HomeMy WebLinkAboutPlanning Comm Reports/1994/01/26 (5)
City Planning Commission
Agenda Item for Meeting of January 26, 1994
Page 1
2.
PUBLIC HEARING:
PCM.94.20/PCA.94.02; Consideration of amendments to the City
Landscape Manual and associated amendments to the Municipal
Code. Citv initiated
A. BACKGROUND
In 1990, the California State Legislature enacted Assembly Bill 325, the Water Conservation in
Landscaping Act. AB 325 requires cities and counties to adopt a "Water Efficient Landscape
Ordinance" or be governed by a draft "Model Water-Efficient Landscape Ordinance" developed
by the State Department of Water Resources.
The Manual has been amended to satisfy AB 325, and thereby promote water conservation within
the City. In this regard, complete sections addressing Drought Tolerant Plantings, Water
Conservation for Landscaping, and Water Management Plan, have been added. A new section
on Fire Retardant Plantings has also been added, and certain other miscellaneous amendments
to update the manual to current practices from its last revision in 1978. Certain technical and
procedural amendments to the Municipal Code to reflect the revised provisions in the Manual are
included in the attached ordinance.
The Environmental Review Coordinator conducted an Initial Study, IS-93.09, of potential
environmental impacts associated with the implementation of the revised Manual and associated
Code amendments. Based on the attached Initial Study and comments thereon, the Coordinator
has concluded that there would be no significant environmental impacts.
B. RECOMMENDATION
1. Based on the Initial Study and comments on the Initial Study and Negative Declaration,
find that this project will have no significant environmental impacts and adopt the
Negative Declaration issued on IS.93.09;
2. Adopt Resolution No. PCM.94.20/PCA.94.02 recommending that the City Council
approve the amendments to the City Landscape Manual and associated amendments to
the Municipal Code in accordance with the findings contained in the attached Draft City
Council Resolution and Ordinance.
C. DISCUSSION
Water Conservation Measures CAB 325)
The landscape manual has been revised to include the water conservation measures called for by
AB 325. A representative of the State Department of Water Resources has reviewed the
document and certified its compliance with AB 325. The water conservation measures can be
summarized as follows:
City Planning Commission
Agenda Item for Meeting of January 26, 1994
Page 2
1. A water management plan is required for all industrial, commercial, and multi.family
projects. The water management plan is prepared by the property developer and provided
to the City as part of each approved landscape and irrigation program. The water
management plan includes specific water conservation methods and any expected water
savings on each project. A sample water management plan has been provided within the
revised Manual.
2. Reclaimed water use is required for all industrial, commercial, and multi.family projects,
and all developer. installed landscaping within single-family projects. Where reclaimed
water is not available, an exception can be made once a written exemption from the local
water agency has been received. Provisions for converting existing irrigation systems to
reclaimed water. and dual distribution systems are also provided for in the Manual.
3. All landscape installations subject to the provisions of the Landscape Manual are required
to be certified for completion by a Landscape Architect, Civil Engineer, Architect, or
landscape contractor prior to building occupancy. Certification will ensure proper and
complete landscape installation in accordance with approved planting and irrigation
programs.
4. New landscape design criteria have been added that support low. water use landscape
design and efficient water-use irrigation design. These criteria include promoting the use
of specialty irrigation product, to ensure state.of.the.art irrigation design.
5. A public information and education program on water conservation is required for single.
family projects. This program will require developers to provide written information on
water conservation techniques to all new homeowners. In addition at least one home
within each model complex is required to emphasize drought tolerant plantings. Signs
are required to direct the attention of prospective purchasers to drought tolerant features
within the model landscape design.
Drought Tolerant/Fire Retardant P]antings.
In addition to the new sections within the Manual to comply with AB 325, a new section on
"Fire Retardant/Drought Tolerant Plants has been added to bring the text of the Manual into
conformance with Council Policy 476.04, which mandates the use of drought tolerant and fire
retardant plantings. This policy has been implemented by staff since it's adoption in 1988, but
has yet to be fonnally incorporated into the text of the Landscape Manual.
Miscellaneous Amendments
The most significant of the miscellaneous revisions to update the Manual to current practice are
as follows:
City Planning Commission
Agenda Item for Meeting of January 26, 1994
Page 3
1. The Landscape Manual currently requires that a site be improved and brought into current
conformance with the Landscape Manual when any remodeling or site (other than single
family) improvement exceeds a dollar value of $10,000. This dollar amount was
established in 1978. In order to reflect a comparable value in today's market, the dollar
value has been increased to $20,000. This is consistent with the dollar value now used
by Engineering for public improvements.
2. The Manual now reflects the fact that the inspection responsibility for the City's Open
Space districts has been transferred from the City Landscape Architect to the Parks
Landscape Architect.
3. A requirement has been added to require water efficient, drought tolerant landscaping
within private open space areas other than those used for recreation.
Review
The revised Landscape Manual has been reviewed by the local chapter of the American Society
of Landscape Architects. California Native Plant Society, Sierra Club, Chamber of Commerce,
Crossroads, local water purveyors, SANDAG, and other City departments. To date, the City has
not received any adverse comments or special request from outside groups.
The amended Landscape Manual has been reviewed by the Department of Water Resources and
found to be in compliance with AB 325. Furthermore, staff has reviewed the revised City
Landscape Manual for consistency with the Regional Growth Management Strategy (RGMS).
The RGMS requires that local jurisdictions adopt ordinances, or their equivalent, that address
water reclamation and water use efficiency. Based on this review, staff has made the
detennination that the revised landscape manual contains provisions that are consistent with and
meet the intent of the RGMS and AB 325. The Department of Water Resources is requesting
for their records a copy of the final resolution indicating Council approval.
Municipal Code Amendments
The amendments to the Landscape Manual require certain technical and procedural amendments
to the Municipal Code. These are included in the attached draft City Council ordinance.
D. CONCLUSION
The amendments to the Landscape Manual and associated Municipal Code amendments will
facilitate water conservation and fire safety, and update the Manual with respect to current
practices and procedures. As a result, we are recommending approval in accordance with the
attached resolutions and ordinance.
(Note: All additions within the text of the amended manual are shown as "shaded text". All
deletions are shown as "strike.through").
WPC F:\HOME\PLANNING\1438.93
RESOLUTION PCM-94-20/PCA-94-20
RESOLUTION OF THE PLANNING COMMISSION OF THE
CITY OF CHULA VISTA RECOMMENDING CITY
COUNCIL APPROVAL OF THE CITY LANDSCAPE
MANUAL, CITY COUNCIL COMPANION ORDINANCE,
ASSOCIATED AMENDMENTS TO THE MUNICIPAL CODE
OF THE CITY OF CHULA VISTA, AND REPEAL OF CITY
COUNCIL POLICY #476-04
WHEREAS, Assembly Bill 325 (1990), the Water Conservation in Landscaping Act,
requires cities and counties to adopt a water efficient landscape ordinance or be governed by a
model code deyeloped by the State Department of Water Resources; and
WHEREAS, the Planning Department has prepared amendments to the City Landscape
Manual and associated amendments to the Municipal Code which would implement the water
conservation measures called for by AB 325, and which would also update the Manual to current
practice from its last fevision in 1978; and
WHEREAS, a representative of the State Department of Water Resources has reviewed
the draft revised Landscape Manual and concluded that its provisions incorporate all matters
required by the model code (now in effect by operation of law); and
WHEREAS, the Environmental Review Coordinator conducted an Initial Study, IS-93.09,
of potential environmental impacts associated with the implementation of the revised Manual and
associated amendments to the Municipal Code, and based on the Initial Study and comments
thereon, the Coordinator concluded that there would be no significant environmental impacts,
and recommended adoption of the Negative Declaration issued on IS.93.09, companion
ordinance, modifying sections of the municipal code, repealing Council Policy #476.04; and
WHEREAS, the Planning Director set the time and place for a heafing on said
amendments and notice of said hearing togethef with its purpose, was given by its publication
in a newspaper of general circulation in the City at least 10 days prior to the hearing; and
WHEREAS, the hearing was held at the time and place as advertised, namely 7:00 p.m.,
January 26, 1994, in the Council Chambers, 276 Fourth Avenue, before the Planning
Commission and said hearing was thereafter closed; and
WHEREAS, SANDAG, serving as the Regional Growth Management Strategy (RGMS)
Review Board, has recommended that all local agency plan amendments, regulations, or other
actions related to the Strategy's implementation be subject to a finding of consistency; and
WHEREAS, the RGMS calls for a water reclamation and water efficient ordinances, Of
equivalent, to be adopted by local jurisdictions for all new construction (other than single
family); and
RESOLUTION PCM-94-20/PCA-94-20
Page 2
WHEREAS, the revised Chula Vista Landscape Manual contains provisions for water
reclamation and efficiency measures, and adoption of the revised Landscaped Manual and
associated amendments to the Municipal Code brings the City into conformance with AB 325
and the RGMS Strategy.
NOW, THEREFORE BE IT RESOLVED that the City Planning Commission does
hereby find that the amendments will have no significant environmental impacts and adopts the
Negative Declaration issued on IS-93-09.
BE IT FURTHER RESOLVED that the Planning Commission recommends that the City
Council adopt the attached Draft CitY Council Resolution approving the amendments to the City
Landscape Manual, superseding the model code, and repealing Council Policy No. 476.04, and
adopt the attached Draft Ordinance making the associated Municipal Code amendments, both
based on the findings therein;
BE IT FURTHER RESOLVED that a copy of this resolution be transmitted to the
City Council.
PASSED AND APPROVED BY THE PLANNING COMMISSION OF CHULA VISTA,
CALIFORNIA, this 26th day of January, 1994, by the following vote, to-wit:
AYES:
NOES:
ABSENT:
ABSTENTIONS:
ATTEST:
Thomas A. Martin, Chairman
Nancy Ripley, Secretary
WPC F:\HOME\PLANNING\1481.93
DRAFf RESOLUTION NO.
RESOLUTION OF THE CITY COUNCIL OF THE CITY OF
CHULA VISTA ADOPTING THE REVISED LANDSCAPE
MANUAL OF THE CITY OF CHULA VISTA,
SUPERSEDING THE STATE MODEL CODE, AND
REPEALING COUNCIL POLICY NUMBER 476-04
WHEREAS, Assembly Bill 325 (1990), the Water Conservation in Landscaping Act,
requires cities and counties to adopt a water efficient landscape ordinance or be governed by a
model code developed by the State Department of Water Resources; and
WHEREAS, the Planning Department has prepared revisions to the City Landscape
Manual which would implement the water conservation measures called for by AB 325, and
which would also update the Manual to current practice from its last revision in 1978; and
WHEREAS, a representative of the State Department of Water Resources has reviewed
the draft revised Landscape Manual and concluded that it's provisions incorporate all matters
required by the model code (now in effect by operation of law); and
WHEREAS, the Environmental Review Coordinator conducted an Initial Study, IS.93-09,
of potential environmental impacts associated with the implementation of the revised Manual and
associated amendments to the Municipal Code, and based on the Initial Study and comments
thereon, the Coordinator concluded that there would be no significant environmental impacts,
and recommended adoption of the Negative Declaration issued on IS-93-09; and
WHEREAS, the Planning Commission held a public hearing at 7:00 p.m., on January
26, 1994, and voted _ to adopt Resolution PCM.94.20/PCA-94-20 recommending that the
CitY Council approve the Manual amendments and companion amendments of the Municipal
Code and repeal Council Policy #476-04; and
WHEREAS, the City Clerk set the time and place for a hearing on said amendments and
notice of said hearing together with its purpose was given by its publication in a newspaper of
general circulation in the City at least 10 days prior to the hearing; and
WHEREAS, the hearing was held at the time and place as advertised, namely January
26, 1994, in the Council Chambers, 276 Fourth Avenue, before the City Council and said
hearing was thereafter closed; and
WHEREAS, SANDAG, serving as the Regional Growth Management Strategy (RGMS)
Review Board, has prepared a RGMS which includes a self.certification process to ensure
consistency between the strategy's recommended actions and relevant plans, policies and
ordinances of local jurisdictions; and
Draft Resolution No.
Page 2
WHEREAS, the RGMS calls for water reclamation and water efficient ordinances, or
equivalent, to be adopted by local jurisdictions for "all new construction" (other than single
family); and
WHEREAS, the CitY of Chula Vista has completed a Consistency Checklist and have
found the Revised Chula Vista Landscape Manual to be consistent in meeting the intent of AB
325, and in achieving the Quality of Life Standards and Objectives contained in the RGMS.
NOW, THEREFORE BE IT RESOLVED THAT THE CITY COUNCIL does hereby
find that the amendments have no significant environmental impacts and hereby adopts the
Negative Declaration issued on IS-93.09.
BE IT FURTHER RESOLVED that the City Council does hereby find that the revised
Chula Vista Landscape Manual contains provisions for water reclamation and efficiency
measures, and that adoption of the Revised Landscaped Manual and associated amendments to
the Municipal Code will bring the City into conformance with AB 325 and the RGMS Strategy.
BE IT FURTHER RESOLVED that the City Council does hereby approve the
amendments set forth in the revised City Landscape Manual on file in the City Clerk's office,
Document Number
BE IT FURTHER RESOLVED that the revised City Landscape Manual, as amended,
shall supersede the state model code, and become effective when the companion ordinance
changes become effective.
BE IT FURTHER RESOLVED that City Council Policy No. 476-04 is hereby repealed,
effective when the comparison ordinance changes become effective.
Presented by
Approved as to form by
Robert A. Leiter
Director of Planning
Bruce M. Boogaard
City Attorney
WPC F:\HOME\PLANNING\1484.93
ORDINANCE NO.
AN ORDINANCE OF THE CITY OF CHULA VISTA
AMENDING SECTIONS 19.14.030, 19.14.485 AND 19.14.486 OF
THE MUNICIPAL CODE RELATING TO THE REVISED
LANDSCAPE MANUAL
WHEREAS, Assembly Bill 325 (1990), the Water Conservation in Landscaping Act,
requITes cities and counties to adopt a water efficient landscape ordinance or be governed by a
model code developed by the State Department of Water Resources; and
WHEREAS, the Planning Department has prepared amendments to the City Landscape
Manual which would implement the water conservation measures called for by AB 325, and
which would also update the Manual to current practice from its last revision in 1978; and
WHEREAS, said amendments to the Landscape Manual require certain technical and
procedural amendments to the Municipal Code; and
WHEREAS, the Environmental Review Coordinator conducted an Initial Study, IS.93.09,
of potential environmental impacts associated with the implementation of the revised Manual and
the associated amendments to the Municipal Code, and based on the Initial Study and comments
thereon, the Coordinator concluded that there would be no significant environmental impacts, and
recommended adoption of the Negative Declaration issued on IS.93.09; and
WHEREAS, on January 26, 1994, the City Planning Commission held a public hearing
and by a vote of approved Resolution No. PCM.94.20/PCA.94.02 recommending that
the City Council approve the proposed amendments to the Landscape Manual and associated
amendments to Municipal Code and repeal Council Policy #476.04; and
WHEREAS, the City Clerk set the time and place for a hearing on said amendments to
the Landscape Manual and associated amendments to the Municipal Code and notice of said
hearing together with its purpose was given by its publication in a newspaper of general
circulation in the City at least 10 days prior to the hearing; and
WHEREAS, the hearing was held at the time and place as advertised, namely
in the Council Chambers, 276 Fourth Avenue, before the City Council and said hearing was
thereafter closed.
NOW, THEREFORE, the City Council of the City of Chula Vista does hereby find,
detennine and ordain as follows:
SECTION I: That the amendments to the Municipal Code, PCA.94-02, will have no
significant environmental impacts and hereby adopts the Negative Declaration and Addendum
issued on 15-93-09.
SECflON II: That the public necessity, convenience, general welfare, and good zoning
practice justifies the amendments, and that the amendments are consistent with the City of Chula
Vista General Plan.
SECflON III: That Section 19.14.030 of the Chula Vista Municipal Code is amended
to read as follows:
19.14.030 Zoning administrator-Actions authorized without public hearing.
The Zoning Administrator is authorized to consider and to approve, disapprove or modify
applications on the following subjects, and/or issue the following required penTIits without setting
the matter for a public hearing:
A. Conditional use penTIit: The Zoning Administrator shall be empowered to issue
conditional use penTIits, as defined herein, in the following circumstances:
1. Where the use to be permitted does not involve the construction of a new building
or other substantial structural improvements on the property in question.
2. Where the use requiring the penTIit would make use of an existing building and
does not involve substantial remodeling thereof.
3. For signs, as defined herein, and temporary tract houses, as limited herein.
4. The Zoning Administrator is authorized to consider and to approve, deny, or
modify applications for conditional use penTIits for carnivals and circuses. The
Zoning Administrator shall set the matter for public hearing in the manner
provided herein.
5. Churches.
6. Establishments that include the sale of alcoholic beverages for off. site use or
consumption, located in the C.N zone. The Zoning Administrator shall hold a
public hearing in accordance with Sections 19.14.060.19.14.090 upon giving
notice thereof in accordance with Sections 19.12.070.19.12.080. A conditional use
permit shall not be granted unless the Zoning Administrator or other issuing
authority finds in his or her sole discretion, and based on substantial evidence in
view of the entire record, that all of the facts required by Section 19.14.080 exist,
and that approval of the penTIit will not result in an overconcentration of such
facilities. Overconcentration may be found to exist based on (1) the number and
location of existing facilities; (2) compliance with State Alcohol Beverage Control
overconcentration standards in effect at the time of project consideration; (3) the
impact of the proposed facility on crime; and (4) the impact of the proposed
facility on traffic volume and traffic flow. The Police Department or other
appropriate City departments may provide evidence at the hearing. A penTIit to
f:\home\plalU1mg\l490.93
Page 2
operate may be restricted by any reasonable conditions including but not limited
to limitations on hours of operation.
The City Council shall be infonned of the decision on each such permit by the
City Clerk when the decision is filed in accordance with Section 19.14.090. The
decision of the Zoning Administrator may be appealed.
Such appeal shall be directed to the City Council, rather than the Planning
Commission, and must be filed within ten (10) days after the decision is filed with
the City Clerk, as provided in Section 19.14.100. If appealed within the time
limit, said appeal shall be considered in a public hearing conducted by the City
Council, in the same manner as other appeals pursuant to Sections 19.14.120 and
19.14.130, except that the Council must make the same written findings required
of the Zoning Administrator herein, in order to grant the permit.
B. Variances: The Zoning Administrator shall be authorized to grant variances for limited
relief in the case of:
1. Modification of distance or area regulations;
2. Additions to structures which are nonconforming as to side yard, rear yard, or lot
coverage, providing the additions meet the requirements of the zoning ordinance
affecting the property;
3. Walls or fences to exceed heights permitted by ordinances. Modifications
requested in said applications for relief to be administered with the requirement
for a public hearing shall be limited to deviations not to exceed twenty percent of
the requirements imposed by ordinances.
C. Site, plan and architectural, and landscape plan approvals. The Zoning Administrator
shall be empowered to grant site plan, aRE! architectural plan and landscape plan approval
as provided herein.
D. Performance standard procedure. The zoning administrator shall be authorized to issue
a zoning permit for uses subject to performance standards procedures, as provided herein.
E. Home occupations. The Zoning Administrator shall be authorized to grant permits for
home occupations, as defined and regulated in Section 19.14.490.
F. Fees. A fee, in the amount as presently designated or as may be in the future amended
in the Master Fee Schedule, shall accompany each application for a variance or
conditional use permit or modifications thereto considered by the zoning administrator
without a public hearing.
In regard to applications on any of the aforementioned subjects, the Zoning Administrator
shall set a reasonable time for the consideration of the same and give notice thereof to the
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Page 3
applicant and to other interested person as defined in this title. In the event objections or protests
are received, the zoning administrator shall set the matter for public hearing as provided herein.
SECTION IV: That Section 19.14.485 of the Chula Vista Municipal Code is amended
to read as follows:
19.14.485
Landscape plan approval-Purpose-Required when.
The purpose of landscape plan approval is to determine compliance with this title and the
provisions of the landscape manual of the city. Landscape plan approval shall be required for
the following projects: Multiple.family, commercial, industrial, planned unit development,
unclassified uses, remodeling over ten twentv thousand dollars for the above uses, developments
with precise plans, parking lots with five or more stalls and graded slopes.
SECTION V: That Section 19.14.486 of the Chula Vista Municipal Code is amended to
read as follows:
19.14.486
Landscape plan approval-Application-Accompanying documents-Fee.
Application for landscape plan approval shall be made to the director of planning zoning
administrator and shall be accompanied by the drawings and information prescribed by the
landscape manual. Each application shall also be accompanied by the Required Filing Fee(s).
SECTION VI: This ordinance shall take effect and be in full force and effect on the
thirtieth day from and after its adoption.
Presented by
Approved as to from by
Robert A. Leiter
Director of Planning
Bruce M. Boogaard
City Attorney
f:\bome'planning\1490.93
Page 4
DRAFT
REVISION
January 17, 1994
CITY OF CHULA VISTA
LANDSCAPE MANUAL
Adopted by City Council Res. 7858 on August 5, 1975
Amended by City Council Res. 9235 on August 22, 1978
Amended by City Council Res. on
TABLE OF CONTENTS
INTRODUCTION .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 1
L GENERAL LANDSCAPE STANDARDS ............................ 2
2. LANDSCAPE ELEMENTS ...................................... 3
3. LANDSCAPE PLANS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4
4. PLAN REVIEW PROCESS ...................................... 7
5. LANDSCAPING WITHIN THE PUBLIC RIGHT-OF-WAY OR TREE
EASEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6. PARKING AREAS.. . .. . .. . . ... . .. . .... .. .. . .. . .... . .. . .... . .. 10
7. POLE SIGN PLANTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 12
8. EROSION CONTROL SLOPE PLANTING . . . . . . . . . . . . . . . . . . . . . . . . . .. 12
9. MAINTENANCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 12
10. DECORATIVE LIGHTING ...................................... 13
11. SPECIAL STANDARDS FOR PLANNED UNIT DEVELOPMENTS.. ....... 13
12. SPECIAL STANDARDS FOR MULTI-FAMILY DEVELOPMENTS.. ... . ... 15
13. BONDING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 15
14. STANDARD SPECIFICATIONS .................................. 15
15. IRRIGATION. . . . . . . . . . . '. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 17
16. WATER CONSERVATION FOR LANDSCAPING..................... 27
17. WATER MANAGEMENT PLAN.................................. 29
18. FIRE RETARDANT/DROUGHT TOLERANT PLANTS.. ... . ........ .... 30
19. GLOSSARY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 32
20. EXHIBIT "A" SAMPLE WATER MANAGEMENT PLAN................ 36
INTRODUCTION
It is with considerable pleasure that the Chula Vista Planning Department submits the lIIlepted
~~~~ Landscape Manual to the people, design professionals, and contractors of the Chula Vista
Planning Area. The fleW mY!~ manual incorporates much of the technical information
embodied in the old manual, but places greater emphasis upon ~~rp1,jAmin!1,jni!!Agy~~e~
l~mr*-flpm~~#!!A~mI!A~g~m~I.piq_~; Landscaping can no longer be regarded as simply
botanical decoration. It also can no longer be limited to the remedial role of tempering poor
building designs, ineffective land plans, or insensitive highway plans. Acceptable landscaping
must meet the public's demand for orderly growth, improved amenity, aesthetic qualitY, and
environmental sensitivity. Cities are the masterpiece of man, and their comprehensive landscape
must conform and promote his highest ideals.
In terms of landscape planning, the City is responsible for the protection of two inherent values
of the existing landscape and future changes in the landscape. The first and most commonly
thought of reason for landscaping is its aesthetic value. Visual qualities are protected by
minimum planting requirements and good landscape design. A second, and by no means less
important value is that plants are the least expensive and most appropriate form of creating air
qualitY and erosion control. When new development or redevelopment takes place, it typically
involves the disturbance of natural slopes and the destruction of some topsoil. Replanting of
graded slopes accomplishes the following:
...
Checks wind erosion
Checks water erosion
Rebuilds the soil
...
...
...
EMances the appearance of the area
The alternative to planting is, of course, paved slopes and the excessive use of paved channels.
Planting to eMance and protect the citY-scape is a simple, logical approach to conservation of
the qualitY environment desired by all.
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1. GENERAL LANDSCAPE STANDARDS
1.1 Single familv and two familv dwellings. The construction of single family homes
or duplexes on individual lots with no graded s10pes does not ijprm\\1.!y require the
submission of a lwulseajJiRg 1;m~9~~;pI!mgpg!m4.m1g~ij9ij pla~ however, I,\t
~~~~t9p~mp4~ln9m~ip~X~9\~IDgl~~~IY!m919rm9IB~gYm~~1~9m~
~pmpl~~~ij!4l~r~\!g~t9~ggillit~4f9qgnttml~!mtJ!m9~q~P~pl!m;~!~qi
~~Qmt9!'ifi~!,i9U9Bwi\tiF9ig;y~B9B~#i,j!1Wqq~~~H\\1.!OO'pt9iaq~m!!!'!B~W
b9~wn~~;Qn~ppm~~n!4!P9~~g~lgp~~q!,!g!!l~gllnB9B~tP!R~~8qy~
P\m1tlM~~~94iiQpgl1.ttQ!~t!m~t~~tW'~~wlmi#m~J!ID~~1*g~~igQ; Planting and
irrigation plans are also required for lIP tflese areas zoned PUD (Planned Unit
Development) or P (Precise Plan) wherein specific landscaping requirements are
part of the approved plan. In addition, the creation of any slope which requires
a grading pernUt will require !~ng~9i\1*; planting and irrigation plans. An
irrigation system will be required on all slopes over 6 feet in vertical height.
The only requirement for 19~npt~q4ingJiW4~q~p~ipl!mqqg!mggpgj,\#Qq plans
will be one street tree per lot. Each lot with a width of 60 feet or less will
provide one street tree. Lots wider than 60 feet shall provide a street tree every
40 feet. Trees shall be planted in the public right of way or in a tree easement.
Ne PlaR is Biffi4~j,\p~P!!mHPg!!ti9gpg~!1,g9P!im~ are required hewever, m#~
i#9iq~t~ tree sizes and species mllst be in accordance with the City requirements
for street trees (see Chapter 12.32 of the Chula Vista Municipal Code). Location
of trees must be verified and approved by all utility companies,!m9tH~~t#B9i
!Jiia~i9u....gl1!!l~~p1is...~9t~~R~p~~ut;
1.2 Development other than single family and duplex construction. The following
projects will require the submission and approval of eemplete landscape plaRs,
iRe1I1EliRg planting and irrigation plans, prior to the issuance of building pernUts.
(See sections 4.1, 4.2, 4.3 for processing.)
... Multiple family
... Commercial
... Industrial
... Planned Unit Developments
... Unclassified uses
WPC F:'HOME"J'LANNING\LANDSCAP\DRAFTl
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*
Remodels $10,000 with a valuation of $20,000 or more for the above uses
Projects requiring Precise Plans
Parking lots with five or more stalls
Graded slopes
*
*
*
2. LANDSCAPE ELEMENTS
2.1 Grading. All grading shall conform to City grading standards. (See Chapter
15.04 of the Municipal Code.)
2.2 Planting. All areas of the site on which new grades have been created or
vegetation has been disturbed will be planted. One of two types of plantings
listed below will be required:
2.2.1 Type I plantings may require all ongoing water treatment supplemental
irrigation which is greater than natural rainfall, to ensure a manicured and
healthy appearance. Generally, all visible areas adjacent to the right of
way will be Type I plantings. The City Landscape Architect may
designate any other areas as Type I if as required to maintain the aesthetic
quality of the community. Included in Type I planting will be the
controlled use of "fire retardant/drought resistant" planting strips necessary
between structures and natural open space areas to be selected from the
"FIRE RET ARDANT/DROUGHT TOLERANT PLANTS" listed on page
2.2.2 Type II plantings are defined as drought tolerant by the characteristic that,
once established, the plants will survive and only grew grow only with
natural rainfall. For example, Type II plantings could consist of
"hydro. seeding" with drought tolerant and selective native vegetation
which is irrigated in addition to container plantings which may require
temporary irrigation until materials are established.
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2.3 Irrigation. lITigation either by a permanent automatic sprinkler system or
manually controlled sprinkler system shall be installed as appropriate to the type
of planting served. Generally Type I plantings will require a pennanent automatic
sprinkler system. Type II plantings will require a temporary sprinkler system. A
few small plantings of either type may be served by a hose bib if the hose bib is
no further than 50 feet from any point in the planting area.
2.4 Decorative Landscaping. The use of architectural features, paving, fences, walls,
mounds, boulders, gravel, lighting, decoratiye water features, aRd inert ground
covers, and organic mulches (3" deep) is encouraged in conjunction with
landscape plantings, if they are well designed and compatible with community
aesthetic values. Recirculating water shall be used for decorative water featUres;
Plantirtgs which are decorative in nature, and having similar Water use, shall be
grouped together.
2.5 Earthen Mounds. Mounds which are used as screens and/or to receive plant
material shall slope no steeper than 2: 1. (Example: a 2.112 foot high mound with
a rounded top would require a minimum planter width of approximately 14 feet.)
3. LANDSCAPE PLANS
3.1 GENERAL REQUIREMENTS. Landscape; planting and irrigation plans shall be
prepared by a registered landscape architect or by a person who demonstrates to
the satisfaction of the Director of Planning or his designated representative by the
completeness and content of his plan that he has sufficient knowledge of irrigation
systems, characteristics of plant materials, design principles, planting techniques,
soil characteristics and grading principles, to cause the landscapeitJt!Wting!W9/
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!IT!ggBQp plan~ to achieve its objective (such as erosion control, screening of a
storage area, beautification of the development, etc.) without causing such
problems as uprooting of sidewalks, loss of sight distance, or death or
deterioration of the plant materials. In general, a higher degree of professionalism
shall be required of !\jpthe larger landsGape projects than of the smaller ones.
3.1.1 Plans shall include the name, address phone number, date, professional
license number (as required by the ca1iforniastate licensing board) and
signature of person who prepared the plans.
3.1.2 Plans shall be prepared in such a manner as to delineate all proposed
improvements in a clear, accurate, and complete manner. All existing
utilities and structures shall be shown.
3.1.3 Planting and irrigation plans will be submitted on 24" x 36" blueline or
blackline copies. When planting and irrigation plans are required by the
Grading Ordinance, they shall be prepared in ink on a standard Chula
Vista "D" sheet MYLAR (24" x 36" overall dimensions) which is available
in the EngineeringP!iYj$j9n9fj;l\~i'l3i~t#\~9rli$ Department. An alternate
method of preparation is to draw the plan in pencil on a standard Chula
Vista "D" sheet vellum (also 24" x 36"). Upon final approval of the plan,
however, a mylar reproduction shall be provided by the applicant.
3.2 Landscape. Planting and Irrigation Plan Requirements.
3.2.1 Installation and size and location of plants.
3.2.1 Symbolic representation of mature size of proposed plants.
3.2.2 Botanical and common names of all plants including seeds or stolons to
be planted.
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3.2.3 Specification of,~~.; quantitY, qualitY, and installation of plants, seeds, soil
amendments, herbicides, insecticides, and fertilizers.
3.2.4 Details of various landscape fean'lres as required to clearly derme the
intended finished installation.
3.3 Irril!ation Plan.
3.3.1 Static water pressure available at the meter.
3.3.2 Meter size and location.
3.3.3 Point of connection to water source.
3.3.4 Type, size, and location of bacldlow device(s) proposed.
3.3.5 Type, size, and location of control valves.
3.3.6 Type, size and location of automatic controller, if applicable.
3.3.7 Type, size, class and location of all pipes.
3.3.8 Type and size of all conduits, ~J!iy~i or chase pipes.
3.3.9 Type, size and location of all irrigation heads.
3.3.10 Elevations sufficient to calculate energy gradient gain or loss in any given
circuit and to determine the need for pressure reduction, pressure relief or
air release devices when elevation variations create a head (psi) gain or
loss of ten (10) pounds or more.
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3.3.11 Provide model(s)/brand(s) of irrigation equipment specified or complete
description of equipment as a material and performance specification.
3.3.12 Show all existing underground and overhead utility lines.
3.3.13 Refer to the sample irrigation plan and/or consult the City Landscape
Architect if necessary.
3.4 Other Plans (if applicable)
3.4.1 Outdoor lighting plan.
3.4.2 Special grading for decorative purposes (mounds, waterways, etc.).
3.4.3 Shop drawings of entrance signs, directional signs, landscape furniture, etc.
4. PLAN REVIEW PROCESS
4.1 Slope Planting and Irrigation. The procedure for processing !i1,j.'Ig$q*p~;Ii'!Wq!!g
~P9ipig*j:j9#P!*!1$j:'9r slope planting$ and irrigation plans is as follows:
4.1.1 Submit four (4) copies of all required slape l~ri!$s~p~i planting, !Wi!
irrigation plans, and other plans, if applicable, to the Engineering Department.
(See Section 3.1.3 for map size.)
4.1.2 Submit three sets of plans to local utility companies for review.
4.1.3 Plans will be reviewed by the Planning, Public Works and Parks and
Recreation Departments for compliance with applicable ordinances.
4.1.4 When plans have been checked, applicant will be notified Pym~(Ig;9j~g!
J?:pgiri~~r so that he($p~ may pick up the plans and make the necessary
corrections. Four (4) copies of the corrected plans and the check prints
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will be resubmitted to the Engineering Division 9!~lj~pjjpnF~9t~~
p~p~~ti~ for further checking. If corrected plans are acceptable, they
will be approved by the Direetom of Planning, PHblic Works, and BHilding
and HOllsing, ~ttY!+#iid$q~p~!Nt\;nH~9fj (and Director of Parks and
Recreation, if an Open Space Maintenance District is involved).
4.1.5 Following approval, the applicant shall furnish the Engineering Division
i;if~IJ~RiiPlt\;~9tK~P~p~~>>t with four (4) blueline or blackline copies
of the signed plans. If the plans were prepared on vellums, applicant will
also furnish one complete set of mylar reprodHstionsm)mj!~.
4.2 New Construction. The procedure for processing planting and irrigation plans for
new construction (see Section 1.2) shall be as follows:
4.2.1 Submit three (3) copies of J;lJid$\;~Pii; planting Of;(nd irrigation plans to the
Building Department with all required building plans. (See Section 3.1.3
for map size.)
4.2.2 Submit three sets of plans to local utility companies for review.
4.2.3 Plans will be reviewed by Planning and Public Works Departments for
compliance with applicable ordinances. When the plans have been checked,
the applicant will be notified so that het~!i~ may pick up the plans and
make the necessary corrections.
4.2.4 When the plans have been checked, the applicant will be notified so that
he/she may pick lip the plans and make the nesessarj' eorrections.
44A Three (3) copies of the corrected plans and the check prints will be
resubmitted to the Engineering Division of the Public Works Department
for further checking.
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4.2.5 If corrected plans are acceptable, they will be approved by the Planning
aHd Public 'Norks Departments.
4.3 Inspection. All open space districts which require the installation of planting and
irrigation must be inspected and certified in writing by the registeredpmj~~
Landscape Architect that the project is complete according to the plans. The
certification must be received by the City of Chula Vista prior to the inspection
and approval by the Gity IN#!9i Landscape Architect or designated representative.
5. LANDSCAPING WITHIN THE PUBLIC RIGHT -OF- WAY OR TREE EASEMENT
5.1 Upon approval by the Department of Public Works, shrubs or plants attaining
more than two feet in height upon maturity may be planted in the public rights of
way, provided that they are not planted within 30 feet of any intersection of the
public right of way.
5.2 Street trees are designated and/or approved by the Department of Public Works.
Any inquiries concerning street trees will be directed to the Department of Public
Works.
Street Median Landscaping Per Council policy: "The characteristic island design
shall provide for both hardscape forms and planting areas~ . Islands shan be
individually designed So as to enhance the surrounding street Scene in the best
Meniafl Island hardscape is established as 65 percent of the surface area
of the median including the area adjacent to the left-turn lane.
Median island planting and irrigated area is established as 35 percent of
the surface area of the entire median.
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These minimum public street standard proportions may be e~ceeded
subject to the review and approyal of the CitY Landscape Architect; subject
to the developer paying the added installation cost; and if themediari is to
be maintained privately through an open spaceasseSsmen.t district or
master homeowner's association.
5.4 An encroachment permit will be required for any irrigation system within the right
of way.
5.5 Tree sizes and species must be approved and in accordance with the City
requirements. (See Chapters 12.32 & 18.32 of the Chula Vista Municipal
Code.)
5.6 All trees shall be a minimum of 15 feet from any fire hydrant, light standard or
utility pole.
5.7 All street trees shall be planted no closer than 7' to any sidewalk, coricrete driye
or other hard surfaces within the right-of-way without the approval of the City
Landscape Architect or Director of Public Works.
5.8 Plants and other landscape features which may pose unusual health or safety
problem are not acceptable.
5.9 A landscape pl#1iijp,\\'#pqji't'ig#yi.\# plan will be required for any landscape
improvement beyond street tree planting. amllawRs ',vith gradieRts of five (5%)
per ctmt or less.
6. PARKING AREAS
6.1 Any parking lot for 5 or more vehicles shall require a landscape strip (10 feet
minimum) between the parking area and the public right of way. This strip shall
effectively screen the parking lot from the public right of way to a minimum
height of 3.1/2 feet. Any approved combination of planting mounds, walls and/or
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decorative features, which are visually compatible with community aesthetic
values, may be utilized.
6.2 A 6 foot wide side yard landscape strip shall be required in commercial and
industrial lots where they abut a residential or institutional zone or land use where
a zoning wall is not required. A 5 foot minimum decorative masonry wall or
chain-link fence or approved equal type fencing with vines in combination with
tree planters may be considered in lieu of a planting strip.
6.3 A minimum of 10 % of the interior of any parking area shall be devoted to
landscaping. The 6 foot landscaped strip and the 10 foot landscaped strip
mentioned above will not be included in the 10 % figure. Pleasing decorative
paving of brick, stone or tile will be considered in lieu of a plant ground cover
although one tree in a minimum sixteen square foot cutout for every 100 square
feet of decorative paving will be required.
6.4 Planters, walls and fences in the parking areas shall have a protective 6 inch curb
to protect against damage to plants and irrigation heads. Plantirig areAswbiCh
abut vehicle stalls will have a minimum concrete paved strip 18" wide (including
curb) to provide for access to and from parked vehicles.
6.5 Protective concrete curbs or standard concrete wheel stops are required where
walls and fences abut driveways and parking stalls.
6.6
Planting areas which abllt '/ehicle stalls will have a minimllm paved strip 1&" wide
to provide for aceess to and frem parked vehicles.
6.6 fr.+
Parking lots will require a landscape submittal, includiHg g~l#n~9#p~; planting
and irrigation plans.
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7. POLE SIGN PLANTERS
Planting areas will be required at the base of all freestanding pole signs. Planter sizes
will be according to the following dimensions:
Planting Area in Minimum Width
Sign Height in Feet Square Feet in Feet.
1-10 20 3
1()..20 40 S
2()"35 100 9
.Inside dimension.
Minimum cover of soil over footings should be 18" in order to provide adequate room
for small shrubs and ground cover root growth.
8. EROSION CONTROL SLOPE PLANTING
All slopes which are created by grading or otherwise denuded of vegetation during
construction shall be planted with one of the two planting tYPes dermed in Section 2.2.
In addition, slopes over 6 feet in vertical height shall be enhanced with one (minimum)
I-gallon container size tree or shrub per 100 square feet or 4 liners per 100 square feet.
These plants should be placed to create a pleasing aesthetic arrangement.
9. MAINTENANCE
9.1 All landscaping required in connection with the construction of multiple family,
commercial, industrial, Planned Unit Development, and unclassified uses shall be
maintained by the owner. A copy of a valid landscape maintenance contract or
an affidavit of the person responsible shall be fIled with the Planning Department.
Contract copies shall be ref1led upon renewal. Affidavits of the responsible person
shall be ref1led upon change of responsibilitY. Overall appearance of the
landscape shall be neat, healthy and free of weeds and debris. Individual plants
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Page 12
shall show vigorous growth typical of their species. If at any time, in the opinion
of the City Landscape Architect, the maintenance level drops below the level
described above, he will notify the owner in writing. The owner shall have sixty
(60) days beyond notice to correct the condition or the CitY shall start litigation
procedures and/or clean and maintain the development and bill the owner(s) for
such services, where landscape easements exist
9.2 All new construction under Section 1.2 above shall conform to the requirements
of Section 9.1 above and, in addition, shall be subject to a one year landscape
installation guarantee (by owner as to material and workmanship). The installation
shall conform to the City approved landscapeip~!!np.pgiffig!!TIg~pi#! plan. All
planting and irrigation equipment shall be guaranteed by owner for one full year
after the installation is accepted by the City Landscape Architect. The rate of
growth and establishment of all planting will be monitored by the City Landscape
Architect. If plants do not grow in a manner typical of their species under the site
conditions, he may require remedial measures such as additional planting or
replanting, weeding, additional fertilizer or other adjustments. The City Landscape
Architect has the option to extend the one year period in order to achieve normal
plant growth and establishment. (See Section 13 for bonding requirements.)
10. DECORATIVE LIGHTING
If decorative lighting is used it must be installed to the manufacturer specifications and
all applicable codes, and the layout must appear as part of the landscape plans for
approval by the City Landscape Architect. Conventional security and functional lighting
is not considered decorative for the purposes of this manual.
11. SPECIAL STANDARDS FOR PLANNED UNIT DEVELOPMENTS
These standards supplement the specific standards above and do not replace them.
Page 13
WPC F:\HOMEflANNlNG'LANDSCAPDRAFI'l
11.1 Level areas (5% grade or less, see PUD Policy) shall be predominantly covered
with a ground cover such as grass, to promote recreational use.
11.2 A minimum of two trees per dwelling are requITed exclusive of street trees and
slope trees. These trees may be installed anywhere as required to effect a good
design.
11.3 At least 15 per cent of the trees shall have a minimum caliper of 3" if standards,
and 2" if multiple trunks, unless otherwise approved by the City Landscape
Architect.
11.4 At least 25 per cent of the trees shall be a minimum of 1.1/2" caliper if standards
and I" if multiple trunks.
11.5 The balance (60 per cent maximum) shall be 5 gallon size unless otherwise
approved by the City Landscape Architect.
11.6 Additional trees shall be required in open space areas; they shall be a minimum
of 5 gallon unless otherwise approved by the Gity Pii\'K~ Landscape Architect. A
variety of trees shall be utilized to effect interest: columnar, wide and medium
spreading, etc. Additional 5 gallon shrubs and trees shall be used throughout the
project in adequate number to accept open areas, buildings and screen parking
areas.
11.7 Additional specimen materials shall be utilized near the entrance to the project and
along dedicated streets. Street trees shall be a minimum of 15 gallon container
size and shall be a minimum of 6 feet tall with a 1.1/2" caliper when planted, and
double staked.
11.8 A preliminary landscape p!~ptmgiW~Wiig~!i(j* plan is required at the time of
filing the tentative subdivision map and a final landscape p}~t!l'ipgiWgWiig~j:i9#
plan is required at the time of submitting a grading plan.
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11.9 Prior to the issuance of any building permits, a model home landscape, planting
and liTigation plan addressing the use of water efficient and drougbt tolerant
landscape practices shall be submitted to and be approved by the City Lands~ape
Architect.
12. SPECIAL STANDARDS FOR MULTI-FAMILY DEVELOPMENTS
The required planting for usable (recreational) open space as defined by the Chula Vista
Zoning Ordinance shall consist of turf grass or an equal ground cover which can be used
for recreation or leisure use. All other open space areas shall meet the design criteria for
water efficient and drought tolerant landscaping as approved by the City Landscape
13. BONDING
Bonds in the amount of 100% of the estimated cost of planting, irrigation and
maintenance are required with the submittal of grading plans for a grading pennit and/or
prior to the recording of any final subdivision map. Prior to submitting an estimate, it
is recommended that the Planning Department be contacted.
14. STANDARD SPECIFICATIONS
14.1 Weed Abatement. The method of weed abatement shall be specified in the
landscape plans and subject to the approval of the City Landscape Architect.
14.2 Plant Material. All plant material specified shall be according to American
Standard for Nursery Stock as adopted by the American Association of
Nurserymen.
14.3 Plant Pits. (See table on Standard Drawing Sheet 1.) Larger plant materials shall
have a pit size that will clear the original root ball by a minimum of 12" on all
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sides and the bottom. All backfill shall be a minimum of one third organic soil
amendment and thoroughly mixed with native soil.
14.4 Stakin~. See standard drawing sheet I
~ 14.4 Ground Covers. All species planted from unrooted cuttings shall be planted on
maximum 9" triangular spacing. Rooted ground covers shall be planted on a
maximum of 12" triangular spacing. Carpobrotus edulis may not be used without
the approval of the City Landscape Architect.
14.5 Hvdroseeding. The specification of the hydro seed mix is the responsibility of the
applicant or his landscape architect. Required information is:
1. Seed species by botanical name.
2. Application rate in pounds/acre of each species.
3. Purity and germination percentage if available.
4. Fertilizer type and application rate per acre. (Soil analysis may be
required.)
5. Soil stabilizing chemical, if used, by brand name and application rate per
acre.
6. Fiber mulch material by brand name and application rate per acre.
14.6 Soil Preparation. All fill slopes, 3:1 or steeper, shall have a minimum of one
cubic yard per 1000 square feet of organic soil amendment incorporated into the
top 3" and compacted prior to planting or seeding. All other planting areas shall
require either new friable top soil, an organic soil amendment, or a graded sand
amendment. The specified installation method shall be subject to approval by the
City Landscape Architect.
14.7 Fertilizers. All planted areas shall be fertilized with a complete commercial
fertilizer (nitrogen, phosphate, potassium). It must also contain iron or a separate
application of iron must be made. Slow release fertilizers shall be applied during
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plant installation and at the end of the one year guarantee period. in addition,
individual plants shall be fertilized with the same type of fertilizer or a 21 gram
balanced tablet at the following rates:
I gallon
5 gallon
15 gallon
I tab
2 tabs
4 tabs
All other types shall be applied at least 3 times at no greater intervals than 3 months.
The fertilizer application rate is subject to the approval of the City Landscape Architect.
15. IRRIGATION
15.1 Material Standards.
15.1.1 Pipes.
Acceptable pipes include the following:
(a) Polyvinyl Chloride Pipe:
(1) Type of material: PVC type I and/or type II, manufactured
in accordance with commercial standards, CS.256 or
CS-207.
(2) Identification: All pipe and fittings have markings which
indicate the manufacturer's name, production control
number, class or schedule number, type and grade of
material, pipe size.
(b) GalYanized Iron Pipe:
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Type ef material: Het dipped galvanized steel conforming te the
specifications ef .^.STM Designation .^. 120, Standard weight
(Schedule 10)
(c) :\sbestes Cement Pipe: (1" minimum size)
(1) Type ef material: Pipe shall cenfenn to requirements ef
the latest re'lisien ef .^..\!/.'N..^.. Standard Specifkatien C
100 as te material, workmanship, strength, metheds ef
sampling, markings, inspections and test.
(2) Unless other wise specified, all pipe shall be class 150.
(3) Cast iron fittings fer asbestes cement pipe shall conform to
tHe reC\uirements ef A.W.W.A. Standar-d Specifications fer
SHeft Bedy, Class 250. :\11 cast iron fittings and valves
sHall be cement lined and seal ceated.
(1) Identification: ,\11 pipe and fittings sHall Have markings
wHich indicate tHe pipe size and class and!{)r werking
pressure.
(d) :\luminum Pipe:
Type ef material: Pipe shall be of a commercially manufactured
type with steel couplings, val'les and fittings.
(b) {ej
Cepper Pipe:
Type ef material: Pipe shall be a minimum Type "L".
(9) W
Pipe Schedule:
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Pennanent Svstems ,A.boy@ Grelmd Underground Pressure Pipe
Pressure Pipe Cep]3er Type "L" PVC.Class 315
PVC.Schedule 40
Copper-Type "L"
Ashl!stos Class 150
Fittings Cop]3@r Type "L" PVC-Schedule 40
Copper.Type "L"
Cast iron short body
Class 250
Lateral Pipe Gak Sched. 40 PVC.Class 315
Copper Type "L" PVC.Schedule 40
Copper. Type "L"
Asbestos Class ISO
Galy. Sehed. 40
Fittings Galy. Sched. 40 PVC Sched. 40
Copper Type "L" Copper. Type "L"
Cast IroR Short
BOOy
Class 200
Galy. Sehed. 40
Teml'lOrarl Systems ,A.hoye GrouRd URder~rouRd
Pressure Pipe Gak Sehed. 40 Same as Perm. Sys.
Copper Type "L" phIs Gah'. Sehed. 40
PYC Class 315
PYC Class 200
Alum. Class 150
Fittings Same as pl!nnanent Same as pennanent
systems plus system
PYC Sched. 40
:\llIm. ClaGs 150
Lateral Pipe Same as pennaReRt Same as pennanent
systems pills system
PYC Class 315
PVC Class 200
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Fittings
Same as pennanent
system plus
PVC Sched. 10
Same as permaneRt
system
TEMPORARY SYSTEMS. TO BE INSTALLED UNDERGROUND. SAME AS
PERMANENT SYSTEMS,
15.1.2 Sprinkler Heads. Sprinkler heads shall be a commercially manufactured
type acceptable to the City Landscape Architect (PWI<*~!\4~q~p~~mt~9~
Plastic heads are not acceptable, eJwept for
temporary systems or on approval by the City Landseape .\r.ehiteet.
15.1.3 Automatic Control Valves (Electric & Hydraulic). All automatic control
valves (electric) shall be globe or angle pattern, electrically controlled,
hydraulically operated, normally closed type. Valves shall automatically
close in event of electrical power failure. All control wire shall be of the
Underwriter's Laboratory type UF (underground feeder), single conductor,
solid copper, plastic insulated, 600 volt rated for direct burial application.
All automatic control valves (hydraulic) shall be normally closed type.
Control tubing shall be of a commercially manufactured type acceptable
to the City Landscape Architect. Electrically controlled irrigation systems
shall comply with the requirements of the +9+l-W9Q National Electrical
Code, Article 725.
15.2 Irrigation Design Criteria. The following criteria are to be complied with in the
design of slope irrigation systems:
15.2.1 Precipitation Rate. Application of water for sprinkler heads shall be from
1/8 inch (0.125") per hour to 1/4 inch (0.250") per hour unless otherwise
approved by the City Landscape Architect. Calculation of precipitation
rate:
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Precipitation Rate (Inches/Hour) = 96.3 x G.P.M.
SxL
96.3 = constant
G.P.M. = Gallons per minute for sprinkler head selected.
S = Spacing between sprinkler heads (feet)
L = Spacing between rows (feet)
15.2.2 Velocity of Flow. The system shall be designed to operate at a water
velocity not to exceed five (5) feet per second.
Velocity =
G.P.M.
2.45 x Dia 2
G.P.M. = Gallons pef minute flow through pipe
2.45 = constant
Dia 2 = inside diameter (inches) of pipe squared.
15.2.3 Spacing Requirements. Maximum spacing fequirement fOf sprinklef heads
are the following:
(a) Rotary, impact and rotary stream spfay type: 50% of sprinkler
head coverage diameter.
(b) Stream spray type: 50% of sprinkler head coverage diameter.
(c) Shrub or lawn spray type: 60% of sprinkler head coverage
diameter.
(d) Use pop-up heads along all walks and passage ways.
15.2.4 Backflow Protection. Backflow protection must be provided for all
irrigation systems. Approved backflow devices and their installation
requirements are as follows:
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(a) Atmospheric Vacuum Breaker. Installed a minimum of six inches
(6 ") above the surrounding ground and above all of the heads so at
no time will the vacuum breaker be subjected to back pressure or
drainage. No valve of any type to be installed on the discharge
side of the vacuum breaker, nor shall it be used under continuous
pressure. Atmospheric vacuum breakers may be an integral part of
the irrigation control valve.
(b) Pressure Vacuum Breakers. Installed a minimum of twelve inches
(12") above the surrounding ground and above a majority of heads
so at no time will the vacuum breaker be subjected to back
pressure or drainage. Irrigation control valves may be installed
downstream from the vacuum breaker. Note: All vacutnn.
breaker/back-now devices must be certified by the . water
purveyor prior to acceptance by the City Landscape Architect
and/or the Park Landscape Architect
(c) Reduced Pressure Backflow Protection. Installed at a location
where the relief valve is not subject to flooding. It may be
installed under continuous pressure service and may be subjected
to back pressure. Locate out of lawn areas.
15.2.5 Line Drainage Erosion Control. Line drainage erosion control shall be
indicated on the plan or in the specifications wherever applicable.
Acceptable methods of erosion control are the following:
(a) Anti.drain valves, installed in risers or in line as necessary.
(b) Double layered jute matting or an acceptable substitute.
(c) Lined ditch downdrain (2" "gunite" mortar).
(d) Lined ditch downdrain (2" concrete or air blow mortar)
15.2.6 Miscellaneous Design Criteria.
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(a) Gate valves are to be used as emergency shut-off valves and not as
manual control valves for sprinkler systems.
(b) Sprinkler circuits shall run parallel or as close to parallel to the
contour lines as is practical.
(c) Sprinkler heads within a circuit shall have a uniform precipitation
rate. To achieve this, the following practices are recommended:
(I) Sprinkler head types (i.e., impact, stream spray and shrub
spray) should not be mixed within a circuit.
(2) Independent circuits should be used when watering from the
top of slope downhill and the toe of slope uphill on slope
6 feet and greater in height.
(3) Operating pressure differential on anyone circuit should not
exceed the limits of the sprinkler head used.
(d) Every lot shall have an independent irrigation system unless
otherwise specified by the City Landscape Architect.
( e) Watering across property lines shall not be allowed unless
permission has been granted by the City Landscape Architect.
(t) Swing joints shall be installed on lines at all abrupt changes of
grade.
(g) Pressure regulators, pressure relief valves, thrust blocks and other
irrigation appurtenances shall be required at the discretion of the
City Landscape Architect.
WPC F:\HOMm'LANNIN<NANDSCANJRAFfl
Page 23
15.3 Installation Procedures.
15.3.1 Pipe Installation. The following are minimum criteria to be complied with
for pipe installation.
(a) Trench Width and Depth Schedule:
PVC
COPPER
G".LV. IRON
A.C.P.
(Pressure)
Trench Depth
(Non-Pressure)
Trench Depth 12" 18" ~
Width Dia. + 4" Dia. + 12" Dia. I 4"
*May be shallower if supplemental protection is provided.
18"*
24"
w
w
w
Dia. I 12"
(b) Staking and Risers.
(l) All pipe used above ground shall be staked every fifteen
feet, or less. with stakes made from metallie er non
degradable materials. Minimum length of stake: Thirty
inches (30") on fill slopes, 24 "on eut slopes.
(2) ".11 faGteners shall be "Puneh Loe", PI limbers Tape, worm
sere\\' type, galvanized wire or equivalent.
15.3.2 Flushing and Testing. After all new irrigation piping and risers are in
place and connected and prior to the installation of irrigation heads and/or
quick coupling valves, the systems shall be flushed and made ready for
testing. To insure proper functioning of the system, all pressure irrigation
piping shall be hydrostatically tested.
15.3.3 Installation of Direct Burial Control Wires. All direct burial control wire
shall be installed in a trench and to the side or below any pipes in the
WPC F:\HOME\PLANNING\LANDSCAP\DRAFTl
Page 24
same trench. Minimum trench depth when installed without pipes is 18"
unless supplemental protection is provided. (Section 339.3C NEC)
Whenever direct burial control wires are to be installed under new or
existing improvements such as curbs, sidewalks, and/or pavements, they
shall be installed in a polyvinyl chloride conduit of the size noted on the
plans, which shall extend one foot beyond each side of the improvement.
The letter "E" shall be stamped or chiseled on the improvement directly
above the conduit. All wire splicing shall take place in the valve boxes
and/or pull boxes. All splices shall be made with a mechanical connector
encased in a self.curing epoxy resin or equal, which provides a permanent
watertight connection.
15.3.4 Installation of Control Tubing. All control tubing shall be installed in a
trench to the side or below any pipes in the same trench.
WPC F:\HOMBPLANNING'LANDSCAP>DRAFTl
Page 25
~
1
111
2
2a
3
4
S
(j
7
S
Sa
9
10
lOa
11
ST A~ID.^.RD DRAWINGS
Street Tree Planting aaet g....1r:1=lg
Tlee PlaMiRg aRS g.nt":Rg
Shfa9 PiRAting
Shfa9 Planting in liard PRA CenElitiens
Typieal OI'eraY Epri:1kJ.er lRsQlllatien
or '.' ^ H T> T>'" H .. r"- H.' T. _.'1 .
1 j1JlS__ . .. . .5., 1\..'-. . ., an.... _ate. _ VB .J1S_ af:19B
Typieal LV.B., P.'.B. ManifelEl Installatien
Typieal PfeSSIIfe Baekt'lew Pfe\'enter }\ssemBly
Pfessare ReYef Y &IV! InstallatiaR
Typieal Impaet lIead
Typieal Impaet lIeaEl .^.ssembly IIsing gel( risers
Typieal ~je~e line installatien
Typi6~al Pep up La\"/R HeaEl and Pep up La"."/R Heaa ,vim gy.i.Rg Jain! AS5emelJ
Typieal Pep III' (Reter er Impaet) Lawn ].IeaEI Swing Jeint .^.ssemllly IIsing gel( BSers
PlaRter CeRGrete CurB
Wl'CfmoMIN'IANNIN~
Page 26
l(i; WATBltCONSEltVA'tlONFoItUANDSG.APINO
rURP()SEA!lJD....~
m!'i$PWPg~p~P!~~I~1!i9'g!j~~!9~~~~~~p!\Sifig!mnqM:g~~gl]!mq~8~~PI!:SU~q
~g~tWl~H9!!~9!W!9~8it~IDM~Y!MI~ljt~I}Yi.@f['I~9m~!~p*1!9..!!!!i:\m!9ijiR~
fi!i~f!,iimxil!~~f9![J!!..If~~iA~P~9fID~~yy9f~J!!~iY'~m;:;Jt!~P!qmt\iAt.P!~tPlQPP~q
~~~~ii~91[~~1S9~~~lY~P9~i~~I!~!?i!i!IY~~Y\:!iQi~pm9~P!q~Higgf
imi!n9~H9n~!9l1;iw,1@!1;gp~umt~MP~g~myJ~.i.lm;:1!i!!~~~y~Jgi!fiI#i\!plgj~
Im~m1I!1ym~I>>ym~ply~M~p~;m~'~g~!m~fm;\mPl~~!1
Pf9YiR9q~f
~(i;1 LANDSCAPINGltEGULATIONS.
~6.1,1 '~lrl..~ ..~J:'~()SE;:pie J6~9~ngPl~i~f\$9fP!~~9Siillp~
M<iriua! sha1rbcjk/)6~pas ili~ ~~tetconsetvatioji:tc:g\jta!ij)ti$;:~ P?i'Po~~
of .these:provi.siori$i~Ji)pr~be~~f6f~4SCIi~.~Ntectql
~thil1'.qieqty ... Qf'Gh)l1aY}~tafor ...ilit:~9riseiY*tii)jifjfyl!Jt1!!\:iI~i,V!lter
~esol!ri;6~i1ndpi6~tiQri. Qfpr9per.ty.~e 'li~si,it'ajipe9~MetYli#q~!\S.@tY;
~~'.~nhancerneri( l)fprlv~y,#qontr()tpf~u~~;Ji114lli~!!fuitPY~t:9f
ilieyi~tia1.e~Yit!>~$l1tincNdJJ\s. .'IMprQViSi6A(if~rie~t~:Pp~atjinii~ip
IceepiJ}s.\viiliiiijighb!!T/16oi;! ~ttW~~
~(;);I . ~TANDAtmSAPPt..1CABUETO...ltEQUtREh.UANDSCAPtNO)
I~;g;l ~}!!P9Sii!pi#BrmWl~PYf!\m!nii!!~9P~~~!!Yml!if!\~ii(9)>9~j
~~,~~!Jrm!MtBP~
I~;~;~ ~~gl~{9Fli~~~Immg[!~m;mgtHg~.i\B~p!WitIDgm~m9Ym!;i,~MPt
ftl~tg~!qrl!m$9t~~!!~:,?Pn~~i~9nm1!tBm!~m;!9.!!i:~9\ff!~i~
~mPl;i~;!I~~;'n9~m;Prmtrn~qjlym_lY!m'm~Rt!!lt\IRM~
~9it~i~tigm1p~Yy~~p~i~f~\V.9f~Hglj~.niR~.0011Pt!m!~I~.;m
!m\ljH9W.'Wb.~9j!.PpffiWJ~~I9TID~~i~!!Rpip!!ID~H~;m~mm~~plj
ID!!YmiilijA~A~m.tI{I;j!1!if~~~ijgb.~!9!J!!;!!R4~t9A~Jt9Pi91!!fi!!;~ij!;!j
Page 27
Wl'C F:IIIOMlN'LANNlNau.NDSCANJRAFI'
tropical plant materials, and structural features including but not limited to
. ......"" """,.".".".".........
fountains, reflecting pools, art work, screens, walls and fences.
16.2.3 Timing and Maintenance. All required plantings shall Qe in place prior to
use or occupancy of all buildings or structures. All required. plantings
shall be maintained in good growing. condition, and whenever necessary,
shall be replaced with similar plant materials to ensure continued
compliance with applicable landscaping, buffering; IU)dscreening
requirements. All landscape planting and irrigation systems shall be
properly maintained and in good working order.
16.3 WATER CONSERVATION REOUIREMENTS - APPLICABILITY
All building permit appJications for industrial, commercial, civic, or multi~family
residential buildings or structures; single family or multi.family. residcotial
developments with common areas; and all discretionary permit applications for the
aforementioned types of land uses regulated in any manner by the provisioris of
TITLE 19 of the Municipal Code Zoning Ordinance shall be subject to review in
accordance with the provisions of this Landscape Manual. Interior remodels or
minor modifications to the exterior of a structure constituting a valuation of less
than $20,000 are not subject to this requirements.
16.4 CONFLICT WITH CALIFORNIA PUBLIC RESOURCES CODE
It is recognized that the California Public Resources Code establisheS certain
.....""",,,-,,,,,,,., ,-,,,,, ,,,- , - , - - -,,, '"'' ,,,-,," """,..",..""""".....
minimum requirements for brush clearance and also grants local governing
agencies authority to promulgate and enforce additional fire code requirements as
necessitated by local conditions. Consequently, when any conflict arises between
these water conservation regulations and local fire agency regulations, those of the
local fire agency shall prevail.
WPC F:\HOME'J>LANNINffiLANDSCAN>RAFfI
Page 28
~1i M'ATERMANAGEMENTPUAN
Xli~ ~~~~ag~~p,'E!~
li~~m~p~~.!P~M!~m\U~~y~~m.:!miE~i\ii;pm!~~g:.!ljMl
iAqm~i~~m~~$~!~!!I~~~~ipm~!!G.a.m~g'~lU1U9!!;\~:[f9:Pm!~
~~!J~~!!!m~mn~PI.!!!!g~h~~PR\1.!flM~~.~tqp~mgm~BI;:l~~'
pf~j~M9!1m9P~i;w;~!lB.~m~pljl\Yj;fl:~m.~'~Y@.:~$~
9fl\Y~!~g9!!S\ty~H9\1~~mq~i!fjql\Y~~~t~lQimg~!~gip~.t~'mmq,~m
~t~~P9~iti!~(9tmElli:ip'~~t!R#~tm~:~rg~gmv~!!jp1M!i
~~;~ R~!iU!rt~rw:~
~~!'!'~m~\Y~Y;fi~!)1!n~R1~~!!u!'!mF'.R~!1F9\i~imF'm9~I
~tY;9rwb!m~r~!~g9nmAAY;rpljillmW8!ptlgm~I)1~j!!m!I!'!Yi9f
~!~~w~~rmlli~p,i~Im~En~p.pt~4pym~~p1!ei!\1,~~mRt
iWF9g9Y!1n!~lli~~m!9fYP~.m~Pf~PA~q.PmJ1!eql~~PP!w!!!!~;~ff~!
w~rPpm,~m~9I9f~mm~)Y~g;.tw~9;~P.t9j~.~~SP~Ma14'.m~
yjgID!j;y9fjWy!9!;~H9n\Yn~~~qgg~~~m!~;9r9.9P~~
17.3 ~~..Y{a;!~~poi]1ge
mm~#Y~\1~pf~!;!~_:ijj.~ri~~n#~.~imM!!!~#jiYm9riy~!~"giw'~r
2Rij~~tyiY9nm~im~P!Pjm~!!m~mP!Yi!m.mw~ti~!at!9PPm_!
!!Q9P~~Ry:~g'!IDg:!9Blig9_m~!!\!'mpnY~!;im:~~~nt"9I!IDY;mtlm~
~~!3\P;~!!RtiPr9~!IDi;ti!!~~9igw#!;\9!mm~~m~rp9#9J,RP~~~mm!ip.P'Yf
l1Zi4 ~fi9~R~n9~~~~9g:~prm.~R.
~9tf9~!$~!!!H\~~f!!~tprw!~.p.f~!!'pjffi9Yi.i9tifi9H~~ipf~9mptl!!mi
w!n9!!'~!i'li~!PPU\mRl~im~.~.tmU9ID~~~!\U.Pt9M!~~~~mfi8ffi9q~Y~'Dli!-
lj~n~t&!l!ID~i!P!!i~pU~im~~eYM'mgmmi.~.jipriIm~'B
WI'C F~MJN>U.NNIN<N.ANDSCAPIDRAFl'\
Page 29
OOilti'ac;fo*thatthe landsi:~pe ;impi1:\v6:\1tiits. havepeerii]'i:s#lltiqiriacc<ii4iuicewith
theapplovea.landscil~plfut ..The.~it#ieriWaJ.Ipioyj4~~1ii~nce~r#1~1)@ifui)i
$6.~ls analYJ;jsandt~~t th~ ~orrtm~n4~ti6ns~~..~~.rtiJlt4con~derationiil th~
ii:Jrieridirient;teriitizatidn.. arid drainage. spricificandri!;;Ariychilngestlliii:occtir in
dlefield due to site ~riditiorisoiplantmi\terw ilyiiila1)iJitYlJi~t bc(S\ibl;iiittedfo
~e. CitY LandscapeJ\rl;1liteCt
SEE EXRmIT" A"
(SAMPLEPL~
PAGE 36
18; FffiERETARDANTIDROUGRT TOLERANT PLANTS (*SouthGOii$tii1Zon~.
includin .Chrila Vista)
.. ....g .
BOTANJC NAME
COMMON NA~fE
TREES
qeratoniJi siliqua
tJucalyptus spp;
RhiJ$laricdt
$chinli$ .moUe
lJiribeJIii1arlii. califQriii~
,\\,a$l:1irigfurii~spp;
carob
Eucalyptus. speCies
African suir\dc.i
9ilifotnii1p~p~t
pa1ifo~ijiI:.ill#~
FititPalms
SHRUBS
ArlemiSiileaucllSiji
AtrlpleKcli.tleaw,
AtrlPI.ex<nrifMH
Atrlplex.semi!)aceata
Caucasian .A1i~riiisja
Saltbuj;b.9G!iniefVillleySa1tQilW
~eping Aus@liiln
Page 30
WPC F:\HOME'lPlANND'IlG'LANDSCANJRAFTI
fi'1!\I/i,~~mp'!!9fQt19~
Ni~m$i'i~Pp$~~
fi'19@A~~q~gFP~~
fJ~~m~*~i#tR~m9lj~
~~Q9IDipt~~9~!
D~JYPPi
gpim!##~j!Jg~rn'Q$
R1!BY~m~~9ljfi!
RQ~~'9~p!H8!m!iJi~
~pi'P~iW~t
~#~R~9gP9~~Pntm
RP;;P'P~
HpfgpijH\n$~pl~~~
x9Y9A
~t~9~
KijI~I!pji;'!;APnY
Jtj\ti~ij;a#~~m~
_9A~~;~~
~mgg9~mi#tY
HBR.BACE()US....PEANTS1tm!9~~x~!!M9g~!I1Jq~t~!iJ$)
t\9w,q~t9m~9~9~#
t\g~y~!ffi'!~p\iiffi#
m9~~PR;
~~~plP#~~!iJ~u4w~
~~BMmj9m~ln9~\jffi
~w~!ppi
m19~~!il1j
~gW!m9t!
p!liJiPt!liJm9~~lIt!i
R~Btm~v~~
~gJm!s~ypml
~=m~m99.
~.pl~Pmmmm9~$
m~gm~;~~!!~!
I~~n!m~y!g
ImRi!]~PB!
~~.~slp;
Y'mr9W
~!nlitYf!liffij
~~
~.....~
$!!pw1mt$#ffimpj;
t\!!fN
g~P'J!i!mg!\i!m~~!
OCfi\.iHhg~~
~'Q$fIl~~!I1J~
$Rrn!.g~!illt9~r9!!
P"y~04~r~p~~
i:m'!l~~xl'Y
g9~t9;l'm~
l!Pi!iH9A~Y~i~
R~yi!l1J;Y~~.
RmWiril\1~
...;.,.....'w:...,.........'..........--........
Wi~g
Wl'C FmoMIN'UNNING'U.NDSCIJ'IDIl
Page 31
19.
GLO~~c&v-'t ~ ~-W~
Atmospheric Vacuum Breaker (A.V.B.) - A device that prevents the reverse flow of water. The
device is normally downstream of the control valve and above the highest head of the circuit
served. d~ cl~~:h cM,~ , b0-~ ~
~t~{., f4 cl~~n~ ~
Circuit - Commonly used to describe all of tile heads controlled by a common control valve.
~ tA ~ C~e..> .
i6ffiJfi6'i1!Afea;;!i!'A~1~:W!M9!:1:!mP,~mmpg~!iY.~t!R~Yffi~~iP!!fifI!iiP-
.j~;~9t9m~ft9tm9~~9P~rn#~qrg~1r:~t(9mr9f;~~~9f'<<!IS:~~9A~
rE9mmm!i~~';~~q~!WFlH~~9P~.Q~p~q;:W!M!;p.~n#Pt~~giAlyfiW~~j
Controller - Most common term used to describe an automatic device which signals remote
control valves to open or close. Controllers are sometimes called "clocks."
Control Valve - Commonly used to describe the valve that operates a single circuit of sprinkler
heads.
tt1!6nvei'SionF.a~f(OJ(;2j1'm~~~iA!!m!:!!ittP.~~E9nym~m~m~mMm\l'.Wtmp\Y4~:n:9'IP
_j!;\~&'*~~LY~~9g!!P9ni!l~qm~~99YY~;
!flj~~9mmj9#f~(9ri'F!UF9!i1i~~f9U9~;
i~~;~~~gm9A&'~A;$~QS1!!~[~~)l!~m9P..~,Fi(Qi~~)
ib~~?~i~6~m9n~iF9#~m~991
~~~.9Q~i~(;ffl9A~'lm
~m!1lj;~'5g!;\~fq!!!
mbiiiffifirr6teranfPlaiiffIY9!#ig.<<e!;~ti;prpgg~ywi!uFihto6tfier'~oilfot;~'f6
miffiflfYi~~(!\Mlli~im!j~i~g~~!!tSm919ng~m;g9!!!9~i~..:w~!!msriI';;:'
~c9tafiVi!TUft'im'I~~~~~~'9r;l!!iIly~mflm~I~~xmgp9m;;gml:,mjU
i~~m~~i
WI'C F:\HOMlN'LANNlNGV.NDSCANJRAFI1
Page 32
rEt{ectivgR.iiinfaU!!t:MmS~~~9~t!'9~~ilm~~19B~m4P;i~~1E~f9~~~~~gt~~
pIM!~!;pgrpWPP~~~pf:~~e!1~!mg;~~~1m9!U~~~r:~!p~iro9~;jID.4~~~~!mg~~t~;ii,~~
~ff%iBY~tiPAf%JM!P9!f!;!~mq19~~Al~9!pf;~!!I!mg~MA~q~~w!ijk~~pHJ9~~J9~~
tpn;n~..mj~~swt!
Grass:'CoolSi!as6nt~mi~SQ~~8t~~~Pii~~~~Ptf4!9gr9~'~9!mg~991i.~!~~99A~
!.ifm~Ymifi~ywgf~~m!~'9P~!m!m~Q~1~tp.fd9~1~~p~~~igi~:~!m~~i
~~!I~f~ii,~~i'a1'Y~mli
orasSiWarmSeasont;$~~,g~!:I!!'f~~~~i4iptf4f9~m~!iWlgm~~~Pm.91\~~
y~g~1j~l1Y99~!g;9!mg~!qw~im~fj~Pm19mylj!Ymgl!'Pfi!~9p!;1.mYm~91..~'l19R~
~~~p#8fi!9~is;gi;_99.~I~~;$!;~9gq~!m~m~~i.!i99~Y~!~I~~;
GiOUridcover .'~..'.L9",pllU1w;ejtbeibqbace9I1SorW9OdY.AAdiri\Jlc~fI~~iit*,ver1:bei'9Wid;
HBidscaDe ..~.~B#~e4 .pavirig.lria~ri3! .(te:;t.lle....pr.>;.n9i:t#ed.pa"eij!W.99d~~;:~19re1!
palf*lrieif~Ortci:ete providing..~tile;!?riCk:Qr..stOI\~ap~#8rid:).or#i\m~~~BW\9~P9ij9l
pauernedpa:vjrtg1Uaterial..Witht:nh~iiced.~licrete$gch' as.exposeg~g~g#te.~lp~Pf~~t
flili$b.
Hydroseeding - Commonly used to describe the method of applying seeds, mulch, fertilizer and
soil stabilizers to slopes or to other areas which have no natural plant cover.
rpTi~Boiieffi8iericyrfflF~!!~~m~~~!p.f~.i#nR~ij.~9~.W!!$r.~!!Il~!~XY;~~!lm~~
!?Yi.a~9~9f-!~$t~ppn~i.:!'mi4B9P.~fH8!ID9~i~Am:YI1:f[em\:m~~~';M~
1~~qr!mg~y~;~YfiPA~9mAiU9~!!P9mmg~!mtp~9~.~;:~~Hm!mg~y~
IflRi~9Y!9tpWP9~~!;\f~99n~~!fm9n,~m?n:i!(i~~;I\~~!~:IflR~_B:,!!!;:i~~~im
ft9mP!Q(~~Jpp,!mY4~~igpim!m4mm!w,mim~~m~i
Irrigation Lines - Most commonly used to describe any pipes used exclusively for sprinkler
systems as opposed to other domestic uses. Sometimes refers to only those lines downstream
of the control valve in a sprinkler system.
WI'C P.IIIOMIN'lANNIN~
Page 33
Landscape Architect - One who arranges land and objects upon it for human use and enjoyment
and is licensed by the State to practice landscape architecture. Specific services are consultation,
investigation, reconnaissance, research, design, preparation of drawings and specifications, and
responsible supervision during construction.
Landscape Contractor - Licensed (C27) by the State to install plants, irrigation equipment and
other landscape features as specified by the owner or a State licensed landscape architect
Landscape contractors are not licensed by the State to prepare landscape plans for sale.
Lateral Line - Most common term for irrigation lines downstream of the control valve.
Sometimes called "irrigation lines."
Manual Control Valve eM.C.V.) - Term used to describe the control valve.
Mulch 4 Aiiy@i~~iiaJstK:b'jiS~ddedwood orJwJitt4left ]o*.i!#(!app'1.\<#:1.wt!\csQiJ
Sllffa~.to 'ied!l<;t:c~v~P()nitio~;
~~fiv~6fl'1afufaliZi#gPlitiieS~ecie~t~Y9PP$Y~i~pirgr~s:pl1!9Y~~P9~.m~.9ms:
!PUf9f;~WP'i~9~1Wi~Y:Mmt~!wyg~pp~:t9m~mjffi~9tP~~I~#~,MP,~,~m~~$!p!!
m!j#yl;@i!~~;w:ljis!1,pp~~~1?mh~~s~p~P!~9!~jj~~mggr9wm1!!!g,fS1!P4P9Hgn,M~~t
19!;N!11!m!!BS99PWHP~~i'Wim99!IDIppl~in~fi~}'Y~#in!!gi
Pressure Line - Most common term for lines upstream of the control valve. Sometimes called
"supply lines."
Pressure Vacuum Breaker (p.V.B.) - A device that preyents the reverse flow of water. The
device is located on the pressure side of the control valve(s). Unless otherwise specified by the
manufacturer, this device is located above the highest head of the circuit served.
~R~ctedWatef';I~RectaiifiedAV*ter'tt:~!ID~~*~P!'9~}~~~:}'Y~#it~{.;*q\limt.Y:
im~~;!9fii9j:j7R9m1?!~m~~Y9hI1!!l!m*p~mig~H99jn9~i~99mf9ffi~~p~\lmP;ig,fi!
Page 34
WI'C F~~G'U.NDSCAPIDRAI
Remote Control Valve (R.C.V.) - Term used to describe the control valve but defines automatic
operation by connection either hydraulically or electrically to a controller or clock.
~hftibHA:WQo9YPCi'~ni1ilp1ijtt;,,~!i;illy o*getieiiinY.\Vimirt!il~pl~!.1aS~ >,~i;
Supply Lines - A common term for any line that is always under pressure whether carrying or
just holding water.
Treet;~~twI1!!i~YP~!!Pl>>1mp#~if?fm9~~Yq~fjij~.~"pr!P!PE~>>ipiFRi~
m!nmlY~~~Mg~!y~!ftitpl~~~~~Y~lIDq.iilj~~l~~~!~f~~~~;~e
TilfftMPm~iY~t9~~gPQY!i~PY8!AA~!!A4P~!m~r9Qt~!!j!Q@~K!m!~
Water Anowance, MiOOriilirri .~. F~i.~esigi1 pUrp9ses~..m~tipPerlJiriit9(IIfiit!Jal ~Wt.~f9t)b~
~t;i1:m~l:1cli~Q$c;ipe4..~.basedQi1.tbeiitCa'$ JefeienCci.'aTP..(~yapo\fJiJi$P9r~ti,9h)~t1ieJIT
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EXHIBIT "A"
SAMPLE WATER MANAGEMENT PLAN
A. IN'ffiODUCTION:
B. GOAL:
The purpose of this landscape water management plan is to provide the Owner and/or the
Irrigation Manager with the means to operate and manage the landScape irrigation System
on a continuing basis. This dOl;urnent provides infoffi:UJ.tion and instructions necesj;ary to
achieve this goal, including the following:
'"
Goal of the water management plan
Description of the existing site and climatic conditions
Annual precipitation rates (annual rainfall)
Anticipated ET (evapotranspiration) - (the measurement in inches of soil moisn'lre
consumed by the plant and evaporated from the soil not to exceed 80% of aimual)
The proposed water source and quality
The annual anticipated landScape irrigation water requirements arid soil percolation
rates
A description of the water de]jvery system and the precipitation rates (actUal water
applied in inches per hour) of each type of sprinkler head nozzle.
A final soils report, which shows the percentage organic matter within the soil
texn'lre. Also, a measurement of pH and total soluble salts.
...-,,- ..,,-." """""""""""" ,-"-",,.......... ......
'"
'"
'"
'"
'"
..
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The goal of this water management plan is to conserve water by combining water
conserving design practices with guidelines for the landscape irrigation manager. . This
plan provides him or her with the necessary information to maintain systems in peak
performance, and make decisions on when and how much to irrigate.
This landScape water management plan provides information for the irrigation manager
to implement the following water conservation concepts:
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Irrigation systems should be maintained to distribute Water as uniformIyas
possible.
To assure adeQuate irrigation of all areas the sY$tem should be operated only long
enough to apply water to a soil depth that the plants' roots utilize. Verify with
soil probe.
The irrigation system is designed for maintenititceand operatiort.to.avoidsurface
runoff.
SOIL AND CLIMATIC CONDITIONS:
Soil Conditions are widely variable for the project area; The soil ranges from siltY
sand and decomposed granite to rocky granitic concentrations.
Climatic Conditions " The site, though located in a Southern California thermal
belt, is influenced by south coastal cloud, fog and wind conditions; and sometimes
experiences Santa Ana winds from the desert.
D. ANNUAL PRECIPITATION RATES. (rainfall in inches per vear):
The annual "historical" preCipitation rate (average frorn 1940 to 1970) is 9.45 inches per
year. Currently San Diego CountY is in a drought mode and the historical preCipitation
rate may not apply. For this reason the annual precipitation rate for 1990 is possibly
Anticipated ET evapotranspiration - the measurement in inches, of soil moisture
Authority. Model Water Efficient Landscape Ordinance and City of Chula Vista
Landscape Manual limits the ETO to 80% of the measured ETO for calculations
in each locale)
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Again. due to current drought conditions both ETo(historical ETo) and ET for
1990 are shown below;
ETO (historical reference)
ET~1990
January
P~bruary
March
A ril
P
May
June
July
August
September
October
November
December
2.2
2.65
3.42
3.78
4.88
4.88
5.13
4.88
4.49
3.42
2.36
1.95
3.67
2,65
2.44
2.95
3.94
(i::32'
7.20
7.96
6.78
5:87
4.65
3.5:3
2.80
4.75
Annual Averages:
Por continually updated ETO and precipitation figures for this area, contact the
Department of Water Resources, Office of Water Conservation, P. O. Box 942836,
Sacramento. California 94236.0001. Upon your request. they will furnish you
with C.I.MJ.S. (California Irrigation Management Infoimation Systems). daily
Water Source and Qualitv:
The irrigation water source will be tapped from an existing and fnnctioning ()i1~site
potable pumped ground water system. This system is operated and maintafued by
fire station personneL
PRECIPITATION RATES ~ PLAN 11,;0 AREAS:
The precipitation rates for each variety of planted. irrigated area are as follows (they are
listed by plant type and the sprinkler nozzle servicing them operating at 40 psi):
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Trees. Shrubs and Ground Cover:
Series, Low Gallonage, Matched Precipitation Rates, Pressure Compensating Nozzles;
xx' Coverage Radius (full)
xx' Coverage Radius (half)
xx' Coverage Radius (quarter)
x.xx PR
x.xx PR
.xxPR
Summary of Water Conservation Methods
The irrigation design and water management program described utilizes . known and
....,,- ,-,,-,,-, ,- ,- , - ,- -, ,- - -, - - - - - - - - - - - - - - - - - - - - - - - - - ,- ,- ,-"-,, ,."."-""",.".".,, ".".
documented water conservation principles.
Tbe irrigation equipment and layout in the design reflect the water conservation methods
that have been a standard in the industry, including: an automatic controller with multiple
daily run times, the use of moisture sensors and a rain gauge to interrupt the automatic
programming of the controller when necessary. "head to head" sprinkler layout to increase
DU (distribution uniformity),rtlatched precipitation rate nozzles to. increase DU, low
precipitation rate nozzles to decrease the probability of surface runoff; separate irrigation
stiitioris :tccording to: sun exposures; slopes (top and bottom); turf and shrUb areas.
The planting plan utilizes hardy native and drought tolerant plant species. adjunct to
existing native areas. Ground cover-type plant masses act as living mulches to shade and
cool soil temperatures and reduce moisture loss. Turf areaS are not designed into this
project.
P. WATER REQUIREMENTS:
The annual anticipated water demand has been estimated in inches. gallons, and acre feet
Please note that the figures below were arrived at by utilizing 1990 C.1.M.I.S. data,and
the water demand in non.drought years may be lowered by twenty percent. The City of
Chula Vista is adopting the State Department of Water and Power is mitridatinged an ETQ
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@ 80% of the yearly average ETo. The values shown below will reflect this mandate as
water consumers in the Chula Vista area.
Inches
Gallons
Acre Feet
sq. ft. of Trees,
Shrubs & GiouiJdCover Require:
W!iterDeIiverv Svstems:
The . type of irrigation system utilized for this project . consists of an automatically
controlled, PVC, pop-up spray system. Manv water conserving principles have been
applied in the design. such as:
An automatic irrigation controller that has the capability of being set for multiple
run times in one day for each station, thus reducing run-off by only applying the
amount of water that the soil can absorb at anyone tii:ne. . Also; the irrigation
manager Can set the run times to reflect the current C.I.M.I.S. data.
2. Sprinkler head lavout is "head to head"; meaning that eacb sprinIder's coyerage
radius reaches to the neXt sprinkler head in the system; thus providing the beSt
distribution uniformity (DU) possible.
3. Matched precipitation rate nozzles have been utilized. By matched precipitation
rate it is meant that a designer can mix in the same irrigation station nozzles with
varying spray patterns (ie; 900s, 1800s, and :3600s) and still have even precipitation
rates throughout the area, again providing better distribution uniformity. This
project analysis allows for low rate irrigation application for trees, shrubs and
ground cover, depending upon soil percolation rate.
4. Low precipitation rate nozzles have also been. utilized to reduce the. amount of
flow on all slopes 10% or greater. (In comparison to conventional or standard
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gallonage nozzles which emit considerably more water in the silrne amount of
time, increasing theprobabi!ity of water waste by runoff.)
Irrij!;ation stations (the area that one irrigation valve Services) have be~n separated
. ,"",--'.-.".-..-.','.-.','.-',',',""',"',',",','',",',','",".-."-.',',",',',',',',','.-.".-..'.-,''-""-""-""-'-'-'--'-'--'-"':-""."'+."""-.'-"."'.""':""':'-':',.
to conserve water as follows: sun and shade exposures are separated; slopes are
separated from flat areas; turf and shrub areas are separated. All the areas listed
individually to reflect current CJ.M.I.S. data and tbe runoff characteristics of eacb
Station by the Owner or Irrigation Manager.
G. SAVINGS:
compared with the water auditing program described by Tbe Depatllllent of Water
Resources for existing irrigation systems). The principles described within this landii<;ape
water management plan represent a substantial water savings over conventional irrigation
designs and management procedures.
We have conservatively estimated what a comprehensive landscape, irrigation, and water
management plan could provide in water savings:
DescriPtion
Water Savine-s (%)
Irrigation Design. and Management
Rain Gauge
Native Drought Resistant Plant Materials
Estimated Total Savings
(Total Landscaped and Irrigated Area of this Project ,,;
+ CIMIS INFO
H. ACI'UAL SA VINaS:
Estimated Minimal (including turf)
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Design Consumption for One Year:
Estimated Maximum (excluding turf)
Design Consumption for Qne Year:
Total Estimated Savings
.""",-"",.,-,,-, -,-,,-, -,-. , ,
xxxxxxxxxxxxxx
CONCLUSION:
Under the Summer and Pall conditions, it is critical that native plant materials be kept much
closer tome dry end of the spectrum or bell curve of moisture content, than to the moist ;ind wet
end. . Paying close attention to ET observations will give guidance to irrigation application rates
(see summary). .. Contrary to customary belief, it is not proper horticultural practice to keep the
soil. surface in an artificially wetted condition. Optimum field moisture displaces oxygen needed
for creation of biological gasses and nutrients required for healthy root, stem and crown growth.
Nature in its mysticism will alW&Ys outwit man. It is essential that we avoid trYing to be too
good to the flora and accept the natural signals given off by the subject genus or species. . As an
example, a broad leaf evergreen may start to curl its leaves as the sun rises hotter in the sky;
does this mean the leaves are drying out? Chances are the opposite is true; Le., the leaf may cud
to reduce its surface area to keep from getting too much light and/or reduce the. actual
evaporation rate. Keep in mind that steady winds cause evaporation also even under cloudy
conditions.
The true teSt of this or any other system as designed is the ability to observe plant behavior
before drowning the plant with water. It does not make sense to irrigate native plants during a
rainy season because native plant materials thrive on seasonal rainfall only; even during times
of installation of the plants, it is unnecessary to maintain optimum moisture for an extended
period of time to guarantee survival. In fact, survival can pretty well be guaranteed by prudent
use of a soil probe and diligent inspection, maintenance and operation of the irrigation system.
The advent of winter and spring conditions will provide ample. moisture to the native plant
inaterial for the first season after transplant and may only need minor supplemental (customary
psychological) irrigation, when in reality the native plant material will perform better on neglect.
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The irrigation schedule attached outlines the probable timing of the controller. Each month the
irrigation times must be evaluated and corrected. . It is not sufficient to set the controller and
walk away; It is important that oncsite personnel become familiar with the. plant materials in
order to proficiently operate and maintain the system.
IRRIGATION STATIQN REQUIREMENTS
(Sample)
PUMPMAXlMUM.15 GPM
SYSTEM :BV ALUA TED FOR AVERAGE I';/WEEK APPLlCATI.oN
1
2
3
4
5
6
7
8
9
10
11
12
13
AVERAGE PR*
INJHR.
0.82
0.95
1.03
1.08
1.03
0.84
1.06
1.85
1.03
1.85
1.03
1.03
1.03
SYSTEM
GPM
4.6
11.6
14.0
12A
7.0
5.8
11.4
10.0
12.8
12.6
lOA
2.4
8.6
RUNTIME
HOURS
1.22
1.05
0.97
1.08
0.97
1.19
0.94
0.54
0.97
0.54
0.97
0.97
0.97
VALVE #
* PR= precipitiltion rate. in gallons per minute
NOTE: REFER TO THE ATTACHED CALENDAR OF POSSffiLE OPERATION TIMES FOR
EACH SYSTEM
RULE OF THUMB:
1" PRREPRESENTS 6".12" WATER PENETRATION INTO THE SOIL, I.E., CLAYEY.
...:.-,'.'.,;..'.;.,'........','.','.:-'.;-;.'.;..<.:...:.:-:-:.,.:-:...:.:-..:->:':''':':''':':''':',',,:-,-:':',-:':',-:-:-,,:->,,:->,,:-,-:':',',',,,',-,'..;-,'.-:-:-.....'-,,-,'-,,-,'-,,->-,,-,'-'...'-'..,...--..-'.....,...,....-..'.........-....,...,..-.....,.-'.-.._..-.._..-.....-.._..-.'_..-.',.-.',.....-.._'.-.'-',-,'-',-,'-','-'--,'-',-,'-',-,'-',',.,'-',-,'-',-,'-'.'.',.'-,-.'-'.-,'-'.-.'-','.',.....,..','.'.'-'.'....,'.'-',''',','.
SANDY LOAM. ALWAYS VERIFY WITH SOIL PRQBE.
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STATION #
1
:z
3
4
5
6
7
g
9
10
11
12
13
QNE IRRIGATIQN CYCLE
DURA TIQN TQ APPLY 1/3 INCH WATER
",,,,,,,,,,,, (EACH'" REPRESENTS 4 MINUTES APPUCA TION TIME)
**""" .
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