Sioux Falls Quarry
MSHA mine ID 3900008 · Minnehaha County, SD
- Operator
- Knife River - South Dakota
- Controller
- Knife River Corporation
- Mine status
- Active since Feb 22, 1990
- Mine type
- Surface
- Primary commodity
- Crushed, Broken Quartzite
- Citations issued
- Nov 26, 2024 to Oct 12, 2026
Past 24 months at a glance
- Inspections
- 5
- Citations and orders
- 24
- Marked S&S by MSHA
- 5
- Assessed penalties
- $3,503
21 of 24 citations have an MSHA assessment so far, first proposed at $3,503. 0 are marked contested.
Citations by standard
The 30 CFR section MSHA cited, most cited first.
| Standard | Citations | Assessed |
|---|---|---|
| 56.12004 | 4 | $604 |
| 56.12018 | 3 | $479 |
| 56.5001(a)/56.5005 | 3 | $0 |
| 56.12028 | 2 | $328 |
| 56.14207 | 2 | $328 |
| 56.11012 | 1 | $151 |
| 56.11017 | 1 | $151 |
| 56.12019 | 1 | $151 |
| 56.14101(a)(2) | 1 | $151 |
| 56.14103(b) | 1 | $151 |
| 56.14132(a) | 1 | $177 |
| 56.20003(a) | 1 | $267 |
| 56.4011 | 1 | $151 |
| 56.4201(b) | 1 | $147 |
| 56.9301 | 1 | $267 |
Latest citations
| Issued | Assessed |
|---|---|
| Oct 12, 2026 No. 5112292 56.5001(a)/56.5005 | Not yet assessed |
| Oct 12, 2026 No. 5112291 56.5001(a)/56.5005 | Not yet assessed |
| Oct 12, 2026 No. 5112290 56.5001(a)/56.5005 | Not yet assessed |
| Jun 23, 2026 No. 5112218 56.4011 | $151 Received |
| Jun 23, 2026 No. 5112217 56.12018 | $151 Received |
| Jun 23, 2026 No. 5112216 56.12004 | $151 Received |
| Jun 23, 2026 No. 5112215 56.11012 | $151 Received |
| Jun 16, 2026 No. 5112214 56.14101(a)(2) | $151 Received |
| Jun 16, 2026 No. 5112213 56.12028 | $151 Received |
| Jun 16, 2026 No. 5112212 56.12018 | $177 Received |
| Jun 16, 2026 No. 5112211 56.12004 | $151 Received |
| Jun 16, 2026 No. 5112210 56.12019 | $151 Received |
| Jun 16, 2026 No. 5112209 56.14103(b) | $151 Received |
| Jun 16, 2026 No. 5112208 56.11017 | $151 Received |
| Jun 16, 2026 No. 5112207 56.20003(a) | $267 Received |
| Jan 6, 2026 No. 5113504 56.12004 | $151 Closed |
| Apr 16, 2025 No. 9699758 56.12028 | $177 Closed |
| Apr 16, 2025 No. 9699756 56.12018 | $151 Closed |
| Apr 15, 2025 No. 9699755 56.14207 | $151 Closed |
| Apr 15, 2025 No. 9699754 56.9301 | $267 Closed |
| Apr 15, 2025 No. 9699753 56.14207 | $177 Closed |
| Apr 15, 2025 No. 9699752 56.12004 | $151 Closed |
| Apr 15, 2025 No. 9699751 56.14132(a) | $177 Closed |
| Nov 26, 2024 No. 9699852 56.4201(b) | $147 Closed |
Latest inspections
Spot Inspection
Event F046911
Sep 21, 2026 to Sep 22, 2026
Regular Safety and Health Inspection
Event F0376B4
Jun 15, 2026 to Jun 24, 2026
Regular Safety and Health Inspection
Event F0231E5
Jan 5, 2026 to Jan 7, 2026
Regular Safety and Health Inspection
Event F0174F3
Apr 15, 2025 to Apr 24, 2025
Regular Safety and Health Inspection
Event F0116A3
Nov 25, 2024 to Nov 27, 2024
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About this record
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