Key Takeaway

Metso Screening Plant is a temporarily idled surface mine producing SandAndGravel, located in Buffalo, Johnson County, WY. It has 35 violations on record (7 S&S) and $7K in proposed penalties. Operated by Prism Logistics, LLC.

Metso Screening Plant

Temporarily Idled Surface SandAndGravel

Operator: Prism Logistics, LLC

Controller: John Melgaard; Kyle True

Location: Buffalo, Johnson County, WY

Employees: 2

35
Violations
7
S&S Violations
0
Accidents
$7K
Penalties

Recent Violations

View all 35 →
Date Section S&S Negligence Penalty
07/25/2025 50.30(a) Non-S&S LowNegligence $151
10/09/2024 50.30(a) Non-S&S ModNegligence $147
10/08/2024 46.6(b) Non-S&S HighNegligence $147
10/08/2024 46.6 S&S HighNegligence $595
10/24/2023 56.14207 Non-S&S ModNegligence $143
10/24/2023 56.4201(a)(1) Non-S&S ModNegligence $143
07/15/2021 41.12 Non-S&S ModNegligence $125
07/15/2021 56.1000 Non-S&S ModNegligence $125
10/23/2019 56.9300(b) Non-S&S ModNegligence $121
07/15/2018 50.30(a) Non-S&S HighNegligence $118
11/29/2017 56.1000 Non-S&S HighNegligence $116
05/02/2017 56.14205 S&S ModNegligence $116
05/02/2017 56.4201(a)(2) Non-S&S ModNegligence $116
05/02/2017 56.1000 Non-S&S HighNegligence $116
03/23/2016 56.9300(b) Non-S&S ModNegligence $100
11/18/2014 56.1000 Non-S&S HighNegligence $100
01/28/2014 56.14207 Non-S&S ModNegligence $162
01/28/2014 56.12025 S&S ModNegligence $1,795
01/28/2014 41.12 Non-S&S ModNegligence $100
01/28/2014 46.9(b)(5) Non-S&S ModNegligence $100

Inspections

View all 25 →
Begin End Hours Inspectors
10/14/2025 10/15/2025 7.00 1
07/25/2025 07/25/2025 14.50 1
07/07/2025 07/07/2025 4.25 1
04/16/2025 04/16/2025 4.00 1
10/08/2024 10/10/2024 20.00 1
06/03/2024 06/25/2024 16.00 1
10/24/2023 10/26/2023 12.75 1
09/18/2023 09/25/2023 6.00 1
02/22/2022 02/25/2022 26.50 1
07/14/2021 07/16/2021 16.50 1

Mine Details

MSHA Mine ID3200587
Mine TypeSurface
StatusTemporarily Idled
CommoditySandAndGravel
SIC DescriptionConstruction Sand and Gravel
Employees2
Days/Week0.0
Coordinates42.7975000, -105.5291670
Nearest TownBuffalo

Frequently Asked Questions

How many MSHA violations does Metso Screening Plant have?

Metso Screening Plant has 35 MSHA violations on record, of which 7 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $7K.

What type of mine is Metso Screening Plant?

Metso Screening Plant is a Surface mine producing SandAndGravel, located in Buffalo, Johnson County, WY. It currently has 2 employees.

Has anyone been injured or killed at Metso Screening Plant?

According to MSHA records, Metso Screening Plant has 0 reported accident/injury records and 0 fatalities on file.

Who operates Metso Screening Plant?

Metso Screening Plant is operated by Prism Logistics, LLC and controlled by John Melgaard; Kyle True. MSHA Mine ID: 3200587.