Key Takeaway
Downingtown Quarry is a active surface mine producing Stone, located in Downingtown, Chester County, PA. It has 449 violations on record (120 S&S) and $334K in proposed penalties. Operated by Heidelberg Materials Northeast LLC.
Downingtown Quarry
Operator: Heidelberg Materials Northeast LLC
Controller: Heidelberg Materials AG
Location: Downingtown, Chester County, PA
Employees: 58
Recent Violations
View all 449 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 01/29/2026 | 46.9(a) | Non-S&S | ModNegligence | $151 |
| 01/28/2026 | 56.11001 | S&S | LowNegligence | $0 |
| 01/28/2026 | 56.14130(g) | S&S | LowNegligence | $549 |
| 01/28/2026 | 56.14132(a) | Non-S&S | LowNegligence | $0 |
| 01/28/2026 | 56.14100(a) | Non-S&S | ModNegligence | $0 |
| 01/22/2026 | 56.20003(a) | Non-S&S | ModNegligence | $1,126 |
| 01/22/2026 | 56.12004 | Non-S&S | LowNegligence | $151 |
| 01/22/2026 | 56.14207 | Non-S&S | ModNegligence | $0 |
| 01/22/2026 | 56.4201(a)(1) | Non-S&S | ModNegligence | $0 |
| 01/22/2026 | 56.4602 | Non-S&S | ModNegligence | $0 |
| 01/22/2026 | 56.12004 | Non-S&S | ModNegligence | $0 |
| 01/22/2026 | 56.14107(a) | Non-S&S | ModNegligence | $0 |
| 01/21/2026 | 56.11001 | S&S | LowNegligence | $697 |
| 01/21/2026 | 56.14100(b) | Non-S&S | ModNegligence | $151 |
| 01/21/2026 | 56.18002(a) | Non-S&S | ModNegligence | $465 |
| 09/17/2025 | 56.14100(b) | Non-S&S | LowNegligence | $151 |
| 09/16/2025 | 56.14100(b) | Non-S&S | LowNegligence | $151 |
| 09/10/2025 | 56.11010 | Non-S&S | LowNegligence | $151 |
| 09/09/2025 | 56.9300(b) | Non-S&S | LowNegligence | $151 |
| 09/09/2025 | 56.20003(a) | Non-S&S | ModNegligence | $1,126 |
Accidents & Injuries
View all 67 →| Date | Classification | Injury | Days Lost |
|---|---|---|---|
| 01/19/2026 | SLIP OR FALL OF PERSON | DAYS AWAY FROM WORK ONLY | None |
| 07/07/2025 | POWERED HAULAGE | DYS AWY FRM WRK & RESTRCTD ACT | 1d lost, 10d restricted |
| 03/11/2025 | HANDLING OF MATERIALS | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 02/29/2024 | HANDLING OF MATERIALS | DAYS RESTRICTED ACTIVITY ONLY | 52d restricted |
| 02/15/2024 | HANDTOOLS (NONPOWERED) | DAYS AWAY FROM WORK ONLY | 340d lost |
| 11/16/2023 | HANDLING OF MATERIALS | DAYS RESTRICTED ACTIVITY ONLY | 21d restricted |
| 05/24/2023 | STEPPING OR KNEELING ON OBJECT | DYS AWY FRM WRK & RESTRCTD ACT | 1d lost, 4d restricted |
| 05/22/2023 | SLIP OR FALL OF PERSON | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 10/12/2022 | POWERED HAULAGE | DAYS RESTRICTED ACTIVITY ONLY | 41d restricted |
| 08/20/2022 | ELECTRICAL | DAYS AWAY FROM WORK ONLY | 115d lost |
Inspections
View all 112 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 02/09/2026 | 02/09/2026 | 0.50 | 1 |
| 01/20/2026 | 01/29/2026 | 45.25 | 1 |
| 09/15/2025 | 09/15/2025 | 11.00 | 1 |
| 09/08/2025 | 09/17/2025 | 62.25 | 1 |
| 06/30/2025 | 07/02/2025 | 17.00 | 1 |
| 03/21/2025 | 03/28/2025 | 13.75 | 1 |
| 03/07/2025 | 03/21/2025 | 0.75 | 1 |
| 02/10/2025 | 02/11/2025 | 9.25 | 1 |
| 01/27/2025 | 01/30/2025 | 45.00 | 1 |
| 07/17/2024 | 09/03/2024 | 12.75 | 1 |
Mine Details
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Frequently Asked Questions
How many MSHA violations does Downingtown Quarry have?
Downingtown Quarry has 449 MSHA violations on record, of which 120 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $334K.
What type of mine is Downingtown Quarry?
Downingtown Quarry is a Surface mine producing Stone, located in Downingtown, Chester County, PA. It currently has 58 employees.
Has anyone been injured or killed at Downingtown Quarry?
According to MSHA records, Downingtown Quarry has 67 reported accident/injury records and 0 fatalities on file.
Who operates Downingtown Quarry?
Downingtown Quarry is operated by Heidelberg Materials Northeast LLC and controlled by Heidelberg Materials AG. MSHA Mine ID: 3600029.