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 Issue dateTitleTopic
ML20236F34529 June 1998NPDES Noncompliance Notification:On 980615,sample Was Taken & Result Reported That Fecal Coliform Result Was 900 MPN/100 Ml.Result Exceeded Daily Max Limitations.Effluent Was Sampled Again on 980622 & Results Are Expected on 980701
ML20112K01618 June 1996NPDES Noncompliance Notification:On 960520,BOD5 Results of Sample Taken from Sewage Treatment Plant Effluent Exceeded Daily Max Limitation.Cause of Event Investigated & Unknown. Plant Operations During Period Not Changed
ML20078F54830 January 1995NPDES Noncompliance Rept Notification:On 950111,approx 2,500 Gallons of Suspected Low Concentration Propylene Glycol Solution Discharged to Site Outfall 002
ML20072S37525 July 1994NPDES Noncompliance Notification:On 940720,plant Intake Embayment Instrumentation Probe Found to Be Not Working. Caused by Saltwater Leakage & Subsequent Damage to Measuring Probe Internals.Equipment Replaced on 940722
ML20072S34412 July 1994NPDES Noncompliance Notification:On 940706,salinity Meter Found Out of Svc During Surveillance of Effluent Monitoring for Intake Embayment.Caused by Water Leak.Current Monitoring Equipment Being Replaced
ML20072S3607 June 1994NPDES Noncompliance Notification:On 940601,plant Intake Embayment Instrumentation Oxygen Probe & Data Recorder Found Not to Be Working.Caused by Corroded Internal Connectors & Replacement Tape Cassette Failure,Respectively
ML20064G4313 March 1994NPDES Noncompliance Notification:On 940225,grease & Oil Analysis at 08:00 Was 39.1 Mg/L.Caused by Pavement Runoff Due to Intense Rainfall.Resampling Results Were 0.3 Mg/L
ML20063B8237 January 1994NPDES Noncompliance Notification:On 940104,plant Intake Embayment Dissolved Oxygen Instrumentation Found Damaged. Caused by Failed Oxygen Probe.Probe Repaired
ML20058F2412 December 1993NPDES Noncompliance Notification:On 931021,trailer That Houses Continuous Monitoring Equipment Removed,Resulting in Failure to Perform Continuous Monitoring of Intake Water. Continuous Monitoring Equipment Returned to Svc on 931117
ML20101S93014 July 1992NPDES Noncompliance Notification:On 920608,sample Analysis for Fecal Coliform Indicated Concentration of 900 MPN/100 Mi Greater than Max NPDES Limit of 400 MPN/100 Mi.Cause Not Determined.Concentration of Chlorine Increased
ML20091L03023 December 1991NPDES Noncompliance Notification:On 911216,sample Analysis of Fecal Coliform Indicated Concentration Greater than 1600 mpn/100 Ml Sample,Exceeding Limit.Caused by Sodium Hypochlorite Pump Problems.Chlorine Concentration Increased
ML20091L03413 December 1991NPDES Noncompliance Notification:On 911209,fecal Coliform Analysis Indicated Concentration Greater than 1600 mpn/100 Ml,Exceeding Limit.Caused by Improper Residual Chlorine Analysis.Test Kit Comparator Replaced
ML20091L05130 October 1991NPDES Noncompliance Notification:On 911022,during Electrical Outage No Residual Chlorine Could Be Identified in Routine Weekly Sample.Fecal Coliform Analysis Yielded Concentration Greater That Daily Max Limit.Faulty Breaker Opened Manually
ML20091L06110 January 1990NPDES Noncompliance Notification:On 891218,auxiliary Boiler Blew Down Releasing Approx 6,000 Gallons Auxiliary Boiler Water Into Chesapeake Bay.Monthly Average of 30 Mg/Liter Was Exceeded
ML20091L08519 April 1989NPDES Noncompliance Notification:On 890412,electrical Control Relay Did Not Energize Which Controls Operation of Wet Well Pumps Via Air Compressor & Pressure Bubbler Sys. Engineering Dept Designing Back Up Control Sys
ML20247G42516 March 1989NPDES Noncompliance Notification:On 890223,large Number of Fish Impinged Affecting Two Traveling Screens & Requiring Shutdown of Circulating Water Pumps.No Fish Kills Observed. Caused by Winds Blowing Toward Intake Area
ML20091L07216 March 1989NPDES Noncompliance Notification:On 890313,during Cleanup of Overflowing Floor Drains Due to Main Drain Header Being Clogged,Cleaners Dumped Buckets of Waste Water Outside Storm Drain.Caused by Lack of Awareness of NPDES Requirements
ML20091L1028 March 1988NPDES Noncompliance Notification:On 880307,temp Increase Across Condensers Was Experienced for Outfall 001.Caused by Mechanical Failure Causing Shut Down of Circulating Water Pump.Incident Regarded as Uncontrollable.No Action Taken
ML20091L11121 October 1987NPDES Noncompliance Notification:On 871011,increase in Temp to 12.1 F Was Reached on Condensers.On 871012,increase in Temp to 12.3 Was Reached on Condensers.Caused by Reduced Flow of Cooling Water Through Condensers
ML20129E68922 April 1985Nonroutine Radiological Environ Operating Rept.During Mar 1985,oyster Samples Showed Presence of Ag-110m.Caused by Natural Tendency of Oysters to Concentrate Environ Silver
ML20107F96328 September 1984NPDES Noncompliance Notification:On 840828,reactor & Turbine Manually Tripped Due to Max Influx of Fish Blanketing Screen.Caused by Severe Anoxic Conditions.Biofouling Task Force Working to Improve Screen PerformanceBiofouling
ML20091L13128 June 1984NPDES Noncompliance Notification:On 840620,Outfall 101 Sanitary Waste Experienced Noncompliance Re five-day Biochemical Oxygen Demand.On 840625,sample Indicating Level of 57.7 mg/1 Was Read,Exceeding Daily Max of 45 mg/1
ML20091L14224 April 1984NPDES Noncompliance Notification:On 840130 & 31,effluent Ph Analysis from Outfall 101 (Sewage Treatment Plant) Showed Values Below NPDES of 6 for 48 H.Lime Additions Were Made to Increase Ph.Emphasized Proper Disposal of Liquid Wastes
ML20087P6102 April 1984Forwards NPDES Noncompliance Notification:On 840329,violent Storm Caused Grass & Other Debris to Be Swept by Waves & High Winds Into Water Boxes,Restricting Flow of Cooling Water & Increasing Temp.Debris Cleared & Temp DecreasedHigh winds
ML20081D36730 September 1983NPDES Noncompliance Notification:On 830919,reactor & Turbine Manually Tripped Due to Fish Kill in Intake Embayment Which Clogged Travelling Screens.Caused by Upwelling of Low Dissolved Oxygen Waters.Task Force Established
ML20091L14722 June 1983NPDES Noncompliance Notification:On 830621,Monitoring Point 101 Experienced Total Residual Chlorine of 2 Ppm.Pump Was Vented & Returned to Svc.Due to Infrequent & Unpredictability of Event,No Action Deemed Necessary
ML20076J04224 May 1983NPDES Noncompliance Notification:On 830520,during Receipt of Load of Bulk Aqueous Ammonia,Storage Tank Overflowed & 50-100 Gallons of Ammonia Solution Entered Outfall 002. Caused by Improper Attention During Chemical Transfer
ML20073H44029 March 1983NPDES Noncompliance Notification:On 830325,temp Limit for Condensers Exceeded for Two Consecutive Hours.Low Tide & Severe Wave Action Due to High Winds Sweeping Debris Into Water Boxes.Debris RemovedHigh winds
ML20073H47729 March 1983Corrected NPDES Noncompliance Notification:On 821203,weekly Coliform Analysis from Monitoring Point 101 of Outfall 001 Showed Concentration Greater than 1,609 mpn/100 Ml.On 821212,effluent Chlorine Analysis Not Performed
ML20079N42915 February 1983NPDES Noncompliance Notification:On 830211,temp Increased Across Condensers for Outfall 001.Caused by Restricted Cooling Water Flow Due to Greases & Other Debris Broken Loose by Severe Weather.Debris Removed
ML20091L1539 February 1983NPDES Noncompliance Notification:On 830126,results Indicated Coliform Concentrations to Be 109 MPN/100 Ml,Exceeding Limit of 70 MPN/100 Ml.On 830201,suspended Solids Limitations Had Value of 46.6 Mg/L.Raw Sewage Pumps Were Left on Manual
ML20091L15824 January 1983NPDES Noncompliance Notification:On 830112,Outfall 101, Monitoring Point 101 Experienced Total Residual Chlorine of 3 Ppm.Caused by Failure of Pump Used to Add Dechlorinating Agent.Spare Pumps on Site Allowed Rapid Corrective Action
ML20070Q51411 January 1983NPDES Noncompliance Notifications:Over Two 12 H Periods,Ph Values Over Specs While Releasing 45,000 Gallons Max.On 821203,coliform Analysis Revealed Concentration Above Spec. on 821212,chlorine Analysis Not PerformedGrab sample
ML20091L17022 November 1982NPDES Noncompliance Notification:On 821015,component Yeilded Oil & Grease & Suspended Solids Higher than Permit Restrictions.Incident Possibly Caused by Auxiliary Bldg Drain Problem.Temporary Analysis Program Implemented
ML20091L17615 September 1982NPDES Noncompliance Notification:On 820831-0901,approx 6,800 Gallons of 5.9 Ph Water Was Discharged Via Outfall 104 to Chesapeake Bay.Caused by Improper Valve Closure on Inlet of Discharge Tank.Preventive Maint Schedule Implemented
ML20091L18821 July 1982NPDES Noncompliance Notification:On 820602,weekly Coliform Analysis from Outfall 101 Revealed Concentration of 79 Mpn/ 100 Ml.Apparent Cause Unknown & Because of Above Suggested Scenario,Cannot Be Ascertained.Operator Reinstructed
ML20091L21125 February 1982NPDES Noncompliance Notification:On 820106,backup Sample Confirmed Ph of 9.1.Caused by High Ammonia Concentration in Yard Oil Interceptor.No Direct Cause Could Be Found. Investigation Continuing
ML20091L19625 February 1982NPDES Noncompliance Notification:On 820219 Coliform Results from 820217 Sample Found to Be 160 mpn/100 Ml.Caused by Contaminated Sodium Thiosulfate Chemical Addition Tank. Condition Corrected
ML20091L21828 August 1981NPDES Noncompliance Notification:On 810810,operator Discovered Leakage Past Drain Valve for 12 Waste Neutralization Tank (Wnt).Caused by Damaged Seat of Wnt Drain Valve.Valve Replaced
ML20091L22124 July 1981NPDES Noncompliance Notification:On 810605,weekly Coliform Analysis Showed Concentration Greater than 1609 mpn/100 Ml. Caused by Contaminated Sodium Thiosulfate Containers Used for Dechlorination.Housekeeping Frequency Increased
ML20091L22824 July 1981NPDES Noncompliance Notification:During Month of June,No Radioactive Releases Were Accomplished Through Outfall 105B, Miscellaneous Waste Monitor Tank
ML20091L2298 July 1981NPDES Noncompliance Notification:On 810702,influent Sump to Site Sewage Treatment Plant Overflowed,Dumping Raw Sewage to Storm Drain.Caused by Removal of One Lift Pump from Svc. Proper Care Will Be Exercised When Performing Maint
ML20091L25112 May 1981NPDES Noncompliance Notification:On 810423,outside Operator Discovered Drain Valve for 12 Waste Neutralizing Tank (Wnt) Open.Caused by Operator Failure to Follow Procedures. Operators Involved Received Appropriate Disciplinary Action
ML20091L2649 March 1981NPDES Noncompliance Notification:On 810206,10,13 & 28, Coliform Readings Were 278 mpn/100 ml,918 mpn/100 ml,1609 mpn/100 Ml & 542 mpn/100 Ml,Respectively.Caused by High Flow Experienced by Sewage Treatment Plant
ML20091L27724 February 1981NPDES Noncompliance Notification:On 810228,effluent Sample Contained 75.9 Mg/L Suspended Solids.On 810110,13 & 28, Coliform Readings Were 1609 mpn/100 ml,1180 mpn/100 Ml & 1609 mpn/100 Ml,Respectively
ML20091L2874 February 1981NPDES Noncompliance Notification:On 811012,free Available Chlorine Determined to Be .7 mg/1.On 811121,recorded Reading of 1.5 Mg/L Free Available Chlorine.On 811029,determined Coliform Reading of 345 MPN/100 Ml
ML20091L2932 February 1981NPDES Noncompliance Notification:On 801029,results from Sample Drawn for Routine Weekly Coliform Analysis Indicated Concentration of 345 mpn/100 Ml.Caused by High Flow to Plant Soon After Start of Refueling Outage
ML20091L3008 December 1980NPDES Noncompliance Notification:On 801202,sample Drawn for Routine Weekly Coliform Analysis Indicated (on 801204) Concentration of Greater than 2,000 mpn/100 Ml.Caused by Unusually High Flow to Plant.Chlorine Tank Was Drained
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