Sun, R.J.Johnston, R.H.2010-02-152010-02-151994http://hdl.handle.net/1969.3/25720126 pgs.Groundwater is one of the nation's most important natural resources. Therefore, groundwater quantity and quality are of importance. This report summarizes the status, description, and findings of each of the 25 major groundwater systems included in the Regional Aquifer-System Analysis (RASA) study which was initiated in 1978. Since that time, analyses on 18 systems have been completed.groundwaterwater levelswater qualityaquiferswater resourceshydrologyBook