Ventura Water Pure Moving from Ocean Disposal to

Ventura. Water. Pure Moving from Ocean Disposal to Direct Potable Reuse Joe Mc. Dermott Acting General Manager Ventura Water

Water Portfolio Current Reclaim (Non -Potable) 3% Direct Potable Reuse 13% Casitas (Surface) 25% Future Desal 5% Casitas (Surface) 21% State Water 13% Groundwater 52% Ventura River (Sub Surface) 20% Reclaim (Non. Potable) 3% Ventura River (Sub Surface) 14% Groundwate r 31%

Why Diversify? • Stressed water supplies (drought / increasing population) • Degraded groundwater quality • Competing interests to protect endangered species • Fighting over water rights

Discharge to the Santa Clara River Estuary VWRF Steelhead Tidewater goby California least tern Western snowy plover

Alternative Solutions VWRF Urban Irrigation Agricultural Irrigation Groundwater Recharge Outside City Supply Seasonal use and little supply benefit Groundwater Direct Potable Recharge Reuse for City Supply Enhancing potable supply and maximizing use of effluent

Stakeholder Input Reuse Alternative Urban Irrigation Agricultural Irrigation Reliable Water Reduction of Supply Effluent Benefit Flow Potential to Offset other Capital Projects Treatment Costs Low Medium Groundwater Recharge High Direct Potable Reuse High

Moving Forward With Potable Reuse VWRF Ultrafiltration Reverse Osmosis Advanced Oxidation Potable Reuse Concentrate Disposal Treatment Wetlands Discharge = 4 to 5 mgd Nitrate <4 mg-N/L SCRE

The Goal • Providing a safe, reliable & adequate water supply • Providing ecologically protective solutions for wastewater • Minimizing rate payer impacts

Call to Action Regulatory/ Acceptance Technical Feasibility Public Support

Support for DPR in Ventura 3% 6% Q: How do you feel about adding DPR water to Ventura's drinking water supply if it was treated to the same quality (or higher) as regular tap water? Strongly Support 39% 22% Moderately Support Unsure/No Fixed Opinion Moderately Oppose 29% Strongly Oppose Generally more support than opposition