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Clean Water Act discharge permit · NPDES OH0010413

HAMILTON MUNICIPAL POWER PLT, Hamilton, OH: NPDES OH0010413 discharge permit, effluent exceedances, inspections, penalties

HAMILTON MUNICIPAL POWER PLT, held by Hamilton Municipal Electric Plant, holds NPDES permit OH0010413, which discharges to Great Miami River. EPA’s file records it issued December 11, 2015 and expiring July 31, 2020. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filedHAMILTON MUNICIPAL POWER PLT
Permittee as filedHamilton Municipal Electric Plant
NPDES IDOH0010413
Permit statusEffective
Permit typeIndividual permit
Discharger classMajor discharger
Facility typeNot a publicly owned treatment works
IssuedDecember 11, 2015
Expiration dateJuly 31, 2020
AddressHamilton, OH 45011
Receiving waterGreat Miami River
Receiving water impaired303(D) Listed
SubwatershedBanklick Creek-Great Miami River (HUC 050800020902)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.

Pollutant or measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
Solids, total suspended103434July 31, 201444,612% over the limit
pH161111January 31, 2015
Oil and grease, hexane extr method655March 31, 2014150% over the limit
Copper, total recoverable2222May 31, 201114% over the limit
Temperature, water deg. centigrade2411July 31, 20063% over the limit
Flow, in conduit or thru treatment plant2600
Chlorine, total residual600
Phosphorus, total [as P]400
Nickel, total recoverable400
Zinc, total recoverable400
Chlorination duration400
Barium, total recoverable200

Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES OH0010413.

Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.

Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.

Watch this permit

One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, OH0010413.

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  • One state — $4,990/year
  • The whole register — $18,000/year

How we handle your data → Privacy

EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID OH0010413 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.