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HARBOR BLVD. MIXED USE TRANSIT CORRIDOR PLAN FINAL FIR <br />CITY OF SANTA ANA <br />5. Environmental Analysis <br />HYDROLOGY AND WATER QUALITY <br />Adherence to the BMPs in the SWPPP would reduce, prevent, minimize, and /or treat pollutants and prevent <br />degradation of downstream receiving waters. BMPs identified in the SWPPP would reduce or avoid <br />contamination of stormwater with sediment and would also reduce or avoid contamination with other <br />pollutants such as trash and debris; oil, grease, fuels, and other toxic chemicals; pesticides; and nutrients. <br />Therefore, water quality and waste - discharge impacts from grading and construction activities associated with <br />individual development projects that would be accommodated by the Harbor Corridor Plan would not occur. <br />Impact 5.7 -5: Operation of individual development projects would reduce or avoid contamination of <br />stormwater through implementation of the Water Quality Management Plan consistent with <br />the MS4 Permit. [Thresholds HYD -1 (part) and HYD -6 (part)] <br />ImpactAnalysis: <br />Anticipated and Potential Pollutants <br />Proposed development and redevelopment land use types in the project area include single - family attached, <br />multifamily, and single - family detached residential uses; retail; office; restaurant; entertainment; and <br />neighborhood serving commercial land uses. Anticipated and potential pollutants of these uses are listed in <br />Table 5.7 -6. <br />Table 5.7 -6 Anticipated and Potential Pollutants Generated by Land Use Type <br />Notes: X = anticipated; P = potential <br />Potential pollutant if landscaping is onsite <br />3 Potential pollutant if the project includes uncovered parking areas <br />Including solvents <br />^ The commemialAndustrial land use category in the source table is speci5c to developments over 100,000 square feet in building area. Such developments would not <br />be permitted under the Harbor Corridor Plan. While the soak of new permitted commercial land uses under the Harbor Corridor Plan would be smaller than that <br />evaluated in the table, the types of anticipated and potential pollutants would be generally similar to those listed above. <br />5 The project would not permit parking lots as stand -alone land uses, but would permit parlang lots accessory to other land uses within individual project sites. <br />Pollutants of Concern <br />Pollutants of concern are anticipated or potential pollutants that are listed by EPA as impairing receiving <br />water bodies. <br />Page 5.7 -24 PlaceWorkr <br />C <br />rn <br />vm <br />o <br />c <br />o <br />E <br />m <br />� <br />'r^ <br />E <br />l <br />Z <br />d <br />N <br />H <br />3 <br />0 <br />Land Use <br />o <br />Detached Residential <br />X <br />X <br />X <br />X <br />X <br />X <br />X <br />Attached Residential <br />X <br />X <br />X <br />X <br />PF) <br />P(2) <br />Commercial /Industrial^ <br />Pty) <br />Pty <br />P(4 <br />PI) <br />X <br />pn <br />X <br />Restaurants <br />X <br />X <br />X <br />X <br />Parking Lots5 <br />X <br />PF) <br />P(4 <br />PI) <br />X <br />P(3) <br />X <br />Notes: X = anticipated; P = potential <br />Potential pollutant if landscaping is onsite <br />3 Potential pollutant if the project includes uncovered parking areas <br />Including solvents <br />^ The commemialAndustrial land use category in the source table is speci5c to developments over 100,000 square feet in building area. Such developments would not <br />be permitted under the Harbor Corridor Plan. While the soak of new permitted commercial land uses under the Harbor Corridor Plan would be smaller than that <br />evaluated in the table, the types of anticipated and potential pollutants would be generally similar to those listed above. <br />5 The project would not permit parking lots as stand -alone land uses, but would permit parlang lots accessory to other land uses within individual project sites. <br />Pollutants of Concern <br />Pollutants of concern are anticipated or potential pollutants that are listed by EPA as impairing receiving <br />water bodies. <br />Page 5.7 -24 PlaceWorkr <br />