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't8/08/2006 12:11• 2092235044 CAL STATE ENGINEERIN PAGE 03 <br /> The proposed parcels consist of 10 acres each and have the room to accommodate <br /> second unit dwellings. The areas proposed for the:optic systems can be used for both <br /> intial&second unit dwellings. The size of the septic system for the initial dwelling <br /> will determine what area is available for second unit dwelling. There may need to be <br /> fw1her percolation testing to End an adequate area for the second unit septic systems, <br /> which can be done when and if there are proposed second unit dwellings. <br /> GROUNDWATER INFORMATION <br /> Groundwater in the general area is at approximately 100 fee?to 123 feet deep below <br /> ground surface. There does not appear to be any exastinx or poteutial gcoundwates <br /> co,31amiimation issues in the general vicinity. Most septic systems in etre area are <br /> leachlines to s--epage pita at a maximum of 25 feet deep, which is well above the <br /> ex:•sting water table. Any potential surface contamination reaching groundwater <br /> would be extremely rare due to massive clay layers and hardpan at depths of 4 finer t:p <br /> 6 feet deep,which would restrict vertical movement. <br /> There we tvvc,existing wells on the proposed parcel I. t--h3e is used as an agn culture <br /> well anis the other well is for domestic use,see map for details. 11r:m is not any <br /> inf=at:ion on the existing wells,so we do not knovr the depth or construction <br /> parsmteb rs. ]lie domestic well had a sample taken and tasted for the required <br /> corrstituettts per Sam Joaquin County Environmental Health, See attached laboratory <br /> regults. The sample was Ataifk1.eTn by the client at the well head faucet for this parcel at <br /> 261.70 Jack Tone Road,A'lPN 021-02o-02. <br /> IL. SCOPE OF U4VES'LTGATION <br /> Our evaluation of the proposed subdivision included profile twftclvjig,pr reoltition <br /> tests and general evaluation of topography,slope,an']constraints such a5 drainage <br /> courses,Property boundaries and cut banlns. Profile trenches were logged in. <br /> awmdancc with the USIA soil classification system and imdiaadcros of groundwater <br /> (where present)were notd. Profile trench logs are presented as appendix A to this <br /> repart. Percolation tests were conducted per the Says Joaquin Commrequiremeras <br /> and am ps?raented in.appendix u, <br /> SOIL SUITABILITS' STLq)y <br /> Coyote Creek Estates Juiy,2006 <br />