(1) The groundwater moved through the aquifer which was close to the Carrigower River, a designated Special Area of Conservation.(2) Therefore, the results of a wet base or a dry base are the same if the upper part of the aquifer is frozen: it is not possible to transmit water from the glacier into the rock mass.(3) Groundwater comes from an aquifer , an underground zone of saturated sand, gravel, or rock that yields significant quantities of water.(4) A less pleasant possibility was that we had intercepted an aquifer .(5) If dry-based ice covered the area, the aquifer would have become inactive.(6) Likewise, most of the water supply for the town of Sonoyta, as well as the nearby border town of Lukeville, comes from the groundwater aquifer .(7) The earth could not absorb the rainwater; as a result groundwater aquifers could not recharge.(8) Groundwater is found at varying depths underneath the earth's surface, in permeable rocks known as aquifers which are saturated by the infiltration of rainfall.(9) Because of the long residence times typical of most bodies of groundwater, contaminated aquifers are not readily restored by natural processes.(10) Percolation pits dug along the lengths of the bunds would facilitate recharge of groundwater aquifers .(11) There are over 100 surface pumps that remove water from aquifers , geologic units where water is stored between grains of sand or in rock fissures.(12) Such an effect has been enhanced by the extended, often illegal, overpumping of the deltaic aquifers .(13) The artificial recharge of aquifers could help to counter overexploitation of groundwater resources.(14) But the complex geology overlying the mountain aquifers continues to challenge researchers.(15) Today water-resource managers must increasingly consider how withdrawals affect the amount of water flowing in and out of aquifers .(16) These saline waters get pulled into local aquifers as wells and groundwater supplies are overdrawn.
