PHASES

The San Juan Watershed Project is a long-term project that is built on decades of research.

The project is comprised of THREE unique phases.

Phase one will supply
1,120 to 1,198 acre feet of local, reliable water to South Orange County residents by installing rubber dams to capture and filtrate storm water.

Benefits

Benefits seen within 24-36 months

Water Supply Benefits

  • Enhance Reliability
  • Provide Drought-Proofing
  • Utilize Existing Treatment Facilities

local-supplya

Watershed Benefits

  • Support MS4 Requirements
  • Immediate Water Quality Improvement
  • Environmental Enhancements
  • Stabilize Streambed
  • Aquatic Connectivity

eco-enhancements

Timeline

Phase 1
This animation highlights the proposed use of rubber dams to increase the capture of stormwater within the basin. Rubber dams are operated remotely and take roughly 45 minutes to inflate and 25 minutes to deflate.

Phase 1
This animation highlights the proposed use of rubber dams to increase the capture of stormwater within the basin. Rubber dams are operated remotely and take roughly 45 minutes to inflate and 25 minutes to deflate.

Phase two will deliver
an additional 2,660 to 4,920 acre feet of local, reliable water a year to South Orange County residents. Phase two builds on phase one by capturing and filtrating stormwater + recycled water.

Benefits

Affordable/Reliable Supply
Maximize use of recycled water

Reduce secondary Water Storage effluent to ocean

Increase Aquatic Connectivity

Water Storage

Phase 2
Additional rubber dams will be installed to increase the capture of stormwater + recycled water wintin the basin. This video provides an idea of where the rubber dams will be installed and where recycled water will be merged with the San Juan Creek.

Phase three supplies
South Orange County residents with an additional 2,660 acre feet of local, reliable water a year by recharging recycled water up stream. In total, the San Juan Watershed Project has the potential to provide 2.8 billion gallons of local, reliable water to local residents.

Phase 3
The final phase of the project will increase the amount of recycled water merged with the creek.
This video demonstrates the completed San Juan Watershed Project which has the potential to provide 2.8 billion gallons of local, reliable water.

FUNDING

In just 7-8 years, the cost of water from the San Juan Watershed Project will be less expensive than imported water.

Phase one of the San Juan Watershed Project is funded by the following partners:

Project Costs

phase_1COST OF WATER

$1,230 to $1,560 AF
(Imported water currently costs $975 AF)

CAPITAL
$34 million

OPERATING
$800 AF
FINANCE
$120-210 AF
phase_2

CAPITAL
$86 million