---
schema_version: "secwatch.filing_event.v1"
accession: "0000822818-22-000023"
form_type: "8-K"
ticker: "CLH"
cik: "0000822818"
company_name: "CLEAN HARBORS INC"
filed_at: "2022-05-04T23:59:59+00:00"
generated_at: "2026-06-26T01:02:43.417373+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Clean Harbors Q1 revenue $1.17B (+45% YoY), raises 2022 adjusted EBITDA guidance to $800-830M

## Summary
- Q1 revenue $1.17B (+45% YoY); net income $45.3M ($0.83 EPS); adjusted EBITDA $180.3M (+39%, margin 15.4%).
- Environmental Services revenue +45% with incinerator utilization 85%, landfill volumes +14%.
- Safety-Kleen Sustainability Solutions revenue +44%, adjusted EBITDA +64%, collected 53M gal waste oil (+13%).
- Raises 2022 adjusted EBITDA guidance to $800-830M (midpoint +$35M); free cash flow guidance $250-290M.
- Q2 2022 adjusted EBITDA expected to increase 25-30% YoY.

## SEC filing metadata
- accession: 0000822818-22-000023
- form_type: 8-K
- ticker: CLH
- cik: 0000822818
- company_name: CLEAN HARBORS INC
- filed_at: 2022-05-04T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/822818/000082281822000023/0000822818-22-000023-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/822818/000082281822000023/clh-20220504.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000822818-22-000023
- JSON: https://secwatch.observer/filing/0000822818-22-000023.json
- Plain text: https://secwatch.observer/filing/0000822818-22-000023.txt

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