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Clean Water Act discharge permit · NPDES TXR1593VF

CORVAC COMPOSITES, San Marcos, TX: NPDES TXR1593VF discharge permit, effluent exceedances, inspections, penalties

CORVAC COMPOSITES, held by Staunch Construction LLC, holds NPDES permit TXR1593VF, which discharges to Cottonwood Creek. EPA’s file records it issued July 16, 2025 and expiring March 4, 2028.

CORVAC COMPOSITES, San Marcos, Texas: Coverage under a general permit TXR1593VF, held by Staunch Construction LLC; Construction stormwater; Effective; issued July 16, 2025, term to March 4, 2028; discharges to COTTONWOOD CREEK.

Texas holds 23,986 Construction stormwater coverages of this permit type in EPA’s file; 14,586 were issued before TXR1593VF.

Coverages issued nearest TXR1593VF

CORVAC COMPOSITES among its neighbors

EPA’s permit file holds 41 discharge permits in the Redwood Cemetery-Cottonwood Creek subwatershed (HUC 121002030305), TXR1593VF among them. Its county holds 410, 3 of them major permits; TXR1593VF is a minor permit.

Other permits in the Redwood Cemetery-Cottonwood Creek subwatershed (HUC 121002030305)

What the register holds for CORVAC COMPOSITES: its NPDES ID, its permit type and status, its dates, its address in San Marcos, Texas, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES TXR1593VF.

Identity

Facility as filedCORVAC COMPOSITES
Permittee as filedStaunch Construction LLC
NPDES IDTXR1593VF
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedJuly 16, 2025
Expiration dateMarch 4, 2028
AddressSan Marcos, TX 78666
Receiving waterCOTTONWOOD CREEK
SubwatershedRedwood Cemetery-Cottonwood Creek (HUC 121002030305)

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES TXR1593VF.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES TXR1593VF.

Inspections

EPA’s inspection file holds no inspection for NPDES TXR1593VF.

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 TXR1593VF.

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, TXR1593VF.

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Nearby on the register

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

What this page shows

CORVAC COMPOSITES, a storm water construction coverage in San Marcos, Hays County, Texas, is one of 336 such permits in the county, and 51.8% of those 336 were issued before its July 16, 2025 date. Among the 41 NPDES permits in the Redwood Cemetery-Cottonwood Creek subwatershed, this one included, it sits within a group that shares the same watershed, and 0.6% of the county's 336 storm water construction permits carry a violation on file, while this permit has none of the recorded numeric-limit or effluent exceedance entries.