# SUNNYSIDE WASTE COAL SITE

- **MSHA mine ID:** 4202093
- **Status:** Temporarily Idled
- **Type / commodity:** Facility / Coal (Bituminous)
- **Location:** Carbon, UT
- **Operator:** SUNNYSIDE COGENERATION ASSOCIATES
- **Controller:** Exelon Corporation; ACI (American Consumer Industries Inc)
- **Public source rows linked:** 2,505
- **Source coverage:** 17 / 20
- **Generated:** 2026-10-17T06:17:15.228Z

## Current entity hierarchy

**Exelon Corporation; ACI (American Consumer Industries Inc) (C15900) → SUNNYSIDE COGENERATION ASSOCIATES (P24344) → SUNNYSIDE WASTE COAL SITE (4202093)**

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

## Controller and operator valid-time history

- **Savage Companies → Savage Industries Inc:** 1993-08-01 through 1997-07-30; derived from co-tenure at mine 4202093; source `msha-controller-operator-history`.
- **Northern States Power Co et al → Sunnyside Cogeneration Associates:** 1997-07-31 through 2000-01-18; derived from co-tenure at mine 4202093; source `msha-controller-operator-history`.
- **Exelon Corporation et al → Sunnyside Cogeneration Associates:** 2000-01-19 through current/open; derived from co-tenure at mine 4202093; source `msha-controller-operator-history`.
- **ACI (American Consumer Industries Inc) et al → Sunnyside Cogeneration Associates:** 2000-01-19 through current/open; derived from co-tenure at mine 4202093; 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 — 2 since 2021:** Accidents and injuries 7 historical accident/injury rows; 0 coded fatalities and 86 lost days across the published record.
2. **COMPLIANCE — 13 since 2021:** Violations and penalties 166 violation rows across the full record; 92 carry an S&S flag and $68,211 appears in current assessed amounts.
3. **HEALTH — 526 samples:** Occupational health samples 329 coal dust; 26 coal quartz; 171 noise. 0 personal-sample rows have a published C/E ratio above 1; 1 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 5K employee hours and 7 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 36 linked rows:** Contests, conferences and decisions 8 contested-violation rows, 8 civil-penalty docket/decision rows, and 20 conference records linked by issuance number.
6. **CONTRACTORS — 5 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 — 20 since 2021:** Inspections 101 inspection events and 2K published inspection hours across the historical record.

## EIA annual operating context

- **Reporting year:** 2024
- **Production:** 0 short tons
- **Labor hours:** 21,164
- **Average employees:** 11
- **Coal supply region:** Uinta Region
- **Union code:** Not published
- **Published rows under this MSHA ID:** 1

## Recent Title 30 crosswalk

Snapshot current through 2026-08-19.

- **30 CFR 77.1607 — Loading and haulage equipment; operation.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-Q/section-77.1607
- **30 CFR 77.202 — Dust accumulations in surface installations.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-C/section-77.202
- **30 CFR 77.1109 — Quantity and location of firefighting equipment.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-L/section-77.1109
- **30 CFR 77.512 — Inspection and cover plates.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-F/section-77.512
- **30 CFR 77.1103 — Flammable liquids; storage.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-L/section-77.1103
- **30 CFR 77.215 — Refuse piles; construction requirements.** (2 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-C/section-77.215
- **30 CFR 48.29 — Records of training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-48/subpart-B/section-48.29
- **30 CFR 48.28 — Annual refresher training of miners; minimum courses of instruction; hours of instruction.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-48/subpart-B/section-48.28

## Source coverage

- **Accident, Injuries, and Illnesses:** 7 rows; 2013-12-06 through 2023-03-16; source ID `msha-accidents`
- **Addresses of Record:** 1 rows; 2026-05-21 through 2026-05-21; source ID `msha-addresses`
- **Assessed Violations:** 164 rows; 2000-02-03 through 2024-11-19; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 8 rows; 2007-05-09 through 2015-08-19; source ID `msha-civil-penalty-dockets-decisions`
- **Coal Dust Samples:** 329 rows; 2000-01-28 through 2025-08-27; source ID `msha-coal-dust-samples`
- **Conferences:** 20 rows; 2005-05-02 through 2019-12-12; source ID `msha-conferences`
- **Contested Violations:** 8 rows; 2005-01-18 through 2014-03-13; source ID `msha-contested-violations`
- **Contractor Employment and Production — Quarterly:** 1,148 rows; unknown through unknown; source ID `msha-contractor-production-quarterly`
- **Contractor Employment and Production — Yearly:** 245 rows; unknown through unknown; source ID `msha-contractor-production-yearly`
- **Controller and Operator History:** 4 rows; 1993-08-01 through 2000-01-19; source ID `msha-controller-operator-history`
- **Inspections:** 101 rows; 2000-01-28 through 2026-05-05; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 27 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`
- **Noise Samples:** 171 rows; 2000-10-31 through 2025-06-24; source ID `msha-noise-samples`
- **Quartz Samples — Coal:** 26 rows; 2000-02-23 through 2025-06-24; source ID `msha-quartz-samples`
- **Violations:** 166 rows; 2000-02-03 through 2024-11-19; 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/sunnyside-waste-coal-site-4202093`
- JSON: `/api/v1/mines/sunnyside-waste-coal-site-4202093`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/4202093/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/4202093/relationships`
- MCP resource: `mine://4202093/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`