Coal production
0reported short tons
ALL STATUSES / OPERATOR PORTFOLIO
Tilcon Connecticut Inc
Membership and operating status are from the latest MSHA Mines snapshot. Open a mine for its ownership history.
MSHA OPERATOR IDL15563
MINE PORTFOLIO
19 of 19 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 |
|---|---|---|---|---|---|---|
| Granby Notch Pit0600251 · Intermittent6/8 quarters reported | Hartford, CTSurface · MSHA: Construction Sand and Gravel | 0 | 4,025 | 2 | 0 | 14.3 |
| Griswold Sand & Gravel0600654 · Intermittent6/8 quarters reported | New London, CTSurface · MSHA: Construction Sand and Gravel | 0 | 11,978 | 1 | 0 | 17.0 |
| Jewett City0600393 · Intermittent6/8 quarters reported | New London, CTSurface · MSHA: Construction Sand and Gravel | 0 | 17,926 | 3 | 0 | 14.0 |
| New Britain Quarry0600022 · Active6/8 quarters reported | Hartford, CTSurface · MSHA: Crushed, Broken Traprock | 0 | 175,246 | 17 | 2 | 147.8 |
| North Branford Quarry0600012 · Active6/8 quarters reported | New Haven, CTSurface · MSHA: Crushed, Broken Traprock | 0 | 190,506 | 14 | 5 | 76.5 |
| POWERSCREEN CHIEFTAIN 88.5740230600812 · Intermittent6/8 quarters reported | Hartford, CTSurface · MSHA: Crushed, Broken Stone NEC | 0 | 2,114 | 1 | 0 | 4.8 |
| Powerscreen Chiefton 1700x0600856 · Intermittent2/8 quarters reported | Hartford, CTSurface · MSHA: Crushed, Broken Stone NEC | 0 | 1,616 | 1 | 0 | 5.0 |
| POWERSCREEN WARRIOR 43.5666160600810 · Intermittent6/8 quarters reported | Hartford, CTSurface · MSHA: Construction Sand and Gravel | 0 | 1,109 | 0 | 0 | 5.3 |
| Tilcon Newington Quarry0600003 · Intermittent6/8 quarters reported | Hartford, CTSurface · MSHA: Crushed, Broken Traprock | 0 | 17,031 | 0 | 0 | 20.8 |
| Wallingford Quarry0600013 · Active6/8 quarters reported | New Haven, CTSurface · MSHA: Crushed, Broken Stone NEC | 0 | 91,010 | 4 | 1 | 53.0 |
| Fab Tec0600715 · Abandoned | Windham, CTSurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| Groton Plant0600680 · Abandoned | New London, CTSurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| Monson Sand & Gravel1900338 · Abandoned | Hampden, MASurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| Montville Plant0600677 · Abandoned | New London, CTSurface · MSHA: Crushed, Broken Granite | — | — | 0 | 0 | — |
| Power Screen Warrior0600723 · Abandoned | Windham, CTSurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| Southington Pit & Plant0600345 · Abandoned | Hartford, CTSurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| Southwick Sand & Gravel1901045 · Abandoned | Hampden, MASurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| Tilcon Manchester Quarry0600224 · Abandoned | Hartford, CTSurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| Wauregan Quarry0600015 · Abandoned | Windham, CTSurface · MSHA: Crushed, Broken Traprock | — | — | 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
16 of 19 mines with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- Granby Notch Pit41.98667, -72.79222Open map ↗
- Griswold Sand & Gravel41.53639, -71.89556Open map ↗
- Jewett City41.62435, -71.97217Open map ↗
- New Britain Quarry41.66750, -72.72778Open map ↗
- North Branford Quarry41.33306, -72.79333Open map ↗
- POWERSCREEN CHIEFTAIN 88.57402341.33250, -72.79306Open map ↗
- Powerscreen Chiefton 1700x41.98611, -72.79306Open map ↗
- POWERSCREEN WARRIOR 43.56661641.66750, -72.72778Open map ↗
- Tilcon Newington Quarry41.71917, -72.71306Open map ↗
- Wallingford Quarry41.47417, -72.74500Open map ↗
- Groton Plant41.34083, -72.03889Open map ↗
- Monson Sand & Gravel42.07833, -72.31167Open map ↗
- Montville Plant41.45611, -72.14167Open map ↗
- Southington Pit & Plant41.63944, -72.88944Open map ↗
- Tilcon Manchester Quarry41.77528, -72.52139Open map ↗
- Wauregan Quarry41.75028, -71.89139Open map ↗
Quarterly trends
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-18. All 19 mines listed under this operator were checked; 10 have reports in the available quarters. Totals use current ownership.
Hours worked
512,561reported 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 | 54,989 | 0.00 | 135 | 9/10 mines reporting |
| 2025 Q2 | 0 | 105,449 | 0.00 | 187 | 9/10 mines reporting |
| 2025 Q3 | 0 | 99,068 | 0.00 | 191 | 9/10 mines reporting |
| 2025 Q4 | 0 | 78,162 | 0.00 | 198 | 9/10 mines reporting |
| 2026 Q1 | 0 | 56,845 | 0.00 | 236 | 10/10 mines reporting |
| 2026 Q2 | 0 | 118,048 | 0.00 | 214 | 10/10 mines reporting |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-18
Violations
434 significant & substantial (S&S)
Accident records
80 records classified as fatality
Proposed penalties · USD
7,016.0043 of 43 violations with amounts
On-site inspection hours
358.2533 inspections · 33 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 | 8 | 0 | 1,208.00 | 0 | 0 | 6 | 55.3 |
| 2025-Q2 | 1 | 0 | 267.00 | 1 | 0 | 1 | 15.0 |
| 2025-Q3 | 4 | 0 | 604.00 | 1 | 0 | 7 | 87.8 |
| 2025-Q4 | 10 | 1 | 1,536.00 | 0 | 0 | 4 | 49.3 |
| 2026-Q1 | 6 | 2 | 1,171.00 | 0 | 0 | 6 | 44.0 |
| 2026-Q2 | 14 | 1 | 2,230.00 | 4 | 0 | 5 | 98.0 |
| 2026-Q3 | 0 | 0 | — | 2 | 0 | 4 | 9.0 |
| 2026-Q4 * | 0 | 0 | — | 0 | 0 | 0 | — |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
- New Britain Quarry · 0600022
Regular Safety and Health Inspection · 11.5 on-site hours
- POWERSCREEN CHIEFTAIN 88.574023 · 0600812
Regular Safety and Health Inspection · 2.8 on-site hours
- North Branford Quarry · 0600012
50.30-1(a) · $151.00 proposed
- North Branford Quarry · 0600012
56.12018 · $151.00 proposed
- North Branford Quarry · 0600012
47.41(a) · $151.00 proposed
- North Branford Quarry · 0600012
56.4104(b) · $151.00 proposed
- North Branford Quarry · 0600012
Regular Safety and Health Inspection · 17.5 on-site hours
- Wallingford Quarry · 0600013
46.9(a) · $151.00 proposed
- Wallingford Quarry · 0600013
Regular Safety and Health Inspection · 10.5 on-site hours
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.