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HomeMy WebLinkAboutOCSD 04-23.' -' ., I' / ,, ,. RESOLUTION NO. OCSD 04-23 CERTIFYING THE FINAL ENVIRONMENTAL IMPACT REPORT FOR IMPLEMENTATION OF THE ROCKY POINT PUMP STATION REPLACEMENT PROJECT, CONTRACT NO. 5-50; MAKING CERTAIN FINDINGS RELATING TO ENVIRONMENTAL EFFECTS IDENTIFIED IN THE FINAL ENVIRONMENTAL IMP ACT REPORT; AND ADOPTING A MITIGATION MONITORING AND REPORTING PROGRAM. WHEREAS, the Board of Directors of the Orange County Sanitation District (District), hereinafter referred to as "Board," is presently considering as the Lead Agency the certification of an Environmental Impact Report (EIR) pursuant to the California Environmental Quality Act for the Rocky Point Pump Station Replacement Project (Project); and, WHEREAS, the District proposes to construct a new wastewater pump station facility in the Newport Trunk wastewater collection system to replace the existing Rocky Point Pump Station; and, WHEREAS, District Staff has consulted with other public agencies and the general public, giving them an opportunity to comment on the Draft EIR as required by CEQA; and, WHEREAS, the Board has objectively evaluated the comments from public agencies and persons who reviewed the Draft EIR; and, WHEREAS, the comments and recommendations received on the Draft EIR, either in full or in summary, together with the District Staffs responses to significant environmental concerns raised in the review and consultation process, have been included in the Final EIR; and, . . ·. )\ :'..:,JI}/ I l' I'' ' \ _, ·,' -' I -\. '"' <{ .... J' WHEREAS, District Staff presented to the Board the Final EIR consistihg(ofthe Di;aft,,EIR, .:-·· ' 1 -.. ~ .. ',/""'>-.. list of comments on the Draft EIR, and responses to the comments received ori'the-Drait EIR for,..,. - .... )' \ ·--\ -· ~',,,, review and consideration prior to the final approval of, and commitment to, th~ pr'Q)ect. ·, ,I < , . ... "' .. ' J'j - NOW, THEREFORE, the Board of Directors of Orange County Sanit~ti~~·~i?-trict, . .' .~:~<: . --~<?/~~";'~_-.,~_,.·--;~,:~/. DOES HEREBY RESOLVE, DETERMINE, AND ORDER: . . n . , , , \ . I / . ' 1. That the Board hereby certifies that the Final EIR has been completed in compliance with CEQA and the State CEQA Guidelines and that the Board has reviewed and considered the information contained in the Draft EIR as revised by the Final EIR prior to approval of, or commitment to, the project and that the Final EIR, consisting of the Draft EIR and the Response to Comments, reflects the District's independent judgment and analysis; and, RESOLUTION 2. The Board finds that changes or alterations have been required in, or incorporated into, the proposed Project, which avoid or substantially lessen the significant environmental ·effects of the project and adopts the Findings of Fact as described in Attachment A; and, 3. The District will implement the mitigation measures recommended in the Effi. and the mitigation measures recommended in the Final Effi. to reduce the significant impacts of the project to a less-than-significant level. 4. The Board adopts the Mitigation Monitoring and Reporting Program ("MMRP") as described in Attachment B to ensure that the mitigation measures are implemented; and, 5. The Board authorizes and directs the Board Secretary 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 on August 25, 2004. ATTEST: ;'~ '•' .. \ •, I Chair ' ' ATITACHMENTA I. FINAL EIR FOR THE PROJECT The Final EIR, prepared pursuant to Section 15089 of the CEQA Guidelines, consists of the Draft EIR, comment letters received on the Draft EIR, and responses to those comments. II. THE ADMINISTRATIVE RECORD CONTENTS OF THE RECORD The following information is incorporated by reference and made part of the record supporting these findings and the actions taken by the District in certifying the Final EIR and approving the project: 1. The Final EIR and all documents relied upon or incorporated by reference in the Final EIR. 2. The Final PEIR for the 1999 Strategic Plan and all documents relied upon or incorporated by reference in the Final PEIR, including the 1999 PEIR MMRP. 3. All testimony, documentary evidence and all correspondence submitted to or delivered to the District in connection with the meetings and public hearings at which the Draft EIR or Final EIR was considered by the District. 4. All testimony, documentary evidence and all correspondence submitted to or delivered to any of the District's member districts in connection with the meetings, workshops and public hearings at which the Draft EIR or Final EIR was considered by the District's member districts. 5. All staff reports, memoranda, maps, slides, letters, minutes of meetings and other documents relied upon or prepared by District staff and consultants relating to the project. 6. Any other documents specified by Public Resources Code section 21167.6(e). LOCATION OF ADMINISTRATIVE RECORD The District is the custodian of the administrative record, including all CEQA documents and the other background documents and materials, which constitute the record of the proceedings upon which the Board's decisions to certify the Final EIR and approve the project are based. The administrative record is located at the District's administrative offices at 10844 Ellis Avenue, Fountain Valley, California, 92708. III. PURPOSE OF FINDINGS The Final EIR, prepared in accordance with CEQA, evaluates the significant adverse environmental impacts that could result from the project. Section 15091 of the CEQA Guidelines requires that the public agency approving or carrying out the project shall make written findings for each significant impact identified in the EIR, accompanied by a brief explanation of the rationale for each finding. These findings include one of the following: OCSD Rocky Point Pump Station Replacement EIR 3 ESA / 201168 A TIT ACHMENT A 1. Changes or alterations have been required to, or incorporated into, the project that avoid or substantially lessen the significant environmental effect as defined in the Final EIR. 2. Such changes or alterations are within the responsibility and jurisdiction of another public agency and not the agency making the finding. Such changes have been adopted by such other agency or can and should be adopted by such other agency. 3. Specific economic, legal, social, technological, or other considerations, including provision of employment opportunities for highly trained workers, make infeasible the mitigation measures or project alternatives identified in the Final EIR. These findings accomplish the following: 1. They address the significant environmental effects identified in the EIR for the approved project. 2. They incorporate all mitigation measures associated with these significant impacts identified in either the Draft EIR or Final EIR. 3. They explain why a significant effect is avoided or reduced by the adopted mitigation measures to a less-than-significant level. The conclusions presented in these findings are based on the initial study, the Final EIR and other evidence in the record of proceedings. IV. EFFECT OF FINDINGS To the extent that these findings conclude that various proposed mitigation measures outlined in the Final EIR are feasible and have not been modified, superseded, or withdrawn, the District hereby binds itself to implement these measures. These findings, in other words, are not merely information. The mitigation measures identified as feasible and within the District's authority to implement for the approved project are express conditions of approval which the District binds itself to upon adoption of this resolution and project approval. The Board will adopt an MMRP concurrently with these findings to ensure that the all mitigation measures will be implemented. The MMRP includes applicable mitigation measures from the MMRP developed for the 1999 Strategic Plan Program EIR. in addition to the newly identified measures developed as part if the EIR process for the proposed Project. V. THE ROCKY POINT PUMP STATION REPLACEMENT PROJECT The District proposes to purchase the four adjacent parcels to construct the new pump station. All four parcels would be purchased since the parcels are being offered for sale together rather than individually. The property is located on the north side of West Coast Highway from 1700 through 2000. The property is located in the City of Newport Beach and totals approximately 44,000 sf of which 22,000 sf is buildable. The property is presently occupied by commercial land uses, a portion of the City's "Pelican Wall," and an unbuildable slope area. The commercial land uses consist of four buildings: H&S Yacht Sales (1700 West Coast Highway), a two-story vacant OCSD Rocky Point Pump Station Replacement EIR 4 ESA / 201168 A TIT ACHMENT A office building (1730 West Coast Highway), and Dan Marty Antique Shop (1800 West Coast Highway) with adjoining parking lots. The on site buildings may continue to be leased or may be demolished if necessary to make room for construction. The Pelican Wall that is owned and maintained by the City of Newport Beach will remain undisturbed. The new underground pump station will be constructed on approximately 10,000 sf on the developed portion of the site at 1730 and 1800 West Coast Highway, the site of the vacant building and Dan Marty Antique Shop. The remaining usable area on the site, approximately 12,000 sf, may be used for District parking or leased in the future. The new station will have a designed pumping capacity of up to 23.6 mgd. The increase in design capacity is due to the reconfiguration of the force main network. The four principal pump stations currently operate parallel to one another and pump to a common force main network. The new configuration will operate the pump stations in series. Bay Bridge ( 17. 70 mgd), Rocky Point (5.84 mgd), and Lido (4.90 mgd) will pump to Bitter Point Pump Station. Bitter Point (12.56 + 17.70 + 5.84 + 4.90 mgd) will pump to Treatment Plant No. 2 (Fig. 1-2). The new configuration will allow the District to shut down one of the two force mains beneath PCH that make up the force main network. This will provide the District with flexibility to clean lines, make repairs, replace valves, etc., without risk of a sewage spill. The new Rocky Point Pump Station will consist of a below ground wet well and pump room, an above ground, 640 square foot, electrical control building and an above ground 150 square foot standby emergency generator building/room adjacent to the electrical building. The above ground facilities are located above and within the approximately 1,400 square foot footprint of the underground wet well and pump room. The wet well/pump room will house up to six pumps. A new half circle driveway with two curb cuts on West Coast Highway would provide access to the new pump station facility. The project also requires reconfiguration of the discharge force main piping due to the abandonment of the existing pump station and the need to connect the new pump station to the existing pipeline network. This work will require some limited lane closures in West Coast Highway for approximately four (4) to six (6) week. The District estimates that the construction period for all components of the project would last approximately 17 months, beginning in August 2006 and ending in December 2007. VI. FINDINGS CONCERNING SIGNIFICANT IMPACTS REDUCED TO LESS THAN SIGNIFICANT LEVELS BY MITIGATION MEASURES INCORPORATED INTO THE PROJECT The Final EIR identifies significant impacts that are reduced to a "less-than-significant" level by the inclusion in the project approval of the mitigation measures identified in the Final EIR. These measures will avoid or substantially lessen the significant environmental effects identified in the Final EIR to a less than significant level. These changes and alterations are presented in the MMRP, which the Board is adopting concurrently with these findings. OCSD Rocky Point Pump Station Replacement EIR 5 ESA / 201168 A TIT AC HM ENT A AESTHETICS A. Facts 1. The EIR discusses aesthetic impacts in Section 3 .1. According to the EIR, removal of the existing structures on the proposed Project site would modify the visual character of the project site and its surroundings. While there is a possibility that the District will continue to lease one or more of the existing buildings on site, for purposes of evaluating potential aesthetics impacts, the EIR assumes that the existing buildings on the site would be removed. The project also entails new construction of two above ground structures: a 640 sf electrical control building and an adjacent 150 sf standby generator building. If the buildings were demolished, the remaining usable area on the site would be approximately 12,000 sf and may be utilized for District parking. 2. The project site is also located within the Mariners Mile Specific Plan area and is subject to the Mariners Mile Strategic Vision and Design Framework. To ensure that the new structures and proposed landscaping are consistent with these standards, the EIR identifies mitigation measure M-3.1-1, which requires the District to retain a qualified architect to design the architectural and landscaping plan to be compatible with the Mariner's Mile Strategic Vision and Design Framework. This mitigation measure will ensure that project impacts on the visual character of the site and its surroundings will be less than significant. 3. The project site is currently developed with four (4) existing commercial buildings and related parking that generates a certain level of nighttime lighting. These existing uses would be removed and replaced with a less intense pump station facility, which includes above ground structures that total approximately 790 square feet. While the project would require nighttime lighting similar to the existing uses, the only proposed nighttime lighting is low-intensity security lighting associated with the aboveground facility. The lights would be shielded to prevent shining up toward the houses on the cliff top behind the site. The security lighting would be similar to that of the adjacent business district along West Coast Highway. The District will install motion sensors to control the lights when the station is unmanned. 4. The EIR identifies mitigation measure M-3.1-2, which requires that all permanent exterior lighting that is installed on the new project site shall be designed in accordance with the Mariner's Mile Strategic Vision and Design Framework. Motion sensors shall be installed to control the lights when the station is unmanned. B. Findings: This Board finds that: 1. The recommended mitigation measures in the EIR are adopted. These measures will mitigate the aesthetic impacts of the project to less-than-significant levels. AIR QUALITY A. Facts 1. The EIR discusses air quality impacts in Section 3.2. According to the EIR, construction of the proposed Project would emit criteria pollutants including dust generated from excavation, exhaust emissions from powered construction equipment, and motor vehicle emissions associated OCSD Rocky Point Pump Station Replacement EIR 6 ESA / 201168 ATITACHMENT A with construction activities. However, estimated project construction emissions would be below the significance thresholds set by the South Coast Air Quality Management District (SCAQMD). Therefore, project construction emissions would have a less than significant air quality impact. Nonetheless, the EIR recommends implementation of mitigation measures identified in the 1999 PEIR MMRP to further minimize construction emissions. 2. The EIR identifies mitigation measure 7.5-la, 7.5-lb, and 7.5-lc (identified in the 1999 PEIR). These measures reduce the volume of pollutant emissions from the construction site and include implementation of a dust abatement program to reduce fugitive dust emissions and lessen impacts on nearby sensitive receptors, equipment maintenance and operational restrictions (e.g. no operation during second stag smog alerts, engine shut off during loading and unloading activities, etc.) 3. According to the EIR, excavation could release naturally occurring objectionable odors. Objectionable "rotten egg" odors are lmown to emanate from the soils in the project vicinity. A soil gas survey was conducted on the site in January 2004. The survey concluded that methane and hydrogen sulfide (H2S) gas exist in soils beneath the site. Excavation could potentially release trapped H2S odors, which may be objectionable to land uses in the vicinity. With completion of the pump station, the condition would return to its pre-construction state. 4. The EIR identifies mitigation measures M-3.2-1 and M-3.2-2 to confine offensive odors to the project site. These measures require contractors to cover excavated soils and pits that emit odors with plastic sheeting. Contractors must also remove the soils from the construction area within a few days to prevent significant stockpiling of odor emitting soils. In addition, the underground gas collection systems will include an odor control mechanism to filter any naturally occurring adverse odors. B. Findings: This Board finds that: 1. The recommended mitigation measures in the EIR are adopted. These measures will mitigate the air quality impacts during project construction to less-than-significant levels. CULTURAL RESOURCES A. Facts 1. The EIR discusses cultural resources impacts in Section 3.4. According to the EIR, implementation of the proposed Project could affect unlmown or poorly recorded, potentially significant prehistoric and historic resources. 2. The EIR identifies mitigation measure M-3.4-1, which requires that "provisions for historical or unique archaeological resources accidentally discovered during construction" shall be instituted. If archaeological resources are uncovered, the District shall instruct its contractors to halt construction activity within 50 feet of the find and immediately notify the District about the find. The District shall then retain a qualified archaeologist who must assess the find and develop a mitigation plan that ensures that the resources are removed from the site or otherwise protected on-site. OCSD Rocky Point Pump Station Replacement EIR 7 ESA / 201168 ATITACHMENT A 3. According to the EIR, the proposed Project may damage or degrade unidentified paleontological remains. The probability of encountering intact significant vertebrate paleontological resources in this area is low. Nonetheless, large quantities of invertebrate fossils have been found in the East Newport Bluffs. 4. The EIR identifies mitigation measure M-3.4-2, which requires that in the event of an unanticipated discovery of a fossil during construction, the District shall instruct its contractors to halt construction activity within 50 feet of the find and immediately notify the District about the find. The District shall then retain a qualified paleontologist, who must assess the find and develop a mitigation plan that ensures that the resources are removed from the site or otherwise protected on site. B. Findings: This Board finds that: 1. The recommended mitigation measures in the EIR are adopted. These measures will mitigate the cultural resources impacts during project construction to less-than-significant levels. GEOLOGY AND SOILS A. Facts 1. The EIR discusses geology and soils impacts in Section 3.5. The project requires excavation to accommodate the below ground wet well and pump room and related facilities. According to the EIR, the proposed Project could expose structures to potential adverse effects due to earthquake-induced landslides. According to the California Geological Survey geologic seismic hazard maps, the slope on the project site is located in an earthquake-induced landslide area. Slopes on the project site are approximately 4 to 1 (horizontal to vertical), composed entirely of relatively weak geologic materials (alluvium) with a high erosion hazard. Due to location of the project site in a seismically active region and its proximity to an adjacent slope, the District retained Diaz Y ourman & Associates, a geotechnical engineering firm, to assess the potential geology and soils impacts of the project (see "Geotechnical Investigation Rocky Point Pump Station Replacement Project, Newport Beach," dated April 27, 2004) ("Geotechnical Report"). Diaz Yourman concluded that the project would not increase the risk of slope failure and recommended construction techniques to ensure that the slope would be adequately protected. 2. The EIR identifies mitigation measure M-3.5-1, which requires the District to incorporate recommendations from the Geo technical Report into the design and construction of the proposed facilities. 3. According to the EIR, new structures will be subject to strong ground shaking during an earthquake. The region is seismically active, and any new development is subject to seismic ground shaking hazards. 4. The EIR identifies mitigation measure M-3.5-2, which requires the District to design the proposed facilities for the seismic design parameters identified in the Geotechnical Report in accordance with applicable requirements of the Uniform Building Code (UBC). OCSD Rocky Point Pump Station Replacement EIR 8 ESA / 201168 ATITACHMENTA 5. According to the EIR, the proposed Project could be underlain by corrosive soils that could compromise the integrity of buried structures. The geotechnical investigation identified potentially corrosive soils and recommended that further a corrosion specialist be consulted. 6. The EIR identifies mitigation measure M-3.5-3, which requires the District to consult a corrosion specialist to determine suitable materials or construction methods that are appropriate for corrosive soil conditions on the site in accordance with applicable UBC standards. The District shall utilize recommended materials to ensure adequate protection of underground piping. B. Findings: This Board finds that: 1. The recommended mitigation measures in the EIR are adopted. These measures will mitigate geology and soils impacts to less-than-significant levels. HAZARDS AND HAZARDOUS MATERIALS A. Facts 1. The EIR discusses hazards and hazardous materials impacts in Section 3.6. This section is based on numerous site investigations conducted by Environmental Support Technologies. According to these reports, which are referenced and summarized in Section 3.6 of the EIR, project construction activities could encounter soils and groundwater containing naturally occurring petroleum hydrocarbons. 2. The EIR identifies mitigation measures M-3.6-1 and M-3.6-2 to ensure that soils and groundwater containing naturally occurring petroleum are properly removed from the site to avoid any potential health and safety impact. These measures require the District to collect soil samples from excavated soil to adequately characterize levels of petroleum hydrocarbons in the soil. If sample results exceed 1,000 mg/kg TPH, the soil will be disposed of as petroleum- contaminated waste in accordance with applicable regulations. The District must also comply with its own source-control requirements prior to discharging groundwater as part of the construction dewatering process into the sanitary sewer. 3. According to the EIR, construction activities could encounter hazardous levels of methane and H 2S. A soil gas survey conducted in January 2004 identified elevated levels of methane and H 2S in samples collected five feet below ground surface near the H&S Yacht facility. 4. The EIR identifies mitigation measures M-3.6-3, M-3.6-4, M-3.6-5, M-3.6-6, M-3.6-7, and M-3.8-8, which requires the District to implement methane and H 2S monitoring and control strategies during construction. During excavation activities, gas emissions will be continually monitored to ensure that levels do not exceed pre-established hazardous and toxic gas reaction thresholds. If these thresholds are reached during excavation, the District must halt work immediately and construction personnel shall exit the site until gas emission levels are reduced to a safe level. The District will develop measures to reduce gas emissions that could include installing an active excavation gas extraction (ventilation) system during construction. OCSD Rocky Point Pump Station Replacement EIR 9 ESA / 201168 A TIT ACHMENT A The District must also ensure that open excavation areas that emit odors will be covered during non-work hours and removed from the construction areas within a few days of excavation. The District will notify the Orange County Health Care Agency of remedial actions. To reduce the risk of explosion and firs, all equipment used on-site during excavation activities must be equipped with spark-arrestors. In addition, the work area including the excavation sides will be watered down to aid in suppressing odor and vapor emissions and to further reduce the risk of explosion and/or toxic vapor exposure; The District will notify property owners within a 500-foot radius of the site of the construction schedule. The notification will provide an explanation of what causes the naturally occurring odors and will provide a number to call to report objectionable odors. Finally, prior to construction, the District shall prepare a Site Safety Plan for construction activities. 5. According to the EIR, hazardous levels of methane and H2S could accumulate under the new pump station or seep into the wet well, causing explosion and toxicity hazards. Improperly designed subsurface construction could result in an explosion hazard. In addition, toxic gasses in soils could seep into the pump station if improperly designed. Gas collection and venting systems as well as vented gas treatment systems would be required to comply with all SCAQMD Rules and may require emissions permits depending on the type of systems employed and the concentrations of gasses emitted. 6. The EIR identifies mitigation measures M-3.6-9, M-3.6-10, M-3.6-11, and M-3.6-12, which require the implementation of a venting system and other controls to reduce the risk of human exposure to elevated levels of methane and H2S. These measures specifically require the District to: • ensure that all structures built on the subject site are designed for protection from gas accumulation and seepage, based on recommendation of a geotechnical engineer or other qualified consultant; • ensure that buildings on the subject site will be constructed with passive or active gas collection systems under the foundations; • ensure that all buildings on the subject site will be equipped with methane, H 2 S, and oxygen sensors. Such sensors will be installed in areas of likely accumulation, such as utility or other seldom-used rooms. Sensors shall monitor on a continuous basis, and shall be tied into fire alarm systems for 24-hour surveillance; • ensure that utility or other seldom-used service or storage rooms are serviced by the buildings central conditioning system (or an otherwise positive ventilation system that circulates and replaces the air in such rooms on a continuous basis). 7. According to the EIR, structures to be demolished/removed may contain lead paint and/or asbestos-containing materials. Construction of the new pump station may require existing structures on the proposed Project site to be demolished. Air emissions regulations require that lead based paint and asbestos containing materials are removed prior to demolition. OCSD Rocky Point Pump Station Replacement EIR 10 ESA/201168 A TIT ACHMENT A 8. The EIR identifies mitigation measure M-3.6-13, which requires that structures to be demolished or removed will be investigated for the presence oflead paint or asbestos-containing material, and proper precautions will be taken for safe removal and disposal of these materials prior to demolition activities. B. Findings: This Board finds that: 1. The recommended mitigation measures in the EIR are adopted. These measures will mitigate hazards and hazardous materials impacts to less-than-significant levels. HYDROLOGY AND WATER QUALITY A. Facts 1. The EIR discusses hydrology and water quality impacts in Section 3.7. According to the EIR, construction activities could adversely impact storm water runoff quality if not properly managed. Prior to construction, preparation of a Storm Water Pollution Prevention Plan to minimize impacts from storm water to local receiving water would be required for compliance with the Statewide National Pollutant Discharge Elimination System (NPDES) General Permit for Construction Activities. 2. The EIR identifies several mitigation measures that must be implemented during project construction to ensure that stormwater generated from the site during rainstorms will not adversely affect water quality. The EIR identifies mitigation measures 7.7-la, 7.7-lc, 7.7-ld, 7.7-le, and 7.7-lf from the 1999 PEIR, which will also reduce this project's water quality impacts to a level of insignificance. These measures require: • implementation of Best Management Practices to prevent erosion and sedimentation to avoid significant adverse impacts to surface water quality; • coordination with the Orange County Public Facilities and Resources Department (Orange County Flood Control District) Planning Section to ensure compatibility and joint use feasibility with existing and future projects; • incorporation into contract specifications that the contractor(s) enforce strict on-site handling rules to keep construction and maintenance materials out of receiving waters; • incorporation into contract specifications that the contractor(s) prepare a Spill Prevention, Control, and Countermeasure Plan. The plan would include measures to be taken in the event of an accidental spill, and; • incorporation into contract specifications that the construction staging areas be designed to contain contaminants such as oil, grease, and fuel products so that they do not drain towards receiving waters or storm drain inlets. 3. According to the EIR, the construction of the proposed Project would require the disposal of groundwater during the dewatering process. As noted in the EIR, the site contains a certain OCSD Rocky Point Pump Station Replacement EIR 11 ESA / 201168 ATITACHMENT A level of naturally occurring petroleum hydrocarbons and metals. The District would not discharge groundwater into the local storm drain system. Instead, the extracted water will be discharged into the sanitary sewer and treated accordingly. In accordance with the District's source control ordinance, pretreatment of the groundwater may be required prior to discharge into the sanitary sewer system. 4. The EIR identifies mitigation measure M-3.7-1, which requires that prior to dewatering activities, the District shall evaluate the potential water quality from dewatering at the site and impose source control restrictions if necessary based on the existing source control program. These restrictions could include pretreatment to remove some contaminants prior to discharging to the sanitary sewer. B. Findings: This Board finds that: 1. The recommended mitigation measures in the EIR are adopted. These measures will mitigate hydrology and water quality impacts to less-than-significant levels. NOISE A. Facts 1. The EIR discusses noise impacts in Section 3.9. According to the EIR, construction of the proposed Project would temporarily (over an approximately 17-month period) generate high noise levels that could adversely affect sensitive noise receptors. However, construction activity will be restricted to the least noise sensitive daytime hours per the City of Newport Beach noise ordinance. Construction activity is prohibited between 6:30 p.m. and 7:00 am on weekdays, between 6:00 p.m. and 8:00 a.m. on Saturday, all day Sunday and on federal holidays. (City of Newport Beach Municipal Code Section 10.28.040 "Construction Activity--Noise Regulations.") This construction restriction is reflected in Mitigation Measure M-3.9-2. 2. The EIR also identifies mitigation measures M-3.9-1 and M-3.9-3. Measure M-3.9-1 requires the District to periodically inspect construction equipment on site to ensure that the equipment is properly muffled and in good operating condition. M-3.9-3 requires the District to notify sensitive receptors within 100 feet the Project construction activities concerning the Project timing and construction schedule, and provide a phone number to call with questions or complaints. B. Findings: This Board finds that: 1. The recommended mitigation measures in the EIR are adopted. These measures will mitigate temporary construction noise impacts to less-than-significant levels. TRAFFIC A. Facts OCSD Rocky Point Pump Station Replacement EIR 12 ESA I 201168 ATITACHMENT A 1. The EIR discusses traffic impacts in Section 3.10. According to the EIR, implementation of the proposed Project would require lane closures on West Coast Highway during construction activities, which would temporarily reduce roadway capacity. Lane closures may last between four and six weeks, which is the District's estimated timeframe to install the necessary piping to connect the new pump station to the exiting network on pipelines. Prior to any construction occurring within the West Coast Highway right-of-way, the District must apply for and obtain an encroachment permit from Caltrans. As part of this encroachment permit application, a Traffic Management Plan (TMP) would be prepared in conformance with Caltrans requirements for permitting. The TMP would identify lane closure procedures, emergency access routes, and bike path detour routes. According to the District's construction personnel, the District will maintain one lane of access in each direction at all times during work in the right of way. In addition, based on the District's prior experiences with Cal Trans and encroachment permit conditions, the District anticipates that construction activity within the right-of-way would be limited to the hours of 9:00 am to 3:00 p.m. or off-peak, non-rush hour, traffic periods. Therefore, lane closures are not expected to disrupt traffic flows during the busiest a.m. peak (6:00 -9:00) and p.m. peak (3:00-6:00) hour traffic periods. Finally, at the end of each construction day, steel plates will be placed over unfinished trenches and all lanes will be reopened to accommodate traffic flows. 2. According to the EIR, implementation of the proposed Project would restrict access to businesses from West Coast Highway during construction. Preparation of a TMP, as required by Caltrans, would minimize traffic and pedestrian hazards, maintain access to businesses, and keep public streets operational during construction. The TMP would provide for pedestrian access and parking access during business hours to the extent feasible for businesses blocked by trenching activities. However, parking lots of some businesses could be temporarily blocked for short periods of time as described above, and parking on West Coast Highway would be reduced for up to four weeks. 3. The EIR identifies seventeen mitigation measures (7.1-la through 7.1-le, 7.2-la through 7.2-lj, and 7.2-11 through 7.2-ln) that were also identified in the 1999 PEIR to reduce the temporary inconvenience to motorists during construction within West Coast Highway and other construction related traffic impacts to a level of insignificance. These measures require the District to: • comply with local ordinances and restrict construction activities to daylight hours or as specified in encroachment permits; • post notices or provide notification of construction activities to adjacent property owners (including homeowners and adjacent businesses) at least 72 hours in advance of construction and provide a contact and phone number of a District staff person to be contacted regarding questions or concerns about construction activity; • coordinate with officials of adjacent fire station, the Fountain Valley Regional Hospital as well as other hospital to ensure that 24-hour emergency access is available; • minimize disruption of access to driveways to adjacent land uses, the District or its contractor(s) shall maintain steel-trench plates at the construction sites to restore access across open trenches. Construction trenches in streets will not be left open after work hours; OCSD Rocky Point Pump Station Replacement EIR 13 ESA/ 201168 ATITACHMENTA • provide temporary signage indicating that businesses are open; • retain a qualified professional engineer to prepare traffic control plans prior to the construction phase of each sewer line project as implementation proceeds; • ensure that traffic control plans consider the ability of alternative routes to carry additional traffic and identify the least disruptive hours of construction site truck access routes, and the type and location of warning signs, lights and other traffic control devices. Consideration will be given to maintaining access to commercial parking lots, private driveways and sidewalks, bikeways and equestrian trails, to the greatest extent feasible; • ensure that encroachment permits for all work within public rights-of-way are obtained from each involved agency prior to commencement of any construction; • ensure that traffic control plans comply with the Work Area Traffic Control Handbook and/or the Manual of Traffic Controls as determined by each affected local agency, to minimize any traffic and pedestrian hazards that exist during project construction. • ensure that the construction technique includes consideration of the ability of the roadway system to carry traffic volumes during project construction; • ensure that public streets to generally be kept operational during construction, particularly in the morning and evening peak hours of traffic. Lane closures will be minimized during peak traffic hours; • ensure that public roadways are restored to a condition mutually agreed to between the District and local jurisdictions prior to construction; • attempt to schedule construction of facilities to occur jointly with other public works projects already planned in the affected locations, through careful coordination with all local agencies involved; • coordinate with emergency service purveyors. Additionally, measures to provide an adequate level of access to private properties shall be maintained to allow delivery of emergency services; • contact OCT A when construction affects roadways that are part of the OCT A bus network; • provide detours to locally designated trails and bikeways, as found in the County's Master Plan of Regional Riding and Hiking Trails (RRHT) and Commuter Bikeways Strategic Plan (CBSP) as appropriate; • submit construction plans that could potentially impact regional riding and hiking trails or Class I bikeways to the County's Division of Harbors, Beaches and Parks/Trails Planning and Implementation for review and approval prior to project construction activities, and; • restore regional Riding and Hiking Trails and Class I Bikeways impacted by construction activities to their original condition after project construction. OCSD Rocky Point Pump Station Replacement EIR 14 ESA / 201168 AITTACHMENT A 4. In response to comments on the EIR., the District has added two new mitigation measures to the EIR, M-3.10-2 and M-3.10-3, to further reduce potential construction traffic impacts. M- 3 .10-2 requires the District to post signage along West Coast Highway two weeks prior to any proposed lane closure to provide motorist with an opportunity to consider alternative routes to West Coast Highway. M-3.10-3 prohibits lane closures between Memorial Day and Labor Day of any given calendar year or during the week of the Boat Parade, which is typically one week long during mid-December. These measures will further ensure that temporary traffic impacts during construction will be less than significant. B. Findings: This Board finds that: 1. The recommended mitigation measures in the EIR. are adopted. These measures will mitigate traffic impacts to less-than-significant levels. VII. FINDINGS CONCERNING IDENTIFIED IMPACTS THAT WERE DETERMINED TO BE LESS THAN SIGNIFICANT WITHOUT NEEDING TO IDENTIFY MITIGATION MEASURES The Final EIR identifies impacts that are considered to be "less than significant" not requiring mitigation measures. It is hereby determined that these environmental impacts of the project will be less than significant. AIR QUALITY A. Facts I. The Final EIR. analyzes potential air quality impacts in Section 3.2. According to the EIR., new air pollutant emissions during project operation would be minimal and limited solely to the periodic testing of the emergency generator. In order to ensure system reliability, the new pump station will be equipped with an emergency generator. The emergency generator will be diesel-powered, and will be tested periodically to ensure proper functioning. The periodic testing of an emergency generator will not contribute significantly to air emissions in the region. The projected emissions are well below the SCAQMD significance thresholds. Routine maintenance and inspections will be similar to activity that the District currently undertakes at the existing pump station. Therefore, there would no net increase in emissions above current maintenance and inspection vehicles emissions. B. Findings The Board finds that: 1. Project operation will have a less than significant impact on air quality. OCSD Rocky Point Pump Station Replacement EIR 15 ESA / 201168 A TIT ACHMENT A BIOLOGICAL RESOURCES A. Facts 1. The Final EIR analyzes potential biological resources impacts in Section 3.3. Project construction will take place mostly on existing developed and paved areas. The proposed Project will require construction of a retaining wall at the toe of the vegetated slope and may remove some vegetation on the bottom portion of the slope. The hillside is partially vegetated with landscape plants. Based on the results of the literature review and field reconnaissance of the site, neither the project site nor adjacent hillside support habitat of sufficient quality to be used by special status plant or wildlife species. Neither construction activities nor operation of the proposed Project will adversely affect sensitive or special-status species or modify sensitive habitat. B. Findings The Board finds that: 1. Project construction will have a less than significant impact on biological resources. GEOLOGY AND SOILS A. Facts 1. The EIR analyzes potential geology and soils impacts in Section 3.5. According to the EIR, the proposed Project could expose structures to potential adverse effects due to liquefaction. The Geotechnical Report analyzed the potential liquefaction and lateral spreading risk on site. The results of the analysis indicate that subsurface soils are not susceptible to substantial liquefaction. The report further concludes that the potential for liquefaction-induced lateral spreading is low at the site. 2. According to the EIR, the proposed Project could result in substantial soil erosion or loss of topsoil. However, most of the construction would take place on the flat portion of the site, which is less susceptible to erosion. During construction, the District will comply with erosion and sediment control measures in accordance with the NPDES Storm Water Discharge General Permit for Construction Activities. Through the implementation of proper construction techniques and practices, the impacts associated with soil erosion will be reduced to less-than- significant levels. 3. According to the EIR, the proposed Project could expose structures to potential adverse effects due to rupture of a known earthquake fault. However, the site is not located in a specific Alquist- Priolo Fault Rupture Hazard Zone. Also, no onshore surface fault rupture has occurred in historic time (since 1769) on the Newport-Inglewood fault zone. This evidence supports the determination that there is a low risk of surface fault rupture at the proposed Project site. B. Findings The Board finds that: OCSD Rocky Point Pump Station Replacement EIR 16 ESA / 201168 A TIT ACHMENT A 1. Project construction and operation will have a less than significant impact on geology and soils. HYDROLOGY AND WATER QUALITY A. Facts 1. The EIR analyzes potential hydrology and water quality impacts in Section 3.7. According to the EIR, the proposed Project could be subject to inundation by tsunami or seiche. Tsunamis are a potential hazard at this site due to the close proximity of the coast and low elevation. Orange County has not experienced a tsunami of magnitude greater than high storm tides, however the coastal area is subject to potential tsunami damage when combined with high tides. The offshore islands provide some protection to the coastline from the impacts of tsunamis originating from distant seismic events. According to the City of Newport Beach Public Safety Element of the General Plan, seiches do not represent a potential hazard to public safety and the chances of major damage from tsunamis are negligible for inland bays. The project will not increase the public hazard from potential tsunami. 2. The Project would also have a less than significant impact on water quality once operational. Design features have been incorporated into the project that prevent the discharge of stormwater runoff into the local storm drains. Instead, stormwater will retained on site, discharged into the underground wet well, and ultimately sent along with sewage flows to Treatment Plant No. 2 for treatment. B. Findings The Board finds that: 1. Once operational, the project will have a less than significant water quality impact and would not increase the public hazard from a potential tsunamis and seiches. LAND USE A. Facts 1. The EIR analyzes potential land use impacts in Section 3.8. According to the EIR, construction and operation of the proposed Project would be consistent with existing land use plans, policies, and regulations including zoning designations. The site is surrounded by commercial properties with residential properties and a park located atop the bluff that runs along the northern half of the site. The project will not physically divide an established community. Implementation of the proposed Project will not conflict with existing or planned land uses. Furthermore, architectural design and landscaping plans will comply with Mariner's Mile Strategic Vision and Design Framework. The Project will not conflict with the requirements of the Local Coastal Program and a Local Coastal Development permit would not be required. 2. According to the EIR, construction and operation of the proposed Project will be required to comply with habitat conservation plans or natural community conservation plans. Although the project site is located within the boundary of the Central/Coastal Orange County NCCP area, no OCSD Rocky Point Pump Station Replacement EIR 17 ESA / 201168 A TIT ACHMENT A special status habitat that is part of a conservation plan exists at the project site. Neither the Project site nor the adjacent hillside support special status plant or wildlife habitats. Neither construction activities nor operation of the proposed Project will adversely affect sensitive or special-status species or modify sensitive habitat. No conflict with the NCCP will occur as a result of the project. B. Findings The Board finds that: 1. Project construction and operation will have a less than significant impact on land use. NOISE A. Facts 1. The EIR analyzes potential noise impacts in Section 3.9. According to the EIR, operation of the proposed Project could generate noise. However, occasional daily visits would add minimal vehicle noise. The principal noise source in the area during day and nighttime hours is West Coast Highway. The pump station will be designed to minimize noise generation, such that no noise will be audible during nighttime hours on adjacent properties. The pumps will be housed underground in a concrete structure. No noise will be generated by routine operations of the pump station that could be heard on neighboring properties. 2. According to the EIR, the proposed Project could expose persons to, or generate, excessive groundborne vibration during construction. Vibration could be caused by heavy equipment such as excavators and dozers. No pile driving or vibratory piles will be used during construction. The vibration resulting from vehicle movement and excavation would be temporary in nature, occurring only during certain phases of the project such as demolition, excavation, and grading. Any vibration caused by the project would not be steady from stationary sources, but rather intermittent associated with heavy vehicles. The proposed Project would not generate vibrations that approach the damage thresholds for residential commercial buildings. Therefore, vibrations will not cause damage to off-site structures or create temporary nuisance conditions to sensitive land uses. B. Findings The Board finds that: 1. Noise and vibration generation during construction will have a less than significant impact on neighboring receptors. TRAFFIC A. Facts OCSD Rocky Point Pump Station Replacement EIR 18 ESA / 201168 A 1TT ACHMENT A 1. The Final EIR analyzes potential traffic impacts in Section 3.10. According to the EIR, the project will add temporary construction traffic to local roadways. Vehicle traffic associated with construction of the project would include material deliveries, soil removal, and construction worker commute to the site. The temporary contribution of construction traffic will not affect the current level of service for any intersections. B. Findings The Board finds that: 1. Project construction will have a less than significant impact with regards to traffic. VIII. FINDINGS CONCERNING ALTERNATIVES A. NO PROJECT ALTERNATIVE Under this alternative, the District would take no action to increase the pumping capacity of the existing Rocky Point Pump Station. The existing commercial uses on the site would continue to operate and the existing pump station would remain in place. The Board finds that this alternative is infeasible and less desirable than the proposed Project and rejects this alternative for the following reasons: 1. The No Project Alternative would not accommodate the projected increase in wastewater flows or facilitate the new pump system reconfiguration in the Newport Trunk. 2. As the existing equipment ages, the possibility of sewage spills and fugitive odor releases would increase under the No Project Alternative. 3. The existing facilities do not meet current seismic building and electrical code requirements and could pose worker safety hazards (Lee & Ro, Replacement of the Rocky Point Pump Station, Contract 5-50 Draft Site Study Report, October 2003, p. 10). B. ALTERNATIVE SITE 1 (OCC PARKING LOT) Under this alternative, the pump station would be located in the parking lot of the Orange Coast School of Sailing and Seamanship west of the existing pump station on the coastal side of West Coast Highway adjacent to the Lido Isle Reach of the Newport Bay. The Board finds that this alternative is infeasible and less desirable than the proposed Project and rejects the alternative for the following reasons: 1. The small size of the available property would limit the maintenance capabilities at the station since parking for maintenance vehicles would not be available. 2. The pump station would exacerbate the parking shortage at the Sailing School by permanently removing parking and constrain public access. According to a comment letter on the EIR, sent by a representative of OCC, the intensity of use of the site already places great strains on the carrying capacity for use of the site, particularly in terms of public access and parking. (Letter from K. Smith to A. Anderson, dated August 5, 2004. OCSD Rocky Point Pump Station Replacement EIR 19 ESA / 201168 A TIT ACHMENT A 3. The construction impacts of noise, dust, and traffic, would adversely affect OCC's educational programs. In their comment letter on the EIR, OCC expressed concerns over the 17 month construction period and its "near catastrophic" effect on educational programs at the school. 4. The existence of shallow groundwater underlying this site would increase the difficulty of construction and could present structural problems in the future. (Lee & Ro, OCSD Rocky Point Pump Station Replacement Project Contract 5-50 Draft Site Study Report, dated October 2003). Due to the site's closer proximity to the bay, groundwater is encountered approximately four (4) below surface. 5. The site would block views of the Bay. Under the alternative, the District would construct an approximately 12 foot high structure on a relatively level portion of an existing parking lot. There are currently no structures at this location, which results in unimpeded views of the bay from West Coast Highway, bike lanes and sidewalks. C. ALTERNATIVE SITE 3 {TACO BELL) Under this alternative, the pump station would be located in the parking lot of the Taco Bell Restaurant approximately 350 feet east of the existing pump station on the inland side of the West Coast Highway. The Board finds that this alternative is infeasible and less desirable than the proposed Project and rejects the alternative for the following reasons: 1. The site would eliminate much of the existing parking lot, creating a parking deficit for the existing restaurant at the site. (See EIR, p. 4-11) 2. The construction impacts of noise, air quality (dust and odor), and traffic, would be greater on this site because the project would be located closer to adjacent land uses than under the proposed Project. The project would be located a short distance from two existing businesses, Taco Bell and Jiffy Lube, just inside a common driveway used to access the businesses. Due to the nature of these businesses, the volume of vehicle and pedestrian traffic accessing the site is high during the day, creating a greater potential for significant traffic and pedestrian conflicts. Other construction related impacts, such as noise, dust, and odor from construction vehicles could affect outdoor dining at Taco Bell. 3. District would also be required to purchase or lease this site, which could present significant hurdles considering the potential disruption of the existing businesses. D. ALTERNATIVE SITE 4 (EAST CORNER-BALBOA BAY CLUB) Under this alternative, the pump station would be located in the parking lot of the Balboa Bay Club, approximately 1,500 feet east of the existing pump station on the coastal side of the West Coast Highway. The site is adjacent to the Balboa Bay Club's administrative offices, restaurants, and dock access. The Board finds that this alternative is less desirable than the proposed Project and rejects the alternative for the following reasons: OCSD Rocky Point Pump Station Replacement EIR 20 ESA / 201168 ATITACHMENT A 1. The small size of the available property would limit major maintenance capabilities at the station due to the lack of parking available for maintenance vehicles. 2. The project would be immediately adjacent to existing Balboa Bay Club facilities. Unlike the preferred project site, which is approximately 100 feet from the nearest uses, there would be no buffer between the new station and existing land uses. Therefore, project construction impacts of noise and air quality would occur closer to adjacent land uses than under the proposed Project. 3. The site would require trenching in West Coast Highway for a substantially longer period due to the location. Thus, lane closures on West Coast Highway would occur for a longer period than the project. As documented in the Site Study Report, this alternative would require significant more trenching. Approximately 1,500 feet of inflow and outflow piping would be required under to connect the pump station to the existing system. 4. Like Alternative 1, which is located on the bay side of PCH, the existence of shallow groundwater would complicate the construction effort and would increase the potential for structural problems in the future. 5. The feasibility of acquiring either fee title to this site or easement to operate a pump station is questionable. The Balboa Bay recently upgraded the area adjacent to the pump station location under this alternative. Therefore, the likelihood that the City of Newport Beach would either sell or lease a portion of the property to the District to construct the pump station is remote. E. ALTERNATIVE SITE 5 (EAST SIDE OF H&S YACHT) Under this alternative, the pump station would be located adjacent to the present location of the H&S Yacht Sales building approximately 350 feet west of the existing pump station on the inland side of the West Coast Highway. The existing office building and storage sheds and parking area would be demolished. Two options for the layout of the new pump station facility were considered in this location and identified in the initial NOP. Option one would be located in the northeast comer of the site near the toe of the cliff, and Option 2 would be along the eastern border within 10 feet of the neighboring building. Both options would require demolishing structures on site. The Board finds that this alternative is infeasible and less desirable than the proposed Project and rejects the alternative for the following reasons: 1. Due to the closer proximity of the pump station to the existing veterinarian office and the Vallejo art gallery (approximately 5 feet), Option 2 would have greater construction impacts. Construction noise and vibration would be greater and more disruptive than the project. In addition, dust from construction activity could adversely affect the art gallery. 2. While Option 1 would be located away from the existing uses, from a geotechnical standpoint, this Option creates greater slope stability issues, because this option contemplates cutting into the slope and installation of a retaining wall. OCSD Rocky Point Pump Station Replacement EIR 21 ESA / 201168 ATITACHMENT 8 OCSD Rocky Point Pump Station Replacement EIR 22 ESA/ 201168 ATTACHMENT B MITIGATION MONITORING AND REPORTING PLAN ATTACHMENT B-MITIGATION AND MONITORING PROGRAM Effi FOR ROCKY POINT PUMP STATION REPLACEMENT PROJECT AESTHETICS ORANGE COUNTY SANITATION DISTRICT MITIGATION MONITORING AND REPORTING PROGRAM FOR THE ROCKY POINT PUMP STATION REPLACEMENT PROJECT Impact 3.1-1: The proposed project would modify the existing visual character of the site. Measure (M-3.1-1) The District shall retain a qualified architect to design the architectural and landscaping plan to be compatible with the Mariner's Mile Strategic Vision and Design Framework. IMPLEMENTATION PROCEDURE I. Retain a qualified architect to assist with structure's exterior design and landscaping. MONITORING AND REPORTING ACTIONS Monitor compliance with architectural contract specifications. Record compatibility with the Mariner's Mile Strategic Vision and Design Framework. MONITORING RESPONSIBILITY OCSD Impact 3.1-2: The project could create a new source of nighttime light which could adversely affect neighboring land uses. MONITORING SCHEDULE Prior to construction activities. Measure (M-3.1-2) All permanent exterior lighting that is installed on the new project site shall be designed in accordance with the Mariner's Mile Strategic Vision and Design Framework. Motion sensors shall be installed to control the lights when the station is unmanned. B-1 IMPLEMENTATION PROCEDURE l. Design all permanent exterior lighting in accordance with the Mariner's Mile Strategic Vision and Design Framework. Include in contract specifications. 2. Include motion sensors in design to control the lights when the station is unmanned. Include in contract specifications. AIR QUALITY MONITORING AND REPORTING ACTIONS Monitor compliance with architectural contract specifications. Record compatibility with the Mariner's Mile Strategic Vision and Design Framework. Monitor post-construction compliance with contract specifications. ATTACHMENT B-MITIGATION AND MONITORING PROGRAM Em FOR ROCKY POINT PUMP STATION REPLACEMENT PROJECT MONITORING RESPONSIBILITY OCSD MONITORING SCHEDULE Prior to and during construction activities. Impact 3.2-1: Construction of the proposed project would emit criteria pollutants. Estimated daily average construction emissions would not exceed significance thresholds set by the SCAQMD. Measure (7.5-la in the PEIR) Dust Control. The District shall require the contractors to implement a dust abatement program that would reduce fugitive dust generation to lessen impacts to nearby sensitive receptors. The dust abatement program could include the following measures: • Water all active construction sites at least twice daily. • Cover all trucks having soil, sand, or other loose material or require all trucks to maintain at least two feet of free board. • Apply water as necessary, or apply non-toxic soil stabilizers on all unpaved access roads, parking areas and staging areas at construction sites. • Sweep daily (with water sweepers) all paved access roads, parking areas and staging areas at construction sites. B-2 ATIACHMENT 8-MITIGATION AND MONITORING PROGRAM EIR FOR ROCKY POINT PUMP STATION REPLACEMENT PROJECT • Sweep daily (with water sweepers) if visible soil material is carried into adjacent streets. • Water twice daily or apply non-toxic soil binders to exposed soil stockpiles. • Limit traffic speeds on unpaved roads to 15 mph. Measure (7.5-lb in the PEIR) Exhaust Emissions. Contractors shall maintain equipment engines in proper working order and operate construction equipment so as to minimize exhaust emissions. Such equipment shall not be operated during first or second stage smog alerts. Measure (7.5-lc in the PEIR) Truck Emissions Reductions. During construction, trucks and vehicles in loading or unloading queues shall be kept with their engines off, when not in use, to reduce vehicle emissions. Construction activities shall be discontinued during second-stage smog alerts. IMPLEMENTATION PROCEDURE I. Include requirements in contract specifications. 2. Conduct oversight of construction activities to ensure scope of work is carried out. MONITORING AND REPORTING ACTIONS Monitor compliance with construction contract specifications. Maintain record of construction/inspection oversight for administrative record. Impact 3.2-3: Excavation could release naturally occurring objectionable odors. MONITORING RESPONSIBILITY OCSD MONITORING SCHEDULE Prior to and during construction. Measure (M-3.2-1) Excavated soils that emit objectionable odors will be covered with plastic sheeting while stockpiled on site and will be removed from the construction areas within a few days of excavation. If odors emanating from the open excavation create nuisance conditions the excavation will be covered during non-working hours. B-3 IMPLEMENTATION PROCEDURE l. Include in contractor construction specifications. 2. Conduct oversight of construction activities to ensure scope of work is carried out. MONITORING AND REPORTING ACTIONS Monitor compliance with construction contract specifications. Maintain record of construction oversight for administrative record. AITACHMENT B-MITIGATION AND MONITORING PROGRAM Effi FOR ROCKY POINT PUMP STATION REPLACEMENT PROJECT MONITORING RESPONSIBILITY OCSD. MONITORING SCHEDULE Prior to and during construction. Measure (M-3.2-2) The underground gas collection system will be equipped with appropriate odor control systems to prevent long-term odor emissions. IMPLEMENTATION PROCEDURE l. Include requirements in contract specifications. Assess and implement odor control technology needs. 2. Conduct oversight of construction activities to ensure scope of work is carried out. CULTURAL RESOURCES MONITORING AND REPORTING ACTIONS Monitor compliance with construction contract specifications. Maintain record of construction oversight for administrative record. MONITORING RESPONSIBILITY OCSD MONITORING SCHEDULE Prior to, during, and after construction. Impact 3.4-1: Implementation of the proposed pump station could affect unknown or poorly recorded, potentially significant prehistoric and historic resources. B-4 AITACHMENT B-MITIGATION AND MONITORING PROGRAM EIR FOR ROCKY POINT PUMP STATION REPLACEMENT PROJECT Measure (M-3.4-1) Pursuant to CEQA Guidelines 15064.5 (f), "provisions for historical or unique archaeological resources accidentally discovered during construction" shall be instituted. Therefore, if cultural resources, such as chipped or ground stone, large quantities of shell, historic debris, building foundations, or human bone, are inadvertently discovered during any ground disturbing activities, the District shall instruct its contractors to halt construction activity within 50 feet of the find and immediately notify the District about the find. The District shall then retain a qualified archaeologist (per 36 CFR Part 61), who must assess the find and develop a mitigation plan that ensures that the resources are removed from the site or otherwise protected on site. The District shall not resume construction activity within 50 feet of the find until the find is removed or otherwise protected in accordance with the archaeologist's recommendation. IMPLEMENTATION PROCEDURE 1. Include requirements in contract specifications. 2. Conduct oversight of construction activities to ensure scope of work is carried out. MONITORING AND REPORTING ACTIONS Monitor compliance with construction contract specifications. Maintain record of construction oversight for administrative record. Impact 3.4-2: The proposed proj~ct may damage or degrade unidentified paleontological remains. MONITORING RESPONSIBILITY OCSD MONITORING SCHEDULE Prior to and during construction. Measure (M-3.4-2) In the event of an unanticipated discovery of a fossil during construction, the District shall instruct its contractors to halt construction activity within fifty 50 feet of the find and immediately notify the District about the find. The District shall then retain a qualified paleontologist, who must assess the find and develop a mitigation plan that ensures that the resources are removed from the site or otherwise protected on site. The District shall not resume construction activity within 50 feet of the find until the find is removed or otherwise protected in accordance with the paleontologist's recommendation. B-5 IMPLEMENTATION PROCEDURE I. Include requirements in contract specifications. 2. Conduct oversight of construction activities to ensure scope of work is carried out. GEOLOGY AND SOILS MONITORING AND REPORTING ACTIONS Monitor compliance with construction contract specifications. Maintain record of construction oversight for administrative record. ATTACHMENT B-MITIGATION AND MONITORING PROGRAM EIR FOR ROCKY POINT PUMP STATION REPLACEMENT PROJECT MONITORING RESPONSIBILITY OCSD MONITORING SCHEDULE Prior to and during construction. Impact 3.5-1: The proposed project could expose structures to potential adverse effects due to earthquake-induced landslides. In addition, construction activities could weaken the slope behind the site and induce a slope failure. Measure (M-3.5-1) The District shall incorporate recommendations from the geotechnical investigation and slope stability analysis into the design and construction of the proposed facilities. These recommendations shall include, but are not limited to, the following measures taken from the geotechnical report: • •Shoring should be checked frequently for lateral and vertical movement. lflarge deflections (greater than 0.5 percent of the shoring height) are noted, the bracing systems should be checked and strengthened as needed. If tension cracks occur in the ground surface adjacent to the shoring, the cracks should be monitored and sealed to prevent water infiltration and the significance of the cracks should be evaluated immediately. • •Removal of the temporary shoring system should be performed carefully to prevent vibration-induced soil settlement. • •Permanent compacted fill slopes should be no steeper than 2H:IV and should be covered with vegetation or paved to reduce surface erosion. B-6 IMPLEMENTATION PROCEDURE I. Incorporate geotechnical investigation and slope stability recommendationsin design and construction contract specifications. 2. Conduct oversight of construction activities to ensure scope of work is carried out. MONITORING AND REPORTING ACTIONS Monitor compliance with construction contract specifications. Maintain record of construction oversight for administrative record. ATIACHMENT B-MITIGATION AND MONITORING PROGRAM EIR FOR ROCKY POINT PUMP ST A TION REPLACEMENT PROJECT MONITORING RESPONSIBILITY OCSD. MONITORING SCHEDULE Prior to final design Prior to and during construction. Impact 3.5-2: The proposed project could expose structures to potential adverse effects due to strong ground shaking during an earthquake. Measure (M-3.5-2) The District shall design the proposed facilities for the seismic design parameters identified in the geotechnical analysis in accordance with applicable requirements of the UBC. IMPLEMENTATION PROCEDURE l. Include requirements in contract specifications. 2. Conduct oversight of construction activities to ensure scope of work is carried out. MONITORING AND REPORTING ACTIONS Monitor compliance with construction contract specifications. Maintain record of construction oversight for administrative record. MONITORING RESPONSIBILITY OCSD Impact 3.5-6: The proposed project could be underlain by corrosive soils that could compromise the integrity of buried structures. B-7 MONITORING SCHEDULE Prior to construction. A TI ACHMENT 8-MITIGATION AND MONITORING PROGRAM EIR FOR ROCKY POINT PUMP STATION REPLACEMENT PROJECT Measure (M-3.5-3) The District shall consult a corrosion specialist to determine suitable materials or construction methods that are appropriate for corrosive soil conditions on the site in accordance with applicable UBC standards. The District shall utilize recommended materials to ensure adequate protection of underground piping. IMPLEMENTATION PROCEDURE MONITORING AND REPORTING ACTIONS I. Retain a corrosion specialist to determine Maintain record of consultation for suitable materials or construction methods that administrative record. are appropriate for corrosive soil conditions on the site in accordance with applicable UBC standards. 2. Include recommended materials in contractor specification. 3. Conduct oversight of construction activities to ensure scope of work is carried out. Monitor compliance with construction contract specifications. Maintain record of construction oversight for administrative record. HAZARDS AND HAZARDOUS MATERIALS MONITORING RESPONSIBILITY OCSD Impact 3.6-1: Soils and groundwater containing petroleum hydrocarbons could be encountered during excavation activities. MONITORING SCHEDULE Prior to and during construction. Measure (M-3.6-1) The District shall collect soil samples from excavated soil to adequately characterize levels of petroleum hydrocarbons in the soil. The samples shall be analyzed for Total Petroleum Hyrocarbons (TPH). If sample results exceed 1,000 mg/kg TPH, the soil will be disposed of as petroleum-contaminated waste in accordance with applicable regulations. B-8 IMPLEMENTATION PROCEDURE I. Include requirements in contract specifications. 2. Conduct oversight of construction activities to ensure scope of work is carried out. MONITORING AND REPORTING ACTIONS Monitor compliance with construction contract specifications. Maintain record of construction oversight for administrative record. AITACHMENT 8-MITIGATION AND MONITORING PROGRAM EIR FOR ROCKY POINT PUMP STATION REPLACEMENT PROJECT MONITORING RESPONSIBILITY OCSD MONITORING SCHEDULE During construction. Measure (M-3.6-2) The District shall comply with source control requirements for discharging to the sanitary sewer. Groundwater samples will be collected and analyzed for TPH to ensure compliance with source control requirements for discharging to the sanitary sewer. IMPLEMENTATION PROCEDURE I. Include requirements in contract specifications. 2. Conduct oversight of construction activities to ensure scope of work is carried out. MONITORING AND REPORTING ACTIONS Monitor compliance with construction contract specifications. Maintain record of construction oversight for administrative record. MONITORING RESPONSIBILITY OCSD Impact 3.6-2: Construction activities could encounter hazardous levels of methane and hydrogen sulfide. MONITORING SCHEDULE During construction. Measure (M-3.6-3) During excavation activities, gas emissions will be continually monitored throughout the project area and around the perimeter using appropriate hand-held gas monitoring instruments such as an explosimeter and a hydrogen sulfide monitor. Hazardous and toxic gas reaction thresholds B-9 A IT ACHMENT B-MITIGATION AND MONITORING PROGRAM EIR FOR ROCKY POINT PUMP STATION REPLACEMENT PROJECT will be established so as to protect workers and the public from threat of explosion or toxicity. Reaction thresholds will be the gas concentration levels at which mitigation measures are implemented. The reaction threshold for explosive gases (i.e. methane) will be set at 25 percent of the LEL at ground surface. The reaction threshold for hydrogen sulfide will be 25 percent of the 8-hour time-weighted average (TWA) in the breathing zone. The District and/or their assigned contractor will be responsible for implementing excavation and emissions monitoring work in accordance with a SCAQMD Rule 1166 Permit and pursuant to requirements of the City of Newport Beach Fire Department and the Orange County Health Care Agency. Should reaction thresholds be reached at any time during excavation, work is to stop immediately and construction personnel shall exit the site. Work should not begin until gas monitoring verifies adequate ventilation of the excavation and the absence of explosive or toxic gases. The District will develop measures to reduce gas emissions that could include installing an active excavation gas extraction (ventilation) system during construction. IMPLEMENTATION PROCEDURE l. Incorporate requirements in contract specifications. 2. Conduct oversight of construction activities to ensure scope of work is carried out. MONITORING AND REPORTING ACTIONS Monitor compliance with construction contract specifications. Maintain record of construction oversight for administrative record. MONITORING RESPONSIBILITY OCSD MONITORING SCHEDULE Prior to and during construction. Measure (M-3.6-4) If gas emissions from the open excavation create a nuisance odor condition, open excavation areas will be covered during non-work hours. Excavated soils that emit objectionable odors or hazardous emissions will be covered with plastic sheeting while stockpiled on site and will be removed from the construction areas within a few days of excavation. The District will notify the Orange County Health Care Agency of remedial actions. 8-10 IMPLEMENTATION PROCEDURE 1. Incorporate requirements in contract specifications. 2. Conduct oversight of construction activities to ensure scope of work is carried out. MONITORING AND REPORTING ACTIONS Monitor compliance with construction contract specifications. Maintain record of construction oversight for administrative record. A TI ACHMENT 8-MITIGATION AND MONITORING PROGRAM Em FOR ROCKY POINT PUMP STATION REPLACEMENT PROJECT MONITORING RESPONSIBILITY OCSD MONITORING SCHEDULE Prior to and during construction. Measure (M-3.6-5) All equipment used on-site during excavation activities must be equipped with spark-arrestors. IMPLEMENTATION PROCEDURE I. Incorporate requirements in contract specifications. 2. Conduct oversight of construction activities to ensure scope of work is carried out. MONITORING AND REPORTING ACTIONS Monitor compliance with construction contract specifications. Maintain record of construction oversight for administrative record. MONITORING RESPONSIBILITY OCSD MONITORING SCHEDULE Prior to and during construction. Measure (M-3.6-6) During excavation activities, the work area, from ground surface to the water table, will be watered down to aid in suppressing odor and vapor emissions and thus reduce the risk of explosive haz.ard and/or toxic vapor exposure. B-11 IMPLEMENTATION PROCEDURE I. Incorporate requirements in contract specifications. 2. Conduct oversight of construction activities to ensure scope of work is carried out. MONITORING AND REPORTING ACTIONS Monitor compliance with construction contract specifications. Maintain record of construction oversight for administrative record. ATTACHMENT B-MITIGATION AND MONITORING PROGRAM Em FOR ROCKY POINT PUMP STATION REPLACEMENT PROJECT MONITORING RESPONSIBILITY OCSD MONITORING SCHEDULE During construction. Measure (M-3.6-7) The District shall notify property owners within a 500-foot radius of the site of the construction schedule. The notification will provide an explanation of what causes the naturally occurring odors and will provide a number to call to report objectionable odors. IMPLEMENTATION PROCEDURE l. Include requirements in contract specifications. 2. Notify property owners within a 500-foot radius of the site of the construction schedule. MONITORING AND REPORTING ACTIONS Monitor compliance and maintain record of notification and distribution list for administrative record. MONITORING RESPONSIBILITY OCSD MONITORING SCHEDULE Prior to and during construction. Measure (M-3.6-8) Prior to construction, the District shall prepare a Site Safety Plan for construction activities. The Site Safety Plan shall include at a minimum the following components: • Provide appropriate worker safety training for elevated H2S and methane conditions for all on-site workers to ensure compliance with EPA Hazardous Waste Operator training requirements where hazardous substances would be encountered B-12 • Conduct continuous monitoring for H2 S methane and volatile organics • Identify action thresholds • Identify Emergency procedures • Establish personal protective equipment requirements ATIACHMENT 8-MITIGATION AND MONITORING PROGRAM EIR FOR ROCKY POINT PUMP STATION REPLACEMENT PROJECT • Establish site access procedures and on site activity restrictions (e.g., no smoking, no welding, etc.) • Provide appropriate signage During construction, the following OSHA requirements will be included: • Legible Hydrogen Sulfide warning sign with yellow flag warning device present. • Keep a safe distance from dangerous locations if not working to decrease danger. • Pay attention to audible and visual alarm systems. • Follow the guidance of the operator representative. • Keep all safety equipment in adequate working order. • Store the equipment in accessible locations. • Provide an oxygen resuscitator onsite. • A properly calibrated, metered hydrogen sulfide detection instrument shall be kept onsite. B-13 IMPLEMENTATION PROCEDURE 1. Incorporate requirements in contract specifications. 2. Conduct oversight of construction activities to ensure scope of work is carried out. MONITORING AND REPORTING ACTIONS Monitor compliance with construction contract specifications. Maintain record of construction oversight for administrative record. ATTACHMENT B-MITIGATION AND MONITORING PROGRAM Em FOR ROCKY POINT PUMP STATION REPLACEMENT PROJECT MONITORING RESPONSIBILITY OCSD MONITORING SCHEDULE Prior to and during construction. Impact 3.6-3: Hazardous levels of methane and hydrogen sulfide could accumulate under the new pump station or seep into the wet well, causing explosion and toxicity hazards. Measure (M-3.6-9) The District shall ensure that all structures built on the subject site are designed for protection from gas accumulation and seepage, based on recommendation of a geotechnical engineer or other qualified consultant. IMPLEMENTATION PROCEDURE I. Include requirements in contract specifications. MONITORING AND REPORTING ACTIONS Monitor compliance with construction contract specifications. 2. Conduct oversight of construction activities Maintain record of construction and to ensure scope of work is carried out. inspection oversight for administrative record. B-14 MONITORING RESPONSIBILITY OCSD MONITORING SCHEDULE Prior to, during, and after construction. ATTACHMENT B-MITIGATION AND MONITORING PROGRAM EIR FOR ROCKY POINT PUMP STATION REPLACEMENT PROJECT Measure (M-3.6-10) The District shall ensure that buildings on the subject site will be constructed with passive or active gas collection systems under the foundations. Such a system typically consists of perforated PVC pipes laid horizontally in parallel lengths below the foundation. Riser type vents will be attached to light standards and building high points. Additionally, parking lots on the subject site will contain unpaved planter areas and vertical standpipes located at the end of each length of PVC. The standpipes will serve to vent any collected gas to the atmosphere. A qualified geotechnical firm or consultant will be retained to design such a system. IMPLEMENTATION PROCEDURE I. Incorporate requirements in contract specifications. 2. Conduct oversight of construction activities to ensure scope of work is carried out. MONITORING AND REPORTING ACTIONS Monitor compliance with construction contract specifications. Maintain record of construction oversight for administrative record. MONITORING RESPONSIBILITY OCSD MONITORING SCHEDULE Prior to, during, and after construction. Measure (M-3.6-11) The District shall ensure that all buildings on the subject site will be equipped with methane, hydrogen sulfide, and oxygen sensors. Such sensors will be installed in areas of likely accumulation, such as utility or other seldom used rooms. Sensors shall monitor on a continuous basis, and shall be tied into fire alarm systems for 24-hour surveillance. IMPLEMENTATION PROCEDURE MONITORING AND REPORTING ACTIONS B-15 MONITORING RESPONSIBILITY MONITORING SCHEDULE l. Include requirements in contract specifications. 2. Conduct oversight of construction activities to ensure scope of work is carried out. Monitor compliance with construction contract specifications. Maintain record of construction oversight for administrative record. ATTACHMENT B-MITIGATION AND MONITORING PROGRAM Effi FOR ROCKY POINT PUMP STATION REPLACEMENT PROJECT OCSD Prior to, during, and after construction. Measure (M-3.6-12) To avoid possible accumulation of gas in utility or other seldom used service or storage rooms, the District shall ensure that such rooms are serviced by the buildings central conditioning system (or an otherwise positive ventilation system that circulates and replaces the air in such rooms on a continuous basis). IMPLEMENTATION PROCEDURE l. Include requirements in contract specifications. 2. Conduct oversight of construction activities to ensure scope of work is carried out. MONITORING AND REPORTING ACTIONS Monitor compliance with construction contract specifications. Maintain record of construction oversight for administrative record. MONITORING RESPONSIBILITY OCSD Impact 3.6-4: Structures to be demolished/removed may contain lead paint and/or asbestos containing materials. MONITORING SCHEDULE Prior to, during, and after construction. Measure (M-3.6-13) Structures to be demolished or removed will be investigated for the presence oflead paint or asbestos containing material and proper precautions will be taken for safe removal and disposal of these materials prior to demolition activities. B-16 IMPLEMENTATION PROCEDURE 1. Include requirements in contract specifications. 2. Conduct oversight of construction activities to ensure scope of work is carried out. HYDROLOGY AND WATER QUALITY MONITORING AND REPORTING ACTIONS Monitor compliance with construction contract specifications. Maintain record of construction oversight for administrative record. Impact 3.7-1: Construction activities could adversely impact storm water runoff quality. ATIACHMENT B-MITIGATION AND MONITORING PROGRAM EIR FOR ROCKY POINT PUMP STATION REPLACEMENT PROJECT MONITORING RESPONSIBILITY OCSD MONITORING SCHEDULE Prior to demolition. Measure (M-7.7-la in the PEIR) Contractor BMPs. Construction contractors will implement Best Management Practices to prevent erosion and sedimentation to avoid significant adverse impacts to surface water quality including the following: • Sediment from areas disturbed by construction shall be retained on site using structural controls to the maximum extent possible. • Stockpiles of soil shall be properly contained to eliminate or reduce sediment transport from the site to the street, drainage or acilities or adjacent properties via runoff, vehicle tracking, or wind. • All construction contractor personnel are to be made aware of best management practices and good housekeeping measures • Contractors are responsible for good housekeeping practices such as collecting construction debris at the end of each day and properly disposing or detaining of the debris to prevent it from leaving the site. B-17 ATTACHMENT B-MITIGATION AND MONITORING PROGRAM EIR FOR ROCKY POINT PUMP STATION REPLACEMENT PROJECT Measure (M-7.7-lc in the PEIR) County of Orange Coordination. The District shall coordinate with the Orange County Public Facilities and Resources Department (Orange County Flood Control District) Planning Section to ensure compatibility and joint use feasibility with existing and future projects. Measure (M-7.7-ld in the PEIR) Waterway Protection. The District shall incorporate into contract specifications the requirement that the contractor(s) enforce strict on-sitehandling rules to keep construction and maintenance materials out of receiving waters. The rules will include measures to: • Store all reserve fuel supplies only within the confines of a designated construction staging area. • Refuel equipment only within designated construction staging area. • Regularly inspect all construction vehicles for leaks. Measure (M-7.7-le in the PEIR) Spill Prevention. The District shall incorporate into contract specifications the requirement that the contractor(s) prepare a Spill Prevention, Control, and Countermeasure Plan. The plan would include measures to be taken in the event of an accidental spill. Measure (M-7. 7-lf in the PEIR) Spill Containment. The District shall incorporate into contract specifications the requirement that the construction staging areas be designed to contain contaminants such as oil, grease, and fuel products so that they do not drain towards receiving waters or storm drain inlets. If heavy-duty construction equipment is stored overnight adjacent to potential receiving water, drip pans will be placed beneath the machinery engine block and hydrauUc systems. IMPLEMENTATION PROCEDURE I. Include requirements in contract specifications. 2. Conduct oversight of construction activities to ensure scope of work is carried out. MONITORING AND REPORTING ACTIONS Monitor compliance with construction contract specifications. Maintain record of construction oversight for administrative record. B-18 MONITORING RESPONSIBILITY OCSD MONITORING SCHEDULE Prior to and during construction. ATIACHMENT B-MITIGATION AND MONITORING PROGRAM Effi FOR ROCKY POINT PUMP STATION REPLACEMENT PROJECT Impact 3.7-2: The construction of the proposed project would require the disposal of groundwater during the dewatering process. Measure (M-3.7-1) Prior to dewatering activities, the District shall evaluate the potential water quality from dewatering at the site and impose source control restrictions if necessary based on the existing source control program. These restrictions could include pretreatment to remove some contaminants prior to discharging to the sanitary sewer. IMPLEMENTATION PROCEDURE I. Include requirements in contract specifications. 2. Conduct oversight of construction activities to ensure scope of work is carried out. NOISE MONITORING AND REPORTING ACTIONS Monitor compliance with construction contract specifications. Maintain record of construction oversight for administrative record. MONITORING RESPONSIBILITY OCSD Impact 3.9-1: Construction of the proposed project would generate noise that could create nuisance conditions at nearby land uses. MONITORING SCHEDULE Prior to and during construction. Measure (M-3.9-1) The District shall require and periodically inspect all equipment used during construction to ensure that the equipment is muffled and maintained in good operating condition. All internal combustion engine driven equipment shall be fitted with intake and exhaust mufflers that are in good condition. IMPLEMENTATION PROCEDURE MONITORING AND REPORTING ACTIONS 8-19 MONITORING RESPONSIBILITY MONITORING SCHEDULE I. Include requirements in contract specifications. 2. Conduct oversight of construction activities to ensure scope of work is carried out. Monitor compliance with construction contract specifications. Maintain record of construction oversight for administrative record. ATIACHMENT B-MITIGATION AND MONITORING PROGRAM EIR FOR ROCKY POINT PUMP STATION REPLACEMENT PROJECT OCSD Prior to and during construction. Measure (M-3.9-2) The District shall limit construction activity to the time periods set forth in the Newport Beach Municipal Code or between 7:00 a.m. and 6:30 p.m. on weekdays and 8:00 a.m. to 6:00 p.m. on Saturdays. Any nighttime or weekend construction activities would be subject to local permitting. IMPLEMENTATION PROCEDURE l. Include requirements in contract specifications. 2. Conduct oversight of construction activities to ensure scope of work is carried out. MONITORING AND REPORTING ACTIONS Monitor compliance with construction contract specifications. Maintain record of construction oversight for administrative record. MONITORING RESPONSIBILITY OCSD MONITORING SCHEDULE Prior to and during construction. Measure (M-3.9-3) Sensitive receptors within 100 feet of the Project construction activities shall be notified concerning the project timing and construction schedule, and shall be provided with a phone number to call with questions or complaints. IMPLEMENTATION PROCEDURE MONITORING AND REPORTING ACTIONS B-20 MONITORING RESPONSIBILITY MONITORING SCHEDULE 1. Include in contract specifications 2. Notify sensitive receptors within 100 feet of construction activities concerning project timing and construction schedule. TRAFFIC Maintain record of notification and distribution list for administrative record. ATTACHMENT B-MITIGATION AND MONITORING PROGRAM Em FOR ROCKY POINT PUMP STATION REPLACEMENT PROJECT OCSD Prior to and during construction. Impact 3.10-2: Implementation of the proposed project would require lane closures on West Coast Highway during construction activities which would temporarily reduce roadway capacity. Measure (M-3.10-1): Emergency Services Access. The District shall notify the Newport Beach Fire Department of construction activities. IMPLEMENTATION PROCEDURE 1. Incorporate in contract specifications. i 2. Notify Newport Beach Fire Department of construction activities concerning project timing and construction schedule. MONITORING AND REPORTING ACTIONS 1. Maintain record of communication, notification and distribution list for administrative record. MONITORING RESPONSIBILITY OCSD MONITORING SCHEDULE Prior to and during construction. Measure (M-3.10-2): Construction Notification. Two weeks prior to any proposed lane closure, the District shall post signage along West Coast Highway notifying motorists of upcoming lane closures to provide motorist with an opportunity to consider alternative routes to West Coast Highway. B-21 IMPLEMENTATION PROCEDURE I. Include in Traffic Management Plan. 2. Include requirements in contract specifications.. Conduct oversight of construction activities to ensure scope of work is carried out. MONITORING AND REPORTING ACTIONS Monitor compliance with construction contract specifications. Maintain record of construction oversight for administrative record, including post construction inspections. ATIACHMENT B-MITIGATION AND MONITORING PROGRAM Em FOR ROCKY POINT PUMP STATION REPLACEMENT PROJECT MONITORING RESPONSIBILITY OCSD MONITORING SCHEDULE Prior to and during construction. Measure (7.1-la in the PEIR) Construction Hours. The District will comply with local ordinances and restrict construction activities to daylight hours or as specified in encroachment permits. Measure (7.1-lb in the PEIR) Construction Notification. The District shall post notices or provide notification of construction activities to adjacent property owners (including homeowners and adjacent businesses) at least 72 hours in advance of construction and provide a contact and phone number of a District staff person to be contacted regarding questions or concerns about construction activity. Measure (7.1-lc in the PEIR) Emergency Service Access. The District shall coordinate with officials of adjacent fire stations, the Fountain Valley Regional Hospital, as well as other hospitals to ensure that 24-hour emergency access is available. Measure (7.1-ld in the PEIR) Covered Trenches. To minimize disruption of access to driveways to adjacent land uses, the District or its contractor(s) shall maintain steel-trench plates at the construction sites to restore access across open trenches. Construction trenches in streets will not be left open after work hours. Measure (7.1-le in the PEIR) Signage. The District shall provide temporary signage indicating that businesses are open. Measure (7.2-la in the PEIR) Traffic Control Plans. Traffic control plans will be prepared by a qualified professional engineer, prior to the construction phase of each sewer line project as implementation proceeds. 8-22 ATTACHMENT B-MITIGATION AND MONITORING PROGRAM Em FOR ROCKY POINT PUMP STATION REPLACEMENT PROJECT Measure (7.2-lb in the PEIR) Alternative Routes. Traffic control plans will consider the ability of alternative routes to carry additional traffic and identify the least disruptive hours ofconstruction site truck access routes, and the type and location of warning signs, lights and other traffic control devices. Consideration will be given to maintaining access to commercial parking lots, private driveways and sidewalks, bikeways and equestrian trails, to the greatest extent feasible. Measure (7.2-lc in the PEIR) Encroachment Permits. Encroachment permits for all work within public rights-of-way will be obtained from each involved agency prior to commencement of any construction. Agencies involved include the City of Newport Beach. Caltrans, the Orange County Planning and Development Services (PDS) (Development Services Section) and the various cities where work will occur. The District will comply with traffic control requirements, as identified by Caltrans and the affected local jurisdictions. Measure (7.2-ld in the PEIR): Traffic Control Plans. Traffic control plans will comply with the Work Area Traffic Control Handbook and/or the Manual of Traffic Controls as determined by the City of Newport Beach, to minimize any traffic and pedestrian hazards that exist during project construction. Measure (7.2-le in the PEIR) Traffic disruption Avoidance. The construction technique for the implementation of the proposed sewer lines, such as tunneling, cut and cover with partial street closure, or cut and cover with full street closure, shall include consideration of the ability of the roadway system, both the street in question and alternate routes, to carry existing traffic volumes during project construction. If necessary, adjacent parallel streets will be selected as alternate alignments for the proposed sewer improvements. As required by the City of Newport Beach, trunk sewers will be jacked under select major intersections, to avoid traffic disruption and congestion. Measure (7.2-lf in the PEIR) Street Closure. Public streets will generally be kept operational during construction, particularly in the morning and evening peak hours of traffic. Lane closures will be minimized during peak traffic hours. Measure (7.2-lg in the PEIR): Roadway Restoration. Public roadways will be restored to a condition mutually agreed to between the District and the City of Newport Beach prior to construction. Measure (7.2-lh in the PEIR): Sewer Construction Coordination. The Districts will attempt to schedule construction of relief facilities to occur jointly with other public works projects already planned in the affected locations, through careful coordination with the City of Newport Beach. B-23 AITACHMENT B-MITIGATION AND MONITORING PROGRAM EIR FOR ROCKY POINT PUMP STATION REPLACEMENT PROJECT Measure (7.2-li in the PEIR) Emergency Services. Emergency service purveyors will be contacted and consulted to preclude the creation of unnecessary traffic bottlenecks that will seriously impede response times. Additionally, measures to provide an adequate level of access to private properties shall be maintained to allow delivery of emergency services. Measure (7 .2-lj in the PEIR) OCTA Coordination. OCT A will be contacted when construction affects roadways that are part of the OCT A bus network. Measure (7.2-11 in the PEIR) Trails & Bikeways. Short term construction impacts and closures to locally designated trails and bikeways, as found in the County's Master Plan of Regional Riding and Hiking Trails (RRHT) and Commuter Bikeways Strategic Plan (CBSP), shall be mitigated with detours, signage, flagmen and reconstruction as appropriate. Long term impacts such as permanent trail link closures should be mitigated with provisions for new rights-of-way for trails and/or bikeways and reconstruction. Measure (7.2-lm in the PEIR): County of Orange Coordination. Any construction plans that could potentially impact regional riding and hiking trails or Class I bikeways shall be submitted to the City of Newport Beach, County's Division of Harbors, Beaches and Parks!frails Planning and Implementation for review and approval prior to project construction activities. Measure (7.2-ln in the PEIR) Trails Restoration. Regional Riding and Hiking Trails and Class I Bikeways impacted by construction activities shall be restored to their original condition after project construction. IMPLEMENTATION PROCEDURE l. Include requirements in contract specifications. 2. Conduct oversight of construction activities to ensure scope of work is carried out. MONITORING AND REPORTING ACTIONS Monitor compliance with construction contract specifications. Maintain record of construction oversight for administrative record. B-24 MONITORING RESPONSIBILITY OCSD MONITORING SCHEDULE Prior to and during construction. ATTACHMENT B-MITIGATION AND MONITORING PROGRAM EIR FOR ROCKY POINT PUMP STATION REPLACEMENT PROJECT Measure (M-3.10-3): Construction Schedule. The District shall not perform any construction work within the West Coast Highway right-of-way that requires lane closures between Memorial Day and Labor Day of any given calendar year or during the week of the Boat Parade, which is typically one week long during mid-December. IMPLEMENTATION PROCEDURE I. Incorporate requirements in contract specifications. 2. Conduct oversight of construction activities to ensure scope of work is carried out. MONITORING AND REPORTING ACTIONS Monitor compliance with construction contract specifications. Maintain record of construction oversight for administrative record. MONITORING RESPONSIBILITY OCSD MONITORING SCHEDULE Prior to and during construction. Impact 3.10-3: Implementation of the proposed project would restrict access to businesses from West Coast Highway during construction. Measure (7.1-la in the PEIR) Construction Hours. The District will comply with local ordinances and restrict construction activities to daylight hours or as specified in encroachment permits. Measure (7.1-lb in the PEIR) Construction Notification. The District shall post notices or provide notification of construction activities to adjacent property owners (including homeowners and adjacent businesses) at least 72 hours in advance of construction and provide a contact and phone number of a District staff person to be contacted regarding questions or concerns about construction activity. Measure (7.1-lc in the PEIR) Emergency Service Access. The District shall coordinate with officials of adjacent fire stations, the Fountain Valley Regional Hospital, as well as other hospitals to ensure that 24-hour emergency access is available. Measure (7.1-ld in the PEIR) Covered Trenches. To minimize disruption of access to driveways to adjacent land uses, the District or its contractor(s) shall maintain steel-trench plates at the construction sites to restore access across open trenches. Construction trenches in streets will not be left open after work hours. B-25 AITACHMENT B-MITIGATION AND MONITORING PROGRAM EIR FOR ROCKY POINT PUMP STATION REPLACEMENT PROJECT Measure (7.1-le in the PEIR) Signage. The District shall provide temporary signage indicating that businesses are open. Measure (7.2-la in the PEIR) Traffic Control Plans. Traffic control plans will be prepared by a qualified professional engineer, prior to the construction phase of each sewer line project as implementation proceeds. Measure (7.2-lb in the PEIR) Alternative Routes. Traffic control plans will consider the ability of alternative routes to carry additional traffic and identify the least disruptive hours of construction site truck access routes, and the type and location of warning signs, lights and other traffic control devices. Consideration will be given to maintaining access to commercial parking lots, private driveways and sidewalks, bikeways and equestrian trails, to the greatest extent feasible. Measure (7.2-lc in the PEIR): Encroachment Permits. Encroachment permits for all work within public rights-of-way will be obtained from each involved agency prior to commencement of any construction. Agencies involved include the City of Newport Beach, Caltrans, the Orange County Planning and Development Services (PDS) (Development Services Section) and the various cities where work will occur. The District will comply with traffic control requirements, as identified by Cal trans and the affected local jurisdictions. Measure (7.2-ld in the PEIR): Traffic Control Plans. Traffic control plans will comply with the Work Area Traffic Control Handbook and/or the Manual of Traffic Controls as determined by the City ofNewport Beach, to minimize any traffic and pedestrian hazards that exist during project construction. Measure (7.2-le in the PEIR) Traffic disruption Avoidance. The construction technique for the implementation of the proposed sewer lines, such as tunneling, cut and cover with partial street closure, or cut and cover with full street closure, shall include consideration of the ability of the roadway system, both the street in question and alternate routes, to carry existing traffic volumes during project construction. If necessary, adjacent parallel streets will be selected as alternate alignments for the proposed sewer improvements. As required by the City of Newport Beach, trunk sewers will be jacked under select major intersections, to avoid traffic disruption and congestion. Measure (7.2-lfin the PEIR) Street closure. Public streets will generally be kept operational during construction, particularly in the morning and evening peak hours of traffic. Lane closures will be minimized during peak traffic hours. Measure (7.2-lg in the PEIR): Roadway Restoration. Public roadways will be restored to a condition mutually agreed to between the District and the City of Newport Beach prior to construction. B-26 AITACHMENT B-MITIGATION AND MONITORING PROGRAM Em FOR ROCKY POINT PUMP STATION REPLACEMENT PROJECT Measure (7.2-lh in the PEIR): Sewer Construction Coordination. The Districts will attempt to schedule construction of relief facilities to occur jointly with other public works projects already planned in the affected locations, through careful coordination with the City of Newport Beach. Measure (7.2-li in the PEIR) Emergency Services. Emergency service purveyors will be contacted and consulted to preclude the creation of unnecessary traffic bottlenecks that will seriously impede response times. Additionally, measures to provide an adequate level of access to private properties shall be maintained to allow delivery of emergency services. Measure (7.2-lj in the PEIR) OCTA Coordination. OCTA will be contacted when construction affects roadways that are part of the OCTA bus network. Measure (7.2-11 in the PEIR) Trails & Bikeways. Short term construction impacts and closures to locally designated trails and bikeways, as found in the County's Master Plan of Regional Riding and Hiking Trails (RRHT) and Commuter Bikeways Strategic Plan (CBSP), shall be mitigated with detours, signage, flagmen and reconstruction as appropriate. Long term impacts such as permanent trail link closures should be mitigated with provisions for new rights-of-way for trails and/or bikeways and reconstruction. Measure (7.2-lm in the PEIR): County of Orange Coordination. Any construction plans that could potentially impact regional riding and hiking trails or Class I bikeways shall be submitted to the City of Newport Beach, County's Division of Harbors, Beaches and Parks!frails Planning and Implementation for review and approval prior to project construction activities. Measure (7.2-ln in the PEIR) Trail Restoration. Regional Riding and Hiking Trails and Class I Bikeways impacted by construction activities shall be restored to their original condition after project construction. IMPLEMENTATION PROCEDURE MONITORING AND REPORTING ACTIONS B-27 MONITORING RESPONSIBILITY MONITORING SCHEDULE _, l. Include requirements in contract specifications. 2. Conduct oversight of construction activities to ensure scope of work is carried out. Monitor compliance with construction contract specifications. Maintain record of construction oversight for administrative record. B-28 ATIACHMENT B-MITIGATION AND MONITORING PROGRAM EIR FOR ROCKY POINT PUMP STATION REPLACEMENT PROJECT OCSD Prior to and during construction.