September 25, 2007

Who is Brushy Creek Regional Utility Authority?Local government corporation formed by Cedar

Park, Leander and Round Rock to access, treat and deliver water from Lake Travis to their customers

Mission is to provide reliable, cost-effective sources of treated water for our growing population, area jobs, future schools, hospitals, etc.

All three cities have purchased water rights from the Lower Colorado River Authority

Lake Travis factsHighland lakes were created in 1930s and

1940s for flood control and water supply

In a typical year, 600 billion gallons flow through the Colorado's 900-mile course

Lakes Travis and Buchanan have a combined capacity of about 650 billion gallons

This project won’t drain lake LCRA uses the lakes and river as a system to

conserve and convey water supplies according to a Management Plan developed by water supply experts and approved by the state of Texas

At full utilization, many decades from now, the BCRUA project will use about 8 percent of the water LCRA has rights to sell

Statutory water rights order of preference1. Domestic and municipal water supply 2. Industrial 3. Irrigation 4. Mining and recovery of minerals 5. Hydroelectric power 6. Navigation 7. Recreation and pleasure 8. Other beneficial uses

Project timeline Phase 1 – 30 million gallons a day (summer

2010) Floating intake 78-inch raw water pipeline Regional water treatment plant Treated water pipelines to Leander, Cedar Park,

Round Rock Phase 2A – (2011 to 2012)

Deep water intake Raw water line from intake to Phase 1 pipeline

Phase 2B – 84 million gallons a day (2017) Water treatment plant expansion

Phase 3 – 106 million gallons a day (2024) Final water treatment plant expansion

Pipeline route evaluationEvaluation criteria

Construction issuesEnvironmental impactsCostPermitting and easements

Two routes consideredAlternative A, A-1, A-2 (Balcones Canyonlands

Preserve)Alternative B (Trails End)

Alternative A (BCP route)Advantages DisadvantagesPortion of pipeline in

existing easementSlightly lower costLimited temporary

easementsLimited direct impact to

homeowners

Crosses known karst features with potential endangered species that can’t be mitigated

Crosses BCP propertyCrosses golden-cheeked

warbler habitatImpact to traffic on

Anderson Mill RoadMultiple permanent

easements required

Alternative B (Trails End route)Advantages DisadvantagesMost direct, shortest

route to regional water treatment plant

Minimal environmental impacts

Limited permanent easements required

Impacts to homeownersSlightly higher costImpact to traffic on

Trails End RoadTunneling required

Trails End Pipeline Alignment

Trails End projectConstruction start late spring or early

summer 2008, take 24 months to completeConstruction issues:

Traffic controlWork hoursDust/mud controlDrainageProtect septic tank/ drain fields

Driveway accessNoisePavement restorationProtect fences, mail boxesProtect septic tank drain

fields

Please submit cards if you have not already done so.

Please be aware we have to vacate the school by 8:45 p.m., so keep your comments as brief as possible so

everyone has a chance to speak.