Associated Electric Cooperative, Inc.-Dell Power Plant

NPDES permit AR0049425 · Major NON-POTW · effective, expires 2027-02-28 · 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

0values over a limit
0required values missing, on 0 form(s)
0of 18 forms filed late

Last period with anything received: 2026-07-31.

Reporting

Reports are due about 25 days after each monitoring period ends (the most common figure among AR permits in EPA's filings — check your permit).

Limits in force (55)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheitINST MAX <= 95 deg F all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMO AVG <= 15.3 mg/L all year
001Solids, total suspendedDAILY MX <= 44.1 mg/L all year
001Solids, total suspendedMO AVG <= 108.1 lb/d all year
001Solids, total suspendedDAILY MX <= 311.5 lb/d all year
001Oil & GreaseMO AVG <= 7.3 mg/L all year
001Oil & GreaseDAILY MX <= 10 mg/L all year
001Oil & GreaseMO AVG <= 51.6 lb/d all year
001Oil & GreaseDAILY MX <= 70.6 lb/d all year
001Nitrogen, ammonia total [as N]MO AVG <= 2.1 mg/L Apr
001Nitrogen, ammonia total [as N]MO AVG <= 2.1 mg/L May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= 5.9 mg/L Jan, Feb, Mar, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 5.2 mg/L Apr
001Nitrogen, ammonia total [as N]DAILY MX <= 5.2 mg/L May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 14.7 mg/L Jan, Feb, Mar, Nov, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 14.8 lb/d Apr
001Nitrogen, ammonia total [as N]MO AVG <= 14.8 lb/d May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= 41.7 lb/d Jan, Feb, Mar, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 36.7 lb/d Apr
001Nitrogen, ammonia total [as N]DAILY MX <= 36.7 lb/d May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 103.8 lb/d Jan, Feb, Mar, Nov, Dec
001Sulfate, total [as SO4]MO AVG <= 480 mg/L all year
001Sulfate, total [as SO4]DAILY MX <= 720 mg/L all year
001Sulfate, total [as SO4]MO AVG <= 3390.7 lb/d all year
001Sulfate, total [as SO4]DAILY MX <= 5086.1 lb/d all year
001Copper, total recoverableMO AVG <= 29.5 ug/L all year
001Copper, total recoverableDAILY MX <= 59.1 ug/L all year
001Copper, total recoverableMO AVG <= .1 lb/d all year
001Copper, total recoverableDAILY MX <= .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
001Chlorine, free availableMO AVG <= .2 mg/L all year
001Chlorine, free availableDAILY MX <= .5 mg/L all year
001Chlorine, free availableMO AVG <= .1 lb/d all year
001Chlorine, free availableDAILY MX <= .2 lb/d all year
001Solids, total dissolvedMO AVG <= 1200 mg/L all year
001Solids, total dissolvedDAILY MX <= 1800 mg/L all year
001Solids, total dissolvedMO AVG <= 8476.8 lb/d all year
001Solids, total dissolvedDAILY MX <= 12715.2 lb/d all year
001Bromide [as Br]MO AVG report only all year
001Bromide [as Br]DAILY MX report only all year
001Bromide [as Br]MO AVG report only all year
001Bromide [as Br]DAILY MX report only all year
TX1WET, sublethal retest #17 DA MIN report only all year
TX1WET, sublethal retest #27 DA MIN report only all year
TX1Whole Effluent Toxicity, Sub-Lethal Retest #37 DA MIN report only all year
TX1Whole Effluent Toxicity [WET] - C. dubia7 DA MIN >= 100 % all year
TX1Whole Effluent Toxicity [WET] - C. dubia7 DA MIN >= 80 % all year
TX1Pass/Fail Static Renewal 7Day Chronic Pimephales promelas7 DA MIN report only all year
TX1Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas7 DA MIN report only all year
TX1NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas7 DA MIN report only all year
TX1NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas7 DA MIN report only all year
TX1Coef Of Var Static Renewal 7Day Chronic Pimephales promelas7 DA MIN 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