Clean Water Act discharge permit · NPDES TXR05GV77

CONROE HMA, Conroe, TX: NPDES TXR05GV77 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
13Pollutants under a numeric limit
0Pollutants with an effluent exceedance
0Inspections on file
0Formal enforcement actions

CONROE HMA, held by G&S ASPHALT, INC., holds NPDES permit TXR05GV77. EPA’s file records it issued October 24, 2025 and expiring August 13, 2026.

CONROE HMA, Conroe, Texas: Coverage under a general permit TXR05GV77, held by G&S ASPHALT, INC.; Industrial stormwater; Administratively continued (past its expiration date and still in force until reissued); issued October 24, 2025, term to August 13, 2026.

Solids, total suspended: 4 limits, 0 violations of any kind, 0 effluent exceedances.
Arsenic, total [as As]: 4 limits, 0 violations of any kind, 0 effluent exceedances.
Barium, total [as Ba]: 4 limits, 0 violations of any kind, 0 effluent exceedances.
Cadmium, total [as Cd]: 4 limits, 0 violations of any kind, 0 effluent exceedances.
Chromium, total [as Cr]: 4 limits, 0 violations of any kind, 0 effluent exceedances.
Copper, total [as Cu]: 4 limits, 0 violations of any kind, 0 effluent exceedances.
Lead, total [as Pb]: 4 limits, 0 violations of any kind, 0 effluent exceedances.
Manganese, total [as Mn]: 4 limits, 0 violations of any kind, 0 effluent exceedances.
Nickel, total [as Ni]: 4 limits, 0 violations of any kind, 0 effluent exceedances.
Silver, total [as Ag]: 4 limits, 0 violations of any kind, 0 effluent exceedances.
Zinc, total [as Zn]: 4 limits, 0 violations of any kind, 0 effluent exceedances.
Selenium, total [as Se]: 4 limits, 0 violations of any kind, 0 effluent exceedances.
Mercury, total [as Hg]: 4 limits, 0 violations of any kind, 0 effluent exceedances.

Texas holds 8,480 Industrial stormwater coverages of this permit type in EPA’s file; 7,244 were issued before TXR05GV77. G&S ASPHALT, INC. holds 11 permits in Texas.

Other permits held by G&S ASPHALT, INC.

HUNTSVILLE HMA, Huntsville: TXR05GV74, issued October 24, 2025
CONROE CONSTRUCTION OFFICE, Conroe: TXR05GV75, issued October 24, 2025
MONTGOMERY HMA, Montgomery: TXR05GV76, issued October 24, 2025
CLEVELAND HMA, Cleveland: TXR05GV78, issued October 24, 2025
LOCKWOOD HMA, Houston: TXR05GV79, issued October 24, 2025
ROSENBERG HMA, Rosenberg: TXR05GV80, issued October 24, 2025
RICHMOND CONSTRUCTION OFFICE, Richmond: TXR05GV81, issued October 24, 2025
HOCKLEY HMA, Waller: TXR05GV82, issued October 24, 2025
BAYTOWN HMP, Baytown: TXR05GY27, issued February 10, 2026
GREENSPORT HMP, Houston: TXR05HB38, issued July 23, 2026

Coverages issued nearest TXR05GV77

October 23, 2025: FAB INDUSTRIES, Houston, TXR05GV72, held by FAB Industries, Inc.
October 23, 2025: DB PRECISION, Houston, TXRNECO63, held by D.B. Precision Company, Inc.
October 24, 2025: HUNTSVILLE HMA, Huntsville, TXR05GV74, held by G&S ASPHALT, INC.
October 24, 2025: CONROE CONSTRUCTION OFFICE, Conroe, TXR05GV75, held by G&S ASPHALT, INC.
October 24, 2025: MONTGOMERY HMA, Montgomery, TXR05GV76, held by G&S ASPHALT, INC.
October 24, 2025: CLEVELAND HMA, Cleveland, TXR05GV78, held by G&S ASPHALT, INC.
October 24, 2025: LOCKWOOD HMA, Houston, TXR05GV79, held by G&S ASPHALT, INC.
October 24, 2025: ROSENBERG HMA, Rosenberg, TXR05GV80, held by G&S ASPHALT, INC.
October 24, 2025: RICHMOND CONSTRUCTION OFFICE, Richmond, TXR05GV81, held by G&S ASPHALT, INC.
October 24, 2025: HOCKLEY HMA, Waller, TXR05GV82, held by G&S ASPHALT, INC.

CONROE HMA among its neighbors

EPA’s permit file holds 96 discharge permits in the Crystal Creek subwatershed (HUC 120401010403), TXR05GV77 among them. Its county holds 1,439, 16 of them major permits; TXR05GV77 is a minor permit.

Other permits in the Crystal Creek subwatershed (HUC 120401010403)

A-1 HOMES, Conroe: TXR1568OC, minor permit, discharging to WEST FORK OF CRYSTAL CREEK, permit term to March 4, 2028
AMERITEX HDPE, Conroe: TXR1564QZ, minor permit, discharging to EAST FORK CRYSTAL CREEK, permit term to March 4, 2028
ARCOSA CONROE, Conroe: TXR1577YT, minor permit, discharging to WEST FORK CRYSTAL CREEK, permit term to March 4, 2028
ASM - WILLIS, Willis: TXR05GQ72, minor permit, permit term to August 13, 2026
BRIGHT MORNING STAR PLACE, Conroe: TXR1522TI, minor permit, discharging to WEST FORK OF CRYSTAL CREEK, permit term to March 4, 2028
BUILDERS FIRSTSOURCE TRUSS PLANT CNS, Conroe: TXR1598MF, minor permit, permit term to March 4, 2028
CANEY MILLS PHASE 3 DETENTION & MASS GRADING, Conroe: TXR1523OI, minor permit, discharging to UNNAMED TRIBUTARY, permit term to March 4, 2028
CANEY MILLS SEC 9, Conroe: TXR1503YN, minor permit, discharging to CANEY CREEK, permit term to March 4, 2028
CANEY MILLS SUBDIVISION, Conroe: TXR1555EK, minor permit, discharging to CANEY CREEK, permit term to March 4, 2023
CANEY MILLS SUBDIVISION, Conroe: TXR1591OC, minor permit, discharging to CANEY CREEK, permit term to March 4, 2028

What the register holds for CONROE HMA: its NPDES ID, its permit type and status, its dates, its address in Conroe, Texas, and 13 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES TXR05GV77.

Identity

Facility as filed	CONROE HMA
Permittee as filed	G&S ASPHALT, INC.
NPDES ID	TXR05GV77
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Program	Industrial stormwater
Issued	October 24, 2025
Expiration date	August 13, 2026
Address	Conroe, TX 77306
Subwatershed	Crystal Creek (HUC 120401010403)

Effluent limits and exceedances

13Pollutants on file
13Under a numeric limit
0With a violation of any kind
0With an effluent exceedance

An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.

Pollutant or measure	Limits	Violations, any kind	Effluent exceedances	Latest exceedance	Largest exceedance, as filed
Solids, total suspended	4	0	0
Arsenic, total [as As]	4	0	0
Barium, total [as Ba]	4	0	0
Cadmium, total [as Cd]	4	0	0
Chromium, total [as Cr]	4	0	0
Copper, total [as Cu]	4	0	0
Lead, total [as Pb]	4	0	0
Manganese, total [as Mn]	4	0	0
Nickel, total [as Ni]	4	0	0
Silver, total [as Ag]	4	0	0
Zinc, total [as Zn]	4	0	0
Selenium, total [as Se]	4	0	0
Mercury, total [as Hg]	4	0	0

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES TXR05GV77.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES TXR05GV77.

Inspections

EPA’s inspection file holds no inspection for NPDES TXR05GV77.

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 TXR05GV77.

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Nearby on the register

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

CONROE HMA, a minor discharger in Conroe, Texas, holds NPDES permit TXR05GV77 under coverage of a general permit for industrial stormwater, held by G&S ASPHALT, INC., with a status of administratively continued. The page lists 13 pollutants under a numeric limit and 0 pollutants with an effluent exceedance, with the permit issued October 24, 2025 and expiring August 13, 2026. EPA's files record no effluent or single-event violation for this permit, and the subwatershed is Crystal Creek (HUC 120401010403).