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Clean Water Act discharge permit · NPDES OH0145629

HOLY TRINITY SCHOOL, Avon, OH: NPDES OH0145629 discharge permit, effluent exceedances, inspections, penalties

HOLY TRINITY SCHOOL, held by Holy Trinity School and Church, holds NPDES permit OH0145629, which discharges to East Branch Of Heider Ditch. EPA’s file records it issued June 19, 2018 and expiring July 31, 2023. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filedHOLY TRINITY SCHOOL
Permittee as filedHoly Trinity School and Church
NPDES IDOH0145629
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedJune 19, 2018
Expiration dateJuly 31, 2023
AddressAvon, OH 44011
Receiving waterEast Branch of Heider Ditch
Receiving water impaired303(D) Listed
SubwatershedHeider Ditch-Frontal Lake Erie (HUC 041100010603)

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
Nitrogen, ammonia total [as N]8113December 31, 2016219% over the limit
Solids, total suspended4102March 31, 201422% over the limit
BOD, carbonaceous [5 day, 20 C]480
Flow rate260
Turbidity [severity]260
pH240
E. coli, MTEC-MF240
Oxygen, dissolved [DO]120
Chlorine, total residual120
Sludge waste from secondary clarifiers200

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 OH0145629.

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, OH0145629.

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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 OH0145629 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.