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Because the expansion area will be paved or covered by structures there will be a slight <br /> decrease in groundwater infiltration in the expansion area. Additionally, the storm water <br /> runoff generated by the proposed expansion will be increased due to the paved or covered <br /> areas. The expansion of the project will create additional wastewater from wash facilities <br /> and leachate from water that has contacted the refuse. <br /> An extension of the present system for the control of storm runoff and wastewater will <br /> control the additional volume. Clean storm waters and leachate/washwaters are handled <br /> through a combination Sewer/Storm system equiped with catch basins to provide ready <br /> removal of sanitary and storm waters in the 2.6 acre parcel at the north of the property. <br /> This system can be switched to either divert all waters into the sanitary sewer system or <br /> to separate the waters into the sanitary or storm sewer systems. The remaining site is <br /> drained by the use of separate storm and sanitary systems which are not combined. In <br /> this area berms are construced to insure that clean water is diverted to the storm system <br /> and the wastewater is drained to the sanitary system. The 5.55 acre expansion area is <br /> expected to also be drained by the use of two separate systems for storm and <br /> leachate/washwater drainage. <br /> Existing storm/sanitarysewers stems have been analyzed for flow and composition <br /> characteristics to determine connection and monthly service charges. An evaluation of <br /> water characteristics for the expansion area will be made and appropriate connection and <br /> monthly service fees will be determined. <br /> As indicated on Figure 8 the site is not located within the designated flood plain of the <br /> Mokelumne River. However, if an anomalous flooding event were to ocurr, the facility <br /> is paved and fenced and no impacts to public health are be forseen due to surface water <br /> contamination. <br /> YY Maybe NQ <br /> 4. Plant Life. Will the proposal result in: <br /> a. Change in the diversity of <br /> skies, or number of any <br /> species of plants (including <br /> trees, shrubs, grass, crops, <br /> and aquatic plants)? X <br /> b. Reduction of the numbers of <br /> any unique, rare or endangered <br /> species of plants? X <br /> C. Introduction of new species <br /> of plants into an area, or <br /> in a barrier to the normal <br /> replenishment of existing <br /> species? X <br /> 27 <br />