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December.16;2002 <br /> Job Number: LG02=213 <br /> - Page 3 <br /> A search of septic system and well permit records was conducted to determine the-history <br /> of septic system and well repairs for the site. The permit search was conducted from the files of <br /> the San Joaquin County Environmental Health Division for 10948 S. Airport Way, Manteca,, " <br /> California. The record search located two (2) permits. A summary of the permits is presented in <br /> the following table. <br /> -- Table 1. <br /> Permit Review Summary. <br /> (see appendix for permit copies) <br /> Address,Permit Date Tank Dimension Comments <br />: :. Capacity <br /> 10948.S.Airport Way, 8-17-99. .1900 gal install Tank Only Repair/Addition• <br /> I. 10948 S.Airport,9-21-88 Repair/Addition of rt eli pump . <br /> V. GROUND WATER <br /> One onsite domestic water well exists on.the property and is shown on Plate No. 1. The <br /> well supplies water'to the house and was utilized to collect two (2) ground-water samples. The <br /> grourici-water depth,y�p-for the site was estimated by using.the Sari Joaquin County Flood <br /> - Control and Water Conservation District ground-water depth and elevation maps.' <br /> The first water.sam' ple was obtained.from the domestic well to detect the presence of <br /> dibrbmochloropropane (DBCP) and Nitrate (NO3)on June 7, 2002.- All the samples were <br /> submitted to Precision Enviro-Tech; Stockton by Rollin Hall, an employee of Neil O. Anderson <br /> l� &Associates,,Inc. The result of the'June 7,,2002-analysis was that DBCP was non-detectable <br /> (ND) and nitrate_w_�s ound at 10 rr1g�, - Q,,. The maximum contaminate limit for nitrate as <br /> NO3 is 45 mg/L. The June 7, 2002 water sample was found to be 2.6 times higher than the . <br /> drinking water limit1ifor nitrate; [_ / j � <br /> Y <br /> 1 1�4R Tom. 1� 11fC.Fie �L7 e, Y43"p 4 1CL �1 <br /> Due to the High level of nitrates in the June 7, 2002 'sainple,a second water sample was <br /> tested for nitrates on June 28, 2002.;This sample was collected after running the well.water.for. a <br /> ' n Flood Control and Water Conservation District. De pth to round water and ground- <br /> water <br /> Joaquin County P g g. <br /> water elevation maps Fall 1998 and Spring 1999. Published biannually, Scale: 1 inch=.2 miles. <br /> 0 <br /> r <br />