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� Y'ile No. 20-2982-02 k� KLEINFELDER <br /> May 21, 1991 <br /> Page 2 of 2 <br /> Based on the above information, and the information contained in <br /> our referenced septic system suitability study report, it is our <br /> opinion that the proposed additional 10-acre parcel is suitable <br /> for septic system use. We note that our scope of services for this <br /> letter and for our original report did not include a detailed <br /> evaluation of the potential for the septic systems to affect the <br /> quality of groundwater. However, the project involves only four <br /> septic systems on the approximate 156-acre property. Therefore, <br /> with groundwater at depths of approximately 130 feet deep, in our <br /> opinion the likelihood of a significant change in the nitrate level <br /> of the groundwater beneath the site due to the additional septic <br /> systems is very remote. If additional more dense development is <br /> planned in the area, we suggest that consideration be given to <br /> completing a nitrate loading study. <br /> We trust this letter presents the information required at this <br /> time. If you have any questions regarding this letter, please <br /> contact us. <br /> Respectfully submitted, <br /> KLEINFELDER, INC. <br /> Steven R. Davis, C.E.G. <br /> Engineering Geologist <br /> �D N /SON�n1 <br /> Ron Heinzen, G.E. <br /> Engineering Manager <br /> SRD:sd <br /> Attachments <br /> cc: San Joaquin County Environmental Health <br /> Copyright 1991 KLeinfelder, Inc. <br />