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South Fork Ranch Municipal Utility District

Sewerage Systems, Hutto, Texas. NPDES permit TX0141321, in force until Jul 29, 2027. Last 12 months: over a limit 23 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: form A monthly (21 values)
Renewal application due
Jan 30, 2027 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 2 reports late

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

All 23 values over a limit
Period endingParameterReportedLimitOver by
November 2025Phosphorus, total [as P], daily average.668 mg/L≤ .5 mg/L34%
January 2026BOD, carbonaceous [5 day, 20 C], daily average12 mg/L≤ 7 mg/L71%
January 2026Nitrogen, ammonia total [as N], daily average19.2 mg/L≤ 2 mg/L860%
January 2026Nitrogen, ammonia total [as N], daily average5.58 lb/d≤ 3.3 lb/d69%
January 2026Nitrogen, ammonia total [as N], single grab sample37.9 mg/L≤ 15 mg/L153%
January 2026Phosphorus, total [as P], daily average2.15 mg/L≤ .5 mg/L330%
January 2026Phosphorus, total [as P], single grab sample4.16 mg/L≤ 3 mg/L39%
January 2026Solids, total suspended, daily average47.2 mg/L≤ 12 mg/L293%
January 2026Solids, total suspended, single grab sample95 mg/L≤ 60 mg/L58%
February 2026Nitrogen, ammonia total [as N], daily average< 12.3 mg/L≤ 2 mg/L515%
February 2026Nitrogen, ammonia total [as N], single grab sample28.1 mg/L≤ 15 mg/L87%
March 2026Nitrogen, ammonia total [as N], daily average3.48 lb/d≤ 3.3 lb/d5%
March 2026Nitrogen, ammonia total [as N], daily average8.32 mg/L≤ 2 mg/L316%
March 2026Nitrogen, ammonia total [as N], single grab sample18.8 mg/L≤ 15 mg/L25%
March 2026Phosphorus, total [as P], daily average.588 mg/L≤ .5 mg/L18%
March 2026Solids, total suspended, daily average16.2 mg/L≤ 12 mg/L35%
April 2026Nitrogen, ammonia total [as N], daily average2.84 mg/L≤ 2 mg/L42%
May 2026Solids, total suspended, daily average24.2 mg/L≤ 12 mg/L102%
May 2026Solids, total suspended, single grab sample80 mg/L≤ 60 mg/L33%
May 2026pH, minimum4.6 SU≥ 6 SU—
June 2026Solids, total suspended, daily average13.8 mg/L≤ 12 mg/L15%
August 2026Solids, total suspended, daily average19 mg/L≤ 15 mg/L27%
August 2026pH, maximum10 SU≤ 9 SU—

Limits in force (21)

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≤ 25 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≤ 3.3 lb/dall year
Phosphorus, total [as P]daily average≤ .5 mg/Lall year
Phosphorus, total [as P]single grab sample≤ 3 mg/Lall year
Phosphorus, total [as P]daily average≤ .83 lb/dall year
Flow, in conduit or thru treatment plantdaily average≤ .2 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≤ 17 lb/dall year

How strict are these limits?

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

Check this month's numbers Email me before each report is due

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/TX0141321 · MCP: https://passage-data.com/mcp