Clean Water Act discharge permit · NPDES TXR1598UP

18744 SHADOW CANYON DR, Helotes, TX: NPDES TXR1598UP discharge permit, effluent exceedances, inspections, penalties

EffectivePermit status
MinorDischarger class
0Pollutants under a numeric limit
0Pollutants with an effluent exceedance
0Inspections on file
0Formal enforcement actions

18744 SHADOW CANYON DR, held by Janus Custom Homes, LLC, holds NPDES permit TXR1598UP, which discharges to Los Reyes Creek. EPA’s file records it issued May 19, 2025 and expiring March 4, 2028.

18744 SHADOW CANYON DR, Helotes, Texas: Coverage under a general permit TXR1598UP, held by Janus Custom Homes, LLC; Construction stormwater; Effective; issued May 19, 2025, term to March 4, 2028; discharges to LOS REYES CREEK.

Texas holds 23,986 Construction stormwater coverages of this permit type in EPA’s file; 13,434 were issued before TXR1598UP. Janus Custom Homes, LLC holds 2 permits in Texas.

Other permits held by Janus Custom Homes, LLC

PEDRO & SAMANTHA GUTIERREZ - 23140 ADAMS CROSSING, San Antonio: TXR1553RH, issued June 26, 2024

Coverages issued nearest TXR1598UP

May 19, 2025: PRAIRIE RIDGE ADDITION, Temple, TXR1539UQ, held by Joladi Ventures, LLC Dba Tierra Homes
May 19, 2025: CITY OF PFLUGERVILLE MALLARD POND PARK, Pflugerville, TXR1592UP, held by G. Creek Inc.
May 19, 2025: LTISD EDUCATIONAL FACILITIES CAMPUS PHASE 1, Spicewood, TXR1593UP, held by Liberty Civil Construction, LLC
May 19, 2025: HCMUD 62 WATER PLANT NO 2 C&G, Katy, TXR1595UP, held by DL Glover, Inc.
May 19, 2025: CHIPOTLE GESSNER, Houston, TXR1596UP, held by Wyatt Management, Corporation
May 19, 2025: LAKEVIEW CENTENNIAL HIGH SCHOOL, Garland, TXR1599UP, held by Lee Lewis Construction, Inc.
May 20, 2025: OAKBERRY TRAILS - HOME BUILDING, Waller, TXR1540UQ, held by Lennar Homes of Texas Land and Construction, Ltd.
May 20, 2025: SOUTHWEST FORD PRO, Hudson Oaks, TXR1542UQ, held by Steve Wier, Inc.
May 20, 2025: HABITAT VILLAGE, Denton, TXR1543UQ, held by Habitat For Humanity of Denton County, Inc.
May 20, 2025: TXDOT ODA CSJ 0076-07-40 UPTON COUNTY, Rankin, TXR1544UQ, held by Texas Department of Transportation

18744 SHADOW CANYON DR among its neighbors

EPA’s permit file holds 43 discharge permits in the Lower Culebra Creek subwatershed (HUC 121003020404), TXR1598UP among them. Its county holds 2,157, 12 of them major permits; TXR1598UP is a minor permit.

Other permits in the Lower Culebra Creek subwatershed (HUC 121003020404)

11311 NINA RIDGE - BLACKBUCK RANCH, San Antonio: TXR1504WW, minor permit, discharging to HELOTES CREEK, permit term to March 4, 2028
22811 HOMESTEAD MESA, San Antonio: TXR1504TK, minor permit, discharging to HELOTES CREEK, permit term to March 4, 2028
ALVIDREZ RESIDENCE, San Antonio: TXR1529WZ, minor permit, discharging to EDWARDS AQUIFER, permit term to March 4, 2028
APOLLO OAKS, San Antonio: TXR1527WX, minor permit, discharging to LEON CREEK WHICH RUNS INTO MEDINA RIVER, permit term to March 4, 2028
APOLLO OAKS, San Antonio: TXR1576UX, minor permit, discharging to HELOTES CREEK, permit term to March 4, 2028
APOLLO OAKS, Helotes: TXR1599UF, minor permit, discharging to HELOTES CREEK, permit term to March 4, 2028
BANDERA RANCH TOWNHOMES, San Antonio: TXR1592TE, minor permit, discharging to HELOTES CREEK, permit term to March 4, 2028
CACTUS TRAIL APARTMENTS, San Antonio: TXR1515YX, minor permit, discharging to LOWER LEON CREEK, permit term to March 4, 2028
CACTUS TRAILS, San Antonio: TXR1520XY, minor permit, discharging to HELOTES CREEK, permit term to March 4, 2028
CANYONS AT SCENIC LOOP LINWOOD RIDGE, San Antonio: TXR1519UT, minor permit, discharging to GUADALUPE RIVER, permit term to March 4, 2028

What the register holds for 18744 SHADOW CANYON DR: its NPDES ID, its permit type and status, its dates, its address in Helotes, Texas, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES TXR1598UP.

Identity

Facility as filed	18744 SHADOW CANYON DR
Permittee as filed	Janus Custom Homes, LLC
NPDES ID	TXR1598UP
Permit status	Effective
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Program	Construction stormwater
Issued	May 19, 2025
Expiration date	March 4, 2028
Address	Helotes, TX 78023
Receiving water	LOS REYES CREEK
Subwatershed	Lower Culebra Creek (HUC 121003020404)

Effluent limits and exceedances

0Pollutants on file
0Under a numeric limit
0With a violation of any kind
0With an effluent exceedance

EPA’s limits and effluent violation files hold no pollutant row for NPDES TXR1598UP.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES TXR1598UP.

Inspections

EPA’s inspection file holds no inspection for NPDES TXR1598UP.

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 TXR1598UP.

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, TXR1598UP.

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Nearby on the register

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

The 18744 SHADOW CANYON DR storm water construction permit (NPDES ID TXR1598UP) sits among 1,788 storm water construction permits in Bexar County, and it is one of 43 NPDES permits in the Lower Culebra Creek subwatershed, this one included. Of the 1,787 storm water construction permits in Bexar County, 49.9% were issued earlier than this one, and the county's permits show a 0.2% share with a violation on file, while this permit has no pollutants under a numeric limit and no effluent exceedances recorded.