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North Texas Municipal Water District

Sewage treatment plant, major discharger, New Hope, Texas. NPDES permit TX0138584, in force until Mar 2, 2031. Last 12 months: over a limit once (last September 2026), 76 required values missing, 5 of 8 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: outfall 001 form A monthly (20 values), outfall TX1 form Q quarterly (20 values), outfall TXA form S twice a year
Last report on file
September 2026

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

Period endingParameterReportedLimitOver by
September 2026BOD, carbonaceous [5 day, 20 C], daily maximum22.2 mg/L≤ 20 mg/L11%

Limits in force (48)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]monthly minimum≥ 6 mg/Lall year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendeddaily average≤ 5 mg/Lall year001
Solids, total suspendeddaily maximum≤ 20 mg/Lall year001
Solids, total suspendeddaily average≤ 667 lb/dall year001
Nitrogen, ammonia total [as N]daily average≤ 1.3 mg/LApr–Sep001
Nitrogen, ammonia total [as N]daily average≤ 3 mg/LJan, Feb, Mar, Oct, Nov, Dec001
Nitrogen, ammonia total [as N]daily maximum≤ 6 mg/LApr–Sep001
Nitrogen, ammonia total [as N]daily maximum≤ 10 mg/LJan, Feb, Mar, Oct, Nov, Dec001
Nitrogen, ammonia total [as N]daily average≤ 173 lb/dApr–Sep001
Nitrogen, ammonia total [as N]daily average≤ 400 lb/dJan, Feb, Mar, Oct, Nov, Dec001
Phosphorus, total [as P]daily averagereport only (mg/L)all year001
Phosphorus, total [as P]daily averagereport only (lb/d)all 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≤ 44444 gal/minall year001
Flow, in conduit or thru treatment plantannual average≤ 16 MGDall year001
E. colidaily average≤ 126 CFU/100mLall year001
E. colidaily maximum≤ 399 CFU/100mLall year001
BOD, carbonaceous [5 day, 20 C]daily average≤ 5 mg/LApr–Sep001
BOD, carbonaceous [5 day, 20 C]daily average≤ 10 mg/LJan, Feb, Mar, Oct, Nov, Dec001
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 20 mg/LApr–Sep001
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 25 mg/LJan, Feb, Mar, Oct, Nov, Dec001
BOD, carbonaceous [5 day, 20 C]daily average≤ 667 lb/dApr–Sep001
BOD, carbonaceous [5 day, 20 C]daily average≤ 1334 lb/dJan, Feb, Mar, Oct, Nov, Dec001
Whole effluent toxicity - retest #17-day minimumreport only (fail=0;pass=1)all yearTX1
Whole effluent toxicity - retest #1monthly average minimumreport only (fail=0;pass=1)all yearTX1
Whole effluent toxicity - retest #27-day minimumreport only (fail=0;pass=1)all yearTX1
Whole effluent toxicity - retest #2monthly average minimumreport only (fail=0;pass=1)all yearTX1
IC25 Low Flow Pass/Fail Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia7-day minimumreport only (fail=0;pass=1)all yearTX1
IC25 Low Flow Pass/Fail Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly average minimumreport only (fail=0;pass=1)all yearTX1
IC25 Low Flow Pass/Fail Lethal Static Renewal 7 Day Chronic Pimephales promelas7-day minimumreport only (fail=0;pass=1)all yearTX1
IC25 Low Flow Pass/Fail Lethal Static Renewal 7 Day Chronic Pimephales promelasmonthly average minimumreport only (fail=0;pass=1)all yearTX1
IC25 Low Flow Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia7-day minimumreport only (fail=0;pass=1)all yearTX1
IC25 Low Flow Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly average minimumreport only (fail=0;pass=1)all yearTX1
IC25 Low Flow Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas7-day minimumreport only (fail=0;pass=1)all yearTX1
IC25 Low Flow Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelasmonthly average minimumreport only (fail=0;pass=1)all yearTX1
IC25 Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia7-day minimumreport only (%)all yearTX1
IC25 Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly average minimumreport only (%)all yearTX1
IC25 Lethal Static Renewal 7 Day Chronic Pimephales promelas7-day minimumreport only (%)all yearTX1
IC25 Lethal Static Renewal 7 Day Chronic Pimephales promelasmonthly average minimumreport only (%)all yearTX1
IC25 Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia7-day minimumreport only (%)all yearTX1
IC25 Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly average minimumreport only (%)all yearTX1
IC25 Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas7-day minimumreport only (%)all yearTX1
IC25 Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelasmonthly average minimumreport only (%)all yearTX1
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.

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/TX0138584 · MCP: https://passage-data.com/mcp