HomeMy WebLinkAboutCC AG PKT 2002-11-12 #M AGENDA REPORT
DATE: November 12, 2002
TO: Honorable Mayor and City Council
THRU: John B. Bahorski, City Manager
FROM: Douglas A. Dancs, P.E., Director of Public Works / City Engineer
SUBJECT: BOEING SPACE AND COMMUNICATIONS
HEADQUARTERS SITE - WATER SUPPLY ASSESSMENT
SUMMARY
Staff has effectuated preparation of a Water Supply Assessment for the subject development
in compliance with recently enacted SB 610 (Section 10910 et seq. of the Water Code). Upon
approval by the City Council the Water Supply Assessment will become part of the Draft
Environmental Impact Report for the Project.
BACKGROUND:
As a public water supply system, the Department of Public Works Water Division is required
by Section 10910 et seq. of the Water Code to provide to the City of Seal Beach with a Water
Supply Assessment prior to approval of the proposed Boeing Space and Communication
Headquarters Site Project. This requirement is the result of the passage of SB 610 (Costa bill)
approved by the Governor on October 9, 2001.
According to Section 10912 of the Water Code (amended) the water supply assessment and
other requirements of the SB 610 applies to any proposed development project defined as,
among others, a proposed shopping center or business establishment employing more than
1,000 persons or having more than 500,000 square feet of floor space; or a proposed
commercial office building employing more than 1,000 persons or having more than 250,000
square feet of floor space; or 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; or a mixed use project that
includes one or more elements of the previously mentioned projects.
Since the proposed Boeing Development falls within the requirements of the Costa bill, the
Water Supply Assessment must include, among other information, an identification of
existing water supply entitlements, water rights, or water service contracts relevant to the
identified water supply for the proposed project and water received in prior years. Pursuant to
those entitlements, rights, or contracts. The bill also requires that the Water Supply
Assessment be completed within 90 days of the request from the City.
Agenda Item
PROTECT DESCRIPTION
The Project is located in the City of Seal Beach in northwest Orange County. The 107 -acre
site is located southwest of the intersection of Seal Beach Boulevard and Westminster
Boulevard. The Project consists of four Planning Areas described as follows:
• Planning Area 1 — Approximately 41 acres for Core Campus of BSC. Existing
345,000 square -feet (SF) of space including manufacturing, office, research and
development, light industrial, warehouse and distribution, and support services. An
additional 345,000 SF is planned for this Planning Area.
• Planning Area 2 — Approximately 16 acres and 345,000 SF of existing
manufacturing, research, development and office space. Planning Area 2 includes
allowances for new business park uses, including manufacturing, office, research and
development, light industrial, warehouse and distribution, and support services.
Planning Area 2 will not exceed 345,000 SF of new or existing facilities.
• Planning Area 3 — Approximately 45 acres with up to 628,000 SF space for Business
Park which may include manufacturing, office, research and development, light
industrial, warehouse and distribution, and support services.
• Planning Area 4 — Approximately 5 acres with 32,500 SF of space planned for 120 -
room hotel and commercial land uses.
FINDINGS AND CONCLUSIONS
The Project will add additional water demands on the City water system amounting to less
than 300 acre -feet per year. Pursuant to CEQA Guidelines § 15083.5, this Assessment
concludes that, although the projected additional demand was not explicitly included in the
City's latest Urban Water Management Plan, the total projected water supplies available
during normal, single -dry, and multiple -dry water years as shown in this Water Supply
Assessment, will meet the projected water demand associated with the proposed project, in
addition to the system's existing and planned future uses.
The developer will be required to pay for all capital and facility upgrades that may be required
to deliver and convey the water supply requested.
FISCAL IMPACT:
There is no fiscal impact associated with the proposed action. All costs associated with this
report and future improvements required would be paid for by the developer.
Agenda Item
RECOMMENDATION:
It is recommended that the City Council approve the Water Supply Assessment prepared for
Boeing Space and Communications Headquarters Site.
Written By:
Ergun Bakall, P.E.,
Water Engineering Consultant
Prepared By: Concur:
/azadar 2117''
Mark K. Vukojevic, P.E. 4- Dou Dancs, P.E.,
Deputy City Engineer Director of Public Works /City Engineer
NOTE ; i *
iv
PROVED:
0
Jo> .. Bahorski, City Manager
Agenda Item
WATER SUPPLY ASSESSMENT
BOEING SPACE AND COMMUNICATIONS
SPECIFIC PLAN
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i _ 3 CITY OF SEAL BEACH
November 2002
BOEING SPACE AND COMMUNICATIONS
SPECIFIC PLAN
WATER SUPPLY ASSESSMENT
PURPOSE OF ASSESSMENT
City of Seal Beach Water Division (Division) is a Public Water System that provides
potable water service within the corporate boundaries of the City. As the public water
system, Division is required by Section 10910 et seq. of the Water Code (the Code)
to provide the City of Seal Beach (the City) with an assessment of water supply
availability ( "assessment ") for defined types of projects with large water demands.
The project entitled "Boeing Space and Communications Specific Plan" (Project) falls
within the definitions of a "project" within the Code requiring an assessment. The City
is required to include this assessment in the environmental document for the Project,
and, based on the record, determine whether projected water supplies are sufficient
for the Project and existing and planned uses.
Beginning in 2002, Section 10910 of the Code contains new requirements for the
information to be utilized and presented in the assessment. The newly amended
statute also calls for the assessment to be submitted before the lead agency begins
to prepare the environmental document required for a project. At this time the CEQA
process is at its inception and only a scoping meeting has been held.
FINDINGS AND CONCLUSIONS
The Project will add additional water demands on the City water system amounting to
less than 300 acre -feet per year. Pursuant to CEQA Guidelines §15083.5, this
Assessment concludes that, although the projected additional demand was not
explicitly included in the City's latest Urban Water Management Plan, the total
projected water supplies available during normal, single -dry, and multiple -dry water
years as shown in this Water Supply Assessment, will meet the projected water
demand associated with the proposed project, in addition to the system's existing and
planned future uses.
PROJECT DESCRIPTION .
The Project is located in the City of Seal Beach in northwest Orange County. The
107 -acre site is located southwest of the intersection of Seal Beach Boulevard and
Westminster Boulevard. The Project consists of four Planning Areas described as
follows:
Boeing WSA
City of Seal Beach Water Supply Assessment '
Boeing Space and Communications Specific Plan
• Planning Area 1 — Approximately 41 acres for Core Campus of BSC. Existing
345,000 square -feet (SF) of space including manufacturing, office, research
and development, light industrial, warehouse and distribution, and support
services. An additional 345,000 SF is planned for this Planning Area.
• Planning Area 2 — Approximately 16 acres and 345,000 SF of existing
manufacturing and research and development and office space. Planning
Area 2 includes allowances for new business park uses, including
manufacturing, office, research and development, light industrial, warehouse
and distribution, and support services. Planning Area 2 will not exceed
345,000 SF of new or existing facilities.
• Planning Area 3 — Approximately 45 acres with up to 628,000 SF space for
business park which may include manufacturing, office, research and
development, light industrial, warehouse and distribution, and support
services.
• Planning Area 4 — Approximately 5 acres with 32,500 SF of space planned
for 120 -room hotel and commercial land uses.
SUPPORTING AND RELEVANT DOCUMENTS
The City of Seal Beach has last prepared a Water System Master Plan in 1996. In
1999, the City retained the services of AKM Consulting Engineers to prepare a
"Review and Update of Water System Master Plan ". The City has also prepared an
"Urban Water Management Plan - 2000" which was adopted by City Council in April
2001 and submitted to State Department of Water Resources. The UWMP contains
defined elements as listed in the statute (Water Code Section 10631, et seq.), and as
a result, is rather limited in the treatment of supply and demand issues. (The UWMP
is required to be updated in years ending with "five" and "zero," thus the City's next
update of that document is required in 2005.) However, an interim update of the
City's UWMP has been drafted and will be presented to the City Council for approval.
Because the interim update has yet to be approved by the City Council, this
Assessment relies primarily on the information contained in the 2000 UWMP. It
should be noted that nothing contained in the draft UWMP update would change this
Assessment's conclusion that the total projected water supplies available during
normal, single -dry, and multiple -dry water years will meet the projected water
demand associated with the proposed project in addition to the system's existing and
planned future uses.
AKM Consulting Engineers are currently in the process of finalizing a hydraulic model
of the City Water System and Capital Improvement Program.
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City of Seal Beach Water Supply Assessment
Boeing Space and Communications Specific Plan
WATER DEMANDS
Consistent with the City's Water Master Plan and local standards of practice, the total
water demand for the proposed project is estimated to be less than 300 acre -foot per
year.
SUPPLIER SERVICE AREA
The City of Seal Beach is located on the coast in the northwest corner of Orange
County. It occupies an area of about 11.6 square miles (7369 acres). The City
provides water service to all residential and industrial and most commercial uses.
Seal Beach has a Southern California coastal climate. Summers are mild and dry,
and winters are cool, with an annual average of 12 inches of precipitation, with most
of the rainfall occurring between November and March. The region is subject to wide
variations in annual precipitation. Late night and early morning marine layer helps
reduce summer irrigation requirements. Elevations within the City vary between 5 to
50 feet above sea level. There are virtually no days where temperatures fall below
freezing.
Deviation from the average annual precipitation was experienced in 1998 due to the
El Nino conditions for the western United States. The current dry condition is
unprecedented in recorded history of the area.
The majority of the City land use is dedicated to military use (5000 acres) all of which
is owned by United States Government. Low density residential use in the form of
single family dwellings, are located in communities known as College Park East,
College Park West and Marina Hill. Medium density residential uses are located in
Bridgeport, Old Town and Leisure World. High- density residential communities
comprise Rossmore Condominiums, Surfside Colony, River Beach and portions of
Old Town. Commercial areas are located along Main Street in Old Town and Bixby
Ranch. Industrial and manufacturing uses consisting of space and military
applications are concentrated at the confluence of Seal Beach Boulevard and
Westminster Avenue.
WATER SUPPLY SOURCES
The City of Seal Beach has two sources of water supply: local groundwater from
Orange County Main Groundwater Basin and imported water from Metropolitan
Water District of Southern California (Metropolitan) through Municipal Water District
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City of Seal Beach Water Supply Assessment
Boeing Space and Communications Specific Plan
of Orange County (MWDOC). These supply sources are discussed below under the
headings "Groundwater" and "Imported Supplies"
ASSESSMENT OF DEMANDS
Water demands are reviewed in this assessment for two conditions:
• Existing and committed demand (without the Project) ( "baseline ") This
provides a baseline condition as of the date of the assessment, consisting of
existing land uses, plus development that is already in progress.
• Existing and committed demand, plus the Project (with — Project)
COMPARISON OF DEMAND AND SUPPLY
Future water demands and supplies, starting in 2005, were compared in two different
ways, based on the two projections described above (baseline and with - Project):
• On a total annual quantity basis (stated in acre -feet per year (AFY))
• On a peak flow (maximum day) basis (stated in gallons per minute (gpm))
• Demand and supply were compared under three climatic conditions: base
(normal) conditions and single -dry and multiple -dry year conditions. These
conditions are applicable to comparisons of annual demands and not the peak
flow demands. Peak flow is a measure of the water delivery system's ability to
meet the highest — day demands placed on the system within a given year.
Peak demands occur during the hot, dry season and as a result do not vary
significantly by dry-year conditions whereas dry year conditions significantly
increase total annual demands. For the purposes of this assessment total
annual dry — year demands were assumed to be 7 percent greater than the
normal demands.
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City of Seal Beach Water Supply Assessment .
Boeing Space and Communications Specific Plan
NEAR -TERM HISTORICAL DEMANDS
The following summarizes the actual demands on the City water system for the past
five years:
Year Groundwater (AF) Imported Water (AF) Total (AF)
1997 3890 240 4130
1998 2850 1050 3900
1999 3110 1014 4124
2000 3160 830 3990
2001 3170 930 4100
SUMMARY OF RESULTS OF DEMAND - SUPPLY COMPARISONS
Listed below are Figures provided in this assessment, comparing projected water
demands and supplies under the two development conditions:
Figure 1: Normal Year Supply and Demand
Figure 2: Single Dry -Year Supply and Demand
Figure 3: Multiple Dry -Year Supply and Demand
Figure 4: Maximum Day Supply and Demand
Notes:
1- Projected demand figures are consistent with the City's latest UWMP -2000.
They may have been rounded up in some instance for clarity. Demand figures
for year 2002 are actual numbers. Due to local dry year conditions actual
demand for year 2002 is higher than normal year projected demand.
Projections for year 2005 and later are normal year demand projections as
noted.
2- Single Dry- Year and Multiple Dry-Year supply figures have been updated
based on new information available since the adoption of UWMP -2000.
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City of Seal Beach Water Supply Assessment
Boeing Space and Communications Specific Plan
Figure 1
Seal Beach Normal Year Supply and Demand
14000 - -
YA: Sd•.Wffi ., rC' 5
12000 '
„.y, . ; •, . '
10000 = —
m •
m 8000 V — 0 Groundwater Supply
a m Imported Supply
d
= A r .i
.y, = — 40— Demand with Project
6000 — _.. .r. z.�. .. -
•
- 4— Baseline Demand
Q 4000 dd
t'=
2000 I = :,= : - —
4 - :: ,, e ,,4 . i i : .1 , t v , , .,„, „ %.......t: 0 : - - _.•. 4
T 1
2002 2005 2010 2015 2020
(in Acre -Foot) 2002 2005 2010 2015 2020
Current Supplies
Imported Supplies 4300 4300 4300 4300 4300
Groundwater Supplies 7200 7200 7200 7200 7200
Total Supplies 11500 11500 11500 11500 11500
Baseline Demand 4250 4200 4310 4420 4580
Demand with Project 4550 4500 4610 4720 4880
. Reserve Supply 6950 . 7000 6890 6780 6620 .
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City of Seal Beach Water Supply Assessment .
Boeing Space and Communications Specific Plan
Figure 2
Seal Beach Dry -Year Supply and Demand
14000 0 , , ,, „, . . ; • y . .,8
12000
10000 ---- --
O Groundwater Supply
a 8000 — 4 .
Imported Supply
,2; 6000 — _ } Demand with Project
a) . - _ w –*– Baseline Demand
L
V
< 4000 - " .- — t
=M I.
2000 • -
;' r # y . fi x: . . ,
0 • i ,
2002 2005 2010 2015 2020
(in Acre -Foot) 2002 2005 2010 2015 2020
Current Supplies
Imported Supplies 4300 4300 4300 4300 4300
Groundwater Supplies 7200 7200 7200 7200 7200
Total Supplies 11500 11500 11500 11500 11500
Baseline Demand _ 4548 4494 4612 4730 4900
Demand with Project 4869 4815 4933 5050 5222
Reserve Supply 6631 6685 6567 6450 6278
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City of Seal Beach Water Supply Assessment
Boeing Space and Communications Specific Plan
Figure 3
Seal Beach Multiple Dry -Years Supply and
Demand
14000 - ..,
12000 c ._ =„, , =; .
P 00 100 - u
•
L. 8000 — .; . �, , r • f , , �. =Groundwater Supply
.'$ g - F ;7 ;.• •- WM Imported Supply
m ,:;, .�_. . Demand with Project
LL 6000 --2- r x : : —;
--.— Baseline Demand
Q 4000 — , 01,..fi ,. - :
•� Al `.� � e F
3 • e a 7, w ,: f.4
2000 : • = • „ ii..i . r ' - w
0 •r. , {a wi. v... u• ..x
2002 2005 2010 2015 2020
(in Acre -Foot) 2002 2005 2010 2015 2020
Current Supplies
Imported Supplies 4300 4300 4300 4300 4300
Groundwater Supplies 7200 7200 7200 7200 7200
Total Supplies 11500 11500 11500 11500 11500
Baseline Demand 4578 4494 4612 4730 4900
Demand with Project 4869 4815 4933 5050 5222
Reserve Supply 6631 6685 6567 6450 6278
Boeing WSA 8
City of Seal Beach Water Supply Assessment
Boeing Space and Communications Specific Plan
Figure 4
Seal Beach Maximum -Day Supply and Demand
8000 - ; , _ ...
7000 -- - 1i 3 £ *. E .. ,',...
.11a:
6000 —
t
5000 • v • - - • ' - • � 4, «, • • 4 =Groundwater Supply
g. 4000 ` • '` �. , ..Z . : I. '.. Imported Supply im rn t -._ Demand with Project
3000 — "Ti , ; '` c: : ; — . — Baseline Demand
2000 , x ` N ` � v ' � , 4 ...
1000 * ., - . ' -
I 1 1 I
2002 2005 2010 2015 2020
(in gpm) 2002 2005 2010 2015 2020
Current Supplies
Imported Supplies 2700 2700 2700 2700 2700
Groundwater Supplies 4500 4500 4500 4500 4500
Total Supplies 7200 7200 7200 7200 7200
Baseline Demand 4800 4800 4800 4800 4800
Demand with Project 5150 5150 5150 5150 5150
Reserve Supply 2050 2050 2050 2050 2050
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City of Seal Beach Water Supply Assessment
Boeing Space and Communications Specific Plan
As shown in the preceding Figures, the City supplies remain constant between
normal, single -dry and multiple -dry years. This is due to the fact that groundwater
and Metropolitan imported water account for all of the City water supply.
Groundwater production typically remains constant. It may even be increased in
cycles of dry years by temporarily increasing overdraft of the basin, as groundwater
producers reduce their demand on imported supplies to secure reliability. As to
imported water, Metropolitan projects that through the continued implementation of
Metropolitan's supplies under development, it can meet 100 percent of its member
agencies' supplemental water demands over the next 20 years, even in a repeat of
the worst drought. (See below, for information regarding imported water supplies.)
GROUNDWATER
The water supply resources in Orange County are enhanced by the existence of a
large groundwater basin. The City of Seal Beach Water Division operates ground
water producing facilities in the Orange County Groundwater Basin ( "Basin ").
The City of Seal Beach produces, on the average, 3000 acre -feet of water per year
(AFY) from the Orange County groundwater basin. The water is produced by three
wells, from an average depth of 800 feet (Table 3). Although there has been some
saline intrusion into the upper aquifers of the Basin, it has not affected the strata from
which the City wells produce. Water quality is within standards set for acceptable
drinking water by the federal government and the California Department of Health
Services.
• Beverly Manor Well -The well, constructed in 1969, is housed in an enclosed
building along -side the two booster pumps referred to as the Beverly Manor -
Booster. The well pump, driven by a natural gas engine, pumps directly into
the Beverly Manor Reservoir. It has a capacity of 2000 gallons per minute
(gpm)
• Bolsa Chica Well -This well, constructed in 1979, is located on Bolsa Chica
Road south of the San Diego Freeway. The well pump can be driven with an
electric motor as well as a natural gas engine. The well discharge pressure is
maintained by varying the speed of electric motor by means of Toshiba
Variable Frequency Drive or by a Murphy controller acting on the natural gas
engine. The maximum output into the distribution system is 2500 gpm at 68
psi.
• Leisure World Well - Leisure World Well is located behind a fenced enclosure
in Leisure World on Beverly Manor Road. The well pump is driven by an
electrical motor. The well pumps into Beverly Manor Reservoir but has the
ability to pump directly into the Leisure World Distribution System. Capacity of
the well is about 2800 gpm.
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City of Seal Beach Water Supply Assessment
Boeing Space and Communications Specific Plan
• Well No.7 - Well No.7, located on the south side of Westminster Avenue and
just east of Seal Beach Boulevard, has not been utilized in recent years and is
on "inactive" status.
Orange County Water District (OCWD) under the Orange County Water District Act,
Water Code App., Ch. 40 (the Act), manages the Basin. The Act empowers OCWD to
impose replenishment assessments and basin equity assessments on production
and to require registration of water producing facilities and the filling of certain
reports; however OCWD is expressly prohibited from limiting extraction unless a
producer agrees (Section 40- 2(6)(c)) and from impairing vested rights to the use of
water (Section 40 -77). Thus, producers may install and operate production facilities
under the Act; OCWD approval is not required.
Although the rights of the producers within the Basin vis a vis one another have not
bee adjudicated, they nevertheless exist and have not been abrogated by the Act.
(Section 40 -77). The rights consist of municipal appropriators' rights and may include
overlaying and riparian rights.
The Basin is described at pages 3 -1 through 3 -14 of the Orange County Water
District Master Plan Report, dated April 1999 (MPR) and incorporated herein by
reference.
The Department of Water Resources (DWR) has identified the Basin as overdrafted
in its most current bulletin that characterizes the condition of the Basin, Bulletin 118.
Bulletin 118 is currently being updated by DWR. The efforts being undertaken by
OCWD to eliminate long -term overdraft in the Basin are described in the MPR,
including in particular, Chapters 4, 5, 6, 14 and 15 of the MPR. Although the water
supply assessment statute (Water Code Section 10910(f)) refers to elimination of
"long -term overdraft ", overdraft refers to conditions which may be managed for
optimum basin storage, rather than eliminated. The Act defines annual groundwater
overdraft to be the quantity by which production exceeds the natural replenishment of
the Basin. Accumulated overdraft is defined in the Act to be the quantity of water
needed in the groundwater basin forebay to prevent landward movement of seawater
into the fresh groundwater body. Seawater intrusion control facilities have been
constructed by OCWD since its inception, and have been effective in preventing
landward movement of seawater. These facilities allow greater utilization of the
storage capacity of the Basin.
OCWD has invested over $250 million in seawater intrusion control (injection
barriers); recharge facilities, laboratories, and Basin monitoring to effectively manage
the Basin. Consequently, although the Basin is defined to be in an "overdraft"
condition, it is actually managed to allow utilization of up to 500,000 AF or more of
storage capacity during dry periods, acting as an underground reservoir and buffer
against drought periods. OCWD stated goal is to operate the Basin to maintain
accumulated overdraft of 200,000 AF. If the Basin is too full, artesian conditions can
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City of Seal Beach Water Supply Assessment
Boeing Space and Communications Specific Plan .
occur in many areas including the coastal zone, causing rising water conditions and
water logging, both adverse conditions.
OCWD continues to develop new replenishment methods and supplies, recharge
capacity and basin protection programs to meet the projected demand from the Basin
during normal and drought periods.
Groundwater conditions in the Basin are influenced by the natural hydrologic
conditions of rainfall, groundwater seepage and stream flow. Groundwater extraction
and injection through wells, use of imported water for groundwater replenishment,
and water use efficiency practices also influence the Basin.
Groundwater is not actually an indigenous source of supply but rather storage of
supply that includes natural runoff, treated wastewater, and imported water. Runoff
from local rainfall is the main source of recharge for the smaller basins and accounts
for some of the recharge of the Basin. The amount of runoff recharge is highly
variable and can only be estimated. Most of the recharge of the Basin is from Santa
Ana River flow percolated in- stream or diverted to off - stream spreading basins
operated by the OCWD. OCWD is responsible for the protection of water rights to the
Santa Ana River in Orange County as well as management and replenishment of the
Basin.
The Basin underlies the north and central area of Orange County. The annual
production of the Basin averaged 328,000 acre -feet between 1995 and 1999,
generally increasing with time.
Santa Ana River base flow is comprised mainly of treated wastewater discharged
from treatment plants in Riverside County and San Bernardino County. Thus, about
half of the water recharging the aquifer is incidentally recycled wastewater. In
addition, OCWD injects about 5,000 AF /yr of recycled wastewater treated from its
Water Factory 21 plant into the Basin near the coast as a sea water intrusion barrier.
The OCWD recharge operations both expand the production capability of the Basin
and prevent seawater intrusion into the aquifers.
Production capability of the Basin is being increased by increasing both the recharge
supply and the number of production wells for the extraction of water from the Basin.
Aquifers that presently store low- quality water (water high in nitrates, salt color, or
industrial pollutants) are being pumped, and the produced water is being treated at
local water treatment plants or blended with potable water. Drawing out low- quality
• water and replacing it with high- quality recharge water anticipate aquifer cleanup.
The so called "In- Lieu" Program also helps groundwater production and quality by
replacing quantities of groundwater with imported water to reduce groundwater
pumping in coastal areas. The In -Lieu Program has served as an efficient
groundwater replenishment method since the 1970s. Currently, the In -Lieu Program
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City of Seal Beach Water Supply Assessment
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is designated as the Basin Water Supply Management Program under the terms of
the 1997 Basin Water Management Agreement with the MWD.
OCWD is required to annually investigate the condition of the Basin, assess overdraft
and accumulated overdraft, and determine the amount of water necessary for
replenishment (Section 40 -77). OCWD has studied the Basin replenishment needs
and potential projects to address growth in demand until 2020. This is described in
detail in the OCWD MPR. In April, 2002, the Board of Directors of OCWD declared by
Resolution No. 02 -4 -63 that the accumulated overdraft as of June 30, 2001 was
328,000 AF and that the estimated annual overdraft for the current water year July
1,2001 to June 30, 2002 was 95,000 AF; and that the estimated annual overdraft for
the ensuing water year from July 1, 2002 to June 30, 2003 would be 95,000 AF.
With groundwater pumping expected to be around 380,000 AF for the current water
year, the basin's accumulated overdraft will significantly increase. In a memorandum
dated June 3, 2002 to the OCWD Board of Directors, General Manager Virginia
Grebbien stated that the accumulated overdraft would be slightly over 400,000 AF on
June 30, 2002. The memorandum further offered three potential solutions to the
problem:
1- Modifiy the imported in -lieu program to allow much greater replenishment
deliveries to the basin.
2- Develop greater recharge capacity, which would give OCWD the ability to sink
larger quantities of imported replenishment water when available.
3 -Lower the Basin Production Percentage (BPP)
As of the date of this Water Supply Assessment, it had not been determined what
course of action, if any, the OCWD Board of Directors would pursue. It should be
noted the Basin is not operated on an annual "safe- yield" basis. (OCWD MPR,
Section 3.2). OCWD manages the overdraft to maximize utilization of the Basin for
annual production and recharge operations. Overdraft varies over time as the Basin
is impacted by availability of recharge water and hydrological cycles.
IMPORTED SUPPLY
Treated imported water is supplied to the City from the importation and delivery
system of the Metropolitan. Metropolitan delivers water through the institutional
arrangements with MWDOC at service connection referred as OC -35. MWDOC in
turn delivers water supplies to the facilities owned and operated by West Orange
County Water Board (WOCWB), a joint powers agency, of which the City is a
member. The City owns 14 percent of the WOCWB facilities with an estimated
delivery capacity of 4600 gpm, equivalent to 7435 AFY. The City has not traditionally
utilized its full capacity from this source. Therefore, in this assessment only 2700
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City of Seal Beach Water Supply Assessment
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gpm, equivalent to 4300 AFY, which represents City's normal usage, has been used
for comparison purposes.
Metropolitan supplies its member agencies with wholesale imported water provided
by the Colorado River Aqueduct and State Water Project system. Metropolitan is the
only source of imported water presently available to the City. Water in Southern
California is provided through a complex system of infrastructure operated by many
different institutional entities. More than 300 public agencies and private companies
provide water on a retail basis to approximately 17 million people living in a 5,200
square -mile area. Metropolitan is the primary wholesale provider of imported water
for the region. Metropolitan serves 26 member agencies, comprising 14 cities, 11
municipal water districts, and 1 county authority. Metropolitan's member agencies, in
turn, serve customers in more than 145 cities and 94 unincorporated communities.
Metropolitan was formed in 1928 under the Metropolitan Water District Act "for the
purpose of developing, storing, and distributing water" to the residents of Southern
California. Metropolitan's initial function was the construction and operation of the
Colorado River Aqueduct to supplement local supplies. By the early 1970s
Metropolitan was receiving delivery of imported water from the California Department
of Water Resources using the newly constructed State Water Project facilities.
The State Water Project (SWP) conveys water from Northern California to areas
south of the Sacramento -San Joaquin Delta through a series of rivers, canals,
reservoirs, aqueducts, and pumping plants. Water from the SWP originates at Lake
Oroville, located on the Feather River in Northern California, and subsequently flows
into the Sacramento -San Joaquin Delta. From the delta, the California Aqueduct
transports the water through the Central Valley and into the Southern California. This
system is owned and operated by the State Department of Water Resources (DWR).
Colorado River water is conveyed from the California- Arizona border to the
metropolitan area via the Colorado River Aqueduct (CRA). Its 242 -mile journey
begins from the intakes at Lake Havasu to the terminal reservoir known as Lake
Matthews, located near the City of Riverside. The CRA is owned and operated by
MWD.
Both the Northern California and Colorado River supplies, however, may be facing
potential and uncertain reductions. It is projected that the SWP supply to agencies
south of the Delta will be reduced due to increased use within the areas of its origin.
In the past decade, deliveries from the SWP have been reduced by nearly ten
percent in dry years. Moreover, the growing environmental challenges associated
with the San Francisco Bay- Sacramento /San Joaquin Bay Delta (Bay - Delta), such
as saltwater intrusion from the San Francisco Bay and the return flow of the Delta
agricultural irrigation water, have threatened to degrade the quality of water Southern
California receives from the SWP. Contaminants such as bromide, Total Organic
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Carbon, and pathogens are a small sampling of water quality concerns over SWP
water.
Southern California is also facing major cutbacks in the water supply traditionally
drawn from the Colorado River. This resource will undergo reductions as result of
U.S. Supreme Court decision. Under a 1922 agreement, California is allowed 4.4
million acre -feet of water each year from the Colorado River. Over a period of time,
however, the State has been diverting un- utilized and surplus water when it has been
available. California has relied on this "extra" water, as it has had to contend with the
growing demands of the region. During the last five years, California water agencies
with rights to the Colorado River (including Metropolitan) have averaged 5.2 million
acre -feet annually. Due to increased demand and competition from the six other
states that draw from the river, California has now been obligated to develop a water
plan to stay within the state's 4.4- million acre -foot apportionment. The proposal
balances storage programs with increased conservation efforts and water transfers.
Imported water supplies are subject to availability. To assist local water providers in
assessing the adequacy of local water supplies that rely in whole or in part on
Metropolitan imported supply, Metropolitan has provided information concerning the
availability of the supplies to its entire service area. This report, entitled "Report on
Metropolitan's Water Supplies" (February 11, 2002) ( "Metropolitan Report"), is
consistent with Metropolitan's Regional Urban Water Management Plan (December,
2000) ( "RUWMP ").
In order to assure supply reliability for its service area, Metropolitan has developed its
Water Resource Strategy. The key elements of Metropolitan's strategy are:
• Portfolio of Diversified Supplies: Metropolitan continues to develop a portfolio
of diversified supplies. The diverse water project investments reduce the risk
of failure in any single part of the portfolio. Risks stem from cost, quality, or
supply availability. It also reduces the potential impact of a severe drought or
an emergency such as a major earthquake. The portfolio of diversified
supplies avoids the pitfalls of "putting all your eggs in one basket."
• Supply Reserves to Mitigate Uncertainties: Metropolitan plans to mitigate for
supply uncertainties by continuing to secure supplies and build infrastructure
improvements that are available in advance of the time of need and can
provide back up capabilities. This adaptive management approach creates
supply reserves that maintain Metropolitan's flexibility in responding to
changes in demand and supply conditions.
• New Rate Structure: Metropolitan's Board of Directors approved a new rate
structure in October 2001. The rate structure provides the necessary
financing capabilities to support the Integrated Resources Plan (IRP) and
strategic planning vision that Metropolitan is a regional provider of services,
maintains the reliable delivery of imported water supplies, encourages the
development of additional local supplies like recycling and conservation, and
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City of Seal Beach Water Supply Assessment
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accommodates a water transfer market. Through its regional services,
Metropolitan ensures a baseline of reliability and quality for imported water
deliveries in its service area. By unbundling its full - service water rate,
Metropolitan provides greater opportunity for member agencies to
competitively manage their supplies and demand to meet future needs in a
responsible, cost effective manner.
• Implementing water management programs that support the development of
cost - effective local resources: Metropolitan has established and implemented
programs to provide financial incentives to member agencies in the
development of local resources. These programs include the Local Projects
Program (water recycling and groundwater recovery), Conservation Program,
and Request- for - Proposal process for ocean desalination projects. These
programs are meeting the resource objectives in the IRP.
The status and progress of Metropolitan's efforts in implementing programs to
support the development of conservation and local resources management
programs are documented in Metropolitan's RUWMP and Metropolitan's Annual
Progress Report to the California State Legislature on Achievements in
Conservation, Recycling and Groundwater Recharge, dated February 1, 2002.
• Securing additional imported supplies through programs that increase the
availability of water delivered through the Colorado River Aqueduct and the
California Aqueduct: Metropolitan has implemented several programs to
continue the reliable deliveries of water supplies through the Colorado River
Aqueduct, the California Aqueduct and the development of in -basin
groundwater storage. These efforts include participating in federal and
state initiatives such as the California Water Use Plan for the Colorado
River, CALFED for the Bay - Delta, and the Sacramento Valley Water
Management Agreement. Beyond these initiatives, Metropolitan has
acquired additional supplies through cooperative agreements and business
partnerships with entities in the Central Valley and within the Colorado River
system to implement water transfers, storage, conservation and land
management programs. Finally, in accordance with Metropolitan's IRP and
Strategic Plans, Metropolitan and the member agencies have moved ahead
in maximizing the use of available water supplies through in -basin
groundwater conjunctive use programs.
The status and progress of Metropolitan's efforts in implementing programs to
secure additional supplemental imported water supplies are documented in the
Metropolitan's RUWMP and the document entitled, "Report on Metropolitan's
Water Supplies" (Metropolitan Report)
• Providing the infrastructure needed to integrate imported and local sources .
of supply: Metropolitan's Capital Investment Plan (CIP) includes projects
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that have been identified from its studies of projected water needs that are
embodied in Board - approved documents such as the IRP, Distribution
System Overview Study, and the Chief Executive Officer's Business Plan.
The identification, assessment and prioritization of 155 reliability and
rehabilitation projects have been completed in the CIP.
The status and progress of Metropolitan's infrastructure improvements are
documented in Metropolitan's CIP. This plan is presented to Metropolitan's Board
of Directors as part of the annual budget review.
• Establishing a comprehensive management plan for dealing with periodic
surplus and shortage conditions: In April 1999, Metropolitan's Board of
Directors adopted the Water Surplus and Drought Management Plan
(WSDM Plan). This plan will guide the management of Metropolitan's water
supplies during surplus and shortage conditions to achieve the reliability
goals of the IRP.
The establishment of a comprehensive management plan for dealing with periodic
surplus and shortage conditions is documented in the RUWMP and Metropolitan
Report No. 1150, Water Surplus and Drought Management Plan.
Approach
The approach to evaluating the availability of Metropolitan's supplies involves three
basic steps: (1) forecast supplemental water demands, (2) assess Metropolitan's
supply capabilities, and (3) compare the supplemental demand forecasts and supply
capabilities.
Demand Forecasts
Water demands on Metropolitan are projected according to four key parameters:
retail demands, local replenishment demands, local supplies, and Metropolitan
system storage requirements. The methodology and estimates of water demand
projections are documented in Appendix "A" of the Metropolitan Report.
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City of Seal Beach Water Supply Assessment
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Demands on Metropolitan
(million acre -feet)
Demands on
Metropolitan
(Average Year) . 2005 2010 2015 2020
MWD RUWMP 1.90 1.95 2.08 2.30
Member Agencies 1.68 1.82 1.94 2.09
Plans
Difference 0.22 0.13 0.14 0.21
11% 7% 7% 9%
1 Based on Metropolitan's Regional Urban Water Management Plan adopted in December 2000.
2 Based on Metropolitan review of urban water management plans submitted by member
agencies in December 2000.
Supply Capabilities
Metropolitan's supply capabilities are the expected quantities of water that can be
provided by specific supply programs included in Metropolitan's resource plan.
Supply capabilities presented in this report vary according to year types (wet,
average, and dry hydrologic conditions). In order to determine Metropolitan's
supply capabilities, available sources of supply have been inventoried and the
associated supply yields have been estimated. The supply inventory and yields
are documented in Appendices "A ", "B ", and "C" of the Metropolitan Report.
Supply Inventory: Metropolitan's available supplies are diverse and include
historical SWP deliveries, Colorado River deliveries (according to Federal
apportionments and guidelines), water transfers and exchanges, storage and
groundwater banking programs, and State and Federal initiatives (such as the
Califomia Water Use Plan for the Colorado River and Delta Improvements).
These programs have been inventoried according to the manner in which they are
delivered to Metropolitan's system. These categories of delivery are: (1) Colorado
River Aqueduct Deliveries, (2) California Aqueduct Deliveries, and (3) In -Basin
Storage Deliveries.
Supply Capabilities: The maximum supply capability of each of the resource
programs has been estimated for various hydrologic events that occur in years
2005, 2010, 2015, and 2020. The hydrologic events include a multiple year dry
period (repeat of 1990 -92 drought), a single dry year- (repeat of 1977 below -
normal conditions), average year (statistical average), and wet year (repeat of
1985 above - normal condition). The expected supply capability has been
estimated according to two key considerations.
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(1) Simulations of deliveries from the Colorado River Aqueduct, California
Aqueduct and in -basin storage. The historical sequence of 77 hydrologic
years from 1922 to 1998 are repeated into the future in order to determine the
Metropolitan's water delivery capabilities under the weather and system
operating conditions for the year types.
(2) Deliveries based on historical record, written contracts or other proof,
financing, and federal, state, and local permits /approvals to the extent each is
applicable.
Supply Sufficiency: The demand forecasts and supply capabilities have been
compared over the next 20 years and under varying hydrologic conditions. These
comparisons determine the supplies that can be reasonably relied upon to meet
projected supplemental demands and to secure reserves that can provide a
"margin of safety" to mitigate against uncertainties in demand projections and
risks in implementing supply programs.
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City of Seal Beach Water Supply Assessment
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Metropolitan's Water Supplies
Colorado River Aqueduct Deliveries
Currently Available: Base Apportionment (Priority 4)
IID /MWD Conservation Program
Interim Surplus Guidelines (ISG) /Priority 5 Apportionment
Off Aqueduct Storage
— Hayfield Storage Program
— Central Arizona Banking Demonstration
Under Development: Coachella & All- American Canal Lining Projects
SDCWA/IID Transfer
PVID Land Management Program
Off - Aqueduct Storage/Transfer Programs
- Cadiz Groundwater Storage and Dry-Year Supply Program
- Lower Coachella Valley Groundwater Storage Program
- Upper Chuckwalla Storage Program
- Central Arizona Banking Program
California Aqueduct Deliveries
Currently Available: SWP Deliveries (Based on historical record)
San Luis Reservoir Carryover
Advance Delivery with Coachella Valley WD and Desert WA
Semitropic Water Banking and Exchange Program
Arvin- Edison Program Water Management Program
San Bernardino Valley MWD Program
Spot Market Transfers (Purchased on as- needed basis)
Under Development: Delta Improvements
Kern Delta Water District Program
Additional Transfers /Storage (San Bernardino Conjunctive
Use Program, Westside Valley transfers, and Eastside
•
Valley Transfers)
In -Basin Storage Deliveries
Currently Available: Diamond Valley Lake (DVL)
Flexible Storage in Castaic Lake and Lake Perris
Groundwater Conjunctive Use Programs
- Long -Term Seasonal Storage Program
- North Las Posas Storage Program
Under Development: Groundwater Conjunctive Use Programs
- Raymond Basin Storage Program
- Proposition 13 Storage Programs
- Additional Programs
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City of Seal Beach -Water Supply Assessment
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Findings
The availability of Metropolitan's water supplies is determined by comparing total
projected water demand and the expected water supply over the next 20 years. .
These comparisons are shown in the following graphs and tables. They
demonstrate that there are sufficient supplies that can be reasonably relied upon
to meet projected supplemental demands and that there are additional reserve
supplies that could provide a "margin of safety" to mitigate against uncertainties
in demand projections and risks in fully implementing all supply programs under
development.
In summary, this analysis finds that current practices allow Metropolitan to bring
water supplies on -line at least ten years in advance of demand with a very high
degree of reliability. If all imported water supply programs and local projects
proceed as planned, with no change in demand projections, reliability could be
assured beyond 20 years.
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City of Seal Beach -Water Supply Assessment
Boeing Headquarters Development
Multiple Dry-year Supply Capability
& Projected Demands
(1990 -92 Hydrology)
4.0
3.5 -
=� 3.0 Demands on MWD.
Supplies Under Development
d 6 2.5 - A. , - R ,
=
CO i= 0 1.5 e r "
0.5
° ,Current Su= lies
4:, ..44-:,
2005 2010 2015 2020
Supply Capability & Potential Reserve or Replenishment
2005 2010 2015 2020
acre -feet eel year)
Current Supplies
Colorado Rive? 992,800 1,131,800 1,183,000 820,000
California Aqueduct 960,300 1,016,100 986,100 960,300
In -Basin Storage 336,700 390,000 390,000 390,000
Supplies Under Development
Colorado Rive? 217,500 118,200 67,000 430,000
California Aqueduct 50,000 245,000 440,000 440,000
In -Basin Storage - 99,100 200,000 200,000
Maximum Supply 2,557,300 3,000,200 3,266,100 3,240,300
Capability
Total Demands on
Metropolitan 2,199,300 2,251,700 2,360,700 2,572,500
(Firm & Replenishment)
Potential Reserve &
System Replenishment 358,000 748,500 905,400 667,800
Supply
1 -- Represents expected supply capability for resource programs.
2 -- Total Colorado River Aqueduct Deliveries are limited to CRA capacity (1,250,000 acre -feet per year) and include
federal apportionments and guidelines, water conservation, water transfers and storage programs
3 -- Total California Aqueduct Deliveries include historical SWP deliveries, water transfers/exchanges, storage programs and
delta improvements
4 -- Total In -Basin Storage Deliveries include reservoir storage and groundwater conjunctive -use programs within
Metropolitan's service area.
5 -- Bascd on SCAG 98 RTP, SANDAG 1998 forecasts and member agency projections of local supplies
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City of Seal Beach -Water Supply Assessment
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Single Dry -year Supply Capability
& Projected Demands
(1977 Hydrology)
4.0 -
3.5 • Demands on MWD
, 3.0
"
m , 2.5 Supplies Under Development
Q ea 2.0 : :_ '. . . .
I n c 1
E. 1.0 -� <f Carrent Su ales
, „ - : 1 W
I
2005 2010 2015 2020
Supply Capability' & Potential Reserve or Replenishment
2005 2010 2015 2020
(acre - feetper year)
Current Supplies
Colorado River 1,250,000 1,181,800 870,000 870,000
California Aqueduct 625,300 625,300 650,300 650,300
In -Basin Storage 370,000 390,000 390,000 390,000
Supplies Under Development
Colorado River - 68,200 380,000 380,000
California Aqueduct 50,000 245,000 440,000 440,000
In -Basin Storage - 99,100 200,000 200,000
Maximum Supply 2,295,300 2,609,400 2,930,300 2,930,300
Capability
Total Demands on
Metropolitan 2,093,100 2,145,000 2,270,900 2,494,900
(Firm & Replenishment)
Potential Reserve &
System Replenishment 202,200 464,400 659,400 435,400
Supply
1 -- Represents expected supply capability for resource programs.
2 -- Total Colorado River Aqueduct Deliveries are limited to CRA capacity (1,250,000 acre -feet per year) and include
federal apportionments and guidelines, water conservation, water transfers and storage programs
3 -- Total California Aqueduct Deliveries include historical SWP deliveries, water transfers/exchanges, storage programs and
delta improvements
4 -- Total In -Basin Storage Deliveries include reservoir storage and groundwater conjunctive -use programs within
Metropolitan's service area.
5 -- Based on SCAG 98 RTP, SANDAG 1998 forecasts and member agency projections of local supplies).
Boeing WSA 23
City of Seal Beach -Water Supply Assessment
Boeing Headquarters Development
Average -year Supply Capability
& Projected Demands
4.0
3.5 -
Demands on MWD
K �
d 3.0 ,r 4.m ;'Sup plies Unde Development
CO 2.5 ' p, •
°` C urrent Suppla<e3
0.5 ,4 "' `
.. ,i,
. . •
2005 2010 2015 2020
Supply Capability' & Potential Reserve or Replenishment
2005 2010 2015 2020
(in acre -feet per year)
Current Supplies
Colorado River 1,089,300 850,900 819,500 673,000
California Aqueduct 1,780,800 1,783,200 1,723,900 1,714,900
In -Basin Storage - - - -
Supplies Under Development
Colorado River 160,700 368,700 388,700 388,700
California Aqueduct 20,000 65,000 220,000 220,000
In -Basin Storage - - -
Maximum Supply 3,050,800 3,067,800 3,152,100 2,996,600
Capability
Total Demands on
Metropolitan 1,901,400 1,953,800 2,076,500 2,390,000
(Firm & Replenishment)
Potential Reserve &
System Replenishment 1,149,400 1,114,000 1,075,600 606,600
Supply
1 -- Represents expected supply capability for resource programs.
2 -- Total Colorado River Aqueduct Deliveries are limited to CRA capacity (1,250,000 acre -feet per year) and include
federal apportionments and guidelines, water conservation, water transfers and storage programs
3 -- Total California Aqueduct Deliveries include historical SWP deliveries, water transfers /exchanges, storage programs and
delta improvements.
4 -- Total In -Basin Storage Deliveries include reservoir storage and groundwater conjunctive -use programs within
Metropolitan's service area (See Appendix D).
5 -- Based on SCAG 98 RTP, SANDAG 1998 forecasts and member agency projections of local supplies.
Boeing WSA 24
City of Seal Beach -Water Supply Assessment
Boeing Headquarters Development
Metropolitan has documented sufficient currently available supplies to meet 100
percent of its member agencies supplemental water demands for 20 years under
average —demand conditions, for 15 years under multiple dry-year conditions
(with 7 -12 percent reserve capacity), and for 10 years under single dry-year
conditions (with 7 -24 percent reserve capacity. With the addition of supplies
under development, Metropolitan will be able meet 100 percent of its agencies
water needs under all supply and demand conditions throughout 2020 with 15 to
20 percent reserve capacity. For further details please refer to the Metropolitan
Report.
Boeing WSA 25
•
APPENDIX A
CROSS REFERENCE — WATER CODE TO WSA
. I. CEQA GUIDELINES §15083.5
• The city or county must request that the system indicate whether the
projected water demand associated with the proposed project was included in
the last "urban water management plan" (UWMP) and assess whether its total
projected water supplies available during normal, single -dry, and multiple -dry
water years as included in the 20 year projection contained in the UWMP will
meet the projected water demand associated with the proposed project, in
addition to the system's existing and planned future uses.
• Please see Page 1 " Findings and Conclusions" : Although the projected
additional demand was not explicitly included in the City's latest Urban Water
Management Plan, the total projected water supplies available during normal,
single -dry, and multiple -dry water years as shown in this Water Supply
Assessment, will meet the projected water demand associated with the
proposed project, in addition to the system's existing and planned future uses
II. SB 610 WATER CODE § §10910 ET SEQ.
• Water Code §10910(c)(1): At the time a city or county determines that a
project is a "project" pursuant to CEQA, it must request each public water
system to determine whether the projected water demand associated with the
project was included as part of the most recently adopted UWMP.
• This WSA is prepared in response to the City's requirement because the
proposed project falls within the definition of a "Project" under the
Water Code section 10910(c)(1). An updated UWMP has been prepared
because the Project was not included in the UWMP -2000.
• Water Code §10910(c)(2): If the demand was accounted for in the UWMP,
the public water system may incorporate the requested information from the
UWMP in preparing the WSA.
• Since the Project was not included in the UWMP -2000, this section does
not apply. Instead the requested information was developed for the
WSA. See Page 1.
• Water Code §10910(c)(3): If the projected water demand for the project was
not accounted for in the UWMP, the WSA must include a discussion as to
whether the public water system's total projected water supplies available
during normal, single and multiple dry years during a 20 -year projection will
meet projected water demand associated with the proposed project, in
addition to the public water system's existing and planned future uses.
Boeing WSA- APPENDIX
• The City's total projected water supplies available during normal, single
and multiple dry years during a 20 -year projection will meet projected
water demand associated with the proposed Project, in addition to the
City water system's existing and planned future uses. See discussion
on Pages 5 through 10 and Figures 1 through 4 on Pages 6,7,8 and 9.
• Water Code §10910(c)(4): If the city is required to prepare the WSA, the
WSA shall include a discussion with regard to whether the total projected
water supplies, determined to be available by the city for the project during
normal, single dry, and multiple dry water years during a 20 -year projection,
will meet the projected water demand associated with the proposed project, in
addition to existing and planned future uses, including agricultural and
manufacturing uses.
• The City's total projected water supplies available during normal, single
and multiple dry years during a 20 -year projection will meet projected
water demand associated with the proposed Project, in addition to the
City water system's existing and planned future uses. See discussion
on Pages 5 through 10 and Figures 1 through 4 on Pages 6,7,8 and 9.
• Water Code §10910(d)(1): The WSA must include (1) identification of any
existing water supply entitlements, water rights or water service contracts
relevant to the identified water supply for a proposed project; and (2) a
description of the quantities of water received in prior years by the public
water system under the existing water supply entitlements, water rights or
water service contracts.
• Please see Pages 10 through 13 for groundwater supplies and pages 13
through 25 for imported water supplies available to the City. Please see
Page 5 for the water use from these two sources over the last five years.
• Water Code §10910(d)(2): Proof of the above contracts or entitlements is
required and can be demonstrated by (1) written contracts or other proof of
entitlement to an identified water supply; (2) copies of a capital outlay
program for financing the delivery of a water supply that has been adopted by
the public water system; (3) federal, state, and local permit for construction of
necessary infrastructure associated with delivering the water supply; (4) any
necessary regulatory approvals that are required in order to be able to convey
or deliver the water supply.
• Please see Pages 10 through 13 for groundwater supplies and pages 13
through 25 for imported water supplies available to the City.
• Water Code §10910(f): If groundwater is identified as a source of water
supply for a project, additional information must be included in the WSA. The
additional information includes: (1) review of any information contained in the
UWMP relevant to the identified water supply for the proposed project; (2)
2
'
Boeing WSA- APPENDIX
0
description of any groundwater basins from which the proposed project will be
supplied; (3) detailed description and analysis of the amount and location of
the groundwater pumped by the public water system or city or county for the
past five years from any groundwater basin from which the proposed project
will be supplied; (4) detailed description and analysis of the amount and
location of ground water that is projected to be pumped by the public water
system or city or county from any basin from which the project will be
supplied; (5) analysis of the sufficiency of the groundwater from the basin or
basins from which the project will be supplied to meet the projected water
demand associated with the project.
• 1- Please see Page 10 through 13 for groundwater supply discussion.
• 2- Please see Page 10 through 13 for groundwater basin description
• 3- Please see Page 5 for the amount of groundwater pumped by the City
for the last five years.
• 4- Please see Figures lthrough 4 for the amount of groundwater that is
projected to be pumped from the groundwater basin.
• 5- Please see Pages 10 through 13 for the discussion on the unique
character of the Orange County Groundwater Basin - a "managed"
basin.
• Water Code §10910(f)(2): Those basins for which a court or the board has
adjudicated the rights to pump groundwater must supply a copy of the order
or decree adopted by the court or board and provide a description of the
amount of groundwater the public water system has the legal right to pump
under the order or decree. For basins that have not been adjudicated,
information as to whether the basin has been identified as over drafted must
be discussed.
• Please see Pages 10 through 13 for the discussion on the unique
character of the Orange County Groundwater Basin - a "managed"
basin.
3
Boeing WSA- APPENDIX