News detail Title

What is Aquifer Storage and Recovery (ASR) and how does it apply to NBU’s water planning strategy?

May 22, 2026

NBU has been researching the use of ASR to augment our current water supply portfolio.  It is a recommended strategy because it does not require additional water rights permits. Water utilities commonly use elevated storage and ground storage tanks; aquifer storage and recovery uses underground storage referred to as aquifer storage and recovery (ASR).  During times of surplus, utilities can store excess water underground in an aquifer for later use when it’s needed.