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Table 3.1: Volatile Organic Compounds, Analytical Results, Upper Aquifer Wells <br /> First Quarter 2011 Site Status Report <br /> Former Nestle USA, Inc. Facility, Ripon, CA <br /> Average PDB MRP Actual Sample cis-1,2- trans-1,2- Trichloro- Vinyl <br /> SampleLocation Sample Method Depth (ft, bgs) Sampling Sampling Date Chloroform Dichloroethene Dichloroethene ethene Chloride Comments/Others <br /> Frequency Frequency <br /> USEPA Method 8260B and 524, micrograms per liter (pg/L) <br /> M-17B PDB 42.5 Biennial Biennial - - - - - - <br /> M-18A PDB 93.5 Annual Annual - - - - - - <br /> M-18B PDB 42.5 Biennial Biennial - - - - - - <br /> M-22A PDB 103.0 Annual Annual - - - - - - <br /> M-22B PDB 37.5 Biennial Biennial - - - - - - <br /> M-23A PDB 87.3 Annual Annual - - - - - - <br /> M-27A PDB D2.5 uartery Quartery 01/11/11 <1 <0.5 <0.5 < <0.5 <br /> M-27A Duplicate 01/11/11 <1 <0.5 <0.5 <0.5 <0.5 <br /> M-28A Purge - Annual Annual - - - - - - <br /> M-32A PDB 74.5 Quarterly Quarterly 01/06/11 <1 1.2 <0.5 <0.5 0.73 <br /> M-34A PDB 86.5 Quarterly Quarterly 01/06/11 <1 <0.5 <0.5 <0.5 <0.5 <br /> M-35A PDB 117.5 Quarterly Quarterly 01/06/11 <1 <0.5 <0.5 <0.5 <0.5 <br /> M-35B PDB 67.5 Quarterly Quarterly 01/06/11 <1 <0.5 <0.5 <0.5 <0.5 <br /> M-38A PDB 117.5 Quarterly Quarterly 01/06/11 <1 <0.5 <0.5 <0.5 <0.5 <br /> M-39A PDB 107.5 Quarterly Quarterly 01/11/11 <1 <0.5 <0.5 <0.5 <0.5 <br /> M-41A PDB 109.5 Quarterly Quarterly 01/06/11 <1 2.1 <0.5 0.65 <0.5 <br /> M-42A PDB 106.5 Quarterly Quarterly 01/06/11 <1 <0.5 <0.5 <0.5 <0.5 <br /> M-44A PDB 102.5 Quarterly Quarterly 01/11/11 <1 <0.5 <0.5 <0.5 <0.5 <br /> M-45A PDB 100.5 Quarterly Quarterly 01/11/11 <1 <0.5 <0.5 <0.5 <0.5 <br /> M-46A PDB 52.5 Quarterly Quarterly 01/07/11 <1 <0.5 <0.5 7.2 <0.5 <br /> M-47A PDB 52.5 Quarterly Quarterly 01/07/11 30 <0.5 <0.5 2.4 <0.5 1,1-DCE: 0.97; 1,1-DCA: 4.4 <br /> M-48A PDB 52.5 Quarterly Quarterly 01/07/11 <1 <0.5 <0.5 1.4 <0.5 <br /> M-49A PDB 52.5 Quarterly Quarterly 01/07/11 <1 0.77 <0.5 57 <0.5 <br /> M-50A PDB 62.5 Not Listed Quarterly 01/07/11 <1 <0.5 <0.5 1.6 <0.5 <br /> M-51 A PDB 55.5 Not Listed Quarterly 01/07/11 9.6 <0.5 <0.5 1.9 <0.5 1,1-DCA: 0.66 <br /> M-52B PDB 34.5 Not Listed Monthly', Quarterly 01/11/11 <1 <0.5 <0.5 1.2 <0.5 <br /> M-53B PDB 39.5 Not Listed Quarterly 01/11/11 <1 3.8 <0.5 3.6 <0.5 <br /> Notes: <br /> = Current quarter <br /> ' = Monthly sampling ended in January 2011, quarterly through 4th Quarter 2011 per RWQCB 1,1-DCE = 1,1-dichloroethene PDB = passive diffusion bag <br /> 2 = Quarterly sampling because well is pumping 1,1-DCA = 1,1-dichloroethane NS: Not Sampled <br /> Biennial = Sampled in odd-numbered years NR: Sampling Not Required. <br /> Inf/Eff: Influent and Effluent sampling (occurs monthly for operating extraction wells) - : Data Not available or Unknown. <br /> Page 2 of 2 <br />