COMMITMENTS AND CONTINGENCIES: (Tables)

3 Months Ended

Mar. 31, 2015

COMMITMENTS AND CONTINGENCIES:

Schedule of environmental capital investments

Environmental capital investments in the three months ended March 31, 2015 and 2014 were as follows (in millions):

	2015		2014
Peruvian operations	$	18.9	$	18.3
Mexican operations	3.2		6.4
	$	22.1	$	24.7