Aquifer Storage Recovery — An Oasis for a Thirsty World
Proven underground water storage solutions trusted by utilities, engineers, and governments across 10+ countries. Since coining the term in 1980, David Pyne has led the science of Aquifer Storage Recovery.
Aquifer Storage Recovery is a proven method for solving water security challenges — from seasonal shortages to emergency reserves and drought resilience.
The basic concept of storing water underground dates back centuries, but modern ASR uses engineered wells, rigorous water quality management, and advanced hydrogeological science to achieve reliable, large-scale storage. With wells ranging from 60 to 800 metres deep, ASR can address virtually any water supply challenge.
Learn How ASR Works"The storage of water in a well in a suitable aquifer during times when the water is available, and recovery of the stored water from the same well when needed."
First defined in 1980 by David Pyne, ASR has grown from a single concept into a globally proven water management practice, with hundreds — and likely thousands — of ASR wells now operating across many countries worldwide.
During wet seasons, low-demand periods, or times of peak treatment capacity, surplus treated water is available for storage.
Water is injected through an ASR well into a suitable aquifer — a porous underground rock layer — where it is stored safely below the surface.
During drought, peak demand, or emergency conditions, the stored water is pumped back up through the same well for treatment and distribution.
From Florida to South Australia, from England to Kuwait — ASR Systems LLC has brought water security solutions to projects across the world.
In 1980, David Pyne coined the term "Aquifer Storage Recovery" and defined the discipline that now supports water security for millions of people worldwide. With 30 years at CH2M HILL leading a team of 60 specialists, and 25+ years at the helm of ASR Systems LLC, David brings unmatched expertise to every engagement.
He is also the author of the internationally recognized Aquifer Storage Recovery book, Second Edition — the definitive 608-page reference for the field.
Senior Engineer — global projects
Formal definition still used globally today
Independent specialist firm
608 pages — the world reference on ASR
ASR Systems LLC has built its reputation over 25+ years through the quality of its work. If you're evaluating ASR, we welcome your enquiry.