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LYONS QUARRY Metal/Non-Metal

Aggregate Industries WCR Inc · Surface

Controlled by Amrize Ltd

Lyons, Boulder County, CO · Abandoned

MSHA Mine ID: 0501437

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Fatalities: 0
Total incidents: 2
Years on record: 2002–2004
Latest incident: Jun 2004

Compliance record

MSHA citations since 2000

citations

significant & substantial

$5,054

proposed penalties

$5,054

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
2007 Q2	4,719	0	0	0.0
2007 Q1	4,151	3	0	722.7
2006 Q4	434	0	0	0.0
2006 Q2	5,393	0	0	0.0
2006 Q1	4,184	0	0	0.0
2005 Q4	5,249	0	0	0.0
2005 Q3	7,663	0	0	0.0
2005 Q2	7,021	8	5	1139.4

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

2004 · 1 incident

June 15, 2004 CO · Metal/Non-Metal outside foreman, leadman SLIP OR FALL OF PERSON

Aggregate Industries WCR Inc · Fall onto or against objects

WHILE CLIMBING LADDER (POWER SCREEN) EE STRUCK HEAD ON LOW CLEARANCE. THIS CAUSED HIM TO LOSE BALANCE AND FALL TO THE GROUND WHERE HE STRUCK HIS HEAD ON A PIECE OF STEEL. HE RECEIVED 2 LACERATIONS ON HIS HEAD WHICH REQUIRED MEDICAL TREATMENT.

2002 · 1 incident

October 30, 2002 CO · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS

Aggregate Industries Northeast Region · Over-exertion (Not Elsewhere Classified)

EMPLOYEE KNELT DOWN TO TIGHTEN CONE MOTOR BOLTS. WHEN HE FINISHED, HE STARTED TO STAND AND FELT HIS KNEE POP.