Hayden Heights Mhp
5501 Cosgray Rd, Dublin, OH 43016 · Franklin County · Publicly Owned Treatment Works
- Average flow
- 0.02 MGD
- Design flow
- 0.04 MGD
- NPDES permit
- OH0136051
- Effective
- Permit expires
- July 2029
- Population served
- —
- CWNS 2022
Hayden Heights Mhp is a publicly owned wastewater treatment plant in Dublin, Franklin County, Ohio treating an average of 0.02 million gallons per day against a permitted design capacity of 0.04 MGD. It discharges under NPDES permit OH0136051 (effective), which expires in July 2029, with 21 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in July 2026.
Treatment technology
Treatment structures and unit processes at Hayden Heights Mhp.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 21
- Effluent violations
- 21
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
EPA enforcement history
Federal civil enforcement cases, compliance inspections and informal actions recorded for Hayden Heights Mhp in EPA's ICIS system.
- Formal actions
- 1
- 1 since FY2020
- Compliance actions
- $39,520
- required by EPA orders
- EPA inspections
- 1
- latest Jun 2024
Latest case · Jul 2026
Hayden Heights MHP | AOC
Administrative order · CWA, NPDES Permit Violations · Final Order Issued · Compliance actions $39,520
Source: EPA ECHO, civil enforcement case 05-2026-0328.
Full case history with a free Klarifi account
Every action against Hayden Heights Mhp with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
Decision-makers at Hayden Heights Mhp.
No verified contacts on file yet
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Powell · 8 mi away
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Powell · 9 mi away
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Marysville · 9 mi away
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Marysville · 9 mi away
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Hayden Heights Mhp: frequently asked questions
Sources and methodology
Flow, permit and violation figures come from the EPA's ICIS-NPDES discharge monitoring records. Population served comes from the Clean Watersheds Needs Survey 2022. Treatment structures are identified by Klarifi's review of aerial imagery, and capital improvement projects are extracted from published municipal budget documents. Violations are counted over the last three years of monitoring reports.
Data refreshed October 26, 2026; facility record last updated September 6, 2024.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Equalization tank · Centrate · all terms