Passage Data · Check a report · Use it from your AI

Southwestern Electric Power Company

Electric Services, major discharger, Hallsville, Texas. NPDES permit TX0087726, in force until Mar 4, 2027. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: outfall 002 form A monthly (6 values), outfall 003 form A monthly (6 values), outfall 005 form A monthly (4 values), outfall 005 form Q quarterly (1 value), outfall 007 form A monthly (5 values), outfall 007 form Q quarterly (2 values), and 15 more forms
Renewal application due
Sep 5, 2026 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
1 value over a limit, 0 required values missing, 0 of 114 reports late

Limits in force (104)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitdaily averagereport only (deg F)all year002
Temperature, water deg. fahrenheitdaily maximum≤ 122 deg Fall year002
Flow, in conduit or thru treatment plantdaily average≤ 600 MGDall year002
Flow, in conduit or thru treatment plantdaily maximum≤ 600 MGDall year002
Chlorine, total residualdaily maximum≤ .2 mg/Lall year002
Chlorine, total residualdaily maximum≤ 75.6 lb/dall year002
pHminimum≥ 6 SUall year003
pHmaximum≤ 9 SUall year003
Solids, total suspendeddaily maximum≤ 50 mg/Lall year003
Oil & Greasedaily maximum≤ 20 mg/Lall year003
Selenium, total [as Se]daily maximum≤ .033 mg/Lall 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
pHminimum≥ 6 SUall year005
pHmaximum≤ 9 SUall year005
Solids, total suspendeddaily maximum≤ 50 mg/Lall year005
Oil & Greasedaily maximum≤ 20 mg/Lall year005
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all year005
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year005
pHminimum≥ 6 SUall year007
pHmaximum≤ 9 SUall year007
Solids, total suspendeddaily average≤ 30 mg/Lall year007
Solids, total suspendeddaily maximum≤ 50 mg/Lall year007
Oil & Greasedaily average≤ 15 mg/Lall year007
Oil & Greasedaily maximum≤ 20 mg/Lall year007
Selenium, total [as Se]daily maximum≤ .036 mg/Lall year007
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all year007
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year007
pHminimum≥ 6 SUall year008
pHmaximum≤ 9 SUall year008
Solids, total suspendeddaily average≤ 30 mg/Lall year008
Solids, total suspendeddaily maximum≤ 100 mg/Lall year008
Oil & Greasedaily average≤ 15 mg/Lall year008
Oil & Greasedaily maximum≤ 20 mg/Lall year008
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all year008
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year008
pHminimum≥ 6 SUall year102
pHmaximum≤ 9 SUall year102
Solids, total suspendeddaily average≤ 30 mg/Lall year102
Solids, total suspendeddaily maximum≤ 100 mg/Lall year102
Oil & Greasedaily average≤ 15 mg/Lall year102
Oil & Greasedaily maximum≤ 20 mg/Lall year102
Selenium, total [as Se]daily average≤ .012 mg/Lall year102
Selenium, total [as Se]daily maximum≤ .025 mg/Lall year102
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all year102
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year102
BOD, 5-day, 20 deg. Cdaily average≤ 20 mg/Lall year302
BOD, 5-day, 20 deg. Cdaily maximum≤ 65 mg/Lall year302
BOD, 5-day, 20 deg. Cdaily average≤ 2.5 lb/dall year302
pHminimum≥ 6 SUall year302
pHmaximum≤ 9 SUall year302
Solids, total suspendeddaily average≤ 20 mg/Lall year302
Solids, total suspendeddaily maximum≤ 65 mg/Lall year302
Solids, total suspendeddaily average≤ 2.5 lb/dall year302
Flow, in conduit or thru treatment plantdaily average≤ .015 MGDall year302
Flow, in conduit or thru treatment plantdaily maximum≤ .03 MGDall year302
Chlorine, total residualminimum≥ 1 mg/Lall year302
Chlorine, total residualdaily maximumreport only (mg/L)all year302
E. colidaily average≤ 126 CFU/100mLall year302
E. colidaily maximum≤ 399 CFU/100mLall year302
pHminimum≥ 6 SUall year402
pHmaximum≤ 9 SUall year402
Solids, total suspendeddaily average≤ 30 mg/Lall year402
Solids, total suspendeddaily maximum≤ 100 mg/Lall year402
Oil & Greasedaily average≤ 15 mg/Lall year402
Oil & Greasedaily maximum≤ 20 mg/Lall year402
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all year402
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year402
Whole effluent toxicity - retest #17-day minimumreport only (pass=0;fail=1)all yearTX2
Whole effluent toxicity - retest #17-day minimumreport only (pass=0;fail=1)all yearTX2
Whole effluent toxicity - retest #1monthly average minimumreport only (pass=0;fail=1)all yearTX2
Whole effluent toxicity - retest #1monthly average minimumreport only (pass=0;fail=1)all yearTX2
Whole effluent toxicity - retest #27-day minimumreport only (pass=0;fail=1)all yearTX2
Whole effluent toxicity - retest #27-day minimumreport only (pass=0;fail=1)all yearTX2
Whole effluent toxicity - retest #2monthly average minimumreport only (pass=0;fail=1)all yearTX2
Whole effluent toxicity - retest #2monthly average minimumreport only (pass=0;fail=1)all yearTX2
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia7-day minimumreport only (pass=0;fail=1)all yearTX2
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly average minimumreport only (pass=0;fail=1)all yearTX2
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas7-day minimumreport only (pass=0;fail=1)all yearTX2
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelasmonthly average minimumreport only (pass=0;fail=1)all yearTX2
NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia7-day minimumreport only (%)all yearTX2
NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly average minimumreport only (%)all yearTX2
NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas7-day minimumreport only (%)all yearTX2
NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelasmonthly average minimumreport only (%)all yearTX2
NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia7-day minimumreport only (%)all yearTX2
NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly average minimumreport only (%)all yearTX2
NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas7-day minimumreport only (%)all yearTX2
NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelasmonthly average minimumreport only (%)all yearTX2
Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia7-day minimumreport only (pass=0;fail=1)all yearTX2
Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly average minimumreport only (pass=0;fail=1)all yearTX2
Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pinephales promelas7-day minimumreport only (pass=0;fail=1)all yearTX2
Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pinephales promelasmonthly average minimumreport only (pass=0;fail=1)all yearTX2
LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubia7-day minimumreport only (%)all yearTX2
LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly average minimumreport only (%)all yearTX2
LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelas7-day minimumreport only (%)all yearTX2
LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelasmonthly average minimumreport only (%)all yearTX2
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubia7-day minimumreport only (%)all yearTX2
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly average minimumreport only (%)all yearTX2
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas7-day minimumreport only (%)all yearTX2
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelasmonthly average minimumreport only (%)all yearTX2
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.

Same industry: the 87 Electric Services permits in Texas.

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

· Save this facility as a site · Superfund sites nearby · Your permits on one board

On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/TX0087726 · MCP: https://passage-data.com/mcp