Clean Water Act discharge permit · NPDES NDP000050

AMBER WAVES, INC., Richardton, ND: NPDES NDP000050 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
12Pollutants under a numeric limit
2Pollutants with an effluent exceedance

AMBER WAVES, INC., held by Amber Waves, holds NPDES permit NDP000050. EPA’s file records it issued December 31, 2015 and expiring December 31, 2020. 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	AMBER WAVES, INC.
Permittee as filed	Amber Waves
NPDES ID	NDP000050
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual industrial user permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	December 31, 2015
Expiration date	December 31, 2020
Issuing agency	North Dakota Department of Environmental Quality
Address	Richardton, ND 58652
NAICS	332420 – Metal Tank [Heavy Gauge] Manufacturing
SIC	3469 – Metal Stampings

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.

Effluent limits and exceedances

12Pollutants on file
12Under a numeric limit
12With a violation of any kind
2With 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
Copper, total [as Cu]	2	8	2	June 30, 2019	61% over the limit
Zinc, total [as Zn]	2	7	1	June 30, 2023	57% over the limit
Cyanide, total [as CN]	2	6	0
Cadmium, total [as Cd]	2	6	0
Chromium, total [as Cr]	2	6	0
Lead, total [as Pb]	2	6	0
Nickel, total [as Ni]	2	6	0
Silver, total [as Ag]	2	6	0
Flow, process wastewater	2	6	0
pH	2	4	0
Total toxic organics [TTO] [40 CFR433]	1	1	0
Flow, total	1	1	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 NDP000050.

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 NDP000050 there.

Nearby on the register

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

The page covers NPDES permit NDP000050 held by AMBER WAVES, INC. in Richardton, ND, which is administratively continued with a Minor Discharger class and an expiration date of December 31, 2020. It lists 12 pollutants on file, 12 under a numeric limit, 2 with an effluent exceedance, and a class 12 entry.