FIELD DOCUMENTS - Laserfiche WebLink

Home Browse Search

Table 6.1: Volatile Organic Compounds,Analytical Results,Stockton Avenue and Industrial Avenue Treatment Systems Second Quarter 2006 Site Status Report Former Nestle USA,Inc.Facility, Ripon,CA Sampling Sampling Sample cis 1,2- trans 1,2- Well Name/Location Method Frequency Date Dichloroethene Dichloroethene Trichloroethene Vinyl Chloride Chloroform Comments/Others USEPA Method 8021 and 524,micrograms Der liter(ppb) Nestle Extraction S stem Stockton Avenue E-2 Grab Q SA 4/18/06 See Table 3.1 for individual well data E-6 Grab Q SA 4/18/06 See Table 3.2 for individual well data Influent(E-2,E-6 AS Inf) Grab Monthly 4/7/06 78 0.81 31 41 <1 1,1-Dichloroethene:0.9 Grab Month/ 5/9/06 75 <7 30 35 <2 Grab Month/ 6/13/06 69 1 28 38 <1 1,1-Dichloroethene: 1.2 Mid Point(E-2,E-6 AS Grab Bimonthly(a) 4n106 <0.5 <0.5 <0.5 <0.5 <1 Eff) Grab Bimonthl a 4/27/06 0.6 <0.5 <0.5 <0.5 <1 Grab Bimonthl a 5/9/06 <0.5 <0.5 <0.5 <0.5 <1 Grab Bimonthl (a) 5/23/06 0.51 <0.5 <0.5 <0.5 <1 Grab Bimonthly(a) 6/13/06 <0.5 <0.5 <0.5 <0.5 <1 Grab Bimonthl a 6/27/06 0.53 <0.5 <0.5 <0.5 <1 Effluent(E-2,E-6 Carb Grab Bimonthly(a) 4f7/06 0.54 <0.5 <0.5 <0.5 <1 Elf) Grab Bimonthl a 4/27/06 0.65 <0.5 <0.5 <0.5 <1 Grab Bimonthly(a) 5/9/06 0.52 <0.5 <0.5 <0.5 <1 Antimony:0.0025;Barium:0.21; Calcium:77;Calcium Carbonate: 270;Chloride:100;Chromium: 0.0092;Iron:0.067;Magnesium: Grab Quarterly 5/9/06 - - - - - 19;Nickel:0.0026;Nitrate:7.1; Potassium:6.6 Selenium:0.0022 Sodium:82;Total Dissolved Solids:550;Vanadium:0.044(all n m /L Grab Bimonthly a 5/23/06 <0.5 <0.5 <0.5 <0.5 <1 Grab Bimonthl a) 6/13/06 <0.5 <0.5 <0.5 <0.5 <1 • Grab Bimonthl a 6/27/06 <0.5 <0.5 <0.5 <0.5 <1 Notes: B: Biennial sampling(odd-numbered years). NS:Not Sampled A: Annual sampling NR:Not required SA: Semi-annual sampling -:Data Not available or Unknown. M:Monthly sampling ppb=parts per billion Q: Quarterly sampling bgs:below ground surface msl:Above mean sea level Sampling frequency schedule agreement established between Nestle and RWQCB on 7/21/05. Influent and Effluent sampling(occurs monthly for operating extraction wells) (SAMPLING FREQUENCY)=Bold Sampling Frequency in Parentheses shows change proposed in the 2005 Annual Report that is awaiting RWQCB approval. (a)Sampling for VOCs can be reduced to monthly after the initial six months of monitoring are complete. (b)Neste can sample more frequently than required. However,results from additional samples must be provided to the CVRWQCB for review. (c)Sampling is not required. Measurement of quarterly groundwater elevations are required. (d)Sample if it becomes operational. Process logs&monthly reports show Total Dissolved Solids,pH,temperature and conductivity results for the treatment systems. Page 2 of 2