Clean Water Act discharge permit · NPDES TXR1586PS

CITY OF LA PORTE - NORTHSIDE DRAINAGE, La Porte, TX: NPDES TXR1586PS discharge permit, effluent exceedances, inspections, penalties

EffectivePermit status
MinorDischarger class
0Pollutants under a numeric limit
0Pollutants with an effluent exceedance

CITY OF LA PORTE - NORTHSIDE DRAINAGE, held by Environmental Allies, LLC, holds NPDES permit TXR1586PS, which discharges to Little Cedar Bayou. EPA’s file records it issued January 30, 2024 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 CITY OF LA PORTE - NORTHSIDE DRAINAGE: its NPDES ID, its permit type and status, its dates, its address in La Porte, Texas, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES TXR1586PS.

Identity

Facility as filed	CITY OF LA PORTE - NORTHSIDE DRAINAGE
Permittee as filed	Environmental Allies, LLC
NPDES ID	TXR1586PS
Permit status	Effective
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Program	Construction stormwater
Issued	January 30, 2024
Expiration date	March 4, 2028
Address	La Porte, TX 77571
Receiving water	LITTLE CEDAR BAYOU
Receiving water impaired	303(D) Listed
Subwatershed	Clear Creek-Frontal Galveston Bay (HUC 120402040100)

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

Effluent limits and exceedances

0Pollutants on file
0Under a numeric limit
0With a violation of any kind
0With an effluent exceedance

EPA’s limits and effluent violation files hold no pollutant row for NPDES TXR1586PS.

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 TXR1586PS.

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, TXR1586PS.

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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 TXR1586PS there.

Nearby on the register

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

The CITY OF LA PORTE - NORTHSIDE DRAINAGE storm water construction permit, TXR1586PS, is one of 2,031 such permits on EPA's NPDES register in Harris County, and 0.1% of those permits have a violation on file. It sits within the Clear Creek-Frontal Galveston Bay subwatershed, which holds 560 NPDES permits including this one, and this permit has no pollutants under a numeric limit or effluent exceedances on record.