Santa Ana River Conservation and Conjunctive Use Program – Detailed Project Schedule Presenter: Brian Dietrick December 22, 2016
Santa Ana River Conservation and Conjunctive Use Program – Detailed Project Schedule
Presenter: Brian Dietrick
December 22, 2016
A Detailed Project Schedule was developed by combining the SARCCUP Program Schedule, the CEQA Schedule, the Agreement Schedule, and various edits from the agencies.
Performance Reporting
2015 2016 2017 2018 2019 2020 2021 2022
2017 2018 2019 2020 2021 PL
AN A
Agreement CEQA Permitting
Pipelines – Preliminary Pipelines - Final
Wells – Prelim.
Wells - Final
Channels - Preliminary
Grant Contract Watershed Master Plan
Construction
Selection
Channels - Final
Design
Report
IEUA Conjunctive Use Project
2017 2018 2019 2020 2021 PL
AN A
Agreement CEQA Permitting
Pipelines – Preliminary Pipelines - Final
Wells – Prelim.
Wells - Final
Channels - Preliminary
Grant Contract Watershed Master Plan
Construction
Selection
Channels - Final
Design
Report
float
IEUA Conjunctive Use Project
2017 2018 2019 2020 2021 PL
AN A
Agreement CEQA Permitting
Pipelines – Preliminary Pipelines - Final
Wells – Prelim.
Wells - Final
Channels - Preliminary
Grant Contract Watershed Master Plan
Construction
Selection
Channels - Final
Design
Report
PLAN
B
Construction Final Design
CEQA Grant award = $15.7M Option 1: Reallocate $; decrease match Option 2: Add new facilities Option 3: Extend grant schedule
float
Permitting
IEUA Conjunctive Use Project
Preliminary Design
2017 2018 2019 2020 2021 PL
AN A
Agreement CEQA Permitting
Pipelines – Preliminary Pipelines - Final
Wells – Prelim.
Wells - Final
Channels - Preliminary
Grant Contract Watershed Master Plan
Construction
Selection
Channels - Final
Design
Report
PLAN
B
Construction Final Design
CEQA Grant award = $15.7M Option 1: Reallocate $; decrease match Option 2: Add new facilities Option 3: Extend grant schedule
float
Permitting
IEUA Conjunctive Use Project
Preliminary Design
Decision Window
2017 2018 2019 2020 2021
CEQA Permitting
Mt. Ave - Final Drilling – Prelim.
Drilling - Final
Grant Contract Watershed Master Plan
Construction
Selection
Design
Report
float
EMWD Conjunctive Use Project Land Purchase
Mt. Ave – Prelim.
Equipping – Prelim.
Equipping - Final
Mountain Avenue
Well Drilling
Well Equipping
IEUA Decision Window Agreements
2017 2018 2019 2020 2021
CEQA
Permitting
Grant Contract Watershed Master Plan
Construction
Selection
Design
Report
float
OCWD Arundo Removal Project
IEUA Decision Window Agreements
2017 2018 2019 2020 2021
CEQA
Permitting
Grant Contract Watershed Master Plan
Construction
Selection
Design
Report
float
SBVMWD Conjunctive Use Project Land Purchase
SBVMWD Habitat Restoration Project CEQA
Permitting*
Construction
Design
* No task currently included for permitting.
IEUA Decision Window Agreements
2017 2018 2019 2020 2021
CEQA
Permitting
Drilling – Prelim.
Drilling - Final
Equipping – Prelim.
Equipping - Final
Grant Contract Watershed Master Plan
Construction
Selection
Design
Report
float
WMWD Conjunctive Use Project Land Purchase
Well Drilling
Well Equipping
IEUA Decision Window Agreements
2017 2018 2019 2020 2021
Agreements
Grant Contract
Construction
SAWPA Conservation Project
Program Management
Quarterly Reporting
Conservation Rates - Outreach
Conservation Rates - Implementation
OCCK Smartscape - Implementation
IEUA Decision Window
Santa Ana River Conservation and Conjunctive Use Program – Detailed Project Schedule
Presenter: Brian Dietrick
December 22, 2016
Santa Ana River Conservation and Conjunctive Use Program (SARCCUP) Decision-Support Model
DSM Overview
December 22, 2016
2
Presentation Outline
• SARCCUP DSM Goals and Objectives
• DSM Overview
– Model overview
– System Representation
– SARCCUP Operations
– Optimization Approach
– User-Interface
• SARCCUP Scenarios
• SARCCUP Preliminary Modeling Results
• Uncertainties and Future Work
3
Goals and Objectives
• Maximize the storage of wet year imported water supplies to produce “dry year yield”
• Simulate operations and demonstrate the aggregate yield and water supply reliability generated by the SARCCUP
• Decision Support Model to simulate anticipated operations of the proposed SARCCUP facilities, identify constraints and facilities,
• Optimize operations and quantify the benefits and costs
4
Decision Support Model Overview
• GoldSim Modeling Platform
• System Description
• System Operations
– Future Agency Water Supplies and Demands
– Availability of Supply for SARCCUP
– Timing of SARCCUP Extraction
– Recharge and Extraction (put/take)
– Groundwater Storage and Accounting
– SARCCUP Deliveries
• Cost and Optimization Approach
5
SARCCUP DSM System Representation
• Simplified network of system includes:
– Service areas for SBVMWD, IEUA, EMWD, WMWD, and OCWD
– Imported and local supplies
– Demands
– Groundwater basins
– Regional conveyance
– Recharge and extraction facilities
– Proposed SARCCUP facilities
6
Projection of Future Baseline Water Supply and Demands
• Data collected from 2015 UWMPs for each agency
• Mostly reconciled with additional agency review
• Supply in excess of demands was assumed not needed – imported supply decreased
7
Available Supply for SARCCUP
• SBVMWD demands for SWP water are assumed to be 30-40 TAF
• SWP allocation above this amount is potentially available for SARCCUP
• Hydrological-climatological conditions for water years 1922-2003 are assumed consistent with the CALSIM II simulation period
• Delta and SWP transfer supply conveyance derived from the CALSIM II studies and an offline Delta transfer analysis tool
• Assumes no competing Wet and Above Normal year transfers
Two Sources of Supply Available (Wet Year Supplies)
SWP Transfer Market Purchase
Surplus SBVMWD SWP Supply
SARCCUP Supply
8
Estimated Water Supply Potentially Available for SARCCUP
0
20
40
60
80
100
120
140
160
180
200
19
22
19
25
19
28
19
31
19
34
19
37
19
40
19
43
19
46
19
49
19
52
19
55
19
58
19
61
19
64
19
67
19
70
19
73
19
76
19
79
19
82
19
85
19
88
19
91
19
94
19
97
20
00
20
03
An
nu
al W
ater
Su
pp
ly (
tho
usa
nd
acr
e-f
eet)
Estimated Water Supply Potentially Available for SARCCUP
SBVMWD Estimated Surplus Avail for SARCCUP Sacramento Valley Transfer
Average Annual Available Supply in Wet/Above Normal Years SBVMWD Surplus = 38 TAF (20-58 TAF) Sacramento Transfer = 52 TAF (0-141 TAF)
9
SARCCUP Recharge
• Recharge of SARCCUP GW bank a function of:
– Recharge capacity
– Available GW bank storage
• Water conveyed to specific GW basin as a function of:
– Recharge cost
– Current storage in SARCCUP bank
• Recharge divided equally among 5 agencies in each GW basin
• “Basin management factor” estimated at 5% of recharge volume
Imported Supply Available to
SARCCUP
10
SARCCUP Extraction
• SARCCUP extraction designed to operate as a dry-year yield program
– Extractions are linked to MWD Allocation years (consistent with MWD’s extraordinary supply definition)
• Limited by extraction capacity in each specific basin
• Agency will use lowest cost source first
• Stored water exchanges will trigger to ensure agency is tapping the least cost source
• In-lieu exchanges of imported water triggered based on storage levels in specific basins and agency target
11
0
20000
40000
60000
80000
100000
120000
140000
160000
180000
200000
220000
240000
260000
280000
1930 1940 1950 1960 1970 1980 1990 2000
Inflow
s,
Outf
low
s,
Dem
and (
AF
)
Time
0
1000000
2000000
3000000
4000000
Sto
rage o
r A
llocation (
AF
)
MWD Allocation Summary
Baseline
Inflows Outflows MWD Storage MWD_Allocation
Example Scenario of Estimated MWD Allocation (REVISING FIGURE integrate with previous slide)
Allocation
Allocation Allocation Allocation
Allocation
12
Example SARCCUP Recharge and Extraction Operation
13
Groundwater Storage and Accounting • Maximum SARCCUP storage capacity of 180,000 AF
• Both “Integrated” and “Basin Specific” SARCCUP accounts
• Each SARCCUP agency can track amount AND location of stored water
Explicit accounting and tracking of multiple SARCCUP banks and storages accounts. Need in lieu exchanges in order to deliver all SARCCUP supply.
Recharge basins recharge all accounts in GW Basin
SBBA Chino
Elsinore San Jacinto
OCWD Demand
Storage exchange
• Dual Use ASR wells • Temescal creek • SAR
• South Pressure Zone Extraction Wells
• SAR
• SBBA Extraction Wells • 48 in pipe • Devil Canyon –Azuza Pipe • Yorba Linda Feeder
Storage Exchange
OCWD
WMWD
IEUA
SBVMWD
EMWD
SARCCUP Virtual Bank Sum of all accounts (up to 180,000 af)
OCWD Demand
SARCCUP Integrated Account SARCCUP Basin Specific Accounts
14
Delivery of SARCCUP Stored Water
• Three types of delivery mechanisms
– Direct Delivery – Physical movement of water from basin to agency ($$$)
– Storage Exchange – Simple exchange, or “re-coloring”, of water in storage ($)
– In-lieu Exchange – Exchange of non-SARCCUP supply from one agency to SARCCUP supply of another agency ($$)
Exchanges
15
Connections for Direct Delivery
Elsinore GW Basin Chino GW Basin SBBA GW Basin San Jacinto GW Basin
OCWD
Dual use ASR wells to
Temescal Creek to
SAR
South Pressure Zone
Extraction Wells to
SAR
SBBA Extraction Wells
48 inch baseline feeder
extension
Devil Canyon –Azuza Pipe
Yorba Linda Feeder or SAR
San Jacinto Extraction Wells
CRA or San Jacinto creek
Dual use ASR wells
Temescal creek
SAR
WMWD Dual use ASR wells Chino DesalterRPU Wells unused
capacity/West Riverside
Canal
CRA or San Jacinto Creek
San Jacinto Extraction Wells
Potable pipe network
IEUA x
South Pressure Zone
Extraction Wells, Member
Agency Wells
SBBA Extraction Wells
48 inch baseline feeder
extension
x
SBVMWD x48 inch baseline feeder
extension
SARCCUP Wells
RPU Wells
MWDSC Inland Feeder
x
EMWD x x
Alabama Pipe
Central Feeder
Inland Feeder
San Jacinto Extraction Wells
SARCCUP projects:
Dual use ASR wells
Southe Pressure Zone Extraction Wells
48 inch baseline feeder extension
SBBA extraction wells
Alabama st. pipeline/Redlands PS
San Jacinto Extraction wells
From Agency System/GW Basin
To S
AR
CC
UP
Age
ncy
16
Groundwater Storage and Accounting
• Storage targets set for each agency in each basin based on cost optimization
• Storage exchanges will occur to attempt to achieve “optimal” storage balancing for each agency
Groundwater Basin
Wat
er A
gen
cy
17
Optimizing Operations of SARCCUP
• Objective
– Minimize net cost of delivery of SARCCUP supply to agencies
• SARCCUP Costs
– Cost of Purchased Supply +
– Cost of Recharge Conveyance +
– Cost of Recharge +
– Cost of Extraction +
– Cost of Delivery Conveyance or Wheeling +
– Cost of Exchanges
Total SARCCUP Cost / Total SARCCUP Deliveries
= SARCCUP Unit Cost
(or postage stamp rate)
18
Cost Assumptions
• Supply Costs:
– Sacramento Valley Water Purchases
• To SBVMWD @ $400/AF
• Through MWD wheeling rate $750/AF
– SBVMWD Surplus @ MWD Tier 1 Rate, $666/AF
• Recharge Costs:
– Varies by Basin, $30-120/AF
• Extraction Costs:
– Varies by Basin, $70-225/AF
• Delivery Costs:
– Varies by source/delivery point; $40-400/AF
• Exchange Costs:
– Storage exchanges @ $0/AF
– In-lieu @ $313/AF (treatment surcharge for WMWD)
19
Optimization through Rule-Based Criteria
• Optimization through Rule-Based Criteria
– Rules with variable criteria (target storage levels) are established … and optimized
– Similar to development of “reservoir rule curves”
• Storage Rule Curves
– Target SARCCUP bank storage distribution for each agency
– Threshold bank volume that will trigger storage exchanges
– Threshold bank volume that will limit storage exchanges
• GoldSim optimization methods to identify range of “optimal rule curves” to minimize SARCCUP unit cost
20
Model Dashboards – The User Interface
21
Modeling Scenarios Developed to Address Specific Questions
• What is the cost of SARCCUP water and how does it compare to the cost of water without SARCCUP?
• How does the California Water Fix impact SARCCUP?
• Where are the “bottlenecks” in SARCCUP, if any? What recharge/extraction facilities would be required to alleviate specific bottlenecks?
• Where in the watershed does extra recharge or extraction capacity exist without new facilities?
• What facilities would be needed to increase the storage capacity to _____ AF and the dry year yield to _____ AFY?
• What if OCWD were to only receive treated wastewater via the SAR? Would that stretch water supplies and reduce costs in the watershed?
22
Major Assumptions of SARCCUP Scenarios
• Baseline
– No SARCCUP, existing imported supply reliability
• Scenario 1 – SARCCUP under Existing Conditions
– SARCCUP operations, existing Delta infrastructure and regulations,
• Scenario 2 – SARCCUP with California Water Fix
– SARCCUP operations, CWF infrastructure and regulations,
• Scenario 3 – SARCCUP with Climate Change
– SARCCUP operations, future climate change around mid-century
• Scenario 4 – SARCCUP with recycled water exchanges to OCWD
– SARCCUP operations, IEUA delivers recycled water to OCWD in exchanges for OCWD’s SARCCUP groundwater supply in Chino
23
$-
$500
$1,000
$1,500
$2,000
$2,500
$3,000
Baseline - No SARCCUP Scenario 1 - ExistingConditions with SARCCUP
Scenario 2 – SARCCUP with California Water Fix
Scenario 3 - SARCCUP underClimate Change
Scenario 4 - SARCCUP withRecycled Water Exchanges to
OCWD
Un
it W
ater
Del
iver
y C
ost
s ($
/AF)
Treated Water Delivery Costs with SARCCUP
SARCCUP Cost MWD Tier 1 (0-100%) MWD Tier 2 (0-100%) MWD Penalty Rate (100-115%)
Preliminary SARCCUP Cost Results (Treated) What is the cost of SARCCUP water and how does it compare to the cost of water without SARCCUP? How does the California Water Fix impact SARCCUP?
MWD Penalty Rate (100-115%)
MWD Tier 2 Rate
MWD Tier 1 Rate
With SARCCUP
Without SARCCUP
24
SARCCUP Facility Usage (in progress) Where are the “bottlenecks” in SARCCUP, if any? What recharge/extraction facilities would be required to alleviate specific bottlenecks? Where in the watershed does extra recharge or extraction capacity exist without new facilities?
• Recharge facility usage
– Surplus recharge capacity exists in many basins, especially SBBA and Chino
– Only San Jacinto Basin recharge approaches capacity limits
• Extraction facility usage
– Surplus extraction capacity exists in SBBA and Elsinore basins
– Chino and San Jacinto extraction capacities are fully utilized, but are sufficient to manage delivery under current sized SARCCUP bank
– Extraction capacity will likely limit operation of a larger SARCCUP bank
• Conveyance facility usage
– Regional conveyance does not appear to limit operations
– Further evaluation of available capacity is warranted
25
Can SARCCUP Facilitate use of Reuse of Water Supplies in Upper Watershed
• In progress
26
Uncertainties and Future Work
• Uncertainties
– Cost
• Purchase cost of wet and above normal year Sacramento Valley transfer supply
• Future of MWD penalty rate tiers and enforcement
– Operations
• MWD allocation timing and frequency based on simplified model
• Some recharge, extraction, and conveyance capacities have not been confirmed
• Future Work
– Refine scenarios and assumptions ??
– Documentation
– Support model for Master Plan
Santa Ana River Conservation and Conjunctive Use Program
(SARCCUP) Demonstration Project
Meeting with MWD Staff
October 25, 2016
Proposed Meeting Agenda
• Introductions and Purpose of Meeting
• Recap of SARCCUP Demonstration Project meeting of August 30, 2016
• Revised proposal from SARCCUP agencies in response to MWD’s Comments on August 30, 2016
– Sources of supply for SARCCUP
• SBVMWD State Project water
• Chino Basin surplus stored water
– SARCCUP agencies’ in-lieu recovery
• Shortage allocation periods – MWD SARCCUP agencies
• SBVMWD recovery
– Proposed MWD Call provisions
• Recovery costs
• Replacement water provisions
– Updated List of Benefits to MWD
• Comments and questions on revised proposal
– MWD response to draft Terms & Conditions
• Schedule and process to move agreement forward
• Action items/next steps 2
Proposed Water Supply Sources
Sources Conceptual Proposal
Surplus SWP supplies from SBVMWD*
• Sold to MWD under SBVMWD/MWD contract. • SARCCUP agencies purchase from MWD for storage at
Tier 1 untreated rate in effect at time of delivery; not subject to RTS or Capacity Charge.
• Amount of water for purchase by SARCCUP agencies. based on sliding scale - linked to available bank capacity
• Water not purchased by SARCCUP agencies available to MWD for use in MWD service area.
Non-SWP supplies wheeled through MWD system*
• MWD agencies pay MWD prevailing wheeling rate.
Chino Basin Water purchased by SARCCUP agencies through IEUA**
• Pumped from Chino Basin, reduced MWD delivery to IEUA.
• Prevailing untreated rate paid to MWD from IEUA. • MWD delivers equivalent amount to SARCCUP agency.
3
* Treated as Extraordinary Supply if produced during Allocation ** Subject to Extraordinary Supply certification by MWD
Preliminary – For Discussion Purposes
Surplus SWP Supplies from SBVMWD
SARCCUP/MWD Purchase Priority
• The maximum amount of SBVMWD SWP water available for purchase by the SARCCUP agencies would be based upon the available combined storage capacity in the SARCCUP program in the year of purchase, as follows:
4 Preliminary – For Discussion Purposes
Amount of Storage Capacity Available in
SARCCUP Program
Maximum amount available for purchase by SARCCUP Agencies1
Minimum amount available for purchase
and use by MWD
120,000 AF or more 70% 30%
60,000 AF – 120,000 AF 50% 50%
60,000 AF or less 30% 70%
1Any amount not purchased by SARCCUP would be made available to MWD.
Proposed Metropolitan SARCCUP Program Call Provisions
Call Provisions
• MWD can call all water in storage in SARCCUP MWD member agencies’ facilities in a given year, up to the maximum take capacity of 40,000 af/yr.
‒ Take capacity available to MWD subject to overlying demands and water quality requirements for imported water for SARCCUP agencies or agencies pumping the called water
• MWD’s call would be “second priority” to SARCCUP agencies’ use of take capacity.
5 Preliminary – For Discussion Purposes
Proposed Metropolitan SARCCUP Program Call Provisions
Call Provisions - cont’d
• Called water by MWD would be subject to the following charges:
– The annually determined SARCCUP variable recovery rate (actual pumping costs);
– A proportionate fixed per acre-foot capital facilities reimbursement charge; and
– A loss factor based upon the equivalent cost of water to satisfy required management and loss compensation for storage facilities in each basin (currently being proposed at 5%)
6 Preliminary – For Discussion Purposes
Proposed Metropolitan SARCCUP Program Call Provisions
Call Provisions – cont’d
• MWD would replace SARCCUP agencies’ called water in future years with surface deliveries, when requested.
‒ Replacement surface water delivered at no cost to the SARCCUP agencies and would be classified in the same manner as when called by MWD (i.e., local or Extraordinary Supply).
‒ MWD would pay the following costs associated with the replaced water:
‒ The annually determined variable recharge rate (actual recharge or injection costs); and
‒ A proportionate fixed per acre-foot capital facilities reimbursement charge
7 Preliminary – For Discussion Purposes
Recovery of Supplies from SARCCUP Project
MWD Shortage Allocation Period • SARCCUP agencies would be provided “in-lieu” exchange
delivery capabilities through MWD’s system during Shortage Allocation periods:
‒ Stored full service water previously purchased from MWD
‒ Surplus SBVMWD SWP supplies
‒ Non-SWP wheeled water
‒ Chino Basin water
• In-lieu exchanges:
‒ Would not cause incremental additional Capacity Charges, RTS or Tier 2 obligations.
‒ Accounted appropriately to receiving agencies under shortage allocations.
8 Preliminary – For Discussion Purposes
Other Terms & Conditions
• Implementation of the Phase I Demonstration Project by the SARCCUP agencies is subject to necessary approvals by the MWD SARCCUP agencies’ retail groundwater producers and/or court appointed Watermasters
• MWD will work with the MWD SARCCUP agencies, where appropriate, to determine the need for modifications to existing Dry Year Yield (DYY) or other similar programs to maximize the benefits of those programs and SARCCUP
• Should MWD’s rate structure change in the future, MWD and the MWD SARCCUP agencies would work in good faith to update the program agreement, as needed, to reflect rate structure changes in a manner that maintained the original SARCCUP program benefits to the agencies
9
Proposed Benefits to SARCCUP Agencies
• Increases SWP supplies for the SARCCUP agencies through MWD facilitation as a SWP contractor.
• Provides access to additional Extraordinary supplies during shortage allocations:
‒ SBVMWD SWP, Chino Basin supplies, other non-MWD supplies
• MWD in-lieu exchanges during an Allocation Period provides expanded project delivery options for SARCCUP agencies.
• Exchanges reduce operating costs and SARCCUP agencies’ system capacity requirements.
10 Preliminary – For Discussion Purposes
Proposed Benefits to Metropolitan Water District • Results in additional SWP supplies for the MWD service area.
• Provides MWD access to up to 120,000 af of stored water and up to 40,000 af/yr of dry-year yield with no up-front capital investment.
• Allows MWD to purchase lower cost SBVMWD SWP water and sell to SARCCUP and other MWD member agencies at prevailing rates.
• Provides that all program water is purchased and/or wheeled at MWD’s prevailing rates and in a manner consistent with MWD adopted policies.
• Increases dedicated drought storage space in major Southern California groundwater basins.
• Improves MWD’s water system resiliency (storage south of major fault lines).
• Engages MWD in a partnership with member agencies and other local water suppliers to improve conjunctive management of surface and ground water. 11 Preliminary – For Discussion Purposes