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' (&V `_ Monitoring Well Purging and FLD-103 <br /> Smplaing Log Revision 1.0 <br /> Jul-08 <br /> ATC Branch:54-Modesto Date: C' Page of <br /> ATC Representative(s): Project:0888 Sto t n Tosco Bulk Terminal 10013 <br /> Location:3505 Navy Drive Stockton,CA <br /> Contact Information: Project No: 75.75118.0888 Task No:54001 <br /> Well ID: MW-20 Contractor: <br /> ' Weather: �n� Temperature: <br /> Purging & Sampling Instrumentation &Me hod <br /> Water Level Meter(rnoaawo): U, 14 Interface Probe(Wdewo):N/A <br /> Water Quality Meter(wodewDy YSI 556 Decontamination Method: Alconox and water rinse``11 <br /> Purging Method: Dlsp.Bailer _Centrifugal Pump Waterra Peristaltic Pump Other: ATUr1 <br /> ' 3 Well Volumes Low Flow _ Micro Purge _ Intake Depth(feet below TOC) <br /> Sampling Method: }Teflon Bailerisposable Bailer _ Dedicated Tubing Other: <br /> Casing Volume Information Purging Calculations <br /> Casing Diameter(Circle): 2" 4" 6" Other Casing Volumes(CV): <br /> Casing Multiplier(CIANge msKaoty 16 6 5 1.47 W62 • I/ x CMO'i•o =J_!(CV)(gap x 3A CV(gal�ZPV <br /> Monitoring Measurements <br /> Depth to LNAPL(feel): Top of Screen I Total Well Depth(feet): 9.5 1 29.5 '.;L5; <br /> Depth to Water(DTW)(feet): J , G1 iWater Column(WCxfeet): r <br /> LNAPL Thickness(fl): Purging Start Time: •�y C> <br /> Purging Data <br /> Time DTW Cum.Vol.' Tem Specific Dissolved PH ORP Other Purged P Cond. Oxygen (mV) <br /> (24 Hours) (Feet) (Gallons) (°C) (ms/cm) (mill <br /> ± ± <br /> 04, <br /> 2, a3. <br /> 2.E x.26 n, 4 S , r <br /> V 0 " 3�sYS— .?6 ) 2 ,27<1Y 3.31� .Zg <br /> ' Sample Data <br /> Sample ID:MW-20 Time of Sample: <br /> Filtered Preservatives Analytical Parameters <br /> Container Types,Volumes,&Quantities: ryaslrw> <br /> Glass,40mL,6 N HCl 8015M;82608 <br /> Ambers, 1 L,2 N None 8015M <br /> ' Well Recovery Data <br /> Maximum Drawdown(DTVVm)(feet): n Approximate Flow Rate(GPM):_ <br /> ' Recovery Type: Fast _Slow %Recovery- <br /> Purge Water Disposition(Attach Drum Inventory Log-FLD 108): <br /> Comments: <br />