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Tennessee State Parks

Sewage treatment plant, Gallatin, Tennessee. NPDES permit TN0058220, in force until Dec 31, 2029. Last 12 months: over a limit 13 times (last August 2026), 19 required values missing, 4 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form G monthly (15 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 15 required values missing, 1 of 9 reports late

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

All 13 values over a limit
Period endingParameterReportedLimitOver by
June 2026E. coli, daily maximum792 #/100mL≤ 410 #/100mL93%
June 2026E. coli, monthly average792 #/100mL≤ 126 #/100mL529%
June 2026Nitrogen, ammonia total [as N], daily maximum27.5 mg/L≤ 10 mg/L175%
June 2026Nitrogen, ammonia total [as N], monthly average27.5 mg/L≤ 5 mg/L450%
July 2026BOD, 5-day, 20 deg. C, monthly average12 mg/L≤ 10 mg/L20%
July 2026Nitrogen, ammonia total [as N], daily maximum45.2 mg/L≤ 10 mg/L352%
July 2026Nitrogen, ammonia total [as N], monthly average44.3 mg/L≤ 5 mg/L786%
July 2026pH, daily minimum5.3 SU≥ 6 SU—
August 2026Nitrogen, ammonia total [as N], daily maximum46.4 mg/L≤ 10 mg/L364%
August 2026Nitrogen, ammonia total [as N], monthly average40.2 mg/L≤ 5 mg/L704%
August 2026Solids, total suspended, daily maximum60 mg/L≤ 45 mg/L33%
August 2026Solids, total suspended, monthly average39 mg/L≤ 30 mg/L30%
August 2026pH, daily minimum4.8 SU≥ 6 SU—

Limits in force (15)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]daily minimum≥ 5 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 10 mg/Lall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 20 mg/Lall year
pHdaily minimum≥ 6 SUall year
pHdaily maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendeddaily maximum≤ 45 mg/Lall year
Solids, settleabledaily maximum≤ 1 mL/Lall year
Nitrogen, ammonia total [as N]monthly average≤ 5 mg/Lall year
Nitrogen, ammonia total [as N]daily maximum≤ 10 mg/Lall year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Chlorine, total residualdaily maximum≤ .019 mg/Lall year
E. colimonthly average≤ 126 #/100mLall year
E. colidaily maximum≤ 410 #/100mLall year

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/TN0058220 · MCP: https://passage-data.com/mcp