Clean Water Act discharge permit · NPDES KYR004843
MARKWEST HYDROCARBONS, LLC - LANGLEY, Langley, KY: NPDES KYR004843 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 6Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
MARKWEST HYDROCARBONS, LLC - LANGLEY holds NPDES permit KYR004843. EPA’s file records it issued June 23, 2025 and expiring July 31, 2028. 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.
What the register holds for MARKWEST HYDROCARBONS, LLC - LANGLEY: its NPDES ID, its permit type and status, its dates, its address in Langley, Kentucky, and 6 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES KYR004843.
Identity
| Facility as filed | MARKWEST HYDROCARBONS, LLC - LANGLEY |
|---|---|
| Permittee as filed | MARKWEST HYDROCARBONS, LLC - LANGLEY |
| NPDES ID | KYR004843 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | June 23, 2025 |
| Expiration date | July 31, 2028 |
| Address | Langley, KY 41645 |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Lower Right Fork Beaver Creek (HUC 050702030103) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 6Pollutants on file
- 6Under a numeric limit
- 0With 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 |
|---|---|---|---|---|---|
| pH | 2 | 0 | 0 | ||
| Solids, total suspended | 2 | 0 | 0 | ||
| Oil & Grease | 2 | 0 | 0 | ||
| Surfactants [MBAS] | 2 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 0 | 0 | ||
| Chemical Oxygen Demand [COD] | 2 | 0 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES KYR004843.
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 KYR004843.
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
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, KYR004843.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
How we handle your data → Privacy
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 KYR004843 there.
Nearby on the register
- Discharge permits in Langley
- Every permit record in Langley, A to Z
- Discharge permits in Kentucky
- Every permit record in Kentucky, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.