Exhibit 99.1

FOR IMMEDIATE RELEASE

CASELLA WASTE SYSTEMS, INC. ANNOUNCES FOURTH QUARTER AND FISCAL YEAR 2012 RESULTS; PROVIDES FISCAL YEAR 2013 GUIDANCE

RUTLAND, VERMONT (June 27, 2012) — Casella Waste Systems, Inc. (NASDAQ: CWST), a regional solid waste, recycling and resource management services company, today reported financial results for its fourth quarter and 2012 fiscal year, and gave guidance for its 2013 fiscal year.

Highlights for the quarter included:

·                  Solid waste pricing growth of 1.3 percent was primarily driven by strong collection line-of-business pricing growth of 2.3 percent.

·                  Positive growth of 0.8 percent in solid waste volumes.

·                  Adjusted EBITDA* was $19.9 million for the quarter, up $1.6 million from same quarter last year.

For the quarter ended April 30, 2012, revenues were $109.2 million, down $0.3 million or 0.3 percent from the same quarter last year, with strong collection pricing offset by lower collection volumes and lower recycling commodity prices.

The current quarter includes a $40.7 million non-cash asset impairment charge for our Eastern Region assets related to the potential sale of the Maine Energy Recovery Company, a waste-to-energy facility, and a $0.3 million loss on debt modification.  The quarter ended April 30, 2011 also included various unusual and one-time items, including a $45.6 million gain on the disposal of discontinued operations, net of income taxes.

Including the non-cash asset impairment charge and the loss on debt modification charge, the company’s net loss attributable to common shareholders was ($49.1) million, or ($1.83) per common share for the quarter, compared to net income of $48.8 million, or $1.85 per share for the same quarter last year.

Operating loss was ($37.8) million for the quarter, down $35.2 million from the same quarter last year.  Excluding the unusual and one-time gains and charges from each period, Adjusted Operating Income* in the current quarter was $2.9 million, up $0.8 million from the same quarter last year.

“We made significant progress in fiscal year 2012 on several important operational and strategic fronts, including the introduction of a successful collection pricing program, the consolidation of back-office functions into a shared services center, and the issuance of permits and resolution of long-standing legal challenges at three of our landfills,” said John W. Casella, chairman and CEO of Casella Waste Systems.  “We are particularly pleased with our ability to yield price in a difficult economic environment.  Our new yield management tools and philosophy have positioned the company as a market price leader, particularly in secondary and tertiary markets.”

“We have implemented a number of strategies to improve financial performance and reduce our exposure to risk in the future,” Casella said.  “We continue to see weakness in the economy during the first two months of our fiscal year, with lower special waste volumes to the landfills and lower energy prices.  As a result of that uncertainty, we are providing a fairly muted outlook for fiscal year 2013.  Our focus for fiscal year 2013 includes: selling our waste-to-energy facility, capturing more of our landfill volumes at the curb, continuing to improve our operating efficiencies, effectively managing pricing yield, and improving free cash generation.”

Fiscal Year 2012 Financial Results

Highlights for the fiscal year included:

·                  Solid waste pricing growth of 1.3 percent was primarily driven by strong collection line-of-business pricing growth of 2.6 percent.

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·                  Positive growth of 0.8 percent in solid waste volumes.

·                  Adjusted EBITDA was $101.2 million for the fiscal year, up $1.9 million from last year.

For the fiscal year ended April 30, 2012, revenues were $480.8 million, up $14.7 million or 3.2 percent over fiscal year 2011.  The current fiscal year includes a $40.7 million non-cash asset impairment charge, $1.4 million legal settlement charges, a $0.1 million development project charge, a $0.3 million loss on debt modification, the company’s 50 percent share of US GreenFiber LLC’s $10.2 million non-cash goodwill impairment charge, and a $10.7 million non-cash impairment of equity method investment charge to write down the book value of the US GreenFiber LLC investment.  Fiscal year 2011 also included various unusual and one-time items, including a $43.6 million gain on the disposal of discontinued operations net of income taxes.

The company’s net loss attributable to common shareholders was ($77.6) million, or ($2.90) per common share for fiscal year 2012, compared to a net income of $38.4 million, or $1.47 per share for the same period last year.

Operating loss was ($11.5) million for fiscal year 2012, down $40.1 million from the same period last year.  Excluding the unusual and one-time gains and charges from each period, Adjusted Operating Income for fiscal year 2012 was $30.7 million, up $0.9 million from the same period last year.

Fiscal 2013 Outlook

“In fiscal year 2013, our emphasis will be on improving cash flows through opportunistic pricing, cost controls and operating efficiencies, and volume growth through focused capital deployment,” Casella said.  “Our plan for the fiscal year assumes that economic activity remains soft with limited GDP growth, energy prices remain at current low levels, and landfill special waste volumes decline.”

The company provided guidance for its fiscal year 2013, which began May 1, 2012, by estimating results in the following ranges:

·                  Revenues between $482.0 million and $492.0 million (representing growth of 0.2 percent to 2.3 percent);

·                  Adjusted EBITDA* between $104.0 million and $108.0 million; and

·                  Free Cash Flow* between $7.0 million and $11.0 million.

The company said the following assumptions are built into its fiscal year 2013 outlook:

·                  The above guidance does not include the financial impacts from the potential sale of Maine Energy or the refinancing of the 11.0 percent $180.0 million second lien notes due July 2014.

·                  No material changes in the regional economy from fiscal year 2012.

·                  In the solid waste business, revenue growth of between 2.5 percent and 4.5 percent, with price growth from 1.5 percent to 2.0 percent; volumes and roll-over impact of acquisitions contributing between 1.0 percent and 2.5 percent.

·                  We expect the recent Southbridge and Chemung landfill expansions to add an incremental $3.5 to $4.0 million of Adjusted EBITDA in fiscal year 2013.

·                  In the recycling business, overall revenue declines of between 5.0 percent and 8.5 percent, with price declines on lower commodity pricing and volumes up 1.5 percent to 2.0 percent on continued adoption of Zero-Sort® Recycling.  Our risk mitigation strategies continue to effectively manage commodity pricing risk in the recycling business, and as such we expect Adjusted EBITDA to be down $0.9 million to $1.6 million.

·                  In the major accounts business, overall revenue declines of approximately 10.0 percent, principally due to the anticipated loss of volumes from one brokerage customer.  This customer loss is expected to negatively impact Adjusted EBITDA by approximately $0.4 million.

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·                  No acquisitions beyond the above-mentioned roll-over impact of the acquisitions completed during fiscal year 2012 are included.

*Non-GAAP Financial Measures

In addition to disclosing financial results prepared in accordance with Generally Accepted Accounting Principles in the United States (GAAP), the company also discloses earnings before interest, taxes, depreciation and amortization, adjusted for accretion, depletion of landfill operating lease obligations, gain on sale of assets, development project charge write-off, legal settlement charges, a bargain purchase gain, asset impairment charges, an environmental remediation charge, severance and reorganization charges, as well as a one-time discretionary bonus (Adjusted EBITDA) which is a non-GAAP measure.  The company also discloses earnings before interest, taxes, adjusted for gain on sale of assets, development project charge write-off, legal settlement charges, a bargain purchase gain, asset impairment charges, an environmental remediation charge, severance and reorganization charges, as well as a one-time discretionary bonus (Adjusted Operating Income) which is a non-GAAP measure.  The company also discloses Free Cash Flow, which is defined as net cash provided by operating activities, less capital expenditures attributable to growth and maintenance (excluding acquisition related capital), less payments on landfill operating leases, plus contributions from non-controlling interest holder, which is a non-GAAP measure.  Adjusted EBITDA is reconciled to net income (loss), while Free Cash Flow is reconciled to net cash provided by operating activities.

The company presents Adjusted EBITDA, Adjusted Operating Income, and Free Cash Flow because it considers them important supplemental measures of its performance and believes they are frequently used by securities analysts, investors and other interested parties in the evaluation of the company’s results.  Management uses these non-GAAP measures to further understand the company’s “core operating performance.” The company believes its “core operating performance” represents its on-going performance in the ordinary course of operations. The company believes that providing Adjusted EBITDA, Adjusted Operating Income, and Free Cash Flow to investors, in addition to corresponding income statement and cash flow statement measures, affords investors the benefit of viewing its performance using the same financial metrics that the management team uses in making many key decisions and understanding how the core business and its results of operations may look in the future. The company further believes that providing this information allows its investors greater transparency and a better understanding of its core financial performance. In addition, the instruments governing the company’s indebtedness use EBITDA (with additional adjustments) to measure its compliance with covenants such as interest coverage, leverage and debt incurrence.

Non-GAAP financial measures are not in accordance with or an alternative for GAAP.  Adjusted EBITDA, Adjusted Operating Income, and Free Cash Flow should not be considered in isolation from or as a substitute for financial information presented in accordance with GAAP, and may be different from Adjusted EBITDA, Adjusted Operating Income, or Free Cash Flow presented by other companies.

About Casella Waste Systems, Inc.

Casella Waste Systems, Inc., headquartered in Rutland, Vermont, provides solid waste management services consisting of collection, transfer, disposal, and recycling services in the northeastern United States.  For further information, investors contact Ned Coletta, vice president of finance and investor relations at (802) 772-2239, or Ed Johnson, chief financial officer at (802) 772-2241, media contact Joseph Fusco, vice president at (802) 772-2247, or visit the company’s website at http://www.casella.com.

Conference call to discuss quarter

The Company will host a conference call to discuss these results on Thursday, June 28, 2012 at 10:00 a.m. ET.  Individuals interested in participating in the call should dial (877) 548-9590 or (720) 545-0037 at least 10 minutes before start time.  The call will also be webcast; to listen, participants should visit Casella Waste Systems’ website at http://ir.casella.com and follow the appropriate link to the webcast.  A replay of the call will be available on the company’s website, or by calling (855) 859-2056 or (404) 537-3406 (Conference ID 91134901) until 11:59 p.m. ET on Thursday, July 5, 2012.

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Safe Harbor Statement

Certain matters discussed in this press release are “forward-looking statements” intended to 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,” “will,” “would,” “intend,” “estimate,” “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 we operate and management’s beliefs and assumptions. We cannot guarantee that we actually will achieve the plans, intentions, expectations or guidance disclosed in the forward-looking statements made. Such forward-looking statements, and all phases of our 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 our forward-looking statements. Such risks and uncertainties include or relate to, among other things: current economic conditions that have adversely affected and may continue to adversely affect our revenues and our operating margin; we 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 our control; we may be required to incur capital expenditures in excess of our estimates; fluctuations in energy pricing or the commodity pricing of our recyclables may make it more difficult for us to predict our results of operations or meet our estimates; we may incur environmental charges or asset impairments in the future; and we may be unable to sell our waste-to-energy facility and shift waste volumes to other landfill sites. There are a number of other important risks and uncertainties that could cause our 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 our Form 10-K for the year ended April 30, 2011.

We undertake 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.

Investors:

Ned Coletta

Vice President of Finance and Investor Relations

(802) 772-2239

Ed Johnson

Chief Financial Officer

(802) 772-2241

Media:

Joseph Fusco

Vice President

(802) 772-2247

http://www.casella.com

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CASELLA WASTE SYSTEMS, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(In thousands, except amounts per share)

CASELLA WASTE SYSTEMS, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED BALANCE SHEETS

(In thousands)

CASELLA WASTE SYSTEMS, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(In thousands)

CASELLA WASTE SYSTEMS, INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands)

Note 1:     Discontinued Operations

On January 23, 2011, we entered into a purchase and sale agreement and related agreements to sell non-integrated recycling assets and select intellectual property assets to a new company (the “Purchaser”) formed by Pegasus Capital Advisors, L.P. and Intersection LLC for $130,400 in gross proceeds. Pursuant to these agreements, we divested non-integrated recycling assets located outside our core operating regions of New York, Massachusetts, Vermont, New Hampshire, Maine and northern Pennsylvania, including 17 material recovery facilities (“MRFs”), one transfer station and certain related intellectual property assets. Following the transaction, we retained four integrated MRFs located in our core operating regions. As a part of the disposition, we also entered into a ten-year commodities marketing agreement with the Purchaser to market 100% of the tonnage from three of our remaining integrated MRFs.

We completed the transaction on March 1, 2011 for $134,195 in gross cash proceeds. This included an estimated $3,795 working capital and other purchase price adjustment, which was subject to further adjustment, as defined in the purchase and sale agreement. After netting transaction costs and cash taxes payable in conjunction with the divestiture, net cash proceeds amounted to approximately $122,953. We used cash proceeds from the divestiture and borrowings under our subsequently refinanced senior secured revolving credit facility due December 31, 2012 to repay the aggregate balance of our then outstanding senior secured term B loan due April 9, 2014 in full upon completion of the disposition. This resulted in a gain on disposal of discontinued operations (net of tax) of $43,718 in the fourth quarter of fiscal year 2011. The final working capital adjustment, along with additional legal expenses related to the transaction, of $646 was recorded to gain on disposal of discontinued operations (net of tax) in the first quarter of fiscal year 2012. In the second quarter of fiscal year 2012, we recorded an additional working capital adjustment of $79 to gain on disposal of discontinued operations (net of tax), which related to our subsequent collection of receivable balances that were released to us for collection by the Purchaser.

During the third quarter of fiscal year 2011, we also completed the sale of the assets of the Trilogy Glass business for cash proceeds of $1,840. A loss of to $128 (net of tax) was recorded to gain on disposal of discontinued operations in fiscal year 2011.

The operating results of these operations, including those related to prior years, have been reclassified from continuing to discontinued operations in the accompanying consolidated financial statements. Revenues and loss before income taxes attributable to discontinued operations were $62,510 and ($2,258) for the fiscal year ended April 30, 2011.

We have recorded contingent liabilities associated with these divestitures of approximately $325 and $332 at April 30, 2012 and 2011, respectively. We also allocate interest expense to discontinued operations.  We have also eliminated inter-company activity associated with discontinued operations.

Note 2:     Non - GAAP Financial Measures

In addition to disclosing financial results prepared in accordance with Generally Accepted Accounting Principles in the United States (GAAP), we also disclose earnings before interest, taxes, depreciation and amortization, adjusted for accretion, depletion of landfill operating lease obligations, gain on sale of assets, development project charge write-off, legal settlement charges, a bargain purchase gain, asset impairment charges, an environmental remediation charge, severance and reorganization charges, as well as a one-time discretionary bonus (Adjusted EBITDA) which is a non-GAAP measure. We also disclose earnings before interest, taxes, adjusted for gain on sale of assets, development project charge write-off, legal settlement charges, a bargain purchase gain, asset impairment charges, an environmental remediation charge, severance and reorganization charges, as well as a one-time discretionary bonus (Adjusted Operating Income) which is a non-GAAP measure. We also disclose Free Cash Flow, which is defined as net cash provided by operating activities, less capital expenditures attributable to growth and maintenance (excluding acquisition related capital), less payments on landfill operating leases, plus contributions from non-controlling interest holder, which is a non-GAAP measure. Adjusted EBITDA is reconciled to net income (loss), while Free Cash Flow is reconciled to net cash provided by operating activities.

We present Adjusted EBITDA, Adjusted Operating Income, and Free Cash Flow because we consider them important supplemental measures of our performance and believe they are frequently used by securities analysts, investors and other interested parties in the evaluation of our results. We use these non-GAAP measures to further understand our “core operating performance.” We believe our “core operating performance” represents our on-going performance in the ordinary course of operations. We believe that providing Adjusted EBITDA, Adjusted Operating Income, and Free Cash Flow to investors, in addition to corresponding income statement and cash flow statement measures, affords investors the benefit of viewing our performance using the same financial metrics that our management team uses in making many key decisions and understanding how the core business and our results of operations may look in the future. We further believe that providing this information allows our investors greater transparency and a better understanding of our core financial performance. In addition, the instruments governing our indebtedness use EBITDA (with additional adjustments) to measure our compliance with covenants such as interest coverage, leverage and debt incurrence.

Non-GAAP financial measures are not in accordance with or an alternative for GAAP. Adjusted EBITDA, Adjusted Operating Income, and Free Cash Flow should not be considered in isolation from or as a substitute for financial information presented in accordance with GAAP, and may be different from Adjusted EBITDA, Adjusted Operating Income, or Free Cash Flow presented by other companies.

Following is a reconciliation of Adjusted EBITDA and Adjusted Operating Income to Net (Loss) Income:

Following is a reconciliation of Free Cash Flow to Net Cash Provided by Operating Activities:

CASELLA WASTE SYSTEMS, INC. AND SUBSIDIARIES

SUPPLEMENTAL DATA TABLES

(Unaudited)

(In thousands)

Amounts of our total revenues attributable to services provided for the three and twelve months ended April 30, 2012 and 2011 are as follows:

Components of revenue growth for the three months ended April 30, 2012 compared to the three months ended April 30, 2011 are as follows:

Solid Waste Internalization Rates by Region:

CASELLA WASTE SYSTEMS, INC. AND SUBSIDIARIES

SUPPLEMENTAL DATA TABLES

(Unaudited)

(In thousands)

GreenFiber Financial Statistics - as reported (1):

(1)  We hold a 50% interest in US Green Fiber, LLC (“GreenFiber”), a joint venture that manufactures, markets and sells cellulose insulation made from recycled fiber.

Components of Growth and Maintenance Capital Expenditures (1):

(1) Our capital expenditures are broadly defined as pertaining to either growth, maintenance or acquisition activities. Growth capital expenditures are defined as costs related to development of new airspace, permit expansions, and new recycling contracts along with incremental costs of equipment and infrastructure added to further such activities.  Growth capital expenditures include the cost of equipment added directly as a result of organic business growth as well as expenditures associated with increasing infrastructure to increase throughput at transfer stations and recycling facilities. Maintenance capital expenditures are defined as landfill cell construction costs not related to expansion airspace, costs for normal permit renewals, and replacement costs for equipment due to age or obsolescence. Acquisition capital expenditures are defined as costs of equipment added directly as a result of new business growth related to an acquisition.