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Arkansas Electric Cooperative Corporation - Magnet Cove Generating Station

Electric Services, major discharger, Malvern, Arkansas. NPDES permit AR0049611, in force until Dec 31, 2029. Last 12 months: over a limit once (last December 2025), 3 of 36 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 25 days after each period: outfall 001 form A monthly (12 values), outfall 01A form A monthly (8 values), outfall 01B form A monthly (12 values), outfall TX1 form Q quarterly (12 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
1 value over a limit, 0 required values missing, 0 of 40 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period endingParameterReportedLimitOver by
December 2025Solids, total suspended, monthly average13 lb/d≤ 9.8 lb/d33%

Limits in force (44)

ParameterStatisticLimitMonthsOutfall
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendeddaily maximum≤ 100 mg/Lall year001
Solids, total suspendedmonthly average≤ 157.9 lb/dall year001
Solids, total suspendeddaily maximum≤ 526.3 lb/dall year001
Oil & Greasemonthly average≤ 10 mg/Lall year001
Oil & Greasedaily maximum≤ 15 mg/Lall year001
Oil & Greasemonthly average≤ 52.6 lb/dall year001
Oil & Greasedaily maximum≤ 78.9 lb/dall year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
pHminimum≥ 6 SUall year01A
pHmaximum≤ 9 SUall year01A
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year01A
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year01A
Chlorine, free availablemonthly average≤ .2 mg/Lall year01A
Chlorine, free availabledaily maximum≤ .5 mg/Lall year01A
Chlorine, free availablemonthly average≤ .087 lb/dall year01A
Chlorine, free availabledaily maximum≤ .22 lb/dall year01A
pHminimum≥ 6 SUall year01B
pHmaximum≤ 9 SUall year01B
Solids, total suspendedmonthly average≤ 30 mg/Lall year01B
Solids, total suspendeddaily maximum≤ 100 mg/Lall year01B
Solids, total suspendedmonthly average≤ 9.8 lb/dall year01B
Solids, total suspendeddaily maximum≤ 32.5 lb/dall year01B
Oil & Greasemonthly average≤ 15 mg/Lall year01B
Oil & Greasedaily maximum≤ 20 mg/Lall year01B
Oil & Greasemonthly average≤ 4.9 lb/dall year01B
Oil & Greasedaily maximum≤ 6.5 lb/dall year01B
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year01B
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year01B
Whole effluent toxicity - retest #148-hour minimumreport only (pass=0;fail=1)all yearTX1
Whole effluent toxicity - retest #248-hour minimumreport only (pass=0;fail=1)all yearTX1
WET, sublethal retest #148-hour minimumreport only (pass=0;fail=1)all yearTX1
WET, sublethal retest #248-hour minimumreport only (pass=0;fail=1)all yearTX1
Whole Effluent Toxicity - Retest #348-hour minimumreport only (pass=0;fail=1)all yearTX1
Whole Effluent Toxicity, Sub-Lethal Retest #348-hour minimumreport only (pass=0;fail=1)all yearTX1
Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex48-hour minimumreport only (pass=0;fail=1)all yearTX1
LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas48-hour minimumreport only (pass=0;fail=1)all yearTX1
NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex48-hour minimumreport only (%)all yearTX1
NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas48-hour minimumreport only (%)all yearTX1
Coef Of Var Static Renewal 48Hr Acute D. pulex48-hour minimumreport only (%)all yearTX1
Coef Of Var Static Renewal 48Hr Acute Pimephales promelas48-hour minimumreport only (%)all yearTX1

How strict are these limits?

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

Same industry: the 18 Electric Services permits in Arkansas.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/AR0049611 · MCP: https://passage-data.com/mcp