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Clean Water Act discharge permit · NPDES TXR05GV47

MAPEI SOUTH, Houston, TX: NPDES TXR05GV47 discharge permit, effluent exceedances, inspections, penalties

MAPEI SOUTH, held by Mapei Corporation, holds NPDES permit TXR05GV47. EPA’s file records it issued October 8, 2025 and expiring August 13, 2026.

MAPEI SOUTH, Houston, Texas: Coverage under a general permit TXR05GV47, held by Mapei Corporation; Industrial stormwater; Administratively continued (past its expiration date and still in force until reissued); issued October 8, 2025, term to August 13, 2026.

Texas holds 8,480 Industrial stormwater coverages of this permit type in EPA’s file; 7,194 were issued before TXR05GV47.

Coverages issued nearest TXR05GV47

MAPEI SOUTH among its neighbors

EPA’s permit file holds 112 discharge permits in the Carpenters Bayou subwatershed (HUC 120401040702), TXR05GV47 among them. Its county holds 4,455, 195 of them major permits; TXR05GV47 is a minor permit.

Other permits in the Carpenters Bayou subwatershed (HUC 120401040702)

What the register holds for MAPEI SOUTH: its NPDES ID, its permit type and status, its dates, its address in Houston, Texas. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES TXR05GV47.

Identity

Facility as filedMAPEI SOUTH
Permittee as filedMapei Corporation
NPDES IDTXR05GV47
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramIndustrial stormwater
IssuedOctober 8, 2025
Expiration dateAugust 13, 2026
AddressHouston, TX 77044
SubwatershedCarpenters Bayou (HUC 120401040702)

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES TXR05GV47.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES TXR05GV47.

Inspections

EPA’s inspection file holds no inspection for NPDES TXR05GV47.

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 TXR05GV47.

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, TXR05GV47.

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  • One permit holder — $99/month
  • One watershed — $2,990/year
  • One state — $4,990/year
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Nearby on the register

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

What this page shows

MAPEI SOUTH is one of 1,284 storm water industrial permits in Harris County on EPA's NPDES register, and one of 112 NPDES permits in the Carpenters Bayou subwatershed. The permit has no pollutants under a numeric limit and no pollutants with an effluent exceedance on record.