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TLS 1 S � � F f� r7c l� N P _ 02 <br /> AUGUST 220 1989 <br /> SAN JOAQUIN COUNTY <br /> LOCAL HEALTH DISTRICT <br /> 1601 EAST HAZELTON AVENUE <br /> STOCKTON, CA 95205 <br /> RE : CLEANING PROCEDURE OF UNDERGROUND STORAGE TANKS <br /> ATTN: HARLIN KNOLL <br /> AS ' REQUESTED BY SAN JOAQUIN COUNTY WE ARE SUBMITTING THE <br /> PROCEDURES WE WILL IMPLEMENT WHEN THE CLEANING OF A UNDERGROUND <br /> STORAGE TANK IS REQUIRED. <br /> CLEANING OF FUEL TANKS <br /> 1 . HAVE RESIDUAL PRODUCT PUMPED OUT BY A LICENSED HAZARDOUS <br /> WASTE TRANSPORTER AND MANIFESTED. <br /> 2 . RINSE TANK 2 MINUTES PER 1 ,000 GALLONS WITH HOTSY PRESSURE <br /> WASHER MODEL #940 ( 4GPM @ 29000 PSI ) USING HOTSY RIPPER II <br /> CLEANING CHEMICAL WITH SPECIAL FAN TIP MANUFACTURED FOR <br /> TANK RINSING. <br /> 3. HAVE REMAINING CLEANING CHEMICAL AND WATER PUMPED OUT WITH <br /> A VACUUM TRUCK LICENSED FOR TRANSPORTING HAZARDOUS WASTE <br /> AND MANIFESTED. <br /> 4 . REPEAT STEP 2. <br /> 5. REPEAT STEP 3. <br /> 6. REPEAT STEP 2. <br /> 7 . --REPEAT STEP 3. <br /> S. TO DETERMINE IF ANY LIQUID IS LEFT IN THE TANK, STICK THE <br /> TANK AT THE LOW END, MIDDLE AND HIGH END. IF RINSATE IS <br /> STILL EVIDENT REPEAT STEP 3 UNTIL ALL RINSATE IS GONE. <br /> SPECIAL MET OD WASTE OIL TANKS <br /> i . RESIDUAL PRODUCT TO 8E PU PED UT BY ICENSED VACUUM <br /> TRUCK TO TRANSP T HA ARD US STEL D MANIFESTED. <br /> 2. THE CLEANING AN ISP SA OF W E OIL <br /> TANK WILL BE <br /> PERFORMED BY H S IPP NG ANY OF SAN FRANCISCO <br /> TSD FACILITY P <br /> IT <br /> 38- O - 8 <br /> EPA FACILITY PERMIT CAD0047761168 <br /> i <br />