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Town of Dandridge

Sewage treatment plant, Dandridge, Tennessee. NPDES permit TN0021245, in force until Jun 30, 2030. Last 12 months: over a limit 8 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form G monthly (29 values), outfall INF1 form G monthly (10 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
20 values over a limit, 0 required values missing, 0 of 15 reports late

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

Period endingParameterReportedLimitOver by
November 2025SSO, Dry Weather, monthly total1 occur/mo≤ 0 occur/mo—
December 2025E. coli, daily maximum1733 #/100mL≤ 410 #/100mL323%
February 2026SSO, Wet Weather, monthly total4 occur/mo≤ 0 occur/mo—
March 2026SSO, Dry Weather, monthly total2 occur/mo≤ 0 occur/mo—
April 2026SSO, Dry Weather, monthly total2 occur/mo≤ 0 occur/mo—
May 2026SSO, Dry Weather, monthly total1 occur/mo≤ 0 occur/mo—
June 2026SSO, Dry Weather, monthly total1 occur/mo≤ 0 occur/mo—
June 2026SSO, Wet Weather, monthly total4 occur/mo≤ 0 occur/mo—

Limits in force (39)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]instantaneous minimum≥ 1 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year001
BOD, 5-day, 20 deg. Cweekly average≤ 40 mg/Lall year001
BOD, 5-day, 20 deg. Cdaily maximum≤ 45 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 225 lb/dall year001
BOD, 5-day, 20 deg. Cweekly average≤ 300 lb/dall year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 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≤ 225 lb/dall year001
Solids, total suspendedweekly average≤ 300 lb/dall year001
Solids, settleabledaily maximum≤ 1 mL/Lall year001
Nitrogen, total [as N]daily maximumreport only (mg/L)all year001
Nitrogen, total [as N]daily maximumreport only (lb/d)all year001
Phosphorus, total [as P]daily maximumreport only (mg/L)all year001
Phosphorus, total [as P]daily maximumreport 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, 5-day, percent removaldaily minimum≥ 40 %all year001
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year001
Solids, suspended percent removaldaily minimum≥ 40 %all year001
Solids, suspended percent removalmonthly average minimum≥ 85 %all year001
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all yearINF1
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all yearINF1
Solids, total suspendedmonthly averagereport only (mg/L)all yearINF1
Solids, total suspendeddaily maximumreport only (mg/L)all yearINF1
Nitrogen, total [as N]daily maximumreport only (mg/L)all yearINF1
Nitrogen, total [as N]daily maximumreport only (lb/d)all yearINF1
Phosphorus, total [as P]daily maximumreport only (mg/L)all yearINF1
Phosphorus, total [as P]daily maximumreport only (lb/d)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

New limits from Jul 1, 2027

ParameterNew limitNew or tighterMedian, last 12 months× new limit
Chlorine, total residual, daily maximum0.2 mg/Ltighter1.25 mg/L (12 values)6.25×

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/TN0021245 · MCP: https://passage-data.com/mcp