---
schema_version: "secwatch.filing_event.v1"
accession: "0000911177-24-000084"
form_type: "8-K"
ticker: "CWST"
cik: "0000911177"
company_name: "CASELLA WASTE SYSTEMS INC"
filed_at: "2024-09-06T23:59:59+00:00"
generated_at: "2026-05-31T06:09:45.258407+00:00"
event_type: "other_material"
sentiment: "negative"
materiality_score: 0.45
calibrated_materiality_score: 0.45
confidence: "high"
source: SEC EDGAR
---

# Casella Waste Systems expects $9M charge for Southbridge Landfill post-closure permit

## Summary
- Massachusetts DEP issued final closure permit for Southbridge Landfill on Aug 15, 2024, requiring expanded post-closure conditions.
- Company will record ~$9.0M charge in Q3 2024 to revise the accrued post-closure liability.
- Charge will be excluded from Adjusted EBITDA and Adjusted Net Income per historical practice.
- Additional charges possible if permit conditions are modified in the future.

## SEC filing metadata
- accession: 0000911177-24-000084
- form_type: 8-K
- ticker: CWST
- cik: 0000911177
- company_name: CASELLA WASTE SYSTEMS INC
- filed_at: 2024-09-06T23:59:59+00:00
- event_type: other_material
- sentiment: negative
- materiality_score: 0.45
- calibrated_materiality_score: 0.45
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/911177/000091117724000084/0000911177-24-000084-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/911177/000091117724000084/cwst-20240906.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000911177-24-000084
- JSON: https://secwatch.observer/filing/0000911177-24-000084.json
- Plain text: https://secwatch.observer/filing/0000911177-24-000084.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.