Central Avra Valley Storage & Recovery Project (CAVSARP)

Borderland built CAVSARP– the first basins that collected Colorado River water from the Central Arizona Project to recharge the water table – a 10 million gallon concrete reservoir that stored the blend of CAP water and groundwater recovered by area wells, and a booster station that delivers up to 54 million gallons of water per day to Tucson Water customers.

The CAVSARP project included 11 basins totaling 317 acres and seven miles of 60” transmission pipe.


This project included the installation of:

  • 8.5 million-gallon potable water concrete reservoir
  • Booster facility
  • 36” to 72” pipe and valves
  • (7) 400 hp electric vertical turbine booster pumps
  • (7) natural gas-fired vertical turbine pumps
  • Reinforced concrete vaults
  • Structural steel roof framing system
  • Standing seam aluminum roof
  • Coatings
  • Earthwork and grading
  • Control building
  • Noise abatement structure
  • Electrical and telemetry systems

Project Details

Location: Avra Valley, Pima County, Arizona
Construction Cost: $8.9 M
Owner: City of Tucson, Water Department
Project Delivery: DBB
Scope: Basins, reservoirs, booster stations