Zebra Mussels

Zebra Mussels Zebra mussels are a small, destructive invasive species that pose a danger to lake ecosystems, utilities and infrastructure. Boaters can unknowingly transport zebra mussels from lake to lake because the larvae are microscopic and easily transported in...

Water Quality Models

Water Quality Models To help manage the lower Colorado River watershed more effectively, LCRA has developed water quality computer models for the Highland Lakes. The Colorado River Environmental Models help evaluate water quality problems and issues, discern trends...

Water Quality Permitting Page

Water Quality Permitting   A number of agencies have the responsibility for protecting waterways in Texas. The following information is intended to help the public understand the participation processes used by the various permitting agencies that regulate activities...

Water Quality Permit Review Program

Water Quality Permit Review Program   LCRA monitors permit applications submitted through other regulatory agencies to minimize the effects from pollutants entering the water bodies of the lower Colorado River basin. The Application Review and Response Process (ARRP)...

Report Water Quality Concerns

Report Water Quality Concerns Use this Contact LCRA form to report a water quality concern or complaint. If your concern is urgent,  leave a message for LCRA Water Quality Protection at 512-730-6843. A notification will be forwarded to an on-call staff...

Managing nuisance aquatic plants

Managing Nuisance Aquatic Plants HYDRILLA WATER HYACINTH EURASIAN WATERMILFOIL Invasive aquatic plants such as hydrilla, water hyacinth and Eurasian watermilfoil are sometimes found in the Highland Lakes. LCRA manages hydrilla and water hyacinth on the Highland Lakes...