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Hawk Cove, City of

Sewage treatment plant, Quinlan, Texas. NPDES permit TX0141691, in force until Jun 12, 2028. Last 12 months: over a limit 106 times (last September 2026), 6 of 12 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: form A monthly (18 values)
Renewal application due
Dec 15, 2027 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
152 values over a limit, 90 required values missing, 8 of 12 reports late

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

All 106 values over a limit
Period endingParameterReportedLimitOver by
October 2025BOD, carbonaceous [5 day, 20 C], daily average59.9 mg/L≤ 10 mg/L499%
October 2025BOD, carbonaceous [5 day, 20 C], single grab sample90.4 mg/L≤ 35 mg/L158%
October 2025E. coli, daily average2420 CFU/100mL≤ 126 CFU/100mL1821%
October 2025E. coli, single grab sample2420 CFU/100mL≤ 399 CFU/100mL507%
October 2025Nitrogen, ammonia total [as N], daily average50.48 mg/L≤ 3 mg/L1583%
October 2025Nitrogen, ammonia total [as N], daily average7.2 lb/d≤ 5 lb/d44%
October 2025Nitrogen, ammonia total [as N], single grab sample54.9 mg/L≤ 15 mg/L266%
October 2025Oxygen, dissolved [DO], monthly minimum1.2 mg/L≥ 4 mg/L70%
October 2025Solids, total suspended, daily average47.3 mg/L≤ 15 mg/L215%
November 2025BOD, carbonaceous [5 day, 20 C], daily average98.9 mg/L≤ 10 mg/L889%
November 2025BOD, carbonaceous [5 day, 20 C], single grab sample128 mg/L≤ 35 mg/L266%
November 2025E. coli, daily average2420 CFU/100mL≤ 126 CFU/100mL1821%
November 2025E. coli, single grab sample2420 CFU/100mL≤ 399 CFU/100mL507%
November 2025Nitrogen, ammonia total [as N], daily average10.8 lb/d≤ 5 lb/d116%
November 2025Nitrogen, ammonia total [as N], daily average63.9 mg/L≤ 3 mg/L2030%
November 2025Nitrogen, ammonia total [as N], single grab sample83.8 mg/L≤ 15 mg/L459%
November 2025Oxygen, dissolved [DO], monthly minimum1.6 mg/L≥ 4 mg/L60%
November 2025Solids, total suspended, daily average74.5 mg/L≤ 15 mg/L397%
November 2025Solids, total suspended, single grab sample100 mg/L≤ 60 mg/L67%
December 2025BOD, carbonaceous [5 day, 20 C], daily average125.8 mg/L≤ 10 mg/L1158%
December 2025BOD, carbonaceous [5 day, 20 C], daily average17.9 lb/d≤ 17 lb/d5%
December 2025BOD, carbonaceous [5 day, 20 C], single grab sample144 mg/L≤ 35 mg/L311%
December 2025E. coli, daily average2420 CFU/100mL≤ 126 CFU/100mL1821%
December 2025E. coli, single grab sample2420 CFU/100mL≤ 399 CFU/100mL507%
December 2025Nitrogen, ammonia total [as N], daily average55.14 mg/L≤ 3 mg/L1738%
December 2025Nitrogen, ammonia total [as N], daily average7.82 lb/d≤ 5 lb/d56%
December 2025Nitrogen, ammonia total [as N], single grab sample62.6 mg/L≤ 15 mg/L317%
December 2025Oxygen, dissolved [DO], monthly minimum.2 mg/L≥ 4 mg/L95%
December 2025Solids, total suspended, daily average90.4 mg/L≤ 15 mg/L503%
December 2025Solids, total suspended, single grab sample102 mg/L≤ 60 mg/L70%
January 2026BOD, carbonaceous [5 day, 20 C], daily average108.1 mg/L≤ 10 mg/L981%
January 2026BOD, carbonaceous [5 day, 20 C], single grab sample154 mg/L≤ 35 mg/L340%
January 2026E. coli, daily average2420 CFU/100mL≤ 126 CFU/100mL1821%
January 2026E. coli, single grab sample2420 CFU/100mL≤ 399 CFU/100mL507%
January 2026Nitrogen, ammonia total [as N], daily average52 mg/L≤ 3 mg/L1633%
January 2026Nitrogen, ammonia total [as N], single grab sample63 mg/L≤ 15 mg/L320%
January 2026Oxygen, dissolved [DO], monthly minimum.34 mg/L≥ 4 mg/L92%
January 2026Solids, total suspended, daily average79.8 mg/L≤ 15 mg/L432%
January 2026Solids, total suspended, single grab sample102 mg/L≤ 60 mg/L70%
February 2026BOD, carbonaceous [5 day, 20 C], daily average135.2 mg/L≤ 10 mg/L1252%
February 2026BOD, carbonaceous [5 day, 20 C], single grab sample148 mg/L≤ 35 mg/L323%
February 2026E. coli, daily average2420 CFU/100mL≤ 126 CFU/100mL1821%
February 2026E. coli, single grab sample2420 CFU/100mL≤ 399 CFU/100mL507%
February 2026Nitrogen, ammonia total [as N], daily average48.82 mg/L≤ 3 mg/L1527%
February 2026Nitrogen, ammonia total [as N], daily average5.64 lb/d≤ 5 lb/d13%
February 2026Nitrogen, ammonia total [as N], single grab sample54.9 mg/L≤ 15 mg/L266%
February 2026Oxygen, dissolved [DO], monthly minimum.4 mg/L≥ 4 mg/L90%
February 2026Solids, total suspended, daily average110.6 mg/L≤ 15 mg/L637%
February 2026Solids, total suspended, single grab sample133 mg/L≤ 60 mg/L122%
March 2026BOD, carbonaceous [5 day, 20 C], daily average156 mg/L≤ 10 mg/L1460%
March 2026BOD, carbonaceous [5 day, 20 C], daily average26.1 lb/d≤ 17 lb/d54%
March 2026BOD, carbonaceous [5 day, 20 C], single grab sample186 mg/L≤ 35 mg/L431%
March 2026E. coli, daily average2420 CFU/100mL≤ 126 CFU/100mL1821%
March 2026E. coli, single grab sample2420 CFU/100mL≤ 399 CFU/100mL507%
March 2026Nitrogen, ammonia total [as N], daily average53.4 mg/L≤ 3 mg/L1680%
March 2026Nitrogen, ammonia total [as N], daily average9.05 lb/d≤ 5 lb/d81%
March 2026Nitrogen, ammonia total [as N], single grab sample63.8 mg/L≤ 15 mg/L325%
March 2026Oxygen, dissolved [DO], monthly minimum.4 mg/L≥ 4 mg/L90%
March 2026Solids, total suspended, daily average105.5 mg/L≤ 15 mg/L603%
March 2026Solids, total suspended, single grab sample134 mg/L≤ 60 mg/L123%
April 2026BOD, carbonaceous [5 day, 20 C], daily average177 mg/L≤ 10 mg/L1670%
April 2026BOD, carbonaceous [5 day, 20 C], daily average29.4 lb/d≤ 17 lb/d73%
April 2026BOD, carbonaceous [5 day, 20 C], single grab sample193 mg/L≤ 35 mg/L451%
April 2026E. coli, daily average2420 CFU/100mL≤ 126 CFU/100mL1821%
April 2026E. coli, single grab sample2420 CFU/100mL≤ 399 CFU/100mL507%
April 2026Nitrogen, ammonia total [as N], daily average10.3 lb/d≤ 5 lb/d106%
April 2026Nitrogen, ammonia total [as N], daily average61.4 mg/L≤ 3 mg/L1947%
April 2026Nitrogen, ammonia total [as N], single grab sample67.6 mg/L≤ 15 mg/L351%
April 2026Solids, total suspended, daily average137.6 mg/L≤ 15 mg/L817%
April 2026Solids, total suspended, single grab sample174 mg/L≤ 60 mg/L190%
May 2026BOD, carbonaceous [5 day, 20 C], daily average187.2 mg/L≤ 10 mg/L1772%
May 2026BOD, carbonaceous [5 day, 20 C], daily average39 lb/d≤ 17 lb/d129%
May 2026BOD, carbonaceous [5 day, 20 C], single grab sample205 mg/L≤ 35 mg/L486%
May 2026E. coli, daily average2420 CFU/100mL≤ 126 CFU/100mL1821%
May 2026E. coli, single grab sample2420 CFU/100mL≤ 399 CFU/100mL507%
May 2026Nitrogen, ammonia total [as N], daily average16.14 lb/d≤ 5 lb/d223%
May 2026Nitrogen, ammonia total [as N], daily average76.92 mg/L≤ 3 mg/L2464%
May 2026Nitrogen, ammonia total [as N], single grab sample103 mg/L≤ 15 mg/L587%
May 2026Solids, total suspended, daily average200.2 mg/L≤ 15 mg/L1235%
May 2026Solids, total suspended, daily average39.8 lb/d≤ 25 lb/d59%
May 2026Solids, total suspended, single grab sample288 mg/L≤ 60 mg/L380%
June 2026BOD, carbonaceous [5 day, 20 C], daily average134.5 mg/L≤ 10 mg/L1245%
June 2026BOD, carbonaceous [5 day, 20 C], single grab sample287 mg/L≤ 35 mg/L720%
June 2026E. coli, daily average2420 CFU/100mL≤ 126 CFU/100mL1821%
June 2026E. coli, single grab sample2420 CFU/100mL≤ 399 CFU/100mL507%
June 2026Nitrogen, ammonia total [as N], daily average39.64 mg/L≤ 3 mg/L1221%
June 2026Nitrogen, ammonia total [as N], single grab sample64.1 mg/L≤ 15 mg/L327%
June 2026Solids, total suspended, daily average145.6 mg/L≤ 15 mg/L871%
June 2026Solids, total suspended, single grab sample293 mg/L≤ 60 mg/L388%
July 2026BOD, carbonaceous [5 day, 20 C], daily average12.955 mg/L≤ 10 mg/L30%
July 2026E. coli, daily average> 2419.6 CFU/100mL≤ 126 CFU/100mL—
July 2026E. coli, single grab sample> 2419.6 CFU/100mL≤ 399 CFU/100mL—
July 2026Nitrogen, ammonia total [as N], daily average41.925 mg/L≤ 3 mg/L1298%
July 2026Nitrogen, ammonia total [as N], single grab sample51.8 mg/L≤ 15 mg/L245%
July 2026Oxygen, dissolved [DO], monthly minimum3.75 mg/L≥ 4 mg/L6%
July 2026Solids, total suspended, daily average18.275 mg/L≤ 15 mg/L22%
August 2026Chlorine, total residual, monthly minimum.22 mg/L≥ 1 mg/L78%
August 2026E. coli, daily average> 2419.6 CFU/100mL≤ 126 CFU/100mL—
August 2026E. coli, single grab sample> 2419.6 CFU/100mL≤ 399 CFU/100mL—
August 2026Nitrogen, ammonia total [as N], daily average10.473 mg/L≤ 3 mg/L249%
August 2026Nitrogen, ammonia total [as N], single grab sample33.5 mg/L≤ 15 mg/L123%
September 2026Chlorine, total residual, monthly maximum5.3 mg/L≤ 4 mg/L33%
September 2026Chlorine, total residual, monthly minimum.97 mg/L≥ 1 mg/L3%
September 2026Nitrogen, ammonia total [as N], daily average4.27 mg/L≤ 3 mg/L42%
September 2026Solids, total suspended, daily average25.96 mg/L≤ 15 mg/L73%
September 2026Solids, total suspended, single grab sample82.4 mg/L≤ 60 mg/L37%

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≤ 25 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≤ 5 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.

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Your permit document is the final word. As JSON: /api/v1/permits/TX0141691 · MCP: https://passage-data.com/mcp