OPERATING SEGMENTS (Tables)

3 Months Ended

Mar. 31, 2017

OPERATING SEGMENTS

Summary of financial information of our reportable segments

	Three Months Ended March 31, 2017
$s in thousands	Environmental Services		Field & Industrial Services		Corporate		Total
Treatment & Disposal Revenue	$	68,703	$	2,637	$	—	$	71,340
Services Revenue:
Transportation and Logistics (1)	12,600		5,320		—		17,920
Industrial Cleaning (2)	—		4,219		—		4,219
Technical Services (3)	—		15,662		—		15,662
Remediation (4)	—		606		—		606
Other (5)	—		487		—		487
Total Revenue	$	81,303	$	28,931	$	—	$	110,234
Depreciation, amortization and accretion	$	8,790	$	1,458	$	128	$	10,376
Capital expenditures	$	4,214	$	2,038	$	899	$	7,151
Total assets	$	594,310	$	118,995	$	58,421	$	771,726

	Three Months Ended March 31, 2016
$s in thousands	Environmental Services		Field & Industrial Services		Corporate		Total
Treatment & Disposal Revenue	$	66,724	$	2,752	$	—	$	69,476
Services Revenue:
Transportation and Logistics (1)	14,800		5,387		—		20,187
Industrial Cleaning (2)	—		4,271		—		4,271
Technical Services (3)	—		17,605		—		17,605
Remediation (4)	—		838		—		838
Other (5)	—		941		—		941
Total Revenue	$	81,524	$	31,794	$	—	$	113,318
Depreciation, amortization and accretion	$	8,079	$	1,337	$	122	$	9,538
Capital expenditures	$	5,839	$	500	$	880	$	7,219
Total assets	$	586,668	$	120,896	$	60,661	$	768,225

(1) Includes such services as collection, transportation and disposal of non-hazardous and hazardous waste.

(2) Includes such services as industrial cleaning and maintenance for refineries, chemical plants, steel and automotive plants, and refinery services such as tank cleaning and temporary storage.

(3) Includes such services as Total Waste Management (“TWM”) programs, retail services, laboratory packing, less-than-truck-load (“LTL”) service and Household Hazardous Waste (“HHW”) collection.

(4) Includes such services as site assessment, onsite treatment, project management and remedial action planning and execution.

(5) Includes such services as emergency response and marine.

Reconciliation of Net Income to Adjusted EBITDA and adjusted EBITDA by operating segment

	Three Months Ended March 31,
$s in thousands	2017			2016
Net income	$	5,185		$	7,517
Income tax expense	3,079			4,684
Interest expense	4,130			4,559
Interest income	(10		)	(49		)
Foreign currency gain	(88		)	(759		)
Other income	(137		)	(169		)
Depreciation and amortization of plant and equipment	6,633			5,904
Amortization of intangibles	2,670			2,610
Stock-based compensation	918			795
Accretion and non-cash adjustment of closure & post-closure liabilities	1,073			1,024
Adjusted EBITDA	$	23,453		$	26,116

	Three Months Ended March 31,
$s in thousands	2017			2016
Adjusted EBITDA:
Environmental Services	$	31,856		$	33,052
Field & Industrial Services	2,064			3,678
Corporate	(10,467		)	(10,614		)
Total	$	23,453		$	26,116

Summary of revenues by geographic location

	Three Months Ended March 31,
$s in thousands	2017		2016
United States	$	96,192	$	103,191
Canada	14,042		10,127
Total revenue	$	110,234	$	113,318

Schedule of long-lived assets by geographic location

	March 31,		December 31,
$s in thousands	2017		2016
United States	$	402,668	405,767
Canada	54,997		54,826
Total long-lived assets	$	457,665	$	460,593