---
schema_version: "secwatch.filing_event.v1"
accession: "0000822818-22-000004"
form_type: "8-K"
ticker: "CLH"
cik: "0000822818"
company_name: "CLEAN HARBORS INC"
filed_at: "2022-02-23T23:59:59+00:00"
generated_at: "2026-06-27T05:44:58.354111+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Clean Harbors Q4 revenue $1.12B, Adjusted EBITDA up 23%; guides FY22 EBITDA $765-795M

## Summary
- Q4 revenues $1.12B (+41% YoY), net income $49M, EPS $0.90 (adjusted $0.89).
- Full-year revenue $3.81B; record Adjusted EBITDA $676.6M (+18%) and record adjusted free cash flow $326.3M.
- FY22 guidance: Adjusted EBITDA $765M-$795M, adjusted free cash flow $250M-$290M.
- Incineration utilization 92% in Q4; SKSS segment revenue up >60%, Adj. EBITDA nearly tripled.
- HPC acquisition driven first >$1B quarterly revenue; Industrial Services ex-HPC grew 26%.

## SEC filing metadata
- accession: 0000822818-22-000004
- form_type: 8-K
- ticker: CLH
- cik: 0000822818
- company_name: CLEAN HARBORS INC
- filed_at: 2022-02-23T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/822818/000082281822000004/0000822818-22-000004-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/822818/000082281822000004/clh-20220223.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000822818-22-000004
- JSON: https://secwatch.observer/filing/0000822818-22-000004.json
- Plain text: https://secwatch.observer/filing/0000822818-22-000004.txt

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