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Public Service Co. of Oklahoma - NE Station

Electric Services, major discharger, Oologah, Oklahoma. NPDES permit OK0034380, in force until Dec 31, 2026. Last 12 months: no values over a limit, 6 required values missing, 3 of 92 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 004 form A monthly (9 values), outfall 005 form A monthly (15 values), outfall 101 form A monthly (2 values), outfall 102 form A monthly (10 values), outfall 103 form A monthly (2 values), outfall 104 form A monthly (6 values), and 5 more forms
Renewal application due
Jul 4, 2026 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
2 values over a limit, 0 required values missing, 8 of 92 reports late

Limits in force (78)

ParameterStatisticLimitMonthsOutfall
pHminimum≥ 6.5 SUall year004
pHmaximum≤ 9 SUall year004
Solids, total suspendedmonthly averagereport only (mg/L)all year004
Solids, total suspendeddaily maximum≤ 45 mg/Lall year004
Oil and grease, hexane extr methodmonthly average≤ 10 mg/Lall year004
Oil and grease, hexane extr methoddaily maximum≤ 15 mg/Lall year004
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year004
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year004
Chlorine, total residualinstantaneous maximum≤ .099 mg/Lall year004
Temperature, water deg. centigrademonthly averagereport only (deg C)all year005
Temperature, water deg. centigradedaily maximumreport only (deg C)all year005
pHminimum≥ 6.5 SUall year005
pHmaximum≤ 9 SUall year005
Copper, total [as Cu]monthly averagereport only (ug/L)all year005
Copper, total [as Cu]daily maximumreport only (ug/L)all year005
Copper, total [as Cu]monthly averagereport only (lb/d)all year005
Copper, total [as Cu]daily maximumreport only (lb/d)all year005
Selenium, total [as Se]monthly average≤ 4.94 ug/Lall year005
Selenium, total [as Se]daily maximum≤ 6.74 ug/Lall year005
Selenium, total [as Se]monthly average≤ .122 lb/dall year005
Selenium, total [as Se]daily maximum≤ .165 lb/dall year005
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year005
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year005
Chlorine, total residualinstantaneous maximum≤ .099 mg/Lall year005
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year101
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year101
Chlorine, free availablemonthly average≤ .2 mg/Lall year101
Chlorine, free availabledaily maximum≤ .5 mg/Lall year101
Chlorine, free availablemonthly average≤ 2 lb/dall year101
Chlorine, free availabledaily maximum≤ 4 lb/dall year101
Solids, total suspendedmonthly average≤ 30 mg/Lall year102
Solids, total suspendeddaily maximum≤ 50 mg/Lall year102
Solids, total suspendedmonthly average≤ 290 lb/dall year102
Solids, total suspendeddaily maximum≤ 480 lb/dall year102
Oil and grease, hexane extr methodmonthly average≤ 15 mg/Lall year102
Oil and grease, hexane extr methoddaily maximum≤ 20 mg/Lall year102
Oil and grease, hexane extr methodmonthly average≤ 140 lb/dall year102
Oil and grease, hexane extr methoddaily maximum≤ 190 lb/dall year102
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year102
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year102
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year103
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year103
Chlorine, free availablemonthly average≤ .2 mg/Lall year103
Chlorine, free availabledaily maximum≤ .5 mg/Lall year103
Chlorine, free availablemonthly average≤ 2 lb/dall year103
Chlorine, free availabledaily maximum≤ 5 lb/dall year103
Solids, total suspendedmonthly average≤ 30 mg/Lall year104
Solids, total suspendeddaily maximum≤ 50 mg/Lall year104
Oil and grease, hexane extr methodmonthly average≤ 15 mg/Lall year104
Oil and grease, hexane extr methoddaily maximum≤ 20 mg/Lall year104
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year104
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year104
Solids, total suspendedmonthly average≤ 30 mg/Lall year105
Solids, total suspendeddaily maximum≤ 100 mg/Lall year105
Oil and grease, hexane extr methodmonthly average≤ 15 mg/Lall year105
Oil and grease, hexane extr methoddaily maximum≤ 20 mg/Lall year105
Copper, total [as Cu]monthly average≤ 1 mg/Lall year105
Copper, total [as Cu]daily maximum≤ 1 mg/Lall year105
Iron, total [as Fe]monthly average≤ 1 mg/Lall year105
Iron, total [as Fe]daily maximum≤ 1 mg/Lall year105
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year105
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year105
Whole effluent toxicity - retest #17-day minimumreport only (pass=0;fail=1)all yearTX5
Whole effluent toxicity - retest #17-day minimumreport only (pass=0;fail=1)all yearTX5
Whole effluent toxicity - retest #27-day minimumreport only (pass=0;fail=1)all yearTX5
Whole effluent toxicity - retest #27-day minimumreport only (pass=0;fail=1)all yearTX5
Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia7-day minimumreport only (pass=0;fail=1)all yearTX5
Pass/Fail Static Renewal 7Day Chronic Pimephales promelas7-day minimumreport only (pass=0;fail=1)all yearTX5
%Mortality 7Day Chronic Ceriodaphnia dubia7-day minimumreport only (%)all yearTX5
%Mortality Static Renewal 7Day Chronic Pimephales Promelas7-day minimumreport only (%)all yearTX5
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia7-day minimumreport only (pass=0;fail=1)all yearTX5
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas7-day minimumreport only (pass=0;fail=1)all yearTX5
NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia7-day minimumreport only (%)all yearTX5
NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas7-day minimumreport only (%)all yearTX5
NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia7-day minimumreport only (%)all yearTX5
NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas7-day minimumreport only (%)all yearTX5
Coef Of Var Static Renewal 7Day Chronic Ceriodaphnia dubia7-day minimumreport only (%)all yearTX5
Coef Of Var Static Renewal 7Day Chronic Pimephales promelas7-day minimumreport only (%)all yearTX5

How strict are these limits?

Cited limits by parameter: Oklahoma's rules and the federal ones.

Same industry: the 25 Electric Services permits in Oklahoma.

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Your permit document is the final word. As JSON: /api/v1/permits/OK0034380 · MCP: https://passage-data.com/mcp