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DEL-TECH GEOTECHNICAL SUPPORT SERVICES,INC. (209)847-8757(OFFICE)-(209)847-3700(FAX)•dellechl ra)pacbell.net(Email) SITE: FORWARD LANDFILL/MANTECA,CA. GROUNDWATER TREATMENT SYSTEM MONITORING LOG 1015 7 DOWNTIME LOG TOWER PUMPING OPERATIONAL SYSTEM 4or DATE STATUS NAME ACTIONS/REASON FOR DOWNTIME Janus 14,2015 ALL PUMPS RUNNING ALL PUMPS OPERATIONAL/ONLINE RUNING January29,2015 ALL PUMPS RUNNING ALL PUMPS OPERATIONAL/ONLINE RUMNG PS OPERATIONAL;EW-3R OFF LINE APPEARS TO FIA VE BEENA FAILURE.RESET MAIN PANEL AND PUMP CAME BACK ON-LINE- Februa 10,2015 O\-I.I\I[ NOT ALL PUMPS RUNNING NO PROBLEMS. February26,2015 ON-LINE ALL PUMPS RUNNING ALL PUMPS OPERATIONAL.ONLINE RUNING March 20,2015 ON-LINE ALL PUMPS RUNNING March 30,2015 OFFLINE POWER OFF-NO PUMPS RUNNING NOPOWERTOANYPLNM OR TOWERNOPUMPS RUNNING. April 8,2015 OFFLIN POWER OFF-NO PUMPS RUNNING PUMPSOFF-LINE RESETANDNOW RUNNING. April 22,2015 ON-LINE - EW-2 TRIPPED BREAKER:RESET Me 12,2015 L PUMPS RUNNING-.EXCEPT EW-2 PUMP MOTOR CONTROL FAILED/NEEDS REPLACED a M8 26,2015 EW-2 PUMP MOTOR CONTROL,FAILED,PUMP ON ORDER M8 26,2015 MAINTENANCE CREW BROKE MAIN EFFLUENT LIN' June 16,2015 ON-LINE LL PUMPS RUNNING MULTIPLE POWER FAILURES June 24,2015 PUMPS RUNNING EW-2 POW&MOTOR SCBEDULED FOR REPLACEMENT WEEK OF 7,01/15 Jul 8,2015 N-LINE L PUMPS RUNNING-EXCEPTT EW-I Puam FAaED-NO MFAsuRAIFE Flow. July 29,2015r011.,'- L PUMPS RUNNING-EXCEPT EW-3 EW-3 PUMP MOTOR HAS NOW FAILED-NEW PUMP ON ORDER. August 5,2015EW-3 STILL DOWN NEW PUMP ASSEMBLY IFAS COME IN-INSTALLING LATER THIS WEEK August 12,2015 ALL PUMPS RUNNING August 28,2015 ALL PUMPS RUNNING Se tember 18,2015 ALL PUMPS RUNNING Se tember 27,2015 ALL PUMPS RUNNING October 5,2015 ON-LINE: ALL PUMPS RUNNING October 29,2015 .-ON-LINES,; ALL PUMPS RUNNING 3/30/15-P.G.&E.POWER LOSS-RESET MAIN BEAKERS AND SYSTEM BACK ON-LINE. 4/8/15- MAIN POWER DOWN AGAIN-RESET MAIN POWER PANELS-BACK ON-LINE. 4/22/15- SYSTEM IS RUNNING - EXTRACTION WELL#2 MAIN BREAKER TRIPPED. RESET BREAKER AND SEEMS FINE-BACKON-LINE PUMPING. 6/16/15- EXTRACTION WELL 1112 IS DOWN AND WAITING FOR THE PUMP&MOTOR ASSEMBLY. DUE TO THE DROUGHT THESE PARTS ARE ON BACK ORDER FROM THE GRUNDFOS PLANT IN FRESNO,CA. 7/6/15 - RECEIVED THE NEW PUMP&MOTOR FROM GRUNDFOS PUMPS-SPECIAL ORDER!!! 7/17/15- STARTED WELL REPAIRS ON EW-2. COMPLETED REPAIRS ON EW-2 ON 7/18/15. 7/21/15-ADDITIONAL PIPING REPAIRS TO THE EW-2 PIPING. 7/21/15- REMOVAL OF THE ABANDONED PUMP SYSTEM IN EW-3. CAPPED OFF TOP OF WELL FOR FUTURE GROUTING&ABANDONMENT. 7/21/15-ADDITIONAL PIPING REPAIRS NEEDED TO THE EW-2 PIPING DUE TO INCREASED PRESSURE WITH NEW PUMP ASSEMBLY. 7/21/15- REMOVAL OF EW-1 PUMPING SYSTEM. THIS WELL WAS PUMPING AT 5 GPM AT 5 TO 10 PSI. DOWN HOLE 3"PIPING WAS VERY CORRODED AND REQUIRED NEW PIPE REPLACEMENT. ALSO THE PUMP UNIT WAS FULL ENCASED WITH A BLACK CALCIUM/BACTERIA COATING. THIS WAS PREVENTING ANY WATER FROM ENTRING THE PUMP UNIT. 7/25/15- FULLY DISASSEBLED EW-1 PUMP UNIT-STEAM CLEANED THE WHOLE ASSEMBLY AND REASSEMBLED. INSTALLED THE CLEANED PUMP UNIT WITH NEW SECTIONS OF 3"GALVANIZED STEEL PIPING. TESTED PUMP AND IT PERFORMED EXCELLENTLY AT 100 GPM AT 60 PSI. EW-1 BACK ON-LINE I! 7/27/15- EW-3R HAS FAILED. THE PUMP UNIT TRIPS THE MOTOR CONTROL CONTINUOUSLY, AMPERAGE MEASURED ON THE MOTOR LEADS ARE DOUBLE THE RATED CURRENT FOR THIS MOTOR. MOTOR HAS SHORTED OUT. NEW UNIT IS ON ORDER.