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City of Franklin

Sewage treatment plant, major discharger, Franklin, Tennessee. NPDES permit TN0028827, in force until Dec 31, 2026. Last 12 months: over a limit 16 times (last September 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form G monthly (37 values), outfall 001 form H monthly (50 values), outfall 002 form G monthly (8 values), outfall INF1 form G monthly (6 values)
Renewal application due
Jul 4, 2026 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
19 values over a limit, 0 required values missing, 1 of 48 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

All 16 values over a limit
Period endingParameterReportedLimitOver by
October 2025Nitrogen, total [as N], annual average346 lb/d≤ 290 lb/d19%
November 2025Nitrogen, total [as N], annual average352 lb/d≤ 290 lb/d21%
December 2025Nitrogen, total [as N], annual average343 lb/d≤ 290 lb/d18%
December 2025SSO, Dry Weather, monthly total1 occur/mo≤ 0 occur/mo—
January 2026Nitrogen, total [as N], annual average345 lb/d≤ 290 lb/d19%
February 2026Nitrogen, total [as N], annual average332 lb/d≤ 290 lb/d14%
February 2026SSO, Dry Weather, monthly total1 occur/mo≤ 0 occur/mo—
March 2026E. coli, daily maximum2419.6 #/100mL≤ 941 #/100mL157%
March 2026Nitrogen, total [as N], annual average320 lb/d≤ 290 lb/d10%
April 2026Nitrogen, total [as N], annual average308 lb/d≤ 290 lb/d6%
May 2026Nitrogen, ammonia total [as N], daily maximum1.2 mg/L≤ .8 mg/L50%
May 2026Nitrogen, total [as N], annual average300 lb/d≤ 290 lb/d3%
July 2026Nitrogen, ammonia total [as N], daily maximum1.6 mg/L≤ .8 mg/L100%
July 2026Nitrogen, total [as N], annual average293 lb/d≤ 290 lb/d1%
July 2026SSO, Wet Weather, monthly total1 occur/mo≤ 0 occur/mo—
September 2026Nitrogen, total [as N], annual average299 lb/d≤ 290 lb/d3%

Limits in force (131)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]instantaneous minimum≥ 8 mg/Lall year001
Oxygen, dissolved [DO]instantaneous minimum≥ 8 mg/Lall year001
pHminimum≥ 6 SUall year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 10 mg/LMay–Oct001
Solids, total suspendedmonthly average≤ 7.5 mg/LMay–Oct001
Solids, total suspendedmonthly average≤ 30 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Solids, total suspendedmonthly average≤ 23 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Solids, total suspendedweekly average≤ 15 mg/LMay–Oct001
Solids, total suspendedweekly average≤ 12.3 mg/LMay–Oct001
Solids, total suspendedweekly average≤ 40 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Solids, total suspendedweekly average≤ 30 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Solids, total suspendeddaily maximum≤ 20 mg/LMay–Oct001
Solids, total suspendeddaily maximum≤ 15 mg/LMay–Oct001
Solids, total suspendeddaily maximum≤ 45 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Solids, total suspendeddaily maximum≤ 34 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Solids, total suspendedmonthly average≤ 1001 lb/dMay–Oct001
Solids, total suspendedmonthly average≤ 1001 lb/dMay–Oct001
Solids, total suspendedmonthly average≤ 3002 lb/dJan, Feb, Mar, Apr, Nov, Dec001
Solids, total suspendedmonthly average≤ 3002 lb/dJan, Feb, Mar, Apr, Nov, Dec001
Solids, total suspendedweekly average≤ 1501 lb/dMay–Oct001
Solids, total suspendedweekly average≤ 1501 lb/dMay–Oct001
Solids, total suspendedweekly average≤ 4003 lb/dJan, Feb, Mar, Apr, Nov, Dec001
Solids, total suspendedweekly average≤ 4003 lb/dJan, Feb, Mar, Apr, Nov, Dec001
Solids, settleabledaily maximum≤ 1 mL/Lall year001
Solids, settleabledaily maximum≤ 1 mL/Lall year001
Nitrogen, total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, total [as N]daily maximumreport only (mg/L)all year001
Nitrogen, total [as N]daily maximumreport only (mg/L)all year001
Nitrogen, total [as N]annual average≤ 290 lb/dall year001
Nitrogen, total [as N]annual average≤ 290 lb/dall year001
Nitrogen, ammonia total [as N]monthly average≤ 1.5 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 1.1 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ .4 mg/LMay–Oct001
Nitrogen, ammonia total [as N]monthly average≤ .3 mg/LMay–Oct001
Nitrogen, ammonia total [as N]weekly average≤ 2.3 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]weekly average≤ 1.7 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]weekly average≤ .6 mg/LMay–Oct001
Nitrogen, ammonia total [as N]weekly average≤ .45 mg/LMay–Oct001
Nitrogen, ammonia total [as N]daily maximum≤ 3 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 2.3 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ .8 mg/LMay–Oct001
Nitrogen, ammonia total [as N]daily maximum≤ .6 mg/LMay–Oct001
Nitrogen, ammonia total [as N]monthly average≤ 150 lb/dJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 150 lb/dJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 40 lb/dMay–Oct001
Nitrogen, ammonia total [as N]monthly average≤ 40 lb/dMay–Oct001
Nitrogen, ammonia total [as N]weekly average≤ 230 lb/dJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]weekly average≤ 230 lb/dJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]weekly average≤ 60 lb/dMay–Oct001
Nitrogen, ammonia total [as N]weekly average≤ 60 lb/dMay–Oct001
Phosphorus, total [as P]monthly averagereport only (mg/L)all year001
Phosphorus, total [as P]monthly averagereport only (mg/L)all year001
Phosphorus, total [as P]daily maximumreport only (mg/L)all year001
Phosphorus, total [as P]daily maximumreport only (mg/L)all year001
Phosphorus, total [as P]rolling average≤ 63693 lb/yrall year001
Phosphorus, total [as P]rolling average≤ 63693 lb/yrall year001
Copper, total [as Cu]monthly average≤ .67 lb/dall year001
Copper, total [as Cu]daily maximum≤ 1.08 lb/dall year001
Lead, total [as Pb]monthly average≤ .92 lb/dall year001
Lead, total [as Pb]daily maximum≤ 10.9 lb/dall year001
Nickel, total [as Ni]monthly average≤ 3.16 lb/dall year001
Nickel, total [as Ni]daily maximum≤ 28.61 lb/dall year001
Zinc, total [as Zn]monthly average≤ 10.76 lb/dall year001
Zinc, total [as Zn]daily maximum≤ 10.67 lb/dall year001
Selenium, total [as Se]monthly average≤ .5 lb/dall year001
Phenolics, total recoverablemonthly average≤ 144.9 lb/dall year001
Diethyl phthalatemonthly average≤ 637.4 lb/dall year001
Methylene chloridemonthly average≤ 85.5 lb/dall year001
Di[2-ethylhexyl] phthalate [DEHP]monthly average≤ .3 lb/dall year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all 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
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
E. colimonthly geometric mean≤ 126 #/100mLall year001
E. colimonthly geometric mean≤ 126 #/100mLall year001
E. colidaily maximum≤ 941 #/100mLall year001
E. colidaily maximum≤ 941 #/100mLall year001
SSO, Dry Weathermonthly total≤ 0 occur/moall year001
SSO, Dry Weathermonthly total≤ 0 occur/moall year001
SSO, Wet Weathermonthly total≤ 0 occur/moall year001
SSO, Wet Weathermonthly total≤ 0 occur/moall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 7.5 mg/LJan, Feb, Mar, Apr, Nov, Dec001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 4 mg/LMay–Oct001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/LJan, Feb, Mar, Apr, Nov, Dec001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 3 mg/LMay–Oct001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 11.3 mg/LJan, Feb, Mar, Apr, Nov, Dec001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 6 mg/LMay–Oct001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 15 mg/LJan, Feb, Mar, Apr, Nov, Dec001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 4.5 mg/LMay–Oct001
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 15 mg/LJan, Feb, Mar, Apr, Nov, Dec001
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 8 mg/LMay–Oct001
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 20 mg/LJan, Feb, Mar, Apr, Nov, Dec001
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 6 mg/LMay–Oct001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 1001 lb/dJan, Feb, Mar, Apr, Nov, Dec001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 400 lb/dMay–Oct001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 1001 lb/dJan, Feb, Mar, Apr, Nov, Dec001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 400 lb/dMay–Oct001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 1500 lb/dJan, Feb, Mar, Apr, Nov, Dec001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 600 lb/dMay–Oct001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 1500 lb/dJan, Feb, Mar, Apr, Nov, Dec001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 600 lb/dMay–Oct001
BOD, carbonaceous, percent removaldaily minimum≥ 40 %all year001
BOD, carbonaceous, percent removaldaily minimum≥ 40 %all year001
BOD, carbonaceous, percent removalmonthly average minimum≥ 85 %all year001
BOD, carbonaceous, percent removalmonthly average minimum≥ 85 %all year001
Solids, suspended percent removaldaily minimum≥ 40 %all year001
Solids, suspended percent removaldaily minimum≥ 40 %all year001
Solids, suspended percent removalmonthly average minimum≥ 85 %all year001
Solids, suspended percent removalmonthly average minimum≥ 85 %all year001
IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubiaminimum> 90 %all year001
IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubiaminimum> 90 %all year001
IC25 Static Renewal 7 Day Chronic Pimephalesminimum> 90 %all year001
IC25 Static Renewal 7 Day Chronic Pimephalesminimum> 90 %all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002
Chlorine, total residualaveragereport only (mg/L)Mar, Jun, Sep, Dec002
Chlorine, total residualmaximumreport only (mg/L)Mar, Jun, Sep, Dec002
Chlorine, total residualdaily minimum≥ 1 mg/Lall year002
E. coliaveragereport only (#/100mL)Mar, Jun, Sep, Dec002
E. colidaily maximumreport only (#/100mL)Mar, Jun, Sep, Dec002
E. colidaily maximum≤ 23 #/100mLall year002
Solids, total suspendedmonthly averagereport only (mg/L)all yearINF1
Solids, total suspendeddaily maximumreport only (mg/L)all yearINF1
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.

Check this month's numbers Email me before each report is due

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/TN0028827 · MCP: https://passage-data.com/mcp