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BROWN AND CALDWELL Well No. MW-5 <br /> GROUNDWATER SAMPLE COLLECTION RECORD <br /> Project Name EZ- Serve, Stockton Job No : 1567-04 —Date- 6-21 - 7,S <br /> Location - - Station No 100966, 2537 Waterloo Rd 0 Auto Ave , Stockton, CA <br /> Samplers Name Ak. S��Nae2 <br /> Weather Conditions: 6.9 a U/A4R AA <br /> 1 WATER LEVEL DATA. (from TOC) TOC Elevation (from LS) <br /> a. Depth to water(ft) = &0 S(o Water Table Elev <br /> b Total Well Depth = 90 82 ft Tape Corr (TC) <br /> c Length of Water Column = 30 2�. (b –a) Well Diameter 4'x 10' <br /> d Casing Volume = le'1 G ,a (c x [gaVft casing]) 2-in casing =016 gaVlt <br /> • 4-in casing =0 65 gaVft <br /> e Length of filter packs = /� a AL 6-in, casing = 1 47 gaVft <br /> f Filter pack volume = la 19,¢cr _(e x [gaVft filter pack]) 6 5-in casing = 1.70 gaVft <br /> g TOTAL WELL VOLUME = 31= }per (d + f) 8-in casing =2 60 gal/ft <br /> 10-in casing =410 gal/ft <br /> 12-In.casing =5 00 gaVft <br /> 2 WELL PURGING DATA: 8-in.hole filter packs =0 78gaVft <br /> t • 10-In hole filter pack= 1 21 gaVft <br /> a Purge Methal ��E� 'f P, 12-in hole filter ck= 1 47 aVft <br /> b Required Purge Volume (a 31 � gallons per well volume) = 9S, � � <br /> c Field Testing, Equipment Used <br /> d Pump Rate o D G?04 <br /> e Method of GW Disposal .. 55 gallon drum . <br /> f Recovery Rate- Slow(90%> 60min), Medium (90%30-60 min), Fast (90%< 10 min) <br /> Volume <br /> Removed Spec Turbldrty Color/ Pump <br /> (gal) Time T°c PH Conductivity (NTU's) Description SWL Placement <br /> C�1 S At— <br /> (o d(,r,2 $4,�- <br /> 19� 0 �o <br /> o T-3 <br /> 0101 �i,D <br /> 3 SAMPLE COLLECTION Method Disposable Bailer Container 3 x 40 ml VOA Preservation HCL <br /> 0 Analysis TPH s 8015, BTEX 8020 <br /> COMMENTS, REMARKS <br />