Exhibit 23.1
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We hereby consent to the incorporation by reference in the Registration Statements of Waste Connections, Inc. listed below of our report dated March 1, 2013 relating to the financial statements, financial statement schedule and the effectiveness of internal control over financial reporting, which appears in this Form 10-K:
Registration Statement (Form S-8 No. 333-170193) pertaining to the Amended and Restated 2004 Equity Incentive Plan of Waste Connections, Inc.;
Registration Statement (Form S-8 No. 333-153621) pertaining to the Amended and Restated 2004 Equity Incentive Plan of Waste Connections, Inc.;
Registration Statement (Form S-8 No. 333-83172) pertaining to the 2002 Stock Option Plan and 2002 Senior Management Equity Incentive Plan of Waste Connections, Inc.;
Registration Statement (Form S-8 No. 333-90810) pertaining to the 2002 Restricted Stock Plan;
Registration Statement (Form S-8 No. 333-102413) pertaining to the Consultant Incentive Plan;
Registration Statement (Form S-8 No. 333-117764) pertaining to the Amended and Restated 2004 Equity Incentive Plan of Waste Connections, Inc.; and
Registration Statement (Form S-3 No. 333-179724) pertaining to the offer and sale from time to time of debt securities, common stock, preferred stock, warrants, shareholder rights or units.
/s/ PricewaterhouseCoopers LLP
Houston, TX
March 1, 2013