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Clean Water Act discharge permit · NPDES TXR1597WA

LAS SYSTEMS GROUNDWATER & CHEMICAL IMPROVEMENTS PACKAGE 1, Houston, TX: NPDES TXR1597WA discharge permit, effluent exceedances, inspections, penalties

LAS SYSTEMS GROUNDWATER & CHEMICAL IMPROVEMENTS PACKAGE 1, held by Mc2 Civil, LLC, holds NPDES permit TXR1597WA, which discharges to White Oak Bayou Above Tidal. EPA’s file records it issued October 6, 2025 and expiring March 4, 2028.

LAS SYSTEMS GROUNDWATER & CHEMICAL IMPROVEMENTS PACKAGE 1, Houston, Texas: Coverage under a general permit TXR1597WA, held by Mc2 Civil, LLC; Construction stormwater; Effective; issued October 6, 2025, term to March 4, 2028; discharges to WHITE OAK BAYOU ABOVE TIDAL.

Texas holds 23,986 Construction stormwater coverages of this permit type in EPA’s file; 16,258 were issued before TXR1597WA. Mc2 Civil, LLC holds 21 permits in Texas.

Other permits held by Mc2 Civil, LLC

Coverages issued nearest TXR1597WA

LAS SYSTEMS GROUNDWATER & CHEMICAL IMPROVEMENTS PACKAGE 1 among its neighbors

EPA’s permit file holds 309 discharge permits in the Cole Creek-Whiteoak Bayou subwatershed (HUC 120401040302), TXR1597WA among them. Its county holds 4,455, 195 of them major permits; TXR1597WA is a minor permit.

Other permits in the Cole Creek-Whiteoak Bayou subwatershed (HUC 120401040302)

What the register holds for LAS SYSTEMS GROUNDWATER & CHEMICAL IMPROVEMENTS PACKAGE 1: its NPDES ID, its permit type and status, its dates, its address in Houston, Texas, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES TXR1597WA.

Identity

Facility as filedLAS SYSTEMS GROUNDWATER & CHEMICAL IMPROVEMENTS PACKAGE 1
Permittee as filedMc2 Civil, LLC
NPDES IDTXR1597WA
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedOctober 6, 2025
Expiration dateMarch 4, 2028
AddressHouston, TX 77039
Receiving waterWHITE OAK BAYOU ABOVE TIDAL
SubwatershedCole Creek-Whiteoak Bayou (HUC 120401040302)

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES TXR1597WA.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES TXR1597WA.

Inspections

EPA’s inspection file holds no inspection for NPDES TXR1597WA.

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES TXR1597WA.

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, TXR1597WA.

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Nearby on the register

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

What this page shows

The LAS SYSTEMS GROUNDWATER & CHEMICAL IMPROVEMENTS PACKAGE 1 permit is one of 2,031 storm water construction permits on EPA's NPDES register in Harris County, this one included. Of all 2,022 such permits in Harris County (this one included), 63.6% carry an earlier issue date than this permit. The permit reports no pollutants under a numeric limit and no effluent exceedances, and it sits among 309 NPDES permits in the Cole Creek-Whiteoak Bayou subwatershed, this one included.