{"schema_version":"secwatch.filing_event.v1","accession":"0000911177-24-000120","form_type":"8-K","ticker":"CWST","cik":"0000911177","company_name":"CASELLA WASTE SYSTEMS INC","filed_at":"2024-12-10T23:59:59+00:00","discovered_at":"2026-05-14T18:03:11.356284+00:00","generated_at":"2026-05-29T05:25:36.191101+00:00","sec_items":["8.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.35,"calibrated_materiality_score":0.35,"confidence":"high","headline":"Casella Waste Systems: Ontario County landfill to close by end of 2028; no material impact expected","bullets":["Ontario County Board of Supervisors approved motion to close Ontario Landfill at end of 2028 upon expiration of 25-year OML.","Company expects to redirect waste to other landfills in New York and Pennsylvania before closure.","Casella has already amortized costs and accrued asset retirement obligations based on assumed closure at OML expiry.","Company does not believe the closure will materially affect results of operations or financial condition."],"urls":{"canonical":"https://secwatch.observer/filing/0000911177-24-000120","json":"https://secwatch.observer/filing/0000911177-24-000120.json","markdown":"https://secwatch.observer/filing/0000911177-24-000120.md","text":"https://secwatch.observer/filing/0000911177-24-000120.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/911177/000091117724000120/0000911177-24-000120-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/911177/000091117724000120/cwst-20241205.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-29T05:25:36.191101+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"}