Jul 17, 2006 — Walmart's effort to build a Supercenter on Route 11 in Potsdam is on hold. The retail giant's septic system plan for the site was rejected by the Department of Environmental Conservation. The DEC says Walmart needs to install a back-up leach field. Walmart has fired up fierce debate in Potsdam. It's also drawn the attention of more national chains. As David Sommerstein reports, another debate is looming over long-term planning.