HomeMy WebLinkAboutReso 105-13 Water Resource Element RESOLUTION NO. 105 - 13
A RESOLUTION OF THE CITY COUNCIL
OF THE CITY OF DUBLIN
APPROVING A GENERAL PLAN AMENDMENT FOR THE NEW
WATER RESOURCES ELEMENT
PLPA-2013-00022
WHEREAS, one of the City Council's key initiatives for Fiscal Year 2011/2012 was to
create a new Water Resources Element of the General Plan; and
WHEREAS, in accordance with the California Environmental Quality Act, certain projects
are required to be reviewed for environmental impacts and when applicable, environmental
documents prepared; and
WHEREAS, the proposed General Plan Amendment for the new Water Resources
Element is exempt from the environmental review requirements of the California Environmental
Quality Act (CEQA) pursuant to CEQA Guidelines Section 15061(b)(3), because the activity is
covered by the general rule that CEQA applies only to projects which have the potential for
causing a significant effect on the environment, and where it can be seen with certainty that
there is no possibility that the activity in question may have a significant effect on the
environment, the activity is not subject to CEQA; and
WHEREAS, consistent with Government Code section 65352.3, the City notified the
tribes identified by the Native American Heritage Commission of the opportunity to consult with
the City on the proposed General Plan amendment. None of the contacted tribes requested a
consultation within the 90-day statutory consultation period and no further action is required
under section 65352.3; and
WHEREAS, on May 28, 2013, the Planning Commission held a properly noticed public
hearing on the Project and adopted Resolution 13-18 recommending that the City Council
approve a General Plan Amendment for the new Water Resources Element, which resolution is
incorporated herein by reference; and
WHEREAS, on June 18, 2013, the City Council held a properly noticed public hearing on
the Project; and
WHEREAS, a Staff Report dated June 18, 2013 and incorporated herein by reference
was submitted recommending that the City Council approve the General Plan Amendment for
the new Water Resources Element; and
WHEREAS, the City Council did review and consider all said reports, recommendations
and testimony herein above set forth prior to taking action on the Project.
NOW, THEREFORE, BE IT RESOLVED that the foregoing recitals are true and correct
and made a part of this Resolution.
Page 1 of 2
BE IT FURTHER RESOLVED that the City of Dublin City Council does hereby approve
the General Plan Amendment for the new Water Resources Element, attached as Exhibit A
and incorporated herein by reference, based on findings that the amendments are in the public
interest and that the General Plan as so amended will remain internally consistent.
BE IT FURTHER RESOLVED that this Resolution shall take effect thirty days after the
date of adoption.
PASSED, APPROVED AND ADOPTED this 18th day of June, 2013, by the following
vote:
AYES: Councilmembers Biddle, Gupta, Hart, Haubert, and Mayor Sbranti
NOES: None
ABSENT: None
ABSTAIN: None
Mayor
ATTEST:
C L 44-
City Clerk
Reso No. 105-13,Adopted 6-18-13, Item 6.1 Page 2 of 2
City of Dublin
Chapter 12
ENVIRONMENTAL
RESOURCES MANAGEMENT:
WATER RESOURCES ELEMENT
12.1 _- INTRODUCTION _
•
An adequate and high quality water supply is considered a basic need, and the use and quality
of water has long been regulated by government. Since water moves easily across jurisdictional
boundaries, much of the regulation is at the regional, state and federal levels. However, since cities
and counties have legal authority over development and land use, they must consider the adequacy
of water supplies and how development affects the quantity and quality of water available for other
beneficial uses.
The long term adequacy of groundwater and surface water resources has become a major public
concern in California. Water related issues include lowered groundwater levels and salt loading,
increased storrnwater runoff, sediment and pollutants in runoff, water diversions into and out of the
watershed of the greater San Francisco Bay Area, summer rationing in dry years, the water needs
of fish and wildlife, the rates of water usage, conservation methods, water storage limitations, the
growing re-use of water and continuing changes in state and federal regulations.
The City of Dublin does not control the supply or the delivery of water to customers, nor does the City
control cost and pricing mechanisms related to water supply.The City does not manage regional flood
control facilities either. However, the City works in collaboration with other agencies that provide
these services, and therefore the scope of the Water Resources Element reflects this reality.The scope
of City influence extends mainly to promoting and encouraging water conservation among business
and residential users, implementing Low Impact Development measures to help treat stormwater, as
well as managing the stormwater runoff and pipelines that lead to flood control facilities.The Water
Resources Element is intended to guide these efforts.
12.11 PURPOSE
The primary purpose of this element and the reason for including this optional Element in the
Dublin General Plan is to ensure that the City's water resources are sustained and protected, and to
consolidate information and polices related to the conservation and management of water resources,
riparian corridors, and watershed lands. The Water Resources Element also defines the stormwater
facilities needed to serve Dublin at buildout of the General Plan.
12.1.2 RELATIONSHIP TO OTHER GENERAL PLAN ELEMENTS
California Government Code Section 65302 requires a Land Use Element that includes the location
and extent of various land uses, and a Conservation Element that includes water and its hydraulic
force, rivers and other waters. Section 65302 also states that the Conservation Element may cover
control of streams and other waters, protection of watersheds, and flood control. Note, however, that
Government Code Section 65301(a) allows a legislative body to adopt a General Plan in any format
deemed appropriate or convenient.
Some other water-related topics are addressed in other Elements.Water availability as a factor in future
development is addressed in the Land Use Element. The Conservation Element addresses riparian
corridors and erosion/siltation control. The Schools, Public Lands, and Utilities Element addresses
t City of Dublin General Plan Water Resources Element 12-1
•
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water supply and connections to public water systems. The Public Safety Element addresses flood
hazards, fire suppression, and hazardous materials.
The Water Resources Element has been developed to be consistent with and complementary to other
Elements. References to policies in other Elements are provided where they support or implement the
objectives of the Water Resources Element.
1.3 Scope and Organization
The Water Resources Element is organized as follows:
Section 2 reviews the Legislation and the Regulatory Environment,Water Sources,Water Demand and
Use, Conservation and Efficiency, and how to ensure Water Quality and Manage Urban Runoff.
Section 3 includes the City's policies to manage water resources, use water efficiently, and ensure
water quality, flood protection, and manage stormwater.
•
12.2 BACKGROUND
12.2.1 KEY LEGISLATION AND THE REGULATORY ENVIRONMENT
The regulatory environment for water resources can generally be divided into three categories: water
supply, water use and conservation, and water quality management. Recent legislation is described
briefly below, which explains what is required by mandate and offers insight into why Dublin has
some of the ordinances and requirements that it does.
Water Supply Legislation
In 2001, two water supply planning bills were enacted that require greater coordination and more
data to be shared between water suppliers and local land use agencies for large development projects.
Senate Bill 610 requires a Water Supply Assessment(WSA)for any development project of more than
500 housing units (or the commercial/mixed-use equivalent).The WSA needs to be part of any CEQA
document prepared for the project. If there is not adequate water to reliably supply the project in
normal, dry, and multiple dry years, new water sources need to be identified.
Senate Bill 221 prohibits any land use agency from approving a subdivision map of more than 500
housing units (or 10% increase in the total number of existing water connections) unless there is
written verification from a water provider that a sufficient and reliable water supply is available.
Water Use and Conservation Legislation
Senate Bill X7-7 was enacted in November 2009, requiring all water suppliers to increase water use
efficiency. The legislation sets a statewide goal of reducing per capita urban water use by 20°/s by
December 31, 2020. Collectively,the State of California shall make incremental progress towards this
goal by reducing per capita water use by at least 10% by December 31, 2015.
Assembly Bill 1881,the Water Conservation in Landscaping Act of 2006,requires that local jurisdictions
12-2 City of Dublin General Plan Water Resources Element St
prepare and adopt a Water Efficient Landscaping Ordinance (WELO).The intent of requiring a WELO
for each California jurisdiction is to ensure the installation of water efficient landscapes in new
development and to reduce water waste in existing landscapes.
Water Quality Legislation
The federal Clean WaterAct(CWA)was amended in 1987 to address urban stormwater runoff pollution
of the nation's waters. In 1990,the United States Environmental Protection Agency promulgated rules
establishing Phase 1 of the National Pollutant Discharge Elimination System (NPDES) stormwater
program.
The California Regional Water Quality Control Board issued theAlameda Countywide NPDES Municipal
Stormwater Permit in 2003 to the Alameda Countywide Clean Water Program, of which Dublin is a
member. In October 2009, the California Regional Water Quality Contro Board issued the Municipal
Regional Stormwater NPDES Permit to the Alameda Countywide Clean Water Program, as well as
to permittees in Contra Costa County, Santa Clara County, San Mateo County, Fairfield-Suisun, and
Vallejo.Provision C.3 of the permit requires all jurisdictions to use their planning authorities to include
appropriate source control, site design, and stormwater treatment measures in development projects
to address both soluble and insoluble stormwater runoff pollutant discharges and prevent increases
in runoff flows from new development and redevelopment projects.This goal is to be accomplished
primarily through the implementation of low impact development(LID) techniques.
12.2.2 WATER SUPPLY
Potable Water
The Dublin San Ramon Services District (DSRSD) is 15 ,i are ilr 4,4,:.',cl
the water retailer for residents in the City of Dublin lUll:° 1 F .1 � a f�. .'P r
�' "' kt se i", i� sie Y Zone 7 of the Alameda County Flood Control & � ,�4 >Water Conservation District (also referred to as the t " i icna$!4 ^t " „,1 ^ i x
Zone 7 Water Agency, or Zone 7). Zone 7 obtains '14 !.� y�rr er,� �4 9 4'4
water most of its water supply from the State Water ,. s% a „, e r ��, t if-;
Project(SWP), with additional supplies derived from ± Its bum.: 'r .r`?u,r .,,
the local watershed and the Byron Bethany Irrigation District. Zone 7 uses the main groundwater
aquifers in the Tri Valley area to store imported water.Approximately eighty percent of the valley's water
comes from the SWP, traveling from the Sierra Nevada
'�
mountains through Lake Oroville and the Sacramento/
Our mission is to efficiendryprovide San Joaquin Delta.The water is then pumped into the
n;gr,twiggy w.stcweler and water South Bay Aqueduct near Tracy, where it enters the Tri-
servicos to &e conununitles we servo
n environmentally and ��ny Valley. Zone 7 also pumps DSRSD's groundwater quota
responsible manner. for delivery to DSRSD customers.
CI City of Dublin General Plan I Water Resources Element 12-3
Recycled Water
To improve the reliability of the Tri-Valley's water supply, particularly in dry years, DSRSD and East Bay
Municipal Utility District(EBMUD)created the San Ramon Valley Recycled Water Program(SRVRWP)in
1995.The partnership has built a water recycling plant adjacent to the DSRSD wastewater treatment
facility and a backbone transmission system that connects to DSRSD and EBMUD recycled pipelines.
DSRSD personnel operate these facilities on behalf of the partnership. Recycled water is used in the Tri
Valley area primarily by large irrigation customers: golf courses, parks, greenbelts, roadway medians,
schools, office complexes, and common areas in homeowner associations.A joint powers authority,
the DSRSD-EBMUD Recycled Water Authority (DERWA), governs the partnership. Two directors from
each agency serve on the DERWA Board of Directors.
Wastewater Collection and Treatment
DSRSD owns and operates sewers in the cities of Dublin and San Ramon and a wastewater treatment
plant in the City of Pleasanton. Under contract, DSRSD also treats wastewater collected by the City of
Pleasanton. DSRSD's service area is shown in Figure 12-1.
Regional View
:, SAN RAMON t " II II C,- )
y�Y-+,ei SAN to uwa
“tt:,,,,To r 1�'-!'"r RAMON I I II I1 (s, t
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Map Legend
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- 41M0111 Conl:a CoI.,COIn YD1'Atlelin:
-- ensting DSRSD eoundery
-- Camp emIS El re,nn,ndar,
Figure 12-1:DSRSD Service Area
Source:DSRSD Urban Water Management Plan(2010)
12-4 City of Dublin General Plan 1 Water Resources Element f
Two wastewater treatment plants serve Tri-Valley residents, businesses, and institutions. DSRSD
operates the plant located in the City of Pleasanton, which has a capacity of 17 million gallons per
day (MGD).The City of Livermore operates the other plant, which has a capacity of 8 MGD. Regional
wastewater disposal matters are the business of the Livermore Amador Valley Water Management
Agency (LAVWMA), a joint powers authority formed in June 1974 between DSRSD and the cities of
Pleasanton and Livermore.LAVWMA is responsible for maintaining the pipeline that transports treated
wastewater from the two treatment plants to San Lorenzo. It is discharged into San Francisco Bay by
the East Bay Dischargers Authority, another joint powers authority formed by cities and agencies in
the East Bay, which operates and maintains a large outfall system to the Bay.
12.2.3 WATER DEMAND AND 'USE
Potable and Recycled water use in Dublin has generally risen from 2002-2012, as illustrated in the
table below. Much of this increased water usage is the result of planned growth.
M'" r F'I* mA['P"W d.@uo JIUWi �AWdu U 111111 WIIA' ll IIII IIII 111" IIIIIIII IIII
� Nil Iiiu t� i I� p U:�1 Amass t� ' I I d1 � I
�u ��� IIII��oxullllldllmlill� '�lumhmnuullolltl@ Ilxlnlllll'iIIII�IeIIVuiIIN111411eoiuIMIIInIPoIIInIIIIIIoIJVialllun711eiur�illullllrllllur�lililll�lrriiulullllll� � I I h Ill���i I �
�2 DUBLIN SqN RAMON`SERVICESDISTRICTeWATERaDEMgIVD '
\. z r; , rat , 7M k(MILTL ONS OF GALLONSIPER YEAR) ✓n +r
&tTY E 0 L`S2b02 2003 �200�4 `^20 n006j i 2007.8 2 009 '2010_.. L2»0 1
Commercial 333.3 558.3 557.61 511.81 455,2 519.01405.91 278.5 262.41 266.5 267.4
Industrial 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Institutional 357.2 364.0 356.9 363.9 338.1 347.2 389.1 281.9 248.3 242.8 249.1
Irrigation 457.6 433.8 445.7 351.3 387.3 405.4 428.6 372.5 350.6 350.4 391.1
Multi-Family 204.4 227.2 235.3 268.1 261.2 284.3 312.9 320.8 323.5 330.4 337.2
Single-Family 941.7 959.6 1,041.8 1,011.9 1,050.2 1,074.7 1,094.5 1,005.4 957.5 954.6 1,075.5
TOTAL WATER
DEMAND 2,294.2 2,542.9 2,637.3 2,507.0 2,492.0 2,630.6 2,630.9 2,259.2 2,142.2 2,144.7 2,320.2
RECYCLED
WATER 14.9 99.5 72.9 319.8 182.3 301.7 306.0 315.9 295.8 355.5 398.7
Source:DSRSD(2013)
The largest categorical consumer of water is residential users, and more specifically, single-family
residential users. Although the total water demand over the past 10 years has increased for the
single-family residential category, the total number of single-family households has increased at a
greater rate than the total water demand rate.Therefore,the average annual consumption of a single-
. family household has decreased from 140,700 gallons per year in 2002 to 117,200 gallons per year
in 2012 (Source: DSRSD, 2013).This 16.4% decrease in the average household consumption is due
to many factors, including a greater use of water efficient features, installation of more water-efficient
landscapes, and greater public education regarding the importance of water conservation.
12.2.4 WATER CONSERVATION AND EFFICIENCY
DSRSD has a comprehensive Water Conservation Program in place that includes both supply- and
•
9t City of Dublin General Plan I Water Resources Element 12-5
demand-side measures, including audits, incentives, optimal management practices, enforcing
wastewater and landscape regulations, education programs, support activities, metering, and pipe
replacement. DSRSD also recommends that local cities require water conservation measures as a
standard feature in the design and construction of proposed development projects.
The City of Dublin currently utilizes several means to promote water conservation and efficiency in
new development:
• Implementation of Chapter 8.88 . �a � " i t r la �' ift, m'z '
of the Municipal Code (Water . I t , 1 �' 1 A 4,[4.''''° ` t o l .f
Efficient Landscape Regulations) �;.i t i , 4 'ar ?, 4 A ,
KK
which requires that development ,r �' ;7 1�"��q ,,, i p„r, � '
projects of a certain size and �� .��" �,iii�{ ''S '.�ri Wit t ,� �` wV
scope be designed with landscape '" ai a • • ' . ;t
materials and maintenance that P 141, 1,11 ®P DIJi"BMNIS-GfRB`GYN-iIMANli'
t
is sensitive to reducing water , �,.-„ro, �.0 r.,. ,
use. Chapter 8.88 conforms to „ri ` 1° q.,
the state mandate to either have
a local Water Efficient Landscape Ordinance or require that new projects conform to the
statewide Water Efficient Landscape requirements.
• Implementation of Chapter 7.94 of the Municipal Code(Dublin Green Building Code),with the
purpose of enhancing the design and construction of buildings and encouraging sustainable
construction practices in several categories including water efficiency and conservation.
• Participation and collaboration with outside organizations and agencies on programs to
educate the public and provide hands-on assistance to increase water conservation efforts.
The City is also committed to conserving water to the greatest degree +1111��B1�I�II 13w,, ilii!
BAl E4Arr. Yi j(
possible in public facilities such as community buildings and parks. The ;✓�N �APE��"off � E; :�
City follows the requirements of the Water Efficient Landscape Regulations ,''I#" „ • �b� ',
at all civic sites and implements the recommendations of the Bay Friendly �j' i > ,^ , "," '4
Landscape Guidelines for water-efficient landscapes. In addition, the City ;ems
has been aggressive in utilizing water efficient appliances and features ,f' 4 ° r-, rid '
in the construction of new civic buildings and when remodeling existing ti. • �2 e�' i
facilities. For example, the Shannon Community Center was designed and 1 ,i!..,:=.1%1 ii
constructed to LEED Silver certification standards, and included several ' � " , 41 ,$ u 1[
water conservation elements that contributed to that effort. ,'N�rit;,, '- r i�'�
12.2.5 WATER QUALITY, FLOOD PROTECTION, AND STORMWATER
MANAGEMENT
Historically, the Tri-Valley has experienced relatively frequent, but substantial,flooding because many
streams which drain large areas of impermeable sails converge in the area. During periods of intense
rainfall, runoff rapidly causes some stream flows to exceed floodway capacities and inundate adjacent
areas.
12--6 City of Dublin General Plan I Water Resources Element f°
i u9°-!`' ' iti a '�+ g, ' ,no- x ,. Extensive flood channel
k d'x4," `0 i� 4 gl f u J •
' ' ' h u di'h"�j r� S thr+4E ' improvements required of
' l�A Yi4, x .+ '�'�PS51
��� � � s Illy A. lV � t d'�„ �> d ,� f!
development projects during
F-�'4°c '7 s M' , , 'k '4143,' �. ( ° in,1 'HI iil , the past 20 years have
�r significantly reduced this t e
ry `^t ai r ti„4,„,,,,4,'f,,, , ,, ,3� '6,,t„ �' � I i 9 Y YP
xY,4 ''''./ 1# eau ''0),, < 441 , of flood hazard. As a result
'; e' .•- w sr cM, '&3�� of good planning and system
„ @ i `' ''";' °° h ` ' .4444: , maintenance, the Tri-Val ley
^ i+ �^ -r � � now experiences minimal
�J ''' N r , n 4 � , -" flood damage compared
„4 .$ f�v Q 1,+ _ ` 1°" :'" '4 •with many other areas of
411¢� nt� *,<z 7 ±' 0411 California.
t4A gWa p.� �+1IftIii!'!illy f W11 J Responsibility for flood
l 4h "�¢ �` ��tt tir u.4 protec tion in Dublin lies with
Zone 7, which maintains
improved flood-control channels and installs new drainage channels. Under Zone 7 permits,
development projects have improved many of the existing channels and have created new flood
protection facilities.Zone 7 continues to work with local jurisdictions and the development community
to identify means and methods to provide greater flood protection in its service area. In 2006, Zone
7 adopted the Stream Management Master Plan (SMMP), which incorporates multi-benefit projects
to address flood protection.
The local storm drainage system consists of underground pipes, local channels and watercourses,
and vegetated swales throughout newer neighborhoods.These facilities carry water runoff within the
drainage basin to the flood-control channels and further to regional stormwaterfacilities.Developers of
new projects must install adequately-sized storm drains to connect to the City's existing underground
storm drain network.
To accommodate future buildout in accordance with the General Plan,the City will continue to require
that new developments install appropriately-sized storm drains.The City also schedules improvements
to older portions of the storm drain network through the City's Capital Improvement Program.
Dublin currently utilizes several means and methods to ensure that the City's stormwater is properly
managed and treated by the time it enters regional flood control facilities in compliance with NPDES
and other required permits:
• Implementation of Chapter 7.20 of the Municipal Code (Watercourse Protection), which is
enacted to safeguard and preserve watercourses, protect lives and property, prevent damage
due to flooding, protect drainage facilities, control erosion and sedimentation, restrict
discharge of polluted materials,and enhance recreational and beneficial uses of watercourses.
• Implementation of Chapter 7.74 of the Municipal Code (Stormwater Management and
Discharge Control Ordinance), which is designed to ensure the future health, safety and
general welfare of Dublin citizens by eliminating non-stormwater discharges to the municipal
storm drain system and reducing pollutants in stormwater discharges to the maximum extent
practicable;
t City of Dublin General Plan 1 Water Resources Element 12-7
• Implementation of the Dublin Clean Water Program, which is a federally-mandated program
under the federal Clean Water Act.The purpose of the Clean Water Program is to eliminate
pollutants, such as oil, dirt, pesticides, litter, and other similar contaminants, from entering
the storm drain system so only clean water enters our waterways and ultimately the San
Francisco Bay.The City conducts public education and outreach efforts as well as responds to
reports of clean water violations; and
• Monitoring construction sites to ensure adequate Best Management Practices (BMPs) are
implemented to reduce water pollution during construction in compliance with the State
General Construction Permit issued by the California State Water Resources Control Board.
12.3 GUIDING AND IMPLEMENTING POLICIES
12.3.1 WATER SUPPLY
A. Guiding Policy '` �'..m IN'
1. Work with Zone 7 and DSRSD to secure an adequate water supply w
E ::: e water delivery to, existing and future customers m B. ing Policies rl ' y 1
i I ,�i61iiullW4, °1+ 141,,
1. In anticipation of planned future growth, continue working with i�'� ° '&1711,7 ° n'° ^;
DSRSD and Zone 7 to plan and provide for sufficient future water I 1 I�11 �I i,li i yw
supplies. i. IV, ��I IJ(»,)11(41,1 p M(
12.3.2 WAFER CONSERVATION AND EFFICIENCY IN EXISTING
DIEVER_OPMENT
A. Guiding Policy
1. Increase water conservation efforts and strive to maximize water use efficiency in existing
residential, commercial, and industrial buildings and grounds.
2. Support DSRSD in extending recycled water service to established areas of Dublin.
B. implementing Policies
1. Encourage DSRSD to continue offering free water saving devices to any DSRSD customer.
2. Encourage Zone 7 to continue its on-going rebate program for water-conserving fixtures and
appliances.
3. Continue collaborative efforts and programs with outside organizations such as the California
Youth Energy Services (CYES), which trains and employs local youth to provide resource
conservation audits and water/energy retrofits to local residences ("Green Home Audits").
4. Continue collaborative efforts with DSRSD to plan for and convert existing customers to
utilize recycled water.
12-8 City of Dublin General Plan I Water Resources Element $t
12.3.3 WATER CONSERVATION AND EFFICIENCY IN NEW DEVELOPMENT
A. Guiding Policy
1. Promote the conservation of water resources in new development
B. Implementing Policies
1. Continue implementation of the Water Efficient Landscape Regulations, which requires
grouping plants with the same water requirements together(hydrozoning),the installation of
water-efficient irrigation systems and devices, such as soil moisture-based irrigation controls,
and the minimal use of turf.
2. Support DSRSD's ongoing efforts to extend recycled water infrastructure ("purple pipe") to
new locations.
3. Continue implementation of the Green Building Code to ensure that the design, operation,
construction, use, and occupancy of every newly constructed building or structure is subject
to assessment of its efficiency features.
12.14 WATER CONSERVATION AND EFFICIENCY IN PUBLIC FACILITIES
A. Guiding Policy
1. Promote the conservation of water resources in public facilities.
2. Promote the use of recycled water in public facilities.
B. Implementing Policies
1. Retrofit existing parks with new irrigation controllers that link to a centralized irrigation
system that downloads daily weather reports from a local weather station and adjusts the
amount of irrigated water applied to each park each day.
2. At the completion of each public construction and/or capital improvement project, conduct
an irrigation audit to ensure proper water utilization.
3. Ensure that future publicly-owned facilities (e.g. street medians, park sites) have a healthy
growing environment by receiving soil that is appropriate to support plant growth.The soil is
typically provided by the developer dedicating the median and/or park site, so the soil to be
provided shall meet City standards.
4. Continue to demonstrate low water-use techniques at public parks and other City-owned
facilities.
5. During construction or reconstruction of public facilities,institute water conservation measures
such as hot-on-demand water faucets, low-flush toilets, and low water-using appliances to
the greatest degree possible.
6. In the design and construction of all public facilities, utilize Bay Friendly Landscape Guidelines
for water-wise landscaping.
7. When recycled water lines are extended to established areas in Dublin, examine retrofitting
public facilities and connecting existing public landscape irrigation systems to the recycled
water distribution system.
3e City of Dublin General Plan Water Resources Element 12-9
12.3.5 WATER QUALITY, FLOOD PROTECTION, AND STORMWATER
MANAGEMENT
A. Guiding Policies
1. Protect the quality and quantity of surface water and groundwater resources that serve the
community.
2. Protect water quality by minimizing stormwater runoff and providing adequate stormwater
facilities.
3. To minimize flooding in existing and future development, design stormwater facilities to
handle design-year flows based on buildout of the General Plan.
B. Implementing Policies
1. Support Zone 7's efforts to complete planned regional storm drainage improvements.
2. With the goal of minimizing impervious surface area, encourage design and construction
of new streets to have the minimum vehicular travel lane width possible while still meeting
circulation, flow, and safety requirements for all modes of transportation.
3. Discourage additional parking over and above the required minimum parking standards for
any land use unless the developer can demonstrate a need for additional parking.
4. Conserve the City's urban forest, including trees in parks as well as street trees, so as to
continue and enhance surface water filtration and community character.
5. Review design guidelines and standard details to ensure that developers can incorporate
clean water runoff requirements into their projects.
6. Maximize the runoff directed to permeable areas or to stormwater storage by appropriate site
design and grading, using appropriate detention and/or retention structures, and orienting
runoff toward permeable surfaces designed to manage water flow.
7. Review development plans to minimize impervious surfaces and generally maximize
infiltration of rainwater in soils, where appropriate. Strive to maximize permeable areas to
allow more percolation of runoff into the ground through such means as bioretention areas,
green strips, planter strips, decomposed granite, porous pavers, swales, and other water-
permeable surfaces. Require planter strips between the street and the sidewalk within the
community,wherever practical and feasible.
8. Continue conducting construction site field inspections to ensure proper erosion control
and materials/waste management implementation to effectively prohibit non-stormwater
discharges.
9. Support Zone 7 in updating and implementing its Stream Management Master Plan so as to
protect and enhance the water quality of streams and groundwater.
10. Ensure adequate setbacks from creeks/waterways and development. Retain existing
vegetation where feasible and, where necessary, plant buffers with native plant species.
12--10 City of Dublin General Plan Water Resources Element 2'