City of Nashville

NPDES permit GA0039365 · Major POTW · effective, expires 2030-02-28 · EPA's file as of 2026-09-19

Check this month's numbers before you file
Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

EPA's record, 2025-09-01 to 2026-08-31

0values over a limit
0required values missing, on 0 form(s)
3of 281 forms filed late

Last period with anything received: 2026-07-31.

Reporting

Reports are due about 15 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (207)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]MINIMUM >= 6 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 4.5 mg/L all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 6.8 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 38 lb/d all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 47 lb/d all year
001BOD, 5-day, 20 deg. CMO AVG report only all year
001BOD, 5-day, 20 deg. CWKLY AVG report only all year
001BOD, 5-day, 20 deg. CMO AVG report only all year
001BOD, 5-day, 20 deg. CWKLY AVG report only all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 8.5 SU all year
001Solids, total suspendedMO AVG <= 5 mg/L all year
001Solids, total suspendedWKLY AVG <= 7.5 mg/L all year
001Solids, total suspendedMO AVG <= 42 lb/d all year
001Solids, total suspendedWKLY AVG <= 52 lb/d all year
001Solids, total suspendedMO AVG report only all year
001Solids, total suspendedWKLY AVG report only all year
001Solids, total suspendedMO AVG report only all year
001Solids, total suspendedWKLY AVG report only all year
001Nitrogen, total [as N]MO AVG <= 10 mg/L all year
001Nitrogen, total [as N]WKLY AVG <= 15 mg/L all year
001Nitrogen, total [as N]MO AVG <= 83 lb/d all year
001Nitrogen, total [as N]WKLY AVG <= 104 lb/d all year
001Nitrogen, organic total [as N]MO AVG report only all year
001Nitrogen, ammonia total [as N]MO AVG <= .7 mg/L all year
001Nitrogen, ammonia total [as N]WKLY AVG <= 1.1 mg/L all year
001Nitrogen, ammonia total [as N]MO AVG <= 5.8 lb/d all year
001Nitrogen, ammonia total [as N]WKLY AVG <= 7.3 lb/d all year
001Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
001Nitrite + Nitrate total [as N]MO AVG report only all year
001Phosphorus, total [as P]MO AVG <= 1 mg/L all year
001Phosphorus, total [as P]WKLY AVG <= 1.5 mg/L all year
001Phosphorus, total [as P]MO AVG <= 8.3 lb/d all year
001Phosphorus, total [as P]WKLY AVG <= 10.4 lb/d all year
001Phosphate, ortho [as P]MO AVG report only all year
001Flow, in conduit or thru treatment plantMO AVG <= 1 MGD all year
001Flow, in conduit or thru treatment plantWKLY AVG <= 1.25 MGD all year
001Chlorine, total residualMAXIMUM <= .02 mg/L all year
001E. coliMOAV GEO <= 20 #/100mL all year
001E. coliWE <= 40 #/100mL all year
001Solids, sludge, total, dry weightMO TOTAL report only all year
001BOD, 5-day, percent removalMINIMUM >= 85 % all year
001Solids, suspended percent removalMINIMUM >= 85 % all year
001NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiaMINIMUM report only all year
001NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelasMINIMUM report only all year
001NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiaMINIMUM report only all year
001NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelasMINIMUM report only all year
002BOD, 5-day, 20 deg. CMO AVG <= 50 mg/L all year
002BOD, 5-day, 20 deg. CMO AVG report only all year
002pHMINIMUM >= 6 SU all year
002pHMAXIMUM <= 9 SU all year
002Solids, total suspendedMO AVG <= 90 mg/L all year
002Solids, total suspendedMO AVG report only all year
002Flow, in conduit or thru treatment plantMO AVG <= .25 MGD all year
002Flow, in conduit or thru treatment plantWKLY AVG <= .31 MGD all year
003pHMINIMUM report only all year
003pHMAXIMUM report only all year
003Nitrogen, nitrate total [as N]MO AVG report only all year
003Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
003RainfallMO TOTAL report only all year
003Flow, in conduit or thru treatment plantMO AVG report only all year
004ConductivityMINIMUM report only all year
004ConductivityMAXIMUM report only all year
004pHMINIMUM report only all year
004pHMAXIMUM report only all year
004Nitrogen, nitrate total [as N]MAXIMUM report only all year
004E. coliMAXIMUM report only all year
004Depth to water level ft below landsurfaceMINIMUM report only all year
004Depth to water level ft below landsurfaceMAXIMUM report only all year
005ConductivityMINIMUM report only all year
005ConductivityMAXIMUM report only all year
005pHMINIMUM report only all year
005pHMAXIMUM report only all year
005Nitrogen, nitrate total [as N]MAXIMUM report only all year
005E. coliMAXIMUM report only all year
005Depth to water level ft below landsurfaceMINIMUM report only all year
005Depth to water level ft below landsurfaceMAXIMUM report only all year
006ConductivityMINIMUM report only all year
006ConductivityMAXIMUM report only all year
006pHMINIMUM report only all year
006pHMAXIMUM report only all year
006Nitrogen, nitrate total [as N]MAXIMUM report only all year
006E. coliMAXIMUM report only all year
006Depth to water level ft below landsurfaceMINIMUM report only all year
006Depth to water level ft below landsurfaceMAXIMUM report only all year
007ConductivityMINIMUM report only all year
007ConductivityMAXIMUM report only all year
007pHMINIMUM report only all year
007pHMAXIMUM report only all year
007Nitrogen, nitrate total [as N]MAXIMUM report only all year
007E. coliMAXIMUM report only all year
007Depth to water level ft below landsurfaceMINIMUM report only all year
007Depth to water level ft below landsurfaceMAXIMUM report only all year
008ConductivityMINIMUM report only all year
008ConductivityMAXIMUM report only all year
008pHMINIMUM report only all year
008pHMAXIMUM report only all year
008Nitrogen, nitrate total [as N]MAXIMUM report only all year
008E. coliMAXIMUM report only all year
008Depth to water level ft below landsurfaceMINIMUM report only all year
008Depth to water level ft below landsurfaceMAXIMUM report only all year
009ConductivityMINIMUM report only all year
009ConductivityMAXIMUM report only all year
009pHMINIMUM report only all year
009pHMAXIMUM report only all year
009Nitrogen, nitrate total [as N]MAXIMUM report only all year
009E. coliMAXIMUM report only all year
009Depth to water level ft below landsurfaceMINIMUM report only all year
009Depth to water level ft below landsurfaceMAXIMUM report only all year
010ConductivityMINIMUM report only all year
010ConductivityMAXIMUM report only all year
010pHMINIMUM report only all year
010pHMAXIMUM report only all year
010Nitrogen, nitrate total [as N]MAXIMUM report only all year
010E. coliMAXIMUM report only all year
010Depth to water level ft below landsurfaceMINIMUM report only all year
010Depth to water level ft below landsurfaceMAXIMUM report only all year
011ConductivityMINIMUM report only all year
011ConductivityMAXIMUM report only all year
011pHMINIMUM report only all year
011pHMAXIMUM report only all year
011Nitrogen, nitrate total [as N]MAXIMUM report only all year
011E. coliMAXIMUM report only all year
011Depth to water level ft below landsurfaceMINIMUM report only all year
011Depth to water level ft below landsurfaceMAXIMUM report only all year
012ConductivityMINIMUM report only all year
012ConductivityMAXIMUM report only all year
012pHMINIMUM report only all year
012pHMAXIMUM report only all year
012Nitrogen, nitrate total [as N]MAXIMUM <= 10 mg/L all year
012E. coliMAXIMUM <= 0 #/100mL all year
012Depth to water level ft below landsurfaceMINIMUM report only all year
012Depth to water level ft below landsurfaceMAXIMUM report only all year
013ConductivityMINIMUM report only all year
013ConductivityMAXIMUM report only all year
013pHMINIMUM report only all year
013pHMAXIMUM report only all year
013Nitrogen, nitrate total [as N]MAXIMUM <= 10 mg/L all year
013E. coliMAXIMUM <= 0 #/100mL all year
013Depth to water level ft below landsurfaceMINIMUM report only all year
013Depth to water level ft below landsurfaceMAXIMUM report only all year
014ConductivityMINIMUM report only all year
014ConductivityMAXIMUM report only all year
014pHMINIMUM report only all year
014pHMAXIMUM report only all year
014Nitrogen, nitrate total [as N]MAXIMUM <= 10 mg/L all year
014E. coliMAXIMUM <= 0 #/100mL all year
014Depth to water level ft below landsurfaceMINIMUM report only all year
014Depth to water level ft below landsurfaceMAXIMUM report only all year
015ConductivityMINIMUM report only all year
015ConductivityMAXIMUM report only all year
015pHMINIMUM report only all year
015pHMAXIMUM report only all year
015Nitrogen, nitrate total [as N]MAXIMUM <= 10 mg/L all year
015E. coliMAXIMUM <= 0 #/100mL all year
015Depth to water level ft below landsurfaceMINIMUM report only all year
015Depth to water level ft below landsurfaceMAXIMUM report only all year
016ConductivityMINIMUM report only all year
016ConductivityMAXIMUM report only all year
016pHMINIMUM report only all year
016pHMAXIMUM report only all year
016Nitrogen, nitrate total [as N]MAXIMUM <= 10 mg/L all year
016E. coliMAXIMUM <= 0 #/100mL all year
016Depth to water level ft below landsurfaceMINIMUM report only all year
016Depth to water level ft below landsurfaceMAXIMUM report only all year
017ConductivityMINIMUM report only all year
017ConductivityMAXIMUM report only all year
017pHMINIMUM report only all year
017pHMAXIMUM report only all year
017Nitrogen, nitrate total [as N]MAXIMUM <= 10 mg/L all year
017E. coliMAXIMUM <= 0 #/100mL all year
017Depth to water level ft below landsurfaceMINIMUM report only all year
017Depth to water level ft below landsurfaceMAXIMUM report only all year
018ConductivityMINIMUM report only all year
018ConductivityMAXIMUM report only all year
018pHMINIMUM report only all year
018pHMAXIMUM report only all year
018Nitrogen, nitrate total [as N]MAXIMUM <= 10 mg/L all year
018E. coliMAXIMUM <= 0 #/100mL all year
018Depth to water level ft below landsurfaceMINIMUM report only all year
018Depth to water level ft below landsurfaceMAXIMUM report only all year
019ConductivityMINIMUM report only all year
019ConductivityMAXIMUM report only all year
019pHMINIMUM report only all year
019pHMAXIMUM report only all year
019Nitrogen, nitrate total [as N]MAXIMUM <= 10 mg/L all year
019E. coliMAXIMUM <= 0 #/100mL all year
019Depth to water level ft below landsurfaceMINIMUM report only all year
019Depth to water level ft below landsurfaceMAXIMUM report only all year
020ConductivityMINIMUM report only all year
020ConductivityMAXIMUM report only all year
020pHMINIMUM report only all year
020pHMAXIMUM report only all year
020Nitrogen, nitrate total [as N]MAXIMUM <= 10 mg/L all year
020E. coliMAXIMUM <= 0 #/100mL all year
020Depth to water level ft below landsurfaceMINIMUM report only all year
020Depth to water level ft below landsurfaceMAXIMUM report only all year
022Spray irrigation, application rateWKLY MAX <= .55 in/wk all year
022Spray irrigation, application rateWKLY MAX <= .55 in/wk all year
022Spray irrigation, application rateWKLY MAX <= .55 in/wk all year
022Spray irrigation, application rateWKLY MAX <= .55 in/wk all year
022Spray irrigation, application rateWKLY MAX <= .55 in/wk all year
022Spray irrigation, application rateINST MAX <= .25 in/hr all year
022Spray irrigation, application rateINST MAX <= .25 in/hr all year
022Spray irrigation, application rateINST MAX <= .25 in/hr all year
022Spray irrigation, application rateINST MAX <= .25 in/hr all year
022Spray irrigation, application rateINST MAX <= .25 in/hr all year

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