Lake Hopatcong Quarry
Active
Surface
Stone
Operator: Weldon Quarry Company LLC
Controller: William Weldon; Robert F Weldon III; Norbert A Weldon
Location: Lake Hopatcong, Sussex County, NJ
Employees: 30
210
Violations
55
S&S Violations
39
Accidents
$50K
Penalties
Recent Violations
View all 210 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 09/04/2025 | 56.14100(b) | S&S | ModNegligence | $592 |
| 09/03/2025 | 56.3131 | Non-S&S | ModNegligence | $151 |
| 09/03/2025 | 56.12004 | Non-S&S | LowNegligence | $151 |
| 09/03/2025 | 56.14107(a) | Non-S&S | ModNegligence | $151 |
| 09/03/2025 | 47.41(a) | Non-S&S | LowNegligence | $151 |
| 09/03/2025 | 56.9300(b) | Non-S&S | ModNegligence | $151 |
| 02/11/2025 | 56.14101(a)(2) | Non-S&S | ModNegligence | $151 |
| 04/04/2024 | 56.12032 | Non-S&S | ModNegligence | $147 |
| 04/03/2024 | 56.12008 | Non-S&S | ModNegligence | $147 |
| 10/11/2023 | 56.14109(a) | Non-S&S | LowNegligence | $143 |
| 10/11/2023 | 56.14112(b) | Non-S&S | ModNegligence | $143 |
| 10/11/2023 | 56.14207 | Non-S&S | ModNegligence | $143 |
| 10/05/2023 | 56.12005 | Non-S&S | ModNegligence | $143 |
| 10/05/2023 | 56.12004 | Non-S&S | ModNegligence | $143 |
| 05/04/2023 | 56.14100(b) | S&S | ModNegligence | $252 |
| 05/03/2023 | 56.14207 | Non-S&S | ModNegligence | $214 |
| 05/02/2023 | 56.14100(b) | Non-S&S | ModNegligence | $143 |
| 05/02/2023 | 56.11002 | Non-S&S | ModNegligence | $143 |
| 05/02/2023 | 56.20003(a) | Non-S&S | ModNegligence | $143 |
| 09/28/2022 | 56.11002 | S&S | ModNegligence | $987 |
Accidents & Injuries
View all 39 →| Date | Classification | Injury | Days Lost |
|---|---|---|---|
| 10/31/2025 | SLIP OR FALL OF PERSON | DAYS AWAY FROM WORK ONLY | None |
| 01/08/2024 | HANDLING OF MATERIALS | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 05/09/2023 | HANDLING OF MATERIALS | DAYS AWAY FROM WORK ONLY | 44d lost |
| 02/02/2023 | MACHINERY | DAYS AWAY FROM WORK ONLY | 11d lost |
| 07/05/2022 | HANDLING OF MATERIALS | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 06/25/2021 | MACHINERY | DAYS AWAY FROM WORK ONLY | 10d lost |
| 05/22/2020 | HANDTOOLS (NONPOWERED) | DAYS AWAY FROM WORK ONLY | 115d lost |
| 01/02/2020 | DISORDERS (REPEATED TRAUMA) | OCCUPATNAL ILLNESS NOT DEG 1-6 | None |
| 01/02/2019 | DISORDERS (REPEATED TRAUMA) | OCCUPATNAL ILLNESS NOT DEG 1-6 | None |
| 01/02/2019 | DISORDERS (REPEATED TRAUMA) | OCCUPATNAL ILLNESS NOT DEG 1-6 | None |
Inspections
View all 65 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 09/18/2025 | 09/18/2025 | 2.50 | 1 |
| 09/02/2025 | 09/04/2025 | 25.50 | 1 |
| 02/10/2025 | 02/21/2025 | 27.50 | 1 |
| 04/03/2024 | 04/08/2024 | 26.50 | 1 |
| 10/05/2023 | 10/12/2023 | 34.50 | 1 |
| 09/20/2023 | 09/20/2023 | 4.00 | 1 |
| 05/17/2023 | 05/17/2023 | 1.25 | 1 |
| 05/10/2023 | 05/10/2023 | 4.25 | 1 |
| 05/02/2023 | 05/04/2023 | 31.75 | 1 |
| 09/26/2022 | 10/18/2022 | 46.50 | 1 |
Mine Details
MSHA Mine ID2800034
Mine TypeSurface
StatusActive
CommodityStone
SIC DescriptionCrushed, Broken Traprock
Employees30
Days/Week5.0
Hours/Shift10.0
Coordinates40.9955560, -74.6163890
Nearest TownLake Hopatcong
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Frequently Asked Questions
How many MSHA violations does Lake Hopatcong Quarry have?
Lake Hopatcong Quarry has 210 MSHA violations on record, of which 55 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $50K.
What type of mine is Lake Hopatcong Quarry?
Lake Hopatcong Quarry is a Surface mine producing Stone, located in Lake Hopatcong, Sussex County, NJ. It currently has 30 employees.
Has anyone been injured or killed at Lake Hopatcong Quarry?
According to MSHA records, Lake Hopatcong Quarry has 39 reported accident/injury records and 0 fatalities on file.
Who operates Lake Hopatcong Quarry?
Lake Hopatcong Quarry is operated by Weldon Quarry Company LLC and controlled by William Weldon; Robert F Weldon III; Norbert A Weldon. MSHA Mine ID: 2800034.