Laserfiche WebLink
CATELLUS DEYELOPMENT CORPORATION Date 5/6/97 <br /> WEST WEBER SITE,STOCKTON Set up time 1105 <br /> QUARTERLY GROUNDWATER SAMPLING Weather Clear,Windy <br /> FIELD NOTES/ERM WEST 2996 00 Samplers DEM/CJH <br /> WELL # MW-2 <br /> HISTORIC CONCENTRATIONS <br /> ' Locahon Construction Depth 25 5 ft bgs <br /> Construction 2 inch pvc/ Measured Depth 23 36 <br /> ' Groundwater Zone Purge Method Grundfos Pump(2") <br /> Screened Interval 5-25 ft bgs Pump Intake —19' <br /> Sample Method Disposable Bailer Depth to Water 4 30 <br /> Sample Preservation Method Ice Height of Water Column 19 06 <br /> Volume of one casing 311 gallons <br />' Purge Start Date 5/6/97 <br /> Purge Start Time 1141 Purge calculations <br /> Discharge Rate —1 gpm 19 06 ft x 163 gals / ft x 3 = <br /> Purge End Time 1151 9 32 gallons <br /> Time Gallons Temp°C pH EC ps/cm Water clarity <br /> 1144 3 2118 650 922 Clear <br /> 1147 6 2124 649 925 Clear <br /> 1151 9 2118 646 936 Clear <br /> ANALYSES REQUIRED SAMPLE TIME CONTAINER TYPE FILTRATION? <br /> Fe+2 1220 2 x 40 ml VOA HCL <br /> pH,Conductivity,Chloride 500 ml Poly <br /> Nitrate 500 ml Poly H2SO4 <br />' Dissolved Methane,Dissolved CO2 2 x 40 ml VOA <br /> BTEX,Trimethylbenzene,TPHg 4 x 40 ml VOA HCL <br /> TPHd 2 x 1 Liter Amber Glass <br /> Dissolved Mn 500 ml Poly HNO3 In the Field <br /> FIELD OBSERVATIONS(Well condition,repairs needed) <br /> PID reading when well cap opened 0 Q ppm Disposal method of purge water Drummed an site <br /> Dissolved Oxygen reading 0 16 mg/l Decontamination procedure Alconox/DI Rinse <br /> Redox Measurement 42 mV <br /> Other notes <br /> Sampler Signature(s) �,,�'C�L t-S' <br />