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OCTIV <br /> March 30, 1993 445 N.San Joaquin St. <br /> Job No. 4780200 1. PROPOSAL APPROVED SUBJECT TO: <br /> A. Obtaining sanitation permit ❑ <br /> Public Health Services, San Joaquin County B. Obtain yell/pump permit n j <br /> 4.45 North San Joaquin Street C. Change noted <br /> Stockton, CA 95201 2. PROPOSAL DENIED <br /> 3. REMARKS Atl ND <br /> ATTN: Ms. Mary F. Meays + <br /> SUBJECT: WORKPLAN ADDENDUM QIP r 6 <br /> 820 South American Street WSPL, MY wit <br /> Stockton, California Date by <br /> Dear Ms. Meays: <br /> Pursuant to your request EzC, Inc. Is submitting this addendum to our workplan for <br /> the above mentioned subject site. Our original workplan submitted to your office Is <br /> dated December 23, 1992. The following additional work has been proposed for the <br /> subject site as detailed in our proposal dated February 9, 1993. <br /> • Advance boring 0-2 below 20 feet and collect samples at 25, 30, and 35 feet <br /> below the ground surface (bgs), or to the first encounter of groundwater, <br /> whichever Is deeper. The soil samples collected above the groundwater level <br /> will be held at our office for subsequent analysis. We will only analyze the <br /> water sample and soil Interface sample from B-2. <br /> • Advance a soil boring at sample point B-3 and collect samples at 5-foot <br /> intervals to the first encounter of groundwater. All soil samples except the <br /> Interface sample will be held for possible future analysis. The only laboratory <br /> analysis will be performed on the water sample and soil interface sample <br /> collected from B-3. <br /> • The soil sample collected from boring 8-2 will be analyzed for total petroleum <br /> hydrocarbons(TYH) as gasoline,including the benzene,toluene,ethyl benzene, <br /> and xylene (BTEX) constituents. <br /> • The soil sample collected from boring 8-3 will be analyzed for TPH as diesel, <br /> Including the BTEX constituents. <br /> • The groundwater grab samples collected from B-2 and B-3 will be analyzed for <br /> both TPHd and TPI-Ig and BTEX constituents. <br /> • All soil sample analyses will be performed on a normal 10-working day <br /> turnaround cycle. <br /> ?A?0 E�A.awn.e, --w2 eDO•S,stiyJuep. anti 9406'9•(4n91 747.414•FAx t4CM 745-u]29 <br />