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Tullahoma Utilities Authority

Sewage treatment plant, major discharger, Tullahoma, Tennessee. NPDES permit TN0023469, in force until Jul 31, 2027. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form G monthly (38 values), outfall INF1 form G monthly (10 values)
Renewal application due
Feb 1, 2027 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
4 values over a limit, 0 required values missing, 0 of 24 reports late

Limits in force (52)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]instantaneous minimum≥ 6 mg/Lall year001
pHdaily minimum≥ 6 SUall year001
pHdaily maximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendedweekly average≤ 40 mg/Lall year001
Solids, total suspendeddaily maximum≤ 45 mg/Lall year001
Solids, total suspendedmonthly average≤ 1251 lb/dall year001
Solids, total suspendedweekly average≤ 1668 lb/dall year001
Solids, settleabledaily maximum≤ 1 mL/Lall year001
Nitrogen, total [as N]monthly averagereport only (lb/d)Mar, Jun, Sep, Dec001
Nitrogen, total [as N]daily maximumreport only (lb/d)Mar, Jun, Sep, Dec001
Nitrogen, total [as N]rolling average≤ 121910 lb/yrall year001
Nitrogen, ammonia total [as N]monthly average≤ .99 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ .52 mg/LMay–Oct001
Nitrogen, ammonia total [as N]daily maximum≤ 5.3 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 2.3 mg/LMay–Oct001
Nitrogen, ammonia total [as N]monthly average≤ 41.1 lb/dJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 21.5 lb/dMay–Oct001
Nitrogen, ammonia total [as N]daily maximum≤ 219 lb/dJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 95.5 lb/dMay–Oct001
Phosphorus, total [as P]monthly averagereport only (lb/d)Mar, Jun, Sep, Dec001
Phosphorus, total [as P]daily maximumreport only (lb/d)Mar, Jun, Sep, Dec001
Phosphorus, total [as P]rolling average≤ 15221 lb/yrall year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
E. colimonthly geometric mean≤ 126 #/100mLall year001
E. colidaily maximum≤ 941 #/100mLall year001
Peracetic Acidmonthly average≤ .41 mg/Lall year001
Peracetic Aciddaily maximumreport only (mg/L)all year001
SSO, Dry Weathermonthly total≤ 0 occur/moall year001
SSO, Wet Weathermonthly total≤ 0 occur/moall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 15 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 20 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 417 lb/dall year001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 626 lb/dall year001
BOD, carbonaceous, percent removalmonthly average minimum≥ 85 %all year001
BOD, carbonaceous, percent removaldaily minimum≥ 40 %all year001
Solids, suspended percent removalmonthly average minimum≥ 85 %all year001
Solids, suspended percent removaldaily minimum≥ 40 %all year001
IC25 Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiaminimum> 88 %all year001
IC25 Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelasminimum> 88 %all year001
Solids, total suspendedmonthly averagereport only (mg/L)all yearINF1
Solids, total suspendeddaily maximumreport only (mg/L)all yearINF1
Nitrogen, total [as N]monthly averagereport only (lb/d)Mar, Jun, Sep, DecINF1
Nitrogen, total [as N]daily maximumreport only (lb/d)Mar, Jun, Sep, DecINF1
Phosphorus, total [as P]monthly averagereport only (lb/d)Mar, Jun, Sep, DecINF1
Phosphorus, total [as P]daily maximumreport only (lb/d)Mar, Jun, Sep, DecINF1
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearINF1
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all yearINF1
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all yearINF1
BOD, carbonaceous [5 day, 20 C]daily maximumreport only (mg/L)all yearINF1

How strict are these limits?

Cited limits by parameter: Tennessee's rules and the federal ones.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/TN0023469 · MCP: https://passage-data.com/mcp