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Monitoring Well Purging and FLD-103 <br /> V Sampling Log Revision 1.0 <br /> Jul-08 <br /> Bmnch:54-Modesto Date: Ur 30s`r2- Page ` of <br /> ATC Representative(s): M Project:0888 Stockton,Tosco Bulk Terminal 10013 <br /> Location:3505 Navy Drive Stockton,CA <br /> Contact Information: tC]. �Y Project No: 75.75118.0888 Task No:54001 <br /> Well ID: MW-18C ^ Contractor <br /> Weather. U� Temperature: <br /> Purging&Sampling Instrumentation& Method <br /> Water Level Meter(reodewD): A`S� ZC`� Interface Probe(nmewD):NIA <br /> Water Quality Meter(W&MU):YSI 556 Decontamination Method: Alconox and water rinse <br /> Purging Method: _Disp.Bailer _Centrifugal Pump _Waterra _ Peristaltic Pump Other.,_ <br /> 3 Well Volumes Low Flow Micro Purge =Intake Depth(feel below TOC) <br /> Sampling Method: Teflon Bailer Disposable Bailer Dedicated Tubing Other: <br /> Casing Volume Information Purging Calculations <br /> Casing Diameter(Circle): 2" 4" 6" Other Casing <br /> ��Volumes(CV): r��/ <br /> ' Casing Multiplier(CM)(gaiono.ty 6 5 1.47 WCtpw, xCMIC =1l/hIO(CV)(gel) x3.0 CV(gaq=217PV <br /> Monitoring Measurements <br /> ' Depth to LNAPL(feet): Top of Screen ITotal Well Depth(feet): 57 / 72.4 <br /> Depth to Water(DTW)(feet): lWater Column(WC)(feet): <br /> LNAPL Thickness(it): Purging Start Time: 1 <br /> ' Purging Data <br /> Time DTW Cum.Vol. Tem Specific Dissolved ORP <br /> Purged p Cond. Oxygen pH (mV) Other <br /> ' (24 Hours) (Feat) (Gallons) rC) (MS/cm) (mg,L) <br /> =776 S 2 . 7 2 'T 32 -129. <br /> ' ' SIV -12T, `I -27(,-,-273,Z7 I I, VLO , <br /> 2$ 3D .21. 91!- 2,6601 2,95 7, SO -132,G 2ez-0122 <br /> ' t D 3 Z 121S4 2.6U5 1 2, 7 :5 3 •-123;6 dezr <br /> Sample Data <br /> ' Sample ID:MW-18C ITIme of Sampi-e—i- I I Filtered <br /> Preservatives Analytical Parameters <br /> Container Types,Volumes,&Quantifies: (veYno) <br /> Glass,40mL,6 N HCl 8015M;82606 <br /> ' Ambers,1 L,2 N None 8015M <br /> ' Well Recovery Data <br /> Maximum Drawdown.(OTWm)(feet) Approximate Flow Rate(GPM): J <br /> Recovery Type:. _ Fast —Slaw %Recovery=. <br /> ' Purge Water Disposition(Attach Drum Inventory Log-FLD 108): <br /> Comments:` <br />