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BROWN AND CALDWELL Well No MW-4 <br /> GROUNDWATER SAMPLE COLLECTION RECORD _ <br /> Project Name EZ-Serve Manteca Job No . 1565-04 Date' <br /> ' Location Station No 100878, 1012 West Yosemite Ave , Manteca, CA <br /> Samplers Name �ll AP <br /> Weather Conditions <br /> 1 WATER LEVEL DATA (from TQC) TOC Elevation (from LS) <br /> a Depth to water(ft) = 14-- Water Table Elev <br /> b Total Well Depth = 28 64 It Tape Corr. (TC) <br /> c Length of Water Column - 1,1, (b -a ) Well Diameter 4"x 10" <br /> d Casing Volume = 1.S AL- (c x (gaVft casing]) 2-In. casing =016 gajfft <br /> • 4-in. casing =0 65 gall <br /> e Length of finer pack = a+�`� _10 6-in casing = 1 47 gart <br /> f Filter pack volume = a olkL (e x (gaVft filter pack]) 6 San casing = 1 70 gaVft <br /> I 8-in casing =2.60 gaiRt <br /> g TOTAL WELL VOLUME 19 J ra (d + f) 10-in casing =410 gaVft <br /> 12-in casing =5 00 gall <br /> 2 WELL PURGING DATA 8-in hole filter pack =0 78gaIN <br /> • 10-in hole filter pack= 1 21gallft <br /> a Purge Method j r 4 0,P lbu�I!A 12-in hole filter pack= 1 47 aVtf <br /> b Required Purge Volume (6 I` gallons per well volume)= 5 D U <br /> c Field Testing; Equipment Used <br /> d Pump Rate1-5 2C21 <br /> f <br /> e Method of GW Disposal 55 gallon drum <br /> f Recovery Rate Slow(900/6 >60min), Medium (90%30-60 min), 0%< 10 min) <br /> Volume <br /> Removed Spec Turbidity Color/ Pump <br /> (gal) Time 'r°c pH Conductivity (NTU`s) Description <br /> SWL Placement <br /> r �3 Ub qd <br /> S 1 40 T�l <br /> 3 <br /> I I <br /> 3 SAMPLE COLLECTIOW,Method Disposable Bader Container 3 x-40 ml VOA Preservation HCL <br /> I <br /> ` I�Anajysis I TPH (gas)'8015, BTEx 8020 I <br /> COMMENTS, REMARKS <br />