Arkansas Electric Cooperative Corporation - John L. McClellan Generating Station

NPDES permit AR0000841 · Minor NON-POTW · effective, expires 2027-07-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file
Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

EPA's record, 2025-09-01 to 2026-08-31

3values over a limit
0required values missing, on 0 form(s)
2of 22 forms filed late

Last period with anything received: 2026-07-31. Most often over: Copper, total recoverable (2), Temperature, water deg. fahrenheit (1).

Reporting

Reports are due about 25 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (37)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheitINST MAX <= 108 deg F all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Lead, total recoverableMO AVG report only all year
001Lead, total recoverableDAILY MX report only all year
001Lead, total recoverableMO AVG report only all year
001Lead, total recoverableDAILY MX report only all year
001Copper, total recoverableMO AVG <= 17.2 ug/L all year
001Copper, total recoverableDAILY MX <= 34.6 ug/L all year
001Copper, total recoverableMO AVG <= 8.1 lb/d all year
001Copper, total recoverableDAILY MX <= 16.3 lb/d all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
003pHMINIMUM >= 6 SU all year
003pHMAXIMUM <= 9 SU all year
003Solids, total suspendedMO AVG <= 30 mg/L all year
003Solids, total suspendedDAILY MX <= 100 mg/L all year
003Solids, total suspendedMO AVG <= 485.4 lb/d all year
003Solids, total suspendedDAILY MX <= 1618 lb/d all year
003Oil & GreaseMO AVG <= 10 mg/L all year
003Oil & GreaseDAILY MX <= 15 mg/L all year
003Oil & GreaseMO AVG <= 161.8 lb/d all year
003Oil & GreaseDAILY MX <= 242.7 lb/d all year
003Copper, total [as Cu]MO AVG <= 168.7 ug/L all year
003Copper, total [as Cu]DAILY MX <= 338.4 ug/L all year
003Copper, total [as Cu]MO AVG <= 2.7 lb/d all year
003Copper, total [as Cu]DAILY MX <= 5.5 lb/d all year
003Iron, total [as Fe]MO AVG <= 1 mg/L all year
003Iron, total [as Fe]DAILY MX <= 1 mg/L all year
003Iron, total [as Fe]MO AVG <= 16.2 lb/d all year
003Iron, total [as Fe]DAILY MX <= 16.2 lb/d all year
003Lead, total recoverableMO AVG report only all year
003Lead, total recoverableDAILY MX report only all year
003Lead, total recoverableMO AVG report only all year
003Lead, total recoverableDAILY MX report only all year
003Flow, in conduit or thru treatment plantMO AVG report only all year
003Flow, in conduit or thru treatment plantDAILY MX report only all year

Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states