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Clean Water Act discharge permit · NPDES TXR040035

COLLIN COUNTY MS4, Mckinney, TX: NPDES TXR040035 discharge permit, effluent exceedances, inspections, penalties

COLLIN COUNTY MS4, held by Collin County, holds NPDES permit TXR040035, which discharges to Wilson Creek. EPA’s file records it issued October 30, 2023 and expiring January 23, 2024. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

What the register holds for COLLIN COUNTY MS4: its NPDES ID, its permit type and status, its dates, its address in Mckinney, Texas, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES TXR040035.

Identity

Facility as filedCOLLIN COUNTY MS4
Permittee as filedCollin County
NPDES IDTXR040035
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
ProgramSmall municipal storm sewer systems
IssuedOctober 30, 2023
Expiration dateJanuary 23, 2024
Issuing agencyTCEQ
AddressMckinney, TX 75071
Receiving waterWILSON CREEK
SubwatershedBig Willow Creek-Walnut Creek (HUC 120701010502)
SIC9111 – Executive Offices

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES TXR040035.

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 TXR040035.

Inspections

EPA’s inspection file holds no inspection for NPDES TXR040035.

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 TXR040035.

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, TXR040035.

Start the watch

How often?
  • One permit holder — $99/month
  • One watershed — $2,990/year
  • One state — $4,990/year
  • The whole register — $18,000/year

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 TXR040035 there.

COLLIN COUNTY MS4, Mckinney, Texas: Coverage under a general permit TXR040035, held by Collin County; Small municipal storm sewer systems; Administratively continued (past its expiration date and still in force until reissued); issued October 30, 2023, term to January 23, 2024, by TCEQ; discharges to WILSON CREEK.

Texas holds 199 Small municipal storm sewer systems coverages of this permit type in EPA’s file; 153 were issued before TXR040035.

Coverages issued nearest TXR040035

COLLIN COUNTY MS4 among its neighbors

8 discharge permits are in the Big Willow Creek-Walnut Creek subwatershed (HUC 120701010502); TXR040035 is one. Its county: 1,523, 14 major; TXR040035 is minor permit.

Other permits in the Big Willow Creek-Walnut Creek subwatershed (HUC 120701010502)

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

What this page shows

COLLIN COUNTY MS4 is one of 5 storm water small MS4s permits on EPA's NPDES register in Collin County. Of all 5 storm water small MS4s permits in Collin County, 80.0% have an earlier issue date than this permit.