Assertion: aquifer's permeability | /r/HasProperty | low
Facets:
value: probably
type: DEGREE
value: in the madison aquifer
type: LOCATION
value: generally
type: DEGREE
Source sentences:
text: Perched groundwater is held up by a perching bed whose permeability is so low that water percolating downward through it is not able to bring water in the underlying unsaturated zone above atmospheric pressure (10 CFR Part 960.2).
text: The lower transmissivity values (less than 50,000 feet squared per day) shown in figure 56 mark places either where the upper confining unit is thick (southern Florida) or where the aquifer system is thin or its porosity and permeability are low, or both (areas near the updip limit of the aquifer system).
text: The primary intergranular permeability of the basement rocks in Ghana is generally low.
text: These aquifers generally have low permeability and low storage.
text: Aquifer permeability and storage is low.
text: Primary permeability probably is low in the Madison aquifer because it is mainly composed of carbonate rocks; however, development of extensive secondary porosity and permeability from numerous fractures and solution openings accounts for the high yields of wells completed in the Madison aquifer in selected areas (Miller, 1976; Kelly and others, 1981; Kyllonen and Peter, 1987; Strobel and others, 1999).