Exhibit 99.1

WASTE CONNECTIONS REPORTS FOURTH QUARTER RESULTS AND PROVIDES 2011 OUTLOOK

	•		Q4 revenue of $336.0 million, up 8.4%, and operating margins above expectations
	•		Q4 GAAP EPS of $0.31 and adjusted EPS* of $0.32, up 33.3% over prior year period
	•		Full year revenue of $1.32 billion, up 10.8%, and adjusted EPS* of $1.24, up 26.5%
	•		Full year net cash provided by operating activities of $328.4 million
	•		Full year free cash flow* of $212.5 million, or 16.1% of revenue
	•		Repurchased almost 6% of outstanding common stock during the year
	•		Initiated regular quarterly cash dividend of $0.075 per share
	•		Expects continuing revenue, operating margin and free cash flow growth in 2011

FOLSOM, CA, February 8, 2011 - Waste Connections, Inc. (NYSE: WCN) today announced its results for the fourth quarter of 2010. Revenue totaled $336.0 million, an 8.4% increase over revenue of $309.9 million in the year ago period. Operating income was $67.7 million, or 20.2% of revenue, versus $58.9 million in the fourth quarter of 2009. Net income attributable to Waste Connections in the quarter was $36.1 million, or $0.31 per share on a diluted basis of 115.3 million shares. In the year ago period, the Company reported net income attributable to Waste Connections of $23.3 million, or $0.19 per share on a diluted basis of 119.9 million shares. Shares and per share numbers reflect a three-for-two stock split effective November 12, 2010.

Adjusted net income attributable to Waste Connections in the quarter was $36.7 million*, or $0.32 per share*, adjusting for acquisition-related costs expensed due to the implementation of accounting guidance for business combinations effective January 1, 2009. Adjusted net income attributable to Waste Connections in the prior year period was $29.3 million*, or $0.24 per share*, adjusted primarily for costs associated with the early termination of certain interest rate swaps.

Non-cash costs for equity-based compensation, amortization of acquisition-related intangibles, and amortization of debt discount related to convertible debt instruments in connection with the adoption of accounting guidance on January 1, 2009, were $6.6 million ($4.1 million net of taxes, or approximately $0.04 per share) in the quarter compared to $7.2 million ($4.5 million net of taxes, or approximately $0.04 per share) in the year ago period.

“Increasing disposal volumes, record recycled commodity values, strong core pricing, and a stable cost structure drove results above expectations throughout 2010. Adjusted operating income before depreciation and amortization* as a percentage of revenue expanded more than 100 basis points in 2010 over the prior year, and adjusted EPS* increased 26.5%. We generated record free cash flow during the year, remained disciplined in our acquisition strategy, and returned approximately 6% of market cap to shareholders,” said Ronald J. Mittelstaedt, Chairman and Chief Executive Officer. “We already are well positioned for continuing margin expansion, increasing free cash flow, and double digit growth in earnings per share in 2011; any volume growth from an improving economy, continuation of current recycled commodity prices, or acquisitions completed during the year should provide further upside to our outlook provided below. We also remain committed to repurchasing between four and five percent of outstanding shares during the year and expect to increase the amount of the quarterly cash dividend later in the year.”

Mr. Mittelstaedt added, “Our strategic focus on exclusive and secondary markets, unique corporate culture, and discipline in deploying capital, have produced a differentiated asset mix within our industry and differentiated financial performance.”

For the year ended December 31, 2010, revenue was $1.32 billion, a 10.8% increase over revenue of $1.19 billion in the year ago period. Operating income was $272.4 million, versus $230.7 million for the same period in 2009. Net income attributable to Waste Connections for the year ended December 31, 2010, was $135.1 million, or $1.16 per share on a diluted basis of 116.9 million shares. In the year ago period, the Company reported net income attributable to Waste Connections of $109.8 million, or $0.91 per share on a diluted basis of 120.5 million shares. Adjusted net income attributable to Waste Connections for the year ended December 31, 2010, was $145.0 million*, or $1.24 per share*, compared to $117.9 million*, or $0.98 per share* in the year ago period.

For the year ended December 31, 2010, non-cash costs for equity-based compensation, amortization of acquisition-related intangibles, loss on the early redemption of the 2026 Notes (net of make-whole payment), and amortization of debt discount related to convertible debt instruments in connection with the adoption of accounting guidance on January 1, 2009, were $29.4 million ($18.2 million net of taxes, or approximately $0.16 per share), compared to $27.0 million ($16.9 million net of taxes, or approximately $0.14 per share) in the year ago period.

2011 OUTLOOK

Waste Connections also announced its outlook for 2011, which assumes no change in the current economic environment. The Company’s outlook excludes the impact of any additional acquisitions and expensing of acquisition-related transaction costs. And as noted above, any volume growth from an improving economy or continuation of current recycled commodity prices should provide further upside to this outlook.

The outlook provided below is forward looking, and actual results may differ materially depending on risks and uncertainties detailed at the end of this release and in our periodic SEC filings. Certain components of the outlook for 2011 are subject to quarterly fluctuations.

•

Revenue is estimated to be approximately $1.375 billion.

•

Depreciation expense is estimated to be approximately 10.0% of revenue.

•

Amortization expense for acquisition-related intangibles is estimated to be approximately 1.0% of revenue.

•

Closure and post-closure accretion expense is estimated to be approximately 0.15% of revenue.

•

Operating income is estimated to be approximately 21.5% of revenue.

•

Net interest expense is estimated to be approximately $36.5 million.

•

Effective tax rate is expected to be approximately 39.0%.

•

Net income attributable to noncontrolling interests is estimated to reduce net income by approximately $1.2 million.

•

Net cash provided by operating activities is estimated to be approximately 26.0% of revenue.

•

Capital expenditures are estimated to range between $130 million and $135 million.

CONFERENCE CALL

Waste Connections will be hosting a conference call related to fourth quarter results and 2011 outlook on February 9^th at 8:30 A.M. Eastern Time. The call will be broadcast live over the Internet at www.streetevents.com or through a link on our web site at www.wasteconnections.com. A playback of the call will be available at both of these web sites.

Waste Connections, Inc. is an integrated solid waste services company that provides solid waste collection, transfer, disposal and recycling services in mostly secondary markets in the Western and Southern U.S. The Company serves approximately two million residential, commercial and industrial customers from a network of operations in 27 states. The Company also provides intermodal services for the movement of containers in the Pacific Northwest. Waste Connections, Inc. was founded in September 1997 and is headquartered in Folsom, California.

For more information, visit the Waste Connections web site at www.wasteconnections.com. Copies of financial literature, including this release, are available on the Waste Connections web site or through contacting us directly at (916) 608-8200.

Information Regarding Forward-Looking Statements

Certain statements contained in this release are forward-looking in nature, including statements related to expected share repurchases, dividend payments, recycled commodity prices, expected contribution from closed acquisitions, future acquisition activity, expected margin expansion, free cash flow growth and earnings per share growth, and our 2011 outlook. These statements can be identified by the use of forward-looking terminology such as “believes,” “expects,” “may,” “will,” “should,” or “anticipates,” or the negative thereof or comparable terminology, or by discussions of strategy. Our business and operations are subject to a variety of risks and uncertainties and, consequently, actual results may differ materially from those projected by any forward-looking statements. Factors that could cause actual results to differ from those projected include, but are not limited to, the following: (1) our acquisitions may not be successful, resulting in changes in strategy, operating losses or a loss on sale of the business acquired; (2) a portion of our growth and future financial performance depends on our ability to integrate acquired businesses into our organization and operations; (3) downturns in the worldwide economy adversely affect operating results; (4) our results are vulnerable to economic conditions and seasonal factors affecting the regions in which we operate; (5) we may be subject in the normal course of business to judicial, administrative or other third party proceedings that could interrupt or limit our operations, require expensive remediation, result in adverse judgments, settlements or fines and create negative publicity; (6) we may be unable to compete effectively with larger and better capitalized companies and governmental service providers; (7) we may lose contracts through competitive bidding, early termination or governmental action; (8) price increases may not be adequate to offset the impact of increased costs or may cause us to lose volume; (9) increases in the price of fuel may adversely affect our business and reduce our operating margins; (10) increases in labor and disposal and related transportation costs could impact our financial results; (11) efforts by labor unions could divert management attention and adversely affect operating results; (12) we could face significant withdrawal liability if we withdraw from participation in one or more underfunded multiemployer pension plans in which we participate; (13) increases in insurance costs and the amount that we self-insure for various risks could reduce our operating margins and reported earnings; (14) competition for acquisition candidates, consolidation within the waste industry and economic and market conditions may limit our ability to grow through acquisitions; (15) our indebtedness could adversely affect our financial condition; we may incur substantially more debt in the future; (16) each business that we acquire or have acquired may have liabilities or risks that we fail or are unable to discover, including environmental liabilities; (17) liabilities for environmental damage may adversely affect our financial condition, business and earnings; (18) our accruals for our landfill site closure and post-closure costs may be inadequate; (19) the financial soundness of our customers could affect our business and operating results; (20) we depend significantly on the services of the members of our senior, regional and district management team, and the departure of any of those persons could cause our operating results to suffer; (21) our decentralized decision-making structure could allow local managers to make decisions that adversely affect our operating results; (22) we may incur charges related to capitalized expenditures of landfill development projects, which would decrease our earnings; (23) because we depend on railroads for our intermodal operations, our operating results and financial condition are likely to be adversely affected by any reduction or deterioration in rail service; (24) our financial results are based upon estimates and assumptions that may differ from actual results; (25) the adoption of new accounting standards or interpretations could adversely affect our financial results; (26) our financial and operating performance may be affected by the inability to renew landfill operating permits, obtain new landfills and expand existing ones; (27) future changes in laws or renewed enforcement of laws regulating the flow of solid waste in interstate commerce could adversely affect our operating results; (28) fluctuations in prices for recycled commodities that we sell and rebates we offer to customers may cause our revenues and operating results to decline; (29) extensive and evolving environmental, health, safety and employment laws and regulations may restrict our operations and growth and increase our costs; (30) climate change regulations may adversely affect operating results; (31) extensive regulations that govern the design, operation and closure of landfills may restrict our landfill operations or increase our costs of operating landfills; (32) alternatives to landfill disposal may cause our revenues and operating results to decline; and (33) unusually adverse weather conditions may interfere with our operations, harming our operating results. These risks and uncertainties, as well as others, are discussed in greater detail in our filings with the Securities and Exchange Commission, including our most recent Annual Report on Form 10-K and subsequent Quarterly Reports on Form 10-Q. There may be additional risks of which we are not presently aware or that we currently believe are immaterial which could have an adverse impact on our business. We make no commitment to revise or update any forward-looking statements in order to reflect events or circumstances that may change.

— financial tables attached —

CONTACT:
Worthing Jackman / (916) 608-8266
worthingj@wasteconnections.com

WASTE CONNECTIONS, INC.
CONDENSED CONSOLIDATED STATEMENTS OF INCOME
THREE AND TWELVE MONTHS ENDED DECEMBER 31, 2009 AND 2010
(Unaudited)
(in thousands, except share and per share amounts)

		Three months ended								Twelve months ended
		December 31,								December 31,
		2009				2010				2009				2010
Revenues		$	309,897			$	335,955			$	1,191,393			$	1,319,757
Operating expenses:
Cost of operations			181,584				191,512				692,415				749,487
Selling, general and administrative			33,615				39,395				138,026				149,860
Depreciation			31,670				33,525				117,796				132,874
Amortization of intangibles			3,611				3,782				12,962				14,582
Loss (gain) on disposal of assets			556				(1	)			(481	)			571
Operating income			58,861				67,742				230,675				272,383
Interest expense			(12,344	)			(9,292	)			(49,161	)			(40,134	)
Interest income			139				136				1,413				590
Loss on extinguishment of debt			—				—				—				(10,193	)
Other income (expense), net			(8,607	)			860				(7,551	)			2,830
Income before income tax provision			38,049				59,446				175,376				225,476
Income tax provision			(14,495	)			(23,011	)			(64,565	)			(89,334	)
Net income			23,554				36,435				110,811				136,142
Less: net income attributable to noncontrolling interests			(295	)			(290	)			(986	)			(1,038	)
Net income attributable to Waste Connections		$	23,259			$	36,145			$	109,825			$	135,104
Earnings per common share attributable to Waste Connections’ common stockholders:
Basic		$	0.20			$	0.32			$	0.92			$	1.17
Diluted		$	0.19			$	0.31			$	0.91			$	1.16
Shares used in the per share calculations:
Basic			118,204,728				114,212,664				119,119,601				115,646,173
Diluted			119,928,021				115,327,440				120,506,162				116,894,204
Cash dividends per common share			—			$	0.075				—			$	0.075

WASTE CONNECTIONS, INC.
CONDENSED CONSOLIDATED BALANCE SHEETS
(Unaudited)
(in thousands, except share and per share amounts)

		December 31,				December 31,
		2009				2010
ASSETS
Current assets:
Cash and equivalents		$	9,639			$	9,873
Accounts receivable, net of allowance for doubtful accounts of $4,058 and $5,084 at December 31, 2009 and 2010, respectively			138,972				152,156
Deferred income taxes			17,748				20,130
Prepaid expenses and other current assets			33,495				33,402
Total current assets			199,854				215,561
Property and equipment, net			1,308,392				1,337,476
Goodwill			906,710				927,852
Intangible assets, net			354,303				381,475
Restricted assets			27,377				30,441
Other assets, net			23,812				23,179
		$	2,820,448			$	2,915,984
LIABILITIES AND EQUITY
Current liabilities:
Accounts payable		$	86,669			$	85,252
Book overdraft			12,117				12,396
Accrued liabilities			93,380				99,075
Deferred revenue			50,138				54,157
Current portion of long-term debt and notes payable			2,609				2,657
Total current liabilities			244,913				253,537
Long-term debt and notes payable			867,554				909,978
Other long-term liabilities			45,013				47,637
Deferred income taxes			305,932				334,414
Total liabilities			1,463,412				1,545,566
Commitments and contingencies
Equity:
Preferred stock: $0.01 par value; 7,500,000 shares authorized; none issued and outstanding			—				—
Common stock: $0.01 par value; 150,000,000 shares authorized; 117,898,624 and 113,950,081 shares issued and outstanding at December 31, 2009 and 2010, respectively			786				1,139
Additional paid-in capital			625,173				509,218
Retained earnings			732,738				858,887
Accumulated other comprehensive loss			(4,892	)			(3,095	)
Total Waste Connections’ equity			1,353,805				1,366,149
Noncontrolling interests			3,231				4,269
Total equity			1,357,036				1,370,418
		$	2,820,448			$	2,915,984

WASTE CONNECTIONS, INC.
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
TWELVE MONTHS ENDED DECEMBER 31, 2009 AND 2010
(Unaudited)
(Dollars in thousands)

		Twelve months ended
		December 31,
		2009				2010
Cash flows from operating activities:
Net income		$	110,811			$	136,142
Adjustments to reconcile net income to net cash provided by operating activities:
Loss (gain) on disposal of assets			(481	)			571
Depreciation			117,796				132,874
Amortization of intangibles			12,962				14,582
Deferred income taxes, net of acquisitions			38,224				26,431
Loss on redemption of 2026 Notes, net of make-whole payment			—				2,255
Amortization of debt issuance costs			1,942				1,574
Amortization of debt discount			4,684				1,245
Equity-based compensation			9,336				11,331
Interest income on restricted assets			(488	)			(511	)
Closure and post-closure accretion			2,055				1,766
Excess tax benefit associated with equity-based compensation			(4,054	)			(11,997	)
Net change in operating assets and liabilities, net of acquisitions			10,850				12,133
Net cash provided by operating activities			303,637				328,396
Cash flows from investing activities:
Payments for acquisitions, net of cash acquired			(420,011	)			(81,010	)
Capital expenditures for property and equipment			(128,251	)			(134,829	)
Proceeds from disposal of assets			5,061				6,659
Increase in restricted assets, net of interest income			(3,880	)			(2,552	)
Increase in other assets			(1,146	)			(2,492	)
Net cash used in investing activities			(548,227	)			(214,224	)
Cash flows from financing activities:
Proceeds from long-term debt			426,500				483,253
Principal payments on notes payable and long-term debt			(401,970	)			(467,660	)
Change in book overdraft			7,802				279
Proceeds from option and warrant exercises			15,397				33,074
Excess tax benefit associated with equity-based compensation			4,054				11,997
Payments for repurchase of common stock			(62,624	)			(166,320	)
Payments for cash dividends			—				(8,561	)
Debt issuance costs			(194	)			—
Net cash used in financing activities			(11,035	)			(113,938	)
Net increase (decrease) in cash and equivalents			(255,625	)			234
Cash and equivalents at beginning of period			265,264				9,639
Cash and equivalents at end of period		$	9,639			$	9,873

ADDITIONAL STATISTICS
THREE AND TWELVE MONTHS ENDED DECEMBER 31, 2010
(Dollars in thousands)

Internal Growth: The following table reflects revenue growth for operations owned for at least 12 months:

		Three months ended				Twelve months ended
		December 31, 2010				December 31, 2010
Core Price			2.6	%			2.7	%
Surcharges			0.3	%			0.2	%
Volume			0.9	%			0.0	%
Intermodal, Recycling and Other			2.5	%			2.6	%
Total			6.3	%			5.5	%

Uneliminated Revenue Breakdown:

		Three months ended								Twelve months ended
		December 31, 2010								December 31, 2010
Collection		$	239,213				62.2	%		$	951,327				62.8	%
Disposal and Transfer			115,851				30.1	%			458,241				30.3	%
Intermodal, Recycling and Other			29,469				7.7	%			103,974				6.9	%
Total before inter-company elimination		$	384,533				100.0	%		$	1,513,542				100.0	%
Inter-company elimination		$	(48,578	)						$	(193,785	)
Reported Revenue		$	335,955							$	1,319,757

Days Sales Outstanding for the three months ended December 31, 2010: 42 (27 net of deferred revenue)

Internalization for the three months ended December 31, 2010: 66%

Other Cash Flow Items:

		Three months ended				Twelve months ended
		December 31, 2010				December 31, 2010
Cash Interest Paid		$	14,120			$	39,913
Cash Taxes Paid		$	13,881			$	50,111

Debt to Book Capitalization as of December 31, 2010: 40%

Share Information for the three months ended December 31, 2010:

Basic shares outstanding			114,212,664
Dilutive effect of options and warrants			541,767
Dilutive effect of restricted stock			573,009
Diluted shares outstanding			115,327,440

NON-GAAP RECONCILIATION SCHEDULE
(in thousands)

Reconciliation of Adjusted Operating Income before Depreciation and Amortization:

Adjusted operating income before depreciation and amortization, a non-GAAP financial measure, is provided supplementally because it is widely used by investors as a performance and valuation measure in the solid waste industry. Waste Connections defines adjusted operating income before depreciation and amortization as operating income, plus depreciation and amortization expense, plus closure and post-closure accretion expense, plus or minus any gain or loss on disposal of assets. The Company further adjusts this calculation to exclude the effects of items management believes impact the ability to assess the operating performance of our business. This measure is not a substitute for, and should be used in conjunction with, GAAP financial measures. Management uses adjusted operating income before depreciation and amortization as one of the principal measures to evaluate and monitor the ongoing financial performance of the Company’s operations. Other companies may calculate adjusted operating income before depreciation and amortization differently.

		Three months ended				Three months ended
		December 31, 2009				December 31, 2010
Operating income		$	58,861			$	67,742
Plus: Depreciation and amortization			35,281				37,307
Plus: Closure and post-closure accretion			559				443
Plus/less: Loss (gain) on disposal of assets			556				(1	)
Adjustments:
Plus: Acquisition-related transaction costs (a)			(191	)			904
Plus: Loss on prior corporate office lease (b)			218				—
Adjusted operating income before depreciation and amortization		$	95,284			$	106,395
As % of revenues			30.7	%			31.7	%
		Twelve months ended				Twelve months ended
		December 31, 2009				December 31, 2010
Operating income		$	230,675			$	272,383
Plus: Depreciation and amortization			130,758				147,456
Plus: Closure and post-closure accretion			2,055				1,766
Plus/less: Loss (gain) on disposal of assets			(481	)			571
Adjustments:
Plus: Acquisition-related transaction costs (a)			3,987				2,081
Plus: Loss on prior corporate office lease (b)			1,839				—
Adjusted operating income before depreciation and amortization		$	368,833			$	424,257
As % of revenues			31.0	%			32.1	%

NON-GAAP RECONCILIATION SCHEDULE (continued)
(in thousands, except per share amounts)

Reconciliation of Net Income to Adjusted Net Income and Adjusted Net Income per diluted share:

Adjusted net income and adjusted net income per diluted share, both non-GAAP financial measures, are provided supplementally because they are widely used by investors as a valuation measure in the solid waste industry. The Company provides adjusted net income to exclude the effects of items management believes impact the comparability of operating results between periods. Adjusted net income has limitations due to the fact that it may exclude items that have an impact on the Company’s financial condition and results of operations. Adjusted net income and adjusted net income per diluted share are not a substitute for, and should be used in conjunction with, GAAP financial measures. Management uses adjusted net income and adjusted net income per diluted share as one of the principal measures to evaluate and monitor ongoing financial performance of the Company’s operations. Other companies may calculate adjusted net income and adjusted net income per diluted share differently.

		Three months ended								Twelve months ended
		December 31,								December 31,
		2009				2010				2009				2010
Reported net income attributable to Waste Connections		$	23,259			$	36,145			$	109,825			$	135,104
Adjustments:
Swap termination costs, net of taxes (a)			5,753				—				5,753				—
Loss on extinguishment of debt, net of taxes (b)			—				—				—				6,320
Acquisition-related transaction costs, net of taxes (c)			(176	)			560				2,630				1,290
Loss on prior corporate office lease, net of taxes (d)			136				—				1,144				—
Loss (gain) on disposal of assets, net of taxes (e)			346				—				(299	)			776
Impact of deferred tax adjustment (f)			—				—				(1,142	)			1,547
Adjusted net income attributable to Waste Connections		$	29,318			$	36,705			$	117,911			$	145,037
Diluted earnings per common share attributable to Waste Connections common stockholders:
Reported net income		$	0.19			$	0.31			$	0.91			$	1.16
Adjusted net income		$	0.24			$	0.32			$	0.98			$	1.24

NON-GAAP RECONCILIATION SCHEDULE (continued)
(in thousands)

Reconciliation of Free Cash Flow:

Free cash flow, a non-GAAP financial measure, is provided supplementally because it is widely used by investors as a valuation and liquidity measure in the solid waste industry. Waste Connections defines free cash flow as net cash provided by operating activities, plus proceeds from disposal of assets, plus or minus change in book overdraft, plus excess tax benefit associated with equity-based compensation, less capital expenditures for property and equipment and distributions to noncontrolling interests. This measure is not a substitute for, and should be used in conjunction with, GAAP liquidity or financial measures. Management uses free cash flow as one of the principal measures to evaluate and monitor the ongoing financial performance of the Company’s operations. Other companies may calculate free cash flow differently.

		Three months ended				Three months ended
		December 31, 2009				December 31, 2010
Net cash provided by operating activities		$	61,392			$	86,098
Plus: Change in book overdraft			7,754				653
Plus: Proceeds from disposal of assets			712				874
Plus: Excess tax benefit associated with equity-based compensation			3,358				3,061
Less: Capital expenditures for property and equipment			(43,962	)			(48,708	)
Free cash flow		$	29,254			$	41,978
As % of revenues			9.4	%			12.5	%
		Twelve months ended				Twelve months ended
		December 31, 2009				December 31, 2010
Net cash provided by operating activities		$	303,637			$	328,396
Plus: Change in book overdraft			7,802				279
Plus: Proceeds from disposal of assets			5,061				6,659
Plus: Excess tax benefit associated with equity-based compensation			4,054				11,997
Less: Capital expenditures for property and equipment			(128,251	)			(134,829	)
Free cash flow		$	192,303			$	212,502
As % of revenues			16.1	%			16.1	%