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Clean Water Act discharge permit · NPDES TXR1522WA

MERCER 7, Dallas, TX: NPDES TXR1522WA discharge permit, effluent exceedances, inspections, penalties

MERCER 7, held by The Ridgemont Company, holds NPDES permit TXR1522WA, which discharges to Elm Fork Trinity River Below Lewisville Lake. EPA’s file records it issued October 1, 2025 and expiring March 4, 2028.

MERCER 7, Dallas, Texas: Coverage under a general permit TXR1522WA, held by The Ridgemont Company; Construction stormwater; Effective; issued October 1, 2025, term to March 4, 2028; discharges to ELM FORK TRINITY RIVER BELOW LEWISVILLE LAKE.

Texas holds 23,986 Construction stormwater coverages of this permit type in EPA’s file; 16,180 were issued before TXR1522WA. The Ridgemont Company holds 20 permits in Texas.

Other permits held by The Ridgemont Company

Coverages issued nearest TXR1522WA

MERCER 7 among its neighbors

EPA’s permit file holds 86 discharge permits in the Farmers Branch-Elm Fork Trinity River subwatershed (HUC 120301031005), TXR1522WA among them. Its county holds 1,595, 15 of them major permits; TXR1522WA is a minor permit.

Other permits in the Farmers Branch-Elm Fork Trinity River subwatershed (HUC 120301031005)

What the register holds for MERCER 7: its NPDES ID, its permit type and status, its dates, its address in Dallas, Texas, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES TXR1522WA.

Identity

Facility as filedMERCER 7
Permittee as filedThe Ridgemont Company
NPDES IDTXR1522WA
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedOctober 1, 2025
Expiration dateMarch 4, 2028
AddressDallas, TX 75234
Receiving waterELM FORK TRINITY RIVER BELOW LEWISVILLE LAKE
SubwatershedFarmers Branch-Elm Fork Trinity River (HUC 120301031005)

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES TXR1522WA.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES TXR1522WA.

Inspections

EPA’s inspection file holds no inspection for NPDES TXR1522WA.

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 TXR1522WA.

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, TXR1522WA.

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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

MERCER 7, a Storm Water Construction coverage held by The Ridgemont Company in Dallas, Texas, is one of 640 storm water construction permits in Dallas County, and the county's 0.0% violation rate across those 640 permits places it among peers with no violations on file. Within the Farmers Branch-Elm Fork Trinity River subwatershed, it is one of 86 NPDES permits, and 64.6% of the 638 storm water construction permits in Dallas County were issued earlier than its October 1, 2025 date.