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Table 4: Volatile Organic Compounds in Municipal Wells and Private Wells <br /> Third Quarter 2012 Site Status Report <br /> Former Nestle USA, Inc. Facility <br /> Ripon, CA <br /> Average <br /> Sample Sampling Sample cis-12- trans-12- <br /> Well ID Method PDB Depth Frequency Date Chloroform Dichloroethene Dichloroethene Trichloroethene Vinyl Chloride Comments/Others <br /> (ft, bgs) <br /> USEPA Method 524, micrograms per liter (pg/L) <br /> Municipal Wells <br /> MW-3 Grab - Quarterly (a) 01/23/12 0.23 2.3 <0.10 0.98 <0.10 Bromoform: 0.28; <br /> MW-3 Grab - Quarterly (a) 04/18/12 0.31 2.2 <0.10 0.84 <0.10 Bromoform: 0.27; <br /> MW-3 Grab - Quarterly (a) 07/23/12 0.19 2.3 <0.10 1.0 <0.10 <br /> MW-7 Grab - Quarterly (a) 01/23/12 <0.10 <0.10 <0.10 <0.10 <0.10 Dichlorobromomethane: 0.16; <br /> Chlorodibromomethane: 0.41; Bromoform: 0.95; <br /> MW-7 Grab - Quarter) a 04/18/12 <0.10 <0.10 <0.10 <0.10 <0.10 Chlorodibromomethane: 0.31; Bromoform: 0.94; <br /> MW-7 Grab - Quarter) a 07/23/12 <0.10 <0.10 <0.10 <0.10 <0.10 <br /> MW-9 Grab - Quarterly (a) 01/23/12 <0.10 <0.10 <0.10 <0.10 <0.10 <br /> MW-9 Grab - Quarterly (a) 04/18/12 <0.10 <0.10 <0.10 <0.10 <0.10 <br /> MW-9 Grab - Quarterly (a) 04/18/12 <0.10 <0.10 <0.10 <0.10 <0.10 <br /> MW-9 Grab - Quarterly (a) 07/23/12 <0.10 <0.10 <0.10 <0.10 <0.10 <br /> MW-10 Grab - Quarter) a 01/23/12 <0.10 <0.10 <0.10 <0.10 <0.10 Bromoform: 0.66; <br /> MW-10 Grab - Quarter) a 04/18/12 <0.10 <0.10 <0.10 <0.10 <0.10 <br /> MW-10 Grab - Quarter) a 07/23/12 <0.10 <0.10 <0.10 <0.10 <0.10 <br /> MW-12 - - Quarter) 01/23/12 - - - - - Well not operational at this time. <br /> MW-12 - - Quarter) 04/18/12 - - - - - Well not operational at this time. <br /> MW-12 - - Quarter) 07/23/12 - - - - - Well not operational at this time. <br /> MW-13 - - Annual 04/18/12 <0.10 <0.10 <0.10 <0.10 <0.10 Dichlorobromomethane: 0.13; <br /> Chlorodibromomethane: 0.32; Bromoform:1.0; <br /> MW-14 - - Annual 04/18/12 <0.10 <0.10 <0.10 <0.10 <0.10 <br /> MW-15 Grab - Quarter) a - - - - - - Well never operational due to poor water quality. <br /> MW-16 Grab - Quarter) (a) 01/23/12 - - - - - Well not operational at this time. <br /> MW-16 Grab - Quarter) a 04/18/12 <0.10 <0.10 <0.10 <0.10 <0.10 <br /> MW-16 Grab - Quarter) a 07/23/12 <0.10 <0.10 <0.10 <0.10 <0.10 <br /> MW-18 Grab - Quarter) a 01/23/12 <0.10 <0.10 <0.10 <0.10 <0.10 Bromoform: 0.18; <br /> MW-18 Grab - Quarterly (a) 04/18/12 <0.10 <0.10 <0.10 <0.10 <0.10 Dichlorobromomethane: 0.19; <br /> Chlorodibromomethane: 0.54; Bromoform:1.5; <br /> MW-18 Grab - Quarter) a 07/23/12 <0.10 <0.10 <0.10 <0.10 <0.10 <br /> Domestic Wells <br /> 110 Manley Grab - Quarter) 01/04/12 <0.10 <0.10 <0.10 <0.10 <0.10 <br /> 110 Manley Grab - Quarter) 04/18/12 <0.10 <0.10 <0.10 <0.10 <0.10 <br /> 110 Manley Grab - Quarter) 07/02/12 <0.10 <0.10 <0.10 <0.10 <0.10 <br /> 361 Parallel Grab - Quarter) 01/04/12 <0.10 <0.10 <0.10 <0.10 <0.10 Bromoform: 1.0; Chlorodibromomethane: 0.26; <br /> 361 Parallel Grab - Quarter) 04/18/12 <0.10 <0.10 <0.10 <0.10 <0.10 <br /> 361 Parallel Grab - Quarter) 07/02/12 <0.10 <0.10 <0.10 <0.10 <0.10 <br /> 415 Parallel Grab - Quarterly - - - - - - House condemned by the City of Ripon; <br /> Documentation provided to RWQCB. <br /> Well decommission by owner and connected to City <br /> 501 Parallel Grab - Quarterly - - - - - - of Ripon water supply; Documentation provided to <br /> RWQCB. <br /> 5500 Hall Road Grab - Annual 04/18/12 <0.10 <0.10 <0.10 <0.10 <0.10 <br /> Page 1 of 5 <br />