Passage Data · Check a report · Use it from your AI

Tennessee Department of Correction (TDOC)

Sewage treatment plant, Henning, Tennessee. NPDES permit TN0057487, in force until Dec 31, 2029. Last 12 months: over a limit 19 times (last March 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form G monthly (34 values), outfall INF1 form G monthly (3 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
42 values over a limit, 0 required values missing, 0 of 21 reports late

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

All 19 values over a limit
Period endingParameterReportedLimitOver by
October 2025E. coli, daily maximum488 #/100mL≤ 410 #/100mL19%
November 2025E. coli, daily maximum1414 #/100mL≤ 410 #/100mL245%
December 2025E. coli, daily maximum1733 #/100mL≤ 410 #/100mL323%
January 2026E. coli, daily maximum1203 #/100mL≤ 410 #/100mL193%
January 2026Nitrogen, ammonia total [as N], daily maximum10.9 mg/L≤ 10 mg/L9%
January 2026Nitrogen, ammonia total [as N], daily maximum71.5 lb/d≤ 48 lb/d49%
January 2026Nitrogen, ammonia total [as N], monthly average30.4 lb/d≤ 24 lb/d27%
January 2026Nitrogen, ammonia total [as N], monthly average8.34 mg/L≤ 5 mg/L67%
January 2026Nitrogen, ammonia total [as N], weekly average10.9 mg/L≤ 7.5 mg/L45%
January 2026Nitrogen, ammonia total [as N], weekly average71.5 lb/d≤ 36 lb/d99%
February 2026E. coli, daily maximum1533 #/100mL≤ 410 #/100mL274%
February 2026E. coli, monthly geometric mean143.69 #/100mL≤ 126 #/100mL14%
February 2026Nitrogen, ammonia total [as N], daily maximum10.9 mg/L≤ 10 mg/L9%
February 2026Nitrogen, ammonia total [as N], monthly average25.7 lb/d≤ 24 lb/d7%
February 2026Nitrogen, ammonia total [as N], monthly average9.33 mg/L≤ 5 mg/L87%
February 2026Nitrogen, ammonia total [as N], weekly average10.9 mg/L≤ 7.5 mg/L45%
March 2026Nitrogen, ammonia total [as N], daily maximum13.3 mg/L≤ 10 mg/L33%
March 2026Nitrogen, ammonia total [as N], monthly average9.75 mg/L≤ 5 mg/L95%
March 2026Nitrogen, ammonia total [as N], weekly average13.3 mg/L≤ 7.5 mg/L77%

Limits in force (37)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]instantaneous minimum≥ 5 mg/Lall year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 100 mg/Lall year001
Solids, total suspendedweekly average≤ 110 mg/Lall year001
Solids, total suspendeddaily maximum≤ 120 mg/Lall year001
Solids, total suspendedmonthly average≤ 484 lb/dall year001
Solids, total suspendeddaily maximum≤ 581 lb/dall year001
Solids, total suspendedweekly average≤ 532 lb/dall year001
Solids, settleabledaily maximum≤ 1 mL/Lall year001
Nitrogen, total [as N]quarterly averagereport only (mg/L)all year001
Nitrogen, total [as N]quarterly averagereport only (lb/d)all year001
Nitrogen, ammonia total [as N]monthly average≤ 5 mg/Lall year001
Nitrogen, ammonia total [as N]weekly average≤ 7.5 mg/Lall year001
Nitrogen, ammonia total [as N]daily maximum≤ 10 mg/Lall year001
Nitrogen, ammonia total [as N]monthly average≤ 24 lb/dall year001
Nitrogen, ammonia total [as N]daily maximum≤ 48 lb/dall year001
Nitrogen, ammonia total [as N]weekly average≤ 36 lb/dall year001
Phosphorus, total [as P]quarterly averagereport only (mg/L)all year001
Phosphorus, total [as P]quarterly averagereport only (lb/d)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
Chlorine, total residualdaily maximum≤ 2 mg/Lall year001
E. colimonthly geometric mean≤ 126 #/100mLall year001
E. colidaily maximum≤ 410 #/100mLall 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≤ 25 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 35 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 40 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 121 lb/dall year001
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 193 lb/dall year001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 169 lb/dall year001
BOD, carbonaceous, percent removalmonthly average minimum≥ 65 %all year001
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

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

· Save this facility as a site · Superfund sites nearby · Your permits on one board

On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/TN0057487 · MCP: https://passage-data.com/mcp