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13 July 2012 AGE-NC Project No.96-0236 Page 7 of 13 • Temperature ranged from 20.4 °C (MW-4) to 25.1 °C (DPE-2); • DO ranged from 0.56 mg/I (MW-4)to 11.71 mg/I (DPE-2)and from 6.1%to 138.0%; • ORP ranged from -7.2 (MW-1A) to 220.1 mV (DPE-2); • Salinity ranged from 0.62 (DPE-2) to 1.80 (DPE-1); and • TDS ranged from 0.806 g/I (DPE-2) to 2.223 g/I (DPE-1); 4.2. ANALYTICAL RESULTS OF GROUND WATER SAMPLES Baseline ground water samples were collected on 13 January 2012, while post-ISCO injection ground water samples were collected on 25 April, and 02, 09,16 May 2012. Analytical results of ground water samples collected during baseline and post-ISCO injection sampling events are summarized in Tables 3, 4 and 5. Laboratory reports, [Cal Tech Environmental Laboratories (CTEL) Project Nos. CT214- 1201100, -1204169, -1205021, -1205072, -1205124), quality assurance/quality control (QA/QC) and chain-of-custody forms are included in Appendix B. Electronic deliverable format (EDF) files were uploaded to the State GeoTracker database under confirmation numbers 3285038769, 8163105785, 2955091118. The remaining EDFs will be uploaded upon receipt. 4.2.1. Baseline Sampling Event: Analytical Results On 13 January 2012, baseline ground water samples were collected from wells MW-1A, MW-2, MW-4, MW-9, DPE-1 and DPE-2. The following is a summary of the analytical results: • Total Petroleum Hydrocarbons(TPH-g)were detected in the samples collected from wells MW-1 A, MW-2, MW-4, MW-9, DPE-1 and DPE-2 at concentrations between 1,200 (MW-2) micrograms per liter (Ng/1) and 110,000 pg/I (MW-4). • One or more benzene,toluene,ethylbenzene and total xylenes(BTEX)constituents were detected in samples collected from MW-1 A, MW-2, MW-4, MW-9, DPE-1 and DPE-2 at maximum concentrations of 22,000 pg/1 benzene, 18,000 pg/I toluene, 5,700 pg/I ethylbenzene and 28,500 pg/I total xylenes (MW-4). • Fuel additive tertiary amyl methyl ether (TAME) and lead scavenger 1,2- dichloroethane (1,2-DCA)were detected in samples collected from wells MW-1 A, Advanced GeoEmirontnental,Inc.