Clean Water Act discharge permit · NPDES OH0010863
RMI TITANIUM COMPANY LLC, Niles, OH: NPDES OH0010863 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 25Pollutants under a numeric limit
- 13Pollutants with an effluent exceedance
RMI TITANIUM COMPANY LLC, held by RMI Titanium Co, holds NPDES permit OH0010863, which discharges to Mahoning River. EPA’s file records it issued January 8, 2024 and expiring January 31, 2029. 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 | RMI TITANIUM COMPANY LLC |
|---|---|
| Permittee as filed | RMI Titanium Co |
| NPDES ID | OH0010863 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | January 8, 2024 |
| Expiration date | January 31, 2029 |
| Address | Niles, OH 44446 |
| Receiving water | Mahoning River |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | City of Warren-Mahoning River (HUC 050301030603) |
| SIC | 3356 – Nonferrous Rolling And Drawing |
| Other EPA IDs (FRS) | RCRA handler OHD004228631; ICIS-AIR source OH0000000278060189 |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 28Pollutants on file
- 25Under a numeric limit
- 28With a violation of any kind
- 13With 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 |
|---|---|---|---|---|---|
| pH, maximum | 1 | 96 | 84 | November 30, 2023 | |
| BOD, carbonaceous [5 day, 20 C] | 8 | 155 | 81 | July 31, 2026 | 948% over the limit |
| Solids, total suspended | 12 | 145 | 71 | May 31, 2026 | 23,233% over the limit |
| Coliform, fecal MF, MFC broth, 44.5 C | 0 | 56 | 34 | October 31, 2022 | 99,999% over the limit |
| Zinc, total recoverable | 10 | 81 | 33 | January 31, 2026 | 827% over the limit |
| pH, minimum | 1 | 38 | 26 | June 30, 2025 | |
| Oil and grease [soxhlet extr.] tot. | 0 | 25 | 25 | October 31, 2014 | 360% over the limit |
| Copper, total recoverable | 10 | 28 | 18 | January 31, 2026 | 336% over the limit |
| E. coli, MTEC-MF | 2 | 14 | 12 | May 31, 2026 | 2,043% over the limit |
| Cyanide, total [as CN] | 4 | 59 | 11 | December 31, 2025 | 179% over the limit |
| Fluoride, total [as F] | 4 | 57 | 9 | May 31, 2026 | 57% over the limit |
| Oil and grease, hexane extr method | 4 | 56 | 8 | February 28, 2026 | 80% over the limit |
| pH | 4 | 50 | 2 | May 31, 1998 | |
| Nitrogen, ammonia total [as N] | 6 | 72 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 48 | 0 | ||
| Temperature, water deg. centigrade | 2 | 24 | 0 | ||
| Turbidity [severity] | 2 | 24 | 0 | ||
| Solids, total dissolved- 180 deg. C | 2 | 24 | 0 | ||
| Lead, total recoverable | 4 | 16 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 2 | 6 | 0 | ||
| Nitrite + Nitrate total [as N] | 2 | 6 | 0 | ||
| Phosphorus, total [as P] | 2 | 6 | 0 | ||
| Iron, total recoverable | 2 | 6 | 0 | ||
| Aluminum, total recoverable | 2 | 6 | 0 | ||
| Mercury, total low level | 2 | 6 | 0 | ||
| Di[2-ethylhexyl] phthalate [DEHP] | 0 | 6 | 0 | ||
| Chlorine, total residual | 2 | 3 | 0 | ||
| Sludge waste from secondary clarifiers | 2 | 2 | 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 OH0010863.
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
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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 OH0010863 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.