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GUARANTOR AND NON-GUARANTOR SUBSIDIARIES FINANCIAL INFORMATION (Details) (USD $)	1 Months Ended			1 Months Ended
	Mar. 31, 2011 Senior secured notes	Jun. 30, 2011 Senior secured notes	Dec. 31, 2010 Senior secured notes	Mar. 31, 2011 Senior secured notes Clean Harbors, Inc.	Jun. 30, 2011 Senior secured notes Clean Harbors, Inc.	Dec. 31, 2010 Senior secured notes Clean Harbors, Inc.	Aug. 14, 2009 Clean Harbors, Inc.
Financing arrangements
Senior secured notes, at 7.625%, due on August 15, 2016		$ 520,000,000	$ 270,000,000		$ 520,000,000	$ 270,000,000	$ 300,000,000
Senior secured notes, interest rate (as a percent)		7.625%	7.625%			7.625%
Senior secured notes issued, aggregate principal amount	$ 250,000,000			$ 250,000,000

Including current and noncurrent portions, aggregate carrying amount of long-term borrowings as of the balance sheet date before deducting unamortized discount or premiums (if any). May include notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, which had initial maturities beyond one year or beyond the normal operating cycle, if longer.

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