31A - 1701 E. FAIRHAVEN AVE. - Laserfiche WebLink

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Basin Plan and Drainage Area Management Plan through the City's Local Implementation Plan. The project site drains to the west and east. Westerly from the project site, the storm water flows would drain through a series of underground storm drains along Lincoln Avenue, Santa Clara Avenue and Grand Avenue to the Santa Ana Open Storm Drain Channel before ultimately draining into the Lower Newport Back Bay. Easterly from the project site, the storm water flows would drain through an underground storm drain along Cabrillo Park Drive before ultimately draining into the Lower Newport Back Bay. The Santa Ana Regional Water Quality Control Board has identified Lower Newport Back Bay as impaired water body. The primary concern for water quality pollutants associated with the operation of the proposed project would be from urban runoff. Urban runoff is defined as runoff that occurs during periods that are not usually associated with rainfall, and are most commonly produced from landscaping irrigation, leaking pipes, and water used to wash off surfaces tributary to the street. Since urban runoff usually originates in the street, they commonly contain many common pollutants found in streets such as oil/grease, metals and sediment. Additionally, fertilizers and other chemicals used for the maintenance of landscaped areas on the cemetery could be contained in the urban runoff. These pollutants could have an adverse water quality impacts on downstream receiving waters. During construction operations there is the potential that surface water runoff could be degraded, if conveyed into the local storm drain system, potential adverse water quality impacts could occur to downstream receiving waters. To minimize potential construction related water quality impacts, long-term operational impacts and cumulative water quality impacts associated with the proposed project, the following mitigation measures shall be implemented. 19 31A~34