Some La Plata County residents are looking for alternate sources of drinking water after a wastewater treatment system malfunctioned, sending E. coli into the local waterways. The wastewater treatment system serves Pine Winds Mobile Home Park, where about 60 people live east of the La Plata River and west of Durango. Rivulets of water crisscrossed the community’s main road Monday, flooding its central leach field. The field typically helps treat wastewater before it enters the groundwater system or nearby creek that flows into the La Plata River. The leach field is failing, said Nicole Rowan, director of the water quality control division at the Colorado Department of Public Health and Environment. “There’s too much water in there, so it can’t slowly let the water flow through it to properly treat it,” Rowan said.