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Table 6.2: Volatile Organic Compounds,Analytical Results, Private Wellhead Treatment Systems <br /> Second Quarter 2006 Site Status Report <br /> Former Nestle USA, Inc. Facility, Ripon, CA <br /> Sampling Sampling Sample cis 1,2- trans 1,2- <br /> ell Name/Location Method Frequency Date Dichloroethene �Dichloroethene Trichloroethene �VlnylChloride Chloroform Comments/Others <br /> USEPA Method 8021 and 524,micrograms per liter(ppb) <br /> Mid Point(7501 Kiernan Grab Bimonthly 4125/06 <0.1 <0.1 <0.1 <0.1 <0.1 <br /> Mid <br /> Grab Bimonthly 5/9/06 <0.1 <0.1 <0.1 <0.1 <0.1 <br /> Grab Monthly 5/9/06 - - - - Nitrate:4.6m /L <br /> Grab Bimonthly 5/23/06 <0.1 <0.1 <0.1 <0.1 <0.1 <br /> Grab Bimonthly 6/13/06 <0.1 <0.1 <0.1 0.15 <0.1 <br /> Grab Monthly 6/13106 - - - - - Nitrate:5.3m /L <br /> Grab Bimonthly 6/27/06 <0.1 <0.1 <0.1 0.53 <0.1 <br /> Effluent(7501 Kiernan Grab Bimonthly 4/12/06 <0.1 <0.1 <0.1 <0.1 <0.1 <br /> E <br /> Grab Monthly 4/12/06 - - - - - Nitrate:<1m /L <br /> Grab Bimonthly 4/25/06 <0.1 <0.1 <0.1 <0.1 <0.1 <br /> Grab Bimonthly 5/9/06 <0.1 <0.1 <0.1 <0.1 <0.1 <br /> Grab Monthly 5/9106 - - - - - Nitrate:3.7m fL <br /> Grab Bimonthly 5/23/06 <0.1 <0.1 <0.1 <0.1 <0.1 <br /> Grab Bimonthly6/13106 <0.1 <0.1 <0.1 <0.1 <0.1 <br /> Grab Monthly 6113/06 - - - - Nitrate:4.9m /L <br /> Grab Bimonthl 6/27106 <0.1 <0.1 <0.1 <0A <0.1 <br /> Notes: <br /> B: Biennial sampling(odd-numbered years). <br /> A Annual sampling <br /> SA: Semi-annual sampling <br /> M: Monthly sampling <br /> Q: Quarterly sampling <br /> ni Above mean sea level <br /> NS: Not Sampled <br /> NR: Not required <br /> -: Data Not available or Unknown. <br /> ppb=parts per billion <br /> bgs:below ground surface <br /> Sampling frequency schedule agreement established between Nestle and RWQCB on 7/21/05. <br /> Influent and Effluent sampling(occurs monthly for operating extraction wells) <br /> (SAMPLING FREQUENCY)=Bold Sampling Frequency in Parentheses shows change proposed in the 2005 Annual Report that is awaiting RWQCB approval. <br /> (a)Sampling for VOCs can be reduced to monthly after the initial six months of monitoring are complete. <br /> (b)Nestle can sample more frequently than required. However, results from additional samples must be provided to the CVRWQCB for review. <br /> (c)Sampling is not required. Measurement of quarterly groundwater elevations are required. <br /> (d)Sample if it becomes operational. <br /> Process logs&monthly reports show Total Dissolved Solids,pH,temperature and conductivity results for the treatment systems. <br /> Page 2 of 2 <br />