EXHIBIT A
AGREEMENT REGARDING JOINT FILING OF STATEMENT
ON SCHEDULE 13D OR 13G
The undersigned agree to file jointly with the Securities and Exchange
Commission (the "SEC") any and all statements on Schedule 13D or Schedule 13G
(and any amendments or supplements thereto) required under section 13(d) of the
Securities Exchange Act of 1934, as amended, in connection with purchases by the
undersigned of securities of American Ecology Corporation, and any other issuer,
until such time as the undersigned file with the SEC a statement terminating
this Agreement Regarding Joint Filing of Statement on Schedule 13D or 13G. For
that purpose, the undersigned hereby constitute and appoint Xxxxxxxx
Investments, Inc., a Texas corporation, as their true and lawful agent and
attorney-in-fact, with full power and authority for and on behalf of the
undersigned to prepare or cause to be prepared, sign, file with the SEC and
furnish to any other person all certificates, instruments, agreements and
documents necessary to comply with section 13(d) and section 16(a) of the
Securities Exchange Act of 1934, as amended, in connection with said purchases,
and to do and perform every act necessary and proper to be done incident to the
exercise of the foregoing power, as fully as the undersigned might or could do
if personally present, until such time as the undersigned file with the SEC a
statement terminating this Agreement Regarding Joint Filing of Statement on
Schedule 13D or 13G.
Date: May 31, 2001 ECOL PARTNERS II, LTD.
By: Xxxxxxxx Investments, Inc.,
its General Partner
By: /s/ Xxxxx X. Xxxxxxxx, Xx.
----------------------------------
Xxxxx X. Xxxxxxxx, Xx.
President
XXXXXXXX INVESTMENTS, INC.
By: /s/ Xxxxx X. Xxxxxxxx, Xx.
---------------------------------
Xxxxx X. Xxxxxxxx, Xx.
President
/s/ Xxxxx X. Xxxxxxxx, Xx.
-------------------------------------
Xxxxx X. Xxxxxxxx, Xx.
Page 8 of 8
