Conklin Quarry and Mill
Active
Surface
Stone
Operator: River Products Company Inc
Controller: Thomas R Scott
Location: Iowa City, Johnson County, IA
Employees: 17
250
Violations
47
S&S Violations
38
Accidents
$127K
Penalties
Recent Violations
View all 250 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 01/07/2026 | 56.12028 | Non-S&S | LowNegligence | $151 |
| 01/07/2026 | 56.12032 | Non-S&S | LowNegligence | $151 |
| 01/07/2026 | 56.13011 | Non-S&S | LowNegligence | $151 |
| 01/07/2026 | 56.14112(a)(1) | Non-S&S | ModNegligence | $151 |
| 04/09/2025 | 56.4200(b)(2) | Non-S&S | ModNegligence | $151 |
| 04/09/2025 | 56.14103(c)(1) | Non-S&S | LowNegligence | $151 |
| 10/16/2024 | 56.14100(b) | Non-S&S | HighNegligence | $147 |
| 10/16/2024 | 56.12004 | Non-S&S | LowNegligence | $147 |
| 10/16/2024 | 56.14100(b) | Non-S&S | ModNegligence | $147 |
| 08/07/2024 | 56.4601 | Non-S&S | ModNegligence | $204 |
| 02/28/2024 | 56.14132(a) | Non-S&S | ModNegligence | $147 |
| 02/27/2024 | 56.14100(c) | Non-S&S | ModNegligence | $147 |
| 02/27/2024 | 56.4603(b) | Non-S&S | ModNegligence | $147 |
| 02/27/2024 | 56.12032 | Non-S&S | ModNegligence | $147 |
| 03/28/2023 | 56.14107(a) | Non-S&S | ModNegligence | $143 |
| 03/28/2023 | 56.14109(a) | Non-S&S | ModNegligence | $143 |
| 03/28/2023 | 46.9(c)(3) | Non-S&S | ModNegligence | $143 |
| 03/27/2023 | 56.9300(a) | Non-S&S | ModNegligence | $143 |
| 03/27/2023 | 56.14101(a)(2) | Non-S&S | ModNegligence | $143 |
| 03/27/2023 | 56.14130(g) | S&S | ModNegligence | $558 |
Accidents & Injuries
View all 38 →| Date | Classification | Injury | Days Lost |
|---|---|---|---|
| 03/14/2024 | SLIP OR FALL OF PERSON | DAYS RESTRICTED ACTIVITY ONLY | 23d restricted |
| 12/01/2023 | MACHINERY | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 10/09/2023 | POWERED HAULAGE | DAYS RESTRICTED ACTIVITY ONLY | 73d restricted |
| 04/26/2023 | HANDLING OF MATERIALS | DAYS RESTRICTED ACTIVITY ONLY | 209d restricted |
| 07/07/2022 | HANDLING OF MATERIALS | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 05/27/2020 | HANDLING OF MATERIALS | DAYS AWAY FROM WORK ONLY | 2d lost |
| 04/29/2019 | HANDTOOLS (NONPOWERED) | DAYS AWAY FROM WORK ONLY | 15d lost |
| 10/26/2016 | HANDLING OF MATERIALS | DAYS AWAY FROM WORK ONLY | 24d lost |
| 06/27/2016 | HANDTOOLS (NONPOWERED) | PERM TOT OR PERM PRTL DISABLTY | 9d lost, 118d restricted |
| 05/03/2016 | NONPOWERED HAULAGE | DAYS RESTRICTED ACTIVITY ONLY | 33d restricted |
Inspections
View all 80 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 01/06/2026 | 01/08/2026 | 29.50 | 1 |
| 04/09/2025 | 04/10/2025 | 17.00 | 1 |
| 10/15/2024 | 10/17/2024 | 27.75 | 1 |
| 08/06/2024 | 08/07/2024 | 14.00 | 1 |
| 03/04/2024 | 03/04/2024 | 5.00 | 1 |
| 02/27/2024 | 02/28/2024 | 15.75 | 1 |
| 09/05/2023 | 09/06/2023 | 16.50 | 1 |
| 03/27/2023 | 03/29/2023 | 27.75 | 1 |
| 01/25/2023 | 01/26/2023 | 8.00 | 1 |
| 09/06/2022 | 09/12/2022 | 23.25 | 1 |
Mine Details
MSHA Mine ID1300193
Mine TypeSurface
StatusActive
CommodityStone
SIC DescriptionCrushed, Broken Limestone NEC
Employees17
Days/Week5.0
Hours/Shift10.0
Coordinates41.6936110, -91.5472220
Nearest TownIowa City
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Frequently Asked Questions
How many MSHA violations does Conklin Quarry and Mill have?
Conklin Quarry and Mill has 250 MSHA violations on record, of which 47 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $127K.
What type of mine is Conklin Quarry and Mill?
Conklin Quarry and Mill is a Surface mine producing Stone, located in Iowa City, Johnson County, IA. It currently has 17 employees.
Has anyone been injured or killed at Conklin Quarry and Mill?
According to MSHA records, Conklin Quarry and Mill has 38 reported accident/injury records and 0 fatalities on file.
Who operates Conklin Quarry and Mill?
Conklin Quarry and Mill is operated by River Products Company Inc and controlled by Thomas R Scott. MSHA Mine ID: 1300193.