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July 23, 2020
INDEPENDENT SPECIAL DISTRICTS OF ORANGE COUNTY
HISTORY1932: Water service to Three Arch Bay and Capistrano-by-the-Sea. 1976: South Coast Water District and South Laguna Sanitary District consolidated. 1999: Dana Point Sanitary District and Capistrano Beach Water District consolidated into South
Coast Water District. Agreement with City of Laguna Beach to serve South Laguna.2000: Operate the Joint Regional Water Supply System bringing water from MWD’s Diemer Plant
into South Orange County via 30+ miles of large diameter transmission pipelines and 60 Million Gallons of storage, serving over 200,000 residents.
DISTRICT FACTSWater Wastewater
8.3 square-mile area 12.1K Water Accounts 17.8K Sewer Accounts40,000 residents & 1,000 businesses 147 Miles of Pipeline 140 Miles of Sewer Mains 2+ million visitors a year 9 Pump Stations 13 Lift StationsDemand: 5,500 AF per Year 13 Reservoirs 2-mile Sewer TunnelAnnual Revenue: $36,000,000 Groundwater Recovery Facility
Recycled Water AWT &R.O. Polishing Facility 2
3
GM Pride
• Investment in CIP and Maintenance Program:• 2 to 4% Water Loss• Low Inflow & Infiltration• 65% of sewer mains video inspected annually• SCWD recycles 70% of sewage that flows to the Coastal
Treatment Plant, with plans to expand to 100%• Over 95% “Excellent” Customer Service Rating year-
after-year• Diversified Funding Sources for CIP
• SRF Loan, PAYGO, & Bond Financing• Groundwater Recovery Facility – 10-15% of water
portfolio• Live Stream & Archived Board/Comm Meetings, since
20084
South Coast Water District Operates the Joint Regional Water Supply System
5
Member Agencies• California State Parks• Camp Pendleton• City of San Clemente• City of San Juan Capistrano• El Toro Water District• Irvine Ranch Water District• Moulton Niguel Water District• South Coast Water District• Southern California Edison
TUNNEL STABILIZATION & PIPELINE REPLACEMENT PROJECT
6
• 1954: Blasted and hand-dug within the South Laguna bluffs• Two miles from Three Arch Bay to Aliso Beach• Gravity sewer line operating without lift stations• 1974: Original pipeline replaced• Flow: 1 Million Gallons of Sewage per Day• ~$100 Million, Multi-Year Repair Project• Fund Source: SRF Loan • Construction: Ongoing
AlisoBeach
ThreeArch Bay PROJECT LOCATION
Current Tunnel Conditions
7Decaying support beams
Decaying support beams
‘Rendering’ of Rehabilitation
8
Doheny Ocean Desalination Project
9
• Phase 1 Up to five million gallons per day potable water • Facility would receive approximately 10 MGD ocean water
to produce five MGD• Ultimate capacity is 15 mgd
Project Goals
• Provide a high quality, locally controlled and drought-proof water supply while protecting the environment
• Further diversify the District’s water supply portfolio to reduce dependence on imported water supplies
• Provide emergency backup water supplies, should an earthquake, system shutdown, or other event disrupt the delivery of imported water to South Orange County
10
SCWD Water Reliability Portfolio Approach
11
RECYCLED WATER: 11%
WATER USE EFFICIENCY: 20%
GROUNDWATER RECOVERY: 9%
MWD IMPORTED WATER:
60%
SCWD TOTAL WATER SUPPLIES
WATER USE EFFICIENCY
GROUNDWATER RECOVERY
RECYCLED WATER
STORMWATER CAPTURE
SCWD Current Drinking Water Supplies
12
GROUNDWATER RECOVERY 12.5%
MWD IMPORTED WATER 87.5%
Local Seismic Risks to Our Water Reliability
13
Project History
2003Feasibility
Study
2004-2007Slant Test Well
Pilot Study
2008-2013Phase 3 Extended Pumping & Pilot
Plant Test
2004-2005Hydrogeology
Studies
2007Engineering
Feasibility Report
2019EIR
Certification
2014-2016MWD Foundational
Actions Funding Program
2018$10 Million
Prop 1 Grant Funding
2020Due Diligence Studies
2020USEPA WIFIA Funding
Shortlist
Planned Project Facilities
15
Project Status – Completed Milestones
Complete• Environmental Impact
Report Certification –5 MGD
• Delivery Method Selection (Design-Build-Operate-Maintain)
• Legislative Fix AB 1752
16
Project Status: Milestones In-Progress
In Progress• Permitting • Cost Analysis Study
• Anticipate results will be presented in in August 2020
• Slant Well Hydrogeologic Review• U.S. Geological Survey
• Alternative Power Supply Study• Hybrid Project Concept Study
• Using District’s Groundwater Recovery Facility
• Ocean Water Augmentation Study –Combined Ocean Desal & Direct Potable Reuse
17
Partnering for Viable Water Reliability
18
Broad-Based Support
Elected Official Support
Regulatory Support
CommunitySupport
StakeholderSupport
January 2020 2025/26
Spring/Summer 2021Env. Permitting
DBOM Contract Dev. & Award
Design/Build
January2021
January2022
31
High Level Project Timeline
Financial Study Scheduled for August 19, 2020
Doheny DesalPlant On-line
Local Potable Water System Integration
Solicit Partners
Due Diligence Studies
Doheny Ocean Desalination - Customer Survey
• SCWD conducted a customer survey • During pandemic & recession
• Results included:• 74% favor the Project after
Description• 80% favor Project after
Education• 72% favor Project after Critical
Statements
20
Customer Survey – Willingness to Pay
21