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M K L E I N F E L D E R SJEHD comments: A description of the location of the site well as well as the type and construction of the well itself is required. Response: The location of the site well has been included on Plate 1 (attached). A permit was on file with SJCEHD for the construction of the domestic well (Permit No. 75-80W). The well excavation is reported to be 10 inches in diameter and approximately 150 feet in depth. The well is composed of a 6-inch diameter casing with a grout seal that extends to a depth of 50 feet. A copy of the permit is attached. 4.4 Description of constituents being tested for in the water sample. SJEHD comments: Water samples were not analyzed for General Minerals and Nitrates as NO3 as required by Land Use Condition C. Response: Additional water samples were obtained from the site well and analyzed for General Minerals, please see results (attached). Water samples in the above referenced report were analyzed for Nitrates as N. The following conversion factor may be used to convert Nitrates as N to Nitrates as NO3: (Nitrate as NO3) * 0.2258 =Nitrate as N Where: N= 6.6 mg/L (value obtained from above referenced report) Our calculation is as follows: Nitrate as NO3=(Nitrate as N)/0.2258 Nitrate as NO3= (6.6 mg/L)/0.2258 Nitrate as NO3=29.22 mg/L We appreciate the opportunity to provide our services for this project. We note that the Limitations section of our original report, referenced above, still applies. If you have questions regarding this letter or if we may be of further assistance,please contact our office. Respectfully submitted, ESS! EINI EVEIC. Reviewed by: -A F _ .2283 x z P.6-05 D ' 'c J. Arredondo oT HN�oP�\P Staff Engineer eo c cal Dep F C A� DJA:lr Attachment 37210.G01/ST04R359 March 10,2004 ©2004 KIcinfelder,Inc. Page 2 of 2