FIELD DOCUMENTS - Laserfiche WebLink

Home Browse Search

Table 3.2: Volatile Organic Compounds, Analytical Results, Intermediate Aquifer Wells Second Quarter 2006 Site Status Report Former Nestle USA, Inc. Facility, Ripon, CA Average PDB Sample cis-1,2- trans-1,2- Samplel-ocation Sample Method Sampling Frequency Trichloroethene Vinyl Chloride Chloroform Comments/Others Depth (ft, bgs) Date Dichloroethene Dichloroethene USEPA Method 8021 and 524, micrograms per liter(ppb) Intermediate Aquifer C1/C2piez Sampling Not Required - NR - _ - - - - E-6 Grab - Q (SA) 4118/06_ 80 <1 30 35 <2 See Table 6.1 for Treatment System Data _ _ <0.5 1.1 M-5C1 Pure _ - Q 411706 _ 2.2 <0.5 3.6 Purge M-5C1-DUP� Purge - NR 4117106 2.2 <0.5 3.5 <0.5 1.1 M-5C2 PDB 182.5 SA 4125106 <0.5 <0.5 0.61 <0.5 <0.5 M-6C1 PDB 131.5 A 4118106 38 <2 98 <2 <4 M-6C2 PDB 179.5 A 4118106 100 0.77 39 <0.5 <1 1,1-Dichloroethene: 0.92 M-8C1 PDB 159.5 SA 4118106 44 0.66 17 60 <1 1,1-Dichloroethene: 0.53 M-10C1 PDB 164.5 Q 4119106 2.3 <0.5 3 <0.5 <1 M-11 C1 PDB 164.5 A 4/12/06 3.6 <0.5 1.7 5.3 <1 M-13A PDB 122.5 SAA 4119/06 <0.5 <0.5 <0.5 <0.5 <1 M-16A NS - B - - - - - - Sampled in odd-numbered years M-16C1 PDB 160.5 A 4125106 <0.5 <0.5 <0.5 <0.5 <1 M-17C1 PDB 130.5 A 4119106 7 <1 <1 82 <2 M-18C1 PDB 141.5 A 513106 43 <0.5 22 <0.5 <1 1,1-Dichloroethene: 0.53 M-19C1 PDB 154.5 SAA 4112/06 3.3 <0.5 2.9 0.89 <1 M-20C1 PDB 147.5 A 4119106 33 0.96 20 36 <1 M-21C1 PDB 142.5 Q A 4119106 6.1 <0.5 2.1 M-23C1 PDB 118.3A 4119106 <0.5 <0.5 <0.5 _<0.5 <1 M-24C1 PDB 136.5 � A 4119106 0.91 <0.5 <0.5 <0.5 <1 M-25C1 PDB 150.5 A 4118106 15 <0.5 29 <0,5 1 M-25C2 PDB 183.5 A 4118/06 47 <0.5 12 <0.5 <1 M-26C2 PDB 187.5 Q SA 4/18106 2.4 <0.5 0.64 0.51 <1 M-27A/C PDB 134.5 Q(SA) 513106 <0.5 <0.5 <0.5 <0.5 <1 <1 M-28A(AIC) Purge - Q(SA) 4117106 <0.5 <0.5 <0.5 <0.5 _ M-28C1 Purge - Q SA <0.5 <0.5 <0.5 <1 4117106 0.65 ._ M-29C1 Purge - Q(SA) 4117106 <0.5 <0.5 <0.5 <0.5 <1 M-29C2 Purge - Q SA <0.5 <1 4117106 <0.5 <0.5 <0.5 _ M-30C1 PDB 127.5 NR Q 4118106 110 3.2 38 210 <4 M-30C2 PDB 152.5 NR(Q(f)) 4118106 11 <0.5 1.6 2.4 <1 M-31C1 PDB 122.5 NR Q #)) 4118106 <0.5 <0.5 <0.5 <0.5 <1 M-32C PDB 135.5 NR Q 4118106 15 <0.5 6.6 <0.5 <1 M-33C PDB 190.5 NR Q f 518106 <0.5 <0.5 <0.5 <0.5 <1 M-34C PDB 137.5 NR Q 4118106 <0.5 <0.5 <0.5 <0.5 <1 M-36C PDB 136.5 NR Q 4118/06 <0.5 <0.5 <0.5 <0.5 <1 Notes: (a)Groundwater elevation and depth to groundwater from surface will be measured at each monitoring well and accessible supply well in this table on a quarterly basis. ppb= parts per billion (b) Nestle can sample more frequently than required. However, results from additional samples must be provided to the CVRWQCB for review. msl: Above mean sea level (c) Sampling is not required. Measurement of quarterly groundwater elevations are required. bgs: below ground surface (d)Sample if it becomes operational. B: Biennial sampling (odd-numbered years) (e)Sampling frequency required for private supply wells that have wellhead treatment units installed by Nestle. A: Annual sampling (f) New wells installed in 2005 proposed for monitoring quarterly in 2006. In 2007, monitoring frequency proposed to be reevaluated (Environmental Cost Management, Inc., Drat Well Installation Report SA: Semi-annual sampling For Plume Delineation South of the Stanislaus River, Former Nestle USA, Inc. Facility, Ripon, California, December 16, 2005). Quarterly sampling proposed in the 2005 Annual Report that is awaiting M: Monthly sampling RWQCB approval. Q: Quarterly sampling (g)The 2005 Annual Report requests removal from monitoring program, for example, the well is abandoned/detroyed or monitoring is not possible. - : Data Not available or Unknown. InflEff: Influent and Effluent sampling (occurs monthly for operating extraction wells) NR: Not Required. Sampling frequency schedule agreement established between Nestle and RWQCB on 7121105. NS: Not Sampled (SAMPLING FREQUENCY) = Bold Sampling Frequency in Parentheses shows change proposed in the 2005 Annual Report that is awaiting RWQCB approval. Page I of I