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Tenaha, City of

Sewage treatment plant, Tenaha, Texas. NPDES permit TX0069086, in force until May 24, 2029. Last 12 months: over a limit 73 times (last August 2026), 64 required values missing, 6 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: form A monthly (16 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
55 values over a limit, 160 required values missing, 12 of 12 reports late

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

All 73 values over a limit
Period endingParameterReportedLimitOver by
October 2025BOD, carbonaceous [5 day, 20 C], daily average15.1 mg/L≤ 10 mg/L51%
October 2025BOD, carbonaceous [5 day, 20 C], daily average15.1 mg/L≤ 10 mg/L51%
October 2025Nitrogen, ammonia total [as N], daily average5.96 mg/L≤ 2 mg/L198%
October 2025Nitrogen, ammonia total [as N], daily average5.96 mg/L≤ 2 mg/L198%
October 2025Oxygen, dissolved [DO], monthly minimum3.2 mg/L≥ 5 mg/L36%
October 2025Oxygen, dissolved [DO], monthly minimum3.2 mg/L≥ 5 mg/L36%
October 2025Solids, total suspended, daily average31.2 mg/L≤ 15 mg/L108%
October 2025Solids, total suspended, daily average31.2 mg/L≤ 15 mg/L108%
November 2025BOD, carbonaceous [5 day, 20 C], daily average24.5 mg/L≤ 10 mg/L145%
November 2025BOD, carbonaceous [5 day, 20 C], daily average24.5 mg/L≤ 10 mg/L145%
November 2025Oxygen, dissolved [DO], monthly minimum3.6 mg/L≥ 5 mg/L28%
November 2025Oxygen, dissolved [DO], monthly minimum3.6 mg/L≥ 5 mg/L28%
November 2025Solids, total suspended, daily average25.8 lb/d≤ 24 lb/d7%
November 2025Solids, total suspended, daily average25.8 lb/d≤ 24 lb/d7%
November 2025Solids, total suspended, daily average52.2 mg/L≤ 15 mg/L248%
November 2025Solids, total suspended, daily average52.2 mg/L≤ 15 mg/L248%
December 2025BOD, carbonaceous [5 day, 20 C], daily average25.2 mg/L≤ 10 mg/L152%
December 2025BOD, carbonaceous [5 day, 20 C], daily average25.2 mg/L≤ 10 mg/L152%
December 2025BOD, carbonaceous [5 day, 20 C], single grab sample38 mg/L≤ 35 mg/L9%
December 2025BOD, carbonaceous [5 day, 20 C], single grab sample38 mg/L≤ 35 mg/L9%
December 2025Nitrogen, ammonia total [as N], daily average2.9 mg/L≤ 2 mg/L45%
December 2025Nitrogen, ammonia total [as N], daily average2.9 mg/L≤ 2 mg/L45%
December 2025Oxygen, dissolved [DO], monthly minimum4.1 mg/L≥ 5 mg/L18%
December 2025Oxygen, dissolved [DO], monthly minimum4.1 mg/L≥ 5 mg/L18%
December 2025Solids, total suspended, daily average43.2 mg/L≤ 15 mg/L188%
December 2025Solids, total suspended, daily average43.2 mg/L≤ 15 mg/L188%
January 2026BOD, carbonaceous [5 day, 20 C], daily average20.5 lb/d≤ 16 lb/d28%
January 2026BOD, carbonaceous [5 day, 20 C], daily average46.8 mg/L≤ 10 mg/L368%
January 2026BOD, carbonaceous [5 day, 20 C], single grab sample92 mg/L≤ 35 mg/L163%
January 2026Nitrogen, ammonia total [as N], daily average3.49 lb/d≤ 3.2 lb/d9%
January 2026Nitrogen, ammonia total [as N], daily average6.6 mg/L≤ 2 mg/L230%
January 2026Oxygen, dissolved [DO], monthly minimum3.3 mg/L≥ 5 mg/L34%
January 2026Solids, total suspended, daily average27 lb/d≤ 24 lb/d12%
January 2026Solids, total suspended, daily average55.2 mg/L≤ 15 mg/L268%
January 2026Solids, total suspended, single grab sample71 mg/L≤ 60 mg/L18%
February 2026BOD, carbonaceous [5 day, 20 C], daily average40.3 lb/d≤ 16 lb/d152%
February 2026BOD, carbonaceous [5 day, 20 C], daily average99.2 mg/L≤ 10 mg/L892%
February 2026BOD, carbonaceous [5 day, 20 C], single grab sample121 mg/L≤ 35 mg/L246%
February 2026Nitrogen, ammonia total [as N], daily average4.37 lb/d≤ 3.2 lb/d37%
February 2026Nitrogen, ammonia total [as N], daily average9.97 mg/L≤ 2 mg/L399%
February 2026Nitrogen, ammonia total [as N], single grab sample28 mg/L≤ 15 mg/L87%
February 2026Oxygen, dissolved [DO], monthly minimum2.3 mg/L≥ 5 mg/L54%
February 2026Solids, total suspended, daily average40.7 mg/L≤ 15 mg/L171%
March 2026BOD, carbonaceous [5 day, 20 C], daily average39 mg/L≤ 10 mg/L290%
March 2026BOD, carbonaceous [5 day, 20 C], single grab sample73 mg/L≤ 35 mg/L109%
March 2026Nitrogen, ammonia total [as N], daily average16.9 mg/L≤ 2 mg/L745%
March 2026Nitrogen, ammonia total [as N], daily average7.13 lb/d≤ 3.2 lb/d123%
March 2026Nitrogen, ammonia total [as N], single grab sample36.2 mg/L≤ 15 mg/L141%
March 2026Oxygen, dissolved [DO], monthly minimum.3 mg/L≥ 5 mg/L94%
March 2026Solids, total suspended, daily average34.6 lb/d≤ 24 lb/d44%
March 2026Solids, total suspended, daily average70 mg/L≤ 15 mg/L367%
March 2026Solids, total suspended, single grab sample90 mg/L≤ 60 mg/L50%
April 2026BOD, carbonaceous [5 day, 20 C], daily average34.2 mg/L≤ 10 mg/L242%
April 2026BOD, carbonaceous [5 day, 20 C], single grab sample48 mg/L≤ 35 mg/L37%
April 2026Nitrogen, ammonia total [as N], daily average2.84 mg/L≤ 2 mg/L42%
April 2026Oxygen, dissolved [DO], monthly minimum3.8 mg/L≥ 5 mg/L24%
April 2026Solids, total suspended, daily average55.9 mg/L≤ 15 mg/L273%
April 2026Solids, total suspended, single grab sample65 mg/L≤ 60 mg/L8%
May 2026BOD, carbonaceous [5 day, 20 C], daily average21.2 mg/L≤ 10 mg/L112%
May 2026Oxygen, dissolved [DO], monthly minimum4 mg/L≥ 5 mg/L20%
May 2026Solids, total suspended, daily average32 mg/L≤ 15 mg/L113%
June 2026BOD, carbonaceous [5 day, 20 C], daily average11.2 mg/L≤ 10 mg/L12%
June 2026BOD, carbonaceous [5 day, 20 C], daily average11.2 mg/L≤ 10 mg/L12%
June 2026Oxygen, dissolved [DO], monthly minimum3.3 mg/L≥ 5 mg/L34%
June 2026Oxygen, dissolved [DO], monthly minimum3.3 mg/L≥ 5 mg/L34%
June 2026Solids, total suspended, daily average17.5 mg/L≤ 15 mg/L17%
June 2026Solids, total suspended, daily average17.5 mg/L≤ 15 mg/L17%
July 2026BOD, carbonaceous [5 day, 20 C], daily average10.9 mg/L≤ 10 mg/L9%
July 2026Oxygen, dissolved [DO], monthly minimum3.5 mg/L≥ 5 mg/L30%
July 2026Solids, total suspended, daily average15.8 mg/L≤ 15 mg/L5%
August 2026BOD, carbonaceous [5 day, 20 C], daily average14.8 mg/L≤ 10 mg/L48%
August 2026Oxygen, dissolved [DO], monthly minimum2.8 mg/L≥ 5 mg/L44%
August 2026Solids, total suspended, daily average17.6 mg/L≤ 15 mg/L17%

Limits in force (16)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]monthly minimum≥ 5 mg/Lall year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendeddaily average≤ 15 mg/Lall year
Solids, total suspendedsingle grab sample≤ 60 mg/Lall year
Solids, total suspendeddaily average≤ 24 lb/dall year
Nitrogen, ammonia total [as N]daily average≤ 2 mg/Lall year
Nitrogen, ammonia total [as N]single grab sample≤ 15 mg/Lall year
Nitrogen, ammonia total [as N]daily average≤ 3.2 lb/dall year
Flow, in conduit or thru treatment plantdaily average≤ .19 MGDall year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
E. colidaily average≤ 126 CFU/100mLall year
E. colisingle grab sample≤ 399 CFU/100mLall year
BOD, carbonaceous [5 day, 20 C]daily average≤ 10 mg/Lall year
BOD, carbonaceous [5 day, 20 C]single grab sample≤ 35 mg/Lall year
BOD, carbonaceous [5 day, 20 C]daily average≤ 16 lb/dall year

How strict are these limits?

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

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