Casella Waste : View Presentation

Casella Waste Systems, Inc.

Investor Meetings

March 2022

Safe Harbor Statement

Certain matters discussed in this presentation, including, but not limited to, the statements regarding our intentions, beliefs or current expectations concerning, among other things, our financial performance; financial condition; operations andinsurance coverage and self-insurance reserves may be inadequate to cover all of its significant risk exposures; fluctuations in energy pricing or the commodity pricing of its recyclables may make it more difficult for the Company to predict its results ofservices; prospects; growth; strategies; anticipated impacts from future or completed operations or meet its estimates; the Company may be unable to achieve its acquisitions; and guidance for fiscal 2022, are "forward-looking statements" intended acquisition or development targets on favorable pricing or at all; the Company may notto qualify for the safe harbors from liability established by the Private Securities Litigation Reform Act of 1995. These forward-looking statements can generally be identified as such by the context of the statements, including words such as "believe," "expect," "anticipate," "plan," "may," "would," "intend," "estimate," "will," "guidance" and other similar expressions, whether in the negative or affirmative. These forward-looking statements are based on current expectations, estimates, forecasts and projections about the industry and markets in which the Company operates and management's beliefs and assumptions. The Company cannot guarantee that it actually will achieve the financial results, plans, intentions, expectations or guidance disclosed in the forward-looking statements made. Such forward-looking statements, and all phases of the Company's operations, involve a number of risks and uncertainties, any one or more of which could cause actual results to differ materially from those described in its forward-looking statements.

be able to successfully integrate acquired businesses; and the Company may incur environmental charges or asset impairments in the future.

There are a number of other important risks and uncertainties that could cause the Company's actual results to differ materially from those indicated by such forward-looking statements. These additional risks and uncertainties include, without limitation, those detailed in Item 1A, "Risk Factors" in the Company's most recently filed Form 10-K and in other filings that the Company may make with the Securities and Exchange Commission in the future.

The Company undertakes no obligation to update publicly any forward-looking statements whether as a result of new information, future events or otherwise, except as required by law.

Such risks and uncertainties include or relate to, among other things, the following: the Company may be unable to adequately increase prices to offset increased costs and inflationary pressures; it is challenging to predict the duration and scope of the COVID-19 pandemic and its negative effect on the economy, our operations and financial results; the capping and closure of the Southbridge Landfill and the lawsuit relating to our landfill in Bethlehem, New Hampshire could result in material unexpected costs; adverse weather conditions may negatively impact the Company's revenues and its operating margin; the Company may be unable to increase volumes at its landfills or improve its route profitability; the Company may be unable to reduce costs or increase pricing or volumes sufficiently to achieve estimated Adjusted EBITDA and other targets; landfill operations and permit status may be affected by factors outside the Company's control; the Company may be required to incur capital expenditures in excess of its estimates; the Company's

Casella Waste Systems - Overview

Casella provides integrated solid waste, recycling and resource services.

• • $889.2mm of revenues for the 12-months ended 12/31/21.

• • Integrated operations located in seven northeast states.

• • Emphasis on integrated solid waste and recycling operations including collection, disposal, and Resource Solutions.

Focused on providing customers with waste and resource solutions.

• • Waste and resource assets are well positioned in the northeast.

• • Robust transfer network allows us to effectively move waste and recyclables to our disposal & processing facilities.

• • Provide customers with value-added Resource Solutions services.

Environmental, Social, and Governance (�ESG)�

Strategic alignment to ESG.

• • We take pride in our history of better enabling our customers and the communities we serve to meet sustainability related goals.

• • Emphasis on providing safe and sustainable environmental services.

• • Founding member of EPA Climate Leaders program in 2005, with a reduction of our Scope 1 and 2 greenhouse gas emissions of -45% from 2005 to 2010.

Focus on enhancing public disclosures.

• • ESG related disclosures, such as our most recent Sustainability Accounting Standards Board ("SASB") report, Carbon Disclosure Project ("CDP") questionnaire response, and our Sustainability Report are located within our ESG Practices website.

  ir.casella.com/esg-practices

Casella Operations

Casella Service Area

50 Collection Operations

23 Recycling Facilities

9 Disposal Facilities (1), (2), (3)

3 Landfill Gas-to-Energy

65 Transfer Stations

Hyland LF

465k tons/yr 29.2mm tons capacity

Ontario LF

918k tons/yr 6.1mm tons capacity

Clinton LF

250k tons/yr 14.5mm tons capacity

North Country LF

No annual cap 0.9mm tons capacity

McKean LF (3)

1.6mm tons/yr 20.8mm tons capacity

Hakes LF

462k tons/yr

Chemung LF

437k tons/yr

1.9mm tons capacity 5.1mm tons capacity

(1) Includes 8 Subtitle D landfills and 1 landfill permitted to accept construction and demolition materials. (2) Total disposal capacity includes permitted and permittable airspace estimates at each site as of 12/31/21. (3) McKean permit of a maximum of 6,500 tons per day, with up to 6,500 tons per day via rail or up to 2,000 tons per day via truck and up to 4,500 tons per day via rail; capped at an average of 6,000 tons per day within any calendar quarter.