-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 MYfbx6Ff4Oa0Gfl9Q5Dk+IJac9aTl4VaSx216BF8TtQiAsKQpRj2VDaFsRX8UPXf
 6gIjbgEN0KtvBCWeO/8HyA==

<SEC-DOCUMENT>0001214157-05-000001.txt : 20050421
<SEC-HEADER>0001214157-05-000001.hdr.sgml : 20050421
<ACCEPTANCE-DATETIME>20050421093840
ACCESSION NUMBER:		0001214157-05-000001
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20050415
FILED AS OF DATE:		20050421
DATE AS OF CHANGE:		20050421

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ADA-ES INC
		CENTRAL INDEX KEY:			0001223112
		STANDARD INDUSTRIAL CLASSIFICATION:	MISCELLANEOUS CHEMICAL PRODUCTS [2890]
		IRS NUMBER:				841457335
		STATE OF INCORPORATION:			CO
		FISCAL YEAR END:			1231

	MAIL ADDRESS:	
		STREET 1:		8100 SOUTHPARK WAY B
		CITY:			LITTLETON
		STATE:			CO
		ZIP:			80120

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			JOHNSON RONALD B
		CENTRAL INDEX KEY:			0001214157

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-50216
		FILM NUMBER:		05763358

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		3037341727

	MAIL ADDRESS:	
		STREET 1:		8100 SOUTHPARK WAY
		STREET 2:		SUITE B
		CITY:			LITTLETON
		STATE:			CO
		ZIP:			801204525
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
</DOCUMENT>
</SUBMISSION>