Aquifer recharge wells and aquifer storage and recovery (ASR) wells are employed for many purposes, including ground water resource management, water storage and recovery, prevention of salt water intrusion into fresh water aquifers, and subsidence contro
Injectate in aquifer recharge and ASR wells is required by most regulatory agencies to meet primary and secondary drinking water standards in order to prevent degradation of ambient ground water quality. However, aquifer recharge and ASR wells are not specifically defined by federal regulations and are not subject to any specific regulations tailored just for them, but are subject to the UIC regulations that exist for all Class V wells (The Class V Underground Injection Control Study, Volume 21: Aquifer Recharge and Aquifer Storage and Recovery Wells, EPA816-R-99-014u, September 1999).
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