Clean Water Act discharge permit · NPDES NDG426701

MISTY WATERS WASTEWATER TREATMENT PLANT, Bismarck, ND: NPDES NDG426701 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
13Pollutants under a numeric limit
5Pollutants with an effluent exceedance

MISTY WATERS WASTEWATER TREATMENT PLANT, held by Misty Waters, LLC, holds NPDES permit NDG426701, which discharges to Painted Woods-Square Butte. EPA’s file records it issued December 20, 2017 and expiring December 31, 2022. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filed	MISTY WATERS WASTEWATER TREATMENT PLANT
Permittee as filed	Misty Waters, LLC
NPDES ID	NDG426701
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 20, 2017
Expiration date	December 31, 2022
Issuing agency	North Dakota Department of Environmental Quality
Address	Bismarck, ND 58501
Receiving water	Painted Woods-Square Butte

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

13Pollutants on file
13Under a numeric limit
13With a violation of any kind
5With 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
E. coli	3	64	27	June 30, 2026	592% over the limit
BOD, 5-day, 20 deg. C	3	55	19	June 30, 2026	360% over the limit
Solids, total suspended	3	54	18	June 30, 2026	280% over the limit
pH	2	27	3	December 31, 2022
Oil & Grease	3	37	1	June 30, 2017	326% over the limit
Nitrogen, ammonia total [as N]	3	39	0
Chlorine, total residual	3	39	0
Flow, in conduit or thru treatment plant	2	24	0
Chloride [as Cl]	3	15	0
Bromide [as Br]	3	15	0
Flow, total	1	13	0
Oil and grease visual	1	13	0
Duration of discharge	1	12	0

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

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES NDG426701.

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.

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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 NDG426701 there.

Nearby on the register

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

This public-records page covers Clean Water Act discharge permit NDG426701 for MISTY WATERS WASTEWATER TREATMENT PLANT in Bismarck, ND, held by Misty Waters, LLC, and discharging to Painted Woods-Square Butte. The permit is listed as administratively continued, with a minor discharger class, 13 pollutants under a numeric limit, and 5 pollutants with an effluent exceedance.