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Dunn <br /> ENVIRONMENTAL,INC. <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 2 <br /> SAMPLING EVENT: OTHER: Initial Sampling <br /> MONITORING GROUP: QUARTERLY SEMIANNUAL ANNUAL _ <br /> FIVE YEAR OTHER: <br /> r Sample Location: MW-10 Date: 514106 <br /> r <br /> Sample Media: GW X SW Leachate Other <br /> Sampler s Taco Fourie <br /> r-1 P O� <br /> t : Depth to Water: 20.36 ft. Well Depth: 41.35 ft. Well Diam.: 4 in. <br /> Well Casing Volume: 10.07 gal. Purge Volume: 30.21 gal. (3x WCV) <br /> Purge Start Time: 10:17 Purge Rate: 1.5 gpm <br /> Equipment used to purge: Super Twister Equipment used to sample: Super Twister <br /> Time Temperature pH Turbidity (NTtn Specific Conductance (mom) <br /> Approximate Gallons <br /> (C) (µmhos/cm) <br /> 10:23 17.7 6.78 12.4 1344 10.0 <br /> 10:29 17.7 6.78 4.18 1341 21.0 <br /> 10:34 17.9 6.81 2.68 1340 30.0 <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: Sunny and warm <br /> Notes: Water has slight odor _— <br />