secwatch.observer — SEC 8-K summary
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Issuer:     Waste Connections, Inc. (WCN)
CIK:        0001318220
Form:       8-K
Filed at:   2023-11-30T23:59:59+00:00
Accession:  0001104659-23-122471
Event type: other_material
Sentiment:  negative
Materiality: 0.75
Item codes: 8.01
LLM model:  deepseek-v4-flash:cloud@v2

Waste Connections expects $160M liability increase from landfill event at Chiquita Canyon
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- Increase of ~$160M in landfill closure and post-closure liabilities for FY2023 Form 10-K.
- Costs: ~$30M in Q3/Q4 2023, $75M in 2024, $40M in 2025.
- Attributed to Elevated Temperature Landfill Event (ETLF) at Chiquita Canyon Landfill, Southern California.
- Non-recurring, site-specific; additional costs expected substantially realized by end of 2025.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1318220/000110465923122471/0001104659-23-122471-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1318220/000110465923122471/tm2331859d1_8k.htm
  HTML page:      https://secwatch.observer/filing/0001104659-23-122471

License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer