Associated Electric Cooperative, Inc.

NPDES permit MO0097675 · Major NON-POTW · effective, expires 2027-10-31 · 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)
0of 196 forms filed late

Last period with anything received: 2026-07-31. Most often over: Chlorides + Sulfates (2), pH (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 (224)

OutfallParameterStatisticLimitMonths
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedDAILY MX <= 100 mg/L all year
001Solids, total suspendedMO AVG report only all year
001Solids, total suspendedDAILY MX report only all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Oil and grease [soxhlet extr.] tot.DAILY MX <= 20 mg/L all year
001Oil and grease [soxhlet extr.] tot.MO AVG <= 15 mg/L all year
001Sulfate, total [as SO4]DAILY MX report only all year
001Sulfate, total [as SO4]MO AVG report only all year
001ChlorideDAILY MX report only all year
001ChlorideMO 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
001Chlorides + SulfatesDAILY MX report only all year
001Chlorides + SulfatesMO AVG report only all year
002pHMINIMUM >= 6.5 SU all year
002pHMAXIMUM <= 9 SU 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 >= 6.5 SU all year
003pHMAXIMUM <= 9 SU all year
003Solids, total suspendedDAILY MX <= 100 mg/L all year
003Solids, total suspendedMO AVG report only all year
003Solids, total suspendedDAILY MX report only all year
003Solids, total suspendedMO AVG <= 30 mg/L all year
003Oil and grease [soxhlet extr.] tot.DAILY MX <= 20 mg/L all year
003Oil and grease [soxhlet extr.] tot.MO AVG <= 15 mg/L 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
004pHMINIMUM >= 6.5 SU all year
004pHMAXIMUM <= 9 SU all year
004Flow, in conduit or thru treatment plantDAILY MX report only all year
004Flow, in conduit or thru treatment plantMO AVG report only all year
005pHMINIMUM >= 6.5 SU all year
005pHMAXIMUM <= 9 SU all year
005Solids, total suspendedDAILY MX <= 100 mg/L all year
005Solids, total suspendedMO AVG <= 30 mg/L all year
005Oil and grease [soxhlet extr.] tot.DAILY MX <= 20 mg/L all year
005Oil and grease [soxhlet extr.] tot.MO AVG <= 15 mg/L all year
005Nitrogen, ammonia total [as N]DAILY MX <= 7.5 mg/L Oct
005Nitrogen, ammonia total [as N]DAILY MX <= 3.7 mg/L Jul
005Nitrogen, ammonia total [as N]DAILY MX <= 3.7 mg/L Apr, May, Jun, Aug, Sep
005Nitrogen, ammonia total [as N]DAILY MX <= 7.5 mg/L Jan, Feb, Mar, Nov, Dec
005Nitrogen, ammonia total [as N]MO AVG <= 2.6 mg/L Oct
005Nitrogen, ammonia total [as N]MO AVG <= 1.3 mg/L Jul
005Nitrogen, ammonia total [as N]MO AVG <= 1.4 mg/L Apr, May, Jun, Aug, Sep
005Nitrogen, ammonia total [as N]MO AVG <= 2.8 mg/L Jan, Feb, Mar, Nov, Dec
005Nitrite + Nitrate total [as N]DAILY MX report only all year
005Nitrite + Nitrate total [as N]MO AVG report only all year
005Phosphorus, total [as P]DAILY MX report only all year
005Phosphorus, total [as P]MO AVG report only all year
005Sulfate, total [as SO4]DAILY MX report only all year
005Sulfate, total [as SO4]MO AVG report only all year
005Iron, total recoverableDAILY MX report only all year
005Iron, total recoverableMO AVG report only all year
005Copper, total recoverableDAILY MX report only all year
005Copper, total recoverableMO AVG report only all year
005ChlorideDAILY MX report only all year
005ChlorideMO AVG report only all year
005Flow, in conduit or thru treatment plantDAILY MX report only all year
005Flow, in conduit or thru treatment plantMO AVG report only all year
005Chlorine, total residualDAILY MX <= 18.1 ug/L all year
005Chlorine, total residualMO AVG <= 9 ug/L all year
005Nitrogen, Kjeldahl, total [TKN] [water]DAILY MX report only all year
005Nitrogen, Kjeldahl, total [TKN] [water]MO AVG report only all year
005Toxicity [chronic], Ceriodaphnia dubiaVALUE <= 1.6 toxic all year
005Toxicity [chronic], Pimephales promelas [Fathead Minnow]VALUE <= 1.6 toxic all year
005Chlorides + SulfatesDAILY MX <= 1000 mg/L all year
005Chlorides + SulfatesMO AVG <= 1000 mg/L all year
007Oxygen demand, chem. [high level] [COD]DAILY MX report only all year
007pHMINIMUM >= 6.5 SU all year
007pHMAXIMUM <= 9 SU all year
007Solids, total suspendedDAILY MX report only all year
007Oil and grease [soxhlet extr.] tot.DAILY MX report only all year
007Aluminum, total recoverableDAILY MX report only all year
007Flow, in conduit or thru treatment plantDAILY MX report only all year
008pHMINIMUM >= 6.5 SU all year
008pHMAXIMUM <= 9 SU all year
008Solids, total suspendedDAILY MX <= 50 mg/L all year
008Solids, total suspendedMO AVG <= 50 mg/L all year
008Oil and grease [soxhlet extr.] tot.DAILY MX <= 20 mg/L all year
008Oil and grease [soxhlet extr.] tot.MO AVG <= 15 mg/L all year
008Nitrogen, ammonia total [as N]DAILY MX report only all year
008Nitrogen, ammonia total [as N]MO AVG report only all year
008Nitrite + Nitrate total [as N]DAILY MX report only all year
008Nitrite + Nitrate total [as N]MO AVG report only all year
008Phosphorus, total [as P]DAILY MX report only all year
008Phosphorus, total [as P]MO AVG report only all year
008Sulfate, total [as SO4]DAILY MX report only all year
008Sulfate, total [as SO4]MO AVG report only all year
008Aluminum, total recoverableDAILY MX report only all year
008Aluminum, total recoverableMO AVG report only all year
008ChlorideDAILY MX report only all year
008ChlorideMO AVG report only all year
008Flow, in conduit or thru treatment plantDAILY MX report only all year
008Flow, in conduit or thru treatment plantMO AVG report only all year
008Nitrogen, Kjeldahl, total [TKN] [water]DAILY MX report only all year
008Nitrogen, Kjeldahl, total [TKN] [water]MO AVG report only all year
008Toxicity [chronic], Ceriodaphnia dubiaVALUE <= 1.6 toxic all year
008Toxicity [chronic], Pimephales promelas [Fathead Minnow]VALUE <= 1.6 toxic all year
008Chlorides + SulfatesDAILY MX report only all year
008Chlorides + SulfatesMO AVG report only all year
009Oxygen demand, chem. [high level] [COD]DAILY MX report only all year
009pHMINIMUM >= 6.5 SU all year
009pHMAXIMUM <= 9 SU all year
009Solids, total suspendedDAILY MX report only all year
009Oil and grease [soxhlet extr.] tot.DAILY MX report only all year
009Aluminum, total recoverableDAILY MX report only all year
009Flow, in conduit or thru treatment plantDAILY MX report only all year
011pHMINIMUM >= 6.5 SU all year
011pHMAXIMUM <= 9 SU all year
011Solids, total suspendedDAILY MX <= 100 mg/L all year
011Solids, total suspendedMO AVG <= 30 mg/L all year
011Oil and grease [soxhlet extr.] tot.DAILY MX <= 20 mg/L all year
011Oil and grease [soxhlet extr.] tot.MO AVG <= 15 mg/L all year
011Nitrogen, ammonia total [as N]DAILY MX report only all year
011Nitrogen, ammonia total [as N]MO AVG report only all year
011Nitrite + Nitrate total [as N]DAILY MX report only all year
011Nitrite + Nitrate total [as N]MO AVG report only all year
011Phosphorus, total [as P]DAILY MX report only all year
011Phosphorus, total [as P]MO AVG report only all year
011Sulfate, total [as SO4]DAILY MX report only all year
011Sulfate, total [as SO4]MO AVG report only all year
011Iron, total recoverableDAILY MX report only all year
011Iron, total recoverableMO AVG report only all year
011ChlorideDAILY MX report only all year
011ChlorideMO AVG report only all year
011Flow, in conduit or thru treatment plantDAILY MX report only all year
011Flow, in conduit or thru treatment plantMO AVG report only all year
011Chlorine, total residualDAILY MX report only all year
011Chlorine, total residualMO AVG report only all year
011Nitrogen, Kjeldahl, total [TKN] [water]DAILY MX report only all year
011Nitrogen, Kjeldahl, total [TKN] [water]MO AVG report only all year
011Toxicity [chronic], Ceriodaphnia dubiaVALUE <= 1.6 toxic all year
011Toxicity [chronic], Pimephales promelas [Fathead Minnow]DAILY MX <= 1.6 toxic all year
011Chlorides + SulfatesDAILY MX report only all year
011Chlorides + SulfatesMO AVG report only all year
013pHMINIMUM >= 6 SU all year
013pHMAXIMUM <= 9 SU all year
013Solids, total suspendedDAILY MX <= 30 mg/L all year
013Solids, total suspendedMO AVG <= 20 mg/L all year
013Flow, in conduit or thru treatment plantDAILY MX report only all year
013Flow, in conduit or thru treatment plantMO AVG report only all year
013E. coliDAILY MX <= 630 #/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
013E. coli30DA GM <= 126 #/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
013BOD, 5-day, totalDAILY MX <= 30 mg/L all year
013BOD, 5-day, totalMO AVG <= 20 mg/L all year
014pHMINIMUM >= 6.5 SU all year
014pHMAXIMUM <= 9 SU all year
014Solids, total suspendedDAILY MX report only all year
014Solids, total suspendedMO AVG report only all year
014Solids, total suspendedDAILY MX <= 100 mg/L all year
014Solids, total suspendedMO AVG <= 30 mg/L all year
014Oil and grease [soxhlet extr.] tot.DAILY MX <= 20 mg/L all year
014Oil and grease [soxhlet extr.] tot.MO AVG <= 15 mg/L all year
014Flow, in conduit or thru treatment plantDAILY MX report only all year
014Flow, in conduit or thru treatment plantMO AVG report only all year
016Oxygen demand, chem. [high level] [COD]DAILY MX report only all year
016pHMINIMUM >= 6.5 SU all year
016pHMAXIMUM <= 9 SU all year
016Solids, total suspendedDAILY MX report only all year
016Oil and grease [soxhlet extr.] tot.DAILY MX report only all year
016Aluminum, total recoverableDAILY MX report only all year
016Flow, in conduit or thru treatment plantDAILY MX report only all year
017Oxygen demand, chem. [high level] [COD]DAILY MX report only all year
017pHMINIMUM >= 6.5 SU all year
017pHMAXIMUM <= 9 SU all year
017Solids, total suspendedDAILY MX report only all year
017Oil and grease [soxhlet extr.] tot.DAILY MX report only all year
017Aluminum, total recoverableDAILY MX report only all year
017Flow, in conduit or thru treatment plantDAILY MX report only all year
018Oxygen demand, chem. [high level] [COD]DAILY MX report only all year
018pHMINIMUM >= 6.5 SU all year
018pHMAXIMUM <= 9 SU all year
018Solids, total suspendedDAILY MX report only all year
018Oil and grease [soxhlet extr.] tot.DAILY MX report only all year
018Aluminum, total recoverableDAILY MX report only all year
018Flow, in conduit or thru treatment plantDAILY MX report only all year
019Oxygen demand, chem. [high level] [COD]DAILY MX report only all year
019pHMINIMUM >= 6.5 SU all year
019pHMAXIMUM <= 9 SU all year
019Solids, total suspendedDAILY MX report only all year
019Oil and grease [soxhlet extr.] tot.DAILY MX report only all year
019Aluminum, total recoverableDAILY MX report only all year
019Flow, in conduit or thru treatment plantDAILY MX report only all year
01ApHMINIMUM >= 6.5 SU all year
01ApHMAXIMUM <= 9 SU all year
01ASolids, total suspendedDAILY MX <= 100 mg/L all year
01ASolids, total suspendedMO AVG report only all year
01ASolids, total suspendedDAILY MX report only all year
01ASolids, total suspendedMO AVG <= 30 mg/L all year
01AOil and grease [soxhlet extr.] tot.DAILY MX <= 20 mg/L all year
01AOil and grease [soxhlet extr.] tot.MO AVG <= 15 mg/L all year
01ASulfate, total [as SO4]DAILY MX report only all year
01ASulfate, total [as SO4]MO AVG report only all year
01AChlorideDAILY MX report only all year
01AChlorideMO AVG report only all year
01AFlow, in conduit or thru treatment plantDAILY MX report only all year
01AFlow, in conduit or thru treatment plantMO AVG report only all year
01AChlorides + SulfatesDAILY MX report only all year
01AChlorides + SulfatesMO AVG report only all year
020Temperature, water deg. fahrenheitDAILY MX <= 90 deg F all year
020Temperature, water deg. fahrenheitMO AVG report only all year
BWWIron, total recoverableDAILY MX <= 1000 ug/L all year
BWWIron, total recoverableMO AVG <= 1000 ug/L all year
BWWBoron, total recoverableDAILY MX <= 3377 ug/L all year
BWWBoron, total recoverableMO AVG <= 1683 ug/L all year
BWWCopper, total recoverableDAILY MX <= 1000 ug/L all year
BWWCopper, total recoverableMO AVG <= 1000 ug/L all year
BWWFlow, in conduit or thru treatment plantDAILY MX report only all year
BWWFlow, in conduit or thru treatment plantMO AVG report only all year
BWWToxicity [acute], Ceriodaphnia dubiaVALUE <= 1 toxic all year
BWWToxicity [acute], Pimephales promelas [Fathead Minnow]VALUE <= 1 toxic all year
INApHMINIMUM report only all year
INApHMAXIMUM report only all year
INASolids, total suspendedDAILY MX report only all year
INASolids, total suspendedMO AVG report only all year
INAAluminum, total recoverableDAILY MX report only all year
INAAluminum, total recoverableMO AVG report only all year
INACopper, total recoverableDAILY MX report only all year
INACopper, total recoverableMO AVG report only all year
INAFlow, in conduit or thru treatment plantDAILY MX report only all year
INAFlow, 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