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geological rech4xs lrcc Page 10 <br /> ' Groundwater Morutonng Report <br /> Project No 425 2 <br /> April 27,2006 <br /> ' • Oxidation-Reduction Potential (ORP) measurements were positive in all the Zone B <br /> monitoring wells <br /> ' • Electric Conductivity (EC) measurements taken in Zone B ranged between 1,610 <br /> (MW-106) and 1,637 (Dnhos/cm (MW-2X) <br /> • pH measurements taken in Zone B ranged between 6 96 (MW-2X) and 8 09 (MW- <br /> 106) <br /> • The average groundwater temperature in Zane B was 71 5°F <br /> Zone C &D <br /> • Dissolved Oxygen (DO) measurements taken in Zone C & D ranged between 0 42 <br /> ' (MW-201) and 0 84 ppm (MW-107) <br /> • DO levels above 1 ppm are conducive to aerobic biodegradation <br /> • Oxidation-Reduction Potential (ORP) measurements were positive in the Zone C <br /> monitoring wells <br /> • Electric Conductivity (EC) measurements taken in Zone C & D ranged between 1,453 <br /> (MW-202) and 1,935 (Dmhos/cm (MW-107) <br /> ' • pH measurements taken in Zone C & D ranged between 6 88 (MW-201) and 7 88 <br /> (MW-107) <br /> • The average groundwater temperature in Zone C &D was 66 3°F <br /> r <br /> Domestic Wells <br /> ' • Domestic well data is not summarized in a table <br /> + Domestic well field parameter data can be found on the quarterly field monitoring <br /> summary reports in Appendix C <br /> ' • 1697 Durham Ferry <br /> + DO is 0 57 ppm <br /> • ORP is 52 3 mV <br /> ' • EC measured 1,317 (Dmhos/cm <br /> • PH measured 7 47 <br /> ' + Temperature 56 7°F <br /> • 33148 Highway 33 <br /> • DO is 0 70 ppm <br /> ' • ORP is 512 mV <br /> • EC measured 1,268 Omhos/cm <br /> • PH measured 7 52 <br /> ' • Temperature 51 8°F <br /> 1 <br />