Laserfiche WebLink
MONITORING WELL FIELD SAMPLING LO? GEO <br /> I N C O R P O R A T E D <br /> Project: South Lathrop Specific Plan <br /> Project No. <br /> Location: Lathrop,CA Well ID <br /> Technician: <br /> Activity: ® Quarterly Sampling ❑ Develop/Sample <br /> WELL SECURITY F Date <br /> Well Stand Pipe Set in Concrete? Yes No Comments <br /> Well Casing Equipped With Well Seal and Lock? Yes No <br /> WELL CONSTRUCTION AND WATER LEVEL DETAILS Date <br /> Well Type Monitoring ❑ Extraction Well with Pump ❑ Other <br /> Well Diameter Free Product Measurement <br /> DTW(fbtoc) (Enter measurements for wells with free product history) <br /> BOC(fbtoc) Enter"0.0" if no measurable free product ---*I WCV Factors <br /> WC(f) DTFP(fbtoc) 2" = 0.17 <br /> WCV(gal) DTW(fbtoc) 4" = 0.66 <br /> 3 X WCV(Purge Vol) FPT(ft) 6" = 1.50 <br /> PURGING, SAMPLING AND RECON EQUIPMENT Date <br /> Purging: ❑ Disposable ❑ 12-V ❑ Subm. Comments <br /> Bailer Pump Pump <br /> Sampling: ❑ Disposable ❑ 12-V ❑ Subm. Other <br /> Bailer Pump Pump ❑ <br /> Decon: Was purge pump decontaminated before and after this use? ❑ Yes ❑ No <br /> Decon Product: TSP/Alconox Decon Rinse: <br /> PURGE WATER STORAGE/DISPOSAL: None,Discharged to Land Date <br /> PHYSICAL PARAMETERS Date <br /> Time Volume Temp pH EC Redox DO DTW 80% <br /> Purged C degrees) Recovery <br /> ❑ Sample collected through groundwater treatment system using active extraction pump;no purging required. <br /> LABORATORY ANALYSIS <br /> Number/'Type Containers VOA's I-liter Ambers 500ml Plastic <br /> Preservative: See Sampling Analysis Plan <br /> Analysis: See Sampling Analysis Plan <br /> Laboratory/TAT: Excelchem/Std. <br /> DTW=Depth to Water fbtoc=feet below top of casing <br /> BOC=Bottom of well Casing WC=Water Column Height <br /> DTFP=Depth to Free Product WCV=Water Column Volume(gallons)=WC X WCV Factor <br /> FPT=Free Product Thickness <br />