0001193125-07-160770 S-8 4 20070724 20070724 20070724 ADA-ES INC 0001223112 2890 841457335 CO 1231 S-8 33 333-144820 07996593 8100 SOUTHPARK WAY B LITTLETON CO 80120 S-8 1 ds8.htm FORM S-8 EX-5.1 2 dex51.htm OPINION OF SCHUCHAT, HARZOG & BRENMAN EX-23.1 3 dex231.htm CONSENT OF HEIN & ASSOCIATES LLP GRAPHIC 4 g28007img001.jpg GRAPHIC