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 Issue dateTitleTopic
ML20248M10326 May 1998NPDES Noncompliance Notification:On 980518,spill of Sodium Hypochlorite Occurred.Sys Was Shut Down & Monitoring Was Conducted to Verify That No Detectable Total Residual Chlorine Discharged from Outfall 101 to Tn RiverZebra Mussel
ML20245G89726 April 1989NPDES Noncompliance Notification:On 880801,dead Fish Discovered in Intake Forebay & Sample of Intake Water Analyzed for Total Residual Chlorine.Caused by Release of Sodium Hypochlorite to Water.Levels within NPDES Limits
ML20155J03220 October 1988NPDES Noncompliance Notification:On 880801,util Reported Kill of Approx 278 Fish in Intake Forebay.Caused by Low Dissolved Oxygen Levels in Water Withdrawn from Chickamauga Reservoir.Conditions in Reservoir Improved.Count Terminated
ML20151Q2503 August 1988Noncompliance Notification:On 880711,approx 1,500 Dead Fish Discovered in Diffuser Pond.Species Killed Were Threadfin & Gizzard Shad.Caused by Thermal Stress.Fish Removed & Allowed to Decay in Place
ML20100G64027 March 1985NPDES Noncompliance Notification:On 850107,11,18 & 31,temp Rise Limit & Rate of Temp Change Limit Exceeded at Diffuser Discharge Gate.Caused by Malfunctions of Equipment,Including Cooling Tower Lift Pumps
ML20099G4875 March 1985NPDES Noncompliance Notification:On 840808 & 10,total Residual Chlorine Concentrations Exceeding Permit Limitation Detected in Grab Samples.Caused by Malfunction of Sodium Hypochlorite Pumps.Pumps RepairedGrab sample
ML20091F87528 May 1984NPDES Discharge Monitoring Repts for Feb-Apr 1984
ML20076E10223 May 1983NPDES Noncompliance Notification:On 830326 & 28,temp Rise Between Upstream Ambient Monitor & Downstream River Monitor Exceeded 5.4 F Limit.Caused by Low Riverflows.Cooling Tower & Increased Riverflows Used to Eliminate Delta Temp Changes
ML20069H69731 March 1983NPDES Noncompliance Notification:On 830314,samples of Effluent Yard Drainage Pond Exceeded Allowable Ph Values. Caused by Accidently Damaged Sodium Hydroxide Tank Valve Releasing Contents Into Drainage Sys.Personnel CounseledGrab sample
ML20071D9468 March 1983NPDES Noncompliance Notification:On 830223,grab Sample Collected from Concrete Batch Plant Settling Pond Contained 53 Mg/L Total Suspended Solids.Caused by Rainfall Runoff Vol Exceeding Treatment Capacity of Pool.No Action TakenGrab sample
ML20079P32716 February 1983NPDES Noncompliance Notification:Determined That Natl Pollutant Discharge Elimination Sys Permit Should Be Issued W/No Substantial Changes from Tentative Determinations Previously Announced
ML20055C0805 August 1982NPDES Noncompliance Notification:On 820721,three Samples of Yard Drainage Pond Effluent Contained Oil & Grease Concentrations Exceeding Daily Max Permit Limitation.Caused by Tanker Overflowing.Oil Absorbent Pillows Deployed
ML20058J56522 July 1982NPDES Noncompliance Notification:On 820707,diffuser Discharged Into Tn River.Caused by Analytical Error Re Inoperable Titrator.Titrator Repaired & Returned to Svc. Spare Parts for Titrator on Emergency Order
ML20054E90710 June 1982Notification of 820515 Noncompliance W/Effluent Limitations Re Diffuser Gate Discharge to Tn River.Cause Unknown. Increase in Release Vol from Chickamauga Dam Initiated to Increase Riverflow Past Plant to Increase Mixing Ratio
ML20050B7981 April 1982NPDES Noncompliance Notification:On 820304 Svc Bldg Sump Samples Contained Concentration of Oil & Grease in Excess of Tech Specs Limit.Caused by Sump Not Being Cleaned Daily to Remove Normal Buildup of Oil.Sump Will Be Cleaned Daily
ML20038C9109 December 1981NPDES Noncompliance Notification:On 811130,svc Bldg Sump Sample Exceeded Max Permit Limitation of Total Suspended Solids.Caused by Plant Workload Precluding Routine Sump Cleaning.Sump Cleaned on 811202
ML20004C4651 June 1981NPDES Noncompliance Notification:On 810319,sample Const Sewage Treatment Plant Effluent Had Ph of Less than Min Limits.Cause Not Known.Sodium Bicarbonate Added to Plant on 810319 to Increase Ph
ML19346A0081 June 1981NPDES Noncompliance Notification:On 810507,svc Bldg Sump Discharge Found to Exceed Max Permissible Limit of 20 Mg Per Liter for Average Oil & Grease Concentration.Cleaning Solutions Believed Poured Down Svc Bldg Drains
ML19347E91711 May 1981NPDES Noncompliance Notification:On 810427 Const Sewage Treatment Plant Effluent Sample Collected Less than Min Permit Limitation.Possibly Caused by Potable Water Being Turned Off Over Weekend Resulting in Flow Decrease
ML19347E61011 May 1981NPDES Noncompliance Notification:On 810429,plant Effluent Sample Collected & Exceeded Max Permit Limitation.Possibly Caused by Sand Filter Sys Not Fully Recovered from Upset Described in 810417 Notification of Noncompliance