ARCHIVED REPORTS_2010_15 - Laserfiche WebLink

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DEL-TECH GEOTECHNICAL SUPPORT SERVICES,INC. (209)847.8757(OFFICE)•(209)847-3700(FAX)•deltech l@pacbe0.mt(Email) SITE: FORWARD LANDFILL/MANTECA,CA. GROUNDWATER TREATMENT SYSTEM MONITORING LOG 2010 HOURLY DOWNTIME LOG TOWER PUMPING OPERATION SYSTEM TIME TIME DATE STATUS NAME OFFLINE ONLINE ACTIONS/REASON FOR DOWNTIME January 12,2010 ALL WELLS January 26,2010 ALL WELLS February 8,2010 ALL WELLS February 28,2010 ALL WELLS March 12,2010 ALL WELLS March 30,2010 ALL WELLS April 9,2010 _ ALL WELLS April 20,2610 0 EW-3R&EW-4 ???? MAIN POWER LOSS/RESET BREAKER/WORKING ENE NOW April 20,2010 ON ti ALL WELLS May 14,2010 ON LI ALL WELLS Ma 27,2010 ON LI ALL WELLS Juoe 8,1010 ON LIN ALL WELLS June 22,2010 ON LI ALL WELLS July 7,2016 OFF L EW-3R 999MAIN POWER LOSS/RESET BREAKER Jul 29,2010 OFF LI EW-3R ??? PUMP MOTOR HAS FAILED/PUMP RIG SCHEDULED August 13,2010 ON LIN EW-3R ??? REPLACED PUMP MOTOR/CLEANED PUMP/ON-LME NOW August 30,2010 ON LIN ALL WELLS Se[ember 1$,2610 0 - TOWER/EW-3R NEW PUMP MOTOR IN 3R/TOWER CLEANING Se[ember 30,2010 ALL WELLS&TOWER October 13,2011 ALL WELLS&TOWER October 26,2011 O TOWER REPAIRS FULLY CONJESTED WITH CALCIUM/NAW FLOW/MGH SUMP ALARMS November 9,2011 0 TOWER DOWN TOWER NEEM MAJOR REPAIRS/CLEANING/NEW PACKING November 24,2011 0 TOWER EFFLUENT LINE DOWN EFFLEUNT LME NOW NEEDS TO HE REPLACED-600 FT.OF r PVC December 10,2011 TOWER UP/WELLS 1,2,4 UP EX.3R IS DOWN/MOTOR FAILURE AGAIN December 27,2011 TOWER UP/WELLS 1,2,4 UP EX.3R IS DOWN/MOTOR FAILURE AGAIN PRIOR TO OCT.26TH MULTIPLE HIGH SUMP ALARMS WERE BEING CLEARED.ALSO THE AIR PRESSURE FOR THE TOWER HAS GONE UP TO 40"OF WATER PRESSURE. OPENED INSPECTION PLATE ON TOWER AND DISCOVERED THAT THE UNIT WAS FULLY CALCIFIED OVER.MINIMAL AIR FLOW WAS FLOW UP AND THROUGH THE TOWER. OCT.28TH-RETURNED TO SITE AND CYCLED 100 GALLONS OF HYDROCLORIC ACID THROUGH TOWER FOR 72 HOURS.UPON INSPECTING THE SUMP AND LOWER UNIT THE TOWER WAS CLEAN AND FREE OF ANY CALCIUM BUILDUP.STARTED UP SYSTEM AGAIN AND STILL WE HAD HIGH PRESSURE. REMOVED THE UPPER TOWER INSPECTION COVER TO DISCOVER THAT THE TOWER WAS CLOGGED UP FROM THE BOTTOM ALL THE WAY UP TO THE TOP. THE TOWER NEEDED TO BE FULLY DISASSEMBLED AND REMOVED FOR SERIOUS CLEANING.ALL NEW PACKING MATERIAL WAS ORDERED AND A TRETROFIT TO RAISE THE BASE OF THE TOWER FOUR FEET WAS ENGINEERED.THE GRAVITY FLOW FROM THE TOWER TO THE EFFLUENT POND WAS NOT ENOUGH FOR PROPER FLOW. SCHEDULED CRANE AND PARTS FOR TOWER TEARDOWN AND REBUILDING.THIS TURNED INTO A MAJOR UNDERTAKING DUE TO THE TONS OF CALCIUM INSIDE OF TOWER. BETWEEN EXTREME WEATHER CONDITIONS AND A VERY DIFFICULT TASK.TOWER REINSALLED 1129/10.ALL SYSTEMS RUNNING GOOD FOR A SHORT TIME.MORE HIGH SUMP ALARMS.DISCOVERED THAT NOW THAT THE TOWER IS OPERATING A PEAK PERFORMANCE THE 8 INCH EFFLUENT LINE WAS ALSO HEAVILY CLOGGED WITH CALCIUM.THIS NEW UNKNOWN CONDITION NOW REQUIRES THE REMOVAL AND REPLACEMENT OF APPROX.600 FEET OF PVC EFFLUENT LINE. DEC.02 2010-THE TOWER&NEW EFFLUENT LINE WERE PUT BACK ON-LINE.THE FULLYSYSTEM IS RUNNING AT PEAK PERFORMANCE. EX.3R IS STILL DOWN DUE TO A FAILED PUMP MOTOR.DUE TO THE VERY HEAVY RAINFALL IT HAS BEEN IMPPOSIBLE TO GET A PUMP RIG OUT TO CHANGE THE PUMP MOTO WAITING FOR THE WEATHER TO CLEAR AND NOT GET STUCK.ALSO THE EFFLUENT LINE FROM 3R IS SCHEDULED TO BE UPGRADED TO A 6"LINE AS SOON AS THE SITE CONDITIONS UPGRADE.THIS WILL GREATLY REDUCE THE BACKPRESSURE THAT 3R HAS BEEN EXPERIENCING IN THE PAST.WE ESTIMATE IN THE SPRING OF 2011 FOR THIS.