11 & 12 - Attachment A - Exhibit C-J - Housing Element Update (2008-2014) - Addendums 1-8 — Newport Beach City Council, April 9, 2024 (part 6 of 33)

City of Newport Beach WATER SUPPLY ASSESSMENT
Water demand for the City of Newport Beach, including anticipated demand associated with buildout of the City's General Plan (inclusive of the NNCPC), is included in the water demand forecasts identified in the City's 2010 UWMP and within the planning documents of water districts, authorities, and agencies that directly or indirectly supply and/or manage the City's water supplies. These include the Metropolitan Water District of Southern California (hereafter, "Metropolitan"), the Municipal Water District of Orange County (MWDOC), and the Orange County Water District (OCWD). As such, water demand and supply evaluations conducted by Metropolitan, MWDOC, OCWD, as well as the City of Newport Beach itself are directly applicable to the proposed Project.

Given the characteristics of the Project (the proposed conversion and transfer of development intensity permitted by the City's General Plan from one location to another location (79 units) and the assignment of previously unassigned development intensity (15 units) to a specific property in Newport Center, the primary subject of this Water Supply Assessment is to determine if the City has adequate water supplies to serve 79 multi -family residential units instead of 79 hotel rooms, and to confirm that water supplies are available to serve 524 residential units in San Joaquin Plaza (94 additional residential units (79 +15) and the 430 units already permitted).

As set forth in this Water Supply Assessment, the City's water supply comes from three sources:
1) imported water from Metropolitan as wholesaled to the City by the MWDOC, 2) local groundwater pumped from the Lower Santa Ana Groundwater Basin by wells owned and operated by the City and managed by the OCWD, and 3) recycled water wholesaled by OCWD through its Green Acres Project (GAP). As such, the analysis and conclusions reached herein rely exclusively on the water supply projections and reliability information contained in the following documents:
a) Newport Beach, 2011. City of Newport Beach 2010 Urban Water Management Plan. May 2011.
b) Metropolitan Water District of Southern California, 2010. Regional Urban Water Management Plan. November 2010.
c) Municipal Water District of Orange County, 2011. 2010 Regional Urban Water Management Plan. June 2011.
d) Orange County Water District, 2009. Groundwater Management Plan 2009 Update. July 9, 2010.

In the four documents listed above, the City of Newport Beach, Metropolitan, MWDOC, and OCWD all conclude that there are sufficient water supply capacities to serve their respective service areas through year 2035, including projected water demand in the City of Newport Beach associated with buildout of the city's General Plan. As discussed in more detail in the "Analysis and Conclusions" section of this document, this Water Supply Assessment concludes NNCPC Development Plan Amendment and Related Actions June 13, 2012

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City of Newport Beach WATER SUPPLY ASSESSMENT
that adequate and reliable water supplies are and will be available to serve the proposed Project (the addition of 94 units of development intensity and a maximum overall development intensity of 524 units in San Joaquin Plaza) for the next 20 years.

Summary of Existina and Proiected Demand
The City of Newport Beach provides water service to a population of approximately 67,000 throughout its 35.77 square mile service area. Based on data available in the City of Newport Beach's 2010 UWMP, the total 2010 water demand for retail customers served by the City was approximately 16,645 acre-feet per year (AFY).2 Between 2005 and 2010, the City's water demand decreased by about 5 percent while population increased by 1.5 percent. This illustrates the City's proactive efforts in promoting water use efficiency. In addition to documenting existing demand, the UWMP also calculates the City's future water demand, using population and land use buildout assumptions from the City's General Plan.

Water demand projections for years 2005 to 2035 by land use type are given in the table below.

Table 1, City of Newport Beach Water Demand Projections Fiscal
Water Demand by Water Use Sectors (AFY)
Year
Ending
Single
Family
Multi-
Family
Commercial
/Industrial
Institutional
Landscape
Total
Demand
2005
7,482
2,597
3,300
734
3,719
17,831
2010
7,297
2,308
2,960
370
3,710
16,645
2015
7,258
2,300
2,947
378
4,140
17,023
2020
7,411
2,348
3,009
386
4,268
17,422
2025
7,565
2,397
3,072
394
4,346
17,774
2030
7,718
2,446
3,134
402
4,424
18,124
2035
7,872
2,494
3,196
410
4,502
18,474
Source: City of Newport Beach 2010 Urban Water Management Plan Table 2-4.

Water Supply Sources
The City of Newport Beach receives its water from three sources:
1) Imported water from Metropolitan as wholesaled to the City by the MWDOC, 2) Local groundwater stored in the Lower Santa Ana River Groundwater basin, which is managed by the OCWD and based on basin pumping percentages (BPP) drawn from four (4) active wells owned and operated by the City of Newport Beach, and 3) Recycled water from the OCWD's Green Acres Project (GAP).3 NNCPC Development Plan Amendment and Related Actions June 13, 2012

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The City's UWMP projects that water demand in the City of Newport Beach will increase by 11% over the 25 period of 2010 — 2035, to 18,474 acre-feet by 2035 as shown on the following table and listed by the source of supply.4
Table 2, City of Newport Beach Water Demand by Source
Water Supply Sources
Fiscal Year Ending
2010
2015
2020
2025
2030
2035-Opt
MWDOC (Imported
Treated Full Service
(non-int.))
6,161
6,298
6,430
6,564
6,697
r
BPP Groundwater
10,052
10,275
10,492
10,710
10,927
;1,1
Recycled Water
432
450
500
500
500
300
Total
16,645
17,023
17,422
17,774
18,124
18,474
Source: City of Newport Beach 2010 Urban Water Management Plan Table 2-9.

As shown in the graph below, in 2010 the City's total water demand of 16,645 acre-feet was supplied by approximately 37% imported water, 60% local groundwater, and 3% recycled water.' These percentages are expected to remain relatively the same though 2035.

Table 3, City of Newport Beach Water Demand Percentage by Source 300%
90%
90%
70%
Sax
4D%
30%
20%
1D%
0%
2010 2015 MO 2025 M0 MS
Aug Year Endit
■MWDOC ■BPPGroundwater <Reryded Water
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The City's three (3) main sources of water supply are described below.

1. Imported Water from Metropolitan via the MWDOC
Overview
The City of Newport Beach relies on imported water wholesaled by Metropolitan through the MWDOC. Metropolitan's principal sources of water originate from two sources - the Colorado River via the Colorado Aqueduct and the Lake Oroville watershed in Northern California through the State Water Project (SWP). This imported water is treated at the Robert B. Diemer Filtration Plant located north of Yorba Linda. Typically, the Diemer Filtration Plant receives a blend of Colorado River water from Lake Mathews through the Metropolitan Lower Feeder and SWP water through the Yorba Linda Feeder. The City of Newport Beach has six (6) connections to the imported water system along the Orange County Feeder and the East Orange County Feeder No. 2. The total available capacity is 104 cubic feet per second (cfs).

Supply Capacity and Reliability — Metropolitan Water District of Southern California Metropolitan's 2010 Regional Urban Water Management Plan (RUWMP) reports on water supply reliability and identifies projected supplies to meet the long-term demand within its service area.

It presents Metropolitan's demand and supply capacities from 2015 through 2035 under three hydrologic conditions: average year, single dry -year, and multiple dry -years. Additionally, Metropolitan completed an updated Integrated Water Resources Plan (IRP) in 2010 that reports on water use efficiency measures and local resource developments that are projected to meet future water needs. Metropolitan also publishes annual reports that provide information about water supplies, water initiatives, and resource management and operations in addition to other topics. The most recent annual report available is for 2011.

Metropolitan receives its water supplies from three (3) primary sources: the Colorado River Aqueduct, the State Water Project, and Storage.

Colorado River Supplies
A number of water agencies within California have rights to divert water from the Colorado River. Metropolitan is one of those agencies. The water is delivered to Metropolitan's service area by way of the Colorado River Aqueduct, which has a capacity of nearly 1.3 million AFY. The Aqueduct conveys water 242 miles from its Lake Havasu intake to its terminal reservoir, Lake Mathews, near the city of Riverside. Metropolitan is appropriated 550,000 AFY of Colorado River Water per an agreement with the federal Bureau of Reclamation. Up to an additional 842,000 AFY are available to Metropolitan when there is surplus water or when water remains unused by Arizona, Nevada, and higher priority users in California. Metropolitan is party to several agreements regarding the supply, delivery, transfer, and conservation of water from the Aqueduct.6 NNCPC Development Plan Amendment and Related Actions June 13, 2012

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Fiscal year 2010111 began with concerns of prolonged drought conditions in the Colorado Basin. However, the winter of 2010/11 saw record -breaking snowfall in much of the Colorado River Basin which substantially raised water levels in Lake Powell and Lake Mead. The increased storage has postponed the risk of shortage for several years and increased the chance that surplus water could be made available to Metropolitan in the near future.'
State Water Project
The State Water Project (SWP), which is owned by the California Department of Water Resources (DWR), is the second source of Metropolitan's imported water supplies. The SWP conveys water from Northern California to the north and south of the San Francisco Bay Area and areas south of the Bay Delta region. That water, along with all additional unused water from the watershed, flows into the Sacramento/San Joaquin Delta. Water from the Delta is then either pumped to water users in the San Francisco Bay area or transported through the California Aqueduct to water users in Central and Southern California. The amount of entitlement DWR approves for delivery varies annually with contractor demands and projected water supplies from tributary sources to the Delta, based on snowpack in the Sierra Nevada, reservoir storage, operational constraints, and demands of other water users.

Historically, the SWP has been able to meet all of its contractors' requests for entitlement water except in a few years when there was a shortage. The most recent shortage occurred in 2007-09, requiring Metropolitan to draft water from its storage supplies; but, a combination of improved SWP supplies and continued investments in water conservation and recycling have allowed Metropolitan to meet demands while also reducing its requirements for SWP water in recent years.

Going forward, a primary factor affecting the future reliability and supply of SWP water is the listing of several fish species in the Sacramento/San Joaquin Delta (Delta) under both state and federal Endangered Species Acts. Future SWP deliveries will continue to be impacted by restrictions placed on SWP and Central Valley Project (CVP) Delta pumping required by the biological opinions issued by the U.S. Fish and Wildlife Service (December 2008) and National Marine Fisheries Service (June 2009).8 SBx7-7 (Senate Bill 7 as part of the Seventh Extraordinary Session), "The Water Conservation Bill of 2009", was signed into law on February 3, 2010, as part of a comprehensive statewide water legislation package to reduce pumping out of the San Francisco Bay Delta. The bill sets a goal of achieving a 20% statewide reduction in urban per capita water use, which is being complied with in Newport Beach through local water conservation efforts discussed below under "Water Conservation Programs and Requirements." NNCPC Development Plan Amendment and Related Actions June 13, 2012

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Storage
A key component of Metropolitan's water supply capability is the amount of water in Metropolitan's storage facilities. Storage is a major component of Metropolitan's dry - year resource management strategy. Metropolitan is party to numerous voluntary Central Valley storage and transfer programs, aiming to develop additional dry -year water supplies. To date, Metropolitan's Central Valley/SWP storage programs consist of partnerships with Central Valley agricultural districts. These partnerships allow Metropolitan to store its SWP supplies during wetter years for return in future drier years. Metropolitan's Central Valley transfer programs include partnerships with Sacramento Valley Central Valley Project (CVP) and SWP settlement contractors. They allow Metropolitan to purchase water in drier years for delivery via the California Aqueduct to Metropolitan's service area.9
The end -of -year storage for calendar year 2011 was approximately 2.5 million AF, the highest level of dry -year storage reserves in Metropolitan's history. These increases improve Metropolitan's supply and demand outlook for future years."' Metropolitan's RUWMP concludes that Metropolitan has supply capabilities that are sufficient to meet expected water demands from 2015 through 2035 under the single dry -year and multiple dry -year conditions, as charted below in Table 4. As shown, imported water supplies from Metropolitan as wholesaled to the City of Newport Beach by the MWDOC, is a reliable source of water through at least 2035.

In the event of a water shortage, Metropolitan has comprehensive plans for stages of actions it would undertake to address up to a 50 percent reduction in its water supplies and a catastrophic interruption in water supplies through its Water Surplus and Drought Management and Water Supply Allocation Plans. Metropolitan also developed an Emergency Storage Requirement to mitigate against potential interruption in water supplies resulting from catastrophic occurrences within the Southern California region, including seismic events along the San Andreas fault. In addition, Metropolitan is working with the State of California to implement a comprehensive improvement plan to address catastrophic occurrences that could occur outside of the Southern California region, such as a maximum probable seismic event in the Delta that would cause levee failure and disruption of SWP deliveries."
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City of Newport Beach WATER SUPPLY ASSESSMENT
Table 4, Metropolitan Water District of Southern California's Projected Water Supply Capacity
A.5

4.0 3.5

3.0 Million

2.5 Acre -Feet
per Year 2.0

1.5 1.4
D_5

0.0 2015 2020 2025 2030 2035
mmim Supply Capability Single Dry -Year Supply Capability Multiple Dry -Years - 761ol Demands on Metropolitan Single Dry -Year Total Demands on Metropolitan Multiple Dry -Years Source: Metropolitan Water District of Southern California 2010 Regional Urban Water Management Plan, Figure ES-1 Supply Capacity and Reliability — Municipal Water District of Orange County MWDOC is a member agency of Metropolitan and a regional water wholesaler and resource planning agency. It receives imported water from Metropolitan and then wholesales that water to its member agencies, including the City of Newport Beach. MWDOC's 2010 Regional Urban Water Management Plan (RUWMP) addresses the water demand and supplies for all of Orange County, except for the cities of Anaheim, Fullerton, and Santa Ana, which are not MWDOC member agencies. The regional approach to urban water management planning via the RUWMP allows MWDOC to provide a comprehensive assessment of water resource needs in its service area, but also coordinate the implementation of water conservation programs and determine how to maximize the beneficial use of recycled water and local groundwater supplies, providing the region with new sources of local water to reduce the need for imported supplies from the Metropolitan. As a wholesaler, MWDOC develops and implements regional water use efficiency and water conservation programs on behalf of its retail water agencies and their customers, including the City of Newport Beach.

The RUWMP concludes that the MWDOC service area will have sufficient existing and planned supplies from Metropolitan, groundwater, surface water, and recycled water to meet full service demands under average year, dry year, and multi dry year scenarios from 2015 through 2035.12 During water shortages, MWDOC works with its member agencies to manage the water supply in the region to ensure it meets the demands of its member agencies. During a severe water NNCPC Development Plan Amendment and Related Actions June 13, 2012

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City of Newport Beach WATER SUPPLY ASSESSMENT
shortage (Stage 7 supply reduction as defined in Metropolitan's Water Surplus and Drought Management [WSDM] Plan), the MWDOC Board is responsible for allocating imported water from Metropolitan according to a specific formula."

2. Groundwater from the Lower Santa Ana River Groundwater Basin The City of Newport Beach uses approximately 10,000 acre-feet of groundwater annually, drawn from the Lower Santa Ana River Groundwater Basin (Orange County Basin). As of 2010, this local source of supply met approximately 60% of the City's total annual demand.

The Lower Santa Ana Groundwater Basin underlies the north half of Orange County, covering an area of approximately 350 square miles, and is managed by the Orange County Water District (OCWD). The OCWD manages the Basin's water supplies pursuant to a Groundwater Management Plan, the most recent update of which was published in 2009. The 2009 OCWD Groundwater Management Plan addresses several topics, including but not limited to: 1) Basin hydrogeology; 2) groundwater monitoring; 3) groundwater recharge; 4) groundwater quality management; and 5) efforts to protect water supplies and water quality.14 OCWD reports that although the amount of recharge and total pumping from the Basin may not be the same each year, over the long-term the amount of recharge needs to be similar to total pumping.15 The Basin is assured an adequate supply of water by a managed recharge system fed by natural recharge (rainfall and infiltration), water from the Santa Ana River and Santiago Creek, water released into the Santa Ana River at Prado Dam by the Western Municipal Water District, and imported and supplemental water released into recharge basins by Metropolitan, San Bernardino Valley Municipal Water District, and from the Arlington Desalter.16 The Santa Ana River is the largest coastal stream in southern California with a length of 80 miles and a drainage area of 2,470 square miles. OCWD has legal rights to and permits from the State Water Resources Control Board (SWRCB) to collect and store water from the Santa Ana River and Santiago Creek. OCWD operates 1,067 acres of recharge facilities located in and adjacent to the Santa Ana River and Santiago Creek.17
The City of Newport Beach obtains groundwater pumped from four (4) wells owned and operated by the City and managed by OCWD. Groundwater production from these wells from 2005 to 2009 is shown below. During certain seasons of 2005, 2006, and 2007, OCWD operated an In -lieu program with Metropolitan by purchasing water from Metropolitan to meet demands of member agencies rather than pumping water from the groundwater basin. In 2008 and 2009, OCWD did not utilize in -lieu water because such water was not available to purchase from Metropolitan.l$
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City of Newport Beach WATER SUPPLY ASSESSMENT
Table 5. Historic Groundwater Suaalies 2005-2009
Basin Name(s)
Fiscal Year Ending
2005
2006
2007
2008
2009
2010
2011
BPP GW
4,984
3,446
3,605
14,338
11,309
10,047
9,574
In -Lieu for OCWS
6,652
7,682
8,553
--
--
--
--
Subtotal OCWD Basin GW
11,636
11,228
12,158
14,338
11,309
10,047
9,574
Source: City of Newport Beach 2010 Urban Water Management Plan Table 3-6 for years 2005-2009; City of Newport Beach Water Production Division for years 2010-2011.

The City's wells are located in the City of Fountain Valley, approximately five (5) miles north of the City. The only constraints affecting groundwater supply to the City of Newport Beach are the pumping capacity of the wells and pumping limitations established by OCWD to maintain the groundwater basin.19
Each year the OCWD determines the optimum level of water storage for the following year.

The primary mechanism used by OCWD to manage pumping is the Basin Production Percentage (BPP), defined as "the ratio that all water to be produced from groundwater supplies with the district bears to all water to be produced by persons and operators within the District from supplemental sources as well as from groundwater within the District." In other words, the BPP is a percentage of each producer's water supply that comes from groundwater pumped from the basin. The BPP is set uniformly for all producers.20 OCWD uses a pricing approach that serves to discourage, but not eliminate, production above the BPP. Raising or lowering the BPP allows the District to manage the amount of pumping from the basin. The BPP is lowered when basin conditions necessitate a decrease in pumping. A lower BPP results in the need for Producers to purchase additional, more expensive imported water from Metropolitan.21 In summary, Lower Santa Ana Groundwater Basin serves as a safe, reliable buffer, sufficient source of groundwater for the City of Newport Beach. OCWD manages recharge of the Basin and implements measures that encourage withdraw amounts that secure the Basin's water supply.22 Additionally, the Groundwater Replenishment System jointly implemented by the OCWD and the Orange County Sanitation District secures stability of the groundwater basin by taking highly treated wastewater otherwise released into the ocean and purifies it to augment groundwater supplies.

3. Recycled Water
The City of Newport Beach participates in a reclaimed/recycled water program and uses recycled water supplies available to irrigate greenbelts, parkways, golf courses, and other landscape areas that may otherwise use potable water. This reclaimed/recycled water is wholesaled by OCWD through its Green Acres Project (GAP). In 2009/10, usage of recycled water within the City's Water Utility service area was about 400 acre feet. Recycled water usage meets approximately 3% of the City's water demand.

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As reported by the OCWD, the region collects nearly 313,000 AF of wastewater per year and 35% of that wastewater is used for recycled water supply. That the amount of recycled water supply will increase in the future. The amount of wastewater is expected to grow to approximately 440,000 AFY in 2035, with 37% expected to be treated for recycled use. As stated by the MWDOC, recycled water is a significant, reliable source of supply.23 Reliability of Supply in Normal Year, Single Dry Year and Multiple Dry Year Conditions
Every urban water supplier is required to assess the reliability to provide water service to its customers under normal, dry, and multiple dry years. As stated above, the City is assured a reliability of supply from Metropolitan as wholesaled to the City by the MWDOC (Imported), local groundwater pumped from the Lower Santa Ana Groundwater Basin managed by the OCWD (BPP Groundwater), and recycled water wholesaled by OCWD through its GAP (Recycled Water). The RUWMPs of Metropolitan and MWDOC document a reliable supply through year 2035. Additionally OCWD's Groundwater Management Plan documents a reliable supply of groundwater through 2035.

The tables below show supply and demand for the City of Newport Beach under normal year, dry year, and multiple dry year conditions. Because water supplies are projected to be available from all sources (Metropolitan, MWDOC and OCWD), supply and demand numbers are identica1.24
Table 6, City of Newport Beach Projected Normal Water Supply and Demand (AFY) Fiscal Year Ending
2015
2020
2025
2030
2035
Total Demand
17,023
17,422
17,774
18,124
18,474
BPP GW
10,275
10,492
10,710
10,927
11,144
Recycled Water
450
500
500
500
500
Imported
6,298
6,430
6,564 1
6,697
1 6,830
Total Supply
17,023
17,422
1 17,774
18,124
1 18,474
Source: City of Newport Beach 2010 Urban Water Management Plan Table 3-16.

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Table 7, City of Newport Beach Projected Single Dry Year Water Supply and Demand (AFY)
Fiscal Year Ending
2015
2020
2025
2030
2035
Total Demand
17,806
18,223
18,592
18,958
19,324
BPP GW
10,275
10,492
10,710
10,927
11,144
Recycled Water
450
500
500
500
500
Imported
7,081
7,232
7,382
7,531
7,680
Total Supply
17,806
18,223
18,592
18,958
19,324
Source: City of Newport Beach 2010 Urban Water Management Plan Table 3-17.

Table 8, City of Newport Beach Projected Multiple Dry Year Period Supply and Demand (AFY)
Fiscal Year Ending
201S
2020
2025
2030
2035
First Year
Supply
Total Demand
17,806
18,223
18,592
18,958
19,324
BPP GW
10,275
10,492
10,710
10,927
11,144
Recycled Water
450
500
500
500
500
Imported
7,081
7,232
7,382
7,531
7,680
Total Supply
17,806
18,223
18,592
18,958
19,324
Total Demand
17,806
18,223
18,592
18,958
19,324
BPP GW
10,275
10,492
10,710
10,927
11,144
Second Year
Supply
Recycled Water
450
500
500
500
500
Imported
7,081
7,232
7,382
7,531
7,680
Total Supply
17,805
18,223
18,592
18,958
19,324
Total Demand
17,806
18,223
18,592
18,958
19,324
Third Year
Supply
BPP GW
10,275
10,492
10,710
10,927
11,144
Recycled Water
450
500
500
500
500
Imported
7,081
7,232
7,382
7,531
7,690
Total Supply
17,806
18,223
18,592
18,958
19,324
Source: City of Newport Beach 2010 Urban Water Management Plan Table 3-18.

Water Conservation Programs and Requirements
MWDOC Water Conservation Programs
MWDOC works with its member agencies, including the City of Newport Beach, on water use efficiency programs. In terms of water management, MWDOC became a signatory to a Memorandum of Understanding (MOU) in 1991, monitored by the California Urban Water Conservation Council (CUWCC), which outlines 14 Best Management Practices (BMP) for urban NNCPC Development Plan Amendment and Related Actions June 13, 2012

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City of Newport Beach WATER SUPPLY ASSESSMENT
water use efficiency. The urban water use efficiency practices are intended to reduce long-term urban demands from what they would have been without implementation of these practices, and are in addition to programs that may be instituted during occasional water supply shortages.zs
City of Newport Beach Water Conservation Ordinance
A Water Conservation Ordinance was adopted by the Newport Beach City Council in 2009 and is included in the City's municipal code as Chapter 14.16, "Water Conservation and Supply Level Regulations." The Ordinance creates a Water Conservation and Supply Shortage Program that established four levels of water supply shortage response actions to be implemented during times of declared water shortage.

Additionally, the City of Newport Beach has been a signatory to the California Urban Water Conservation Council's (CUWCC) Best Management Practices (BMPs) Memorandum of Understanding (MOU) since August 2005 and implements Demand Management Measures (DMMs) to satisfy the requirements of MOU Section 10631 (f) & 0). Many DMMs also are administered by the MWDOC on behalf of its member agencies, including the City of Newport Beach.

SBx7-7 (Senate Bill 7 as part of the Seventh Extraordinary Session), "The Water Conservation Bill of 2009", was signed into law on February 3, 2010, as part of a comprehensive statewide water legislation package in response to legal action brought by the National Resources Defense Council to reduce pumping out of the San Francisco Bay Delta. The bill sets a goal of achieving a 20% statewide reduction in urban per capita water use, and directs urban retail water suppliers to develop targets to meet a 20% reduction in per capita water use by 2020, and an interim 10% reduction by 2015. As the wholesale water supplier to the City of Newport Beach and other member agencies, MWDOC is not required to establish and meet these reduction targets.

MWDOC's role in implementing the legislation is to assist each retail water supplier in analyzing the requirements and establishing their baseline and target water use, as guided by the California Department of Water Resources.26 The retail agency may choose to comply with SBx7-7 as an individual or as a region in collaboration with other water suppliers. MWDOC and 26 of its member agencies, including the City of Newport Beach, as well as the cities of Anaheim, Fullerton, and Santa Ana have created the Orange County 20x2020 Regional Alliance in an effort to help these agencies meet the water use reduction targets required by SBx7-7. With MWDOC's assistance, the City of Newport Beach selected to comply with Option 1 of the SBx7-7 compliance options, which requires a 20% reduction from baseline water usage by 2020 and 10% by 2015. The City's baseline, calculated from the ten year period July 1, 1995 to June 30, 2005, is 253 gallons per capita per day (GPCD). Thus, the City's 2015 interim water use target is 228.1 GPCD and the 2020 final water use target is 202.8 GPCD.Z' NNCPC Development Plan Amendment and Related Actions June 13, 2012

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City of Newport Beach WATER SUPPLY ASSESSMENT
Analvsis and Conclusions
The proposed Project evaluated in this Water Supply Assessment is a request to convert permitted development intensity associated with 79 un-built hotel rooms in the City of Newport Beach's Statistical Area L1 from "hotel rooms" to "multi -family residential units" and transfer those units to the San Joaquin Plaza portion of the NNCPC. The proposed Project also involves assigning previously unassigned development intensity for 15 un-built multi -family residential units permitted by the General Plan in MU-H3 designated areas to the NNCPC in San Joaquin Plaza. If the requested development intensity conversion, transfer, and assignment is approved by the City of Newport Beach, a total of 524 units would be permitted in San Joaquin Plaza (94 additional residential units and 430 units already permitted by the General Plan and NNCPC Development Plan).

Buildout of the City of Newport Beach's General Plan was considered in the water demand projections calculated by Metropolitan, MWDOC and OCWD. Therefore, Metropolitan's Regional Urban Water Management Plan. (2010), MWDOC's Regional Urban Water Management Plan (2011), and OCWD's Groundwater Management Plan 2009 Update evaluate the supply that would be required to service the 430 residential units already permitted in San Joaquin Plaza and the 15 un-built units allowed by the General Plan that are proposed to be assigned to San Joaquin Plaza. Metropolitan, MWDOC and OCWD all conclude that there will be adequate supplies in the average year, dry year, and multiple dry year scenarios through 2035. Therefore, Metropolitan's Regional Urban Water Management Plan (2010), MWDOC's Regional Urban Water Management Plan (2011), and OCWD's Groundwater Management Plan 2009 Update evaluate the supply that would be required to service the 430 residential units already permitted in San Joaquin Plaza and the 15 un-built units allowed by the General Plan that are proposed to be assigned to San Joaquin Plaza. Thus, the focus of this Assessment primarily involves the proposed conversion of 79 hotel units to 79 multi -family residential units, and whether supplies are sufficient to service 524 units of multi -family residential development that would be vested to the location of San Joaquin Plaza.

The water demand for this Project is calculated below for planning purposes only. This estimate is for planning purposes and shall not be construed as guaranteed water rights for the project.

Actual water use would likely be reduced through water conservation programs being implemented in the City of Newport Beach and the continued use of recycled water where possible. The demand calculation is based on 228.1 GPCD, which is the City's target goal for year 2015. Because no specific development project is proposed as part of the Project, this Assessment assumes that the number of persons expected to reside in each multi -family residential is 2.19 persons per household, which is the average number of persons per household cited in the General Plan EIR.

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Table 9, Water Demand for 79 Multi -Family Residential Units (not considered by the General Plan)
Units/Population
Gallons/Day/Capita
Gallons/Day
Acre-Feet/Year
Multi -Family
79 units/173
Residential
228.1
39,463

44.20 Units
persons
Table 10, Water Demand for 15 Multi -Family Residential Units (considered by the General Plan)
Units/Population
Gallons/Day/Capita
Gallons/Day
Acre-Feet/Year
Multi -Family
15 units/33
Residential
228.1
7,527

8.43 Units
persons
Table 11, Water Demand for 430 Multi -Family Residential Units (considered by the General Plan)
Units/Population
Gallons/Day/Capita
Gallons/Day
Acre-Feet/Year
Multi -Family
430 units/942
Residential
228.1
214,870
240.58
Units
persons
Table 12, Total Residential Water Demand Proiected in San Joaquin Plaza Units
Gallons/Day/Capita
Gallons/Day
Acre-Feet/Year
Multi -Family
524/1,148
2281
261,858
293.2
Residential Units
persons
As mentioned above, the proposed Project involves a request to convert permitted development intensity associated with 79 un-built hotel rooms in Statistical Area L1 from "hotel rooms" to "multi -family residential units" and transfer those units to the San Joaquin Plaza portion of the NNCPC. Therefore, this analysis also calculates the projected demand reduction associated with the elimination of 79 hotel rooms. Water use in hotels is highly dependent on occupancy rate, the number of persons occupying each room, the water conservation features incorporated into the hotel building, the water conservation operational practices of the hotel's management and the amount of water conservation practiced by hotel guests. In the City of Newport Beach, the MWDOC encourages water use reduction conservation programs for hotels in its service area, which has some effect on water use reduction. For purposes of this analysis, it is assumed that the water demand of a hotel room equates to the same demand as a residential unit housing one (1) person.

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City of Newport Beach WATER SUPPLY ASSESSMENT
Table 13, Anticipated Water Demand Eliminated from Hotel Rooms (considered by the General Plan)
Rooms
Gallons/Day/Unit
Gallons/Day
Acre-Feet/Year
Hotel Rooms
-79/-79 persons
228.1
-18,019
-20.18
Comparing Table 9 and Table 13, the proposed Project would result in an increased water demand of 24.02 acre-feet per year (AFY), which is less than one -tenth of one percent of the City's projected year 2035 total demand of 17,474 AFY. Based on the information contained in this Water Supply Assessment regarding the existing and future availability and reliability of imported water supplies as surmised from the Urban Water Management Plans of Metropolitan (2010), MWDOC (2011) and the City of Newport Beach (2010), and the OCWD Groundwater Management Plan (2009), there is an availability of sufficient supplies from imported water, local groundwater, and recycled water to service the proposed Project and other existing and projected development in the City of Newport Beach in normal year, single dry year and multiple dry year conditions. Additionally, there has been a trend of per capita water use reduction since 2005 and that trend is expected to continue to reach the City's water usage reduction goal of 202.8 GPCD by year 2020. These further reductions are not reflected in the calculated water demands above.

NNCPC Development Plan Amendment and Related Actions June 13, 2012

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City of Newport Beach WATER SUPPLY ASSESSMENT

PREPARED BY
Consultant
Tracy Zinn, AICP, Principal
T&B Planning, Inc.
17542 East 17t" Street, Suite 100
Tustin, CA 92780
City of Newport Beach
George Murdoch; General Manager, Municipal Operations Department Kathryne Cho; Junior Engineer, Public Works Department

ENDNOTES
1 California Department of Water Resources, 2003. Guidebook for Implementation of Senate Bill 610 and Senate Bill221 of 200. Page iii. October 8, 2003.
2 Ibid.
3 Newport Beach, 2011. City of Newport Beach 2010 Urban Water Management Plan. Available online at http://www.newportbeachca.gov/Modules/ShowDocument.aspx?documentid=l0182 . Page 1. May 2011. 4 Ibid. Page 2-10 and Table 2-9.
5 Ibid. Page 2-10.
6 Metropolitan Water District of Southern California, 2010. Regional Urban Water Management Plan.

Available online at http:H www.mwdh2o.com/mwdh2o/pages/yourwater/RUWMP/RUWMP 201O.pdf.

Pages A.2-12 to 13. November 2010.
7 Metropolitan Water District of Southern California, 2011. The Metropolitan Water District of Southern California Annual Report 2011. Available online at
http://www.mwdh2o.com/mwdh2o/pages/about/ar/arll.html . Pages 27-29. 8 Metropolitan Water District of Southern California, 2010. Page 2-15. 9 Ibid. Section 3.3
10 Metropolitan Water District of Southern California, 2011. Pages 7-10. 11 Ibid. Page ES-5.
12 Municipal Water District of Orange County, 2011. 2010 Final Regional Urban Water Management Plan.

Available online at http://www.mwdoc.com/filesgallery/MWDOC llery/MWDOC Final 2010 RUWMP.pdf. Page 2. April 2011.
13 Ibid. Page 6.

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City of Newport Beach WATER SUPPLY ASSESSMENT
14 Orange County Water District, 2009. Groundwater Management Plan 2009 Update. Available online at http://www.ocwd.com/Publications---Reports/ca-43.aspx . Pgs. ES-1 to ES-17. July 9, 2010. 15 Ibid. Page 4-1.
16 Ibid. Page 4-11. Table 4-2.
17 Ibid. Page 4-1.
18 Ibid.
19 Newport Beach, 2011. Page 3-13.
20 Orange County Water District, 2009. Section 6.7
21 Ibid.
22 Ibid. Section 6.
23 Municipal Water District of Orange County, 2011. Page ES-5. 24 Newport Beach, 2011. Pages 3-18 to 3-19.
25 Municipal Water District of Orange County, 2011. Page 1-6. 26 Ibid. Pages 3 to 4.
27 Newport Beach, 2011. Pages 2-6 to 2-8.

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APPENDIX A —
City of Newport Beach Water Conservation Ordinance

NEWPORT BEACH MUNICIPAL CODE Chapter 14.16
WATER CONSERVATION AND SUPPLY LEVEL REGULATIONS*
Sections:

14.16.010 Findings and Purpose.

14.16.020 Definitions.

14.16.030 Applicability.

14.16.040 Permanent Mandatory Water Conservation Requirements.

14.16.050 Procedure for Declaration of Water Supply Shortage —Continued Monitoring of Conditions.

14.16.060 Level One Mandatory Water Conservation Requirements.

14.16.070 Level Two Mandatory Water Conservation Requirements.

14.16.080 Level Three Mandatory Water Conservation Requirements.

14.16.090 Level Four Mandatory Water Conservation Requirements.

14.16.100 Exemptions.

14.16.110 Relief from Compliance.

14.16.120 Enforcement.
* Prior ordinance history Ords. 794, 1755, 91-17, 92-31 and 96-22.

14.16.010 Findings and Purpose.

A. The purpose of this chapter is to establish a water conservation and supply shortage program that, to the greatest extent possible, will reduce water consumption within the City of Newport Beach, enable effective water supply planning, assure reasonable and beneficial use of water, prevent waste of water, maximize the efficient use of water and minimize the effect and hardship of water shortage.

B. The water conservation and supply shortage program created by this chapter establishes permanent water conservation requirements intended to alter behavior related to water use efficiency for non - shortage conditions and further establishes four levels of water supply shortage response actions to be implemented during times of declared water shortage.

C. The City Council finds as follows:

1. A reliable minimum supply of water is essential to the public health, safety and welfare of the people and economy of the Southern California region.

2. Southern California is a semi -arid region and is largely dependent upon imported water supplies. A growing population, climate change, environmental concerns and other factors in other parts of the state and western United States make the region highly susceptible to water supply reliability issues.

3. Careful water management that includes active water conservation measures, not only in times of drought but at all times, is essential to ensure a reliable minimum supply of water to meet current and future supply needs.

4. Article X, Section 2, of the California Constitution declares that the general welfare requires that water resources be put to beneficial use, that waste or unreasonable use or unreasonable method of use of water is prevented and that conservation of water be fully exercised with a view to the reasonable and beneficial use thereof.

5. Article XI, Section 7 of the California Constitution declares that a city or county may make and enforce within its limits all local, police, sanitary and other ordinances and regulations not in conflict with general laws.

6. California Water Code Section 375 authorizes a water supplier to adopt and enforce a comprehensive water conservation program to reduce water consumption and conserve supplies.

7. The adoption and enforcement of the water conservation and supply shortage program is necessary to manage the City's water supply in the short and long term and to avoid or minimize the effects of a supply shortage within the City's service area. Such a program is essential to ensure a reliable and sustainable minimum supply of water for public health, safety and welfare.

8. Recycled water is supplied in various areas throughout the City to conserve potable water.

Recycled water, like potable water, must be used efficiently and is therefore included in this program. (Ord. 2009-24 § 1 (part), 2009)

14.16.020 Definitions.

In this chapter, the following words and phrases shall have the following meanings:
"Base amount" means a base amount of water usage per billing period to be determined for each customer. For any particular billing period, the base amount shall be as indicated on the customer's municipal services statement for the prior billing cycle. For customers occupying premises for which the City's water billing history is more than three years, the base amount shall be the three-year moving average, which is calculated by the City for each water customer. For customers occupying premises for which the City's water billing history is less than three years, the base amount shall be the estimate of the water usage per billing period of similar premises and users. Notwithstanding the foregoing, in calculating the base amount, the base amount shall exclude any billing periods during which water consumption restrictions were in effect.
"Billing period" means the period of time for which the City calculates monthly water service rates for a particular customer under Section 14.12.020.
"City" shall mean the City of Newport Beach.

"City Council" shall mean the City Council of the City of Newport Beach. "Commercial kitchen" means a facility containing a kitchen in which food is prepared for sale, such as a restaurant, cafe, hotel, catering establishment, or other food preparation establishment. "Customer" shall mean any person using or receiving water service from the City. The term "customer" shall not include a person receiving water service within the City from the Irvine Ranch Water District or from the Mesa Consolidated Water District.
"Department of Public Health" shall mean the Orange County Department of Health. "Excessive flow or runoff' shall mean frequent and/or large amounts of runoff from irrigation and/or other outdoor water use.
"Fire Marshall" shall mean the City of Newport Beach's Fire Marshall or his or her designee. "Fuel modification zone" shall mean combustible native or ornamental vegetation that has been modified and partially or totally replaced with drought -tolerant, fire -retardant plants and maintained per Fire Code guidelines.
"Implementation plan" shall mean the plan developed by the Utilities Director that provides the resources (staffing and equipment) required to ensure the fair and timely execution of these requirements, as well as a detailed execution strategy.
"Irrigate" means any exterior application of water, other than for firefighting purposes, including but not limited to the watering of any vegetation whether it be natural or planted. "Landscape irrigation system" means an irrigation system with pipes, hoses, spray heads, or sprinkling devices that are operated by and/or through an automated system. "MET" shall mean the Metropolitan Water District of Southern California. "Person" shall have the meaning ascribed to it by Section 1.08.120. "Potable water" means water that is suitable for drinking and excludes recycled water from any source. "Premises" means a parcel of land, or portion of a parcel, including any improvements located there, that are served by a City water meter.
"Recirculating" means the reuse of existing water, by means of capturing/containing water used, then circulating back to point of origin.
"Recycled water" means the reclamation and reuse of nonpotable water and/or wastewater for beneficial use, such as irrigation.

"Safety/sanitary hazards" means the condition that may cause or threaten to cause injury to any person or persons.
"Single -pass cooling system" means equipment where water is circulated only once to cool equipment before being disposed.
"Utilities Director" shall mean the Director of the City of Newport Beach's Utilities Department or his or her designee.
"Water" shall mean potable water and recycled water.
"Water -conserving kitchen spray valve" means a dishwashing spray valve that uses 1.6 gallons of water or less per minute of use.
"Water conservation plan" means a plan submitted by a customer for the approval of the Utilities Director, in conjunction with a request for an exemption or partial exemption, that proposes the maximum feasible reduction in consumption.
"Water consumption restrictions" shall mean those provisions in this chapter that require customers to reduce the amount of water consumed during a water supply shortage in relation to the base amount. "Water supply shortage" means the effective period of time during which the City Council, by resolution adopted under Section 14.16.050, has declared the existence of a water supply shortage or threatened shortage. The City Council, depending on the severity of conditions, may declare a Level One, Level Two, Level Three, or Level Four water supply shortage. (Ord. 2009-24 § 1 (part), 2009)

14.16.030 Applicability.

A. The provisions of this chapter shall apply to all persons using water in the City.

B. For the purposes of this chapter, the use of water by a tenant, employee, agent, contractor, representative or person acting on behalf of a customer, may, at the City's election, be imputed to the customer. (Ord. 2009-24 § 1 (part), 2009)

14.16.040 Permanent Mandatory Water Conservation Requirements.

The following prohibitions and mandatory water conservation requirements are effective at all times, including during a water supply shortage. Violations of this section will be considered waste and an unreasonable use of water.

A. No customer shall use potable water to irrigate any lawn and/or ornamental landscape area using a landscape irrigation system or a watering device that is not continuously attended unless such irrigation is limited to no more than fifteen (15) minutes' watering per day per station.

1. This restriction does not apply to the following unless the City has determined that recycled water is available and may be lawfully applied to the use.

a. Landscape irrigation systems that exclusively use very low flow drip type irrigation systems in which no emitter produces more than two gallons of water per hour or weather - based controllers or stream rotor sprinklers that meet a seventy (70) percent efficiency standard.

B. No person shall use water to irrigate any lawn and/or ornamental landscape area in a manner that causes or allows excessive flow or runoff onto an adjoining sidewalk, driveway, street, alley, gutter or ditch.

C. No person shall use water to wash down hard or paved surfaces, including, but not limited to, sidewalks, walkways, driveways, parking areas, tennis courts, patios or alleys, except when necessary to alleviate safety or sanitary hazards, and then only by use of a hand-held bucket or similar container, a hand-held hose equipped with a positive self -closing water shut-off device, or a low -volume, high- pressure cleaning machine (e.g., "water broom") equipped to recycle any water used.

D. No person shall permit excessive use, loss or escape of water through breaks, leaks or other malfunctions in the person's plumbing or distribution system for any period of time after such escape of water should have reasonably been discovered and corrected and in no event more than seven days after receiving notice of the condition from the City.

E. No customer shall use potable water to irrigate lawns, groundcover, shrubbery or other ornamental landscape material during a rainfall event.

F. By July 1, 2012, all landscape irrigation systems connected to dedicated landscape meters shall include rain sensors that automatically shut off such systems during periods of rain or include evapotranspiration systems that schedule irrigation based on climatic conditions.

G. No customer shall operate a water fountain or other decorative water feature that does not use a recirculating water system.

H. No customer shall use water to clean a vehicle, including but not limited to any automobile, truck, van, bus, motorcycle, boat or trailer, whether motorized or not, except by use of a hand-held bucket or similar container or a hand-held hose equipped with a positive self -closing water shut-off nozzle or device.

1. This subsection does not apply to any commercial car washing facility.

I. Effective January 1, 2010, all new commercial conveyor car wash systems in commercial car washing facilities shall be operational recirculating water systems.

J. By January 1, 2013, all commercial conveyor car wash systems in commercial car washing facilities shall be operational recirculating water systems, or the customer must have secured an exemption from this requirement pursuant to Section 14.16.100.

K. Customers operating eating or drinking establishments, including but not limited to restaurants, hotels, cafes, cafeterias, bars, or other public places where food or drinks are sold, served, or offered for sale, shall not provide drinking water to any person unless expressly requested by the person.

L. Customers operating hotel, motel, and other commercial lodging establishments shall provide persons the option of not having towels and linen laundered daily. Commercial lodging establishments must prominently display notice of this option.

M. No customer shall install a new single pass cooling system in a building or premises requesting new water service. This provision shall not prevent the replacement or repair of single pass cooling systems that were installed prior to December 31, 2009.

N. Effective January 1, 2010, all new washing machines installed in commercial and/or coin -operated laundries shall be ENERGY STAR® and CEE Tier III qualified. By January 1, 2014, all washing machines installed in commercial and/or coin -operated laundries shall be ENERGY STAR® and CEE Tier III qualified.

O. No customer shall use water from any fire hydrant for any purpose other than fire suppression or emergency aid without first: (1) requesting and posting the appropriate fees at the City, and (2) obtaining a hydrant meter to record all water consumption for a specified project. Absent a meter, water theft and meter tampering fees will be applied as appropriate.

P. Construction Site Requirements. The requirements of this subsection apply to persons engaged in construction activities. A permittee's refusal or failure to comply with these requirements shall constitute grounds for revocation of a construction or grading permit. In addition, the City may withhold occupancy and inspections until such time as the permit holder has complied.

1. No person shall use potable water for soil compaction or dust control in a construction site where there is an available and feasible source of recycled water or nonpotable water approved by the Department of Public Health and appropriate for such use.

2. No person shall operate a hose within a construction site that is not equipped with an automatic shut-off nozzle; provided, that such devices are available for the size and type of hose in use.

Q. Commercial Kitchen Requirements. No customer may operate a commercial kitchen that does not comply with the following requirements.

1. Water -Conserving Pre -Rinse Kitchen Spray Valves. New or remodeled commercial kitchens shall be equipped with water -conserving kitchen spray valves. By January 1, 2010, all commercial kitchens shall either remove all existing kitchen spray valves or retrofit kitchen spray valves with water -conserving kitchen spray valves.

2. Best -Available Water -Conserving Technology. New or remodeled commercial kitchens shall ensure that all water -using equipment in new or remodeled commercial kitchens uses the best - available, water -conserving technology.

3. No customer operating a commercial kitchen shall defrost food or allow food to be defrosted with running water.

4. Scoop sinks shall be set at minimum water flow at all times of use and shut off during non- working hours.

5. When hosing or washing kitchen or garbage areas or other areas for sanitary reasons as required by the Department of Health, hoses shall be equipped with positive self -closing nozzles. (Ord. 2009-24 § 1 (part), 2009)

14.16.050 Procedure for Declaration of Water Supply Shortage —Continued Monitoring of Conditions.

A. From time to time, the City Council may declare by resolution the existence of a Level One, a Level Two, a Level Three, or a Level Four water supply shortage. In so doing, the Council shall determine that a water supply shortage or threatened shortage exists, due to drought or other water supply conditions, and that it is necessary to impose the mandatory conservation requirements applicable to the particular level of water supply shortage. It will be necessary to make more efficient use of water and appropriately respond to conditions created by the water supply shortage. Prior to adopting a resolution declaring the existence of a water supply shortage, the City Council shall enact a resolution indicating its intention to do so, the conditions necessitating the declaration, the nature of the mandatory conservation restrictions proposed to be imposed, including the specifics of any proposed water consumption restrictions, and the day, hour and place when and where persons may appear before the City Council and be heard on whether a resolution declaring the water supply shortage should be enacted. The resolution of intention shall direct the City Clerk to publish said resolution at least once, within fifteen (15) days of the passage thereof, in a newspaper of general circulation in the City. Said notice shall be published at least ten days prior to the date of hearing. Within ten (10) days of the adoption of a resolution declaring a water supply shortage, the City Clerk shall cause the resolution to be published or posted in the manner required by California Water Code Section 376.

B. The mandatory conservation requirements that become effective following the adoption of a resolution declaring the existence of a particular level of water supply shortage shall remain in full force and effect until the resolution is repealed or until new mandatory conservation requirements become effective following the adoption of a subsequent resolution declaring the existence of a water supply shortage.

C. During the existence of a water supply shortage, the Utilities Director shall provide periodic reports to the City Council regarding compliance with the mandatory conservation requirements of the level of water supply shortage, current and anticipated allocations of water from MET, and any change in circumstances

that could warrant a position of more stringent measures or relaxation of measures then in effect. (Ord. 2009-24 § 1 (part), 2009)

14.16.060 Level One Mandatory Water Conservation Requirements.

On the tenth day after a resolution declaring the existence of a Level One water supply shortage becomes effective, the following mandatory water conservation requirements shall take effect.

A. No customer shall use potable water to irrigate any lawn, landscape or other vegetated area except on the scheduled irrigation days established for each customer by the Utilities Director. During a Level One water supply shortage, the schedule established by the Utilities Director shall specify for each customer (a) four irrigation days per week during the months of April, May, June, July, August, September, and October, and (b) two irrigation days per week during the months of November, December, January, February, and March. Prior to the foregoing restriction becoming effective, the Utilities Director shall have notified the customer of the scheduled irrigation days by mail, which may be done by an indication on the customer's municipal services statement. This restriction does not apply to the following unless the City has determined that recycled water is available and may be lawfully applied to the use:

1. Maintenance of vegetation, including trees and shrubs, that is watered using a hand-held bucket or similar container, a hand-held hose equipped with a positive self -closing water shut-off nozzle or device, or a very low flow drip type irrigation system when no emitter produces more than two gallons of water per hour.

2. Irrigation of food crops (including fruit trees and vegetable gardens).

3. Short periods of irrigation for the exclusive purpose of adjusting or repairing an irrigation system.

B. No customer shall use more water during any billing period than the percentage of the base amount established in the resolution declaring the Level One water supply shortage, which percentage shall be in the range from one hundred (100) percent and ninety (90) percent of the base amount.

C. No person shall permit excessive use, loss or escape of water through breaks, leaks or other malfunctions in the user's plumbing or distribution system for more than seventy-two (72) hours after receiving notice of the condition from the City.

D. No customer may use potable water to fill or refill an ornamental lake, pond, or fountain more than once per week, except to the extent needed to sustain aquatic life; provided, that such animals were being actively managed within the water feature at the time of the City's initial declaration of a then - continuing water supply shortage.

E. No customer may use potable water to fill or refill by more than one foot a residential swimming pool or outdoor spa more than once a week. (Ord. 2009-24 § 1 (part), 2009)

14.16.070 Level Two Mandatory Water Conservation Requirements.

On the tenth day after a resolution declaring the existence of a Level Two water supply shortage becomes effective, the following mandatory water conservation requirements shall take effect.

A. No customer shall use potable water to irrigate any lawn, landscape or other vegetated area between the hours of 9:00 a.m. and 5:00 p.m. Pacific Standard Time on any day, except by use of a hand-held bucket or similar container, a hand-held hose equipped with a positive self -closing water shut-off nozzle or device, or for short periods of irrigation for the exclusive purpose of adjusting or repairing an irrigation system.

B. No customer shall use potable water to irrigate any lawn, landscape or other vegetated area except on the scheduled irrigation days established by City Council resolution. During a Level Two water supply shortage, the schedule established by City Council resolution shall specify for each customer (a) three irrigation days per week during the months of April, May, June, July, August, September, and October, and (b) one irrigation day per week during the months of November, December, January, February, and March. Prior to the foregoing restriction becoming effective, the City shall notify the customer of the scheduled irrigation days by mail, which may be done by an indication on the customer's municipal services statement. This restriction does not apply to the following unless the City has determined that recycled water is available and may be lawfully applied to the use:

2. Irrigation of food crops (including fruit trees and vegetable gardens); provided, that such irrigation does not exceed five times per week on a schedule established and posted by the City's Utilities Department.

3. Short periods of irrigation for the exclusive purpose of adjusting or repairing an irrigation system.

C. No customer shall use more water during any billing period than the percentage of the base amount established in the resolution declaring the Level Two water supply shortage, which percentage shall be in the range from ninety (90) percent to seventy-five (75) percent of the base amount.

D. No person shall permit excessive use, loss or escape of water through breaks, leaks or other malfunctions in the user's plumbing or distribution system for more than forty-eight (48) hours after receiving notice of the condition from the City.

E. No customer may use potable water to fill or refill an ornamental lake, pond, or fountain more than once every other week, except to the extent needed to sustain aquatic life; provided, that such animals

were being actively managed within the water feature at the time of the City's declaration of the water supply shortage under this chapter.

F. No customer may use potable water to fill or refill by more than one foot a residential swimming pool or outdoor spa more than once every other week. (Ord. 2009-24 § 1 (part), 2009)

14.16.080 Level Three Mandatory Water Conservation Requirements.

On the tenth day after a resolution declaring the existence of a Level Three water supply shortage becomes effective, the following mandatory water conservation requirements shall take effect.

B. No customer shall use potable water to irrigate any lawn, landscape or other vegetated area except on the scheduled irrigation days established by City Council resolution. During a Level Three water supply shortage, the schedule established by City Council resolution shall specify for each customer (a) two irrigation days per week during the months of April, May, June, July, August, September, and October, and (b) one irrigation day per week during the months of November, December, January, February, and March. Prior to the foregoing restriction becoming effective, the City shall notify the customer of the scheduled irrigation days by mail, which may be done by an indication on the customer's municipal services statement. This restriction does not apply to the following unless the City has determined that recycled water is available and may be lawfully applied to the use:

2. Irrigation of food crops (including fruit trees and vegetable gardens); provided, that such irrigation does not exceed three days per week on a schedule established and posted by the City's Utilities Department.

3. Short periods of irrigation for the exclusive purpose of adjusting or repairing an irrigation system.

C. No customer shall use more water during any billing period than the percentage of the base amount established in the resolution declaring the Level Three water shortage, which percentage shall be in the range from seventy-five (75) percent and sixty (60) percent of the base amount.

D. No person shall permit excessive use, loss or escape of water through breaks, leaks or other malfunctions in the user's plumbing or distribution system for more than twenty-four (24) hours after receiving notice from the City.

E. No customer may use potable water to fill or refill an ornamental lake, pond, or fountain, except to the extent needed to sustain aquatic life; provided, that such animals were being actively managed within the water feature at the time of the City's declaration of the water supply shortage under this chapter.

F. No customer may use potable water to fill or refill a residential swimming pool or outdoor spa. (Ord. 2009-24 § 1 (part), 2009)

14.16.090 Level Four Mandatory Water Conservation Requirements.

On the tenth day after a resolution declaring the existence of a Level Four water supply shortage becomes effective, the following mandatory water conservation requirements shall take effect.

A. No customer shall use potable water to irrigate any lawn, landscape or other vegetated area. This restriction does not apply to the following categories of use unless the City has determined that recycled water is available and may be lawfully applied to the use:

1. Maintenance of vegetation, including trees and shrubs, that are watered using a hand-held bucket or similar container or a hand-held hose equipped with a positive self -closing water shut- off nozzle or device;

2. Maintenance of existing landscape to the extent necessary for fire protection;

3. Maintenance of existing landscape to the extent necessary for soil erosion control;

4. Maintenance of plant materials identified to be rare or essential to the well-being of rare animals;

5. Maintenance of landscape within active public parks and playing fields, day care centers, school grounds, cemeteries, and golf course greens; provided, that such irrigation does not exceed two times per week on a schedule established by resolution of the City Council and posted by the Utilities Director;

6. Public works projects and actively irrigated environmental mitigation projects;

7. Food crops (including fruit trees and vegetable gardens); provided, that such irrigation does not exceed two times per week on a schedule established and posted by the City's Utilities Department.

B. The City will not (a) provide new potable water service, new temporary meters, or new permanent meters, or (b) issue statements of immediate ability to serve or to provide potable water service, except under the following circumstances:

1. A valid, unexpired building permit has been issued for the project; or

2. The project is necessary to protect public health, safety, and welfare; or

3. The applicant provides substantial evidence of an enforceable commitment that, ensures, to the satisfaction of the Utilities Director, the water demands for the project will be offset prior to the provision of a new water meter(s).

This restriction does not preclude the resetting or turn -on of meters to provide continuation of water service or the restoration of service that has been interrupted for a period of one year or less.

C. No customer shall use more water during any billing period than the percentage of the base amount established in the resolution declaring the Level Four water shortage, which percentage shall be less than sixty (60) percent of the base amount.

F. No customer may use potable water to fill or refill a residential swimming pool or outdoor spa. (Ord. 2009-24 § 1 (part), 2009)

14.16.100 Exemptions.

A. The provisions of this chapter do not apply to any of the following.

1. Uses of water necessary to protect public health and safety or for essential government services, such as police, fire and other similar emergency services.

2. The filling, operation, and maintenance of a swimming pool that is open to the public at rates of charge deemed reasonable by the City Council.

3. The washing of refuse, sanitation and service vehicles owned and operated by a public entity to the extent necessary to ensure public health, safety and welfare; provided, that recycled water or a recirculating water system will be used where feasible.

B. Any restrictions imposed by this chapter that require the reduction of consumption shall not be applicable to any of the following.

1. Customers who have participated in a fuel load modification program and have received an exemption from the Utilities Director and Fire Marshall. The Utilities Director and Fire Marshall

shall only grant exemptions necessary to mitigate the impacts of participation in the fuel modification zone program, such as the need to irrigate replacement vegetation.

2. Customers that operate hospitals, medical care facilities, nurseries or other businesses whose main stock and trade consists of the sale or cultivation of plants and vegetation, and businesses in which water consumption is an integral part of production or manufacturing; provided, that such customers shall first submit a water conservation plan to, and obtain the approval of, the Utilities Director. This exemption does not extend to the use of potable water for the irrigation of landscape areas.

C. The Utilities Director shall approve a water conservation plan only if the plan proposes the maximum feasible reduction in consumption. As a condition of approving the water conservation plan, the Utilities Director may require the use of water conservation devices or practices as he or she deems appropriate to result in the maximum feasible reduction in consumption. (Ord. 2009-24 § 1 (part), 2009)

14.16.110 Relief from Compliance.

A. Intent and Purpose. The City Council recognizes that water consumption can increase or decrease because of factors unrelated to wasteful water use practices. Many customers have installed water - saving devices and adopted water conservation practices that make it difficult to satisfy the water consumption restrictions required by this chapter. This section recognizes that adjustments to the base amount may be necessary to ensure that application of this chapter to any particular customer does not produce unjust or inequitable results. In addition, the section recognizes unique circumstances may result in undue or disproportionate hardship as to a person using water which is different from the impacts to water users generally. As a general rule, the Utilities Director should not grant relief to any person or customer for any reason in the absence of showing that the person or customer has achieved the maximum feasible reduction in water consumption other than in the specific area or areas for which relief is requested.

B. Procedures. A person or customer may file an application for relief from the provisions of this chapter with the Utilities Director. The application shall be submitted in writing to the Utilities Department. The application must be filed within ninety (90) days after the effective date of this chapter or ninety (90) days after implementation of the then -current water supply shortage level, whichever shall occur last. The Utilities Director may require the submission of additional supporting documentation that he or she deems necessary to grant the application for relief. The Utilities Director shall approve or disapprove the application for relief within thirty (30) days after it is filed and deemed complete.

C. Factors to Be Considered.

1. Relief from Water Consumption Restrictions. In determining whether relief should be granted from water consumption restrictions, the Utilities Director shall consider all relevant factors including, but not limited to, the following:

a. Whether compliance with the water conservation requirements then in effect would result in unemployment or layoff of workers;
b. Whether additional persons are now living or working in the customer's premises that were not living or working in the premises during all or a portion of the billing periods used to calculate the base amount;
c. Whether the customer had, during all or a portion of the billing periods used to calculate the base amount, begun using water conservation practices that remain in use and that reduced the customer's water usage by an amount equivalent to the reduction required by the water supply shortage;
d. Whether any current or anticipated increase in production or manufacturing will require the use of additional water;
e. The extent to which irrigation or watering of landscaping has been made necessary by compliance with fuel load modification programs; and
f. The extent to which the customer needs to use water to mitigate any emergency health or safety hazards.

2. Relief from All Other Requirements. In determining whether relief should be granted from all requirements other than water consumption restrictions, the Utilities Director must find, based on the application and supporting documentation, that:
a. The relief does not constitute a grant of special privilege inconsistent with the limitations imposed by this chapter on other persons and customers; b. Because of special circumstances applicable to the customer's or person's property or its use, the strict application of this chapter would have an impact on the person or customer that is disproportionate to the impact on other similarly situated persons or customers;
c. The condition or situation of the person's or customer's premises for which the relief is sought is not common or general in nature; and
d. The person or customer has achieved or will achieve the maximum feasible reduction in water consumption other than in the specific area or areas from which relief is requested.

D. Agreement. The Utilities Director is empowered to enter into an agreement with any person or customer to resolve the application for relief. The agreement shall be memorialized in writing signed by the person or customer. The agreement shall fix the rights of the person or customer and the City. During the effectiveness of the agreement, the person or customer shall have no further right to seek relief pursuant to the provisions of this section.

E. Final Decision. The Utilities Director shall notify the person or customer of the decision on the application for relief by mailing a notice of the decision to the person or customer by means of first class, postage prepaid, to the address specified on the application.

F. Appeal of Final Decision. A person or customer may appeal the decision of the Utilities Director by submitting a written request within (90) days of the date of the Utilities Director's written decision. A written appeal request shall be submitted to the City Manager and include the reasons for the request and signature of the person or customer submitting the request. The City Manager may approve or disapprove the appeal within (30) days from receipt of a request. The decision of the City Manager shall be final.

G. Willful Misrepresentation. Notwithstanding any other provision of law, no person shall make any willful misrepresentation of a material fact with respect to any application for relief submitted pursuant to this section. Any violation of the provisions of this subsection shall be considered a misdemeanor, punishable as otherwise provided in this Code. (Ord. 2009-24 § 1 (part), 2009)

14.16.120 Enforcement.

A. Responsibility —Implementation Plan. The Utilities Director shall be responsible for the enforcement of this chapter. The Utilities Director shall develop an implementation plan to be used as a guideline for enforcing the provisions of this chapter. The implementation plan shall provide the resources (staffing and equipment) required to ensure the fair and timely execution of these requirements, as well as a detailed execution strategy. In addition, the implementation plan shall ensure, so far as is reasonable under the circumstances, that persons are notified of violations and are provided an opportunity to cure the violation prior to being cited.

B. Additional Enforcement Options. In addition to the means of ensuring compliance set forth in Section

1.04.010, the City may elect to impose the following requirements on a customer in the event of a continuing violation:

1. Water Flow Restrictors. The City may install a water flow restrictor of approximately one gallon per minute for services up to one and one-half inches in size and comparatively sized restrictors for larger services. Prior to doing so, the City shall first provide a minimum of forty-eight (48) hours' notice of its intent to install a water flow restrictor. In the event that a customer refuses to permit the installation of a water flow restrictor following the City's election to do so, the City may terminate the customer's water service.

2. Termination of Service. The City may disconnect a customer's water service for willful violations of mandatory restrictions in this chapter. (Ord. 2009-24 § 1 (part), 2009)

APPENDIX B —
City of Newport Beach 2010 Urban Water Management Plan

City of Newport Beach
3300 Newport Blvd. • Newport Beach, CA 92663
2010 Urban Water
Management Plan
May 2011
Report Prepared By:

Malcolm Pirnie, Inc.
8001 Irvine Center Drive
Suite 1100
Irvine, CA 92618
949-450-9901

Table of Contents
Contents
Executive Summary 1

1. Introduction 1-1

1.1. Urban Water Management Plan Requirements............................................................ 1-1

1.2. Agency Overview.......................................................................................................... 1-4

1.3. Service Area and Facilities........................................................................................... 1-4

1.3.1. Newport Beach's Service Area..................................................................... 1-4

1.3.2. Newport Beach's Water Facilities................................................................. 1-5

2. Water Demand 2-1

2.1. Overview....................................................................................................................... 2-1

2.2. Factors Affecting Demand............................................................................................ 2-1

2.2.1. Climate Characteristics................................................................................. 2-1

2.2.2. Demographics............................................................................................... 2-2

2.2.3. Land Use....................................................................................................... 2-3

2.3. Water Use by Customer Type....................................................................................... 2-4

2.3.1. Overview....................................................................................................... 2-4

2.3.2. Residential.....................................................................................................2-5

2.3.3. Non-Residential.............................................................................................2-5

2.3.4. Other Water Uses.......................................................................................... 2-6

2.3.4.1. Sales to Other Agencies..................................................................... 2-6

2.3.4.2. Non -Revenue Water........................................................................... 2-6

2.4. SBx7-7 Requirements................................................................................................... 2-6

2.4.1. Overview....................................................................................................... 2-6

2.4.2. SBx7-7 Compliance Options......................................................................... 2-7

2.4.3. Regional Alliance........................................................................................... 2-7

2.4.4. Baseline Water Use....................................................................................... 2-8

2.4.5. SBx7-7 Water Use Targets........................................................................... 2-9

2.5. Demand Projections.................................................................................................... 2-10

2.5.1. 25-Year Projections..................................................................................... 2-10

2.5.2. Low Income Household Projections............................................................ 2-10

3. Water Sources and Suaaly Reliabilitv
3-1

3.1. Overview....................................................................................................................... 3-1

3.2. Imported Water............................................................................................................. 3-2

3.2.1. Metropolitan's 2010 Regional Urban Water Management Plan .................... 3-3

3.2.2. Newport Beach's Imported Water Supply Projections .................................. 3-8

3.3. Groundwater................................................................................................................. 3-8

3.3.1. Lower Santa Ana River Groundwater Basin ................................................. 3-9

3.3.2. Basin Production Percentage...................................................................... 3-10

3.3.3. Recharge Facilities...................................................................................... 3-11

3.3.4. Metropolitan Groundwater Replenishment Program ................................... 3-12

3.3.5. Metropolitan Conjunctive Use Program ...................................................... 3-12

3.3.6. Historical Groundwater Production............................................................. 3-12

3.3.7. Projections of Groundwater Production...................................................... 3-13 City of Newport Beach
2010 Urban Water Management Plan

Table of Contents

3.4. Recycled Water........................................................................................................... 3-14

3.5. Supply Reliability......................................................................................................... 3-14

3.5.1. Overview..................................................................................................... 3-14

3.5.2. Factors Impacting Reliability....................................................................... 3-15

3.5.2.1. Water Quality.................................................................................... 3-16

3.5.3. Normal -Year Reliability Comparison........................................................... 3-18

3.5.4. Single Dry -year Reliability Comparison....................................................... 3-18

3.5.5. Multiple Dry -Year Reliability Comparison.................................................... 3-19

4. Demand Manaaement Measures 4-1

4.1. Overview
....................................................................................................................... 4-1

4.2. Water Use
Efficiency Programs.................................................................................... 4-1

4.2.1. DMM 1:

Water Survey Programs for Single -Family Residential and Multi - Family Residential Customers...................................................................... 4-3

4.2.2. DMM 2:

Residential Plumbing Retrofit..........................................................4-3

4.2.3. DMM 3:

System Water Audits, Leak Detection and Repair ..........................4-4

4.2.4. DMM 4:

Metering with Commodity Rates ...................................................... 4-4

4.2.5. DMM 5:

Large Landscape Conservation Programs and Incentives ............. 4-4

4.2.6. DMM 6:

High -Efficiency Washing Machine Rebate Programs ...................... 4-5

4.2.7. DMM 7:

Public Information Programs........................................................... 4-5

4.2.8. DMM 8:

School Education Programs............................................................4-6

4.2.9. DMM 9:

Conservation Programs for Commercial, Industrial and Institutional Accounts........................................................................................................ 4-6

4.2.10. DMM 10:

Wholesale Agency Programs........................................................ 4-8

4.2.11. DMM 11:

Conservation Pricing..................................................................... 4-8

4.2.12. DMM 12:

Water Conservation Coordinator................................................... 4-8

4.2.13. DMM 13:

Water Waste Prohibition................................................................ 4-8

4.2.14. DMM 14:

Residential Ultra -Low -Flush Toilet Replacement Programs ......... 4-8

5. Water Suaalies Continaerll Plan 5-1

5.1. Shortage Actions........................................................................................................... 5-1

5.2. Three -Year Minimum Water Supply............................................................................. 5-5

5.3. Catastrophic Supply Interruption.................................................................................. 5-8

5.4. Prohibitions, Penalties and Consumption Reduction Methods ................................... 5-11

5.5. Impacts to Revenue.................................................................................................... 5-16

5.6. Reduction Measuring Mechanism.............................................................................. 5-17

6. Recycled
Water
6-1

6.1. Agency Coordination..................................................................................................... 6-1

6.2. Wastewater Description and Disposal.......................................................................... 6-1

6.3. Current Recycled Water Uses...................................................................................... 6-2

6.4. Potential Recycled Water Uses.................................................................................... 6-3

6.4.1. Direct Non -Potable Reuse............................................................................. 6-4

6.4.2. Indirect Potable Reuse.................................................................................. 6-4

6.5. Optimization Plan.......................................................................................................... 6-5
City of Newport Beach
2010 Urban Water Management Plan II

Table of Contents

7. Future Water Supply Proiects and Programs 7-1

7.1. Water Management Tools............................................................................................. 7-1

7.2. Transfer or Exchange Opportunities............................................................................. 7-1

7.3. Planned Water Supply Projects and Programs............................................................ 7-1

7.4. Desalination Opportunities............................................................................................ 7-1

7.4.1. Groundwater..................................................................................................7-2

7.4.2. Ocean Water................................................................................................. 7-2

8. UWMP Adoption Process
8-1

8.1. Overview....................................................................................................................... 8-1

8.2. Public Participation....................................................................................................... 8-2

8.3. Agency Coordination..................................................................................................... 8-2

8.4. UWMP Submittal........................................................................................................... 8-3

8.4.1. Review of Implementation of 2005 UWMP................................................... 8-3

8.4.2. Filing of 2010 UWMP.................................................................................... 8-3
List of Tables
Table 2-1: Climate Characteristics............................................................................................... 2-2 Table 2-2: Population — Current and Projected............................................................................ 2-3 Table 2-3: Past, Current and Projected Service Accounts by Water Use Sector ....................... 2-5 Table 2-4: Past, Current and Projected Water Demand by Water Use Sector ............................ 2-5 Table 2-5: Additional Water Uses and Losses (AFY)................................................................... 2-6 Table 2-6: Base Daily per Capita Water Use — 10-year range .................................................... 2-9 Table 2-7: Base Daily per Capita Water Use — 5-year range ...................................................... 2-9 Table 2-8: Preferred Compliance Option and Water Use Targets ............................................ 2-10 Table 2-9: Current and Projected Water Demands (AFY)......................................................... 2-10 Table 2-10: Newport Beach's Demand Projections Provided to Wholesale Suppliers (AFY).... 2-10 Table 2-11: Projected Water Demands for Housing Needed for Low Income Households (AFY).......................................................................................................................................... 2-12 Table 3-1: Metropolitan Average Year Projected Supply Capability and Demands for 2015 to 2035.............................................................................................................................................. 3-5 Table 3-2: Metropolitan Single -Dry Year Projected Supply Capability and Demands for 2015 to 2035.............................................................................................................................................. 3-6 Table 3-3: Metropolitan Multiple -Dry Year Projected Supply Capability and Demands for 2015 to 2035.............................................................................................................................................. 3-7 Table 3-4: Wholesaler Identified & Quantified Existing and Planned Sources of Water (AFY) .. 3-8 Table 3-5: Current Basin Production Percentage...................................................................... 3-10 Table 3-6: Amount of Groundwater Pumped in the Past 5 Years (AFY)................................... 3-13 Table 3-7: Amount of Groundwater Projected to be Pumped (AFY)......................................... 3-14 Table 3-8: Wholesaler Supply Reliability - % of Normal AFY.................................................... 3-15 Table 3-9: Basis of Water Year Data......................................................................................... 3-15 Table 3-10: Factors Resulting in Inconsistency of Supply........................................................ 3-16 Table 3-11: Water Quality — Current and Projected Water Supply Impacts (AFY) ................... 3-18 Table 3-12: Projected Normal Water Supply and Demand (AFY)............................................. 3-18 Table 3-13: Projected Single -Dry Year Water Supply and Demand (AFY) ............................... 3-19 Table 3-14: Projected Multiple Dry Year Period Supply and Demand (AFY)............................ 3-19 Table 4-1: Urban Supplier's Demand Management Measures Overview .................................... 4-2 City of Newport Beach
2010 Urban Water Management Plan III

Table of Contents
Table 4-2: Retrofit Devices and Rebate Amounts Available Under Save Water Save a Buck Program........................................................................................................................................ 4-7
Table 5-1: Water Supply Shortage Stages and Conditions — Rationing Stages ......................... 5-5
Table 5-2: Metropolitan Shortage Conditions.............................................................................. 5-7
Table 5-3: Three -Year Estimated Minimum Water Supply (AFY)............................................... 5-8
Table 5-4: Preparation Actions for Catastrophe......................................................................... 5-10
Table 5-5: Mandatory Prohibitions............................................................................................. 5-11
Table 5-6: Consumption Reduction Methods............................................................................ 5-16
Table 5-7: Penalties and Charges............................................................................................. 5-16
Table 5-8: Revenue Impacts Analysis........................................................................................ 5-17
Table 5-9: Water Use Monitoring Mechanisms.......................................................................... 5-18
Table 6-1: Participating Agencies................................................................................................ 6-1
Table 6-2: Wastewater Collection and Treatment (AFY)............................................................ 6-2
Table 6-3: Disposal of Wastewater (Non-Recycled)(AFY).......................................................... 6-2
Table 6-4: Current Recycled Water Uses (AFY).......................................................................... 6-3
Table 6-5: Projected Future Use of Recycled Water in Service Area(AFY)................................ 6-3
Table 6-6: Projected Recycled Water Uses (AFY)...................................................................... 6-4
Table 6-7: Recycled Water Uses — 2005 Projections compared with 2010 Actual (AFY)........... 6-4
Table 7-1: Opportunities for Desalinated Water........................................................................... 7-2
Table 8-1: External Coordination and Outreach.......................................................................... 8-1
Table 8-2: Coordination with Appropriate Agencies.................................................................... 8-2
List of Figures
Figure 1-1: Regional Location of Urban Water Supplier.............................................................. 1-3 Figure 1-2: City of Newport Beach's Service Area....................................................................... 1-5 Figure 3-1: Current and Projected Water Supplies(AFY)............................................................ 3-2 Appendices
A. Urban Water Management Plan Checklist
B. Orange County Water District Groundwater Management Plan 2009 Update C. Bump Calculation Methodology
D. Chapter 14.16 Water Conservation and Supply Level Regulations, Chapter 14.36 Water Quality
E. 60 Day Notification Letters
F. Public Hearing Notice
G. Copy of Plan Adoption
City of Newport Beach
2010 Urban Water Management Plan IV

Acronyms
Acronyms Used in the Report
20x2020
20% reduction by 2020
Act
Urban Water Management Planning Act
AF
acre-feet
AFY
acre-feet per year
Basin
Orange County Groundwater Basin
BDCP
Bay Delta Conservation Plan
BEA
Basin Equity Assessment
BMP
Best Management Practice
BPP
Basin Production Percentage
CDR
Center for Demographic Research
cfs
cubic feet per second
CII
Commercial/Industrial/Institutional
CIMIS
California Irrigation Management Information System
City
City of Newport Beach
CRA
Colorado River Aqueduct
CUP
Conjunctive Use Program
CUWCC
California Urban Water Conservation Council
DMM
Demand Management Measure
DWR
Department of Water Resources
EOCF #2
East Orange County Feeder #2
ETo
Evapotranspiration
FY
Fiscal Year
FYE
Fiscal Year Ending
GAP
Green Acres Project
GPCD
gallons per capita per day
gpm
gallons per minute
GWRS
Groundwater Replenishment System
HECW
High Efficiency Clothes Washer
HET
high efficiency toilet
HOA
Homeowners Association
IRP
Integrated Water Resources Plan
IWA
International Water Association
LOI
Letter of Intent
MCL
Maximum Contaminant Level
Metropolitan
Metropolitan Water District of Southern California
MF
Microfiltration
MG
million gallons
MGD
million gallons per day
MOU
Memorandum of Understanding
MWDOC
Municipal Water District of Orange County
NBMC
Newport Beach Municipal Code
NDMA
N-nitrosodimethylamine
NOAA
National Oceanic and Atmospheric Administration
OCSD
Orange County Sanitation District
OCWD
Orange County Water District
Poseidon
Poseidon Resources LLC
City of Newport Beach
2010 Urban Water Management Plan v

Acronyms
PPCP
Pharmaceuticals and Personal Care Product
PSA
Public Service Announcements
QSA
Quantification Settlement Agreement
RA
Replenishment Assessment
RHNA
Regional Housing Needs Assessment
RO
Reverse Osmosis
RUWMP
Regional Urban Water Management Plan
RWQCB
Regional Water Quality Control Board
SBx7-7
Senate Bill 7 as part of the Seventh Extraordinary Session SCAB
South Coast Air Basin
SCAG
Southern California Association of Governments
SDCWA
San Diego County Water Authority
SOI
Sphere of Influence
SWP
State Water Project
TDS
Total Dissolved Solids
ULFT
ultra -low -flush toilet
UWMP
Urban Water Management Plan
WEROC
Water Emergency Response Organization of Orange County
WOCWBF #2
West Orange County Water Board Feeder #2
WSAP
Water Supply Allocation Plan
WSCP
Water Shortage Contingency Plan
WSDM
Water Surplus and Drought Management Plan
City of Newport Beach
2010 Urban Water Management Plan VI

Executive Summary
This report serves as the 2010 update of the City of Newport Beach's (City) Urban Water Management Plan (UWMP). The UWMP has been prepared consistent with the requirements under Water Code Sections 10610 through 10656 of the Urban Water Management Planning Act (Act), which were added by Statute 1983, Chapter 1009, and became effective on January 1, 1984. The Act requires "every urban water supplier providing water for municipal purposes to more than 3,000 customers or supplying more than 3,000 acre-feet of water annually" to prepare, adopt, and file an UWMP with the California Department of Water Resources (DWR) every five years. 2010 UWMP updates are due to DWR by August 1, 2011.

Since its passage in 1983, several amendments have been added to the Act. The most recent changes affecting the 2010 UWMP include Senate Bill 7 as part of the Seventh Extraordinary Session (SBx7-7) and SB 1087. Water Conservation Act of 2009 or SBx7- 7 enacted in 2009 is the water conservation component of the Delta package. It stemmed from the Governor's goal to achieve a 20% statewide reduction in per capita water use by 2020 (20x2O2O). SBx7-7 requires each urban retail water supplier to develop urban water use targets to help meet the 20% goal by 2020 and an interim 10% goal by 2015.

Service Area and Facilities
The City provides water to a population of approximately 67,000 throughout its 35.77 square mile service area. The City receives its water from two main sources, the Lower Santa Ana River Groundwater basin, which is managed by the Orange County Water District (OCWD) and imported water from the Municipal Water District of Orange County (MWDOC). Groundwater is pumped from 4 active wells located throughout the City, and imported water is treated at the Diemer Filtration Plant and is delivered to the City through six imported water connections.

Water Demand
Currently, the total water demand for retail customers served by the City is approximately 16,640 acre-feet annually consisting of 10,052 acre-feet of local groundwater and 432 acre-feet of recycled water. In the last five years, the City's water demand has decreased by about 5 percent while population has increased by 1.5 percent. This illustrates the City's proactive efforts in promoting water use efficiency. With its diligence in the promotion of water conservation as well as financial incentives to customers to retrofit their homes and businesses with water efficient devices and appliances, the City is City of Newport Beach
2010 Urban Water Management Plan 1

Executive Summary
projecting a flattening demand trend in the next 25 years despite a projected 11 percent population growth.

With MWDOC's assistance, the City has selected to comply with Option 1 of the SBx7- 7 compliance options. The City is a member of the Orange County 20x2020 Regional Alliance formed by MWDOC. This regional alliance consists of 29 retail agencies in Orange County. Under Compliance Option 1, the City's 2015 interim water use target is 228.1 GPCD and the 2020 final water use target is 202.8 GPCD.

Water Sources and Supply Reliability
The City's main source of water supply is groundwater from the Lower Santa Ana River Groundwater Basin and imported water from Metropolitan through MWDOC. Recycled water was recently added to the City's water supply portfolio. Today, the City relies on 60% groundwater, 37% imported, and 3% recycled water. It is projected that by 2035, the water supply mix will remain roughly the same. The sources of imported water supplies include the Colorado River and the State Water Project (SWP). Metropolitan's 2010 Integrated Water Resources Plan (IRP) update describes the core water resource strategy that will be used to meet full -service demands (non -interruptible agricultural and replenishment supplies) at the retail level under all foreseeable hydrologic conditions from 2015 through 2035.

It is required that every urban water supplier assess the reliability to provide water service to its customers under normal, dry, and multiple dry water years. Metropolitan's 2010 RUWMP finds that Metropolitan is able to meet full service demands of its member agencies with existing supplies from 2015 through 2035 during normal years, single dry year, and multiple dry years. The City is therefore capable of meeting the water demands of its customers in normal, single dry, and multiple dry years between 2015 and 2035, as illustrated in Table 3-12, Table 3-13, and Table 3-14, respectively.

Future Water Supply Projects
Potential recycled water users are locations where recycled water could replace potable water use. These potential users are typically landscape or agricultural irrigation systems, or possibly water users. However, due to the limited access to the project mains and some financial impact on end users, it is not feasible to distribute all of the potential recycled water, and the City does not predict that there will be many other end users in the near future.

In Orange County, there are three proposed ocean desalination projects that could serve MWDOC, including one specifically that may benefit the City. On January 20, 2010, the City signed a non -binding LOI for 7.1 MGD (8,000 AFY) of Huntington Beach Seawater Desalination Project supplies.

City of Newport Beach
2010 Urban Water Management Plan 2

Executive Summary
City of Newport Beach
2010 Urban Water Management Plan 3

1. Introduction

1.1. Urban Water Management Plan Requirements
Water Code Sections 10610 through 10656 of the Urban Water Management Planning Act (Act) requires "every urban water supplier providing water for municipal purposes to more than 3,000 customers or supplying more than 3,000 acre-feet of water annually" to prepare, adopt, and file an UWMP with the California Department of Water Resources (DWR) every five years. 2010 UWMP updates are due to DWR by August 1, 2011.

This UWMP provides DWR with information on the present and future water resources and demands and provide an assessment of the City's water resource needs. Specifically, this document will provide water supply planning for a 25-year planning period in 5-year increments. The plan will identify water supplies for existing and future demands, quantify water demands during normal year, single -dry year, and multiple -dry years, and identify supply reliability under the three hydrologic conditions. The City's 2010 UWMP update revises the 2005 UWMP. This document has been prepared in compliance with the requirements of the Act as amended in 2009, and includes the following analysis:
• Water Service Area and Facilities
• Water Sources and Supplies
• Water Use by Customer Type
• Demand Management Measures
• Water Supply Reliability
• Planned Water Supply Projects and Programs
• Water Shortage Contingency Plan
• Recycled Water
Since its passage in 1983, several amendments have been added to the Act. The most recent changes affecting the 2010 UWMP include Senate Bill 7 as part of the Seventh Extraordinary Session (SBx7-7) and SB 1087. Water Conservation Act of 2009 or SBx7- 7, enacted in 2009, is the water conservation component of the historic Delta package. It stemmed from the Governor's goal to achieve a 20% statewide reduction in per capita water use by 2020 (20x2O2O). SBx7-7 requires each urban retail water supplier to develop urban water use targets to help meet the 20% goal by 2020 and an interim 10% goal by 2015. Each urban retail water supplier must include in its 2010 UWMPs the following information from its target -setting process:

City of Newport Beach
2010 Urban Water Management Plan 1-1

Section 1
Introduction
• Baseline daily per capita water use
• 2020 Urban water use target
• 2015 Interim water use target
• Compliance method being used along with calculation method and support data Wholesale water suppliers are required to include an assessment of present and proposed future measures, programs, and policies that would help achieve the 20 by 2020 goal.

The other recent amendment made to the UWMP Act to be included in the 2010 UWMP is set forth by SB 1087, Water and Sewer Service Priority for Housing Affordable to Low -Income Households. SB 1087 requires water and sewer providers to grant priority for service allocations to proposed developments that include low income housing. SB 1087 also requires UWMPs to include projected water use for single- and multi -family housing needed for low-income households.

The sections in this Plan correspond to the outline of the Act, specifically Article 2, Contents of Plans, Sections 10631, 10632, and 10633. The sequence used for the required information, however, differs slightly in order to present information in a manner reflecting the unique characteristics of the City's water utility. The UWMP Checklist has been completed, which identifies the location of Act requirements in this Plan and is included as Appendix A.

City of Newport Beach
2010 Urban Water Management Plan 1-2

Section 1
Introduction
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Figure 1-1: Regional Location of Urban Water Supplier
City of Newport Beach
2010 Urban Water Management Plan 1-3

Section 1
Introduction

1.2. Agency Overview
The City is located in Orange County, California. It serves a population of approximately 67,000 within a 35.77 square mile through 26,300 service connections. The City supplies groundwater, imported water, and recycled water to its customers. Groundwater is produced from local groundwater wells managed by OCWD and imported water is purchased from MWDOC, the regional wholesale water supplier of Orange County who in turn purchases imported water from northern California and the Colorado River through Metropolitan. The City purchases recycled water from OCWD. Today, the total water demand for the City is approximately 17,000 acre-feet annually consisting of 16,500 acre-feet of potable water and 450 acre-feet of recycled water. Due to its active efforts in promoting water conservation and water use efficiency to residents, the City is projecting a flattening demand trend in the next 25 years despite a projected 11 percent population growth.

The City Council operates under a Council -Manager format of government. Its seven City Council Members are elected by district, but voted on by the population as a whole.

The current City Council members are:
• Michael F. Henn, Mayor
• Steven Rosansky
• Rush N. Hill, II
• Leslie Daigle
• Edward D. Selich
• Nancy Gardner, Mayor Pro Tem
• Keith D. Curry
The City receives its water from two main sources, the Lower Santa Ana River Groundwater basin, which is managed by the Orange County Water District (OCWD) and imported water from the Municipal Water District of Orange County (MWDOC).

MWDOC is Orange County's wholesale supplier and is a member agency of the Metropolitan Water District of Southern California (Metropolitan).

1.3. Service Area and Facilities

1.3.1. Newport Beach's Service Area
Located along the Orange County coast of Southern California, the City is bounded to the west by the Pacific Ocean. To the north, south, and east, the City is surrounded by the cities of Huntington Beach, Laguna Beach, Irvine and Costa Mesa.

The water service area is entirely within the City's boundaries, and covers approximately

35.77 square miles. A map of the City's service area is shown in Figure 1-2. The City serves a population of approximately 67,000 through 26,300 service connections. The City of Newport Beach
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Introduction
City supplies groundwater, imported water, and recycled water to its residential and commercial customers. The City does not supply water to any agency customers.

Figure 1-2: City of Newport Beach's Service Area

1.3.2. Newport Beach's Water Facilities
Imported Water Supply Facilities
MWDOC provides imported water to the City. MWDOC receives its water from Metropolitan. Most of Metropolitan's imported water supply is provided through the State Water Project (SWP) and Colorado River Aqueduct (CRA) and is treated at the Diemer and Weymouth plants. A large groundwater supply is also available, as described in Section 3.3. The use of this supply is regulated by the Basin Pumping Percentage (BPP) as set by the Orange County Water District (OCWD).

All of the water supplied by the City is sold to its retail customers (residential and commercial). The City maintains its own retail distribution system. The City delivers potable water through its water system which consists of approximately 284 miles of pipelines ranging in size from 4-inch to 30-inch with various pipe materials. The City has an extensive distribution system, which includes five pressure zones and six connections City of Newport Beach
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along the Orange County Feeder and the East Orange County Feeder No. 2. The total available capacity is 104 cfs. The City has five pump stations which deliver water to the upper zones, and backup generation facilities ensure that the City can still deliver water to all zones during a rolling blackout.

Groundwater Facilities
In addition to surface water, the City receives a large percentage of its supply from groundwater. Groundwater is pumped from four wells within the City of Fountain Valley and travels through over 6 miles of the 30-inch Groundwater Transmission Main in Fountain Valley, Huntington Beach, and Costa Mesa. In addition, a pump station, a treatment facility, and a 3-MG reservoir assist in the transmission and treatment effort.

The City meets up to 62 percent of its demand through groundwater, under regulations of OCWD's BPP.

Recycled Water Facilities
Through an agreement with the OCWD, the City purchases between 300 and 800 acre- feet per year (AFY) of recycled water for some large irrigation users. The City has no capability of treating water to produce reclaimed water, but OCWD has an elaborate system. The City began serving recycled water in 1999. OCWD provides water through the Green Acres Project, which has the capability to delivery up to 1,000 AFY. The City has investigated future sites or locations for reclaimed water, but there are limitations to the availability of reclaimed connections. The City is looking into the possibility of inter - district reclaimed water transfers to provide reclaimed water to some associations and recreation facilities.

Water Transmission System
Water is delivered to the City's customers from the Groundwater Transmission Main, and from diversions off of the Orange County Feeder and the East Orange County Feeder No.

2. The transmission system consists of pipelines, booster pump stations, and storage tanks. The current capacity of the City's potable water supply is 104 cfs.

City of Newport Beach
2010 Urban Water Management Plan 1-6

2. Water Demand

2.1. Overview
Currently, the total water demand for retail customers served by the City is approximately 16,640 acre-feet annually consisting of 10,052 acre-feet of local groundwater and 432 acre-feet of recycled water. In the last five years, the City's water demand has decreased by about 5 percent while population has increased by 1.5 percent. This illustrates the City's proactive efforts in promoting water use efficiency. With its diligence in the promotion of water conservation as well as financial incentives to customers to retrofit their homes and businesses with water efficient devices and appliances, the City is projecting a flattening demand trend in the next 25 years despite a projected 11 percent population growth.

The passage of SBx7-7 will increase efforts to reduce the use of potable supplies in the future. This new law requires all of California's retail urban water suppliers serving more than 3,000 AFY or 3,000 service connections to achieve a 20 percent reduction in demands (from a historical baseline) by 2020. Due to great water conservation efforts in the past decade, the City is on its way to meeting this requirement on its own. Moreover, the City has elected to join the Orange County 20x2020 Regional Alliance. The City together with 28 other retail agencies in Orange County are committed to reduce the region's water demand by 2020 through the leadership of MWDOC, the region's wholesale provider.

This section will explore in detail the City's current water demands by customer type and the factors which influence those demands as well as providing a perspective of its expected future water demands for the next 25 years. In addition, to satisfy SBx7-7 requirements, this section will provide details of the City's SBx7-7 compliance method selection, baseline water use calculation, and its 2015 and 2020 water use targets.

2.2. Factors Affecting Demand
Water consumption is influenced by many factors from climate characteristics of that hydrologic region, to demographics, land use characteristics, and economics. The key factors affecting water demand in the City's service area are discussed below.

2.2.1. Climate Characteristics
The City is located in Southern California's coastal plain where the climate is characteristically Mediterranean, with mild year-round temperatures, sunny days, and cool evenings. The average summer and winter temperatures are 757 and 657, City of Newport Beach
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respectively, and the average annual rainfall is just under 12 inches (Table 2-1). The average Evapotranspiration (ETo) is almost 50 inches per year which is four times the annual average rainfall. This translates to a high demand for landscape irrigation for homes, commercial properties, parks, and golf courses. Moreover, a region with low rainfall like Southern California is also more prone to droughts.

Table 2-1: Climate Characteristics
Standard
Monthly Average
ETo (inches) [1]
Annual Rainfall
(inches) [2]
Average
Temperature
(-F) [3]
Jan

2.18 2.60

55.9 Feb

2.49 2.54

56.7 Mar

3.67 2.25

57.4 Apr

4.71 0.70

59.5 May

5.18 0.18

61.7 Jun

5.87 0.08

64.3 Jul

6.29 0.02

67.3 Aug

6.17 0.09

68.7 Sep

4.57 0.30

68.1 Oct

3.66 0.28

65.1 Nov

2.59 1.02

60.0 Dec

2.25 1.59

56.1 Annual

49.63 11.65

61.7 [1] CIMIS Station #75, Irvine, California from October 1987 to Present [2] NOAA, Newport Beach Harbor, California 1971 to 2000, Mean Precipitation Total [3] NOAA, Newport Beach Harbor, California 1971 to 2000, Mean Temperature The source of the City's imported water supplies, the State Water Project and Colorado River Project, is influenced by weather conditions in Northern California and along the Colorado River. Both regions have recently been suffering from multi -year drought conditions and record low rainfalls which directly impact demands and supplies to Southern California.

2.2.2. Demographics
The City serves a population of 67,030. The population within the City's service area is expected to increase by 11 percent in the next 25 years, or 0.44 percent annually. Table 2- 2 shows the population projections for the next 25 years based on the California State University at Fullerton, Center for Demographic Research (CDR) projections. Due to proactive water conservation efforts, future water demands are expected to increase at a much lower rate compared to the population growth.

City of Newport Beach
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Water Demand
Table 2-2: Population — Current and Projected
2010
2015
2020
2025
2030
2035
Service Area Population [1]
67,030
68,478
69,926
71,375
72,823
74,271
[ 1 ] Center for Demographic Research, California State University, Fullerton 2010 Other demographic factors that also play a role in influencing demands include recreation and tourism which is an important industry in the City. Tourism affects seasonal demands with higher demands in the summer especially at beach facilities as well as hotels and restaurants.

Over 50 percent of the City's residents are employed in professional, managerial, and administrative occupations. The median age of City residents is 40 years, and the median household income is estimated at about $110,500 per year'. The average household is 2.8 persons per dwelling unit.

2.2.3. Land Use
Land use within the City's service area is characterized as mostly suburban, and the City is almost built -out.

The City may consider the approval of a 401-acre Newport Banning Ranch development project located within the City's Coastal Zone. The development will comprise of approximately 252 acres of open space and development of up to 1,375 residential dwelling units, 75,000 square feet of commercial area, a 75 room resort inn, and approximately 52 acres of parks. Approximately 40 acres of the project site are located within the City limits and approximately 361 acres are located outside the city limits but within the City's Sphere of Influence (SOI). An annexation and a boundary adjustment will be coordinated through the Local Agency Formation Commission to extend the City limits to include portion of the project site currently within the SOI and to extend the City's water service area to provide water to the entire project site. The estimated total average annual water demand from this development is 613.5 acre-feet2. Implementation of this project would be subject to compliance with the water conservation requirements of Newport Beach Municipal Code (NBMC). NBMC requires water efficiency design standards be incorporated into the landscape and irrigation plans as well as other indoor conservation measures including use of low water usage appliances and waterless urinals in public men's restrooms.
12007 American community Survey
2 Newport Banning Ranch Water Supply Assessment, City of Newport Beach (October 12, 2010) City of Newport Beach
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Water Demand

2.3. Water Use by Customer Type
The knowledge of an agency's water consumption by type of use or by customer class is key to developing that agency's water use profile which identifies when, where, how, and how much water is used, and by whom within the agency's service area. A comprehensive water use profile is critical to the assessment of impacts of prior conservation efforts as well as to the development of future conservation programs.

This section provides an overview of the City's water consumption by customer type in 2005 and 2010, as well as projections for 2015 to 2035. The customer classes are categorizes as follows: single-family residential, multi -family residential, commercial/industrial/institutional (CII), dedicated landscape, and agriculture. Other water uses including sales to other agencies and non -revenue water are also discussed in this section.

2.3.1. Overview
The City has maintained approximately 26,361 customer connections to its potable water distribution system since 2005. The City is expected to maintain the same numbers of connections through to at least 2015. After that the City is projecting a 5 percent increase by the year 2020 remaining through to 2035. All connections in the City's service area are metered.

Approximately 60 percent of the City's water demand is residential.

Commercial/industrial and dedicated landscape sectors each consume approximately 20 percent of the City potable water supply. A small portion of the City's demand is from government/institutional establishments such as municipal buildings and hospitals. The City does not provide any sales to agriculture, nor other agencies, saline water intrusion barriers, groundwater recharge, or conjunctive use. A 4 percent increase in water demand between 2010 and 2035 is anticipated for the City's service area while population is projected to increase by 11 percent over the same period.

Tables 2-3 and 2-4 provide a summary of past, current, and projected water use by customer class and the number of water service customers by sector in five-year increments from 2005 through to 2035.

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Water Demand
Table 2-3: Past, Current and Projected Service Accounts by Water Use Sector Fiscal
Number of Accounts by Water Use Sector
Year
Ending
Single
Family
Multi-
Family
Commercial
/Industrial
Institutional
Landscape
Total
Accounts
2005
18,595
4,065
1,273
571
983
25,487
2010
19,230
4,198
1,319
596
1,018
26,361
2015
19,653
4,292
1,348
609
1,041
26,943
2020
20,068
4,382
1,377
622
1,063
27,512
2025
20,486
4,473
1,405
635
1,085
28,084
2030
20,900
4,564
1,434
648
1,107
28,653
2035
21,316
4,655
1,462
661
1,129
29,223
Table 2-4: Past, Current and Projected Water Demand by Water Use Sector Fiscal
Water Demand by Water Use Sectors (AFY)
Year
Ending
Single
Family
Multi-
Family
Commercial
/Industrial
Institutional
Landscape
Total
Demand
2005
7,482
2,597
3,300
734
3,719
17,831
2010
7,297
2,308
2,960
370
3,710
16,645
2015
7,258
2,300
2,947
378
4,140
17,023
2020
7,411
2,348
3,009
386
41268
17,422
2025
7,565
2,397
3,072
394
4,346
17,774
2030
7,718
2,446
3,134
402
4,424
18,124
2035
7,872
2,494
3,196
410
4,502
18,474

2.3.2. Residential
Residential water use accounts for the majority of the City's water demands. The single family residential sector accounts for approximately 44 percent and multi -family residential accounts for 14 percent of the total water demand. The remaining demands are for the non-residential sector and system losses. Water consumption by the residential sector is projected to remain at about 58 percent through the 25-year planning horizon.

2.3.3. Non -Residential
The City has a mix of commercial uses (markets, restaurants, etc.), public entities (such as schools, fire stations and government offices), office complexes, light industrial, warehouses and facilities serving the public. In 2010 non-residential demand was approximately 42 percent of the overall demand and is expected to remain so through 2035. Commercial, industrial, and institutional (CII) uses (excluding large landscape) represent a combined 20 percent of the City's total demand. Demands from large City of Newport Beach
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Water Demand
landscapes such as parks and golf courses are expected to remain at around 22 percent of the City's total water demands for the next 25 years.

2.3.4. Other Water Uses

2.3.4.1. Sales to Other Agencies
While the City does sell water outside of its service area, the City does not sell water to other agencies.

2.3.4.2. Non -Revenue Water
Non -revenue water is defined by the International Water Association (IWA) as the difference between distribution systems input volume (i.e. production) and billed authorized consumption. Non -revenue water consists of three components: unbilled authorized consumption (e.g. hydrant flushing, fire fighting, and blow -off water from well start-ups), real losses (e.g. leakage in mains and service lines), and apparent losses (unauthorized consumption and metering inaccuracies).

The City's non -revenue water accounts for about 6 percent of the City's total demand (Table 2-5).

Table 2-5: Additional Water Uses and Losses (AFY)
Water Use
Fiscal Year Ending
2005
2010
2015
2020
2025
2030
2035
Saline Barriers
Groundwater Recharge
Conjunctive Use
Raw Water
Recycled Water
Unaccounted-for System Losses
925
990
1,078
1,082
1,085
1,099
1,108
Total
925
990
1,078
1,082
1,085
1,099
1,108

2.4. SBx7-7 Requirements

2.4.1. Overview
SBx7-7, which became effective on February 3, 2010, is the water conservation component to the Delta legislative package. It seeks to implement Governor Schwarzenegger's 2008 water use reduction goals to achieve a 20% statewide reduction in urban per capita water use by December 31, 2020. As discussed above, the bill requires each urban retail water supplier to develop urban water use targets to help meet the 20% goal by 2020 and an interim 10% goal by 2015. The bill establishes methods for urban retail water suppliers to determine targets to help achieve water reduction targets. The City of Newport Beach
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Water Demand
retail water supplier must select one of the four compliance options. The retail agency may choose to comply to SBx7-7 as an individual or as a region in collaboration with other water suppliers. Under the regional compliance option, the retail water supplier still has to report the water use target for its individual service area. The bill also includes reporting requirements in the 2010, 2015, and 2020 UWMPs. An agency that does not comply with SBx7-7 requirement will not be eligible for a water grant or loan from the state on and after July 16, 2016.

2.4.2. SBx7-7 Compliance Options
DWR has established four compliance options for urban retail water suppliers to choose from. Each supplier is required to adopt one of the four options to comply with SBx7-7 requirements. The four options include:
• Option I requires a simple 20% reduction from the baseline by 2020 and 10 percent by 2015.
• Option 2 employs a budget -based approach by requiring an agency to achieve a performance standard based on three metrics
o Residential indoor water use of 55 GPCD
o Landscape water use commiserate with Model Landscape Ordinance o 10 percent reduction in baseline CII water use
• Option 3 is to achieve 95% of the applicable state hydrologic region target as set forth in the State's 20x2020 Water Conservation Plan.
• Option 4 requires the subtraction of Total Savings from the Base GPCD:
o Total Savings includes indoor residential savings, meter savings, CII savings, and landscape and water loss savings.

Newport Beach's Compliance Option Selection
With MWDOC's assistance in the calculation of the City's base daily per capita use and water use targets, the City has selected to comply with Option 1.

While each retail agency is required to choose a compliance option in 2010, DWR allows for the agency to change its compliance option in 2015. This will allow the City to determine its water use targets for Compliance Option 2 and 4 as it anticipates more data to be available for targets calculation in the future.

2.4.3. Regional Alliance
Retail agencies can choose to meet the SBx7-7 targets on its own or several retail agencies may form a regional alliance and meet the water use targets as a region. The benefit for an agency that joins a regional alliance is that it has multiple means of meeting compliance.

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2010 Urban Water Management Plan 2-7

Section 2
Water Demand
The City is a member of the Orange County 20x2020 Regional Alliance formed by MWDOC. This regional alliance consists of 29 retail agencies in Orange County as described in MWDOC's 2010 RUWMP. The Regional Alliance Weighted 2015 target is 174.1 GPCD and 2020 target is 156.5 GPCD.

2.4.4. Baseline Water Use
The first step to calculating an agency's water use targets is to determine its base daily per capita water use (baseline water use). This baseline water use is essentially the agency's gross water use divided by its service area population, reported in gallons per capita per day (GPCD). The baseline water use is calculated as a continuous 10-year average during a period which ends no earlier than December 31, 2004 and no later than December 31, 2010. Agencies that recycled water made up 10 percent or more of 2008 retail water delivery can use up to a 15-year average for the calculation.

Recycled water use represents less than 10% of the City's retail delivery in 2008; therefore, a 10-year instead of a 15-year rolling average was calculated. The City's baseline water use is 253.5 GPCD which was obtained from the 10-year period July 1, 1995 to June 30, 2005.

Tables 2-6 and 2-7 provide the base period ranges used to calculate the baseline water use for the City as well as the service area population and annual water use data which the base daily per capita water use was derived. Data provided in Table 2-6 was used to calculate the continuous 10-year average baseline GPCD. Moreover, regardless of the compliance method adopted by the City, it will need to meet the minimum water use target of 5% reduction from a five-year baseline as calculated in Table 2-7. Because the City is an OCWD agency, the City's gross water use includes deductions for indirect potable recycled water use from the Groundwater Replenishment System (GWRS) and Water Factory 21 managed by OCWD. The calculations for the gross water use are described in MWDOC's 2010 RUWMP.

City of Newport Beach
2010 Urban Water Management Plan 2-8

Section 2
Water Demand
Table 2-6: Base Daily per Capita Water Use — 10-year range 10 Year Avg I July 1, 1995 1 June 30, 2005
Fiscal Year
•
1996
Service Area ulation
60,709
Gross Water Use
.. • per day)
15,967,145
D. P-Capita
Use
263
1997
61,277
16,814,358
274
1998
61,896
15,921,266
257
1999
62,514
16,976,611
272
2000
64,923
16,865,461
260
2001
66,033
16,197,012
245
2002
66,495
16,062,298
242
2003
66,734
16,083,658
241
2004
65,500
15,985,387
244
2005
1 65,993
1 15,630,375
1 237
Base Daily Per Capita Water Use:
1 253.5
[1 ] The most recent year in base period must end no earlier than December 31, 2004, and no later than December 31, 2010. The base period cannot exceed 10 years unless at least 10 percent of 2008 retail deliveries were met with recycled water.

Table 2-7: Base Daily per Capita Water Use — 5-year range 5 Year Ava I Julv 1. 2003 June 30. 2008
Year
2004
WaterFiscal
Service Area Population Gross - Daily Per..WaterEnding (gallons per day) 65,500 15,985,387
Use
244
2005
65,993 15,630,375
237
2006
65,962 15,616,451
237
2007
66,067 16,677,329
252
2008
66,451 16,038,474
241
Base Daily Per Capita Water Use:
242.3
[2] The base period must end no earlier than December 31, 2007, and no later than December 31, 2010.

2.4.5. SBx7-7 Water Use Targets
Under Compliance Option 1, the simple 20 percent reduction from the baseline, the City's 2015 interim water use target is 228.1 GPCD and the 2020 final water use target is 202.8 GPCD as summarized in Table 2-8.

City of Newport Beach
2010 Urban Water Management Plan 2-9

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Water Demand
Table 2-8: Preferred Compliance Option and Water Use Targets Option 1 - Simple 20% Reduction 1 253.5 228.1 1 202.8 1

2.5. Demand Projections

2.5.1. 25-Year Projections
One of the main objectives of this UWMP is to provide an insight into the City's future water demand outlook. Currently, the City's total water demand is 16,645 acre-feet comprising of 60% local groundwater, 37% imported water, and 3% recycled water. As illustrated in Table 2-9, the City's water demand is expected to increase by 11 % in the next 25 years to 18,474 acre-feet by 2035.

Table 2-9: Current and Projected Water Demands (AFY)
Water Supply Sources
Fiscal Year Ending
2010
2015
2020
2025
2030
2035-opt
MWDOC (Imported
Treated Full Service
(non-int.))
6,161
6,298
6,430
6,564
6,697
6,830
BPP Groundwater
10,052
10,275
10,492
10,710
10,927
11,144
Recycled Water
432
450
500
500
500
500
Total
16,645
17,023
17,422
17,774
18,124
18,474
The City's 25-year demand projections for imported water shown in Table 2-10 are based on the projections provided by the City to MWDOC. As the regional wholesale supplier of Orange County, MWDOC works in collaboration with each of its member agencies as well as with Metropolitan, its wholesaler, to develop demand projections for imported water.

Table 2-10: Newport Beach's Demand Projections Provided to Wholesale Suppliers (AFY) Wholesaler
Fiscal Year Ending
2015
2020
2025
2030
2035-opt
MWDOC
6,298
6,430
6,564
6,697
6,830

2.5.2. Low Income Household Projections
One significant change to the UWMP Act since 2005 is the requirement for retail water suppliers to include water use projections for single-family and multifamily residential housing needed for lower income and affordable households. This requirement is to assist the retail suppliers in complying with the requirement under Section 65589.7 of the Government Code that suppliers grant a priority for the provision of service to housing City of Newport Beach
2010 Urban Water Management Plan 2-10

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Water Demand
units affordable to lower income households. A lower income household is defined as a household earning 80% of the County of Orange's median income or less.

In order to identify the planned lower income housing projects within its service area, DWR3 recommends that retail suppliers may rely on Regional Housing Needs Assessment (RHNA) or Regional Housing Needs Plan information developed by the local council of governments, the California Department of Housing and Community Development.

The RHNA is an assessment process performed periodically as part of Housing Element and General Plan updates at the local level. Regional Council of Governments in California are required by the State Housing Element Law enacted in 1980 to determine the existing and projected regional housing needs for persons at all income levels. The RHNA quantifies the need for housing by income group within each jurisdiction during specific planning periods. The RHNA is used in land use planning, to prioritize local resource allocation and to help decide how to address existing and future housing needs.

The RHNA consists of two measurements: 1) existing need for housing, and 2) future need for housing.

The current RHNA planning period is January 1, 2006 to June 30, 2014 completed by the Southern California Association of Governments (SCAG) in 2007. The next RHNA which will cover the planning period of January 1, 2011 to September 30, 2021 is not expected to be completed until fall of 2012; therefore, the 2007 RHNA will be used for the purpose of this 2010 UWMP.

Based on the 2007 Final Regional Housing Need Allocation Plano, the projected housing need for low and very low income households (hereafter referred to as low-income) in the City of Newport Beach are 18.0% and 22.0%, respectively or 40.0% combined.

Therefore, from inference, it is estimated that approximately 40.0% of the projected water demands within the City's service area will be for housing needed for low income households. Table 2-11 provides a breakdown of the projected water needs for low income single family and multifamily units. The projected water demands shown here represent 40.0% of the projected water demand by customer type for single-family and multifamily categories provided in Table 2-4 above. For example, the total single family residential demand is projected to be 7,258 AFY in 2015 and 7,872 AFY in 2035. The projected water demands for housing needed for single family low income households are 2,903 and 3,149 AFY for 2015 and 2035, respectively.
3 California Department of Water Resources, Guidebook to Assist Urban Water Suppliers to Prepare a 2010 UWMP, Final (March 2011)
4 Southern California Association Governments, Final Regional Housing Need Allocation Plan for Jurisdictions within the Six County SCAG Region (July 2007) City of Newport Beach
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Water Demand
Table 2-11: Projected Water Demands for Housing Needed for Low Income Households (AFY)
Water Use Sector
Fiscal Year Ending
2015
2020
5 2030
2035-opt
Total Retail Demand
17,023
17,422
17,774
18,124
18,474
Total Residential Demand
9,558
9,759
9,962
10,164
10,366
Total Low Income Households Demand
3,823
3,904
3,985
4,066
4,146
SF Residential Demand -Total
7,258
7,411
7,565
7,718
7,872
SF Residential Demand - Low Income Households
2,9031
2,964
3,026
3,087
3,149
MF Residential Demand -Total
2,300
2,348
2,397
2,446
2,494
MF Residential Demand - Low Income Households
920
939
959
978
998
City of Newport Beach
2010 Urban Water Management Plan 2-12

3. Water Sources and Supply Reliability

3.1. Overview
The City's main source of water supply is groundwater from the Lower Santa Ana River Groundwater Basin and imported water from Metropolitan through MWDOC. Recycled water was recently added to the City's water supply portfolio. Today, the City relies on 60% groundwater, 37% imported, and 3% recycled water. It is projected that by 2035, the water supply mix will remain roughly the same.

The City works together with three primary agencies — Metropolitan, MWDOC, and OCWD to insure a safe and high quality water supply, which will continue to serve the community in periods of drought and shortage. The sources of imported water supplies include the Colorado River and the State Water Project (SWP). Metropolitan's 2010 Integrated Water Resources Plan (IRP) update describes the core water resource strategy that will be used to meet full -service demands (non -interruptible agricultural and replenishment supplies) at the retail level under all foreseeable hydrologic conditions from 2015 through 2035. The imported water supply numbers shown here represent only the amount of supplies projected to meet demands and not the full supply capacity.

Local groundwater pumped from the City's wells is managed by OCWD. The Lower Santa Ana River Groundwater Basin is not adjudicated. In any given year, the amount of water which each City is allowed to pump out of the basin is based on the basin production percentage (BPP) established by OCWD. The OCWD sets the percentage of groundwater that an agency can pump based on their total potable water demand. The BPP fluctuates year by year but it is set uniformly for all Producers. Historically, BPP has ranged between approximately 60% to 80% depending on groundwater conditions, availability of recharge water supplies, and basin management objectives. For 2010/11, the BPP was set at 62 percent.5 As illustrated in Figure 3-1, the BPP is assumed to remain at the conservative 62% level for the next 25 years. The remaining demand is projected to be met through imported water from Metropolitan/MWDOC and through a small portion of recycled water.
5 The BPP was changed by OCWD in late April 2010 and effective July 2010 to 62 percent.

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Section 3
100%
90%
80%
70%
60%
50%
40%
30%
20%
10%
0%
Water Sources and Supply Reliability
Figure 3-1: Current and Projected Water Supplies (AFY)
The following sections provide a detailed discussion of the City's three main water sources as well as projections to the City's future water supply portfolio for the next 25 years. Moreover, this compares projected supply and demand under various hydrological conditions to determine the City's supply reliability for the 25 year planning horizon.

This section satisfies the requirements of § 10631 (b) and (c), and 10635 of the Water Code.

3.2. Imported Water
The City currently relies on 6,161 AFY of imported water wholesaled by Metropolitan through MWDOC to supplement local groundwater. Imported water represents approximately 37% of the City's total water supply. Metropolitan's principal sources of water originate from two sources - the Colorado River via the Colorado Aqueduct and the Lake Oroville watershed in Northern California through the State Water Project (SWP).

This water is treated at the Robert B. Diemer Filtration Plant located north of Yorba Linda. Typically, the Diemer Filtration Plant receives a blend of Colorado River water from Lake Mathews through the Metropolitan Lower Feeder and SWP water through the Yorba Linda Feeder. The AGENCY currently maintains six connections to the Metropolitan system along the Orange County Feeder and the East Orange County Feeder No. 2. The total available capacity is 104 cfs.

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Water Sources and Supply Reliability

3.2.1. Metropolitan's 2010 Regional Urban Water Management Plan Metropolitan's 2010 Regional Urban Water Management Plan (RUWMP) reports on its water reliability and identifies projected supplies to meet the long-term demand within its service area. It presents Metropolitan's supply capacities from 2015 through 2035 under the three hydrologic conditions specified in the Act: single dry -year, multiple dry -years, and average year.

Colorado River Supplies
Colorado River Aqueduct supplies include supplies that would result from existing and committed programs and from implementation of the Quantification Settlement Agreement (QSA) and related agreements to transfer water from agricultural agencies to urban uses. Colorado River transactions are potentially available to supply additional water up to the CRA capacity of 1.25 MAF on an as -needed basis.

State Water Project Supplies
Metropolitan's State Water Project (SWP) supplies have been impacted in recent years by restrictions on SAT operations in accordance with the biological opinions of the U.S.

Fish and Wildlife Service and National Marine Fishery Service issued on December 15, 2008 and June 4, 2009, respectively. In dry, below -normal conditions, Metropolitan has increased the supplies received from the California Aqueduct by developing flexible Central Valley/SWP storage and transfer programs. The goal of the storage/transfer programs is to develop additional dry -year supplies that can be conveyed through the available Banks pumping capacity to maximize deliveries through the California Aqueduct during dry hydrologic conditions and regulatory restrictions.

In June 2007, Metropolitan's Board approved a Delta Action Plan 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 Bay -Delta while the long-term solution is implemented.

State and federal resource agencies and various environmental and water user entities are currently engaged in the development of the Bay Delta Conservation Plan (BDCP), which is aimed at addressing the basic elements that include the Delta ecosystem restoration, water supply conveyance, and flood control protection and storage development. In evaluating the supply capabilities for the 2010 RUWMP, Metropolitan assumed a new Delta conveyance is fully operational by 2022 that would return supply reliability similar to 2005 condition, prior to supply restrictions imposed due to the Biological Opinions.

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Water Sources and Supply Reliability
Storage
Storage is a major component of Metropolitan's dry year resource management strategy.

Metropolitan's likelihood of having adequate supply capability to meet projected demands, without implementing its Water Supply Allocation Plan (WSAP), is dependent on its storage resources. In developing the supply capabilities for the 2010 RUWMP, Metropolitan assumed a simulated median storage level going into each of five-year increments based on the balances of supplies and demands.

Supply Reliability
Metropolitan evaluated supply reliability by projecting supply and demand conditions for the single- and multi -year drought cases based on conditions affecting the SWP (Metropolitan's largest and most variable supply). For this supply source, the single driest -year was 1977 and the three-year dry period was 1990-1992. Metropolitan's analyses are illustrated in Tables 3-1, 3-2, and 3-3 which correspond to Metropolitan's 2010 RUWMP's Tables 2-11, 2-9 and 2-10, respectively. These tables show that the region can provide reliable water supplies not only under normal conditions but also under both the single driest year and the multiple dry year hydrologies.

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Water Sources and Supply Reliability
Table 3-1: Metropolitan Average Year Projected Supply Capability and Demands for 2015 to 2035
AverageYear
Supply Capability] and Projected Demands
Average of 1922-2004 Hydrologies
[acre-feet per year]
Forecasti
Current Programs
In -Region Storage and Programs
California Aqueduct2
Colorado River Aqueduct
Colorado River Aqueduct Supply3
Aqueduct Capacity Lim1t4
Colorado River Aqueduct Capability
685,000
1,550,000
1,507,000
1,250, 000
1,250,000
931,000
1,629,000
1,529,000
1, 250, 000
1,250,000
1,076,000
1,763,000
1,472,000
1,250,000
1,250,000
964,000
1,733,000
1,432,000
1,250,000
1,250,000
830,000
1,734,000
1,429,000
1,250, 000

1.250,000
Capability of Current Programs
3,485,000
3,810,000
4,089,000
3,947,000
3,814,000
Demands
Firm Demands of Metropolitan
IID-SDCWATransfers and Canal Linings
1,826,000
180,000
1,660,000
273,000
1,705,000
280,000
1,769,000
280,000
1,826,000
280,000
Total Demands on Metropolitans
2,006,000
1,933,000
1385,000
2,049,000
2,106,000
Surplus
1,479,000
1,877,000
2,104,000
1,898,000
1,708,000
Programs Under Development
In -Region Storage and Programs
California Aqueduct
Colorado River Aqueduct
Colorado River Aqueduct Supply3
Aqueduct Capacify Lrrmit4
Colorado River Aqueduct Capability
206,000
382,000
187,000
0 0
306,000
383,000
187,000
0 0
336,000
715,000
187,000
0 0
336,000
715,000
182,000
0 a
336,000
715,000
182,000
6 0
Capability of Proposed Programs
588,000
689,000
1,051,000
1,051,000
1,051,000
Potential Surplus
2,067,000
2,566,000
3,155,000
2,949,000
2,759,000
1 Represents Supply Capability for resource programs underlisted year type. z California Aqueduct includes Cenfrd Valley transfers and storage program supplies conveyed by the aqueduct. 3 Colorado River Aqueduct includes water management programs, IID-SDMA transfers and canal linings conveyed by the aqueduct.
4MaximUm CRA deliveries limited to 1.25 MAF including IID-SDMA transfers and canal linings. sFirm demands ore ❑dlusted to include IID-5DCINA transfers and canal linings. These supplies are calculated as local supply, but need to be shown for the purposes of CRA cal ly limit calculafions without double counting.

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Section 3
Water Sources and Supply Reliability
Table 3-2: Metropolitan Single -Dry Year Projected Supply Capability and Demands for 2015 to 2035
Single Dry -Year
Supply Capability' and Projected Demands
Repeat of 1977 Hydrology
Ir7rr -f it r)er yFclo
Forecast Year
I
7 2025
Current Programs
In -Region Storage and Programs
California Aqueduct2
Colorado River Aqueduct
Colorado River Aqueduct 5upply3
Aqueduct Capacity Limff4
Colorado River Aqueduct Capability
685,000
599,000
1,416,000
1,250,000
1,250,000
931,001)
AOLOOD

1.824.001)
1,259,009

1.251001)
1,076,000
651,000
1,669,000
1,250,000
1,250,000
964,000
607 ,000
1,419,000
1,25G,000

1.250,000
830,000

AIO,OGO
1 A19,000
1,250.000
I r250,000
Capability of Current Programs
2,457,000
2,782,000
2,977,000
2,823,000
2,690,000
Demands
Firm Demands of Metropolitan
IIL]-SCCW.A Transfers and Cara Linings
I ,5'S I ,UOU
180,000
I ,88Y,UOL)
273,001)
1 ,1/2 I 'DUO
280,000
I ,y74,OUO
28C,,000

1.039,OOU
280,000
Total Demands on Metropolitans
2,171,000
2,162,000
2,201,000
2,254,000

2.319,000
Surplus
266,000
620,000
776,000
569,000
371,000
Programs Under Development
In -Region Storage and'rograms
Colifornia Aqueduct
Colorado River Arlueriuct
Colorado River Aqueduct 5upply3
Aqueduct Capacity bmff4
Calurudu River Aqueducl Capabilily
206,000
556,000
187,000
0 ❑
306,001)
556,001)
187,001)
9 0
336,000
700,000
187,000
0 0
_36,000
700,000
182,000
0 0
336,000
700,000
182,000
0 0
Capability of Proposed Programs
762,000
862,OOD
1,036,000
1,036,000
1,D36,OD0
Potential Surplus
1,D48,000
1,482,000
1,812,000
1,605,000

1.407,0 00
r Represents Supply Capability for resource programs underlisled yecr type. 2 California Aqueduct includes Central Valley transfers and storage progrm supplies conveyed by the cqueduct. s C:olorado Kiver Aqueduct includes water management programs, IID-SL)L: WA transters and canal linings conveyed by the aqueduct.
4 Maximum CRA deliveries limited to 1.25 MAF including IID-SDCWA transfers and canal linings. 5 Firrn derrlarld5 are adjusted to include IID-SDCWA Iransfers and currul lini•rgs. TI ese supplies are calcululed as Iocui supply, but need to be shown for the purposes of CRA. capacity limit cc lculalionswi-hout double counting.

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Section 3
Water Sources and Supply Reliability
Table 3-3: Metropolitan Multiple -Dry Year Projected Supply Capability and Demands for 2015 to 2035
Multiple Dry -Year
Supply Capability' and Projected Demands
Repeat of 1990.1992 Hydrology
(acre-feet per year]
Forecast Year
r2035
Current Programs
In -Region Storage and Programs
California Aqueductz
Colorado River Aqueduct
Colorado River Aqueduct 5upply3
Aqueduct Capacity LirniP
Colorado River Aqueduct Capability
246,000
752,000
1,318,000
1,250,000
1,250,000
373,00-0
794,ON
11600,000
1,250,0G0
1,250,000
435,000
835,000
1,417,000
P,250,000
1,250,000
398,000
811,000
1,416,000
1,250,000
1,250,000
353,000
812,000
1,416,000
1,250,000
1,250,000
Capability of Current Programs
2,248,000
2,417,000
2,520,000
2,459,000
2,416,000
Demands
Firm Demands of Metropolitan
IID-SDCWA Transfers and Canal Linings
2,056,000
180,000
1,947,000
241,000
2,003,000
280,000
2,059,000
280.000
2,1 19,000
280,000
Total Demands on Metropolitans
2,236,000
2,188,000
2,283,000
2,339,000
2,399,000
Surplus
12,000
229,000
237,000
120,000
14,000
Programs Under Development
In -Region Storage and Programs
California Aclueauct
Colorado River Aqueduct
Colorado River Aqueduct Supply3
Aqueduct Capacity Lirnita
Colorado River Aqueduct Capability
162,000
242,000
187,000
0 0
280,000
273,000
187,000
0 fl
314,000
419,000
18TOW
0 0
3361000
419,000
182,000
0 0
336,000
419,000
182,000
0 0
Capability of Proposed Programs
404,000
553,000
733,000
755,000
7555,000
Potential Surplus
416,000
782,000
970,000
875,000
771,000
I Represents Supply Capability for resource programs under listed year type. 2 California Aqueduct includes Central Valley transfers and storage program supplies conveyed by the aqueduct. 3 Colorado River Aqueduct includes water management programs, IID-SDCWA transfers and canal linings conveyed by the aqueduct.
4 Maximum CRA deliveries limited to 1.25 MAFincluding IID-SDCWA transfers and canal linings. s Firm demands are adjusted 10 include IID-SDCWA transfers and canal linings. These supplies are calculated as local supply, but need to be shown for the purposes of CRA capacity limit calculations without double counting.

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Section 3
Water Sources and Supply Reliability

3.2.2. Newport Beach's Imported Water Supply Projections Based on Metropolitan's supply projections that it will be able to meet full service demands under all three hydrologic scenarios, MWDOC, Orange county's wholesale supplier projects that it would also be able to meet the demands of its retail agencies under these conditions.

California Water Code section 10631 (k) requires the wholesale agency to provide information to the urban retail water supplier for inclusion in its UWMP that identifies and quantifies the existing and planned sources of water available from the wholesale agency. Table 3-4 indicates the wholesaler's water availability projections by source for the next 25 years as provided to the City by MWDOC. The water supply projections shown in Table 3-4 represent the amount of supplies projected to meet demands. They do not represent the full supply capacity.

Table 3-4: Wholesaler Identified & Quantified Existing and Planned Sources of Water (AFY)
Wholesaler Sources
Fiscal Year Ending
2015
2020
2025
2030
2035-opt
MWDOC
6,298
6,430
6,564
6,697
6,830

3.3. Groundwater
Local groundwater has been the cheapest and most reliable source of supply for the City.

The City relies on approximately 10,000 acre-feet of groundwater from the Lower Santa Ana River Groundwater Basin (Orange County Basin) each year. This local source of supply meets approximately 60% of the City's total annual demand.

In the effort to maximize local resources, Metropolitan has partnered with OCWD and MWDOC and its member agencies who are groundwater producers in various programs to encourage the development of local resources. Metropolitan's Groundwater Replenishment Program is a program where a groundwater producer may purchase imported water from Metropolitan at a reduced rate when "surplus" water is available in lieu of extracting groundwater. This program indirectly replenishes the basin by avoiding pumping.

This section provides description of the Lower Santa Ana River Groundwater Basin and the management measures taken by OCWD the basin manager to optimize local supply and minimize overdraft. Moreover, this section provides information on historical groundwater production as well as a 25-year projection of the City's groundwater supply.

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Section 3
Water Sources and Supply Reliability

3.3.1. Lower Santa Ana River Groundwater Basin
The Lower Santa Ana Groundwater Basin, also known as the Orange County Groundwater Basin (Basin) underlies the north half of Orange County beneath broad lowlands. The 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 aquifers comprising this Basin extend over 2,000 feet deep and form a complex series of interconnected sand and gravel deposits.

The Orange County Water District (OCWD) was formed in 1933 by a special legislative act of the State of California Legislature to protect and manage the County's vast, natural, underground water supply with the best available technology and to defend its water rights to the Orange County Groundwater Basin. This legislation is found in the State of California Statutes, Water — Uncodified Acts, Act 5683, as amended .6 The Basin is managed by OCWD under the Act, which functions as a statutorily -imposed physical solution. Section 77 of the Act states that, `nothing in this act contained shall be so construed as to affect or impair the vested right of any person, association or corporation to the use of water.

The Basin is managed by OCWD for the benefit of municipal, agricultural and private groundwater producers. The Basin meets approximately 60 to 70 percent of the water supply demand within the boundaries of OCWD. There are 19 major producers including cities, water districts, and private water companies, extracting water from the Basin serving a population of approximately 2.55 million.8
Groundwater levels are managed within a safe basin operating range to protect the long- term sustainability of the basin and to protect against land subsidence. In 2007, OCWD established a new methodology for calculating accumulated overdraft and establishing new full -basin benchmarks.9 Based on OCWD's 2009 Groundwater Management Plan, the optimal accumulated overdraft is between 100,000 and 434,000 AF. At the top of the range, OCWD will be able to provide at least three years of drought supply. An accumulated overdraft condition minimizes the localized high groundwater levels and increases ability to recharge storm events from the Santa Ana River. At an accumulated overdraft of 200,000 AF, the Basin is considered 99.7 percent full. OCWD estimates that Orange County Water District Act, Section 77.
8 MWDOC and Center for Demographics Research (2008)
9 The Report on Evaluation of Orange County Groundwater Basin Storage and Operational Strategy, published in February 2007.

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Section 3
Water Sources and Supply Reliability
the Basin can safely be operated on a short-term emergency basis with a maximum accumulated overdraft of approximately 500,000 AF.

In an effort to eliminate long-term overdraft conditions, OCWD developed a comprehensive computer -based groundwater flow model to study and better understand the Basin's reaction to pumping and recharge. OCWD manages the Basin by establishing on an annual basis the appropriate level of groundwater production known as the Basin Production Percentage (BPP) as described below.

3.3.2. Basin Production Percentage
No pumping right exists for the Orange County Basin. Total pumping from the basin is managed through a process that uses financial incentives to encourage groundwater producers to pump an aggregate amount of water that is sustainable without harming the Basin. The framework for the financial incentives is based on establishing the BPP which is the percentage of each Producer's total water supply that comes from groundwater pumped from the basin. Groundwater production at or below the BPP is assessed the Replenishment Assessment (RA). While there is no legal limit as to how much an agency could pump from the Basin, there is a financial disincentive to pumping above the BPP.

Pumping above the BPP is also assessed a Basin Equity Assessment (BEA), which is calculated so that the cost of groundwater production is equal to MWDOC's melded rate.

The BPP is set uniformly for all Producers by OCWD on an annual basis. The BPP for the 2008-2009 water year (July 1, 2008 to June 30, 2009) was established at 69.0. The overall BPP achieved within OCWD for non -irrigation use in the 2008-09 water year was equal to 72.5 percent. The BPP has recently been set at 62 percent for the 2010-2011 water year. For the purpose of this UWMP, the BPP is assumed to be 62 percent for the entire 25-year planning horizon (Table 3-5).

Table 3-5: Current Basin Production Percentage
Basin Name
Basin Production Percentage
Orange County Groundwater Basin
62%
Total
62%
The BPP is set based on groundwater conditions, availability of imported water supplies, and Basin management objectives. The BPP is also a major factor in determining the cost of groundwater production from the Basin for that year. When Metropolitan has an abundance of water, they may choose to activate their Groundwater Replenishment Program also known as In -Lieu Program, where imported water is purchased in -lieu of pumping groundwater.

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Water Sources and Supply Reliability
In some cases, OCWD encourages the pumping of groundwater that does not meet drinking water standards in order to protect water quality. This is achieved by using a financial incentive called the BEA Exemption. A BEA Exemption is used to encourage pumping of groundwater that does not meet drinking water standards in order to clean up and contain the spread of poor quality water. OCWD uses a partial or total exemption of the BEA to compensate a qualified participating agency or Producer for the costs of treating poor -quality groundwater. When OCWD authorizes a BEA exemption for a project, it is obligated to provide the replenishment water for the production above the BPP and forgoes the BEA revenue that OCWD would otherwise receive from the producer.

3.3.3. Recharge Facilities
Recharging water into the basin through natural and artificial means is essential to support pumping from the basin. Active recharge of groundwater began in 1949, in response to increasing drawdown of the basin and consequently the threat of seawater intrusion. In 1949, OCWD began purchasing imported Colorado River water from Metropolitan, which was delivered to Orange County via the Santa Ana River upstream of Prado Dam. The Basin's primary source of recharge is flow from the Santa Ana River.

OCWD diverts river flows into recharge basins located in and adjacent to the Santa Ana River and its main Orange County tributary, Santiago Creek. Other sources of recharge water include natural infiltration and recycled water. Today OCWD owns and operates a network of recharge facilities that cover 1,067 acres. The recharge capacity has exceeded 10,000 AFY with the addition of the La Jolla Recharge Basin which came online in 2008.

The La Jolla Recharge Basin is a 6-acre recharge basin.

One of OCWD's primary efforts has been the control of seawater intrusion into the Basin, especially via the Talbert and Alamitos seawater intrusion barriers. OCWD began addressing the Alamitos Gap intrusion by entering a partnership in 1965 with the Los Angeles County Flood Control District to operate injection wells in the Alamitos Gap.

Operation of the injection wells forms a hydraulic barrier to seawater intrusion. To address seawater intrusion in the Talbert Gap, OCWD constructed Water Factory 21, a plant that treated secondary -treated water from the Orange County Sanitation District (OCSD) to produce purified water for injection. Water Factory 21 operated for approximately 30 years until it was taken off line in 2004. It was replaced by an advanced water treatment system, the Groundwater Replenishment System (GWRS).

The GWRS is a cooperative project between OCWD and OCSD that began operating in 2008. Secondary -treated wastewater from OCSD undergoes treatment consisting of microfiltration, reverse osmosis, and advanced oxidation with ultraviolet light and hydrogen peroxide. It is the largest water purification project of its kind, Phase 1 of the GWRS began operating in 2008 with a capacity of purifying 72,000 AFY of water. The GWRS provides recharge water for the Talbert Injection Barrier as well as to recharge City of Newport Beach
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Section 3
Water Sources and Supply Reliability
basins in the City of Anaheim. The Expanded Talbert Injection Barrier included 8 new injection wells which operation began in 2008. The GWRS increased reliable, local water supplies available for barrier injection from 5 MGD to 30 MGD.

3.3.4. Metropolitan Groundwater Replenishment Program
OCWD, MWDOC, and Metropolitan have developed a successful and efficient groundwater replenishment program to increase storage in the Orange County Groundwater Basin. The Groundwater Replenishment Program allows Metropolitan to sell groundwater replenishment water to OCWD and make direct deliveries to agency distribution systems in lieu of producing water from the groundwater basin when surplus water is available. This program indirectly replenishes the basin by avoiding pumping. In the in -lieu program, OCWD requests an agency to halt pumping from specified wells.

The agency then takes replacement water through its import connections, which is purchased by OCWD from Metropolitan (through MWDOC). OCWD purchases the water at a reduced rate, and then bills the agency for the amount it would have had to pay for energy and the Replenishment Assessment (RA) if it had produced the water from its wells. The deferred local production results in water being left in local storage for future use. In 2008 and 2009, OCWD did not utilize replenishment water because such water was not available to purchase from Metropolitan.

3.3.5. Metropolitan Conjunctive Use Program
Since 2004, OCWD, MWDOC, and participating producers have participated in Metropolitan's Conjunctive Use Program (known as the Metropolitan Long -Term Groundwater Storage Program). This program allows for the storage of Metropolitan water in the Orange County groundwater basin. The existing Metropolitan storage program provides for Metropolitan to store 66,000 AF of water in the basin in exchange for Metropolitan's contribution to improvements in basin management facilities. These improvements include eight new groundwater production wells, improvements to the seawater intrusion barrier, construction of the Diemer Bypass Pipeline. This water can be withdrawn over a three-year time period.. The preferred means to store water in the Metropolitan storage account has been through the in -lieu deliveries to participating groundwater producers.

3.3.6. Historical Groundwater Production
Since its founding, OCWD has grown in size from 162,676 to 229,000 acres.

Groundwater pumping from the basin has grown from approximately 150,000 AFY in the City of Newport Beach
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Section 3
Water Sources and Supply Reliability
mid- 1950s to over 300,000 AFY. During the water year July 2008 to June 2009, total basin production for all agencies was approximately 324,147 acre-feet (AF.).10 The City obtains groundwater pumped from four wells owned and operated by the City and managed by OCWD. The City's wells are located in the City of Fountain Valley, approximately five miles north of the City. The only constraints affecting groundwater supply to the City are the pumping capacity of the wells and pumping limitations (BPP) established by OCWD to maintain the groundwater basin.

Table 3-6 shows the City's recent groundwater production from the Basin in the past five years from 2005 to 2009. During certain seasons of 2005, 2006, and 2007, OCWD has operated the In -lieu Program with Metropolitan by purchasing water from Metropolitan to meet demands of member agencies rather than pumping water from the groundwater basin. In 2008 and 2009, OCWD did not utilize in -lieu water because such water was not available to purchase from Metropolitan. l i
Table 3-6: Amount of Groundwater Pumped in the Past 5 Years (AFY) UBasin Name(s) Fiscal Year Ending IN
2005 2006 2007 2008 2009
BPP GW 4,984
3,546
3,605
14,338
11,309
Plus In -Lieu taken for OCWD 6,652
7,682
8,553
-
-
Subtotal OCWD Basin GW 11,636
11,228
12,158
14,338
11,309
of Total Water Supply 65%
63%
64%
78%
65%

3.3.7. Projections of Groundwater Production
The mission of the OCWD is to provide local water retailers with a reliable, adequate, high quality water supply at the lowest reasonable cost in an environmentally responsible manner. Efforts have been made to develop and secure new supplies. Also in December 2008, OCWD secured the rights to divert and use up to 362,000 AFY of Santa Ana River water through a decision of the State Water Resources Control Board. Description to other recent OCWD projects can be found in OCWD's 2009 GWMP.

Based on the annual MWDOC survey completed by each Producer in the spring of 2008, the estimated demand for groundwater in the OCWD boundary will increase from 519,000 AFY in 2015 to 558,000 AFY in 2035 representing a 7.5 percent increase over a 20 year period. OCWD's estimated total annual groundwater production for the water 10 2008-2009 Engineer's Report on Groundwater conditions, Water Supply and Basin Utilization in the Orange County Water District, February 2010
11 2008-2009 Engineer's Report on Groundwater conditions, Water Supply and Basin Utilization in the Orange County Water District, February 2010
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Water Sources and Supply Reliability
year 2010-2011 is 295,000 AF based on a BPP of 62 percent and includes 22,000 AF of production from water quality improvement projects.

Table 3-7 shows the amount of groundwater projected to be pumped from the Basin in the next 25 years. The BPP is assumed to remain at 62 percent for the entire planning horizon.

Table 3-7: Amount of Groundwater Projected to be Pumped (AFY) Basin Name(s)
Fiscal Year Ending
2010
2015
2020
2025
2030
2035-opt
BPP GW
10,052
10,275
10,492
10,710
10,927
11,144
of Total Water Supply
62%
62%
62%
62%
62%
62%

3.4. Recycled Water
The City participates in a reclaimed/recycled water program and uses the water supplies available to water greenbelts, parkways, golf courses, and other landscape areas that may otherwise use valuable potable water for irrigation. This reclaimed/recycled water is wholesaled by OCWD through its Green Acres Project (GAP). In 2009/10, usage of recycled water within the City's Water Utility service area was about 400 acre feet.

Recycled water usage meets approximately 3% of the City's water demand. The City's recycled water program is more fully described in Section 6.

3.5. Supply Reliability

3.5.1. Overview
It is required that every urban water supplier assess the reliability to provide water service to its customers under normal, dry, and multiple dry water years. The City depends on a combination of imported and local supplies to meet its water demands and has taken numerous steps to insure it has adequate supplies. Development of groundwater, recycled water system, and desalination opportunities augments the reliability of the imported water system. There are various factors that may impact reliability of supplies such as legal, environmental, water quality and climatic which are discussed below. The water supplies are projected to meet full -service demands; Metropolitan's 2010 RUWMP finds that Metropolitan is able to meet with existing supplies, full -service demands of its member agencies starting 2015 through 2035 during normal years, single dry year, and multiple dry years.

Metropolitan's 2010 Integrated Water Resources Plan (IRP) update describes the core water resource strategy that will be used to meet full -service demands at the retail level under all foreseeable hydrologic conditions from 2015 through 2035. The foundation of City of Newport Beach
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Water Sources and Supply Reliability
Metropolitan's resource strategy for achieving regional water supply reliability has been to develop and implement water resources programs and activities through its IRP preferred resource mix. This preferred resource mix includes conservation, local resources such as water recycling and groundwater recovery, Colorado River supplies and transfers, SWP supplies and transfers, in -region surface reservoir storage, in -region groundwater storage, out -of -region banking, treatment, conveyance and infrastructure improvements. MWDOC is reliant on Metropolitan for all of its imported water. With the addition of planned supplies under development, Metropolitan's 2010 RUWMP finds that Metropolitan will be able to meet full -service demands from 2015 through 2035, even under a repeat of the worst drought. Table 3-8 shows the reliability of the wholesaler's supply for single dry year and multiple dry year scenarios.

Table 3-8: Wholesaler Supply Reliability - % of Normal AFY Multiple Dry Water Years
Single
Wholesaler Sources
Year 1
Year 2
Year 3
Y
MWDOC
100%
100%
100%
100%
In addition to meeting full -service demands from 2015 through 2035, Metropolitan projects reserve and replenishment supplies to refill system storage. MWDOC's 2010 RUWMP states that it will meet full -service demands to its customers from 2015 through 2035. Table 3-9 shows the basis of water year data used to predict drought supply availability.

Table 3-9: Basis of Water Year Data
Water Year Type
Base Year
Base Year
Base Year
Normal Water Year
Average 1922-2004
Single -Dry Water Year
1977
Multiple -Dry Water Years
1990
1991
1992

3.5.2. Factors Impacting Reliability
The Act requires a description of the reliability of the water supply and vulnerability to seasonal or climatic shortage. The City relies on import supplies provided by Metropolitan through MWDOC. The following are some of the factors identified by Metropolitan that may have an impact on the reliability of Metropolitan supplies.

Environment — Endangered species protection needs in the Sacramento -San Joaquin River Delta have resulted in operational constraints to the SWP system. The Bay-Delta's declining ecosystem caused by agricultural runoff, operation of water pumps and other factors has led to historical restrictions in SWP supply deliveries. SWP delivery City of Newport Beach
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Water Sources and Supply Reliability
restrictions due to the biological opinions resulted in the loss of about one-third of the available SWP supplies in 2008.

Legal — Listings of additional species under the Endangered Species Act and new regulatory requirements could impact SWP operations by requiring additional export reductions, releases of additional water from storage or other operational changes impacting water supply operations. Additionally, the Quantification Settlement Agreement has been challenged in courts and may have impacts on the Imperial Irrigation District and San Diego County Water Authority transfer. If there are negative impacts, San Diego could become more dependent on the Metropolitan supplies.

Water Quality —Water imported from the Colorado River Aqueduct (CRA) contains high level of salts. The operational constraint is that this water needs to be blended with SWP supplies to meet the target salinity of 500 mg/L of total dissolved solids (TDS). Another water quality concern is related to quagga mussel. Controlling the spread and impacts of quagga mussels within the Colorado River Aqueduct require extensive maintenance and results in reduced operational flexibility.

Climate Change — Changing climate patterns are expected to shift precipitation patterns and affect water supply. Unpredictable weather patterns will make water supply planning even more challenging. The areas of concern for California include the reduction in Sierra Nevada snowpack, increased intensity and frequency of extreme weather events, and rising sea levels causing increased risk of levee failure.

Legal, environmental, and water quality issues may have impacts on Metropolitan supplies. It is felt however climatic factors would have more of an impact than the others.

Climatic conditions have been projected based on historical patterns; however severe pattern changes may occur in the future. Table 3-10 shows the factors resulting in inconsistency of supply.

Table 3-10: Factors Resulting in Inconsistency of Supply Name of Supply
Legal
Environmental
Water Quality
Climatic
State Water Project
X
X
Colorado River
X
X
These and other factors are addressed in greater detail in Metropolitan's 2010 RUWMP.

3.5.2.1. Water Quality
Imported Water - Metropolitan is responsible for providing water of a high quality throughout its service area. The water that Metropolitan delivers is tested both for City of Newport Beach
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Water Sources and Supply Reliability
currently regulated contaminants and for additional contaminants of concern as over 300,000 water quality tests are conducted each year to regulate the safety of its waters.

Metropolitan's supplies originate primarily from the Colorado River Aqueduct (CRA) and from the State Water Project (SWP). A blend of these two sources, proportional to each year's availability of the source, is then delivered throughout Metropolitan's service area.

Metropolitan's primary sources face individual water quality issues of concern. The CRA water source contains a higher level of total dissolved solids (TDS) and a lower level of organic material while the SWP contains a lower TDS level while its level or organic materials is much higher, lending to the formation of disinfection byproducts. To remediate the CRA's high level of salinity and the SWP's high level of organic materials, Metropolitan has been blending CRA water with SWP supplies as well as implementing updated treatment processes to decrease the disinfection byproducts. In addition, Metropolitan has been engaged in efforts to protect its Colorado River supplies from threats of uranium, perchlorate, and chromium VI while also investigating the potential water quality impact of emerging contaminants, N-nitrosodimethylamine (NDMA) and pharmaceuticals and personal care products (PPCPs). Metropolitan has assured its ability to overcome the above mentioned water quality concerns through its protection of source waters, implementation of renovated treatment processes, and blending of its two sources.

While unforeseeable water quality issues could alter reliability, Metropolitan's current strategies ensure the deliverability of high quality water.

Groundwater - The Orange County Water District (OCWD) is responsible for managing the Orange County Groundwater Basin. To maintain groundwater quality, OCWD conducts an extensive monitoring program that serves to manage the basin's groundwater production, control groundwater contamination, and comply with all necessary laws and regulations.12 A network of nearly 700 wells provides OCWD a source for samples, which are tested for a variety of purposes. The District collects 600 to 1,700 samples each month to monitor the quality of the basin's water. These samples are collected and tested according to approved federal and state procedures as well as industry -recognized quality assurance and control protocols.

OCWD recognizes the importance of maintaining the basin's high water quality.

OCWD's 2009 Groundwater Management Plan Update includes a section labeled, "Water Quality Management," which discusses the water quality concerns as well as management programs that OCWD is currently involved with. 12 The information in this section is referenced from the Groundwater Management Plan 2009 Update "Groundwater Monitoring" section (pages 3-1 through 3-20) and "Water Quality Management" section (pages 5-1 through 5-30).

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Water Sources and Supply Reliability
Table 3-11 shows the amount in acre-feet per year that water quality would have on supply.

Table 3-11: Water Quality — Current and Projected Water Supply Impacts (AFY) Water Source
Fiscal Year Ending
2010
2015
2020
2025
2030
2035-opt
Imported
0 0
0 0
0 0
Local
0 0
0 0
0 0

3.5.3. Normal -Year Reliability Comparison
The City has entitlements and/or written contracts to receive imported water from Metropolitan via the regional distribution system. Although pipeline capacity rights do not guarantee the availability of water, per se, they do guarantee the ability to convey water when it is available to the Metropolitan distribution system. All imported water supplies assumed in this section are available to the City from existing water transmission facilities. Table 3-12 shows supply and demand under normal year conditions. Water supplies are projected to be available from Metropolitan; however, it is not included here since projected supplies meet projected demands.

Table 3-12: Projected Normal Water Supply and Demand (AFY) 7T131313
Fiscal Year Ending
2015
2020
2025
2030
2035
Total Demand
17,023
17,422
17,774
18,124
18,474
GW
10,275
10,492
10,710
10,927
11,144
Recycled Water
450
500
500
500
500
FImported
6,298
6,430
6,564
6,697
6,830
__��Total Supply
17,023
17,422
17,774
18,124
18,474

3.5.4. Single Dry -year Reliability Comparison
The City has documented that it is 100% reliable for single dry year demands from 2015 through 2035 with a demand increase of 4.6% using FY 2006-07 as the single dry year.

Table 3-13 compiles supply and demand projections for a single dry water year. The available imported supply is greater than shown; however, it is not included because all demands are met.

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Table 3-13: Projected Single -Dry Year Water Supply and Demand (AFY) Fiscal Year Ending
2015
2020
_MO2030
Total Demand
17,806
18,223
18,592
18,958
19,324
BPP GW
10,275
10,492
10,710
10,927
11,144
Recycled Water
450
500
500
500
500
Imported
7,081
7,232
7,382
7,531
7,680
Total Supply
17,806
18,223
18,592
18,958
19,324

3.5.5. Multiple Dry -Year Reliability Comparison
The City is capable of providing their customers all their demands with significant reserves in multiple dry years from 2015 through 2035 with a demand increase of 4.6% using FY 2006-07 as the multiple dry years. This is true even if the demand projections were to be increased by a large margin. Table 3-14 shows supply and demand projections under multiple dry year conditions.

Table 3-14: Projected Multiple Dry Year Period Supply and Demand (AFY) Fiscal Year Ending
2015
2020
2025
2030
2035
Total Demand
17,806
18,223
18,592
18,958
19,324
BPP GW
10,275
10,492
10,710
10,927
11,144
First Year
Supply
Recycled Water
450
500
500
500
500
Imported
7,081
7,232
7,382
7,531
7,680
Total Supply
17,806
18,223
18,592
18,958
19,324
Total Demand
17,806
18,223
18,592
18,958
19,324
BPP GW
10,275
10,492
10,710
10,927
11,144
Second Year
Supply
Recycled Water
450
500
500
500
500
Imported
7,081
7,232
7,382
7,531
7,680
Total Supply
17,806
18,223
18,592
18,958
19,324
Total Demand
17,806
18,223
18,592
18,958
19,324
BPP GW
10,275
10,492
10,710
10,927
11,144
Third Year
Supply
Recycled Water
450
500
500
500
500
Imported
7,081
7,232
7,382
7,531
7,680
Total Supply
17,806
18,223
18,592
18,958
19,324
City of Newport Beach
2010 Urban Water Management Plan 3-19

4. Demand Management Measures

4.1. Overview
Water conservation, often called demand -side management, can be defined as practices, techniques, and technologies that improve the efficiency of water use. Such practices are referred to as demand management measures (DMM). Increased efficiency expands the use of the water resource, freeing up water supplies for other uses, such as population growth, new industry, and environmental conservation.

The increasing efforts in water conservation are spurred by a number of factors: growing competition for limited supplies, increasing costs and difficulties in developing new supplies, optimization of existing facilities, delay of capital investments in capacity expansion, and growing public support for the conservation of limited natural resources and adequate water supplies to preserve environmental integrity.

The City recognizes the importance of water conservation and has made water use efficiency an integral part of water use planning. The City has been a signatory to the California Urban Water Conservation Council's (CUWCC) Best Management Practices (BMPs) Memorandum of Understanding (MOU) since August 2005. The City completed and submitted its first BMP Activity Report in fiscal year 2006 showing implementation status of each BMP. This section of the UWMP describes the DMMs currently being implemented or scheduled for implementation by the City to satisfy the requirements of § 10631 (f) & 0).

Demand Management Measures as defined by the Act corresponds to the CUWCC's BMPs. The Act allows the urban water supplier who is signatory to the CUWCC MOU to submit to DWR copies of its annual reports and other relevant documents to assist DWR in determining whether the urban water supplier is implementing or scheduling the implementation of water demand management activities.

4.2. Water Use Efficiency Programs
As Signatory to the Urban MOU, the City has committed to use good -faith efforts to implement the 14 cost-effective BMPs. The City has implemented and is actively participating in many water conservation activities. A Water Conservation Ordinance was adopted by the City Council in 2009 in the City's municipal code as Chapter 14.16 Water Conservation and Supply Level Regulations.

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Moreover, as a member agency of MWDOC, the City actively participates in various Metropolitan residential and CII rebate programs, as well as school and public education and outreach programs, and other programs administered by MWDOC. MWDOC implements many of the urban water conservation BMPs on behalf of its member agencies. MWDOC's 2010 RUWMP should be referred to for a detailed discussion of each regional BMP program. The City works cooperatively with MWDOC for technical and financial support needed to facilitate meeting the terms of the MOU. MWDOC's current Water Use Efficiency Program, detailed in their 2010 RUWMP, implemented on behalf of its member agencies following three basic focuses:

1. Regional Program Development — MWDOC develops, obtains funding for, and implements regional BMP programs on behalf of all retail water agencies in Orange County.

2. Local Program Assistance - MWDOC assists retail agencies to develop and implement local programs within their individual service areas.

3. Research and Evaluation — MWDOC conducts research programs which allow an agency to measure the water savings benefits of a specific program and then compare those benefits to the costs of implementing the program in order to evaluate the economic feasibility of the program.

Table 4-1 provides an overview of City's DMM program status.

Table 4-1: Urban Supplier's Demand Management Measures Overview Demand Management Measure (DMM)
DMM Status
Past
Current
Future
Residential Water Surveys
Residential Plumbing Retrofits
System Water Audits, Leak Detection and Repair
Metering with Commodity Rates
Large Landscape Conservation Programs
High -Efficiency Washing Machine Rebates
Public Information Programs
School Education Programs
Commercial, Industrial and Institutional Programs
Wholesale Agency Assistance
Conservation Pricing
Conservation Coordinator
Water Waste Prohibition
Residential ULFT Replacement Programs
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4.2.1. DMM 1: Water Survey Programs for Single -Family Residential and Multi -Family Residential Customers
As part of this DMM, an agency targets single- and multi -family homes and sends out a qualified surveyor who checks water using devices within the house and evaluates landscapes and irrigation systems. MWDOC had a formal program that ended in FY 2001/02. Currently, the City has a program to monitor high water users through the billing system. City staff goes out to the high use customer's home to evaluate their indoor use and identify problems and fixes (e.g. leaky toilets). The City also participates in a regional landscape programs through MWDOC as explained below.

In FY 2004/05, the City, along with MWDOC, participated in a regional program called the SmarTimer Rebate Program. Under this program, residential and small commercial properties are eligible for a rebate when they purchase and install a new, state-of-the-art, weather -based irrigation controller which can save 41 gallons per day per residence and can reduce runoff and pollution by 49 percent. The City is eligible to receive 1,192 valves over the life of the program. To date, 278 rebates have been given out to residential customers and 249 rebates to small commercial customers which translate to a water savings of approximately 636 acre-feet. The City will continue to provide on -site meetings, literature and incentives related to this program. As part of the MWDOC Grant for the SmarTimers a site audit and inspection is required and provided by contract through MWDOC.

In FY 2007/08 the City with the assistance of a Cal Fed grant installed 640 weather -based irrigation controllers with pre and post installation inspections. This program found that the first 100 homes retrofit with smart controllers saved 458,000 gallons in the first comparison billing period. One homeowners association (HOA), who first retrofit with smart controllers and them retrofit for irrigation system uniformity, saved 1.3 million gallons in the first comparison billing period.

Moreover, the City is in the process of contracting for a professional/consultant that can assist the City in developing a residential and commercial site auditing program.

Presently the City pays a contractor for audits as needed. Once the City has developed a program it is the desire of the City to hire a full or part-time professional staff person to do audits for residential and commercial properties as well as site measurements for public properties.

4.2.2. DMM 2: Residential Plumbing Retrofit
Between 1994 and 2009, the City, in conjunction with MWDOC, distributed a total of 7,219 ultra low flush toilets (ULFT) to single-family and multi -family homes. In addition, through Metropolitan's mass showerhead distribution, the City installed 4,453 low -flow showerheads between 1991 and 1998, and over 75 percent of the City's single - and multi -family homes constructed prior to 1992 are fitted with low -flow showerheads.

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MWDOC estimated that today low flow showerhead saturation is at nearly 100% for single-family homes and at 94% for multi -family homes. Both the low -flow shower head program and ULFT rebate program have sunset. The City has met the requirement for this DMM.

4.2.3. DMM 3: System Water Audits, Leak Detection and Repair The City records daily production and demand data and reads all meters on a bi-monthly basis. All metered sales and other verifiable uses such as backwash, flushwater, and operation and maintenance, are recorded. The unaccounted water loss varies year to year but is approximately five percent of the total water in the system. The City is meeting the requirement for this DMM.

4.2.4. DMM 4: Metering with Commodity Rates
All of the City's water connections are metered and billed based on commodity rates.

4.2.5. DMM 5: Large Landscape Conservation Programs and Incentives The City supports large landscape conservation through MWDOC's regional programs including the Landscape Performance Certification Program and the Smart Timer Rebate Program. The City encourages commercial properties such as golf courses and HOAs to take advantage of these programs. The City continued participation in MWDOC's landscape rebate programs resulted in the installation of 9,428 sq. ft. of synthetic turf (4.3 acre-feet), 5,520 rotating nozzles (51 acre-feet savings), and 278 smart timers for residential customers and 249 smart timers for commercial customers (636 acre-feet).

Details of each landscape program are provided below.

MWDOC Landscape Performance Certification Program
MWDOC has a program titled "Landscape Performance Certification Program", which provides a water -based budget for dedicated meters. This program involves developing water budgets based off of agency -provided consumption data, site -provided area measurement, local weather data, and contact information for the site owner, the responsible landscape company, and a property manager. On a monthly basis, the site's water budget is developed by water meter and provided back to the three involved entities in an e-mail report card format. Also included is a website where all involved can view their site for budget numbers, which illustrate whether a meter is over, under, or exactly at their budget. Included is a calculation based on individual water rates showing dollars lost. This program does not include a formal landscape survey component. Financial incentives are offered to improve landscape water use efficiency, and regional funding is available from Metropolitan.

The City has participated in the Landscape Performance Certification Program since its initiation in FY 2004-05. The number of participated landscape meters has increased City of Newport Beach
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Demand Management Measures
from 32 in FY 2004-05 to 171 in FY 2010-11. Through the SmarTimer Grant the City is requiring all Commercial applicants to participate in this program as a condition of funding by the City.

Smart Timer Rebate Program
As described under DMM 1, the Smart Timer Rebate Program offers residential and small commercial properties a rebate when they purchase and install a new, state-of-the- art, weather -based irrigation controller which can save 41 gallons per day per residence and can reduce runoff and pollution by 49 percent. The City is eligible to receive 1,192 valves over the life of the program. In FY 2004/05, three residential and seventeen small commercial customers participated. As of FY 2010-11 the total program participation has increased to 278 residential and 249 commercial customers.

4.2.6. DMM 6: High -Efficiency Washing Machine Rebate Programs Orange County residents are eligible to receive an $85 rebate when they purchase of a new High Efficiency Clothes Washer (HECW). This program began in 2001 and is sponsored by MWDOC, Metropolitan, and local retail water agencies. Rebates are available on a first -come, first -served basis, while funds last. Participants must be willing to allow an inspection of the installed machine for verification of program compliance.

Machines must have a water factor of 4.0 or less. Depending on use, these machines can save 10,000 gallons of water per year Participants are encouraged to contact their local gas and/or electric utility as additional rebates may be available.

Over the past 9 years, 1,918 residences have installed HECWs through this program representing a water savings of approximately 240 acre-feet. The City continues to provide information to residences about these rebate programs.

4.2.7. DMM 7: Public Information Programs
The City has an active program to promote and educate its customers about water conservation and other water -related topics. The City participates annually in the Children's Water Education Festival sponsored by OCWD, The Disneyland Resort and various cities and agencies throughout Orange County. Moreover, when requested, the Water Conservation Coordinator goes into the classrooms, interest groups, and homeowner associations to discuss various aspects of conservation. The City has also updated its website to include conservation related materials and information.

The City has taken the lead to educating its residents on the importance of using water wisely and caring for their watershed. The City currently provides customers with various tools, programs and incentives that are promoted through outreach marketing campaigns to reach as diverse an audience as possible. The City's Water Conservation Marketing Campaigns comprises of many programs as described below.

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July: Smart Irrigation Month — June 2008, City Council adopted a resolution declaring July as "Smart Irrigation Month" to promote a reminder for residents to repair faulty irrigation systems and install ETo controllers using Metropolitan's region -wide TV, radio and print advertising campaign.

WaterSmartNewport.org — This website is the City's water conservation campaign with the goal to create a recognizable brand specific to the City.

Interest Group and Public Events — The City uses public events and relationships with nonprofit groups to promote public awareness. City staff presents at clubs and HOA such Kiwanis and Rotary and participate in environmental related events alongside interest groups and nonprofits.

Media Outreach: Public Service Announcements (PSAs), NBTV and Magazine Print Articles — The City reaches a broad age demographic through TV and magazine articles.

In 2010, PSAs are featured on NBTV, City website, cable TV, pre -movie display in all City movie theaters, and through other media outlets.

4.2.8. DMM 8: School Education Programs
Since 1975, MWDOC has offered water education programs to Orange County public and private schools for all grade levels from kindergarten through high school. The City participates in this program, and during FY 2009/10, MWDOC and the City's Water Conservation coordinator made 6 presentations to 1,687 students.

4.2.9. DMM 9: Conservation Programs for Commercial, Industrial and Institutional Accounts
Save Water, Save a Buck
This program began in 2002 and offers rebates to assist commercial, industrial, and institutional customers in replacing high -flow plumbing fixtures with low -flow fixtures.

Facilities where low -flow devices are installed must be located in Orange County.

Rebates are available only on those devices listed in Table 4-2 below and must replace higher water use devices. Installation of devices is the responsibility of each participant.

Participants may purchase and install as many of the water saving devices as is applicable to their site.

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Table 4-2: Retrofit Devices and Rebate Amounts Available Under Save Water Save a Buck Program
Retrofit Device I Rebate Amount
High Efficiency Toilet $50
Ultra -Low -Water or Zero Water Urinal
$200
Connectionless Food Steamers
$485 per compartment
Air -Cooled Ice Machines (Tier III)
$300
Cooling Tower Conductivity Controller
$625
pH / Conductivity Controller
$1,750
Dry Vacuum Pumps
$125 per HP
Water Pressurized Broom
$110
As of FY 2010/11 the City's commercial, industrial, and institutional customers have installed a total 1,231 water -saving fixtures since the program inception in FY 2001/02.

This represents a water savings of 540 acre-feet. The City will continue to educate this account category to meet the DMM requirements. The City is also working with the Orange County Sanitation District to target CII customers in the City who could benefit from the reduction or recycling are large water using devices that Metropolitan will help fund to upgrade.

Water Smart Hotel Program
In 2008 and 2009, MWDOC received grants from the CA Department of Water Resources and the US Bureau of Reclamation (USBR) to conduct the Water Smart Hotel Program, a program designed to provide Orange County hotels and motels with commercial and landscape water saving surveys, incentives for retrofits and customer follow-up and support. The goal of the program is to implement water use efficiency changes in hotels to achieve an anticipated water savings of 7,078 acre feet over 10 years.

The Program is offered to hotels in MWDOC's service area as identified by retail water agencies. It is anticipated that detailed survey of the indoor and outdoor water using aspects of up to 105 participating hotels will be performed. Participating hotels will receive survey reports that recommend indoor and outdoor retrofits, upgrades, and other changes that should, based on the survey, result in significant water savings. Quantities of each device and associated fixture and installation costs, water savings and payback information (based on rebate amount Incentives offered through the Save Water Save A Buck Rebate Program will be augmented using DWR and USBR Water Use Efficiency City of Newport Beach
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grant funds to bridge the gap between existing incentives and the actual costs of Hotel Water Survey recommendations. To date, over 24 surveys have been performed county- wide, and over 9,500 water -saving devices have been installed through the program.

These devices are saving 351 acre feet per year or 3,510 acre feet over the ten year device life

4.2.10. DMM 10: Wholesale Agency Programs
The City is not a wholesale agency, so this DMM does not apply.

4.2.11. DMM 11: Conservation Pricing
The City currently has uniform pricing for all water. The City is currently investigating the various tiered rate pricing schemes so it can report to the Council on the efficiency and staffing requirements to convert the current billing system to one that includes tiered pricing.

4.2.12. DMM 12: Water Conservation Coordinator
The City has a designated water conservation coordinator, Shane Burckle, and thus meets this DMM.

4.2.13. DMM 13: Water Waste Prohibition
Most recently, the City Council has approved NBMC 14.16 Water Conservation and Supply Level Regulations which establishes permanent water conservation requirements intended to alter behavior related to water use efficiency for non -shortage conditions and further establishes four levels of water supply shortage response actions to be implemented during times of declared water shortage. Details of this water ordinance are provided in Section 5 of this UWMP.

4.2.14. DMM 14: Residential Ultra -Low -Flush Toilet Replacement Programs Over the past 19 years, MWDOC has continuously implemented a regional ULF Toilet Rebate and/or Distribution Program targeting single- and multi -family homes in Orange County. Since the end of distribution program in 2004, MWDOC's program has focused solely on providing rebate incentives for retrofitting non -efficient devices with either ULFTs or High Efficiency Toilets (HETS) — toilets using 1.28 gallons per flush or less.

The ULFT portion of this program concluded in June 2009, and over 360,000 ULFTs were replaced in single family and multi -family homes, with an overall program to date savings of approximately 138,457 acre feet of water. The HET rebate program, which concluded in 2010, has incentivized over 26,000 devices, with an overall program to date savings of approximately 3,419.

The City has participated in this program from the beginning. To date 7,219 ULFTs and 254 HETs have been installed representing a combined water savings of 2,719 acre-feet.

The City meets the coverage requirements for this DMM.

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Demand Management Measures
City of Newport Beach
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5. Water Supplies Contingency Plan
Recent water supply challenges throughout the American Southwest and the State of California have resulted in the development of a number of policy actions that water agencies would implement in the event of a water shortage. In southern California, the development of such policies has occurred at both the wholesale and retail level. This section describes how new and existing policies that Metropolitan, MWDOC and the City have in place to respond to water supply shortages, including a catastrophic interruption and up to a 50 percent reduction in water supply.

5.1. Shortage Actions
Metropolitan
As an importer of water from multiple sources, including both the Colorado River and Sierra Nevada, a number of water supply challenges have impacted the reliability of Metropolitan's imported supplies. In response to these challenges, Metropolitan has implemented existing policies as well as developed new ones.

The first action that Metropolitan implements in the event of a water shortage is the suspension and/or reduction of its interruptible supplies, which are supplies sold at a discount in return for the buyers agreeing to be the first to be cutback in the event of a shortage. Metropolitan currently has two interruptible programs for agricultural users and groundwater replenishment, under which supplies were either suspended or reduced in 2007.

In addition, in preparation for the possibility of being unable to the meet "firm demands" (non -interruptible supplies) of its member agencies, in February 2008, the Metropolitan's Board of Directors (Board) adopted the Water Supply Allocation Plan (WSAP), which was subsequently updated in June 2009.

Metropolitan's plan includes the specific formula for calculating member agency supply allocations and the key implementation elements needed for administering an allocation.

Metropolitan's WSAP is the foundation for the urban water shortage contingency analysis required under Water Code Section 10632 and is part of Metropolitan's 2010 RUWMP.

Metropolitan's WSAP was developed in consideration of the principles and guidelines described in Metropolitan's 1999 Water Surplus and Drought Management Plan (WSDM), with the objective of creating an equitable needs -based allocation. The plan's City of Newport Beach
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formula seeks to balance the impacts of a shortage at the retail level while maintaining equity on the wholesale level for shortages of Metropolitan supplies of up to 50 percent.

The formula takes into account: impact on retail customers and the economy; growth and population; changes in supply conditions; investments in local resources; demand hardening aspects of non -potable recycled water use; implementation of conservation savings program; participation in Metropolitan's interruptible programs; and investments in facilities.

The formula is calculated in three steps: based period calculations, allocation year calculations, and supply allocation calculations. The first two steps involve standard computations, while the third section contains specific methodology developed for the WSAP.

Step 1: Base Period Calculations — The first step in calculating a water supply allocation is to estimate water supply and demand using a historical based period with established water supply and delivery data. The base period for each of the different categories of demand and supply is calculated using data from the three most recent non -shortage years, 2004-2006.

Step 2: Allocation Year Calculations — The next step in calculating the water supply allocation is estimating water needs in the allocation year. This is done by adjusting the base period estimates of retail demand for population or economic growth and changes in local supplies.

Step 3: Supply Allocation Calculations — The final step is calculating the water supply allocation for each member agency based on the allocation year water needs identified in Step 2. Each element and its application in the allocation formula are discussed in detail in Metropolitan's WSAP.

In order to implement the WSAP, the Metropolitan Board makes a determination on the level of the regional shortage, based on specific criteria, in April each year. If it is determined allocations are necessary, they go into effect in July for that year and remain for a 12-month period, although the schedule is at the discretion of Metropolitan's Board.

Metropolitan's 2010 RUWMP forecasts that Metropolitan will be able to meet projected firm demands throughout the forecast period from 2015 to 2035. However, these projections do not mean that Metropolitan would not implement its WSAP during this period.

MWDOC
To prepare for the potential allocation of imported water supplies from Metropolitan, MWDOC worked collaboratively with its 28 member agencies to develop its own Water City of Newport Beach
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Supply Allocation Plan (MWDOC WSAP), adopted January 2009, to allocate imported water supplies at the retail level. The MWDOC WSAP lays out the essential components of how MWDOC will determine and implement each member agency's allocation during a time of shortage.

The MWDOC WSAP uses a similar method and approach, when reasonable, as that of the Metropolitan's WSAP. However, MWDOC's plan remains flexible to use an alternative approach when Metropolitan's method produces a significant unintended result for the member agencies. The MWDOC WSAP model follows five (5) basic steps to determine a retail agency's imported supply allocation.

Step 1: Determine Baseline Information — The first step in calculating a water supply allocation is to estimate water supply and demand using a historical based period with established water supply and delivery data. The base period for each of the different categories of demand and supply is calculated using data from the last three non -shortage years — calendar years, 2004, 2005, and 2006.

Step 2: Establish Allocation Year Information — In this step, the model adjusts for each member agency's water need in the allocation year. This is done by adjusting the base period estimates for increased retail water demand based on growth and changes in local supplies.

Step 3: Calculate Initial Minimum Allocation Based on Metropolitan's Declared Shortage Level — This step sets the initial water supply allocation for each member agency. After a regional shortage level is established, MWDOC will calculate the initial allocation as a percentage of adjusted Base Period Imported water needs within the model for each member agency.

Step 4: Apply Allocation Adjustments and Credits in the Areas of Retail Impacts, Conservation, and the Interim Agriculture Water Program — In this step, the model assigns additional water to address disparate impacts at the retail level caused by an across-the-board cut of imported supplies. It also applies a conservation credit given to those agencies that have achieved additional water savings at the retail level as a result of successful implementation of water conservation devices, programs and rate structures.

Step 5: Sum Total Allocations and Determine Retail Reliability — This is the final step in calculating a retail agency's total allocation for imported supplies. The model sums an agency's total imported allocation with all of the adjustments and credits and then calculates each agency's retail reliability compared to its Allocation Year Retail Demand.

The MWDOC WSAP includes additional measures for plan implementation, including the following:

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• Appeal Process — An appeals process to provide member agencies the opportunity to request a change to their allocation based on new or corrected information.

MWDOC anticipates that under most circumstances, a member agency's appeal will be the basis for an appeal to Metropolitan by MWDOC. • Melded Penalty Rate Structure — At the end of the allocation year, MWDOC would only charge a penalty to each member agency that exceeded their allocation if MWDOC exceeds its total allocation and is required to pay a penalty to Metropolitan. Metropolitan enforces allocations to member agencies through a tiered penalty rate structure: penalty rates to a member agency that exceeds its total annual allocation at the end of the twelve-month allocation period, according to a specified rate structure. MWDOC's penalty would be assessed according to the member agency's prorated share (acre-feet over usage) of MWDOC penalty amount with Metropolitan. Penalty funds collected by Metropolitan will be invested in water conservation and local resource development. • Tracking and Reporting Water Usage — MWDOC will provide each member agency with water use monthly reports that will compare each member agency's current cumulative retail usage to their allocation baseline. MWDOC will also provide quarterly reports on it cumulative retail usage versus its allocation baseline.
• Timeline and Option to Revisit the Plan — The allocation period will cover 12 consecutive months and the Regional Shortage Level will be set for the entire allocation period. MWDOC only anticipates calling for allocation when Metropolitan declares a shortage; and no later than 30 days from Metropolitan's declaration will MWDOC announce allocation to its member agencies.

Due to the complexity of calculating allocations and the potential for unforeseen circumstances that may occur during an allocation year, after one year of implementation, MWDOC staff and member agencies have the opportunity to make recommendations to the MWDOC Board that will improve the method, calculation, and approach of the MWDOC WSAP.

City of Newport Beach
In 1992, the City adopted its Water Shortage Contingency Plan (WSCP) in response to California Assembly Bill Number 11. The WSCP is intended to conservatively manage the City's water resources to provide water to its customers on an equitable and business - sound basis, in the event of a curtailment of deliveries of up to 50 percent.

The City adopted Water Conservation and Supply Level Regulations Ordinance No. 2010-16 on September 14, 2010, which establishes a comprehensive staged water conservation program that will encourage reduced water consumption within the City through conservation, enable effective water supply planning, assure reasonable and City of Newport Beach
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beneficial use of water, prevent waste of water, and maximize the efficient use of water within the City. Along with permanent water conservation requirements, the City's Water Conservation and Supply Level Regulations consists of the following four stages found in Table 5-1 to respond to a reduction in potable water available to the City for distribution to its customers with permanent conservation requirements in effect at all times unless a mandatory conservation stage has been implemented by the City.

Table 5-1: Water Supply Shortage Stages and Conditions — Rationing Stages Stage No.

Water Supply
o
/Shortage
Conditions
Level 1 Mandatory Conservation
The City Council
Requirements
determines that a water
supply shortage or
Level 2 Mandatory Conservation
Requirements
threatened shortage
exists, due to drought or
To be
Level 3 Mandatory Conservation
Requirements
other water supply
conditions, and it is
determined
by the City
necessary to impose the
Council.

Level 4 Mandatory Conservation
mandatory conservation
Requirements
requirements applicable
to the particular level of
water supply shortage.

5.2. Three -Year Minimum Water Supply
Metropolitan does not provide annual estimates of the minimum supplies available to its member agencies. As such, Metropolitan member agencies must develop their own estimates for the purposes of meeting the requirements of the Act.

Section 135 of the Metropolitan Water District Act declares that a member agency has the right to invoke its "preferential right" to water, which grants each member agency a preferential right to purchase a percentage of Metropolitan's available supplies based on specified, cumulative financial contributions to Metropolitan. Each year, Metropolitan calculates and distributes each member agency's percentage of preferential rights.

However, since Metropolitan's creation in 1927, no member agency has ever invoked these rights as a means of acquiring limited supplies from Metropolitan.

As an alternative to preferential rights, Metropolitan adopted the Water Shortage Allocation Plan (WSAP) in February 2008. Under the WSAP, member agencies are allowed to purchase a specified level of supplies without the imposition of penalty rates.

The WSAP uses a combination of estimated total retail demands and historical local supply production within the member agency service area to estimate the firm demands on Metropolitan from each member agency in a given year. Based on a number of City of Newport Beach
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factors, including storage and supply conditions, Metropolitan then determines whether it has the ability to meet these firm demands or will need to allocate its limited supplies among its member agencies. Thus, implicit in Metropolitan's decision not to implement an allocation of its supplies is that at a minimum Metropolitan will be able to meet the firm demands identified for each of the member agencies.

In order to estimate the minimum available supplies from Metropolitan for the period 2011-2013, an analysis was performed to assess the likelihood that Metropolitan would re -implement mandatory water use restrictions in the event of a 1990-92 hydrologic conditions over this period. Specific water management actions during times of water shortage are governed by Metropolitan's Water Shortage and Drought Management Plan (WSDM Plan). Adopted by the Metropolitan Board in 1999, the WSDM Plan provides a general framework for potential storage actions during shortages, but recognizes that storage withdrawals are not isolated actions but part of a set of resource management actions along with water transfers and conservation. As such, there is no specific criterion for which water management actions are to be taken at specific levels of storage.

The implementation of mandatory restrictions is solely at the discretion of the Metropolitan Board and there are no set criteria that require the Board to implement restrictions. Given these conditions, the analysis relies upon a review of recent water operations and transactions that Metropolitan has implemented during recent drought.

The first step in the analysis was a review of projected SWP allocations to Metropolitan, based on historical hydrologies. As with the recent drought, potential impacts to SWP supplies from further drought and the recently implemented biological opinions are anticipated to be the biggest challenges facing Metropolitan in the coming three years.

A review of projected SWP allocations from the DWR's State Water Project Delivery Reliability Report 2009 (2009 SWP Reliability Report) was made to estimate a range of conservative supply assumptions regarding the availability of SWP supplies. The 2009 SWP Reliability Report provides estimates of the current (2009) and future (2029) SWP delivery reliability and incorporates regulatory requirements for SWP and CVP operations in accordance with USFWS and NMFS biological opinions. Estimates of future reliability also reflect potential impacts of climate change and sea level rise.

The analysis assumes a maximum SWP allocation available to Metropolitan of 2,011,500 AF and a Metropolitan storage level of 1,700,000 AF at 2010 year-end. The analysis also assumes a stable water supply from the Colorado River in the amount of 1,150,000 AF through 2015. Although the Colorado River watershed has also experienced drought in recent years, Metropolitan has implemented a number of supply programs that should ensure that supplies from this source are relatively steady for the next three years. Based on estimated "firm" demands on Metropolitan of 2.12 MAF, the annual surplus or deficit was calculated for each year of the three-year period.

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A review of recent Metropolitan water management actions under shortage conditions was then undertaken to estimate the level of storage withdrawals and water transfers that Metropolitan may exercise under the 1990-92 hydrologic conditions were identified. For this analysis, it was assumed that, if Metropolitan storage levels were greater than 2 MAF at the beginning of any year, Metropolitan would be willing to take up to 600 TAF out of storage in that year. Where Metropolitan storage supplies were between 1.2 MAF and 2 MAF at the beginning of the year, it was assumed that Metropolitan would be willing to take up to 400 TAF in that year. At storage levels below 1.2 MAF, it was assumed that Metropolitan would take up to 200 TAF in a given year.

It was also assumed that Metropolitan would be willing to purchase up to 300 TAF of water transfer in any given year. For years where demands still exceeded supplies after accounting for storage withdrawals, transfer purchases were estimated and compared against the 300 TAF limit.

Table 5-2: Metropolitan Shortage Conditions
Study
Year
Actual
Year
SWP
Allocation (%)
SWP
(AF)
CRA
(AF)
Total
(AF)
Demand
(AF)
Surplus/
Shortage (AF)
Stora at

YE (AF)
Transfers
(AF)
2011
1990
30%
603,450
1,108,000
1,711,450
2,124,000
(400,000)
1,300,000
(12,550)
2012
1991
27%
542,820
1,108,000
1,650,820
2,123,000
(200,000)
1,100,000
(272,180)
2013
1992
26%
522,990
1,108,000
1,630,990
2,123,000
(200,000)
900,000
(292,010)
Based on the analysis above, Metropolitan would be able to meet firm demands under the driest three-year hydrologic scenario using the recent water management actions described above without re -implementing mandatory water use restrictions on its member agencies. Given the assumed absence of mandatory restrictions, the estimated minimum imported water supplies available to MWDOC from Metropolitan is assumed to be equal to Metropolitan's estimate of demand for firm supplies for MWDOC, which Metropolitan uses when considering whether to impose mandatory restrictions. Thus, the estimate of the minimum imported supplies available to MWDOC is 261,577 AF13.

MWDOC also has also adopted a shortage allocation plan and accompanying allocation model that estimates firm demands on MWDOC. Assuming MWDOC would not be imposing mandatory restrictions if Metropolitan is not, the estimate of firms demands in MWDOC's latest allocation model has been used to estimate the minimum imported supplies available to each of MWDOC's customer agencies for 2011-13. Thus, the estimate of the minimum imported supplies available to the City is 7,891 AF 14 13 Metropolitan 2010/11 Water Shortage Allocation Plan model (March 2011) 14 MWDOC Water Shortage Allocation model (August 2010)
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As captured in its 2010 RUWMP, Metropolitan believes that the water supply and demand management actions it is undertaking will increase its reliability throughout the 25-year period addressed in its plan. Thus for purposes of this estimate, it is assumed that Metropolitan and MWDOC will be able to maintain the identified supply amounts throughout the three-year period.

Metropolitan projects reliability for full service demands through the year 2035.

Additionally, through a variety of groundwater reliability programs conducted by OCWD and participated in by the City, local supplies are projected to be maintained at demand levels. Based on the MWDOC Water Supply Allocation Plan, the City is expected to fully meet demands for the next three years assuming Metropolitan and MWDOC are not in shortage, a Basin Production Percentage of 62% for Local Supplies and zero allocations are imposed for Imported Supplies. Normal year supplies are based on the Base Period supply in the MWDOC Water Supply Allocation Plan, which is the average of the last three non -shortage calendar years 2004, 2005, and 2006. The Three Year Estimated Minimum Water Supply is listed in Table 5-3.

Table 5-3: Three -Year Estimated Minimum Water Supply (AFY) Source
Normal
Year 1
Year 2
Year 3
Base Year
2010/2011
2011/2012
2012/2013
Local Supplies
4,778
10,267
10,267
10,267
Imported Supply
13,126
7,891
7,891
7,891
Total
17,904
18,158
18,158
18,158

5.3. Catastrophic Supply Interruption
Given the great distances that imported supplies travel to reach Orange County, the region is vulnerable to interruptions along hundreds of miles aqueducts, pipelines and other facilities associated with delivering the supplies to the region. Additionally, this water is distributed to customers through an intricate network of pipes and water mains that are susceptible to damage from earthquakes and other disasters.

Metropolitan
Metropolitan has comprehensive plans for stages of actions it would undertake to address a catastrophic interruption in water supplies through its WSDM and WSAP Plans.

Metropolitan also developed an Emergency Storage Requirement to mitigate against potential interruption in water supplies resulting from catastrophic occurrences within the southern California region, including seismic events along the San Andreas Fault. In addition, Metropolitan is working with the State to implement a comprehensive City of Newport Beach
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improvement plan to address catastrophic occurrences that could occur outside of the Southern California region, such as a maximum probable seismic event in the Delta that would cause levee failure and disruption of SWP deliveries. For greater detail on Metropolitan's planned responses to catastrophic interruption, please refer to Metropolitan's RUWMP.

Water Emergency Response Organization of Orange County
In 1983, the Orange County water community identified a need to develop a plan on how agencies would respond effectively to disasters impacting the regional water distribution system. The collective efforts of these agencies resulted in the formation of the Water Emergency Response Organization of Orange County (WEROC) to coordinate emergency response on behalf of all Orange County water and wastewater agencies, develop an emergency plan to respond to disasters, and conduct disaster training exercises for the Orange County water community. WEROC was established with the creation of an indemnification agreement between its member agencies to protect each other against civil liabilities and to facilitate the exchange of resources. WEROC is unique in its ability to provide a single point of contact for representation of all water and wastewater utilities in Orange County during a disaster. This representation is to the county, state, and federal disaster coordination agencies. Within the Orange County Operational Area, WEROC is the recognized contact for emergency response for the water community.

City of Newport Beach
The City developed its Emergency Preparedness Plan in 1998 to meet emergencies within its service area and has updated the plan as necessary. The plan provides information on City operations, assigns responsibilities, and establishes general policies and procedures associated with operations during natural disasters, technological incidents, and nuclear defense emergencies.

Table 5-4 summaries various possible catastrophes and a summary of the actions that would be taken in response.

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Table 5-4: Preparation Actions for Catastrophe
Possible Catastrophe
Preparation Actions
Request information from SCE to determine how long
outage will be. Pump Stations will automatically
utilize back-up power through an auto -transfer
Regional Power Outage
switch. Utilize Metropolitan connections and
emergency supply in Big Canyon Reservoir. Notify
customers, media, state and local authorities if
service is disrupted or significant demand
management is necessary.

The City would activate its EOC and each Department
would activate their respective DOC's. All City
departments are assigned specific functions as
Earthquake
described in the Functional Responsibility Matrix.

Each department will respond to, manage, and
request mutual aid resources/personnel to respond
to their assigned responsibilities. Issue boil alert of "do not drink" orders as needed.

Request information from Metropolitan on length of
shutdown. If insignificant, utilize emergency water
Diemer Plant Shutdown
storage or pump groundwater from wells to supply
demand for all customers. Also, potentially
implement water use prohibitions, depending on
length and severity.

Notify Newport Beach Police Department and
Department of Health
Services. Attempt to isolate affected areas, in known,
Supply Contamination
preventing spreading to other areas. Issue a "do not
drink" or boil order as necessary. Provide alternate
water supply to areas affected. Activation of EOC
would depend on severity.

Request information from other City departments on
the severity and location of the flooding, to
Flooding
determine the potential damage to facilities.

Activation of DOC and potentially EOC, based on
severity. Utilize portable pumps and generators at
locations most affected.

Emergency evacuation. Subsequently, possible
Tsunami
activation of DOC and
EOC based on severity. Have not fully addressed this
event.

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5.4. Prohibitions, Penalties and Consumption Reduction
Methods
Prohibitions
The Water Conservation and Supply Level Regulations Ordinance No. 2010-16 lists water conservation requirements which shall take effect upon implementation by the City Council. These prohibitions shall promote the efficient use of water, reduce or eliminate water waste, complement the City's Water Quality regulations and urban runoff reduction efforts, and enable implementation of the City's Water Shortage Contingency Measures.

Prohibitions include, but are not limited to, restrictions on outdoor watering, washing of vehicles, food preparation establishments, repairing of leaks and other malfunctions, swimming pools, decorative water features, construction activities, and water service provisions which can be found in Table 5-5.

Table 5-5: Mandatory Prohibitions
Examples of Prohibitions
Stage When Prohibition Becomes
Mandatory
The use of potable water to irrigate any lawn
and/or ornamental landscape area using a
landscape irrigation system or watering device that
is not continuously attended is prohibited unless
such irrigation is limited to no more than fifteen
Year Round
(15) minutes per day per station. Systems that
lawfully use recycled water or use very low flow
drip type irrigation systems, weather based
controllers, or stream rotor sprinklers are exempt.

Watering of any vegetated area in a manner that
causes excessive water flow or runoff onto an
Year Round
adjoining sidewalk, street, driveway, alley, gutter,
or ditch is prohibited.

Washing down sidewalks, walkways, drive ways,
parking areas, or other paved surfaces is
prohibited except as required to alleviate safety or
Year Round
sanitary hazards by use of a handheld container or
hose equipped with an automatic shutoff device.

Leaks, breaks, and malfunctions in the water user's
plumbing or distribution system must be repaired
Year Round
within seven (7) days notice by the City, unless
other arrangements have been made with the City.

The use of potable water for landscape irrigation
Year Round
during a rainfall event is prohibited.

By July 1, 2012, all landscape irrigation systems
connected to dedicated landscape meters shall
Year Round
include rain sensors that automatically shut off
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Examples of Prohibitions
Stage When Prohibition Becomes
Mandatory
such systems during periods of rain or include
evapotranspiration systems that schedule
irrigation based on climatic conditions.

Water fountains and other decorative water
Year Round
features must use a re -circulating water system
The use of water to clean a vehicle is prohibited
except by use of a handheld container, hose
Year Round
equipped with an automatic shut off device, or at a
commercial car washing facility.

All new commercial conveyor car wash systems in
commercial car washing facilities shall be
Year Round
operational re -circulating water systems.

By January 1, 2013, all commercial conveyor car
wash systems in commercial car washing facilities
shall be operational re -circulating water systems,
Year Round
or the customer must have secured an exemption
from this requirement.

No public place where food is sold, served, or
offered for sale shall serve drinking water to
Year Round
customers unless requested.

Commercial lodging establishments must provide
customers the option of not having towels and
Year Round
linen laundered daily.

No installation of a single pass cooling system.

Year Round
All new washing machines installed in commercial
and/or coin -operated laundries shall be ENERGY
STAR" and CEE Tier III qualified. By January 1,
Year Round
2014, all washing machines installed in commercial
and/or coin -operated laundries shall be ENERGY
STAR' and CEE Tier III qualified.

No customer shall use water from any fire hydrant
for any purpose other than fire suppression or
emergency aid without first: (1) requesting and
Year Round
posting the appropriate fees at the City, and (2)
obtaining a hydrant meter to record all water
consumption for a specified project.

No person shall use potable water for soil
compaction or dust control in a construction site
where there is an appropriate source of non -
potable water approved by the Department of
Year Round
Public Health. No person shall operate a hose
within a construction site that is not equipped with
an automatic shutoff device, provided such devices
are available for the size and type of hose in use.

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Water Supplies Contingency Plan
Examples of Prohibitions
Stage When Prohibition Becomes
Mandatory
New or remodeled commercial kitchens shall be
equipped with water conserving kitchen spray
Year Round
valves and best -available water -conserving
technology.

Defrosting of food with running water is
Year Round
prohibited.

Scoop sinks shall be set at minimum water flow at
Year Round
all times and shut off during non -working hours.

Hoses used for commercial kitchen areas must be
Year Round
equipped with an automatic shut off device.

Watering or irrigation of vegetated areas is limited
to four (4) days per week from April — October and
two (2) days per week from November — March
except by use of a hand held device, hose
Level 1
equipped with an automatic shutoff device, low
flow irrigation systems, irrigation of food crops, for
the express purpose of adjusting or repairing an
irrigation system, or with approved recycled water.

No customer shall use more water during any
billing period than the percentage of the base
amount established in the resolution declaring the
Level One water supply shortage, whose
Level 1
percentage shall be in the range from one hundred
(100) percent and ninety (90) percent of the base
amount.

Leaks, breaks, and malfunctions in the water user's
plumbing or distribution system must be repaired
Level 1
within three (3) days notice by the City, unless
other arrangements have been made with the City.

Filling or refilling ornamental lakes and ponds
more than once a week is prohibited. Ornamental
lakes and ponds that sustain aquatic life of
Level 1
significant value and were actively managed prior
to the storage declaration are exempt.

The use of potable water to fill or refill by more
than one foot a residential swimming pool or
Level 1
outdoor spa more than once a week is prohibited.

Watering or irrigation of vegetated areas is limited
to the hours between 5 pm and 9:00 am three (3)
days per week from April — October and one (1)
day per week from November — March except by
Level 2
use of a hand held device, hose equipped with an
automatic shutoff device, low flow irrigation
systems, irrigation of food crops, for the express
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Examples of Prohibitions
Stage When Prohibition Becomes
Mandatory
purpose of adjusting or repairing an irrigation
system, or with approved recycled water.

No customer shall use more water during any
billing period than the percentage of the base
amount established in the resolution declaring the
Level Two water supply shortage, which
Level 2
percentage shall be in the range from ninety (90)
percent to seventy-five (75) percent of the base
amount.

Leaks, breaks, and malfunctions in the water user's
plumbing or distribution system must be repaired
Level 2
within two (2) days notice by the City, unless other
arrangements have been made with the City.

Filling or refilling ornamental lakes and ponds
more than once every other week is prohibited.

Ornamental lakes and ponds that sustain aquatic
Level 2
life of significant value and were actively managed
prior to the storage declaration are exempt.

The use of potable water to fill or refill by more
than one foot a residential swimming pool or
Level 2
outdoor spa more than once a week is prohibited.

Watering or irrigation of vegetated areas is limited
to the hours between 5 pm and 9:00 am two (2)
days per week from April — October and one (1)
day per week from November — March except by
use of a hand held device, hose equipped with an
Level 3
automatic shutoff device, low flow irrigation
systems, irrigation of food crops, for the express
purpose of adjusting or repairing an irrigation
system, or with approved recycled water.

No customer shall use more water during any
billing period than the percentage of the base
amount established in the resolution declaring the
Level 3
Level Three water shortage, whose percentage
shall be in the range from seventy-five (75) percent
and sixty (60) percent of the base amount.

Leaks, breaks, and malfunctions in the water user's
plumbing or distribution system must be repaired
Level 3
within one (1) day notice by the City, unless other
arrangements have been made with the City.

Filling or refilling ornamental lakes and ponds is
prohibited. Ornamental lakes and ponds that
Level 3
sustain aquatic life of significant value and were
actively managed prior to the storage declaration
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Examples of Prohibitions
Stage When Prohibition Becomes
Mandatory
are exempt.

The use of potable water to fill or refill a residential Level 3
swimming pool or outdoor spa is prohibited.

Irrigation of any vegetated area with potable water
is prohibited except by use of a hand held
container or hose equipped with an automatic shut
off device. Maintenance of landscape to the extent
necessary for fire and/or erosion protection is
exempt. Maintenance of plant materials identified
to be rare or essential to the well being of rare
animals is exempt. Maintenance of landscape
Level 4
within active public parks and playing fields, day
care centers, school grounds, cemeteries, and golf
course greens is exempt provided that such
irrigation does not exceed two times per week.

Public work projects and actively irrigated
environmental projects are exempt. Food crops,
provided that such irrigation does not exceed two
times per week, are exempt.

No new potable water service, meters, or will -
serve letters will be provided except under one or
more of the following:
a. Projects necessary to protect public health,
safety, and/or well being.
b. Projects with a valid unexpired building
Level 4
permit.
c. Projects with applicants who can provide
substantial evidence of an enforceable
commitment that water demands will be
offset prior to the provision of new water
meters to the satisfaction of the City.

No customer shall use more water during any
billing period than the percentage of the base
amount established in the resolution declaring the
Level 4
Level Four water shortage, which percentage shall
be less than sixty (60) percent of the base amount.

Consumption Reduction Methods
Reductions in water consumption by the City during water shortages will reduce MWDOC's overall demands on Metropolitan. Under the ordinance, the City has the City of Newport Beach
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Section 5
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authority of allocating available supplies as deemed necessary under the water conservation phases. Consumption Reduction Methods are listed in Table 5-6.

Table 5-6: Consumption Reduction Methods
Stage When
Projected
Consumption Reduction Methods
Method Takes
Reduction (%)
Effect
Year Round Conservation Measures
To be
determined
Level 1 Conservation Measures
1 Level 2 Conservation Measures
2 by the City
Level 3 Conservation Measures
3 Council.

Level 4 Conservation Measures
4 Penalties for Excessive Use
Any customer who violates provisions of the Water Conservation and Supply Level Regulations by either excess use of water or by specific violation of one or more of the applicable water use restrictions for a particular mandatory conservation stage may be cited by the City and may be subject to written notices, surcharges, fines, flow restrictions, service disconnection, and/or service termination which are detailed in Table 5-7.

Table 5-7: Penalties and Charges
Stage When Penalty
Penalties or Charges
Takes Effect
Written Notice
First Violation
Second and Subsequent
Installation of Water Flow Restrictor
Violations
Willful violations of
Termination of Service
mandatory restrictions

5.5. Impacts to Revenue
The actions described above to address a range of water shortage conditions have the potential to impact the City's revenues and expenditures. To assess these impacts, the City calculated the revenue impacts resulting from a 10%, 20% and 50% reduction in sales as compared to a base year that was based on an estimate of normal year baseline.

Other factors incorporated into the analysis included water losses, pricing structure and avoided costs. The results of this analysis are shown below in Table 5-8.

City of Newport Beach
2010 Urban Water Management Plan 5-16

Section 5
Water Supplies Contingency Plan
Table 5-8: Revenue Impacts Analysis
Demand
Baseline
10%
20%
50%
Water Sales (HCF)
6,514,518
5,863,066
5,211,614
3,257,259
Revenue
Tier 1 Revenue
$16,025,714
$14,423,143
$12,820,571
$11,218,000
Fixed Monthly/Bimonthly Charge
Revenue
$4,884,770
$4,884,770
$4,884,770
$4,884,770
Total Rate Revenue
$20,910,484
$19,307,913
$17,705,341
$12,897,627
Revenue Lost
$1,602,571
$3,205,143
$8,012,857
Variable Costs
Water Produced/Purchased $
$8,017,810
$7,216,029
$6,414,248
$4,008,905
Avoided Costs
$801,781
$1,603,562
$4,008,905
Net Revenue Change
$800,790
$1,601,581
$4,003,952
Anticipated shortfalls in projected revenue due to water supply shortages would need to be covered through increased water rates and/or an advance from funds set aside by the City. The existing rate structure could be adjusted to recapture a portion of the lost revenue, which would affect all water users within the City's service area. The City has a Water Rate Stabilization Fund to be used in times of drought and emergencies to offset the loss of revenue. The City could also advance funds from its General Fund for the loss of essential revenue.

5.6. Reduction Measuring Mechanism
In order to quantify actual reductions in water use, several measuring mechanisms must be utilized. Water Use Monitoring Mechanisms ranging from water meter auditing, daily production monitoring, distribution records, and monitoring employees are listed in Table 5-9.

City of Newport Beach
2010 Urban Water Management Plan 5-17

Section 5
Water Supplies Contingency Plan
Table 5-9: Water Use Monitoring Mechanisms
Mechanisms for Determining Actual
Type of Data Expected
Reductions
Water meter auditing
Actual reduction of water used for
meters over one -inch
Daily production and distribution
records would be monitored. The data is
Monitor daily production/distribution
recorded by zone, which would enable
records
City staff to determine which zone was
using more water than expected.

Customers would be alerted to actual
water use (increase/decrease).

City Code Enforcement Staff employee
would monitor all unnecessary domestic
Monitoring Employee
irrigation use and serve on the "dawn"
patrol to verify that residences and
irrigation customers are not over -
watering in the early hours of the day.

City of Newport Beach
2010 Urban Water Management Plan 5-18

6. Recycled Water

6.1. Agency Coordination
Recycled water is defined as domestic wastewater purified through primary, secondary and tertiary treatment. Recycled water is acceptable for most non -potable water purposes such as irrigation, commercial, and industrial processes. The City maintains an agreement with OCWD to supply Green Acres Project (GAP) water to customers where available.

The addition of this supplemental water will reduce the demand on the City's water supply, thereby providing additional reserves for firefighting capacity, preserving potable water for drinking, and ensuring landscape irrigation during period of drought. Use of recycled water is expected to continue an upward trend in the City; throughout the County of Orange and all throughout the state of California.

The City continues to support regional efforts to increase the use of recycled water.

Because the City produces a majority of its water supply from the Basin, the City benefits from the actions of OCWD using recycled water to protect the Basin through seawater intrusion barriers and groundwater recharge basins. The City, therefore, indirectly benefits from this regional use of recycled water.

Table 6-1: Participating Agencies
Participating Agencies
Participated
Water Agencies
Newport
Beach
Wastewater Agencies
OCSD
Groundwater Agencies
OCWD
Planning Agencies

6.2. Wastewater Description and Disposal
Within its service area, the City is responsible for wastewater collection and conveyance to the Orange County Sanitation District (OCSD) sewer treatment plant, located in Huntington Beach. OCSD also treats wastewater from several other municipalities.

OCSD discharges treated water into the ocean through a 120-inch diameter ocean outfall pipe that extends five miles offshore to the discharge point. A standby 78-inch diameter outfall pipeline stretches one mile from shore. The treatment levels meet all current State and Federal requirements. OCSD also sends up to 10 mgd of treated wastewater every City of Newport Beach
2010 Urban Water Management Plan 6-1

Section 6
Recycled Water
day to the Orange County Water District for further processing for landscape irrigation and for injection into the groundwater seawater intrusion barrier.

Within the City's service area, discharge of treated wastewater is regulated by the Regional Water Quality Control Board (RWQCB). In general, the majority of the wastewater generated and treated during the summer months is used for alternative beneficial uses such as wetland habitat and restoration and irrigation for golf courses. The use of the recycled water helps supply part of the water demand during the peak summer months.

Table 6-2 summarizes the past, current, and projected wastewater volumes collected and treated, and the quantity of wastewater treated to recycled water standards for treatment plants within OCSD's service area. Table 6-3 summarizes the disposal method, and treatment level of discharge volumes.

Table 6-2: Wastewater Collection and Treatment (AFY)
Type of Wastewater
Fiscal Year Ending
Awilm
2010
2015
2020
2025
2030
2035-opt
Wastewater
Collected & Treated
273,017
232,348
302,400
312,704
321,104
329,392
333,536
in Service Area
Volume that Meets
Recycled Water
12,156
75,000
105,000
105,000
105,000
105,000
105,000
Standards
Table 6-3: Disposal of Wastewater (Non -Recycled) (AFY) Method of Disposal
Treatment
Level
Fiscal Year Ending
2035
5 #157,348
2020
2025
2030
00 Ocean Outfall
Secondary
197,400
207,704
216,104
224,392 228,536

6.3. Current Recycled Water Uses
The City has approximately 10 miles of recycled water distribution pipeline, which currently supplies eight recycled use sites.

Recycled water is supplied to the City from the Orange County Water District (OCWD) from Fountain Valley as part of OCWD's Green Acres Project. OCWD produces approximately 7.5 MGD of tertiary treated, disinfected recycled water. Some of the sites served by recycled water include the Newport Beach County Club, the Big Canyon City of Newport Beach
2010 Urban Water Management Plan 6-2

Section 6
Recycled Water
Country Club, median strips, and a City owned park. In FY 2009-10, approximately 400 AF of recycled water was used in the City's service area for landscape irrigation, about 3% of the City's annual water demand.

Table 6-4 below illustrates the current uses for recycled water in the City. The usage is limited to landscape irrigation with a tertiary treatment level.

Table 6-4: Current Recycled Water Uses (AFY)
User Type
Treatment
Level
Fiscal
Year
Ending
2010
Agriculture
Landscape
Tertiary
432
Wildlife Habitat
Wetlands
Industrial
Groundwater
Recharge
Total
432

6.4. Potential Recycled Water Uses
Potential recycled water users are locations where recycled water could replace potable water use. These potential users are typically landscape or agricultural irrigation systems, or possibly water users. However, due to the limited access to the project mains and some financial impact on end users, it is not feasible to distribute all of the potential recycled water, and the City does not predict that there will be many other end users in the near future.

Tables 6-5 and 6-6 represent projected recycled water use within the City's service area through 2035. Recycled water use will remain constant through the 25-year period, with landscape irrigation as its sole use.

Table 6-5: Projected Future Use of Recycled Water in Service Area (AFY) User TypFiscal Year Ending
e
2015 2020 2025 2030 2035-opt
Projected Use of 432 450 500 500 500 500
Recycled Water
City of Newport Beach
2010 Urban Water Management Plan 6-3

Section 6
Recycled Water
Table 6-6: Projected Recycled Water Uses (AFY)
User Type
Treatment
Level
Fiscal Year Ending
2015
2020
2025
2030
2035-opt
Agriculture
Landscape
Tertiary
450
500
500
500
500
Wildlife Habitat
Wetlands
Industrial
Groundwater Recharge
Total
450
500
500
500
500
Table 6-7 compares the recycled water use projections from the City's 2005 UWMP with actual 2010 recycled water use.

Table 6-7: Recycled Water Uses — 2005 Projections compared with 2010 Actual (AFY) User Type
2005 Projection
for 2010
2010 Actual
Use
Agriculture
Landscape
444
432
Wildlife Habitat
Wetlands
Industrial
Groundwater
Recharge
Total
444
432

6.4.1. Direct Non -Potable Reuse
The City currently uses recycled water from OCWD's Green Acres Project for direct non -potable reuse such as landscape irrigation.

6.4.2. Indirect Potable Reuse
The City benefits indirectly from the replenishment of the Orange County groundwater basin using GWRS water that meets state and federal drinking water standards for potable reuse.

City of Newport Beach
2010 Urban Water Management Plan 6-4

Section 6
Recycled Water

6.5. Optimization Plan
To promote the use of recycled water, the City provides financial incentives by offering a 20 percent discount off potable water rates. The current rate for recycled users is $1.66 per unit (one unit equals 748 gallons).

In Orange County, the majority of recycled water is used for irrigating golf courses, parks, schools, business and communal landscaping. However, future recycled water use can increase by requiring dual piping in new developments, retrofitting existing landscaped areas and constructing recycled water pumping stations and transmission mains to reach areas far from the treatment plants. Gains in implementing some of these projects have been made throughout the county; however, the additional costs, large energy requirements, and facilities make such projects very expensive to pursue.

The City will conduct future cost/benefit analyses for recycled water projects, and seek creative solutions and a balance to recycled water use, in coordination with MWDOC, OCWD, Metropolitan and other cooperative agencies. These include solutions for funding, regulatory requirements, institutional arrangements and public acceptance.

City of Newport Beach
2010 Urban Water Management Plan 6-5

7. Future Water Supply Projects and Programs

7.1. Water Management Tools
Resource optimization such as desalination to minimize the needs for imported water is led by the regional agencies in collaboration with local agencies.

With the eventual replacement of older wells with new more efficient wells, increasing the capacity of existing booster stations, and continued efforts in reducing water waste, the City can meet projected demands with existing facilities and distribution system.

7.2. Transfer or Exchange Opportunities
MWDOC will continue to help its member agencies in developing Transfer or Exchange opportunities and ensuring their success. In fulfilling this role, MWDOC will look to help its member agencies navigate the operational and administrative issues of wheeling water through the Metropolitan water distribution system.

The City relies on the efforts of Metropolitan as well as MWDOC to pursue transfer or exchange opportunities. At this time, the City is not currently involved in any transfer or exchange opportunities.

7.3. Planned Water Supply Projects and Programs
At this time, the City does not have any planned water supply projects or programs.

7.4. Desalination Opportunities
Desalination is viewed as a way to develop a local, reliable source of water that assists agencies reduce their demand on imported water, reduce groundwater overdraft, and in some cases make unusable groundwater available for municipal uses. Currently, there are no identified projects within the City for desalination of seawater or impaired groundwater. However, from a regional perspective, desalination projects within the region indirectly benefit the City.

In Orange County, there are three proposed ocean desalination projects that could serve MWDOC, including one specifically that may benefit the City. These are the Huntington Beach Seawater Desalination Project, the South Orange Coastal Desalination Project, and the Camp Pendleton Seawater Desalination Project.

City of Newport Beach
2010 Urban Water Management Plan 7-1

Section 7
Future Water Supply Projects and Programs
Table 7-1: Opportunities for Desalinated Water
Sources of Water
Check if Yes
Ocean Water
X
Brackish Ocean Water
X
Brackish Groundwater

7.4.1. Groundwater
There are currently no brackish groundwater opportunities within the City's service area.

7.4.2. Ocean Water
Huntington Beach Seawater Desalination Project — Poseidon Resources LLC (Poseidon), a private company, has proposed development of the Huntington Beach Seawater Desalination Project to be located adjacent to the AES Generation Power Plant in the City of Huntington Beach along Pacific Coast Highway and Newland Street. The proposed project would produce up to 50 MGD (56,000 AFY) of drinking water and will distribute water to coastal and south Orange County to provide approximately 8% of Orange County's water supply needs. The project supplies would be distributed to participating agencies through a combination of (1) direct deliveries through facilities including the East Orange County Feeder #2 (EOCF #2), the City of Huntington Beach's distribution system, and the West Orange County Water Board Feeder #2 (WOCWBF #2), and (2) water supply exchanges with agencies with no direct connection to facilities associated with the Project.

Poseidon had received non -binding Letters of Intent (LOI) from the Municipal Water District of Orange County and 17 retail water agencies to purchase a total of approximately 72 MGD (88,000 AFY) of Project supplies. On January 20, 2010, the City signed a non -binding LOI for 7.1 MGD (8,000 AFY) of Project supplies.

The Project has received specific approvals from the Huntington Beach City Council, including the Coastal Development Permit, Tentative Parcel Map, Subsequent Environmental Impact Report and Conditional Use Permit, which collectively provided for the long-term operation of the desalination facility.

In addition to final agreements with the participating agencies, the Project still needs approvals from the State Lands Commission and the California Coastal Commission before Poseidon can commence construction of the desalination facility in Huntington Beach. A public hearing on the Project before the State Lands Commission is expected as early as this October. If project receives all required permits by 2011, it could be producing drinking water for Orange County by as soon as 2013.

City of Newport Beach
2010 Urban Water Management Plan 7-2

Section 7
Future Water Supply Projects and Programs
South Orange Coastal Desalination Project — MWDOC is proposing a desalination project in joint with Laguna Beach County Water District, Moulton Niguel Water District, City of San Clemente, City of San Juan Capistrano, South Coast Water District, and Metropolitan. The project is to be located adjacent to the San Juan Creek in Dana Point just east of the transition road from PCH to the I-5. The project will provide 15 MGD (16,000 AFY) of drinking water and will provide up to 30% of its potable water supply to the participating agencies.

Phase 1 consists of drilling 4 test borings and installing monitoring wells. Phase 2 consists of drilling, constructing and pumping a test slant well. Phase 3 consists of constructing a Pilot Test Facility to collect and assess water quality. Phases 1 and 2 have been completed and Phase 3 commenced in June 2010 and will last 18 months.

If pumping results are favorable after testing, a full-scale project description and EIR will be developed. If EIR is adopted and necessary permits are approved, project could be operational by 2016.

Camp Pendleton Seawater Desalination Project — San Diego County Water Authority (SDCWA) is proposing a desalination project in joint with Metropolitan to be located at Camp Pendleton Marine Corps Base adjacent to the Santa Margarita River. The initial project would be a 50 or 100 MGD plant with expansions in 50 MGD increments up to a max of 150 MGD making this the largest proposed desalination plant in the US.

The project is currently in the study feasibility stage and is conducting geological surveys to study the effect on ocean life and examining routes to bring desalination to SDCWA's delivery system. MWDOC and south Orange County agencies are maintaining a potential interest in the project, but at this time is only doing some limited fact finding and monitoring of the project.

City of Newport Beach
2010 Urban Water Management Plan 7-3

8. UWMP Adoption Process

8.1. Overview
Recognizing that close coordination among other relevant public agencies is the key to the success of its UWMP, the City worked closely with other entities such as MWDOC to develop and update this planning document. The City also encouraged public involvement through the holding of a public hearing to learn and ask questions about their water supply.

This section provides the information required in Article 3 of the Water Code related to adoption and implementation of the UWMP. Table 8-1 summarizes external coordination and outreach activities carried out by the City and their corresponding dates. The UWMP checklist to confirm compliance with the Water Code is provided in Appendix A.

Table 8-1: External Coordination and Outreach
External Coordination and Outreach
Date
Reference
Encouraged public involvement (Public Hearing)
May 28, 2011 &
Appendix F
June 4, 2011
Notified city or county within supplier's service
area that water supplier is preparing an updated
March 22, 2011
Appendix E
UWMP (at least 60 days prior to public hearing)
Held public hearing
June 14, 2011
Appendix F
Adopted UWMP
Appendix G
Submitted UWMP to DWR (no later than 30 days
after adoption)
Submitted UWMP to the California State Library
and city or county within the supplier's service area
(no later than 30 days after adoption)
Made UWMP available for public review (no later
than 30 days after filing with DWR)
This UWMP was adopted by the City Council on MONTH DAY, YEAR. A copy of the adopted resolution is provided in Appendix G.

A change from the 2004 legislative session to the 2009 legislative session required the City to notify any city or county within its service area at least 60 days prior to the public City of Newport Beach
2010 Urban Water Management Plan 8-1

Section 8
UWMP Adoption Process
hearing. The City sent a Letter of Notification to the County of Orange on March 22, 2011 that it is in the process of preparing an updated UWMP (Appendix E).

8.2. Public Participation
The City encouraged community and public interest involvement in the plan update through public hearings and inspection of the draft document. Public hearing notifications were published in local newspapers. A copy of the published Notice of Public Hearing is included in Appendix E. The hearing provided an opportunity for all residents and employees in the service area to learn and ask questions about their water supply in addition to the City's plans for providing a reliable, safe, high -quality water supply.

Copies of the draft plan were made available for public inspection at the City Clerk's and Utilities Department offices.

8.3. Agency Coordination
All of the City's water supply planning relates to the policies, rules, and regulations of its regional and local water providers. The City is dependent on imported water from Metropolitan through MWDOC, its regional wholesaler. The City is also dependent on groundwater from OCWD, the agency which manages the Santa Ana River Groundwater Basin as well as provides recycled water in partnership with the Orange County Sanitation District (OCSD). As such, the City involved these water providers in the development of its 2010 UWMP at various levels of contribution as summarized in Table 8-2.

Table 8-2: Coordination with Appropriate Agencies
Sent
Sent
Participated in
Attended
Contacted
Not
Commented
Copy of
Notice of
Plan
Public
for
Involved/No
on Draft
Draft
Intention
Development
Meetings
Assistance
Information
Plan
to Adopt
MWDOC
X
X
Metropolitan
X
OCWD
X
County of
X
Orange
As a member agency of MWDOC, MWDOC provided assistance to the City's 2010 UWMP development by providing much of the data and analysis such as, population projections from the California State University at Fullerton, Center of Demographic City of Newport Beach
2010 Urban Water Management Plan 8-2

Section 8
UWMP Adoption Process
Research (CDR) and SBx7-7 modeling. MWDOC provided information that quantifies water availability to meet their projected demands for the next 25 years, in five-year increments. Based on the projections of retail demand and local supplies completed by the City, and the imported supply availability described in Metropolitan's 2010 RUWMP, MWDOC prepared an informational package with data specific to the City, that incorporated additional calculations for the required planning efforts. The City's UWMP was developed in collaboration with MWDOC's 2010 RUWMP to ensure consistency between the two documents as well as Metropolitan's 2010 RUWMP and 2010 Integrated Water Resources Plan.

As a groundwater producer who relies on supplies from the OCWD-managed Orange County Groundwater Basin, the City coordinated the preparation of this 2010 UWMP with OCWD. OCWD provided projections of the amount of groundwater, the City is allowed to extract in the 25-year planning horizon. In addition, information from OCWD's 2009 Groundwater Management Plan and 2008-2009 Engineer's Report were incorporated in this document where relevant.

8.4. UWMP Submittal

8.4.1. Review of Implementation of 2005 UWMP
As required by California Water Code, the City summarizes the implementation of the Water Conservation and Water Recycling Programs to date, and compares the implementation to those as planned in its 2005 UWMP.

Comparison of 2005 Planned Water Conservation Programs with 2010 Actual Programs
As a signatory to the MOU regarding urban water use efficiency, the City's commitment to implement BMP-based water use efficiency program continues today. For the City's specific achievements in the area of conservation, please see Section 4 of this Plan.

Comparison of 2005 Projected Recycled Water Use with 2010 Actual Use Current recycled water projections for the City in 2010 are about 3% less than previously forecasted for 2010 in the 2005 UWMP, as illustrated in Table 6-7.

8.4.2. Filing of 2010 UWMP
The City Council reviewed the Final Draft Plan on DATE. The seven -member City Council approved the 2010 UWMP on DATE. See Appendix G for the resolution approving the Plan.

By August 1, 2011, the City's Adopted 2010 UWMP was filed with DWR, California State Library, County of Orange, and cities within the City's service area.

City of Newport Beach
2010 Urban Water Management Plan 8-3

No
■ ❑ Initial Study and General Plan Program EIR Addendum No. 2 Technical Appendix F
Assessment of Sewer Capacity Availability Relative to
Increase Allocation of Residential Development
RBF Consulting
May 10, 2012
NNCPC Development Plan Amendment and Related Actions June 2012 Lead Agency: City of Newport Beach

FBF

CONS ULTING
A Z_ = Company

NORTH NEWPORT CENTER

ASSESSMENT OF SEWER CAPACITY AVAILABILITY

RELATIVE TO INCREASED ALLOCATION

OF RESIDENTIAL DEVELOPMENT
(May 10, 2012)
Introduction:

An application has been filed to incorporate 94 additional residential units to the North Newport Center Planned Community (NNCPC) within the San Joaquin Plaza area adjacent to the corner of San Joaquin Hills Road and Santa Cruz Drive.

The subject site is currently occupied by low-rise office buildings. However, the current request to incorporate 94 additional residential units to the previous allocation of 430 residential units established on this site has been anticipated to result in increased demand on the local sewer system when compared to the existing office uses. This assessment has been prepared to assess whether there is adequate capacity within the existing infrastructure within the vicinity to serve the proposed expanded number of residential units proposed to be allocated to the San Joaquin Plaza site.

Existing Conditions:

The subject site is contained within an area of existing development bounded by San Joaquin Hills Road, Santa Cruz Drive, San Clemente Drive and Santa Barbara Drive. While sewer lines exist within each of these roadways, the primary means of serving the existing office buildings on the site utilizes 8 inch VCP sewer lines extending from the subject site to San Clemente, which connects into the 8 inch VCP in Santa Barbara that connects to the facilities in Jamboree. Examination of the plans for the sewer lines in San Clemente and Santa Barbara indicated that a short segment (approximately 64 feet long) between Manhole 3 and Manhole 4 generally westerly of the art museum had a significantly flatter slope than all other potentially affected segments and, therefore, would be the location within the lowest potential capacity. (See attached excepts from record plans for San Clemente Drive).

Capacity Assessment:

The previously identified point of lowest capacity along the system serving the project site has been constructed with a slope slightly over one percent, but for purposes of this assessment the calculations utilize a one percent slope to be conservative. On that basis and reflecting standard conditions regarding the peak flows, the capacity for an 8 inch VCP flowing half full was calculated to be 390,100 gallons per day. This capacity is consistent with industry standard criteria and would be the basis of design for installation of a new sewer line. Furthermore, it should be noted that this facility is calculated to have a capacity of 711,900 gallons per day when % full. (See attached worksheets).

Page 1 of 2 ends

Demand Assessment:

It should be noted that the subject segment of the sewer system currently serves only the art museum and the San Joaquin Plaza office buildings. Therefore, as currently configured, should residential units replace the office uses in San Joaquin Plaza, the only other demand for the capacity in the previously discussed pipe segment would be from the Art Museum. That being said, should the entire San Joaquin Plaza site continue to utilize the subject pipe segment, the demand associated with implementing the residential units would make up virtually all the demand for this segment of the sewer system.

The demand associated with the 94 additional units requested for allocation to the subject site was calculated based on an estimate of 200 gallons per day per unit with an assumed peaking factor of 3.0 and resulted in a projected demand of 56,400 gallons per day. When compared to the previously identified capacity range, it can be seen that the projected demand would represent approximately 15 percent of the design capacity at the most capacity constrained segment in the proximate sewer system.

Although the application currently under review by the City is specifically limited to the allocation of 94 additional units, the projected demand associated with the combined total of 524 residential units has also been calculated. The projected demand associated with all 524 units, based on the previously stated assumptions would be 314,000 gallons per day. When compared to the previously calculated capacity, the demand would utilize approximately 80 percent of the design capacity.

When including an estimated demand of 18,000 gallons per day for the Art Museum, the combined peak flow would with all 524 residential units be estimated to be 334,400 gallons per day. This combined total peak demand would then equate to being 86 percent of the capacity for the pipe flowing half full.

Conclusion:

The projected demand associated with the 94 additional residential units requested for the San Joaquin Plaza site equates to approximately 15 percent of the most constrained pipe segment capacity within the existing sewer system proximate to the project. Since the subject segment of the sewer system serves only the subject site and the Art Museum, it can be concluded that there is adequate capacity within the most capacity constrained portion of the existing sewer system in the vicinity of the project (above Manhole 3) to serve the proposed allocation of additional units.

H:\pdata\10108123\Correspondences\N Newport Center Assess Sewer Capacity Availability_05.10.2012.docx

Page 2 of 2 ends

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390096.82 gal/day
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0.17 ft2
Wetted Perimeter

1.05 ft
Hydraulic Radius

2.00 in
Top Width

0.67 ft
Critical Depth

0.37 ft
Percent Full

50.0 %
Critical Slope

0.00736 ft/ft
Velocity

3.46 ft/s
Velocity Head

0.19 ft
Specific Energy

0.52 ft
Froude Number

1.19 Maximum Discharge

1.30 ft3/s
Discharge Full

1.21 ft3/s
Slope Full

0.00250 ft/ft
Flow Type
SuperCritical
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Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster [08.11.00.03] 5/10/2012 11:07:44 AM 27 Siemons Company Drive Suite 200 W Watertown, CT 06795 USA +1-203-755-1666 Page 1 of 2

Worksheet for 8" Pipe - @ d/D = 50%
GVF Output Data
Upstream Velocity
Infinity
ft/s
Normal Depth

4.00 in
Critical Depth

0.37 ft
Channel Slope

0.00998
ft/ft
Critical Slope

0.00736
ft/ft
Bentley Systems, Inc. Haestad Methods Solution Center Bentley FlowMaster [08.11.00.03] 5/10/2012 11:07:44 AM 27 Siemons Company Drive Suite 200 W Watertown, CT 06795 USA +1-203-755-1666 Page 2 of 2

�£WRT CITY OF NEWPORT BEACH
3300 Newport Boulevard
z P.O. Box 1768
\ Newport Beach, CA 92658-8915
9Fp,N
(949) 644-3200

NOTICE OF

DETERMINATION
To:

From:
❑x Office of Planning and Research
City of Newport Beach Planning Division
P.O. BOX 3044
3300 Newport Boulevard P.O. Box 1768
Sacramento, CA 95812-3044
Newport Beach, CA 92658-8915
0 County Clerk, County of Orange
Date received for filing at OPR/County Clerk:

Public Services Division
Santa Ana, CA 92702
Subject: Filing of Notice of Determination in compliance with Section 21108 or 21152 of the Public Resources Code.

Project Name: North Newport Center Planned Applicant: Dan Miller, Irvine Company Community Amendment and 550 Newport Center Drive
Related Actions Newport Beach, CA 92660
949 720-2000
State Clearinghouse Number Lead Agency Contact Person Area Code/Telephone/Extension 200601119 Jaime Murillo, Associate Planner 949 / 644-3209 Project Location City of Newport Beach, Orange County, CA. The project site is located in the City of Newport (include county): Beach Statistical Area L1 (Newport Center Statistical), which is commonly known as Newport Center/Fashion Island. This area is a mixed use area bounded on the southwest by East Coast Highway, on the southeast by MacArthur Boulevard, on the northeast by San Joaquin Hills Road, and on the northwest by Jamboree Road. Specifically, the project involves a transfer of development intensity concerning property designated as North Newport Center Block 500, Block 600, San Joaquin Plaza, and a property located immediately west of Fashion Island operated as the Newport Beach Marriott Hotel (Block 900). Block 500 is located at the southeast corner of Santa Rosa Drive at Newport Center Drive. Block 600 is located at the northwestern corner of Newport Center Drive East and Santa Rosa Drive. San Joaquin Plaza is located at the northwest corner of San Clemente Drive and Santa Cruz Drive. Project location map attached.

Project Description: The project consists of an amendment to the North Newport Center Planned Community (NNCPC) Development Plan to increase the unbuilt multi -family residential development allocation from 430 to 524 units. The increase of 94 units would be allocated to the San Joaquin Plaza portion of the NNCPC. Specifically, the proposed Project involves the following actions: (1) convert un-built non-residential development intensity (79 hotel rooms from Block 900) to multi -family residential development intensity (79 multi -family units) and transfer the converted development intensity into the NNCPC; (2) assign 15 residential units currently allowed by the General Plan within the MU-H3 portions of Newport Center to San Joaquin Plaza; (3) amend the NNCPC Development Plan to increase the allowable residential development intensity by a total of 94 units and allocate the 94 units plus the 430 residential units currently allocated to the MU-H3 portions of the NNCPC solely to San Joaquin Plaza; (4) amend the Zoning Implementation and Public Benefit Agreement between the City of Newport Beach and the Irvine Company concerning North Newport Center to vest the revised development intensities and allocations; (5) approve a traffic study for 94 units pursuant to the City's Traffic Phasing Ordinance; and (6) amend the Affordable Housing Implementation Plan (AHIP).

Recorded in official Records, orange county
Tom Daly, County Recorder
11 1II II 11111 11�11 1 1111111111111 11 150.00
*$ R 0 0 0 5 0 0 1 2 4 2$
20128500072312:32 pm 07/25/12
POSTED
JUL 2 5 2012

TOM DALY, CLERK -RECORDER
JUL 2 5 2012

TOM DALY, CLERK -RECORDER
Q„ nGcnry

This is to advise that the City of Newport Beach has approved the above described project on July 24, 2012 and has made the following determinations regarding the above described project: (Date)

1. The City is the [ IN Lead Agency ❑ Responsible Agency] for the project.

2. The project [ ❑ will ® will not] result in new or more severe significant impacts on the environment than previously disclosed in the Final Program EIR (State Clearinghouse No. 200601119) previously prepared and certified by the City of Newport Beach for the General Plan 2006 Update.

3. ❑ An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA. ❑ A Negative Declaration was prepared for this project pursuant to the provisions of CEQA.\

4. ® A Subsequent or Supplemental EIR [ ❑ was ® was not] required and an Addendum to a previously -certified EIR was prepared for this project pursuant to the provisions of CEQA.

5. New or revised mitigation measures [ ❑ were ® were not] made a condition of the approval of the project.

6. A mitigation monitoring program was adopted for the previously approved project. A revised mitigation reporting or monitoring plan [was ® was not] adopted for this project.

7. A Statement of Overriding Considerations was previously adopted for the Final Program EIR (State Clearinghouse No. 200601119). A Statement of Overriding Considerations [ ❑ was © was not] adopted for this project because no new significant impacts were identified.

8. Findings were previously adopted for the Final Program EIR (State Clearinghouse No. 200601119). Findings [ ❑ were ® were not] made pursuant to the provisions of CEQA for this project because no new significant impacts or alternatives were identified.

The EIR Addendum and record of project approval is available for review at the City of Newport Beach Planning Division located at 3300 Newport Boulevard, Newport Beach, CA 92658-8915; 949/644-3200.

July 25, 2012
,Jaime Murillo, Associate Planner Date
JUL 2 5 2012

TOM DALY, CLERK -RE C RDER
DEPUTY
FILED
JUL 25 2012

TOM DALY, CLERK-RECO ER
By. DEPUTY

:m
Block 900
Anomaly 43
(Marriott Hotel)
Plaza

May 2020
Addendum No. 3 to the
City of Newport Beach General Plan 2006 Update EIR, April 2006 (SCH No. 2006011119)
and
Addendum No. 1 to the
General Plan Land Use Element Amendment Final Supplemental EIR, May 2014 (SCH No. 2013101064)
Newport Airport Village
City of Newport Beach
Prepared for:

City of Newport Beach
Contact: James W. Campbell, Deputy Director Community Development Community Development Department
100 Civic Center Drive
Newport Beach, California 92660
949.644.3210
Prepared by:

PlaceWorks
Contact: JoAnn C. Hadfield, Principal
3 MacArthur Place, Suite 1100
Santa Ana, California 92707
714.966.9220
[email protected]
www.placeworks.com

ED PLACEWORKS

NEWPORT AIRPORT VILLAGE EIR ADDENDUM

CITY OF NEWPORT BEACH
Table of Contents
Section Page

1. INTRODUCTION..............................................................................................................................1

1.1 BACKGROUND, PURPOSE, AND SCOPE..................................................................................................1

1.2 ENVIRONMENTAL PROCEDURES............................................................................................................ 2 1.3
CONTENT AND ORGANIZATION OF THIS ADDENDUM............................................................. 4 2. ENVIRONMENTAL
SETTING......................................................................................................... 7 2.1
PROJECT LOCATION....................................................................................................................................... 7 2.2
ENVIRONMENTAL SETTING....................................................................................................................... 7 3. PROJECT DESCRIPTION.............................................................................................................17

3.1 PROJECT BACKGROUND.............................................................................................................................17

3.2 PROPOSED LAND USE..................................................................................................................................21

3.3 PROPOSED ENTITLEMENTS......................................................................................................................27

4. ENVIRONMENTAL CHECKLIST.................................................................................................. 39

4.1 BACKGROUND..................................................................................................................................................39

4.2 ENVIRONMENTAL FACTORS POTENTIALLY AFFECTED...........................................................41

4.3 DETERMINATION (TO BE COMPLETED BY THE LEAD AGENCY).........................................41

4.4 COMPARING CHANGES AND/OR NEW INFORMATION TO PREVIOUS EIRs ................... 42

5. ENVIRONMENTAL ANALYSIS..................................................................................................... 45

5.1 AESTHETICS...................................................................................................................................................... 49

5.2 AGRICULTURE AND FORESTRY RESOURCES................................................................................... 61 5.3
AIR QUALITY..................................................................................................................................................... 65 5.4
BIOLOGICAL RESOURCES.......................................................................................................................... 77 5.5
CULTURAL, RESOURCES............................................................................................................................... 88 5.6
ENERGY...............................................................................................................................................................94

5.7 GEOLOGY AND SOILS................................................................................................................................100

5.8 GREENHOUSE GAS EMISSIONS.............................................................................................................110

5.9 HAZARDS AND HAZARDOUS MATERIALS.......................................................................................116

5.10 HYDROLOGY..................................................................................................................................................132

5.11 LAND USE AND PLANNING....................................................................................................................140

5.12 MINERAL RESOURCES................................................................................................................................155

5.13 NOISE..................................................................................................................................................................158

5.14 POPULATION AND HOUSING................................................................................................................171

5.15 PUBLIC SERVICES..........................................................................................................................................176

5.16 RECREATION..................................................................................................................................................184

5.17 TRANSPORTATION.......................................................................................................................................188

5.18 TRIBAL CULTURAL RESOURCES............................................................................................................201

5.19 UTILITIES AND SERVICE SYSTEMS...................................................................................................... 206

5.20 WILDFIRE..........................................................................................................................................................221

6. SUMMARY...................................................................................................................................225

7. REFERENCES.............................................................................................................................227

APPENDICES
Appendix A Newport Village Planned Community Development Plan Appendix B Newport Village Trip Making Assessment
May 2020 Page i

NEWPORT AIRPORT VILLAGE EIR ADDENDUM

CITY OF NEWPORT BEACH
Table of Contents
List of Figures
Figure1
Regional Location................................................................................................................................. 9 Figure2
Local Vicinity.......................................................................................................................................11 Figure 3
Aerial Photograph, Project Site........................................................................................................13 Figure 4
Aerial Photograph, Airport Area......................................................................................................15 Figure5
LU22 Airport Area.............................................................................................................................19 Figure 6
Airport Area Proposed Changes, 2014 LUE Amendment..........................................................23 Figure7
Concept Plan....................................................................................................................................... 25 Figure8
PC District Boundary......................................................................................................................... 33 Figure9
Planning Areas 1 & 2.......................................................................................................................... 35 Figure 10
Conceptual Architecture....................................................................................................................37 Figure 11
Height Restrictions per Federal Air Regulations, Part 77............................................................ 53 Figure 12
Airport Area Safety Zones................................................................................................................ 55 Figure 13
2006 General Plan Biological Resources......................................................................................... 79 Figure 14
Environmental Study Areas(ESAs)................................................................................................. 81 Figure 15
FAA Part 77 Height Restrictions — 2014 LUE Amendment Airport Area ChangeAreas.....................................................................................................................................121 Figure 16
2008 AELUP JWA Noise Exposure at the Project Site.............................................................165 Page ii PlaceWorks

NEWPORT AIRPORT VILLAGE EIR ADDENDUM

CITY OF NEWPORT BEACH
Table of Contents
List of Tables
Table 1
Proposed Area 4A Land Use Changes, LUE Amendment (2014)............................................. 21 Table 2
Permitted Uses By Planning Area.................................................................................................... 28 Table 3
Allowable Land Use Comparison: Proposed Project, 2006 General Plan and 2014 LUE Amendment for the Project Site...................................................................................47 Table 4
Land Use Compatibility: John Wayne Airport Safety Zones ....................................................... 57 Table 5
Existing Maximum Permitted Building Heights..........................................................................119 Table 6
GeoTracker and RCRA Info Sites.................................................................................................126 Table 7
Newport Beach General Plan Consistency Analysis...................................................................142 Table 8
City of Newport Beach Incremental Noise Impact Criteria for Noise -Sensitive Uses(dBA CNEL)............................................................................................................................160 Table 9
Projected Jobs -Housing Ratio........................................................................................................172 Table 10
Projected Student Population in SAUSD.....................................................................................181 Table 11
Project Trip Generation — LUE Amendment Airport Area Change Areas ............................189 Table 12
2006 General Plan Update Traffic Analysis — Land Use Comparison to ProposedProject...............................................................................................................................191 Table 13
Project Site Trip Generation — 2006 GPA vs Proposed Project...............................................192 Table 14
Intersection Level of Service — 2006 GPU vs Proposed Project..............................................193 Table 15
2014 LUE Amendment Traffic Analysis — Land Use Comparison to Proposed Project.................................................................................................................................................194 Table 16
Project Site Trip Generation — 2014 LUE Amendment vs Proposed Project ........................194 Table 17
Intersection Level of Service — 2014 LUE Amendment vs Proposed Project .......................195 Table 18
Net Increase in Wastewater Generation.......................................................................................212 Table 19
Net Increase in Water Demand......................................................................................................214 Table 20
Net Increase in Solid Waste Generation.......................................................................................216 Table 21
Annual Net Increase in Electricity Use — Project Site................................................................218 Table 22
Annual Net Increase in Natural Gas Use......................................................................................219 May 2020 Page iii

NEWPORT AIRPORT VILLAGE EIR ADDENDUM

CITY OF NEWPORT BEACH
Table of Contents
Tbis page intentionally left blank.

Page iv PlaceWorks

1. Introduction

1.1 BACKGROUND, PURPOSE, AND SCOPE
This document is an Addendum to the following previously certified City of Newport Beach Environmental Impact Reports (EIRs):
■ General Plan 2006 Update Final Environmental Impact Report, April 2006 (State Clearinghouse No. 2006011119), as amended by two subsequent GPEIR Addendums:
• Addendum to the City of Newport Beach General Plan 2006 Update Final Environmental Impact Report, November 2007.
• Addendum No. 2 to the City of Newport Beach General Plan 2006 Update Final Environmental Impact Report, June 12, 2015.
■ General Plan Land Use Element (LUE) Amendment, Final Supplemental Environmental Impact Report, March 2014 (State Clearinghouse No. 201310164).

The comprehensive 2006 General Plan Update EIR analyzed the potential impacts of a citywide comprehensive update to the land use plan, and goals and policies for 10 general plan elements. The Supplemental DEIR in 2014 focused on a General Plan Land Use Element Amendment proposing reduced or increased development capacities in various areas of the City. Both EIRs encompass proposed land uses for the Airport Area community and include the project site that is the subject of this Addendum.

The subject property is an approximately 16.46-acre site located west of MacArthur Boulevard, south of Campus Drive, north of Birch Street, and about 550 north of Dove Street. The site currently allows 358,498 square feet of commercial uses and is developed with a mix of office, retail, restaurant, and car rental facilities.

The 2006 GPU EIR and 2014 LUE Amendment Supplemental EIR (SEIR) designated the site for the following uses:
■ 2006 GPU EIR: Airport Office and Supporting Uses (AO). The designation would allow up to 358,498 square feet of commercial uses based on the allowable 0.5 floor area ratio (FAR). The AO land use designation is intended to allows uses that support or benefit from operations of the adjoining John Wayne Airport. These may include professional offices; aviation; retail; automobile rental, sales, and service; hotels and ancillary retail, restaurant, and service uses. This designation specifies an FAR of 0.5, except for warehousing, which may be developed at an FAR of 0.75.
■ 2014 LUE Amendment SEIR: Mixed Use -Horizontal 2 (MU-142). The SEIR assesses the potential development of an additional 238,077 additional square feet of office space and 329 new dwelling units (plus 115 density bonus units) for the site identified as "Saunders Properties." In the 2014 LUE May 2020 Page 1

NEWPORT AIRPORT VILLAGE EIR ADDENDUM

CITY OF NEWPORT BEACH

1. Introduction
Amendment SEIR, the Saunders Properties site encompassed approximately 26.24 acres. (The proposed project occupies 16.46 acres of that area.) The MU-H2 designation applies to properties located in the Airport Area. It provides for a horizontal intermixing of uses that may include regional commercial office, multifamily residential, vertical mixed -use building, industrial, hotel rooms, and ancillary neighborhood commercial uses. A maximum of 2,200 residential units are allowed within this designation (exclusive of density bonus units) as replacement of existing office, retail, and/or industrial uses, at a maximum density of 50 units per adjusted gross acre, of which a maximum of 550 units may be developed as infill.

The proposed conceptual plan and Newport Airport Village Planned Community Development Plan (PCDP)—referred to as the proposed project in this Addendum —is based on the development of 329 residential units, additional density bonus units, and a mix of 297,572 square feet of commercial uses.

Consistent with chapter 20.32 of the Newport Beach Municipal Code (NBMC), a density bonus will be permitted if the project includes affordable housing units. The NBMC would allow a maximum density bonus of 35 percent of residential units (115 additional units), resulting in up to 444 dwelling units for the project.

The actual number of density bonus units will be determined at the time that a development project is proposed.

At this time, only a conceptual development plan has been prepared as part of the modified project (the PCDP).

This Addendum, therefore, addresses the potential environmental impacts of a maximum impact scenario assuming 444 dwelling units and a mix of 297,572 square feet of commercial. The incremental impacts of the project are evaluated relative to the two certified EIRs described above. This Addendum substantiates that no supplemental or subsequent EIR is required pursuant to Section 21166 of the California Environmental Quality Act (CEQA) and Sections 15162 and 15164 of the CEQA Guidelines for the entitlements proposed (zone change, general plan amendment, planned community development plan, and development agreement). In comparison to the 2006 and 2014 EIRs, the project would not result in new or substantially more severe environmental impacts. Further, since the 2006 and 2014 EIRs were certified, there has been no substantial change with respect to the circumstances under which the project is being undertaken that would require major revisions to the EIRs. Any future discretionary entitlements required to develop the project site (for example, a tentative tract map and site development review) would be subject to further environmental review under CEQA.

1.2 ENVIRONMENTAL PROCEDURES

1.2.1 CEQA Requirements
According to Section 21166 of CEQA and Section 15162 of the State CEQA Guidelines, when an EIR has been certified or a negative declaration adopted for a project, no subsequent EIR or negative declaration shall be prepared for the project unless the lead agency determines that one or more of the following conditions are met:

1. Substantial project changes are proposed that will require major revisions of the previous EIR or negative declaration due to the involvement of new significant environmental effects or a substantial increase in the severity of previously identified significant effects.

Page 2 ends

Newport Beach City CouncilApril 9, 2024

Newport Beach City Council
April 9, 2024