55A - RESOLUTION CERTIFYING EIR SAN LORENZO SEWER LIFT STATION

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Exhibit 3 0 SAN LORENZO SEWER LIFT STATION ■EJ ENVIRONMENTAL IMPACT REPORT S.0 ExECUnyE SUMMARY • To construct a new sewer lift station (the San Lorenzo Lift Station) near the intersection of South Bristol Street and West Segerstrom Avenue to replace an existing lift station that has exceeded its design life (the Segerstrom Lift Station). • To install modern lift station equipment and associated wastewater conveyance infrastructure to �..:ao system edundaneies in alder to reduce the potential of a sewer spill or equipment failure. • To provide a lift station facility in which electrical components of the facility are housed above ground so as to preclude the potential for electrical failure during peak storm events (due to flooding). • To construct a lift station facility that provides sufficient access space for maintenance of the lift station facility. • To avoid detrimental effects to existing businesses during construction and long, -term operation of the lift station facility to the extent feasible. • To improve safety for both motorists and City workers by providing for an above - ground lift station facility located outside of existing roadway rights -of -way. • To minimize odor - related nuisances to land uses in close proximity to the new sewer lift station through the installation of a gravity odor control system. • To install landscape and hardscape improvements in areas that will be disturbed by lift station and associated subsurface infrastructure construction. • To safely demolish and abandon the existing Segerstrom Lift Station in accordance with applicable federal, state, and local regulations and standards. 5.2.3 PROJECT DESCRIPTION SUMMARY The City of Santa Ana is proposing to construct and operate a new sewer lift station (the San Lorenzo Lift Station) to be located at the end of the western terminus of San Lorenzo Avenue, immediately north of West Segerstrom Avenue and south of an existing alley. The proposed sewer lift station would replace the existing Segerstrom Lift Station, which is located beneath South Bristol Street approximately 7$0 -420 linear feet to the west of the proposed new lift station site. The existing Segerstrom Lift Station has exceeded its design life and would be demolished and abandoned once the proposed San Lorenzo Lift Station is operational. The proposed lift station would be housed within an approximate 8 -foot by 30 -foot block structure, measuring approximately 17 feet in height. The structure's exterior walls would be tan in color and the roof material would be composed of brown metal roofing with a simulated Spanish tile pattern. Access into the interior of the structure would be provided via two doors on the southern face of the structure and two doors on the eastern face of the structure. Exterior lighting would be limited to security lighting above the entrance doors. The following facilities would be installed within or beneath the block structure: electrical panels and control center; a below - ground wet well of sufficient size and depth to prevent back up and surcharging of the upstream sewer mains; a below - ground dry well to house the pumps, motors, associated equipment and appurtenances; a gravity odor control system; and a stairway access into the dry well. In order to construct the San Lorenzo Lift station in its proposed location, a temporary construction easement would be placed over an approximately 49&-465 square- foot s.f.) area west of the western terminus of San Lorenzo Avenue and immediately neFth of West Sege - str-o. , n ..entieto the west and north of the proposed lift station facility. It should be noted that the 465 s.f. temporary construction easement would be in addition to PAGE S -3 55A -103