Tri-State Generation and Transmission Assn Inc controller
MSHA controller ID: 0126261
Watch this controller
Email me when a new MSHA incident is filed at any mine Tri-State Generation and Transmission Assn Inc controls.
- Fatalities
- 0
- Total incidents
- 50
- Mines on record
- 2
- Years on record
- 2016–2025
Compliance record
MSHA citations since 2016
61
citations
1
significant & substantial
$18,160
proposed penalties
$16,329
paid to date
90% of proposed penalties paid to date, a $1,831 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2016
41
inspections on record
4,183
inspection hours
1.5
citations per 100 inspection hours
ⓘ
This rate is recorded citations divided by MSHA inspection hours, per 100 hours. It reflects inspection effort, not mine size or production.61 citations across 4,183 inspection hours.
Source: MSHA inspections data, updated weekly.
Penalty disposition
ⓘ
Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.$18K
proposed penalties
$16K
current assessed
$16K
paid to date
$0
outstanding
60 assessments are final orders; 7 contested dockets.
As of the most recent assessment on 2025-03-25.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
Top causes
- HANDLING OF MATERIALS 18 non-fatal
- FIRE 8 non-fatal
- SLIP OR FALL OF PERSON 8 non-fatal
- OTHER 5 non-fatal
- HANDTOOLS (NONPOWERED) 3 non-fatal
- ELECTRICAL 2 non-fatal
Incident timeline
2025
6
2024
2
2023
8
2022
3
2021
8
2020
7
2019
3
2018
3
2017
6
2016
4
Operators under this controller
Mines on record
- Colowyo Mine CO
- New Horizon Mine CO
For insurers, brokers, and safety consultants
The full compliance file on Tri-State Generation and Transmission Assn Inc
A dated report covering the 26-year penalty trail, line-item violation pattern, contest and docket posture, rate-normalized peer benchmark, and full fatality history. Delivered as a PDF with the underlying data as CSV.