Baton Rouge Disposal S-4 Registration of securities issued in business combination transactions

EXHIBIT 12.1

Ratio of Earnings to Fixed Charges

CLEAN HARBORS, INC.

Offer to Exchange 75/8% Senior Secured Notes due 2016

Registered under the Securities Act of 1933 for

All Outstanding Unregistered 75/8% Senior Secured Notes due 2016

	For the Three Months Ended March 31,						For the Year Ended December 31,
	2011			2010			2010			2009			2008			2007			2006
	(Dollars in thousands)
Income from operations before income taxes	$	36,163		$	17,137		$	184,477		$	61,472		$	93,977		$	72,238		$	52,953
Add (Subtract):
Capitalized interest	(272		)	(81		)	(541		)	(236		)	(157		)	(1,179		)	(682		)
Amortization of capitalized interest	182			167			616			567			541			435			294
Fixed charges (see calculation below)	11,410			14,244			35,620			23,511			18,736			22,897			20,259
Income from operations before income taxes as adjusted	$	47,483		$	31,467		$	220,172		$	85,314		$	113,098		$	94,391		$	72,824
Fixed charges:
Interest expense, net	$	6,478		$	6,928		$	27,936		$	15,999		$	8,403		$	13,157		$	12,447
Interest income	244			102			874			825			623			4,023			3,589
Capitalized interest	272			81			541			236			157			1,179			682
Amortization of capitalized interest	(182		)	(167		)	(616		)	(567		)	(541		)	(435		)	(294		)
Preferred stock dividend	—			—			—			—			—			332			314
Portion of operating lease rental expenses deemed to be representative of the interest factor	4,598			7,300			6,885			7,018			5,624			4,641			3,521
Fixed charges	$	11,410		$	14,244		$	35,620		$	23,511		$	18,736		$	22,897		$	20,259
Ratio of earnings to fixed charges	4.2x			2.2x			6.2x			3.6x			6.0x			4.1x			3.6x