<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>ex24zay.txt
<TEXT>
POWER OF ATTORNEY


                      I, Richard H. Zay, hereby authorize and
designate each of Heidi M. Wilson, Kristin A. Stokes, Amy Jensen,
Amy C. Seidel, Nicole Kroetsch, and Julie Regnier, signing singly,
as my true and lawful attorney-in-fact to:

             (1)    execute for and on my behalf, in my capacity
as an officer and/or director of Tennant Company (the "Company"),
the Form ID and Forms 3, 4 and 5 in accordance with Section 16(a)
of the Securities Exchange Act of 1934 (the "Exchange Act") and
the rules and regulations promulgated thereunder;

             (2)    do and perform any and all acts for and on my
behalf which may be necessary or desirable to complete and execute
any such Form ID and Form 3, 4 or 5 and timely file such form with
the Securities and Exchange Commission, any stock exchange or
similar authority, and the National Association of Securities
Dealers; and

             (3)    take any other action of any type whatsoever
in connection with the foregoing which, in the opinion of such
attorney-in-fact, may be to my benefit, in my best interest, or
legally required of me, it being understood that the statements
executed by such attorney-in-fact on my behalf pursuant to this
Power of Attorney shall be in such form and shall contain such
terms and conditions as such attorney-in-fact may approve in such
attorney-in-fact's discretion.

                      I hereby further grant to each such
attorney-in-fact full power and authority to do and perform any
and every act and thing whatsoever requisite, necessary, or proper
to be done in the exercise of any of the rights and powers herein
granted, as fully to all intents and purposes as I might or could
do if personally present, with full power of substitutes or
revocation, hereby ratifying and confirming all that such
attorney-in-fact, or such attorney-in-fact's substitute or
substitutes, shall lawfully do or cause to be done by virtue of
this Power of Attorney and the rights and powers herein granted.
I hereby acknowledge that the foregoing attorneys-in-fact, in
serving in such capacity at my request, are not assuming, nor is
the Company assuming, any of my responsibilities to comply with
Section 16 of the Exchange Act.

                      This Power of Attorney shall remain in full
force and effect until I am no longer required to file Forms 3, 4
and 5 with respect to my holdings of and transactions in
securities issued by the Company, unless earlier revoked by me in
a signed writing delivered to the foregoing attorneys-in-fact.

                      IN WITNESS WHEREOF, I have caused this Power
of Attorney to be duly executed as of this 12th day of June, 2010.



/s/ Richard H. Zay

Richard H. Zay



9654
</TEXT>
</DOCUMENT>
