Lois Green and Patricia Kelly Petition Canton Café

Lois Green and Patricia Kelly Petition (Canton Café site) E. W. Pierce Co. Closed Case UST Site SWRCB Order WQ __ 05 -UST MW-7 Figure 2 Monitor Well Location Map MW-4 MW-5 & 5 A Cafe Former UST Location MW-3 1990 excavation r pp A N MW-8 f er at dw un ro. G ox w lo Monitor well location June 1991 boring 101 1999 excavations MW-1 & 1 A MW-2 Hig hw ay (locations approximate) D. PARFITT 8/12/03 0 40 SCALE - FEET 80 MW-6

Lois Green and Patricia Kelly 220/<1/2000 Petition ( Canton Café site) E. W. Pierce Co. Closed Case UST Site SWRCB Order WQ __ 05 -UST <1/<1/<10 MW-7 35/<1/320 13/250/<10 Figure 3 Total Petroleum Hydrocarbons In Soil 18/1. 5/680 <1/<1/<10 MW-4 MW-5 A <1/1. 1/<10 6. 7/3. 2/230 <1/<1/<10 Cafe 4. 6/94/10 5. 3/<1/78 18/1. 5/680 2. 5/NA/NA 500/2. 6/NA 5. 6/2. 8/61 18/1. 5/680 <1/<1/<10 <1/<1/22 <1/3. 4/13 MW-3 9. 7/8. 9/19 MW-8 TPHd/TPHg/TPHmo w lo NA/<1/NA 5. 9/79/<10 110/1. 3/370 69/<1/370 <1/<1/<10 10/1. 3/140 Hig NA = not analyzed ay MW-2 in parts per million D. PARFITT 8/12/03 0 40 SCALE - FEET N <1/<1/<10 f er Soil sample location <1/<1/<10 hw 1999 excavation 10/20/120 MW-1 A at dw un ro. G ox 3. 6/<1/71 r pp A <1/<1/<10 31/110/84 101 62/<1/860 5. 5/18/49 80

Lois Green and Patricia Kelly Petition (Canton Café site) E. W. Pierce Co. Closed Case UST Site SWRCB Order WQ __ 05 -UST MW-7 Figure 4 Corrective Action Plan Implementation MW-4 MW-5 A Cafe Former UST Location MW-3 1990 excavation N MW-1 A 1999 excavation MW-8 ORC Injection 101 at dw un ro. G ox r pp A Monitor well location Hig w lo hw f er ay MW-2 D. PARFITT 8/12/03 0 40 SCALE - FEET 80 MW-6

Lois Green and Patricia Kelly Petition (Canton Café site) E. W. Pierce Co. Closed Case UST Site SWRCB Order WQ __ 05 -UST TPH-d 150 ppb to 460 ppb MW-7 Figure 5 TPH-g 670 to 1100 ppb TPH-d <50 ppb TPH-d 520 ppb TPH-g <50 to 64 ppb MW-4 MW-5 A TPH in Groundwater 2003** Cafe Former UST Location MW-3 (well destroyed in 1999) TPH-d 54 to 93 ppb TPH-d <50 ppb r pp A TPH-g 120 ppb MW-8 TPH-g 78 to 170 ppb N f er at dw un ro. G ox ** Range of concentrations reported for 1 st and 2 nd quarters of 2003 101 w lo Monitor well location MW-2 TPH-d 80 to 150 ppb WQOs for MUN Beneficial Use TPH-d = 100 ppb TPH-g = 5 ppb Hig TPH-g <50 ppb ay 1999 excavation MW-1 A hw 1990 excavation D. PARFITT 8/12/03 0 40 SCALE - FEET 80 TPH-d <50 ppb MW-6 TPH-g <50 ppb