MONTANA POWER COMPANY
COLSTRIP PROJECT DIVISION, COLSTRIP, MT 59323
Having inspection records is common for businesses in regulated industries. Data and methodology
Inspection records
Oct 5, 1995#102802725Oct 5, 1995Complaint (B) · Partial scope, Safety#102802725$00 viol.0 violations$0 in penalties
Inspection #102802725
Dates
- Opened
- Oct 5, 1995
- Closing Conference Date
- Oct 5, 1995
- Closed
- Oct 5, 1995
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- Yes
- Number of Employees
- 500
- Related Activity
- 1 complaint
Violations and Penalties
- Total Violations
- 0
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- Po Box 38, Colstrip, MT 59323
- Industry
- Not classified in OSHA's inspection record.
Complaint Inspection: This inspection record is categorized as a complaint inspection in the DOL OSHA enforcement data. OSHA can open complaint-driven inspections after receiving safety or health complaints from workers or their representatives.
Oct 18, 1991#107218554Oct 18, 1991Unprogrammed Related (G) · Partial scope, Safety#107218554$00 viol.0 violations$0 in penalties
Inspection #107218554
Dates
- Opened
- Oct 18, 1991
- Closing Conference Date
- Oct 21, 1991
- Closed
- Oct 22, 1991
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- Yes
- Number of Employees
- 640
Violations and Penalties
- Total Violations
- 0
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- Colstrip Project Division, Colstrip, MT 59323
- Industry
- Not classified in OSHA's inspection record.
Unprogrammed Related Inspection: This inspection record is categorized as an unprogrammed related inspection in the DOL OSHA enforcement data. The public DOL category label is preserved here without adding extra interpretation beyond the government label.
May 6, 1991#107215295May 6, 1991Complaint (B) · Partial scope, Safety#107215295$00 viol.0 violations$0 in penalties
Inspection #107215295
Dates
- Opened
- May 6, 1991
- Closing Conference Date
- Jul 18, 1991
- Closed
- Jul 19, 1991
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- Yes
- Number of Employees
- 640
- Related Activity
- 1 complaint
Violations and Penalties
- Total Violations
- 0
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- Colstrip Project Division, Colstrip, MT 59323
- Industry
- Not classified in OSHA's inspection record.
Complaint Inspection: This inspection record is categorized as a complaint inspection in the DOL OSHA enforcement data. OSHA can open complaint-driven inspections after receiving safety or health complaints from workers or their representatives.
Apr 15, 1991#101461838Apr 15, 1991Complaint (B) · Partial scope, Health#101461838$02 viol.2 violations$0 in penalties
Inspection #101461838
Dates
- Opened
- Apr 15, 1991
- Closing Conference Date
- Apr 15, 1991
- Closed
- Oct 9, 1991
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- Yes
- Number of Employees
- 650
- Related Activity
- 1 complaint
Violations and Penalties
- Total Violations
- 2
- Violation Types
- 2 other-than-serious
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- Po Box 38, Colstrip, MT 59323
- Industry
- Not classified in OSHA's inspection record.
Complaint Inspection: This inspection record is categorized as a complaint inspection in the DOL OSHA enforcement data. OSHA can open complaint-driven inspections after receiving safety or health complaints from workers or their representatives.
Violations
Violation list (2 of 2 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001A | 1910.1200 Hazard Communication OSHA citation code: 19101200 F05 I | Other | 1 | 1 | $0 | $0 | Aug 16, 1991 | - | - |
| 01001B | 1910.1200 Hazard Communication OSHA citation code: 19101200 F05 II | Other | 1 | 1 | $0 | $0 | Aug 16, 1991 | - | - |
Oct 12, 1990#101461622Oct 12, 1990FatalityAccident (A) · Partial scope, SafetyFatality#101461622$3,0004 viol.4 violations$3,000 in penalties
Inspection #101461622
Dates
- Opened
- Oct 12, 1990
- Closing Conference Date
- Jan 31, 1991
- Closed
- May 1, 1991
Inspection
- Advance Notice
- Yes
- Owner Type
- Private
- Union Status
- Yes
- Number of Employees
- 650
- Related Activity
- 1 accident
Violations and Penalties
- Total Violations
- 4
- Violation Types
- 4 serious
- Initial Penalties
- $4,000
- Penalties on Record
- $3,000
- Site Address
- Main Street East, Colstrip, MT 59323
- Industry
- Not classified in OSHA's inspection record.
Accident Inspection: This inspection record is categorized as an accident inspection in the U.S. Department of Labor OSHA enforcement data. Employers must report work-related fatalities within 8 hours, and work-related inpatient hospitalizations, amputations, or losses of an eye within 24 hours. An accident-related inspection does not by itself determine fault.
Incident Investigation Summaries
Incident investigation summaries linked to this inspection through OSHA's accident and injury enforcement data. These summaries describe the reported incident. The enforcement outcome for the linked inspection is in the inspection details above.
Fall - foot knocked off of scrubber vessel
Chemical Exposure Sampling17 substances sampled
Air monitoring samples collected by OSHA during this inspection. Results grouped by substance.
| Substance | Samples | Result Range | Unit |
|---|---|---|---|
| Antimony and Compounds (as Sb) | 3 | 0.0522 - 0.1252 | mg/m³ |
| Arsenic, Inorganic | 3 | 0 | mg/m³ |
| Beryllium and Beryllium Compounds (as Be) | 3 | 0 - 0.0008 | mg/m³ |
| Cadmium Fume (as Cd) | 3 | 0 | mg/m³ |
| Chromium, Metal and Insoluble Salts | 3 | 0 - 0.0239 | mg/m³ |
| Cobalt, Metal, Dust and Fume (as Co) | 3 | 0.0115 - 0.0257 | mg/m³ |
| Copper Fume (as Cu) | 3 | 0.0213 - 0.0419 | mg/m³ |
| Fluorides (as F) | 2 | 0 - 1.4 | mg/m³ |
| Iron Oxide Fume | 3 | 8.0053 - 9.4431 | mg/m³ |
| Lead, Inorganic (as Pb) | 3 | 0 | mg/m³ |
| Manganese Fume (as Mn) | 3 | 0.1927 - 0.2328 | mg/m³ |
| Molybdenum (as Mo), Insoluble Compounds (Total Dust) | 3 | 0 | mg/m³ |
| Nickel, Metal and Insoluble compounds (as Ni) | 3 | 0 - 0.0354 | mg/m³ |
| Silica, Crystalline Cristobalite, Respirable Dust | 2 | 0 | mg/m³ |
| Silica, Crystalline Quartz (Respirable Fraction) | 2 | 0 | % |
| Vanadium fume (as V2O5) | 3 | 0 - 0.0537 | mg/m³ |
| Zinc Oxide Fume | 3 | 0.0379 - 0.1337 | mg/m³ |
Violations
Violation list (4 of 4 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 5A0001 General Duty Clause, Section 5(a)(1) | Serious | 1 | 5 | $1,000 | $500 | Feb 12, 1991 | - | - |
| 01002 | 5A0001 General Duty Clause, Section 5(a)(1) | Serious | 1 | 5 | $1,000 | $1,000 | Feb 12, 1991 | - | - |
| 01003 | 1910.132 Personal Protective Equipment - General Requirements OSHA citation code: 19100132 A | Serious | 1 | 1 | $1,000 | $1,000 | Feb 12, 1991 | - | - |
| 01004 | 1910.134 Respiratory Protection OSHA citation code: 19100134 B08 | Serious | 1 | 5 | $1,000 | $500 | Feb 12, 1991 | - | - |
Sep 25, 1990#100569003Sep 25, 1990Referral (C) · Partial scope, Safety#100569003$8001 viol.1 violation$800 in penalties
Inspection #100569003
Dates
- Opened
- Sep 25, 1990
- Closing Conference Date
- Sep 25, 1990
- Closed
- Oct 17, 1990
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- Yes
- Number of Employees
- 2
- Related Activity
- 1 referral
Violations and Penalties
- Total Violations
- 1
- Violation Types
- 1 serious
- Initial Penalties
- $800
- Penalties on Record
- $800
- Site Address
- Main Street East, Colstrip, MT 59323
- Industry
- Not classified in OSHA's inspection record.
Referral Inspection: This inspection record is categorized as a referral inspection in the DOL OSHA enforcement data. Referral inspections can result from another agency, another OSHA activity, or another source referring a potential hazard to OSHA.
Violations
Violation list (1 of 1 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 1910.132 Personal Protective Equipment - General Requirements OSHA citation code: 19100132 A | Serious | 1 | 2 | $800 | $800 | Oct 5, 1990 | - | - |
Feb 16, 1990#101461408Feb 16, 1990Complaint (B) · Complete scope, Health#101461408$02 viol.2 violations$0 in penalties
Inspection #101461408
Dates
- Opened
- Feb 16, 1990
- Closing Conference Date
- Apr 19, 1990
- Closed
- May 3, 1990
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- Yes
- Number of Employees
- 650
- Related Activity
- 1 complaint
Violations and Penalties
- Total Violations
- 2
- Violation Types
- 2 other-than-serious
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- Colstrip Project Division, Colstrip, MT 59323
- Industry
- Not classified in OSHA's inspection record.
Complaint Inspection: This inspection record is categorized as a complaint inspection in the DOL OSHA enforcement data. OSHA can open complaint-driven inspections after receiving safety or health complaints from workers or their representatives.
Violations
Violation list (2 of 2 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 01001 | 1910.132 Personal Protective Equipment - General Requirements OSHA citation code: 19100132 A | Other | 1 | 5 | $0 | $0 | Apr 24, 1990 | - | - |
| 01002 | 1904.2 Partial Exemption for Establishments in Certain Industries OSHA citation code: 19040002 A | Other | 2 | 1 | $0 | $0 | Apr 26, 1990 | - | - |
Jan 2, 1990#101461523Jan 2, 1990Complaint (B) · Partial scope, Health#101461523$00 viol.0 violations$0 in penalties
Inspection #101461523
Dates
- Opened
- Jan 2, 1990
- Closing Conference Date
- Jan 16, 1990
- Closed
- Jan 23, 1990
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- Yes
- Number of Employees
- 650
- Related Activity
- 1 complaint
Violations and Penalties
- Total Violations
- 0
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- Montana Power Operations, Colstrip, MT 59323
- Industry
- Not classified in OSHA's inspection record.
Complaint Inspection: This inspection record is categorized as a complaint inspection in the DOL OSHA enforcement data. OSHA can open complaint-driven inspections after receiving safety or health complaints from workers or their representatives.
Nov 3, 1988#100607951Nov 3, 1988Complaint (B) · Partial scope, Safety#100607951$7003 viol.3 violations$700 in penalties
Inspection #100607951
Dates
- Opened
- Nov 3, 1988
- Closing Conference Date
- Nov 4, 1988
- Closed
- Jan 17, 1989
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- Yes
- Number of Employees
- 600
- Related Activity
- 1 complaint
Violations and Penalties
- Total Violations
- 3
- Violation Types
- 1 serious, 2 other-than-serious
- Initial Penalties
- $700
- Penalties on Record
- $700
- Site Address
- Units 1 And 2, Colstrip, MT 59323
- Industry
- Not classified in OSHA's inspection record.
Complaint Inspection: This inspection record is categorized as a complaint inspection in the DOL OSHA enforcement data. OSHA can open complaint-driven inspections after receiving safety or health complaints from workers or their representatives.
Violations
Violation list (3 of 3 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 06001 | 5A0001 General Duty Clause, Section 5(a)(1) | Serious | 1 | 2 | $700 | $700 | Dec 13, 1988 | - | - |
| 07001 | 1910.1200 Hazard Communication OSHA citation code: 19101200 F05 II | Other | 4 | 2 | $0 | $0 | Jan 13, 1989 | - | - |
| 07002 | 1910.1200 Hazard Communication OSHA citation code: 19101200 G01 | Other | 1 | 1 | $0 | $0 | Jan 13, 1989 | - | - |
May 18, 1988#100028828May 18, 1988Complaint (B) · Partial scope, Health#100028828$02 viol.2 violations$0 in penalties
Inspection #100028828
Dates
- Opened
- May 18, 1988
- Closing Conference Date
- May 18, 1988
- Closed
- Jul 12, 1988
Inspection
- Advance Notice
- No
- Owner Type
- Private
- Union Status
- Yes
- Number of Employees
- 675
- Related Activity
- 1 complaint
Violations and Penalties
- Total Violations
- 2
- Violation Types
- 2 other-than-serious
- Initial Penalties
- $0
- Penalties on Record
- $0
- Site Address
- Colstrip Project Division, Colstrip, MT 59323
- Industry
- Not classified in OSHA's inspection record.
Complaint Inspection: This inspection record is categorized as a complaint inspection in the DOL OSHA enforcement data. OSHA can open complaint-driven inspections after receiving safety or health complaints from workers or their representatives.
Violations
Violation list (2 of 2 shown)
| Citation | Standard | Type | Instances | Exposed | Initial | Current | Abatement | Contest | Final Order |
|---|---|---|---|---|---|---|---|---|---|
| 05001 | 1910.37 Maintenance, Safeguards, and Operational Features for Exit Routes OSHA citation code: 19100037 Q01 | Other | 1 | 3 | $0 | $0 | Jul 8, 1988 | - | - |
| 05002 | 1910.37 Maintenance, Safeguards, and Operational Features for Exit Routes OSHA citation code: 19100037 Q02 | Other | 1 | 3 | $0 | $0 | Jul 8, 1988 | - | - |
Penalty amounts may differ from final amounts after settlement or judicial review. How to read these records
About these records
A company page groups inspections with the same normalized employer name, city and state; it is not a legal-entity identifier (how pages are grouped).
This page displays public OSHA enforcement data. Status text follows the DOL inspection record first and may include citation-level context when the inspection feed and citation records are out of sync. Penalty amounts shown reflect the latest penalty amounts on record in the DOL database and may differ from initial assessments or final amounts. This is not an official OSHA resource.
OSHA's public enforcement data does not publish a "guilty" or "not guilty" field for inspections. The closest outcome fields available are the citation counts, penalty amounts, contest dates, final-order dates, and the inspection close date shown on this page. How to interpret these status fields. How initial and current penalties are recorded.
OSHA may publish multiple citation rows in the same inspection with the same standard and penalty fields. Separate rows can still differ in OSHA metadata such as citation identifier, recorded instance count, exposed workers, or gravity value. Contest and Final Order columns show citation-level dates from OSHA's enforcement record. A dash means OSHA's record does not currently show that activity for the citation.
Source: U.S. Department of Labor OSHA incident investigation data (`osha_accident` + `osha_accident_injury`). Linked via `rel_insp_nr` to the inspection activity number (exact government key). Injury, body part, source and event values are OSHA's own codes. OSHA states that these fields are not coded according to the requirements under the Occupational Injury and Illness Classification System (OIICS). Only the values present in the OSHA record are listed; an incident with no value that resolves in OSHA's code table shows "Injury details not recorded". Where a record covers several people, each field lists every value recorded across them.
Source: OSHA chemical exposure sampling data (OSHA Information System). P = Personal (worker breathing zone), A = Area (general air). Rows marked QC are analytical quality control measurements, not chemical exposures. OSHA PEL (Permissible Exposure Limit) values from the OSHA Occupational Chemical Database, matched via IMIS substance code (analyte code) (exact government key).
Understanding These Penalties
The maximum penalty for a serious violation in 2025 is $16,550 per violation. For willful violations, the range is $11,823 to $165,514. The current penalty column shows the latest amount on record in OSHA's database for each citation. When the current penalty differs from the initial penalty, OSHA's records show that the amount changed during the enforcement process, but this page does not determine the specific reason for each change. Penalty amounts are set by OSHA and adjusted annually for inflation.
21 inspections, 1987 to 1999. Each row is one inspection; point at or tap a row for its dates and totals.
Source: DOL OSHA enforcement data (inspections and violations), linked via activity_nr (exact government key).
Penalty changes: Amounts shown reflect what OSHA's enforcement record publishes. The reason for any change is not stated unless OSHA's record explicitly says so.
Short cases: When a case closed soon after it opened, the closed marker is drawn slightly to the right so both markers stay visible. Each row's card shows the exact dates.