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                                 Exhibit 24 (g)


                               POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS,   that the undersigned hereby constitutes and
appoints Anthony J. Dury, William T.  Campbell and Wilfrid D. Nelson and each
of them, the true and lawful attorney or attorneys-in-fact, with full power of
substitution and resubstitution, for the undersigned and in the undersigned's
name, place and stead, to sign on the undersigned's behalf as a director or
officer or both, as the case may be, of Smith Environmental Technologies
Corporation (the "Company") the Company's Annual Report on Form 10-K for the
fiscal year ended February 28, 1995 and to sign any or all amendments thereto,
and other documents in connection therewith, with the Securities Exchange
Commission pursuant to the Securities Exchange Act of 1934, as amended and the
regulations promulgated thereunder, granting unto said attorney or
attorneys-in-fact, and each of them with or without the others, full power and
authority to do and perform each and every act and thing requisite and
necessary to be done in and about the premises in order to effectuate the same
as fully to all intents and purposes as the undersigned might or could in
person, hereby ratifying and confirming all that said attorney or
attorneys-in-fact, or any of them or their substitute or substitutes, may
lawfully do or cause to be done by virtue hereof.


                                        /s/ Arthur A. Riedel               
                                            ------------------------------
                                            Arthur A. Riedel
                                            ------------------------------
                                            (Name)





Dated:  November 16, 1995