Clean Water Act discharge permit · NPDES ORR10J939

ARMSTRONG WORLD INDUSTRIES- ST HELENS, St Helens, OR: NPDES ORR10J939 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

ARMSTRONG WORLD INDUSTRIES- ST HELENS, held by Entact, LLC, holds NPDES permit ORR10J939. EPA’s file records it issued May 11, 2026 and expiring December 14, 2030.

ARMSTRONG WORLD INDUSTRIES- ST HELENS, St Helens, Oregon: Coverage under a general permit ORR10J939, held by Entact, LLC; Construction stormwater; Effective; issued May 11, 2026, term to December 14, 2030.

Oregon holds 613 Construction stormwater coverages of this permit type in EPA’s file; 443 were issued before ORR10J939.

Coverages issued nearest ORR10J939

May 8, 2026: LOOKINGGLASS EAST LANDSLIDE STABILIZATION PLAN, Roseburg, ORR10J934, held by Northwest Natural Gas Co.
May 11, 2026: GROCERY OUTLET - BANDON OR, Bandon, ORR10J935, held by AGC Ventures LLC
May 11, 2026: VENETA ELEMENTARY SCHOOL, Veneta, ORR10J936, held by Fern Ridge School District
May 11, 2026: WSD CAPITAL PROJECTS, Willamina, ORR10J937, held by Willamina School District
May 11, 2026: HIGHLAND ESTATES, Otis, ORR10J938, held by Highland Estates Homeowners Association
May 11, 2026: MIDLINE SUBSTATION, North Powder, ORR10J940, held by Idaho Power Company
May 12, 2026: NORTH MIDDLE SCHOOL TRACK IMPROVEMENTS, Grants Pass, ORR10J942, held by GRANTS PASS SCHOOL DISTRICT #7
May 12, 2026: FT. MCKAY PUD PHASE II, Sutherlin, ORR10J943, held by Fort McKay Subdivision LLC
May 12, 2026: FRY SUBSTATION, Albany, ORR10J944, held by PacifiCorp
May 13, 2026: LOWER SOUTH FORK MCKENZIE RIVER VALLEY RESTORATION PHASE 3, Rainbow, ORR10J945, held by McKenzie Watershed Alliance

ARMSTRONG WORLD INDUSTRIES- ST HELENS among its neighbors

EPA’s permit file holds 4 discharge permits in the Milton Creek subwatershed (HUC 170900120403), ORR10J939 among them. Its county holds 29, 3 of them major permits; ORR10J939 is a minor permit.

Other permits in the Milton Creek subwatershed (HUC 170900120403)

HANKEY ROAD PIT, Saint Helens: ORR320043, minor permit, permit term to December 3, 2017
KERVIN'S CUSTOM IRONWORKS, St Helens: ORRZ00186, minor permit, permit term to June 30, 2026
ST HELENS POLICE STATION, St Helens: ORR10J920, minor permit, permit term to December 14, 2030

What the register holds for ARMSTRONG WORLD INDUSTRIES- ST HELENS: its NPDES ID, its permit type and status, its dates, its address in St Helens, Oregon. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES ORR10J939.

Identity

Facility as filed	ARMSTRONG WORLD INDUSTRIES- ST HELENS
Permittee as filed	Entact, LLC
NPDES ID	ORR10J939
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 11, 2026
Expiration date	December 14, 2030
Address	St Helens, OR 97051
Receiving water impaired	303(D) Listed
Subwatershed	Milton Creek (HUC 170900120403)
Other EPA IDs (FRS)	RCRA handler ORD152861522

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 ORR10J939.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES ORR10J939.

Inspections

EPA’s inspection file holds no inspection for NPDES ORR10J939.

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 ORR10J939.

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, ORR10J939.

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Nearby on the register

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

ARMSTRONG WORLD INDUSTRIES- ST HELENS is one of 8 storm water construction permits on EPA's NPDES register in Columbia County, where 0.0% of those permits have a violation on file. The permit is also one of 4 NPDES permits in the Milton Creek subwatershed (HUC 170900120403), and 87.5% of the 8 storm water construction permits in Columbia County have an earlier issue date than this permit.