Clean Water Act discharge permit · NPDES NDR320047

KNIFE RIVER-ROCK ISLAND FACILITY, Bismarck, ND: NPDES NDR320047 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
2Pollutants under a numeric limit
0Pollutants with an effluent exceedance
0Inspections on file
0Formal enforcement actions

KNIFE RIVER-ROCK ISLAND FACILITY, held by Knife River Corporation North Central, holds NPDES permit NDR320047, which discharges to Apple Creek. EPA’s file records it issued December 23, 2019 and expiring December 31, 2024.

KNIFE RIVER-ROCK ISLAND FACILITY, Bismarck, North Dakota: Coverage under a general permit NDR320047, held by Knife River Corporation North Central; Administratively continued (past its expiration date and still in force until reissued); issued December 23, 2019, term to December 31, 2024, by North Dakota Department of Environmental Quality; discharges to Apple Creek.

Solids, total suspended: 1 limit, 0 violations of any kind, 0 effluent exceedances.
Iron, total [as Fe]: 1 limit, 0 violations of any kind, 0 effluent exceedances.

Other permits held by Knife River Corporation North Central

CITY OF WILLISTON: NDR109840, issued March 31, 2015
KNIFE RIVER CORPORATION - NORTH CENTRAL; PORTABLE LOCATIONS STATEWIDE, Bismarck: NDR320151, issued December 23, 2019
KNIFE RIVER - WASHBURN RMX PLANT, Washburn: NDR320639, issued December 23, 2019
KNIFE RIVER - BEULAH PLANT, Beulah: NDR320640, issued December 23, 2019
KNIFE RIVER WESTERN NORTH DAKOTA, Williston: NDR320659, issued December 23, 2019
KNIFE RIVER - WATFORD CITY RMX, Watford City: NDR320695, issued December 23, 2019
KNIFE RIVER TIOGA FACILITY, Tioga: NDR320706, issued December 23, 2019

KNIFE RIVER-ROCK ISLAND FACILITY among its neighbors

EPA’s permit file holds 57 discharge permits in the Hay Creek subwatershed (HUC 101301031504), NDR320047 among them.

Other permits in the Hay Creek subwatershed (HUC 101301031504)

2600 VERMONT, Bismarck: NDR113474, minor permit, permit term to March 31, 2030
26020 PCN 22958 BGR-IM-X-1-094(215)162, Alexandria: NDR113726, minor permit, permit term to March 31, 2030
BIS-MAN TRANSIT (CSC 7049), Bismarck: NDX000205, minor permit, permit term to March 31, 2025
BISMARCK CITY OF, Bismarck: NDR040006, minor permit, permit term to March 31, 2026
BISMARCK PUBLIC SCHOOLS, (Unknown City): NDR112901, minor permit, permit term to March 31, 2025
BOULDER RIDGE DEVELOPMENT - BOULDER RIDGE 7TH MULTI UNITS, Bismarck: NDR113798, minor permit, permit term to March 31, 2030
BURLEIGH BUILDERS - ASPEN BUSINESS PARK, Bismarck: NDR113698, minor permit, permit term to March 31, 2030
BURLEIGH COUNTY – CONSTRUCTION OF 26TH STREET NE & 57TH AVENUE, (Unknown City): NDR113505, minor permit, permit term to March 31, 2030
BURLEIGH/MORTON COUNTIES JAIL FACILITY, Bismarck: NDR106636, not classed
CITY OF BISMARCK - BISMARCK SID 594 PART B, Bismarck: NDR113730, minor permit, permit term to March 31, 2030

What the register holds for KNIFE RIVER-ROCK ISLAND FACILITY: its NPDES ID, its permit type and status, its dates, its address in Bismarck, North Dakota, its receiving water, and 2 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES NDR320047.

Identity

Facility as filed	KNIFE RIVER-ROCK ISLAND FACILITY
Permittee as filed	Knife River Corporation North Central
NPDES ID	NDR320047
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
Issued	December 23, 2019
Expiration date	December 31, 2024
Issuing agency	North Dakota Department of Environmental Quality
Address	Bismarck, ND 58504
Receiving water	Apple Creek
Subwatershed	Hay Creek (HUC 101301031504)

Effluent limits and exceedances

2Pollutants on file
2Under 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
Solids, total suspended	1	0	0
Iron, total [as Fe]	1	0	0

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES NDR320047.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES NDR320047.

Inspections

EPA’s inspection file holds no inspection for NPDES NDR320047.

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 NDR320047.

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Nearby on the register

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

This public-records page covers NPDES permit NDR320047 for the KNIFE RIVER-ROCK ISLAND FACILITY in Bismarck, ND, held by Knife River Corporation North Central and discharging to Apple Creek. The page lists 0 pollutants with an effluent exceedance and 2 pollutants under a numeric limit, with the permit shown as Administratively continued.