Colorado waters test free of invasive mussels; Aquatic Nuisance Species Management Plan approved
Colorado waters test free of invasive mussels; Aquatic Nuisance Species Management Plan approved Colorado has mandatory boating inspections in place to help monitor that mussels do not cross state lines. DENVER - After three consecutive years of negative testing, Colorado Parks and Wildlife (CPW) has removed Green Mountain Reservoir in Summit County from the positive waters list for quagga mussels, a prohibited aquatic nuisance species (ANS). As Green Mountain Reservoir was the only body of water in Colorado suspected of having a population of quagga mussels, this de-listing makes Colorado a completely negative state for both zebra and quagga mussels. In August 2017, Green Mountain Reservoir, which is owned and operated by the Bureau of Reclamation and whose developed public recreation sites are managed by the White River National Forest, tested positive for the presence of quagga mussel larvae (veligers). No adult mussels were ever found in Green Mountain Reservoir nor hav...