Quarterly Financial Information-Unaudited (Tables)

12 Months Ended

Oct. 02, 2011

Quarterly Financial Information - Unaudited

Schedule of unaudited quarterly data

		First Quarter		Second Quarter		Third Quarter		Fourth Quarter
		(in thousands, except per share data)
Fiscal Year 2011
Revenue		$	611,124	$	612,566	$	673,792	$	675,662
Operating income			34,325		29,256		39,408		43,433
Net income attributable to Tetra Tech			22,301		17,500		23,839		26,399
Earnings per share attributable to Tetra Tech(1):
	Basic	$	0.36	$	0.28	$	0.38	$	0.42
	Diluted	$	0.36	$	0.28	$	0.38	$	0.42
Weighted-average common shares outstanding:
	Basic		61,665		62,121		62,203		62,310
	Diluted		62,443		62,945		62,934		62,864
Fiscal Year 2010
Revenue		$	541,957	$	469,528	$	562,365	$	627,382
Operating income			31,117		23,527		32,706		37,124
Net income attributable to Tetra Tech			18,709		14,329		20,639		23,142
Earnings per share attributable to Tetra Tech(1):
	Basic	$	0.31	$	0.23	$	0.34	$	0.38
	Diluted	$	0.30	$	0.23	$	0.33	$	0.37
Weighted-average common shares outstanding:
	Basic		61,161		61,511		61,560		61,580
	Diluted		62,089		62,168		62,181		61,999

⁽¹⁾

The sum of the quarterly EPS may not add up to the full-year EPS due to rounding.