Key Takeaway

Mandata Quarry is a active surface mine producing Stone, located in Herndon, Northumberland County, PA. It has 137 violations on record (19 S&S) and $16K in proposed penalties. Operated by Meckley's Limestone Products Inc.

Mandata Quarry

Active Surface Stone

Operator: Meckley's Limestone Products Inc

Controller: Matthew G Markunas

Location: Herndon, Northumberland County, PA

Employees: 23

137
Violations
19
S&S Violations
38
Accidents
$16K
Penalties

Recent Violations

View all 137 →
Date Section S&S Negligence Penalty
10/15/2025 56.14107(a) S&S ModNegligence $267
10/15/2025 56.12008 Non-S&S ModNegligence $151
10/08/2025 56.20003(a) S&S ModNegligence $177
10/07/2025 56.14112(b) Non-S&S ModNegligence $151
07/16/2025 56.11001 S&S ModNegligence $177
07/15/2025 56.12004 Non-S&S ModNegligence $151
01/15/2025 56.4101 S&S ModNegligence $177
01/14/2025 47.44(b) Non-S&S ModNegligence $151
05/01/2024 56.14112(b) Non-S&S ModNegligence $147
07/12/2023 56.14116(a) Non-S&S ModNegligence $143
07/11/2023 46.7(c) Non-S&S LowNegligence $143
07/11/2023 56.15002 S&S LowNegligence $295
01/17/2023 56.14101(a)(2) S&S LowNegligence $252
01/12/2023 56.3200 Non-S&S ModNegligence $143
01/12/2023 56.14107(a) Non-S&S LowNegligence $143
01/12/2023 56.14132(a) Non-S&S LowNegligence $143
06/15/2022 56.11012 Non-S&S ModNegligence $321
06/15/2022 56.14112(b) Non-S&S ModNegligence $144
03/08/2022 56.13021 Non-S&S LowNegligence $133
03/08/2022 56.12034 Non-S&S LowNegligence $133

Accidents & Injuries

View all 38 →
Date Classification Injury Days Lost
02/09/2026 HANDLING OF MATERIALS NO DYS AWY FRM WRK,NO RSTR ACT None
07/10/2024 MACHINERY DAYS AWAY FROM WORK ONLY 4d lost
12/17/2020 SLIP OR FALL OF PERSON DYS AWY FRM WRK & RESTRCTD ACT 5d lost, 41d restricted
12/06/2018 SLIP OR FALL OF PERSON DYS AWY FRM WRK & RESTRCTD ACT 92d lost, 18d restricted
07/11/2018 STEPPING OR KNEELING ON OBJECT NO DYS AWY FRM WRK,NO RSTR ACT None
03/05/2018 HANDTOOLS (NONPOWERED) DAYS RESTRICTED ACTIVITY ONLY 34d restricted
12/29/2017 SLIP OR FALL OF PERSON DAYS RESTRICTED ACTIVITY ONLY 59d restricted
09/07/2017 OTHER DAYS AWAY FROM WORK ONLY 1d lost
08/22/2017 HANDLING OF MATERIALS DAYS AWAY FROM WORK ONLY 212d lost
04/12/2017 HANDTOOLS (NONPOWERED) DAYS AWAY FROM WORK ONLY 4d lost

Inspections

View all 66 →
Begin End Hours Inspectors
10/07/2025 10/16/2025 59.00 1
07/15/2025 07/17/2025 33.00 1
01/13/2025 01/16/2025 39.00 1
05/22/2024 05/22/2024 2.25 1
04/30/2024 05/02/2024 28.25 1
01/09/2024 01/16/2024 30.75 1
07/10/2023 07/17/2023 28.75 1
01/09/2023 01/20/2023 34.25 1
06/14/2022 06/15/2022 14.50 1
03/02/2022 03/09/2022 36.75 1

Mine Details

MSHA Mine ID3600163
Mine TypeSurface
StatusActive
CommodityStone
SIC DescriptionCrushed, Broken Limestone NEC
Employees23
Days/Week5.0
Hours/Shift10.0
Coordinates40.7094440, -76.8425000
Nearest TownHerndon

Frequently Asked Questions

How many MSHA violations does Mandata Quarry have?

Mandata Quarry has 137 MSHA violations on record, of which 19 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $16K.

What type of mine is Mandata Quarry?

Mandata Quarry is a Surface mine producing Stone, located in Herndon, Northumberland County, PA. It currently has 23 employees.

Has anyone been injured or killed at Mandata Quarry?

According to MSHA records, Mandata Quarry has 38 reported accident/injury records and 0 fatalities on file.

Who operates Mandata Quarry?

Mandata Quarry is operated by Meckley's Limestone Products Inc and controlled by Matthew G Markunas. MSHA Mine ID: 3600163.