Clean Water Act discharge permit · NPDES NDR320029

NORTHERN IMPROVEMENT CO-BISMARCK ASPHALT BATCH PLANT, Bismarck, ND: NPDES NDR320029 discharge permit, effluent exceedances, inspections, penalties

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

NORTHERN IMPROVEMENT CO-BISMARCK ASPHALT BATCH PLANT, held by Northern Improvement Company, holds NPDES permit NDR320029, which discharges to Upper Lake Oahe. EPA’s file records it issued December 23, 2019 and expiring December 31, 2024.

NORTHERN IMPROVEMENT CO-BISMARCK ASPHALT BATCH PLANT, Bismarck, North Dakota: Coverage under a general permit NDR320029, held by Northern Improvement Company; 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 Upper Lake Oahe.

Solids, total suspended: 2 limits, 6 violations of any kind, 0 effluent exceedances.

August 18, 2026: Evaluation (S).

Other permits held by Northern Improvement Company

NORTHERN IMPROVEMENT COMPANY: NDG070730, issued March 25, 2015
SNT DEVELOPMENT, INC: NDR105524, issued March 31, 2015
CITY OF WEST FARGO: NDR109727, issued March 31, 2015
NORTHERN IMPROVEMENT CO-FARGO CONCRETE BATCH PLANT LANDFILL SITE, Fargo: NDR320025, issued December 23, 2019
NORTHERN IMPROVEMENT CO-FARGO INERT LANDFILL, Fargo: NDR320026, issued December 23, 2019
NORTHERN IMPROVEMENT CO-FARGO SHOP YARD, Fargo: NDR320027, issued December 23, 2019
NORTHERN IMPROVEMENT CO-DICKINSON SHOP YARD, Dickinson: NDR320031, issued December 23, 2019
NORTHERN IMPROVEMENT CO-PORTABLE GRAVEL MINING/PROCESSING SITES, Fargo: NDR320160, issued December 23, 2019
NORTHERN IMPROVEMENT CO-PERMANENT CONCRETE PLANT 90-031 SOUTH FARGO, Fargo: NDR320470, issued December 23, 2019
NORTHERN IMPROVEMENT CO-TEMPORARY CONCRETE BATCH PLANT SITES, Fargo: NDR320471, issued December 23, 2019

NORTHERN IMPROVEMENT CO-BISMARCK ASPHALT BATCH PLANT among its neighbors

EPA’s permit file holds 69 discharge permits in the Apple Creek subwatershed (HUC 101301031505), NDR320029 among them.

Other permits in the Apple Creek subwatershed (HUC 101301031505)

26038 - BURLEIGH COUNTY - PCN 23957/8, (Unknown City): NDR114023, minor permit, permit term to March 31, 2030
4513 SILBERNAGEL, Bismarck: NDR113480, minor permit, permit term to March 31, 2030
AASF FUEL POINT REPLACEMENT - GREENSTONE CONSTRUCTION, Bismarck: NDR114128, minor permit, permit term to March 31, 2030
ANNUNCIATION PRIORY-U OF MARY, Bismarck: NDG124643, minor permit, discharging to Apple Creek, permit term to September 30, 2023
APPLE CREEK ROAD IMPROVEMENTS PHASE II, Bismarck: NDR114051, minor permit, permit term to March 31, 2030
BURLEIGH COUNTY – BRYAN SLOUGH FORCE MAIN PROJECT NUMBER 0170, Bismarck: NDR113504, minor permit, permit term to March 31, 2030
CITY OF BISMARCK - SID 596 - 52ND ST., Bismarck: NDR114069, minor permit, permit term to March 31, 2030
CITY OF BISMARCK - STORMWATER CONSTRUCTION, Grand Forks: NDR112945, minor permit, permit term to March 31, 2025
CITY OF BISMARCK - STORMWATER CONSTRUCTION, Grand Forks: NDR113242, minor permit, permit term to March 31, 2025
CITY OF BISMARCK - STORMWATER CONSTRUCTION, Grand Forks: NDR113249, minor permit, permit term to March 31, 2025

Identity

Facility as filed	NORTHERN IMPROVEMENT CO-BISMARCK ASPHALT BATCH PLANT
Permittee as filed	Northern Improvement Company
NPDES ID	NDR320029
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	Upper Lake Oahe
Subwatershed	Apple Creek (HUC 101301031505)

Effluent limits and exceedances

1Pollutants on file
1Under a numeric limit
1With 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	2	6	0

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES NDR320029.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES NDR320029.

Inspections

Date	What EPA recorded	Agency
August 18, 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 NDR320029.

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

This public-records page covers Clean Water Act NPDES permit NDR320029 for the Northern Improvement Co-Bismarck Asphalt Batch Plant in Bismarck, ND, held by Northern Improvement Company and discharging to Upper Lake Oahe. The permit is administratively continued and classed as a minor discharger, with 0 pollutants under a numeric limit and 0 pollutants with an effluent exceedance. The subwatershed is listed as Apple Creek (HUC 101301031505).