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Clean Water Act discharge permit · NPDES TXR1592WN

T100-00-00-X003 - X064 - BARKER RESERVOIR WATERSHE, Katy, TX: NPDES TXR1592WN discharge permit, effluent exceedances, inspections, penalties

T100-00-00-X003 - X064 - BARKER RESERVOIR WATERSHE, held by Environmental Allies, LLC, holds NPDES permit TXR1592WN, which discharges to Mason Creek. EPA’s file records it issued November 21, 2025 and expiring March 4, 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 T100-00-00-X003 - X064 - BARKER RESERVOIR WATERSHE: its NPDES ID, its permit type and status, its dates, its address in Katy, Texas, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES TXR1592WN.

Identity

Facility as filedT100-00-00-X003 - X064 - BARKER RESERVOIR WATERSHE
Permittee as filedEnvironmental Allies, LLC
NPDES IDTXR1592WN
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedNovember 21, 2025
Expiration dateMarch 4, 2028
AddressKaty, TX 77450
Receiving waterMASON CREEK
SubwatershedBarker Reservoir-Buffalo Bayou (HUC 120401040104)

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

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES TXR1592WN.

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 TXR1592WN.

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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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 TXR1592WN there.

Nearby on the register

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

What this page shows

The T100-00-00-X003 - X064 - BARKER RESERVOIR WATERSHE storm water construction permit, held by Environmental Allies, LLC in Katy, Texas, is one of 2,031 such permits on EPA's NPDES register in Harris County, and 0.1% of those permits carry a violation on file. It sits within the Barker Reservoir-Buffalo Bayou subwatershed, which holds 113 NPDES permits, and it records no pollutants under a numeric limit and no effluent exceedances.