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o Continuous flow deflection/separation systems <br />o Storm drain inserts <br />o Media filtration <br />o Foundation planting <br />o Catch basin screens <br />o Normal flow storage/separation systems <br />o Clarifiers <br />o Filtration systems <br />o Primary waste water treatment systems <br />o Dry Wells <br />o Cistern <br />b. A WQMP shall be prepared, maintained, and updated as needed to satisfy the requirements <br />of the adopted NPDES program. The plan shall incorporate water quality measures for all <br />improved phases of the project. (Impact 4.6-1 and Impact 4.6-3) <br />MM4.6-2 Prior to issuance of grading permits for future development projects in the Transit <br />Zoning Code (SD 84A and SD 8413) area, applicants shall submit site -specific Hydrology and <br />Hydraulic Studies to the Public Works Department for review and approval. If existing facilities <br />are not adequate to handle runoff that may be generated by the proposed development, then <br />the applicant shall propose feasible remedies to assure that adequate drainage facilities will be <br />available prior to issuance of occupancy permits. The applicant may propose storm drain <br />improvements to be constructed in order to meet project needs. If necessary storm drain <br />upgrades cannot be implemented prior to issuance of occupancy permits, on site detention <br />facilities or other methods acceptable to the City shall be included with new development <br />projects to ensure that post -construction runoff does not exceed pre -development quantities. <br />(Impact 4.6-4) <br />MM4.6-3 During the design of individual projects, applicants shall minimize impervious area by <br />incorporating landscaped areas over substantial portions of a proposed project area. <br />Furthermore, impervious areas shall be directly connected to landscaped areas or bioretention <br />facilities to promote filtration and infiltration of stormwater. (Impact 4.6-4) <br />MM4.6-4 During the design of individual projects, applicants shall control structural source <br />through storm drain stenciling and signage, coverage of trash area to minimize direct <br />precipitation, efficient irrigation to minimize runoff into stormwater conveyance system, slope <br />and channel protection to decrease potentials for erosions of slopes, and use of deep-rooted, <br />drought tolerant plant species for erosion control. (Impact 4.6-4) <br />Project Analysis and Conclusion <br />The City determined that impacts related to within a 100-year flood hazard area, flood <br />inundation area, inundation from the Prado Dam, a seiche, tsunami, or mudflow would have no <br />impacts (DEIR Section 4.6-3). Impacts related to interference with groundwater recharge <br />(Impact 4.5-1), alteration to existing drainage patterns (Impact 4.6-3) and increased <br />downstream flooding (Impact 4.6-4) were less than significant with the implementation of <br />mitigation measures. <br />The proposed adoption of the text regulations identified in Table 1 — Current and Proposed Text <br />Regulations would not require preparation of specific development projects, introduce new land <br />uses nor increase the intensity the existing uses. The new regulations would require liquid or <br />January 2025 35 Environmental Analysis <br />