Engineers Without Borders, an NGO based in Boulder, CO, is involved with projects in over 45 developing countries around the world. Five of its 12,000-plus members are working with ENLACE on a holding tank a few kilometers above the well site of this project. A week or two ago, the tank site (Rebombeo #2) was a collection of scrub brush and sink holes along the side of a mountain between Las Delicias and Las Animas…