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Knife River Construction Vernalis Plant Metal/Non-Metal

Knife River Construction · Surface

Controlled by Knife River Corporation

TRACY, San Joaquin County, CA · Active

MSHA Mine ID: 0405459

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Email me when a new MSHA incident is filed at Knife River Construction Vernalis Plant.

Fatalities: 1
Total incidents: 5
Years on record: 2006–2023
Latest incident: Sep 2023

Compliance record

MSHA citations since 2000

citations

significant & substantial

$118,727

proposed penalties

$101,087

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	8,492	0	0	0.0
2025 Q3	9,974	0	0	0.0
2025 Q2	8,980	1	1	111.4
2025 Q1	1,022	0	0	0.0
2024 Q4	8,132	0	0	0.0
2024 Q3	9,349	1	0	107.0
2024 Q2	8,883	0	0	0.0
2023 Q4	7,808	0	0	0.0

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

Fatalities at this mine

1 recorded

January 8, 2015 CA · Metal/Non-Metal clerk, timekeeper, office worker, director of sales Fatality · MACHINERY

Knife River Construction · Caught in, under or between a moving and a stationary object

Knife River miners were replacing a screen. Our sales representative was on site. He was on site to provide technical assistance. He was struck in the head by the feeder box. EMS was notified and responded. A Knife River operator notified MSHA within 15 minutes. Injured person was taken to the hospital where he then passed away.

Reportable incidents

4 on file (excluding fatalities above)

2023 · 1 incident

September 1, 2023 CA · Metal/Non-Metal crane operator, mobile equipment operator (meo), dragline operator, dropball operator, rigger MACHINERY

Knife River Construction · Caught in, under or between a moving and a stationary object

Replacing a coarse material washer (CMW) located inside a tub the employee was pinned between the CMW and a material chute above the tub. the employee was pinned for approximately 30 seconds, briefly lost consciousness and suffered bruising to the ribs and chest.

2020 · 1 incident

November 19, 2020 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY

Knife River Construction · Struck by... (Not Elsewhere Classified)

Laceration to the non-dominant hand, Right ring finger approx 1/2 inch in length. 7 stitches. Employee was unbolting a screen deck with a leather glove and battery operated impact tool. As EE was removing the bolt, the bolt spun and it had a small metal bur on the end. Which spun and cut the glove and the employee's finger on the distal digit (tip) of finger.

2007 · 1 incident

February 15, 2007 CA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS

Knife River Construction · Caught in, under or between a moving and a stationary object

Two men were replacing bottom seal ring on cone crusher. The seal ring slipped off retaining lip while installing bolts mashing man's left hand 2nd finger between ring and main shaft.

2006 · 1 incident

June 28, 2006 CA · Metal/Non-Metal outside foreman, leadman DISORDERS (REPEATED TRAUMA)

Knife River Construction · (Not Elsewhere Classified)

Reportable hearing loss 1-16-06 had sinus infection after repeted doctor visits, M.R.I, Cat Scan, Full audio Tests, on 6-28-06 doctor was unable to rule out noise induced hearing loss, damage may have been as mutch as 10 year ago. hearing loss in both ears in exess of 10 db