{"schema_version":"secwatch.filing_event.v1","accession":"0000822818-26-000037","form_type":"8-K","ticker":"CLH","cik":"0000822818","company_name":"CLEAN HARBORS INC","filed_at":"2026-08-12T16:26:33+00:00","discovered_at":"2026-08-12T16:27:00.594141+00:00","generated_at":"2026-08-12T16:27:06.004544+00:00","sec_items":["8.01","9.01"],"event_type":"m_and_a","sentiment":"positive","materiality_score":0.75,"calibrated_materiality_score":0.75,"confidence":"high","headline":"Clean Harbors acquires EnviroServe for $470M; $25M synergies targeted","bullets":["Deal valued at $470M cash; expected close H2 2026, subject to regulatory approval.","EnviroServe: ~$250M revenue, ~$27M adjusted EBITDA, 40 locations, 2,500 customers, 700+ employees.","Clean Harbors expects $25M cost synergies over two years, post-synergy multiple ~9x EBITDA.","Acquisition funded via available cash and additional debt; seller is One Rock Capital Partners.","EnviroServe has 85% recurring revenue; top 10 customer tenure exceeds 16 years; sub-1.0 TRIR safety record."],"urls":{"canonical":"https://secwatch.observer/filing/0000822818-26-000037","json":"https://secwatch.observer/filing/0000822818-26-000037.json","markdown":"https://secwatch.observer/filing/0000822818-26-000037.md","text":"https://secwatch.observer/filing/0000822818-26-000037.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/822818/000082281826000037/0000822818-26-000037-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/822818/000082281826000037/clh-20260812.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-08-12T16:27:06.004544+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"}