# DURHAM SALES YARD

- **MSHA mine ID:** 3100076
- **Status:** Abandoned
- **Type / commodity:** Surface / Crushed, Broken Traprock
- **Location:** Durham, NC
- **Operator:** Hanson Aggregates Southeast, LLC
- **Controller:** Heidelberg Materials AG
- **Public source rows linked:** 186
- **Source coverage:** 10 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Heidelberg Materials AG (M00004) → Hanson Aggregates Southeast, LLC (L16897) → DURHAM SALES YARD (3100076)**

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

## Controller and operator valid-time history

- **Nello L  Teer Jr et al → Nello L Teer Company:** 1950-01-01 through 1980-04-14; derived from co-tenure at mine 3100076; source `msha-controller-operator-history`.
- **Koppers Company Inc → Nello L Teer Company:** 1980-04-15 through 1988-11-13; derived from co-tenure at mine 3100076; source `msha-controller-operator-history`.
- **Hanson PLC → Hanson Aggregates Carolina Inc:** 1988-11-14 through 2003-02-02; derived from co-tenure at mine 3100076; source `msha-controller-operator-history`.
- **Hanson PLC → Hanson Aggregates Southeast, LLC:** 2003-02-03 through 2007-08-22; derived from co-tenure at mine 3100076; source `msha-controller-operator-history`.
- **Heidelberg Materials AG → Hanson Aggregates Southeast, LLC:** 2007-08-23 through current/open; derived from co-tenure at mine 3100076; source `msha-controller-operator-history`.

- History rows: 5
- Typed edges: 14
- 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 1 historical accident/injury rows; 0 coded fatalities and 86 lost days across the published record.
2. **COMPLIANCE — 0 since 2021:** Violations and penalties 10 violation rows across the full record; 2 carry an S&S flag and $902 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 1K employee hours and 2 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 0 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 0 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 24 inspection events and 223 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 56.20003 — Housekeeping.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20003
- **30 CFR 56.4201 — Inspection.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4201
- **30 CFR 56.12032 — Inspection and cover plates.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12032
- **30 CFR 50.30 — Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-D/section-50.30
- **30 CFR 56.12023 — Guarding electrical connections and resistor grids.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12023
- **30 CFR 56.14101 — Brakes.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14101
- **30 CFR 56.15004 — Eye protection.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-N/section-56.15004
- **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 56.12030 — 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 56.12025 — Grounding circuit enclosures.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12025

## Source coverage

- **Accident, Injuries, and Illnesses:** 1 rows; 2002-03-21 through 2002-03-21; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2010-01-22 through 2010-01-22; source ID `msha-addresses`
- **Assessed Violations:** 10 rows; 2000-11-30 through 2008-04-08; source ID `msha-assessed-violations`
- **Controller and Operator History:** 5 rows; 1950-01-01 through 2003-02-03; source ID `msha-controller-operator-history`
- **Inspections:** 24 rows; 2000-05-01 through 2009-04-16; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 108 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 22 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; 2001-05-31 through 2005-05-18; source ID `msha-personal-health-samples`
- **Violations:** 10 rows; 2000-11-30 through 2008-04-08; 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/durham-sales-yard-3100076`
- JSON: `/api/v1/mines/durham-sales-yard-3100076`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/3100076/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/3100076/relationships`
- MCP resource: `mine://3100076/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`