GENERAL	3 Months Ended
Mar. 31, 2013
GENERAL
GENERAL	NOTE 1. GENERAL Basis of Presentation The accompanying unaudited consolidated financial statements include the results of operations, financial position and cash flows of US Ecology, Inc. and its wholly-owned subsidiaries. All significant intercompany balances have been eliminated. Throughout these financial statements words such as “we,” “us,” “our,” “US Ecology” and the “Company” refer to US Ecology, Inc. and its subsidiaries. In the opinion of management, the accompanying unaudited consolidated financial statements include all adjustments necessary to present fairly, in all material respects, the results of the Company for the periods presented. These consolidated financial statements have been prepared by the Company pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States (“GAAP”) have been omitted pursuant to the rules and regulations of the SEC. These consolidated financial statements should be read in conjunction with the consolidated financial statements and accompanying notes included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2012. The results of operations and cash flows for the three months ended March 31, 2013 are not necessarily indicative of results to be expected for the entire fiscal year. The Company’s Consolidated Balance Sheet as of December 31, 2012 has been derived from the Company’s audited Consolidated Balance Sheet as of that date. Use of Estimates The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements, as well as the reported amounts of revenue and expenses during the reporting period. Actual results could differ materially from the estimates and assumptions that we use in the preparation of our financial statements. As it relates to estimates and assumptions in amortization rates and environmental obligations, significant engineering, operations and accounting judgments are required. We review these estimates and assumptions no less than annually. In many circumstances, the ultimate outcome of these estimates and assumptions will not be known for decades into the future. Actual results could differ materially from these estimates and assumptions due to changes in applicable regulations, changes in future operational plans and inherent imprecision associated with estimating environmental impacts far into the future. Financial Instruments Cash on deposit, accounts receivable, short-term borrowings, accounts payable and accrued liabilities as presented in the consolidated financial statements approximate fair value because of the short-term nature of these instruments. The carrying amount of our long-term debt approximates fair value because interest rates are variable and, accordingly, approximate current market rates for instruments with similar risk and maturities. Restricted cash balances represent funds held in third-party managed trust accounts as collateral for our financial assurance obligations for post-closure activities at our non-operating facilities. Restricted cash balances are maintained by third-party trustees and are invested in money market accounts. The balances are adjusted monthly to fair market value based on quoted prices in active markets for identical assets.

NOTE 1. GENERAL

Basis of Presentation

The accompanying unaudited consolidated financial statements include the results of operations, financial position and cash flows of US Ecology, Inc. and its wholly-owned subsidiaries. All significant intercompany balances have been eliminated. Throughout these financial statements words such as “we,” “us,” “our,” “US Ecology” and the “Company” refer to US Ecology, Inc. and its subsidiaries.

In the opinion of management, the accompanying unaudited consolidated financial statements include all adjustments necessary to present fairly, in all material respects, the results of the Company for the periods presented. These consolidated financial statements have been prepared by the Company pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States (“GAAP”) have been omitted pursuant to the rules and regulations of the SEC. These consolidated financial statements should be read in conjunction with the consolidated financial statements and accompanying notes included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2012. The results of operations and cash flows for the three months ended March 31, 2013 are not necessarily indicative of results to be expected for the entire fiscal year.

The Company’s Consolidated Balance Sheet as of December 31, 2012 has been derived from the Company’s audited Consolidated Balance Sheet as of that date.

Use of Estimates

The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements, as well as the reported amounts of revenue and expenses during the reporting period. Actual results could differ materially from the estimates and assumptions that we use in the preparation of our financial statements. As it relates to estimates and assumptions in amortization rates and environmental obligations, significant engineering, operations and accounting judgments are required. We review these estimates and assumptions no less than annually. In many circumstances, the ultimate outcome of these estimates and assumptions will not be known for decades into the future. Actual results could differ materially from these estimates and assumptions due to changes in applicable regulations, changes in future operational plans and inherent imprecision associated with estimating environmental impacts far into the future.

Financial Instruments

Cash on deposit, accounts receivable, short-term borrowings, accounts payable and accrued liabilities as presented in the consolidated financial statements approximate fair value because of the short-term nature of these instruments. The carrying amount of our long-term debt approximates fair value because interest rates are variable and, accordingly, approximate current market rates for instruments with similar risk and maturities. Restricted cash balances represent funds held in third-party managed trust accounts as collateral for our financial assurance obligations for post-closure activities at our non-operating facilities. Restricted cash balances are maintained by third-party trustees and are invested in money market accounts. The balances are adjusted monthly to fair market value based on quoted prices in active markets for identical assets.