Clean Water Act discharge permit · NPDES VAR10V857

CHESTER M.O.B /A.S.C., Chesterfield, VA: NPDES VAR10V857 discharge permit, effluent exceedances, inspections, penalties

EffectivePermit status
MinorDischarger class
0Pollutants under a numeric limit
0Pollutants with an effluent exceedance
3Inspections on file
0Formal enforcement actions

CHESTER M.O.B /A.S.C., held by Hourigan Construction Corporation, holds NPDES permit VAR10V857, which discharges to Swift Creek-Third Branch. EPA’s file records it issued July 1, 2024 and expiring June 30, 2029.

CHESTER M.O.B /A.S.C., Chesterfield, Virginia: Coverage under a general permit VAR10V857, held by Hourigan Construction Corporation; Construction stormwater; Effective; issued July 1, 2024, term to June 30, 2029, by VA DEQ; discharges to Swift Creek-Third Branch.

October 5, 2026: Evaluation (S).
September 28, 2026: Evaluation (S).
April 24, 2026: Evaluation (S).

Virginia holds 6,257 Construction stormwater coverages of this permit type in EPA’s file; 3,403 were issued before VAR10V857.

Coverages issued nearest VAR10V857

July 1, 2024: VDOT FREDERICKSBURG 0207 016 647 UPC 118289, Mattaponi, VAR10V851, held by Virginia Department of Transportation
July 1, 2024: ELBOW ROAD BRIDGE REPLACEMENT, Chesapeake, VAR10V852, held by City of Chesapeake - Public Works
July 1, 2024: HS-14 SITE PLAN, Leesburg, VAR10V853, held by Loudoun County Public Schools
July 1, 2024: JONES MILL POND DAM REHABILITATION, Yorktown, VAR10V854, held by Jade Creek Construction
July 1, 2024: WREXHAM TOWNES-SECTION 1 - BUILDING PERMITS ONLY, Chester, VAR10V856, held by NVR DBA Ryan Homes
July 1, 2024: DCR CABINS - FIRST LANDING, Virginia Beach, VAR10V858, held by Tazewell Contracting
July 1, 2024: POTOMAC SHORES - BLOCK 7 - TOWN CENTER REVISION 1, Dumfries, VAR10V865, held by STANLEY MARTIN HOMES LLC
July 1, 2024: METALSA PARKING LOT EXPANSION, Roanoke, VAR10V867, held by Metalsa
July 1, 2024: S B COX RECYCLING CENTER AT AMBER HILLS LOT 3, Troy, VAR10V868, held by S B Cox Inc
July 1, 2024: NORTHERN VIRGINIA SCIENCE CENTER, Sterling, VAR10V869, held by Balfour Beatty

CHESTER M.O.B /A.S.C. among its neighbors

EPA’s permit file holds 47 discharge permits in the Third Branch-Swift Creek subwatershed (HUC 020802070902), VAR10V857 among them.

Other permits in the Third Branch-Swift Creek subwatershed (HUC 020802070902)

ADDISON EVANS WATER PRODUCTION AND LAB FACILITY, Midlothian: VA0006254, minor permit, discharging to Swift Creek-Third Branch, permit term to April 30, 2026
ADDISON-EVANS WATER PRODUCTION & LABORATORY FACILI, Midlothian: VAR10U776, minor permit, discharging to Swift Creek-Third Branch, permit term to June 30, 2029
ATTAIN AT SWIFT CREEK APARTMENTS, Chester: VAR10W886, minor permit, discharging to Swift Creek-Third Branch, permit term to June 30, 2029
BAILEY BRIDGE CONNECTOR IMPROVEMENTS, Midlothian: VAR10V128, minor permit, discharging to Swift Creek-Third Branch, permit term to June 30, 2029
BAILEY BRIDGE STORAGE, Chesterfield: VAR10R288, minor permit, discharging to Swift Creek-Third Branch, permit term to June 30, 2024
BEACH STATION EVENT CENTER, Chesterfield: VAR10R246, minor permit, discharging to Licking Creek-Second Branch, permit term to June 30, 2024
BRANCH CROSSING SUBDIVISION SECTION 1, Chesterfield: VAR10W791, minor permit, discharging to Swift Creek-Third Branch, permit term to June 30, 2029
BRANSCOME - CHESTERFIELD, Midlothian: VAR050666, minor permit, discharging to Swift Creek-Third Branch, permit term to June 30, 2024
BRANSCOME ASPHALT PLANT, Midlothian: VAR10U606, minor permit, discharging to Swift Creek-Third Branch, permit term to June 30, 2029
CHESTERFIELD ICE ARENA, Midlothian: VAR10V309, minor permit, discharging to Swift Creek-Third Branch, permit term to June 30, 2029

Identity

Facility as filed	CHESTER M.O.B /A.S.C.
Permittee as filed	Hourigan Construction Corporation
NPDES ID	VAR10V857
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	July 1, 2024
Expiration date	June 30, 2029
Issuing agency	VA DEQ
Address	Chesterfield, VA 23832
Receiving water	Swift Creek-Third Branch
Subwatershed	Third Branch-Swift Creek (HUC 020802070902)

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 VAR10V857.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES VAR10V857.

Inspections

Date	What EPA recorded	Agency
October 5, 2026	Evaluation	S
September 28, 2026	Evaluation	S
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 VAR10V857.

Watch this permit

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Nearby on the register

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

The CHESTER M.O.B /A.S.C. permit is one of 124 storm water construction permits in Chesterfield on EPA's NPDES register, including this one. Among those 124 Chesterfield storm water construction permits, 0.0% carry a violation on file, and 55.6% were issued earlier than this permit. This permit sits within the Third Branch-Swift Creek subwatershed, where 47 NPDES permits are registered, this one included.