# Silver Creek

- **MSHA mine ID:** 0200758
- **Status:** Active
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** Mohave, AZ
- **Operator:** S&S Concrete & Materials, LLC
- **Controller:** The Michael & Ashia Stone Revocable Trust; The Robert & Denise Swartzman
- **Public source rows linked:** 673
- **Source coverage:** 15 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**The Michael & Ashia Stone Revocable Trust; The Robert & Denise Swartzman (0176022) → S&S Concrete & Materials, LLC (0053092) → Silver Creek (0200758)**

Current identity source: `msha-mines`. This is a current snapshot, not a historical claim.

## Controller and operator valid-time history

- **Taggart Construction Company → Wmk Transit Mix:** 1978-03-09 through 1980-02-29; derived from co-tenure at mine 0200758; source `msha-controller-operator-history`.
- **Consolidated Gold Fields Limited → Arc Materials Corp D/B/A Wmk Transit Mix:** 1980-03-01 through 1989-08-09; derived from co-tenure at mine 0200758; source `msha-controller-operator-history`.
- **Hanson PLC → Wmk Transit Mix:** 1989-08-10 through 1990-02-01; derived from co-tenure at mine 0200758; source `msha-controller-operator-history`.
- **CSR Ltd → Wmk Materials:** 1990-02-02 through 1998-12-31; derived from co-tenure at mine 0200758; source `msha-controller-operator-history`.
- **Peter Kiewit Sons' Inc → United Metro Materials Inc:** 1999-01-01 through 2002-09-25; derived from co-tenure at mine 0200758; source `msha-controller-operator-history`.
- **CSR Ltd → Rinker Materials Western Inc.:** 2002-09-26 through 2003-03-31; derived from co-tenure at mine 0200758; source `msha-controller-operator-history`.
- **Rinker Group Ltd → Rinker Materials Western Inc.:** 2003-04-01 through 2004-07-31; derived from co-tenure at mine 0200758; source `msha-controller-operator-history`.
- **Rinker Group Ltd → Cemex:** 2004-08-01 through 2007-07-09; derived from co-tenure at mine 0200758; source `msha-controller-operator-history`.
- **Cemex S A → Rinker Materials Western Inc.:** 2007-07-10 through 2004-07-31; derived from co-tenure at mine 0200758; source `msha-controller-operator-history`.
- **Cemex S A → Cemex:** 2007-07-10 through 2008-12-17; derived from co-tenure at mine 0200758; source `msha-controller-operator-history`.
- **Cemex S A → Cemex Construction Materials South LLC:** 2008-12-18 through 2025-03-20; derived from co-tenure at mine 0200758; source `msha-controller-operator-history`.
- **Michael  Stone et al → S&S Concrete & Materials, LLC:** 2025-03-21 through 2022-07-13; derived from co-tenure at mine 0200758; source `msha-controller-operator-history`.
- **Robert  Swartzman et al → S&S Concrete & Materials, LLC:** 2025-03-21 through 2022-07-13; derived from co-tenure at mine 0200758; source `msha-controller-operator-history`.
- **The Robert & Denise Swartzman Family Trust et al → S&S Concrete & Materials, LLC:** 2025-03-21 through current/open; derived from co-tenure at mine 0200758; source `msha-controller-operator-history`.
- **The Michael & Ashia Stone Revocable Trust et al → S&S Concrete & Materials, LLC:** 2025-03-21 through current/open; derived from co-tenure at mine 0200758; source `msha-controller-operator-history`.

- History rows: 15
- Typed edges: 36
- Interval anomalies: 3
- Valid-time bounds: inclusive; date granularity; null end means open-ended in the upstream history row; not independent proof of present control.
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00.

## Assessment signals

1. **SAFETY — 0 since 2021:** Accidents and injuries 1 historical accident/injury rows; 0 coded fatalities and 0 lost days across the published record.
2. **COMPLIANCE — 27 since 2021:** Violations and penalties 124 violation rows across the full record; 17 carry an S&S flag and $26,224 appears in current assessed amounts.
3. **HEALTH — 18 samples:** Occupational health samples 18 personal. 1 personal-sample rows have a published C/E ratio above 1; 0 noise rows have an action-level or PEL dose above 100%. These are separate measures, not a silica exceedance count. Silica results and sample status are shown separately.
4. **PRODUCTION — 0 tons:** Quarterly production and employment 1K employee hours and 3 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 9 linked rows:** Contests, conferences and decisions 2 contested-violation rows, 2 civil-penalty docket/decision rows, and 5 conference records linked by issuance number.
6. **CONTRACTORS — 1 linked entities:** Contractors Contractors are linked through this mine’s violation or accident records. Their production and hours cover all their operations, so they are not included in this mine’s totals.
7. **INSPECTIONS — 9 since 2021:** Inspections 58 inspection events and 783 published inspection hours across the historical record.

## EIA annual operating context

No matched record in the 2024 EIA coal-public workbook. This may be inapplicable for a non-coal operation.

## Recent Title 30 crosswalk

Snapshot current through 2026-08-19.

- **30 CFR 56.14107 — Moving machine parts.** (5 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14107
- **30 CFR 47.41 — Requirement for container labels.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-47/subpart-E/section-47.41
- **30 CFR 56.20011 — Barricades and warning signs.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20011
- **30 CFR 56.20003 — Housekeeping.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20003
- **30 CFR 46.8 — Annual refresher training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.8
- **30 CFR 56.14205 — Machinery, equipment, and tools.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14205
- **30 CFR 56.14112 — Construction and maintenance of guards.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14112

## Source coverage

- **Accident, Injuries, and Illnesses:** 1 rows; 2015-09-22 through 2015-09-22; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2026-05-27 through 2026-05-27; source ID `msha-addresses`
- **Assessed Violations:** 124 rows; 2000-01-26 through 2025-12-02; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 2 rows; 2008-01-17 through 2008-01-17; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 5 rows; 2003-04-24 through 2011-07-12; source ID `msha-conferences`
- **Contested Violations:** 2 rows; 2007-01-17 through 2007-01-17; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 59 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 12 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 15 rows; 1978-03-09 through 2025-03-21; source ID `msha-controller-operator-history`
- **Inspections:** 58 rows; 2000-01-26 through 2025-12-02; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 202 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 49 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Metal and Nonmetal Personal Health Samples:** 18 rows; 2003-04-02 through 2025-12-03; source ID `msha-personal-health-samples`
- **Violations:** 124 rows; 2000-01-26 through 2025-12-02; source ID `msha-violations`

## Caveats

- This is public-record decision support, not legal advice or an official MSHA record.
- Missing data can indicate no event, publication delay, an unresolved identity, or inapplicability.
- Contractor production data is entity-level and is not attributed to this mine.

## Alternate representations

- HTML: `/mines/silver-creek-0200758`
- JSON: `/api/v1/mines/silver-creek-0200758`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/0200758/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/0200758/relationships`
- MCP resource: `mine://0200758/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`