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OEL�ELH DEL TECH GEOTECHNICAL SUPPORT SERVICES, INC. • (209) 8474737 (OFFICE) • (209) 847-3700 (FA)) deltechl@pacbel.net (Email) SITE: FORWARD LANDFILL / MANTECA, CA. GROUNDWATER TREATMENT SYSTEMMONITOWNG LOG 2015 DOWNTIME LOG TOWER PUMPING OPERATIONAL SYSTEM TIME TIRE DATE STATUS NAME OFFLINE ONLINE ACTIONS / REASON FOR DOWNTIME ......................................... January 14,2015 ALL PUMPS RUNNING ALL PUMPS OPERATIONAL/ONIJNE RUNBNG January29,2015 ALL PUMPS RUNNING ALL PUMPS OPERATIONAL /ONIdNE RUNING PUMPS OPERATIONAL/ EW-3R OFF LINE / APPEARS TO HAVE • .. A POWER FAH.URE. RESET MAIN PANEL AND PUMP CAME BACK ON- Febrna 10, 2015 ON - LINE NOT ALL PUMPS RUNNING LINE - NO PROBLEMS. February26, 2015 ON - LINE ALL PUMPS RUNNING March 20 2015 ON - LINE ALL PUMPS RUNNING March 30 2015 OFFLINE POWER OFF-NO PUMPS RUNNING NO POWERTO ANY PUMPS ORTOWER NO PUMPS RUNNING. April 2015 OFFLINE POWER OFF-NO PUMPS RUNNING PUMPS OFF -LINE / RESET AND NOW RUNNING. April 22 2015 ON - LINE . . " S RUNNING- EXCEPT EW- TRIPPED RIPPED BREAKER / RESET May 12 2015 ON - LINE ALL PUMPS RUNNING - EXCEPT EW- EW-2 PUMP MOTOR CONTROL FAILED / NEEDS REPLACED May 26, 2015 ON - LINE ALL PUMPS RUNNING - EXCEPT EW- EW-2 PUMP MOTOR CONTROL FARM / PUMP ON ORDER May 26,2015 OFFLINE SYSTEM DOWN MAINTENANCE CREW BROKE MAIN EFFLUENT LINE June 16,2015 ON - LINE ALL PUMPS RUNNING - EXCEPT EW-2 MULTIPLE POWER FAILURES June 24, 2015 ON - LINE ALL PUMPS RUNNING - EXCEPT EW- EW-2 PUMP & MOTOR SCHEDULED FOR REPLACEMENT WEEK OF 7/01/15 JWy 8, 2015 ON - LINE ALL PUMPS RUNNING - EXCEPT EW-1 EW-1 PUMP FAILED - NO MEASURABLE FLOW. July 29, 2015 ON - LINE ALL PUMPS RUNNING - EXCEPT EW- EW-3 PUMP MOTOR HAS NOW FAILED - NEW PUMP ONO. NEW PUMP ASSEMBLY August 5, 2015 OFFLINE EW - 3 STILL DOWN WEEK August 12, 2015 ON - LINE ALL PUMPS RUNNING ,., NEW PUMFMOTOR INSTALLED:INEW-3R August 28, 2015 ON - LINE ALL PUMPS RUNNING September 1S, 2015 ++ ON - LINE ALL PUMPS RUNNING SqUember 27, 2015 ON - LINE ALL PUMPS RUNNING October 5, 2015 ON - LINE ALL PUMPS RUNNING October 29, 2015 ON - LINE ALL PUMPS RUNNING November 19, 2015 ON - LINE ALL PUMPS RUNNING November 30, 2015 ON - LINE ALL PUMPS RUNNING December 9, 2015 ON - LINE ALL PUMPS RUNNING December 22, 2015 ON - LINE ALL PUMPS RUNNING EW-2 TOTAL12ER WAS STUCK NOT TURNING CLEANED TOTALIZER AND IT IS TURNING AGAIN !! 3/30/15 - P.G.&E. POWER LOSS - RESET MAIN BEAKERS AND SYSTEM BACK ON UNE. 4/6/15 - MAIN POWER DOWN AGAIN - RESET MAIN POWER PANELS - BACK ON-LINE. 4/22115 - SYSTEM IS RUNNING - EXTRACTION WELL # 2 MAIN BREAKER TRIPPED. RESET BREAKER AND SEEMS FINE - BACK ON-LINE PUMPING. 6/16/15 - EXTRACTION WELL # 21S 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 M 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 !! 7/27/15 - EW - 3R HAS FAILED. THE PUMP UNIT TRIPS THE MOTOR CONTROL CONTINUOUSLY. AMPERAGEMEASURED ON THE MOTOR LEADS ARE DOUBLE THE RATED CURRENT FOR THIS MOTOR MOTOR HAS SHORTED OUT. NEW UNIT IS ON ORDER. • • •