Quarterly report pursuant to Section 13 or 15(d)

4. Property And Equipment, Net

4. Property And Equipment, Net

3 Months Ended

Mar. 31, 2017

Property and equipment at March 31, 2017 and December 31, 2016 are as follows:

	March 31,		December 31,
	2017		2016

Equipment & Installation	$	1,936,534	$	1,823,594
Trucking equipment		1,074,505		926,614
Computer equipment and software		113,538		111,518
Office equipment		27,155		27,155
Total equipment		3,151,732		2,888,881

Less: accumulated depreciation		1,600,197		1,420,755
Construction in process		1,387,420		1,101,228
Property and equipment, net	$	2,938,955	$	2,569,354

The Company uses the straight-line method of depreciation over 2 to 5 years. During the three months ended March 31, 2017 and 2016 depreciation expense charged to operations was $179,442 and $81,537, respectively.