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Chevron U.S.A. <br /> Page 2 <br /> Each of the wells had standing water surrounding the <br /> casing within the well head. Two of the pvc pipes (MW-2, MW- <br /> 7) were slightly damaged. After draining the water, the <br /> inside of the well casing was checked for stains. wells Mw-2 <br /> and MW-6 had residual black liquid stains down the insides of <br /> the well casings. <br /> The existing well heads were jackhammered out along with <br /> a portion of surrounding asphalt. A properly sealed new well <br /> head was set in place. In addition, sealing well caps were <br /> installed In all of the wells. The new well head and the <br /> replacement concrete were slightly raised to promote positive <br /> drainage. Also the casings of wells MW-2 and MW--3 were <br /> repaired by placing a pvc coupler arounc the well. Plates 2, <br /> 3, and 4 pictorially represent a portion of this work. <br /> We recommend that a copy of this report be forwarded as <br /> - follows: <br /> - Ms. Darlene Ruess <br /> San ,;oaquin County Health <br /> 1601 E. Hazelton Avenue <br /> Stockton, Ca. 95201 <br /> Should you have any questions, please do not hesitate to <br /> contact our office at (209) 222-71392. <br /> ., Respectfully submitted, <br /> DAMES & MOORE <br /> 7-1 <br /> Amer Hussain <br /> Staff: Engineer <br /> i <br /> Michael Erwin, RCE <br /> Senior nectechnical Engineer <br /> AH/MRE/vs <br /> 16000206.009 <br /> 3 .c herewith <br /> mMMMM ME <br />