Clean Water Act discharge permit · NPDES VA0020974
HAMILTON SEWAGE TREATMENT PLANT, Hamilton, VA: NPDES VA0020974 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 13Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
HAMILTON SEWAGE TREATMENT PLANT, held by Hamilton Sewage Treatment Plant, holds NPDES permit VA0020974, which discharges to Catoctin Creek. EPA’s file records it issued August 31, 2016 and expiring September 30, 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 | HAMILTON SEWAGE TREATMENT PLANT |
|---|---|
| Permittee as filed | Hamilton Sewage Treatment Plant |
| NPDES ID | VA0020974 |
| 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 | August 31, 2016 |
| Expiration date | September 30, 2021 |
| Issuing agency | STATE |
| Address | Hamilton, VA 22068 |
| Receiving water | Catoctin Creek |
| Subwatershed | South Fork Catoctin Creek (HUC 020700080301) |
| NAICS | 221320 – Sewage Treatment Facilities |
| 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
- 14Pollutants on file
- 13Under a numeric limit
- 7With a violation of any kind
- 7With 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] | 2 | 44 | 44 | May 31, 2025 | 938% over the limit |
| Solids, total suspended | 4 | 22 | 22 | September 30, 2019 | 172% over the limit |
| BOD, 5-day, 20 deg. C | 4 | 19 | 19 | August 31, 2024 | 177% over the limit |
| Copper, total recoverable | 2 | 13 | 12 | December 31, 2024 | 75% over the limit |
| E. coli | 1 | 4 | 4 | May 31, 2025 | 99,999% over the limit |
| Chlorine, total residual | 0 | 2 | 2 | May 31, 1990 | 100% over the limit |
| Flow, in conduit or thru treatment plant | 2 | 1 | 1 | May 31, 1990 | 8% over the limit |
| pH | 2 | 0 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 0 | 0 | ||
| Nitrogen, total [as N] | 1 | 0 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 1 | 0 | 0 | ||
| Nitrite + Nitrate total [as N] | 1 | 0 | 0 | ||
| Phosphorus, total [as P] | 1 | 0 | 0 | ||
| Hardness, total [as CaCO3] | 1 | 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
- 2Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| June 23, 2026 | Permit Violations - Violation Specified in Comment | ST6 |
| May 17, 2018 | Effluent Violations - Unapproved Bypass | 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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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 VA0020974 there.
Nearby on the register
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- Every permit record in Hamilton, A to Z
- Discharge permits in Virginia
- Every permit record in Virginia, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.