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BROWN AND CALDWELL Well No MW-4 <br /> GROUNDWATER SAMPLE COLLECTION RECORD <br /> Project Name EZ - Serve, Stockton _ Job No 3003-05 Date 2100 -9 <br /> cation Station No 100966, 2537 Waterloo Rd'.® Auto Ave , Stockton, CA <br /> Samplers Name M c S.1 V ti tJ" A <br /> Weather Condttions iz a i <br /> 1 WATER LEVEL DATA (from TOC) TOC Elevation (from LS) <br /> a Depth to water (ft) - )4 S3` Water Table Elev <br /> b Total Well Depth = 90 13 ft Tape Corr (TC) <br /> c Length of Water Column = 36-'(00' (b -a ) Well Diameter 4"x 10' <br /> d Casing Volume - 0-3, 14 c,� (c x [gaVft casing]) 2-in casing =0 16 gaVft <br /> e Length of filter pack = 10 • 4-in casing =0 65 gaVft <br /> 6-in casing = 1 47 gaVft <br /> f Filter pack volume (e x [gaVft filter pack]) 6 5-in casing = 1 70 gaVft <br /> g TOTAL WELL VOLUME = 3 S Z4 (d + f) 8-in casing =2 60 gaVft <br /> 10-m casing =4 10 gaVft <br /> 12-in casing =5 00 gaVft <br /> 2 WELL PURGING DATA 8-in hole filter pack = 0 78gaVft <br /> w • 10-in hole fitter pack= 121 gaVft <br /> a Purge Method Z �� S v� ��r`t 12-in hole fitter 2ack= 1 47gaVft <br /> b Required Purge Volume (6 35.24 gallons per well volume)= t- <br /> c Field Testing, Equipment Used Y's -fig 5-00 S C <br /> .d Pump Rate <br /> e Method of GW Disposal 55 allon drum <br /> f Recovery Rate Slow (90% > 60min), Medium (90%30-60 min), st (90%< 10 min <br /> Volume <br /> Removed Spec Turbidity Color/ Pump <br /> (gal) Time T°c pH Conductivity (NTU's) Description SWL Placement <br /> 3-t `t r { <br /> 1 !l��i � � � L�, C- <br /> 1a�4 <br /> Z° I r✓'� `ar=t'-"a'L u P <br /> 3 SAMPLE COLLECTION Method Disposable Bailer _----Container 3 x 40 ml VOA Preservation HCL <br /> 0 Analysis TPH (gas) 8015, BTEX 8020 <br /> COMMENTS, REMARKS <br />