Clean Water Act discharge permit · NPDES PAG035019
NABORS DRILLING USA LP, Clearfield, PA: NPDES PAG035019 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 6Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
- 2Inspections on file
- 0Formal enforcement actions
NABORS DRILLING USA LP, held by NABORS DRILLING USA INC, holds NPDES permit PAG035019, which discharges to Unt To Wolf Run. EPA’s file records it issued May 27, 2025 and expiring March 23, 2028.
NABORS DRILLING USA LP, Clearfield, Pennsylvania: Coverage under a general permit PAG035019, held by NABORS DRILLING USA INC; Effective; issued May 27, 2025, term to March 23, 2028, by State Environmental Organization; discharges to UNT To Wolf Run.
- Oxygen demand, chem. [high level] [COD]: 3 limits, 9 violations of any kind, 0 effluent exceedances.
- pH: 3 limits, 9 violations of any kind, 0 effluent exceedances.
- Solids, total suspended: 3 limits, 9 violations of any kind, 0 effluent exceedances.
- Oil & Grease: 3 limits, 9 violations of any kind, 0 effluent exceedances.
- Nitrogen, total [as N]: 3 limits, 9 violations of any kind, 0 effluent exceedances.
- Phosphorus, total [as P]: 3 limits, 9 violations of any kind, 0 effluent exceedances.
- April 13, 2026: Reconnaissance without Sampling (S).
- February 5, 2026: Notice of Violation (State).
- January 30, 2026: Reporting Violations - Failure to Submit DMRs (ST6).
- January 30, 2026: Reconnaissance without Sampling (S).
NABORS DRILLING USA LP among its neighbors
EPA’s permit file holds 16 discharge permits in the Curwensville Dam-West Branch Susquehanna River subwatershed (HUC 020502010408), PAG035019 among them. Its county holds 85, 0 of them major permits; PAG035019 is a minor permit.
Other permits in the Curwensville Dam-West Branch Susquehanna River subwatershed (HUC 020502010408)
- BUTLER 2 MINE, Clearfield: PA0243485, minor permit, discharging to Unnamed Stream, permit term to February 17, 2024
- CENTRE CONCRETE COMPANY, INC, Clearfield: PAR214822, minor permit, discharging to UNT TO WEST BRANCH SUSQUEHANNA RIV, permit term to October 31, 2012
- CLEARFIELD MUN AUTH., Lawrence, Township Of: PAL026310, minor permit, permit term to December 31, 2025
- CONTINENTAL CARBONIC PRODUCTS INC CLEARFIELD PLANT, Clearfield: PAG034844, minor permit, discharging to West Branch Susquehanna River, permit term to March 23, 2028
- CURWENSVILLE MUNICIPAL AUTHORI, Curwensville: PAL024759, minor permit, permit term to December 31, 2025
- FERNCLIFF GFCC, Clearfield: PA0269883, minor permit, discharging to Hartshorn Run, permit term to August 30, 2022
- NOVEY RECYLING INC, Clearfield: PAG035006, minor permit, discharging to Moose Creek, permit term to March 23, 2028
- NOVEY RECYLING INC, Clearfield: PAR604847, minor permit, discharging to Moose Creek, permit term to June 30, 2016
- RISHEL 1 MINE, Clearfield: PA0242985, minor permit, discharging to UNT To West Branch Susquehanna River, permit term to November 9, 2021
- RJ CORMAN RR SW, Clearfield: PAG034932, minor permit, discharging to West Branch Susquehanna River, permit term to March 23, 2028
Identity
| Facility as filed | NABORS DRILLING USA LP |
|---|---|
| Permittee as filed | NABORS DRILLING USA INC |
| NPDES ID | PAG035019 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | May 27, 2025 |
| Expiration date | March 23, 2028 |
| Issuing agency | State Environmental Organization |
| Address | Clearfield, PA 16830 |
| Receiving water | UNT To Wolf Run |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Curwensville Dam-West Branch Susquehanna River (HUC 020502010408) |
Effluent limits and exceedances
- 6Pollutants on file
- 6Under a numeric limit
- 6With a violation of any kind
- 0With 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 |
|---|---|---|---|---|---|
| Oxygen demand, chem. [high level] [COD] | 3 | 9 | 0 | ||
| pH | 3 | 9 | 0 | ||
| Solids, total suspended | 3 | 9 | 0 | ||
| Oil & Grease | 3 | 9 | 0 | ||
| Nitrogen, total [as N] | 3 | 9 | 0 | ||
| Phosphorus, total [as P] | 3 | 9 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES PAG035019.
Inspections, violations and enforcement
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| January 30, 2026 | Reporting Violations - Failure to Submit DMRs | ST6 |
Inspections
| Date | What EPA recorded | Agency |
|---|---|---|
| April 13, 2026 | Reconnaissance without Sampling | S |
| January 30, 2026 | Reconnaissance without Sampling | S |
Formal enforcement and penalties
0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.
Informal enforcement
| Date | What EPA recorded | Agency |
|---|---|---|
| February 5, 2026 | Notice of Violation | State |
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.