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BROWN Arm CALDWELL Well No MW-4 <br /> GROUNDWATER SAMPLE COLLECTION RECORD <br /> dr <br /> olect Name EZ- Serve Stockton Job No �©0 3-�5 Date <br /> Station No 100966, 2537 Waterloo Rd @ Auto Ave , Stockton, CA <br /> Samplers Name M�--C:�i✓6""1 P, <br /> Weather Conditions C WA <br /> 1 WATER LEVEL DATA (from TOC) TOC Elevation (from LS) <br /> a Depth to water(ft) — &15 � Water Table Elev <br /> b Total Well Depth = 90.13 ft Tape Corr (TC) <br /> c Length of Water Column —_ Z&,R 3 _(b —a) Well Diameter 40x 10' <br /> d Casing Volume = 17 10 (c x [gaVft casing]) 2-in casing =0 16 gaitft <br /> e Length of filter pack = to` • 4-In casing =0 65 gaVft <br /> 9t Pa 6-in casing = 1.47 gaitrt <br /> f Filter pack volume = 12 ! (e x [gaVft filter pack]) 6 5-in casing = 1 70 gaVft <br /> TOTAL WELL VOLUME = Z�.bO6 d. + f) 8-in. casing =2 60 gaVft <br /> g _( 10-in casing =410 gaVft <br /> 12-in casing =5.00 gal/ft <br /> 2 WELL PURGING DATA: 8-in hole filter pack =0 78gaVft <br /> << • 10-in hole filter pack= 121 gaVft <br /> a Purge Method z �L�' �V� +uhf 12-in hole filter k= 1 4ZgaVft <br /> b Required Purge Volume(® gallons per well volume) _ S, gl (-A-L <br /> c Field Testing; Equipment Used ySi 4 <br /> d Pump Rate � -3 C��►n <br /> e Method of GW Disposal 55 allon drum <br /> f Recovery Rate Slow(90%>60min), Medium (90%30-60 mi ast (9 < 10 min) <br /> Volume _ f <br /> i <br /> Removed Spec Turbidity Color/ Pump <br /> Syy� Placement <br /> {gal) Time TOC pH Conductivity (NTU's) Description <br /> 3n r�� Zz.� � , i q�� OIWAR,F0ELo00�.- <br /> (120 f;5-4-5 2210 7 10 47� SA w�E k <br /> ZI, q 10 ��8 eAKAF: <br /> 01 SPf 4��p <br /> SAMPLE COLLECTION. Method _Disposable Bailer Container 3 x 40 ml VOA Preservation HCL <br /> Analysis TPH�s)8015, BTEX 8020 <br /> COMMENTS, REMARKS <br />