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 Issue dateTitleTopic
ML18065B0548 November 1996NPDES Noncompliance Notification:On 961023,release of Approx One Gallon of Diesel Fuel That Was Mixed W/Groundwater from Construction Dewatering Activity Was Reported to Pollution Emergency Alert Sys.Matl Was Contained & Cleaned UpTime of Discovery
ML18065A74223 May 1996NPDES Noncompliance Notification:On 960228,15,000 Gallons of Demineralizer Regeneration Waste Solution Spilled Into Plant Mixing Basin
ML18064A7638 May 1995NPDES Noncompliance Notification:During Nov 1994 - Apr 1995, No NPDES Violations Identified.Three Repts of Oil,Salt or Polluting Matl Loss Made on 941102,11 & 29
ML18058B84920 May 1993NPDES Noncompliance Notification for Nov 1992-Apr 1993.On 930105,loss of Power to Sewage Lift Pumps Occurred,Resulting in Loss of 50 Gallons of Clear Liquid Sewage to Storm Drain. No Presence of Solids or Sewage Odor Noted
ML18058B23520 November 1992NPDES Noncompliance Notification:On 920517 & 0713,plant Exceeded Max Chlorine Effluent Concentration to Outfall 001.Causes Unknown.Request Submitted to Reroute Backwater Flush to Storm Drain & Grab Samples ObtainedGrab sample
Zebra Mussel
ML18058A45818 May 1992NPDES Noncompliance Notification:On 911210 & 920408,plant Exceeded Max Oil & Grease Concentration to Plant Mixing Basin.On 920403,inadvertent Release of 160 Gallons of CCW Occurred.Oil Absorbent Pillows Placed in Turbine Bldg
ML18057B39026 November 1991NPDES Noncompliance Notification:On 910710,loss of Approx 200 Gallons of Liquid Sewage from Plant Septic Sys Occurred. on 910820,hydrazine Lost from Main Outfall.Revised NPDES Permit Issued in Aug 1991Time of Discovery
Zebra Mussel
ML18057A61130 November 1990NPDES Noncompliance Notification:From 900501-1031,six Sewage Overflows to Storm Drain Sys Occurred.Overflows Attributed to Increased Number of Contractors on Site,Poor Clean Out Fixture Design & Blockage of Sewage Line
ML18054B16730 November 1989Supplemental NPDES Noncompliance Notification:On 890107,18 & 20,daily Max Effluent Limitations Exceeded.Previous Heat Addition Values Incorrect.Actual Heat Loading Stated
ML18054A78631 May 1989NPDES Noncompliance Notification:On 890107,18 & 20,plant Thermal Discharge Exceeded Daily Max Heat Discharge Effluent Limitation.Caused by Failure to Adequately Monitor & Control Blowdown from Closed Cycle Condenser Cooling Sys
ML20195J49020 June 1988NPDES Noncompliance Notification:On 880616,TRC at Discharge Rose to 0.3 Mg/L.Caused by Higher than Normal Amount of Sodium Hypochlorite Inadvertently Added During Chlorination of Cooling Tower A.Util Will Evaluate Causes
ML20195J48423 May 1988NPDES Noncompliance Notification:On 880516,routine Sample of Turbine Sump Oil Separator Tank T-41 Analyzed & Reported to Be 24 Mg/L.Caused Undetermined.Quarterly Routine Cleaning of Oil Separator M-18 Occurred Between Sample & Analysis Time
ML18155A2721 December 1987NPDES Noncompliance Notification:On 870817,sample of Turbine Sump Oil Separator Tank T-41 Reported Oil & Grease Level Exceeding Daily Max Limit.Caused by Spill of Electrol Hydraulic Control (EHC) Fluid from Ruptured EHC Line
ML20154Q52828 August 1987NPDES Noncompliance Notification:On 870818,50 Gallons of Stauffer EHC Fluid Released in Lake Michigan.Caused by High Pressure Line Failure Resulting in Loss.Majority of Fluid Captured W/Oil Sorbent Matl.No Apparent Damage NotedTime of Discovery
ML20214W86114 August 1986NPDES Noncompliance Notification:On 860812,overflow from Plant Neutralizer Tank Discovered.Caused by Extended Manual Rinse.No Environ Damage to Area Under Tank.No Cleanup Planned.Operators Instructed to Prevent RecurrenceTime of Discovery
ML20214W87710 July 1986NPDES Noncompliance Notification:On 860630,neutralizer Tank Total Suspended Solids (TSS) Concentration Found Above Limit.Caused by Tank Release on 860603 W/Abnormally High TSS Content
ML20214W8979 June 1986NPDES Noncompliance Notification:On 860514,19 & 31,oil & Grease Concentration for Tank T-41,turbine Sump Oil Separator,Found Above Limit.Caused by Temporary Bypass & Failure of Separator.Separator Cleaned
ML20214W92128 May 1986NPDES Noncompliance Notification:On 860519,daily Max Limit for Oil & Grease in Turbine Sump Oil Separator Exceeded. Caused by Failure of Separator to Adequately Remove Influent Oil to Sys.Separator Cleaned
ML20214W92621 May 1986NPDES Noncompliance Notification:On 860513,spent Regenerants Overflowed from Neutralizer Tank & on 860515,demineralizer Rinse Water Overflowed from Same Tank.Caused by Leaking Valve & Valve Being Inadvertently Left Open,RespectivelyTime of Discovery
ML20214W93521 May 1986NPDES Noncompliance Notification:On 860514,daily Max Limit for Oil & Grease in Turbine Sump Oil Separator Exceeded. Caused by Temporary Bypass of Separator for Scheduled Cleaning.Cleaning Will Be Better Coordinated in Future
ML20210V48222 April 1986NPDES Noncompliance Notification:On 860414,oily Wastewater Treatment Sys Bypassed.Condensate Pump P-2A Developed Packing Leak & Flooded Pit Floor.Condensate Pump P-2A Taken Out of Svc for RepairPacking leak
ML20210V49915 April 1986Corrected NPDES Noncompliance Notification:On 860303,daily Max Oil & Grease Limit Exceeded for Turbine Sump Oil Separator Discharge.Addl Readings Made to Assess Sys Performance & Several Readings Also Exceeded
ML20210V53510 April 1986NPDES Noncompliance Notification:On 860331,monthly Average Limit 15 Mg/L Oil/Grease Exceeded.Turbine Sump Pit Filled W/Oil from Leaking Seal on Turbine 4 Bearing Oil Lift Pump. Leak on Pump Secured & Turbine Sump Pumped to Oil Hold Tank
ML20210V5402 April 1986NPDES Noncompliance Notification:On 860323,daily Max Limit 20 Mg/L Oil & Grease Exceeded.Caused by Failure of Oil Removal Sys to Remove Oil from Process Stream.Sys Engineer in Process of Evaluation
ML20210V55626 March 1986NPDES Noncompliance Notification:On 860324,oily Waste Treatment Sys Bypassed.Normal Pathway from Turbine Sump to M-18 Emergency Bypassed Because Turbine Sump Pumps P-45A & B Inoperable.Turbine Sump Pumps P-45A & B Being Repaired
ML20210V56524 March 1986NPDES Noncompliance Notification:On 860314,fuel Oil Spill of 100 Gallons Number 2 Fuel Oil.Caused by Tank T-926 Overfilled by Vendor.Contaminated Soil Removed & Disposed of in Orchard Hills Landfill & Replaced W/Fresh SandTime of Discovery
ML20210V52711 March 1986NPDES Noncompliance Notification:On 860303-10,daily Max Limit 20 Mg/L Exceeded.Turbine Sump Pit Filled W/Oil from Leaking Seal on Turbine 4 Bearing Oil Lift Pump.Leak on Pump Secured.Accumulated Oil Pumped Into Oil Hold Tank
ML20211A94511 March 1986NPDES Noncompliance Notification:On 860303,daily Max Limit 20 Mg/L Exceeded.Turbine Sump Pit Filled W/Oil from Leaking Seal on Turbine 4 Bearing Oil Lift Pump.Leak on Pump Secured.Turbine Sump Pumped to Oil Hold Tank
ML20211A97012 February 1986NPDES Noncompliance Notification:On 860207,PH Daily Max Limitation of 9.0 for Mixing Basin Discharge.Neutralizer Tank Drain Valve Left Open Following Neutralizer Tank Release.Drain Valve Closed.Procedures Reevaluated
ML20211B00014 January 1986NPDES Noncompliance Notification:On 851201,pH Not Monitored. Technician Unaware of Required Sampling.Technicians Reminded of Sampling Requirement When Sample Pump Out of SvcGrab sample
ML20138K3592 December 1985NPDES Noncompliance Notifications for May-Oct 1985Time of Discovery
Grab sample
ML20126M7106 May 1985NPDES Noncompliance Notification:On 850415,monitoring Point Outfall 00G (Tank T-41) Weekly Grab Sample for Oil & Grease Exceeded Daily Max.Caused by Abnormal High Flow of Water Through Turbine SumpGrab sample
ML20126M71419 March 1985NPDES Noncompliance Notification:On 850228,monthly Average Oil & Grease Exceeded Limit of 15 Mg/L.Caused by Apparent Malfunction of New Oil/Water Separator.Separator Cleaned & Oil Skimming Weir Readjusted
ML20126M7196 February 1985NPDES Noncompliance Notification:On 850131,monthly Average Oil & Grease Concentration Measured 42 Mg/L,Exceeding Limit of 15 Mg/L.Caused by Bypass of New API Oil/Water Separator Due to Faulty Waste Oil Pump.New Pump Installed
ML20126M7284 February 1985NPDES Noncompliance Notification:On 850121 & 28,routine Weekly Oil & Gas Samples Measured 50.2 Mg/L & 60 Mg/L, Respectively,Exceeding Limit.Caused by Bypass of New API Oil/Water Separator Due to Faulty Waste PumpGrab sample
ML20126M75021 January 1985NPDES Noncompliance Notification:On 850110 & 14,routine Weekly Oil & Grease Samples Measured 72.2 Mg/L & 56.1 Mg/L, Respectively,Exceeding Limit.Caused by Removal of New API Oil/Water Separator from Svc for Maint.Returned to Svc
ML20126M7693 December 1984NPDES Noncompliance Notification:On 841120 & 21,turbine Bldg Sump Flooded & Oily Waste Treatment Sys Temporarily Bypassed.Caused by Main Boiler Feed Pump Leakage.Leakage Cut to Flow Level Turbine Sump Pumps Could Handle.W/Addl ReptsTime of Discovery
ML20067B83113 October 1982NPDES Noncompliance Notification:On 821004,max Measured TRC Value in Mixing Basin Was 0.75 Ppm During Chlorination of Cooling Tower A.Caused by Excessive Chlorine Feed for Plant Conditions.Chlorination Terminated
ML20067B83612 October 1982NPDES Noncompliance Notification:On 820927,routine Weekly Sample for Oil & Grease Collected Measured 23.0 mg/1. Caused by Malfunction of Emulsion Breaker & Oil Removal Sys. Emulsion Breaker Oil Filters Changed
ML20067B8481 October 1982NPDES Noncompliance Notification:On 820920,routine Weekly Oil & Grease Sample Collected Measured 123 mg/1.Caused by Malfunction of Emulsion Breaker Sys.Emulsion Breaker Oil Filters Changed on 820921
ML20067B85616 August 1982NPDES Noncompliance Notification:On 820731,daily Max Limit of 20 mg/1 for Oil & Grease Was Exceeded 6 Days,Resulting in Monthly Average Limit of 15 mg/1 Being Exceeded.Cause Unknown.Oil Absorbent Pillows Changed
ML20067B8756 August 1982NPDES Noncompliance Notification:On 820722 & 23,routine Oil & Grease Samples Measured 26.5 mg/1 & 31.8 mg/1, Respectively.Cause Unknown.Oil Absorbent Pillows Changed & Floating Oil Removal Devices Emptied
ML20067B88330 July 1982NPDES Noncompliance Notification:On 820720,routine Oil & Grease Sample Indicated 23.5 mg/1 Concentration.Cause Unknown.Oil Absorbent Pillows in Tank T-41 Changed
ML20067B88722 July 1982NPDES Noncompliance Notification:On 820712,13 & 14,routine Oil & Grease Samples Indicated 21.7 mg/1,25.5 mg/1 & 112.5 mg/1 Respectively.Caused by Clogged Oil Removal Filters in Emulsion Breaking Sys.Oil Filters Changed
ML20067B8937 July 1982NPDES Noncompliance Notification:On 820628,29 & 30,routine Oil & Grease Samples Indicated 37.7 mg/1,23.1 mg/1 & 20.8 mg/1,respectively.Caused by Malfunction of Oil Treatment Skid & Associated Equipment.Oil Removal Filters Changed
ML19343C51716 March 1981NPDES Noncompliance Notification:On 810228,daily Average Oil & Grease Concentration Exceeded Daily Average & Max Limitations.Cause Identified & Corrective Actions Taken as Reported in Util 810213 & 0303 Repts
ML20126E75613 February 1981NPDES Noncompliance Notification:On 810203,oil & Grease Level of Outfall 800218 Found in Excess of Daily Max Effluent Limitation.Caused by Problems W/Emulsion Breaker. Filter Replacements & Waste Oil Sys Lineup Will Be Checked
ML20003C08413 February 1981NPDES Noncompliance Notification:On 810131,total Suspended Solids Exceeded Tech Specs Limits.Caused by Undetermined Isolated Occurrence.Neutralizer Tank Operating Conditions Will Be Continuously Scrutinized
ML20002D93520 January 1981NPDES Noncompliance Notification:On 801229,effluent Sample Exceeded Tech Spec Limit.Caused by Rupture of Emulsion Breaker Filter Element.Filter Element Replaced on 810107. Oil Removal Sys Will Be Cleaned & Personnel Reinstructed
ML18045A6309 September 1980NPDES Noncompliance Notification:On 800818,weekly Grab Sample Indicated 27.3 mg/1 Oil & Grease.Caused by Oil Separator Sys Ineffectively Removing Component Oil in Floor Drains.Oil Absorbent Pads Will Be Placed Throughout PlantGrab sample
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