Clean Water Act discharge permit · NPDES OH0134945
HAMDEN WWTP, Hamden, OH: NPDES OH0134945 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 37Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
HAMDEN WWTP, held by Hamden, Village of, holds NPDES permit OH0134945, which discharges to Sand Run. EPA’s file records it issued December 15, 2016 and expiring December 31, 2021. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | HAMDEN WWTP |
|---|---|
| Permittee as filed | Hamden, Village of |
| NPDES ID | OH0134945 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | December 15, 2016 |
| Expiration date | December 31, 2021 |
| Address | Hamden, OH 45634 |
| Receiving water | Sand Run |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Headwaters Little Raccoon Creek (HUC 050901010401) |
| Program components on file | Biosolids, POTW |
| SIC | 4952 – Sewerage Systems |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 37Pollutants on file
- 37Under a numeric limit
- 37With a violation of any kind
- 6With 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 | 49 | 45 | August 31, 2021 | 1,460% over the limit |
| Solids, total suspended | 6 | 40 | 34 | July 31, 2026 | 422% over the limit |
| E. coli, MTEC-MF | 2 | 23 | 23 | July 31, 2026 | 2,460% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 6 | 14 | 8 | April 30, 2022 | 233% over the limit |
| pH | 2 | 4 | 2 | June 30, 2026 | |
| Oxygen, dissolved [DO] | 1 | 2 | 1 | August 31, 2016 | 18% over the limit |
| Biosolids weight indluding admixtures | 4 | 4 | 0 | ||
| Sludge waste from secondary clarifiers | 4 | 4 | 0 | ||
| Temperature, water deg. centigrade | 2 | 2 | 0 | ||
| Oil and grease [soxhlet extr.] tot. | 2 | 2 | 0 | ||
| Nitrogen, ammonia in bottom deposits | 2 | 2 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 2 | 2 | 0 | ||
| Phosphorus, total [as P] | 2 | 2 | 0 | ||
| Phosphorous, total, in bottom deposits | 2 | 2 | 0 | ||
| Potassium, in bottom deposits | 2 | 2 | 0 | ||
| Nickel, total recoverable | 2 | 2 | 0 | ||
| Zinc, total recoverable | 2 | 2 | 0 | ||
| Cadmium, total recoverable | 2 | 2 | 0 | ||
| Lead, total recoverable | 2 | 2 | 0 | ||
| Chromium, total recoverable | 2 | 2 | 0 | ||
| Copper, total recoverable | 2 | 2 | 0 | ||
| Rainfall | 2 | 2 | 0 | ||
| Flow, maximum during 24 hr period | 2 | 2 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 2 | 0 | ||
| Mercury, total low level | 2 | 2 | 0 | ||
| Sludge weight, dry | 2 | 2 | 0 | ||
| Overflows | 2 | 2 | 0 | ||
| Arsenic, dry weight | 1 | 1 | 0 | ||
| Cadmium, in bottom deposits [dry wgt] | 1 | 1 | 0 | ||
| Copper in bottom deposits [dry wgt] | 1 | 1 | 0 | ||
| Lead, total dry weight [as Pb] | 1 | 1 | 0 | ||
| Nickel, tot in bottom deposits [dry wgt] | 1 | 1 | 0 | ||
| Zinc in bottom deposits [dry wgt] | 1 | 1 | 0 | ||
| Selenium, dry weight | 1 | 1 | 0 | ||
| Fecal coliform in sludge, CFU/gram | 1 | 1 | 0 | ||
| Mercury, tot in bot deposits [dry wgt] | 1 | 1 | 0 | ||
| Molybdenum, sludge, total, dry weight [as Mo] | 1 | 1 | 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
- 2Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| August 1, 2025 | Permit Violations - Violation Specified in Comment | ST6 |
| March 26, 2021 | WW SSO - Failure to monitor | 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.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.