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City of Parsons

Sewage treatment plant, Parsons, Tennessee. NPDES permit TN0061727, in force until Nov 30, 2028. Last 12 months: over a limit 32 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form G monthly (37 values), outfall INF1 form G monthly (4 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
28 values over a limit, 0 required values missing, 3 of 24 reports late

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

All 32 values over a limit
Period endingParameterReportedLimitOver by
October 2025Nitrogen, ammonia total [as N], daily maximum44.6 lb/d≤ 27 lb/d65%
October 2025Nitrogen, ammonia total [as N], daily maximum8.7 mg/L≤ 4 mg/L118%
October 2025Nitrogen, ammonia total [as N], monthly average20.509 lb/d≤ 13 lb/d58%
October 2025Nitrogen, ammonia total [as N], monthly average6.306 mg/L≤ 2 mg/L215%
October 2025Nitrogen, ammonia total [as N], weekly average20.679 lb/d≤ 20 lb/d3%
October 2025Nitrogen, ammonia total [as N], weekly average8.7 mg/L≤ 3 mg/L190%
November 2025Nitrogen, ammonia total [as N], monthly average7.208 mg/L≤ 5 mg/L44%
November 2025Nitrogen, ammonia total [as N], weekly average8.87 mg/L≤ 8 mg/L11%
December 2025Nitrogen, ammonia total [as N], monthly average6.398 mg/L≤ 5 mg/L28%
January 2026SSO, Wet Weather, monthly total2 occur/mo≤ 0 occur/mo—
February 2026Nitrogen, ammonia total [as N], daily maximum71.181 lb/d≤ 67 lb/d6%
February 2026Nitrogen, ammonia total [as N], monthly average39.413 lb/d≤ 33 lb/d19%
February 2026Nitrogen, ammonia total [as N], monthly average5.848 mg/L≤ 5 mg/L17%
February 2026Nitrogen, ammonia total [as N], weekly average71.181 lb/d≤ 53 lb/d34%
February 2026Nitrogen, ammonia total [as N], weekly average8.09 mg/L≤ 8 mg/L1%
March 2026Nitrogen, ammonia total [as N], monthly average5.49 mg/L≤ 5 mg/L10%
April 2026Nitrogen, ammonia total [as N], monthly average7.453 mg/L≤ 5 mg/L49%
April 2026Nitrogen, ammonia total [as N], weekly average8.23 mg/L≤ 8 mg/L3%
May 2026Nitrogen, ammonia total [as N], daily maximum40.775 lb/d≤ 27 lb/d51%
May 2026Nitrogen, ammonia total [as N], daily maximum8.23 mg/L≤ 4 mg/L106%
May 2026Nitrogen, ammonia total [as N], monthly average23.864 lb/d≤ 13 lb/d84%
May 2026Nitrogen, ammonia total [as N], monthly average7.453 mg/L≤ 2 mg/L273%
May 2026Nitrogen, ammonia total [as N], weekly average20.494 lb/d≤ 20 lb/d2%
May 2026Nitrogen, ammonia total [as N], weekly average8.23 mg/L≤ 3 mg/L174%
June 2026Nitrogen, ammonia total [as N], daily maximum44.377 lb/d≤ 27 lb/d64%
June 2026Nitrogen, ammonia total [as N], daily maximum6.52 mg/L≤ 4 mg/L63%
June 2026Nitrogen, ammonia total [as N], monthly average19.529 lb/d≤ 13 lb/d50%
June 2026Nitrogen, ammonia total [as N], monthly average4.495 mg/L≤ 2 mg/L125%
June 2026Nitrogen, ammonia total [as N], weekly average44.377 lb/d≤ 20 lb/d122%
June 2026Nitrogen, ammonia total [as N], weekly average6.52 mg/L≤ 3 mg/L117%
August 2026Nitrogen, ammonia total [as N], monthly average3.188 mg/L≤ 2 mg/L59%
August 2026Nitrogen, ammonia total [as N], weekly average3.28 mg/L≤ 3 mg/L9%

Limits in force (47)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]instantaneous minimum≥ 1 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≤ 667 lb/dall year001
Solids, total suspendedweekly average≤ 734 lb/dall year001
Solids, total suspendeddaily maximum≤ 801 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
Nitrogen, ammonia total [as N]monthly average≤ 2 mg/LMay–Oct001
Nitrogen, ammonia total [as N]monthly average≤ 5 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]weekly average≤ 3 mg/LMay–Oct001
Nitrogen, ammonia total [as N]weekly average≤ 8 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 4 mg/LMay–Oct001
Nitrogen, ammonia total [as N]daily maximum≤ 10 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 13 lb/dMay–Oct001
Nitrogen, ammonia total [as N]monthly average≤ 33 lb/dJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]weekly average≤ 20 lb/dMay–Oct001
Nitrogen, ammonia total [as N]weekly average≤ 53 lb/dJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 67 lb/dJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 27 lb/dMay–Oct001
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 residualmonthly average≤ .13 mg/Lall year001
Chlorine, total residualdaily maximum≤ .22 mg/Lall year001
E. colimonthly geometric mean≤ 126 #/100mLall year001
E. colidaily maximum≤ 941 #/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≤ 20 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 25 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 30 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 133 lb/dall year001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 167 lb/dall year001
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 200 lb/dall year001
BOD, carbonaceous, percent removalmonthly average minimum≥ 65 %all year001
IC25 Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiaminimum> 9 %all year001
IC25 Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelasminimum> 9 %all year001
Solids, total suspendedmonthly averagereport 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

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/TN0061727 · MCP: https://passage-data.com/mcp