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BROWN AND CALDWELL Well No MW-4 <br /> GROUNDWATER SAMPLE COLLECTION RECORD <br /> Project Name EZ- Serve, Manteca„ _. Job No 3003-03 Date z-Z 7 (� <br /> 4101cation Station No 100878, 1012 West Yosemite Ave , Manteca, CA <br /> Samplers Name M[ /6;Ji.1P,� <br /> Weather Conditions -F,,,,zr—Ly C.c�,br, -- <br /> 1 WATER LEVEL DATA (from TOC) TOC Elevation (from LS) <br /> a Depth to water(ft) - 1�,�3 t Water Table Elev <br /> b Total Well Depth = 28 64 ft Tape Corr (TC) <br /> c Length of Water Column - j 7 ' (b -a ) Well Diameter 4'x 10' <br /> d Casing Volume ct 4 (c x [gaVft casing]) 2-in casing =0 16 gal/ft <br /> • 4-in casing =0 65 gal/ft <br /> e Length of filterpack = a 6-in casing = 1 47 gaVft <br /> f Filter pack volume (e x [gaVft filter pack]) 6 5-m casing = 1 70 gaVft <br /> g TOTAL WELL VOLUME 04 (d + f) 8-in casing =2 60 gaVft <br /> 10-in casing =4 10 gaVft <br /> 12-in casing =5 00 gal/ft <br /> 2 WELL PURGING DATA 8-in hole filter pack = 0 78gal/ft <br /> • 10-m hole fifter pack= 121 gaitft <br /> a Purge Method 'Fr'� rJP �N i- f�r`� 2/� 12-in hole filter pack= 1 47gaVft <br /> b Required Purge Volume (® gallons per well volume) _ 3 13(7A L <br /> c Field Testing, Equipment Used 1 5 J( C <br /> d Pump Rate 1 Y C7 G7 P Vl <br /> e Method of GW Disposal 55 gallon drum <br /> f Recovery Rate Slow(90% > 60min), Medium (90%30-60 min ast (90%< 10 min <br /> Volume <br /> Removed Spec Turbidity Color/ Pump <br /> (gal) Time T°c PH Conductivity (NTU's) Description SWL Placement <br /> f + f% 6Ci04 1 01.2 `011 V1�� S�4iEJL17/ �xll(-[4-a � �EJ <br /> k <br /> 3 SAMPLE COLLECTION Method Disposable Bader Container 3 x 40 ml VOA Preservation HCL <br /> Analysis TPHAgas)8015, BTEX 8020 <br /> COMMENTS, REMARKS <br />