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* 'AAI(OA <br />ew);ACALIFORNIA <br />A.. <br />STOPS <br />2224 MANTHEY RD. <br />STOCKTON, CA 952" <br />PHONE #: (209) "2-7621 <br />April 20, 2009 <br />1-107 <br />TM-Timr-r, =.,, WMIMM-1 <br />2MEMM <br />SAN JOAQWN COUNTY <br />ENVIrRONMENTAL <br />Fff--4�WMMW1 <br />During the monitoring test we found out that fl= were a small amount of water in 97octaw <br />sump but dw amount was not large enough to tirigger the alarm. i have investigated the problem <br />by using color dye to trace any leaks. I found out the dye was coming in from the ground level of <br />the sump when the silicone is not perfectly dry or when it is not perfectly sealed tight. To ensure <br />d" no water <br />cam get in, I sealed two layers of silicone which will keep the WSW out. <br />Ihe water that was withdrawn from the sump was taken to CLEAN HARBOR to dump as <br />ham,dous waste. I have included the manifest with this letter. Any questions please contact me <br />at 209462-7621. <br />