Resource Library

This month, the city
received a
demonstration from
Entech Engineering Inc.
, a St. Louis, Mo.,
company that detects
underground pipes and
tanks placed by
utilities. Using a
mixture of infrared
thermography and
ground-penetrating
microwave radar, the
company says it could
survey Austin's
underground tanks by
van or helicopter at
about $500 a tank,
according to President
Gary J. Weil.