Hi Brian, I used to work ...
Published by Richard Kuntner, Rural engineer / hydrologist (natural hazard mgt, water resources mgt / water harvesting)
Hi Brian,
I used to work with www.vivamosmejor.ch. It's an NGO operating through local partners in Guatemala, Colombia, (Nicaragua) and Brazil also in the field of DRR and water harvesting. Just conctact them, they might have some ideas...
Kind regards
Richard