East Kentucky Power Coop - Cooper Station

NPDES permit KY0003611 · Major NON-POTW · effective, expires 2028-09-30 · 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)
2of 65 forms filed late

Last period with anything received: 2026-07-31. Most often over: pH (1).

Reporting

Reports are due about 28 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (119)

OutfallParameterStatisticLimitMonths
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, settleableMO AVG report only all year
001Solids, settleableDAILY MX report only all year
001Oil & GreaseMO AVG <= 10 mg/L all year
001Oil & GreaseDAILY MX <= 15 mg/L 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
003Temperature, water deg. fahrenheitMO AVG report only all year
003Temperature, water deg. fahrenheitDAILY MX <= 100 deg F all year
003pHMINIMUM >= 6 SU all year
003pHMAXIMUM <= 9 SU all year
003Hardness, total [as CaCO3]MO AVG report only all year
003Hardness, total [as CaCO3]DAILY MX report only all year
003Copper, total recoverableMO AVG report only all year
003Copper, total recoverableDAILY MX report only all year
003Oxidants, total residualMO AVG report only all year
003Oxidants, total residualDAILY MX <= .2 mg/L 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
003Chlorine, total residualMO AVG report only all year
003Chlorine, total residualDAILY MX <= .019 mg/L all year
003Chlorine, free availableMO AVG <= .2 mg/L all year
003Chlorine, free availableDAILY MX <= .5 mg/L all year
003Duration of Oxidant AdditionDAILY MX <= 120 min/d all year
003Toxicity, final conc toxicity unitsMAXIMUM <= 1.1 tox chronic all year
004pHMINIMUM >= 6 SU all year
004pHMAXIMUM <= 9 SU all year
004Copper, total [as Cu]MO AVG <= 1 mg/L all year
004Copper, total [as Cu]DAILY MX <= 1 mg/L all year
004Iron, total [as Fe]MO AVG <= 1 mg/L all year
004Iron, total [as Fe]DAILY MX <= 1 mg/L all year
004Flow, in conduit or thru treatment plantMO AVG report only all year
004Flow, in conduit or thru treatment plantDAILY MX report only all year
005pHMINIMUM >= 6 SU all year
005pHMAXIMUM <= 9 SU all year
005Solids, total suspendedMO AVG <= 30 mg/L all year
005Solids, total suspendedDAILY MX <= 60 mg/L all year
005Oil & GreaseMO AVG <= 5 mg/L all year
005Oil & GreaseDAILY MX <= 5 mg/L all year
005Flow, in conduit or thru treatment plantMO AVG report only all year
005Flow, in conduit or thru treatment plantDAILY MX report only all year
006Temperature, water deg. fahrenheitMO AVG report only all year
006Temperature, water deg. fahrenheitDAILY MX report only all year
006Hardness, total [as CaCO3]MO AVG report only all year
006Hardness, total [as CaCO3]DAILY MX report only all year
006Copper, total recoverableMO AVG report only all year
006Copper, total recoverableDAILY MX report only all year
006Flow, in conduit or thru treatment plantMO AVG report only all year
006Flow, in conduit or thru treatment plantDAILY MX report only all year
006Cooling Water Intake InspectionVALUE report only all year
007pHMINIMUM >= 6 SU all year
007pHMAXIMUM <= 9 SU all year
007Solids, settleableMO AVG report only all year
007Solids, settleableDAILY MX report only all year
007Oil & GreaseMO AVG <= 10 mg/L all year
007Oil & GreaseDAILY MX <= 15 mg/L all year
007Flow, in conduit or thru treatment plantMO AVG report only all year
007Flow, in conduit or thru treatment plantDAILY MX report only all year
008pHMINIMUM >= 6 SU all year
008pHMAXIMUM <= 9 SU all year
008Solids, total suspendedMO AVG <= 30 mg/L all year
008Solids, total suspendedDAILY MX <= 91.8 mg/L all year
008Oil & GreaseMO AVG <= 13.4 mg/L all year
008Oil & GreaseDAILY MX <= 17.5 mg/L all year
008Flow, in conduit or thru treatment plantMO AVG 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 suspendedMO AVG <= 30 mg/L all year
009Solids, total suspendedDAILY MX <= 60 mg/L all year
009Oil & GreaseMO AVG <= 10 mg/L all year
009Oil & GreaseDAILY MX <= 15 mg/L all year
009Flow, in conduit or thru treatment plantMO AVG report only all year
009Flow, in conduit or thru treatment plantDAILY MX report only all year
010pHMINIMUM >= 6 SU all year
010pHMAXIMUM <= 9 SU all year
010Solids, total suspendedMO AVG <= 30 mg/L all year
010Solids, total suspendedDAILY MX <= 60 mg/L all year
010Oil & GreaseMO AVG <= 10 mg/L all year
010Oil & GreaseDAILY MX <= 15 mg/L all year
010Flow, in conduit or thru treatment plantMO AVG report only all year
010Flow, in conduit or thru treatment plantDAILY MX report only all year
011pHMINIMUM >= 6 SU all year
011pHMAXIMUM <= 9 SU all year
011Solids, total suspendedMO AVG <= 30 mg/L all year
011Solids, total suspendedDAILY MX <= 60 mg/L all year
011Oil & GreaseMO AVG <= 10 mg/L all year
011Oil & GreaseDAILY MX <= 15 mg/L all year
011Flow, in conduit or thru treatment plantMO AVG report only all year
011Flow, in conduit or thru treatment plantDAILY MX report only all year
012pHMINIMUM >= 6 SU all year
012pHMAXIMUM <= 9 SU all year
012Solids, total suspendedMO AVG <= 30 mg/L all year
012Solids, total suspendedDAILY MX <= 99.6 mg/L all year
012Oil & GreaseMO AVG <= 14.9 mg/L all year
012Oil & GreaseDAILY MX <= 19.9 mg/L all year
012Hardness, total [as CaCO3]MO AVG report only all year
012Hardness, total [as CaCO3]DAILY MX report only all year
012Arsenic, total recoverableMO AVG report only all year
012Arsenic, total recoverableDAILY MX report only all year
012Nickel, total recoverableMO AVG report only all year
012Nickel, total recoverableDAILY MX report only all year
012Silver total recoverableMO AVG report only all year
012Silver total recoverableDAILY MX report only all year
012Zinc, total recoverableMO AVG report only all year
012Zinc, total recoverableDAILY MX report only all year
012Cadmium, total recoverableMO AVG report only all year
012Cadmium, total recoverableDAILY MX report only all year
012Lead, total recoverableMO AVG report only all year
012Lead, total recoverableDAILY MX report only all year
012Chromium, total recoverableMO AVG report only all year
012Chromium, total recoverableDAILY MX report only all year
012Copper, total recoverableMO AVG report only all year
012Copper, total recoverableDAILY MX report only all year
012Flow, in conduit or thru treatment plantMO AVG report only all year
012Flow, in conduit or thru treatment plantDAILY MX report only all year
012Mercury, total recoverableMO AVG report only all year
012Mercury, total recoverableDAILY 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