Energy Harbor Nuclear Corporation

NPDES permit OH0063461 · 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

0values over a limit
0required values missing, on 0 form(s)
0of 55 forms filed late

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

Reporting

Reports are due about 20 days after each monitoring period ends (the most common figure among OH permits in EPA's filings — check your permit).

Limits in force (51)

OutfallParameterStatisticLimitMonths
004Temperature, water deg. fahrenheitMO AVG report only all year
004Temperature, water deg. fahrenheitDAILY MX report only all year
004pHDAILY MN >= 6.5 SU all year
004pHDAILY MX <= 9 SU all year
004Oxidants, total residualDAILY MX report only 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
004Chlorine, total residualDAILY MX report only all year
004Mercury, total low levelMO AVG <= 6.4 ng/L all year
004Mercury, total low levelDAILY MX <= 1700 ng/L all year
004Mercury, total low levelMO AVG <= .0021 kg/d all year
004Mercury, total low levelDAILY MX <= .57 kg/d all year
004Chlorination durationDAILY MX report only all year
094Temperature, water deg. fahrenheitMO AVG report only all year
094Temperature, water deg. fahrenheitDAILY MX report only all year
094pHDAILY MN >= 6.5 SU all year
094pHDAILY MX <= 9 SU all year
094Oxidants, total residualDAILY MX report only all year
094Flow, in conduit or thru treatment plantMO AVG report only all year
094Flow, in conduit or thru treatment plantDAILY MX report only all year
094Chlorine, total residualDAILY MX report only all year
094Mercury, total low levelMO AVG <= 6.4 ng/L all year
094Mercury, total low levelDAILY MX <= 1700 ng/L all year
094Mercury, total low levelMO AVG <= .0021 kg/d all year
094Mercury, total low levelDAILY MX <= .57 kg/d all year
094Chlorination durationMO AVG report only all year
094Chlorination durationDAILY MX report only all year
601pHDAILY MN report only all year
601pHDAILY MX report only all year
601Solids, total suspendedMO AVG <= 30 mg/L all year
601Solids, total suspendedDAILY MX <= 100 mg/L all year
601Oil and grease, hexane extr methodMO AVG <= 15 mg/L all year
601Oil and grease, hexane extr methodDAILY MX <= 20 mg/L all year
601Flow, in conduit or thru treatment plantMO AVG report only all year
601Flow, in conduit or thru treatment plantDAILY MX report only all year
603pHDAILY MN report only all year
603pHDAILY MX report only all year
603Solids, total suspendedMO AVG <= 30 mg/L all year
603Solids, total suspendedDAILY MX <= 100 mg/L all year
603Oil and grease, hexane extr methodMO AVG <= 15 mg/L all year
603Oil and grease, hexane extr methodDAILY MX <= 20 mg/L all year
603Flow, in conduit or thru treatment plantMO AVG report only all year
603Flow, in conduit or thru treatment plantDAILY MX report only all year
603Solids, total dissolved- 180 deg. CMO AVG report only Mar, Jun, Sep, Dec
603Solids, total dissolved- 180 deg. CDAILY MX report only Mar, Jun, Sep, Dec
800Temperature, water deg. fahrenheitMO AVG report only all year
800Temperature, water deg. fahrenheitDAILY MX report only all year
800Flow, in conduit or thru treatment plantMO AVG report only all year
800Flow, in conduit or thru treatment plantDAILY MX report only all year
800Mercury, total low levelMO AVG report only all year
800Mercury, total low levelDAILY 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