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WP 3 Metal/Non-Metal

Oldcastle SW Group, Inc. · Surface

Controlled by CRH PLC

Golden, CO, Jefferson County, CO · Intermittent

MSHA Mine ID: 0504549

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Fatalities: 0
Total incidents: 2
Years on record: 2007–2008
Latest incident: Nov 2008

Compliance record

MSHA citations since 2000

citations

significant & substantial

$6,971

proposed penalties

$6,760

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
2025 Q4	433	0	0	0.0
2025 Q2	0	0	0
2025 Q1	0	0	0
2024 Q4	770	0	0	0.0
2024 Q1	379	0	0	0.0
2023 Q4	654	0	0	0.0
2023 Q3	0	1	1
2023 Q2	663	2	1	3016.6

Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.

No fatalities recorded at this mine.

Reportable incidents

2 on file

2008 · 1 incident

November 19, 2008 CO · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer SLIP OR FALL OF PERSON

Oldcastle SW Group, Inc. · Fall to the walkway or working surface

EE slipped on icy ground while draining washing/screening plant at end of shift. Lighting was marginal, but EE was aware of slippery conditions and did not spread available sand to aid traction. EE continued to work and saw physician on 11/25/08. At this time work restrictions were imposed. No lost time to date, diagnosis is pending MRI. Restricted work ongoing.

2007 · 1 incident

May 14, 2007 CO · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS

Oldcastle SW Group, Inc. · Struck against stationary object

The employee was assisting a co-worker replace a drive belt guard on the screen plant. As they were maneuvering the guard into place, the employee's hand slipped and struck the frame brace that is situated near the guard. His thumb required 7 stitches to close the wound. He was fitted with a metal protective guard on his thumb.