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BROWN Arra CALDWELL Well No MW-7 <br /> GROUNDWATER SAMPLE COLLECTION RECORD <br /> Project Name EZ- Serve Stockton Job No : 1667-04 Date <br /> Location• Station No 100966, 2537 Waterloo Rd 0 Auto Ave , Stockton, CA <br /> Samplers Name t'rvAA <br /> Weather Conditions r . e -- <br /> 1 WATER LEVEL DATA (from TOG) TOC Elevation (from LS) <br /> a Depth to water(ft) = t00,(a0� Water Table Elev <br /> b Tota!Well Depth = 86 68 ft Tape Corr (TC) <br /> c Length of Water Column = -a) Well Diameter 2'x 8' <br /> d Casing Volume = j �A,c (c x [gal/ft casing]) • 2-In casing =0.16 galIft <br /> e Length of filterpack = x/0 4-in. casing =0 65 gaVft <br /> .- 6-in. casing = 1.47 gaVtt <br /> # Filter pack volume = T �k (e x (gal/ft filter pack)) 6 6-in casing = 1 70 gaVft <br /> 8-in casing =2.60 gal/ft <br /> g TOTAL WELL VOLUME _ (�� r li (d + #) 10-in.casing =4.10 gaVrtt <br /> 12-In casing =5.00 gal/ft <br /> 2. WELL PURGING DATA- 8-in.hole filter pack = 0 78gaVft <br /> a Purge Method <br /> ,( f u 4410-in hole filter pack= 1 21gaVft <br /> � C su3 12-in hole filter ack= 1 47 aYft <br /> b Required Purge Volume (® 1 gallons per well volume) = 3 6- <br /> c <br /> c Field Testing; Equipment Used <br /> d Pump Rate (� D <br /> e Method of GW Disposal 55 gallon drum <br /> f Recovery Rate Slow(901%>60min), Medium (90%30-60 min), 29 <br /> 0%< 10 min) <br /> Volume <br /> Removed Spec Turbidity Color/ Pump <br /> (gal) Time T9c pH Conductively (NTU's) Description SWL Placement <br /> 11-11 ,1- ' 5 w U �b <br /> d� 1r52 d11 l� l �S�D &4ei���� o <br /> q <br /> 134 OUL i I 5 CG&Ae j u <br /> 0 oz S vm� <br /> 11AMAe, /1-1 , I 71b l "D <br /> T- <br /> 3 SAMPLE COLLECTION Method Disposable_Bailer Container 3 x 40 ml VOA Preservation HCL <br /> Analysis TPH (gas)8015, BTEX 8020 <br /> COMMENTS, REMARKS <br />