HomeMy WebLinkAbout04.d. Receive the Concord Community Reuse Update Page 1 of 41
Item 4.d.
Central Contra Costa Sanitary District
April 25, 2018
TO: REAL ESTATE, ENVIRONMENTAL AND PLANNING COMMITTEE
FROM: DANEA GEMMELL, PLANNING AND DEVELOPMENT SERVICES DIVISION
MANAGER
REVIEWED BY: JEAN-MARC PETIT, DIRECTOR OF ENGINEERING AND TECHNICAL
SERVICES
ROGER S. BAILEY, GENERAL MANAGER
SUBJECT: RECEIVE THE CONCORD COMMUNITY REUSE UPDATE
The City of Concord has been working on the Specific Plan for the Concord Community Reuse. A joint
meeting of the City Council and Planning Commission was held on February 5, 2018 to provide an
overview of the preliminary infrastructure systems for the project and solicit feedback from the governing
bodies and the public for inclusion in the Specific Plan. The attachment is an excerpt from the Concord
staff report from that meeting which discussed the wastewater and recycled water infrastructure systems.
The pertinent areas of the staff report are highlighted in yellow on pages 3 and 4 and in Attachment 4
"Infrastructure Summary Memorandum" from Carlson Barbee Gibson (CBG), the engineer for Lennar-
Five Point.
Staff also met with Guy Bjerke, the Director of Community Reuse Project- City of Concord, and his team
on February 6, 2018 with Contra Costa Water District and Lennar-Five Point to discuss the wastewater,
potable water, and recycled water alternatives. A second smaller meeting was held on April 4, 2018 with
Guy Bjerke to discuss next steps, service area, and the two wastewater alignments. The schedule seems
to have moved slightly, but remains on track to start infrastructure construction in late 2020. An
updated schedule including the Environmental Impact Report (EI R) is shown below:
June 2018 Initial Studyfor Specific Plan released
Sept. 2018 Draft Specific Plan issued for review
Feb. 2019 Present E I R to Planning Commission
Spring 2019 Conveyance of first parcels of land to Concord Local Reuse
Authority
Summer 2019 Present EI R to City Council
Staff looks forward to reviewing this information with you at the April 25, 2018 R E E P Committee meeting.
April 25, 2018 REEP Committee Meeting Agenda Packet- Page 42 of 84
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GOAL THREE: Be a Fiscally Sound and Effective Water Sector Utility
Strategy 1 - Conduct Long-Range Financial Planning
GOAL SIX. Embrace Technology, Innovation and Environmental Sustainability
Strategy 1 -Augment the Region's Water Supply
ATTACHMENTS:
1. Excerpt of February 5, 2018 Staff Report to City Council and Planning Commission
April 25, 2018 REEP Committee Meeting Agenda Packet- Page 43 of 84
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Staff
Report
Date: February 5, 2018
To: City Council and Planning Commission
From: Guy Bjerke, Director, Community Reuse Planning
Prepared by: Joan Ryan, Community Reuse Area Planner
Joan.ryan cityofconcord.org
(925) 671-3370
Subject: Joint Study Session providing an overview of preliminary
infrastructure and utility systems for the Concord Reuse
Project Specific Plan and a discussion of smart cities and
Sustainability
CEQA: This item seeks preliminary review and input on a
component of the anticipated Concord Reuse Project Specific
Plan, which will be analyzed by a second-tier environmental
impact report.
Report in Brief
The study session on the Concord Reuse Project (CRP) Specific Plan this evening is
being held to accomplish the following:
1) Provide the Planning Commission, the City Council and the public with
information regarding the Area Plan's vision regarding utility systems, and the
initial thinking regarding smart cities initiatives and sustainability components;
2) Provide a forum for the Planning Commission and City Council and the public to
give feedback on the information shared.
This agenda item seeks preliminary review and input on the utility system, smart cities,
and sustainability components of the anticipated Specific Plan document. This input
does not commit the City to a definite course of action on the Specific Plan; rather, the
Planning Commission/City Council and public input will help shape the Infrastructure
Master Plan that will be defined within the Specific Plan and analyzed within the
second-tier environmental documents. Final decisions regarding the Specific Plan will
not take place until the Specific Plan is complete and subsequent project-level
environmental review is completed.
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Recommended Action
The Planning Commission and City Council are invited to provide direction and
feedback regarding the overview of the preliminary infrastructure and utility systems for
the Concord Reuse Project, and the approach toward how to incorporate various
elements of smart cities into the overall Specific Plan along with the integration of
sustainability factors in order to achieve a world class project. The Commission's and
Council's input will inform the continued drafting the Specific Plan and environmental
documents.
Background
The Area Plan was deliberately planned to create a sustainable community. The
design of utilities is particularly important to achieving the Plan's greenhouse gas
reduction goals. The Area Plan (Book 1) Utilities Summary has been included
(Attachment 1) for the Planning Commission/City Council, summarizing key
initiatives with respect to transforming the CRP area from a largely undeveloped
site to a sustainable mixed-use community.
Book 2 of the Area Plan, adopted in 2012, (Attachment 2) emphasized the
potential to substantially reduce future emissions by focusing on renewable energy
and reducing the energy required to transport water and wastewater. The Plan
addressed the potential to conserve natural resources through provisions for
recycling, composting, recycled water use, and the efficient delivery of other
community services (Chapter 5 of Book 2), by including a number of principles for
development. They include the following principles:
General Utilities: U-1 - Construct and operate utility systems which enable
development of the CRP area as a sustainable community with an outstanding
quality of life.
Water Service: U-2 - Provide a safe and reliable water supply to the CRP Area.
Wastewater Service: U-3 - Ensure public health and safety by providing
effective wastewater collection and treatment services to the CRP area.
Recycled Water: U-4 - Reduce the use of potable water for non-potable
purposes by providing a recycled water system serving the CRP area.
Storm water Management - U-5: Protect the CRP area from the adverse impact
of water runoff.
Solid Waste Management: U-6 - Expand the City's solid waste reduction and
recycling efforts to the CRP area as development occurs.
Energy Infrastructure: U-7- Provide reliable energy services to the CRP area
while supporting efforts to attain high levels of energy efficiently, conservation,
and renewable supply.
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Telecommunications: U-8 - Provide telecommunication services to the CRP
area that support economic development and quality of life goals for the
community.
Book 3 of the Area Plan (Attachment 3) includes climate action strategies to
minimize the energy consumption and greenhouse gas emissions associated with
utility systems. Chapter 3 (of Book 3) includes building and site energy efficiency,
waste reduction and water efficiency principles and policies.
Developer's Preliminary Infrastructure and Utility Plans
The master developer for the CRP has retained the services of Carlson, Barbee &
Gibson, Inc. (CBG) for the Specific Plan project. The developer provided an
overview of their preliminary infrastructure and utility plans to the CAC on
December 19 and will provide a similar presentation to the Planning Commission
and City Council on Feb. 5. The master developer has had preliminary meetings
with each of the local and regional agencies responsible for providing utility
services. These meetings will continue through 2018 as the Infrastructure Master
Plan is firmed up for incorporation into the Draft Specific Plan.
Preliminary Infrastructure Systems
The Infrastructure Master Plan will establish a plan for infrastructure for the entire CRP
development site at build-out. The plan is being prepared by the Master Developer, in
conjunction with the City, to ensure that infrastructure is designed to support
subsequent development phases. The plan will specify and size sufficient infrastructure
and utility systems to serve the entire site at build-out, thus ensuring that no "rebuilding"
of infrastructure will be necessary.
The summary below is based on the CRP Land Use Plan, dated November 7, 2017.
The preliminary infrastructure systems are described in the technical memorandum
prepared by CBG, updated on December 12, 2017 (Attachment 4). Maps for each of
the systems have been included as attachments to the memo.
Sanitary Sewer
The CRP area is located within both the Central Contra Costa Sanitary District
(CCCSD) and City of Concord service areas. Both service areas collect and convey
wastewater to the wastewater treatment plant owned and maintained by CCCSD,
located 3 miles northwest of the CRP. CCCSD has indicated that their wastewater
treatment plant currently has adequate available treatment capacity to accommodate
the build-out of the CRP. The attached technical memo (Attachment 4, Figures 1-3)
provides further detail regarding existing and proposed collection facilities. A number of
wastewater collection scenarios are under review and will be evaluated by the City and
CCCSD.
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Potable Water
The CRP area is located within the Contra Costa Water District (CCWD) which provides
potable water service to the City, upon treatment at the Bollman Water Treatment Plant,
approximately 1.5 miles northwest of the CRP. The anticipated potable water demand
from the proposed build-out of the CRP is approximately 5.6 MGD. CCWD's Master
Plan indicates that they have adequate water supply and treatment capacity for the
CRP area. CCWD also prepared a water supply assessment in 2010 that confirmed
CCWD's commitment and capacity to serve the CRP. However, development of the
project would require new storage reservoirs, currently planned to occur in phases with
two 3.3 MGD water tanks on the hills within the Concord Hills regional park. A system
of water distribution pipelines would be constructed throughout the CRP area. The
proposed water system would be built consistent with the CCWD Master Plan, see
Attachment 4 (Figure 6).
Recycled Water
CCCSD's current recycled water capacity is anticipated to be able to provide recycled
water to the first phase of development of the CRP. CCCSD is developing a plan to
expand their capacity of recycled water to be able to serve the entire build-out of the
CRP as well as other recycled water uses within the CCCSD service area. CCWD
would own and operate the recycled water distribution system and storage facilities, and
CCCSD would provide the supply, see Attachment 4 (Figure 7).
Storm water Management
The CRP area is located in two different watersheds, Mt Diablo Creek and Holbrook
Channel. Mt. Diablo Creek originates south of the CRP area and flows northwesterly
through the site and ultimately discharges into Suisun Bay. The Holbrook Channel
begins near Willow Pass and Olivera Roads and flows northwesterly through the
Holbrook neighborhood across Port Chicago Highway and Highway 242, and ultimately
discharges into Walnut Creek, as shown in Attachment 4 (Figure 4).
There are minimal existing drainage facilities within the site. The proposed stormwater
management system will include an integrated system consisting of the restoration of
Mt. Diablo Creek, 150 feet on each side, providing for increased capacity in a tiered
floodway, together with off-line detention basins, habitat restoration and opportunities
for walking and biking trails. In addition, a conventional storm drain system, detention
basins, and water quality treatment measures using best management practices
(BMP's) will be designed, as illustrated in the schematic in Attachment 4 (Figure 5). .
The detention basins and BMP's will be constructed as attractive landscaped features.
Electrical and Gas
Pacific Gas & Electric Company would provide electric and gas services to the site.
A new 230/21 kilovolt (kV) substation will be required to serve demand at the site,
beyond the initial 10 mega-volt amperes (MVA). The proposed 5-acre substation
site is located northwest of Willow Pass Road and Delta Road. Transmission of
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electricity to the substation would occur from the east, beyond the terminus of Avila
Road. A new electrical distribution network would emanate from the substation.
Proposed natural gas distribution will occur via the existing natural gas
transmission line north of Highway 4. Local PG&E transmission facilities are
projected to have adequate capacity to support the buildout of the CRP.
It should be noted that in spring 2018 within the City of Concord, Marin Clean Energy
(MCE) will become the primary electricity generator, similar to Marin and Napa
Counties, and other local cities including the Richmond, San Pablo, EI Cerrito, Benicia,
Lafayette, and Walnut Creek. PB&E will continue to maintain the power lines, deliver
electricity and administer billing services. However, electricity customers within the City
will begin purchasing a minimum of 50% renewable energy from MCE at competitive
rates, unless they choose to opt out or opt up to MCE's 100% renewable energy option,
starting February 2018.
Telecommunications
Telecommunication service is provided to the project site from AT&T and Comcast,
which do not anticipate issues providing service to meet demands for the CRP
area, given proximity of existing facilities, which would be extended throughout the
CRP area. This would include fiber optic lines and state-of-the art
telecommunications infrastructure.
Sustainability Considerations
The developer is currently considering a range of potential strategies to minimize
energy consumption and greenhouse gas emissions associated with utility
systems. The master developer plans to meet and/or exceed the goals and
policies within the CRP Area Plan and the City's Climate Action Plan and is
currently evaluating sustainable strategies to reduce greenhouse gases, minimize
water demand, achieve waste reduction, and reduce energy demand.
Analysis
The City's Engineering Division and Public Works Department have been providing
an independent review of the infrastructure and utility systems for incorporation
into the Specific Plan. The City hosted a recent Technical Advisory Committee
meeting on December 15, 2017, to update the various utility and service providers
on the project status, timeline, and share preliminary infrastructure plans. The
project team will continue to coordinate with the providers throughout 2018, during
the preparation of the Specific Plan and throughout the preparation of the
environmental documents. This includes Contra Costa Water District, Central
Contra Costa Sanitary District, Pacific Gas & Electric, County Flood Control
District, and Mt. Diablo Resource Recovery (formerly Concord Disposal Service).
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December 19 CAC Meeting
The CAC discussed issues regarding the preliminary utility systems at their regularly
scheduled December meeting and some of the issues raised included the following
issues as potential areas of concern:
• Treatment of retention basins and safety
• Whether gray water would be used for homes and businesses.
• What the percentage of recycled water use would be at the site.
• How the storage of potable water might be handled.
• Maintenance of the retention basins
• Other considerations, for example potential solar farm, as supply resources for
electricity.
Smart Cities and Sustainability
The following section is intended to provide the Planning Commission and City Council
with a broader understanding of the concept of "Smart Cities" and sustainability,
including providing:
1) A summary of the earlier Area Plan with respect to how emerging technologies
were considered, as background information;
2) Ways in which to consider how the CRP Specific Plan can be a state-of-the-art
community by anticipating current trends and technologies;
3) An understanding of what is occurring within other "Smart Cities" currently
under development throughout the nation; and
4) The master developer's current thinking as to how the Specific Plan can
advance Smart Cities concepts.
The timeline horizon of the development of the Concord Reuse Project (CRP) Specific
Plan area is anticipated to be approximately 2022-2052, with each of the three
development phases anticipated to be roughly 8-10 years, depending upon the market
economics and housing demand over the duration of the project. Due to the lengthy
time horizon, it is important for the project to anticipate the future, be resilient, flexible,
and promote emerging trends and technologies. The 2012 Area Plan provided only
limited guidance in this regard, and given that construction for the CRP Specific Plan
area is anticipated to begin in 2022, an examination of emerging technologies and
trends is an important factor in not only attracting business and residents of the future,
but in generating the economic vitality for the project, desired by the City.
The Area Plan began to touch on this desire to embrace emerging technologies within
Book 2 (Technical Chapters) of the CRP Area Plan (2012) noting that new technologies
can improve mobility while supporting the sustainability goals of the Area Plan. Book 2
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stated that the City would assist in providing the infrastructure needed to accommodate
alternative fuel vehicles, including electric cars. And would support the design of roads,
traffic signals, transit systems, and other transportation facilities in a way that facilitates
the use of emerging technologies for travel on the site and to nearby communities.
Principle T-2 stated "Use emerging technologies and services to increase transportation
system efficiency, such as neighborhood electric vehicles and infrastructure for
alternative fueling and powering." The three policies listed focused on alternative fueling
stations, promoting electric vehicles, and supporting the use of transit vehicles and
shared vehicles that use non-polluting technologies.
Since 2012, technology has of course continued to march forward, and possibilities for
The Specific Plan document will include a number of land use elements and many
design aspects that the Area Plan left for future planning and flexibility. Some of these
areas for development include those highly impacted by emerging technologies, even
over the short-term; however, there is certainty that the rapid pace of change will
influence patterns of activity and characteristics of development in the following topics:
• Parking, mobility and transportation;
• Infrastructure for sustainability and resilience;
• Smart Cities;
• Changing workplaces; and
• Changing retail environments.
City staff believes that, in the midst of such changing environments, it is critical to the
evolution of the CRP Specific Plan to consider methods and means by which to "future-
proof" the Plan in order to anticipate how current trends and technologies may change
the life of existing as well as new residents within Concord. The concept of"future-
proofing" refers to the process of anticipating the future and developing methods of
minimizing the effects of shocks and the stresses of future events. Such concepts could
include the creation of smart cities in which connected heating systems better control
energy use and/or connected traffic lights that are better able to manage rush hour.
Future proofing can also include providing the flexibility to allow for future unknowns.
Attachment 5 includes a memo regarding future proofing of the Specific Plan, which is
summarized as follows.
Parking, Mobility and Transportation
As autonomous vehicle technology becomes mainstream, and as networks for non-
automobile modes are completed on-site, the necessity for parking is expected to
decline over time. The impact of this decline of the need for parking on land planning,
demands flexibility into the future. Attachment 6 provides an article of one architect
helping cities to visualize the future in this regard. In addition, a continuing increase in
shared mobility models, rather than individual ownership models are expected to reduce
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the need for parking further. As a result, the amount of parking should be minimized and
designed to be adapted to other uses in the future as needed. Specific strategies to
consider for the Specific Plan are included in Attachment 5.
Once Autonomous Vehicles (AVs) comprise a growing share of the vehicle fleet, the
design of streets will likely change to reflect new travel patterns. The City is a partner in
the Contra Costa Transportation Authority's (CCTA) GoMentum Station which currently
uses the Base for the testing of autonomous and connected vehicle technologies. The
CRP Land Use Plan has provided appropriate land use districts, in coordination with the
Master Developer, to allow for the possibility of a permanent test facility for GoMentum
Station. In addition, electrical vehicles are growing as a portion of the vehicle fleet both
locally and nationwide. EVs are likely to become the prevailing vehicle type over the
course of the project build-out, due to the State's push to reduce greenhouse gas
(GHG) emissions. Specific strategies to consider for the Specific Plan, as AVs and EVs
evolve into greater prominence, are included in Attachment 5:
Frequent, high capacity transit service will remain an important piece of a successful
mobility system for the CRP area in the future. High quality transit service connecting
the villages to BART will also be critical to reducing auto trips and emissions. The
master developer has indicated that a shuttle service would be provided for the project.
In addition to traditional transit service, smaller and more flexible transit and mobility
options are also likely to be part of the mobility mix. Services such as Lyft Line, Uber
POOL, and Chariot are offering feasible, on-demand services that offer greater flexibility
and speed than traditional bus transit. The relationship between emerging modes and
traditional transit is rapidly evolving; the City should focus on accessible, equitable, and
high-quality mobility services that will likely include all public and private operators.
In addition, City staff, consistent with the Area Plan, supports design of safe and
comfortable facilities to promote increased walking and bicycling, as an important
component to the overall transportation system. Specific strategies to consider for the
Specific Plan include ensuring the incorporation of a connected bicycle network and
safe pedestrian-friendly streets and reserving sufficient right-of-way to provide facilities
that meet national best practices, such as NACTO (National Association of City
Transportation Officials).
Infrastructure for Sustainability and Resilience
Infrastructure built to support the CRP development should take advantage of the latest
advances in district infrastructure systems to improve efficiency and reduce resource
use. Specific strategies to consider for the Specific Plan are shown in Attachment 5.
Smart Cities/Smart Homes
A "Smart City" refers to an environment where "digital technology and intelligent design
have been harnessed to create smart, sustainable cities with high quality living and high
quality jobs." For instance, in practice a Smart City applies technology to all areas of the
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built environment and infrastructure to improve the function of the city. Sensors can be
used to monitor and analyze conditions in real time, enabling the city to respond to
problems, adjust services or raise alerts to improve the function of the city, support
economic vitality, and improve quality of life. Specific strategies to consider for the
Specific Plan are included in more detail in Attachment 5, and include:
• Identifying the necessary infrastructure to enable use of real time technology;
• Incorporating a Smart City or digital master plan (Attachment 7); and
• Planning for district infrastructure systems to improve efficiency.
Smart City developments
There are a wide variety of definitions for Smart Cities, but generally Smart City
developments are viewed as those that use information and communication
technologies to increase operational efficiency. Some definitions go further in noting that
Smart Cities share information with the public in order to improve the quality of
government services and achieve a high quality of life for residents. Attachment 8
provides a recent article that discusses the term Smart Cities in more detail.
Smart City projects have gained momentum over the last decade, as a variety of digital
transformation initiatives have emerged to provide citizens with improved services by
achieving significant outcomes. By one metric, Los Angeles, New York City and
Chicago are leading the charge (Attachment 9), based on an evaluation of cities which
looked at various metrics such as deployment of LED streetlights, smart meters,
renewable energy, electric mobility, smart parking, mobility-as-a-service (MaaS),
vehicle-to-everything (V2X) technologies, smart waste, and first responder
communications. In addition, the following cities have made the news recently as they
forge ahead on their own "Smart City" initiatives:
• Columbus, Ohio - Now, with 40 million dollars in funding from the U.S.
Department of Transportation, another 10 million dollars from Vulcan Inc., and
an additional 90 million from private partners, Columbus (pop. 860,090) is
poised to roll out a variety of transportation projects, that may serve as the
blueprint for the future of urban planning. . Columbus is focusing on how
people are getting around, with a special focus on a reduction in accidents.
Such projects include a vehicle connectivity system, smart street lighting, and
a pedestrian collision-avoidance system for transit vehicles. In addition, a
camera-oriented collision avoidance system will alert city bus drivers to
pedestrians and pets.
• Toronto, Canada - Sidewalk Labs (owned by Google's parent company
Alphabet) will invest 50 million dollars to create the new city in the Quayside
area, on the eastern waterfront, of Toronto. The project aims to become a
working laboratory for a range of smart technology that includes efficient
transportation with dedicated lanes for self-driving cars, real-time parking
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information and navigation and buses that are redirected away from
bottlenecks. In addition, flexible building designs are intended to reduce the
cost of housing and retail space. Further, energy-efficient building, clever
recycling and the right infrastructure for green vehicles could create a climate-
positive neighborhood.
• Greenville, South Carolina - The South Carolina Technology and Aviation
Center (SCTAC) has announced plans for a new 243-acre technology
business park in Greenville to develop smart technology for cities that could
bring more than 100 new tech companies and up to 5,000 new jobs to the
area to collaborate with other companies in the development, testing and
promotion of smart technologies. SCTAC grew from a public-private
partnership that purchased the land when Donaldson Air Force base closed in
1963, and has served as an economic driver to the area in the past, with
nearly 100 companies that include 3M, Lockheed-Martin and Michelin.
Technologies expected to be developed and tested at the facility include
autonomous vehicles and smart crosswalks. The collaborative environment
will allow companies to successfully integrate and test smart city projects.
• Kansas City - has invested 3.8 million dollars into expanding the "smart city
corridor," a 2-mile-long stretch that also hosts the city's KC Streetcar, a Wi-Fi
connected tram that transports passengers from different neighborhoods to
downtown. Along the route, residents can travel for free and connect to Wi-Fi
through project partner Cisco's Smart + Connected Communities platform, a
network that facilitates an open Wi-Fi network for residents and 25 interactive
kiosks along the streetcar line, which grants access to city services, local
business information, public digital art and entertainment. Last year Bob
Bennett, Kansas City's chief innovation officer, said the kiosks alone have
generated $200,000 in revenue for the city.
• Charlotte, North Carolina — In Charlotte, the Verizon's Smart City Solutions
are being utilized through the Envision Charlotte scheme, a project designed
to help businesses in the city to reduce greenhouse gases and increase
energy efficiency through Internet of Things (IoT) technology. The project,
running from July 2015 to July 2018, utilizes interactive kiosks and monitors
placed strategically around the city that gather information relating to energy
usage. Envision Charlotte has already achieved an energy reduction level of
8.4%, saving businesses an estimated 10 million dollars. Over 70 buildings,
including the Bank of America Plaza, City Hall, the County Courthouse and
Federal Reserve Bank, host these systems, which monitor energy use and
provide statistics in real time through 4G LTE.
• Belmont (West of Phoenix), Arizona — Most recently, a subsidiary of Bill
Gates' investment firm Cascade Investment LLC, bought 24,800 acres, 40
miles west of Phoenix, with plans to build a "smart city". Mt. Lemmon
Holdings, the subsidiary, has committed 80 million dollars for the
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development, which will feature high-speed public Wi-Fi, self-driving cars, and
high-tech manufacturing facilities, according to Belmont Partners, which owns
the property.
Changing workplaces and retail environments
How Americans work is changing, and as these patterns evolve work spaces and travel
patterns in Concord may also change. Shared and multifunctional work spaces are
growing in popularity. In addition, the way Americans shop is vastly different. As online
shopping grows, the traditional brick and mortar stores may evolve to function more as
showrooms and/or activity destinations. Specific strategies to consider for the Specific
Plan are included in Attachment 5.
Master Developer's Current Thinking to Advance Smart City Concepts
The Master Developer is focused on a variety of components in terms of addressing
Smart City Concepts. These include: 1) Smart Energy - in order to lower the carbon foot
print of the project, including the potential use of geothermal energy (Attachment 10); 2)
Smart Communication - to enable new technologies designing capacity and capability
that is future proofed and bring smart city benefits into the home; 3) Smart mobility — to
manage on-site congestion and increase convenience for residents and workers; and 4)
Smart Community— Ensuring safety and connecting people with their community and
services. Their presentation will provide a variety of goals and approaches within each
of these categories toward promoting the Concord Reuse Project as a world class
community.
In addition, the master developer will be providing a presentation in terms of how
sustainability can be promoted through the implementation of Smart Cities. The desire
is to leverage useful technologies to create a sustainable city by making it possible to
reduce resource consumption, while being resilient to long-term changes. This can
include a number of components including building design, modes of travel, sustainable
energy systems, and the ability to monitor a variety of systems including traffic, with the
overall desire to improve the quality of life for the City's residents.
A number of development trends are rapidly evolving, and thus the design of the public
realm will need to respond to these evolving technological advances in parking, mobility,
transportation and energy. At the same time, the private realm will also need to be
posed for flexibility into the future, as the Reuse Project will likely span over 30 years.
The feedback from the Planning Commission and City Council will help shape the policy
language within the Specific Plan document.
Financial Impact
No General Funds will be required for this project. Preparation of the Draft Specific
Plan is being funded by the Master Developer for the project, and City staff time and
consultants are being covered, based on the agreed term sheet through a
reimbursement agreement with the Master Developer.
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Specific Plan Environmental Determination
The Specific Plan involves the implementation of the Area Plan and, therefore, the
CEQA process will be informed by the program-level EIR and addendum previously
prepared for the Area Plan. An initial study is currently being prepared by SWCA
Environmental Consultants, the City's CEQA consultant, which will lead to a project-
level Specific Plan EIR to provide a thorough and independent review of the Specific
Plan. SWCA will continue preparation of environmental documents during 2018.
This agenda item seeks preliminary review and input on a component of the anticipated
Specific Plan, which does not commit the City to a definite course of action on the
Specific Plan; rather, it will help shape the project that will be analyzed by the second-
tier environmental review and the scope of analysis. Final decisions regarding the
Specific Plan will not take place until the subsequent project-level environmental review
is completed.
Public Contact
The Agenda was posted. The City Council Study Session was announced on the
Concord Reuse Project website and notification went out to those who have signed up
for notifications on the Concord Reuse Project website. The City Council study session
was also announced at the December 19, 2017, and January 18, 2018, CAC meetings.
Attachments
1. Area Plan Utilities Summary
2. Book 2 of Area Plan — Utilities Overview and Framework
3. Book 3 of Area Plan — Chapter 3, pages 26-30
4. Infrastructure Summary — Utilities, prepared by CBG, updated Dec. 12, 2017
5. Future Proofing Memo, ARUP, dated October 31, 2017
6. Parking garages are getting a second life as places for people, April 2017
7. Driving the Smart, Just City, Planning Magazine, dated December 2017
8. Just What IS a Smart City, Computerworld, October 1, 2015.
9. Exploring top Smart City projects in the United States, Telecom Tech. News,
September 2017
10.Welcome to Steam-Powered Suburbs, CityLab, November 2017
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mi.jil
BookTwo of the Area Plan includes Transforming the CRP area from a former military base into a sustainable
a Utilities Chapter that covers the mixed-use community will require substantial investment in new utili-
following topics: ties. The design of these utilities is particularly important to achieving the
Plan's climate action goals. Water,wastewater,energy,and other utility
• Utility Framework systems will be planned to minimize greenhouse gas emissions, preserve
• Water environmental quality,and conserve natural resources.
• Wastewater
• Recycled water
• Stormwater Management Managing Urban Runoff Creating the Capacity
• Solid Waste Management Planning standards will minimize for Growth
stormwater runoff by limiting im- Among the major infrastructure
• Energy pervious surface coverage and re- components to be constructed are:
• Telecommunications quiring facilities to retain stormwa-
ter on-site. Some of the measures Anew water distribution system,
that can be used to control runoff to be operated by the Contra
include permeable pavement, Costa Water District (CCWD)
waterDual natural stormwater management in . New sewer collection lines,which
delivery "green street"rights of way,green may be operated by the City of
systems to provide roofs,cisterns,and rain gardens. In
Concord or the Central Contra
recycledwater for addition,sediment traps and filters Costa Sanitary District (CCCSD)
can allow stormwater to dissipate
landscaping • and help remove pollutants from Upgraded off-site sewer facilities
totalminimize runoff. (such as lift stations) to handle
demand additional wastewater flow
Reducing Landfill Waste . A recycled water system for
composting The CRP area is being designed and treated wastewater,to be oper-
planned to reduce the amount of ated by the CCCSD
of yard waste, food solid waste requiring landfill dis-
. Anew storm drainage system
scraps, • other posal. In addition to curbside waste
organic refuse collection, new recycling and green • Electric,gas,and telecommunica-
waste/food scrap collection ser- tion facilities,generally operated
vices will be established. An array by private utilities
Green streets that of public education and outreach
reduce stormwater measures will be used to divert Dedication of utility easements
waste from landfills and promote and rights-of-way will be part of
runoff • improve recycling. Facilities for composting the more detailed planning that
water quality will provide a source of high quality will occur on the site after the Area
soil amendment for gardening and Plan is adopted. Coordination with
landscaping multiple service providers will be
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110 Concord Reuse Prosect Area Plan H Book One
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essential. Engineering standards practice metering systems KEY INITIATIVES
will support utilities that are safe, • Create phasing plan for utilities
aestheticallypleasing,environmen- Exploring the use of raw water
p g' from the Contra Costa Canal as reflecting more detailed planning
tally sensitive,and compatible with and conclusions of financial and
adjacent uses. a supplemental source for non- fiscal analyses.
potable use
UsingWater Wisely • Conduct or require conceptual
y The Central Contra Costa Sanitary engineering of utility infrastruc-
In June 2010,the CCWD completed District (CCCSD) has made a com- ture (alignments,sizing,connec-
a State-required Water Supply As- mitment to deliver recycled water tions,off-site improvements).
sessment for the site and concluded to the site, using highly treated
that the District will be able to ac- effluent from its treatment plant.
commodate the development pro- New recycled water lines and stor-
gram envisioned by the Area Plan. age facilities will be constructed as
This conclusion is partly based on a development takes place, reducing
commitment to water conservation. the need to use potable water for
Conservation measures envisioned landscaping, irrigation,and various
by the Area Plan include: residential and commercial pur-
• Requiring developers to install poses.
"purple pipe"for outdoor irriga-
tion systems throughout the CRP
area to use recycled water.
• Prohibiting the use of potable
water to irrigate all public space
and private outdoor spaces
managed by homeowners asso- OTHER LOCATIONS
ciations when recycled water is TOPIC IS ADDRESSED:
available. Climateree: Action
• Requiring low-flow plumbing provides strat-' - to
mini-
fixtures and appliances mize the energy consump-
tion
and
. greenhouse ..
• Using water efficient landscape . associated with
plantings. utility systems.
• Installing permeable pavement, Chapter
green streets,and other landand Utilities Element of the
-
scaping techniques that manage Concord2030 - .
stormwater runoff and reduce lists citywide utility policies.
heat island effects.
• Equipping all commercial and
residential buildings with best-in-
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Utilities
5.1 Overview 2030 General Plan Goals
The Utilities Chapter provides guidance for developing the infrastructure Relevant to this Ch, . -
needed to transform the CRP area from a largely undeveloped site to a
sustainable mixed-use community.The design of utilities is particularly Availability Adequate
important to achieving the Plan's greenhouse gas reduction goals. Electric Community Facilities.
power generation is one the largest sources of greenhouse gas emissions
in California. Development of the CRP area has the potential to substanGM-2: Ensure that new
-
tially reduce future emissions when compared to the business-as-usual development ,
ys for costs
forecast presented in BookThree by focusing on renewable energy and re- of serviceand does
ducing the energy required to transport water and wastewater.The City's detrimental .. .
ser-
actions will be complemented by State-level actions including the
y facili-
Renewable Portfolio Standard which will result in greater use of renewable ties,water,and flood
energy by PG&E and other electricity providers.The Plan also addresses
the potential to conserve natural resources through provisions for recy-
cling,composting, recycled water use,and efficient delivery of other com-
munity services.
This chapter includes policies relating to the following topics:
• Utility Framework
• Water
• Wastewater
• Recycled water
• Stormwater management (drainage)
• Solid waste management
• Energy
• Telecommunications
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5.2 Utilities Framework
This chapter is underpinned by assumptions about how the CRP area will build out over the next 20 to 30 years.
The assumptions relate to the number of dwelling units and jobs to be added,as well as the extent and spatial
distribution of different land uses and circulation routes.This information is conveyed in Book One,Chapter 3 of
the Area Plan.
This level of detail is sufficient to identify the basic infrastructure needed to serve the site, but more detailed util-
ity system planning will be needed as development takes place. Refinements to the development program and
the particulars of the timing and phasing of development are likely to affect utility planning and design,as will
future advances in technology and changing federal and state requirements.The information presented in the
Area Plan is broad enough to allow the site's developers to respond to such changes. It focuses on basic prin-
ciples intended to ensure that utilities are adequate,available when development occurs,and consistent with the
project's sustainability goals.
General Utilities Policies
V Principle U-1: Construct and operate utility systems which enable development of the CRP area as a
sustainable community with an outstanding quality of life.
Corresponding 2030 General Plan Principle: None
► Policy U-1.1: Provision of Utilities
Ensure the provision and maintenance of adequate water,wastewater, recycled water,
stormwater drainage,and solid waste services to development on the CRP area by the
City of Concord or by the agencies and special districts that provide these services to
Concord.
► Policy U-1.2: Sustainable Design
Incorporate sustainability principles and climate action strategies into the design,opera-
tion and management of utilities to the greatest extent feasible.
► Policy U-1.3: Attractive and Compatible Utility Design
Ensure that utilities are designed to be safe,aesthetically pleasing,environmentally sensi-
tive,and compatible with adjacent uses.
► Policy U-1.4: Undergrounding of Utilities
Generally locate all CRP area utility lines underground,with the exception of the existing
Pacific Gas and Electric (PG&E)transmission lines,south of Bailey Rd.
► Policy U-1.5: Location of Utilities
Construct utility systems within public rights-of-way wherever feasible. Easements may
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be used where locations within rights-of-way are unavailable or impractical.To facilitate
maintenance and access, utility areas should be kept clear of obstructions unless other-
wise agreed upon with the service provider.
► Policy U-1.6: Infrastructure Concurrency
Require infrastructure to be in place or guaranteed to a level acceptable to the City of
Concord Department of Public Works,the California Department of Health Service,the
Contra Costa Water District(CCWD),the Central Contra Costa Sanitary District(CCCSD),
and other appropriate agencies prior to the issuance of building permits, based on an
evaluation of infrastructure plans for the district which the proposed project is located.
5.3 Water
Water is supplied to the site and adjacent areas by CCWD.The major source of CCWD's water is the Sacramento-
San Joaquin Delta.Water originates from rivers draining the Sierra Nevada and flows into the Sacramento and
San Joaquin Rivers,eventually reaching the Delta and San Francisco Bay.The Central Valley Project diverts wa-
ter from the Delta for domestic use.CCWD has a contract with the Central Valley Project ensuring water supply
through 2045,although the supply is subject to reduction during drought.Other water sources available to
CCWD include the East Contra Costa Irrigation District, Mallard Slough, recycled water, local groundwater from
off-site wells,and water transfers. In 2011,the CCWD is in the process of building a new intake in the Delta to ad-
dress problems with saltwater intrusion at its existing three intakes.
CCWD owns and operates three water treatment plants.One of the plants serves the City of Brentwood,and
the other two serve residents throughout the CCWD service area.The Bollman plant, located in Concord,serves
220,000 residents in central Contra Costa County and in 2010 is operating near its capacity of 75 million gallons
per day(MGD). Delta water is conveyed to this plant via the Contra Costa Canal and Mallard Reservoir, located
northwest of the CRP area.The Randall-Bold plant, located in Oakley, has a capacity of 40 MGD with the poten-
tial to expand to 80 MGD.This plant provides water to Antioch, Brentwood,and the Diablo Water District. It also
serves CCWD's retail customers in central Contra Costa County through a 21-mile pipeline.
Existing water infrastructure in the CRP area includes portions of the Contra Costa Canal and the Clayton Canal.
Both canals are owned by the Bureau of Reclamation and managed by the CCWD.The Contra Costa Canal is cur-
rently in use,while the Clayton Canal has been discontinued. In addition to conveying water,the Clayton Canal
and the Contra Costa Canal act as a drainage channel within the site and adjacent neighborhoods during the wet
season.
A new water distribution system will be constructed as the CRP area is developed. If feasible,the system may
incorporate existing water infrastructure on the site,including water pump stations and storage tanks.
The new system will have two integrated components—a potable water distribution system and a recycled water
distribution system.There is also the potential for a third component which conveys raw or untreated water.This
system could withdraw water directly from the Contra Costa Canal to supply residential,commercial,and com-
munity needs and to reduce the need to treat water for certain uses such as irrigation.
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The potable system will rely on treated water from the CCWD. In June 2010,the CCWD completed a Water Supply
Assessment(WSA)for the site in accordance with State of California requirements.The CCWD Board of Directors
has adopted a resolution accepting the findings of the WSA and expressing a commitment to serve the anticipat-
ed development program for the CRP area.The WSA states that the proposed Planning Area development falls
within the level of growth for the service area presumed by the 2005 Urban Water Management Plan (UWMP)
and will not change the service area demand projections.The WSA notes that the 2005 UWMP concluded that
there may be potential supply shortfalls in the latter years of a multiple-year drought period.To address this,
the CCWD plans to obtain supplemental supplies through short-term conservation measures,expansion of Los
Vaqueros Reservoir,and water transfers.
Potable water demand from the CRP area will be reduced when compared with typical demand by households
and businesses in Concord by the use of recycled water for most outdoor purposes,including landscape irriga-
tion,and by employing a variety of water conservation measures.These measures include the use of low-flow
plumbing fixtures and appliances,cooling and refrigeration system design standards that incorporate recycled
water,and water-efficient landscaping and maintenance.These measures are also recognized in BookThree as
part of the Climate Action Plan.
Water Service Policies
.. .- �. .
III Corresponding 2030 eneral Plan Principle PF-1.1 Provide a safe and
reliable water supply.
► Policy U-2.1: Water Management
Work with the CCWD to provide a safe and adequate water supply,coordinate water con-
servation activities, respond to water emergencies and long-term changes in water avail-
ability,and coordinate the delivery of water to future development within the CRP area.
► Policy U-2.2: Water Conservation
Implement water conservation measures to reduce overall water demand and increase
water efficiency.
Water conservation measures are specifically required in further policies in this Book and in
the Greenhouse Gas Reduction Program set forth in Book Three.Additional measures may be
considered and required as specific projects are approved.
► Policy U-2.3: Fixture efficiency
Efficient fixtures (e.g. low-flush toilets, Energy Star dishwashers) should be installed in
residential,commercial,institutional,and industrial buildings,as identified by established
standards such as EPA Watersense and Energy Star.
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► Policy U-2.4: Site efficiency
Minimize water used to landscape and irrigate outdoor areas.To implement this policy,
0 the following strategies should be among those applied:
• Use water efficient landscape plantings,such as drought tolerant landscaping.
• Install permeable pavement,green streets,and other landscaping techniques that-
manage stormwater runoff and reduce heat island effects.
• Use non-potable water for irrigation and sewage conveyance (flushing)for com-
mercial buildings and landscapes.
► Policy U-2.5: Cooling Efficiency
Minimize amount of water required to operate cooling towers in commercial buildings
and evaporative residential air-conditioners. Non-chemical water treatment should be
used to promote water safety and conservation.
► Policy U-2.6: Meter and Monitor
Commercial and residential buildings should be equipped with best-in-practice metering
systems to increase awareness of use levels and help to identify leaks.This may include
installing meters on high use systems to identify if water use is within suitable ranges.
► Policy U-2.7: Storage and Distribution System Standards
Ensure that water distribution systems,storage tanks, pump stations,and other water
facilities serving the CRP area are constructed to meet CCWD's requirements and
standards.Storage tanks will be required to meet CCWD's water supply and fire fighting
design standards.Tanks may be located in Conservation Open Space consistent with pro-
visions of natural resource permits.
► Policy U-2.8: Canals
Protect existing water supply and conveyance systems,including the Contra Costa Canal,
from development impacts.
The City and future developers will work with the CCWD and US Bureau of Reclamation to
evaluate options for protecting the canals,incorporating them as on open space amenity
where feasible.
► Policy U-2.9: Raw/Untreated Water Use
Consider the feasibility of a raw/untreated water distribution system, in addition to the
0 potable water distribution system.
The raw/untreated system could include filtering,storage facilities,and pumping stations
and could potentially withdraw water directly from the Contra Costa Canal.Any untreated or
raw water obtained from the Contra Costa Canal should be withdrawn at a metered location
designated by CCWD.
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► Policy U-2.10: Golf Course Irrigation
Continue the use of on-site wells to provide irrigation water to the Diablo Creek Golf
Course.
5.4 Wastewater
The City of Concord maintains and operates the wastewater collection system in most of Concord and Clayton,as
well as parts of Walnut Creek and the unincorporated Ayers Ranch area.A small portion of the wastewater collec-
tion system, primarily in North Concord and in the area around Sun Valley Mall and the Willows Shopping Center,
is owned and operated by the Central Contra Costa Sanitary District(CCCSD).
Most wastewater collected in Concord flows by gravity to a large pump station at Pine Creek and the Walnut
Creek Channel near Waterworld.A new relief interceptor will soon eliminate the need for the pump station by us-
ing a pipe that is deep enough to allow for gravity flow connection to the treatment plant.
The CCCSD treatment plant is located northeast of the intersection of 1-680 and State Route 4.The measured dry
weather flow into the plant in Fiscal Year 2008 was 35.2 MGD,while its maximum operating capacity was approxi-
mately 125 MGD.The plant's effective capacity is capped by its National Pollution Discharge Elimination System
(NPDES) permit,which is intended to limit effluent discharge into San Francisco Bay.The NPDES permit allows a
maximum dry weather flow of 53.8 MGD. During wet weather,the District diverts excess sewer inflow into hold-
ing basins which can store up to 140 million gallons.
Wastewater at the plant is treated to either secondary or advanced levels.The secondary treated wastewater is
discharged into Suisun Bay,while wastewater receiving advanced treatment is reused for non-potable purposes
through a recycled water system
The City of Concord pays a proportional share of the cost associated with operating the CCCSD treatment plant
and also contributes to the capital improvements needed to maintain and improve the plant.The City has a 20-
year Sewer Enterprise Plan that projects the revenue and expenditures needed to operate its sewerage system,
including its annual contributions to the CCCSD plant.
New wastewater collection lines will be needed as development of the CRP area takes place.Consistent with
Concord 2030 General Plan policy,all construction will be coordinated with the City of Concord Public Works
Department and the CCCSD to ensure that the quality of service for established customers is maintained as new
development takes place. Improvements to existing transmission mains and pumping stations in North Concord
may be needed to handle the additional flow from the site to the treatment plant.
It is not yet known whether wastewater collection services will be provided by the City of Concord or the CCCSD,
since both agencies have jurisdiction over portions of the site? In either event,the CCCSD will provide wastewa-
ter treatment services.The solids-handling facilities and primary sedimentation processes at the treatment plant
may need to be improved to accommodate development consistent with the Area Plan.
2 At the time of Area Plan preparation,the CRP area included some areas where the CCCSD would be the wastewater collection agency,some areas
where the CCCSD or the City of Concord would be the wastewater collection agency,and other areas where no sanitary sewer service provider has been
identified.
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Since the NPDES permit for effluent discharge at the CCCSD treatment plant did not anticipate development on
the site,there is a possibility the plant could reach its permitted limit sooner than was previously anticipated.The
City and Sanitary District will need to work with the RWQCB to address this issue. It is possible that the exist-
ing NPDES permit will remain sufficient if other presumed projects do not build out as planned, if there is less
groundwater infiltration into the collection system,or if aggressive use of recycled wastewater results in less
discharge.
Wastewater Service Policies
Corresponding 2030 General Plan Principle PF-1.2: Ensure public health and safety by
providing effective wastewater collection and treatment.
► Policy U-3.1: Wastewater Management
Protect public health and safety by ensuring that adequate,effective wastewater collec-
tion systems are in place or committed as development of the CRP area takes place.All
wastewater collection improvements made by the City of Concord shall be coordinated
with the CCCSD.
► Policy U-3.2: Sewerage Planning and Financing
Revise Sewer Enterprise Fund projections,wastewater forecasts,capital improvement
plans,and other plans for wastewater service to reflect the added demand from develop-
ment within the CRP area. Establish the programs or development fees necessary to en-
sure that future revenue sources will be sufficient to expand existing wastewater collec-
tion and treatment facilities and recycled water systems to accommodate projected flows.
► Policy U-3.3: Wastewater Collection Service Agreement
Reach an agreement between the City of Concord and the CCCSD regarding the provision
of wastewater collection services to the Planning Area.Once this agreement is reached,
revise plans, programs,and fees accordingly to accommodate the project.
This should include revised projections for the CCCSD wastewater treatment facility,and revi-
sion of the NPDES permit if necessary to permit a higher effluent discharge limit.
5.5 Recycled Water
The use of recycled water in California is regulated by Title 22 of the California Code of Regulations. Permitted
uses depend on the level of treatment provided. Possible uses include irrigation,toilet flushing in non-residential
buildings,car washes,water features,and building cooling systems.
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In 1996,CCCSD and CCWD reached an agreement allowing CCCSD to supply recycled water from the wastewa-
ter treatment plant to parts of the service area.About 200 million gallons of recycled water are currently used
each year by irrigation customers,including two golf courses,a community college,an elementary school,three
middle schools,a high school,and the City of Pleasant Hill.
A recycled water system is planned for the CRP area to reduce total water demand and avoid the need to use
drinking water for irrigation and other non-potable purposes. Recycled water use is one of the water-related
climate action strategies included in BookThree's Greenhouse Gas Reduction Program.
In August 2009,CCCSD provided a"Will Serve"letter to the City of Concord indicating its commitment to be the
supplier of recycled water.The Letter acknowledges that the precise amount of recycled water has yet to be de-
termined, but cites CCCSD's ability and intent to provide up to 6,000 acre-feet per year.The State Water Resources
Control Board has granted CCCSD the authority to provide up to 26,120 acre feet of recycled water per year for
irrigation and industrial purposes throughout its service area.This is far greater than CCCSD's 2009 delivery of 700
acre feet of recycled water a year.
Delivery of recycled water to the CRP area will require construction of a pipeline connecting CCCSD's treatment
facility to the site.Storage facilities could be required within the Planning Area. Expansion and renovation of
CCCSD's existing tertiary treatment facility also would be required.The specific needs and associated costs for re-
cycled water facilities would be determined through subsequent planning activities and would be incorporated
into project-level development approvals.
New recycled water distribution lines ("purple pipe") and pumping stations will be required to serve new de-
velopment.These facilities would allow recycled water to be used for parks, recreational facilities,and various
residential and commercial purposes.
Recycled Water Policies
v PrincipleU-4: Reduce the use of potable water for non-potable purposes by providing a recycled
6twa _m nq the CRP
Corresponding 2030 General Plan Principle: None.
hL
► Policy U-4.1: Recycled Water Quality
Ensure that recycled water complies with all applicable health and safety standards and
other pertinent water quality regulations.
► Policy U-4.2: Recycled Water Use
Require use of non-potable water to irrigate all public spaces and private outdoor space
managed by homeowner's associations. Prohibit use of potable water for irrigation unless
there are no alternative supply sources.
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Use recycled water as the primary water supply for residential and commercial building
cooling and all other applications where potable water is not essential.
► Policy U-4.3: Water System Design Flexibility
Design buildings and irrigation systems to accommodate future use of recycled water if
recycled water is not available at the time of construction.
► Policy U-4.4: Purple Pipe
Require developers to install"purple pipe"in outdoor irrigation systems throughout the
Planning Area to maximize the use of recycled water.
5.6 Stormwater Management
The City of Concord operates and maintains a storm drainage system within the City limits,with runoff conveyed
entirely by gravity flow.The City's system is composed of 229 miles of storm drain pipes, 1,140 manholes,and
almost 6,000 catch basins.Storm drain pipes discharge into a network of creeks and drainage ways.The Con-
tra Costa County Flood Control and Water Conservation District maintains and operates the channels receiving
much of this runoff, including Mt. Diablo Creek and the Holbrook Channel.The District ensures that adequate
capacity exists to manage stormwater runoff from development and requires that its channels be designed to
handle a 25-year storm event.
Because the CRP area is mostly undeveloped,existing drainage infrastructure is minimal. More than 75 percent
of the site drains into Mt. Diablo Creek.About 22 percent of the site drains to the Holbrook Channel and associ-
ated Concord urban drainages.The Channel is a constructed drainage feature that begins near the western edge
of the site and flows north through Concord until it joins Walnut Creek. It receives storm runoff from an upstream
watershed in the City of Clayton through a 36-inch outfall at the intersection of Olivera Road and Willow Pass
Road at the site boundary.The capacity of the Holbrook Channel may be constrained at the locations where it
passes under the Contra Costa Canal and at another culvert location near the intersection of Willow Pass Road
and Olivera Road.
The Contra Costa Canal and Clayton Canal also function as stormwater drainage features. During the rainy sea-
son, runoff from the CRP area flows into both channels.This may need to change as the site is urbanized.
A new storm drainage system will be constructed as the CRP area is developed.The system will use existing
drainage features including Mt. Diablo Creek and will be interconnected to the existing City of Concord storm
drain system.The City's Storm Drain Master Plan will be amended to reflect the additional drainage needs of this
newly urbanizing area.
The storm drainage system may incorporate stormwater detention or retention ponds that reduce runoff vol-
umes and speeds.Some of these ponds may be located within the 300-foot buffer area along Mt. Diablo Creek;
others may be located within future open spaces or other public land in the Planning Area. In addition,flood
control improvements to Mt. Diablo Creek will be constructed to handle the increased volume of runoff and
reduce future flood hazards. Drainage improvements also will be made in low-lying areas where development is
planned, particularly near the former airfield on the western edge of the site.
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3.2.2.4 Water Efficiency Principles and Policies
• ..
Minimize building and site water consumption. (See BookTwo, Principle U-2.2)
► Policy CA-WR-1.1: Fixture efficiency
Efficient fixtures (e.g. low-flush toilets, Energy Star dishwashers) should be installed in
residential,commercial,institutional,and industrial buildings,as identified by established
standards such as EPA Watersense and Energy Star.
► Policy CA-WR-1.2:Site efficiency
Minimize water used to landscape and irrigate outdoor areas.To implement this policy,
the following strategies should be among those applied:
• Use water efficient landscape plantings,such as drought tolerant landscaping.
• Install permeable pavement,green streets,and other landscaping techniques that
manage stormwater runoff and reduce heat island effects.
• Use non-potable water for irrigation and sewage conveyance (flushing)for
commercial buildings and landscapes.
► Policy CA-WR-1.3:Cooling Efficiency
Minimize amount of water required to operate cooling towers in commercial buildings
and evaporative residential air-conditioners. Non-chemical water treatment should be
used to promote water safety and conservation.
► Policy CA-WR-1.4: Meter and Monitor
Commercial and residential buildings should be equipped with best-in-practice metering
systems to increase awareness of use levels and help to identify leaks.This may include
installing meters on high use systems to identify if water use is within suitable ranges.
► Policy CA-WR-1.5: Recycled Water Use
Require use of non-potable water to irrigate all public spaces and private outdoor space
managed by homeowner's associations. Prohibit use of potable water for irrigation unless
there are no alternative supply sources.
Use Recycled Water as the primary water supply for residential and commercial building
cooling and all other applications where potable water is not essential. (See Book Two,
Policy U-4.2.)
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► Policy CA-WR-1.6:Water System Design Flexibility
Design buildings and irrigation systems to accommodate future use of recycled water if
recycled water is not available at the time of construction. (See BookTwo, Policy U-4.3.)
► Policy CA-WR-1.7: Purple Pipe for Recycled Water
Require developers to install"purple pipe"in outdoor irrigation systems throughout the
Planning Area to maximize the use of recycled water. (See BookTwo, Policy U-4.4.)
► Policy CA-WR-1.8: Raw/Untreated Water Use
Consider the feasibility of a raw/untreated water distribution system, in addition to the
potable water distribution system. (See Book Two, Policy U-2.5.)
3.2.3 Initiative Three: Education and Collaboration
The education and collaboration policies below are unique to the CAP.The first four policies each support imple-
mentation of reduction strategies related to one of the sectors included in Initiative Two of the Greenhouse Gas
Reduction Program.An additional policy focuses on collaboration between the City,community members,and
other stakeholders.
OR
. - W. P.W.
Engage community members, utility providers,and agencies in collaborative activities
to increase awareness of opportunities to reduce GHG emissions.
► Policy CA-EC-1.1: Move Smart
Encourage behavior patterns that lead to use of forms of transportation that have lower
environmental impacts and support community health.All,or a selection of,the follow-
ing strategies should be among those applied to implement this policy:
• Encourage individuals to choose active, non-polluting travel options by organizing
events such as'car-free Sunday'on selected streets
• Provide training about eco-driving techniques that can reduce gas consumption
• Encourage businesses to provide rewards for transit riders equivalent to the value
of parking validation.
• Promote bicycling,walking,and transit use through public information and
education relating to facilities, services,safety,schedules,environmental benefits,
and related topics. (BookTwo, Policies T-1.9,T-4.7.)
► Policy CA-EC-1.2: Energy Smart
Promote efficient use of energy and use of renewable energy sources by individuals,
households and businesses.All,or a selection of,the following strategies should be
among those applied to implement this policy:
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Carlson, Barbee Attachment 4
[ELI I
& Gibson, Inc.
CIVIL ENGINEERS • SURVEYORS • PLANNERS
August 15, 2017
Job No.: 2431-000
Updated:December 12, 2017
MEMORANDUM
TO: Rachel Flynn—Lennar/FivePoint
FROM: Angelo J. Obertello, P.E., LEED AP, Principal
SUBJECT: Infrastructure Summary—Utilities
Concord Reuse Plan
Concord, California
The following is a summary of the proposed infrastructure systems to support the development
of the Concord Reuse Plan (CRP). This summary is based upon the current proposed CRP
Framework Plan prepared by Hart Howerton, dated November 7, 2017. This summary describes
the approach to provide utility infrastructure to the CRP.
Wastewater
Service Providers
The CRP is located within both the Central Contra Costa Sanitary District (CCCSD) and City of
Concord service areas. The boundary of these service areas generally follows the existing
ridgeline that bisects the development areas. Both service areas collect and convey wastewater to
the wastewater treatment plant owned and maintained by CCCSD, located near the Interstate 680
/Highway 4 interchange, approximately 3 miles northwest of the CRP.
Treatment Capacity
The estimated wastewater generated by the CRP proposed land uses at build-out is
approximately 5.8 million gallons per day (MGD). CCCSD has indicated that their wastewater
treatment plant currently has adequate available treatment capacity to accommodate the build-out
of the CRP.
2633 CAMINO RAMON,SUITE 350•SAN RAMON,CALIFORNIA 94583•(925)866-0322•www.cbandci.com
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Carlson, Barbee & Gibson, Inc.
CRP—Infrastructure Summary August 15, 2017
Page 2 of 8 Job No.: 2431-000
Updated.-December 12, 2017
Existing Collection Facilities
The City of Concord owns and maintains the existing collection facilities within their service
area. This includes pipelines within the existing developed areas to the southwest of CRP. The
City's system includes a series of gravity pipelines that convey wastewater from the City of
Concord and other surrounding areas to the CCCSD treatment plant.
CCCSD owns and maintains existing wastewater collection facilities in North Concord. These
facilities include pipelines,pump and lift stations that convey wastewater to their treatment plant.
The nearest existing CCCSD collection facilities to the CRP are located near the intersection of
Bates Avenue and Port Chicago Highway. See Figure 1 —Existing Wastewater Facilities.
Both the City of Concord and CCCSD have previously evaluated the required improvements to
their respective existing systems in order to accommodate the future wastewater flows from the
CRP. Each has identified that there are required pipeline capacity improvements downstream of
the CRP in order to accommodate the increased wastewater.
Proposed Wastewater System
The proposed sanitary sewer system will be configured to minimize the extents of the
downstream system upgrades within either the CCCSD or City of Concord service areas. In
order to accomplish this, the following wastewater scenarios for the CRP will be evaluated with
CCCSD and the City of Concord:
• CRP wastewater is entirely conveyed to CCCSD's system to the north.
• CRP wastewater is entirely conveyed to the City of Concord's system to the southwest.
• CRP wastewater is partially conveyed to both the CCCSD and City of Concord, similar
to the existing service area boundary.
• CRP wastewater is partially conveyed to both the CCCSD and City of Concord, with an
adjusted service area boundary arranged to avoid downstream improvements within the
City of Concord system.
The proposed wastewater system within the CRP will include pipelines located within the
proposed street rights of ways and defined utility corridors. The pipelines will range in size from
8-inches to 30-inches in diameter. Pump stations may be necessary depending on which service
scenario outlined above is selected. Also, interim pump stations may be necessary to address the
phasing of the development. See Figures 2 & 3 — Schematic Wastewater System Alternatives.
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Carlson, Barbee & Gibson, Inc.
CRP—Infrastructure Summary August 15, 2017
Page 3 of 8 Job No.: 2431-000
Updated.-December 12, 2017
Stormwater Management
Existing Conditions
The CRP is located in two different watersheds, Mt Diablo Creek and Holbrook Channel. The
majority of the site is in the Mount Diablo Creek Watershed including the easterly and southerly
portions of the CRP. Mount Diablo Creek originates south of the CRP and flows through the site
and ultimately discharges into Suisun Bay. The westerly and northerly portions of the site are
located in the Holbrook Watershed. The Holbrook Channel begins near Willow Pass Road and
Olivera Road and flows northwesterly through the Holbrook neighborhood across Port Chicago
Highway and Highway 242, and ultimately discharges into Walnut Creek. There are also smaller
portions of the CRP that drain directly into the Contra Costa Water District (CCWD) canal
within the site. See Figure 4—Existing Project Watersheds.
The existing 100-year floodplains of both the Mt Diablo Creek and Holbrook Channel
downstream of the CRP extend beyond the banks of the creek or channel into neighboring
existing developed areas.
There are minimal existing drainage facilities within the site. The majority of the storm runoff
flows overland within ditches that have culverts at roadway or railroad crossings. The
northwestern portions of the Mt Diablo Creek watershed are conveyed through culverts under
Highway 4 to ditches within the Diablo Creek Golf Course, eventually discharging to Mt Diablo
Creek northwest of the CRP. The northwestern portions of the Holbrook Channel watershed are
collected by an existing 36-inch diameter pipeline located in the southwestern portion of the
existing BART parking lots. This pipeline extends to the southwest, through the adjacent
neighborhoods, eventually discharging to Holbrook Channel.
Proposed System Improvements
The proposed stormwater management system will include an integrated system consisting of the
restoration of Mount Diablo Creek, a conventional storm drain system, detention basins, and
water quality treatment measures using best management practices (BMP's). The detention
basins and BMP's will be constructed as attractive landscaped features.
The restoration of Mount Diablo Creek will provide for increased capacity in a tiered floodway
together with off-line detention basins, habitat restoration and opportunities for walking and
biking trails.
The proposed drainage patterns will closely match the existing patterns. The storm drain system
will include inlets and pipelines that will convey stormwater to strategically located detention
basin sites. The proposed pipelines will range in size from 18-inches to 84-inches in diameter.
The pipelines will be located in public street rights of way or utility corridors. The detention
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Carlson, Barbee & Gibson, Inc.
CRP—Infrastructure Summary August 15, 2017
Page 4 of 8 Job No.: 2431-000
Updated:December 12, 2017
basins will provide stormwater quality treatment as well as conventional flow attenuation so as to
not impact downstream areas with increased storm water flows. There will be outfalls from the
detention basins to Mt Diablo Creek and Holbrook Channel. The number of outfalls to Mt Diablo
Creek will be minimized, while maintaining optimal sub-watershed sizes that are coordinated
with the land plan and project phasing. The project runoff discharging to the CCWD canal will
be reduced to only include the open space and trail areas planned directly adjacent to the canal.
See Figure 5 — Schematic Stormwater Management System.
The CRP will implement low impact development (LID) techniques utilizing BMP's. The
stormwater system will include the appropriate source control, site design, and stormwater
treatment measures to address stormwater quality and prevent increases in stormwater runoff.
The stormwater quality treatment will primarily be accomplished through the multi-functions of
the proposed detention basins. These detention basins are intended to be constructed with bio-
filtration elements on the floor of the basin providing end of the line water quality treatment for
the entire watershed prior to discharge of runoff from the CRP. The detention basins will also
attenuate the peak flows such that they are equal to or less than the existing discharge from the
site, such that there are no impacts to the already flood constrained downstream portions of Mt
Diablo Creek and Holbrook Channel. The downstream portions of Mt Diablo Creek and
Holbrook Channel are existing engineered hardened channels and tidally influenced with low
risk of erosion. Accordingly, further hydro-modification requirements to protect the erosion of
these facilities will not be required. The design of the CRP stormwater management systems will
comply with the State Water Quality Control Board's (SWQCB) Municipal Regional Permit and
Contra Costa County's Clean Water Program regulations and requirements.
Potable Water
Service Provider
Contra Costa Water District (CCWD) provides potable water service to the City of Concord as
well as Antioch, Bay Point, Clayton, Martinez and portions of Pleasant Hill, Martinez and
Walnut Creek. CCWD also owns and maintains the treatment, storage, transmission, and
distribution facilities within public streets throughout its service area.
Existing Facilities
CCWD's primary source of water is from the Central Valley Project, which diverts water from
the Delta for domestic use. CCWD operates three water treatment plans including the Bollman
Water Treatment Plant in Concord (approximately 1.5 miles northwest of the CRP on Bates
Avenue), and the Randall-Bold and Brentwood Water Treatment Plants in Oakley. Water from
Delta is conveyed to the Bollman Water Treatment Plant via the Contra Costa Canal and Mallard
Reservoir.
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Carlson, Barbee & Gibson, Inc.
CRP—Infrastructure Summary August 15, 2017
Page 5 of 8 Job No.: 2431-000
Updated:December 12, 2017
Existing water infrastructure within the CRP includes portions of the Contra Costa Canal—Loop
Canal. There is also the existing Clayton Canal, which in no longer in use. The Loop Canal
currently delivers raw water to CCWD facilities throughout Concord, Pleasant Hill and Martinez.
This canal is currently being studied by CCWD to determine the highest and best long term use.
Potential uses include the continued delivery of raw water, conversion to delivery of recycled
water, or abandonment of the canal. The use of the Clayton Canal was previously discontinued
and CCWD is in the process of abandoning this facility. Currently, the Clayton Canal's primary
function is conveying drainage from the Los Medanos Ridge.
CCWD operates multiple pressure or service zones within its potable water distribution system.
The CRP is located within Zones 1 and 2. Zone 1 serves areas with elevations up to 120-feet and
Zone 2 serves areas with elevations between 120-feet and 220-feet. There is an existing 48-inch
diameter pipeline along the southwestern boundary of the CRP that extends from Port Chicago
Highway to Willow Pass Road. This pipeline operates at Zone 2 pressure. The CCWD Master
Plan calls for this pipeline to be converted to operate in Zone 1 pressure. As part of this
conversion, CCWD owns an existing pump station on Willow Pass Road at Clayton Way
adjacent to the CRP that is currently inactive and would be activated to provide Zone 2 pressure
to the CRP.
Capacity
The anticipated potable water demand from the proposed build-out of the CRP is approximately
5.6 MGD.
CCWD's Master Plan indicates that they have adequate water supply and treatment capacity for
the CRP. CCWD also prepared a Water Supply Assessment in 2010 that confirmed CCWD's
commitment and capacity to serve the CRP. The Master Plan also indicated that the existing
system has inadequate storage volume within the area of the CRP. Therefore, new storage
reservoirs with a total volume of approximately 6.6 MGD will be required to be constructed as
part of the CRP. These reservoirs will be located in the Los Medanos Ridge in an area acceptable
to CCWD, the City of Concord and East Bay Regional Park(EBRPD). The required elevation of
the top of the reservoirs is elevation 324-feet. The required storage will be constructed in phases,
likely in two 3.3 MGD water tanks. The location of the storage reservoirs may be relocated from
the location that the CCWD Master Plan depicted, in order to improve access to the reservoirs,
reduce disturbance of EBRPD land and place the reservoirs on seismically stable land.
Proposed System Improvements
The proposed system of water distribution pipelines will be constructed throughout the CRP.
These pipelines will range in size primarily from 8-inches to 12-inches in diameter. There will be
a larger diameter pipeline, likely 24-inches to 36-inches, that extends from the CRP to connect to
the existing system within North Concord. The pipelines will be located within public street
rights of ways and utility corridors. The proposed water system will be consistent with the
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Carlson, Barbee & Gibson, Inc.
CRP—Infrastructure Summary August 15, 2017
Page 6 of 8 Job No.: 2431-000
Updated:December 12, 2017
CCWD Master Plan. There will be pressure reducing stations located at the interconnections
between Zone 1 and Zone 2 areas. There are no additional pump stations proposed within the
CRP. See Figure 6—Schematic Potable Water System.
Recycled Water
Existing Facilities
Central Contra Costa Sanitary District (CCCSD) currently produces approximately 3 MGD of
recycled water at its existing wastewater treatment plant. CCCSD's current recycled water
capacity is anticipated to be able to provide recycled water to the first phase of development of
the CRP. CCCSD is developing a plan to expand their capacity of recycled water to be able to
serve the entire build-out of the CRP as well as other recycled water uses within the CCCSD
service area.
Proposed System Improvements
The CRP will utilize recycled water for non-potable uses to the maximum extent possible. This
is a key goal of the CRP and has also been factored into the CCWD Master Plan by way of
reduced potable water demands and required facilities.
The proposed recycled water system will have an on-site distribution system consisting of
recycled water mains and recycled water storage reservoirs to equalize operational demands. The
pipelines will range in size from 8-inches to 12-inches in diameter and will be located in public
street rights of ways and utility corridors. Delivery of recycled water to the CRP will require the
construction of a pipeline from the project site connecting to the CCCSD treatment plant. The
recycled water storage reservoir is anticipated to be constructed at a similar location as the
potable water storage reservoirs within the Los Medanos Ridge. CCWD will own and operate the
recycled water distribution and storage facilities, and CCCSD will provide the supply. See
Figure 7— Schematic Recycled Water System.
Dry Utilities
Electric
The CRP site electric service delivery is provided by Pacific Gas & Electric Company (PG&E).
Existing 12 and 21 kilovolts (kV) overhead distribution facilities occupy franchised areas on the
north, south, east and west of the project. Additional 12kV and 21kV overhead lines exist on site,
and several lines traverse the project; one along Willow Pass Road and Mt. Diablo Creek, the
other east of Port Chicago Highway. PG&E 115kV overhead transmission lines bisect the
EBRPD site just north of Kirker Pass Road. Existing distribution lines in and about the project
site have limited capacity; at this time that available capacity has been identified to be about 10
mega-volt amperes (MVA). With a total project build out potential of about 40-50MVA,
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Carlson, Barbee & Gibson, Inc.
CRP—Infrastructure Summary August 15, 2017
Page 7 of 8 Job No.: 2431-000
Updated:December 12, 2017
transmission facility capacity appears adequate. A substation will be required to serve this
forecasted demand, beyond the initial lOMVA. This 230/21kV substation is proposed to be
located on site or in proximity to the site, and will require land for the switchyard, as well as land
for the 230kV transmission and 21kV distribution line ingress and egress. Preliminary
configurations of these substation facilities require approximately 5 acres. 230kV transmission
access will be from the east, beyond the terminus of Avila Road. Total electric demand will be
subject to land use and distributed generation efforts. Multiple underground 12kV distribution
circuits emanating from the substation location will occupy dedicated easements and franchised
street rights of way to serve the entire project. These facilities will be an element of a proposed
joint trench system, with other dry utilities, such as natural gas and telecom, where possible.
Natural Gas
The natural gas service will be provided to the project site from PG&E. PG&E owns and
operates existing natural gas transmission pipelines along the north side of Highway 4 and north
of Kirker Pass Road. PG&E also has existing natural gas distribution facilities within Port
Chicago Highway, at the southern end of the project on Willow Pass Road, and just beyond the
west side of the project. These lines may be utilized for the initial development based on
available capacity. Proposed natural gas distribution infrastructure will emanate from the existing
natural gas transmission line north of Highway 4. Local PG&E transmission facilities appear to
have adequate capacity to support the buildout of the CRP. The project natural gas distribution
system will occupy the proposed joint trench systems with the other dry utilities. There may be a
gas regulator station constructed near the connection to PG&E's existing transmission facilities.
Telecommunications
The telecommunication service is provided to the project site from AT&T and Comcast. AT&T
and Comcast do not anticipate any issues providing the additional telecommunications demand
to serve the CRP. The project telecommunications system will connect to existing AT&T
facilities within Willow Pass Road; additional AT&T and Comcast facilities existing on the
north, south and west project boundaries. These telecommunications facilities will be extended
throughout the CRP in a joint trench with other dry utilities. This will include fiber optic lines
and other state-of-the-art telecommunications infrastructure.
Sustainability
The CRP will maintain and / or exceed the goals and policies set forth in the CRP Area Plan —
Climate Action Plan. A sustainable project design will be implemented that reduces greenhouse
gases, minimizes water demand, reduces energy demand, and achieves waste reduction. A
number of sustainable strategies and green infrastructure opportunities will be evaluated as the
CRP advances, maintaining the flexibility and opportunity to implement state-of-the-art
solutions. The conventional infrastructure systems described previously will provide a platform
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Carlson, Barbee & Gibson, Inc.
CRP—Infrastructure Summary August 15, 2017
Page 8 of 8 Job No.: 2431-000
Updated:December 12, 2017
for which additional green infrastructure elements can be integrated such that demands and
infrastructure needs external to the project are reduced.
Phasing
The backbone infrastructure improvements required for the CRP will be phased to match the
development phases as closely as possible. The required improvements for each phase will
include demolition, corrective geotechnical measures, site grading, utilities, streets and transit
improvements. Each phase will construct the portion of infrastructure required to support the
proposed uses and surrounding existing uses and to maintain financial feasibility of the project.
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SAN RAMON,CALIFORNIA (925)866-0322 CONCORD REUSE PROJECT
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April 25, 2018 REEP Committee Meeting Agenda Packet- Page 77 of 84
Page 37 of 41
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Page 38 of 41
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Page 39 of 41
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