# Sonora Environmental LLC dba B & R Mats

- **MSHA mine ID:** 0200704
- **Status:** Abandoned
- **Type / commodity:** Surface / Construction Sand and Gravel
- **Location:** Pima, AZ
- **Operator:** B & R Materials
- **Controller:** Lee  Jolley; Larry  Miller
- **Public source rows linked:** 358
- **Source coverage:** 12 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**Lee  Jolley; Larry  Miller (0048809) → B & R Materials (0058657) → Sonora Environmental LLC dba B & R Mats (0200704)**

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

## Controller and operator valid-time history

- **Tanner Companies → Tanner Companies:** 1950-01-01 through 1983-08-17; derived from co-tenure at mine 0200704; source `msha-controller-operator-history`.
- **Roland C  Browne → B & R Materials Corp:** 1983-08-18 through 2004-06-20; derived from co-tenure at mine 0200704; source `msha-controller-operator-history`.
- **Lee  Jolley  et al → B & R Materials:** 2004-06-21 through current/open; derived from co-tenure at mine 0200704; source `msha-controller-operator-history`.
- **Larry  Miller  et al → B & R Materials:** 2004-06-21 through current/open; derived from co-tenure at mine 0200704; source `msha-controller-operator-history`.

- History rows: 4
- Typed edges: 10
- Interval anomalies: 0
- 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: 2026-10-17T05:35:58.500035+00:00.

## Assessment signals

1. **SAFETY — 0 since 2021:** Accidents and injuries 11 historical accident/injury rows; 1 coded fatalities and 203 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 130 violation rows across the full record; 42 carry an S&S flag and $77,268 appears in current assessed amounts.
3. **HEALTH — 4 samples:** Occupational health samples 4 personal. 0 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 13K employee hours and 25 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 10 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 7 civil-penalty docket/decision rows, and 3 conference records linked by issuance number.
6. **CONTRACTORS — 0 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 — 0 since 2021:** Inspections 27 inspection events and 616 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 46.9 — Records of training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.9
- **30 CFR 56.4430 — Storage facilities.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4430
- **30 CFR 56.12030 — Correction of dangerous conditions.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12030
- **30 CFR 46.11 — Site-specific hazard awareness training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.11
- **30 CFR 56.14100 — Safety defects; examination, correction and records.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14100
- **30 CFR 56.12008 — Insulation and fittings for power wires and cables.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12008
- **30 CFR 56.12004 — Electrical conductors.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12004
- **30 CFR 56.14107 — Moving machine parts.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14107
- **30 CFR 56.4130 — Electric substations and liquid storage facilities.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4130
- **30 CFR 56.11012 — Protection for openings around travelways.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11012

## Source coverage

- **Accident, Injuries, and Illnesses:** 11 rows; 2001-03-05 through 2007-10-16; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2008-10-22 through 2008-10-22; source ID `msha-addresses`
- **Assessed Violations:** 128 rows; 2000-03-15 through 2007-11-13; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 7 rows; 2002-04-08 through 2003-07-23; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 3 rows; 2001-11-29 through 2001-11-29; source ID `msha-conferences`
- **Controller and Operator History:** 4 rows; 1950-01-01 through 2004-06-21; source ID `msha-controller-operator-history`
- **Inspections:** 27 rows; 2000-03-15 through 2008-03-19; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 24 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 18 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:** 4 rows; 2006-10-12 through 2007-11-07; source ID `msha-personal-health-samples`
- **Violations:** 130 rows; 2000-03-15 through 2007-11-13; 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/sonora-environmental-llc-dba-b-r-mats-0200704`
- JSON: `/api/v1/mines/sonora-environmental-llc-dba-b-r-mats-0200704`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/0200704/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/0200704/relationships`
- MCP resource: `mine://0200704/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`