Clean Water Act discharge permit · NPDES OR0044687

NW NATURAL GAS SITE REMEDIATION, Multnomah, OR: NPDES OR0044687 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
10Pollutants under a numeric limit
0Pollutants with an effluent exceedance

NW NATURAL GAS SITE REMEDIATION, held by NORTHWEST NATURAL, holds NPDES permit OR0044687. EPA’s file records it issued July 19, 2013 and expiring August 31, 2018. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filed	NW NATURAL GAS SITE REMEDIATION
Permittee as filed	NORTHWEST NATURAL
NPDES ID	OR0044687
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	July 19, 2013
Expiration date	August 31, 2018
Issuing agency	STA
Address	Multnomah, OR 97210
Receiving water impaired	303(D) Listed
Subwatershed	Willamette River (HUC 170900120202)
SIC	4923 – Gas Transmission And Distribution
Other EPA IDs (FRS)	RCRA handler OR0000204701

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.

Effluent limits and exceedances

10Pollutants on file
10Under 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
pH	2	0	0
Cyanide, total [as CN]	2	0	0
Iron, total recoverable	2	0	0
Lead, total recoverable	2	0	0
Copper, total recoverable	2	0	0
Benzo[a]pyrene	2	0	0
Indeno[1,2,3-cd]pyrene	2	0	0
Benzo[a]anthracene	2	0	0
Dibenz[a,h]anthracene	2	0	0
Mercury, total recoverable	2	0	0

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES OR0044687.

Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.

Inspections, violations and enforcement

1Single-event violations

Date	What EPA recorded	Agency
January 4, 2024	Effluent Violations - Unauthorized Discharge	ST6

Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.

Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.

Watch this permit

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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID OR0044687 there.

Nearby on the register

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

This public-records page covers NPDES permit OR0044687 for NW NATURAL GAS SITE REMEDIATION in Multnomah, OR, held by NORTHWEST NATURAL, which EPA's file shows as issued July 19, 2013 and expiring August 31, 2018, and now administratively continued. The page lists a minor discharger class, 0 pollutants under a numeric limit, and 0 pollutants with an effluent exceedance.