# Ottawa Plant

- **MSHA mine ID:** 3300145
- **Status:** Temporarily Idled
- **Type / commodity:** Surface / Crushed, Broken Limestone NEC
- **Location:** Putnam, OH
- **Operator:** The National Lime and Stone Company
- **Controller:** National Lime & Stone Co.
- **Public source rows linked:** 1,425
- **Source coverage:** 13 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**National Lime & Stone Co. (M00255) → The National Lime and Stone Company (L00317) → Ottawa Plant (3300145)**

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

## Controller and operator valid-time history

- **Tony  Shroyer et al → Putnam Stone Company Inc:** 1950-01-01 through 2011-12-15; derived from co-tenure at mine 3300145; source `msha-controller-operator-history`.
- **Stephen  Benson → Putnam Aggregates Company, LLC:** 2011-12-16 through 2018-04-24; derived from co-tenure at mine 3300145; source `msha-controller-operator-history`.
- **National Lime & Stone Co. → The National Lime and Stone Company:** 2018-04-25 through current/open; derived from co-tenure at mine 3300145; source `msha-controller-operator-history`.

- History rows: 3
- Typed edges: 9
- 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 — 1 since 2021:** Accidents and injuries 8 historical accident/injury rows; 0 coded fatalities and 271 lost days across the published record.
2. **COMPLIANCE — 15 since 2021:** Violations and penalties 112 violation rows across the full record; 30 carry an S&S flag and $19,980 appears in current assessed amounts.
3. **HEALTH — 27 samples:** Occupational health samples 27 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 2K employee hours and 3 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 1 linked rows:** Contests, conferences and decisions 0 contested-violation rows, 0 civil-penalty docket/decision rows, and 1 conference records linked by issuance number.
6. **CONTRACTORS — 3 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 60 inspection events and 875 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 56.16005 — Securing gas cylinders.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-O/section-56.16005
- **30 CFR 47.44 — Temporary, portable containers.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-47/subpart-E/section-47.44
- **30 CFR 56.14112 — Construction and maintenance of guards.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14112
- **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 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 56.12028 — Testing grounding systems.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12028
- **30 CFR 56.12018 — Identification of power switches.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12018
- **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 56.9301 — Dump site restraints.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-H/section-56.9301

## Source coverage

- **Accident, Injuries, and Illnesses:** 8 rows; 2000-03-27 through 2024-05-20; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2026-05-05 through 2026-05-05; source ID `msha-addresses`
- **Assessed Violations:** 111 rows; 2000-06-01 through 2025-12-03; source ID `msha-assessed-violations`
- **Conferences:** 1 rows; 2012-05-07 through 2012-05-07; source ID `msha-conferences`
- **Contractor Employment and Production — Quarterly:** 586 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 119 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 3 rows; 1950-01-01 through 2018-04-25; source ID `msha-controller-operator-history`
- **Inspections:** 60 rows; 2000-06-01 through 2025-12-03; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 317 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 79 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:** 27 rows; 2002-06-26 through 2025-03-19; source ID `msha-personal-health-samples`
- **Violations:** 112 rows; 2000-06-01 through 2025-12-03; 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/ottawa-plant-3300145`
- JSON: `/api/v1/mines/ottawa-plant-3300145`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/3300145/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/3300145/relationships`
- MCP resource: `mine://3300145/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`