Northwest Aggregates · (Not Elsewhere Classified)
STOCKPILING AGGREGATE
Koehler Quarry Metal/Non-Metal
Baker Rock Resources
· Surface
Controlled by
Gary T Baker
Beaverton,
Washington County,
OR
·
Abandoned
MSHA Mine ID: 3500014
Watch this mine
Email me when a new MSHA incident is filed at Koehler Quarry.
- Fatalities
- 0
- Total incidents
- 1
- Years on record
- 2000
- Latest incident
- Jun 2000
Compliance record
MSHA citations since 2000
40
citations
5
significant & substantial
$3,030
proposed penalties
$3,010
paid to date
Source: MSHA violations data, updated weekly.
Quarterly safety rates
Citations per million employee-hours, as reported to MSHA
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2010 Q1 | 3,697 | 2 | 0 | 541.0 |
| 2009 Q4 | 6,499 | 0 | 0 | 0.0 |
| 2009 Q3 | 7,723 | 0 | 0 | 0.0 |
| 2009 Q2 | 8,631 | 0 | 0 | 0.0 |
| 2009 Q1 | 8,828 | 0 | 0 | 0.0 |
| 2008 Q4 | 7,824 | 2 | 0 | 255.6 |
| 2008 Q3 | 12,661 | 0 | 0 | 0.0 |
| 2008 Q2 | 13,700 | 3 | 1 | 219.0 |
Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.
No fatalities recorded at this mine.