---
schema_version: "secwatch.filing_event.v1"
accession: "0000822818-23-000038"
form_type: "8-K"
ticker: "CLH"
cik: "0000822818"
company_name: "CLEAN HARBORS INC"
filed_at: "2023-08-02T23:59:59+00:00"
generated_at: "2026-06-12T15:45:54.425956+00:00"
event_type: "earnings"
sentiment: "neutral"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Clean Harbors Q2 EPS $2.13 as ES growth offsets SKSS weakness; reiterates FY guidance

## Summary
- Revenue $1.40B (+3% YoY); GAAP net income $115.8M ($2.13) vs $148.2M ($2.71) last year.
- Adjusted EBITDA $287.5M (20.6% margin), down from $309.1M; ES segment EBITDA +13% with 26% margin.
- SKSS segment declined on base oil price headwinds; Q2 collected 64M gallons of used oil.
- FY23 guidance reaffirmed: Adj. EBITDA $1.02B-$1.06B; adj. free cash flow $305M-$345M.
- Incineration utilization 84%; avg incineration price +8%, landfill price/ton +21%.

## SEC filing metadata
- accession: 0000822818-23-000038
- form_type: 8-K
- ticker: CLH
- cik: 0000822818
- company_name: CLEAN HARBORS INC
- filed_at: 2023-08-02T23:59:59+00:00
- event_type: earnings
- sentiment: neutral
- 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/822818/000082281823000038/0000822818-23-000038-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/822818/000082281823000038/clh-20230802.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000822818-23-000038
- JSON: https://secwatch.observer/filing/0000822818-23-000038.json
- Plain text: https://secwatch.observer/filing/0000822818-23-000038.txt

## Key facts
- Earnings Releases
  CLEAN HARBORS INC reported the second quarter ended June 30, 2023 results: revenue $1.40 billion, net income $115.8 million, EPS $2.13 per diluted share. Guidance reaffirmed.
  - Period: the second quarter ended June 30, 2023
  - Revenue: $1.40 billion
  - Net income: $115.8 million
  - EPS: $2.13 per diluted share
  - Guidance: reaffirmed
  - Result: reported results
  source text: release is furnished with this report as Exhibit 99.1. --- EX-99 (EX-99) --- Press Release Clean Harbors Announces Second-Quarter 2023 Financial Results • Grows Q2 Revenue to $1.4 Billion on Continued Strength in Environmental Services • Generates Q2 Net Income of $115.8 Million, or EPS and Adjusted EPS of $2.13 • Delivers Q2 Adjusted EBITDA of $287.5 Million •
  evidence_url: https://www.sec.gov/Archives/edgar/data/822818/000082281823000038/0000822818-23-000038-index.htm

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