Zebra mussels rapidly reproduce and are originally from Eurasia. They clog public-water intake pipes and dams, harm boats and motors, block water-cooling systems, have sharp edges and affect the general health of lakes and rivers.

To help combat the spread of the invasive species, the Texas Parks and Wildlife Department (TPWD) has approved new regulations requiring that all boats operating in public fresh water anywhere in Texas be drained before leaving or approaching a lake or river.

Zebra mussels have spread to Lake Belton with much concern they will spread to the Highland Lakes and many public waters in Central Texas.

Effective July 1, boaters will be required to clean, drain and dry their boats, looking for attached zebra mussels, both leaving and approaching public waters. All types and sizes of boats—powered or not–including personal watercraft, sailboats, kayaks, canoes and any other vessel used on public waters will be required to observe the rule.