HomeMy WebLinkAbout2019-055 - Approving the Water Supply Assessmentjmf 6/10/19
RESOLUTION NO. 2019-055
A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF
SANTA ANA APPROVING THE WATER SUPPLY
ASSESSMENT FOR THE PROPOSED ELAN MIXED -USE
PROJECT LOCATED AT 1660 EAST FIRST STREET
WHEREAS, in accordance with California Water Code Sections 10912(a)(1) and
10912(a)(6), any development that is proposing a mixed -use project that includes a
proposed residential development of more than 500 dwelling units requires the
preparation and approval of a water supply assessment; and
WHEREAS, the proposed Elan Mixed -Use Project located at 1660 East First Street
is proposing development of a mixed -use project including 603 residential dwelling units;
and
WHEREAS, the proposed Elan Mixed -Use Project therefore requires the
preparation and approval of a water supply assessment pursuant to California Water
Code Sections 10910 and 10912; and
WHEREAS, the City of Santa Ana is the public water system that currently supplies
and will supply water to the proposed Elan Mixed -Use Project; and
WHEREAS, the projected water demand associated with the proposed Elan
Mixed -Use Project was accounted for in the City of Santa Ana 2015 Urban Water
Management Plan; and
WHEREAS, the Water Supply Assessment for the Elan Mixed -Use Project has
been prepared; and
WHEREAS, the findings from the Water Supply Assessment prepared for the Elan
Mixed -Use Project show that there is sufficient water supply available for the proposed
Elan Mixed -Used Project during normal, single -dry, and multiple dry years within a 20-
year projection to meet the projected water demand of the Project in addition to the
demand of existing and other planned future uses, including, but not limited to, agricultural
and manufacturing uses.
NOW, THEREFORE, BE IT RESOLVED by the City Council of the City of Santa
Ana as follows:
Section 1. The Water Supply Assessment for the Elan Mixed -Use Project is
hereby approved, a copy of which is attached as Exhibit A and will be on file at the offices
of the Public Works Agency of the City for public inspection.
Resolution No. 2019-055
Page 1 of 4
Section 2. Approval of the Water Supply Assessment by the City does not
constitute a "will -serve" or in any way entitles the Elan Mixed -Use Project to water service
or to any right, priority or allocation in any supply, capacity or facility.
Section 3. Approval of the Water Supply Assessment shall not affect the City of
Santa Ana's obligation to provide service to its existing customers or any potential future
customers, including this Elan Mixed -Use Project.
Section 4. This Resolution shall take effect immediately upon its adoption by
the City Council, and the Clerk of the Council shall attest to and certify the vote adopting
this Resolution.
ADOPTED this 2nd day of July, 2019.
APPROVED AS TO FORM:
Sonia R. Carvalho, City Attorney
By:•1~42—
J n M. Funk
Assistant City Attorney
AYES: Councilmembers
NOES: Councilmembers
ABSTAIN: Councilmembers
NOT PRESENT: Councilmembers
Ward 4 representative vacant.
Resolution No. 2019-055
Page 2 of 4
,_W_
.V ..
Mayor
Iglesias Penaloza Pulido Sarmiento, Solorio,
Villegas (6)
None (0)
None (0)
None (0)
CERTIFICATION OF ATTESTATION AND ORIGINALITY
I, NORMA MITRE, Acting Clerk of the Council, do hereby attest to and certify the attached
Resolution No. 2019-055 to be the original resolution adopted by the City Council of the
City of Santa Ana on July 2, 2019.
Date: g oly
Norma Mitre
Acting Clerk of the Council
City of Santa Ana
Resolution No. 2019-055
Page 3 of 4
Refer to Laserfiche for
Exhibit A: Water Supply Assessment
for the Elan Mixed -Use Project
Resolution No. 2019-055
Page 4 of 4
*20M`ING
ENGINEERING
WATER SUPPLY ASSESSMENT
City of Santa Ana
County of Orange, California
Prepared For
Santa Anna First Street, LLC
5120 Shoreham Place, #150
San Diego, CA 92122
858.535.1475
Prepared By
Fuscoe Engineering, Inc.
16795 Von Korman, Suite 100
Irvine, California 92606
949.474.1960
www.fuscoe.com
Project Manager:
Josh Ruiz
Date Prepared: November 2, 2017
CITY OF SANTA ANA
Elan P
WATER
PPLY ASSESSMENT
ORANGE COUNTY, CALIFORNIA
PREPARED FOR:
SANTA ANNA FIRST STREET, LLC
5120 Shoreham Place, #150
San Diego, CA 92122
858.535.1475
PREPARED BY:
FUSCOE ENGINEERING, INC.
16795 Von Korman, Suite 100
Irvine, CA 92606
949.474.1960
www.fuscoe.com
DATE PREPARED: NOVEMBER 2, 2017
ELAN PROJECT
WATER SUPPLY ASSESSMENT
TABLE OF CONTENTS
NOVEMBER 2, 2017
1.
WSA PURPOSE AND BACKGROUND ............................................ 4
2.
INTRODUCTION
6
.....................................................................
2.1
Project Description.............................................................................................6
2.1
.1 Existing Water Use......................................................................................8
2.1
.2 Proposed Water Use.................................................................................10
3.
REGIONAL WATER SUPPLIES AND DEMANDS ..............................
12
3.1
City Water Supplies.........................................................................................12
3.2
City Water Demands.......................................................................................18
4.
REGIONAL WATER SUPPLY RELIABILITY ......................................
20
4.1
Metropolitan Water District regional water supply reliability.................................20
4.2
OCWD and City of Santa Ana Local Water supply reliability................................21
5.
CONCLUSION
27
.....................................................................
6.
REFERENCES........................................................................28
7.
TECHNICAL APPENDICES........................................................
29
LIST OF FIGURES
Figure1 Vicinity Map.......................................................................................................7
Figure 2 Existing Land Use Aerial......................................................................................9
Figure 3 Proposed Elan Site Plan....................................................................................I I
FUSCOE ENGINEERING, INC. I
ELAN PROJECT
WATER SUPPLY ASSESSMENT
LIST OF TABLES
NOVEMBER 2. 2017
Table 1 Project Home Type Details...................................................................................6
Table 2 Existing Water Demands......................................................................................8
Table 3 Proposed Water Demands.................................................................................1 C
Table 4 City of Santa Ana Connections to Metropolitan Facilities.......................................12
Table 5 2015 Projected and Actual Water Supply and Demand (Acre-feet).........................13
Table 6 City of Santa Ana Groundwater Production Data 2015-16...................................15
Table 7 City of Santa Ana Projected Total Water Demands...............................................19
Table 8 Metropolitan Multiple Climate Scenario Water Supply Capability and Projected
Demands Comparison from 2020-2040 (AF)..................................................................21
Table 9 City of Santa Ana Multiple Climate Scenario Water Supply and Demand Comparison
from2020-2040(AF)....................................................................................................23
Table 10 City of Santa Ana Ability to Supply the Elan Project.............................................25
LIST OF APPENDICES
Appendix A — Proposed Project Water Demand Calculations
Appendix B — City of Santa Ana Landscape Guidelines
Appendix C — SGRMA Basin 8-1 Alternative Plan
FUSCOE ENGINEERING, INC.
ELAN PROJECT
WATER SUPPLY Ass ESSMENT
ACRONYMS & ABBREVIATIONS
AF Acre -Feet
AFY Acre -Feet per Year
BEA
Basin Equity Assessment
BPP
Basin Production Percentage
CDR
Center for Demographic Research
CEQA
California Environmental Quality Act
cfs
cubic feet per second
CRA
Colorado River Aqueduct
DU
Dwelling Unit
DWR
Department of Water Resources
GPCD
Gallons per Capita per Day
gpd
gallons per day
GWRS
Groundwater Replenishment System
LTFP Long Term Facilities Plan
M&I Municipal and Industrial
MG Million Gallons
OCWD Orange County Water District
QSA Quantification Settlement Agreement
RA Replenishment Assessment
SANDAG San Diego Association of Governments
SAR
Santa Ana River
SB
Senate Bill
SCAG
Southern California Association of Governments
SF
Square Feet
SWP
State Water Project
UWMP Urban Water Management Plan
WSA Water Supply Assessment
FUSCOE ENGINEERING, INC.
NOVEMBER 2, 201
ELAN PROJECT
WATER SUPPLY ASSESSMENT NOVEMBER 2, 2017
1 . WSA PURPOSE AND BACKGROUND
This Water Supply Assess ment (WSA) was prepared for Santa Anna First Street, LLC as the project
sponsor/applicant, and the City of Santa Ana ("City' or "Santa Ana") as the lead agency under
the California Environmental Quality Act (CEQA), by Fuscoe Engineering, Inc. (Fuscoe), as the
consultant, regarding the Elan Project ("Elan" or "Project"). This study is a requirement of
California law, specifically Senate Bill 610 (referred to as SB 610). SB 610 is an act that
amended Section 21 151 .9 of the Public Resources Code, and Sections 10631, 10656, 10910,
10911, 10912, and 10915 of the Water Code. SB 610 repealed Section 10913, and added
and repealed Section 10657 of the Water Code. SB 610 was approved by the Governor and
filed with the Secretary of State on October 9, 2001, and became effective January 1, 2002.
Under SB 610, WSAs must be furnished to local governments for inclusion in environmental
documentation for certain projects (as defined in Water Code 10912 [a]) subject to CEQA. Due
to increased population, land use changes and water demands, this water bill seeks to improve
the link between information on water availability and certain land use decisions made by cities
and counties. SB 610 takes a significant step toward managing the demand of California's
water supply as it provides regulations and incentives to preserve and protect future water needs.
The intent of this bill is to coordinate local water supply and land use decisions to help provide
California's cities, farms, and industrial developments with adequate water supplies.
With the introduction of SB 610, any project under CEQA shall provide a WSA if the project
meets the definition of the Water Code Section 10912. "Project" means any of the following:
• A proposed residential development of more than 500 dwelling units.
• A proposed shopping center or business establishment employing more than 1,000 persons
or having more than 500,000 square feet of floor space.
• A proposed commercial office building employing more than 1,000 persons or having more
than 250,000 square feet of floor space.
• A proposed hotel or motel, or both, having more than 500 rooms.
• A proposed industrial, manufacturing, or processing plant, or industrial park planned to house
more than 1,000 persons, occupying more than 40 acres of land, or having more than
650,000 square feet of floor area.
• A mixed -use project that includes one or more of the projects specified in this subdivision.
• A project that would demand an amount of water equivalent to, or greater than, the amount
of water required by a 500 dwelling unit project.
• If a public water system has fewer than 5,000 service connections, then "project" means any
proposed residential, business, commercial, hotel or motel, or industrial development that
would account for an increase of 10 percent or more in the number of the public water
system's existing service connections, or a mixed -use project that would demand an amount
of water equivalent to, or greater than, the amount of water required by residential
development that would represent an increase of 10 percent or more in the number of the
public water system's existing service connections.
After review of Water Code Section 10912, the Elan Project is deemed a "Project" because it
proposes a residential development of more than 500 dwelling units.
In addition, it is also necessary to include the recent passing (September 24, 2016) of Senate
Bill 1262 (Chapter 594) which acts to amend Section 66473.7 of the Government Code, and
FUSCOE tNGINEERING, INC.
ELAN PROJECT
WATER SUPPLY ASSESSMENT
NOVEMBER 2, 2017
to amend Section 10910 of the Water Code, relating to land use' and the Sustainable
Groundwater Management Act (SGMA) that was passed by California's Governor on
September 16, 2014. Pursuant to SB 1262, as of January 1, 2017, WSAs are now required
to include certain SGMA-related information if water supply for a proposed project includes
groundwater. Specifically, if a water supply for a proposed project includes groundwater, the
following additional information shall be included in the water supply assessment:
• A description of any groundwater basin or basins from which the proposed project will be
supplied.
• For those basins for which a court or the board has adjudicated the rights to pump
groundwater, a copy of the order or decree adopted by the courtor the board and a description
of the amount of groundwater the public water system, or the city or county if either is required
to comply with this part pursuant to subdivision (b), has the legal right to pump under the order
or decree.
• For a basin that has not been adjudicated that is a basin designated as high- or medium -
priority pursuant to Section 10722.4, information regarding the following:
o Whether the department has identified the basin as being subject to critical conditions
of overdraft pursuant to Section 12924.
o If a groundwater sustainability agency has adopted a groundwater sustainability plan
or has an approved alternative, a copy of that alternative or plan.
• For a basin that has not been adjudicated that is a basin designated as low- or very low priority
pursuant to Section 10722.4, information as to whether the department has identified the basin
or basins as overdrafted or has projected that the basin will become overdrafted if present
management conditions continue, in the most current bulletin of the department that
characterizes the condition of the groundwater basin, and a detailed description by the public
water system, or the city or county if either is required to comply with this part pursuant to
subdivision (b), of the efforts being undertaken in the basin or basins to eliminate the long-term
overdraft condition.
As described in more detail throughout this WSA, the proposed Project will utilize water from
the Orange County Groundwater Basin that is designated as a medium priority basin.
Therefore, additional information regarding groundwater supply and management will be
included in this WSA to satisfy the requirements of SB 1262.
' Senate Bill No. 1262, CHAPTER 594, found here:
hHp:Hleginfo.legislature.co.gov/faces/billTextClient.xhtml?bill id=201520160SB1262
FUSCOE ENGINEERING, INC.
ELAN PROJECT
WATER SUPPLY ASSESSMENT
2. INTRODUCTION
2.1 PROJECT DESCRIPTION
NOVEMBER 2, 2017
The Elan Project is a 6.4-acre residential and commercial project located in the City of Santa
Ana. The Project address is 1660 E. First Street, Santa Ana which is located north of E. Chestnut
Avenue, south of E. First St, east of S. Lyon St and west of Elk Ln next to the Santo Ana Zoo. See
Figure 1 for a vicinity map of the proposed Project. The proposed Project will replace an existing
hotel (Elks Lodge) and associated surface parking lot. The northern portion of the Project is
currently vacant.
The Project includes the development of two buildings with 601 residential units comprised of
21 studios, 280 one -bedroom apartments, 256 two -bedroom apartments and 43 three -
bedroom apartments. In addition, 9,519 sf of commercial space will be included that will
provide a live/work opportunity for some of the one -bedroom apartments.
The majority of the parking for the Project will be located within two (2) levels of subterranean
parking structures located below the two residential structures. Amenities of the Project include
fitness/yoga areas, an artist's gallery, a pet spa, courtyards and other lounging areas.
Approximately 56,730 SF of publicly accessible open space is provided through common areas
and courtyards. See Table 1 below for additional specifications related to the proposed Project.
Table 1 Project Home Type Details
Home Type
YP
Unit"
Count
Average Square
Footage S
Percentage of
Total Unit Count
parldng
Studios
21
576
4%
Parking Garage
One -bedrooms
280
776
47%
Parking Garage
Two -bedrooms
256
1,078
43%
Parking Garage
Three -bedrooms
43
1,303
7%
Parking Garage
Total
601
935
100%
Parking Garage
Notes:
As mentioned, the purpose of this WSA is to provide information to confirm that the City of
Santa Ana has sufficient water supply to provide for the proposed Project in addition to other
service area demands now and into the future. This WSA compares the existing water demand
of the Project site to the proposed water demand of the Project and to the City of Santa Ana
regional water supplies and demands through 2040.
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ELAN PROJECT
WATER SUPPLY ASSESSMENT
2.1.1 Existing Water Use
NOVEMBER 2, 2017
As mentioned, the existing land use of the Project is vacant at the northern portion of the Project
with an existing hotel and parking at the middle and southern portions. The Elks Lodge area in
the center of the site covers a footprint of approximately 86,000 sf. The Elks Lodge structures
cover approximately 50,000 SF and has approximately 20,000 SF of existing landscaping. See
Figure 2 for an aerial image of the existing land uses at the proposed Project site.
The water demand factors from the City of Santa Ana Design Guidelines for Water and Sewer
Facilities (March 2017)2 were utilized to establish an estimate of existing water demands at the
Project site. A commercial water demand factor of 2,500 gallons per day (gpd) per acre was
employed to account for Elks Lodge at the existing Project site. In addition, a landscape water
demand factor of 3,000 gpd/acre was employed for the scattered landscaping at the Project
site. See Table 2 below for estimated existing water demands and the Project site.
Table 2 Existing Water Demands
6dsNng Land
Land Use
Square
band Use
Water Demand Fodor
ELdsting Water
E)dsflng Water
Use
Footage
Acreage
(gpd acre) "
Demand
(gpd)
Demand (AFY)
Elks Lodge
50,000
1.15
2,500
2,875
3.22
Landscaped
Area
20,000
0.46
3,000
635
0.71
Total
70,000
1.61
3,510
3.93
Notes:
d gallons per day AFY acre-feet per year
As shown above, the estimated existing water use at the Project site is approximately 3,510
gallons per day (gpd) or 3.9 acre-feet per year (AFY). An estimated annual difference between
existing water demands and proposed water demands resulting from the proposed Project are
calculated and shown in Section 2.1.2 below.
2 City of Santa Ana Design Guidelines for Water and Sewer Facilities (March 2017). Found here:
htip://www.santo-ano.org/pwa/documents/DesignGuidelines.pdf
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ELAN PROJECT
WATER SUPPLY ASSESSMENT
2.1.2 Proposed Water Use
NOVEMBER 2, 2017
As mentioned, the proposed Project includes a total of 601 residential units comprised of 22
studios, 280 one -bedroom apartments, 256 two -bedroom apartments and 43 three -bedroom
apartments. Amenities include fitness/yoga areas, an artist's gallery, a pet spa, courtyards and
other lounging areas. In addition, 9,519 sf of commercial space will be included that will
provide a live/work opportunity for some of the one -bedroom apartments. Approximately
56,730 SF of open space is provided through common areas and the court yards. See Figure
3 below for the proposed site plan for the Project.
Total Project residential water demands include estimates of both indoor and outdoor water
demands. Indoor water demands include toilet -flushing, showers, baths, dishwashers, washing
machines, faucets, and leakage. Outdoor water demands include landscape irrigation
estimates. The estimates for residential water demands were developed by following the City of
Santa Ana Design Guidelines for Water and Sewer Facilities (March 2017).
Table 3 Proposed Water Demands
Land Use
Unit Water
Persons per DU
Project DU
Daily Water Usage
Annual
Type
Demand'
Assumption
or acreage
(gad)
Water Usage
Studios
120
gpd/capita
22 DU
3,353
3.8
One-
bedrooms
120
ca
gpd/capita
1 72
280 DU
57,792
64.7
Two-
bedrooms
120
ca
gpd/capita
2.89
256 DU
88,781
99.5
Three-
bedrooms
120
gpd/capita
3.80
43 DU
19,608
21.0
Commercial
2,500
gpd/acre
9,519 sf
(0.22 acres)
546
0.6
Landscaped
3,000
56,730 sf
Areas
gpd/acre
(1.30 ac)
3,900
4.4
TOTAL PROJECT WATER DEMAND
601 RESIDENTIAL UNITS
173,984 glad
194.9 AFY
Notes
City of Santa Ana Design Guidelines for Water and Sewer Facilities (March 2017).
2 Modified US Census Assumptions — Utilized from Herita e Mixed Use Project in Santa Ana (July 2015
As shown, the proposed Project will have an annual water demand of approximately 195 AFY.
This is an increase of approximately 191 AFY as compared to the existing water demands at the
Project site. The following sections evaluates the ability for the City to meet the proposed
increase in water demands.
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ELAN PROJECT
WATER SUPPLY A55ESSMENT NOVEMBER 2, 2017
3. REGIONAL WATER SUPPLIES AND DEMANDS
3.1 CITY WATER SUPPLIES
The City's water supply comes from a combination of imported water, local groundwater and
recycled water to satisfy water demands. The City purchases these water supplies from
Metropolitan Water District of Southern California (Metropolitan) and the Orange County Water
District (OCWD). The City is a member agency of Metropolitan and receives imported water
from the State Water Project and the Colorado River under agreements with Metropolitan.
OCWD manages the Orange County Groundwater Basin ("OC Basin" or "Basin") and provides
groundwater resources to the City.
The City maintains 444 miles of transmission and distribution mains, nine reservoirs with a
storage capacity of 49.3 million gallons, seven pumping stations, 20 wells, and seven imported
water connections. The seven imported water connections to the Metropolitan System are
described in Table 4 below.
Table 4 City of Santa Ana Connections to Metropolitan Facilities
MWD Connection
Name of Connection
Normal Operating
Ca ci MGD
Design Capacity
MGD
SA-1
Bristol
5.17
6.46
SA-2
First
5.17
9.69
SA-3
McFadden
5.17
6.46
SA-4
Warner
4.85
6.46
SA-5
Alton
4.85
12.93
SA-6
Santa Clara
7.76
12.93
SA-7
Red Hill
4.85
32.31
From 2005-2015, Metropolitan delivered between 3,000 AF or 2.6 MGD (2015, lowest
delivery) to 13,000 AF or 11.6 MGD (2005, highest delivery) to the City.' The design capacity
of the Metropolitan connections is more than adequate to deliver imported to the City as shown
in the table above.
The City's Water Utility provides water service within a 27-square mile service area. The service
area includes the City of Santa Ana and a small neighborhood in the City of Orange, near
Tustin Avenue and Fairhaven by the northeast corner of Santa Ana. See Table 5 which shows
the City's recent water supply to satisfy demands from 2015.
3 2015 Metropolitan UWMP.
FUSCOE ENGINEERING, INC. 12
ELAN PROJECT
WATER SUPPLY ASSESSMENT
NOVEMBER 2, 201
Table 5 2015 Projected and Actual Water Supply and Demand (Acre-feet)
Land Use Type
YP
2010 UWMP Projected 2015
Demand
Actual 2015 Demand
Single Family
18,368
14,084
Multi -Family
13,563
10,399
Other (CII)
15,684
12,025
Landscape
185
147
Total
47,800
36,656
Notes:
Source: 2010 and 2015 City of Santa Ana UWMPs
As shown in Table 5 above, there was a decrease in water supplied to the City in 2015 as to
what was predicted to be delivered in the 2010 UWMP (47,800 AF) by approximately 23%.
This is likely due to Senate Bill (SB) x7.7 which requires the State of California to reduce urban
water use by 20% by the year 2020 as described in more detail below. Similarly, the Executive
Order mandated by California Governor Edmund Brown in April 2015 in response to the recent
drought further required a collective reduction in statewide urban water use of 25%which would
also reduce Citywide demands. In addition, UWMPs are typically developed in a conservative
manner and tend to overestimate future water demands.
Currently, 71% of the City's water supply is from OC Basin groundwater, 28% is from
Metropolitan imported water and 1 % is from recycled water. The City's water supply portfolio
is expected to change slightly to 70% from OC Basin groundwater, 29% from Metropolitan
imported water, and 0.7% recycled water by the year 2040 as discussed in more detail
throughout this WSA. Additional details on the strategic management of these resources is
explained below.
OCWD Groundwater
The primary source of water for the City is the Orange County Groundwater Basin ("OC Basin")
which is managed by the Orange County Water District (OCWD). The OC Basin underlies the
north half of Orange County beneath broad lowlands. The OC Basin covers an area of
approximately 350 square miles, bordered by the Coyote and Chino Hills to the north, the Santa
Ana Mountains to the northeast, the Pacific Ocean to the southwest, and terminates at the
Orange County line to the northwest, where its aquifer systems continue into the Central Basin
of Los Angeles County.
The OC Basin storage capacity is estimated to be 66 million AF^, of which only a fraction is
available for use to prevent against physical damage to the Basin such as seawater intrusion or
land subsidence. To ensure the Basin is not overdrawn, OCWD recharges the Basin with local
and imported water. The Basin is recharged primarily by four sources including local rainfall,
storm and base flows from the Santa Ana River ISAR), purchased Metropolitan imported water;
and highly treated recycled wastewater. Basin recharge occurs largely in the following recharge
basins that are located in or adjacent to the City of Anaheim:
Warner Basin: A 50-foot-deep recharge basin located next to the SAR at the intersection
of the 55 and 91 freeways;
4 OCWD Groundwater Management Plan 2015 Update. June 17, 2015.
FUSCOE ENGINEERING, INC. 13
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WATER SUPPLY ASSESSMENT
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Burris Basin: Located between Lincoln Avenue and Ball Road in the City of Anaheim;
Kraemer Basin: Located adjacent to Burris Pit;
Santiago Creek: Located in the City of Orange between Villa Park Road and E. Bond
Avenue.
As mentioned above, SB 1262 amended Section 10910 of the Water Code and requires the
inclusion of SGMA-related information in WSAs. Specifically, following the SGMA basin
prioritization and designations', for a non -adjudicated basin that is designated as high- or
medium -priority pursuant to Section 10722.4, information regarding the following must be
included:
• Whether the department has identified the basin as being subject to critical conditions
of overdraft pursuant to Section 12924.
• If a groundwater sustainability agency has adopted a groundwater sustainability plan or
has an approved alternative, a copy of that alternative or plan.
The OC Basin (also referred to as Basin 8-1) has been designated as a medium -priority basin
which requires this WSA to address or include information regarding the bullets above. As
mentioned, SGMA provides authority for agencies like OCWD to develop and implement
Groundwater Sustainability Plans or alternative plans ("Alternatives') that demonstrate the basin
has operated within its sustainable yield over a period of at least 10 years. OCWD decided to
submit an Alternative for evaluation by the California Department of Water Resources (DWR).
An Alternative is required to be submitted to DWR for review no later than January 1, 2017,
and every 5 years thereafter. In general, Alternatives must be consistentwith one of the following
(Water Code §10733.6(b)):
A plan developed pursuant to Part 2.75 (commencing with Section 10750) or other law
authorizing groundwater management.
Management pursuant to an adjudication action.
An analysis of basin conditions that derronstrates that the basin has operated within its
sustainable yield over, a period of at least 10 years. The submission of an alternative
described by this paragraph shall include a report prepared by a registered professional
engineer or geologist who is licensed by the state and submitted under that engineer's
or geologist's seal.
OCWD prepared an Alternative that satisfies the third bullet point above to prove the OC Basin
has operated within its sustainable yield over a period of at least 10 years. The Basin 8-1
Alternative is included in Appendix C of this WSA. The Alternative states that Basin 8-1 has
operated within its sustainable yield for more than 10 years without experiencing significant and
unreasonable (1) lowering of groundwater levels, (2) reduction in storage, (3) water quality
degradation, (4) seawater intrusion, (5) inelastic land subsidence, or (6) depletions of
interconnected surface water that have significant and unreasonable adverse impacts on
beneficial uses of the surface water. In addition, Basin 8-1 has not been in conditions of critical
overdraft. DWR has one year to evaluate the Basin 8-1 Alterative. The paragraphs below will
s SGMA Groundwater Information Center Interactive Map Application, found here:
hffps:Hgis.water.ca.gov/app/gicima/
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further explain how OCWD successfully manages the OC Basin to meet these new groundwater
monitoring and management requirements.
OCWD manages the Basin through the Basin Production Percentage (BPP) which is determined
each water year. The BPP is set based on groundwater conditions, availability of imported water
supplies, water year precipitation, SAR runoff, and basin management objectives. The BPP
represents an established percentage identifying the amount of groundwater all pumpers in the
Basin can pump without paying a "pumping tax' or Basin Equity Assessment (BEA) to OCWD.
For example, if the BPP is set to 75%, all pumpers within the Basin, including the City, can supply
75% of their water needs from groundwater supplies at a cost significantly less than the cost of
imported water. If groundwater production is equal to or less than the BPP (i.e. less than 75%
in the example above), all producers within the Basin pay a replenishment assessment (RA) fee
which is used to fund groundwater replenishment and recharge programs aimed at ensuring
the long-term viability and stability of the Basin. If groundwater production is greater than the
established BPP for that water year (i.e. greater than 75% in the example above), the BEA is
determined for the producer of that amount of groundwater provided in excess of the BPP. The
BEA is an additional fee paid on each AF of water pumped above the BPP, making the total
cost of that additional water equal to the higher cost of imported water from Metropolitan.
According to OCWD's Engineer's Report for fiscal year 2015/16, the actual BPP was 75% as
shown in Table 6 below. Total water demands within OCWD were 367,402 AF for the water
year (July 1, 2015 to June 30, 2016). This is tie lowest figure for total water demands since
1982 which was caused by the State of California's emergency drought regulations.
Groundwater production for the water year totaled 277,090 AF including any available In -Lieu
Program water and excluding Metropolitan Groundwater Storage Program extractions. A total
of 47,524 AF of supplemental water was used for the purpose of groundwater replenishment
and barrier maintenance. For the water year, the "annual overdraft" (annual basin storage
decrease without supplemental replenishment water) was 141,000 AF. The accumulated
overdraft decreased from 381,000 AF on June 30, 2015 to 379,000 AF on June 30, 2016.
Precipitation within the Basin was 62% of normal rainfall during the water year, totaling 8.40
inches .6 The table below shows the water production data from 2015/16 for the City of Santa
Ana.
Table 6 City of Santa Ana Groundwater Produdion Data 2015-76
Groundwater
Supplemental Water(AF)
(AF)
Actual
Groundwater
BPP
Producer
Non-
Metropolitan
Irrigation Total
Conservation
Delivery Total
Grand
Non -
Irrigation
CUP
Pumping
Credit
Total
Only
City of Santa
Ana
29,629
4,524
24,745
8,183
83
8,266
33,012
75.0%
Source: OCWD 2015-16 Engineer's Report
Over the recent past, production capability of the Basin has increased as a result of increased
wastewater reclamation at the Groundwater Replenishment System (GWRS) located in Fountain
Valley. The GWRS, which is designed to turn wastewater into drinking water, is one of the most
n OCWD. Engineer's Report, 2015/16, February 2017.
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technologically advanced wastewater treatment plants in the world. Atreatment plant expansion
of 30 million gallons per day was recently put on line by OCWD increasing the recharge
capacity of the GWRS to 100 million gallons per day. This equates to the recycling of over
1 10,000 AFY of wastewater back into the Basin for future extraction and potable use. A final
expansion of the treatment system is being designed to have a capacity of 130 million gallons
per day. Expansion projects to the GWRS increase local water supply reliability and ensure low-
cost water supplies throughout northern Orange County, including the City of Santa Ana.
Metropolitan Imported Water
The City of Santa Ana is one of only three retail member agencies of Metropolitan in Orange
County. As a member agency, pursuant to the Metropolitan Act, the City has preferential rights
to a certain percentage of water delivered to Metropolitan each year primarily from the State
Water Project and/or the Colorado River Aqueduct as well as other Metropolitan storage
programs. Being a member agency of Metropolitan puts the City in a better position relative to
receiving water directly from Metropolitan, as opposed to other agencies in Orange County
which obtain their imported Metropolitan water through Municipal Water District of Orange
County (MWDOC). The main sources of water Metropolitan provides to the City include water
from northern California delivered via the State Water Project (SWP) and water from the
Colorado River Basin delivered via the Colorado River Aqueduct. More details on these sources
of imported water are explained below.
Colorado River
The Colorado River was Metropolitan's original source of water after Metropolitan's
establishment in 1928. Lake Mead and Lake Powell, the two largest reservoirs in the United
States, can store 4 times the annual flow of the Colorado River. River flows are primarily
generated from snowpack in the Rocky Mountains. Colorado River water is allocated and
delivered to seven states in the US including Colorado, Utah, Wyoming, New Mexico, Arizona,
Nevada and California. Mexico also has an allocation of 1.5 million acre-feet (MAF) along the
Colorado River each year.
California's urban water allocation is managed by Metropolitan and imported from the
Colorado River via the Colorado River Aqueduct (CRA) which is stored at Diamond Valley Lake
and Lake Mathews in Riverside County. The CRA includes supplies from the implementation of
the Quantification Settlement Agreement (QSA) and related agreements to transfer water from
agricultural agencies in Imperial County to urban uses throughout Southern California including
Los Angeles, Orange County and San Diego. The 2003 QSA enabled California to implement
major Colorado River water conservation and transfer programs, stabilizing water supplies for
75 years and reducing the state's demand on the river to its 4.4 MAF entitlement. Colorado
River transactions are potentially available to supply additional water up to the CRA capacity of
1.25 MAF on an as -needed basis.
California is apportioned the largest allocation on the River of 4.4 MAF of water from the
Colorado River each year plus one-half of any surplus that may be available for use collectively
in Arizona, California, and Nevada. In addition, California has historically been allowed to use
Colorado River water apportioned to but not used by Arizona or Nevada. Metropolitan has a
basic entitlement of 550,000 AFY of Colorado River water, plus surplus water up to an
additional 662,000 AFY if certain conditions exist. The remainder of California's allocation
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goes to Imperial County, primarily to the Imperial Irrigation District, and is used mainly for
agriculture production.
Over the past 16 years (2000-2015), there have only been three years when the Colorado River
flow has been above average.' The long-term imbalance in future supply and demand is
projected to be approximately 3.2 MAF by the year 2060. Actions are currently being taken
and planned in the future to resolve the imbalance between water supply and demand in areas
that use Colorado River water. Such actions include the resolution of uncertainties related to
water conservation, reuse, water banking, and weather modification concepts.'
State Water Proiect
The State Water Project (SWP) collects water from rivers in Northern California and redistributes
it to the water -scarce but populous central and southern portions of California through a
network of aqueducts, pumping stations and power plants. Approximately 70% of the water
provided by the SWP is used for urban areas and industry in Southern California and the San
Francisco Bay Area, and 30% is used for irrigation in the Central Valley. The availability of
water supplies from the SWP can be highly variable. A wet water year may be followed by a dry
water year which restricts the amount of water that can be delivered throughout California.
Metropolitan's SWP imported water is stored at Castaic Lake on the western side of
Metropolitan's service area and at Silverwood Lake near San Bernardino, as well as in Diamond
Valley Lake.
The Sacramento -San Joaquin River Delta (Delta) is key to the SWP's ability to deliver water to
its agricultural and urban contractors. The Delta faces many challenges concerning its long-
term sustainability such as climate change posing a threat of increased variability in floods and
droughts. Sea level rise complicates efforts in managing salinity levels and preserving water
quality in the Delta to ensure a suitable water supply for urban and agricultural use.
Furthermore, other challenges include continued subsidence of Delta islands, many of which
are below sea level, and the related threat of a catastrophic levee failure as the water pressure
increases, or as a result of a major seismic event.
Metropolitan's Board approved a Delta Action Plan in June 2007 that provides a framework for
staff to pursue actions with other agencies and stakeholders to build a sustainable Delta and
reduce conflicts between water supply conveyance and the environment. The Delta action plan
aims to prioritize immediate short-term actions to stabilize the Delta while an ultimate solution
is selected, and mid-term steps to maintain the Delta while a long-term solution is implemented.
Currently, Metropolitan is working towards addressing three basic elements: Delta ecosystem
restoration, water supply conveyance, and flood control protection and storage development.
In April 2015, the Brown Administration announced California WaterFix, as well as a separate
ecosystem restoration effort called California EcoRestore. Together, the California WaterFix
and California EcoRestore will make significant contributions toward achieving the coequal
goals of providing a more reliable water supply for California and protecting, restoring, and
enhancing the Delta ecosystem. The WaterFix is aimed at making physical and operational
improvements to the SWP system in the Delta necessary to restore and protect ecosystem health,
2015 Metropolitan UWMP.
s 2012 USBR Colorado River Basin Water Supply and Demand Study.
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south -of -Delta SWP water supplies, and water quality. The WaterFix includes the construction
of two tunnels up to 150 feet below ground and three new intakes, each with 3,000 cubic -feet
per second (cfs) capacity and an average annual yield of 4.9 million acre-feet designed to
protect California's water supplies. These proposed upgrades would provide protection against
water supply disruption from failure of aging levees due to sea -level rise, earthquakes and flood
events.
Recycled Water
The City depends on OCWD for its recycled water supply for non -potable uses such as irrigation.
OCWD provided 352 AF of recycled water to the City of Santa Ana in 2015 as part of the
Green Acres Project (GAP). OCWD owns and operates the GAP, a water recycling system that
provides up to 8,400 AFY of recycled water as an alternate source of water that is mainly
delivered to parks, golf courses, greenbelts, cemeteries, and nurseries in the cities of Costa
Mesa, Fountain Valley, Newport Beach, in addition to Santa Ana. The City maintains an
agreement with OCWD to supply GAP water to customers where available. It is anticipated
that recycled water supplied to the City will maintain around 300 AFY through 2040.
3.2 CITY WATER DEMANDS
The City's Water Utility provides water service within a 27-square mile service area to a
population of approximately 335,299 as of 201 V . The City is almost completely built -out and
its population is projected to increase only 0.9% by 2040. Approximately 67% of the City's
water demand is residential including single family and multi -family residential units.
Commercial land uses, including dedicated landscape, accounts for the remaining 33% of the
total demand. The 2015 UWMP highlighted that water demands throughout the City were
36,656 AF from July 2014 to June 2015. The 2010 UWMP anticipated water demands in
2015 to be much larger at 47,800 AF. As mentioned, the difference -is likely because of the
mandatory water restrictions from the Governor's Executive Order and the fact that UWMPs are
typically developed in a conservative manner and tend to overestimate future water demands.
In April 2015 Governor Brown issued an Executive Order as a result of one of the most severe
droughts in California's history, requiring a collective reduction in statewide urban water use of
25% by February 2016, with each agency in the state given a specific reduction target by DWR.
In response to the Governor's mandate, the City began to track its water wasting prohibition
enforcement activities. On June 2, 2015, the City declared a Phase 2 water supply shortage in
Resolution No. 2015-025 by formally requiring all water consumers to reduce use by 12%
relative to their 2013 consumption. Additionally, on August 4, 2015, a water wasting penalty
rate was established by Resolution No. 2015-047. This new penalty rate permits City staff to
penalize those users not meeting their water use reduction targets of 12%. The City of Santa
Ana as a whole met its State mandated target; as a result the City did not have to impose any
monetary penalties on any of its users.
As of April 7, 2017, Governor Brown ended the drought State of Emergency in most of
California, while maintaining water reporting requirements and prohibitions on wasteful
9 Center of Demographics Research (CDR) at California State University, Fullerton
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practices such as watering during or right after rainfall.70 The City continues to promote water
use efficiency and currently has a goal to continue to reduce water demands by 3% compared
to 2013 consumption. In addition, the City only allows outdoor watering to every other day or
Monday, Thursday, and Saturday and only between the hours of 6 PM and 6 AM."
Such restrictions have significantly reduced water demands throughout California. In addition
to these mandated restrictions, cities must follow the Water Conservation Act of 2009, also
known as Senate Bill (SB) x7-7. This law required the State of California to reduce urban water
use by 20% by the year 2020. The City must determine baseline water use during their baseline
period and water use targets for the years 2015 and 2020 to meet the state's water reduction
goal. The City's 2015 target was 123 gallons per capita per day (GPCD) and the 2020 target
is 116 GPCD. The 2015 UWMP reported that the City has already met both the 2015 and
2020 water use targets with an actual use in 2015 of 83 GPCD. This is likely due to increased
conservation as required by the Governor's Executive Order during severe drought conditions
throughout California.
The City's water demand has been decreasing in recent years due to the combination of the
Governor's Executive Order and SBx7-7 goals. The City's water demands are then expected to
increase by approximately 8%from 2015 to 2040 as shown in the table below.
Table 7 City of Santa Ana Projected Total Water Demands
`lJnd TVs
Demand
2015
2020
2025
2030
2035
2040
Potable and
Raw Water
36,656
36,678
39,397
39,669
39,658
39,716
Recycled
Water
352
320
320
320
320
320
Total Water
Demand
37,008
36,998
39,717
39,989
39,978
40,036
Source: 2015 City of Santa Ana UWMP
As shown above, it is projected that water demands will increase from 37,008 AF in 2015 to
40,036 AF in year 2040. These estimates are approximately 10,000 AF less than what was
predicted in the 2010 UWMP further highlighting the conservative nature of UWMP preparation.
The 2015 Metropolitan UWMP stated that Metropolitan would be able to meet the demands of
its member agencies, including the City of Santa Ana, through 2040. Therefore, imported water
demands for the City are projected to be met through the 20-year requirements of SB 610 and
beyond. The City of Santa Ana 2015 UWMP also confirmed the ability of the local supplies
and the OC Basin to meet the growing demands of the City. The ability for the City to meet
these growing demands in multiple climate scenarios is explained in the sections below.
10 SWRCB Water Conservation Portal — Emergency Conservation Regulation, accessed on 09/06/2017. Found
here: http://www.waterboards.Co.gov/wafer_issues/procrams/conservation_portal/emergency_regulation.shtml
City of Santa Ana — Water Conservation Website, accessed 09/06/2017. Found here: http://www.cl.santa-
ano.ca.us/waterconsoNation/
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4. REGIONAL WATER SUPPLY RELIABILITY
The City of Santa Ana currently depends on Metropolitan and OCWD to provide the majority
of its water supply. This section provides a description of the ability of Metropolitan, OCWD
and the City to ensure that adequate water supplies will be available to satisfy the City's growing
water demands including the proposed Project through 2040 during normal, single dry year
and multiply dry year scenarios.
4.1 METROPOLITAN WATER DISTRICT REGIONAL WATER SUPPLY RELIABILITY
Metropolitan's 2015 Urban Water Management Plan (UWMP) was finalized in June 2016 and
has been prepared in compliance with Water Code Sections 10608.36 of SB X7-7 and Sections
10610 through 10656 of the Urban Water Management Planning Act (Act). The information
included in the 2015 UWMP represents the most current and available planning projections of
supply capability and demand developed through a collaborative process with the member
agencies, including the City of Sana Ana. The Act requires reporting agencies to describe their
water reliability under a single dry -year, multiple dry -year, and average year conditions, with
projected information in five-year increments for 20 years.
Metropolitan updates its retail municipal and industrial (M&I) projection periodically based on
the release of official regional demographic and economic projections. The projections of retail
M&I water demands used in the 2015 UWMP are based on data from the Southern California
Association of Governments (SCAG) 2012 Regional Transportation Plan/Sustainable
Community Strategy (April 2012) and the San Diego Association of Governments (SANDAG)
Series 13: 2050 Regional Growth Forecast (October 2013). The projected regional water
demand is adjusted to account for water conserved by Best Management Practices from active,
code -based, and price -effect conservation.
Supply analysis includes Colorado River supplies, SWP supplies and existing and proposed
storage programs through Metropolitan's service area. Colorado River Aqueduct (CRA)
supplies include supplies that would result from existing and committed programs and from
implementation of the Quantification Settlement Agreement (QSA) and related agreements.
State Water Project (SWP) supplies are estimated using the 2015 SWP Delivery Capability Report
distributed by DWR in July 2015. In regards to storage, Metropolitan assumed 2015 storage
levels at the start of simulation and used the median storage levels going into each of the five-
year increments based on the balances of supplies and demands. See Table 8 below showing
Metropolitan's ability to meet growing demands in normal, single -dry and multiple -dry year
climate scenarios.
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Table 8 Metropolitan Multiple Climate Scenario Water Supply Capability and Projected
Demands Comparison from 2020-2040 (AF)
Forecast Year
2020
2035
2Q30
2035
2040
Normal Year
Capability of Current Supply
3,448,000
3,550,000
3,658,000
3,788,000
3,824,000
Total Demands
1,860,000
1,918,000
1,959,000
2,008,000
2,047,000
Supply Programs Under
Development
63,000
100,000
386,000
428,000
468,000
Total Potential Surplus
1,651,000
1,732,000
2,085,000
2,208,000
2,245,000
Single -:Dry Year
Capability of Current Supply
2,584,000
2,6 66,000
2,775,000
2,905,000
2,941,000
Total Demands
2,005,000
2,066,000
2,108,000
2,160,000
2,201,000
Supply Programs Under
Development
63,000
100,000
316,000
358,000
398,000
Total Potential Surplus
642,000
720,000
983,000
1,703,000
1,138,000
Multiple
-Dry Year
Capability of Current Supply
2,103,000
2,154,000
2,190,000
2,242,000
2,260,000
Total Demands
2,001,000
2,118,000
2,171,000
2,216,000
2,258,000
Supply Programs Under
Development
43,000
80,000
204,000
245,000
286,000
Total Potential Surplus
145,000
116,000
223,000
271,000
288,000
Source: 2015 Metropolitan UWMP
The findings of the 2015 Metropolitan UWMP highlight that Metropolitan has supply capabilities
that would be sufficient to meet expected demands from 2020 through 2040 under the normal,
single dry -year and multiple dry -year conditions. Metropolitan also has proposed programs in
place to ensure against water shortages in the future. These programs include projects along
the California Aqueduct and the Colorado River Aqueduct in addition to demand reduction
projects. In all climate scenarios, Metropolitan estimates potential surpluses in water supply
through 2040.
The Metropolitan 2015 UWMP was made public in early 2016 and shared with Metropolitan's
member agencies. Once these findings were finalized, the Metropolitan member agencies
could conclude their own 2015 UWMP findings. The City of Santa Ana published their 2015
UWMP in April 2016 after determining Metropolitan would be able to meet the City's imported
water demands through 2040. The City of Santa Ana and OCWD local water supply reliability
is summarized below.
4.2 OCWD AND CITY OF SANTA ANA LOCAL WATER SUPPLY RELIABILITY
Like Metropolitan, the City of Santa Ana is also required to assess the reliability of their water
service to its customers under normal, single -dry and multiple -dry water years. As mentioned
the City depends on a combination of imported water from Metropolitan and local groundwater
supplies from OCWD to meet its water demands. The City has taken numerous steps to ensure
it has adequate supplies to provide for growing demands.
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The City has several water demand reduction requirements and resources on their website that
informs its customers on how to save water. Some of the main requirements are summarized
below:
Residential
o Mandatory 3% reduction in water use compared to usage during the some
billing period in 2013.
o Outdoor watering is restricted to no more than every other day or Mondays,
Thursdays and Saturdays, and only between the hours of 6 p.m. and 6 a.m.*
o Leaks must be repaired within 48 hours of notification by the City.
o No washing down sidewalks or driveways.
o No excessive water flow or runoff that causes water to flow onto an adjoining
sidewalk, driveway, street, alley, gutter or ditch.
o No washing vehicles with a hose, unless the hose is fitted with a shut-off
nozzle.
o No operating a fountain or decorative water feature, unless the water is part of
a recirculating system.
o No outdoor watering during and 48 hours following measurable rainfall.
• Businesses
o Restaurants, cafes and bars can only serve water to customers on request.
o Hotels and motels must prominently display a notice providing guests with the
option of choosing not to have towels and linens laundered daily.
In addition, landscape policies have also been modified to allow drought tolerate landscape
throughout the City (see Appendix B). These programs have been successful in reducing water
demands throughout the City's service area.
OCWD is also taking strides to ensure local water supplies will meet growing demands now
and into the future. As mentioned, OCWD manages the City's groundwater supply and the
entire OC Basin utilizing the BPP approach. In 2013, OCWD's Board of Directors adopted a
policy to establish a stable BPP with the intention to work toward achieving and maintaining a
75 percent BPP by FY 2015-16. Although BPP is set at 75 percent, based on discussions with
OCWD a conservative BPP of 70 percent is assumed through 2040 for supply projection
analysis in the City's 2015 UWMP. Principles of this policy include:
OCWD's goal is to achieve a stable 75 percent BPP, while maintaining the some
process of setting the BPP on an annual basis (BPP will be set in April of each year after
a public hearing has been held and based upon the public hearing testimony, presented
data, and reports provided at that time).
OCWD's transition to the 75 percent BPP was due to construction of the GWRS Initial
Expansion Project, which was completed in 2015. This expansion provided an
additional 31,000 AFY of water for recharging the groundwater basin.
OCWD must manage the OC Basin in a sustainable manner for future generations.
The BPP will be reduced if future conditions warrant the change.
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• Each project and program to achieve the 75 percent BPP goal will be reviewed
individually and assessed for their economic viability.
The BPP goals mentioned above coincide with other management strategies as shown in
OCWD's Long Term Facilities Plan (LTFP), the 2015 Groundwater Management Plan and the
2020 Water Master Plan Report. These documents highlight OCWD's plans to ensure
groundwater supply will be available into the future to support growing demands of its service
area.
As shown in Table 9 below, the City's available supply, including OCWD groundwater and
Metropolitan imported water, will meet projected demand during normal, single dry and
multiple dry years. For the City's 2015 UWMP, the normal dry year was selected as the City's
2015 demand. A single -dry year is defined as a single year of no to minimal rainfall within a
period that average precipitation is expected to occur. The City has documented that it is 100%
reliable for single dry year demands from 2020 through 2040 with a demand increase of 6%
using FY 2013-14 as the single dry -year. Multiple -dry years are defined as three or more years
with minimal rainfall within a period of average precipitation. The City is capable of meeting all
customers' demands with significant reserves held by Metropolitan, local groundwater supplies,
and conservation in multiple dry years from 2020 through 2040 with a demand increase of 6%
using FY 201 1-12 through FY 2013-14 as the driest years.
Table 9 City of Santa Ana Multiple Climate Scenario Water Supply and Demand Comparison
from 2020-2040 (AF)
Forecast Year
12020 2 225
12030 12035
12040
Normal Year
Supply totals
36,998
39,717
39,989
39,978
40,036
Demand totals
36,998
39,717
39,989
39,978
40,036
Single -Dry Year
Supply totals
39,278
42,100
42,388
42,377
42,438
Demand totals
39,218
142,100
42,388
42,377
42,438
Multiple
-Dry Year
First year
Supply totals
39,218
42,100
42,388
42,377
42,438
Demand totals
39,218
42,100
42,388
42,377
42,438
Second year
Supply totals
39,218
42,100
42,388
42,377
42,438
Demand totals
39,218
42,100
42,388
42,377
42,438
Third year
Supply totals
39,218
42,100
42,388
42,377
42,438
Demand totals
39,218
42,100
42,388
42,377
42,438
Source: 2015 City of Santa Ana UWMP
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NOVEMBER 2, 201
As shown in Table 9 above, in all climate scenarios analyzed in the 2015 UWMP, available
water supplies are projected to meet demands. Reliability of local water supplies will be ensured
through continued implementation of the OCWD Groundwater Management Plan, OCWD's
LTFP, and the combined efforts and programs among member agencies of Metropolitan.
The City closely monitors development throughout the City to ensure water supplies will meet
growing demand. The City has a log of all developments that have required a WSA and track
the increases in water demands from these projects. As shown in Table 10 below, the City is
able to provide water supply to satisfy growing City demands including the Elan Project.
FUSCOE ENGINEERING, INC. 24
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WATER SUPPLY ASSESSMENT NOVEMBER 2, 2017
As shown above, a small deficit of 329 AF (less than 1 % of total demands) is projected for the
year 2020. These demand/supply numbers come from projections calculated within the City's
UWMP. As mentioned throughout this WSA, UWMPs are conservative in nature and tend to
overpredict demand. For example, there was a 23% decrease in water use in the City in 2015
as to what was predicted to be used in the 2010 UWMP for the year 2015. Therefore, the
deficits shown in Table 10 above during the year 2020 will likely not occur due to the significant
decreases in demand as seen over the past several years. From 2025-2040, surplus supply of
approximately 2,000 AF is anticipated as well. As confirmed by the City's Water Utility
department, the deficit is not anticipated to be an issue for the Project or the City.72 The findings
of the Metropolitan 2015 UWMP and the City of Santa Ana 2015 UWMP confirm that the City
of Santa Ana will be able to supply water to growing demands within its service area including
the proposed Project through 2040 which satisfies the requirements of SB 610.
12 Personal communication with City's Water Utility department on 10/02/201 7.
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5. CONCLUSION
NOVEMBER 2, 2017
The City of Santa Ana depends on local and regional water supplies from OCWD and
Metropolitan to satisfy growing demands. OCWD has managed the OC Basin for over 75
years and has plans to sustainably manage the groundwater system through 2040 under the
new California SGMA policies and guidelines. Metropolitan has stated in its 2015 UWMP that
its water supply portfolio will be able to satisfy regional growth and water demands through
2040. The same findings were concluded in the City of Santa Ana 2015 UWMP as both
Metropolitan and OCWD supplies are projected to meet future water demands.
The 2015 City UWMP projected that water demands would grow from 37,008 AF in 2015 to
40,036 AF in 2040. Over the past several years, actual demands decreased substantially to
due to local conservation and regional drought management regulations. Therefore, like most
UWMPs, the 2015 City UWMP is conservative with projections of water supplies needed to
satisfy demands through 2040.
The 2015 UWMP incorporates regional growth projections from CDR in order to determine
future water demands. Projects like Elan are included in these regional projections of future
population growth and are tracked by the City. The proposed Project will demand
approximately 195 AF per year (an increase of approximately 191 AF per year as compared to
existing water demands) which is well within the planned water supplies needed in the future in
the City of Santa Ana. Therefore, this WSA is able to conclude adequate supplies are available
to provide for the demands of the proposed Project as well as other service area demands within
the City of Santa Ana.
FUSCOE ENGINEERING, INC. 27
ELAN PROJECT
WATER SUPPLY ASSESSMENT NOVEMBER 2, 2017
G. REFERENCES
2012 USBR Colorado River Basin Water Supply and Demand Study
2015 Metropolitan of Southern California Urban Water Management Plan
Center of Demographics Research (CDR) at California State University, Fullerton
City of Santa Ana — Water Conservation Website, accessed 09/06/2017. Found here:
httr)://www.ci.santo-ana.ca.us/waterconservation/
City of Santa Ana Design Guidelines for Water and Sewer Facilities (March 2017). Found
here: http://www.sonto-ana.org/pwa/documents/DesignGuidelines.pdf
OCWD Groundwater Management Plan 2015 Update. June 17, 2015
OCWD. Engineers Report, 2015/16, February 2017
Senate Bill No. 1262, CHAPTER594, found here:
http://Iegi nfo.legislature.co.gov/faces/billTextClient.xhtml? bill_id'-201520160SB 126
SGMA Groundwater Information Center Interactive Map Application, found here:
hffps:Hgis.water.ca.gov/app/gicima/
SWRCB Water Conservation Portal — Emergency Conservation Regulation, accessed on
09/06/2017. Found here:
http://www.waterboa rds.ca.gov/water_issues/programs/conservation_portal/em ergen
cy_regulation.shtml
FUSCOE ENGINEERING, INC. 28
ELAN PROJECT
WATER SUPPLY ASSESSMENT
7. TECHNICAL APPENDICES
Appendix A— Proposed Project Water Demand Calculations
Appendix B — Landscape Water Efficiency Ordinance No. 6355
Appendix C — SGMA Basin 8-1 Alternative Plan
NOVEMBER 2, 2017
PUSCOE ENGINEERING, INC. 29
ELAN PROJECT
WATER SUPPLY ASSESSMENT
APPENDIX A
NOVEMBER 2, 201
PROPOSED PROJECT WATER DEMAND CALCULATIONS
EUSCOE ENGINEERING, INC. 30
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ELAN PROJECT
WATER SUPPLY ASSESSMENT
APPENDIX B
CITY OF SANTA ANA LANDSCAPE GUIDELINES
NOVEMBER 2, 2017
EUSCOE ENGINEERING, INC. 31
Planning and Building Agency
Planning Division
20 Civic Center Plaza
Santa Ana, x 1988
2702 CALIFORNIA FRIENDLY
Santa Ana, CA 92702
(714)647-5804 LANDSCAPE GUIDELINES
www.santa-ana.org
In response to the extreme drought conditions throughout California, and the drought State of
Emergency declared by the Governor in 2014, landscape policies have been modified to allow
drought tolerant landscape throughout the city. The following are the Planning Division policy
guidelines for required landscape planting and "ground cover" on private property:
1. 100% of the required landscape for private property MUST be covered with materials such
as plants, compost and mulch, and permeable "hardscape" — with the exception of approved
driveways and walkways. Refer to property zoning district for minimum of trees and shrubs.
http://www.ci. santa-ana.ca. us/pba/planninq/Zoning Documents.asp
2. Plant material must cover at least 65% of the required landscape area.
a. The Landscape Plan MUST be designed such that it can reasonably be assumed that at
least 65% of the site will be covered with Ip ant material by the time the plants are
mature, or within two years, whichever is sooner. This determination will be made at the
sole discretion of Planning and Building Agency staff. Synthetic turf may be installed,
provided it does not exceed 50% of the area designated as plant material for the yard.
For more details on synthetic turf landscape plan requirement see
http://www.santa-ana.orq/pba/planning/documents/Synthetic turf standards.Ddf
b. Plant material is to be dispersed throughout the landscape area.
3. Permeable hardscape may cover no more than 35% of the required landscape area.
a. Permeable hardscape may include pavers and brick set on a bed of sand, where no
mortar or grout has been used.
b. If not covered by permeable hardscape or plant material, landscape must be completely
covered by at least a two-inch layer of mulch. Acceptable mulch includes compost, bark
and other organic material. There can be no bare soil or installation of non -permeable
(material water cannot easily penetrate) hardscape such as a concrete patio or walkway.
c. Permeable hardscape adjacent to approve driveways shall not be used for parking of
vehicles. Permeable hardscape is to no greater than two percent slope to allow for
draining of water into the soil.
4. All plant materials selected from these two websites (LA Coastal Gardens and
www.bewaterwise.com) are acceptable drought tolerant plants.
5. Irrigation systems should also be adjusted to be water efficient through best practices (drip
irrigation, bubblers, etc.)
Additional information and a variety of resources for creating and maintaining a California
Friendly garden are available at http://www.santa-ana.orq/SAwatersmart/. For more information
about landscaping your parkway, is please see the "Quick Links" for the Parkway Improvement
Guidelines.
NLIandscaperCA Friendly Lm6capc Guideline %1ay272015R1.Vslac
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Single Family Residences (R1 zoning district) requires: 20 feet landscape setback
for front yard; to include one 24-inch box canopy tree, six 5-gallon shrubs, ten 1-gallon
shrubs (SAMC 41-240) and "ground cover' (per 2014 City California Friendly
Landscape Guideline). A five feet landscape setback is also required for side yards,
with the exception of approved walkway or driveway.
Mid.andstapelCA I nendLy Ian&eape Guideline May272015RIA-Am
ELAN PROJECT
WATER SUPPLY ASSESSMENT
APPENDIX C
SIGMA BASIN 8-1 ALTERNATIVE PLAN
NOVEMBER 2, 2017
FUSCOE ENGINEERING, INC. 32
VT
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CITY OF LA HABRA i
Irvine Ranch
WATER DISTRICT
Basin 8-1 Alternative
"Reduced Version. Full document found here:
https://www.ocwd.com/media/4918/basin-8-l-alternative-final-report-1 .pdf
Submitted by: Orange County Water District
City of La Habra
Irvine Ranch Water District
Submitted to: California Department of Water Resources
January 1, 2017
Table of Contents
Overview
11. Hydrogeology of Basin 8-1
111. La Habra -Brea Management Area
IV. OCWD Management Area
V. South East Management Area
VI. Santa Ana Canyon Management Area
Attachment One: Documentation of Public Participation and Agency Approvals
2017 BASIN 8-1 ALTERNATIVE Table of Contents i
Basin 8-1 Overview
BASIN 8-1 ALTERNATIVE
OVERVIEW
The Sustainable Groundwater Management Act (SGMA) requires all high- and medium -priority
basins, as designated by the Department of Water Resources (DWR), be sustainably managed.
DWR designated the Coastal Plain of Orange County Groundwater Basin ("Basin 8-1" or
"Basin") as a medium -priority basin, primarily due to heavy reliance on the Basin's groundwater
as a source of water supply.
Compliance with SGMA can be achieved in one of two ways:
1) A Groundwater Sustainability Agency (GSA) is formed and a Groundwater Sustainability
Plan (GSP) is adopted, or
2) Special Act Districts created by statute, such as OCWD, and other agencies may
prepare and submit an Alternative to a GSP.
The agencies within Basin 8-1 have agreed to collaborate together in order to submit an
Alternative to a GSP. Within this document, this Alternative to a GSP will be referred to herein
as the "Basin 8-1 Alternative" or "Alternative". In accordance with Water Code §10733.6(b)(3),
this Alternative presents an analysis of basin conditions that demonstrates that the Basin has
operated within its sustainable yield over a period of at least 10 years. In addition, the
Alternative establishes objectives and criteria for management that would be addressed in a
GSP and is designed to be "functionally equivalent" to a GSP. As will be shown in the Basin 8-1
Alternative, Basin 8-1 has been operated within its sustainable yield for more than 10 years
without experiencing significant and unreasonable (1) lowering of groundwater levels, (2)
reduction in storage, (3) water quality degradation, (4) seawater intrusion, (5) inelastic land
subsidence, or (6) depletions of interconnected surface water that have significant and
unreasonable adverse impacts on beneficial uses of the surface water. Please note that the
boundaries of Basin 8-1 described in this document are based on the scientific boundary
modifications as accepted by DWR in 2016 as part of the Basin Boundary Modification Process.
The Basin 8-1 Alternative has been jointly prepared by the Orange County Water District
(OCWD), Irvine Ranch Water District (IRWD); and the City of La Habra (collectively the
"Submitting Agencies"); pursuant to this Alternative, the Submitting Agencies will ensure the
entire Basin 8-1 continues to be sustainably managed and data reported as required by SGMA.
Other agencies within Basin 8-1 and at least partially outside of OCWD's boundaries support
submission of the Basin 8-1 Alternative and either have participated in preparing the Alternative
and/or reviewed the Alternative. These agencies include the cities of Brea, Corona, and Chino
Hills; the Counties of Orange, Riverside, and San Bernardino; Yorba Linda Water District; and
El Toro Water District. Pursuant to Water Code §10733.6(b)(3), the Basin 8-1 Alternative has
been prepared by or under the direction of a professional geologist or professional engineer.
2017 BASIN 8-1 ALTERNATIVE Overview 1
Basin 8-1 Overview
For the purpose of compliance with the SGMA requirement that the entire basin be covered by
this Basin 8-1 Alternative, Submitting Agencies have divided Basin 8-1 into four management
areas: La Habra -Brea, OCWD, South East, and Santa Ana Canyon Management Areas, shown
in Figure 1-1.
Historically, the majority of Basin 8-1 (90% of the land area) has been managed by OCWD,
which includes the land area within the OCWD Management Area and a small portion of the
land area within the Santa Ana Canyon Management Area. The percentage of the land area
within Basin 8-1 in each of the management areas is shown in Figure 1-2.
Although the land areas outside of OCWD's jurisdiction in the Santa Ana Canyon and South
East Management Areas have not been formally "managed" by OCWD, the hydrogeological
conditions in these areas are essentially an extension of the managed basin. OCWD has
incorporated data, when available, from these areas into the OCWD data base. For example,
precipitation runoff from the mountains along the eastern border (in the South East
Management Area) is estimated and incorporated into OCWD's basin water budget. The Santa
Ana Canyon Management Area, created in this report in order to include land within and outside
of OCWD's service area, is upstream of OCWD recharge operations. While OCWD does not
have jurisdiction over all the land in this area, OCWD does have the rights to all the water in the
Santa Ana River released from Prado Dam. In this respect, OCWD is actively engaged in
managing the flow of surface water within the Santa Ana Canyon irrespective of land ownership.
While the four management areas are described separately in this report, it is important to
understand that actual "management" is not as distinct, and existing collaborative efforts
between agencies in managing groundwater resources will continue. In the case of the La
Habra -Brea Management Area, the City of La Habra has already been deemed the exclusive
GSA for the La Habra/Brea area and intends to prepare a Groundwater Sustainability Plan
(GSP). When La Habra submits a GSP, this Basin 8-1 Alternative will no longer include the La
Habra/Brea area within the area designated by the GSP.
As authorized by 23 CCR § 354.20, this Basin 8-1 Alternative describes four management areas
as shown in Figure 1. The rationale for designating these management areas within Basin 8-1
is explained as follows:
• La Habra -Brea Management Area includes the northern portion of Basin 8-1 that is
located outside of the OCWD service area and is within the cities of La Habra and Brea.
The City of La Habra currently manages this portion of Basin 8-1. Although this
management area is hydrologically distinct from the OCWD Management Area there is
an estimated 1,000 afy of subsurface groundwater flow from the La Habra -Brea
Management Area to the OCWD Management Area. Surface water that recharges the
OCWD portion of Basin 8-1 does not replenish the La Habra -Brea Management Area.
The OCWD Management Area includes approximately 89 percent of the land area of
Basin 8-1. Ninety-eight percent of all groundwater production within 8-1 occurs in this
management area. This area includes the portion of Basin 8-1 that is within OCWD's
service area, except for an approximately 7-square mile portion of OCWD's service area
2017 BASIN 8-1 ALTERNATIVE Overview 2
Basin 8-1 Overview
that is in the Santa Ana Canyon Management Area. OCWD has been managing the
majority of Basin 8-1 since its formation in 1933.
• The South East Management Area includes the southern and southeastern portion of
Basin 8-1 that is hydrogeologically connected to the OCWD Management Area but is
outside of OCWD's service area. This area consists of several, disconnected, small
fringe areas that are within the DWR designated boundary of Basin 8-1. This
management area includes areas under the jurisdiction of the IRWD, the El Toro Water
District and the City of Orange. The groundwater basin in this area is thin and contains
more clay and silt deposits than aquifers in the OCWD Management Area. Groundwater
historically has flowed out of this area into the OCWD Management Area. Production
has been minimal in this area due to hydrogeological conditions with little potential for
significant future increases.
• The Santa Ana Canyon Management Area includes the easternmost section of Basin 8-
1. This area includes land under the jurisdiction of several cities, two counties, and two
water districts, including a portion that is within the OCWD service area. Groundwater
production is relatively minor compared to groundwater production in the OCWD
Management Area. The western boundary of this management area is located at
Imperial Highway in the city of Anaheim where the basin thickness begins to increase.
Imperial Highway crosses the Santa Ana River where OCWD begins to divert river water
into the recharge facilities for percolation into the groundwater basin.
The Basin 8-1 Alternative is organized as follows:
• Overview: Provides a map and description of Basin 8-1 and a brief description of the
basin management areas.
• Hydrogeology of Basin 8-1: Provides a description of the hydrogeology of Basin 8-1
including a description of the basin, the aquifer systems, fault zones, total basin volume,
basin cross -sections, basin characteristics, and general groundwater quality.
• La Habra -Brea Management Area: Provides a description of sustainable management of
the La Habra -Brea Management Area
• OCWD Management Area: Provides a description of sustainable management of the
OCWD Management Area
• South East Management Area: Provides a description of sustainable management of the
South East Management Area
• Santa Ana Canyon Management Area: Provides a description of sustainable
management of the Santa Ana Canyon Management Area
2017 BASIN 8-1 ALTERNATIVE Overview 3
Basin 8-1 Overview
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2017 BASIN 8-1 ALTERNATIVE Overview 4
Basin 8-1 Overview
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Figure 1-2: Percentage of Land Area in Basin 8-1 within Management Areas
1. LA HABRA-BREA MANAGEMENT AREA
The La Habra -Brea Management area covers the northern portion of Basin 8-1. The City of La
Habra has been deemed the exclusive GSA under SGMA for this management area. This
management area is part of Basin 8-1, but is hydrogeologically distinct from the OCWD
Management Area and is not under the jurisdiction of OCWD. The City adopted a resolution to
establish the La Habra Basin as a separate basin from Basin 8-1. OCWD adopted a resolution
to support the City's request to DWR for an internal jurisdictional boundary modification in the
OC Basin that follows the city limits of La Habra and Brea as is outside of the Orange County
Water District's jurisdictional boundary.
The La Habra -Brea Management Area is included with this Alternative to facilitate collaboration
among groundwater agencies within Basin 8-1 as required by SGMA. The City of La Habra and
portions of the City of Brea comprise the La Habra -Brea Management Area. This area overlies
the extents of the proposed La Habra Groundwater Basin, referenced herein.
The La Habra -Brea Management Area is currently monitored for groundwater elevations and for
groundwater quality through productions wells and historical data from monitoring wells within
the La Habra -Brea Management Area and surrounding area.
2017 BASIN 8-1 ALTERNATIVE Overview 5
Basin 8-1 Overview
As the City of La Habra currently depends on local groundwater to meet approximately 40
percent of its water consumption; preserving the sustainability of the La Habra -Brea
Management Area is essential. Currently (and historically), the City of La Habra manages (and
has managed) the La Habra -Brea Management Area through management plans and programs
for groundwater levels, basin storage, and water quality. By January 2020, the City will manage
the La Habra -Brea Management Area through a Groundwater Sustainability Plan under SGMA,
which will describe the monitoring program and ensure that no undesirable results occur in the
future.
2. OCWD MANAGEMENT AREA
The OCWD Management Area covers an area of approximately 260 square miles within Basin
8-1, which represents approximately 89 percent of the land area of Basin 8-1. Ninety-eight
percent of the groundwater production within Basin 8-1 occurs in the OCWD Management Area.
Groundwater produced within the OCWD Management Area provides approximately 70 percent
of the total water supply for a population of around 2.4 million residents.
Since its formation by the California Legislature in 1933, OCWD has been the managing agency
for the majority of Basin 8-1, also referred to as the Coastal Plain of Orange County
Groundwater Basin. As a special act district listed in Water Code § 1072(c)(1), OCWD is the
exclusive local agency within its jurisdictional boundaries with powers to comply with SGMA.
Water demands within the OCWD Management Area have grown from approximately 150,000
acre-feet per year (afy) in the mid-1950s to a high of approximately 366,000 afy in water year
2007-08. OCWD operates an extensive network of recharge basins to increase recharge of
surface water into the groundwater basin to support groundwater production. OCWD monitors
the basin by collecting groundwater elevation and quality data from nearly 700 wells, including
over 400 OCWD-owned monitoring wells, manages an electronic database that stores water
elevation, water quality, production, recharge and other data on over 2,000 wells and facilities
within and outside OCWD boundaries.
An OCWD-operated water recycling plant provides up to 100 million gallons per day of
advanced tertiary -treated wastewater that supplies recharge operations and a seawater
intrusion barrier operated to protect the basin's water quality. OCWD manages groundwater
storage and water levels within an established operating range which has resulted in
sustainable conditions with no unreasonable and significant undesirable results.
The Sustainability Goal for the OCWD Management Area is to continue to sustainably manage
the groundwater basin to prevent conditions that would lead to significant and unreasonable (1)
lowering of groundwater levels, (2) reduction in storage, (3) water quality degradation, (4)
seawater intrusion, (5) inelastic land subsidence and (6) adverse impacts on hydrologically
connected surface water.
2017 BASIN 8-1 ALTERNATIVE Overview 6
Basin 8-1 Overview
3. SOUTH EAST MANAGEMENT AREA
The South East Management Area contains portions of Irvine Ranch Water District (IRWD), El
Toro Water District (ETWD), and the City of Orange. The area covered this management area
is essentially an extension of the main basin and was formed to comply with the requirement
that the entirety of Basin 8-1 be covered by a responsible agency.
There is relatively little existing, or potential, groundwater development within the South East
Management Area. What pumping does occur is less than 200 acre -feet -per -year (afy), which
is much less than the total recharge to the area. Water levels and storage levels are steady.
The Sustainability Goal for the South East Management Area is to recognize it is a small part of
the larger groundwater basin that is managed by OCWD. Nevertheless, groundwater levels and
water quality will be monitored to assure that conditions do not lead to significant and
unreasonable (1) lowering of groundwater levels, (2) reduction in storage, (3) water quality
degradation, (4) inelastic land subsidence, (6) unreasonable adverse effect on surface water
resources, and (6) adverse impacts on hydrologically connected surface water.
4. SANTA ANA CANYON MANAGEMENT AREA
The Santa Ana Canyon Management Area covers the easternmost extent of Basin 8-1. The
water resources in the Santa Ana Canyon Management Area include the Santa Ana River and
groundwater. Groundwater is primarily located in a thin alluvial aquifer that is 90 to 100 feet
thick and is a combination of infiltrated surface water and groundwater inflow from the adjacent
foothills.
Groundwater pumping in this management area is primarily used for irrigation with a minimal
amount used for potable purposes. The amount of groundwater pumping is small relative to the
large volumes of flow in the canyon provided by the Santa Ana River and monitoring indicates
there are no depletions of interconnected surface water that have significant and unreasonable
adverse impacts on beneficial uses of the surface water. There are no groundwater withdrawals
within the areas covered by the Cities of Anaheim, Chino Hills, and Yorba Linda; Riverside
County; and Yorba Linda Water District.
OCWD has water rights to all Santa Ana River flows released through Prado Dam. For the area
within its boundary, OCWD has the legal authority through the OCWD Act to require reporting of
groundwater production and to charge groundwater pumping assessments for groundwater
production. OCWD also monitors surface water flow and quality as well as groundwater levels
and quality throughout the Santa Ana Canyon Management Area.
The Sustainability Goal for the Santa Ana Canyon Management Area is to continue monitoring
sustainable conditions and monitor to ensure that no significant and unreasonable results occur
in the future.
2017 BASIN 8-1 ALTERNATIVE Overview 7