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Dunn <br /> i1 VIRONMENTr11..NC. <br /> FIELD DATA SHEET <br /> &WELL DEVELOPMENT SHEET <br /> DE PROJECT NUMBER: 109-06 <br /> SITE: City of Riverbank Wastewater Treatment Plant PAGE 1 of 4 <br /> SAMPLING EVENT: 'OTHER: Development <br /> MONITORING GROUP: QUARTERLY SEMIANNUAL ANNUAL <br /> FIVE YEAR OTHER: <br /> Sample Location: MW-10 Date: 5/3/06 <br /> Sample Media: GW X SW Leachate Other <br /> Sampler(s): <br /> Taco Fourie <br /> Depth to Water: 20.00 ft. Well Depth: 40.90 ft. Well Diam.: 4 in. <br /> Well Casing Volume: 10.95 gal. Purge Volume: 109.5 gal. (3x WCV) <br /> Purge Start Time: 8:15 Purge Rate: -4 gpm <br /> Equipment used to purge: Bailer,submersible pump Equipment used to sample: <br /> Temperature Specific Conductance Equipment used to Approximate <br /> Time (C) pH Turbidity (NM (pmhos/cm) purge Gallons Purged <br /> 9:04 81.2 7.00 >999 1379 Bailer 16 <br /> 9:16 17.8 7.07 >999 1377 Bailer 26 <br /> 9:29 17.8 6.99 >999 1365 Bailer 35 <br /> 9:49 18.9 6.87 >999 1355 Truck Pump 51 <br /> 10:04 21.0 7.39 >999 1317 Truck Pump 70 <br /> 10:17 21.0 7.34 >999 1339 Track Pump 85 <br /> 10:22 20.3 7.19 29.8 1286 Truck Pump 110 <br /> 10:26 20.3 7.18 120 1261 Truck Pump 140 <br /> Sample Collection Time: 10:30 VOC collection Rate: 4500 ml/min. <br /> Duplicate QC Sample Collected? NO X YES Duplicate ID: <br /> Additional Analyses: <br /> Weather Conditions: <br /> Notes: Switched to peanut pump at approximately 50 gallons. Water has slight odor. Pumped until approximately 60 <br /> Gallons(9.54) Switched to pump on back of truck. <br />