WESTAR ENERGY

NPDES permit KS0079821 · Minor 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

1values over a limit
0required values missing, on 0 form(s)
0of 72 forms filed late

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

Reporting

Reports are due about 29 days after each monitoring period ends (the most common figure among KS permits in EPA's filings — check your permit).

Limits in force (82)

OutfallParameterStatisticLimitMonths
001ConductivityMO AVG report only all year
001BOD, 5-day, 20 deg. CMO AVG report only all year
001BOD, 5-day, 20 deg. CDAILY MX report only all year
001Phosphorus, total [as P]MO AVG report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Hardness, total [as CaCO3]MO AVG report only all year
001Chloride [as Cl]MO AVG report only all year
001Chloride [as Cl]DAILY MX report only all year
001Sulfate, total [as SO4]MO AVG report only all year
001Sulfate, total [as SO4]DAILY MX report only all year
001Arsenic, total recoverableMO AVG report only all year
001Selenium, total recoverableMO AVG report only all year
001Selenium, total recoverableMO AVG report only all year
001Selenium, total recoverableDAILY MX report only all year
001Thallium, total recoverableMO AVG report only all year
001Beryllium, total recoverable [as Be]MO AVG report only all year
001Nickel, total recoverableMO AVG report only all year
001Silver total recoverableMO AVG report only all year
001Zinc, total recoverableMO AVG report only (alert) all year
001Zinc, total recoverableMO AVG report only all year
001Zinc, total recoverableDAILY MX <= 600 ug/L (alert) all year
001Cadmium, total recoverableMO AVG report only all year
001Lead, total recoverableMO AVG report only all year
001Chromium, total recoverableMO AVG report only all year
001Copper, total recoverableMO AVG report only (alert) all year
001Copper, total recoverableMO AVG report only all year
001Copper, total recoverableDAILY MX <= 80 ug/L (alert) all year
001Antimony, total recoverableMO AVG 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
001Mercury, total [as Hg]MO AVG report only all year
001Mercury, total recoverableMO AVG report only all year
001Mercury, total recoverableDAILY MX report only all year
001LC50 Static 48Hr Acute Ceriodaphnia dubiaDAILY MN >= 100 % all year
001LC50 Static 48Hr Acute Pimephales promelasDAILY MN >= 100 % all year
100pHDAILY MN >= 6 SU all year
100pHDAILY MX <= 9 SU all year
100Solids, total suspendedMO AVG <= 30 mg/L all year
100Solids, total suspendedDAILY MX <= 100 mg/L all year
100Oil & GreaseMO AVG <= 15 mg/L all year
100Oil & GreaseDAILY MX <= 20 mg/L all year
100Phosphorus, total [as P]MO AVG report only all year
100Phosphorus, total [as P]DAILY MX report only all year
100Chloride [as Cl]MO AVG report only all year
100Chloride [as Cl]DAILY MX report only all year
100Sulfate, total [as SO4]MO AVG report only all year
100Sulfate, total [as SO4]DAILY MX report only all year
100Flow, in conduit or thru treatment plantMO AVG report only all year
100Flow, in conduit or thru treatment plantDAILY MX report only all year
101pHDAILY MN >= 6 SU all year
101pHDAILY MX <= 9 SU all year
101Phosphorus, total [as P]MO AVG report only all year
101Phosphorus, total [as P]DAILY MX report only all year
101Zinc, total recoverableMO AVG report only all year
101Zinc, total recoverableDAILY MX report only all year
101Oxidants, free availableMO AVG <= .2 mg/L all year
101Oxidants, free availableDAILY MX <= .5 mg/L all year
101Flow, in conduit or thru treatment plantMO AVG report only all year
101Flow, in conduit or thru treatment plantDAILY MX report only all year
102pHDAILY MN >= 6 SU all year
102pHDAILY MX <= 9 SU all year
102Solids, total suspendedMO AVG <= 30 mg/L all year
102Solids, total suspendedDAILY MX <= 100 mg/L all year
102Oil & GreaseMO AVG <= 15 mg/L all year
102Oil & GreaseDAILY MX <= 20 mg/L all year
102Flow, in conduit or thru treatment plantMO AVG report only all year
102Flow, in conduit or thru treatment plantDAILY MX report only all year
200pHDAILY MN >= 6 SU all year
200pHDAILY MX <= 9 SU all year
200Solids, total suspendedDAILY MX <= 50 mg/L (alert) all year
200Flow, in conduit or thru treatment plantMO AVG report only all year
200Flow, in conduit or thru treatment plantDAILY MX report only all year
201pHDAILY MN >= 6 SU all year
201pHDAILY MX <= 9 SU all year
201Phosphorus, total [as P]MO AVG report only all year
201Phosphorus, total [as P]DAILY MX report only all year
201Zinc, total recoverableMO AVG report only all year
201Zinc, total recoverableDAILY MX <= 1000 ug/L all year
201Oxidants, free availableMO AVG <= .2 mg/L all year
201Oxidants, free availableDAILY MX <= .5 mg/L all year
201Flow, in conduit or thru treatment plantMO AVG report only all year
201Flow, in conduit or thru treatment plantDAILY MX 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