Segment Information (Tables)

12 Months Ended

Dec. 31, 2021

Components of Segment Revenues and Adjusted EBITDA

Segment revenues and Adjusted EBITDA for the years ended December 31, consisted of the following:

	2021					2020					2019
	Segment Revenues		Segment Adjusted EBITDA			Segment Revenues		Segment Adjusted EBITDA			Segment Revenues		Segment Adjusted EBITDA
Assessment, Permitting and Response	$	261,865	$	57,128		$	98,521	$	24,208		$	21,071	$	7,572
Measurement and Analysis		153,208		31,270			151,557		39,386			135,531		27,828
Remediation and Reuse		131,340		19,326			78,165		8,938			77,252		9,736
Total Operating Segments		546,413		107,724			328,243		72,532			233,854		45,136
Corporate and Other		—		(30,082	)		—		(18,056	)		—		(13,641	)
Total	$	546,413	$	77,642		$	328,243	$	54,476		$	233,854	$	31,495

Reconciliation of Segment Measure to Loss Before Benefit from Income Taxes

Presented below is a reconciliation of the Company’s segment measure to loss before benefit from income taxes for the years ended December 31:

	2021			2020			2019
Total	$	77,642		$	54,476		$	31,495
Interest expense, net		(11,615	)		(13,819	)		(6,755	)
Income tax (expense) benefit		(1,709	)		(851	)		3,121
Depreciation and amortization		(44,810	)		(37,274	)		(27,705	)
Stock-based compensation		(10,321	)		(4,849	)		(4,345	)
Start-up losses and investment in new services		(4,407	)		(2,182	)		(1,874	)
Acquisition costs		(2,088	)		(4,344	)		(3,474	)
Fair value changes in financial instruments		(2,195	)		(20,319	)		(11,160	)
Fair value changes in business acquisitions contingent consideration		(24,372	)		(12,942	)		(1,392	)
Short term purchase accounting fair value adjustment to deferred revenue		—			(243	)		(858	)
Public offering expense		—			(7,657	)		(610	)
Discontinued services ⁽ⁱ⁾		—			(5,662	)		—
Expenses related to financing transactions		(50	)		(378	)		—
Other losses or expenses		(1,400	)		(1,905	)		—
Net loss	$	(25,325	)	$	(57,949	)	$	(23,557	)

(i)

During the first quarter of 2020, the Company determined to reduce the footprint of its environmental lab in Berkeley, California, and to exit its non-specialized municipal water engineering service line and its food waste biogas engineering service line. As a part of discontinuing service lines, the Company made the decision to book an additional bad debt reserve related to the uncertainty around the ability to collect on receivables related to these service lines (Note 4). It was determined that the discontinuation of these service lines did not represent a strategic shift that had (or will have) a major effect on the Company’s operations and financial results therefore did not meet the requirements to be classified as discontinued operations.