santa ana river conservation and conjunctive use program ... · santa ana river conservation and...

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



Wells – Prelim.

Wells - Final



Construction

Selection

Channels - Final

Design

Report

float


2017 2018 2019 2020 2021 PL

AN A



Wells – Prelim.

Wells - Final



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


Preliminary Design

2017 2018 2019 2020 2021 PL

AN A



Wells – Prelim.

Wells - Final



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


Preliminary Design

Decision Window

2017 2018 2019 2020 2021

CEQA Permitting

Mt. Ave - Final Drilling – Prelim.

Drilling - Final


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


Construction

Selection

Design

Report

float

OCWD Arundo Removal Project


2017 2018 2019 2020 2021

CEQA

Permitting


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.


2017 2018 2019 2020 2021

CEQA

Permitting

Drilling – Prelim.

Drilling - Final

Equipping – Prelim.

Equipping - Final


Construction

Selection

Design

Report

float

WMWD Conjunctive Use Project Land Purchase

Well Drilling

Well Equipping


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

http://www.goldsim.com/

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


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


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

http://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&uact=8&ved=0ahUKEwiIjdydhu7KAhUU_mMKHRMeAwcQjRwIBw&url=http://www.wmwd.com/forms.aspx?FID%3D104&bvm=bv.113943164,d.cGc&psig=AFQjCNEhsTP_e_qEG6_qX2I-VzlwaTptiA&ust=1455222987938243

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.



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%)



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


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.


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.


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

santa ana river conservation and conjunctive use program ... · santa ana river conservation and...

Documents