Coal production
0reported short tons
ACTIVE / CONTROLLER PORTFOLIO
Summit Materials LLC
Membership and operating status are from the latest MSHA Mines snapshot. Open a mine for its ownership history.
MSHA CONTROLLER IDM02046
MINE PORTFOLIO
40 of 40 mines and facilities
2025-01-01 – 2026-10-18. Active 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 |
|---|---|---|---|---|---|---|
| Atoka Quarry3402026 · Active6/8 quarters reported | Atoka, OKSurface · MSHA: Crushed, Broken Limestone NEC | 0 | 36,196 | 3 | 0 | 29.8 |
| Benjamin4202528 · Active6/8 quarters reported | Utah, UTSurface · MSHA: Construction Sand and Gravel | 0 | 26,325 | 10 | 1 | 27.3 |
| Bluffdale Pit4202179 · Active6/8 quarters reported | Utah, UTSurface · MSHA: Construction Sand and Gravel | 0 | 56,197 | 10 | 1 | 31.5 |
| Brigham Pit4202523 · Active6/8 quarters reported | Box Elder, UTSurface · MSHA: Construction Sand and Gravel | 0 | 12,002 | 14 | 0 | 28.5 |
| Coleman Quarry-SCS Materials3402240 · Active6/8 quarters reported | Atoka, OKSurface · MSHA: Dimension Limestone | 0 | 18,816 | 15 | 1 | 40.3 |
| Columbus Plant4104393 · Active6/8 quarters reported | Colorado, TXSurface · MSHA: Construction Sand and Gravel | 0 | 114,329 | 5 | 1 | 33.0 |
| Crusher LU300-LU4004102577 · Active6/8 quarters reported | Glasscock, TXSurface · MSHA: Crushed, Broken Stone NEC | 0 | 59,424 | 7 | 1 | 45.0 |
| Duncan Plant4105187 · Active6/8 quarters reported | Colorado, TXSurface · MSHA: Sand, Industrial NEC | 0 | 60,764 | 7 | 2 | 28.8 |
| Durbin Quarry1401719 · Active6/8 quarters reported | Elk, KSSurface · MSHA: Crushed, Broken Limestone NEC | 0 | 53,668 | 6 | 0 | 26.8 |
| Eagle Lake Plant4104889 · Active6/8 quarters reported | Colorado, TXSurface · MSHA: Construction Sand and Gravel | 0 | 39,728 | 7 | 1 | 39.5 |
| Ellinger Plant4104154 · Active6/8 quarters reported | Fayette, TXSurface · MSHA: Construction Sand and Gravel | 0 | 36,869 | 4 | 0 | 37.5 |
| Erda Pit4201479 · Active6/8 quarters reported | Salt Lake, UTSurface · MSHA: Construction Sand and Gravel | 0 | 6,406 | 0 | 0 | 8.0 |
| Grantsville Pit4202637 · Active6/8 quarters reported | Tooele, UTSurface · MSHA: Construction Sand and Gravel | 0 | 20,412 | 24 | 0 | 45.0 |
| Hanna's Bend Plant4104631 · Active6/8 quarters reported | Liberty, TXSurface · MSHA: Construction Sand and Gravel | 0 | 61,911 | 8 | 1 | 32.5 |
| Hays Quarry4104514 · Active6/8 quarters reported | Hays, TXSurface · MSHA: Crushed, Broken Limestone NEC | 0 | 60,574 | 7 | 2 | 42.3 |
| Herriman Pit4201823 · Active6/8 quarters reported | Salt Lake, UTSurface · MSHA: Construction Sand and Gravel | 0 | 12,948 | 4 | 0 | 22.0 |
| HIGHLAND PIT4200941 · Active6/8 quarters reported | Utah, UTSurface · MSHA: Construction Sand and Gravel | 0 | 36,754 | 19 | 3 | 35.8 |
| Hockley Plant4103491 · Active6/8 quarters reported | Harris, TXSurface · MSHA: Construction Sand and Gravel | 0 | 16,944 | 9 | 0 | 34.0 |
| Hyrum Pit4202360 · Active6/8 quarters reported | Cache, UTSurface · MSHA: Construction Sand and Gravel | 0 | 35,721 | 12 | 0 | 36.5 |
| Maryland Creek0503800 · Active6/8 quarters reported | Summit, COSurface · MSHA: Construction Sand and Gravel | 0 | 25,020 | 17 | 0 | 48.3 |
| MONA PIT4202212 · Active6/8 quarters reported | Juab, UTSurface · MSHA: Construction Sand and Gravel | 0 | 46,643 | 8 | 0 | 37.8 |
| Oxford Sand and Gravel1400522 · Active6/8 quarters reported | Sumner, KSSurface · MSHA: Construction Sand and Gravel | 0 | 36,542 | 18 | 0 | 61.0 |
| Parley's Stone4202102 · Active6/8 quarters reported | Salt Lake, UTSurface · MSHA: Construction Sand and Gravel | 0 | 26,978 | 11 | 0 | 41.8 |
| Pit #1 43rd Ave0202867 · Active6/8 quarters reported | Maricopa, AZSurface · MSHA: Construction Sand and Gravel | 0 | 93,688 | 16 | 3 | 35.3 |
| Plant 1 Avondale0203390 · Active6/8 quarters reported | Maricopa, AZSurface · MSHA: Construction Sand and Gravel | 0 | 28,975 | 19 | 1 | 33.5 |
| Pope's Point3401930 · Active6/8 quarters reported | Bryan, OKSurface · MSHA: Sand, Industrial NEC | 0 | 103,736 | 9 | 0 | 45.5 |
| Portable Plant #21401463 · Active6/8 quarters reported | Crawford, KSSurface · MSHA: Crushed, Broken Stone NEC | 0 | 28,394 | 1 | 2 | 32.3 |
| Portable Plant #31401464 · Active6/8 quarters reported | Wilson, KSSurface · MSHA: Crushed, Broken Limestone NEC | 0 | 26,017 | 7 | 0 | 33.0 |
| Portable Plant #61401828 · Active6/8 quarters reported | Neosho, KSSurface · MSHA: Crushed, Broken Limestone NEC | 0 | 38,719 | 3 | 1 | 33.3 |
| Sawyer Quarry3401950 · Active6/8 quarters reported | Choctaw, OKSurface · MSHA: Crushed, Broken Sandstone | 0 | 233,973 | 11 | 0 | 87.5 |
| SEVERY QUARRY1401584 · Active6/8 quarters reported | Greenwood, KSSurface · MSHA: Crushed, Broken Limestone NEC | 0 | 36,822 | 7 | 0 | 30.0 |
| Smith Plant4105210 · Active6/8 quarters reported | Colorado, TXSurface · MSHA: Crushed, Broken Stone NEC | 0 | 93,064 | 6 | 0 | 36.8 |
| SPRING PLANT4105125 · Active6/8 quarters reported | Harris, TXSurface · MSHA: Construction Sand and Gravel | 0 | 32,124 | 6 | 2 | 40.5 |
| STEWART STONE MITCHELL3401400 · Active6/8 quarters reported | Pawnee, OKSurface · MSHA: Crushed, Broken Limestone NEC | 0 | 61,989 | 15 | 0 | 37.8 |
| Stockton Pit4202480 · Active6/8 quarters reported | Tooele, UTSurface · MSHA: Construction Sand and Gravel | 0 | 51,526 | 10 | 1 | 34.5 |
| Vines Sand & Gravel4103348 · Active6/8 quarters reported | Ward, TXSurface · MSHA: Construction Sand and Gravel | 0 | 32,749 | 4 | 0 | 35.5 |
| Vox Plant4105081 · Active6/8 quarters reported | Colorado, TXSurface · MSHA: Construction Sand and Gravel | 0 | 83,837 | 5 | 0 | 22.8 |
| Washplant 40503809 · Active6/8 quarters reported | La Plata, COSurface · MSHA: Construction Sand and Gravel | 0 | 3,961 | 3 | 0 | 21.0 |
| Wegenhoft Plant4102916 · Active6/8 quarters reported | Fayette, TXSurface · MSHA: Construction Sand and Gravel | 0 | 39,531 | 4 | 0 | 38.0 |
| Wichita Sand and Gravel1400543 · Active6/8 quarters reported | Sedgwick, KSSurface · MSHA: Construction Sand and Gravel | 0 | 40,064 | 30 | 0 | 64.8 |
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
40 of 40 mines with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- Atoka Quarry34.31194, -96.11028Open map ↗
- Benjamin40.10722, -111.79722Open map ↗
- Bluffdale Pit40.48861, -111.95306Open map ↗
- Brigham Pit41.50278, -112.02833Open map ↗
- Coleman Quarry-SCS Materials34.25861, -96.38278Open map ↗
- Columbus Plant29.98583, -96.88694Open map ↗
- Crusher LU300-LU40031.86333, -101.58833Open map ↗
- Duncan Plant29.52194, -96.34111Open map ↗
- Durbin Quarry37.36028, -96.30389Open map ↗
- Eagle Lake Plant29.97139, -96.52306Open map ↗
- Ellinger Plant29.85556, -96.74944Open map ↗
- Erda Pit40.63583, -112.28778Open map ↗
- Grantsville Pit40.50361, -112.49500Open map ↗
- Hanna's Bend Plant30.34139, -95.08556Open map ↗
- Hays Quarry30.10194, -101.00556Open map ↗
- Herriman Pit40.62611, -111.97000Open map ↗
- HIGHLAND PIT40.43556, -111.77000Open map ↗
- Hockley Plant29.96694, -95.83417Open map ↗
- Hyrum Pit41.62500, -111.83250Open map ↗
- Maryland Creek39.69694, -106.10833Open map ↗
- MONA PIT39.81611, -111.85722Open map ↗
- Oxford Sand and Gravel37.30361, -97.14000Open map ↗
- Parley's Stone40.71944, -112.10722Open map ↗
- Pit #1 43rd Ave33.41444, -112.15222Open map ↗
- Plant 1 Avondale33.39028, -112.32611Open map ↗
- Pope's Point33.81556, -96.17333Open map ↗
- Portable Plant #237.41083, -94.70500Open map ↗
- Portable Plant #337.41083, -94.70500Open map ↗
- Portable Plant #637.40583, -94.82667Open map ↗
- Sawyer Quarry34.01361, -95.37167Open map ↗
- SEVERY QUARRY37.63583, -96.26417Open map ↗
- Smith Plant29.52361, -96.49111Open map ↗
- SPRING PLANT30.08917, -95.41444Open map ↗
- STEWART STONE MITCHELL36.33778, -96.80389Open map ↗
- Stockton Pit40.30556, -112.28611Open map ↗
- Vines Sand & Gravel31.53472, -103.12639Open map ↗
- Vox Plant29.89583, -96.74861Open map ↗
- Washplant 437.38778, -107.83861Open map ↗
- Wegenhoft Plant29.82361, -96.79583Open map ↗
- Wichita Sand and Gravel37.78167, -97.38889Open map ↗
Quarterly trends
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-18. All 40 mines listed under this controller were checked; 40 have reports in the available quarters. Totals use current ownership.
Hours worked
1,930,340reported 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 | 273,813 | 0.00 | 542 | 40/40 mines reporting |
| 2025 Q2 | 0 | 295,535 | 0.00 | 531 | 40/40 mines reporting |
| 2025 Q3 | 0 | 324,384 | 0.00 | 536 | 40/40 mines reporting |
| 2025 Q4 | 0 | 304,023 | 0.00 | 560 | 40/40 mines reporting |
| 2026 Q1 | 0 | 371,673 | 0.00 | 523 | 40/40 mines reporting |
| 2026 Q2 | 0 | 360,912 | 0.00 | 501 | 40/40 mines reporting |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-18
Violations
38153 significant & substantial (S&S)
Accident records
240 records classified as fatality
Proposed penalties · USD
143,602.00366 of 381 violations with amounts
On-site inspection hours
1,474.25191 inspections · 191 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 | 45 | 9 | 10,989.00 | 2 | 0 | 25 | 219.5 |
| 2025-Q2 | 92 | 12 | 30,947.00 | 0 | 0 | 31 | 261.3 |
| 2025-Q3 | 40 | 6 | 14,793.00 | 5 | 0 | 27 | 163.5 |
| 2025-Q4 | 45 | 11 | 34,389.00 | 3 | 0 | 24 | 170.3 |
| 2026-Q1 | 77 | 8 | 29,524.00 | 6 | 0 | 31 | 253.8 |
| 2026-Q2 | 38 | 3 | 13,431.00 | 4 | 0 | 23 | 173.8 |
| 2026-Q3 | 38 | 4 | 9,529.00 | 4 | 0 | 26 | 218.3 |
| 2026-Q4 * | 6 | 0 | — | 0 | 0 | 4 | 14.0 |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
- Columbus Plant · 4104393
Regular Safety and Health Inspection · 4.5 on-site hours
- Columbus Plant · 4104393
56.14103(b) · $151.00 proposed
- STEWART STONE MITCHELL · 3401400
Compliance Follow-up Inspection · 1.0 on-site hours
- Eagle Lake Plant · 4104889
Regular Safety and Health Inspection · 11.8 on-site hours
- Eagle Lake Plant · 4104889
56.15001 · $151.00 proposed
- Eagle Lake Plant · 4104889
56.20011 · S&S · $245.00 proposed
- Eagle Lake Plant · 4104889
56.16005 · $151.00 proposed
- Grantsville Pit · 4202637
Verbal Hazard Complaint Inspections · 3.0 on-site hours
- HIGHLAND PIT · 4200941
MACHINERY · DAYS AWAY FROM WORK ONLY
Accident narrative
Employee was struck by a rock
- Smith Plant · 4105210
Regular Safety and Health Inspection · 5.3 on-site hours
- Duncan Plant · 4105187
56.12032 · $151.00 proposed
- Smith Plant · 4105210
56.12018 · $151.00 proposed
- Duncan Plant · 4105187
Regular Safety and Health Inspection · 6.5 on-site hours
- Vox Plant · 4105081
46.4(a)(1) · $151.00 proposed
- Duncan Plant · 4105187
56.20003(c) · $151.00 proposed
- Vox Plant · 4105081
Regular Safety and Health Inspection · 7.8 on-site hours
- STEWART STONE MITCHELL · 3401400
56.14101(a)(2) · $151.00 proposed
- STEWART STONE MITCHELL · 3401400
56.12004 · $151.00 proposed
- Vox Plant · 4105081
56.14100(a) · $151.00 proposed
- STEWART STONE MITCHELL · 3401400
Regular Safety and Health Inspection · 11.3 on-site hours
- STEWART STONE MITCHELL · 3401400
56.14100(b) · $151.00 proposed
- STEWART STONE MITCHELL · 3401400
56.20003(a) · S&S · $226.00 proposed
- STEWART STONE MITCHELL · 3401400
56.11012 · $151.00 proposed
- Sawyer Quarry · 3401950
56.11011 · S&S · $313.00 proposed
- Sawyer Quarry · 3401950
56.14132(a) · $151.00 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
8 linked operators.
Relationships reflect the selected mine status and current MSHA controller/operator fields.