Clean Water Act discharge permit · NPDES OH0141909
HURON VALLEY MHP, Plymouth, OH: NPDES OH0141909 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 13Pollutants under a numeric limit
- 2Pollutants with an effluent exceedance
HURON VALLEY MHP, held by Huron Valley MHP, holds NPDES permit OH0141909, which discharges to Ut Of Marsh Run. EPA’s file records it issued December 18, 2018 and expiring January 31, 2024. 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 filed | HURON VALLEY MHP |
|---|---|
| Permittee as filed | Huron Valley MHP |
| NPDES ID | OH0141909 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | December 18, 2018 |
| Expiration date | January 31, 2024 |
| Address | Plymouth, OH 44865 |
| Receiving water | UT of Marsh Run |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Marsh Run (HUC 041000120401) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 18Pollutants on file
- 13Under a numeric limit
- 17With a violation of any kind
- 2With an effluent exceedance
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 measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 8 | 50 | 10 | April 30, 2020 | 293% over the limit |
| Solids, total suspended | 4 | 44 | 4 | December 31, 2017 | 365% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 4 | 40 | 0 | ||
| Temperature, water deg. centigrade | 2 | 24 | 0 | ||
| Turbidity [severity] | 2 | 24 | 0 | ||
| Flow rate | 0 | 22 | 0 | ||
| pH | 2 | 20 | 0 | ||
| Color, spectrophoto-metric filter | 0 | 18 | 0 | ||
| Odor, atmospheric [severity] | 0 | 18 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 10 | 0 | ||
| Chlorine, total residual | 1 | 6 | 0 | ||
| Coliform, fecal MF, MFC broth, 44.5 C | 0 | 6 | 0 | ||
| Sludge waste from secondary clarifiers | 2 | 4 | 0 | ||
| Nitrite + Nitrate total [as N] | 2 | 2 | 0 | ||
| Phosphorus, total [as P] | 2 | 2 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 2 | 0 | ||
| Biosolids weight indluding admixtures | 0 | 2 | 0 | ||
| E. coli, MTEC-MF | 2 | 0 | 0 |
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
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| December 22, 2023 | Permit Violations - Failure to Submit Timely Permit Renewal Application | ST6 |
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, OH0141909.
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- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
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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 OH0141909 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.