Coal production
0reported short tons
ALL STATUSES / CONTROLLER PORTFOLIO
Mark T Thorson
Membership and operating status are from the latest MSHA Mines snapshot. Open a mine for its ownership history.
MSHA CONTROLLER IDM11588
MINE PORTFOLIO
16 of 16 mines and facilities
2025-01-01 – 2026-10-18. All statuses records; production reporting is not required.
Material, method and type filters apply to this table. The portfolio’s status applies to the entire page. GEM fields describe their own release, not the selected MSHA year.
| Mine | Location / type | Coal · short tons | Hours worked | Violations | Accident records | On-site inspection hours |
|---|---|---|---|---|---|---|
| Mark Sand & Gravel Co. Quarry2103707 · Intermittent6/8 quarters reported | Otter Tail, MNSurface · MSHA: Crushed, Broken Granite | 0 | 0 | 0 | 0 | 0.0 |
| Plant 112102550 · Intermittent6/8 quarters reported | Koochiching, MNSurface · MSHA: Construction Sand and Gravel | 0 | 1,431 | 6 | 0 | 13.8 |
| Plant 122102645 · Intermittent6/8 quarters reported | Becker, MNSurface · MSHA: Construction Sand and Gravel | 0 | 159 | 0 | 0 | 6.5 |
| PLANT 142103286 · Intermittent6/8 quarters reported | Koochiching, MNSurface · MSHA: Crushed, Broken Stone NEC | 0 | 4,545 | 1 | 0 | 17.0 |
| Plant 22103660 · Intermittent6/8 quarters reported | Otter Tail, MNSurface · MSHA: Construction Sand and Gravel | 0 | 2,735 | 12 | 0 | 11.3 |
| PLANT 33200700 · Intermittent6/8 quarters reported | Richland, NDSurface · MSHA: Construction Sand and Gravel | 0 | 1,591 | 1 | 0 | 8.8 |
| Plant 42102641 · Intermittent6/8 quarters reported | Cook, MNSurface · MSHA: Construction Sand and Gravel | 0 | 3,509 | 1 | 0 | 11.5 |
| Plant 52101419 · Intermittent6/8 quarters reported | Otter Tail, MNSurface · MSHA: Construction Sand and Gravel | 0 | 322 | 3 | 0 | 8.0 |
| Plant-62103145 · Intermittent6/8 quarters reported | Otter Tail, MNSurface · MSHA: Construction Sand and Gravel | 0 | 4,325 | 14 | 0 | 22.0 |
| Portable Crusher -1013200805 · Intermittent6/8 quarters reported | Ransom, NDSurface · MSHA: Construction Sand and Gravel | 0 | 5,637 | 0 | 0 | 5.0 |
| Portable Wash Plant2103704 · Intermittent6/8 quarters reported | Otter Tail, MNSurface · MSHA: Construction Sand and Gravel | 0 | 379 | 0 | 0 | 4.0 |
| Underwood Wash Plant2100857 · Intermittent6/8 quarters reported | Otter Tail, MNSurface · MSHA: Construction Sand and Gravel | 0 | 2,408 | 1 | 0 | 6.5 |
| Wipperman Pit & Plant3200261 · Intermittent6/8 quarters reported | Richland, NDSurface · MSHA: Construction Sand and Gravel | 0 | 4,519 | 0 | 0 | 1.8 |
| Bemidji Wash Plant2103433 · Abandoned | Hubbard, MNSurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| CRUSHER PLANT 32100645 · Abandoned | Otter Tail, MNSurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| PIKE PIT & MILL3200175 · Abandoned | Ransom, NDSurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
Production and hours sum available quarterly reports. — means unavailable; zero safety records means none in the selected imported period. Ownership reflects the current MSHA record.
LOCATION
Portfolio map
14 of 16 mines with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- Mark Sand & Gravel Co. Quarry46.28806, -96.11361Open map ↗
- Plant 1148.60528, -93.32667Open map ↗
- Plant 1248.57091, -93.38293Open map ↗
- PLANT 1448.60528, -93.32667Open map ↗
- Plant 246.28583, -96.11306Open map ↗
- PLANT 346.31944, -96.01306Open map ↗
- Plant 446.28583, -96.11306Open map ↗
- Plant 546.28596, -96.11298Open map ↗
- Plant-646.28596, -96.11298Open map ↗
- Portable Crusher -10146.03444, -96.94472Open map ↗
- Portable Wash Plant46.28583, -96.11306Open map ↗
- Underwood Wash Plant46.28583, -96.11306Open map ↗
- Wipperman Pit & Plant46.04222, -96.93639Open map ↗
- PIKE PIT & MILL46.43855, -97.68677Open map ↗
Quarterly trends
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-18. All 16 mines listed under this controller were checked; 13 have reports in the available quarters. Totals use current ownership.
Hours worked
31,560reported employee hours
Tons per hour
0.00production ÷ hours worked
Missing values appear as —. Totals use available reports. Tons per hour requires production and hours for the same quarters and a nonzero hours total. * Striped bars mark partial mine coverage or an incomplete quarter. See the table for coverage.
Quarterly data and reporting coverage
| Quarter | Coal (short tons) | Hours worked | Tons / hour | Avg. employees | Coverage |
|---|---|---|---|---|---|
| 2025 Q1 | 0 | 0 | — | 0 | 13/13 mines reporting |
| 2025 Q2 | 0 | 7,402 | 0.00 | 24 | 13/13 mines reporting |
| 2025 Q3 | 0 | 8,510 | 0.00 | 20 | 13/13 mines reporting |
| 2025 Q4 | 0 | 6,229 | 0.00 | 30 | 13/13 mines reporting |
| 2026 Q1 | 0 | 153 | 0.00 | 6 | 13/13 mines reporting |
| 2026 Q2 | 0 | 9,266 | 0.00 | 22 | 13/13 mines reporting |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-18
Violations
3914 significant & substantial (S&S)
Accident records
00 records classified as fatality
Proposed penalties · USD
8,766.0039 of 39 violations with amounts
On-site inspection hours
116.0027 inspections · 27 with hours
Counts are published records, including contractor records. * The quarter was incomplete at the snapshot date; recent counts may rise as reports arrive. — means no reported amount or hours. Portfolio totals use current membership.
Quarterly safety data
| Quarter | Violations | S&S | Proposed USD | Accident records | Fatality records | Inspections | On-site hours |
|---|---|---|---|---|---|---|---|
| 2025-Q1 | 0 | 0 | — | 0 | 0 | 0 | — |
| 2025-Q2 | 6 | 3 | 1,121.00 | 0 | 0 | 4 | 25.8 |
| 2025-Q3 | 8 | 1 | 1,498.00 | 0 | 0 | 9 | 31.8 |
| 2025-Q4 | 3 | 1 | 668.00 | 0 | 0 | 2 | 5.5 |
| 2026-Q1 | 0 | 0 | — | 0 | 0 | 0 | — |
| 2026-Q2 | 3 | 1 | 1,521.00 | 0 | 0 | 1 | 6.0 |
| 2026-Q3 | 19 | 8 | 3,958.00 | 0 | 0 | 11 | 47.0 |
| 2026-Q4 * | 0 | 0 | — | 0 | 0 | 0 | — |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
- Plant-6 · 2103145
56.14112(a)(1) · $151.00 proposed
- Plant-6 · 2103145
56.12004 · $151.00 proposed
- Plant-6 · 2103145
46.5(a) · S&S · $407.00 proposed
- Plant 11 · 2102550
Special Emphasis Programs · 0.5 on-site hours
- PLANT 14 · 2103286
Special Emphasis Programs · 0.3 on-site hours
- Underwood Wash Plant · 2100857
Regular Safety and Health Inspection · 2.3 on-site hours
- Plant 4 · 2102641
Regular Safety and Health Inspection · 5.0 on-site hours
- PLANT 14 · 2103286
56.11003 · S&S · $151.00 proposed
- PLANT 14 · 2103286
Regular Safety and Health Inspection · 15.0 on-site hours
- Plant 2 · 2103660
Compliance Follow-up Inspection · 1.0 on-site hours
- Plant 2 · 2103660
Regular Safety and Health Inspection · 4.8 on-site hours
- Plant 2 · 2103660
56.18002(b) · $151.00 proposed
- Plant 2 · 2103660
56.9300(b) · S&S · $151.00 proposed
- Plant 2 · 2103660
56.14100(b) · $151.00 proposed
- Plant 2 · 2103660
56.14112(b) · $151.00 proposed
- Plant 2 · 2103660
56.12004 · S&S · $366.00 proposed
Safety sources and definitions
MSHA Violations (issue date), Accidents (accident date), and Inspections (begin date). Snapshot 2026-10-18.
Counts describe published rows, including contractor records; accident records are not distinct incidents or numbers of people injured.
Zero means no matching records in the imported sources, not proof of no events. Historical coverage differs by source; absence before a source begins reporting is not a zero incident rate. Invalid or absent dates and records after the snapshot are excluded.
S&S means SIG_SUB=Y. Fatality records use DEGREE_INJURY_CD=01. Proposed penalties are not final assessed or paid amounts; missing dollar values are omitted.
Inspection hours are SUM_TOTAL_ON_SITE_HOURS attributed to the inspection start date, without supervisor/trainee hours. Missing hours are omitted; a started inspection may still be open.
Portfolio totals use current mine membership, including events before the current owner or operator's tenure.
CFR headings link to the current Title 30 index; they are not historical legal determinations.
SELECTED PORTFOLIO
4 linked operators.
Relationships reflect the selected mine status and current MSHA controller/operator fields.