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Edinburg, City of

Sewage treatment plant, major discharger, Edinburg, Texas. NPDES permit TX0024112 expired Sep 25, 2025; its limits still apply. Last 12 months: over a limit 83 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: outfall 001 form A monthly (18 values), outfall 001 form Q quarterly (6 values), outfall TX1 form Q quarterly (32 values), outfall TXA form S twice a year
Last report on file
August 2026
Oct 2024 – Sep 2025
103 values over a limit, 0 required values missing, 2 of 22 reports late

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

All 83 values over a limit
Period endingOutfallParameterReportedLimitOver by
October 2025001BOD, carbonaceous [5 day, 20 C], daily average1229 lb/d≤ 1026 lb/d20%
October 2025001BOD, carbonaceous [5 day, 20 C], daily average17.3 mg/L≤ 10 mg/L73%
October 2025001BOD, carbonaceous [5 day, 20 C], daily maximum51.4 mg/L≤ 25 mg/L106%
October 2025001Nitrogen, ammonia total [as N], daily average1464 lb/d≤ 205 lb/d614%
October 2025001Nitrogen, ammonia total [as N], daily average20.46 mg/L≤ 2 mg/L923%
October 2025001Nitrogen, ammonia total [as N], daily maximum46.75 mg/L≤ 10 mg/L368%
October 2025001Oxygen, dissolved [DO], monthly minimum1.23 mg/L≥ 6 mg/L80%
October 2025001Solids, total suspended, daily average1947 lb/d≤ 1539 lb/d27%
October 2025001Solids, total suspended, daily average27.4 mg/L≤ 15 mg/L83%
October 2025001Solids, total suspended, daily maximum56.5 mg/L≤ 40 mg/L41%
November 2025001BOD, carbonaceous [5 day, 20 C], daily average2657 lb/d≤ 1026 lb/d159%
November 2025001BOD, carbonaceous [5 day, 20 C], daily average35.9 mg/L≤ 10 mg/L259%
November 2025001BOD, carbonaceous [5 day, 20 C], daily maximum66.5 mg/L≤ 25 mg/L166%
November 2025001Nitrogen, ammonia total [as N], daily average2374 lb/d≤ 205 lb/d1058%
November 2025001Nitrogen, ammonia total [as N], daily average31.94 mg/L≤ 2 mg/L1497%
November 2025001Nitrogen, ammonia total [as N], daily maximum41.6 mg/L≤ 10 mg/L316%
November 2025001Oxygen, dissolved [DO], monthly minimum2.8 mg/L≥ 6 mg/L53%
November 2025001Solids, total suspended, daily average2736 lb/d≤ 1539 lb/d78%
November 2025001Solids, total suspended, daily average36.8 mg/L≤ 15 mg/L145%
November 2025001Solids, total suspended, daily maximum86.5 mg/L≤ 40 mg/L116%
December 2025001BOD, carbonaceous [5 day, 20 C], daily average1648 lb/d≤ 1026 lb/d61%
December 2025001BOD, carbonaceous [5 day, 20 C], daily average22.9 mg/L≤ 10 mg/L129%
December 2025001BOD, carbonaceous [5 day, 20 C], daily maximum60.1 mg/L≤ 25 mg/L140%
December 2025001Nitrogen, ammonia total [as N], daily average2518 lb/d≤ 205 lb/d1128%
December 2025001Nitrogen, ammonia total [as N], daily average35.2 mg/L≤ 2 mg/L1660%
December 2025001Nitrogen, ammonia total [as N], daily maximum46.5 mg/L≤ 10 mg/L365%
December 2025001Oxygen, dissolved [DO], monthly minimum3.07 mg/L≥ 6 mg/L49%
December 2025001Solids, total suspended, daily average2522 lb/d≤ 1539 lb/d64%
December 2025001Solids, total suspended, daily average35.3 mg/L≤ 15 mg/L135%
December 2025001Solids, total suspended, daily maximum76.5 mg/L≤ 40 mg/L91%
December 2025TX1Whole effluent toxicity, 7-day minimum15.7 %≥ 100 %84%
December 2025TX1Whole effluent toxicity, 7-day minimum15.7 %≥ 100 %84%
December 2025TX1Whole effluent toxicity, 7-day minimum15.7 %≥ 80 %80%
December 2025TX1Whole effluent toxicity, 7-day minimum15.7 %≥ 80 %80%
December 2025TX1Whole effluent toxicity, monthly average minimum15.7 %≥ 100 %84%
December 2025TX1Whole effluent toxicity, monthly average minimum15.7 %≥ 100 %84%
December 2025TX1Whole effluent toxicity, monthly average minimum15.7 %≥ 80 %80%
December 2025TX1Whole effluent toxicity, monthly average minimum15.7 %≥ 80 %80%
January 2026001BOD, carbonaceous [5 day, 20 C], daily average1445 lb/d≤ 1026 lb/d41%
January 2026001BOD, carbonaceous [5 day, 20 C], daily average20.3 mg/L≤ 10 mg/L103%
January 2026001BOD, carbonaceous [5 day, 20 C], daily maximum38.3 mg/L≤ 25 mg/L53%
January 2026001Nitrogen, ammonia total [as N], daily average1732 lb/d≤ 205 lb/d745%
January 2026001Nitrogen, ammonia total [as N], daily average24.42 mg/L≤ 2 mg/L1121%
January 2026001Nitrogen, ammonia total [as N], daily maximum38.85 mg/L≤ 10 mg/L289%
January 2026001Oxygen, dissolved [DO], monthly minimum3.96 mg/L≥ 6 mg/L34%
January 2026001Solids, total suspended, daily average1677 lb/d≤ 1539 lb/d9%
January 2026001Solids, total suspended, daily average42 mg/L≤ 15 mg/L180%
January 2026001Solids, total suspended, daily maximum123.6 mg/L≤ 40 mg/L209%
February 2026001BOD, carbonaceous [5 day, 20 C], daily average1570 lb/d≤ 1026 lb/d53%
February 2026001BOD, carbonaceous [5 day, 20 C], daily average21.5 mg/L≤ 10 mg/L115%
February 2026001BOD, carbonaceous [5 day, 20 C], daily maximum46.5 mg/L≤ 25 mg/L86%
February 2026001Nitrogen, ammonia total [as N], daily average1783 lb/d≤ 205 lb/d770%
February 2026001Nitrogen, ammonia total [as N], daily average24.22 mg/L≤ 2 mg/L1111%
February 2026001Nitrogen, ammonia total [as N], daily maximum40 mg/L≤ 10 mg/L300%
February 2026001Oxygen, dissolved [DO], monthly minimum1.67 mg/L≥ 6 mg/L72%
February 2026001Solids, total suspended, daily average2309 lb/d≤ 1539 lb/d50%
February 2026001Solids, total suspended, daily average31.2 mg/L≤ 15 mg/L108%
February 2026001Solids, total suspended, daily maximum62.5 mg/L≤ 40 mg/L56%
March 2026001BOD, carbonaceous [5 day, 20 C], daily average14.3 mg/L≤ 10 mg/L43%
March 2026001BOD, carbonaceous [5 day, 20 C], daily maximum35.1 mg/L≤ 25 mg/L40%
March 2026001Nitrogen, ammonia total [as N], daily average1914 lb/d≤ 205 lb/d834%
March 2026001Nitrogen, ammonia total [as N], daily average26.41 mg/L≤ 2 mg/L1221%
March 2026001Nitrogen, ammonia total [as N], daily maximum31.4 mg/L≤ 10 mg/L214%
March 2026001Oxygen, dissolved [DO], monthly minimum4.12 mg/L≥ 6 mg/L31%
March 2026001Solids, total suspended, daily average17 mg/L≤ 15 mg/L13%
April 2026001BOD, carbonaceous [5 day, 20 C], daily average12.1 mg/L≤ 10 mg/L21%
April 2026001BOD, carbonaceous [5 day, 20 C], daily maximum26.8 mg/L≤ 25 mg/L7%
April 2026001Nitrogen, ammonia total [as N], daily average1117 lb/d≤ 205 lb/d445%
April 2026001Nitrogen, ammonia total [as N], daily average14.16 mg/L≤ 2 mg/L608%
April 2026001Nitrogen, ammonia total [as N], daily maximum32 mg/L≤ 10 mg/L220%
April 2026001Oxygen, dissolved [DO], monthly minimum3.91 mg/L≥ 6 mg/L35%
April 2026001Solids, total suspended, daily average1575 lb/d≤ 1539 lb/d2%
April 2026001Solids, total suspended, daily average19.9 mg/L≤ 15 mg/L33%
April 2026001Solids, total suspended, daily maximum48 mg/L≤ 40 mg/L20%
May 2026001BOD, carbonaceous [5 day, 20 C], daily maximum33.5 mg/L≤ 25 mg/L34%
May 2026001Nitrogen, ammonia total [as N], daily average2.5 mg/L≤ 2 mg/L25%
May 2026001Nitrogen, ammonia total [as N], daily maximum11 mg/L≤ 10 mg/L10%
May 2026001Oxygen, dissolved [DO], monthly minimum4.37 mg/L≥ 6 mg/L27%
June 2026001Oxygen, dissolved [DO], monthly minimum4.5 mg/L≥ 6 mg/L25%
July 2026001E. coli, colony forming units [CFU], daily average173 CFU/100mL≤ 126 CFU/100mL37%
July 2026001Oxygen, dissolved [DO], monthly minimum4.64 mg/L≥ 6 mg/L23%
July 2026001Solids, total suspended, daily maximum46.5 mg/L≤ 40 mg/L16%
August 2026001Oxygen, dissolved [DO], monthly minimum5.08 mg/L≥ 6 mg/L15%

Limits in force (60)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]monthly minimum≥ 6 mg/Lall year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendeddaily average≤ 15 mg/Lall year001
Solids, total suspendeddaily maximum≤ 40 mg/Lall year001
Solids, total suspendeddaily average≤ 1539 lb/dall year001
Nitrogen, ammonia total [as N]daily average≤ 2 mg/Lall year001
Nitrogen, ammonia total [as N]daily maximum≤ 10 mg/Lall year001
Nitrogen, ammonia total [as N]daily average≤ 205 lb/dall year001
Cyanide, total [as CN]daily average≤ .012 mg/Lall year001
Cyanide, total [as CN]daily maximum≤ .026 mg/Lall year001
Cyanide, total [as CN]daily average≤ 1.2 lb/dall year001
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Flow, in conduit or thru treatment plant2-hour peak≤ 25625 gal/minall year001
Flow, in conduit or thru treatment plantannual average≤ 12.3 MGDall year001
E. coli, colony forming units [CFU]daily average≤ 126 CFU/100mLall year001
E. coli, colony forming units [CFU]daily maximum≤ 399 CFU/100mLall year001
Mercury, total [as Hg]daily average≤ .000168 mg/Lall year001
Mercury, total [as Hg]daily maximum≤ .000356 mg/Lall year001
Mercury, total [as Hg]daily average≤ .0172 lb/dall year001
BOD, carbonaceous [5 day, 20 C]daily average≤ 10 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 25 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]daily average≤ 1026 lb/dall year001
Whole effluent toxicity7-day minimum≥ 80 %all yearTX1
Whole effluent toxicitymonthly average minimum≥ 80 %all yearTX1
Whole effluent toxicity7-day minimum≥ 80 %all yearTX1
Whole effluent toxicitymonthly average minimum≥ 80 %all yearTX1
Whole effluent toxicity7-day minimum≥ 100 %all yearTX1
Whole effluent toxicitymonthly average minimum≥ 100 %all yearTX1
Whole effluent toxicity7-day minimum≥ 100 %all yearTX1
Whole effluent toxicitymonthly average minimum≥ 100 %all yearTX1
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia7-day minimumreport only (pass=0;fail=1)all yearTX1
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly average minimumreport only (pass=0;fail=1)all yearTX1
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas7-day minimumreport only (pass=0;fail=1)all yearTX1
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelasmonthly average minimumreport only (pass=0;fail=1)all yearTX1
NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia7-day minimumreport only (%)all yearTX1
NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly average minimumreport only (%)all yearTX1
NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas7-day minimumreport only (%)all yearTX1
NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelasmonthly average minimumreport only (%)all yearTX1
NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia7-day averagereport only (%)all yearTX1
NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly average minimumreport only (%)all yearTX1
NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas7-day minimumreport only (%)all yearTX1
NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelasmonthly average minimumreport only (%)all yearTX1
Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia7-day minimumreport only (pass=0;fail=1)all yearTX1
Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly average minimumreport only (pass=0;fail=1)all yearTX1
Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pinephales promelas7-day minimumreport only (pass=0;fail=1)all yearTX1
Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pinephales promelasmonthly average minimumreport only (pass=0;fail=1)all yearTX1
LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubia7-day minimumreport only (%)all yearTX1
LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly average minimumreport only (%)all yearTX1
LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelas7-day minimumreport only (%)all yearTX1
LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelasmonthly average minimumreport only (%)all yearTX1
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubia7-day minimumreport only (%)all yearTX1
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly average minimumreport only (%)all yearTX1
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas7-day minimumreport only (%)all yearTX1
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelasmonthly average minimumreport only (%)all yearTX1
Whole effluent toxicity - retest #1single samplereport only (pass=0;fail=1)all yearTXA
Whole effluent toxicity - retest #2single samplereport only (pass=0;fail=1)all yearTXA
LC50 Pass/Fail Static 24Hr Acute D. Pulexsingle samplereport only (pass=0;fail=1)all yearTXA
LC50 Pass/Fail Static 24Hr Acute Pimephales promelassingle samplereport only (pass=0;fail=1)all yearTXA

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/TX0024112 · MCP: https://passage-data.com/mcp