1. CBEWP Chino Basin Conjunctive Use Environmental
Water Storage/Exchange Program
Proposition 1 Water Storage Investment Program June 2018

2. CBEWP Chino Basin Conjunctive Use Environmental
Water Storage/Exchange Program
Create a dedicated environmental water account with % of the water available for Delta Benefits while providing regional and local water resiliency benefits
Ecosystem Support
Drought Resilient New Supply
Groundwater Sustainability
Water Use Maximization
Water Quality Enhancement
Regional Integration
The Chino Basin Project was conceptualized specifically to respond to WSIP, unlike many proposals that have been under study for many years and adapted.
The local AWT component of the project was contemplated in many of the regional planning documents to meet water quality needs.
The project was molded with the opportunity of the WSIP … meld the needs of the N. Cal with S. Cal’s requirements and provide public benefit to the Delta … As such, the project was crafted with a resilient source of supply from the AWT recycled water … as pulse flows …
Resilient: recycled water, not dependent on climate
Environmental benefits: dedicated pulse flows for Chinook salmon, salinity control, allows continued use of recycled water, addresses land subsidence
Included in 14 local and regional planning studies
Local project tailored to provide Delta ecosystem benefits
Secured non-potable supply agreements from local agencies
50+ years proven record of working collaboratively with regional stakeholders and regulatory agencies

3. CBEWP Chino Basin Conjunctive Use Environmental
Water Storage/Exchange Program 7 5 6
Secure local recycled water supplies
Advanced water treatment
Store treated water in groundwater basin
Pump stored groundwater to local SWP contractor
SWP contractor transfers equivalent amount of water at Oroville Reservoir
Water released during dry and critically dry years to Feather River
Water flows downstream to Delta 1
Sacramento
San Joaquin Delta 2 3
Lake Oroville
Feather River 4 5
CA Aqueduct 6 1 2 3 4
The Chino Basin Project was conceptualized specifically to respond to WSIP, unlike many proposals that have been under study for many years and adapted.
The local AWT component of the project was contemplated in many of the regional planning documents to meet water quality needs.
The project was molded with the opportunity of the WSIP … meld the needs of the N. Cal with S. Cal’s requirements and provide public benefit to the Delta … As such, the project was crafted with a resilient source of supply from the AWT recycled water … as pulse flows … 7
Chino Basin

4. CBEWP Cost Effectiveness Chino Basin Conjunctive Use Environmental
Water Storage/Exchange Program
Cost Effectiveness
CWC staff review:
B/C ratio is substantially less than 1.0
Alleviating historical land subsidence was not monetized
Potential costs to exchange stored water was not monetized
Response:
Project refinements add significant new non-public benefits, increasing B/C ratio 1.0 to 1.5
Monetization of land subsidence benefit + added conjunctive use water supply benefit
NO SIGNIFICANT ADDITIONAL COST for exchange is expected
Cost Effectiveness to IEUA & Partnering agencies
-emergency supply during non-call years
-enhance local water quality
-consistent with long-term planning documents (accelerates to provide salmonids?? ecosystem benefits, and would be available in use by region by time region requires it) (planning docs anticipated constructing these type of facilities for local use by ~ )
Other Agency Considerations:
-consistent with environmental ethos of providing maximum benefits to human and environmental needs (IEUA has a long history and outstanding record of going above and beyond to incorporate ecosystem consideration into projects, such as wetland park, RP-3… HCP…)
-strongly believe this type of project is the future for how to have (language from Susan’s letter…) ecosystem and public needs met across the state
Request Commission to make determination that the project is cost effective

5. CBEWP Chino Basin Conjunctive Use Environmental
Water Storage/Exchange Program
 Cost Item
CWC Staff
IEUA A
IEUA B
IEUA C
Capital Costs
$372
Interest
$44
$42
SAR Agreement
$119 $0
AWT O&M
$398
$350
Ad’l Water Supply O&M -  -
$58
Equipment Replacement
$43
TOTAL COST
$977
$807
$865
Public Benefits
$368
$523
Non-Public Benefit
Avoided O&M Cost
 $21
$67
Water Supply Benefit
$109
$87
$382
 $382
Subsidence Abatement  -
$294
TOTAL BENEFIT
$498
$816
$1,111
$1,265
B/C Ratio
0.51
1.01
1.28
1.46
Technical cost corrections
CWC valuation of Public benefits
No SAR Agreement Cost
Monetized subsidence
B/C = 1.01
The Chino Basin Project was conceptualized specifically to respond to WSIP, unlike many proposals that have been under study for many years and adapted.
The local AWT component of the project was contemplated in many of the regional planning documents to meet water quality needs.
The project was molded with the opportunity of the WSIP … meld the needs of the N. Cal with S. Cal’s requirements and provide public benefit to the Delta … As such, the project was crafted with a resilient source of supply from the AWT recycled water … as pulse flows …

6. CBEWP Chino Basin Conjunctive Use Environmental
Water Storage/Exchange Program
 Cost Item
CWC Staff
IEUA A
IEUA B
IEUA C
Capital Costs
$372
Interest
$44
$42
SAR Agreement
$119 $0
AWT O&M
$398
$350
Ad’l Water Supply O&M -  -
$58
Equipment Replacement
$43
TOTAL COST
$977
$807
$865
Public Benefits
$368
$523
Non-Public Benefit
Avoided O&M Cost
 $21
$67
Water Supply Benefit
$109
$87
$382
 $382
Subsidence Abatement  -
$294
TOTAL BENEFIT
$498
$816
$1,111
$1,265
B/C Ratio
0.51
1.01
1.28
1.46
Technical cost corrections
CWC valuation of Public benefits
No SAR Agreement Cost
Monetized subsidence
New conjunctive use benefit averaging 15 TAF/Y
B/C=1.28
The Chino Basin Project was conceptualized specifically to respond to WSIP, unlike many proposals that have been under study for many years and adapted.
The local AWT component of the project was contemplated in many of the regional planning documents to meet water quality needs.
The project was molded with the opportunity of the WSIP … meld the needs of the N. Cal with S. Cal’s requirements and provide public benefit to the Delta … As such, the project was crafted with a resilient source of supply from the AWT recycled water … as pulse flows …

7. CBEWP Chino Basin Conjunctive Use Environmental
Water Storage/Exchange Program
 Cost Item
CWC Staff
IEUA A
IEUA B
IEUA C
Capital Costs
$372
Interest
$44
$42
SAR Agreement
$119 $0
AWT O&M
$398
$350
Ad’l Water Supply O&M -  -
$58
Equipment Replacement
$43
TOTAL COST
$977
$807
$865
Public Benefits
$368
$523
Non-Public Benefit
Avoided O&M Cost
 $21
$67
Water Supply Benefit
$109
$87
$382
 $382
Subsidence Abatement  -
$294
TOTAL BENEFIT
$498
$816
$1,111
$1,265
B/C Ratio
0.51
1.01
1.28
1.46
Technical cost corrections
No SAR Agreement Cost
Monetized subsidence
New conjunctive use benefit averaging 15 TAF/Y
IEUA valuation of Public Benefits
B/C=1.46
The Chino Basin Project was conceptualized specifically to respond to WSIP, unlike many proposals that have been under study for many years and adapted.
The local AWT component of the project was contemplated in many of the regional planning documents to meet water quality needs.
The project was molded with the opportunity of the WSIP … meld the needs of the N. Cal with S. Cal’s requirements and provide public benefit to the Delta … As such, the project was crafted with a resilient source of supply from the AWT recycled water … as pulse flows …

8. Extraction Facilities
CBEWP
Chino Basin Conjunctive Use Environmental
Water Storage/Exchange Program
Extraction Facilities 10
Injection Facilities
The Chino Basin Project was conceptualized specifically to respond to WSIP, unlike many proposals that have been under study for many years and adapted.
The local AWT component of the project was contemplated in many of the regional planning documents to meet water quality needs.
The project was molded with the opportunity of the WSIP … meld the needs of the N. Cal with S. Cal’s requirements and provide public benefit to the Delta … As such, the project was crafted with a resilient source of supply from the AWT recycled water … as pulse flows …

9. Request Commission to increase the Implementation Risk score
CBEWP
Chino Basin Conjunctive Use Environmental
Water Storage/Exchange Program
Implementation Risk
CWC Staff Review:
Stated adaptive management strategies were not identified
Funding sources for local funding not identified
Response:
Referenced sections in application pertaining to adaptive management strategies; identified additional sources of local water
Local funds provided with dedicated fee and rate structure
Project is cost effective, with B/C of 1.0 to 1.5
Request Commission to increase the Implementation Risk score

10. Request Commission to increase the Non-monetized Benefit score
CBEWP
Chino Basin Conjunctive Use Environmental
Water Storage/Exchange Program
Non-monetized Benefits
CWC Staff Review:
Insufficient qualitative description of emergency response benefit
Response
Provided additional description for emergency
50 TAF, 29% of total demand for San Bernardino County
Project south of San Andreas Fault, provides water supply during catastrophic infrastructure failures
Provides additional conjunctive use water supply benefit
Monetized local land subsidence benefit
50,000 AF of supplemental water and represents approximately 30% of the annual SWP demand in the San Bernardino County area.
Increase regional distribution system flexibility and ability to utilize local supplies during emergency shut down or catastrophic events by constructing regional conveyance pipeline and new groundwater wells
Request Commission to increase the Non-monetized Benefit score

11. Request Commission to increase the Resiliency score
CBEWP
Chino Basin Conjunctive Use Environmental
Water Storage/Exchange Program
Resiliency
CWC Staff Review:
Lack of specificity of regional documents
2070 climate change scenarios not provided
Response:
Recycled water independent of hydrology & climate change
Included in 14 regional planning documents, referenced in application
2070 conditions: not applicable & subsequent analyses confirm NO EFFECT on operations/benefits
Since the original application, incorporated into the 2017 Drought Response Plan, and the 2018 Santa Ana Watershed Program Authority’s “One Water One Watershed” Plan, which is the regions Integrated Regional Water Management Plan. In addition, the Chino Basin Watermaster has evaluated ranges of additional storage for the Chino Basin Water Bank, and including the project in the Chino Basin Storage Framework evaluation for how safely manage future basin operations.
Request Commission to increase the Resiliency score

12. CBEWP Chino Basin Conjunctive Use Environmental
Water Storage/Exchange Program
Maximum Component Score
Preliminary Component Score
Maximum Commission Adjustment (25%)
IEUA Requested Revised Score
PBR & Non-Monetized Benefits 33 23 1 24
Relative Environmental Value 27
Resiliency 25 12 6 18
Implementation Risk 15 10 4 14
TOTAL SCORE
100 69 11 80
Since the original application, incorporated into the 2017 Drought Response Plan, and the 2018 Santa Ana Watershed Program Authority’s “One Water One Watershed” Plan, which is the regions Integrated Regional Water Management Plan. In addition, the Chino Basin Watermaster has evaluated ranges of additional storage for the Chino Basin Water Bank, and including the project in the Chino Basin Storage Framework evaluation for how safely manage future basin operations.
Request Commission to determine the project is cost effective and adjust category scores

14. Proposed Exchange is Small Relative to State Water Project Scale
CBEWP
Chino Basin Conjunctive Use Environmental
Water Storage/Exchange Program
Proposed Exchange is Small Relative to State Water Project Scale
Lake Oroville Capacity: 3,500,000 Acre-Feet
CBEWP Exchange: 50,000 Acre-Feet