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Thomas, City of

Sewage treatment plant, Thomas, West Virginia. NPDES permit WV0024856, in force until Apr 14, 2031. Last 12 months: over a limit 30 times (last August 2026), 3 of 15 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 25 days after each period: form A monthly (27 values), form B quarterly, form D yearly
Last report on file
August 2026
Oct 2024 – Sep 2025
28 values over a limit, 0 required values missing, 4 of 17 reports late

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

All 30 values over a limit
Period endingParameterReportedLimitOver by
October 2025Copper, total recoverable, daily maximum.044 mg/L≤ .0132 mg/L233%
October 2025Nitrogen, ammonia total [as N], daily maximum13.4 lb/d≤ 9.3 lb/d44%
October 2025Nitrogen, ammonia total [as N], daily maximum13.4 mg/L≤ 7.4 mg/L81%
October 2025Nitrogen, ammonia total [as N], monthly average7.88 mg/L≤ 3.7 mg/L113%
October 2025Oxygen, dissolved [DO], instantaneous minimum4.4 mg/L≥ 6 mg/L27%
November 2025BOD, 5-day, 20 deg. C, monthly average53.15 mg/L≤ 30 mg/L77%
November 2025Nitrogen, ammonia total [as N], daily maximum14 mg/L≤ 12.6 mg/L11%
November 2025Nitrogen, ammonia total [as N], monthly average12.175 mg/L≤ 6.3 mg/L93%
November 2025Solids, total suspended, monthly average30.25 mg/L≤ 30 mg/L1%
December 2025Nitrogen, ammonia total [as N], daily maximum16.6 mg/L≤ 12.6 mg/L32%
December 2025Nitrogen, ammonia total [as N], monthly average12.78 mg/L≤ 6.3 mg/L103%
January 2026Nitrogen, ammonia total [as N], monthly average9.75 mg/L≤ 6.3 mg/L55%
February 2026Nitrogen, ammonia total [as N], daily maximum16.8 mg/L≤ 12.6 mg/L33%
February 2026Nitrogen, ammonia total [as N], monthly average12.15 mg/L≤ 6.3 mg/L93%
March 2026Nitrogen, ammonia total [as N], daily maximum16.5 mg/L≤ 12.6 mg/L31%
March 2026Nitrogen, ammonia total [as N], monthly average10.375 mg/L≤ 6.3 mg/L65%
April 2026Nitrogen, ammonia total [as N], daily maximum17.1 mg/L≤ 12.6 mg/L36%
April 2026Nitrogen, ammonia total [as N], monthly average12.6 mg/L≤ 6.3 mg/L100%
April 2026Oxygen, dissolved [DO], instantaneous minimum4.3 mg/L≥ 6 mg/L28%
May 2026BOD, 5-day, 20 deg. C, monthly average33.5 mg/L≤ 22 mg/L52%
May 2026Oxygen, dissolved [DO], instantaneous minimum2.8 mg/L≥ 6 mg/L53%
June 2026BOD, 5-day, 20 deg. C, monthly average26.15 mg/L≤ 22 mg/L19%
June 2026Nitrogen, ammonia total [as N], daily maximum14 mg/L≤ 7.4 mg/L89%
June 2026Nitrogen, ammonia total [as N], monthly average8.75 mg/L≤ 3.7 mg/L136%
June 2026Oxygen, dissolved [DO], instantaneous minimum4.7 mg/L≥ 6 mg/L22%
July 2026BOD, 5-day, 20 deg. C, monthly average28.35 mg/L≤ 22 mg/L29%
July 2026Oxygen, dissolved [DO], instantaneous minimum2.3 mg/L≥ 6 mg/L62%
August 2026Nitrogen, ammonia total [as N], daily maximum10.1 mg/L≤ 7.4 mg/L36%
August 2026Nitrogen, ammonia total [as N], monthly average4.8 mg/L≤ 3.7 mg/L30%
August 2026Oxygen, dissolved [DO], instantaneous minimum3.2 mg/L≥ 6 mg/L47%

Limits in force (43)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]instantaneous minimum≥ 6 mg/Lall year
Oxygen, dissolved [DO]monthly averagereport only (mg/L)all year
Oxygen, dissolved [DO]daily maximumreport only (mg/L)all year
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/LJan, Feb, Mar, Apr, Nov, Dec
BOD, 5-day, 20 deg. Cmonthly average≤ 22 mg/LMay–Oct
BOD, 5-day, 20 deg. Cdaily maximum≤ 60 mg/LJan, Feb, Mar, Apr, Nov, Dec
BOD, 5-day, 20 deg. Cdaily maximum≤ 44 mg/LMay–Oct
BOD, 5-day, 20 deg. Cmonthly average≤ 37.5 lb/dJan, Feb, Mar, Apr, Nov, Dec
BOD, 5-day, 20 deg. Cmonthly average≤ 27.5 lb/dMay–Oct
BOD, 5-day, 20 deg. Cdaily maximum≤ 75 lb/dJan, Feb, Mar, Apr, Nov, Dec
BOD, 5-day, 20 deg. Cdaily maximum≤ 55 lb/dMay–Oct
pHinstantaneous minimum≥ 6 SUall year
pHinstantaneous maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendeddaily maximum≤ 60 mg/Lall year
Solids, total suspendedmonthly average≤ 37.5 lb/dall year
Solids, total suspendeddaily maximum≤ 75 lb/dall year
Nitrogen, ammonia total [as N]monthly average≤ 3.7 mg/LMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 6.3 mg/LJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]daily maximum≤ 7.4 mg/LMay–Oct
Nitrogen, ammonia total [as N]daily maximum≤ 12.6 mg/LJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 4.6 lb/dMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 7.9 lb/dJan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]daily maximum≤ 9.3 lb/dMay–Oct
Nitrogen, ammonia total [as N]daily maximum≤ 15.8 lb/dJan, Feb, Mar, Apr, Nov, Dec
Hardness, total [as CaCO3]monthly averagereport only (mg/L)all year
Hardness, total [as CaCO3]monthly averagereport only (mg/L)all year
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year
Zinc, total recoverablemonthly averagereport only (mg/L)all year
Zinc, total recoverabledaily maximumreport only (mg/L)all year
Lead, total recoverablemonthly averagereport only (mg/L)all year
Lead, total recoverabledaily maximumreport only (mg/L)all year
Copper, total recoverablemonthly average≤ .007 mg/Lall year
Copper, total recoverabledaily maximum≤ .01 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 residualmonthly average≤ .012 mg/Lall year
Chlorine, total residualdaily maximum≤ .025 mg/Lall year
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year
Coliform, fecal generaldaily maximum≤ 400 #/100mLall year
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year
Solids, suspended percent removalmonthly average minimum≥ 85 %all year

How strict are these limits?

Cited limits by parameter: West Virginia's rules and the federal ones.

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On EPA ECHO: Facility report · DMR history

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