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Home My WebLink AboutOCSD 00-11RESOLUTION NO.OCSD 00-11 MAKING CERTAIN FINDINGSRELATING TO LESS THAN SIGNIFICANT ENVIRONMENTAL EFFECTS IDENTIFIED IN THE MITIGATED NEGATIVE DECLARATION FOR THE REPLACEMENT OF THE BACK BAY TRUNK SEWER PROJECT: APPROVING MITIGATION MEASURES:ADOPTING THE FINAL MITIGATED NEGATIVE DECLARATION FOR THE REPLACEMENT OF THE BACK BAY TRUNK SEWER PROJECT: AUTHORIZING THE FILING OF A NOTICE OF DETERMINATION RE SAID PROJECT:AND ADOPTING A MITIGATION MONITORING AND REPORTING PROGRAM A RESOLUTION OF THE BOARD OF DIRECTORS OF ORANGE COUNTY SANITATION DISTRICT MAKING CERTAIN FINDINGS RELATING TO LESS THAN SIGNIFICANT ENVIRONMENTAL EFFECTS IDENTIFIED IN THE MITIGATED NEGATIVE DECLARATION FOR THE REPLACEMENT OF THE BACK BAY TRUNK SEWER PROJECT;APPROVING MITIGATION MEASURES;ADOPTING THE FINAL MITIGATED NEGATIVE DECLARATION FOR THE REPLACEMENT OF THE BACK BAY TRUNK SEWER PROJECT;AUTHORIZING THE FILING OF A NOTICE OF DETERMINATION RE SAID PROJECT;AND ADOPTING A MITIGATION MONITORING AND REPORTING PROGRAM WHEREAS,the Board of Directors of Orange County Sanitation District (‘tDistrict”)is presently considering the adoption of a Mitigated Negative Declaration for the Replacement of the Back Bay Trunk Sewer Project;and WHEREAS,District is the Lead Agency for the preparation and consideration of environmental documents for a Mitigated Negative Declaration for the Project,which is consistent with the 1999 Strategic Plan Program Environmental Impact Report,pursuant to the California Environmental Quality Act of 1970,as amended (“CEQA”),the State of California CEQA Guidelines, and District’s CEQA procedures;and, WHEREAS,to assess the Replacement of the Back Bay Trunk Sewer Project environmental impacts objectively,District prepared an Initial Study to assess the significant environmental impacts,mitigation measures,and alternatives associated with the Replacement of the Back Bay Trunk Sewer Project;and, WS&S —BRH:pj:05/1 5/00:#1 20762 1 WHEREAS,the Initial Study resulted in a determination that there were less than significant impacts associated with the proposed project if certain mitigation measures were implemented,therefore a Mitigated Negative Declaration was prepared;and, WHEREAS,District has consulted with other public agencies and the general public,giving them an opportunity to comment on the Initial Study and Mitigated Negative Declaration,as required by CEQA;and, WHEREAS,District has objectively evaluated,received,and filed comments from public agencies and persons who reviewed the Initial Study and Mitigated Negative Declaration;and, WHEREAS,the comments and recommendations received on the Initial Study and Mitigated Negative Declaration,either in full or in summary,together with the District’s responses to significant environmental concerns raised in the review,have been included in the Final Mitigated Negative Declaration;and, WHEREAS,said Final Mitigated Negative Declaration has been presented to the members of the District’s Board of Directors for review and consideration prior to the final approval of,and commitment to,the Final Mitigated Negative Declaration for the Replacement of the Back Bay Trunk Sewer Project;and, WHEREAS,District has prepared a Mitigation Monitoring and Reporting Program,designed to ensure that the approved mitigation measures are implemented during project construction and operation. NOW,THEREFORE,the Board of Directors of Orange County Sanitation District, DOES HEREBY RESOLVE,DETERMINE,FIND,AND ORDER: Section 1 That changes or alterations have been required in,or incorporated into,the proposed project,before the proposed Negative Declaration and Initial Study were released for public review,which avoid or mitigate significant environmental effects to a point where clearly no significant effect on the environment would occur,all identified in the Final Mitigated Negative Declaration. Section 2 That there is no substantial evidence that the project will have a significant impact on the environment. Section 3 That the Mitigated Negative Declaration reflects District’s independent judgment and analysis. WS&S —BRH:pj:05/15/OO:#1 20762 2 Section 4 The documents and other materials that constitute the record of proceedings upon which the District’s decision is based are located at the Orange County Sanitation Distriôt,1 0844 Ellis Avenue,Fountain Valley, California,92708.The Custodian of these documents and other materials is Mark Tomko,Project Manager. Section 5 That the proposed project alternative consists of the rehabilitation of a section of pipeline in Big Canyon (by use of a cured-in-place liner)and two new parallel pipelines in Back Bay Drive.The proposed alternative will create a number of potentially significant environmental effects that have been identified in the Initial Study and were taken into account in selecting the best alternative for achieving pràject objectives with minimal environmental impacts. Section 6 Potentially significant impacts identified in the Initial Study and Final Mitigated Negative Declaration that will be mitigated to less-than- significant levels by District are as follows: A.That construction in environmentally sensitive areas will take place between August 1,2000 and February 15,2001,to avoid the nesting season of certain birds,including the Least Bell’s Vireo and California Light- Footed Clapper Rail. B.That the existing pipeline in Big Canyon will be rehabilitated in place by use of a liner,rather than replacing the pipeline to avoid disturbing sensitive habitat. C.That sewage spills will be avoided during construction by implementation of a Spill Prevention Plan.The Plan will include use of temporary by-pass pipelines,elevated risers,and stand-by emergency equipment,including a tank truck and pumps. 0.That a Traffic Control Plan will be developed and included as part of the District’s Standard Plans and Specifications.Emergency vehicle access will be provided via a locked gate accessible to all emergency service agencies.Automobile,bicycle,and pedestrian access to the area will be temporarily prohibited to protect public safety and facilitate a more rapid completion of the project via fencing and detour signs. E.Temporary loss of use of a bicycle trail along the Back Bay Drive during construction will be mitigated by relocating the bicycle trail during construction on alternate routes. F.Temporary visual impacts during pipeline construction will be mitigated by minimizing construction time and post-construction restoration. WS&S—BRftp;:05/15/OO:#1 20762 3 G.Temporary construction noise will be mitigated by limiting construction hours and informing the neighbors of construction activities. H.Air emissions from equipment and vehicles will be mitigated by continued compliance with South Coast Air Quality Management District requirements. I.Disruption of roadways and bikeways during construction will be mitigated through preparation of traffic control plans that maintain maximum safe traffic access. J.Disruption of utility service during excavation activities will be mitigated by coordinating with the Underground Service Alert and local utilities, developing plans for alternative services where needed,and re-routing of facilities where necessary and at District’s expense if a utility purveyor has prior rights. K.Increased emergency response times during project construction will be mitigated by preparing traffic control plans prior to construction and by notifying emergency services before construction schedules are implemented. L.Any disturbance of drainage facilities during project construction and groundwater infiltration into open trenches and tunnels,will be mitigated by scheduling sewer construction during dry months,coordinating with the City of Newport Beach to protect underground facilities,and discharging groundwater pursuant to the sewer collection system rather than surface waters as allowed by District’s NPDES Permit. M.Disturbance of cultural or paleontological resources during construction will be mitigated by halting work if unusual materials are found,and then consulting qualified professionals to examine the materials,record findings, and properly curate any significant artifacts discovered. N.Dust generation and air pollutant emissions from construction vehicles will be mitigated by using watering trucks,as necessary,to control dust and keep streets free of dust and dirt,covering trucks and dirt piles, using properly maintained construction equipment,and discontinuing construction during first and second stage smog alerts to the extent feasible. Section 7 That the Board of Directors adopts the Final Mitigated Negative Declaration. Section 8 That the Board of Directors adopts the Mitigation Monitoring and Reporting Program. WS&S—BRH:pj:05/15/OO:#1 20762 4 1’ Section 9 That the Board Secretary is authorized and directed to file the Notice of Determination and any other documents in accordance with the requirements of CEQA and the District’s CEQA procedures. PASSED AND ADOPTED at a regular meeting held May 24,2000. ~ ATT~T:. . Board Secr~tary WS&S —BRH:pj:0511 5/OO:#1 20762 5