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7500 West Eleventh Street,Tracy,CA Well Date Casing Depth to Productl Groundwater Product Approx.Volume of No. Purged of Elevation Groundwater Elevation Thickness Liquids Extracted Product Interface (Before Purging) Total Product s ft.MSL ft. ft.MSL ft. gal. gal. MWFP-1 48.00 04/30/04 9.64 38.36 0 15 0 07/26/04 8.71 39.29 0 nip n/p 10/27/04 9.33 38.67 0 nlp nip 02/24/05 8.99 39.01 0 15 0 06/23/05 8.81 39.19 0 15 0 10/21/05 8.77 39.23 0 15 0 12/21/05 8.68 39.32 0 15 0 MWFP-2 46.65 04/30/04 8.34 38.31 0 15 0 07/26/04 7.50 39.15 0 nlp nip 10/27/04 8.05 38.60 0 nip nip 02/24/05 7.74 38.91 0 15 0 06/23/05 7.30 39.35 0 15 0 10/21/05 8.03 38.62 0 15 0 12/21/05 8.00 38.65 0 15 0 MWFP-3 47.35 04/30/04 9.04 38.31 0 15 0 07/26/04 8.19 39.16 0 nip nip 10/27/04 8.77 38.58 0 nip n/p 02/24/05 8.42 38.93 0 15 0 06/23/05 7.98 39.37 0 15 0 10/20/05 9.33 38.02 0 15 0 +, 12/21/05 9.25 38.10 0 nip nip MWFP-4 47.88 04/30/04 9.69 38.19 0 15 0 07/26/04 8.83 39.05 0 nip nip 1012.7104 9.38 38.50 0 nip nip 02/24/05 9.07 38.81 0 15 0 06/23/05 8.69 39.19 0 15 0 10/21/05 9.41 38.47 0 15 0 12/21/05 9.29 38.67 0 15 0 i MWFP-5 45.63 04/30/04 7.52 38.11 0 15 0 07/26/04 6.74 38.89 0 nip nip 10/27/04 7.27 38.36 0 nip nip 02/24/05 7.00 38.63 0 15 0 06/23/05 6.68 38.95 0 15 0 10/21/05 7.30 38.33 0 15 0 12/21/05 7.20 38.43 0 15 0 Nates: 1. nlm=Not measured. 2. nip=Not purged of floating product. 3. Moderate concentrations of components of fuel hydrocarbons in sample of groundwater recovered from well suggest LNAPL was not present(see Table 2). 4. High concentrations of components of fuel hydrocarbons in sample of groundwater recovered from well indicate LNAPL was present(see Table 2). 5. Estimated total recovered after successive rounds of purging with intermittent periods to permit ` groundwater and floating product in well to re-establish equilibrium. �i t Page 2 of 2 sic I '