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Clean Water Act discharge permit · NPDES TXR1546OP

COBBLESTONE SECTION 4, Texas City, TX: NPDES TXR1546OP discharge permit, effluent exceedances, inspections, penalties

COBBLESTONE SECTION 4, held by A & M Contractors, Inc., holds NPDES permit TXR1546OP, which discharges to Galveston County Mud No.31. EPA’s file records it issued October 6, 2023 and expiring March 4, 2028.

COBBLESTONE SECTION 4, Texas City, Texas: Coverage under a general permit TXR1546OP, held by A & M Contractors, Inc.; Construction stormwater; Effective; issued October 6, 2023, term to March 4, 2028; discharges to GALVESTON COUNTY MUD NO.31.

Texas holds 23,986 Construction stormwater coverages of this permit type in EPA’s file; 4,214 were issued before TXR1546OP. A & M Contractors, Inc. holds 10 permits in Texas.

Other permits held by A & M Contractors, Inc.

Coverages issued nearest TXR1546OP

COBBLESTONE SECTION 4 among its neighbors

EPA’s permit file holds 382 discharge permits in the Dickinson Bayou subwatershed (HUC 120402040200), TXR1546OP among them. Its county holds 419, 18 of them major permits; TXR1546OP is a minor permit.

Other permits in the Dickinson Bayou subwatershed (HUC 120402040200)

What the register holds for COBBLESTONE SECTION 4: its NPDES ID, its permit type and status, its dates, its address in Texas City, Texas, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES TXR1546OP.

Identity

Facility as filedCOBBLESTONE SECTION 4
Permittee as filedA & M Contractors, Inc.
NPDES IDTXR1546OP
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedOctober 6, 2023
Expiration dateMarch 4, 2028
AddressTexas City, TX 77591
Receiving waterGALVESTON COUNTY MUD NO.31
SubwatershedDickinson Bayou (HUC 120402040200)

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES TXR1546OP.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES TXR1546OP.

Inspections

EPA’s inspection file holds no inspection for NPDES TXR1546OP.

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 TXR1546OP.

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, TXR1546OP.

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  • One permit holder — $99/month
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  • 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

COBBLESTONE SECTION 4, a storm water construction permit in Texas City, is one of 272 such permits in Galveston County on EPA's NPDES register, and it sits within the Dickinson Bayou subwatershed, which holds 382 NPDES permits, this one included. Of those 272 Galveston County storm water construction permits, 0.4% have a violation on file, and 4.0% were issued earlier than this one. The permit has no pollutants under a numeric limit and no effluent exceedances on record, with both counts at 0.