Evergy, Inc.

NPDES permit MO0004898 · Major NON-POTW · expired, expires 2025-06-30 · EPA's file as of 2026-09-19

Check this month's numbers before you file

This permit expired on 2025-06-30 and is expired: 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

0values over a limit
0required values missing, on 0 form(s)
0of 61 forms filed late

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

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 (78)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheitDAILY MX report only all year
001Temperature, water deg. fahrenheitMO AVG report only all year
001Oxygen demand, chem. [high level] [COD]DAILY MX report only all year
001Oxygen demand, chem. [high level] [COD]MO AVG report only all year
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedDAILY MX <= 100 mg/L 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
001Nitrogen, ammonia total [as N]DAILY MX report only all year
001Nitrogen, ammonia total [as N]MO AVG report only all year
001Nitrite + Nitrate total [as N]DAILY MX report only all year
001Nitrite + Nitrate total [as N]MO AVG report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Phosphorus, total [as P]MO AVG report only all year
001Iron, total recoverableDAILY MX report only all year
001Iron, total recoverableMO AVG report only all year
001Thallium, total [as Tl]DAILY MX report only all year
001Thallium, total [as Tl]MO AVG report only all year
001Copper, total recoverableDAILY MX <= 73.8 ug/L all year
001Copper, total recoverableMO 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
001Nitrogen, Kjeldahl, total [TKN] [water]DAILY MX report only all year
001Nitrogen, Kjeldahl, total [TKN] [water]MO AVG report only all year
001Toxicity [chronic], Ceriodaphnia dubiaVALUE report only all year
001Toxicity [chronic], Pimephales promelas [Fathead Minnow]VALUE report only all year
002Oxygen demand, chem. [high level] [COD]DAILY MX report only all year
002Oxygen demand, chem. [high level] [COD]MO AVG report only all year
002pHMINIMUM >= 6 SU all year
002pHMAXIMUM <= 9 SU all year
002Solids, total suspendedDAILY MX <= 50 mg/L all year
002Solids, total suspendedMO AVG <= 30 mg/L all year
002Oil and grease [soxhlet extr.] tot.DAILY MX <= 20 mg/L all year
002Oil and grease [soxhlet extr.] tot.MO AVG <= 15 mg/L all year
002Nitrogen, ammonia total [as N]DAILY MX report only all year
002Nitrogen, ammonia total [as N]MO AVG report only all year
002Nitrite + Nitrate total [as N]DAILY MX report only all year
002Nitrite + Nitrate total [as N]MO AVG report only all year
002Phosphorus, total [as P]DAILY MX report only all year
002Phosphorus, total [as P]MO 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
002Nitrogen, Kjeldahl, total [TKN] [water]DAILY MX report only all year
002Nitrogen, Kjeldahl, total [TKN] [water]MO AVG report only all year
002Toxicity [chronic], Ceriodaphnia dubiaVALUE report only all year
002Toxicity [chronic], Pimephales promelas [Fathead Minnow]VALUE report only all year
003Temperature, water deg. fahrenheitDAILY MX report only all year
003Temperature, water deg. fahrenheitMO AVG report only all year
003Temperature, water deg. fahrenheitDAILY MX <= 90 deg F all year
003Temperature, water deg. fahrenheitMO AVG report only all year
003Temp. diff. between up/down stream deg. FDAILY MX <= 5 deg F all year
003Temp. diff. between up/down stream deg. FMO 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
003Flow, in conduit or thru treatment plantDAILY 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
003Flow, in conduit or thru treatment plantMO AVG report only all year
01AChlorine, free availableDAILY MX <= 500 ug/L all year
01AChlorine, free availableMO AVG <= 200 ug/L all year
03ApHMINIMUM >= 6 SU all year
03ApHMAXIMUM <= 9 SU all year
03ASolids, total suspendedDAILY MX <= 100 mg/L all year
03ASolids, total suspendedMO AVG <= 30 mg/L all year
03AOil and grease [soxhlet extr.] tot.DAILY MX <= 15 mg/L all year
03AOil and grease [soxhlet extr.] tot.MO AVG <= 10 mg/L all year
03ASulfate, total [as SO4]DAILY MX report only all year
03ASulfate, total [as SO4]MO AVG report only all year
03AIron, total recoverableDAILY MX report only all year
03AIron, total recoverableMO AVG report only all year
03AChlorideDAILY MX report only all year
03AChlorideMO AVG report only all year
03AFlow, in conduit or thru treatment plantDAILY MX report only all year
03AFlow, in conduit or thru treatment plantMO AVG report only all year
03AChlorides + SulfatesDAILY MX report only all year
03AChlorides + SulfatesMO 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