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June 21, 2000 <br /> Job Number: LGOO-173 <br /> Page 14 <br /> Joaquin Environmental Health Division should be notified. It is not expected the <br /> level will exceed maximum drinking water standards for nitrate. <br /> 5) Regarding the vineyards, proper laboratory testing and care should continue in <br /> order to minimize leaching of nitrates into the ground water from fertilizer. <br /> Based on the results of this study, we believe the soils in the proposed leach field area are <br /> satisfactory for use of an on-site septic system. Provided our recommendations are followed, we <br /> do not believe that the proposed project will negatively impact ground water quality. <br /> IX. LIbMATIONS <br /> The conclusions of this report are based on the information provided regarding the <br /> existing and proposed development, the use of the subject property, and the site conditions as <br /> they existed at the time we excavated our test hole and performed the percolation test. It was <br /> assumed that the test hole and percolation test results are representative of the subsurface <br /> conditions in the general area. <br /> Our professional services were performed, our findings obtained, and our conclusions <br /> proposed in accordance with generally accepted engineering principles and practices. This <br /> warranty is in lieu of all other warranties either expressed or implied. Test findings and <br /> statements of professional opinion do not constitute a guarantee or warranty, expressed or <br /> implied. <br /> D G�O< <br /> J. W O <br /> W�\QQ No. 2151 Very Very truly yours, <br /> CERTIFIED <br /> ENGINEERING (1 PERSON& ASSOC., INC- <br /> GE OLOGIST �Q ¢_QA^' <br /> SOF CALF <br /> David Welch, M.Sc., Senior Geologist <br /> CEG-2151 G-653 <br /> Qal) IESs <br /> ANUJ�\�` <br /> n Fp_ <br /> Neil,10(Andersk President <br /> « EXp' 2 y� r Registered Geotechnical Engineer, No. 2245 <br /> NOA:djw q fOTECHN�OPQ��� <br /> [LGOO-173.wpd] p <br /> FCA <br /> — <br /> ae�aos <br /> � ca <br />