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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
 
FORM 8-K
 
CURRENT REPORT
Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934
 
Date of Report (Date of earliest event reported): November 1, 2023
 
CLEAN HARBORS, INC.
(Exact name of registrant as specified in its charter)
 
Massachusetts
001-34223
04-2997780
(State or other jurisdiction
of incorporation)
(Commission
File Number)
(IRS Employer
Identification No.)
42 Longwater DriveNorwellMA02061-9149
(Address of Principal Executive Offices)(Zip Code)

 Registrant’s telephone number, including area code (781) 792-5000
 
Not Applicable
(Former name or former address, if changed since last report.)
 
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
 
☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) 
☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) 
☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) 
☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).
Emerging growth company ☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐
Securities registered pursuant to Section 12(b) of the Act:
Title of each classTrading Symbol
Name of each exchange on which registered
Common Stock, $0.01 par value
CLH
New York Stock Exchange


Item 2.02 Results of Operations and Financial Condition

On November 1, 2023, Clean Harbors, Inc. (the “Company”) issued a press release announcing the Company’s results of operations for the third quarter ended September 30, 2023. A copy of that press release is furnished with this report as Exhibit 99.1.


Item 9.01    Financial Statements and Exhibits.

(d) Exhibits. The following exhibits are being furnished herewith:

Exhibit No.Description
99.1
104The cover page from this Current Report on Form 8-K, formatted in iXBRL (Inline eXtensible Business Reporting Language)
1

SIGNATURES
    Pursuant to the requirements of the Securities and Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
 Clean Harbors, Inc.
 (Registrant)
  
  
November 1, 2023/s/ Eric J. Dugas
 Executive Vice President and Chief Financial Officer







2
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EXHIBIT 99.1
Press Release                                            

Clean Harbors Announces Third-Quarter 2023 Financial Results

•Delivers Q3 Revenue of $1.37 Billion on Growth in Environmental Services
•Achieves Q3 Net Income of $91.3 Million, or EPS of $1.68
•Generates Q3 Adjusted EBITDA of $255.0 Million
•Revises 2023 Adjusted EBITDA and Adjusted Free Cash Flow Guidance

NORWELL, Mass. – November 1, 2023 – Clean Harbors, Inc. (“Clean Harbors”) (NYSE: CLH), the leading provider of environmental and industrial services throughout North America, today announced financial results for the third quarter ended September 30, 2023.
“While underlying business conditions remain favorable, our third-quarter results fell short of expectations primarily due to plant challenges within both our incinerators and re-refineries,” said Mike Battles, Co-Chief Executive Officer. “In the third quarter, we pulled forward an incinerator turnaround planned for October at our Arkansas facility. The resulting backup within our disposal network also impacted our Technical Services business. Within our Safety-Kleen Sustainability Solutions (SKSS) segment, we had lower-than-expected production, which led to lower sales volumes of base oil and higher costs. From a safety perspective, we posted a third-quarter best Total Recordable Incident Rate (TRIR) of 0.62 to remain on track to hit our annual safety goal.”

Third-Quarter Results
Revenues were $1.37 billion compared with $1.36 billion in the same period of 2022. Income from operations was $154.4 million compared with $209.1 million in the third quarter of 2022.

Net income was $91.3 million, or $1.68 per diluted share. This compared with net income of $135.8 million, or $2.50 per diluted share, for the same period in 2022. Adjusted net income in the third quarter of 2022 was $132.4 million, or $2.43 per diluted share. (See reconciliation tables below).

Adjusted EBITDA (see description below) was $255.0 million compared with $308.6 million in the same period of 2022 when SKSS delivered record results on an outsized re-refining spread.

Q3 2023 Segment Review
“Our Environmental Services (ES) segment delivered an 11% increase in Adjusted EBITDA and a 120-basis point margin improvement year-over-year on 6% revenue growth,” said Eric Gerstenberg, Co-Chief Executive Officer. “Within our service businesses, Safety-Kleen Environmental Services revenue grew 14%, while Field Services revenue was up 3%. Industrial Services revenue increased by 5% reflecting contributions from our
Clean Harbors • 42 Longwater Drive • PO Box 9149 • Norwell, Massachusetts 02061-9149 • 800.282.0058 • www.cleanharbors.com
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Thompson Industrial acquisition. Within Technical Services, our incineration utilization improved sequentially to 86%, but was below our Q3 expectations. While our average incineration price rose 3%, it was less than anticipated due to limitations on processing our backlog of containerized incineration waste in the quarter. Project volumes were strong in our landfill business, which processed 19% more tonnage than a year ago at a slightly higher average price.”

“Within our SKSS segment, revenue and profitability fell short of expectations as a result of reduced sales volume and increased costs related to plant challenges in the back half of the quarter, which included a delayed start-up at our California plant,” said Battles. “The SKSS team collected 59 million gallons of waste oil in the third quarter at a charge-for-oil (CFO) level that exceeded the second quarter and compares with a pay-for-oil model in the prior year period. Overall base oil pricing began to improve late in the quarter as rising crude pricing and healthy demand drove up the value of base oil in September and into early Q4.”

New Incinerator Buildout Ahead of Schedule
“The construction of our $180 million incinerator in Kimball, Nebraska is moving forward ahead of schedule,” said Gerstenberg. “We recently held a ‘topping off’ ceremony at the facility with a number of elected state and local officials who have supported the project. Based on our progress, we have accelerated our anticipated start date to just before year-end in 2024. In light of market demand, we are excited to complete this incinerator and launch commercial operations as soon as possible. We continue to have good discussions with customers and owners of captive incinerators and expect demand to grow in the years ahead due to reshoring, environmental regulations and other positive market trends. We expect the 70,000 tons of added capacity to be readily absorbed by the marketplace.”

Business Outlook and Financial Guidance
“Looking ahead, we expect that the challenges we faced in Q3 are behind us and our incinerators and re-refineries should both run strong through year end,” said Gerstenberg. “Demand across our key ES businesses and underlying market conditions remain favorable. We expect Industrial Services to close out a record year in the fourth quarter capitalizing on cost, productivity and cross-selling opportunities that have existed all year. Within our disposal network, a healthy backlog of incineration drums and some recent retail wins kicking off toward year end will support us burning higher value waste streams going forward. Our project pipeline shows no sign of slowing with more reshoring, government spending through multiple legislative acts, and PFAS regulations on the horizon. We continue to anticipate a record year in our ES segment with Adjusted EBITDA growth in the mid-teens percentage range.”

“Within SKSS, our re-refineries are now running at full production rates in the fourth quarter. Given where base oil and lubricant markets are today, we expect to post a large sequential increase in profitability in this segment in Q4 and should enter 2024 with positive momentum. On the front end of the spread, we continue to control costs on the collection side while ensuring we have enough supply to maximize output at our re-refineries,”
Clean Harbors • 42 Longwater Drive • PO Box 9149 • Norwell, Massachusetts 02061-9149 • 800.282.0058 • www.cleanharbors.com
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Battles concluded. “Overall, we continue to see strong growth dynamics for the Company, particularly in our ES segment, and remain confident in our Vision 2027 strategy.”

In the fourth quarter, Clean Harbors expects Adjusted EBITDA to grow by approximately 15% year-over-year. In light of current market conditions and third-quarter results, for full-year 2023, Clean Harbors now expects:
•Adjusted EBITDA in the range of $1.005 billion to $1.025 billion or a midpoint of $1.015 billion. This range is based on anticipated GAAP net income in the range of $364 million to $384 million; and
•Adjusted free cash flow in the range of $300 million to $330 million, or a midpoint of $315 million, which includes approximately $85 million of spending related to the Kimball incinerator. This range is based on anticipated net cash from operating activities in the range of $700 million to $750 million.

Non-GAAP Results
Clean Harbors reports Adjusted EBITDA, which is a non-GAAP financial measure and should not be considered an alternative to net income or other measurements under generally accepted accounting principles (GAAP) but viewed only as a supplement to those measurements. Adjusted EBITDA is not calculated identically by all companies, and therefore the Company’s measurement of Adjusted EBITDA may not be comparable to similarly titled measures reported by other companies. Clean Harbors believes that Adjusted EBITDA provides additional useful information to investors since the Company’s loan covenants are based upon levels of Adjusted EBITDA achieved and management routinely evaluates the performance of its businesses based upon levels of Adjusted EBITDA. The Company defines Adjusted EBITDA in accordance with its existing revolving credit agreement, as described in the following reconciliation showing the differences between reported net income and Adjusted EBITDA for the three and nine months ended September 30, 2023 and 2022 (in thousands, except percentages):
For the Three Months EndedFor the Nine Months Ended
September 30, 2023September 30, 2022September 30, 2023September 30, 2022
Net income$91,340 $135,799 $279,507 $329,270 
Accretion of environmental liabilities3,388 3,246 10,281 9,599 
Stock-based compensation4,291 7,828 14,809 20,375 
Depreciation and amortization92,970 88,394 267,425 260,560 
Other (income) expense, net(334)(104)833 (2,073)
Loss on early extinguishment of debt— — 2,362 — 
Gain on sale of business— — — (8,864)
Interest expense, net of interest income29,696 28,081 80,400 79,354 
Provision for income taxes33,666 45,311 102,044 109,663 
Adjusted EBITDA$255,017 $308,555 $757,661 $797,884 
Adjusted EBITDA Margin18.7 %22.6 %18.6 %20.5 %
This press release includes a discussion of net income and earnings per share adjusted for the loss on early extinguishment of debt, gain on sale of business and the impacts of tax-related valuation allowances and other items as identified in the reconciliations provided below. The Company believes that discussion of these additional non-GAAP measures provides investors with meaningful comparisons of current results to prior periods’ results by excluding items that the Company does not believe reflect its fundamental business
Clean Harbors • 42 Longwater Drive • PO Box 9149 • Norwell, Massachusetts 02061-9149 • 800.282.0058 • www.cleanharbors.com
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performance. The following table shows the difference between net income and adjusted net income, and the difference between earnings per share and adjusted earnings per share, for the three and nine months ended September 30, 2023 and 2022 (in thousands, except per share amounts):
For the Three Months EndedFor the Nine Months Ended
September 30, 2023September 30, 2022September 30, 2023September 30, 2022
Adjusted net income
Net income$91,340 $135,799 $279,507 $329,270 
Loss on early extinguishment of debt— — 2,362 — 
Gain on sale of business— — — (8,864)
Tax-related valuation allowances and other*— (3,399)(653)(9,494)
Adjusted net income$91,340 $132,400 $281,216 $310,912 
Adjusted earnings per share
Earnings per share$1.68 $2.50 $5.14 $6.04 
Loss on early extinguishment of debt— — 0.04 — 
Gain on sale of business— — — (0.16)
Tax-related valuation allowances and other*— (0.07)(0.01)(0.18)
Adjusted earnings per share
$1.68 $2.43 $5.17 $5.70 
* Other amounts include ($0.7) million or ($0.01) per share of tax impacts from the loss on early extinguishment of debt for the nine months ended September 30, 2023.


Adjusted Free Cash Flow Reconciliation
Clean Harbors reports adjusted free cash flow, which it considers to be a measurement of liquidity that provides useful information to investors about its ability to generate cash. The Company defines adjusted free cash flow as net cash from operating activities excluding cash impacts of items derived from non-operating activities, less additions to property, plant and equipment plus proceeds from sale and disposal of fixed assets. Adjusted free cash flow should not be considered an alternative to net cash from operating activities or other measurements under GAAP. Adjusted free cash flow is not calculated identically by all companies, and therefore the Company’s measurement of adjusted free cash flow may not be comparable to similarly titled measures reported by other companies.
An itemized reconciliation between net cash from operating activities and adjusted free cash flow is as follows for the three and nine months ended September 30, 2023 and 2022 (in thousands):
For the Three Months EndedFor the Nine Months Ended
September 30, 2023September 30, 2022September 30, 2023September 30, 2022
Adjusted free cash flow
Net cash from operating activities$220,119 $225,572 $455,692 $357,542 
Additions to property, plant and equipment(107,608)(96,505)(311,906)(244,547)
Proceeds from sale and disposal of fixed assets2,185 2,095 5,129 5,118 
Adjusted free cash flow$114,696 $131,162 $148,915 $118,113 
Clean Harbors • 42 Longwater Drive • PO Box 9149 • Norwell, Massachusetts 02061-9149 • 800.282.0058 • www.cleanharbors.com
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Adjusted EBITDA Guidance Reconciliation
An itemized reconciliation between projected GAAP net income and projected Adjusted EBITDA is as follows (in millions):
For the Year Ending December 31, 2023
Projected GAAP net income$364to$384
Adjustments:
Accretion of environmental liabilities14to13
Stock-based compensation19to22
Depreciation and amortization360to350
Loss on early extinguishment of debt2to2
Interest expense, net111to109
Provision for income taxes135to145
Projected Adjusted EBITDA$1,005to$1,025
Adjusted Free Cash Flow Guidance Reconciliation
An itemized reconciliation between projected net cash from operating activities and projected adjusted free cash flow is as follows (in millions):
For the Year Ending December 31, 2023
Projected net cash from operating activities$700to$750
Additions to property, plant and equipment(410)to(430)
Proceeds from sale and disposal of fixed assets10to10
Projected adjusted free cash flow$300to$330
Conference Call Information
Clean Harbors will conduct a conference call for investors today at 9:00 a.m. (ET) to discuss the information contained in this press release. During the call, management will discuss Clean Harbors’ financial results, business outlook and growth strategy. Investors who wish to listen to the webcast and view the accompanying slides should visit the Investor Relations section of the Company’s website at www.cleanharbors.com. The live call also can be accessed by dialing 877.709.8155 or 201.689.8881 prior to the start time. If you are unable to listen to the live conference call, the webcast will be archived on the Company’s website.
About Clean Harbors
Clean Harbors (NYSE: CLH) is North America’s leading provider of environmental and industrial services. The Company serves a diverse customer base, including a majority of Fortune 500 companies. Its customer base spans a number of industries, including chemical, manufacturing and refining, as well as numerous government agencies. These customers rely on Clean Harbors to deliver a broad range of services such as end-to-end hazardous waste management, emergency spill response, industrial cleaning and maintenance, and recycling services. Through its Safety-Kleen subsidiary, Clean Harbors also is North America’s largest re-refiner and recycler of used oil and a leading provider of parts washers and environmental services to commercial,
Clean Harbors • 42 Longwater Drive • PO Box 9149 • Norwell, Massachusetts 02061-9149 • 800.282.0058 • www.cleanharbors.com
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industrial and automotive customers. Founded in 1980 and based in Massachusetts, Clean Harbors operates in the United States, Canada, Mexico, Puerto Rico and India. For more information, visit www.cleanharbors.com.
Safe Harbor Statement
Any statements contained herein that are not historical facts are forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements are generally identifiable by use of the words “believes,” “expects,” “intends,” “anticipates,” “plans to,” “seeks,” “should,” “estimates,” “projects,” “may,” “likely,” or similar expressions. Such statements may include, but are not limited to, statements about future financial and operating results, and other statements that are not historical facts. Such statements are based upon the beliefs and expectations of Clean Harbors’ management as of this date only and are subject to certain risks and uncertainties that could cause actual results to differ materially, including, without limitation, those items identified as “Risk Factors” in Clean Harbors’ most recently filed Form 10-K and Form 10-Q. Forward-looking statements are neither historical facts nor assurances of future performance. Therefore, readers are cautioned not to place undue reliance on these forward-looking statements. Clean Harbors undertakes no obligation to revise or publicly release the results of any revision to these forward-looking statements other than through its filings with the Securities and Exchange Commission, which may be viewed in the “Investors” section of Clean Harbors’ website at www.cleanharbors.com.
Contacts:
Eric J. Dugas
Jim Buckley
EVP and Chief Financial Officer
SVP Investor Relations
Clean Harbors, Inc.
Clean Harbors, Inc.
781.792.5100
781.792.5100
InvestorRelations@cleanharbors.com
Buckley.James@cleanharbors.com
    
Clean Harbors • 42 Longwater Drive • PO Box 9149 • Norwell, Massachusetts 02061-9149 • 800.282.0058 • www.cleanharbors.com
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CLEAN HARBORS, INC. AND SUBSIDIARIES
UNAUDITED CONSOLIDATED STATEMENTS OF OPERATIONS
(in thousands, except per share amounts)

 For the Three Months EndedFor the Nine Months Ended
September 30, 2023September 30, 2022September 30, 2023September 30, 2022
Revenues$1,365,696 $1,363,086 $4,070,983 $3,888,507 
Cost of revenues: (exclusive of items shown separately below)943,951 910,648 2,822,977 2,652,506 
Selling, general and administrative expenses171,019 151,711 505,154 458,492 
Accretion of environmental liabilities3,388 3,246 10,281 9,599 
Depreciation and amortization92,970 88,394 267,425 260,560 
Income from operations154,368 209,087 465,146 507,350 
Other income (expense), net334 104 (833)2,073 
Loss on early extinguishment of debt— — (2,362)— 
Gain on sale of business— — — 8,864 
Interest expense, net(29,696)(28,081)(80,400)(79,354)
Income before provision for income taxes125,006 181,110 381,551 438,933 
Provision for income taxes33,666 45,311 102,044 109,663 
Net income$91,340 $135,799 $279,507 $329,270 
Earnings per share:  
Basic$1.69 $2.51 $5.17 $6.07 
Diluted$1.68 $2.50 $5.14 $6.04 
Shares used to compute earnings per share - Basic54,12254,11154,09754,278
Shares used to compute earnings per share - Diluted54,41954,38154,41154,542


Clean Harbors • 42 Longwater Drive • PO Box 9149 • Norwell, Massachusetts 02061-9149 • 800.282.0058 • www.cleanharbors.com
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CLEAN HARBORS, INC. AND SUBSIDIARIES
UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS
(in thousands)
September 30, 2023December 31, 2022
Current assets:  
Cash and cash equivalents$335,965 $492,603 
Short-term marketable securities84,007 62,033 
Accounts receivable, net1,010,335 964,603 
Unbilled accounts receivable130,888 107,010 
Inventories and supplies311,512 324,994 
Prepaid expenses and other current assets78,045 82,518 
Total current assets1,950,752 2,033,761 
Property, plant and equipment, net2,128,508 1,980,302 
Other assets:
Operating lease right-of-use assets188,695 166,181 
Goodwill1,286,473 1,246,878 
Permits and other intangibles, net613,540 620,782 
Other80,211 81,803 
Total other assets2,168,919 2,115,644 
Total assets$6,248,179 $6,129,707 
Current liabilities:
Current portion of long-term debt$10,000 $10,000 
Accounts payable414,963 446,629 
Deferred revenue102,468 94,094 
Accrued expenses and other current liabilities369,097 396,716 
Current portion of closure, post-closure and remedial liabilities21,759 23,123 
Current portion of operating lease liabilities57,100 49,532 
Total current liabilities975,387 1,020,094 
Other liabilities: 
Closure and post-closure liabilities, less current portion108,466 105,596 
Remedial liabilities, less current portion101,370 106,372 
Long-term debt, less current portion2,292,952 2,414,828 
Operating lease liabilities, less current portion133,163 119,259 
Deferred tax liabilities347,628 350,389 
Other long-term liabilities103,419 90,847 
Total other liabilities3,086,998 3,187,291 
       Total stockholders’ equity, net
2,185,794 1,922,322 
       Total liabilities and stockholders’ equity
$6,248,179 $6,129,707 
Clean Harbors • 42 Longwater Drive • PO Box 9149 • Norwell, Massachusetts 02061-9149 • 800.282.0058 • www.cleanharbors.com
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CLEAN HARBORS, INC. AND SUBSIDIARIES
UNAUDITED CONSOLIDATED STATEMENTS OF CASH FLOWS
(in thousands)
For the Nine Months Ended
September 30, 2023September 30, 2022
Cash flows from operating activities:
Net income$279,507 $329,270 
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization267,425 260,560 
Allowance for doubtful accounts2,620 6,684 
Amortization of deferred financing costs and debt discount4,036 4,734 
Accretion of environmental liabilities10,281 9,599 
Changes in environmental liability estimates3,258 2,105 
Deferred income taxes(356)2,226 
Other expense (income), net833 (2,073)
Stock-based compensation14,809 20,375 
Loss on early extinguishment of debt2,362 — 
Gain on sale of business— (8,864)
Environmental expenditures(24,064)(9,720)
Changes in assets and liabilities, net of acquisitions:
Accounts receivable and unbilled accounts receivable(46,445)(293,562)
Inventories and supplies12,691 (44,324)
Other current and non-current assets(18,190)(12,600)
Accounts payable(40,013)52,979 
Other current and long-term liabilities(13,062)40,153 
Net cash from operating activities455,692 357,542 
Cash flows used in investing activities:
Additions to property, plant and equipment(311,906)(244,547)
Proceeds from sale and disposal of fixed assets5,129 5,118 
Acquisitions, net of cash acquired(119,596)(73,568)
Proceeds from sale of business, net of transaction costs750 16,811 
Additions to intangible assets including costs to obtain or renew permits(1,507)(1,094)
Purchases of available-for-sale securities(104,329)(36,418)
Proceeds from sale of available-for-sale securities84,390 51,736 
Net cash used in investing activities(447,069)(281,962)
Cash flows used in financing activities:
Change in uncashed checks3,004 887 
Tax payments related to withholdings on vested restricted stock(10,886)(6,214)
Repurchases of common stock(18,000)(44,182)
Deferred financing costs paid(6,371)(410)
Payments on finance leases(11,594)(9,538)
Principal payments on debt(621,475)(13,152)
Proceeds from issuance of debt500,000 — 
Borrowing from revolving credit facility114,000 — 
Payment on revolving credit facility(114,000)— 
Net cash used in financing activities(165,322)(72,609)
Effect of exchange rate change on cash61 (6,523)
Decrease in cash and cash equivalents(156,638)(3,552)
Cash and cash equivalents, beginning of period492,603 452,575 
Cash and cash equivalents, end of period$335,965 $449,023 

Clean Harbors • 42 Longwater Drive • PO Box 9149 • Norwell, Massachusetts 02061-9149 • 800.282.0058 • www.cleanharbors.com
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Supplemental information:
Cash payments for interest and income taxes:
Interest paid$100,813 $86,407 
Income taxes paid, net of refunds107,328 53,183 
Non-cash investing activities:
Property, plant and equipment accrued29,127 23,726 
Remedial liability assumed in acquisition of property, plant and equipment— 8,092 
ROU assets obtained in exchange for operating lease liabilities61,741 39,899 
ROU assets obtained in exchange for finance lease liabilities26,317 11,263 

Supplemental Segment Data (in thousands)

For the Three Months Ended
RevenueSeptember 30, 2023September 30, 2022
Third-Party RevenuesIntersegment Revenues (Expenses), netDirect RevenuesThird-Party RevenuesIntersegment Revenues (Expenses), netDirect Revenues
Environmental Services$1,135,279 $11,084 $1,146,363 $1,080,032 $6,452 $1,086,484 
Safety-Kleen Sustainability Solutions230,305 (11,084)219,221 282,771 (6,452)276,319 
Corporate Items112 — 112 283 — 283 
Total$1,365,696 $— $1,365,696 $1,363,086 $— $1,363,086 

For the Nine Months Ended
RevenueSeptember 30, 2023September 30, 2022
Third-Party RevenuesIntersegment Revenues (Expenses), netDirect RevenuesThird-Party RevenuesIntersegment Revenues (Expenses), netDirect Revenues
Environmental Services$3,357,743 $31,397 $3,389,140 $3,105,336 $19,336 $3,124,672 
Safety-Kleen Sustainability Solutions712,905 (31,397)681,508 782,737 (19,336)763,401 
Corporate Items335 — 335 434 — 434 
Total$4,070,983 $— $4,070,983 $3,888,507 $— $3,888,507 
For the Three Months EndedFor the Nine Months Ended
Adjusted EBITDASeptember 30, 2023September 30, 2022September 30, 2023September 30, 2022
Environmental Services$288,982 $260,687 $822,949 $713,630 
Safety-Kleen Sustainability Solutions31,146 103,156 126,024 252,043 
Corporate Items(65,111)(55,288)(191,312)(167,789)
Total$255,017 $308,555 $757,661 $797,884 

Clean Harbors • 42 Longwater Drive • PO Box 9149 • Norwell, Massachusetts 02061-9149 • 800.282.0058 • www.cleanharbors.com
v3.23.3
Cover
Nov. 01, 2023
Cover [Abstract]  
Document Type 8-K
Document Period End Date Nov. 01, 2023
Entity Registrant Name CLEAN HARBORS, INC
Entity Incorporation, State or Country Code MA
Entity File Number 001-34223
Entity Tax Identification Number 04-2997780
Entity Address, Address Line One 42 Longwater Drive
Entity Address, City or Town Norwell
Entity Address, State or Province MA
Entity Address, Postal Zip Code 02061-9149
City Area Code 781
Local Phone Number 792-5000
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company false
Title of 12(b) Security Common Stock, $0.01 par value
Trading Symbol CLH
Security Exchange Name NYSE
Entity Central Index Key 0000822818
Amendment Flag false
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