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Clean Water Act discharge permit · NPDES TXR1528SY

CORE SCIENTIFIC DATA CENTER EXPANSION, Denton, TX: NPDES TXR1528SY discharge permit, effluent exceedances, inspections, penalties

CORE SCIENTIFIC DATA CENTER EXPANSION, held by T5 Construction, Llc, holds NPDES permit TXR1528SY, which discharges to Dry Fork Hickory Creek To Hickory Creek To Lewisvi. EPA’s file records it issued December 6, 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 CORE SCIENTIFIC DATA CENTER EXPANSION: its NPDES ID, its permit type and status, its dates, its address in Denton, Texas, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES TXR1528SY.

Identity

Facility as filedCORE SCIENTIFIC DATA CENTER EXPANSION
Permittee as filedT5 Construction, Llc
NPDES IDTXR1528SY
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedDecember 6, 2024
Expiration dateMarch 4, 2028
AddressDenton, TX 76207
Receiving waterDRY FORK HICKORY CREEK TO HICKORY CREEK TO LEWISVI
SubwatershedUpper Hickory Creek (HUC 120301030803)

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 TXR1528SY.

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 TXR1528SY.

Inspections

EPA’s inspection file holds no inspection for NPDES TXR1528SY.

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 TXR1528SY.

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, TXR1528SY.

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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 TXR1528SY there.

CORE SCIENTIFIC DATA CENTER EXPANSION, Denton, Texas: Coverage under a general permit TXR1528SY, held by T5 Construction, Llc; Construction stormwater; Effective; issued December 6, 2024, term to March 4, 2028; discharges to DRY FORK HICKORY CREEK TO HICKORY CREEK TO LEWISVI.

Texas holds 23,986 Construction stormwater coverages of this permit type in EPA’s file; 10,454 were issued before TXR1528SY.

Coverages issued nearest TXR1528SY

CORE SCIENTIFIC DATA CENTER EXPANSION among its neighbors

EPA’s permit file holds 64 discharge permits in the Upper Hickory Creek subwatershed (HUC 120301030803), TXR1528SY among them. Its county holds 1,238, 16 of them major permits; TXR1528SY is a minor permit.

Other permits in the Upper Hickory Creek subwatershed (HUC 120301030803)

Nearby on the register

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

What this page shows

The CORE SCIENTIFIC DATA CENTER EXPANSION storm water construction permit in Denton County is one of 1,007 such permits in that county, and only 0.5% of those permits have a violation on file. Of those 1,007 permits, 31.3% were issued before this one, which was issued on December 6, 2024. The permit sits among 64 NPDES permits in the Upper Hickory Creek subwatershed, and it has no pollutants under a numeric limit and no effluent exceedances on record.