Undeveloped properties of one gross acre or more in size and
which are located northerly of the Whitewater River Channel shall,
upon development, provide sufficient on-site stormwater retention
for the volume of runoff resulting from a one-hundred-year storm with
a time duration which generates the maximum stormwater volume. Stormwater
runoff and volume calculation, retention location and method of storage
shall be performed to the satisfaction of the city engineer.
(Ord. 283 § 1, 1984; Ord. 422 § 1, 1988)