# MSHA citation `5007335`
> **Significant & Substantial** · Citation · 03/31/2026 · U.S. Silica Energy Company
## Rule
- **Section of Act:** —
- **Part / Section:** 46.11(b)(4)
- **Type:** Order
## Severity
- **S&S flag:** Y
- **Likelihood:** Reasonably
- **Injury/Illness:** Fatal
- **# affected:** 6
- **Negligence:** ModNegligence
## Money
- **Proposed penalty:** $0
- **Amount paid:** $0
- **Amount due:** $0
- **Contested:** N
## Parties
- **Mine:** [4105363](https://api.ai-analytics.org/mine/4105363) — Lamesa Plant
- **Violator:** U.S. Silica Energy Company (Operator)
- **Controller:** USS Holdings Inc
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*Source: [MSHA Open Government Data](https://arlweb.msha.gov/OpenGovernmentData/) · AI Analytics · CC0 1.0*