LIMITED POWER OF ATTORNEY
KNOW ALL MEN BY THESE PRESENTS, that I, Nelson Obus, the
undersigned, of 291 Russell Rd., Princeton, New Jersey 08540 hereby
make, constitute and appoint Steven F. Crooke or, in the
alternative, Jerry W. Fanska, each of Layne Christensen Company,
1900 Shawnee Mission Parkway, Mission Woods, Kansas, my true
and lawful attorney-in-fact for me and in my name, place, and
stead giving severally unto said Mr. Crooke and Mr. Fanska full
power to execute and to file with the Securities and Exchange
Commission ("SEC") as my attorney-in-fact, any and all SEC
Forms 3, 4, 5 or 144 required to be filed under the Securities Act of
1933 or the Securities Exchange Act of 1934, each as amended, in
connection with my beneficial ownership of equity securities of
Layne Christensen Company.
The rights, powers, and authority of said attorney-in-fact herein
granted shall commence and be in full force and effect as of the
date hereof, and such rights, powers, and authority shall remain in
full force and effect for as long as the undersigned is subject to the
reporting requirements of Section 16 or until revoked in writing by
the undersigned, whichever first occurs.
IN WITNESS WHEREOF, the undersigned has executed this
Limited Power of Attorney as of this 21st day of
April, 2004.

/s/ Nelson Obus
(Signature)

State of New York
ss.
County of New York

On this 21st day of April, 2004, before me a notary
public in and for said state, personally appeared Nelson Obus, to
me personally known, who being duly sworn, acknowledged that he had
executed the foregoing instrument for purposes therein mentioned and
set forth.

[SEAL]
/s/ Barbara A. Raskob
Notary Public

My Commission Expires:
June 29, 2007
(Date)