# Maintenance and Supply

- **MSHA mine ID:** 4000605
- **Status:** Abandoned
- **Type / commodity:** Facility / Zinc
- **Location:** Jefferson, TN
- **Operator:** Nyrstar Tennessee Mines, Strawberry Plains LLC
- **Controller:** Nyrstar Netherlands Holdings B.V.
- **Public source rows linked:** 387
- **Source coverage:** 12 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Nyrstar Netherlands Holdings B.V. (0188563) → Nyrstar Tennessee Mines, Strawberry Plains LLC (0073683) → Maintenance and Supply (4000605)**

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

## Controller and operator valid-time history

- **Asarco Inc → Asarco Inc:** 1950-01-01 through 1999-11-16; derived from co-tenure at mine 4000605; source `msha-controller-operator-history`.
- **Grupo Mexico S A B de C V → Asarco Inc:** 1999-11-17 through 2006-06-08; derived from co-tenure at mine 4000605; source `msha-controller-operator-history`.
- **Tennessee Zinc Company LLC → Nyrstar Tennessee Mines, Strawberry Plains LLC:** 2006-06-09 through 2009-12-06; derived from co-tenure at mine 4000605; source `msha-controller-operator-history`.
- **Nyrstar NV → Nyrstar Tennessee Mines, Strawberry Plains LLC:** 2009-12-07 through 2022-09-30; derived from co-tenure at mine 4000605; source `msha-controller-operator-history`.
- **Nyrstar US Inc → Nyrstar Tennessee Mines, Strawberry Plains LLC:** 2022-10-01 through 2024-10-23; derived from co-tenure at mine 4000605; source `msha-controller-operator-history`.
- **Nyrstar Netherlands Holdings B.V. → Nyrstar Tennessee Mines, Strawberry Plains LLC:** 2024-10-24 through current/open; derived from co-tenure at mine 4000605; source `msha-controller-operator-history`.

- History rows: 6
- Typed edges: 15
- 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: 2026-10-13T11:19:05.459773+00:00.

## Assessment signals

1. **SAFETY — 0 since 2021:** Accidents and injuries 15 historical accident/injury rows; 0 coded fatalities and 185 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 49 violation rows across the full record; 8 carry an S&S flag and $26,435 appears in current assessed amounts.
3. **HEALTH — 33 samples:** Occupational health samples 33 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 20K employee hours and 35 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 22 linked rows:** Contests, conferences and decisions 11 contested-violation rows, 11 civil-penalty docket/decision rows, and 0 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 43 inspection events and 489 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 57.14100 — Safety defects; examination, correction and records.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-M/section-57.14100
- **30 CFR 57.16007 — Taglines, hitches, and slings.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-O/section-57.16007
- **30 CFR 57.20003 — Housekeeping.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-S/section-57.20003
- **30 CFR 57.11001 — Safe access.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-J/section-57.11001
- **30 CFR 57.12019 — Access to stationary electrical equipment or switchgear.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-K/section-57.12019
- **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 56.14207 — Parking procedures for unattended equipment.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14207
- **30 CFR 56.12006 — Distribution boxes.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12006
- **30 CFR 57.16006 — Protection of gas cylinder valves.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-57/subpart-O/section-57.16006
- **30 CFR 41.30 — Address of record and telephone number.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-G/part-41/subpart-C/section-41.30
- **30 CFR 50.20 — Preparation and submission of MSHA Report Form 7000-1—Mine Accident, Injury, and Illness Report.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-C/section-50.20
- **30 CFR 50.11 — Investigation.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-B/section-50.11

## Source coverage

- **Accident, Injuries, and Illnesses:** 15 rows; 2000-02-26 through 2016-02-03; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2017-03-31 through 2017-03-31; source ID `msha-addresses`
- **Assessed Violations:** 46 rows; 2000-12-28 through 2013-11-26; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 11 rows; 2009-09-30 through 2013-09-17; source ID `msha-civil-penalty-dockets-decisions`
- **Contested Violations:** 11 rows; 2008-01-25 through 2013-05-29; source ID `msha-contested-violations`
- **Controller and Operator History:** 6 rows; 1950-01-01 through 2006-06-09; source ID `msha-controller-operator-history`
- **Inspections:** 43 rows; 2000-03-28 through 2017-01-12; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 137 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 34 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:** 33 rows; 2001-10-31 through 2016-04-13; source ID `msha-personal-health-samples`
- **Violations:** 49 rows; 2000-12-28 through 2013-11-26; 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/maintenance-and-supply-4000605`
- JSON: `/api/v1/mines/maintenance-and-supply-4000605`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4000605/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4000605/relationships`
- MCP resource: `mine://4000605/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`