0001000096-06-000172 DEFA14A 1 20060419 20060419 20060419 ADA-ES INC 0001223112 2890 841457335 CO 1231 DEFA14A 34 000-50216 06766204 8100 SOUTHPARK WAY B LITTLETON CO 80120 DEFA14A 1 adaproxyamendment.txt AMENDED DEFINITIVE PROXY