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EXHIBIT 12.1

Ratio of Earnings to Fixed Charges

CLEAN HARBORS, INC. AND SUBSIDIARIES

		For the Year Ended December 31,
		2007			2006			2005			2004			(Restated) 2003
		(Dollars in thousands)
Income (loss) from operations before income taxes		$	72,238		$	52,953		$	29,116		$	8,643		$	(12,212	)
Add (subtract):
	Capitalized interest		(1,179	)		(682	)		(91	)		(1,922	)		—
	Amortization of capitalized interest		435			294			246			24			—
	Fixed charges (see calculation below)		22,897			20,259			26,803			31,985			29,496
Income (loss) from operations before income taxes as adjusted		$	94,391		$	72,824		$	56,074		$	38,730		$	17,284
Fixed charges:
	Interest expense, net	$	13,157		$	12,447		$	22,754		$	22,297		$	23,724
	Interest income		4,023			3,589			1,403			692			1,003
	Capitalized interest		1,179			682			91			1,922			—
	Amortization of capitalized interest		(435	)		(294	)		(246	)		(24	)		—
	Preferred stock dividend		332			314			317			5,684			3,063
	Portion of the operating lease rental expense deemed to be representative of the interest factor		4,641			3,521			2,484			1,414			1,706
Fixed charges		$	22,897		$	20,259		$	26,803		$	31,985		$	29,496
Ratio of earnings to fixed charges(1)			4.1	x		3.6	x		2.1	x		1.2	x		0.6	x

(1)

During the year ended December 31, 2003, earnings were not sufficient to cover fixed charges and the deficiency for the year was $12.2 million.

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EXHIBIT 12.1