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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 8260B micrograms per liter (pg/L) <br /> Municipal Wells <br /> MW-5 Grab - Quarterly (a) - - - - - - Well pump not operational during sampling event. <br /> MW-5 Grab - Quarterly (a) 04/18/12 <1.0 <0.50 <0.50 <0.50 <0.50 <br /> MW-5 Grab - Quarterly a 07/23/12 <1.0 <0.50 <0.50 <0.50 <0.50 <br /> MW-11 Grab - Quarterly a 01/23/12 <1.0 <0.50 <0.50 <0.50 <0.50 <br /> MW-11 Grab - Quarterly (a) 04/18/12 <1.0 <0.50 <0.50 <0.50 <0.50 <br /> MW-11 Grab - Quarterly a 07/23/12 <1.0 <0.50 <0.50 <0.50 <0.50 <br /> Diamond Pet Food Processors (formerly Neenah Paper Company) Wells EMM <br /> PW-6 Grab - Quarterly (a) 03/08/12 <1.0 <0.50 <0.50 <0.50 <0.50 <br /> PW-6 Grab - Quarterly a 05/31/12 <1.0 <0.50 <0.50 <0.50 <0.50 <br /> PW-6 Grab - Quarterly (a) 08/08/12 <1.0 <0.50 <0.50 <0.50 <0.50 <br /> PW-8 Grab - Quarterly (a) 03/08/12 - - - - - Well not operational at this time. <br /> PW-8 Grab - Quarterly (a) 05/31/12 - - - - - Well not operational at this time. <br /> PW-8 Grab -�j Quarterly (a) 08/08/12 - - - - - Well not operational at this time. <br /> TH-1 PDB 278.5 Annual 05/31/12 <1.0 <0.50 <0.50 <0.50 <0.50 <br /> TH-7 PDB 90 Annual 05/31/12 <1.0 <0.50 <0.50 <0.50 <0.50 <br /> TH-8 PDB 142.5 Quarterly 01/24/12 <1.0 8.7 <0.50 3.2 11 <br /> TH-8 PDB 142.5 Quarterly 04/06/12 <1.0 9.8 <0.50 2.8 11 <br /> TH-8 PDB 142.5 Quarterly 08/23/12 <1.0 9.0 <0.50 3.0 11 <br /> TH-9 PDB 82.5 Quarterly 01/24/12 <1.0 1.0 <0.50 0.60 1.1 <br /> TH-9 PDB 82.5 Quarterly 04/06/12 <1.0 <0.50 <0.50 <0.50 0.85 <br /> TH-9 PDB 82.5 Quarterly 08/23/12 <1.0 1.6 <0.50 0.79 2.0 <br /> TH-10 PDB 145.5 Quarterly 01/24/12 <5.0 130 2.7 45 140 1,1-Dichloroethene: 2.5; <br /> TH-10 PDB 145.5 Quarterly 04/06/12 <1.0 130 2.6 46 140 1,1-Dichloroethene: 1.6; <br /> TH-10 Duplicate 04/06/12 <1.0 130 2.5 44 140 11,11-Dichloroethene: 1.6; <br /> TH-10 PDB 145.5 Quarterly 08/23/12 <1.0 120 2.5 44 130 11,11-Dichloroethene: 1.6; <br /> TH-10 Duplicate 08/23/12 <1.0 120 2.5 43 130 1,1-Dichloroethene: 1.6; <br /> TH-11 PDB 175 Semi-Annual - - - - - - Well not accessible at this time. <br /> Other Wells <br /> RPS-1 Grab - Month) 01/04/12 <1.0 4.7 <0.50 2.5 <0.50 <br /> RPS-1 Grab - Monthly 02/07/12 <1.0 5.3 <0.50 2.1 <0.50 <br /> RPS-1 Grab - Month) 03/06/12 <1.0 4.0 <0.50 1.6 <0.50 <br /> RPS-1 Grab - Monthly 04/10/12 <1.0 6.2 <0.50 2.4 <0.50 <br /> RPS-1 Grab - Month) 05/08/12 <1.0 5.2 <0.50 2.1 <0.50 <br /> RPS-1 Grab - Monthly 06/05/12 <1.0 4.1 <0.50 1.7 <0.50 <br /> RPS-1 Grab - Month) 07/02/12 <1.0 5.2 <0.50 2.1 <0.50 <br /> RPS-1 Grab - Monthly 08/07/12 <1.0 3.8 <0.50 1.7 <0.50 1,1-DCE: 0.53 <br /> RPS-1 I Grab I - Month) 09/11/12 1 <1.0 1 3.8 1 <0.50 1.6 1 <0.50 <br /> Page 4 of 5 <br />