Coal production
0reported short tons
ALL STATUSES / CONTROLLER PORTFOLIO
Elementia Materiales
Membership and operating status are from the latest MSHA Mines snapshot. Open a mine for its ownership history.
MSHA CONTROLLER ID0139981
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 |
|---|---|---|---|---|---|---|
| KEYSTONE CEMENT COMPANY3600125 · Active6/8 quarters reported | Northampton, PAFacility · MSHA: Cement | 0 | 424,594 | 121 | 4 | 333.8 |
| Augusta Wash Plant1700585 · Abandoned | Kennebec, MESurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| CHAPMAN PIT1700493 · Abandoned | Aroostook, MESurface · MSHA: Crushed, Broken Traprock | — | — | 0 | 0 | — |
| Ellsworth Plant1700255 · Abandoned | Hancock, MESurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| Fairfield Plant1700120 · Abandoned | Somerset, MESurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| Farmington Plant1700296 · Abandoned | Franklin, MESurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| Lisbon Pit1700145 · Abandoned | Androscoggin, MESurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| MADAWASKA PLANT1700331 · Abandoned | Aroostook, MESurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| Naples Plant1700405 · Abandoned | Cumberland, MESurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| Ocean Ave Plant1700231 · Abandoned | Cumberland, MESurface · MSHA: Crushed, Broken Stone NEC | — | — | 0 | 0 | — |
| Portable 11700431 · Abandoned | Knox, MESurface · MSHA: Crushed, Broken Limestone NEC | — | — | 0 | 0 | — |
| Portable 21700169 · Abandoned | Oxford, MESurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| Portable 31700590 · Abandoned | Knox, MESurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| Presque Isle1700240 · Abandoned | Aroostook, MESurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| THOMASTON CEMENT PLANT1700022 · Abandoned | Knox, MEFacility · MSHA: Cement | — | — | 0 | 0 | — |
| Union Plant1700007 · Abandoned | Knox, MESurface · MSHA: Crushed, Broken Limestone NEC | — | — | 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
3 of 16 mines with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- KEYSTONE CEMENT COMPANY40.70917, -75.40556Open map ↗
- MADAWASKA PLANT47.32083, -68.38222Open map ↗
- THOMASTON CEMENT PLANT44.08056, -69.17389Open map ↗
Quarterly trends
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-18. All 16 mines listed under this controller were checked; 1 have reports in the available quarters. Totals use current ownership.
Hours worked
424,594reported 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 | 74,570 | 0.00 | 141 | 1/1 mines reporting |
| 2025 Q2 | 0 | 76,715 | 0.00 | 145 | 1/1 mines reporting |
| 2025 Q3 | 0 | 76,636 | 0.00 | 150 | 1/1 mines reporting |
| 2025 Q4 | 0 | 71,137 | 0.00 | 144 | 1/1 mines reporting |
| 2026 Q1 | 0 | 66,392 | 0.00 | 142 | 1/1 mines reporting |
| 2026 Q2 | 0 | 59,144 | 0.00 | 169 | 1/1 mines reporting |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-18
Violations
12140 significant & substantial (S&S)
Accident records
40 records classified as fatality
Proposed penalties · USD
344,569.00120 of 121 violations with amounts
On-site inspection hours
333.7511 inspections · 11 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 | 23 | 2 | 7,276.00 | 0 | 0 | 1 | 48.3 |
| 2025-Q2 | 0 | 0 | — | 0 | 0 | 0 | — |
| 2025-Q3 | 24 | 7 | 50,328.00 | 0 | 0 | 3 | 82.0 |
| 2025-Q4 | 55 | 22 | 250,176.00 | 1 | 0 | 2 | 138.0 |
| 2026-Q1 | 2 | 0 | 302.00 | 1 | 0 | 1 | 2.0 |
| 2026-Q2 | 5 | 2 | 15,411.00 | 1 | 0 | 3 | 62.0 |
| 2026-Q3 | 12 | 7 | 21,076.00 | 1 | 0 | 1 | 1.5 |
| 2026-Q4 * | 0 | 0 | — | 0 | 0 | 0 | — |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
- KEYSTONE CEMENT COMPANY · 3600125
56.20003(a) · $2,712.00 proposed
- KEYSTONE CEMENT COMPANY · 3600125
56.20003(a) · S&S · $13,436.00 proposed
- KEYSTONE CEMENT COMPANY · 3600125
56.14107(a) · S&S · $1,968.00 proposed
- KEYSTONE CEMENT COMPANY · 3600125
56.20003(a) · S&S · $4,047.00 proposed
- KEYSTONE CEMENT COMPANY · 3600125
56.20003(a) · S&S · $4,047.00 proposed
- KEYSTONE CEMENT COMPANY · 3600125
56.20003(a) · S&S · $4,047.00 proposed
- KEYSTONE CEMENT COMPANY · 3600125
56.14112(a)(1) · $883.00 proposed
- KEYSTONE CEMENT COMPANY · 3600125
56.14112(a)(1) · $4,383.00 proposed
- KEYSTONE CEMENT COMPANY · 3600125
56.14100(b) · $1,320.00 proposed
- KEYSTONE CEMENT COMPANY · 3600125
HANDLING OF MATERIALS · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
Miner was emptying dust collector, material flushed going in both eyes under glasses. Miner sent to emergency room, both eyes flushed out, eyes drops prescribe making this a reportable injury. Miner was released to full duty on 11/7/2025 after follow up appointment.
- KEYSTONE CEMENT COMPANY · 3600125
Compliance Follow-up Inspection · 0.5 on-site hours
- KEYSTONE CEMENT COMPANY · 3600125
Compliance Follow-up Inspection · 2.0 on-site hours
- KEYSTONE CEMENT COMPANY · 3600125
56.20003(a) · $549.00 proposed
- KEYSTONE CEMENT COMPANY · 3600125
56.20003(a) · S&S · $2,712.00 proposed
- KEYSTONE CEMENT COMPANY · 3600125
56.16005 · $151.00 proposed
- KEYSTONE CEMENT COMPANY · 3600125
56.20003(a) · $245.00 proposed
- KEYSTONE CEMENT COMPANY · 3600125
56.14107(a) · S&S · $313.00 proposed
- KEYSTONE CEMENT COMPANY · 3600125
56.16005 · $151.00 proposed
- KEYSTONE CEMENT COMPANY · 3600125
56.20003(a) · $549.00 proposed
- KEYSTONE CEMENT COMPANY · 3600125
56.20003(a) · S&S · $29,904.00 proposed
- KEYSTONE CEMENT COMPANY · 3600125
56.14207 · $151.00 proposed
- KEYSTONE CEMENT COMPANY · 3600125
56.14132(b)(1) · $165.00 proposed
- KEYSTONE CEMENT COMPANY · 3600125
56.14101(a)(2) · $151.00 proposed
- KEYSTONE CEMENT COMPANY · 3600125
56.14100(d) · $151.00 proposed
- KEYSTONE CEMENT COMPANY · 3600125
56.14203 · S&S · $4,047.00 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
2 linked operators.
Relationships reflect the selected mine status and current MSHA controller/operator fields.