TANKNOLOGY ENVIRONMENTAL, INC. AND SUBSIDIARIES



                                   EXHIBIT 28

                                  Press Release



                                    Page 75



For Immediate Release:


             "TANKNOLOGY COMPLETES SALE OF TANK TESTING BUSINESSES"


     Houston, Texas (October 25, 1996)--Tanknology Environmental,  Inc. (NASDAQ:
"TANK")  today   announced  that  it  has  completed  the  sale  of  its  three
subsidiaries  involved in  underground  storage tank services to NDE  Environmen
tal,  Inc.  The sale price  consisted  of a cash  payment of  approximately  $12
million.

     "This sale allows Tanknology to monetize its investment in the tank testing
business,"  stated Donald R. Campbell,  President.  "After the sale, the company
has cash and  marketable  securities  of  approximately  $30 million  ($2.11 per
share) and  shareholder's  equity in excess of $41 million  ($2.90 per  share),"
continued Mr. Campbell.

     Tanknology's continuing operations consist of Energy Recovery Resources, a
wastewater and waste oil treatment company located in Charlotte, North Carolina.
The Company also owns Engineered Systems, Inc., ("ESI") a provider of fuel
system products based in Tempe, Arizona. The Company treats its investment in
ESI as a discontinued operation.

     Tanknology Environmental,  Inc. is headquartered in Houston, Texas, and its
shares are traded on NASDAQ'S  National  Market  System under the ticker  symbol
"TANK."