Attendees at ISMAR10, Madrid, May 2019 –  the latest triennial symposium of IAH-MAR, UNESCO and ASCE

Welcome to the website of the International Association of Hydrogeologists Commission on Managing Aquifer Recharge (IAH-MAR). Here you can discover what our working groups are doing and contribute to their current projects, you can download resources on MAR, connect with people, get information on symposia coming up, and join our email list to stay informed of latest news. We also have sister sites in Spanish and Chinese.

Managed Aquifer Recharge

Managed aquifer recharge, also called groundwater replenishment, water banking and artificial recharge, is the purposeful recharge of water to aquifers for subsequent recovery or environmental benefit.  It embraces methods such as riverbank filtration, stream bed weirs, infiltration ponds and injection wells, and uses natural water sources and appropriately treated urban stormwater, sewage and other waste waters to increase groundwater storage, protect and improve water quality,and secure drought and emergency supplies. Its growing scientific base supports its rapidly increasing use as a vital management tool in the sustainable use of the world’s water resources.

Latest News

BSMAR17 Phoenix/Tempe, Arizona USA, April 1-3, 2020 

RESILIENCE THROUGH RECHARGE AND RECOVERY, the 17th Biennial Symposium on Managed Aquifer Recharge (BSMAR 17), will be held at the DoubleTree by Hilton – Phoenix/Tempe, April 1-3, 2020. This symposium will feature numerous oral presentations, poster sessions, optional workshops, field trips and an awards luncheon. Visit the BSMAR 17 website for more information. Call for ABSTRACTS is out now and closes October 1.  See the Abstracts section of  www.bsmar.site. Questions or offers to help? Contact Mike Hulst at Mike.Hulst@nv5.com

ISMAR11,  Long Beach, California, April 11 -15, 2022 – A key to sustainability

Announced at ISMAR10, the next ISMAR will be hosted by California Groundwater Resources Association, Arizona Hydrological Society and Orange County Water District.  See the ISMAR11 web site for more information as it unfolds. Chair is Adam Hutchinson (OCWD), and co-chair is Doug Bartlett, (Clear Creek Associates, AZ). Committee members include Sarah Erck, Jim Strandberg, and Robert Bower.

This is a return to near where the first ISMAR began in Anaheim in 1988.

If you’d like to host ISMAR12 in 2025 please discuss with co-chairs of IAH-MAR by May 2021.



ISMAR10  Madrid 20-24 May 2019

A record 250 abstracts were received. Now there are a flurry of outputs from the symposium including web downloadable poster papers,videos of some presentations, available from the ISMAR10 web site along with information on the Proceedings when published. Papers are now populating the open access J Water special issue on Managed Aquifer Recharge for Water Resilience arising from a selection of extended ISMAR10 papers.


UNESCO MAR Case Studies Publication

UNESCO is in the process of has commissioning IAH and GRIPP to produce a set of exemplary MAR case studies that describe project initiation and development, evidence of sustainability, and economic evaluation and give a synthesis of each of these elements.  This is targeted at water resources managers with a need to understand how MAR can be adapted to contribute to their needs.   In January 2019 a call via the IAH-MAR email list gave explicit requirements for any potential contributors.  Based on submissions received, selected case study authors were invited to attend a meeting in Madrid on 19 May 2019 immediately before ISMAR10, to help finalise their contributions and discuss the synthesis chapter(s) on these topics, notably to help select meaningful sustainability indicators.  This is a combined activity of the IAH-MAR Working Groups on MAR for Sustainable Development, and Economics of MAR and of GRIPP. It is led by Yan Zheng, Andrew Ross and Karen Villholth, respectively, assisted by Peter Dillon.  Editing is continuing and about 20 sites now have the necessary information and give a broad geographic coverage for a wide variety of project types and scales.  The product document will be submitted to UNESCO in October 2019 for publication as a book. .. updated Sept 2019.

UNESCO Travel Scholarships to ISMAR10 –to support selected postgraduate students or early career scientists  from developing countries
– Applications closed on 30 Nov 2018, and applicants have been notified of outcomes.

Congratulations to the successful winners of the highly competitive UNESCO Travel Awards:

Jose Bonilla Valverde Costa Rica
Prahlad Soni India
Mohammad Faiz Alam India
Meng Ma China
Lucila Araújo Fernandes Brazil
Zhang Hexuan China
Victor Hugo Rabelo Coelho Brazil
Piya Mohasin India


Jose Bonilla Valverde1, Bruce Misstear2, Victor Rabelo Coelho1, Lucila Araújo Fernandes1, Prahlad Soni1, Alice Aureli 3, Piya Mohasin1,  Zhang Hexuan1, Meng Ma1, Peter Dillon4, Wang Weiping4, Yan Zheng5, Catalin Stefan5, Enrique Fernandez Escalante5  (absent- Mohammad Faiz Alam1 )

1 UNESCO MAR Scholar 2019, 2 IAH Secretary General, 3 UNESCO Chief of Section SC/HYD/GSS,  4 former IAH-MAR co-chair, 5 current IAH-MAR co-chair