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Buffalo, City of

Sewage treatment plant, Buffalo, Texas. NPDES permit TX0053627, in force until Jan 3, 2027. Last 12 months: over a limit 49 times (last September 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: form A monthly (18 values)
Renewal application due
Jul 7, 2026 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
105 values over a limit, 0 required values missing, 1 of 12 reports late

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

All 49 values over a limit
Period endingParameterReportedLimitOver by
October 2025BOD, carbonaceous [5 day, 20 C], daily average197 mg/L≤ 10 mg/L1870%
October 2025BOD, carbonaceous [5 day, 20 C], daily average329 lb/d≤ 27 lb/d1119%
October 2025BOD, carbonaceous [5 day, 20 C], single grab sample257 mg/L≤ 35 mg/L634%
October 2025Chlorine, total residual, monthly minimum.72 mg/L≥ 1 mg/L28%
October 2025E. coli, daily average> 9398 CFU/100mL≤ 126 CFU/100mL—
October 2025E. coli, single grab sample> 242000 CFU/100mL≤ 399 CFU/100mL—
October 2025Nitrogen, ammonia total [as N], daily average22.3 mg/L≤ 3 mg/L643%
October 2025Nitrogen, ammonia total [as N], daily average33 lb/d≤ 8 lb/d313%
October 2025Nitrogen, ammonia total [as N], single grab sample24.2 mg/L≤ 15 mg/L61%
October 2025Solids, total suspended, daily average145.7 lb/d≤ 40 lb/d264%
October 2025Solids, total suspended, daily average86 mg/L≤ 15 mg/L473%
October 2025Solids, total suspended, single grab sample204 mg/L≤ 60 mg/L240%
November 2025BOD, carbonaceous [5 day, 20 C], daily average217 mg/L≤ 10 mg/L2070%
November 2025BOD, carbonaceous [5 day, 20 C], daily average312 lb/d≤ 27 lb/d1056%
November 2025BOD, carbonaceous [5 day, 20 C], single grab sample240 mg/L≤ 35 mg/L586%
November 2025Nitrogen, ammonia total [as N], daily average17.3 mg/L≤ 3 mg/L477%
November 2025Nitrogen, ammonia total [as N], daily average25.2 lb/d≤ 8 lb/d215%
November 2025Nitrogen, ammonia total [as N], single grab sample27.6 mg/L≤ 15 mg/L84%
November 2025Oxygen, dissolved [DO], monthly minimum3.9 mg/L≥ 4 mg/L3%
November 2025Solids, total suspended, daily average109 lb/d≤ 40 lb/d173%
November 2025Solids, total suspended, daily average76.8 mg/L≤ 15 mg/L412%
November 2025Solids, total suspended, single grab sample104 mg/L≤ 60 mg/L73%
December 2025BOD, carbonaceous [5 day, 20 C], daily average138.8 mg/L≤ 10 mg/L1288%
December 2025BOD, carbonaceous [5 day, 20 C], daily average143.7 lb/d≤ 27 lb/d432%
December 2025BOD, carbonaceous [5 day, 20 C], single grab sample286 mg/L≤ 35 mg/L717%
December 2025E. coli, single grab sample4350000 CFU/100mL≤ 399 CFU/100mL—
December 2025Nitrogen, ammonia total [as N], daily average14.73 lb/d≤ 8 lb/d84%
December 2025Nitrogen, ammonia total [as N], daily average15.39 mg/L≤ 3 mg/L413%
December 2025Nitrogen, ammonia total [as N], single grab sample31.9 mg/L≤ 15 mg/L113%
December 2025Solids, total suspended, daily average101.2 mg/L≤ 15 mg/L575%
December 2025Solids, total suspended, daily average101.3 lb/d≤ 40 lb/d153%
December 2025Solids, total suspended, single grab sample220 mg/L≤ 60 mg/L267%
January 2026BOD, carbonaceous [5 day, 20 C], daily average21.3 mg/L≤ 10 mg/L113%
January 2026Nitrogen, ammonia total [as N], daily average6.11 mg/L≤ 3 mg/L104%
January 2026Solids, total suspended, daily average54.8 mg/L≤ 15 mg/L265%
January 2026Solids, total suspended, daily average70.8 lb/d≤ 40 lb/d77%
January 2026Solids, total suspended, single grab sample120 mg/L≤ 60 mg/L100%
February 2026BOD, carbonaceous [5 day, 20 C], daily average10.5 mg/L≤ 10 mg/L5%
February 2026Nitrogen, ammonia total [as N], daily average6.19 mg/L≤ 3 mg/L106%
March 2026Solids, total suspended, daily average18.3 mg/L≤ 15 mg/L22%
April 2026Nitrogen, ammonia total [as N], daily average3.54 mg/L≤ 3 mg/L18%
May 2026Chlorine, total residual, monthly minimum.86 mg/L≥ 1 mg/L14%
May 2026Nitrogen, ammonia total [as N], daily average7.01 mg/L≤ 3 mg/L134%
May 2026Nitrogen, ammonia total [as N], daily average9.9 lb/d≤ 8 lb/d24%
May 2026Nitrogen, ammonia total [as N], single grab sample17.6 mg/L≤ 15 mg/L17%
May 2026Solids, total suspended, daily average25.8 mg/L≤ 15 mg/L72%
May 2026Solids, total suspended, daily average54.3 lb/d≤ 40 lb/d36%
May 2026Solids, total suspended, single grab sample73 mg/L≤ 60 mg/L22%
September 2026Nitrogen, ammonia total [as N], daily average3.99 mg/L≤ 3 mg/L33%

Limits in force (18)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]monthly minimum≥ 4 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≤ 40 lb/dall year
Nitrogen, ammonia total [as N]daily average≤ 3 mg/Lall year
Nitrogen, ammonia total [as N]single grab sample≤ 15 mg/Lall year
Nitrogen, ammonia total [as N]daily average≤ 8 lb/dall year
Flow, in conduit or thru treatment plantdaily average≤ .322 MGDall year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Chlorine, total residualmonthly minimum≥ 1 mg/Lall year
Chlorine, total residualmonthly maximum≤ 4 mg/Lall 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≤ 27 lb/dall year

How strict are these limits?

Cited limits by parameter: Texas'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/TX0053627 · MCP: https://passage-data.com/mcp