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Clean Water Act discharge permit · NPDES WVG671072

MARY PATTERSON LP PL HYDROSTATIC DISCHARGE, Friendly, WV: NPDES WVG671072 discharge permit, effluent exceedances, inspections, penalties

MARY PATTERSON LP PL HYDROSTATIC DISCHARGE, held by ANTERO MIDSTREAM LLC, holds NPDES permit WVG671072, which discharges to Nd/Middle Island Ck/Ohio Rv. EPA’s file records it issued March 28, 2025 and expiring May 11, 2027. 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 MARY PATTERSON LP PL HYDROSTATIC DISCHARGE: its NPDES ID, its permit type and status, its dates, its address in Friendly, West Virginia, its receiving water, and 5 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES WVG671072.

Identity

Facility as filedMARY PATTERSON LP PL HYDROSTATIC DISCHARGE
Permittee as filedANTERO MIDSTREAM LLC
NPDES IDWVG671072
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedMarch 28, 2025
Expiration dateMay 11, 2027
AddressFriendly, WV 26146
Receiving waterND/Middle Island Ck/Ohio Rv
SubwatershedBuffalo Run-Middle Island Creek (HUC 050302010506)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

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 measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
pH200
Solids, total suspended100
Oil & Grease100
Flow, in conduit or thru treatment plant100
Chlorine, total residual100

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES WVG671072.

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

EPA’s single-event violation file, as loaded, holds no violation for NPDES WVG671072.

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 WVG671072 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

What this page shows

This public-records page covers NPDES permit WVG671072, held by ANTERO MIDSTREAM LLC for MARY PATTERSON LP PL HYDROSTATIC DISCHARGE in Friendly, West Virginia, with a status of Effective and a Minor discharger class. The register lists 5 pollutants under a numeric limit and 0 pollutants with an effluent exceedance, and it records no effluent or single-event violation for this permit.