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Town of Alamo

Sewage treatment plant, Alamo, Tennessee. NPDES permit TN0024988, in force until Jul 31, 2027. Last 12 months: over a limit 52 times (last September 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form G monthly (35 values), outfall INF1 form G monthly (6 values)
Renewal application due
Feb 1, 2027 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
79 values over a limit, 0 required values missing, 0 of 24 reports late

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

All 52 values over a limit
Period endingParameterReportedLimitOver by
October 2025BOD, carbonaceous [5 day, 20 C], daily maximum30 mg/L≤ 20 mg/L50%
October 2025BOD, carbonaceous [5 day, 20 C], monthly average10.7 mg/L≤ 10 mg/L7%
October 2025Nitrogen, ammonia total [as N], daily maximum4.26 mg/g≤ .8 mg/L—
October 2025Nitrogen, ammonia total [as N], monthly average1.537 mg/g≤ .41 mg/L—
October 2025Nitrogen, ammonia total [as N], monthly average3.233 lb/d≤ 1.4 lb/d131%
October 2025Nitrogen, ammonia total [as N], weekly average1.537 mg/g≤ .62 mg/L—
October 2025Nitrogen, ammonia total [as N], weekly average3.233 lb/d≤ 2.1 lb/d54%
November 2025BOD, carbonaceous [5 day, 20 C], daily maximum22 mg/L≤ 20 mg/L10%
November 2025Nitrogen, ammonia total [as N], daily maximum3.73 mg/L≤ 1.56 mg/L139%
November 2025Nitrogen, ammonia total [as N], daily maximum3.73 mg/g≤ .8 mg/L—
November 2025Nitrogen, ammonia total [as N], monthly average1.143 mg/L≤ .78 mg/L47%
November 2025Nitrogen, ammonia total [as N], monthly average1.143 mg/g≤ .41 mg/L—
November 2025Nitrogen, ammonia total [as N], monthly average2.054 lb/d≤ 1.4 lb/d47%
November 2025Nitrogen, ammonia total [as N], weekly average1.143 mg/g≤ .62 mg/L—
December 2025BOD, carbonaceous [5 day, 20 C], daily maximum22 mg/L≤ 20 mg/L10%
January 2026BOD, carbonaceous [5 day, 20 C], daily maximum80 mg/L≤ 20 mg/L300%
January 2026BOD, carbonaceous [5 day, 20 C], monthly average18.7 mg/L≤ 10 mg/L87%
January 2026BOD, carbonaceous [5 day, 20 C], monthly average50 lb/d≤ 34 lb/d47%
January 2026BOD, carbonaceous [5 day, 20 C], weekly average18.7 mg/L≤ 15 mg/L25%
January 2026Nitrogen, ammonia total [as N], daily maximum12 mg/L≤ 1.56 mg/L669%
January 2026Nitrogen, ammonia total [as N], monthly average3.085 mg/L≤ .78 mg/L296%
January 2026Nitrogen, ammonia total [as N], monthly average7.003 lb/d≤ 2.6 lb/d169%
January 2026Nitrogen, ammonia total [as N], weekly average3.085 mg/L≤ 1.17 mg/L164%
January 2026Nitrogen, ammonia total [as N], weekly average7.003 lb/d≤ 4.3 lb/d63%
February 2026BOD, carbonaceous [5 day, 20 C], daily maximum34 mg/L≤ 20 mg/L70%
February 2026BOD, carbonaceous [5 day, 20 C], monthly average13.9 mg/L≤ 10 mg/L39%
February 2026BOD, carbonaceous [5 day, 20 C], monthly average51.2 lb/d≤ 34 lb/d51%
February 2026BOD, carbonaceous [5 day, 20 C], weekly average51.2 lb/d≤ 51 lb/d0%
February 2026Nitrogen, ammonia total [as N], daily maximum7.67 mg/L≤ 1.56 mg/L392%
February 2026Nitrogen, ammonia total [as N], monthly average1.888 mg/L≤ .78 mg/L142%
February 2026Nitrogen, ammonia total [as N], monthly average8.392 lb/d≤ 2.6 lb/d223%
February 2026Nitrogen, ammonia total [as N], weekly average1.888 mg/L≤ 1.17 mg/L61%
February 2026Nitrogen, ammonia total [as N], weekly average8.392 lb/d≤ 4.3 lb/d95%
April 2026Nitrogen, ammonia total [as N], daily maximum3.26 mg/L≤ 1.56 mg/L109%
April 2026Nitrogen, ammonia total [as N], monthly average1.678 mg/L≤ .78 mg/L115%
April 2026Nitrogen, ammonia total [as N], monthly average4.395 lb/d≤ 2.6 lb/d69%
April 2026Nitrogen, ammonia total [as N], weekly average3.123 mg/L≤ 1.17 mg/L167%
April 2026Nitrogen, ammonia total [as N], weekly average5.723 lb/d≤ 4.3 lb/d33%
May 2026Nitrogen, ammonia total [as N], daily maximum1.35 mg/L≤ .8 mg/L69%
May 2026Nitrogen, ammonia total [as N], monthly average.508 mg/L≤ .41 mg/L24%
July 2026Nitrogen, ammonia total [as N], daily maximum.911 mg/L≤ .8 mg/L14%
August 2026Chlorine, total residual, daily maximum.08 mg/L≤ .02 mg/L300%
August 2026Nitrogen, ammonia total [as N], daily maximum11.3 mg/L≤ .8 mg/L1313%
August 2026Nitrogen, ammonia total [as N], monthly average12.878 lb/d≤ 1.4 lb/d820%
August 2026Nitrogen, ammonia total [as N], monthly average4.757 mg/L≤ .41 mg/L1060%
August 2026Nitrogen, ammonia total [as N], weekly average10.183 lb/d≤ 2.1 lb/d385%
August 2026Nitrogen, ammonia total [as N], weekly average6.086 mg/L≤ .62 mg/L882%
September 2026Nitrogen, ammonia total [as N], daily maximum7.88 mg/L≤ .8 mg/L885%
September 2026Nitrogen, ammonia total [as N], monthly average2.082 mg/L≤ .41 mg/L408%
September 2026Nitrogen, ammonia total [as N], monthly average4.831 lb/d≤ 1.4 lb/d245%
September 2026Nitrogen, ammonia total [as N], weekly average2.082 mg/L≤ .62 mg/L236%
September 2026Nitrogen, ammonia total [as N], weekly average4.83 lb/d≤ 2.1 lb/d130%

Limits in force (46)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]instantaneous minimum≥ 6 mg/Lall 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≤ 101 lb/dall year001
Solids, total suspendedweekly average≤ 135 lb/dall year001
Solids, settleabledaily maximum≤ 1 mL/Lall year001
Nitrogen, total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, total [as N]rolling averagereport only (lb/yr)all year001
Nitrogen, ammonia total [as N]monthly average≤ .78 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]weekly average≤ 1.17 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 1.56 mg/LJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 2.6 lb/dJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]weekly average≤ 4.3 lb/dJan, Feb, Mar, Apr, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ .41 mg/LMay–Nov001
Nitrogen, ammonia total [as N]weekly average≤ .62 mg/LMay–Nov001
Nitrogen, ammonia total [as N]daily maximum≤ .8 mg/LMay–Nov001
Nitrogen, ammonia total [as N]monthly average≤ 1.4 lb/dMay–Nov001
Nitrogen, ammonia total [as N]weekly average≤ 2.1 lb/dMay–Nov001
Phosphorus, total [as P]monthly averagereport only (mg/L)all year001
Phosphorus, total [as P]rolling average≤ 6529 lb/yrall 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≤ .011 mg/Lall year001
Chlorine, total residualdaily maximum≤ .02 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≤ 10 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 15 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 20 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 34 lb/dall year001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 51 lb/dall year001
BOD, carbonaceous, percent removaldaily minimum≥ 40 %all year001
BOD, carbonaceous, percent removalminimum average≥ 85 %all year001
Solids, suspended percent removaldaily minimum≥ 40 %all year001
Solids, suspended percent removalminimum average≥ 85 %all year001
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.

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Your permit document is the final word. As JSON: /api/v1/permits/TN0024988 · MCP: https://passage-data.com/mcp