding and backfill in the trench, and (c) the use of seals at intervals to prohibit sewage from spreading. 3.3 CULTURAL RESOURCES 3.3.1 Existing Conditions The following archaeological sites are close to or actually impinge upon the I � project area: CA-Ora-83/86, -84, -85, -87, -288, -368, -555 (see Figure 3-2). A'n on-the-ground survey indicated that portions of at least CA-Ora-83/E6 or -268 and -368 do, in fact, lie within the rights of way of streets in the pro- ' j�ct area. Lithic material evidenced (CA-Ora-83/86 or -288 in the vicinity of the intersection of Los Patos Avenue and Bolsa Chica Street and portions of CA-Ora-368 lie on both sides of and possibly under Warner Avenue, just east of Leslie Lane,* J. *See Appendix B for complete report. 3-8 CC'F --- P J i r t r t ✓i•' hl 4., .fit♦ iii .�/♦ .{ � !/. t' _ �(', Or T dip VIF , •t: t'` ' ` - .1 �lr � fir•• t. �', t ��; -t ,� � "ter,(��..} 1, ( `.a •,'. ( i • , 1 1 • i., k r # i �l 3.3.2 Areas of Concern Serious impacts are difficult to predict except along the north side of 'darner t Avenue, where apparently undisturbed midden (a portion of CA-Ora-368) rerlains. The placement of the sewer there would compromise, if not completely destroy, a portion of the debris (midden) which seems to constitute the most conspicu- ous characteristic of CA-Ora -368. f, 3.3.3 Mitigation Measures In view of the archaeological sensitivity of the area, the entire project area should be laced under grading surveillance. A qualified professional archaeol- ogist should be retained at client's expense to inspect any subsurface disturb- ! bance to a depth of 2 meters. It is customary to supply at least 24 hours notice to the archaeologist to appear on-site, and the archaeologist should have the �., explicit authority on-site to divery at- delay equipment if cultural materials come to light. If significant cultural resources appear during grading or clearing, work should cease in the area of the discovery until a mitigation plan has been developed and approved by the City of Huntington Beach Planning a� Department staff. The placement of the sewer on the north side of Warner is the less desirable alternative, although a wideningof Warner Avenue to conform to the full width ' i to the east would likely also destroy this portion of the midden at CA-Ora-368. i? Therefore, if the widening of darner Avenue in the project area Is expected in the future, then it would probably make sense to mitigate impacts to the portion of CA-Ora-368 now, before the midden sustains damage. Regardless, if economics dictate the placement of the sewer on the north side of Warner Avenue, then a Test Phase auger transect should be run along the right of way to gather [Fiore information about the extent, depth and character of the midden deposits, followed by mitigation of impacts (by preservation of data) by intruding some 3� hand-excavated pits into the cultural deposits. V 3-10 r l' 3.4 LAND USE 3.4.1 Existing_Conditions The service area of the proposed sewer line encompasses an area of approximately 1,351 acres* located within the City of Huntington Beach and the unincorporated area of Sunset Beach and Bolsa Chica State Beach. The luntington Harbor and n Sunset Beach areas are largely developed with no sizeable areas of vacant land remaining. The Huntington Beach Master Plan of Sewers (Keith and Associates) indicates that the Warner Avenue City sewer line from Algonquin Street to Graham Street is deficient in capacity. The existing condition is a potential health menace. County Sanitation criteria states that the depth of flow over diameter (D/d) should not exceed 0.75 (in lines larger than 18 inches) to allow a sufficient margin for safety, The Warner Avenue line is presently flowing at capacity from Algonquin to Graham Streets. i The existing line also lacks the capacity to serve future infill development. n The project is in conformance with long-range planning goals for sanitation facilities. The proposed project was incorporated into the Orange Ccunty Master Plan of Sewers by approval of the Director of Orange County Sanitation c�► District on March 14, 1979. � a As the service area of the sewer line is largely developed, this project is not expected to generate significant population growth. However, the undeve- V loped Bolsa Chica Mesa area south of Los Patos Avenue is within the City of Huntington Beach Sphere of Influence designated by the Local Agency Formation Commission (Figure 3-3). q> The City presently designates this area as a Planning Reserve and it is zoned by the County for agricultural use. The Bolsa Chica area is identified in the Open Space and Conservation Element of the Huntington Beach General Plan *City of Huntington heath, Advance Planning Department 3-11 I � it • , •r - I l r , `t AhjY � f 1 , �777- 114 ✓•i �. ••••• rT »t� ••'»,• ..�,T'I� •rF�'�, '�.t?{ l •a l•, �� Jr ,�•��4ry�}�y i �� , � • �1�1�� .. .. 'i�•�d�l" tiny •:_. 1:',c1f„*„-,,.. i' `'f. 4,Tj ,. 7rov• ..' ... d t••, .,�: ri.t�, it ••fir" 4.4 r; .. S. 'i•,%•�►' .;,,• 54.E►• '�L, Figure 3-3. UUIITIIIGTON 0EACII SPHERE OF IIIFLUENCE 1► 3-12 Aclww" NEW as a first priority area for preservation of open space. The area has many natural and historic resources including bluffs, tree stands, scenic vistas, minerals, and archaeological sites. '1 Earlier in 1979, Signal Landmark Properties proposed a zone change which would allow the development of 796-1998 residential units in the Bolsa Chica Mesa area. Concern has been expressed regarding the impacts upon public services and potential for growth inducement if the Bolsa Chica ilesa was serviced by the Warner Avenue relief sewer line. At present, there are no plans for residential development of the Bolsa Chica Mesa area. The General Plan Amendment by Signal Landmark Properties was with- drawn pending the formation of development policies for that area. The City of Huntington Beach is in the process of developing a Local Coastal Plan which will address Bolsa Chica Mesa and the County of Orange Environmental Management Agency -is also preparing a Local Coastal Program which will encompass that , area. The Warner Avenue relief line has not been sized to acccmnodate development on the Bolsa Chica Mesa (Barry Beech, Nall and Foreman). This area is nut within I. the County Sanitation District although it falls within the District No. 11 Zone of Influence. The County Sanitation facilities do not, at this time, have the capacity to service the Bolsa Chica Mesa or wetland area (Tom Dawes, OCSD). Bolsa Chica i Mesa is also within the area specified in Condition 0.1 of Coastal Permit 253-78 i which is included in Appendix D of this report. 3.4.2 Areas of Concern The relief serer line is expected to reduce flows in the existing Warner Avenue � y line to a O/d of 0.50. This will provide an adequate safety margin to prevent sewage overflow and will allow for infill development in accordance with current zoning (Figures 3-4, 3-5 and 3-6). The predicted D/d for the Warner 3-13 C C twi . ..M.� . "^ ♦.11•-wM b.«v ..n _:J:.. z.... .............. . ...1':.. ...lC. N.. .... .....-_. ._........ .....�_._.�...�.�..»,: �.erwaa+hNivf e:+J11L1aw'174,h11y+' t i as o o ' �..r•I,h it�'� Y i E3 ` 1 I • � .� ;. �► rL LECEUD 4 } ; •�• :I;/ 30UNCARY VUNTING7,0N 3EACI .A �A • ' CM-SIC AL ' ... 'ARCS •'�.�� WZEESSIWAL OFFICrS ,! CGLLEG.b s 4IGH MOMS Figure 3-4 GOLF" '"UP=" PREDOMINANT EXISTING LAND USE WITHIN CITY OF HUNTINGTON BEACH 1' (NOVEMBER 1978) 3-14 t -- ••rrr�r."'��r"`�.++_�_w..r`w.�+.•+w.r..ram b3 ' b e , ..• ��I •� ! � L ��, � it � I � � , � � :.•Y :I'iF.lt 3f1C� � I � � � I { 1 i (r •a�au•.s au. a._.�.s sr 1-_1s.� '+'. i .. '++fir.,=77��,r�• � •. ,• ------•-�.-a.. j TT ..� ,fit •�t��}�I «.,• � , i -, r {: ��., i�•..T�•syja :lt_v 1 C, Vs .•.•••.• GIST 30WIDARr ?EAL4 '•'•` . �. �r ` �1 •w 1 t Figure 3•-5 VACANT AREAS WITHIN CITY OF HUNTINGTON BEACH js (!NOVEMBER 1978) t 3-15 ^1 0 t a, N��. • ' j,r'• .S•j� •�� Y' , i •M, '-ill-- , p. y r i j w ,, $ .0 A •wry r r • I �IIl 1 1112 ,. I I • i � LE4c''10 '•" '"�••'•• CITY 3OWMARY HUYtINGTON 3E.M a RESICfvYiAl =� '-�� v� 1 INCUS RIAL Q� CG�rERC:AI i• t C) EM PARKS C'] PRUFESSI09AL OFFICES COLLEGES & HIGH SCHOOLS Nour8 3-6 � GOLF C0mEs PREDOMINANT ULTIMATE LAND USE WITHIN CITY CE HUNTINGTON BEACH 3-'16 '.'ti.n.r..-1'^<t�'i+M_....--..r-�._.....«.........,n.-n, n.,.:...w........�..... .....�...,::._ ... ).. ...,,........ .... .. - ....--......�.. +....^.......,...........-......Fr.wr..-..»++r+rrnraii;!"4.:rYtli. ! 1 r n Avenue sewer line is presented on Figure 3-7. These figures assu.ne ultimate build-out of the service area with the Warner Avenue relief line in service. i Excess capacity in the 24-inch relief line is estimated to be approximately 1.2 cfs.* This tentative estimate is based on the preliminary server design. ;. Assuming a medium-density land use mix, the projected capacity could serve approximately 200 acres. With low-density development, the relief line could accommodate approximately 500 acres. n 3.4.3 Mitigation Measures As server conditions are subject to frequent change, it is recommended that n further evaluation of service capacity be conducted when development policies for the Bolsa Chica area have been finalized and coastal plans have been adopted. 0 3.5 PUBLIC SERVICES i 3.5.1 Existing Conditions n The service area of the proposed proJact is fully improved and no sizeable undeveloped areas exist. 3.5.2 Areas of Concern ' 4 No branch sewers or laterals will be connecting to the relief line. The only i points of connection will be at Los Patos at Marina View Place or at Warner ��s{ Avenue, approximately 800 feet west of Graham Street, No new or existing PP 1 g r. development will tie into the relief line (Barry Beech, Hall and Foreman). The relief line will reduce sewer flows in the existing Warner Avenue trunk . F: *Barry Beech, Hall and Foreman, Inc. , personal communication, 10-30-79 !' 3-17KIP ' tAN r .,w-:i.0 .. .. .+.�.1;�,:.�� . ,.. ... .... . .. ..i. .7 r b..... ..,.i .."r:i.-'. Arc ... ,.._.._.._ .......<........ -.._.....,— ...,....,........o.:r.-v+�nw.,+ ...r« .. CIVIL ENGINEERING ENVIRONMENTAL PLANNING LAND SURVEYING r SUBJECT dY Cc DATE . 1108NO. SHEET OF Rip r i; ' (�" ��" Imo]•. ��.. `. �• R M • R . . � 0-0 a o o c��° coo 110 4.cJ✓1ti= o.oo� o.O?,Mi 1 Ln p p�- 1 F11 t� 0 1 I ( (� I N r c1d W1 we2 IN (/.Gr 4 ©.os OR"? QXa7 CD• hc:) 0-Lio O.4b i . Figure 3-7. PREDICTED D/d FCR WARNER AVENUE 3-18 r, 2530 NORTH GRAND AVENUE P O BOX 11667 • SANTA ANA. CALIFOANIA 97711 TELEPHONE (714) 542.2336 ; ' � ....: .. ivy•, r 'h line which will allow capacity for infill development according to the zoning designations for that area. The construction of the relief line is not � . expected to significantly increase public service demands. � 3.5.3 Mitigation Measures No mitigation measures are proposed. Si k . 3 f. 3-I9 C IC P I F• .. Section 4 r DISCUSSION OF IMPACTS 't 1. •j+r�.. - � � •� ..`. :Yt 1 _ ' n n Section 4 +`+ ' f DISCUSSION OF IMPACTS I � 4.1 INTRODUCTION The potential impacts of the proposed project are discussed in this section. The adverse impacts and their respective mitigation measures are summarized. Beneficial, cumulative, and irreversible impacts are also presented. 4.2 POTENTIAL IMPACTS The potential impacts which were discussed in the Environmental Study Sector � 0 Reports are summarized here. The mitigation measures for potential impacts are included. 4.2.1 Adverse Impacts I If the sewer is constructed along the proposed alignment, the site will prob- ably experience some ground shaking from earthquake activity. An allowance for ground shaking from earthquake movement along the trunk line should be considered in design and construction. This would require a study to define the specific, probable fault line movement that could occur at the ground surface. The unlikely event of a trunk line rupture should be considered as a conservative measure. Potential impacts can be mitigated by placing gravel bedding and back- fill in the trench and sealing the trench at intervals. 4-1 ` __ . i6K FFF .-.�.+...+�a�va��Vw .Yrw:>....t..ww•....wn.«.w..r-s... ........-.........._. .�.. .w..t ti,'3>S.. aw i .r r...+.......__.. .. _.........-� -�.......��... .. The Warner Avenue portion of the sewer would disturb an existing midden (a por- tion of CA-Ora-368). A qualified archaeologist should be retained to inspect any subsurface disturbance to a depth of 2 meters. If the sewer is placed on the north side of Warner Avenue, a Test Phase auger transect should be run .�� along the right of way to gather information about the extent, character, and depth of midden deposits i 4.2.2 Beneficial Impacts I The relief sewer line would remove a potential health hazard by reducing flows in the existing Warner Avenue line to a safe level . Additional capacity in the Warner Avenue line would facilitate service to future infill development. } 4.3 CUMULATIVE AND UNAVOIDABLE IMPACTS Incremental and unavoidable impacts associated with this project are increases in the demand for public services and the disturbance of an archaeological site. 3 4.4 GROWTH INDUCEMENT As the service area is largely developed and the relief line has not been sized to accommodate the Bolsa Chica. area, this project is not expected to have a significant growth-inducing impact. . However, an evaluai,.ion of existing sewer 9 9 P capacity is recommended after the County Local Coastal 'grogram and the Huntington Beach Coastal Plan have been adopted. 4.5 ALTERNATIVES TO THE PROPOSED ACTION 4.5.1 No Pro ect I This alternative would prolong the existence of a potential health hazard. It would also present a service problem for future development in the service area. n� 4-2 CA�_ p �..,`O.i'.0 t�Y::':`tT'`ci.:...^.,'.v......-....,•.. w. ..r.w...�.r..+�.•-.�..-..... �..... •.tn.!'.:....._....,ay.......�..-. .._..._..-�...�..... .-_�_—.�...,..... +..*vrT+pliR.XTaOtY�v+ i R 1 4.5.2 Construction of a City_ Line The City could, at a later date, construct a local sewer line to relieve existing facilities. This would be less desira'ale economically as the City would bear the total expense. By relieving thr: impacted Warner Avenue line through the construction of a County sewer lime, the City will be reimbursed by the CSD No. 11. 4.5.3 Alternate Alignment An alternate sewer alignment was proposed which would locate the sewer line � ,� entirely in Warner Avenue. This concept was rejected in favor of the proposed ^ , design to reduce construction in Warner Avenue, a major arterial . By locating a portion of the sewer line in Bolsa Chica and Los Patos Avenues, there will be lesser transportation and circulation impacts. 4.6 SKCRT-TERM VERSUS LONG-TERN PRODUCTIVITY The ability of the existing Warner Avenue trim k line to provide adequate sewer service is limited. The existing deficiency in the portion from Algonquin Street to Graham Street must be remedied in the near future. .� The existing line cannot provide ultimate service capacity in accordance-with the present zoning. Construction of the proposed project would facilitate future infill 'development. Thefrelief line would 'provide a short-tt3 m benefit by eliminating a health hazard and would comply with long-term planning goals a by construction of a County sewer line indicated in the Orange County Master Plan of Sewers. I 4.7 IRREVERSIBLE IMPACTS 1 The construction of this project will result in the consumption of raw materials and energy. The irreversible commitment of resources appears to be justified by the health and service benefits afforded with this project. 4-3 CIEC w r i BIBLIOGRAPHY Al bee, A.L. and Smith, J.L. , 1966, Earthquake Characteristics and Fault Activity in Southern California: Engineering Geology in Southern California; AEG. Allen, C.R. et al, 1965, Relationship Between Seismicity and Geologic Structure in the Southern California Region: Bull. Seismological Society America. Bolt•, B.A. , 1973, Duration of Strong Ground Motion: Proceedings of the Fifth World Conference on Earthquake Engineering. California Department of Water Resources, 1968, Sea Water Intrusion Bolsa-Sunset Area, Orange County: Bulletin No. 63-2. California Department of Water Resources, 1966, Santa Ana Gap Salinity Barrier, Orange County: Bulletin No. 147-1. California Department of Water Resources, 1961, Planned Utilization of the Groundwater Basins of the Coastal Plain of Los Angeles County; Appendix A ? Groundwater Geology: Bulletin No. 104. California Division of Mines and Geology, 1977, California: Special Fault Hazard Zones. Californi Division of Mines and Geology, 1974, Greensfelder, R.W., Maximum Credible Rock Acceleration from Earthquakes in California. California Division of Mines and Geology, 1974, Newport-Inglewood Structural Zone, Southern California: Special Report 114. '+ California Division of Mines and Geology, 19613, Geologic Map Sheets of . California. i City of Huntington Beach, 1974, Geotechnical Inputs (Seismic Safety Element Report). City of Huntington Beach, December 1976, General Plan. i Keith and Associates, Master Plan of Sewers, City of Huntington Beach, February 1977. Leighton-Yen ;nd Associates, Geotechnical Inputs, February 1974. Ladry Associates, Sever Master Plan, November 1978, Metropolitan Water District, 1967, Detailed Investigation of Bolsa Island Site, by Bechten Corporation. Orange County Water District, 1979, Groundwater Data for 1978. MUM , J l r w.�.eyiµ.N vim.waw-,.... .r.c: �........- ...�........•a ...sr... .....•.....t.......1 i . •, ..-.ss........ .....r. •.......�... .... rM.... j e Polant, J.E. et al , li'56, Groundwater Geology of the Coastal Zone Long Beach, Santa Ana-Area, California: Geological Survey Water Supply Paper 1109. Seed, H.B. et al , 1975, Relationships Between Maximum Acceleration, Maximum Velocity, Distance from Source and Local Site Conditions for Moderately Strong Earthquakes: Earthquake Engineering Research Center, University of California. Seed, H.B. , and Idriss, I.M. , 1971, Simplified Procedure for Evaluating Soil Liquifaction Potential: Journal of Soil Mechanics and Foundations Division, ASCE, Volume 97. -� Seed, H.R. et al, ,1968, Characteristics of Rock Motions During Earthquakes: 'Jaurnal of Geotechnical Engineering, American Society of Civil Engineers, Volume 95, No. SM5. Yerkes, T.H. et al, 1965, Geology of the Los Angeles Basin California - An Introduction: Geological Survey Professional Paper 420-A. 'a J _ ; i . I .4 =-'...rw+.nV•.smwet.w+.r+w•ex.............w-r:...,�:.,..w..s.c,..r-.a.un.r..wti....w+..r:li..;..:'af:Ji t.:.o r........,..,.._...... .-.,...._...,_.-._ �....--.-,+-,...+.r.wwr......�..r...+.+r.n+a3Ki�S1:'a'3dtfC • + �L'.1' :. ..it 3•^ COMMENTS ON DRAFT EIR AND. RESPONSES r , t•'I p" t �"i F� ii l 'i;;� ti i•`tr �t'{t e .. � � 1 ( 1 t• - 5t t COMMENTS ON DRAFT EIR AND RESPONSES - Response to comments by Bill Patapoff Comment 1, p. 2-2: As bold line was used to indicate the existing sewer, this was not used for the City/County boundary in order to minimize confusion. Co,-ment 2, p. 2-4: The Balsa Chica State Beach is Shown in the Service Area and is specified on p. 3-11 as part of the Service Area. The City boundary can be more clearly seen in Figure 2-4, p. 2-8. Comment 3, p. 2-4: The graph has been adjusted to include this 'information. Comment 40 p. 2-8: The numbers indicate trunk systems which are as follows: 1. Adams Avenue'Sewer 2. Be'ach"Boulevard Trunk Sewer 3. Brookhurst Street Sevier r, 4. BUshard Street 'Sewer 5. 'Edgewater Lane Sewer (Harbor) 6. Edwards Avenue Trunk Sewer 1, Gothard Street Trunk Sewer (South of Slater Avenue 8. Gothard Street Trunk Sewer (North of Slater Avenue 9. Graham Street Trunk Sewer -j 10. Heil Avenue Relief Sewer 11. Newland Street Sewer 12. Orange - 22nd Street Sewer 13. Warner Avenue Trunk Sewer la. Yorktown Avenue Sewer Comment',5,. p. 3=11: The Keith and Associates Report was referenced as it is presently the officially adopted Master Plan of Sewers for the City of Huntington Beach. ` Comment 6, p. 4-3, p. 4-6: Removal of a potential health hazard will produce both short-tenor and long-term benefits. Comments were also received from Orange County Transit District and the California Department of Fish and Game., These comments did not require response. The above correspondence is included in this section. t f i wwrMyt..pit'JY]+iRM.J.•LJMJrw......,-......--........`..._...w......w�..... - ... .......ter u'. .af r .....r. ..•+._. .. .......•..w�—....—................ t t '1 CITY OF HNJNTINGTO" BEACH INTER-DEPARTMENT COMMUNICATION ' ►nxvtrreiov re�cn To: Jam Barnes From : Bill Patapoff Associate Planner Civil Engineer Associate Subject: WARMER AVENUE RELIEF SEWER, Date December 6, 1979 PHASE II, DRAFT EIR 79-2, CC-471 (File: Misc Req) The following comments are in response to your memo concerning the subject project: Pg. 2 2, show City/County boundary in bold line Pg. 2 - 4, include Bolsa Chica State Beach in service area and show City Boundry Pg. 2 - 4, Table 2-1 incomplete Pg. 2 - 80 Figure 2-4 needs explanation of what ntmbers mean Pg. 3 -11, use,Lowry Fgiort, not Keith and Associates Report Pg. 4 - 3, P 4.6, "elkitinating the kealth hazard" is not a "short-tern" benefit BP:ik N!.4 INGTON BEACH ' PLANNING DEPT. DEC 7 .197y P. 0. Box 190 Huntington Beach,CA 92648 Q J , -hl-.W':tyw.w-+..+.T Ytn v..n...s.�r,v.w...wn....w.......-....._..... «ram .W vti'.Il fl Lir:t'.+`.a._............ ... .. ........................�_......�.«.-..r......,•w-Mwrn.w--+�eKtfTQ'Y"{Y.Y:tW1WY` . l t '1 ok ORANGE COUNTY TRANSIT DISTRICT i 4 December 7, 1979 1 ' :lt::T0y a7FAcH PLANNING DEPT. Mr. James R. Barnes ��f :. 1 � �� Associate Planner j City of Iluntington Beach Huntinp Box 190.0 P. I Department of Development Serrvice�s r, P.O. Box 190 Beach,CA92648 j Huntington Beach, California 92648 Dear Hr. Barnes: SLIBJEC'r: EIR 79-2 Warner Avenue Sewer We have reviewed the subject Environmental Impact Report and would like to advise .you that OCTD Route No. 158 is operated on that portion of Warner with hourly service between 6:30 a.m. and 7:00 p.m. We would like to he advised in advance of the timing for the construction of the sewer line. You may advise our Superintendent of Schedules, Ed Buckley, at 971-6439. Very truly yours, 00, t Robert C. Hartwig Environmental Coordinator ` RCII:P I i . 1 i t ' i .. 11222 ACACIA PARKWAY• P.O.BOX 3005• GARDEN GnOVE,CALIFORNIA 92642•PHONE(714)071.62o9 i r J , ^«.vss..w.Ht.v+.w.+a.:...,•.:-.....,'�Y. ..'..•:!......,.f'...1:..._ ..c.'.:. ....:..-..:.,...a. .. . .1 -. �i.. ... in....�-...�....r........,.�...�..r..._.....r.+.•rrr..w.....a�+N.MI.:{"U',t7l t�lTiH STATE Of CAUFORN1A—RESOURCES A09NCY EDMUND G. BROWN JR.,CLwomoi DEPARTMENT OF FISH AND GAME 350 Golden Shore Long Beach, CA 90802 QJ (213) 590-5113 Decemberlq 1.979 I.,I IHTIN CTGw BENCH Mr, James R. Barnes PIANNIr:G DEPT. Department of Development Services City of Huntington Beach P.O. Box 190 Bux 190 Huntington Beach CA 9264a P. �� ' Huntington Beach,CA g2548 Dear Mr. Barnes: We have the Zollowing comments regarding Draft EIR 79-2 describing the Phase II warner Avenue Relief Sewer project. We have no serious concerns with the development of the proposed project i as it is explained in the HEIR It is our understanding that the project purpose is to relieve sewage capacity conditions in the existing Warner Avenue trunk sewer line. Additionally, no new or existing urban commercial developments wi11 be allowed to tie into the relief sewer line. However, we have particular concerns for the preservation of open space within the Bolsa Chica Mesa adjacent to Los Patos Avenue. We support in concept the measures contained in the Open Space and Conservation Element of the City's General Plan that has as its first,priority the preservation of Bolsa Ctiica Mesa for its natural and cultural resources. To achieve this objective we recommend that the proposed sewer line must not be allowed in any way to be modified or added to in a manner that, would stiniu.- late urban/cammercial developments within Bolsa Chica Mesa. Thank you for the opportunity to review and comment on this document. If you have any questions, please contact Jack L. Spruill or Bruce E. E1,iason of our lhvironmental Services staff. The telephone number is 213-590-5137. Sincerely, Fred A. Wor.thley Jr. Regional. K- ner Region 5 i Y' I •' I :I f m • m I t i . t. . 4 S. APP'ndix A �• SOILS, GEOLOGY, AND SEISMOLOGY DATA t> is I 4 Stronger local shocks along the Newport-Ingle-,vood zone, March 1933 through 1972. I■trarity tyuretrr Drptb E (Aladifrd Aletai- A'o•r� !1:'irr o/ Data lacdirydals MirraVil r.di tatitedt la.rgirudf farm 1933 Oct.2� Signal 11111(Loot Bach,Los Angeles,Compton. Bell) V1 5.4 J3447' 1160O,t' `) 1939 Ike.27 Lout Beach(Huntington PatL•,and Long Desch damaged) V1 4.S 33'47' 116012, t 1941 Oct.21 Gardena(damage in west Dominruez oil Eeld) V11 4.9 33•49' 113.11, 1941 Oct.22 3.8 33'52' 116.13, 1944 ut a 18 Dominguct hills 16DU3 PST V1 4.S 33'52' 1180131 1944 jdne 16 Mmingur.hills 19,'ZD7 PST "sharp 4.4 33'52' 116'13' jarring•• 1949 Des 26 Inglewood and Westch;ster (El Segundo, Tor. s rsncr,Hawthorne.Hollywood) "sharp" I l 1961 Oct.4 Orange County 3.7 13.8' 1I7.90 18 kin 1961 ML 20 3.9 33.7' 117.9' 19 km 1961 Oct.20 Orange County 4 latter shocks out of 8 tumors 4.6 33.6' 118.0' 17 km 1961Oct.20 4.2 33.7' 118.0' 20lm ' IPW Oct.20 4.2 31.7' 118.0' 27 km 1961 Nov.20 , Orange County(with 3 aftershocks) 4.0 33.7' 117.9' 17 km 1963 Nor. 12 Felt nvcr bW square miles of southwest Lot ' Art let County,most sharply in Santa Monica,.1n {twood,IlaWw;n Hills 3.0 34.00 II8.3' 16 km 1W Oct.Oct.2 Fe t over southwest Los Angeles County, felt shstply in less,Nn:elcs 3.8 34.0' 118.3' 11 in, 19167 May 12 Between South Gate and Lynwood,felt in Paces- deaa 2.9 33'SS.B' 118.11.2' 10 ken 1969 Oct 27 Lacuna Reach(onshore) :.S s :1'32.7' 117'48.4' 6 km 1970 Scpt. 14 Felt in Inrscwood, Culver City, and West Los Anrtits airs 3.0 34.3.7' 118.21.0' 8 1970 Sep-23 At least 5 shocks felt in Culver City.Hawthorne, Hermoss llrarh. lnr)e-W. Tottsncr. Santa Monica. 11ollrrs-rad, paldwin fiills, West Los AnRe►n.\lanhattan(leach V 4.2 34'00, 118.17' 10 km 1970 Stpt.2] Felt in InrlewL"J Torrance aria 3.3 J3.54' 116'20' 10 km 1970 Sept.23 Pelt in lncicrrrvtid•7 nrrauce area 3.2 33'54, 118'20' 10 I'm 1970 Sept.V felt in InglewwJ.'iotrsnce area 3.2 133'30' 118.21' 10 knr r CDMG SFr; 114 ,.a A- J 1 .y 1 , 1 GAP / t vtc Area 1 L deft � \. �.�JJ�-ti nOL.�.Ar~ �•w G•. [" LICNICA t•' '6� too u ._ , „f Prop ed Trunk Line so ; y Cr 41 1 K£SA .29\. �� •• �. ,�• �,�-•.,?fl.•. v�1 CAP so '••}.'`.lt.`♦� ;'R�!t t• � �` 1'� •.ter" ,��\\\��.;\.-L .L 1• L`,•ra\\\`�. \��,\� `�E'er �.; . i MACH 1 Inch = 1 mile ftt t ,` •? t • 1 LQD IC PV7A A-3 LEGEND HACH AND DUNE OtPOSIT/ L�J SAND M t u ALLUVIUM ' 0>I UNDIriCR[NTIA1[0 :.ONTni[NT/L ANU LAp00RAL i M SAND.SR.T AND CLAY a u� LAKE%VJD FORMATION err CO%TI%EN:AL AND MARINE CRAVEL.SAND.SLT AND CLAY t -- CONTACT.CASHED WHERE APPROSIMATELY LOCATED. Y a ;,�_•• txNC'R11 fAULT.DASNED 1RHLRt ATFROX•YATfLY tOCATED.OpTTED *HERE CONCEALED.U UPTHROWN SIDE. ! 0 DOWNTHROWN SIDE.ARROWS ►IOICATE RELATIVE LATERAL MOVEMENT. ! I%rERREO rAULT.APPROKIMATELY LOCATED AND CMUCALED. LOCATION OF WELLS AND TEST HOLES WITH LOGS QAI WATER WELL OR BACKrILLED TEST HOLE WITH DRILLER'! L04 �I kl-I AND$11.1 TO 4 SIGNAL OIL AND GAS COMPANY TEST HOLES •r Q OBSERVATIMI WELL OR BACKFILLrO TEST HOLE WITH CEOLOZIST'! LCC IS-1 BS AND BSO-DEPARTMENT Or WATER RESOURCES OS-UNITED STATES GEOLOGICAL SURVEY jI © AS ABOVE WITH ELECTRIC LOG t3.3 AE-LDS ANGELES COUNTY FLOOD CONTROL DISTRICT rl� HH-HUNTt'VGTON HARBOUR CORPORATION O OL WELL WITH CRILLER'S LOG 7. !J• OIL WELL WITH ELECTRIC LOG QI.1 SNALLCr OBSERVAI ION WELL WITH GEOLOGIST'S LW +I L.Ir a SOIL BORIN'i LOG F I 1 �;I •TATt OP cALnnRw,♦ TIM FICSaVnCE9 AGENCY DEPA►iTMCNT OF I'JATE" r1ESOURCES AowttrRN DI9TI11CT SEA • WATER INTRUSION : DOLSA-SUNSET ARZA, t� ORANGE COUNTY n-14 II I I J I . 1 Y fi SS/tlw-+?el-7 j O I }� � � 1, � ssmw-nr• .- ` � } �•� :1 ,'�•,::.t�'' .,.t4�•j t�aslttw-tout-a lt:ll till 14 U , . 52ntw-20�I , > t C tP n i � II a 1 � }� • � i r!�3 `!t1 +... ,:�• } 'till� '.!.•�M i �- i. ttt� ; • �, r• ] SSHiw-tut ' ! � .�•r. ��it}�tt1:. '��+ ,� tt1'' �- •.• eSA-1 to • '` ;�. sslnw-teat � ' s S SSIIIw-te►I 3 U 1. N I" YAW wLACCD oft � N a . O .r' t r •�• i �r'�� Ili•tlt .iR 1 , ssnrw-IuCI re wo UV= GJ � �+ r• j f , r rlftr �, : ; rILI rf 104., • _ r. i.r a a"11 + i ..�8'�� rt t•,+ tYe�w-rint LEGEND HYDROGEOLOGIC UNITS AQUIFER. UNCONSOLIDATED SAND OR GRAVEL WITH SILT OR CLAY.LOW TO IIIGH PERMEABILITY. " ;�;' ..:•;• At3UICLUbE.F REOOMINANTLat SILT,CLAY, SANDY SILT OR N SANDY CLAY.VERY LOW PERMEABILITY. . LITHOLOGIC SYMBOLS r 00 o°c°a u GRAVEL �1 .f 11 a COARSE SAND ,x'. •j '�,'. .. FINE TO MEDIUM SAND • '.°. SAND OR GRAVEL WITH SILT OR CLAY �O..:ram -+ i.• r , SUBSURFACE CONTROL DATA 5S/12W-12P5 WATER WELL WITH DRILLERS LOG. DASHED WHERE LOG IS UNAVAILABLE. 5S/IIW-BI-7 . OS CO -7 TEST HOLE OR OBSERVATION WELL WITH GEOLOGISTS LOG AND/OR ELECTRIC LOG. y AE -LOS ANGELES COU14TY FLOOC CONTROL DISTRICT. 1 BS AND BSO -DEPARTtAcf4T OF WATER RESOURCES. HH-HUNTINGTON HARBOUR CORPORATION. � 5S/IIY�►-19Ho OIL WELL WITH ELECTRIC LOG.DASHED WHERE LOG IS UNAVAILABLE. TTAt[p►CaL1IOMM1A vit:ncsounccs Aar_UCr p vt:rART►AEUT OF WA70t "EtnUnE:9 saul"tR4 OfSTMICT SF.A - WATER IIFTItU"JION: GOLSA-SUNSET AREA, A-7 ORANGE COUNTY I t I'} 0 6 6.9 -� 10 7--7.9 Magnitude (Richter scale), Earthquakes of magnitude 6 $--8.5 and ovec since 1852 Active Faust system lx9o1 � �1922 194G- 1934� Bakersfield 1 1952%# 'opt 1947 �19iG fat i852— '. -1857 1927 -"""'� sad ad oft ea -+1•�an ynt2 1�371 s Santa Barbara •■-• 1925/ 119411923- Sd �1948 Los Angeles ` 1918o'1dt,, _1933-' 189 Site Location 1937` `1954 � 1968-** E! Centro I itn- 75mi 1942'�� 1915� Sau Diego # --�--' ioaa' FAULT & EARTHQUAKE MAP A-8 M V. LAW11ASTI.31 G ;;a., INC, I i I i • .• � 1' �� 1. L� 1 1 • 1+r�..� . Cr-R •••` M t ; C 1 r• �J ...± CITY OF ,:t.•cr t~~•^• t F-�S HUNTINGTON PEACH '« r f 1 ..I . MIX:[ ttllhtt t�l�0�tr; '«��' i' t`� ,j; ` .• -�._ f:i; '-�.t. = -- =.�; 1 Inch _ �3 mile •;•�� : '" 1 1• •3�' •.i.r. .y.., � ••�".� �.r I=.l_ •.I• �+��lf.'.'_� ��: is ••r/W�Alyqz J�';�. 7 �i ! ►ry, ._...L _.= '•.1 - ,at 1� Proposed Trunk Line �. /r r l.-L /.L� 3 t •• .. .a. '�.jR ( �` • ;.71-4— it, �l.th' �„�, • Yam-- {; � .,!•�- ...i��iri, � �1 ' (` -� '� avC. . //"'.1 �►r-�r-1!: r � t'�f-ff}}}}---- rr J j:�JT7 ' n EARTNQUAKE HAZARD n-9 SPECIAL STUDY ZONE tj tog l �--...� I•t at.,�=�;`�A'=-...:.S.:r:-•� _..,j._.�44..I.�.r�...... �-._ 1-4 i .,... ..... - ;u:•n.t y,.a. i+w .J�. � •�y..,j.j It - �......�. -,.L.7ra 4r.jN Nz .� i...._. .... �.:Z- .-..gip...:" •. .�.t,.- ...i•a_ ..J+ ... `��I1 . i=� I�t •I •j � _ __ �! I _` ••� t�r[•r _""'.ww•.r.+.y. �' :1'r•w,.•�I• ''4yr� •.l�t:'r�i�,,,.r.... _ �; r _•sari.+. p •'1 ��.s.•':!•'.ar.y,^�: Ir 1� � l / .t; ../� r� • ail f i'f( f+ 1. i.w: II �'';'`+��. � �" t R '�, !� r`l�iL=•+tY;��J� �-�'" yet � 3p / -•i .f 1�`'�..•".r..+.a!`!u..�., aar .ate rL, ��' "�(�'` • 1 ?:.%.1��,,'t! s�r .. v.•} it ...�... a. ��w 'If GROUNDWATER CONTOUR MAP '�•" «.�y>� 4..d�h�-•i •� � � ! NOVEMUEn 1.19713 p 2 q 6 Orange County Water District .1 ..— ..... ., .. N'' A-iq •', Appendix B ARCHAEOLOGICAL ELEMENT FOR AN ENVIRONMENTAL IMPACT REPORT EVALUATING THE IMPACTS OF A PROPOSED SEWER EXTENSION ALONG WARNER/BOLSA CHICA/LOS i::TOS IN THE CITY OF HUNTINGTON REACH ! County of Orange, California Prepared by: ° Jack L. Zahniser CHNIBERS CONSULTANTS AND PLANNERS Q i n October 1979 R Ci 1,J l � Appendix B THIS STUDY This study was solicited by the Planning Department of the City of Huntington n Beach in the County of Orange, California, hereinafter referred to as "client". from Chambers Consultants and Planners (Stanton, California). The fieldwork which this report documents was performed by Jack L. Zahniser, nereinafter referred to as "consultant". The report was prepared by the consultant. utilizing site data supplied by the client and by the Society for California �I Archaeology (SCA) Clearinghouse No. 14 located at California State University, !, Fullerton, California. Consultant's res. .-e: is is Attachment 1 to this appendix. The fieldwork was performed on the 13th and 14th of September 1979. Solicita- tion from client describes project as follows: "Construction of a trunk sewer in Los Patos Avenue from Marina i View Place to Bolsa Chica Street, in Bolsa Chica Street from Los i n Patos Avenue to Earner Avenue and in Warner Avenue from Bolsa Chica Street to a point approximately 800 feet westerly of Graham Street. The sewer project will be designed and administered by the City and owned and maintained by the OCSD." i � I D This report may not be edited, altered. or amended without the written consent of the author, and it must appear intact as an appendix to any report in which it is quoted or summarized 1� LOCATIN OF THE PROJECT This sewer extension project is located in the; northwest quadrant of the City 1 of Huntington Beach. in the general area of Huntington Harbor. The sewer extension will run west an Warner Avenue from Graham Street to bolsa Chica Avenue, thence south on Bolsa Chica to Los Patos, and thence west on Los Patos as far as Marina View Place. The portions of these streets wholly contain 0 what will hereinafter be referred to as the "project area". The exact B-2 k� piacement of the sewer has not yet been engineered, but will lie srniewhere in presently deeded (7) right of wasp for the above-named streets. DESCRIPTION OF THE PROJECT AREA Most of the project area has already been developed. Improved streets lie all i along the project area, although the margins of the streets appear unfinished here and there (especially on Los Patos). Sidewalks and landscaped boulevards are not in many arras, but substantial grading has taken place along the rights of way, with only a fear exceptions. Figure B-1 snows the relationships of the ,.� project area to other natural and cultural features in the City of Huntington s Beach. Figure B-2 exhibits the approximate location of areas free of ground cover, areas which were inspected by consultant during the fieldwork portion of the project. METHODOLOGY i Consultant conducted both a records check and an on-the-ground field reconnais- sance of the entire project area. The archaeological site records at California State University, Fullerton were checked by (tors.) Constance Cameron (Attachment 2); the field reconnaissance was conducted by consultant. Both sioes of the roads in the project area were walked during the field reconnais- sance and areas free of ground cover were intensively examined. Some areas adjacent to the right of way where access was not prohibited were Examined quickly, in order to check for presence of absence of surface indicators for archaeological sites. ` . EXISTING CONDITIONS Several archaeological sites are located close to or within the boundaries of the project area. bone of these sites has ever been adequately investigated. Therefore, the boundaries of these sites are somewhat tentative; their B-3 � n l Ei 17 L i A '1' 1 �) ti -f 15 • J E?1 s r �cam''` i it i� •t:" Hog Island iI�r111N Itlit'tI)Altl,„,•j en.:•. ., s 1 � :_ pR � ,.`' ., '''ri ;f.. ... �'f1„IYY • : nw� Z 4 WidCY.il.�t��i 3a. '\'.r r••• I'i; �, Itz. }I lily=1 '+ �cic,ty�� ttw t ':�. � •''�5/'•• t ' �'`' '�' •�:is it '� •. •�,>\ ':;R, '' � � :is :• i...�,'f�.�r, �♦ ., , .. Sunset Bcac'h •' =1: •:I�' Of *. t .i..i + �� ' � itt•s w ll�tw is s�r t lay • 2a. '�1 1•v ,1� ,j 't ..,t 1.■ PROPOSM SEWER ^� GRAHAM Sracer i !:xlsruw 1 Houses ,•� I I R91DROcK ClRCLd' 1 � iCAN LAM. i f � I LeSLie 1-4mr �oatrvrtr SrRrar �` RcIIcN ( '' 1� •A.tCM+Ir4iO&IGOM. SITC5 (CKA-3I t,JALL I : JLW5INsl"lcr" K4P#kr;o 5cAL,r BOLSA C+IICA i .Jr Figure D-2a 8-5 40 s...'r...,w.«+.�-rw..�..r..........+..... ...«»�...�.. __.--.._-.....«....,�c.RR�:«i'-1•.'+c..y-.,n�•�.,�.,,—._. , - '.......�. .... _ «.!revwrr"•. r1 WARNER , n PUIOAR STREET i 1 f V d . cn II MEM 1►t3KGKQ MAr Ma To 5uu ; LOS PAra5 Figure B-2b _ _ �I CC p i ....-..+....sM.ww.a.+w.}�wnwr.+raq...rn^r�..te•.mf nw............._-.-.... _.._.-`•^+�.w✓�^.aV,vtva n+..�....+.....--.._...._.�..._ M ...... f •w.w+.ww+.ww.wn.n�rur.�w�s^IMalq/xlMr•.'� ICI- •• - .. III n I L 3 MARINA VIEW PLACE .� CoNsrRucrio�� I 1 I n $MDM LEE LANE _ t 1 � rJI rrNA6 OlL *GAS I Go«1PAwy v, f w° 4-np �wrxY - m ra f SIM5 1 I in n o j /NNAmeo SrREEr) r: AftFA f� i� � , RCJ►cM.� i.. I tDi{ossi4t� F�.pKr f• GREEN STytEE1' AUA5 imwrj" t: MAP NorTA SGAtc Figure B-Zc oo B-7 �Up �f I f ' l 1 1 i 1 characteristics have been determined intuitively, and the relationship between the sites will have to await a general synthesis of previously gathered areal data. Information about the sites is contained in several places other than in-site records in the clearinghouse. taut all references to these sites are cited here, but rather this report documents the references which deal with the sites .� collectively: 1. A cultural resources report and map for the City of Huntington Beach prepared by ARI 1973 (Ahlering, 1973 : 15-32, 68-93). in 2. An cvaec ation og .the Anehaeofogieat Reaou4eu on Botaa Chtw Meta (Cotreel and Rice, '975 : 20-23). 0 3. CaUuAa.L aid Seientti6 is Reaouhce Con3.ideAations (Carl berg, 1979, 1 Attachment 2). The follrn.:i„g archaeological sites are close to or actually impinge upon the proj Eict area: CA-Ora-83/86, -84, -85, -87, -288, -368, -555. The boundaries of these sites vary from source to source, but that is the natural consequence of incomplete information for the sites. The on-the-ground survey suggested that portions of at least 83/86 or 288, and 368 lie within the project area 3 and impacts to them would have to be mitigated. Some lithic material (debit- age) in Che vicinity or the intersection of Los Patos and Bolsa Chica suggested the human presence there in prehistoric times '(CA-Ora-83/86 or -288) and a stretch of midden lies along both sides of and perhaps under Warner Avenue in the vicinity of and just east of Leslie Lane. The apparantly undisturbed portion of this midden on the north side of Warner Avenue poses the only serious archaeological problem for this project. Specific site locations are not illustrated in this report because additional dissemination of this information may expose the sites to theft and vandalism. J B-8 A�P '.,.ss/1-.r'w...:..c•r:rr:3iC'i:e:7�....,:/...e .1.{a.�.y:.1 ...:....1.t,4...vl.:f• ......_..:6.w. ....vl . .�..�... ..-..-.....-..«.....-....-n.---........r.•..a.w wrrsneaR.aaal+wln..a+p�11C,7y,.a.... ^te . RECOMMENDATIONS In view of the archaeological sensitivity of the area, the project area should be placed under grading surveillance. A qualified professional archaeologist should be retained at client's expense to inspect any subsurface disturbance to a depth of 2 meters. It is customary to supply at least 24 hours notice to the archaeologist 1:o appear on-site, and the archaeologist should have the explicit authority on-site to divert or delay equipment if cultural materials come to light. If significant cultural resources appear during grading or clearing, work should cease in the area of the discovery until a mitigation plan has been developed and approved by the City of Huntington Beach Planning Department staff. The placement of the sewer on the north side of Warner is the less desirable .'j alternative, although a widening of Warner Avenue to conform to the full width to the east would likely also destroy this portion of the midden at CA-Ora-368. Therefore, if the widening of Warner Avenue in the project area is expected in .; the future, then it would probably make sense to mitigate impacts to CA-Ora- 368 portion now, before the midden sustains anymore damage. Regardless,• if � 7 economics dictate the placement J the sewer on the north side of Warner Avenue, then a Test Phase auger transect should be run along the right'of way to gather more information about the extent, depth and character of midden deposits, followed by mitigation of impacts (by preservation of data) by intruding some hand-excavated pits into the cultural deposits. ' 1 C5 0-9 CIT. •..A'., .:r.:Yli l•!•N..+u+u wr•.. rwy'w•MM�{`MIN•M..1•i,i1C Maa.7tR.�T•Y.wr�. 1, 1 'TTACHMENT l JACK L. 7.l00SER - ARNA1 ll.ONST t Jack L. 7ahniser's professional experience falls into three general categories: I. Teaching 2. Administration 3. Research fie has taught nearly all age levels, 6th grade to college and older n avoeational groups, although most of the teaching has been at the university undergraduate level. lie is currently teaching part-time at California State University, after a full-time, seven-year cur►rlitment there. In the late '60s and early '70s, he designed and operated educational field programs in both Arizona and New flexico and is familiar with the logistical problems of doing archaeology under these conditions, and in tlivse Ly-ographic areas. Other than administering the above programs, he has functioned as an administrator in two other organizational contexts. an Catalina Island, with a permit from the Wrigley family, he created and operated the Catalina laboratory for ArclsaHology, under whose aeois the first such fieldwork was done in more than a decade. And for the iast' four years, he served the Anthropology Dept. at C.S.U.F. as the Graduate Coordinator, an elective posi- tion second to Dept. Chair, with direct responsibility for more than 50 graduate students. tie also fnvndcd there, and advised, PAST (Public Anti- quities Salvage Team) which completed more than a hundred [IRS in the last five years. Although recently, purposefully contra.7t oriented for training purposes, his fieldwork has had various orientations and purposes, and it has been concentrated in Southern California and the Southwest. During the next year he intends to extend his experience with large projects in Central , coastal California (a survey of Camp Punter-iiunett, the Presidia of Monterey, and Fort Ord), and in Central 'Texas (fort Nnod). He is, however, by preference, a 5outhwesternist with first-hand familiarity in both the Anasazi and Hohokam areas. D ! 0-10 C-t-4 • _ ♦A.. . .1:.J/r1 �:l.•..v .. '.1 a .... .. .w... .. wl•� -•.-+-.r...w.ww.+-MYrwM ll<✓4�.�f�+.`.. •l l ATTACHMENT 2 Public Antiquities Salvage Team - PAST Contract kchleolegy Department of Anthropology CALIFORNIA STATE UNIVERSITY FULLERTON. CALIFORNIA 8204 1 1 (714) Oro-3977 P September 1979 M { Jack 7ahniser � ,. 2342 Meadow Valley Terrace Loa Angeles, California 000.19 At your request, a records search was made for archaeological. sites located within a one-mIle radius of Warner Avenue from the coast to Springdale in the City of Huntington Beach. Nine site3 have been recorded in this very sensitive: area: Ora-78, 8S (86), 84, 859 87, 2899 289, 368, and 55.5. I am enclosing. copies of the site records as well as a portion of the U.S.G.S. map delineating site locations. Ora-78 was tested by ARI and found to be vary shallow with very sparcv artifacts. 83 and 86 are thought to be a continuous midden and are usually referred to as Ora-83. Most of the other sites are severely disturbed or, as with 555, destroyrd.' `a If you have any further questions, please call. Sincerely, Constance Cameron Anthropology Museum (714) 773-3977 I J t t 1 t1 F I � I Appendix C INITIAL STUDY AND NONSIGNIFICANT EFFECTS i F ' Fri I j I 1 1 .i 'i f t� a 'f �i w-Ml I J� { F. J t,. - ..von..t.r....,_i... . .... ... ..._•-»—......►..._..,,.......... ... .. t 7 Appendix C INITIAL STUDY AND NONSIGNIFICANT EFFECTS This appendix contains an Initial Study prepared by the City of Huntington Beach Planning Department indicating effects which were considered insi:nif- t icant and, consequently, did not require discussion in the Environmental Impact Report. Also included is a discussion of possible significant effects which were found not to be significant. . 4 t. i 4 i0 t � i • 't. r C-2 �+rc.ti wT K.•)i.:.i.•sN..1:sL[1.►.ftSS7l1.1C'i.R}^:i1lt[rif.4..t::r.—..�.w.�..+•W.71'.a...., ...:Y.l0.:.I'C'OwIA.�.�. wv«r+►.w.•.«w�..+..+r....++.....�—«...+.--.-.—�.� , 1 V FNVIHQNMrNTAIa GNECYI.IST FORM I. Backpround I. tame of Proponent City of Huntington Beach ' 2. Address and Phone Number of Proponent 2000 Main Street: Huntington Beach, CA 92640 .3 01 3. bate of Checklist Sul:mission May 7, 1979 4. Agency Hequirinp. Chec�list City of Huntington Beach { S. Name of Proposal , if applicable Sewer Line •- Warner Bo1sa lj Chico Los Patos •! II. Environmental Impacts (Explanations of all "yes" and "maybe" answers are required on attached sheets.) { YES NAYfiE NO ! 1. Earth. Will the proposal result in. a. Unstable earth conditions or in changes in -eolneic substructures? x b. Disruptions, displacements, com- paction or overcovering of the soil? x c. Chanpe in topography or ground surface relief features? x i t d. The destruction, covering or ti+odi- d fication of any unique geologic or physical features? x e. Any increase in wind or water erosion of soils, either on or off the site? x f. Changes in deposition or erosion of beach Sands, or chances in siltation, deposition or erosion which may modify ` the channel of a river or stream or the bed of the ocean or any bay, inlet or 1 lake? x 1 •` 1 t C-3 I A'\•..1J'C.Mf!/a.Wue.e-Y.Nshaa«...wxr.`J Yit f.✓Mr.a l.CC.��...+�.,........., n w.�r•w....*..� ...�..-........•.,..i•• w,.•.•.�,wwRa./•laC.MMn• 1 ~_ YFS HAYIIE NO g. Exposer:: of people or property to ' geological hazards stich as earth- quakes, landslides, mudslides, ground failure, or similar hazards? X. Z. Air. Will the proposal result in: ' a. Substantial air emissions or tieteri•- oration of ambient air quality? x b. The creation of objectdonablir odors? x �t c. Alteration of air movement, moisture or temperature, or any change in climate, either locally or regionally? X 3. Water. Will the proposal result in: (a a. Clianges in currents, or the course of i direction of water movements, in either marine or fresh waters? X b. Chnnges in absorption rates, drainage � patterns, or the rate and amount of surface runoff? X c. Alterations to the course of flow of flood waters? X d. Change in the amount of surface water rt in any water body? X • r C. Discharge into surlioe haters or in any alteration of surface water quality, including bur not limited to temperature., dissolved oxygen or X turbidity? I' f. Alteration of Lhv direction or rate of [low of ground waters? X Change in the quantity of ground � r waters, either through diroct addi- Lions or withdrawals, or through interception of an aquifer by cuts or excavations? _ X h. :Substantial reduction in the amount of water otherwise available for public water supplies? X 0 i. Fxp06UrC of people or property to water related hazards such as flooding or tidal waves? X - C-4 ._^'-++r+a+.n4r,.ra._..e.n+•�tti:e.si.. ..,........,..,..-...• ...,...,-.__.. ..........., ......• .. ,.....,.... ..-- ....... _.-_.�,.. r......w.....,�------••..c...r...,.rw.�,n......•or..m�+isaw»i { YEs 14AYBE No 4. plant life. Will the proposal result in: i a. Change in the diversity of species, or number of any species of plants (including trees, shrubs, gross, crops, and aquatic plants)? X f b. Reduction of the mjrnbers of any junique, rare or endangered species of plants? X c. Introduction of new species of plants into art area, or in a barrier to the normal replenishment of :f existing species? d. Reduction in acreage of any agricultural crop? X 5. Animal Life. Will the proposal result in: a. Change in the diversity of species, or numbers of Any species of animals (birds, land animals including reptiles, fish And shellfish , benthic organisms, x or insects)? b. Reduction of the numbers of any unique, i X rare or endangered species of animals? c. Introduction of new species of ant— mats into an area, or result in a harries to the migration or movement X 4 of animals? d. hrterioration to existing fish or wildlife habitat? X 6. Noise. Will the proposal reeult in: a. Increases in existing noise levels? X b. E.xpotsure of people to severe noise levels? X ~7. Lihht And Clare. Will the proposal produce new light or glare? X 8. Lend Use. Will the proposal result in a substantial alteration of the present or planned land Use of an area? x C-S ..�«.+w•^.s�+.w.:.w .....w.....a •.•.\t..r.a.r:._•.r>. ...«,........-._....-_ ._.. . :1-(:..F.'s:1a•rr+.-,.-....-•-«r..».»«•ww.c tires•• -•.r•_-•�+ ...••.•w Mwwa.�+sr«�M'.141'f�v MCffttNGi1w YFS NAYFIF NO 9. Natural Resources. Will the proposal result in: a. increase in the rate of use of any natural resources? x b. Substantial depletion of any non- renewable natural resource? x '1 10. Risk of Ilpset. Doers the proposal involve a risk of an exploH ion or the relense of hazardous substances ( including, but not limited to, oil , pesticides, chemical or radiation) in the, event of an accident or upset cund it ions! _ x 11. Population. Will the proposal alter the. location, distribution, density, or g;rnwth rate of the human population of an nrea? x 12. Pou�g. Will the proposal affect existing housing, or create a demand for additional housing? x 13. Transportation/Circulation. Will the proposal result in: a. Generntion of substantial additional vehicular movement? _ X " b. Fffects on exiatin¢ parking; facilities, or demand for new parking;? x c. Substantial impact upon existing; transportation systems? x d. Alterations to present patterns or circulation or movement of people and/or poudc? x e. Alterations to waterborne, rail or r X air traffic? f. increase in traffic hazardous to motor vehicles , bicyclists or pedestrians? x 14. Public Services. Will the proposal have an effect upon, or result in a need for new or altered governmental cervices in any of the x following areas: t C-s a j Mat3: v. �..-..+.��.......�..rrw...r..i.+.w.,.�....._ �..-...+-.�wCt Ste::4.i�....»+..w• `-`r..-+....wa.r.r�..-.'..r ,.«w..w...Ar....-.'�.1Re..rv'...ry .U,r.•.'. •tpar..- 5 tt• • ; r7 YES MAYBE NO a. Fire protection? s b. Police protection? x c. Schools? x d. Parks or other recreational facilities? x e. Maintenance of public facilities , including roads? x ~ f. Other governmental services? x 15. Ener&X& Will the proposal result in: a. Use of substantial amounts of fuel or X energy? Ib. Substantial increase in demand upon existing sources of energy. or require the development of new sources of Senergy? x 16. Utilities. Will. the proposal result in a need for new nybtems, or substantial alterations to the following utilities: t i a. Power or natural gas? x b. Communications systems? x i 1 c. Water? x ( ) d. Sewer or septic tanks? x '. e. Storm water drainage? r " f. Solid waste and disposal? �{ 17. Human Health. Will the proposal result in: a. Creation of any health hazard or potential health hazard (excluding mental health)? x b. Exposure of people to potential ' health ltaxards? x 18. Avsthetics. Will the proposal renult in the - � obstruction of any scenic vista or view open to the public , or will the proposal result in the creation of an aesthetically offensive site open to public view? x i C-7 1 --... M Kra.:Ja=...v..L.•'.r•.r_�.-......�..........-.«�.+�r.`.... ..aw`M�..e..fylviaa/f�'f+14..�3 G••L•S.'r�'A�.j}�f•,1:MZ' 1 � 1 f 1 y V I• LL 1 . YES MAYBE NO 19. Recreation. Will the proposal result in an impact upon the quality or quantity of existing recreational opportunities? 20. Archeolorical/flirtoriczl. Hill Or proposal result in an alteration of a significant archeoloFicai or historical site, structure, object or building? 21. Mandatory Findings of Significance. n. foes the project have the potential to degrade the quality of the environment, substantinlly reduce the habitat of n fish ur wildlife species, cause a fish �► or wildlife population to drop below self-suataining levEls, threaten to eliminate a plant or animal community, reduce the number or restrict the range of a rare or endangered plant or animal or eliminate important 0 examples of the major periods of x California history or prehistory? b. Does the project have the potential to achieve rhort-term, .to the disadvantage :. of long-term, environmental goals? (A Q, short-term impact on the environment is . one which occurs in a relatively brief definitive period of time while long- term impacts Will endure well into the x future.) ` c. Does the project have impacts which are individually limited, but cumu- latively considerable? (A project may impact on two or more separate resources where the impact on each resource is relatively small , but k , t where the effect of the total of those impacts on the environment is �k x d. hoes the project have environmental effects which Will cause substantial adverse effects on human beings, either directly or indirectly? x !: 111. Discussion of Environmentnt Evaluation 1V. Determination ..rMMiy.Y4Yi.Owvwr.w.wrM•..�w.wrr..riA#.AlYaYu.4. "11..,A+.v.r..�.. +...... ....... ..... ♦t�.. - w..... �'`I•}' "41'.'...a.+a....�.....�....-.�r.�....+..+..++r............��.......—.- ...--.-+..+.r+w.rrw•w.nww.w.'�y.. 1 On the hasis of this initial 4rv.1lu3.tion: I find that the proposed project COULD VOT have n sipnificaut effect on the environment , and a NEGATIVE DECLARATION will he prepared. I find that although the proposed project could have a significant I effect on the environment , there will not he a Fip,nificant effect in t this case because the mitivati„n measures described on an attached sheet have been added to the project. A VFCATIVE DECLARATION will t be prepared. i I find the prrpored project MAY have a sipuificant effect ott the :y environment, and an ENVIRt►UMENTAL IMPACT REPORT is required. Ili 'y bate f �'Inatt.rc � �� ur �1v1 ••.n.n�-.4 f� Y�fw a.....�� f• � '' C., II (Note: thin is only a suf;Jtrsted form. Public agencies are free to devise j their own format for initial studies.) fyj ,I COMMENTS ON. t, 6.a. Increases in existing noise levels rs•sulting from construction will be short-term in: nature. Hours of construction will be regulated to avoid undue disturbance to the surrounding area. - ; 13.b, c, Transportation systems and onostreet parking will be temporarily and d disrupted during the construction phase. As the construction.will occur in stages, the total project site will not be disturbed at one time. Construction practices will be in accordance with the Work Area Traffic Handbook. Warning devices, signs, and barricades will be provided for public safety. ;. 0 i. ' t! ' t � h 1. C-9 ' i ..rrw•n.w s.:Js.n,a.y..P.wM1..w.u.......�...•r,.r.•..1.-...w...•-.r.....r....... .....�....,,.•i....i'w.'.f i..:•i.••N....�..._.... ........�r..�.....�.. 777'- .. { t lb. The topography or ground surface relief features may be temporarily Filtered through construction activity. le. Construction activity could temporarily increase erosion ,.� of the site and surrounding area. 4•. Ga. Construction activity may temporarily increase noise in the surrounding area. ' 11. The proposed project could potentially induce urban growth n by facilitating additional development in the area. There- fore, the project may alter the location, distribution, density, or growth rate of human population of the area. ' I 12. The proposed project could potentially induce urban growth by facilitating additional development in the area. There- �• r create a demand foradditional u fare, i.hc. project may rent o housing. 13b. Construction activity could temporarily disrupt on-street parking on Warner Avenue and Bolsa Chica Street. 13c. Construction activity could temporarily disrupt bus routes. 'I 13d. Construction activity could temporarily disrupt pedestrian and vehicular traffic flow. 14ar-f. The proposed project could potentially induce urban growth by facilitating additional development in the area. There- fore, the project could have an effect or result in the � .. ` need ;for new or altered governmental services. i 16d. The proposed project will result in substantial alterations to the existing sewage system. 0 20. The project area contains very significant. archaeologiral ;sI resources. The proposed project could potentially di:,I.iirb these resources. " 21b. The project has the potential to achieve short--term enviran- F' mental goals to the disadvantage of long-term environmental ' 0 goals by potentially inducing urban growth and xacil"itating } development in an area for which land u.se planning has not' been completed. Policies of the California Coastal Act discourage the extension of utilities determined r` to be growth, inducing into coastal areas prior to adoption-,-. :Sy of coastal elements. 21c. The direct impacts associated with construction of the sewer t line may not be considerable. However, if it is determined that the project could facilitate development on the Balsa Chica Mesa, impacts from the project could be considerable from a cumulative standpoint. ,`, U i C-10 - f:I U J The County of Oratkte) is presently processinci a request to amend the land uses olemont•. of the County Gene..-r;n', ;'_are which would redesiimat o :1 N. ` ayes of property and pot entiai iy provide for 1998 res kirnt i al units on the Bol sa Chica ,Mesa. The County Envi ronmont i 1 Management. Ac'lonvy ill ,its initial study of the proposed t?1'A i dent i f ie�d st,vc,ra l potential adverse environmental imparts. They County F.IR will assess the direct impacts of this project. The lack of sewer favi 1 i ties in the aroa is prrr:cntl.y a major obstacle: to population ofowth on the 11olsa Chica Mesa. Without concludinq whether growth is necessarily beneficial , detrimental , or of littler sionificanve.•, it should br deter- mined whether the proposed sewer project may encourage and/ or facilitate growth on the Polsa Chica mesa. �i �I el } 1; C-11 a i Appendix D i CORRESPONDENCE RECEIVED DURING COURSE OF STUDY 1 t i • t ' 1 , i •�-•rw�+r.�M,y1HW.IYi`wa•�uaww�+�r+r.n+vPwr a�ws+r4 •a..M..�+u,..��......-. :.�w.r��•M'.1�"L•.i1.::..y:Y.r.>_-.�. ..ww�..u.+++-+w�.r+'+�wrr+w.�......+.r>rr+rw+r�w. 77— r • t NiN GEnERAL TE!EPIAlOnE CORIPAny OF IMUFORnIA �QC Ati Esau;l Op!)(Awi y Employer d M) ILI '�'• •:. 1'+►.++�1• +fy) LUM M.AC11,CAL11+JHMIA 90801 .-t i l p !�y �19 i � . fit N Y ills 1 ! + October 41 1979 3770 E3.3 rti i I I j Chambers Consultants and Planners P.O. Box 356 Stanton, CA 90680 f1 Attention L. Brown Bryton Project Manager Reference 79-014/LBB:db Sewer Line .. fIuntington Beach, Your Letter Dated Sept. 12, 1979 Gentlemen a Your letter request we provide information that would assist in your preparation of an EIR for the reference sewer line project. Please be advised that without detailed sewer plans. it is im- I possible to determine if your project will necessitate. the re- location of our facilities. At present we have no substructures on Los Patos Avenue, but on Bolsa Chi.ca Street and Warner Avenue we have a major conduit system which includes numerous street crossings in the area of your project. If further information is required feel free to call me on (213) 435-9373. Sincerely ED SEMLING Outside Plant Construction Coordinator `I i� D-2 1 A Is,m al reticim Te'uphune R Elfrcilonics I.,..,,,,,,,,n::..•win+o+..c.,,o.-P.w.....,.+,...�r.:,.v.c.< .. t.ir+f ....,............1..._ ....._...-,.•r.r.;»=:ur,..........«...�- ._..._..................-.......,..._.......,.... ' ti COUNTY SANITATION DISTRICTS ar( f ARCA CODE 7'114 54D-2910 OF ORANGE COUNTY, CALIFORNIA 96z-.�a11 OCT 41979 i ' P. 0, 813X 8127, FOUNTAIN VALLEY, CALIFORNIA 927013 '10044 ELLM AVENUE (EUCLID OFF-RAMP. 5AN DIEGO FREEWAY) { October 2, 1979 Ms. Linda Brown Brayton ' Chambers Consultants and Planners Post Office Box 356 Stanton, CA 90680 Subject: Warner Avenue Relief Trunk Sewer f Phasc II, .Contract No. 11-11-1 This, is in response to your September 18, 1979, letter requesting informaticu ;�i on future sewer service for the Bolsa Chica Bluffs area, generally southerly of Los Patos Avenue. As:you may know, the Bolsa Chico area is presently not within the 'District boundary and not eligible for sewer service but the area is within Orange County Sanitation District No. 11 zone of influence. The District does not plan to provide sewage service to any portions of the Bolsa Chica wetlands •,;' until a coastal development plan for the area is approved and land developmonts are approved by all affected agencies. After developments have been approved the area-then must apply for annexation to the District for sewer service. After these actions have been completed, the Districts would provide service ;! to the area in the most cost-effective manner. A copy of the Coastal Development Permit No. A-253-78 and a resolution by the Districts Board of Directors excluding the area from receiving sewage service is attached. If you have any questions on the above, please do not hesitate to call. VQry truly ours, �� 'Tom M. Dawes ; Senior Engineer t.. TMD:mee Attachment t> cc: Hall and Foreman D-3 r. S,I u •-NMIiT.�{.H.,1��1r 1]:i. .. ..i t�+.. .. .....:Jy:.1l.t\.+i `,T.i\iM...r. .��.....�. .-�....�+w..JM: r..,:r1 e �+...a...�... ....�.�.��._... ._..�...... w�w+.w�wr ww+r.w—wweM..� . �___ _—.. --_ _ .. _ __ ' ' 1. -. • . ' • ' • .. .I ASSURANCES TO CALIFORNIA COASTAL COMMISSION • REGARDING ANNEXATION OF BOLSA CHICA WETLANDS A RESOLUTION OF TTIE BOARD OF DIRECTORS OF COUNTY SANITATIO14 DISTRICT NO. 11 CONCERNING THE ANNCX- ATION OF THE' I3OLSA CIIICR AREA AND THE COASTAL ELEMENT PLAN BEING DEVELOPED BY THE CALIFORNIA COASTAL COMMISSION i WHEREAS, District did cause to have prepared a Master Plan of } Trunk Sewer Facilities to meet the needs of the District for a 25 s i year planning period; and, WHEREAS, said Master Plan has been prepared in accordi1I1CC with the District's policies and in harmony with the Master Plan of local sewers prepared by the City of. Huntington Beach; and, WHEREAS, included in the District's Master Plan is a backbone trunk sewer designated as the Coast Highway Trunk, extending -from the Districts' Treatment Plant No. 2 located near the intersection of. nrookhurst Street and Pacific Coast Highway and the mouth of the Santa Ana River, thence aligned northerly and on the beach side of Pacific Coast Highway, through the downtown section of the ' City of Huntington- Beach around the Bolsa Chica area, terminating at Algonquin and Warner Avenue in the City of Huntington Beach; and WHEREAS, it is becoming increasingly important to commence .con- t' struction on said Co-tat highway Trunk because of potential interferences with construction activities presently under contract or anticipated to be awarded for treatment plant improvements; and, WHEREAS, County Sanitation Districts Nos. 1, 2, 31 5, 6, and 7, y.` in conjunction with Sanitation District No. 11, have approved various contracts and plans to implement a program to met ': the federal require- 0 ments for discharge of wastewaters to the marine environment; and, ,. D-4 O s ••.ww•s1:1 t.:ti:G:l::.4Rirr..f..• a+.... .+.+a.K...na lM......e:...a:n.... Ta,n; ..... �._....... .. ..+...••.v.z.�:[:,.• ..-... ......'r,: ::. •+grans tvma++en..n^�"'","w�+rs.r!4iIIlL'.T:4 � . WHEREAS, it is essential for the District to not alter their implementation: programs to meet the discharge requirements as presently contained or anticipated to be imposed through the National Pollutant Discharge Elemination System contained in the provisions of the Federal Water Quality Control Act; and, WHEREAS, the District did apply for a permit from the Regional n Coastal Commission for permission to construct said Coast Highway Trunk from Treatment Plant No. 2 to Lake Street; and, WHEIMAS, on June 26, 1970t the Regional Coastal Commission heard all testimony and approved the District' s permit application to construct said Coast Highway Trunk; and, �. WHEREAS, the action by the Regional Coastal Commission has been appealed to the California Coastal Commission by citizens and groups concerned about the effects from the sewer system and its relationship to any development which might be proposed in the Holsa Chica wetlands p area; and, WHEREAS, the District is obligated to provide the necessary trunk sewer facilities required for the development within the drainage . t area to the Pacific Coact Highway Trunk; and, WHEREAS, construction of said Coast Highway Trunk sewer must be done in sufficient time to avoid construction conflicts with the • Districts' ongoing construction programs to improve the quality of the Wastewater effluents being discharged to the marine environment; t . • and, WHEREAS, the Bolsa Chica wetlands are not presently within the Sanitation District and, therefore, cannot be provided sanitary sewer service until annexation is consummated; and, Ca . D-5 -•2- ^"'••.�f'1'�.1'La•;5.(�.t'.;.kft,..7s.ar.•r.r..........,.r......•..r «.. ,... _. ...... ...,..a..+....i::f.:..".:}�...cta•+•u._..-......__--................wwv,+.r++_�....•+a.cn.Ye.R.a 4�:S:?I,gtt3.sGItiY;+7'.1.'1•.141?•w ui.4•^+�� WHEREAS, Section 30254 of the Coastal Act provides that Special Districts shall not be expanded except where- provision of service would 'I.)e consistent with the Act; and, WHEREAS, Sections 30231 and 30233 of the Coastal Act provide ' for protection of coastal wetlands and it cannot be determined whether or not provision of sewer service to the Bolsa Chica wetlands area would be consistent with these provisions of the Act until the Local Coastal Plan (LCP) for the area has been completed and certified; ana, WHEREAS, Sections 30003 and 30200 of the Coastal Act encourages I public agencies to cooperate fully in the formation of programs that are consistent with the Act. NOW, THEREFORE: The Board of Directors of County Sanitation District No. 11 of Orange County, California p DOES HEREBY RESOLVE: Not to consider annexation of the Polsa Chica' wetlands area, which is presently outside the District'-. boundaries and is shown Ck on Exhibit A, attached hereto, until the certification of the Local ;1 Coastal Plan (LCP) for this area, or until July, 19U. 'After the ;I certification of the Local Coastal Plan (LCP) or after July, 1931, any proposed annexation will be considered in terms of the merits of the annexation under existing laws, and 'in terms of consistency , with relevant lana use plans. :'hi:, consideration is made in good• faith and the California Coastal Commission will consider favorably I the District's application for a perpit to construct the Coast 0•-6 F' -3- t t r...t.'..J'..rl..r fw.•.....r...._..__. ...... �.r• ...M1.• v.rw.r.�.1+Mw.4}w.ViR{.IMptFA1CM}J . w'i'MV4}x'M11a' a i r Highway Trunk from Treatment Plant No. 2 to Lake Street in the City of Huntington Beach, in order not to interfer or delay the Districts' implementation of treatment facilities. . PASSED AND ADOPTED at a Special Meeting held November. 6, 1970. I l G� 1 . (( Cs J D"7 i { +.-wnrr An...rJrwr.wt.ti...lYiraix^!t:qua.nv'wa.'Vr,.irr.................,.....r...,a-.ti:::l..AJIi,, .•.......«n...,.........«.�.--+.....,x•.Y,......-�....+.......--.-.�....w..wrr+.rt+w e•.1r•Rad:lusRa�tRfw• t, � ' }` ` �� :; :ti+7t iLgix} tjan ,L° c�iwk •L��a. Fi.i��lLIMP—' , STATU OF CALI F0PM A SS. g COUhTY OF ORANGE ) I, J. h'AYNG SYl.VFST'LR, Secretary of the Board of Directors of County Sanitation District No. 11 of Orange County, California, do hereby certify • I ' that the above and foregoing Resolution No. 78-181-11 Has regularly passed and adopted at a special meeting of.said Board on the Gth day of November, 1978, '! by the following vote, to wit: j l.. AYES: Ron Shenkman (Chairman) and Ron Fattinson 4' t ' NOES. Nona ABSENT: Laurance Schmit r IN WITNESS WHEREOF, I have hereunto set my hand and affixed the official seal of County Sanitation District No. 11 of Orange County, California, this Gth day of November •, ,1978 1•,by 1v A - Secretary, and f Dir tors of County ani tion 'strict No.11 of tinge County, California 4 5-103 ° LIA ..+•.wcarvG.J: Nw':t::.'ic.•:r••.+.««•.�..r«... .,..v..... �...•...�.........._... .--..�...w. a,_.Yf,.�'i ... `ar: .�....... ._._...�- - ....�._...».".. . ..w+.r awnnry .t 4 •.nLts uliwA WASTAL COMMISSIOt`• '� '� IL•'I L d ` • 53 iwird Stf Ldt,San Frand=' 94105—1415) 5a 3555 00 A S T A L D S V E L 0 P M E N T H E R M I T pn November 15, 1978 , by a vote of 9 to 0 the California f� Coastal Cotmninuion granted to Oranr�unty Sanitation District Mo. 11 Permit A•- 253 7g s subject to the condi,t'ons set forth below, for development consisting of construction of nnnroximatel.v three miles of newer interceptor i n � 1 mo:a specifically described in the application file in the Co=ti.ssior. offices. !� The development is within the coastal zone in County at alori . thn sentlnrd side tar Pacific Cons:t'lliebwav from Lake Street to BranUtirst Street, I porthensterltin Sroo;diurst Street .- and alonr• Not-A.rond StreoL, Ci y of Htuttincton ticaich. kfter publz.c hsarir,C held on pct.ahcr 16, 197 , the Commission found that, as conditioned, the proposed development in in conformity %tith the provisions or Chapter 3 of the California Coastal Act of 1976; will not prejudice the ability of the local governnent having jurisdiction over the area to prepare. a Local Coastal Program that is in conformity 1r•ith the provisions of Chapter 3 of the California Coastal Act of 1976; ,f. between the sera and the public road nearest the sea, is in conformity with the public access and public recreation policies of Chapter 3 or the California Coasrtal Act of 1976, and either (1) will not have any-sil;L fi.cant adverse ( � i.mpact on the environments or (2) there are no feasible alternatives or feasible mitigation measures available that would substantially lessen any significant- adverse impact that the dcvelcmment, as approved may have on the environment. Issued on behalf of the California Coastal Con.miss n an T; ;' ,•_, •Q� ,,,,,. ` .. 1fI i I•.LSvrir�t "� Executive Director The undernigned permittee acknowledges receipt of the Californ.;.a Coa:,ta.. Commission, Permit A- 253-7d , and fully understands its contents, including all conditions impoued. D c �-.� �E:rrtu� co • 0-9 .....h.•..•R'atv.,aiy..w...•,......r.+....'..•.�.......+♦.....I.,..•..,................. ..... .a • ... •.. ..v. ♦ .. .. -. ....r....w.—.-♦.w.............�....-_....r...r.. i+.Y¢+..w' ` Y 1 • f i {X.�"� � • i � t� v h' {?� � 9.• �i i ,t •"•" n � 't�'��re1TV S�St,�r`1 .,w 'j.',.+ff',«� " �?.� t- { 4' 1' � �. —2— permit A-- 253-78 , is subject to the follofiing conditiona: A. Standard Conditions, 1. Assirnment of Perud.t. This permit may not be assifncd to another person except au provided in the: California AtEui.ril.:.•trative Code, Title 14, Section 13170. 2. Notice of. Receirrli and Ac1mo%,rlcr4.-n-ent.. Construction authorized by this permit shall riot carmcn a un"I a copy of this permit,. signed by the permittee or uuthorizcd aGent, acknowledging receipt of the permit and acceptance of its contents, ., io returned to the Co=dsnion. - 3. F=iratinn. If construction has not co=enced, this petidt, frill. expire tiro (2) years frc:u the date an cw:hi.ch the Ccm:aission voted on the application. Apali-- .cation for extennion of this permit swat be made rp Or to the "Pixat:ion date. 11 4- Construction. All construction roust occur in accord with the proposal as cot forth in t cation for permit, 4-di3ect to wW special conditions set forth belott. Any deviations from the approved plans mast be reviewed by the Cotr.7dssion 1 pursuant to California Administrative Code, Title 14, Sections 13164-•13168. it Interpretation. Interpretation or revisions of the terms or conditiazts of this perryt must be reviewed by the State Coa.ta1•Co:,ad3ai.on or its l xecutive Director. All. quotations reGardinr, tits pen-It should be addn:csed to the State Comnissfon office in San Fr=icLsco unless a condition e.cpresuly authorizes rcviccr by the Regional Cor ti.ssion or its staff. B. Snauial Condit 1. Service Area. The service area for the pmponhd'interceptor shall. not in- clude the Boo as Chica wetlands, shown generally on Fo:hibit k, and the applicant shaIl neith' r �unrantee nor provide service to any development wi.tlwi that: area prior. to certification of the Local Coastal. Program for the area. Further, the applicant shall not cause the lands in question to be "assessed for bt:nefi-t" from the approved pmjcet. Prior to initiation of construction, the applicant shall submit a District ! Board resolution, in a form approved in writing by the Executive Director of the Com— mission, assuring; that the lands ir_ question will not be considered for annexation of the district prior to July, 1981, except as consistent with a certified Local Coastal Program. 2. Constrsrcti.on Imnacts. The approved project shall be constructed in phatietr, and that portion or the project along the sand dunes on the seavrord side of Pacific i Coast Highway in Huntington State Beach shall be tinned to minimize construction impacts in the area. klrery effort shall be made to coordinate construction timing with the r prcposed redevelopment of Huntington State Beach by the lkpartment of Parks and Rccrea* tion under a valid coastal permit. If no pe+�nit for redevelopment has been obtained by the Department of Parks and Recreation by September, 1979, construction may proceed, and the applicant shril-1 restore the dune area in Itunt?.ngton State Park. Restoration shall include recontouring of the dune formations and replanting with appropriate dune vegetation wider a landscape plan approved by the Executive Director. J - - 3. Rnel:un.�t:ion Study. Within 60 clays of approval of the nennib application, the applicant sh.0.1 submit a reclamation sLudy worlc program to the Executive Director for approval. Tho reclamation study in intended to analyze the feasibility of util:l.^ing D-10 ' � Paxmit A-2 3--'8 • ' " Yeclaimed *rater to enhance and restore aL', or portions of the Box,a [pica wetlands. The work program shall be developed to accomplish this study and shall include, but not be limited to, analysis of costs to extend distribution lines from Treatment Plant No. 2t both with and without the "Green Acres" project; the hydraulic profile of the area to determine discharge points; institutional constraints.suciias the requirements • of the State Department of Health; alternative fVnding sources; vegetation surveys; and soil borings to determine rates of percolation. The study shall be performed in cooperation frith the California Department of Fish and Game and the U.S. Fish and r, -Wildlife Service and shall be completed in draft form prior to September, 1979. • A i f i I • ' 1 1'. I• fl E _ _ D-11 _ "—•..•.F rxa rN sai:uer•:•a.:Ki::.ts f....sw•a,a..:u.•.,r....•...+ ......... ,..�..._.._. ..,r r .,-u• t it . , . •, F Cif ofHuntington Beach P. 0. BOX 1911 CALIFORNIA 9264H • TEUNIONE (71.3) 536.5281 � I►F:P 1(iTifl•Y'I'I►F'II'IItIN)ItF.Iii:.�Clll:�.H(:I:RI:1'1'(llY 'lNU I'1lCF� cl�l:f:�r r.�ltutllnul��E:.nnitl-rl►lt " 1 4� i September 27, 1979 Mr. L. Brown Brayton, P.M. Chambers Consultants and Planners r` P.O. Box 356, 10557 Reach Blvd. Stanton, California 90680 Dear Mr. Brayton: Your letter concerninq the forthcoming E.I.R. you have been charged with producing was referred to me for analysis of our park needs. 1 have identified in yellow the park sites the city owns and as You can see, they are of considerable distance (at least 1/4 mile) from the nearest point of the proposed new sewer; however, the service area points to the Huntington Harbour and includes some of Sunset Heights and several city-park facilities are within the service area. I have circled the facilities which currently have toilet facilities and marked with an X those which will tinve need of a sewer connection in the future. t�5 If there are any further questions, please contact me at 536-5498 or at the above civic center address. f•: I. ' Sincerely, Vincent G. Moorhouse, Director Harbors, Beaches, Recreation and Parks !; By: ��`�f 1� tt' 40 ITl tYart y, Superi endent Recreation and Park evelopment VGM:NW:cw t• n-12 Addrem all rommunicalionr to the Director,llarburw.Beaches.Rerrra6un and FAAS Urpartment t •-,...:Ar,raa,:C.:.c.t a:.....utv,�..,...• ., ,.t••_....e. , ........ ... ..... .......ee-•1, ._. ., .,....,-......_..._.._ ......-.+.-...... _ ,..._..�.�........ ...«......•,.....«.....• _ue •� � ; :�: � .•.i l ; • ,�j „t f � ��. r'. ' .� i�la-- �'it;� I 2 (1 r.+ t1t 1 ++� f•f3t1—.—� +. i`-=L '.'1 .ir .ia.rs r• �M �t"" 1 I r V y •_•t ``, is,,� 1 �!'! (`v i LL :tl, t� =�� ! .,.. t7 i . i _a. I t'��:i�• �'^:it1 1111 \ � 1 n y•vW ►`•:.wf I �1�� i I K. 1 •, •� • 1� `� i� u.fw A ••fa i '" •�•�..J �-�j rw. I _ • it � - { •, "••' �_ �1-� t �i,,�I � .. .. . - -f fL:' .f: 1: _r: t..-i- �{�..-� i ...r - � 1 l:_:t:__! � a s S.\. 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'v ,-1 ��i•E •r � '��...5 ;;-:\�' 1 : •\':i: ': (��::•:. a' 4`` � , ,: ..; a: i�i, ••��•, C ixti,_r'• ._ , y ':�=.•Z�y� •�•; '1�9�� 1,'•�'�:�)�. :r1; •r.,•,;s V•„w.•a•�t , -`' •~•,- Q i r �i•� -it •t...�.•r • 'T „�� S -..•• .a t `� •�_��•`� 1 r; r;•t • •t .yam rl�t_ Via.- y; t � t�i..v.r•.•..v.:� „n• �s�•7•'t t• ;•a± a ••. t 1�`• •••ate`�\`•� �•t R ,�' •` �.� � \ f .a' f.e� fs,�_l �• Is• � •wt _�_.�..5 �� ! C •t . �r•� 1 .� t• ' .lT!►+2. %�V • a•�„ .�J I : .�• ►� .I St'lr ' l" t .. :-S ^ Ci ='r•...r S'�..f w ' _ r � f •. •z. t • •t• � J- cn y if. \ •a• t.1•w•� .r -- • t•I/•�` f11► �_ � _.y i i ; � •�,!'t_,{� `1 `L rf q� t��; ✓.fir-�• , t •-.� 1 , t •_� IJ :� .. `/ :..J's __. L la !•'• - � = f-.,'t•V •1`.�;.�``' t•►1 L�-t'� � �t � •,�;'•.. i t J fa.. 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' ♦+• - - - - -Ali _ 1 SFA1E OF CAOFORNIA—RESOURCES AGENCY EDMUND G. 91OWN IR• Goisf"m CALIFORNIA REGIONAL WATER QUALITY CONTROL BCAW-- •w•• SAN1A ANA REGION RECEIVEO 61109 INDIANA AVENUE, SUITE 230 RIVEP.SIQE, CALIFORNIA 92306 PHONEt 17141 1584-9330 I September 21, 1979 Ms. L. Grown Brayton Chambers Consultant. and Planners P. 0. Box 356 ? Stanton, CA S0680 Dear Ms. Brayton: t Relief 'trunk Sewer Line: City of Huntington Beach You have requested our comments regarding this proposed sewer project to assist in the preparation of an EIR. t Our initiai' conments ard concerns are as follows: The construction practices to be used should be carefully reviel•,ad to assure that erosion and siltation does not damage the nearby surface water resourc(.:!,, - If dewatering is necessary, it must be done in ! a manner which does not adversely impact water quality. An NPDES permit (issued by this Board) may be necessary. Any other impacts on Bolsa Chica, Huntington Harbour, or other water resources resulting from :• construction or operation of this sewer must be addressed. Thank you for the opportunity to offer these comments. If you have any questions, please feel free to contact , this office. Sincerely, Gordon K. Anderson Environmental Specialist GKA:pk D-14 J «w..etb .r.t;�Y'::'x:: r.....f.Tra........,.•r...•s•n....:). ..........�......_-.._,.._ ... •.,a.ti,:,.�-....._.,, �..........,.. .�^•,......«.....,..........• .u,e.r.u.. .+•..aa+u!.c.,!I,wvnr•ar • b • I. • RECEI VEO September 14, 1979 -IN QUEST OF EXCELLENCE" i t Chambers Consultants and Planners P. 0. Box 356 10557 Beach Blvd. jt Stanton, CA 90680 RE: 79-014 Gentlemen Enclosed are copies of our student transporation bus routes that may be affected by this proposed project. Students in the Kindergarten though third grades are picked up and re- ` turned to she streets underlined in the enclosures. Yours truly to R. Berg Virector of Busine Vsupport Services tk enc , j 1 I . 1 •. '..• Dale Cangan Julio'Jar"Rivera.President Darrell C,Carter. ClerA - James Carrell Merisrina R.b.'anA 1972 MV RNER AVENUE Dan Hendtieks Cherlr►s Ostedund 11U11T/1LQrON6EACH. CAIIFORNlIl92a4T a_15 .lames Junes.Jr. hlargaret'•Magpie'Stork T1�la�T-?551 l►lontc McMurray /w an A.t..W a,..Iwr l...a.w r/.,71.a/,•111�.'A IM111�\(1 M,r1 N.•.v1.IW rA1.I/./J,.• 1/.'IyA+/ •,I I.A.M/q I/I ; 1 j '•aNa+..saL t,s:ii'.0..pa y.ew .r .-,-..•...r ...h+rw'a......w..r.....r.,.... ..............r... ..3•..:L1..•...rf 11>Y 'I•r....,......— a.a.•..Ilt-.'111..•..w.nfw+r..l1•M�.IT{.awwM�I.tY\NNI�t . 'A . .. .1e • 1. w BEST PHOTOGRAPHIC REPRODUCTION POSSIBLE, DUE 'ro ACHE AND CONDITION OF ORICTRiAL 4 D OCLINMNTS it 'g ;•`^y S'� ". �� .'��" q't ' .�� t �,'+J' 4r+l r. * 11 � .; i,'i . OF PF 000 .. 1r.A+fa:r++•� *' �+.1 ram. .•�„�,rv+.»Tr—v•..�*+.•,.... _,f>.'n J.K'�'r.�. bC.�1f�.^+t'{'?�rrl::...•:�,..�:,.'.:.,j.•. %/+.ICv:!.... Y,....�:a�. t+7t:1+4'�•fi�e'-',..i�~�Tl►^^'4��m"y"•fu h"t �•r`.y(4.,;.:k,ri�. 1Ai.-�\S.ti.��.t t.. ,.1��;�,``'+•:��;,�».:fie 4' lR, w . '. ",rT � � •'�.,�wl r' •.1 \ram •�• • • � • w • • • •. . •�1 •v ` • ��7(,• 1 � .. R1. ' L'••1 l.R . , . h . + e '.1 ,.' w:. �4 iZ�, t. i .1.: � i l:`J ,� � , ry .. .. - w . `II � t. i w _ r .. ' ' � .. .. �� ,� ... .1 .. .. ... 1'.. •. 4�1 dU ��'. '� � w ... �« . . ... it �. . . .; ;,� Q-1� r � '.,j' + .� J +�, --"-+.,w+..aww.ana+nrs-n.R...w...._.�....._...—«-..�...«........-....... ... ..._._.....wuw�ww:':.,-w....,,.�....--�_..... ...........�.._..r._......_._... ......--.... .....� swLMln+aaen+n ' 0 , / ;S.. ' � �� i: ,.�` . % . ''. .. � , Y � .. 1: R � � .. t ^1 EFFEl: 17F Cllt, to Sprin.-,(�?e /1 . 1.0—t on Spr►rledil t% Rc.Jt on, to Left an Apei, Lefton Lc.av s�hoa i 1.55 Lest on 1'11bary, Left on ;`r•ans .� Right on DiEn_tOncs Rin;,t on Graam Gr,-tir�f t�arth to 11�tttLr u iurrt at and c.f 5t-'naf. r ' g:l t an :il:yl cr rut lt.• cast- LQ e::'r:t:i 1,M► ?-.t cin Lell on Ite►1 D-17 J1 s . r'i;'�:t cn . �,It r _ V Tun; - IL t�YJ :.T a S,i 1 • • 1 1. � 1 I AN 0 E tll�li;,,11• • ; .. ,11. rrt 1 ENVIRONMENTAL MANAGEMENT AGENCY TELFPNONC: 11/•/141 ADVANCE PLANNING DIVISION AREA CODE 714 III H011H ASOADWAT uutlllo SUPOtSS SANTA ANA, CALIFORNIA P.O. BOX 4106 SANTA ANA, CALIFORNIA 12701 .June 27, 1979 H. G.OSDORNE DIPLCTOP TILE RIC"ARD G.NUNSELL A4'.'SJANT DIRECTON A114ANCF PLANNi►16 Gity of Funtinrttolt 110:Ich Uepnrtnent of Plstnnlnr .aml T:nvirotmental Renources I P.n. 11nx 190 Iluntin;;ton LSt•ach, California 9»648 r attention: 1:r. James Immes 4 Gentlemen: Ile Itttvtl reviewed the Votice of Preparation for the prot+olmred c.otintructfon of a trunk s;et,rr in Los Pntos Av:.nue from 1larina View Place to Ilolsn Chicn Street and ltnve the follovinr co mentst to relate: l.a.r,. 'file. I:I1; should also address the potential impacts of placing a trunk sower perpP.tulicul.ar to and directly acrons tttc :`elport-Inglewond Fault, which could ens;fly he ruptured in a quitl:e. 3.p,.It. An enrthqunt:e in this .aren could easily rupturtt the sewer line. and result in n high level of rroundianter pollution in the usable aquifer underlying the .area (the fault traces act as n proundtinter llarrier, heepinl; out intruding snline .and brackish miters and pre- serving the quality of the aquifer). Please tliscustt. t1 11. Grawth-inducing impacts in tennis of service nvallnl4lity will he uspecially significant it: .any exceus capacity remains nvnilnl-le to ' nerve potential future development on the 1.olsa Chica *Icnn (snutlt i of the currently proposed :str-vice area). This project, Simply by Its consideration, any have nlrent!y indirectly induced the current proposal for ,-rot:tlt in this environnentally very sensitive arra. ' 13.c. Pleasealso address any potential impacts on the irhplent'ntatio11 . of the County's IIPAII in develnping an entended Rnlsn Cltic.a.Street `,!} as a najor arterial in the area of the proposer[ project. D-19 1..».�rw..+rww,..r..w�........._............._++..............+•.......... ..�...w ../:..w.+.,_•L... .vn � .wr..........._rr�...r....._..... _ _....—w..r�._,+.�.-..•.+.+.+�.ww...s.<w.i,wn►.!+'.. I , . n 17.a. t:nptnres of liar sc -urr lint, in the evrnt of ally s:il;niflcmit rlrtal'r• cat the iletrport Tnl-l►mind i'a►tlt could produce a potential public Itcalth nelince. i'lcra.e discuss:. 20. Please dircurs any potential inpacts on nrcltaroloricA liter. extending Into County territncy. Trani: you for the opportunity to rrvir,t+ this: docunrnt. "r gill look fort,:,rd to receiving n capy of the draft 1:11! ahrn It I►eco► -r. avnilal►le for r'1 public dis:trihutinn. Very truly ymirs, .� Kroneth 1'. r-lith. I.nvirrnairntnl !:rrvlcrst Division i:i15/ph j. jj 43 I; { s� i wwM�� 'I G-20 ' yy,ywlMa.•M,.a..T•w .•+.�a�a.w+.w.r�.w,a++a �—..., .. ..-...-..�a'.YYr,1K.l:♦ -J...r......r.�....... ..-....-.......++.....-.-.....«...w•...-...-..� vwYyVM'f6�+ww'�� (SOUTHERN CALIFORNIA ga' ^t7MPANY ORANGE COUNTY DIVISION • P O. BOX M. ANAHEIM. CWF. M2 3 • t October TP, 1979 i n rhambers consultants & Planners P. 0. pox 35ti ,.� 10557 lteach Dlvd. Stanton, (!n. 90hP0 Attn: r.. '4rovn Brayton, Project Manager ^uba ect: 79-n1h/I,pn:eb ^� Gentlemen: Vie have chocked on the location of the proposed sever line in Taos Patos Avenue from Marina View Place to %Isa rhica Street, in Rolsa rhica Street from Los Paton Avenue to Varner Avenue, and in Varner Avenue from polsa nica Street to •approximately PG0 feet west of Graham Street in Ituntington peach, and find from the information provided that we anticipate no alterations Will be necessary. If you have any further questions, please contact r7aine StarK at (71b) 61)4-311P. t Sincerely, J. n. Allen "Iechnical Supervisor rS/ld Attach. O 0-21 O `+1:E+*.-._.,.,J'a� a...-+...+...w......-...............�....,.....- _. .. .. -" ._.. ,.... ,.. ....: .. , ,,.r .................. a............«...... ........—....�.«.-�----•-r.�•.+..wr. 7 7 1 f I