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Fernando Place November 2013 <br /> 1201 South Center Street, Stockton <br /> Claim No: 12186 <br /> Most Recent Concentrations of Petroleum Constituents in Soil <br /> Constituent Maximum 0-5 feet bgs Maximum 5-10 feet bgs <br /> [mg/k date) [m /k date sample name] <br /> Benzene <0.003 03!08/99 2.35 04/28/98 BP-1-8 <br /> Eth (benzene <0.003 03/08/99 2.35 04/28/98 BP-1-8 <br /> Naphthalene NA NA <br /> PAHs NA NA <br /> NA: Not Analyzed, Not Applicable or Data Not Available <br /> mg/kg: Milligrams per kilogram, parts per million <br /> <: Not detected at or above stated reporting limit <br /> PAHs: Polycyclic aromatic hydrocarbons <br /> Most Recent Concentrations of Petroleum Constituents in Groundwater <br /> Sample Sample TPHg Benzene Toluene Ethyl- Xylenes MTBE TBA <br /> Date (Ng/L) (pg/L) (pg/L) Benzene (pg/L) (Ng/L) (pg/L) <br /> p /L <br /> MW-1 06/18/13 150,000 18,000 36,000 1,700 9,100 <1 <10 <br /> MW-2A 06/18/13 720 11 121 1.6 4.6 <1 <10 <br /> MW-2B 06/18/13 7,300 34 55 90 350 <1 <10 <br /> MW-3A 06/18/13 14,000 84 26 81 128 <1 <10 <br /> MW-3B 06/18/13 8,000 110 14 61 149.4 <1 <10 <br /> MW4A 06/17/13 40,000 4,400 95 620 4,150 <1 <10 <br /> MW4B 06/17/13 19,000 860 300 170 438 <1 <10 <br /> MW4C 06/17/13 5,000 260 200 83 347 <1 <10 <br /> MW4D 06/17/13 14,000 7,700 1,200 220 800 <1 <10 <br /> MW4E 06/17/13 8,000 470 300 140 550 <1 <10 <br /> MWSA 06/17/13 25,000 4,500 140 550 1,160 <1 <10 <br /> MWSB 06/17/13 10,000 150 150 60 442 <1 <10 <br /> MWSC 06/17/13 9,400 130 140 52 217 <1 <10 <br /> MWSD 06/17/13 2,100 25 20 7.2 27.8 <1 <10 <br /> MWSE 06/17/13 6,000 150 160 53 207 <1 <10 <br /> MW6A 05/19/11 140 3.5 6.1 <0.5 <0.5 <1 <10 <br /> MW6B 06/17/13 14,000 180 41 31 75 <1 <10 <br /> MW6C 06/17/13 2,900 77 12 25 51.9 <1 <10 <br /> MW6D 06/17/13 5,600 180 25 48 113 <1 <10 <br /> MW7B 06/17/13 14,000 280 18 48 79 <1 <10 <br /> MWBA 06/17/13 1,000 1.2 2.2 8.2 34 <1 <10 <br /> MW9A 06/17/13 <50 <0.5 4.1 <0.5 2.5 <1 <10 <br /> MW10 06/17/13 90,000 4,500 3,200 1,900 9,800 <1 <10 <br /> WQOS 5 0.15 1 42 29 17 5a 1,200 <br /> NA: Not Analyzed, Not Applicable or Data Not Available <br /> pg/L: Micrograms per liter,parts per billion <br /> <: Not detected at or above stated reporting limit <br /> TPHg: Total petroleum hydrocarbons as gasoline <br /> MTBE: Methyl tert-butyl ether <br /> TBA: Tert-butyl alcohol <br /> WQOs: Water Quality Objectives, Regional Water Board Basin Plan <br /> Regional Water Board Basin Plan does not have a numeric water quality objective for TPHg <br /> Secondary maximum contaminant level (MCL) <br /> California Department of Public Health, Response Level <br /> Page 8 of 14 <br />