Coal production
0reported short tons
ACTIVE / CONTROLLER PORTFOLIO
Imerys S A
Membership and operating status are from the latest MSHA Mines snapshot. Open a mine for its ownership history.
MSHA CONTROLLER IDM11763
MINE PORTFOLIO
27 of 27 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 |
|---|---|---|---|---|---|---|
| Barbour County Mines0101565 · Active6/8 quarters reported | Barbour, ALSurface · MSHA: Clay, Ceramic, Refractory Mnls. | 0 | 5,576 | 0 | 0 | 11.8 |
| Battleground Mill3100381 · Active6/8 quarters reported | Cleveland, NCSurface · MSHA: Mica | 0 | 9,552 | 6 | 0 | 25.3 |
| Chesapeake Plant4405046 · Active6/8 quarters reported | Chesapeake (City), VAFacility · MSHA: Cement | 0 | 387,958 | 3 | 2 | 114.0 |
| Crenshaw Mine and Plant2200032 · Active6/8 quarters reported | Panola, MSSurface · MSHA: Kaolin and Ball Clay | 0 | 55,976 | 4 | 0 | 52.5 |
| Fernley Plant2600816 · Active6/8 quarters reported | Lyon, NVSurface · MSHA: Diatomaceous Earth (Diatomite) | 0 | 55,956 | 0 | 1 | 18.3 |
| Gleason Mills and Mines4001052 · Active6/8 quarters reported | Weakley, TNSurface · MSHA: Common Clays NEC | 0 | 149,475 | 32 | 1 | 93.3 |
| Imerys Chatsworth Operations0901094 · Active6/8 quarters reported | Murray, GAFacility · MSHA: Crushed, Broken Marble | 0 | 77,608 | 9 | 0 | 89.0 |
| Imerys Cisco Mine0901101 · Active6/8 quarters reported | Murray, GAUnderground · MSHA: Crushed, Broken Limestone NEC | 0 | 28,722 | 11 | 1 | 158.3 |
| Imerys Lompoc Plant0402848 · Active6/8 quarters reported | Santa Barbara, CASurface · MSHA: Diatomaceous Earth (Diatomite) | 0 | 601,882 | 99 | 3 | 271.3 |
| IMERYS SYLACAUGA OPERATIONS0100011 · Active6/8 quarters reported | Talladega, ALSurface · MSHA: Crushed, Broken Marble | 0 | 854,040 | 27 | 2 | 209.3 |
| Kentucky-Tennessee Clay Company0900121 · Active6/8 quarters reported | Washington, GASurface · MSHA: Common Clays NEC | 0 | 81,776 | 15 | 1 | 68.5 |
| K-T Clay Company3800052 · Active6/8 quarters reported | Aiken, SCSurface · MSHA: Common Clays NEC | 0 | 100,048 | 34 | 3 | 120.8 |
| MACON COUNTY MINES0900340 · Active6/8 quarters reported | Macon, GASurface · MSHA: Common Clays NEC | 0 | 51,982 | 2 | 0 | 38.0 |
| Moss Mill & Mines3100273 · Active6/8 quarters reported | Cleveland, NCSurface · MSHA: Mica | 0 | 30,311 | 3 | 0 | 52.0 |
| MULCOA PLANT #10900339 · Active6/8 quarters reported | Sumter, GAFacility · MSHA: Common Clays NEC | 0 | 154,042 | 4 | 1 | 65.3 |
| MULCOA PLANT NO 20900188 · Active6/8 quarters reported | Sumter, GAFacility · MSHA: Common Clays NEC | 0 | 358,736 | 28 | 0 | 202.3 |
| New York Mine0900030 · Active6/8 quarters reported | Pickens, GAUnderground · MSHA: Crushed, Broken Marble | 0 | 349,909 | 57 | 1 | 429.5 |
| Patterson Mine and Mill3100274 · Active6/8 quarters reported | Cleveland, NCFacility · MSHA: Mica | 0 | 15,357 | 6 | 2 | 39.5 |
| Quincy WA Mine4503480 · Active6/8 quarters reported | Grant, WASurface · MSHA: Diatomaceous Earth (Diatomite) | 0 | 33,623 | 1 | 1 | 31.0 |
| Quincy WA Plant4500939 · Active6/8 quarters reported | Grant, WASurface · MSHA: Misc. Nonmetallic Mnls. NEC | 0 | 111,066 | 29 | 3 | 79.8 |
| Sandersville Calcine Plant0900111 · Active6/8 quarters reported | Washington, GAFacility · MSHA: Kaolin and Ball Clay | 0 | 176,234 | 19 | 1 | 106.5 |
| Sandersville Land and Mines0900705 · Active6/8 quarters reported | Washington, GASurface · MSHA: Kaolin and Ball Clay | 0 | 36,568 | 1 | 0 | 28.3 |
| Superior Pit & Mill0201136 · Active6/8 quarters reported | Pinal, AZSurface · MSHA: Perlite | 0 | 20,301 | 3 | 0 | 12.5 |
| Tucker Hill Mill3503433 · Active6/8 quarters reported | Lake, ORFacility · MSHA: Perlite | 0 | 38,532 | 12 | 0 | 26.0 |
| TUCKER HILL QUARRY3503432 · Active6/8 quarters reported | Lake, ORSurface · MSHA: Perlite | 0 | 14,068 | 11 | 0 | 32.8 |
| Whitestone Mine #40900047 · Active6/8 quarters reported | Pickens, GAUnderground · MSHA: Crushed, Broken Marble | 0 | 183,630 | 9 | 4 | 314.3 |
| WILLSBORO MINE (FOX KNOLL)3000644 · Active6/8 quarters reported | Essex, NYSurface · MSHA: Wollastonite | 0 | 121,090 | 125 | 4 | 240.5 |
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
27 of 27 mines with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- Barbour County Mines31.78944, -85.24667Open map ↗
- Battleground Mill35.21972, -81.36889Open map ↗
- Chesapeake Plant36.81417, -76.28722Open map ↗
- Crenshaw Mine and Plant34.45333, -90.20472Open map ↗
- Fernley Plant39.60889, -119.25000Open map ↗
- Gleason Mills and Mines36.19972, -88.59417Open map ↗
- Imerys Chatsworth Operations34.76722, -84.76528Open map ↗
- Imerys Cisco Mine34.96722, -84.66583Open map ↗
- Imerys Lompoc Plant34.60889, -120.46417Open map ↗
- IMERYS SYLACAUGA OPERATIONS33.16194, -86.29806Open map ↗
- Kentucky-Tennessee Clay Company33.01583, -82.94306Open map ↗
- K-T Clay Company33.49806, -81.84056Open map ↗
- MACON COUNTY MINES32.19611, -84.14000Open map ↗
- Moss Mill & Mines35.21472, -81.37694Open map ↗
- MULCOA PLANT #132.19611, -84.14000Open map ↗
- MULCOA PLANT NO 232.19611, -84.14000Open map ↗
- New York Mine34.43472, -84.34972Open map ↗
- Patterson Mine and Mill35.25861, -81.34694Open map ↗
- Quincy WA Mine47.08000, -119.87583Open map ↗
- Quincy WA Plant47.24139, -119.83778Open map ↗
- Sandersville Calcine Plant32.96611, -82.82000Open map ↗
- Sandersville Land and Mines33.02444, -82.97278Open map ↗
- Superior Pit & Mill33.28750, -111.12361Open map ↗
- Tucker Hill Mill42.21056, -120.35944Open map ↗
- TUCKER HILL QUARRY42.58472, -120.44806Open map ↗
- Whitestone Mine #434.50917, -84.50500Open map ↗
- WILLSBORO MINE (FOX KNOLL)44.35861, -73.40361Open map ↗
Quarterly trends
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-18. All 27 mines listed under this controller were checked; 27 have reports in the available quarters. Totals use current ownership.
Hours worked
4,104,018reported 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 | 655,924 | 0.00 | 1,296 | 27/27 mines reporting |
| 2025 Q2 | 0 | 713,455 | 0.00 | 1,310 | 27/27 mines reporting |
| 2025 Q3 | 0 | 710,713 | 0.00 | 1,286 | 27/27 mines reporting |
| 2025 Q4 | 0 | 672,568 | 0.00 | 1,295 | 27/27 mines reporting |
| 2026 Q1 | 0 | 692,797 | 0.00 | 1,276 | 27/27 mines reporting |
| 2026 Q2 | 0 | 658,561 | 0.00 | 1,259 | 27/27 mines reporting |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-18
Violations
550108 significant & substantial (S&S)
Accident records
310 records classified as fatality
Proposed penalties · USD
449,338.00523 of 550 violations with amounts
On-site inspection hours
2,930.00165 inspections · 165 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 | 96 | 20 | 43,119.00 | 4 | 0 | 26 | 319.0 |
| 2025-Q2 | 73 | 15 | 139,236.00 | 1 | 0 | 28 | 428.0 |
| 2025-Q3 | 60 | 8 | 52,920.00 | 3 | 0 | 20 | 342.5 |
| 2025-Q4 | 43 | 6 | 20,487.00 | 8 | 0 | 13 | 288.0 |
| 2026-Q1 | 109 | 30 | 91,159.00 | 6 | 0 | 28 | 603.3 |
| 2026-Q2 | 100 | 17 | 92,631.00 | 4 | 0 | 19 | 476.5 |
| 2026-Q3 | 49 | 8 | 9,786.00 | 5 | 0 | 25 | 345.5 |
| 2026-Q4 * | 20 | 4 | — | 0 | 0 | 6 | 127.3 |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
- K-T Clay Company · 3800052
56.14112(b) · $642.00 proposed
- Imerys Cisco Mine · 0901101
57.4102 · $151.00 proposed
- Imerys Cisco Mine · 0901101
Regular Safety and Health Inspection · 22.5 on-site hours
- Whitestone Mine #4 · 0900047
57.11012 · $267.00 proposed
- Quincy WA Mine · 4503480
OTHER · DAYS RESTRICTED ACTIVITY ONLY
Accident narrative
Injured person was working on the hydraulic system of a D8 Bulldozer in the morning. Had to access the system below the floorboards of the equipment, and was working in an awkward position. Later in the day, they experienced pain in side/stomach and left work to seek medical care. At the hospital the employee was evaluated for back pain and prescribed hydrocodone.
- Whitestone Mine #4 · 0900047
57.4102 · $151.00 proposed
- Crenshaw Mine and Plant · 2200032
56.14100(a) · $151.00 proposed
- Whitestone Mine #4 · 0900047
Regular Safety and Health Inspection · 42.3 on-site hours
- Crenshaw Mine and Plant · 2200032
Regular Safety and Health Inspection · 20.0 on-site hours
- Sandersville Calcine Plant · 0900111
SLIP OR FALL OF PERSON · DAYS RESTRICTED ACTIVITY ONLY
Accident narrative
Employees knee buckled while descending the stairs and employee fell and twisted their knee.
- MULCOA PLANT NO 2 · 0900188
56.14209(b) · $151.00 proposed
- MULCOA PLANT NO 2 · 0900188
56.14107(a) · $151.00 proposed
- MULCOA PLANT NO 2 · 0900188
56.14107(a) · $151.00 proposed
- MULCOA PLANT NO 2 · 0900188
56.12004 · $151.00 proposed
- MULCOA PLANT NO 2 · 0900188
56.16001 · $151.00 proposed
- MULCOA PLANT NO 2 · 0900188
56.12004 · $151.00 proposed
- MULCOA PLANT NO 2 · 0900188
47.44(b) · $151.00 proposed
- MULCOA PLANT NO 2 · 0900188
56.12068 · $151.00 proposed
- MULCOA PLANT NO 2 · 0900188
56.12018 · $151.00 proposed
- MULCOA PLANT NO 2 · 0900188
Regular Safety and Health Inspection · 51.3 on-site hours
- MULCOA PLANT NO 2 · 0900188
47.44(b) · $151.00 proposed
- MULCOA PLANT NO 2 · 0900188
56.16006 · $151.00 proposed
- MULCOA PLANT #1 · 0900339
Regular Safety and Health Inspection · 17.0 on-site hours
- MACON COUNTY MINES · 0900340
Regular Safety and Health Inspection · 8.0 on-site hours
- MACON COUNTY MINES · 0900340
47.44(b) · $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
9 linked operators.
Relationships reflect the selected mine status and current MSHA controller/operator fields.