ASSOCIATED ELECTRIC COOP.

NPDES permit MO0001171 · Major NON-POTW · administratively continued, expires 2024-12-31 · 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.

This permit expired on 2024-12-31 and is administratively continued: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

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

1values over a limit
0required values missing, on 0 form(s)
0of 107 forms filed late

Last period with anything received: 2026-07-31. Most often over: Solids, total suspended (1).

Reporting

Reports are due about 28 days after each monitoring period ends (the most common figure among MO permits in EPA's filings — check your permit).

Limits in force (133)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheitDAILY MX report only all year
001Temperature, water deg. fahrenheitMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only 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
001Flow, in conduit or thru treatment plantMO AVG report only all year
002Temperature, water deg. fahrenheitDAILY MX report only all year
002Temperature, water deg. fahrenheitMO AVG report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002Flow, in conduit or thru treatment plantMO AVG report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002Flow, in conduit or thru treatment plantMO AVG report only all year
003pHMINIMUM >= 6 SU all year
003pHMAXIMUM <= 9 SU all year
003Solids, total suspendedDAILY MX report only all year
003Solids, total suspendedMO AVG report only all year
003Solids, total suspendedDAILY MX <= 100 mg/L all year
003Solids, total suspendedMO AVG <= 30 mg/L all year
003Solids, total suspendedDAILY MX report only all year
003Solids, total suspendedMO AVG report only all year
003Oil and grease [soxhlet extr.] tot.DAILY MX <= 15 mg/L all year
003Oil and grease [soxhlet extr.] tot.MO AVG <= 10 mg/L all year
003Nitrogen, ammonia total [as N]DAILY MX report only all year
003Nitrogen, ammonia total [as N]MO AVG report only all year
003Nitrite + Nitrate total [as N]DAILY MX report only all year
003Nitrite + Nitrate total [as N]MO AVG report only all year
003Phosphorus, total [as P]DAILY MX report only all year
003Phosphorus, total [as P]MO AVG report only all year
003Aluminum, total [as Al]DAILY MX report only all year
003Aluminum, total [as Al]MO AVG report only all year
003Flow, in conduit or thru treatment plantDAILY MX report only all year
003Flow, in conduit or thru treatment plantMO AVG report only all year
003Nitrogen, Kjeldahl, total [TKN] [water]DAILY MX report only all year
003Nitrogen, Kjeldahl, total [TKN] [water]MO AVG report only all year
005Oxygen demand, chem. [high level] [COD]DAILY MX report only all year
005pHMINIMUM report only all year
005pHMAXIMUM report only all year
005Solids, total suspendedDAILY MX report only all year
005Solids, settleableDAILY MX report only all year
005Oil and grease [soxhlet extr.] tot.DAILY MX report only all year
005Flow, in conduit or thru treatment plantDAILY MX report only all year
006pHMINIMUM report only all year
006pHMAXIMUM report only all year
006Solids, total suspendedDAILY MX report only all year
006Solids, total suspendedMO AVG report only all year
006Oil and grease [soxhlet extr.] tot.DAILY MX report only all year
006Oil and grease [soxhlet extr.] tot.MO AVG report only all year
006Nitrogen, ammonia total [as N]DAILY MX report only all year
006Nitrogen, ammonia total [as N]MO AVG report only all year
006Nitrite + Nitrate total [as N]DAILY MX report only all year
006Nitrite + Nitrate total [as N]MO AVG report only all year
006Phosphorus, total [as P]DAILY MX report only all year
006Phosphorus, total [as P]MO AVG report only all year
006Flow, in conduit or thru treatment plantDAILY MX report only all year
006Flow, in conduit or thru treatment plantMO AVG report only all year
006Chlorine, total residualDAILY MX report only all year
006Chlorine, total residualMO AVG report only all year
006Nitrogen, Kjeldahl, total [TKN] [water]DAILY MX report only all year
006Nitrogen, Kjeldahl, total [TKN] [water]MO AVG report only all year
006Toxicity [acute], Ceriodaphnia dubiaVALUE report only all year
006Toxicity [acute], Pimephales promelas [Fathead Minnow]VALUE report only all year
006Chemical oxygen demand [COD]DAILY MX report only all year
006Chemical oxygen demand [COD]MO AVG report only all year
007Temperature, water deg. fahrenheitDAILY MX <= 81 deg F Oct
007Temperature, water deg. fahrenheitDAILY MX <= 60 deg F Dec
007Temperature, water deg. fahrenheitDAILY MX <= 92 deg F Jul, Aug
007Temperature, water deg. fahrenheitDAILY MX <= 63 deg F Mar
007Temperature, water deg. fahrenheitDAILY MX <= 53 deg F Jan, Feb
007Temperature, water deg. fahrenheitDAILY MX <= 83 deg F May
007Temperature, water deg. fahrenheitDAILY MX <= 90 deg F Jun, Sep
007Temperature, water deg. fahrenheitDAILY MX <= 73 deg F Apr, Nov
007Temperature, water deg. fahrenheitMO AVG report only Oct
007Temperature, water deg. fahrenheitMO AVG report only Dec
007Temperature, water deg. fahrenheitMO AVG report only Jul, Aug
007Temperature, water deg. fahrenheitMO AVG report only Mar
007Temperature, water deg. fahrenheitMO AVG report only Jan, Feb
007Temperature, water deg. fahrenheitMO AVG report only May
007Temperature, water deg. fahrenheitMO AVG report only Jun, Sep
007Temperature, water deg. fahrenheitMO AVG report only Apr, Nov
007Flow, in conduit or thru treatment plantDAILY MX report only all year
007Flow, in conduit or thru treatment plantMO AVG report only all year
007Month excursion time [min]TOTAL <= 88 hr all year
007Month excursion time [min]MO TOTAL report only all year
008Oxygen demand, chem. [high level] [COD]DAILY MX report only all year
008pHMINIMUM report only all year
008pHMAXIMUM report only all year
008Solids, total suspendedDAILY MX report only all year
008Solids, settleableDAILY MX report only all year
008Oil and grease [soxhlet extr.] tot.DAILY MX report only all year
008Flow, in conduit or thru treatment plantDAILY MX report only all year
009pHMINIMUM >= 6 SU all year
009pHMAXIMUM <= 9 SU all year
009Solids, total suspendedDAILY MX <= 50 mg/L all year
009Solids, total suspendedMO AVG report only all year
009Oil and grease [soxhlet extr.] tot.DAILY MX <= 15 mg/L all year
009Oil and grease [soxhlet extr.] tot.MO AVG <= 10 mg/L all year
009Nitrogen, ammonia total [as N]DAILY MX report only all year
009Nitrogen, ammonia total [as N]MO AVG report only all year
009Nitrite + Nitrate total [as N]DAILY MX report only all year
009Nitrite + Nitrate total [as N]MO AVG report only all year
009Phosphorus, total [as P]DAILY MX report only all year
009Phosphorus, total [as P]MO AVG report only all year
009Aluminum, total [as Al]DAILY MX report only all year
009Aluminum, total [as Al]MO AVG report only all year
009Flow, in conduit or thru treatment plantDAILY MX report only all year
009Flow, in conduit or thru treatment plantMO AVG report only all year
009Nitrogen, Kjeldahl, total [TKN] [water]DAILY MX report only all year
009Nitrogen, Kjeldahl, total [TKN] [water]MO AVG report only all year
011FreeboardDAILY MN >= 2 ft all year
01SpHMINIMUM >= 6 SU all year
01SpHMAXIMUM <= 9 SU all year
01SSolids, total suspendedDAILY MX report only all year
01SSolids, total suspendedMO AVG report only all year
01SSolids, total suspendedDAILY MX <= 100 mg/L all year
01SSolids, total suspendedMO AVG <= 30 mg/L all year
01SSolids, total suspendedDAILY MX report only all year
01SSolids, total suspendedMO AVG report only all year
01SOil and grease [soxhlet extr.] tot.DAILY MX <= 20 mg/L all year
01SOil and grease [soxhlet extr.] tot.MO AVG <= 15 mg/L all year
01SFlow, in conduit or thru treatment plantDAILY MX report only all year
01SFlow, in conduit or thru treatment plantMO AVG report only all year
02SpHMINIMUM >= 6 SU all year
02SpHMAXIMUM <= 9 SU all year
02SSolids, total suspendedDAILY MX report only all year
02SSolids, total suspendedMO AVG report only all year
02SSolids, total suspendedDAILY MX <= 100 mg/L all year
02SSolids, total suspendedMO AVG <= 30 mg/L all year
02SSolids, total suspendedDAILY MX report only all year
02SSolids, total suspendedMO AVG report only all year
02SOil and grease [soxhlet extr.] tot.DAILY MX <= 20 mg/L all year
02SOil and grease [soxhlet extr.] tot.MO AVG <= 15 mg/L all year
02SFlow, in conduit or thru treatment plantDAILY MX report only all year
02SFlow, in conduit or thru treatment plantMO AVG 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