Clean Water Act discharge permit · NPDES OH0119075
ROCKY FORK LAKE WWTP, Hillsboro, OH: NPDES OH0119075 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 38Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
ROCKY FORK LAKE WWTP, held by Highland Co Brd of Comm, holds NPDES permit OH0119075, which discharges to Rocky Fork Creek. EPA’s file records it issued November 26, 2019 and expiring December 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 | ROCKY FORK LAKE WWTP |
|---|---|
| Permittee as filed | Highland Co Brd of Comm |
| NPDES ID | OH0119075 |
| 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 |
| Program | Combined sewer overflows |
| Issued | November 26, 2019 |
| Expiration date | December 31, 2024 |
| Address | Hillsboro, OH 45133 |
| Receiving water | Rocky Fork Creek |
| Subwatershed | Headwaters Rocky Fork (HUC 050600030503) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 39Pollutants on file
- 38Under a numeric limit
- 24With 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] | 12 | 28 | 4 | May 31, 2024 | 174% over the limit |
| Phosphorus, total [as P] | 8 | 20 | 4 | June 30, 2026 | 228% over the limit |
| Coliform, fecal MF, MFC broth, 44.5 C | 0 | 4 | 4 | August 31, 2007 | 99,999% over the limit |
| Solids, total suspended | 6 | 27 | 3 | December 31, 2019 | 66% over the limit |
| Oxygen, dissolved [DO] | 3 | 15 | 2 | May 31, 2022 | 8% over the limit |
| E. coli, MTEC-MF | 6 | 21 | 1 | May 31, 2017 | 157% over the limit |
| pH | 8 | 32 | 0 | ||
| Temperature, water deg. centigrade | 6 | 24 | 0 | ||
| BOD, carbonaceous [5 day, 20 C] | 6 | 24 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 8 | 8 | 0 | ||
| Nitrite + Nitrate total [as N] | 6 | 8 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 8 | 0 | ||
| Mercury, total low level | 2 | 8 | 0 | ||
| Overflows | 2 | 8 | 0 | ||
| Chromium, hexavalent dissolved [as Cr] | 2 | 6 | 0 | ||
| Nickel, total recoverable | 2 | 4 | 0 | ||
| Zinc, total recoverable | 2 | 4 | 0 | ||
| Cadmium, total recoverable | 2 | 4 | 0 | ||
| Lead, total recoverable | 2 | 4 | 0 | ||
| Chromium, total recoverable | 2 | 4 | 0 | ||
| Copper, total recoverable | 2 | 4 | 0 | ||
| Potassium, in bottom deposits | 2 | 2 | 0 | ||
| Solids, total dissolved- 180 deg. C | 2 | 2 | 0 | ||
| Oil and grease, hexane extr method | 1 | 2 | 0 | ||
| Nitrogen, ammonia in bottom deposits | 2 | 0 | 0 | ||
| Phosphorous, total, in bottom deposits | 2 | 0 | 0 | ||
| Hardness, total [as CaCO3] | 2 | 0 | 0 | ||
| Biosolids weight indluding admixtures | 2 | 0 | 0 | ||
| Sludge weight, dry | 2 | 0 | 0 | ||
| Arsenic, dry weight | 1 | 0 | 0 | ||
| Cadmium, in bottom deposits [dry wgt] | 1 | 0 | 0 | ||
| Copper in bottom deposits [dry wgt] | 1 | 0 | 0 | ||
| Lead, total dry weight [as Pb] | 1 | 0 | 0 | ||
| Nickel, tot in bottom deposits [dry wgt] | 1 | 0 | 0 | ||
| Zinc in bottom deposits [dry wgt] | 1 | 0 | 0 | ||
| Selenium, dry weight | 1 | 0 | 0 | ||
| Fecal coliform in sludge, CFU/gram | 1 | 0 | 0 | ||
| Mercury, tot in bot deposits [dry wgt] | 1 | 0 | 0 | ||
| Molybdenum, sludge, total, dry weight [as Mo] | 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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES OH0119075.
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 September 15, 2026.