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Y <br /> Page 27 <br /> i• <br /> ENVIRONMENTAL IMPACT MITIGATION MEASURE LEVEL OF <br /> SIGNIFICANCE <br /> AFTER <br /> r MITIGATION <br /> J, GEOLOGY,SOILS AND <br /> SEISMICITY <br /> F _ . <br /> J.1 The existing topography would be None Required LS <br /> permanently altered,with the landfill areas A" <br /> F reaching a maximum elevation of.150 feet <br /> MSL and the borrow area to the north <br /> r about 9 feet MSL at closure. (LESS THAN <br /> SIGNIFICANT) <br /> J.2. Excavation and landfilling on the None Required LS <br /> project site would permanently convert <br /> prime agricultural land to non-agricultural <br /> use. (LESS THAN SIGNIFICANT) <br /> F <br /> J.3. Over the life of the project,soils on (a)Should additional cover material be LS <br /> the project site may be determined to be of needed, alternative daily covers, approved <br /> inadequate supply and/or quality for use as by the CTWMB,shall be examined and <br /> daily cover,and soil import could be used. A demonstration project has already <br /> required. (SIGNIFICANT) been authorized.,. <br /> ` JA Seismic shaking could disturb slope (a) The project sponsor will comply with LS <br /> stability,drainage features,linear integrity, the requirements of the California Code of <br /> and settlement of the landfill,over the life Regulations(CCR) Title 27, The CIWMB <br /> of the project or after closure. will receive all documentation relating to <br /> (SIGNIFICANT) slope and foundation studies and design. <br /> IC HYDROLOGY, <br /> GEOHYDROLOGY,AND WATER ¢ <br /> QUALITY <br /> F . <br /> K.I Reconfiguration and relocation of the None Required LS } <br /> North Branch of the South Fork of Little <br /> Johns Creek could alter the flow regime <br /> and affect flow velocity,erosion and <br /> sedimentation on the site or in the adjacent <br /> upstream or downstream reach of the Q <br /> i stream.(LESS THAN SIGNIFICANT) <br /> i <br /> K.2. The project would relocate the (a)The project includes channel LS <br /> Ell existing'100-year floodplain,and if reconfiguration and localized flood <br /> inadequate replacement storage volume or protection berms to isolate the landfill <br /> routing of floodflows occunvd,the project surfaces from floodwaters. <br /> could contribute to upstream or , <br /> downstream flooding ore se'the landfill The project design also includes <br /> GRAS=ENVIRONMENTAL CONSULTING , <br /> t . <br />