WAC 173-124-050
Subarea zone definition. (1) "Quincy
unconsolidated zone" shall mean those rock units in the Quincy
groundwater subarea lying between ground surface and the top
of the uppermost basalt flow.
(2) "Quincy basalt zone" shall mean those rock units in
the Quincy groundwater subarea consisting of basalt flows of
tertiary age.
[Order 72-24, § 173-124-050, filed 1/15/73.]