Clean Water Act discharge permit · NPDES PA0094510
EDGAR THOMSON PLT, Braddock, PA: NPDES PA0094510 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MajorDischarger class
- 18Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
EDGAR THOMSON PLT, held by US STEEL CORP, holds NPDES permit PA0094510, which discharges to Monongahela River. EPA’s file records it issued December 20, 2021 and expiring December 31, 2026. 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 | EDGAR THOMSON PLT |
|---|---|
| Permittee as filed | US STEEL CORP |
| NPDES ID | PA0094510 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | December 20, 2021 |
| Expiration date | December 31, 2026 |
| Issuing agency | State Environmental Organization |
| Address | Braddock, PA 15104 |
| Receiving water | Monongahela River |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Sawmill Run-Turtle Creek (HUC 050200050704) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 18Pollutants on file
- 18Under a numeric limit
- 18With 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 |
|---|---|---|---|---|---|
| Zinc, total [as Zn] | 21 | 34 | 9 | January 31, 2020 | 555% over the limit |
| Lead, total [as Pb] | 19 | 28 | 5 | June 30, 2011 | 233% over the limit |
| pH | 18 | 25 | 4 | January 31, 2023 | |
| Oil & Grease | 12 | 16 | 4 | January 31, 2017 | 237% over the limit |
| Solids, total suspended | 20 | 27 | 3 | September 30, 2014 | 99,999% over the limit |
| Chlorine, total residual | 10 | 11 | 1 | September 30, 2004 | 3% over the limit |
| Flow, in conduit or thru treatment plant | 18 | 20 | 0 | ||
| Nitrogen, ammonia total [as N] | 4 | 8 | 0 | ||
| Cyanide, total [as CN] | 4 | 8 | 0 | ||
| Phenolics, total recoverable | 4 | 8 | 0 | ||
| Aluminum, total [as Al] | 7 | 7 | 0 | ||
| Copper, total [as Cu] | 5 | 5 | 0 | ||
| Temperature, water deg. fahrenheit | 32 | 4 | 0 | ||
| Iron, total [as Fe] | 4 | 4 | 0 | ||
| Fluoride, total [as F] | 2 | 2 | 0 | ||
| Acrylamide | 2 | 2 | 0 | ||
| Oxygen demand, chem. [high level] [COD] | 1 | 1 | 0 | ||
| Manganese, total [as Mn] | 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 |
|---|---|---|
| February 10, 2023 | Permit Violations - Violation Specified in Comment | ST6 |
| July 30, 2020 | Effluent Violations - Numeric effluent violation | 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 PA0094510 there.
Nearby on the register
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.