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Evergy, Inc.

Electric Services, major discharger, Kansas City, Missouri. NPDES permit MO0004855, in force until Jan 31, 2027. Last 12 months: over a limit once (last April 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 002 form M monthly (6 values), outfall 005 form M monthly (36 values), outfall 006 form M monthly (40 values), outfall 008 form M monthly (34 values), outfall 04A form M monthly (6 values), outfall 05A form M monthly (38 values), and 6 more forms
Renewal application due
Aug 4, 2026 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 92 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period endingParameterReportedLimit
April 2026pH, maximum9.5≤ 9 SU

Limits in force (190)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year002
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (cfs)all year002
Flow, in conduit or thru treatment plantmonthly averagereport only (cfs)all year002
pHminimum≥ 6 SUall year005
pHmaximum≤ 9 SUall year005
Solids, total suspendeddaily maximum≤ 50 mg/Lall year005
Solids, total suspendedmonthly average≤ 50 mg/Lall year005
Oil and grease [soxhlet extr.] tot.daily maximum≤ 20 mg/Lall year005
Oil and grease [soxhlet extr.] tot.monthly average≤ 15 mg/Lall year005
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year005
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year005
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year005
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year005
Phosphorus, total [as P]daily maximumreport only (mg/L)all year005
Phosphorus, total [as P]monthly averagereport only (mg/L)all year005
Chloride [as Cl]daily maximumreport only (mg/L)all year005
Chloride [as Cl]monthly averagereport only (mg/L)all year005
Sulfate, total [as SO4]daily maximumreport only (mg/L)all year005
Sulfate, total [as SO4]monthly averagereport only (mg/L)all year005
Selenium, total recoverabledaily maximumreport only (ug/L)all year005
Selenium, total recoverablemonthly averagereport only (ug/L)all year005
Thallium, total recoverabledaily maximumreport only (ug/L)all year005
Thallium, total recoverablemonthly averagereport only (ug/L)all year005
Aluminum, total [as Al]daily maximumreport only (ug/L)all year005
Aluminum, total [as Al]monthly averagereport only (ug/L)all year005
Cadmium, total recoverabledaily maximumreport only (ug/L)all year005
Cadmium, total recoverablemonthly averagereport only (ug/L)all year005
Lead, total recoverabledaily maximumreport only (ug/L)all year005
Lead, total recoverablemonthly averagereport only (ug/L)all year005
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year005
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year005
Chlorine, total residualdaily maximum≤ 19 ug/Lall year005
Chlorine, total residualmonthly average≤ 9.5 ug/Lall year005
Nitrogen, Kjeldahl, total [TKN] [water]daily maximumreport only (mg/L)all year005
Nitrogen, Kjeldahl, total [TKN] [water]monthly averagereport only (mg/L)all year005
Toxicity [chronic], Ceriodaphnia dubiavaluereport only (toxic)all year005
Toxicity [chronic], Pimephales promelas [Fathead Minnow]valuereport only (toxic)all year005
Mercury, total recoverabledaily maximumreport only (ug/L)all year005
Mercury, total recoverablemonthly averagereport only (ug/L)all year005
Chlorides + Sulfatesdaily maximumreport only (mg/L)all year005
Chlorides + Sulfatesmonthly averagereport only (mg/L)all year005
Sulfate [as S]daily maximumreport only (mg/L)all year006
Sulfate [as S]monthly averagereport only (mg/L)all year006
pHminimum≥ 6 SUall year006
pHmaximum≤ 9 SUall year006
Solids, total suspendeddaily maximum≤ 100 mg/Lall year006
Solids, total suspendedmonthly average≤ 30 mg/Lall year006
Oil and grease [soxhlet extr.] tot.daily maximum≤ 20 mg/Lall year006
Oil and grease [soxhlet extr.] tot.monthly average≤ 15 mg/Lall year006
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year006
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year006
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year006
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year006
Phosphorus, total [as P]daily maximumreport only (mg/L)all year006
Phosphorus, total [as P]monthly averagereport only (mg/L)all year006
Chloride [as Cl]daily maximumreport only (mg/L)all year006
Chloride [as Cl]monthly averagereport only (mg/L)all year006
Selenium, total recoverabledaily maximumreport only (ug/L)all year006
Selenium, total recoverablemonthly averagereport only (ug/L)all year006
Thallium, total recoverabledaily maximumreport only (ug/L)all year006
Thallium, total recoverablemonthly averagereport only (ug/L)all year006
Aluminum, total recoverabledaily maximumreport only (ug/L)all year006
Aluminum, total recoverablemonthly averagereport only (ug/L)all year006
Cadmium, total recoverabledaily maximumreport only (ug/L)all year006
Cadmium, total recoverablemonthly averagereport only (ug/L)all year006
Lead, total recoverabledaily maximumreport only (ug/L)all year006
Lead, total recoverablemonthly averagereport only (ug/L)all year006
Chromium, hexavalent dissolved [as Cr]daily maximumreport only (ug/L)all year006
Chromium, hexavalent dissolved [as Cr]monthly averagereport only (ug/L)all year006
Chromium, trivalent total recoverabledaily maximumreport only (ug/L)all year006
Chromium, trivalent total recoverablemonthly averagereport only (ug/L)all year006
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year006
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year006
Chlorine, total residualdaily maximumreport only (ug/L)all year006
Chlorine, total residualmonthly averagereport only (ug/L)all year006
Nitrogen, Kjeldahl, total [TKN] [water]daily maximumreport only (mg/L)all year006
Nitrogen, Kjeldahl, total [TKN] [water]monthly averagereport only (mg/L)all year006
Toxicity [chronic], Ceriodaphnia dubiavaluereport only (toxic)all year006
Toxicity [chronic], Pimephales promelas [Fathead Minnow]valuereport only (toxic)all year006
Mercury, total recoverabledaily maximumreport only (ug/L)all year006
Mercury, total recoverablemonthly averagereport only (ug/L)all year006
Chlorides + Sulfatesdaily maximumreport only (mg/L)all year006
Chlorides + Sulfatesmonthly averagereport only (mg/L)all year006
pHminimum≥ 6 SUall year008
pHmaximum≤ 9 SUall year008
Solids, total suspendeddaily maximum≤ 100 mg/Lall year008
Solids, total suspendedmonthly average≤ 30 mg/Lall year008
Oil and grease [soxhlet extr.] tot.daily maximum≤ 20 mg/Lall year008
Oil and grease [soxhlet extr.] tot.monthly average≤ 15 mg/Lall year008
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year008
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year008
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year008
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year008
Phosphorus, total [as P]daily maximumreport only (mg/L)all year008
Phosphorus, total [as P]monthly averagereport only (mg/L)all year008
Selenium, total recoverabledaily maximumreport only (ug/L)all year008
Selenium, total recoverablemonthly averagereport only (ug/L)all year008
Thallium, total recoverabledaily maximumreport only (ug/L)all year008
Thallium, total recoverablemonthly averagereport only (ug/L)all year008
Aluminum, total recoverabledaily maximumreport only (ug/L)all year008
Aluminum, total recoverablemonthly averagereport only (ug/L)all year008
Cadmium, total recoverabledaily maximumreport only (ug/L)all year008
Cadmium, total recoverablemonthly averagereport only (ug/L)all year008
Lead, total recoverabledaily maximumreport only (ug/L)all year008
Lead, total recoverablemonthly averagereport only (ug/L)all year008
Copper, total recoverabledaily maximumreport only (ug/L)all year008
Copper, total recoverablemonthly averagereport only (ug/L)all year008
Chromium, hexavalent dissolved [as Cr]daily maximumreport only (ug/L)all year008
Chromium, hexavalent dissolved [as Cr]monthly averagereport only (ug/L)all year008
Chromium, trivalent total recoverabledaily maximumreport only (ug/L)all year008
Chromium, trivalent total recoverablemonthly averagereport only (ug/L)all year008
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year008
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year008
Nitrogen, Kjeldahl, total [TKN] [water]daily maximumreport only (mg/L)all year008
Nitrogen, Kjeldahl, total [TKN] [water]monthly averagereport only (mg/L)all year008
Toxicity [acute], Ceriodaphnia dubiavaluereport only (toxic)all year008
Toxicity [acute], Pimephales promelas [Fathead Minnow]valuereport only (toxic)all year008
Mercury, total recoverabledaily maximumreport only (ug/L)all year008
Mercury, total recoverablemonthly averagereport only (ug/L)all year008
Oxygen demand, chem. [high level] [COD]daily maximumreport only (mg/L)all year009
pHminimumreport only (SU)all year009
pHmaximumreport only (SU)all year009
Solids, total suspendeddaily maximumreport only (mg/L)all year009
Oil and grease [soxhlet extr.] tot.daily maximumreport only (mg/L)all year009
Selenium, total recoverabledaily maximumreport only (ug/L)all year009
Aluminum, total recoverabledaily maximumreport only (ug/L)all year009
Copper, total recoverabledaily maximumreport only (ug/L)all year009
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year009
Flow, in conduit or thru treatment plantvaluereport only (cfs)all year009
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year04A
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year04A
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year04A
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year04A
Flow, in conduit or thru treatment plantdaily maximumreport only (cfs)all year04A
Flow, in conduit or thru treatment plantmonthly averagereport only (cfs)all year04A
pHminimum≥ 6 SUall year05A
pHmaximum≤ 9 SUall year05A
Solids, total suspendeddaily maximum≤ 50 mg/Lall year05A
Solids, total suspendedmonthly average≤ 50 mg/Lall year05A
Oil and grease [soxhlet extr.] tot.daily maximum≤ 20 mg/Lall year05A
Oil and grease [soxhlet extr.] tot.monthly average≤ 15 mg/Lall year05A
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year05A
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year05A
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year05A
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year05A
Phosphorus, total [as P]daily maximumreport only (mg/L)all year05A
Phosphorus, total [as P]monthly averagereport only (mg/L)all year05A
Chloride [as Cl]daily maximumreport only (mg/L)all year05A
Chloride [as Cl]monthly averagereport only (mg/L)all year05A
Sulfate, total [as SO4]daily maximumreport only (mg/L)all year05A
Sulfate, total [as SO4]monthly averagereport only (mg/L)all year05A
Selenium, total recoverabledaily maximumreport only (ug/L)all year05A
Selenium, total recoverablemonthly averagereport only (ug/L)all year05A
Thallium, total recoverabledaily maximumreport only (ug/L)all year05A
Thallium, total recoverablemonthly averagereport only (ug/L)all year05A
Aluminum, total recoverabledaily maximumreport only (ug/L)all year05A
Aluminum, total recoverablemonthly averagereport only (ug/L)all year05A
Cadmium, total recoverabledaily maximumreport only (ug/L)all year05A
Cadmium, total recoverablemonthly averagereport only (ug/L)all year05A
Lead, total recoverabledaily maximumreport only (ug/L)all year05A
Lead, total recoverablemonthly averagereport only (ug/L)all year05A
Copper, total recoverabledaily maximumreport only (ug/L)all year05A
Copper, total recoverablemonthly averagereport only (ug/L)all year05A
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year05A
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year05A
Chlorine, total residualdaily maximum≤ 19 ug/Lall year05A
Chlorine, total residualmonthly average≤ 9.5 ug/Lall year05A
Nitrogen, Kjeldahl, total [TKN] [water]daily maximumreport only (mg/L)all year05A
Nitrogen, Kjeldahl, total [TKN] [water]monthly averagereport only (mg/L)all year05A
Toxicity [chronic], Ceriodaphnia dubiavaluereport only (toxic)all year05A
Toxicity [chronic], Pimephales promelas [Fathead Minnow]valuereport only (toxic)all year05A
Mercury, total recoverabledaily maximumreport only (ug/L)all year05A
Mercury, total recoverablemonthly averagereport only (ug/L)all year05A
Chlorides + Sulfatesdaily maximumreport only (mg/L)all year05A
Chlorides + Sulfatesmonthly averagereport only (mg/L)all year05A
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all yearCOL
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all yearCOL
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all yearCOL
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all yearCOL
Flow ratedaily maximumreport only (cfs)all yearCOL
Flow ratemonthly averagereport only (cfs)all yearCOL
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all yearCOL
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearCOL
Flow, in conduit or thru treatment plantdaily maximumreport only (cfs)all yearCOL
Flow, in conduit or thru treatment plantmonthly averagereport only (cfs)all yearCOL
Temp. diff. between intake and dischargedaily maximum≤ 19.1 deg Fall yearCOL
Temp. diff. between intake and dischargemonthly averagereport only (deg F)all yearCOL

How strict are these limits?

Cited limits by parameter: Missouri's rules and the federal ones.

Same industry: the 29 Electric Services permits in Missouri.

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