 Some invasive mussels were found on the western slope earlier this month. Zebra mussels were found in three separate samples taken near Grand Junction. Colorado Parks and Wildlife say those living beings pose a significant risk to water infrastructure and to native fish populations. They're working to understand where those mussels are coming from so they can hopefully solve the root of the problem. In the meantime, signs are being posted in areas where signs of life were found and increased testing is taking place.