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13 July 2012 <br /> AGE-NC Project No.96-0236 <br /> Page 6 of 13 <br /> 387.5%; <br /> • ORP ranged from -83.0 (MW-2) to 517.0 mV (DPE-1); <br /> • Salinity ranged from 0.43 (DPE-2) to 2.68 (DPE-1); and <br /> • TDS ranged from 0.862 g/I (DPE-2) to 3.236 g/I (DPE-1). <br /> 4.1.4. Post-ISCO Injections Monitoring Event No. 3 <br /> On 09 May 2012, ISCO field parameters as described in section 3.3 were collected from <br /> wells MW-1A, MW-2, MW-4, DPE-1 and DPE-2 as part of post-ISCO injection ground <br /> water monitoring (Table 2). The following is a summary of the results: <br /> • Depth to ground water measurements ranged between 8.35 feet(DPE-1) btoc and <br /> 8.83 feet (DPE-2) btoc; <br /> • pH ranged from 1.76 (MW-1A) to 5.54 (MW-4); <br /> • SC ranged from 1,018 pS/cm (DPE-2) to 3,827 pS/cm (DPE-1); <br /> • Temperature ranged from 19.9 °C (MW-4) to 24.1 nC (DPE-2); <br /> • DO ranged from 1.32 mg/I (MW-4)to 9.84 mg/1 (DPE-2)and from 14.5%to 117.8%; <br /> • ORP ranged from -7.2 (MW-1 A) to 228.1 mV (DPE-1); <br /> • Salinity ranged from 0.51 (DPE-2) to 2.15 (DPE-1); and <br /> • TDS ranged from 0.672 g/I (DPE-2) to 2.639 g/I (DPE-1). <br /> 4.1.5. Post-ISCO Injections Monitoring Event No. 4 <br /> On 16 May 2012 field parameters were collected from wells MW-1A, MW-2, MW-4, DPE-1 <br /> and DPE-2 as part of post-ISCO injection groundwater monitoring (Table 2).The following <br /> is a summary of the results: <br /> • Depth to groundwater measurements ranged between 8.54 feet(DPE-1) btoc and <br /> 9.35 feet (MW-4) btoc; <br /> • pH ranged from 2.88 (DPE-1) to 6.69 (MW-2); <br /> • SC ranged from 1,210 pS/cm (DPE-2) to 3,204 pS/cm (DPE-1); <br /> Advanced GeoEnvironmentai„Inc. <br />