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Qeologfcal TeChfikS Inc Page 9 ' Groundwater Morutonng Report Prosect No 425 2 November 8, 2005 1 ' Domestics Wells: • Laboratory results are summarized in Table 10 a Three domestic wells (1697 Durham Ferry, 1600 `A' Durham Ferry and 31448 Hwy ' 33) were tested and found non-detect above laboratory reporting linuts for all analyzed constituents ' AdditionaI Tested Parameters—Table 11: Zone A • Dissolved Oxygen (DO) measurements taken in Zone A ranged between 0 12 (MW-2) and 134 ppm (MW-4) Y DO in Zone A averaged 0 85 ppm DO levels above 1 ppm are conducive to aerobic biodegradation ' • Oxidation-Reduction Potential (ORP) measurements were negative in all the Zone A monitoring wells Electric Conductivity (EC) measurements taken in Zone A ranged between 1,274 ' (MW-1) and 2,091(Dmhos/cm(MW-6) ® pH measurements taken in Zone A ranged between 6 85 (MW-2) and 7 92 (MW-5) O The average groundwater temperature in Zone A was 70 5°F Zone B ' 6 Dissolved Oxygen (DO) measurements taken in Zone B ranged between 149 (MW- 106) and 198 ppm (MW-2X) O DO in Zone B averaged 180 ppm DO levels above 1 ppm are conducive to aerobic ' biodegradation ® Oxidation-Reduction Potential (ORP) measurements were negative in all the Zone B monitoring wells O Electric Conductivity (EC) measurements taken in Zone B ranged between 1,784 (MW-101) and 1,848 (Dmhos/cm (MW-2X) • pH measurements taken in Zone B ranged between 7 77 (MW-101) and 7 80 (MW- 2X and MW-106) 0 The average groundwater temperature in Zone B was 67 6°F Zone C & D e Dissolved Oxygen (DO) measurements taken in Zone C ranged between 2 11 (MW- 102) and 2 34 ppm (MW-201) • DO in Zone C averaged 2 23 ppm DO levels above 1 ppm are conducive to aerobic biodegradation ' o Oxidation-Reduction Potential (ORP) measurements were negative in the Zone C monitoring wells • Electric Conductivity (EC) measurements taken in Zone C ranged between 2,022 (MW-201) and 2,073 (Dmhos/cm (MW-102)