ARCHIVED REPORTS_RIPON STATUS REPORT 2011 1ST QUARTER

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Table 3.3: Volatile Organic Compounds, Analytical Results, Lower Aquifer Wells First Quarter 2011 Site Status Report Former Nestle USA, Inc. Facility, Ripon, CA Sample Sample Average PDB MRP Actual Sample cis-1,2- trans-1,2- Trichloro- Vinyl Location Method Depth (ft, bgs) Sampling Sampling Date Chloroform Dichloroethene Dichloroethene ethene Chloride Comments/Others Frequency Frequency USEPA Method 8260B and 524, micrograms per liter (pg/L) Lower Aquifer 76D PDB 225.5 Quarterly Quarterly 01/07/11 <1 16 <0.5 39 <0.5 M-6D Duplicate 01/07/11 <1 15 <0.5 38 <0.5 M-8D PDB 225.5 Quarterly Quarterly 01/11/11 <1 1.4 <0.5 2.7 <0.5 M-20D PDB 217.5 Quarterly Quarterly 01/06/11 <1 0.78 <0.5 <0.5 0.65 M-21D PDB 227.5 Quarterly Quarterly 01/11/11 <1 0.84 <0.5 <0.5 <0.5 M-23D PDB 223.7 Annual Annual - - - - - - M-27D Purge - Quarterly Quarterly 01/07/11 <1 <0.5 <0.5 <0.5 <0.5 M-31 D PDB 203.5 Semi-Annual Semi-Annual M-32D PDB 224.5 Quarterly Quarterly 01/06/11 <1 5.6 <0.5 2.4 <0.5 M-33C PDB 195.5 Semi-Annual Semi-Annual - - - - - - M-34U PDB 226.5 Quarterly 0 uarterly 01/06/11 <1 4.9 <0.5 2.2 <0.5 M-34D1 PDB 328.5 Quarterly Quarterly 1/06/11 <1 <0.5 <0.5 <0.5 <0.5 M-35D PDB 247.5 Semi-Annual Semi-Annual - - - - - - M-36D PDB 232.5 Semi-Annual Semi-Annual - - - - - - M-37D PDB 231.5 Quarterly Quarterly 1/06/11 <1 <0.5 <0.5 <0.5 <0.5 M-38D PDB 233.5 Quarterly Quarterly 01/06/11 <1 <0.5 <0.5 <0.5 <0.5 M-40D PDB 249.5 Quarterly Quarterly 01/11/11 <1 0.95 <0.5 5.6 <0.5 M-41 D PDB 222.5 Quarterly Quarterly 01/06/11 <1 <0.5 <0.5 <0.5 <0.5 M-41 D Duplicate 01/06/11 <1 <0.5 <0.5 <0.5 <0.5 M-43D PDB 228.0 Quarterly Quarterly 01/06/11 <1 <0.5 <0.5 <0.5 <0.5 M-45D PDB 226.5 Quarterly Quarterly 01/11/11 <1 <0.5 <0.5 <0.5 <0.5 Notes: = Current quarter * Well not listed in the MRP. NS: Not Sampled - : Data Not available or Unknown. NR: Not Required. PDB = passive diffusion bag Page 1 of 1