---
schema_version: "secwatch.filing_event.v1"
accession: "0000822818-23-000009"
form_type: "8-K"
ticker: "CLH"
cik: "0000822818"
company_name: "CLEAN HARBORS INC"
filed_at: "2023-03-01T23:59:59+00:00"
generated_at: "2026-06-18T19:30:16.928602+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 up 14% to $1.28B; full-year Adj. EBITDA tops $1B for first time

## Summary
- Q4 revenue $1.28B (+14% YoY); net income $82.5M ($1.52 EPS); adjusted EPS $1.44.
- Full-year revenue $5.17B (+36% YoY); Adj. EBITDA $1,022M (+51% YoY); record.
- Environmental Services segment Q4 revenue +15%, Adj. EBITDA +35%, margin 22.9%.
- FY 2023 guidance: Adj. EBITDA $1,010-1,050M; Adj. free cash flow $305-345M.
- Q1 2023 Adj. EBITDA expected to increase ~20% YoY.

## SEC filing metadata
- accession: 0000822818-23-000009
- form_type: 8-K
- ticker: CLH
- cik: 0000822818
- company_name: CLEAN HARBORS INC
- filed_at: 2023-03-01T23:59:59+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/822818/000082281823000009/0000822818-23-000009-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/822818/000082281823000009/clh-20230301.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000822818-23-000009
- JSON: https://secwatch.observer/filing/0000822818-23-000009.json
- Plain text: https://secwatch.observer/filing/0000822818-23-000009.txt

## Key facts
- Earnings Releases
  CLEAN HARBORS INC reported the year ended December 31, 2022 results: revenue $5.17 billion, net income $411.7 million, EPS $7.56 per diluted share. Guidance initiated.
  - Period: the year ended December 31, 2022
  - Revenue: $5.17 billion
  - Net income: $411.7 million
  - EPS: $7.56 per diluted share
  - Guidance: initiated
  - Result: reported results
  source text: Clean Harbors’ revenues increased 36% to $5.17 billion compared with $3.81 billion in 2021. Income from operations increased 82% to $634.7 million from $347.9 million in 2021. Net income was $411.7 million, or $7.56 per diluted share
  evidence_url: https://www.sec.gov/Archives/edgar/data/822818/000082281823000009/0000822818-23-000009-index.htm
- Earnings Releases
  CLEAN HARBORS INC reported the fourth quarter ended December 31, 2022 results: revenue $1.28 billion, net income $82.5 million, EPS $1.52 per diluted share. Guidance initiated.
  - Period: the fourth quarter ended December 31, 2022
  - Revenue: $1.28 billion
  - Net income: $82.5 million
  - EPS: $1.52 per diluted share
  - Guidance: initiated
  - Result: reported results
  source text: Revenues increased 14% to $1.28 billion from $1.12 billion in the same period of 2021. Income from operations grew 55% to $127.4 million from $82.2 million in the fourth quarter of 2021. Net income was $82.5 million, or $1.52 per diluted share.
  evidence_url: https://www.sec.gov/Archives/edgar/data/822818/000082281823000009/0000822818-23-000009-index.htm

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