Key Takeaway
Harris Quarry is a active surface mine producing Stone, located in PORTALBE, Mendocino County, CA. It has 135 violations on record (43 S&S) and $24K in proposed penalties. Operated by Northern Aggregates Inc.
Harris Quarry
Operator: Northern Aggregates Inc
Controller: Frank Dutra
Location: PORTALBE, Mendocino County, CA
Employees: 9
Recent Violations
View all 135 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 12/18/2025 | 56.4201(a)(2) | Non-S&S | ModNegligence | $209 |
| 06/11/2025 | 56.15005 | S&S | ModNegligence | $1,037 |
| 06/11/2025 | 56.9300(a) | S&S | HighNegligence | $465 |
| 06/11/2025 | 56.11001 | Non-S&S | ModNegligence | $151 |
| 06/11/2025 | 56.14108 | Non-S&S | ModNegligence | $151 |
| 06/11/2025 | 56.14108 | Non-S&S | ModNegligence | $151 |
| 06/11/2025 | 56.14112(b) | Non-S&S | LowNegligence | $151 |
| 03/05/2025 | 56.9300(a) | Non-S&S | ModNegligence | $151 |
| 03/05/2025 | 56.14112(a)(1) | Non-S&S | ModNegligence | $151 |
| 03/05/2025 | 56.14107(a) | Non-S&S | ModNegligence | $151 |
| 03/05/2025 | 56.11012 | Non-S&S | ModNegligence | $151 |
| 05/07/2024 | 56.15001 | Non-S&S | LowNegligence | $147 |
| 07/27/2023 | 56.9300(a) | Non-S&S | ModNegligence | $143 |
| 06/07/2022 | 56.14101(a)(2) | S&S | ModNegligence | $378 |
| 06/07/2022 | 56.14206(b) | Non-S&S | ModNegligence | $133 |
| 06/07/2022 | 56.12004 | Non-S&S | ModNegligence | $133 |
| 06/07/2022 | 56.12028 | Non-S&S | ModNegligence | $133 |
| 03/09/2022 | 56.12018 | Non-S&S | ModNegligence | $133 |
| 03/09/2022 | 47.41(a) | Non-S&S | ModNegligence | $133 |
| 03/09/2022 | 46.7(a) | Non-S&S | ModNegligence | $148 |
Accidents & Injuries
View all 11 →| Date | Classification | Injury | Days Lost |
|---|---|---|---|
| 06/23/2016 | STRIKING OR BUMPING | DYS AWY FRM WRK & RESTRCTD ACT | 54d lost, 5d restricted |
| 09/14/2015 | HANDLING OF MATERIALS | DAYS AWAY FROM WORK ONLY | 200d lost |
| 04/30/2014 | SLIP OR FALL OF PERSON | DAYS AWAY FROM WORK ONLY | 2d lost |
| 08/23/2012 | HANDLING OF MATERIALS | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 07/25/2007 | HANDLING OF MATERIALS | DAYS AWAY FROM WORK ONLY | None |
| 05/11/2007 | HANDLING OF MATERIALS | DAYS AWAY FROM WORK ONLY | None |
| 03/22/2004 | HANDLING OF MATERIALS | DYS AWY FRM WRK & RESTRCTD ACT | 21d lost, 2d restricted |
| 02/10/2003 | MACHINERY | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 05/06/2002 | MACHINERY | DAYS AWAY FROM WORK ONLY | 6d lost |
| 07/31/2000 | POWERED HAULAGE | DAYS AWAY FROM WORK ONLY | 26d lost |
Inspections
View all 73 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 12/18/2025 | 12/18/2025 | 7.50 | 1 |
| 06/11/2025 | 06/16/2025 | 7.75 | 1 |
| 06/09/2025 | 06/10/2025 | 7.50 | 1 |
| 03/04/2025 | 03/05/2025 | 10.25 | 1 |
| 05/06/2024 | 05/08/2024 | 26.50 | 1 |
| 01/31/2024 | 01/31/2024 | 7.25 | 1 |
| 07/27/2023 | 07/28/2023 | 13.50 | 1 |
| 03/26/2023 | 03/28/2023 | 9.50 | 1 |
| 06/06/2022 | 06/08/2022 | 18.25 | 1 |
| 03/07/2022 | 03/10/2022 | 13.75 | 1 |
Mine Details
Related Mines
Frequently Asked Questions
How many MSHA violations does Harris Quarry have?
Harris Quarry has 135 MSHA violations on record, of which 43 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $24K.
What type of mine is Harris Quarry?
Harris Quarry is a Surface mine producing Stone, located in PORTALBE, Mendocino County, CA. It currently has 9 employees.
Has anyone been injured or killed at Harris Quarry?
According to MSHA records, Harris Quarry has 11 reported accident/injury records and 0 fatalities on file.
Who operates Harris Quarry?
Harris Quarry is operated by Northern Aggregates Inc and controlled by Frank Dutra. MSHA Mine ID: 0405139.