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Rocky Canyon Plant Metal/Non-Metal

Calportland Construction · Surface

Controlled by Taiheiyo Cement Corp

Atascadero, San Luis Obispo County, CA · Active

MSHA Mine ID: 0404634

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Email me when a new MSHA incident is filed at Rocky Canyon Plant.

Fatalities: 0
Total incidents: 6
Years on record: 2006–2026
Latest incident: Jun 2026

Compliance record

MSHA citations since 2001

136

citations

significant & substantial

$41,238

proposed penalties

$41,238

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	5,219	0	0	0.0
2025 Q3	6,480	0	0	0.0
2025 Q2	7,094	0	0	0.0
2025 Q1	6,420	1	0	155.8
2024 Q4	7,757	0	0	0.0
2024 Q3	6,378	4	0	627.2
2024 Q2	7,297	0	0	0.0
2024 Q1	7,398	4	2	540.7

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

No fatalities recorded at this mine.

Reportable incidents

6 on file

2026 · 2 incidents

June 2, 2026 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS

Calportland Construction · Over-exertion in lifting objects

Employee was shoveling material from under the conveyor belt and felt slight pain in lower back (failed to report), operating haul truck and went home. It was not until 6-3-2026 (following day) when employee had a hard time getting out of bed for work when it was reported. Resulted in acute lumbar myofascial strain

January 16, 2026 CA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDTOOLS (NONPOWERED)

Calportland Construction · Struck by... (Not Elsewhere Classified)

Employee's right hand was in the line of fire of a block and chain. The block and chain was under tension and shifted which struck employee's index finger. This resulted in a broken finger.

2023 · 1 incident

February 8, 2023 CA · Metal/Non-Metal dry screening plant operator, screen house operator HANDLING OF MATERIALS

Calportland Construction · Over-exertion in lifting objects

Operator was changing screens on the shaker deck in the morning and felt their back becoming inflamed from their body positioning. Employee was working through the pain operating the haul truck the remainder of the day when they noticed that the pain had become much worse. Was seen at clinic with a lower right back strain and right lumbar radiculopathy.

2020 · 1 incident

February 21, 2020 CA · Metal/Non-Metal miner, prospector, nec MACHINERY

Calportland Construction · Struck by flying object

Employee was performing grinding and welding on shaker on the lower plant repairing holes. Thought had dust in eyes. Later that evening approx. 1030pm the right eye became inflamed and EE went to ER and they found a slab of metal imbedded.

2011 · 1 incident

November 14, 2011 CA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator MACHINERY

Calportland Construction · Caught in, under or between (Not Elsewhere Classified)

Employee was disassembling a 30 HP water pump for inspection when he took off his gloves to remove the bolts, he then turned the impeller without gloves and lacerated his right index finger. The finger required 9 stitches.

2006 · 1 incident

October 18, 2006 CA · Metal/Non-Metal welder (shop) HANDTOOLS (NONPOWERED)

Union Asphalt Inc · Struck by... (Not Elsewhere Classified)

While hammering a piece of steel part flipped up hitting employee's mouth cutting lip.