Coal production
0reported short tons
ACTIVE / OPERATOR PORTFOLIO
Mulzer Crushed Stone Inc
Membership and operating status are from the latest MSHA Mines snapshot. Open a mine for its ownership history.
MSHA OPERATOR IDL00309
MINE PORTFOLIO
9 of 9 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 |
|---|---|---|---|---|---|---|
| Cape Sandy #11200084 · Active6/8 quarters reported | Crawford, INSurface · MSHA: Crushed, Broken Limestone NEC | 0 | 352,441 | 45 | 7 | 394.0 |
| Charlestown Quarry1201720 · Active6/8 quarters reported | Clark, INSurface · MSHA: Crushed, Broken Limestone NEC | 0 | 75,231 | 1 | 2 | 83.5 |
| DON C. RUSHING1504272 · Active6/8 quarters reported | Spencer, KYSurface · MSHA: Construction Sand and Gravel | 0 | 16,006 | 4 | 0 | 69.8 |
| Griffin Plant1200890 · Active6/8 quarters reported | Posey, INSurface · MSHA: Construction Sand and Gravel | 0 | 10,447 | 2 | 0 | 33.0 |
| I-69 Sand Pit1202129 · Active6/8 quarters reported | Vanderburgh, INSurface · MSHA: Construction Sand and Gravel | 0 | 3,908 | 13 | 0 | 90.5 |
| New Amsterdam Quarry1202236 · Active6/8 quarters reported | Harrison, INSurface · MSHA: Crushed, Broken Limestone NEC | 0 | 103,930 | 3 | 2 | 84.0 |
| Riverside Stone1518549 · Active6/8 quarters reported | Meade, KYSurface · MSHA: Crushed, Broken Limestone NEC | 0 | 79,515 | 5 | 1 | 133.5 |
| Temple Quarry1200839 · Active6/8 quarters reported | Crawford, INSurface · MSHA: Crushed, Broken Limestone NEC | 0 | 75,699 | 7 | 1 | 163.0 |
| Tower Quarry1201438 · Active6/8 quarters reported | Crawford, INSurface · MSHA: Crushed, Broken Limestone NEC | 0 | 15,241 | 1 | 0 | 63.0 |
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
9 of 9 mines with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- Cape Sandy #138.13556, -86.37611Open map ↗
- Charlestown Quarry38.45806, -85.58583Open map ↗
- DON C. RUSHING37.77583, -87.13667Open map ↗
- Griffin Plant38.19667, -87.90806Open map ↗
- I-69 Sand Pit37.93278, -87.50222Open map ↗
- New Amsterdam Quarry38.06361, -86.26333Open map ↗
- Riverside Stone38.11306, -86.38278Open map ↗
- Temple Quarry38.34389, -86.40583Open map ↗
- Tower Quarry38.23278, -86.32806Open map ↗
Quarterly trends
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-18. All 9 mines listed under this operator were checked; 9 have reports in the available quarters. Totals use current ownership.
Hours worked
732,418reported 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 | 122,727 | 0.00 | 201 | 9/9 mines reporting |
| 2025 Q2 | 0 | 126,843 | 0.00 | 208 | 9/9 mines reporting |
| 2025 Q3 | 0 | 124,396 | 0.00 | 207 | 9/9 mines reporting |
| 2025 Q4 | 0 | 116,939 | 0.00 | 194 | 9/9 mines reporting |
| 2026 Q1 | 0 | 115,979 | 0.00 | 190 | 9/9 mines reporting |
| 2026 Q2 | 0 | 125,534 | 0.00 | 205 | 9/9 mines reporting |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-18
Violations
815 significant & substantial (S&S)
Accident records
130 records classified as fatality
Proposed penalties · USD
18,502.0077 of 81 violations with amounts
On-site inspection hours
1,114.2562 inspections · 62 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 | 2 | 0 | 151.00 | 4 | 0 | 4 | 57.5 |
| 2025-Q2 | 17 | 0 | 2,584.00 | 1 | 0 | 9 | 220.0 |
| 2025-Q3 | 18 | 2 | 3,400.00 | 3 | 0 | 21 | 201.0 |
| 2025-Q4 | 20 | 3 | 8,871.00 | 0 | 0 | 7 | 297.0 |
| 2026-Q1 | 2 | 0 | 302.00 | 0 | 0 | 4 | 26.5 |
| 2026-Q2 | 17 | 0 | 2,892.00 | 3 | 0 | 9 | 176.8 |
| 2026-Q3 | 5 | 0 | 302.00 | 2 | 0 | 6 | 127.0 |
| 2026-Q4 * | 0 | 0 | — | 0 | 0 | 2 | 8.5 |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
- DON C. RUSHING · 1504272
56.4200(a)(2) · $177.00 proposed
- I-69 Sand Pit · 1202129
Verbal Hazard Complaint Inspections · 4.0 on-site hours
- I-69 Sand Pit · 1202129
Verbal Hazard Complaint Inspections · 0.0 on-site hours
- I-69 Sand Pit · 1202129
Spot Inspection · 15.0 on-site hours
- I-69 Sand Pit · 1202129
56.12028 · $151.00 proposed
- I-69 Sand Pit · 1202129
56.12030 · $151.00 proposed
- I-69 Sand Pit · 1202129
56.12032 · $151.00 proposed
- I-69 Sand Pit · 1202129
47.41(a) · $151.00 proposed
- I-69 Sand Pit · 1202129
56.12018 · $151.00 proposed
- Riverside Stone · 1518549
Verbal Hazard Complaint Inspections · 6.5 on-site hours
- Riverside Stone · 1518549
56.14107(a) · S&S · $366.00 proposed
- DON C. RUSHING · 1504272
Regular Safety and Health Inspection · 17.0 on-site hours
- Riverside Stone · 1518549
SLIP OR FALL OF PERSON · DAYS RESTRICTED ACTIVITY ONLY
Accident narrative
Employee was getting out of their truck to use the restroom and missed the first flex step and fell to the ground landing on their butt and lower back. Accident currently under investigation.
- I-69 Sand Pit · 1202129
Regular Safety and Health Inspection · 18.0 on-site hours
- Griffin Plant · 1200890
Special Emphasis Programs · 1.0 on-site hours
- Riverside Stone · 1518549
Special Emphasis Programs · 1.0 on-site hours
- Cape Sandy #1 · 1200084
HANDLING OF MATERIALS · DAYS RESTRICTED ACTIVITY ONLY
Accident narrative
Employee was lying on their back trying to get a rock unstuck from a plugged chute when a larger rock rolled off the belt and hit them on the left knee.
- Griffin Plant · 1200890
Regular Safety and Health Inspection · 6.0 on-site hours
- Griffin Plant · 1200890
56.4201(a)(1) · $151.00 proposed
- Temple Quarry · 1200839
Regular Safety and Health Inspection · 31.0 on-site hours
- Tower Quarry · 1201438
Regular Safety and Health Inspection · 7.0 on-site hours
- DON C. RUSHING · 1504272
Spot Inspection · 7.0 on-site hours
- Griffin Plant · 1200890
Spot Inspection · 11.0 on-site hours
- Cape Sandy #1 · 1200084
Spot Inspection · 4.0 on-site hours
- Cape Sandy #1 · 1200084
56.14100(c) · $168.00 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
1 linked controller.
Relationships reflect the selected mine status and current MSHA controller/operator fields.