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WORK REQUEST FORM <br /> Date of Request 9111/02 Requested Completion Date 9/12-13102 <br /> Proj Name Tulebur e Warehouse Project Number 98-263 <br /> Site Address 8200 N Hwy 99, Stockton, CA Task none <br /> Project Manager John Lane Field Tech A Scoma <br /> Client Contact Ra Ba Netto Phone No 209-468-0433 <br /> Regulatory Contact Jeff Wong Phone No 209-468-0335 <br /> Approval Tzlff <br /> 1 Z o�- Completion Date P r e n c- <br /> READ AND UNDERSTAND THIS WORK REQUEST PRIOR TO ARRIVING ON <br /> SITE!!!!! <br /> Check in with store clerk "Ab" when you arrive on site Let him know thatyou'll be working <br /> around the monitoring wells <br /> . Open all well lids and allow to stabilize while you discharge certain drums containing ND water as <br /> follows purge water from wells MW7, MW8, and MW9(L3) for March 2002 sampling <br /> Measure DTW/DTB in each well DTW approximately 58-62 feet Order is MW9(B), MW7 <br /> MW8, MWS MW6 (RINSE PROBE), N W2, MW3, MW4, MW1 MWl, MW2, MW3, MW4, <br /> and MW6 are hot MW5 had very low levels MW7 MW8 and MW9(B) were clean Rause WL <br /> probe between wells. Use interface probe on well MW1; well MWI has free product. <br /> Purge and sample wells in order The order is MW9(B), MW7, MW8, MW5, MW6, MW2, <br /> MW3, MW4, MW 1 Well MW 1 is likely to have free product, bail free product from well MW 1 <br /> Wells MW1_and MW9(b) are 4-inch, others are 2-inch diameter Measure water parameters (.pH, <br /> conductivity, tem until they stabilize (usually 3-5 casing volumes Expected purge volumes <br /> are approximately 8-12 gallons for wells MW5-MW8, 10-14 gallons for MW2-MW4 and 130- <br /> 150 gallons for MW9(B) Be sure to decon the outside of the pump and hoses between wells <br /> MW2, MW6, MW3, MW4, and MW1_(if sampled). <br /> Contain groundwater in drums If you have enough drums, try to dedicate_drum(s) for each well <br /> If you need to combine drums its okay to combine Lny combination of wells MW 1 MW2 MW3 <br /> MW4, MW6 You should have drums on site from last sampling-will need a minimum of 7 drums, <br /> and up to 11 drums if you dedicate for each well Clearly mark all drums with_contents and date_ <br /> dwell #, volume, date)- <br />