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Southwestern Electric Power Company

Electric Services, major discharger, Pittsburg, Texas. NPDES permit TX0063215, in force until Sep 21, 2028. Last 12 months: no values over a limit, 7 required values missing, 3 of 58 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 26 days after each period: outfall 001 form A monthly (12 values), outfall 003 form A monthly (10 values), outfall 101 form A monthly (10 values), outfall 103 form A monthly (14 values), outfall 103 form Q quarterly (2 values), outfall TX1 form S twice a year, and 5 more forms
Renewal application due
Mar 25, 2028 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 17 required values missing, 6 of 60 reports late

Limits in force (120)

ParameterStatisticLimitMonthsOutfall
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendeddaily maximum≤ 50 mg/Lall year001
Solids, total suspendeddaily maximum≤ 11883 lb/dall year001
Oil & Greasedaily maximum≤ 20 mg/Lall year001
Oil & Greasedaily maximum≤ 2201 lb/dall year001
Selenium, total [as Se]daily average≤ .015 mg/Lall year001
Selenium, total [as Se]daily maximum≤ .032 mg/Lall year001
Selenium, total [as Se]daily average≤ 2.5 lb/dall year001
Selenium, total [as Se]daily maximum≤ 5.3 lb/dall year001
Flow, in conduit or thru treatment plantdaily average≤ 20 MGDall year001
Flow, in conduit or thru treatment plantdaily maximum≤ 60 MGDall year001
Temperature, water deg. fahrenheitdaily averagereport only (deg F)all year003
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year003
Flow, in conduit or thru treatment plantdaily average≤ 1425 MGDall year003
Flow, in conduit or thru treatment plantdaily maximum≤ 1425 MGDall year003
Chlorine, total residualdaily maximum≤ .2 mg/Lall year003
Chlorine, total residualdaily maximum≤ 169 lb/dall year003
Chlorine, free availabledaily average≤ .2 mg/Lall year003
Chlorine, free availabledaily maximum≤ .5 mg/Lall year003
Chlorine, free availabledaily average≤ 169 lb/dall year003
Chlorine, free availabledaily maximum≤ 423 lb/dall year003
Solids, total suspendeddaily average≤ 30 mg/Lall year101
Solids, total suspendeddaily maximum≤ 100 mg/Lall year101
Oil & Greasedaily average≤ 15 mg/Lall year101
Oil & Greasedaily maximum≤ 20 mg/Lall year101
Copper, total [as Cu]daily average≤ .5 mg/Lall year101
Copper, total [as Cu]daily maximum≤ 1 mg/Lall year101
Iron, total [as Fe]daily average≤ 1 mg/Lall year101
Iron, total [as Fe]daily maximum≤ 1 mg/Lall year101
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all year101
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year101
BOD, 5-day, 20 deg. Cdaily average≤ 20 mg/Lall year103
BOD, 5-day, 20 deg. Cdaily maximum≤ 45 mg/Lall year103
BOD, 5-day, 20 deg. Cdaily average≤ 2.67 lb/dall year103
BOD, 5-day, 20 deg. Cdaily maximum≤ 6 lb/dall year103
pHminimum≥ 6 SUall year103
pHmaximum≤ 9 SUall year103
Solids, total suspendeddaily average≤ 20 mg/Lall year103
Solids, total suspendeddaily maximum≤ 45 mg/Lall year103
Solids, total suspendeddaily average≤ 2.67 lb/dall year103
Solids, total suspendeddaily maximum≤ 6 lb/dall year103
Flow, in conduit or thru treatment plantdaily average≤ .016 MGDall year103
Flow, in conduit or thru treatment plantdaily maximum≤ .02 MGDall year103
Chlorine, total residualmonthly minimum≥ 1 mg/Lall year103
Chlorine, total residualmonthly maximum≤ 4 mg/Lall year103
E. colidaily average≤ 126 CFU/100mLall year103
E. colidaily maximum≤ 399 CFU/100mLall year103
Whole effluent toxicity - retest #17-day minimumreport only (pass=0;fail=1)all yearTX1
Whole effluent toxicity - retest #17-day minimumreport only (pass=0;fail=1)all yearTX1
Whole effluent toxicity - retest #1monthly average minimumreport only (pass=0;fail=1)all yearTX1
Whole effluent toxicity - retest #1monthly average minimumreport only (pass=0;fail=1)all yearTX1
Whole effluent toxicity - retest #27-day minimumreport only (pass=0;fail=1)all yearTX1
Whole effluent toxicity - retest #27-day minimumreport only (pass=0;fail=1)all yearTX1
Whole effluent toxicity - retest #2monthly average minimumreport only (pass=0;fail=1)all yearTX1
Whole effluent toxicity - retest #2monthly average minimumreport only (pass=0;fail=1)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 minimumreport 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 #17-day minimumreport only (pass=0;fail=1)all yearTX3
Whole effluent toxicity - retest #17-day minimumreport only (pass=0;fail=1)all yearTX3
Whole effluent toxicity - retest #1monthly average minimumreport only (pass=0;fail=1)all yearTX3
Whole effluent toxicity - retest #1monthly average minimumreport only (pass=0;fail=1)all yearTX3
Whole effluent toxicity - retest #27-day minimumreport only (pass=0;fail=1)all yearTX3
Whole effluent toxicity - retest #27-day minimumreport only (pass=0;fail=1)all yearTX3
Whole effluent toxicity - retest #2monthly average minimumreport only (pass=0;fail=1)all yearTX3
Whole effluent toxicity - retest #2monthly average minimumreport only (pass=0;fail=1)all yearTX3
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia7-day minimumreport only (pass=0;fail=1)all yearTX3
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly average minimumreport only (pass=0;fail=1)all yearTX3
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas7-day minimumreport only (pass=0;fail=1)all yearTX3
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelasmonthly average minimumreport only (pass=0;fail=1)all yearTX3
NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia7-day minimumreport only (%)all yearTX3
NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly average minimumreport only (%)all yearTX3
NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas7-day minimumreport only (%)all yearTX3
NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelasmonthly average minimumreport only (%)all yearTX3
NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia7-day minimumreport only (%)all yearTX3
NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly average minimumreport only (%)all yearTX3
NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas7-day minimumreport only (%)all yearTX3
NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelasmonthly average minimumreport only (%)all yearTX3
Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia7-day minimumreport only (pass=0;fail=1)all yearTX3
Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly average minimumreport only (pass=0;fail=1)all yearTX3
Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pinephales promelas7-day minimumreport only (pass=0;fail=1)all yearTX3
Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Pinephales promelasmonthly average minimumreport only (pass=0;fail=1)all yearTX3
LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubia7-day minimumreport only (%)all yearTX3
LOEC Lethal Survival Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly average minimumreport only (%)all yearTX3
LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelas7-day minimumreport only (%)all yearTX3
LOEC Lethal Survival Static Renewal 7 Day Chronic Pimephales promelasmonthly average minimumreport only (%)all yearTX3
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubia7-day minimumreport only (%)all yearTX3
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly average minimumreport only (%)all yearTX3
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelas7-day minimumreport only (%)all yearTX3
LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Pimephales promelasmonthly average minimumreport only (%)all yearTX3
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
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

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.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/TX0063215 · MCP: https://passage-data.com/mcp