{"schema_version":"secwatch.filing_event.v1","accession":"0001628280-23-023332","form_type":"8-K","ticker":null,"cik":"0001571371","company_name":"Summit Materials, LLC","filed_at":"2023-06-23T23:59:59+00:00","discovered_at":"2026-05-14T18:03:39.460547+00:00","generated_at":"2026-06-13T18:01:11.848416+00:00","sec_items":["1.04","9.01"],"event_type":"regulatory","sentiment":"negative","materiality_score":0.15,"calibrated_materiality_score":0.15,"confidence":"high","headline":"Summit Materials receives MSHA imminent danger order at Norris Quarries plant, quickly resolved","bullets":["MSHA issued 107(a) order on June 21, 2023, during routine inspection of Norris Quarries Plant #65 near Savannah, MO.","Three miners observed working at ~15 ft without fall protection; order terminated same day after corrective action.","No injuries or damages; mine returned to normal operations.","Item 1.04 disclosure under Dodd-Frank Section 1503."],"urls":{"canonical":"https://secwatch.observer/filing/0001628280-23-023332","json":"https://secwatch.observer/filing/0001628280-23-023332.json","markdown":"https://secwatch.observer/filing/0001628280-23-023332.md","text":"https://secwatch.observer/filing/0001628280-23-023332.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1571371/000162828023023332/0001628280-23-023332-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1571371/000162828023023332/sum-20230621.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-13T18:01:11.848416+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}