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The Mehrten formation overlies the valley Springs <br /> formation r•s a fluviatile deposit and consists <br /> chiefly of andesitic detritus with smaller amounts <br /> of sandstone, siltstone, and conglomerate. <br /> There has been no recent seismic activity in the <br /> in=c-c,iate vicinity. Thin entire state; is classified <br /> as susceptible to earthquake Camage and is designated <br /> as gene 3. <br /> Thirteen miles to the east of the project and running <br /> north and south is the Bear Mountain Fault. ,»:���► <br /> miles east of the project is the Melcnes Diult Zcnn. <br /> rlei.ther fault is regarded as pcsing a t,hr.cat of <br /> property damage in San Joaquin County. <br /> are relatively inactive with shocks felt <br /> between State Route 26 and Tobacco Read with a rig- <br /> n i.tude of 5+ (Richter Scale) and in 19410 shanks of a <br /> na(-rnitude 4+ centered in the vicinity of rrcalon- <br /> Bea.�.ota Road north of Milton. if an earth7un c of <br /> mac-nit:ude 6 or stronger were to occur, Froporty damage <br /> at the project site would be limited to structural <br /> & c,c to conveyors, t C support stru-:tuJrC'3 Of ab^.re- <br /> ground equipment such as the batch plant, and gasoline <br /> tan's.s mounted alacvc-ground for _grav .ty flc--7. <br /> 3. HydrO107711 <br /> The project site is located in the ratter Creel: <br /> Wa rerohe'l (:.ice Trap 4 for hc,- darks) e F.^ Bored in <br /> the fiold report produced 1y the Sc:".]_. Conce-- at:ion <br /> Servi.cc in Ar:ril, 1:`£300 the_e has bc•en a cc tinuouq <br /> c�1^rd_aLt of grcuxnd.;aater in the wat.ers.hed. AccorCi.ng <br /> to f'Tie County I'loo l Cc nt:rol District, t7-.,-- c-rerc?ra ft <br /> prebler: e},i.st s in the western I r-r.ilards cf the watershed <br /> and nc,t within the projcct a-rea. <br /> A r.ccl.nrate water erosion hazard exis us due to the <br /> rolling topochy. mcasures rrcroscd by Vic applicant <br /> to mi.nimi.z.e erc^i.cn includ.e the cstahl i.shmont of <br /> benches during er_ca vafi icn and the recst a.blis?:r^nt: of <br /> native grasses upon coMpIcti.en of tee rro-ic•ct. <br /> Calaveras River, located about 1 mile overland to <br /> th,' north, is the only i ear-rCt?nd su r fa rc wa�ercour-ree <br /> nc the site. It will not be affected btr this <br /> e:-c avati.cn. There is an intermittent= stream on the <br /> st..171-ject parcel located about one-ci:ghth of a mile <br /> sorth of the processing area. The stwe?rbed courses <br /> we.s tward beneath i•:aver ly noad to Gilr..ore reservoir, <br /> 2 ni.les west of the project site. No eater will ben <br /> discharged into the stream during the project. Water <br /> trvn-1p`rted to and from the processing arca will be <br /> ccnt-wined i.n pipes or constructed ditches. <br /> -9- <br />