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

Luminant Generation Company LLC

Electric Services, major discharger, Sunnyvale, Texas. NPDES permit TX0001023 expired Feb 19, 2025; its limits still apply. Last 12 months: no values over a limit, 1 required value missing, 4 of 27 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: outfall 001 form A monthly (10 values), outfall 101 form A monthly (12 values), outfall TX1 form S twice a year, outfall TX1 form Y yearly, outfall TXA form S twice a year
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 25 required values missing, 8 of 29 reports late

Limits in force (58)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitdaily average≤ 105 deg Fall year001
Temperature, water deg. fahrenheitdaily maximum≤ 114 deg Fall year001
Flow, in conduit or thru treatment plantdaily average≤ 870 MGDall year001
Flow, in conduit or thru treatment plantdaily maximum≤ 870 MGDall year001
Chlorine, total residualdaily maximum≤ .2 mg/Lall year001
Chlorine, total residualdaily maximum≤ 242 lb/dall year001
Chlorine, free availabledaily average≤ .2 mg/Lall year001
Chlorine, free availabledaily maximum≤ .5 mg/Lall year001
Chlorine, free availabledaily average≤ 120 lb/dall year001
Chlorine, free availabledaily maximum≤ 302 lb/dall year001
pHminimum≥ 6 SUall year101
pHmaximum≤ 9 SUall year101
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
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 #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/TX0001023 · MCP: https://passage-data.com/mcp