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DEL—TECH GEOTECHNICAL SUPPORT SERVICES,INC. (209)847-8757(OFFICE)-(209)847-3700(FAX)"deltechl@pacbell.net(Email) SITE: FORWARD LANDFILL/MANTECA,CA. GROUNDWATER TREATMENT SYSTEM MONITORING LOG 2009 HOURLYDOWNTIME LOG TOWER PUMPING OPERATION SYSTEM TIME TIME DATE STATUS NAME OFFLINE ONLINE ACTIONS/REASON FOR DOWNTIME April 28,2009 EX-1 7:25 TAKEN OFF LINE FOR REDEVELOPMENT TASKS April 28,2009 EX-2 7:25 TAKEN OFF LINE FOR REDEVELOPMENT TASKS April 30,2009 EX-1 10:20 BROUGHT BACK ON LINE AFTER REDEVELOPMENT A FII 30,2009 EX-2 10:20 BROUGHT BACK ON LINE AFTER REDEVELOPMENT Z" 7777�77777777 May 15,2009 EX-1 6:03 TAKEN OFF LINE FOR EX.3&EX-4 HOOKUP May 15,2009 EX-2 6:03 TAKEN OFF LINE FOR EX-3&EX-4 HOOKUP May 15,2009 EX-1 12:50 ON LINE AFTER MAKING NEW WELLS HOOKUP May 15,20 EX-2 1 12:50 ON LINE AFTER MAKING NEW WELLS HOOKUP May 15,2009 EX-3 N/A 12:50 NEW EXTRACTION WELL ON LINE May 15,2009 EX-4 N/A 12:50 NEW EXTRACTION WELL ON LINE Ma 15,2009 EX-3 13:25 WELL GOES DRY/VERY POOR RECHARGE May 25,2009 EX-1 13:00 SYSTEM AUTODIALED OFF LINE May 25,2009 EX-2 13:00 SYSTEM AUTODLALED OFF LINE May 25,2009 EX-4 13:00 SYSTEM AUTODIALED OFF LINE May 26,2009 EX-1 7:30 APPARENT P.G.E POWER FAILURE/RESET SYSTEM Me 26,2009 EX-2 7:30 APPARENT P.G.E.POWER FAILURE/RESET SYSTEM Me 26,2009 EX-4 7:30 APPARENT P.G.E.POWER FAILURE/RESET SYSTEM NNE ALL WELLS NODOWN TIME JULY ALL WELLS NO DOWN TIME AU*USt 5,2009 EX-1 9:30 14:30 SYSTEM DOWNFORTOWER FLOW METER REPLACEMENT August$,2009 EX-2 9:30 14:30 SYSTEM DOWN FOR TOWER FLOW METER REPLACEMENT August 5,2009 EX-3 9:30 14:30 SYSTEM DOWN FOR TOWER FLOW METER REPLACEMENT August 5,2009 EX-4 9:30 14:30 SYSTEM DOWN FOR TOWER FLOW METER REPLACEMENT UNKNOWN TIME EX-2 77 77 PUMPING SYSTEM TAKEN OFF-LINE FOR DRAWDOWN TESTS ,.+ t� NOTES: ON APRIL 28TH BOTH OF THE ORIGINAL EXTRACTION WELLS WERE TAKEN OFF LINE FOR REDEVELOPMENT TASKS. ACTUALLY EX-1 HAS BEEN OFF LI SINCE DEL-TECH HAS STARTED THE PROJECT. EACH WELL WAS THROUGHLY CLEANED VIA DOWNHOLE PRESSURE WASHING AND SCRUBBING WITH A DRILLING RIG. THEN NEW 3"EFFLUENT GALVANZIED PIPING WAS INSTALLED WITH THE ORIGINAL PUMPS. EACH WELL WAS HEAVILY CONJESTE WITH SEDIMENT AND THICK BACTERIA ALGEA. BOTH UNITS W ER PUT BACK ON LINE AND ARE PUMPING EFFICIENTLY. ON MAY 15TH BOTH THE NEW EXRACTION W ELLS EX-3&EX-4 WERE BROUGHT ON LINE. THE W ELL EX-3 HAS A VERY POOR RECHARGE. TO AVOID BURNING UP THE NEW PUMPING SYSTEM-THE WELL HAS BEEN TURNED OFF LINE UNITL OTHER OPTIONS ARE EXPLORED. ON MAY 25TH-THE SYSTEM AUTODIALED OFF LINE. NO APPARENT REASONS W ERE OBSERVED FOR THE ALARM. R APPEARS THERE WAS A P.G.E. POWER FAILURE.