Abstract.A preliminary survey of ground‐water laws in 24 States reveals a variety of control measures being utilized to manage the nation's ground‐water resources. One important technique is the establishment of ground‐water quality standards. Four States and one territory presently have ground‐water quality standards in effect. Other control measures include well permits, limits on use, designation of critical areas, and licensing of well drillers.New comprehensive ground‐water legislation is being considered in western States, particularly California and Arizona. In California, the emphasis is on continued local control. In Arizona, a new ground‐water law requires strict mandatory conservation for the entire State. The Arizona Ground Water Management Act, if successful, may be a model law for other States
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