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LSA <br />April 7, 2020 <br />Katerina Galacatos <br />South Branch Chief <br />U.S. Army Corps of Engineers <br />450 Golden Gate Avenue, 4th Floor <br />San Francisco, California 94102 <br />Subject: Request for Verification of Jurisdictional Delineation, Water Pollution Control Plant <br />Project Study Site, City of San Leandro, Alameda County, California <br />Dear Ms. Galacatos: <br />CARLSBAD <br />FRESNO <br />IRVINE <br />LOS ANGELES <br />PALM SPRINGS <br />POINT RICHMOND <br />RIVERSIDE <br />ROSEVILLE <br />SAN LUIS OBISPO <br />On behalf of the City of San Leandro Public Works Department (City), LSA is requesting verification <br />of the extent of U.S. Army Corps of Engineers (Corps) jurisdiction under Section 404 of the Clean <br />Water Act and Section 10 of the Rivers and Harbors Act on the Water Pollution Control Plant Project <br />Study Site in the City of San Leandro, Alameda County. This letter reports the results of a delineation <br />performed by LSA of the potential extent of waters of the United States, including wetlands, on the <br />study site. <br />The City proposes to decommission a constructed wastewater treatment pond and create an <br />enhanced denitrification treatment wetland composed of both open water wetland areas and <br />upland transition, wet -meadow ecotone habitat. The wetland habitat will be enhanced by planting <br />native riparian and wetland plants. <br />SITE DESCRIPTION <br />The approximate 11.8-acre Project Study Site is located within the northern boundary of the City of <br />San Leandro, east of the Oakland International Airport and west of Interstate 880, at the western <br />end of Davis Street, and with a site address of 3000 Davis Street. The Project Study Site is roughly <br />bounded on the north by a segment of the Bay Trail and on the south by an estuary extension of the <br />San Francisco Bay and comprises portions of Alameda County Assessor's Parcel 01-257-103. The site <br />is situated within un-sectioned lands in Township 2 South, Range 3 West on the San Leandro, <br />California 7.5-minute U.S. Geological Survey quadrangle, and is centered at 37.7145° North Latitude <br />and 122.1980° West Longitude. Figures 1 and 2 (attached) depict the regional location and study site <br />location, respectively. <br />The City of San Leandro (City) owns and operates a wastewater treatment facility located at 3000 <br />Davis Street, which is called the Water Pollution Control Plant (WPCP). The WPCP was originally <br />constructed in 1938, and several expansions and modifications have occurred since then. The WPCP <br />is designed to treat 7.6 million gallons per day (MGD) (average dry weather flow) from residential <br />and commercial properties and discharges the effluent into the San Francisco Bay via the East Bay <br />Dischargers Authority (EBDA) discharge facility. Average dry weather flow is about 5 MGD. <br />157 Park Place, Pt. Richmond, California 94801 510.236.6810 www.Isa.net <br />