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Clean Water Act discharge permit · NPDES TXR1572UN

NORTHLAKE - OFFSITE, San Antonio, TX: NPDES TXR1572UN discharge permit, effluent exceedances, inspections, penalties

NORTHLAKE - OFFSITE, held by Keystone Construction Services, LP, holds NPDES permit TXR1572UN, which discharges to Calaveras Reservior. EPA’s file records it issued May 9, 2025 and expiring March 4, 2028.

NORTHLAKE - OFFSITE, San Antonio, Texas: Coverage under a general permit TXR1572UN, held by Keystone Construction Services, LP; Construction stormwater; Effective; issued May 9, 2025, term to March 4, 2028; discharges to CALAVERAS RESERVIOR.

Texas holds 23,986 Construction stormwater coverages of this permit type in EPA’s file; 13,250 were issued before TXR1572UN. Keystone Construction Services, LP holds 6 permits in Texas.

Other permits held by Keystone Construction Services, LP

Coverages issued nearest TXR1572UN

NORTHLAKE - OFFSITE among its neighbors

EPA’s permit file holds 118 discharge permits in the Upper Calaveras Creek subwatershed (HUC 121003010302), TXR1572UN among them. Its county holds 2,157, 12 of them major permits; TXR1572UN is a minor permit.

Other permits in the Upper Calaveras Creek subwatershed (HUC 121003010302)

  • 87 PIT, San Antonio: TXR05FN77, minor permit, permit term to August 13, 2026
  • 9362 HILDEBRANDT, San Antonio: TXR1568QP, minor permit, discharging to CALAVERAS RESERVOIR, permit term to March 4, 2028
  • ALAMO CITY ESS, San Antonio: TXR1596XM, minor permit, discharging to HONDO CREEK, permit term to March 4, 2028
  • ALAMO CITY SUBSTATION ESS, San Antonio: TXR1578WS, minor permit, discharging to SALADO CREEK, permit term to March 4, 2028
  • ANNABELLE RANCH, San Antonio: TXR1564MD, minor permit, discharging to HONDO CREEK, permit term to March 4, 2028
  • BLUE RIDGE - HOME BUILDING, San Antonio: TXR1579UI, minor permit, discharging to CALAVERAS RESERVIOR, permit term to March 4, 2028
  • BLUE RIDGE RANCH, San Antonio: TXR1508VL, minor permit, discharging to UNNAMED TRIBUTARY TO CALAVERAS CREEK TO CALAVERAS, permit term to March 4, 2028
  • BLUE RIDGE RANCH SUBD UNIT 7, San Antonio: TXR1553UF, minor permit, discharging to ROSILLO CREEK 1910B, permit term to March 4, 2028
  • BLUERIDGE RANCH, San Antonio: TXR1590SC, minor permit, discharging to ROSILLO CREEK, permit term to March 4, 2028
  • C&F TOOL & DIE, San Antonio: TXRNEBV90, minor permit, permit term to August 13, 2026

What the register holds for NORTHLAKE - OFFSITE: its NPDES ID, its permit type and status, its dates, its address in San Antonio, Texas, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES TXR1572UN.

Identity

Facility as filedNORTHLAKE - OFFSITE
Permittee as filedKeystone Construction Services, LP
NPDES IDTXR1572UN
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedMay 9, 2025
Expiration dateMarch 4, 2028
AddressSan Antonio, TX 78263
Receiving waterCALAVERAS RESERVIOR
SubwatershedUpper Calaveras Creek (HUC 121003010302)

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES TXR1572UN.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES TXR1572UN.

Inspections

EPA’s inspection file holds no inspection for NPDES TXR1572UN.

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 TXR1572UN.

Watch this permit

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Nearby on the register

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

What this page shows

The NORTHLAKE - OFFSITE storm water construction permit, held by Keystone Construction Services, LP, is one of 1,788 such permits on EPA's NPDES register in Bexar County, Texas. It sits within the Upper Calaveras Creek subwatershed, which holds 118 NPDES permits including this one. Within the county, 49.1% of storm water construction permits carry an earlier issue date than this one, and 0.2% of those 1,788 permits have a violation on file, while this permit has no pollutants under a numeric limit and no effluent exceedances.