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Calleguas Regional Salinity Management Project

The Calleguas Regional Salinity Management Project aims to reduce naturally occurring salts and total dissolved solids in the Ventura County groundwater through the construction of a Salinity Management Pipeline. This project improves water reliability, reduces salinity in the watershed, lowers greenhouse gas emissions, and facilitates stormwater capture.

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Calleguas Regional Salinity Management Project

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  1. Calleguas Regional Salinity Management Project Susan Mulligan, General Manager Calleguas Municipal Water District

  2. Calleguas Service Area

  3. Salt Build-Up Naturally occurring salts

  4. Ventura County Groundwater Salinity Total Dissolved Solids (TDS)

  5. Groundwater Desalter

  6. By providing a means of transporting salty water to the ocean, the Salinity Management Pipeline • Increases water reliability • Reduces salinity in the watershed • Lowers greenhouse gas emissions • Facilitates stormwater capture

  7. Project Cost: $207M State Grant Funding: - Prop 13 $2.3M - Prop 40 $5.0M - Prop 50 $8.9M - Prop 84 $3.8M Total $20M In Design & Planning Complete Salinity Management Pipeline Construction

  8. City of Port Hueneme HuenemeOutfall ~5,000’ long • 30” diameter

  9. Hueneme Outfall Pipe on the sea floor for an additional 2,300 feet from shore (past surf zone) Beach Diffuser on the sea floor for an additional 400 feet from shore Pipe up to 50 feet below the sea bed for about 2,300 feet from shore

  10. Horizontal directional drilling Barge Drill rig Pipe String of steel rods

  11. Drill rig for installation of the outfall

  12. Tugboat and barge

  13. Pipe Stringing Area at Point Mugu Naval Air Weapons Center

  14. Pulling pipe string across beach at Pt. Mugu

  15. Floating pipe string over to Hueneme Beach

  16. Simi Valley Desalter Moorpark Desalter Las Posas Ag Desalter(s) Hill Canyon Desalter North Pleasant Valley Desalter Santa Rosa Ag Desalter(s) Oxnard Plain Ag Desalter(s) Conejo Valley Desalter(s) Round Mountain Desalter Port Hueneme Desalter Groundwater desalters are being planned and built

  17. In closing… One water supplier’s perspective • Southland water agencies have clearly demonstrated their commitment to regional water solutions and sustainability. • Metropolitan’s leadership in conservation and the development of alternative water supplies is to be commended. • Chronic lack of Delta water reliability places the health of our economy at risk… and has for decades. • A Delta fix must include new conveyance facilities truly capable of meeting the needs of California’s water users.

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