Ratings of these structures and their environment are empirically weighted and summed in the DRASTIC (“drastic”) method of assessing these structures’ vulnerability. When a filter pack or developed zone causes the double straight line effect, analysis of these structures ignores the first line and applies the Bouwer and Rice method or the Hvorslev method to the second line. Permeable reactive barriers are inserted into these structures to intercept plumes. Borehole EM (“E-M”) conductivity logs of these structures track wedge intrusion. Slug tests of these structures use the gradient of the piezometric head to estimate properties like storativity. These structures are less vulnerable to contamination when they are confined, like the Floridan one. In the hydrological cycle, these structures are recharged by water moving through the unsaturated zone. For 10 points, name these permeable rock layers that store groundwater. ■END■
ANSWER: aquifers [accept confined aquifers or unconfined aquifers or perched aquifers; accept groundwater basins; accept Floridan aquifer; prompt on basins; reject “wells” or “drainage basins”]
<Other Science>
= Average correct buzz position