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Horizon Regional Mud

Sewage treatment plant, major discharger, El Paso County, Texas. NPDES permit TX0086045, in force until May 24, 2029. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: outfall 003 form A monthly (20 values), outfall TX3 form Q quarterly (14 values), outfall TXC form S twice a year
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 18 reports late

Limits in force (38)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]monthly minimum≥ 4 mg/Lall year003
pHminimum≥ 6 SUall year003
pHmaximum≤ 9 SUall year003
Solids, total suspendeddaily average≤ 15 mg/Lall year003
Solids, total suspendeddaily maximum≤ 40 mg/Lall year003
Solids, total suspendeddaily average≤ 375 lb/dall year003
Nitrogen, ammonia total [as N]daily average≤ 3 mg/Lall year003
Nitrogen, ammonia total [as N]daily maximum≤ 10 mg/Lall year003
Nitrogen, ammonia total [as N]daily average≤ 75 lb/dall year003
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all year003
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year003
Flow, in conduit or thru treatment plant2-hour peak≤ 5208 gal/minall year003
Flow, in conduit or thru treatment plantannual average≤ 3 MGDall year003
Chlorine, total residualmonthly minimum≥ 1 mg/Lall year003
Chlorine, total residualmonthly maximum≤ 4 mg/Lall year003
E. colidaily average≤ 126 CFU/100mLall year003
E. colidaily maximum≤ 399 CFU/100mLall year003
BOD, carbonaceous [5 day, 20 C]daily average≤ 10 mg/Lall year003
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 25 mg/Lall year003
BOD, carbonaceous [5 day, 20 C]daily average≤ 250 lb/dall year003
Whole effluent toxicity - retest #148-hour minimumreport only (pass=0;fail=1)all yearTX3
Whole effluent toxicity - retest #1monthly average minimumreport only (pass=0;fail=1)all yearTX3
Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex48-hour minimumreport only (pass=0;fail=1)all yearTX3
Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulexmonthly average minimumreport only (pass=0;fail=1)all yearTX3
LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas48-hour minimumreport only (pass=0;fail=1)all yearTX3
LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelasmonthly average minimumreport only (pass=0;fail=1)all yearTX3
NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex48-hour minimumreport only (%)all yearTX3
NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulexmonthly average minimumreport only (%)all yearTX3
NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas48-hour minimumreport only (%)all yearTX3
NOAEC Lethal Static Renewal 48Hr acute Pimephales promelasmonthly average minimumreport only (%)all yearTX3
LOAEC Lethal Static Renewal 48HR Acute Daphnia pulex48-hour minimumreport only (%)all yearTX3
LOAEC Lethal Static Renewal 48HR Acute Daphnia pulexmonthly average minimumreport only (%)all yearTX3
LOAEC Lethal Survival Static Renewal 48Hr Acute Pimephales promelas48-hour minimumreport only (%)all yearTX3
LOAEC Lethal Survival Static Renewal 48Hr Acute Pimephales promelasmonthly average minimumreport only (%)all yearTX3
Whole effluent toxicity - retest #1single samplereport only (pass=0;fail=1)all yearTXC
Whole effluent toxicity - retest #2single samplereport only (pass=0;fail=1)all yearTXC
LC50 Pass/Fail Static 24Hr Acute D. Pulexsingle samplereport only (pass=0;fail=1)all yearTXC
LC50 Pass/Fail Static 24Hr Acute Pimephales promelassingle samplereport only (pass=0;fail=1)all yearTXC

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/TX0086045 · MCP: https://passage-data.com/mcp