Domestic use wells
Figure 8-2 shows the distribution of domestic-use permits in the WBRB. Most domestic wells are in rural areas, including areas where groundwater is the sole reliable source of water. Wells are located mostly along rivers and other surface drainages within the interior basins, completed primarily in Quaternary and Tertiary geologic units. A smaller number of domestic-use permits are associated with population centers. The depth vs. yield tables on Figure 8-2 show that by far most of groundwater permits are for depths of 500 feet or less and yields to 25 gpm for both total permits and permits issued since 2000. More than one-third of domestic-use permits are coded or have no recorded depth; a much smaller number (43) have coded yield information. Figure 8-2 also shows that domestic-use wells have been mostly permitted at relatively shallow depth within virtually all hydrogeologic units (including confining units) throughout the WBRB, illustrating that useful quantities of relatively shallow groundwater can be found at many locations and confirming that recharge is widespread within the WBRB.
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