Clean Water Act discharge permit · NPDES ALR10C3EZ

D.R. HORTON - COLONY WOODS, Mobile, AL: NPDES ALR10C3EZ discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
0Pollutants under a numeric limit
0Pollutants with an effluent exceedance
1Inspections on file
0Formal enforcement actions

D.R. HORTON - COLONY WOODS, held by D.R. Horton, Inc. Gulf Coast Division, holds NPDES permit ALR10C3EZ. EPA’s file records it issued February 6, 2023 and expiring March 31, 2026.

D.R. HORTON - COLONY WOODS, Mobile, Alabama: Coverage under a general permit ALR10C3EZ, held by D.R. Horton, Inc. Gulf Coast Division; Construction stormwater; Administratively continued (past its expiration date and still in force until reissued); issued February 6, 2023, term to March 31, 2026, by State; New Multifamily Housing Construction [except For-Sale Builders].

April 24, 2026: Evaluation (S).

Alabama holds 7,857 Construction stormwater coverages of this permit type in EPA’s file; 3,904 were issued before ALR10C3EZ. D.R. Horton, Inc. Gulf Coast Division holds 4 permits in Alabama.

Other permits held by D.R. Horton, Inc. Gulf Coast Division

D.R. HORTON - DEES PLANTATION, Grand Bay: ALR10C29K, issued April 28, 2022
DR HORTON - DUNHAM FARMS, Theodore: ALR10C2C1, issued May 18, 2022
DR HORTON - ANGLEBROOK, Mobile: ALR10C2FP, issued June 13, 2022

Coverages issued nearest ALR10C3EZ

February 2, 2023: OSPREY LANDING, Gulf Shores, ALR10C3EM, held by DSLD Homes (Gulf Coast) LLC
February 2, 2023: 2630 CAPSTONE, Montgomery, ALR10C3EQ, held by S WRIGHT CONSTRUCTION LLC
February 2, 2023: HDK TOWING, Auburn, ALR10C3ET, held by J.A. Lett Construction
February 3, 2023: HELTON DRIVE, Florence, ALR10C3EW, held by KT Holdings LLC.
February 6, 2023: DALTON COVE AT TAYLOR LAKES, Montgomery, ALR10C3EY, held by D.R. Horton, Inc.
February 6, 2023: CARTECH PHASE 3, Opelika, ALR10C3F0, held by Marshall Design-Build, LLC
February 6, 2023: PACKARD SUBDIVISION, PH. 4, Huntsville, ALR10C3F1, held by Concord Land Development, Inc
February 6, 2023: RIVERSTONE AT MONROVIA, Harvest, ALR10C3F2, held by Concord Land Development, Inc.
February 6, 2023: OAK HILL SUBDIVISION, Birmingham, ALR10C3F6, held by NCRC Housing Rehab Fund, LLC
February 6, 2023: 2541 BONE DRY RD, Trafford, ALR10C3F7, held by Cahaba Land Services

D.R. HORTON - COLONY WOODS among its neighbors

EPA’s permit file holds 69 discharge permits in the Halls Mill Creek subwatershed (HUC 031602050102), ALR10C3EZ among them. Its county holds 1,120, 18 of them major permits; ALR10C3EZ is a minor permit.

Other permits in the Halls Mill Creek subwatershed (HUC 031602050102)

0 AIRPORT BLVD, Mobile: ALR10C6ZT, minor permit, permit term to March 31, 2026
4610 CYPRESS BUSINESS PARK DR, Mobile: ALR10C2RP, minor permit, permit term to March 31, 2026
ACE AUTO SALVAGE, Mobile: ALG180651, minor permit, permit term to September 30, 2022
ACE AUTO SALVAGE & U PULL IT, Mobile: ALG180931, minor permit, permit term to September 30, 2027
ADDISON WOODS BY ADAMS HOMES, Mobile: ALR10BHOM, minor permit, permit term to March 31, 2021
ADDITIONS TO THE ADMINISTRATION BUILDING, Mobile: ALR10AL77, minor permit, permit term to March 31, 2016
AMAZON.COM SERVICES LLC - DFB1, Mobile: ALG141202, minor permit, permit term to September 30, 2027
AUTO AIR OF ALABAMA, Mobile: ALR10C78C, minor permit, permit term to March 31, 2026
BAYPOINTE - CON BED EXPANSION, Mobile: ALR10C60D, minor permit, permit term to March 31, 2026
BAYWIND VILLAGE RESIDENTIAL SUBDIVISION, Mobile: ALR10C880, minor permit, permit term to March 31, 2031

Identity

Facility as filed	D.R. HORTON - COLONY WOODS
Permittee as filed	D.R. Horton, Inc. Gulf Coast Division
NPDES ID	ALR10C3EZ
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	Construction stormwater
Issued	February 6, 2023
Expiration date	March 31, 2026
Issuing agency	State
Address	Mobile, AL 36695
Subwatershed	Halls Mill Creek (HUC 031602050102)
NAICS	236116 – New Multifamily Housing Construction [except For-Sale Builders]
SIC	1521 – Single-Family Housing Construction

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 ALR10C3EZ.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES ALR10C3EZ.

Inspections

Date	What EPA recorded	Agency
April 24, 2026	Evaluation	S

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 ALR10C3EZ.

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Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

The D.R. HORTON - COLONY WOODS permit is one of 606 storm water construction permits in Mobile County, and 47.2% of that group was issued before its February 6, 2023 date. The permit has no pollutants under a numeric limit and no effluent exceedances, and 0.0% of those 606 Mobile County storm water construction permits have a violation on file.