ABSTRACT
Aquifer storage and recovery (ASR) is a relatively new concept in management of both potable and nonpotable water supply systems. By effective use of the ASR concept, smaller water treatment facilities can be constructed and can be operated closer to average day demand. ASR technology can be used to increase the efficiency of many different membrane treatment systems. A major consideration in the design of an ASR system is the most effective location of the injection wells in relationship to the water treatment plant and the distribution system. The quality of both the injection water and the native water in the aquifer must be assessed to determine chemical compatibility. The test program must be designed to obtain accurate measurements of the hydraulic parameters, transmissivity, storativity, and leakance and to measure the variation of water quality with depth in the zone chosen for use.
