Water Storage Investment Program Project Review Portal
Proposition 1 dedicated $2.7 billion for investments in new water storage projects. The California Water Commission (Commission), through the Water Storage Investment Program (WSIP), will fund the public benefits of these projects.
The application period for WSIP funding closed on August 14, 2017. Information about the applications received by the Commission and the review process can be found below. Links to Commission staff Technical Review and related documents can be found under the Scores and Technical Review heading. For more information or to request application or review files, please email cwc@water.ca.gov.
The "Initial Applications" table below reflects public benefits claimed, funding request, and total project cost as they were submitted in the initial application.
| Applicant |
Project | Status | Project Type |
Claimed Public Benefit |
Funding Request |
Total Project Cost |
|---|---|---|---|---|---|---|
| City of San Diego - Public Utilities Department | Pure Water San Diego Program North City Phase 1 | Ineligible | Local Surface Storage | Ecosystem Improvements, Water Quality Improvements, Emergency Response, Recreational Purposes | $219 M | $1,210 M |
| Contra Costa Water District | Los Vaqueros Reservoir Expansion Project | MCED Issued | Surface Storage Projects Identified in the CALFED ROD | Ecosystem Improvements, Emergency Response, Recreational Purposes | $434 M | $795 M |
| Inland Empire Utilities Agency | Chino Basin Conjunctive Use Environmental Water Storage/Exchange Program | MCED Issued | Conjunctive Use | Ecosystem Improvements, Water Quality Improvements, Emergency Response | $480 M | $480 M |
| Irvine Ranch Water District/Rosedale-Rio Bravo Water Storage District | Kern Fan Groundwater Storage Project | MCED Issued | Groundwater Storage | Ecosystem Improvements, Emergency Response | $86 M | $171 M |
| Nevada Irrigation District | Centennial Water Supply Project | Ineligible | Local Surface Storage | Ecosystem Improvements, Recreational Purposes | $12 M | $324 M |
| River Partners | San Joaquin River & Tributaries Conjunctive Use | Ineligible | Conjunctive Use | Ecosystem Improvements, Water Quality Improvements | $22 M | $22 M |
| Sacramento Regional County Sanitation District (Regional San) | Harvest Water Program (previously called South County Ag Program) | MCED Issued | Conjunctive Use | Ecosystem Improvements, Water Quality Improvements, Emergency Response, Recreational Purposes | $304 M | $373 M |
| San Joaquin Valley Water Infrastructure Authority | Temperance Flat Reservoir Project | MCED Returned | Surface Storage Projects Identified in the CALFED ROD | Ecosystem Improvements, Flood Control Benefit, Emergency Response, Recreational Purposes | $1,330 M | $2,661 M |
| Santa Clara Valley Water District | Pacheco Reservoir Expansion Project | MCED Issued | Regional Surface Storage | Ecosystem Improvements, Flood Control Benefit, Emergency Response | $485 M | $2,500 M |
| Semitropic Water Storage District | The Tulare Lake Storage and Floodwater Protection Project | Ineligible | Conjunctive Use | Ecosystem Improvements, Flood Control Benefit, Emergency Response, Recreational Purposes | $452 M | $603 M |
| Sites Project Authority | Sites Project | MCED Issued | Surface Storage Projects Identified in the CALFED ROD | Ecosystem Improvements, Water Quality Improvements, Flood Control Benefit, Emergency Response, Recreational Purposes | $1,662 M | $3,930 M |
| Southern California Water Bank Authority | Willow Springs Water Bank Conjunctive Use Project | MCED Issued | Conjunctive Use | Ecosystem Improvements, Emergency Response | $306 M | $343 M |
Information about project PBRs can be found in the table below. This PBR summary table displays each applicant's Commission determined public benefit value, eligible amount, funding request, and final PBR.
| Applicant | Project | Applicant Submitted PBR |
PBR Review | Staff Response to Appeal | Final PBR |
|---|---|---|---|---|---|
| City of San Diego - Public Utilities Department | Pure Water San Diego Program North City Phase 1 | 6.10 | 0.00 | 0.05 | N/A |
| Contra Costa Water District | Los Vaqueros Reservoir Expansion Project | 3.60 | 0.46 | 1.77 | 1.81 |
| Inland Empire Utilities Agency | Chino Basin Conjunctive Use Environmental Water Storage/Exchange Program | 1.72 | 0.71 | 0.92 | 1.78 |
| Irvine Ranch Water District/Rosedale-Rio Bravo Water Storage District | Kern Fan Groundwater Storage Project | 1.47 | 0.58 | 0.85 | 1.05 |
| Nevada Irrigation District | Centennial Water Supply Project | 4.20 | 0.00 | N/A | N/A |
| Sacramento Regional County Sanitation District (Regional San) | Harvest Water Program (previously called South County Ag Program) | 2.95 | 0.75 | 0.87 | 1.05 |
| San Joaquin Valley Water Infrastructure Authority | Temperance Flat Reservoir Project | 2.86 | 0.10 | 0.38 | 2.92 |
| Santa Clara Valley Water District | Pacheco Reservoir Expansion Project | 2.43 | 0.36 | 1.77 | 2.02 |
| Semitropic Water Storage District | The Tulare Lake Storage and Floodwater Protection Project | 1.63 | 0.01 | 0.03 | N/A |
| Sites Project Authority | Sites Project | 2.11 | 0.40 | 0.67 | 1.1 |
| Southern California Water Bank Authority | Willow Springs Water Bank Conjunctive Use Project | 2.60 | 0.00 | 0.35 | 1 |
The table below contains each project's total score, as determined by reviewers. The maximum possible total score is 100. For information about each project's component scores, click the link to technical review to access all technical review documents for that project. For a summary of all projects' preliminary component scores, please see the Preliminary Application Score Summary Table. For a summary of all projects' final component and total scores, please see the Summary of Final Application Scores.
Project ranks, suggested maximum conditional eligibility amounts, and early funding request amounts can be found on the Summary of Application Rank and Early Funding Requests table, pursuant to section 6011(g) of the WSIP regulations.
| Applicant | Project | Staff Score | Technical Review | Final Score |
|---|---|---|---|---|
| Contra Costa Water District | Los Vaqueros Reservoir Expansion Project | 76 | Technical Review | 76 |
| Inland Empire Utilities District | Chino Basin Conjunctive Use Environmental Water Storage/Exchange Program | 69 | Technical Review | 70 |
| Irvine Ranch Water District/Rosedale-Rio Bravo Water Storage District | Kern Fan Groundwater Storage Project | 48 | Technical Review | 54 |
| Sacramento Regional County Sanitation District (Regional San) | Harvest Water Program (previously called South County Ag Program) | 74 | Technical Review | 77 |
| San Joaquin Valley Water Infrastructure Authority | Temperance Flat Reservoir Project | 71 | Technical Review | 73 |
| Santa Clara Valley Water District | Pacheco Reservoir Expansion Project | 82 | Technical Review | 82 |
| Sites Project Authority | Sites Project | 61 | Technical Review | 61 |
| Southern California Water Bank Authority | Willow Springs Water Bank Conjunctive Use Project | 53 | Technical Review | 53 |
The table below contains the Maximum Conditional Eligibility Determinations (MCEDs) determined by the Commission on July 24, 2018 and adjusted MCEDs determined by the Commission on January 20, 2021, as well as early funding amounts approved by the Commission.
| Applicant | Project | 2018 MCED | 2021 MCED | 2022 MCED | Early Funding (Portion of MCED) |
|---|---|---|---|---|---|
| Contra Costa Water District | Los Vaqueros Reservoir Expansion Project | $459,000,000 | $470,475,000 | $477,558,343 | $23,877,917 |
| Inland Empire Utilities District | Chino Basin Conjunctive Use Environmental Water Storage/Exchange Program | $206,900,000 | $212,072,500 | $215,265,405 | $10,763,270 |
| Irvine Ranch Water District/Rosedale-Rio Bravo Water Storage District | Kern Fan Groundwater Storage Project | $67,537,315 | $87,801,500 | $89,123,415 | None Requested |
| Sacramento Regional County Sanitation District (Regional San) | Harvest Water Program (previously called South County Ag Program) | $280,500,000 | $287,512,500 | $291,841,209 | $14,375,625 |
| Temperance Flat Reservoir Authority | Temperance Flat Reservoir Project | $171,330,000 | * | * | -- |
| Santa Clara Valley Water District | Pacheco Reservoir Expansion Project | $484,550,000 | $496,663,750 | $504,141,383 | $24,200,000 |
| Sites Project Authority | Sites Project | $816,377,686 | $836,787,128 | $875,396,369 | $43,769,818 |
| Southern California Water Bank Authority | Willow Springs Water Bank Conjunctive Use Project | $95,405,999 | $126,372,250 | $128,274,876 | $6,413,744 |
*Temperance Flat Reservoir Project withdrew from the WSIP.