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Top 5 Offense Groups (Groups Defined)	Penalty Total	Number of Records
safety-related offenses	$720,880	22
environment-related offenses	$447,102	12
employment-related offenses	$64,849	4

Top 5 Primary Offense Types	Penalty Total	Number of Records
workplace safety or health violation	$720,880	22
environmental violation	$447,102	12
labor relations violation	$50,000	2
wage and hour violation	$14,849	2

Notes: Parent-subsidiary linkages are based on relationships current as of the latest revision listed in the Update Log, which may vary from what was the case when a violation occurred. The penalty totals are adjusted to account for the fact that the individual entries below may include both agency records and settlement announcements for the same case; or else a penalty covering multiple locations may be listed in the individual records for each of the facilities. The totals are also adjusted to reflect cases in which federal and state or local agencies cooperated and issued separate announcements of the outcome. Duplicate or overlapping penalty amounts are marked with an asterisk in the list below.

Links: Subsidy Tracker data on financial assistance to this company by federal, state and local government agencies can be found here.

Individual Penalty Records:

Click on the company or penalty amount for more information on each case.

Company	Primary Offense Type	Year	Agency	Penalty Amount
Knife River Corporation	environmental violation	2016	MT-ENV	$140,000
KNIFE RIVER CORPORATION - MOUNTAIN WEST	workplace safety or health violation	2022	OSHA	$89,985
Knife River Corporation-Northwest	workplace safety or health violation	2023	MSHA	$88,354
KNIFE RIVER CORPORATION - MOUNTAIN WEST	workplace safety or health violation	2021	OSHA	$78,500
KNIFE RIVER CORPORATION	workplace safety or health violation	2018	OSHA	$77,604
Knife River Corporation	environmental violation	2011	EPA	$55,000
D S S Company dba Knife River Construction	workplace safety or health violation	2015	MSHA	$52,500
KNIFE RIVER CORPORATION - MOUNTAIN WEST	workplace safety or health violation	2022	OSHA	$51,076
Knife River North Central	workplace safety or health violation	2012	MSHA	$47,250
KNIFE RIVER CORPORATION	environmental violation	2017	OR-ENV	$43,512
KNIFE RIVER MIDWEST, LLC	environmental violation	2009	EPA	$43,082
KNIFE RIVER CORPORATION - NORTH CENTRAL	workplace safety or health violation	2023	OSHA	$38,950
Knife River Corporation	environmental violation	2018	OR-ENV	$35,509
D S S Company dba Knife River Construction	workplace safety or health violation	2015	MSHA	$35,000
Knife River North Central	workplace safety or health violation	2013	MSHA	$30,000
Knife River Corporation - North Central d/b/a Knife River Materials	labor relations violation	2009	NLRB	$25,000
Knife River Corporation-North Central d/b/a Knife River Materials	labor relations violation	2009	NLRB	$25,000
Knife River Corporation	environmental violation	2021	OR-ENV	$25,000
KNIFE RIVER CORPORATION NORTH CENTRAL	environmental violation	2015	EPA	$23,850
Knife River Corporation	environmental violation	2019	OR-ENV	$23,461
Knife River Corporation	environmental violation	2022	OR-ENV	$20,822
Knife River	environmental violation	2009	WY-ENV	$18,400
Knife River Corporation - Northwest	workplace safety or health violation	2005	MSHA	$18,000
Knife River Corporation-Northwest	workplace safety or health violation	2018	MSHA	$15,550
Knife River Southern Idaho Division	workplace safety or health violation	2019	MSHA	$15,000
KNIFE RIVER CORPORATION - NORTHWEST	workplace safety or health violation	2018	OSHA	$12,934
KNIFE RIVER CORPORATION	workplace safety or health violation	2012	OSHA	$12,000
Knife River Corporation - South	environmental violation	2010	TX-ENV	$10,966
Knife River Corporation-Northwest	workplace safety or health violation	2010	MSHA	$10,500
Knife River Southern Idaho Division	workplace safety or health violation	2019	MSHA	$9,409
Knife River Corporation - Northwest	wage and hour violation	2015	WHD	$9,048
KNIFE RIVER CORPORATION - NORTHWEST	workplace safety or health violation	2017	OSHA	$9,000
KNIFE RIVER CORPORATION SOUTH	workplace safety or health violation	2019	OSHA	$9,000
KNIFE RIVER CORPORATION	workplace safety or health violation	2018	OSHA	$8,316
Knife River Corporation	environmental violation	2019	OR-ENV	$7,500
KNIFE RIVER CORPORATION - SOUTH	workplace safety or health violation	2019	OSHA	$6,952
Knife River Corporation - North West	wage and hour violation	2010	WHD	$5,801
Knife River Corporation North Central	workplace safety or health violation	2009	MSHA	$5,000