HomeMy WebLinkAbout02-27-2013 PC Item 1 Attch 7ATTACHMENT 7
ADDENDUM TO EIR 07-01 (IS-13-001
ATTACHMENT 7
ADDENDUM TO
SECOND -TIER FINAL
ENVIRONMENTAL IMPACT REPORT EIR 07 -01
NAME: EUC SPA and FBC Amendment
LOCATION: Properties within the Eastern Urban Center (EUC) bounded
by Birch Road on the north, Eastlake Parkway on the east,
Hunte Parkway on the south and SR 125 on the west.
APPLICANT: SLF 1 V/Mcmillin Millenia JV, LLC
NO: IS -13 -001
DANE: February 13, 2013
I. BACKGROUND /SCOPE OF ANALYSIS
purpose of this Addendum is to address the proposed project, an amendment to the
' Sectional Planning Area (SPA) Plan and Form Based Code (FBC) to address the
and distribution of land uses and building heights within Districts 3, 4, 7 and 10.
As the lead agency for the project under the California Environmental Quality Act
(C QA, Public Resources Code, Sec. 21000 et seq.), the City of Chula Vista prepared
an conducted an environmental analysis (Second -Tier Environmental Impact Report
(Elk-07-01). The Final Second Tier Environmental Impact Report (EIR 07 -01) for the
Otay Ranch EUC SPA Plan, Tentative Map and related items was certified on September
151 2009. The EIR addressed the development of the the207 acres of the Otay Ranch.
are no new environmental impacts not examined in the certified Program EIR
�d for the Otay Ranch General Development Plan (EIR 90 -01) and the Gneral Plan
EIR (EIR- 05 -01) except as described in the Second -Tier Final EIR 07 -01.
The proposed amendments to the EUC SPA Plan and FBC are based on requested
changes to the distribution of land mixes within various districts as shown on the Site
Uti ization Plan a well as allowable changes in building height as described in the FBC.
Mi igation measures from the Mitigation Monitoring and Reporting Program (MMRPs)
ass ciated with FEIR 07 -01 are still valid and applicable to this project. The physical
dei elopment of the 207 acres has been previously addressed in the certified EIR. Thus,
this Addendum focuses on the proposed EUC SPA and FBC amendment.
The environmental analysis presented in this document addresses the modification of the
previously approved SPA Plan and FBC. Because the modifications to the SPA plan, and
associated FBC/ Development Standards would not result in any increase in allowable
uni s nor an adverse expansion of the limits of grading, the proposed SPA and FBC
ndment is considered to be adequately covered under FEIR 07 -01 and no further
ysis is warranted.
II. I PROPOSED AMENDMENTS
(a)
applicant has applied to amend the EUC SPA and Development Standards /FBC in
to 1) change the allowable building heights within the Project area 2) redistribute
esidential sq. ft. between districts and 3) remove District 10 as an alternative
ion for the elementary school.
applied for include the following:
a) Amend the land use distribution table associated with the Site Utilization Plan
to allow for transfer of units between the various districts
�) Removal of potential location of school site within District 9.
Amend the Development Standards /FBC to allow modifications to the land
use distribution and to the minimum building height requirements.
CEQA REQUIREMENTS
15162 through 15164 of the State CEQA Guidelines discuss a lead agency's
ilities in handling new information that was not included in a project's certified
ental document. Section 15162 of the State CEQA Guidelines provides:
When an EIR has been certified or a negative declaration adopted for a
project, no subsequent EIR shall be prepared for that project unless the
lead agency determines, on the basis of substantial evidence in the light of
the whole record, one or more of the following:
(1) Substantial changes are proposed in the project which will require
major revisions of the previous EIR or negative declaration due to
the involvement of new significant environmental effects or a
substantial increase in the severity of previously identified
significant effects;
(2) Substantial changes occur with respect to the circumstances under
which the project is undertaken which will require major revisions
of the previous EIR or negative declaration due to the involvement
of new significant environmental effects or a substantial increase
in the severity of previously identified significant effects; or
(3) New information of substantial importance, which was not known
and could not have been known with the exercise of reasonable
S
diligence at the time the previous EIR was certified as complete or
the negative declaration was adopted, shows any of the following:
a. The project will have one or more significant effects not
discussed in the previous EIR or Negative Declaration;
b. Significant effects previously examined will be substantially
more severe than shown in the previous EIR;
c. Mitigation measures or alternatives previously found not to be
feasible would in fact be feasible and would substantially
reduce one or more significant effects of the project, but the
project proponents decline to adopt the mitigation measure or
alternative; or
d. Mitigation measures or alternatives which are considerably
different from those analyzed in the previous EIR would
substantially reduce one or more significant effects on the
environment, but the project proponents decline to adopt the
mitigation measure or alternative.
tion 15164 of the State CEQA Guidelines provides that:
A. The lead agency shall prepare an addendum to a previously
certified EIR if some changes or additions are necessary but none
of the conditions described in Section 15162 calling for
preparation of a subsequent EIR have occurred.
B. An addendum need not be circulated for public review but can be
included in or attached to the final EIR.
C. The decision - making body shall consider the addendum with the
final EIR prior to making a decision on the project.
D. A brief explanation of the decision not to prepare a subsequent EIR
pursuant to Section 15162 should be included in an addendum to
an EIR, the lead agency's required findings on the project, or
elsewhere in the record. The explanation must be supported by
substantial evidence.
Th s Addendum has been prepared pursuant to the requirements of Sections 15162 and
15'64 of the State CEQA Guidelines. The proposed changes to the project do not
cot stitute a substantial change to the previously approved project. The modifications
proposed would not result in any environmental effects that were not considered in the
Second-Tier Final EIR 07 -01, nor would the changes increase the severity of any of the
impacts identified in this EIR. There has been no significant material change in
circumstances relative to the project, and no new information of substantial importance
has become available after the preparation of the EUC EIR. The mitigation measures
identified in Second -Tier Final EIR 07 -01 would be equally applicable to the revised
project. Therefore, in accordance with Sections 15162 and 15164 of the State CEQA
Gu Oelines, the City has prepared this addendum to Second Tier FEIR 07 -01.
IV ANALYSIS
No new significant impacts were identified beyond those identified in Second -Tier Final
EI 07 -01. Therefore, no new additional mitigation measures or modifications to
exiting mitigation measures are required.
The reduction in building height in District 7 and portion of District 10 which front along
Eastlake Parkway will have less than significant effects upon the overall aesthetics of
Mi lenia. In exchange for allowing a reduction in minimum building height from three
(3) to two (2) stories for buildings fronting primarily along Eastlake Parkway, there is an
added requirement that a 2- story minimum building height will only be allowed if they
provide additional architectural treatment and punctuate the top building line with
vertical elements to avoid the continuous two -story roof line. In addition, buildings facing
"D" Street must now contain a 3 -story minimum height, and buildings at corners of
var ous intersections of Eastlake Parkway could either be a 3 -story or have enhanced
ve r -ical features to emphasize height. This additional requirement for architectural
tre tment would also apply to 2 -story buildings within Lot 11 (District 3) which front
along Eastlake Parkway.
n an aesthetic standpoint, the requirement for these additional architectural elements
punctuating the roof lines with vertical elements of future two -story buildings would
.inate any negative visual effects to the overall "urban character" of Millenia which
'it otherwise occur.
Use
Mil enia contains a mixture of residential and non - residential uses (retail and office)
whi h are distributed within and between the various land use districts. The proposal
incl ides the removal of all 10,000 non - residential square footage from District 7, which
changes the category of this District from "Mixed Use" to "Residential ". The 10,000
square feet within the "low" category of non - residential use will be transferred with half
being added to the "low" category of District 3 and other half added to District 4. The
170,000 sq. ft. within the "target" category in District 7 would be transferred into the
"target" category of District 4.
In regards to the transfer of "low" and "target" square footage, while there may be minor
effects in terms of the proximity of retail within walking distance to future residents. By
adding half of the commercial sq. ft into the "low category" of District 3, the intent of
providing convenience commercial within the eastern part of the EUC is maintained, and
as result, there is no significant impact created by this internal redistribution.
The applicant is also proposing to remove the 400,000 sq. ft. contained within the "High"
non-residential category of District 7. Presently, Section 04.05.001 requires that any
red iction in intensity in any district must be met with a corresponding increase in another
dis 'ct and vice versa. Amended language is being proposed to only require such transfer
in t e case of the square- footage or unit count within the "low" and "target" category.
no
be
ause the "low" category indicates the minimum amount which must be constructed,
the sum total of the "target" category indicates the maximum amount that may be
;tructed, the removal of this transfer requirement from the "high" category will have
mpact on the resultant amount of residential units or commercial acreage actually
3tructed.. Given that the EUC's approvals were based on the "target" land use
punts, the only way any square footage or unit counts within the "high" category can
; onstructed within any District would require the corresponding removal of square -
age /unit count within the "target" category of another District. This would ensure
the maximum allowable amount is not exceeded. Thus, the removal of the 400,000
ire -feet currently shown within the "High" category of District 7 would now be
wed, once the amended language is adopted, and have no impact on the overall
ect constructed on the site.
CLUSION
3uant to Section 15162 and 15164 of the State CEQA Guidelines, and based upon the
ve discussion and substantial evidence in the record supporting said discussion, I
Eby find that the proposed project will result in only minor technical changes or
itions which are necessary to make the Environmental Impact Reports adequate under
JA.
Steichen
)ciate Planner
1. Project Site Plan(s)
2. Executive Summary to EIR 07 -01
City of Chula Vista Environmental Review Procedures
City of Chula Vista General Plan Update
Second Tier EIR #07 -01
his Page Left Blank
(10/6/09)
Regional Vicinity
Eastern Urban Center
OW v��A : _...:..OTAY RA-vCH
1 -7.
J EE Cajon
La Mesa
Grove project
Location
Cinti Land Planning
SW V*q%apiv;maw
NS b7%-:7
Exhibit 1-1
SPA PLAN
w.0
07909 mol M:rmll *n=o$
~�
^^°
uture SPA
pa
""`
EXECUTIVE SUMMARY
T is Environmental Impact Report (EIR) is an informational document intended for use by the
CHV of Chula Vista, other public agencies, and members of the general public in evaluating the
po ential environmental effects of the proposed Eastern Urban Center (EUC) Sectional
PL, nning Area (SPA) Plan located in the Otay Ranch subregion of the City, The proposed SPA
Plc, n is a document that refines and implements the land use plans, goals, and objectives of
th Otay Ranch General Development Plan (GDP) for the development of the EUC
CEQA Statute Section 21002 requires that an EIR identify the significant effects of a project on
thE environment and provide measures or alternatives that can mitigate or avoid these effects
Th s Draft EIR evaluates the environmental effects associated with development of the
prc posed EUC SPA Plan and discusses the manner in which the SPA Plan's significant effects
can be reduced or avoided through the implementation of mitigation measures or feasible
alternatives to the proposed project. In accordance with Section 15130 of the CEQA
Gu delines, this EIR also includes an examination of the effects of cumulative development.
Otay Ranch GDP Program Final EIR (EIR 90 -01, SCH #89010154) is incorporated by
ence in accordance with CEQA Guidelines Section 15168(d), This Draft EIR addresses
onmental issues associate with the EUC that were not evaluated at a project level in the
Ranch GDP Program Final EIR and updates information in the Otay Ranch GDP EIR
ininq to the EUC SPA Plan area
Thi summary provides a brief synopsis of the project description, project alternatives, and the
res lts of the environmental analysis presented in this EIR document
1.
ThE
T
aci
Hu
PROJECT LOCATION AND SETTING
Otay Ranch GDP planning area lies within the East Planning Area of the City of Chula
a, The EUC is located in the northeastern portion of the approximate 9,500 -acre Otay
By Parcel of the Otay Ranch GDP project area, Telegraph Canyon Road and the Eastlake
imunity bound the Otay Valley parcel on the north; Lower Otay Lake and the Arco Olympic
ning Center from the eastern limits; the Otay River Valley encompasses the southern limits;
other recent development, including Sunbow 1 and 11, the Otay Landfill, and the Coors
)hitheater and Water Park, comprise the western limits The EUC is an approximately 237 -
I parcel located at the east side of State Route 125 (SR -125) between Birch Road and
to Parkway. The proposed EUC SPA Plan site comprises approximately 207 acres, or
-oximately 90 percent, of the total EUC land area.
Urban Center Sectional Planning Area EIR
orinphouse No. 2007041074
Page ES-1
City of Chula Vista
May 2009
Executive Summary
ie EUC parcel consists of fairly flat mesa tops and gently rolling hills within the high point of
e Otay Ranch, with elevations ranging from approximately 520 feet above mean seal level
1SQ in the southeast corner of the site to a high of approximately 640 feet above MSL in the
:rater of the property, The EUC area has historically been used for grazing and agriculture
id no development presently occurs on the site.. The project site is surrounded by existing
tay Ranch development, including the Otay Ranch Town Center (Planning Area Twelve) to
e north, north of Birch Road; Village Seven to the west, west of SR -125; and Village Eleven
the east; east of Eastlake Parkway,
PROJECT BACKGROUND
Tie proposed EUC SPA Plan is part of the designated EUC planning area within the Otay
Ranch GDP The Otay Ranch GDP was adopted by both the Chula Vista City Council and the
San Diego County Board of Supervisors in October 1993, Both agencies were involved in the
development and approval of the plan because the planning area included land falling within
the jurisdiction of both agencies The GDP was amended in December 2005 The GDP
es,tablishes land plans, design guidelines, objectives, policies, and implementation measures
lh t apply to all portions of Otay Ranch while supporting a balance of housing, shops,
rkplaces, schools, parks, civic facilities, and open spaces on a total of approximately
2 ,976 5 acres. The majority of development is intended to be clustered in villages, with
nveniently located features and well - defined edges such as the Chula Vista greenbelt, open
aces, and wildlife corridors,
3.
,der the implementation program for the Otay Ranch GDP, review and City Council approval
SPA plans is required before final development entitlements can be considered, The GDP
fines the EUC as a regional center that would contain the most intense development in Otay
nch and would serve as the urban heart of the region, Uses and intensities are intended to
:ate a lively 24 -hour environment, with a creative combination of uses, building types and
ienities, These uses include regional retail commercial, hotel, office uses, and medium to
h density residential uses. Retail and office development within the EUC would be of an
msity 'compatible with a °downtown° urban center. The most intense development is
icentrated near the transit station, with building heights and sizes gradually decreasing near
edge of the planning area
PROJECT DESCRIPTION
proposed project consists of four components, including (1) the EUC SPA Plan, (2) the off -
Soils Stockpiling Area (SSA); (3) off -site Salt Creek Sewer Lateral Improvement Area
>L); and (4) the off -site Poggi Canyon Sewer Improvement Area (PCSI)..
em Urban Center Sectional Planning Area EIR
;Clearinghouse No 2007041074
Page ES-2
City of Chula vista
May 2009
Executive Summary
EUC SPA Plan
Tie proposed SPA Plan is comprised of the following land uses: a maximum of 2,983 multi-
f mily residential units; a maximum of 3.487 million square feet of non - residential floor area;
approximately 16 acres of urban parks; a potential approximately 5 5 -acre elementary school
site; an approximately one -acre fire station site; and approximately 30 acres of street right-of-
way, Development would occur in ten specific districts, including five residential neighborhood
districts, two gateway districts, a business district, a mixed -use civicloffice core district, and a
main street district, Although the orientation of specific districts may be more residential or
non-residential in character, mixed use would be permitted within all districts The EUC SPA
P an establishes density /intensity ranges for each district, although density /intensity may be
transferred between districts.
T ie SPA Plan would feature an internal grid street system, with a primary (4 -lane major) north-
south street providing uninterrupted access between Birch Road and Hunte Parkway The
S A Plan would provide two access points on Birch Road, three access points on Eastlake
P irkway, and two access points on Hunte Parkway A greenway trail linking with the City's
G eenway Trail system would enter the EUC via Bob Pletcher Way on the west and exit the
E JC via a pedestrian bridge across EastLake Parkway on the east. The EUC would provide a
transit station and guideways for Bus Rapid Transit (BRT) and Chula Vista Transit (CVT)
T ansit stops would be located within % mile of the majority of uses in the EUC
Si a preparation and grading for the EUC would occur under one of two options: Grading
O )tion 1 and Grading Option 2 The estimated earthwork quantity under Grading Option 1
would be approximately 3.6 million cubic yards of cut and fill. Earthwork would be balanced
b tween the EUC and off -site locations, with 2.5 million cubic yards of fill to remain in the EUC
ar d 11 million cubic yards to be exported off -site to an approximately 303-acre parcel to the
south in the designated Village Nine, Grading Option 2 recognizes that adjacent property
owners may not consent to off -site grading and balances quantities within the project site and a
p rtion of the remainder of the EUC, including the Hunte Parkway right -of -way, Under this
option, the estimated earthwork quantity under Option 2 would comprise 3.2 million cubic yards
of cut and fill. Under this option, the grading necessary for the construction of the off -site
p rtions. of streets A, B, C and M, and Hunte Parkway is evaluated.
DE velopment of the EUC SPA Plan would occur non - sequentially to allow flexibility based on
market changes or regulatory constraints and public infrastructure needs /requirements, It is
as umed that construction could begin in late 2009 with buildout of all residential units within
the EUC SPA Plan area by Year 2020, along with approximately two million square feet of non-
residential uses, The remainder of the project is estimated to be built out by Year 2030,
Th3 proposed EUC SPA Plan is consistent with the maximum residential development and non -
re idential floor area set forth in the Otay Ranch GDP and no amendments of the General Plan
or MP are required,
ern urban Center Sectional Planning Area EIR
:Clearinghouse No 2007041074
Page ES -3
City of Chula Vista
May 2009
Executive Summary
Under Grading Option 1, the approximately 59 -acre off -site SSA to the south would be
a fected . Therefore, stockpiling on the SSA is evaluated in the EIR as a potential component
o the proposed project, Stockpiling activities include grading and compaction of fill soils .
rading would be completed in one or two phases, Under the single phase, stockpiling and
g ailing would be completed in approximately 12 -18 months and under the two- phase, the first
p ase would be completed in 9 months and second phase would be completed in 12 months
Sewer Lateral Improvement Area (SCSL
e SCSL would involve the addition of a 173 -foot, 15 -inch diameter sewer line to the Salt
?ek trunk sewer within an approximate 1.44 -acre area. The proposed sewer pipeline would
installed using a combination of conventional open trench excavation and boring and
king; The SCSL will also include modification of an upstream manhole. This project would
short -term in nature
PCSI involves the replacement of a section of 18 -inch line with a section of 21 -inch line
iin the Olympic Parkway and Brandywine Avenue intersection, The PCSI project would
uire an approximately 8 -foot -wide, 14- foot -deep excavation trench This project would be
art -term in nature.
E.
A 1 liscretionary action is an action taken by an agency that calls for the exercise of judgment in
de iding whether to approve or how to carry out a project. The following discretionary actions
are associated with the proposed EUC project and would be considered by the Chula Vista
Planning Commission and City Council:
(1) Adoption of the SPA plan and associated documents including, but not limited to:
— SPA Plan,
— Form Based Code (Planned Community District Regulations & Village Design
Plan),
Public Facilities Financing Plan /Fiscal Impact Analysis,
Air Quality Improvement Plan,
— Water Conservation Plan,
— Non - renewable Energy Conservation Plan,
m Urban Center Sectional Planning Area EIR
Clearinghouse No 2007041074
Page ES-4
City of Chula Vista
May 2009
Executive Summary
— Affordable Housing Plan, and
— Urban Parks, Recreation, Open Space & Trails Plan,
(2) Approval of Tentative Subdivision Map to establish the layout of land uses, developable
and open space lots, and infrastructure requirements for the EUC;
(3) Certification of a Final EIR and adoption of a Mitigation Monitoring and Reporting Program
pursuant to the California Environmental Quality Act (CEQA).
ntial future discretionary actions may include approval and adoption for a Parks
ement and a Development Agreement If it is determined that either of the agreements
rtes from the impacts analyzed in this EIR, additional environmental review will be
ucted prior to approval of the Agreement, in accordance with CEQA
In addition, this EIR may be used by other responsible agencies to implement the proposed
p ject, including the Regional Water Quality Control Board,
4.
TE
5.
M
th
ENVIRONMENTAL ANALYSIS
ES -1, Summary of Environmental Impacts and Mitigation Measures, on page ES -8
irizes the project's impacts according to established thresholds under each environmental
proposed mitigation measures, and potential significant and unavoidable impacts after the
lentation of all feasible mitigation measures as analyzed in detail in Section 4.0 of this EIR.
PROJECT ALTERNATIVES
ree project alternatives have been evaluated in the Draft EIR. These include: (1) the "No
)ject" Alternative;" (2) the "Reduced Density Alternative;" and (3) the "Adjusted Land Use
t" Alternative.. The No Project Alternative assumes that no SPA Plan would be developed
hin the EUC, and the existing land uses within the project site would remain unchanged
,.ordingly, this alternative would be equivalent to the conditions discussed under existing
editions for each category analyzed in this Draft EIR. The project site would remain in
•icultural use or remain fallow. Since no development would occur, environmental impacts
=iated with construction and development would be avoided. The No Project Alternative
uld avoid the proposed EUC SPA Plan's significant and unavoidable impacts associated
h the permanent change in visual character of the project site from open space to dense
an development; construction and operation air emissions; cumulative traffic impacts on
.e segments of the 1 -805 freeway; and permanent loss of Farmland of Local Importance
Never this alternative would be less beneficial than the project in meeting the General Plan
i GDP objectives that call for the Eastern Urban Center to function as the high - density,
red use downtown and regional heap of the Otay Ranch Subarea and East Planning Area.
ern Urban Center Sectional Planning Area EIR
Clearinghouse No 2007041074
Page ES -5
City of Chula Vista
May 2009
Executive Summary
In addition, the No Project would be less beneficial in that it would not provide a link in the
City's Greenway Trail; it would not remediate existing stockpiled soils that have the potential to
impact downstream habitat; it would not remediate soils containing OPCs associated with the
former use of pesticides in the project site; and it would not provide affordable housing, as
ould the proposed project, The No Project Alternative would not achieve any of the project
o jectives and would be inconsistent with the General Plan and GDP. As school, fire, and
library sites would not be provided this alternative would result in a significant impact on these
r gion- serving public services.
Tie Reduced Density Alternative ( "Alternative 2 ") would reduce overall development by 25
percent, resulting in a total 2,237 residential units and 2.62 million square feet of non-
residential floor area This alternative assumes that the project's library and fire station would
be respectively reduced commensurate with reduced demand. The Greenway Trail would be
developed as under the proposed EUC SPA Plan. In addition, a 5- to 6 -acre school site would
bo provided as under the proposed project. However, parkland and in lieu fees would be
proportionately. reduced by 25 percent for a total of 11.72 acres of parkland and in lieu fees
equivalent to 5 8 acres, for a total equivalent to 17,5 acres, Altemative 2 would meet the basic
objectives of the projects, but assumes that the EUC would have an overall lower building
profile than anticipated under the Otay Ranch GDP. In contrast to the proposed project, this
al ernative would be inconsistent with the General Plan and GDP and would, therefore, require
a General Plan Amendment and GDP Amendment, Alternative 2 would reduce impacts that
are population based and, therefore, would have incrementally less impact on services and
ut lities Due to reduction in daily and peak hour traffic, this alternative would incrementally
reduce impacts associated with mobile air quality, mobile noise, and traffic, including four
previously significantly impacted intersections prior to mitigation. However, this alternative
would not reduce the project's significant and unavoidable impacts associated with the
Permanent change from open space to dense urban development, construction and operation
ai emissions, cumulative traffic on three segments of 1 -805, and the permanent loss of
F rmland of Local Importance.
The Adjusted Land Use Mix Alternative ( "Alternative 3 ") would change the project's mix of land
uses. including a 62.5 percent increase in residential units and a 53.5 percent decrease in total
non-residential floor area, Alternative 3 would provide 1,62 million square feet of non -
re idential uses (including an elementary school) and 4,850 residential units, Other changes
from the EUC SPA Plan would be a 40 percent reduction in hotel rooms, and an increase in
parkland (20.37 acres of parkland and seven parks, compared to the proposed project which
wc uld provide 15 63 acres of parkland and six parks) Although Alternative 3 would provide 30
pe cent more parkland than the proposed project, as residential uses would increase 62.5
pe cent, parkland obligation would respectively increase High Rise Commercial /Office floor
area and civic /public facilities would be the same as under the proposed project and the
reduction in non - residential floor area would be primarily made with respect to regional and
local retail uses. Alternative 3 would generate 52,097 fewer trips than the proposed project.
Th re would be a corresponding reduction in A.M and Pm peak hour trips, As with the
proposed project, all impacts to the study area intersections and roadway segments would be
Eas em Urban Center sectional Planning Area EIR City of Chula Vista
Stat clearinghouse No 2007041074 May 2009
Page ES-6
Executive Summary
iced to less than significant. Significant and unavoidable impacts along three segments of
1 -805 freeway would not be avoided with the alternative,
Al ernative 3 would not implement the GDP in providing a mixed -use environment in which
re idential uses are intermixed with a strong retail component to the same extent as the EUC
SPA Plan. In addition, it would exceed the GDP and General Plan estimated residential units
foi the EUC by 52 5 percent The 53 5 percent reduction in non - residential floor area would be
less in keeping with the objective to establish a flexible and responsive land use and facility
pl c, n which assures project viability in existing and future economic cycles, since Alternative 3
is predominantly residential Due to the change in the balance of residential and non-
residential uses, Alternative 3 would not implement the goals, objectives, and policies of the
C ula Vista General Plan and the Otay Ranch GDP to achieve a mined -use urban place that
se :s itself apart from surrounding suburban villages to the same extent as the proposed
project. Amendments to the General Plan and GDP would be required to implement this
alt rnative, Alternative 3 would have the same significant and unavoidable impact as the
project regarding the change in the open space character of the project site to dense urban use
and would not avoid the project's significant and unavoidable impact construction and
operation air emissions; permanent loss of Farmland of Local Importance; and cumulatively
si nificant and unavoidable impacts on three segments of the 1 -805 freeway. In addition, unlike
the proposed project, Alternative 3 would have a significant and unavoidable impact on
sc ools Alternative 3 would have an incrementally greater impact on geology, fire, police,
lib ary, water, wastewater, solid waste, and population,
The No Project Alternative would be the environmentally superior alternative, as it would
en irely avoid the proposed project's significant and unavoidable reduction of open space, air
qu lity, loss of agricultural lands, and cumulative impacts on the 1 -805. However, as the No
Project Alternative is determined to be environmentally superior, an environmentally superior
alternative must also be identified among the remaining alternatives. Thus, Alternative 2 is
identified as the environmentally superior alternative as it would incrementally reduce traffic;
mobile and stationary operational air emissions; operational noise; biological resources, water
quality, exposure to geologic hazard; demand for fire and emergency services, police services,
schools, libraries, water supply, wastewater, solid waste services; and impacts affecting global
clirnate change. However, as with Alternative 3, this alternative would not eliminate any of the
project's significant and unavoidable impacts associated with the change in the open space
character of the project site; construction and operation emissions, and loss of Farmland of
Local Importance
em Urban Center Sectional Planning Area EIR
Clearinghouse No 2007041074
Page ES -7
City of Chula Vista
May 2009
*N�ur�
�-- 70""
CITY OF
iULAVISTA
4tay Ranch Eastern Urban Center (EUC)
Sectional Planning Area (SPA) Plan
Final Second Tier
Environmental Impact Report
Sep and Tier El #07 -01
SC1H No, 2007041074
Sebtember 2009
216 Fourth Ave, Chula Vista California 11 91910
Executive Summary
Table ES -1
Summary of Environmental Impacts and Mitigation Measures
Impact
Mitigation Measures Significance after Mitigation
Land Use:
Threshold 1: Physically divide an established
community (incompatibility with adjacent and
surroundina uses.
Construction and operation of the project (EUC SPA
No significant impacts have been identified, and no mitigation Less than significant
Plan and off -site SSA, SCSL, and PCSI) would not
measures are required.
physically encroach upon or physically divide existing
established communities or land uses. The
proposed proiect would be compatible with existing
and planned adjacent land uses. Therefore, impacts
with respect to this threshold would be less than
significant.
Threshold 2: Conflict with any applicable land use
Plan, policy. regulation, or agency with iunsdiction
over the proiect. adopted for the purpose of avoidina
or mitigating an environmental effect.
Construction and operation of the project would be
As no significant impacts have been identified, no mitigation Less than significant
consistent with all applicable land use plans and
measures are required.
policies, and other regulatory plans. Therefore,
impacts with respect to this threshold would be less
than significant.
Threshold 3: Conflict with any applicable habitat
conservation plan or natural community habitat
conservation plan.
Construction and operation of the proposed project
As no significant impacts have been identified, no mitigation Less than significant
would be consistent with the MSCP and RMP
measures are required.
regarding preservation standards, sensitive resource
studies, maintenance and monitoring programs, and
Eastern Urban Center Sectional Planning Area Elk
City of Chula Vista
State Clearinghouse No. 2007041074
Mav 2009
Page ES -8
Executive Summary
Table ES -1
Summary of Environmental Impacts and Mitigation Measures
Significance after
Impact Mitigation Measures
_ _ Mitigation
control of water runoff and water quality and,
therefore, impacts with respect to this threshold
would be less than significant.
Landform Alteration /Aesthetics:
Thresholds 1 and 2: Have a substantial adverse
effect on a scenic Vista; Substantially damage scenic
resources, including but not limited to trees, rock
outcroppings, and historic buildings within a state
scenic highway.
Construction and operation of the project would not
significantly impact view resources. However, a
mitigation measure is recommended to ensure that
future development in an 89 -foot portion of the
project site along Hunte Parkway would meet the
City's Scenic Roadway standards.
Threshold 3: Substantially degrade the existing
visual character or guality of the site and its
surroundings.
Development of the site would change the
undeveloped, open character of the project site to
one of high - density urbanized uses, which is
considered to be a potentially significant impact.
Threshold 4: Be inconsistent with General Plan
GDP or other obiectives and Policies regarding visual
character thereby resulting in a significant ohvsical
impact.
Eastern Urban Center Sectional Planning Area EIR
State Cleannghouse No. 2007041074
Mitigation Measure 4.2 -1: Less than significant with
Prior to approval of landscape improvement plans that involve the mitigation
89 -foot portion of the EUC SPA Plan's District 10 abutting Hunte
Parkway, the Applicant shall demonstrate to the satisfaction of the
City Engineer that future development. slope grading and
landscaping, signage and utilities will enhance the scenic quality
of the route.
No feasible mitigation measures have been identified that would Significant and unavoidable
reduce this impact to a less than significant level. impact regarding the visual
change from open space to
urban development.
Page ES -9
City of Chula Vista
Mav 2009
Table ES -1
Summary of Environmental Impacts and Mitigation Measures
Impact
The project would be consistent with the General
Plans policies that address aesthetic character and
landform. Therefore, potential impacts with respect
to this threshold would be less than significant.
Threshold 5: Create a new source of substantial light
or glare which would adversely_ affect day or
nighttime views in the area.
Light and glare impacts would be less than
significant. However, because potential impacts
associated with shade, shadow and wind access
impact cannot be determined until the specific
locations, sizes, and orientation of future buildings
are established, this impact is considered
potentially significant.
Threshold 6: Alter areas of sensitive landforms or
-grade steep slopes that may be visible from future
development and roadways that negatively detract
from the prevailing aesthetic character of the site_ or
surroundinq area.
Exposed slopes and other alterations in EUC SPA
Plan area or the SSA would not detract from the
prevailing aesthetic character of the site or
surrounding area. Grading associated with off -site
roads under Grading Option 2 would be temporary
Eastern Urban Center Sectional Planning Area EIR
State Clearinghouse No. 2007041074
Executive Summary
Significance after
Mitigation Measures Mitigation
No significant impacts have been identified, no mitigation Less than significant
measures are required.
Mitigation Measure 4.2 -2:
In accordance with Section 04.04.001 of the FBC, prior to
design review approval for any structure eight stories and
above, the Applicant shall prepare to the satisfaction of the
Development Services Director, a light, shadow and wind
pattern analysis demonstrating that adjacent shadow - sensitive
uses are not shadowed for more than 3 hours between 9:00
A.M. and 3:00 P.M. during the winter or for more than 4 hours
between 9:00 A.M. and 5:00 P.M. during the summer or any
approved City- standard in place at the time the light, shadow
and wind pattern analysis is performed.
Less than significant with
mitigation.
As no significant Impacts have been identified, no mitigation Less than significant
measures are required.
Page ES -10
City of Chula Vista
May 2009
Table ES -1
Summary of Environmental impacts and Mitigation Measures
Impact
until the adjacent property is developed with planned
uses and ultimate grades. Thus, landform alteration
impacts would be less- than - significant.
Transportation:
Threshold 1: Cause an increase in traffic which is
substantial in relation to the existing traffic load and
capacity of the street system (i.e., result in a
substantial increase in either the number of vehicle
trims, the volume to capacity ratio on roads or
congestion at intersections). �.
Intersections:
Potentially significant impacts would occur at the
following intersections:
Horizon Year 2010 With Project:
• Intersection #7
• Intersection #8
Horizon Year 2015 With Project.
• Intersection #8
Executive Summary
Significance after
Mitigation Measures Mitigation
Horizon Year 2090 With Project:
Mitigation Measure 4.3 -1:
Intersection #7: Prior to implementation of the first phase of the
protect (with 15` EDU) at the intersection of Olympic
Parkway /Brandywine Avenue, the Applicant shall secure or
construct the re- striping of the northbound approach to include
one thru lane and one shared thru -right lane and coordinate SB I-
805 Ramps through Brandywine on Olympic Parkway.
Mitigation Measure 4.3 -2:
Intersection #8: Prior to implementation of the first phase of the
project (with 15` EDU) at the intersection of Olympic Parkway/
Heritage Road, the Applicant shall secure or construct the
addition of a southbound right -turn overlap phase.
Eastern Urban Center sectional Planning Area EIR City of Chula Vista
State Clearinghouse No. 2007041074 MaV 2009
Page ES -11
Executive Summary
Table ES -1
Summary of Environmental Impacts and Mitigation Measures
Significance after
Impact Mitigation Measures Mitigation
Horizon Year 2020 With Project. • Horizon Year 2020 With Project. Less than significant with
Intersection #19 Mitigation Measure 4.3-3: mitigation.
Intersection #19: Prior to implementation of the third phase of the
proiect (3,070 proposed protect EDU's) at the intersection of Main
Street/Heritage Road, the Applicant shall secure or construct the
addition of dual northbound and dual eastbound right -turn lanes.
Horizon Year 2030 With Project. Horizon Year 2030 With Project:
• Intersection #1 Mitigation Measure 4.3-4:
• Intersection #7 Intersection #1: Prior to implementation of the final phase of the
• Intersection #15 project (5,270 proposed project EDU's) at the intersection of
Telegraph Canyon Road/Heritage Road, the Applicant shall
• Intersection 916 secure or construct the addition of an exclusive westbound right-
Intersection #19 turn lane and widening of the north leg to provide three thru lanes.
• Intersection #21 Mitigation Measure 4.3 -5:
Eastern Urban Center Sectional Planning Area EIR
State Clearinghouse No. 2007041074
Intersection #15: Prior to implementation of the final phase of the
project (at 5,270 proposed project EDU's) at the intersection of
Birch Road /La Media Road, the Applicant shall secure or
construct the conversion of a westbound thru lane into a shared
westbound thru /right -tum lane.
Mitigation Measure 4.3-6:
Intersection #16: Prior to implementation of the final phase of the
project (at 5,270 proposed project EDU's) at the intersection of
Birch Road /Magdalena Avenue, the Applicant shall secure or
construct the addition of an exclusive eastbound right -turn lane.
Page ES -12
City of Chula Vista
May 2009
Executive Summary
Table ES -1
Summary of Environmental Impacts and Mitigation Measures
Impact
Mitigation Measures
Significance after
Mitigation
Mitigation Measure 4.3 -7:
Intersection #19: Prior to implementation of the final phase of the
project (at 5,270 proposed project EDU's) at the intersection of
Main Street/Heritage Road, the Applicant shall secure or
construct the addition of a dual northbound and a dual eastbound
right -turn lanes and the addition of a dual southbound right -turn
overlap phase.
Mitigation Measure 4.3-8:
Intersection #21: Prior to implementation of the final phase of
the project (at 5,270 proposed project EDU's) at the
intersection of Rock Mountain Road /Magdalena Avenue, the
Applicant shall secure or construct the addition of a dual
southbound left -turn lane and a dual northbound right -turn lane.
Roadway Segments:
Mitigation Measure 4.3 -9:
If the SR- 125 /Otay River Valley interchange is not
Hunte Parkway (SR -125 to Street A): Prior to 5,270 EDU's and if
constructed, the Hunte Parkway segment between
SR -125 and the Otay Valley Road interchange is not constructed,
SR -125 and Street A would operate over capacity
the Applicant shall secure or construct two auxiliary lanes on this
under Year 2030 with Project conditions_ All other
roadway segment as determined necessary by the City Engineer.
road segments would operate at acceptable levels of
service because intersections along 'the road
segments would operate at acceptable levels of
service.
Freeway Segments:
No mitigation measures are available to reduce the projects
Significant and unavoidable
Potentially significant impacts would occur in the
significant cumulative impact with respect to freeway segments.
impact:
following Horizon years:
NB Interstate 805 —
Telegraph Canyon
Road to Olympic
Eastern Urban Center Sectional Planning Area EIR
State Clearinghouse No. 2007041074
City of Chula Vista
May 2009
Page ES -13
Table ES -1
Summary of Environmental Impacts and Mitigation Measures
Impact
Year 2095 With Project.,
SB Interstate 805 — Telegraph Canyon Road
to Olympic Parkway
Year 2020 With Project:
• NB Interstate 805 — Telegraph Canyon Road
to Olympic Parkway
• SB Interstate 805 — Telegraph Canyon Road
to Olympic Parkway
Year 2030 Build -Out With Project.
• NB Interstate 805 — Telegraph Canyon Road
to Olympic Parkway
• SB Interstate 805 — Telegraph Canyon Road
to Olympic Parkway
• SB Interstate 805 — Olympic Parkway to
Main Street
Project Boundary Intersections:
Potentially significant impacts would occur in the
Year 2030 Build -Out With Proiect:
• Hunte Parkway and EastLake Parkway
• Hunte Parkway and Street A.
Eastern Urban Center Sectional Planning Area EIR
State Clearinghouse No. 2007041074
Executive Summary
Significance after
ation Measures Mitigation
Parkway (2020 and
2030 — Cumulative)
SS Interstate 805 —
Telegraph Canyon
Road to Olympic
Parkway (2015, 2020,
and 2030 —
Cumulative)
• SB Interstate 805 —
Olympic Parkway to
Main Street (2030 —
Cumulative)
Mitigation Measure 4.3 -10: Less than significant with
mitigation
Prior to completion of the entire project (8,035 proposed project
EDU's), at the Hunte Parkway /EastLake Parkway intersection,
the Applicant shall secure or construct a right -turn overlap phase
for the eastbound, westbound, and northbound movements.
Mitigation Measure 4.3 -11:
Upon connection of Street A to Hunte Parkway, the Applicant
shall secure or construct the Hunte Parkway/ Street A intersection
Page ES -14
City of Chula Vista
May 2009
Table ES -1
Summary of Environmental Impacts and Mitigation Measures
Im
Other Traffic Issues:
The project would have a potentially significant
impact with respect to consistency with the PFFP
thresholds.
GMOC Analysis
Threshold 2: Exceed, either individually or
cumulatively, a LOS standard established by the
County CMP agency for designated roads or
highways.
eastern uroan center Sectional Planning Area EIR
State Clearinghouse No. 2007041074
Mitigation Measures
with a fourth eastbound through lane, a dual northbound left -turn
lane, and a southbound right -turn overlap phase.
Mitigation Measure 4.3 -12:
The Applicant, in cooperation with the City of Chula Vista, shall
monitor the necessary timing to construct the SR -125 and Rock
Mountain Road interchange to ensure that this improvement is
constructed prior to surpassing the PFFP threshold of 5,270
proposed project EDU's.
Mitigation Measure 4.3 -13:
The Applicant shall construct or enter into an agreement with the
City of Chula Vista to construct and secure, in accordance with
Section 18.16.220 of the Municipal Code, the required street
improvements, including traffic signals, prior to the approval of the
final map that contains the cumulative EDU trigger.
Mitigation Measure 4.3 -14:
On -site streets and boundary intersections shall be constructed in
accordance with the PFFP_ Boundary intersections shall be
constructed to their full - proposed build -out geometry when the
connecting on -site links are constructed. All street improvement
plans shall show project boundary intersections to the satisfaction
of the City Engineer.
No mitigation measures are necessary
Page ES -15
Executive Summary
Significance after
Mitigation
Less than significant with
mitigation
City of Chula Vista
May 2009
Table ES -1
Summary of Environmental Impacts and Mitigation Measures
Impacts on CMP roadway segments (both directions
of Olympic Parkway between 1 -805 and Hunte
Parkway) in both peak periods would operate at LOS
C or D, with and without the proposed project. Thus,
impacts with respect to CMP roadway segments
would be less- than - significant.
Threshold 3: Conflict with adopted policies plans or
pro -crams Supporting alternative transportation (e.g.,
bus turnouts, bicycle racks).
Alternative Transportation
The proposed project would be consistent with
General Plan and GDP policies regarding alternative
transportation. Significant traffic delays along BRT
routes due to stop controlled intersections could
occur. This is considered to be a potentially
significant impact.
Air Quality
Threshold 1: Conflict with or obstruct implementation
of the applicable air Quality plan or General Plan
policies.
The ELIC SPA Plan would conflict with SDAPCD's
currently approved RAQS, which are based in part
on the City's prior General Plan (adopted in 1992
and updated in 2001).
Threshold 2: Violate any air quality standard or
contribute substantially to an existing or protected air
quality violation.
Eastern Urban Center Sectional Planning Area EIR
State Clearinghouse No_ 2007041074
Executive Summary
Significance after
Mitigation Measures Mitigation
No significant impacts have been identified. and no mitigation Less than significant
measures are required.
Mitigation Measure 4.3 -15: Less than significant with
The Applicant shall install traffic signals In streets with exclusive mitigation
BRT transitways throughout the entire site so that future transit
signal priority treatments can be used and signals can be
interconnected.
No feasible mitigation measures have been identified that would Significant and unavoidable
reduce this impact to a less than significant level. impact with respect to
inconsistency with
SDAPCD's current RAQS.
Page ES -16
City of Chula Vista
Mav 2009
Table ES -1
Summary of Environmental Impacts and Mitigation Measures
Impact Mitigation Measures
Maximum construction - related regional emissions Mitigation Measure 4.4 -1:
would exceed the daily significance thresholds for Prior, approval of any grading r
PM10i PM2.5, CO, NOx and VOC_ g pe mits. the following
requirements shall be placed on all grading plans, and shall be
Regional operation - related emissions at milestone implemented during grading of each phase of the project to
years (2010, 2015, 2020 and 2030) would exceed the minimize construction emissions:
daily significance thresholds for NOx, CO, VOC, All unpaved construction areas shall be sprinkled with
PM10 and PM2.5, but are not expected to exceed the
thresholds for SOx. water or other acceptable dust control agents Burin site
Localized CO hotspots analysis demonstrates a less -
grading or demolition activities at least twice daily; g
than- significant impact for all study intersections. a Additional watering shall be applied during windy days or
until dust emissions are not visible;
• Trucks hauling dirt and debris shall be property covered
or maintain at least 12 inches of freeboard to reduce
windblown dust and spills;
• A 20 mile- per -hour speed limit on unpaved surfaces shall
be enforced;
Eastern Urban Center Sectional Planning Area EIR
State Clearinghouse No. 2007041074
• Dirt and debris spilled onto paved surfaces shall be
swept up immediately to reduce re- suspension of
particulate matter caused by vehicle movement;
• On -site stockpiles of excavated material shall be covered
or watered;
• Approach routes to the site shall be cleaned daily of
construction - related dirt;
Pave permanent roads as quickly as possible to minimize
dust;
Page ES -17
Executive Summa
Significance after
Mitigation
Significant and unavoidable
impact: The prolect would
exceed the significance
thresholds for VOC, NO,,
CO, PM,, and PM,., during
the most intense
construction period and
project operation.
City of Chula Vista
May 2009
Executive Summary
Summary of Environmental Impacts and Mitigation Measures
Impact Significance after
Mitigation Measures Mitigation
• Apply chemical stabilizer or pave the last loo feet of
internal travel path within the construction site prior to
public road entry;
• Install wheel washers adjacent to a paved apron prior to
vehicle entry on public roads;
• Remove any visible track -out into traveled public streets
within 30 minutes of occurrence;
Eastern Urban Center Sectional Planning Area EiR
State Clearinghouse No. 2007041074
• Wet wash the construction access point at the end of
each workday if any vehicle travel on unpaved surfaces
has occurred;
Provide sufficient perimeter erosion control to prevent
washout of silty material onto public roads;
• Minimize simultaneous operation of multiple construction
equipment units;
• All construction equipment shall be properly tuned and
maintained in accordance with manufacturer's
specifications. All equipment shall have catalytic
reduction for gasoline - powered equipment and injection
timing retard for diesel - powered equipment;
• General contractors shall maintain and operate
construction equipment so as to minimize exhaust
emissions. During construction, trucks and vehicles in
loading and unloading queues should turn their engines
off when not in use to reduce vehicle emissions; and
Page ES -18
City of Chula Vista
Mav 2009
Executive Summary
Table ES -1
Summary of Environmental Impacts and Mitigation Measures
_ Impact
Mitigation Measures
Significance after
Mitigation
• Electricity from power poles rather than temporary diesel -
or gasoline- powered generators shall be used to the
extent feasible.
Threshold 3: Result in a cumulatively considerable
net increase of any criteria pollutant for which the
project region is non - attainment under an applicable
federal or state ambient air quality standard.
Protect emissions would exceed thresholds for PM10,
No mitigation measures are available to reduce cumulative
Significant and unavoidable:
PM2,5, and, as the San Diego Air Basin (SDAB) is
emissions during project operation.
No feasible mitigation exists
currently classified as non - attainment for these
to reduce VOC, NO,, CO,
emissions, emission levels would be significant.
PMio and PM2,5 to less than
threshold levels during
operation.
Threshold 4: Expose sensitive receptors to
substantial pollutant concentrations.
Temporary fugitive dust emissions during mass
Mitigation Measure 4.4 -1, above, shall be implemented to reduce
Significant and
grading would exceed the significance threshold.
dust emissions and other particulates during construction.
Unavoidable: No mitigation
Impacts related to localized mobile - source CO and
Mitigation Measure 4,4 -2'
measures are available that
would reduce temporary
Toxic Air Contaminants (TAC) emissions during
Prior to approval of the building permit for any uses which are
fugitive dust during
construction and operation would be less than
regulated for TAC emissions by the SDAPCD, the Applicant must
construction, to less than
significant. However, to ensure compliance with
demonstrate to the satisfaction of the Director of Planning and
significant levels.
established TAC thresholds, a mitigation measure is
Building that the use complies with established criteria (such as
recommended.
those established by SDAPCD Rule 1200).
Project traffic can contribute to microscale carbon
monoxide "hot spots;" however, project- generated
traffic would have a negligible effect on proiected 1-
hour and 8 hour CO concentrations at respective
Eastern Urban Center Sectional Planning Area EIR
City of Chula Vista
State Clearinghouse No. 2007041074
Mav 2009
Page ES -19
Executive Summary
Summary of Environmental Impacts and Mitigation Measures
Significance after
Impact Mitigation Measures Mitigation
intersection locations. The proposed project would
not cause any new or exacerbate any existing CO
hotspots. Thus, impacts related to localized mobile -
source CO emissions would be less than significant.
Toxic Air Contaminants (TAC) emissions related to
diesel particulate emissions during construction
would be temporary by nature and would not result in
significant impacts with respect to long -term
"Individual Cancer Risk." Therefore, project - related
toxic emission impacts during construction would be
less than significant. As the proposed development
is predominantly residential and commercial, it is not
expected to introduce new substantial stationary
sources of TAC emissions during operation.
The project may expose new residential and other
sensitive - receptor uses to off -site (non - project) TACs
associated with mobile sources (traffic on SR 125).
The project's health risk assessment (HRA), based
on a 9 -year exposure duration, estimated that the
cancer incidence risk associated with siting
residential uses in the vicinity of the highway would
be below 10 in one million, and, when added to the
overall background risk from regional emissions,
would result in total risk within or near the range of
existing background risk in the area.
With regard to the future school site, an HRA to
address a potential future elementary school will be
performed under future separate environmental
Eastern Urban Center sectional Planning Area EIR
State Clearinghouse No. 2007041074
Mitigation Measure 4.4-3:
Prior to design review approval for any development that includes
sensitive uses within 500 feet of the centerline of SR -125, such as
residential, schools, day care facilities and parks, the Applicant
shall demonstrate to the satisfaction of the Director of
Development Services consistency with any city, State or federal
standard, regarding airborne cancer risks from mobile emissions
from the highway, in place at the time. The Applicant may use
data from the health risk assessment conducted for this EiR to
determine compliance with a new standard. If inconsistent with
the standards, site - specific design measures shall be
implemented, to the satisfaction of the Director of Development
Services, to reduce the potential impact to meet the adopted
standards.
Page ES -20
City of Chula Vista
May 2009
Executive Summary
Table ES -1
Summary of Environmental Impacts and Mitigation Measures
Significance after
Impact
Mitigation Measures
Mitigation
review by the school district. However, the general
location of the proposed school site in the south -
central portion of the project site is consistent with
CARB's siting recommendations regarding
compatible adjacent and nearby land -uses.
Threshold 5: Create objectionable odors affecting a
substantial number of people.
Odor impacts associated with construction materials,
As no significant impacts have been identified, no mitigation
Less than significant
uses, and the off -site Otay Landfill would be less than
measures are required.
significant_
Noise:
Thresholds 1 and 4: Result in a substantial
temporary or periodic increase in ambient noise
levels in the project vicinity above levels existing
without the project: Expose persons to or generation
of excessive aroundborne vibration or groundborne
noise levels.
Potential sources of noise related to the proposed
Mitigation Measure 4.5-1:
Less than significant with
project include temporary construction noise, traffic
mitigation
generated noise, noise from on -site land uses,
Prior to approval of any grading permit, the following measures
including the elementary school, parks, and noise
shall be placed as notes on all grading plans, and shall be
from commercial uses.
implemented during grading of each phase of the project to
Future on- or off -site sensitive receptors within 250
minimize construction noise impacts:
feet on- (with the project site) or off -site (SSA, SCSL
Improvement, or PCSI) grading activities or
a) Grading and exterior construction activities within 250
construction could experience short term nuisance
feet of noise sensitive uses shall be prohibited Monday
noise levels during such activities. However,
through Friday from 10:00 P.M. t0 7:00 A.M., and from
10:00 P.M. tO $:00 A.M. on Saturdays and Sundays,
Summary of Environmental Impacts and Mitigation Measures
Impact
compliance with the City's Municipal code would
reduce this impact to below a level of significance.
Exposure to ground -borne vibration would be less
than significant.
Noise impacts associated with the fire station
emergency generator would be potentially significant.
Thresholds 2 and 3: Expose persons to or
_generation of noise levels in excess of standards
established in the Chula Vista General Plan or noise
ordinance, or applicable standards of other agencies:
and result in a substantial permanent increase in
ambient noise levels in the project vicinity above
levels existing without the project.
Eastern Urban Center Sectional Planning Area EIR
State Cleannghouse No_ 2007041074
Mitigation Measures
in accordance with the City of Chula Vista Municipal
Code Section 97.24.050.J.
b) Noise- generating equipment operated at the project site
shall be equipped with effective noise control devices,
i.e., mufflers, lagging, and /or motor enclosures. All
equipment shall be properly maintained to assure that no
additional noise, due to worn or improperly maintained
parts, would be generated.
c) Construction truck routes and equipment shall, to the
extent feasible, avoid residential areas and roadway_ s
adjacent to noise sensitive receptors.
Mitigation Measure 4.5--4
Concurrent with the first submittal of construction plans for the fire
station, a noise study shall be prepared to ensure that appropriate
noise attenuation measures are implemented capable of reducing
the exterior generator noise at the property lines consistent with
Table III of Chapter 99.68 of the Municipal Code.
Page ES -22
Executive Summary
Significance after
Mitigation
City of Chula Vista
May 2009
Executive Summary
Summary of Environmental Impacts and Mitigation Measures
Significance after
Impact Mitigation Measures Mitigation
An increase of 4.1 and 5.4 dBA CNEL along the
highest traveled roadway segments of Birch Road
would exceed the significance threshold. Project -
related traffic would be below the 3.0 dBA
significance threshold and less than audible.
On -site noise sensitive uses would be exposed to
noise levels that exceed the City's exterior noise
standard of 65 CNEL for residential development and
other noise sensitive uses.
Noise impacts due to on -site stationary sources such
as roof -top HVAC equipment would be significant.
Outdoor noise generated by schools and parks,
Including sports activities, is considered to have
potentially significant impact on adjacent sensitive
uses.
Eastern Urban Center Sectional Planning Area EIR
State Clearinghouse No. 2007049074
Mitigation Measure 4.5--2(a):
Prior to approval of design review permits for residential uses on
lots directly adjacent to a proposed park site or the future EUC
elementary school site, a detailed acoustical analysis report shall
be prepared by a qualified acoustical consultant to ensure that
interior noise levels due to exterior sources will be at or below
45 CNEL. Building plans will be available during design review
and will permit the accurate calculation of building acoustical
evaluation including wall structures sound transmission loss for
habitable rooms. For these lots, it may be necessary for the
windows to be able to remain closed to ensure that Interior noise
levels meet the interior standard of 45 CNEL. Consequently the
design for these units may need to include mechanical ventilation
or air conditioning systems to provide a habitable interior
environment with the windows closed based on the results of the
detailed interior acoustical analysis.
Mitigation Measure 4.5 -2(b):
As part of the review process for final EUC park designs, park site
plans shall be reviewed by the City to ensure that hard -court
areas (basketball, tennis, etc.) and active play fields are located
as far as feasible from existing or proposed residential uses with
outdoor patios or gathering areas_ The goal and performance
standard for this measure is to avoid outdoor noise levels that
exceed 65 CNEL for residential uses that include outdoor patios
or common gathering areas that are located adjacent to park
sites. This measure shall be implemented to the satisfaction of
the City prior to final approval of applicable park site plans.
Page ES -23
Less than significant with
mitigation
City of Chula Vista
May 2009
Executive Summary
Summary of Environmental Impacts and Mitigation Measures
Significance after
Impact Mitigation Measures Mitigation
Mitigation Measure 4.5 -2(c):
Eastern Urban Center Sectional Planning Area EiR
State Clearinghouse No. 2007041074
The City shall consult with the Chula Vista Elementary School
District prior to or during the environmental review process for the
proposed elementary school to recommend that the school site is
planned such that hard -court areas and active play fields are
located as far as feasible from existing or proposed residential
uses with outdoor patios or gathering areas. The goal and
performance standard for this measure is to avoid outdoor noise
levels that exceed 65 CNEL for residential uses with outdoor
patios or common gathering areas that are located adjacent to a
school site.
Mitigation Measure 4.5-3:
Prior to approval of design review permits for commercial and
public buildings, the following shall be implemented:
a) Air conditioning, cooling and ventilating equipment and
any other noise - generating equipment shall be screened,
shielded and /or sound buffered from surrounding streets
and land uses. An acoustical analysis shall be performed
by a qualified acoustical consultant to verify the specific
details of this mitigation measure including; geometrical
dimensions and construction materials.
b) Loading docks and trash collection areas shall properly
be screened or enclosed and shall not be oriented
toward adjacent sensitive uses.
Page ES -24
City of Chula Vista
May 2009
Executive Su
Summary of Environmental Impacts and Mitigation Measures
Significance after
Impact Mitigation Measures Mitigation
Eastern Urban Center Sectional Planning Area EIR
State Cleannghouse No. 2007041074
Mitigation Measure 4.5-5
Prior to approval of design review permits for sensitive uses, such
as residential use, libraries, daycare facilities, neighborhood parks
and playgrounds, planned for areas forecasted to exceed an
exterior noise level of 65 CNEL (based on Table 4.5 -7 of the EIR),
the following shall occur:
a) An acoustical analysis shall be performed for residential
structures to ensure that interior noise levels due to
exterior sources will be at or below 45 CNEL. Outdoor
use areas such as terraces and balconies shall not be
encouraged for residential structures that front major
roadways, such as SR -125, Birch Road, Eastlake
Parkway, and Hunte Parkway. For these residential use
areas, it may be necessary for the windows to be able to
remain closed to ensure that interior noise levels meet
the interior design standard of 45 CNEL. Consequently
the design for these units may need to include
mechanical ventilation or air conditioning systems to
provide a habitable interior environment with the windows
closed based on the results of the interior acoustical
analysis.
b) To reduce exterior noise levels to 65 CNEL or lower at
outdoor sensitive uses (Le_, residential courtyards, parks.
and passive recreation areas), a combination of sound
barrier walls, earthen berms, and landscaping shall be
designed and implemented by a qualified acoustical
consultant. Alternatively, outdoor uses shall be located
behind buildings (not facing traffic corridors) in a manner
that shields outdoor sensitive uses from roadway noise
Page ES -25
City of Chula Vista
May 2009
Summary of Environmental Impacts and Mitigation Measures
Eastern Urban Center Sectional Planning Area EIR
State Clearinghouse No. 2007041074
Executive Summary
Significance after
Mitigation Measures_ Mitigation
and reduces the exterior noise level to 65 CNEL or
below.
Mitigation Measure 4.5-6:
Athletic fields if placed in development areas where noise from
traffic exceeds or is forecasted to exceed 70 dBA CNEL (based
on Table 4.5 -7 of the EIR), shall incorporate the following_
a) Sound barrier walls or earthen berms of sufficient height
and length shall be designed by a qualified acoustical
consultant to reduce exterior noise levels to 70 CNEL or
lower; or
b) Passive recreation areas, such as picnic tables, shall be
located away from the roadway as far as possible_
Mitigation Measure 4.5 -7:
The applicant may, at any time during implementation of the
proposed project, submit a revised noise study prepared by a
qualified acoustical consultant that takes into consideration site
grading based on final grading plans and locations of intervening
structures to establish new noise contours on the site. The noise
study shall be approved by the City, and may be used to
implement the noise mitigation measures of this section.
Page ES -26
City of Chula Vista
May 2009
Executive Summary
Table ES -1
Summary of Environmental Impacts and Mitigation Measures
Significance after
Mitigation Measures Mitigation
Threshold 5: Be inconsistent with General Plan.
GDP or other objectives and policies reaardina
noise thereby resulting in a significant physical
impact.
The project would be consistent with General Plan As no significant impacts have been identified, no mitigation Less than significant
Environmental Element policies that pertain to measures are required.
noise.
Cultural Resources:
Thresholds 1 and 2: Cause a substantial adverse
change in the significance of a historical resource as
defined in CEQA Guidelines Section 15064.5.
a substantial adverse change in the significance of an
archaeological resource as defined in CEQA
Guidelines Section 15064.5.
The proposed project would not result in a significant
impact on known archaeological resources, but could
result in significant impacts to archaeological
resources that may be uncovered during clearing and
grading. (Note: Mitigation Measure 4.6 -3 has been
stricken from this summary table because there is no
Mitigation Measure 4.6 -3.)
Eastern Urban Center Sectional Planning Area EIR
State clearinghouse No. 2007041074
Mitigation Measure 4.6 -1:
Prior to issuance of land development permits, including clearing
or grubbing and grading permits, the applicant shall provide
written confirmation and incorporate Into grading plans, to the
satisfaction of the Environmental Review Coordinator, that a
principal investigator (PI) as listed by the Secretary of the Interior
(36 CFR 61) has been retained in an oversight capacity to ensure
that ._an archaeological monitor( will be present during all cutting
of previously undisturbed soil. If these cutting activities occur in
more than one location, multiple monitors shall be provided to
monitor these areas, as determined necessary by the P_1_
Page ES -27
Less than significant with
mitigation
City of Chula Vista
May 2009
Table ES -1
Summary of Environmental Impacts and Mitigation Measures
Eastern Urban Center Sectional Planning Area EIR
State Clearinghouse No. 2007049074
Executive Summary
Significance after
Mitigation Measures Mitigation
Mitigation Measure 4.6 -2:
During the initial grading of previously undisturbed soils within the
EUC SPA Plan area, limits of grading or site preparation for either
Grading Options 1 or 2, and SCSI- Improvement Area, prehistoric
and historic resources may be encountered. In the event that the
monitor identifies a potentially significant site, the archaeological
monitor shall secure the discovery site from further impacts by
delineating the site with staking and flagging, and by diverting
grading equipment away from the archaeological site. Following
notification to the City, the archaeological monitor shall conduct
investigations as necessary to determine if the discovery is
significant under the criteria listed in CEQA and the environmental
guidelines of the City. If the discovery is determined to be not
significant, grading operations may resume and the
archaeological monitor shall summarize the findings in a letter
report to the City following the completion of mass grading
activities. The letter report shall describe the results of the on -site
archaeological monitoring, each archaeological site observed, the
scope of testing conducted, results of laboratory analysis (if
applicable), and conclusions. The letter report shall be completed
to the satisfaction of the Environmental Review Coordinator prior
to release of grading bonds. Any artifacts recovered during the
evaluation shall be curated at a curation facility approved by the
City.
For those prehistoric /historic resources that are determined to be
significant, alternate means of achieving mitigation shall be
pursued. In general, these forms of mitigation include: 1) site
avoidance by preservation of the site in a natural state in open
Page ES -28
City of Chula Vista
May 2009
Executive Summary
Table ES -1
Summary of Environmental Impacts and Mitigation Measures
Significance after
Impact Mitigation Measures Mitigation
Eastern Urban Center Sectional Planning Area EIR
State Clearinghouse No. 2007041074
space or in open space easements, 2) site avoidance by
preservation through capping the site and placing landscaping on
top of the fill, 3) data recovery through implementation of an
excavation and analysis program, or 4) a combination of one or
more of the above measures. Procedures for implementing the
alternative forms of mitigation described
herein are further detailed in the Mitigation Monitoring and
Reporting Program adopted as part of the Otay Ranch General
Development Program EIR, EIR 90 -01.
For those sites that are found to be significant resources and
for which avoidance and preservation is not feasible or
appropriate, the Applicant shall prepare a Data Recovery Plan.
The plan will, at a minimum, include the following: 1) a
statement of why data recovery is appropriate as a mitigating
measure, 2) a research plan that explicitly provides the
research questions that can reasonably be expected to be
addressed by excavation and analysis of the site, 3) a
statement of the types and kinds of data that can reasonably be
expected to exist at the site and how these data will be used to
answer important research questions, 4) a step -by -step
discussion of field and laboratory methods to be employed, and
5) provisions for curation and storage of the artifacts, notes,
and photographs will be stated. In cases involving historic
resources; however, archival research and historical
documentation shall be used to augment field- testing
programs.
Grading operations within the affected area may resume once the
site has been fully evaluated and mitigated to the satisfaction of
the Environmental Review Coordinator_ All significant artifacts
Page ES -29
City of Chula Vista
May 2009
Executive Summary
Summary of Environmental Impacts and Mitigation Measures
Significance after
Impact Mitigation Measures Mitigation
collected during the implementation of the Data Recovery Plan
shall be curated at a facility approved by the City. (Note: This
Summary Table does not include Mitigation Measure 4.6 -3).
Threshold 3: Directly or Indirectly destroy a unique
paleontological resource or site or unique geologic
feature.
Geological formations underlying the EUC SPA Plan
area and off -site improvement areas have a high
sensitivity for paleontological resources. Therefore,
on -site grading and off -site site preparation with
either grading option as well as off -site excavation
associated with the SCSL Improvement Area have
Eastern Urban Center Sectional Planning Area EIR
State Clearinghouse No. 2007041 074
Mitigation Measure 4.6-4:
Following the completion of mass grading operations, the
Applicant shall prepare a plan that addresses the temporary
onsite presentation and Interpretation of the results of the
archaeological studies for the proposed project. This could be
accomplished through exhibition within a future community
center, civic building and/or multi- purpose building. This
exhibition will only be for temporary suratiendisglay of those
materials being actively used for interpretation and display, and
that permanent curation of artifacts and data will be at a
regional repository that meets the standards of the State
Historical Resource Commission's Guidelines for the Curation
of Archaeological Collections dated May 7. 199
when eRe is-
established.- All significant artifacts collected during the
implementation of the Data Recovery Plan shall be
permanently curated at a facility approved by the City.
Mitigation Measure 4.6 -6:
Prior to the Issuance of grading permits for the EUC SPA Plan
Area, limits of grading for either Grading Options 9 or 2, and
the SCSL Improvement Area, the Applicant shall confirm to the
City that a qualified paleontologist has been retained to carry
Page ES -3a
Less than significant with
mitigation
City of Chula Vista
May 2009
Executive Sum
Summary of Environmental Impacts and Mitigation Measures
Significance after
Impact Mitigation Measures Mitigation
the potential to result in significant Impacts to out an appropriate mitigation program. (A qualified
paleontological resources. No impact to paleontologist is defined as an individual with an M.S. or Ph.D.
paleontological resources is anticipated in the PCSI in paleontology or geology who is familiar with paleontological
Area due to the fact that the site has been previously procedures and techniques). A pre -grade meeting shall be
disturbed by construction of the Poggi Canyon sewer. held among the paleontologist and the grading and excavation
contractors.
Mitigation Measure 4.6 -7:
A paleontological monitor shall be onsite at all times during the
original cutting of previously undisturbed sediments of highly
sensitive geologic formations (Le., San Diego, Otay, and
Sweetwater formations) to inspect cuts for contained fossils. (A
paleontological monitor is defined as an individual who has
experience in the collection and salvage of fossil materials.)
The paleontological monitor shall work under the direction of a
qualified paleontologist. The monitor shall be onsite on at least
a half-time basis during the original cutting of previously
undisturbed sediments of moderately sensitive geologic
formations (i.e., unnamed river terrace deposits and the
Mission Valley Formation) to inspect cuts for contained fossils.
a) The monitor shall be onsite on at least a quarter -time
basis during the original cutting of previously
undisturbed sediments of low sensitivity geologic
formations (Le., Lindavista Formation and Santiago
Peak Volcanics Imetasedimentary portion only) to
inspect cuts for contained fossils. He or she shall
periodically (every several weeks) inspect original cuts
Eastern Urban Center Sectional Planning Area FIR City of Chula Vista
State Clearinghouse No. 2007041074 May 2009
Page ES -31
Executive Summary
Table ES -1
Summary of Environmental Impacts and Mitigation Measures
Significance after
Impact Mitigation Measures Mitigation
in deposits with an unknown resource sensitivity (i.e..
Quaternary alluvium).
b) In the event that fossils are discovered in unknown,
low, or moderately sensitive formations, the Applicant
shall increase the per -day field monitoring time.
Conversely, if fossils are not discovered, the
monitoring, at the discretion of the Planning
Department, shall be reduced. A paleontological
monitor is not needed during grading of rocks with no
resource sensitivity (i.e., Santiago Peak Volcanics,
metavolcanic portion).
Mitigation Measure 4.6 -8:
When fossils are discovered, the paleontologist (or
paleontological monitor) shall recover them. In most cases, this
fossil salvage can be completed in a short period of time.
However, some fossil specimens (such as a complete whale
skeleton) may require an extended salvage time. In these
Instances, the paleontologist (or paleontological monitor) shall
be allowed to temporarily direct, divert, or halt grading to allow
recovery of fossil remains in a timely manner. Because of the
potential for the recovery of small fossil remains such as
isolated mammal teeth, it may be necessary in certain
instances and at the discretion of the paleontological monitor to
set up a screen - washing operation on the site.
Mitigation Measure 4.6 -9:
Prepared fossils along with copies of all pertinent field notes,
photos, and maps shall be deposited in a scientific institution
Eastern Urban Center Sectional Planning Area EIR City of Chula Vista
State Clearinghouse No. 2007041074 May 2009
Page ES -32
Executive Su
Summary of Environmental Impacts and Mitigation Measures
Significance after
Impact Mitigation Measures Mitigation
Threshold 4: Disturb any human remains, including
those interred outside of formal cemeteries.
On -site grading and off -site site preparation with
either grading option as well as off -site construction
associated with the SCSL Improvement Area have
the potential to result in significant impacts to human
remains. No impact to human remains is anticipated
in the PCSI Area due to the fact that the site has
been previously disturbed by construction of the
Poggi Canyon Sewer.
Eastern Urban Center Sectional Planning Area EIR
State Cieannghouse No. 2007041074
with paleontological collections such as the San Diego Natural
History Museum. A final summary report shall be completed.
This report shall include discussions of the methods used,
stratigraphy exposed, fossils collected, and significance of
recovered fossils.
Mitigation Measure 4.6-5: Less than significant with
If human remains are discovered during grading or site mitigation
preparation activities within the EUC SPA Plan area, limits of
grading for either Grading Options 1 or 2 and the SCSL
Improvement Area, the archaeological monitor shall secure the
discovery site from any further disturbance. State Health and
Safety Code Section 7050.5 requires that no further disturbance
shall occur until the San Diego County Coroner has made the
necessary findings as to the origin and disposition of the remains
pursuant to PRC Section 5097.98. If the remains are determined
to be of Native American descent, the coroner has 24 hours to
notify the Native American Heritage Commission (NAHC). The
NAHC will then identify the person(s) thought to be the Most
Likely Descendent (MLD) of the deceased Native American. The
MLD will assist the City in determining what course of action shall
be taken to deal with the remains. Grading operations within the
affected area may resume once the site has been fully evaluated
and mitigated to the satisfaction of the Environmental. Review
Coordinator. The Archaeological Monitor shall summarize the
findings in a letter report to the City following the completion of
mass grading activities.
Page ES -33
City of Chula Vista
May 2009
Table ES -1
Summary of Environmental Impacts and Mitigation Measures
Threshold 5: Be Inconsistent with General Plan
cultural and paleontological policies thereby resulting
in a significant physical impact.
The project and off -site construction sites would be
consistent with the General Plan's cultural resources
policies and would be less than significant with
respect to this threshold.
Biological Resources:
Threshold 1: A substantial adverse effect, either
directly or through habitat modifications, on any
species identified as a candidate, sensitive, or special
status species In local or regional plans policies or
regulations or by the California Department of Fish
and Game or U.S. Wildlife Service.
The project would have the following substantial
adverse effect, both directly and through habitat
modifications, on sensitive wildlife species.
• Ground nesting raptor species, including the
northern harrier and burrowing owl, would be
impacted within the EUC SPA Plan and
SSA.
• The northern harrier, burrowing owl, white -
tailed kite, and San Diego black - tailed
jackrabbit would be impacted by the loss of
159.2 acres of agricultural lands utilized as
foraging habitat.
Eastern Urban Center Sectional Planning Area EIR
State Clearinghouse No. 2007041074
Executive Summary
Significance after
Mitigation Measures Mitigation
As no significant impacts have been identified, no mitigation Less than significant
measures are required.
Mitigation Measure 4.7 -1:
Prior to issuance of any land development permits, including
clearing and grubbing or grading permits for the EUC project site
and the SSA, the applicant shall retain a City- approved biologist
to conduct focused surveys for the northern harrier to determine
the presence or absence of this species within 900 feet of the
construction area, if construction will occur during the breeding
season (January 15 through July 31) (excluding areas west of
SR -125). The pre - construction survey must be conducted within
10 calendar days prior to the start of construction, the results of
which must be submitted to the City for review and approval. If
active nests are detected by the City - approved biologist, a
biological monitor should be on -site during construction to
Page ES -34
Less than significant with
mitigation
City of Chula Vista
may 2009
Impact
Summary of Environmental Impacts and Mitigation Measures
Mitigation Measures
The coastal California gnatcatcher would be minimize construction impacts and ensure that no nests are
temporarily impacted within the SCSL removed or disturbed until all young have fledged.
Improvement Area.
The project may have significant indirect effects on
the MSCP Preserve associated with construction
noise avian breeding seasons, water quality,
introduction of non- native exotic plant species
following construction, and human intrusion.
Modifications associated with the SCSL would
temporary impact 0.16 acre of Diegan coastal sage
scrub.
Eastern Urban Center Sectional Planning Area EIR
State Clearinghouse No. 2007041074
Mitigation Measure 4.7 -2:
Prior to issuance of any land development permits (including
clearing and grubbing or grading permits) for the EUC proiect site
and the SSA. the applicant shall retain a City- approved biologist
to conduct focused pre - construction surveys for burrowing owls.
The surveys shall be performed no earlier than 30 days prior to
the commencement of any clearing, grubbing, or grading
activities. If occupied burrows are detected, the City- approved
biologist shall prepare a passive relocation mitigation plan subiect
to the review and approval by the Wildlife Agencies and City
including any subsequent burrowing owl relocation plans to avoid
impacts from construction- related activities.
Mitigation Measure 4.7-4:
For any work proposed to be initiated between February 15 and
August 15, prior to issuance of any land development permits,
including clearing, grubbing, grading, and construction permits
associated with improvements to the off -site SCSL, a pre -
construction survey for the coastal California gnatcatcher must be
performed in order to reaffirm the presence and extent of
occupied habitat. The pre - construction survey area for the
coastal California gnatcatcher shall encompass all habitat within
the project work zone as well as a 300 -foot buffer extending from
the study area as delineated on Figure 5 of the HELIX biological
technical report.
Page ES -35
Executive Su
Significance after
Mitigation
City of Chula Vista
May 2009
Executive Summary
Summary of Environmental Impacts and Mitigation Measures
Significance after
Impact Mitigation Measures Mitigation
The pre - construction survey must be performed to the satisfaction
of the Environmental Review Coordinator (ERG) by a qualified
biologist familiar with the City's MSCP Subarea Plan. The results
of the pre - construction survey must be submitted in a report to the
ERC for review and approval prior to the issuance of any land
development permits and prior to initiating any construction
activities. If the coastal California gnatcatcher is detected, a
minimum 300 -foot buffer delineated by orange biological fencing
shall be established around the detected species to ensure that
no work shall occur within the occupied habitat from February 15
through August 15 and on -site noise reduction techniques shall
be incorporated, as appropriate. The ERC shall have the
discretion to modify the buffer width depending on site - specific
conditions. if the results of the pre - construction survey determine
that the survey area is unoccupied, the work may commence at
the discretion of the ERC following the review and approval of the
pre - construction report.
Mitigation Measure 4.7 -5:
Prior to issuance of land development permits, including clearing,
grubbing, grading and construction permits for the off -site SCSL
project, the applicant shall provide a revegetation plan for 0.16
acre of Diegan coastal sage scrub to the satisfaction of the City's
Environmental Review Coordinator (ERC). The revegetation plan
must be prepared by a qualified City - approved biologist familiar
with the City's MSCP Subarea Plan and must include, but not be
limited to, an implementation plan; appropriate seed mixtures and
planting method; irrigation method; quantitative and qualitative
success criteria; maintenance, monitoring, and reporting program;
estimated completion time; and contingency measures. The
Eastern Urban Center Sectional Planning Area EIR city of Chula Vista
State Clearinghouse No. 2007041074 May 2009
Page ES -36
Executive Summary
Table ES -1
Summary of Environmental Impacts and Mitigation Measures
Significance after
Impact Mitigation Measures Mitigation
Eastern Urban Center Sectional Planning Area EIR
State Clearinghouse No. 2007041074
applicant shall also be required to implement the revegetation
plan subiect to the oversight and approval of the ERC.
Mitigation Measure 4.7 -6:
Prior to issuance of land development permits, including clearing
or grubbing and grading and /or construction permits for the off -
site SCSL, the applicant shall install fencing in accordance with
CVMC 17.35.030. Prominently colored, well - installed fencing and
signage shall be in place wherever the limits of grading are
adiacent to sensitive vegetation communities or other biological
resources, as identified by the qualified monitoring biologist.
Fencing shall remain In place during all construction activities. All
temporary fencing shall be shown on grading plans for the off -site
SCSL. Prior to release of grading and /or improvement bonds, a
qualified biologist shall provide evidence that work was conducted
as authorized under the approved land development permit and
associated plans.
Mitigation Measure 4.7 -7:
A biological monitor shall attend all pre- construction meetings and
be present during the removal of any vegetation associated with
the modifications to the off -site SCSL. Prior to Issuance of land
development permits, including clearing or grubbing and grading
and /or construction permits for the SCSL proiect, the applicant
shall provided written confirmation that a City - approved biological
monitor has been retained and shall be on -site during clearing,
grubbing, and /or grading activities to ensure that the approved
limits of disturbance are not exceeded and provide penodic
monitoring of the impact area including, but not limited to,
trenches, stockpiles, storage areas, and fencing. The biological
monitor shall also be on -site during the placement and removal of
Page ES -37
City of Chula vista
Mav 2009
Summary of Environmental Impacts and Mitigation Measures
Impact
Threshold 2: A substantial adverse effect on any
riparian habitat or other sensitive natural community
identified in local or regional plans, policies.
regulations or by the California Department of Fish
and Game or U. S. Fish and Wildlife Service.
Careless placement of the temporary high line
facility in the off -site SCSL area could impact
sensitive biological resources. Also, the proposed
lack and bore process in the off -site SCSL area
has the potential to cause "frac- out ". These
impacts would be considered significant.
Eastern Urban Center Sectional Planning Area EIR
State Clearinghouse No. 2007041074
Mitigation Measures
the proposed High Line to ensure that removal or damaging of
native vegetation does not occur. The biological monitor shall be
authorized to halt all associated project activities that may be in
violation of the City's MSCP Subarea Plan.
Mitigation Measure 4.7-8:
Prior to issuance of land development permits, and prior to
construction activities occurring in areas containing sensitive
biological resources within the off -site SCSL, all workers shall be
educated by a City - approved biologist to recognize and avoid
those areas which have been marked as sensitive biological
resources.
Executive Summary
Significance after
Mitigation
See Mitigation Measures 4.7 -7 and 4.7 -8, above. In addition the Less than significant with
following mitigation measure is required: mitigation
Mitigation Measure 4.7 -12:
Prior to issuance of land development permits, including clearing,
grubbing grading and construction permits for the off -site SCSL.
the Applicant shall provide the City with written confirmation to the
satisfaction of the City`s Environmental Review Coordinator that
the resource agencies have been notified of the SCSL grading-
The
__ Applicant shall also be responsible for obtaining all applicable
regulatory permits such as those required under Section 404 of
Page ES -38
City of Chula vista
Mav 2009
Executive Summary
Table ES -1
Summary of Environmental Impacts and Mitigation Measures
Significance after
Impact Mitigation Measures Mitigation
the federal Clean Water Act, Section 1600 of the California
Department of Fish and Game Code, and Porter Cologne Water
Quality Act have been obtained. In addition. P- riarprior to
issuance of any grading permits associated with the off -site
SCSL, the Applicant shall prepare a Frac -Out Contingency Plan
(FCP) shall be prepared to the satisfaction of the City Engineer
and the City's ERC. The FCP shall establish operational
procedures and responsibilities for the prevention, containment,
notification, and clean -up of the inadvertent release of drilling fluid
(frac-out) that could potentially occur with the proposed directional
drilling under Salt Creek. Issues addressed in the plan shall
include but not be limited to:
Eastern Urban Center Sectional Planning Area EIR
State Clearinghouse No. 2007041074
• Spoil stockpile management;
• Hazardous materials storage and spill cleanup;
• Site - specific erosion and sediment control;
• Procedures for timely detection of frac -outs; and
• Any other BMPs to ensure protection of sensitive
biological resources in the adjacent Preserve areas and
minimize water quality impacts as described in the
SWPPP:
If a frac -out event were to occur during the boring and hacking
process, work should cease immediately, and measures should
be taken to contain the frac -out slurry in as small an area as
possible. The biological monitor shall contact the City and
appropriate resource agencies within 24 hours of the frac -out and
provide an initial assessment of impacts to native vegetation.
Page ES -39
City of Chula Vista
May 2009
Table ES -1
Summary of Environmental Impacts and Mitigation Measures
Impact
Threshold 3: A substantial adverse effect on
Federally protected wetlands as defined by Section
404 of the Clean Water Act (including, but not limited
to, marsh, vernal pool, coastal, etc.) through direct
removal, filling, hydrological interruption, or other
means.
No impacts to wetlands would occur within the EUC
SPA Plan, SCSL, or PCSI areas. However,
potentially significant indirect impacts may occur to
the jurisdictional feature downstream of the SSA due
to changes in surface runoff.
Executive Summary
Significance after
Mitigation Measures Mitiigation
Mitigation for the impacts will be coordinated in conjunction with
the City and resource agencies.
See Mitigation Measure 4.7 -12, above. The following mitigation Less than significant with
measures also apply: mitigation
Mitigation Measure 4.7 -9:
Prior to issuance of land development permits, including clearing
or grubbing and grading and/or construction permits for the EUC
project site (including the off -site SSA) or SCSL, the applicant
shall provide written confirmation that Mitigation Measure 4.9.2
(Hydrology and Drainage), requiring a National Pollutant
Discharge Elimination System permit (NPDES) and Storm Water
Pollution Prevention Plan (SWPPP), has been fulfilled to the
satisfaction of the City Engineer.
Mitigation Measure 4.7 -10:
Prior to issuance of land development permits, including clearing
or grubbing and grading and/or construction permits for the off -
site SSA, the Applicant shall install temporary orange biological
fencing along the limits of grading in areas adjacent to sensitive
biological resources to avoid impacts on such resources. All
fencing, including temporary fencing, shall be shown on the
Eastern Urban Center Sectional Planning Area EIR City of Chula Vista
State Clearinghouse No. 2007041074 Mav 2009
Page ES -40
Executive Summary
Eastern Urban Center Sectional Planning Area ElR City of Chula Vista
State Clearinghouse No. 2007041074 May 2009
Page ES -41
Table ES -1
Summary
of Environmental Impacts and Mitigation Measures
Significance after
Impact
Mitigation Measures
Mitigation
Mitigation Monitor shall verify that biological fencing is properly
installed and maintained.
Mitigation Measure 4.7 -11:
To protect the jurisdictional feature downstream of the off -site
SSA, a City - qualified biologist shall attend a pre - construction
meeting prior to initiating grading on the off -site SSA. The
biologist shall be on -site to monitor all vegetation clearing and
periodically thereafter to ensure implementation of appropriate
resource protection measures.
Threshold 4: Interfere substantially with the
movement of any native resident or migratory fish or
wildlife species or with established native resident or
migratory wildlife corridors, or impede the use of
native wildlife nursery sites.
Impacts to the California gnatcatcher could result if
Mitigation Measure 4.7 -13:
Less than significant with
construction activities occur within occupied habitat
To avoid any direct impacts to raptors and /or any migratory birds,
mitigation
during the breeding season for this species (February
removal of habitat that supports active nests on the proposed
15 and August 15). The project would impact nesting
area of disturbance (within the EUC project site, SCSL, or SSA)
bird species protected by the MBTA and California
should occur outside of the breeding season for these species
Fish and Game Code occurring within the EUC SPA
(January 15 to August 31). If removal of habitat on the proposed
Plan, SCSL Improvement Area, and SSA.
area of disturbance (within the EUC project site, SCSL, or SSA)
must occur during the breeding season, the applicant shall retain
a City - approved biologist to conduct a pre - construction survey to
determine the presence or absence of nesting birds on the
proposed area of disturbance. The pre - construction survey must
be conducted within 10 calendar days prior to the start of
construction, the results of which must be submitted to the City for
Eastern Urban Center Sectional Planning Area ElR City of Chula Vista
State Clearinghouse No. 2007041074 May 2009
Page ES -41
Executive Summary
Table ES -1
Summary of Environmental Impacts and Mitigation Measures
Significance after
Impact Mitigation Measures Mitigation
Threshold 5 and 6: Conflict with any local policies or
ordinances protecting biological resources, such as a
tree preservation policy or ordinance; Conflict with the
provisions of an adopted Habitat Conservation Plan,
Natural Community Conservation Plan, or other
approved local, regional, or State habitat
conservation plan.
The proposed protect would have an indirect, long-
term, potentially significant impact related to
biological resources management unless the Otay
Ranch regional open space is preserved
proportionally and concurrently with development.
Agricultural Resources:
Thresholds 1 and 2: Convert _ Prime_ Farmland
Unique Farmland, or Farmland of Statewide
Import ance, as shown on the maps prepared
pursuant to the FMMP of the California Resources
Agency, to nonagricultural use; and /or involves other
changes in the existing environment which, due to
Eastern Urban Center Sectional Planning Area EIR
State Clearinghouse No. 2007041074
review and approval prior to initiating any construction activities.
If nesting birds are detected, a letter report or mitigation plan as
deemed appropriate by the City, shall be prepared and include
proposed measures to be implemented to ensure that
disturbance of breeding activities is avoided. The report or
mitigation plan shall be submitted to the City for review and
approval and implemented to the satisfaction of the City. The
City's Mitigation Monitor shall verify and approve that all
measures identified in the report or mitigation plan are in place
prior to and /or during construction.
Mitigation Measure 4.7-3:
Prior to recordation of each final map, the applicant shall convey
land within the Otay Ranch RMP Preserve at a ratio of 1.188
acres for each acre of development area, as defined in the RMP_
Page ES -42
Less than significant with
mitigation
City of Chula Vista
Mav 2008
Executive Summary
Summary of Environmental Impacts and Mitigation Measures
Significance after
Impact Mitigation Measures. Mitigation
chanaes in the existing environment which. due to
their location or nature, could result in conversion of
farmland to nonagricultural use; Conflict with existing
zonina for aancultural use or a _Williamson Act
contract.
Impacts associated with the permanent removal of
approximately 207 acres of designated Farmland of
Local Importance are considered potentially
significant. The implementation of Grading Option 1,
which would transport and stockpile soils from the
project site to the SSA, would further affect
approximately 59 acres of adjacent Farmland of
Local Importance (remainder of the EUC and a
portion of Village Nine). Grading Option 2, which
would transport and stockpile soils to the remainder
of the EUC including the Hunte Parkway right -of -way
(approximately 28.5 acres) would similarly result in
the loss of Farmland of Local Importance in this area.
In addition, without implementation of the proposed
Agricultural Plan, noise, odors, insects, rodents, and
chemicals associated with interim agricultural
operations on the site could create indirect, short-
term, potentially significant impacts between the
agricultural uses and urban uses. No impacts
regarding the Williamson Act contract lands, or
conflicts with existing zoning for an agricultural use
would occur in the EUC SPA Plan area, the SSA, or
the SCSL Improvement Area and PCSI area —The
construction of the SCSL Improvement and PCSI
Eastern Urban Center Sectional Planning Area EIR
State Clearinghouse No. 2007049074
Mitigation Measure 4.8 »1:
The Agricultural Plan included in the EUC SPA Plan shall be
implemented as development proceeds in the proposed EUC
SPA Plan area. The following measures shall be implemented to
the satisfaction of the City of Chula Vista's Development Services
Director.
• Prior to approval of each building permit, the Applicant
shall ensure that a 200 -foot fenced buffer shall be
maintained between development and ongoing
agricultural operations on the property;
• In those areas where pesticides are to be applied, the
farmland owner shall utilize vegetation to shield adjacent
urban development (within 400 feet) from agriculture
activities.
• If permitted interim agricultural uses require the use of
pesticides, the farmland owner shall notify adjacent
developed property owners of potential pesticide
application a minimum of 10 days prior to application
through advertisements in newspapers of general
circulation. Limits shall be established as to the time of
day and type of pesticide applications that may be used.
Page ES -43
Significant and unavoidable:
Impact on interfacing
agricultural and urban uses
would be reduced to below
significance. However, no
mitigation measures are
available to reduce the
incremental and cumulative
loss of Farmland of Local
Importance to a less than
significance level.
City of Chula Vista
May 2009
Executive Summary
Table ES -1
Summary of Environmental Impacts and Mitigation Measures
Significance after
Impact _ Mitigation Measures Mitigation
would have no impact with respect to agricultural The use of, pesticides shall comply with federal, state,
activities. and local regulations.
Threshold 3: Be inconsistent with General Plan
agricultural resource policies thereby resulting in a
significant physical impact.
As the EUC SPA Plan includes an Agricultural Plan
that addresses the opportunity for limited
agricultural and related uses to occur as an interim
land use within the EUC SPA Plan area. Therefore
the proposed project is consistent with applicable
objectives and policies of the General Plan.
Hydrology and Water Quality:
Threshold 1: Result in an increase in pollutant
discharges to receiving waters (including impaired
water bodies pursuant to the Clean Water Act
Section 303(d) list), result in significant alteration of
receiving water quality during or foilowinci
construction. violate any water quality standards or
waste discharge requirements, or otherwise
substantially degrade water quality.
Project construction would alter the quantity and
composition of surface runoff through grading of
site surfaces, construction of impervious streets,
building development, introduction of urban
pollutants, and irrigation for landscaped areas
which are considered potentially significant impacts
to water quality. Project operation would increase
Eastern Urban Center Sectional Planning Area EIR
State Cleannghouse No. 2007041074
As no significant impacts have been identified, no mitigation Less than significant
measures are required.
Mitigation Measure 4.9 -1: Less than significant with
Prior to issuance of each grading permit for the EUC SPA Plan, mitigation
the SSA, the Salt Creek Sewer Lateral Improvement, and the
Poggi Canyon Sewer Improvement Area or any land
development permit, including clearing and grading, the Project
Applicant(s) shall submit a Notice of Intent (NOI) and obtain
coverage under the National Pollutant Discharge Elimination
Page ES-44
City of Chula Vista
May 2009
Executive Summary
Table ES -1
Summary of Environmental Impacts and Mitigation Measures
Significance after
Impact Mitigation Measures Mitigation
the amount of surface water runoff due to the
introduction of impermeable surfaces and would
increase urban pollutants in surface water runoff.
This is also considered to be a potentially
significant water quality impact. In addition, the
potential presence of DDT in on -site soils is
considered to be a potentially significant impact to
surface water quality.
Eastern Urban Center Sectional Planning Area fEIR
State Cleannghouse No. 2007041074
System (NPDES) permit for Construction Activity from the State
Water Resources Control Board (SWRCB). The permit requires
development of a Storm Water Pollution Prevention Plan
( SWPPP) and Monitoring Plan that shall be submitted to the City
Engineer and the Director of Public Works. The SWPPP shall be
incorporated into the grading and drainage plans and shall
provide for implementation of construction and post - construction
Best Management Practices (BMPs) on site to reduce the amount
of sediments and pollutants in construction and post - construction
surface runoff before it is discharged into off -site storm water
facilities. The BMPs shall include measures to mitigate potentially
significant indirect impacts to the jurisdictional feature
approximately 300 feet downstream of the off -site Soils
Stockpiling Area. The grading plans shall note the condition
requiring a SWPPP and Monitoring Plans.
Mitigation Measure 4.9 -2:
Prior to issuance of each grading permit, a detailed drainage
system design study shall be prepared in accordance with the
City of Chula Vista's standards and shall be reviewed and
approved by the City Engineer.
Mitigation Measure 4.":
Permanent treatment controls BMPs shall be included as part of
the proposed project in accordance with Section 2c of the City of
Chula Vista SUSMP, the City of Chula Vista Development Storm
Water Manual, 200B, and the final Water Quality Technical
Report for McMillin Eastern Urban Center (WQTR) to the
satisfaction of the City Engineer.
Page ES-45
City of Chula Vista
May 2009
Table ESA
Summary of Environmental Impacts and Mitigation Measures
Eastern Urban Center Sectional Planning Area EIR
State Clearinghouse No. 2007041074
Executive Summa
Significance after
Mitigation Measures Mitigation
Mitigation Measure 4.9-4:
As development plans for individual parcels are prepared, parcel
owners shall choose from the on -site storm water management
measures included in the menu in Appendix I of the final Water
Quality Technical Report for McMillin Eastern Urban Center
(WQTR) and submit a supplemental report to the WQTR to verify
sizing to the satisfaction of the City Engineer. If an option other
than what is shown on the menu is chosen by the parcel owner. a
proiect- specific WQTR shall be prepared for each parcel,
referencing the final WQTR for information relevant to regional
design concepts (e.g., downstream conditions of concern) to the
satisfaction of the City Engineer.
Mitigation Measure 4.9 -5:
Upon development, each land use shall be divided into Drainage
Management Areas (DMA). This will include not only streets
within the parcel, but also buildings, parking lots or structures, and
other areas. As each DMA would generally drain to an IMP, the
specific design of these features, including their proximity to
structures and how runoff would be collected and discharged
from them, shall be subject to approval by the Geotechnical
Engineer for the proposed project. This shall be evaluated on a
lot by lot basis after rough grading is completed and prior to
constructing any improvements or structures. All development
within the proposed proiect shall be subject to the City of Chula
Vista's SUSMP at the time of grading permit issuance.
Page ES-46
City of Chula vista
May 2009
Executive Summary
Summary of Environmental Impacts and Mitigation Measures
Significance after
Impact Mitigation Measures Mitigation
Mitigation Measure 4.9 -6:
Should Grading Option 2 be implemented, the Interim condition
above ground detention basin in the southern drainage shall be
reassessed and approved by the City Engineer when the pads
within the triangular wedge are developed in order to detain for
the ultimate condition.
Mitigation Measure 4.9 -7:
In the preparation of all site plans, the Applicant(s) shall
implement Low Impact Development Best Management Practices
(LID BMPs), unless underground treatment and detention
facilities such as sand filters. underground storage and infiltration
facilities, etc., are proposed. The Applicant(s) shall monitor and
mitigate any erosion in downstream locations that may occur as a
result of on -site development.
Mitigation Measure 4.9-8:
The Applicant(s) shall comply with the City of Chula Vista
Development Storrs Water Manual Limitation of Grading
requirements, which limit disturbed soil area to 100 acres, unless
expansion of a disturbed area is specifically approved by the
Director of Public Works. With any phasing resulting from this
limitation, if required, the Applicant shall provide erosion and
sediment control BMPs in areas that may not be completed,
before grading of additional area begins.
Mitigation Measure 4.9 -9:
As a result of the NPDES Municipal Permit, Order No. R9 -2007-
0001, and phasing of the EUC SPA Plan development, the
Eastern urban Center Sectional Planning Area EIR City of Chula Vista
State Cleannghouse No. 2007041074 May 2009
Page ES-47
Executive S
Summary of Environmental Impacts and Mitigation Measures
Significance after
act Mitigation Measures Mitigation
Threshold 2: Substantially deplete croundwater
supplies or interfere substantially with groundwater
recharge such that there would be a net deficit in
aquifer volume or a lowering of the local groundwater
table level (e.g., the production rate of pre- existing
nearby wells would drop to a level which would not
support existing land uses or planned uses for which
permits have been granted).
Eastern Urban Center Sectional Planning Area EIR
State Cleannghouse No. 2007049074
Applicant(s) shall comply with the City's Interim Hydromodification
Criteria or Hydrograph Modification Management Plan, as
applicable, addressed regionally at the EUC SPA Plan level
concurrent with Grading and Improvement Plans for major
streets.
Mitigation Measure 4.9 -10:
Prior to the issuance of any building permit resulting In an
increase in permanent impermeable area, each Applicant wanting
to develop within the EUC SPA Plan is required to develop and
implement post - construction SUSMP and BMPs in accordance
with the most recent regulations at the time of Grading or Building
Permit issuance. In particular, Applicants are required to comply
with the requirements of the NPDES Municipal Permit, Order No.
R9- 2007 -0001, and the City of Chula Vista Development Storm
Water Manual dated January 2008, or any re- issuances thereof.
Specifically, Applicants shall incorporate in the proposed project
design structural on -site design features to address Site Design
and Treatment Control (BMPs) as well as LID and HMP
requirements. Any of said requirements may be waived if the
applicant demonstrates, to the satisfaction of the City Engineer,
that regional facilities exist to address such requirements.
Page ES-48
City of Chula Vista
May 2009
Summary of Environmental Impacts and Mitigation Measures
Impact
While grading at the proposed EUC SPA Plan could
result in shifts in the direction of groundwater flow on
a micro - scale, the overall flow of groundwater would
not change. The principal aquifer, Otay River would
ultimately receive the additional runoff to replenish
groundwater in addition to the existing basin
discharge. Therefore, no significant impacts to
groundwater supply /quantity. would occur. Filtering
would occur during percolation and the groundwater
quality is currently poor: however, development of the
project could result in increased exposure to urban
pollutants that could affect groundwater quality. This
is considered a potentially significant impact. In
addition, the potential presence of DDT in on -site
soils is considered to be a potentially significant
impact to groundwater quality.
Threshold 3: Substantially alter the existing drainage
pattern of the site or area, including through the
alteration of the course of a stream or river, in a
manner, which would result in substantial erosion or
siltation on- or off -site. or City of Chula Vista
Engineerina Standards for storm water flows and
volumes.
The project, which would involve the replacement
of the permeable surfaces and exposed soils,
would substantially change the amount of
impervious surface area on the project site. Site -
generated surface water runoff would be directed
from the project site to off -site drainage facilities.
Nonetheless, with the project site entirely
Eastern Urban Center Sectional Planning Area EIR
State Cleannghouse No. 2007041074
Mitigation Measures
See Mitigation Measures 4.9 -2 through 4.9-4, above.
See Mitigation Measures 4.9 -5 through 4.9 -7, above.
Page ES-49
Executive Summary
Significance after
Mitigation
Less than significant with
mitigation
Less than significant with
mitigation.
City of Chula Vista
May 2009
Executive Summary
Summary of Environmental Impacts and Mitigation Measures
Eastern Urban Center Sectional Planning Area EIR
State Cleannghouse No. 2007041074
Page ES -50
City of Chula Vista
May 2009
Significance after
Impact Mitigation Measures
Mitigation
developed, paved, or landscaped, stormwater
runoff could result in substantial off -site erosion to
downstream facilities or flooding. These are
considered to be potentially significant impacts. As
implementation of the proposed project would
result in the project site being converted to urban
uses with minimal exposed soils areas that could
be subject to erosion, on -site erosion impacts are
considered to be less- than - significant.
Threshold 4: Substantially alter the existing drainage
pattern of the site or area, including through the
alteration of the course of a stream or river, or
substantially increase the rate or amount of surface
runoff in a manner which would result in flooding on-
or off -site, or place structures within a 100 -year flood
hazard area as mapped on federal Flood Hazard
Boundary or Flood Insurance Rate Map or other flood
hazard delineation map which would impede or
redirect flood flows.
The proposed proiect. which would involve the See Mitigation Measure 4.9 -4, above.
Less than significant with
replacement of the permeable surfaces and
mitigation
exposed soils, would substantially change the
amount of impervious surface area on the project
site. Site - generated surface water runoff would be
directed from the proiect site to off -site drainage
facilities. With the site entirely developed, paved,
or landscaped, a substantial increase in the rate or
amount of water surface runoff could occur,
resulting in flooding on- or off -site. This is
considered to be a potentially significant impact.
Eastern Urban Center Sectional Planning Area EIR
State Cleannghouse No. 2007041074
Page ES -50
City of Chula Vista
May 2009
Table ES -1
Summary of Environmental Impacts and Mitigation Measures
Imnact
Even though the prolect includes features to
reduce the amount and rate of runoff, features are
also prescribed as mitigation measures to assure
implementation and facilitate monitoring through
buildout of the proiect. As the off -site
improvements do not involve development of
habitable structures or other permanent
impermeable surfaces that would cause a
permanent increase in surface water runoff or off-
site flooding, no significant impacts would be
associated with the improvements under this
threshold.
Threshold 5: Create or contribute runoff water,
which would exceed the capacity of existing or
Planned stormwater drainage systems or provide
substantial additional sources of polluted runoff.
See Threshold 1, above, regarding water quality
impacts. See Threshold 3, above, regarding
decreased permeability. Regarding stormwater
runoff, runoff would be directed from the project
site to off -site drainage facilities. While the existing
drainage facilities serving the northern and central
drainage basins would accommodate the
stormwater, the existing downstream facilities
serving the southern basin would not. Thus,
impacts to the storm water system serving the
southern drainage basin are considered to be
potentially significant. Even though the proiect
proposes drainage facilities for the southern basin,
a mitigation measure is included to address this
Eastern Urban Center Sectional Planning Area EIR
State Clearinghouse No. 2007041074
Page ES -51
Executive Su
Significance after
ation Measures _ Mitigation
City of Chula Vista
May 2009
Summary of Environmental Impacts and Mitigation Measures
1 m pact
potential impact to ensure implementation and
facilitate monitoring through buildout of the project.
Threshold 6: Be inconsistent with General Plan
GDP or other obiectives and policies regarding
water quality thereby resulting in a significant
physical impact.
The project would be consistent with the General
Plan's Environmental Element policies that pertain
to protection of water quality.
Geology and Soils:
Threshold 1: Expose people or structures to potential
substantial adverse effects, . including the risk of loss
iniurv. or death involving rupture of a known
earthquake fault, strong seismic ground shaking .
seismic- related ground failure, including liquefaction
and /or landslides.
Due to the presence of potential liquefiable soils in
the EUC SPA Plan area and SCSL Improvement
Area, seismic-related impacts regarding unstable
soils are considered to be potentially significant.
Also, grading activities associated with either of the
two grading options in combination with future
irrigation and changes in drainage could result in
potentially significant slope instabilities or landslides
within the EUC SPA Plan area. The exposure of
people and structures to severe ground shaking
generated from potential earthquakes along active
faults in the region would be less than significant
Eastern Urban Center sectional Planning Area EIR
State Cleannghouse No. 2007041074
Executive Summary
Significance after
Mitigation Measures Mitigation
As no significant impacts have been identified, no mitigation Less than significant
measures are required.
Mitigation Measure 4.10 -1:
Prior to the issuance of each grading permit within the EUC SPA
Plan area, the Applicant shall verify that the applicable
recommendations in the Geotechnical Investigation prepared by
Geotechnics incorporated, dated March 1, 2007, and the
Updated Seismic Design Parameters report prepared by
Geotechnics Incorporated, dated December 15, 2008 for the
Eastern Urban Center have been incorporated into the project
design and construction documents to the satisfaction of the City
Engineer of the City of Chula Vista.
Page ES -52
Less than significant with
mitigation
City of Chula Vista
Mav 2009
Executive Summary
Summary of Environmental Impacts and Mitigation Measures
Significance after
Impact _ Mitigation Measures Mitigation
since future development projects would be
constructed in accordance with the City's Grading
Ordinance current seismic design specifications,
current UBC standards and other regulatory
requirements.
Threshold 2: Result in substantial soil erosion or the
loss of topsoil.
Compliance with applicable regulatory
requirements and the recommendations contained
within applicable geotechnical reports would
ensure that erosion and loss of topsoil would be
less than significant during construction activities.
However, heavy seepage and deep saturation
Eastern Urban Center Sectional Planning Area EIR
State Clearinghouse No. 2007041074
Mitigation Measure 4.10 -2:
Prior to the approval of grading permits for placement of soils
within the off -site SSA, the Applicant shall ensure that the
applicable recommendations in the Geotechnical
Recommendation for Proposed Import Soils Second Revision,
Otay Ranch Parcel "C'; dated July 10, 2007, and the Preliminary
Geotechnical Investigation Parcel "C" Portion of Otay Ranch,
dated August 30, 2006, both prepared by Pacific Soils
Engineering, Inc., have been incorporated into the grading plans
to the satisfaction of the City Engineer of the City of Chula Vista.
Mitigation Measure 4.10 -3:
Prior to issuance of the grading permit for the SCSL
Improvement, the City shall ensure that the applicable
recommendations in the Geotechnical Investigation for the
Proposed Salt Creek Gravity Server Interceptor Project, Leighton
& Associates, dated October 2000, have been incorporated into
the project to the satistaction of the City Engineer of the City of
Chula Vista.
See Mitigation Measures 4.10 -1 through 4.10 -3, above.
Page ES -53
Less than significant with
mitigation
City of Chula Vista
May 2009
Summary of Environmental Impacts and Mitigation Measures
Impact
resulting in surficial slope failures, soil erosion,
and /or loss of topsoil is considered potentially
significant.
Threshold 3: Be located on a geologic unit or soil that
Is unstable, or that would become unstable as a
result of the project, and potentially result in on- or
off -site landslide, lateral spreading, subsidence,
liquefaction or collapse.
The presence of loose compressible materials on the
project site, Including residuum, colluvium, alluvium
and the surface of the fill slope in the southeast
portion of the site, could become unstable as a result
of the proposed project. As a result, the potential for
land sliding, lateral spreading, liquefaction and/or
collapse is considered to be potentially significant.
Threshold 4: Be located on expansive soil, as defined
In Table 18 -1 -B of the Uniform Building Code (1994).
creatincl substantial risks to life or property.
The predominately clayey sand and sandy clay
materials within the Otay Formation, as well as the
colluvium, alluvium, and residuum, have a moderate
to high expansion potential. Development of
structures on these soils could create substantial
risks to life or property. This Is considered a
potentially significant impact.
Eastern Urban Center Sectional Planning Area EIR
State Cleannghouse No. 2007041074
Executive Summary
Significance after
Mitigation Measures Mitigation
See Mitigation Measures 4.10-1 through 4.10 -3, above. Less than significant with
mitigation
See Mitigation Measures 4.10 -1 through 4.10 -3, above. Less than significant with
mitigation
Page ES -54
City of Chula Vista
Mav 2009
Executive Summary
Table ES -1
Summary of Environmental Impacts and Mitigation Measures
Significance after
Impact
Mitigation Measures
Mitigation
Threshold 5: Be inconsistent with General Plan
geotechnical policies thereby resulting in a significant
physical impact.
The proposed project would be consistent with the
As no significant impacts have been identified, no mitigation
Less than significant
General Plan policies that pertain to geology and
measures are required.
soils.
Fire Services:
Threshold 1: Result in a substantial adverse phvsical
impact associated with the provision of new or
physically altered governmental facilities, need for
new or physically altered governmental facilities the
construction of which could cause significant
environmental impacts, in order to maintain
acceptable service ratios, response times, or other
performance objectives for fire protection and
emergency services.
The analysis of the EUC SPA Plan's construction
See construction mitigation measures under Air Quality; Noise;
See construction
impacts assumes the development of the proposed
Cultural Resources; Biological Resources; Hydrology and Water
significance levels under
fire station. Construction impacts are analyzed in
Quality; and Geology and Soils, above.
respective Air Quality,
Sections 4.4, Air Quality; 4.5, Noise; 4.6. Cultural
Noise, Cultural Resources,
Resources; 4.7; Biological Resources; 4.9, Hydrology
Cultural Resources,
and Water Quality; and 4.10, Geology and Soils of
Biological Resources,
the E1R.
Hydrology and Water
Quality, and Soils and
Geology sections, above.
Eastern Urban Center Sectional Planning Area EIR
City of Chula Vista
State Cleannghouse No. 2007041074
May 2009
Page ES -55
Executive Su
Summary of Environmental Impacts and Mitigation Measures
Mitigation Measure 4.11.1 -3:
Prior the approval of each building permit and to the satisfaction
of the City of Chula Vista Fire Marshall, the proposed proiect shall
meet the provisions of the City's adopted California Fire Code. In
meeting said provisions, the project shall also meet the minimum
fire flow requirements based upon construction type and square
footage.
Mitigation Measure 4.11.1-4:
The applicant shall deliver a site for a future fire station in
accordance with the triggers /phasing prescribed in the PFFP:
Significance after
Impact
Mitigation Measures
Mitigation
Threshold 2: Reduce the ability of properly eauiooed
and staffed fire and medical units to respond to calls
throughout the City within seven minutes in 80
percent of the cases.
The anticipated increase in residential population
Mitigation Measure 4.11.1 -1:
Less than significant with
of 7,696 people and the employment base of 3.4
mitigation
million square feet of non - residential development
Prior to the approval of each building permit, the Applicant shall
would increase demand on fire and emergency
pay Public Facilities Development Improvement Fees (PFDIF) in
medical services. The increase in demand would
accordance with the fees in effect at the time of building permit
be significant if a fully operational and
issuance and phasing approved in the PFFP_
appropriately equipped and staffed fire station is
not provided commensurate with the demand on
Mitigation Measure 4.11.1 -2:
fire and emergency medical services. Fire flow
requirements for individual projects within the EUC
In order to determine the SPA Plan's increased demand on fire
could be significant depending upon the ultimate
services and potential to exceed GMOC standards, the City of
building height and structure type.
Chula Vista shall continue to monitor the Chula Vista Fire
Department responses to emergency fire and medical calls and
report the results to the GMOC on an annual basis.
Mitigation Measure 4.11.1 -3:
Prior the approval of each building permit and to the satisfaction
of the City of Chula Vista Fire Marshall, the proposed proiect shall
meet the provisions of the City's adopted California Fire Code. In
meeting said provisions, the project shall also meet the minimum
fire flow requirements based upon construction type and square
footage.
Mitigation Measure 4.11.1-4:
The applicant shall deliver a site for a future fire station in
accordance with the triggers /phasing prescribed in the PFFP:
Executive Summary
Summary of Environmental Impacts and Mitigation Measures
Significance after
act Mitigation Measures T_ Mitigation
Mitigation Measure 4.1'1.1 -5:
Subject to approval of the City Council, in lieu of paying the
required impact fee, the Applicant may satisfy that requirement
through a written agreement by which the Applicant agrees to
either pay the fee or build the facility in question, pursuant to the
terms of the agreement.
Threshold 3: Be inconsistent with General Plan.
GDP, and other objectives and policies regarding fire
protection and emergency medical services thereby
resulting in a significant physical impact.
The EUC SPA Plan would be consistent with General No significant impacts have been identified, and no mitigation Less than significant
Plan and GDP obiectives and policies that pertain to measures are required.
fire services and emergency medical services.
Police Services:
Threshold 1: Result in substantial adverse physical
impacts associated with the provision of new or
phvsically altered governmental facilities, need for
new or physically altered governmental facilities, the
construction of which could cause significant
_environmental impacts, in order to maintain
acceptable service ratios, response times, or other
performance obiectives for police protection services.
Eastern Urban Center Sectional Planning Area EIR
State CEearinghouse No. 2007041074
Page ES -57
City of Chula Vista
May 2009
Table ES -1
Summary of Environmental Impacts and Mitigation Measures
Impact
Future growth associated with the proposed EUC
SPA Plan is anticipated in the General Plan and
would not require the construction of new or
expanded police facilities. Existing physical
facilities are adequate to handle police protection
for the proposed project.
Threshold 2: Exceed the threshold standard to
respond to 81 Percent of Prioritv I emergency calls
throughout the city within seven minutes and
maintain an averse response time to all Priority I
calls of 5 minutes and 30 seconds or less: Exceed
the threshold standard to respond to 57 percent of
Priority It urgent calls throughout the city within seven
minutes and maintain an average response time to
alI Priority 11 calls of 7 minutes and 30 seconds or
less.
The CVPD currently does not meet GMOC
thresholds for responses to Priority it calls. The
proposed EUC SPA Plan would increase demand
on police protection, which could increase response
times if additional police officers are not provided
commensurate with demand. This is considered a
significant impact prior to mitigation.
castem uroan center Sectional Planning Area EIR
State Clearinghouse No. 2007041074
Executive Summary
Significance after
Mitigation Measures _ Mitigation
No significant impacts have been identified, and no mitigation Less than significant with
measures are required. mitigation.
Mitigation Measure 4.11.2 -1:
Prior to the issuance of each building permit for any residential
dwelling units, the Applicant(s) shall pay Public Facilities
Development Impact Fees (PFDIF) in accordance with the fees in
effect at the time of building permit issuance and phasing
approved in the PFFP, unless stated otherwise in a separate
development agreement.
Mitigation Measure 4.11.2 -2:
The City of Chula Vista shall continue to monitor the CVPD
responses to emergency calls and report the results to the GMOC
on an annual basis.
Page ES -58
Less than significant with
mitigation
City of Chula Vista
May 2008
Table ES -1
Summary of Environmental Impacts and Mitigation Measures
Impact Mitigation Measures
Mitigation Measure 4.11.2 -3:
Threshold 3: Be inconsistent with General Plan.
GDP or other obiectives and policies regarding police
Protection thereby resulting in a significant physical
impact.
The EUC SPA Plan would be consistent with the
General Plan policies that pertain to police services.
School Services:
Threshold 1: Result in substantial adverse physical
impacts associated with the provision of new or
physically altered governmental facilities, need for
new or physically altered governmental facilities, the
construction of which could cause significant
environmental impacts, in order to maintain
acceptable service ratios, response times or other
performance objectives for educational facilities
services.
Proiect implementation would result in a significant
impact to elementary schools unless construction
of an elementary school coincides with student
generation and associated service demands.
Prior to approval of each design review permit, site plans shall be
reviewed by the CVPD to ensure the incorporation of CPTED
features and other recommendations of the CVPD, including, but
not limited to, controlled access points to parking lots and
buildings; maximizing the visibility along building fronts,
sidewalks, paesos, and public parks: and providing adequate
street, parking lot, and parking structure visibility and lighting.
Executive Summary
Significance after
Mitigation
As no significant impacts have been identified, no mitigation Less than significant
measures are required.
Mitigation Measure 4.11.3 -1: Less than significant with
mitigation
Prior to the issuance of each building permit, the Applicant(s)
shall provide the City with evidence or certification by the CVESD
Eastern Urban Center Sectional Planning Area EI12 City of Chula Vista
State Clearinghouse No. 2007041074 May 2009
Page ES -59
Executive Summary
Summary of Environmental Impacts and Mitigation Measures
Significance after
Impact Mitigation Measures T� Mitigation
Provision of school facilities is the responsibility of that any fee charge, dedication, or other requirement levied by the
the school district when additional demand school district has been complied with or that the district has
warrants. determined the fee, charge, dedication or other requirements
does not apply to the construction.
Mitigation Measure 4.11-3-2:
Prior to approval of a final map for private development on lots 26
or 27 of the Tentative Map, the Applicant shall provide evidence
from the CVESD that the site has not been determined by the
district to be needed for use as a school site.
Threshold 2: The proposed SPA Plan proiect locates See Geology and Soils and Hazards and Risk of Upset, above Less than significant with
schools: (Mitigation Measures 4.10 -1 and 4.12 -9, respectively). mitigation
1. In areas where disturbing factors such as
traffic hazards, airports, or other Incompatible
land uses are present:
2. In areas where they are not integrated into the
system of altemative transportation corridors,
such as bike lanes, riding and hiking trails,
and mass transit:
3. Where private elementary and secondary
schools are not spaced far enough from
public schools and each other to prevent a
concentration of school impacts:
4. Without at least 10 usable acres for an
elementary school}
Eastern Urban Center Sectional Planning Area EIR City of Chula Vista
State Cleannghouse No. 2007049074 May 2009
Page ES -60
Table ES -1
Summary of Environmental Impacts and Mitigation Measures
Impact
5. Without a central location to residential
development;
6. Adjacent to a street or road which cannot
safely accommodate bike. foot, and
vehicular traffic:
7. In areas not adiacent to parks thereby
discouraging joint field and recreation facility
uses;
B. At an unsafe distance from contaminants or
toxins in the soil or groundwater from
landfills, fuel tanks, agricultural areas power
lines. utility easements, and so on,
9. Inside of floodplains; on unstable soils; or near
fault lines:
The potential exists for OCPs, methane, or other
organic gases at the future school site to exceed
CVESD and State standards and for potential
unstable soils to occur on -site. These issues are
addressed in Sections 4.10. Geology and Soils and
4.12, Hazards and Risk of Upset.
Threshold 3: Be inconsistent with General Plan
GDP or other ob ectives and policies regarding
school facilities thereby resulting in a_ significant
physical impact:
The proposed EUC SPA Plan would be consistent
with the Chula Vista General Plan objectives and
Eastern Urban Center Sectional Planning Area E1R
State Clearinghouse No. 2007041074
Executive Summary
Significance after
Mitigation Measures _ _ Mitigation
See Mitigation Measures 4.11.3 -1 and 4.11.3 -2, above. Less than significant with
mitigation
Page ES -61
City of Chula Vista
May 2009
Executive Summary
Summary of Environmental Impacts and Mitigation Measures
Significance after
impact Mitigation Measures Mitigation
policies pertaining to schools primarily because the
Applicant has been working with the school district to
obtain the preferred site and vision for the elementary
school. In addition, the PFFP will identify the school
requirements for the EUC and will identify measures
to ensure the site is delivered when needed by the
district. The proposed project would be consistent
with the GDP's description of the EUC because an
elementary school is being provided.
Library Services:
Threshold 3: Result in a substantial adverse physical
impact associated with the provision of new or
physically altered governmental facilities need for
new or phvsically altered governmental facilities the
construction of which could cause significant
environmental impacts, in order to maintain
acceptable service ratios, response times or other
Performance objectives for library services.
The analysis of the EUC SPA Plan's construction
impacts assumes the development of a library.
Construction impacts are analyzed in Sections 4.4,
Air Quality; 4.5, Noise; 4.6, Cultural Resources; 4.7;
Biological Resources; 4.9, Hydrology and Water
Quality; and 4.10, Geology and Solis of the EIR.
Eastern Urban Center Sectional Planning Area EIR
State Clearinghouse No. 2007041074
See construction mitigation measures under Air Quality; Noise;
See construction
Cultural Resources; Biological Resources; Hydrology and Water
significance levels under
Quality; and Geology and Soils, above,
respective Air Quality,
Noise, Cultural Resources,
Cultural Resources,
Biological Resources,
Hydrology and Water
Quality, and Soils and
Geology sections, above.
Page ES -62
City of Chula Vista
May 2009
Table ES -1
Summary of Environmental Impacts and Mitigation Measures
Impact
Threshold 2: Fail to provide 500 square feet of library
space adeguately eguipped and staffed per 1,000
population.
Impacts would be significant if the proposed library
were not provided commensurate with demand.
Mitigation Measures
Mitigation Measure 4.11,4 -1:
Prior to the issuance of each building permit for any residential
dwelling units, the Applicant shall pay required Public Facility
Development Impact Fees in accordance with the fees in effect at
the time of building permit issuance and phasing approved in the
PFFP:
Mitigation Measure 4.11.4 -2:
The Applicant shall deliver a site for the public library in
accordance with the PFFP
Mitigation Measure 4.11.4 -3:
Subiect to approval of the City Council, in lieu of paying the
required impact fee, the Applicant may satisfy that requirement
through a written agreement by which the Applicant agrees to
either pay the fee or build the facility in question, pursuant to
the terms of the agreement.
Executive Summary
Significance after
Mitigation
Less than significant with
Mitigation
Threshold 3: Be inconsistent with General Plan
GDP or other objectives and policies regarding_lij? a
services thereby resulting in a significant physical
impact.
The project is consistent with General Plan objectives No significant impacts have been identified, and no mitigation Less than significant
and policies pertaining to library services. measures are required.
Eastern Urban Center sectional Planning Area EIR City of Chula Vista
State Cleannghouse No. 2007049074 May 2009
Page ES -63
Summary of Environmental Impacts and Mitigation Measures
Impact
Parks and Recreation, Open Space and Trails:
Threshold 1: Increase use of existing neighborhood
and regional parks or other recreational facilities such
that substantial Physical deterioration of the facili
would occur or be accelerated.
The project would have a less than significant impact
with respect to the physical deterioration of existing
park and recreational facilities.
Threshold 2: The Project would require the
construction or expansion of recreational facilities
which might have an adverse Physical effect on the
environment.
The analysis of the EUC SPA Plan's construction
impacts assumes the development of parks and
recreational facilities. Construction impacts are
analyzed in Sections 4.4, Air Quality; 4.5, Noise; 4.6.
Cultural Resources; 4.7; Biological Resources; 4.9,
Hydrology and Water Quality; and 4.10, Geology and
Soils of the EIR.
Executive Summary
Significance after
Mitigation Measures Mitigation
As no significant Impacts have been identified, no mitigation Less than significant
measures are required.
See construction mitigation measures under Air Quality; Noise;
See construction
Cultural Resources; Biological Resources: Hydrology and Water
significance levels under
Quality; and Geology and Soils, above
respective Air Quality,
Noise, Cultural Resources,
Cultural Resources,
Biological Resources,
Hydrology and Water
Quality, and Soils and
Geology sections, above.
Threshold 3: The proiect fails to meet the City`s
threshold standard of three acres of neighborhood
and community parkland Per 1,000 residents.T
A potentially significant Impact could result, due to Mitigation Measure 4.11.5.1: Less than significant with
increased demand on existing parkland and facilities. Prior to approval of the final map(s), or for projects not requiring a mitigation
if dedication of parkland and development of new
final map prior to building permit approval, for residential projects,
eastern urban center Sectional Planning Area EIR
State Cleannghouse No. 2007049074
Page ES -64
City of Chula Vista
May 2009
Executive Summary
Summary of Environmental Impacts and Mitigation Measures
Significance after
Impact Mitigation Measures Mitigation
recreation facilities does not coincide with project the Applicant(s) shall dedicate parkland and pay in lieu fees for
implementation and project population growth. the area covered by the final map(s). The delivery of said
parkland and payment of in lieu fees shall be in accordance with
the fees and phasing approved in the Public Facilities Financing
Plan for the SPA Plan and an EUC Park Agreement, subject to
approval of the Directors of Recreation and Development
Services.
Eastern Urban Center Sectional Planning Area EIR
State Clearinghouse No. 2007041074
Mitigation Measure 4.11.5 -2:
Prior to issuance of each building permit for any residential
dwelling units, the Applicant(s) shall pay recreation facility
development impact fees (part of the Public Facilities
Development Impact Fee) in accordance with the fees in effect at
the time of building permit issuance and phasing approved in the
PFFP for the SPA Plan, subject to approval of the Directors of
Recreation and Development Services.
Mitigation Measure 4.11.5.3:
The Applicant may, subject to City Council approval, enter into a
written agreement with the City identifying the Applicant's
parkland acreage dedication, park development improvements,
and in lieu fee obligations and the timing and method of satisfying
those obligations_ If the Applicant and the City enter into such an
agreement, the Applicant may satisfy its parkland dedication,
improvement and in lieu fee obligations pursuant to the terms of
that agreement.
Page ES -65
City of Chula Vista
May 2009
Executive Summary
Summary of Environmental Impacts and Mitigation Measures
Eastern Urban Center Sectional Planning Area EIR
State Clearinghouse No. 2007041074
Page ES -66
City of Chula Vista
Mav 2009
Significance after
Impact
Mitigation Measures
Mitigation
Threshold 4: Be inconsistent with General Plan.
GDP or other relevant plan objectives and policies
regarding parks thereby resulting in a significant
physical impact.
The proposed project would be consistent with
No significant impacts have been identified, and no mitigation
Less than significant_
applicable policies of the General Plan, GDP;
measures are required.
Greenbelt Master Plan, and Parks and Recreation
Master Plan.
Water Services:
Threshold 1: Reguire or result in the construction of
new water facilities or expansion of existing facilities,
the construction of which could cause significant
environmental effects.
The impact to water storage and pumping facilities
Mitigation Measure 4.11.6-2:
Less than significant with
would be significant if construction of facilities does
mitigation
not coincide with anticipated growth.
Prior to approval of the first final map, the applicant shall provide a
Sub -Area Master Plan (SAMP) to the Otay Water District. Water
As fire flow requirements are a function of the size
facilities improvements shall be financed or installed on -site and
and materials of structures, and no structure
off -site in accordance with the fees and phasing in the approved
locations or specifications are available at this
PFFP and SAMP. The SAMP shall include, but shall not be
time, fire flow pressure requirements are not
limited to:
known at this time and could be significant.
Existing pipeline locations, size, and capacity;
• The proposed points of connection and system;
• The estimated water demands and /or sewer flow
calculations;
• Governing fire department's flow requirements (flow rate,
duration, hydrant spacing, etc);
Eastern Urban Center Sectional Planning Area EIR
State Clearinghouse No. 2007041074
Page ES -66
City of Chula Vista
Mav 2009
Executive Summary
Summary of Environmental Impacts and Mitigation Measures
Significance after
Impact _ Mitigation Measures Mitigation
• Agency Master Plan;
Threshold 2: Have sufficient water supplies available
to serve the project from existing entitlements and
resources, or require new or expanded entitlements.
The increase in demand for water would not have a
significant impact on the ability of OWD to provide
service to the proposed project. Mitigation measures
are recommended to ensure water availability. .
Threshold 3: Impacts would be significant if the
proiect exceeded the City's Growth Management
threshold standards which seek to ensure that
adequate supplies of quality water appropriate for
intended uses, are available. Standards reauire the
following actions:
Eastern Urban Center Sectional Planning Area EIR
State Cleannghouse No. 2007049074
• Agency's planning criteria (see Sections 4.1 through 4.3
of the Water Agencies Standards)
Water quality maintenance; and
• Size of the system and number of lots to be served.
Mitigation Measure 4.11.6 -1:
Prior to issuance of each building permit, the permit applicant
shall deliver to the City service availability letters from the
appropriate water district.
Mitigation Measure 4.11.6 -3:
Prior to approval of the first final map, the applicant shall obtain
OWD's approval of a Sub Area Master Plan (SAMP) for both
potable and recycled water. Any on -site and off -site facilities
identified in the SAMP required to serve a final mapped area shall
be secured or constructed by the applicant prior to the approval of
the final map.
Page ES -67
Less than significant with
mitigation
City of Chula Vista
May 2009
Executive Summary
Summary of Environmental Impacts and Mitigation Measures
Significance after
_ Impact Mitigation Measures Mitigation
- The applicant must request and deliver to the
City service availability letters from the
appropriate water district for each Droiect:
- The applicant is required to submit a Water
Conservation Plan along with the SPA Plan
application;
The project plans shall ensure an adequate
supply of water on a long-term basis prior to
the development of each Otay Ranch SPA.
The project would comply with the City's service As no significant Impacts have been identified.. no mitigation Less than significant
availability requirements and would be consistent measures are required.
with the City's threshold standards that seek to
ensure adequate supplies of water.
Threshold 4: Be inconsistent with General Plan
GDP or other relevant obiectives and policies
regarding water supDly thereby resulting in a
significant physical impact.
The project would be consistent with applicable As no significant impacts have been identified, no mitigation Less than significant
water services policies and with Objective GM =9 of measures are required.
the General Plan regarding the City's commitment
to ensuring adequate public services
commensurate with need.
Eastern Urban Center Sectional Plannsng Area EIR
State Cleannghouse No. 20 0 7 041 0 74
Page ES -68
City of Chula Vista
May 2009
Executive Summary
Table
Summary of Environmental Impacts and Mitigation Measures
Significance after
Impact Mitigation Measures Mitigation
Wastewater Services:
Threshold 1: The project would result in a
determination by the wastewater treatment provider
which serves or may serve the project that it has
inadequate capacity to serve the oroiect's projected
demand in addition to the providers existing
commitments.
The development of the EUC would be consistent
with the growth anticipated by the Otay Ranch GDP
and would not result in a determination by the City
of Chula Vista or METRO that it has inadequate
capacity to serve the proposed project's protected
demand in addition to the providers' existing
commitments. Although additional capacity may
need to be acquired from METRO or other sources
to support buildout of the proposed project and
other anticipated development in the City, building
permits within the EUC would only be issued once
the City Engineer has determined that adequate
treatment capacity exists. As no development
would occur in the absence of adequate treatment
capacity, no impacts associated with inadequate
treatment capacity would occur.
Threshold 2: The project would require the
construction of new wastewater treatment facilities or
expansion of existing facilities, the construction of
would cause significant environmental effects
Eastern Urban Center Sectional Planning Area EtR
State Cieannghouse No. 2007041074
No significant impacts have been identified, and no mitigation Less than significant
measures are required.
Page ES-69
City of Chula Vista
Mav 2009
Summary of Environmental Impacts and Mitigation Measures
Impact
With respect to the capacity of off -site sewage
conveyance lines, mitigation measures are
recommended to ensure that the proposed project
would not exceed the capacity of any line in the
existing wastewater conveyance system by more
than 75 percent of pipe capacity for pipes greater
than 12 -inch in diameter or 50 percent for pipes 12-
inch or less in diameter. Construction of sewer
facilities has the potential to result in significant
short-term air emissions (including dust; noise;
impacts on biological, archaeological, and
paleontological resources; erosion; and ground
water contamination. (Please see Sections 4.4, Air
Quality; 4.5 Noise; 4.6 Cultural Resources;
4.7, Biological Resources; and 4.9, Hydrology and
Water Quality, above which provide mitigation for
any construction impacts of off -site improvements.)
In addition, the proposed project would require
sewage treatment beyond the City's existing
wastewater treatment capacity rights and allocated
additional treatment capacity. Therefore, additional
capacity would need to be acquired from METRO
or other sources. The means by which additional
treatment capacity would be acquired is unknown
and the development of additional capacity may
require construction of new treatment facilities. As
the location and scope of construction for any
newly developed treatment facilities is unknown,
the development of treatment capacity beyond the
City's existing and allocated capacity may result in
Executive Summary
Significance after
Mitigation Measures Mitigation
Mitigation Measure 4.11.7 -1:
Prior to design review approval and in accordance with the
Intensity Transfer provisions in the EUC SPA Plan, the
Applicant(s) shall provide a wastewater technical report with each
proposed project requesting an intensity transfer. The technical
report shall demonstrate to the satisfaction of the City Engineer
that adequate wastewater infrastructure will be available to
support the transfer. The transfer of residential density shall be
limited by the ability of sewerage facilities to accommodate flows
(as shown in Figure 4.11 -7, Allowable EDUs in the On -site Sewer
System).
Mitigation Measure 4.11.7 -2:
Prior to issuance of the first building permit related to any uses
within the portion of the EUC served by the Poggi Canyon
System, and to the satisfaction of the City Engineer, the
developer shall:
• Bond for the improvement of the constrained reach at
Brandywine Avenue (Reach P270) with the first final map
for the project.
• Monitor sewer flows within the Poggi Canyon Sewer
Basin to the satisfaction of the City Engineer and submit
quarterly reports to the City upon the issuance of the first
building permit for the EUC;
• Obtain the approval for the improvement plan and any
necessary environmental permits for Reach P270 prior to
the first final "B" map, unless otherwise approved by the
City Engineer;
Less than significant with
mitigation with respect to
conveyance systems.
Significant and unavoidable
with respect to construction
of new wastewater
treatment facilities.
Eastern Urban Center Sectional Planning Area EIR City of Chula Vista
State Cleannghouse No. 2007041074 Mav 2009
Page ES -70
Executive Summary
Table ES -1
Summary of Environmental Impacts and Mitigation Measures
Significance after
Impact Mitigation Measures Mitigation
a potentially significant environmental impact, even Commence construction of Reach P270 upon reaching a
understanding that such projects would likely be d/D of 0.75, unless otherwise approved by the City
subject to environmental review Engineer;
Eastern Urban Center Sectional Planning Area EIR
Slate Clearinghouse No. 2007041074
• Complete construction of Reach P270 the sooner of one
year after occupancy of the first unit sewering to the
Poggi Canyon System, or a d/D of 0.85, unless otherwise
approved by the City Engineer;
• Not seek building permits within the Poggi Canyon Sewer
Basin if any segment of the Poggi Canyon Trunk Sewer
achieves a d/D of 0.85, or the City Engineer has
determined, at his sole discretion, that there is not
enough San Diego METRO treatment capacity for the
proposed project; and
• Upon the completion of the Rock Mountain Trunk Sewer,
divert those Village Seven flows from the Poggi Canyon
Sewer Basin that were ultimately designed to flow to Salt
Creek Sewer Basin so that additional capacity is
provided for the EUC's permanent flows.
Mitigation Measure 4.11.73:
Prior to issuance of the first building permit related to any uses
within the portion of the EUC served by the Village Eleven sewer
lateral to the Salt Creek Sewer Interceptor, and to the satisfaction
of the City Engineer, the developer shall:
• Bond for the improvement of the constrained reach along
the Village Eleven lateral into the Salt Creek Sewer
Page ES -71
City of Chula Vista
May 2009
Executive Summary
Summary of Environmental Impacts and Mitigation Measures
Significance after
Impact Mitigation Measures Mitigation
Interceptor with the first final map for the proposed
project;
• Monitor sewer flows within the constrained reach along
the Village Eleven lateral into the Salt Creek Sewer
Interceptor to the satisfaction of the City Engineer and
submit quarterly reports to the City upon the issuance of
the first building permit for the proposed project that
sewers to the Salt Creek System;
• Obtain the approval for the improvement plan and any
necessary environmental permits for the constrained
reach along the Village Eleven lateral into the Salt Creek
Sewer Interceptor prior to the first final "B" map covering
any parcel that sewers to the Salt Creek System, unless
otherwise approved by the City Engineer;
• Commence construction of the constrained reach along
the Village Eleven lateral into the Salt Creek Sewer
Interceptor upon reaching a d/D of 0.75. unless otherwise
approved by the City Engineer;
• Complete construction of the constrained reach along the
Village Eleven lateral into the Salt Creek Sewer
Interceptor the sooner of one year after occupancy of the
first unit sewering to the Salt Creek System, or a d/D of
0.85, unless otherwise approved by the City Engineer;
• Not seek building permits within the Salt Creek Sewer
Basin if any portion of the constrained reach along the
Village Eleven lateral into the Salt Creek Sewer
Eastern Urban Center Sectional Planning Area EIR City of Chula Vista
State Cleannghouse No. 2007041074 May 2009
Page ES -72
Executive Summ
Summary of Environmental Impacts and Mitigation Measures
Significance after
Impact Mitigation Measures Mitigation
Interceptor achieves a d/D of 0.85, or the City Engineer
has determined, at his sole discretion, that there is not
enough San Diego METRO treatment capacity for the
proposed project; and
Threshold 3: Sewage flows and volumes shall not
exceed City Engineering Standards: (1) 75 percent of
capacity for mains over 12 inches and 50 percent of
capacity for mains 12 inches and smaller; and (2) a
cleaning velocity of 2 fps, or a minimum slope of
1 percent.
See Threshold 2, above.
Eastern Urban Center Sectional Planning Area EIR
State Cleannghouse No. 2007041074
• Upon the completion of the Rock Mountain Trunk Sewer,
divert those temporary flows from the constrained reach
along the Village Eleven lateral to the sewer within Bob
Pletcher Way.
Mitigation Measure 4.11.74:
Prior to issuance of each building permit, the applicant shall pay
the DIF at the rate in effect at the time of building permit issuance
and corresponding to the sewer basin that the building will
permanently sewer to, unless stated otherwise in a development
agreement that has been approved by the City Council.
See Mitigation Measures 4.11.7 -2 and 4.11.7 -3, above. Less than significant with
mitigation
Page ES -73
City of Chuia Vista
Mav 2009
Executive Summary
Summary of Environmental Impacts and Mitigation Measures
Significance after
Impact Mitigation Measures Mitigation
Threshold 4: Be inconsistent with General Plan.
GDP or other relevant obiectives and policies
regarding water supply thereby resulting in a
significant physical impact.
The project would be consistent with General Plan No significant impacts have been identified, and no mitigation Less than significant
objectives and policies pertaining to wastewater measures are required.
services.
Solid Waste Services:
Threshold 1: The proiect would be served by a
landfill with insufficient permitted capacity to
accommodate the proiect's solid waste disposal
needs.
The proposed protect is included in, and consistent
No significant impacts have been identified, and no mitigation Less than significant.
with, the General Plan's projected population growth,
measures are required.
for which adequate future landfill capacity is
anticipated. With the availability of adequate solid
disposal capacity and the implementation of the City's
recycling policies and solid waste reduction programs
that are applicable to the EUC and City at large, no
significant solid waste impacts have been identified
for the proposed EUC SPA Plan. Thus, the project
would have a less than significant impact with respect
to solid waste disposal capacity.
Threshold 2: The protect does not comply with
As no significant impacts have been identified, no mitigation Less than significant
federal, state, and local statutes and regulations
measures are required.
relating to solid waste:
The project would be consistent with all applicable
statutes and regulations, and would have a less than
Eastern Urban Center Sectional Planning Area EIR
State Cleannghouse No. 2007041074
Page ES -74
City of Chula Vista
Mav 2009
Executive Summary
Summary of Environmental Impacts and Mitigation Measures
Significance after
Impact Mitigation Measures Mitigation
significant impact with respect to solid waste
collection and management.
Hazards and Risk of Upset:
Threshold 1: Is located on a site that is included on a
list of hazardous materials sites compiled pursuant to
Government Code Section 65962.5 and, as a result
a significant hazard to the public or the environment
would be created.
The EUC SPA Plan, SSA, SCSL, and PCSI areas
are not listed in any regulatory databases. However,
the proposed fire station would require the use fuel
storage tanks containing hazardous materials.
Thresholds 2 & 3: Creates a significant hazard to the
public or environment through the routine transport,
use or disposal of hazardous materials: Creates a
significant hazard to the public or reasonably
foreseeable upset and accident conditions involving
the release of hazardous materials into the
environment.
Potentially significant impacts could result from the
exposure of construction workers and the public to
any OCP- containing soils in Areas A, B, and C of the
EUC SPA Plan area. Exposure may result from any
OCP- containing soils that would be released or
Eastern Urban Center Sectional Planning Area EIR
State Clearinghouse No. 2007041074
Mitigation Measure 4.12 -6:
Concurrent with the first submittal of construction plans for the
fire station, the fire station design shall demonstrate to the
satisfaction of the Director of Development Services and Fire
Marshal that the above - ground fuel tanks comply with
applicable local, State and Federal fuel storage and
containment regulations.
Mitigation Measure 4.12 -1:
Prior to approval of grading permits, the following note shall be
placed on the grading plans to the satisfaction of the City
Engineer: "Grading with Areas A, B, and C, as shown in Figure 2
Page ES -75
Less than significant.
Less than significant with
mitigation
City of Chula Vista
Mav 2009
Summary of Environmental Impacts and Mitigation Measures
Impact
become airborne during excavation, be left
uncovered on -site, or exported off -site.
Threshold 4: Emits hazardous emissions or handle
hazardous or acutelv hazardous materials,
substances, or waste within one - quarter mile of an
existing or proposed school.
Eastern Urban Center Sectional Planning Area EIR
State Clearinghouse No. 2007041074
Executive Summary
Significance after
Mitigation Measures Mitigation
of the Organic Pesticide Assessment and Soil Reuse Plan
(prepared by Geocon dated June 5, 2007, revised October 4,
2007), shall be managed in accordance with the remediation
measures included in the Organic Pesticide Assessment and Soil
Reuse Plan (prepared by Geocon dated June 5, 2007, revised
October 4, 2007) to the satisfaction of the City Engineer." The
grading plans shall demonstrate compliance with the 2007
Geocon report.
Mitigation Measure 4.12 -2:
In accordance with the City's waste management ordinances and
Stormwater Manual, the applicant shall implement Best
Management Practices in Areas A, B, and C, during the
excavation and placement of soil from the upper two feet of
existing grade, so that dust, erosion, excessive pooling, and
stormwater runoff do not pose a problem at the site to the
satisfaction of the City Engineer.
Mitigation Measure 4.12 -3:
Prior to issuance of building occupancy permit, the developer
shall post information regarding Pacific Waste Services'
Households Hazardous Waste Collection Facility shall be posted
within each residential unit_
Page ES -76
City of Chula Vista
May 2009
Summary of Environmental Impacts and Mitigation Measures
Impact Mitigation Measures
The presence of organic toxins and gases at the See Mitigation Measures 4.12 -1 and 4.12 -3, above.
future school site may exceed CVESD and state
standards for public schools; thus the project would
have a potentially significant impact with respect to
this threshold.
Thresholds 5 & 6: Is located within an airport land
use plan or, where such a plan has not been
adopted, within two miles of a public airport or public
use airport and would result in a safety hazard for
people residing or working in the project area: Is
located within the vicinity of a private airstrip and
would result in a safety hazard for people residing or
working in the project area.
Hazards associated with the poor visibility of tall
structures under construction or rooftop cranes may
contribute to an airport - related hazard, due to the
proximity of Brown Field and aircraft over flight of the
EUC under VFR or circle -to -land procedures. Also,
as buildings, rooftop cranes and other temporary
construction equipment in the EUC may exceed 170
feet in height, these structures would be
approximately 270 feet higher than the Brown Field
runway elevation. This may present an aircraft safety
hazard.
Eastern Urban Center Sectional Planning Area EIR
State Clearinghouse No. 2007041074
Mitigation Measure 4.12 -4:
Prior to issuance of building permits, the FAA shall be notified of
each high -rise building, structure or construction equipment that
would be 800 feet or more above MSL (275 feet above Brown
Field ground level). FAA recommendations regarding marking
and /or lighting shall be incorporated into unfinished high rise
buildings, rooftop cranes, finished high rise buildings, and any
other tall structures.
Page ES -77
Executive Summary
Significance after
Mitigation
Less than significant with
mitigation.
Less than significant with
mitigation
City of Chula Vista
Mav 2009
Executive Summary
Summary of Environmental Impacts and Mitigation Measures
Significance after
Impact Mitigation Measures Mitigation
Threshold 7: Impairs implementation of or physically
interferes with an adopted emergency response plan
or emergency evacuation plan.
Impacts with respect to emergency preparedness As no significant impacts have been identified, no mitigation Less than significant
and evacuation would be less than significant. measures are required.
Threshold 8: Expose people or structures to a
significant risk or loss. iniurv. or death involving
wildland fires, including where wildlands are adjacent
to urbanized areas.
Although the EUC SPA Plan area is not designated Mitigation Measure 4.12 -5: Less than significant with
as `wviidlands," vacant lands in which weeds and mitigation
brush have not been controlled in close proximity to Brush and weed control within open space and undeveloped
occupied uses may present a potentially significant areas of the EUC not used for agricultural purposes, shall be
wildfire hazard. implemented as applicable in accordance with the City's Urban -
Wildland Interface Code.
Threshold 9: Increase in urbanization would result in
an increase in the uses, transport, storage, and
disposal of hazardous waste materials and an
associated increase in the risk of an upset condition
in the area.
Operation of the protect would involve the routine use Mitigation Measure 4.12 -3: Less than significant with
of common landscaping, construction, and cleaning Prior to issuance of building permit, information regarding Pacific mitigation
materials that may be hazardous to the environment, Waste Services' Households Hazardous Waste Collection Facility
if not managed according to state statutes and shall be posted within each residential unit.
manufactures' recommendations.
Eastern Urban Center Sectional Planning Area EIR
State Clearinghouse No. 2007041074
Page ES -78
City of Chula Vista
May 2009
Summary of Environmental Impacts and Mitigation Measures
Imoact
Threshold 10: Historic use of pesticides which would
result in soil contamination and health effects.
Potentially significant impacts could result from the
exposure of construction workers and the public to
any OCP- containing soils in Areas A, B, and C of the
EUC.
Threshold 11: Be inconsistent with General Plan,
GDP. and other objectives and policies regarding
hazards thereby resulting in a significant physical
Impact.
The project would be consistent with the General
Plan obiectives and policies that pertain to brush
management and the handling and disposal of
hazardous materials.
Measures
See- Mitigation Measures 4.12 -1 and 4.12 -2, above.
Executive
Significance after
Mitigation
Less than significant with
mitigation
As no significant impacts have been identified, no mitigation Less than significant
measures are required.
Housing and Population:
Threshold 1: Induce substantial population growth in
an area, either directly (i.e., through the development
of new homes or businesses) or indirectly (Le.,
through extension of roads or other Infrastructure.
The proposed project's maximum development level No significant impacts have been identified, and no mitigation Less than significant
would not induce substantial population growth in the measures are required.
area beyond that already planned under the Otay
Ranch GDP and Chula Vista General Plan. Thus,
population growth inducement would be less than
significant.
Eastern Urban Center Sectional Planning Area EIR City of Chula Vista
State Clearinghouse No. 2007041074 May 2009
Page ES -79
Executive Summary
Summary of Environmental Impacts and Mitigation Measures
Significance after
Mitigation Measures Mitigation
Threshold 2: Displace substantial numbers of
existing households or people, necessitating the
construction of replacement housing elsewhere.
The project would not displace any existing As no impacts have been identified, no mitigation measures are Less than significant
households or people. No impacts with respect to required.
this threshold would occur.
Threshold 3: Is inconsistent with Chula Vista General
Plan and GDP Housing Objectives.
The proposed project would be consistent with the As no significant impacts have been identified, no mitigation Less than significant
General Plan's and GOP's housing objectives and measures are required.
policies. Impacts with respect to these plans would
be less than significant.
Global Climate Change:
Thresholds 1: Conflict with or obstruct goals or
strategies of the California Global Solutions Act of
2006 (AB32) or related Executive Orders.
By incorporating proposed project features, the No significant impacts have been identified, and no mitigation Less than significant
project would result in GHG emission rates 31 measures are required.
percent lower than "business as usual ". Because
these project features would reduce protect GHG
emissions and are consistent with the State's CAT
strategies, the project would not conflict with or
obstruct the State's goals regarding global climate
change and impacts in this regard would be less than
significant. Regarding GHG emissions from
construction activities, construction of the proposed
project would incorporate construction "best
practices," that would reduce GHG emissions. These
Eastern Urban Center Sectional Planning Area EIR
State Clearinghouse No. 2007041074
Page ES -80
City of Chula Vista
May 2009
Summary of Environmental Impacts and Mitigation Measures
Impact
"best practices" represent an improvement above
conventional construction practices, and thus are an
improvement above "business as usual." Therefore,
impacts in this regard would be less than significant.
Threshold 2: A substantially increased exposure of
the project from the potential adverse effects of global
warming identified in the California Global Warming
Solutions Act of 2006 (AB32.
The proiect has the potential to result in one or more
of the potential adverse effects of global warming
identified in the California Global Warming Solutions
Act of 2006 because of the identified significant air
quality impacts. Regarding water supply, it is
considered premature and speculative to make an
assessment of impacts under CEQA of how climate
change would affect water availability for the project.
With implementation of Air Quality mitigation
measures and water conservation project features,
impact would be considered less than significant.
Cumulative Impacts:
Land Use
Executive Summary
Significance after
Mitigation Measures Mitigation
See Air Quality, Transportation, and Water mitigation measures, Less than significant with
above. mitigation
The cumulative analysis incorporates the General No significant impacts have been identified, and no mitigation Less than significant
Plan EIR by reference. The General Plan EIR measures are required.
includes projects within the four planning areas,
and encompasses the Otay Ranch GDP in the
East Planning Area. The project would be
consistent with applicable objectives and policies
Eastern Urban Center Sectional Planning Area EIR
State Cleannghouse No. 2007041074
Page ES -81
City of Chula Vista
Mav 2009
Summary of Environmental Impacts and Mitigation Measures
of the General Plan, including policies relevant to
the scale and type of development envisioned by
the GDP_ Of two large- scale, related projects
encompassed by the General Plan analysis (the
Chula Vista Bayfront Master Plan and the Otay
Ranch General Development Plan), the EIR for the
Village Two, Three, and a Portion of Four SPA
Plan (within the Otay Ranch GDP) identified a
significant and unavoidable inconsistency with
General Plan policies. However, the. proposed
project would not cumulatively contribute to this
land use impact as the project was determined to
be consistent with all applicable land use and land
compatibility policies. Therefore, cumulative
impacts with respect to land use would be less
than significant.
Landform /Aesthetics
The General Plan EIR finds that future
development would result in substantial changes to
landforms and visual quality in currently
undeveloped portions of the East Planning Area.
The General Plan EIR concluded that the
conversion of open, rolling hills to developed
condition would be cumulatively significant. In
addition, the Otay Ranch GDP Program EIR, states
that, as the proposed EUC SPA Plan would convert
undeveloped, rural land to dense urbanized uses,
impacts regarding the change in the existing visual
character or quality of the site are considered
significant. No feasible mitigation measures would
Eastern Urban Center Sectional Planning Area EIR
State Clearinghouse No. 2007041074
Executive Summary
Significance after
Mitigation Measures Mitigation
No feasible mitigation measures have been identified that would Significant and unavoidable
reduce this cumulative impact to a less than significant level. cumulative Impact regarding
the reduction of open space
due to urban development.
Page ES -82
City of Chula Vista
May 2009
Summary of Environmental Impacts and Mitigation Measures
reduce this impact to a less than significant level,
as any development of the EUC would impact
existing open space. The proposed project and
related projects in the East Planning Area would
cumulatively contribute to the diminishment of open
space. Therefore, the project and related projects
would have a cumulatively significant aesthetic
impact.
Transportation
The General Plan and the Otay Ranch GDP
Program EIRs conclude that, even though
mitigation measures exist to reduce traffic - related
impacts, the incremental cumulative impacts of
future projects would remain significant and
unmitigable. The project and related projects,
including the Village Two, Three, and a Portion of
Four SPA Plan would mitigate traffic impacts on
streets segments and intersections to less than
significant levels. However no feasible mitigation
measures are available to the project and related
prolects to reduce impacts on the 1 -805 freeway to
less than significant levels. Therefore, the project
and related projects would have a significant and
unavoidable cumulative impact with respect to this
freeway.
Air Quality
The proposed EUC SPA Plan would have
significant direct impacts on ambient air quality due
to emissions of CO, NOx, VOC, PMIO and PM2.5
Eastern Urban Center Sectional Planning Area EIR
State Clearinghouse No. 2007041074
n Measures
Executive Summary
Significance after
Mitigation
See Mitigation Measures 4.3 -1 through 4.3 -15, above Less than significant with
regarding street and intersection impacts. respect to streets and
No mitigation measures are available to reduce the significant intersections.
cumulative impact with respect to freeway segments. Significant and unavoidable
cumulative impact on three
sections of the 1-805
freeway:
No mitigation measures are available to reduce the significant Significant and
cumulative air quality impact. unavoidable cumulative
impact with respect to
Page ES -83
City of Chula Vista
May 2009
Summary of Environmental Impacts and Mitigation Measures
Impact
that would exceed the City of Chula Vistas
significance thresholds. Emissions above
threshold standards would occur during both
project's construction and operation phase. The
EIR for the related project, the Village Two, Three,
and a Portion of Four SPA Plan, similarly
concludes that significant cumulative impacts with
respect to attainment and PMyo and other emission
standards would occur. Therefore, the proposed
project combined with the related development
within the EUC SPA Plan Area and other related
projects in the region would result in a cumulatively
significant impact.
A health risk assessment was performed to
quantify cancer risk above background for
residences proposed to be built near SR -125.
However, the absence of adopted numeric
standards directly related to the increased
exposure to TACs resulting from the location of
proposed residences in close proximity to highly
utilized roadways makes it too speculative to
determine significance at the project level. There
are currently no standards adopted by federal,
State, or regional agencies establishing acceptable
levels of cumulative exposure to or health risks
from airborne TACs. Consequently, a
determination as to the cumulative level of
significance related to potential health risks
resulting from implementation of the proposed
Eastern urban Center Sectional Planning Area EIR
State Clearinghouse No. 2007041074
Mitigation Measures
Page ES -84
Executiye Summary
Significance after
Mitigation
inconsistency with VOC,
NO., CO, PM,o and PM2.s
threshold standard and the
SDAPCD's current RAQS.
City of Chula Vista
Mav 2009
Summary of Environmental Impacts and Mitigation Measures
Impact Mitigation Measures
development and related projects is also too
speculative at this point in time.
Noise
The project and related projects represented by the
General Plan EIR could exacerbate noise levels to
a magnitude that significantly impacts receivers
where traffic volumes are projected to result in
noise level increases of more than 3 dB,
particularly at key intersections. As mitigation to
reduce high noise levels at existing receiver sites is
not available, the General Plan EIR concluded that,
noise impacts are cumulatively considerable,
significant, and not mitigated. Project- related
traffic is estimated to increase mobile noise from
0.4 to 2.4 dBA and would be below the 3.0 dBA
significance threshold. The proposed project EIR
concludes that project - specific mitigation measures
would reduce noise impacts to less than
significant. Nonetheless, the cumulative noise
increase resulting from the proposed project in
combination with related projects is expected to
exceed the 3.0 dBA significance threshold on key
roadway segments and is considered cumulatively
significant.
Archaeological and Historic Resources
See mitigation measures 4.5 -1 through 4.5 -7, above.
Executive Summary
Significance after
Mitigation
Significant and
unavoidable cumulative
impact with respect to
noise level increases at
key intersections
The project and related projects encompassed in See Mitigation Measures 4.6 -1 through 4.6 -5, above. Significant and
the General Plan would extend development into unavoidable cumulative
areas that may contain historical or archaeological impact with respect to
Eastern Urban Center Sectional Planning Area EIR
State Cleannghouse No. 2007041074
Page ES -85
City of Chula Vista
May 2009
Summary of Environmental Impacts and Mitigation Measures
Impact
resources. The proposed project would not result
in a significant impact on known archaeological
resources, but could result in significant impacts on
archaeological resources that may be uncovered
during project development. Impacts associated
with related projects in the area have been
determined to be significant and unavoidable.. The
project has proposed mitigation measures to
reduce project- related impacts on cultural
resources to a less than significant level.
However, while any individual project may avoid or
mitigate the direct loss of a specific resource, the
effect would be considerable when considered
cumulatively. Therefore, the prolect and related
projects would have a significant cumulative impact
with respect to historical and archaeological
resources.
Paleontological Resources
The project and related proiects encompassed in
the General Plan would extend development into
areas that may contain paleontological resources.
The proposed project would not result in a
significant impact on known paleontological
resources, but could result in significant impacts on
paleontological resources that may be uncovered
during project development. Impacts associated
with related projects in the area have been
determined to be significant and unavoidable. The
Eastern Urban Center Sectional Planning Area EiR
State Cleannghouse No. 2007041074
Mitigation Measures
See Mitigation Measures 4.6 -6 through 4.6 -9, above
Page ES -86
Executive Summary
Significance after
Mitigation
archaeological resources.
Less than significant with
mitigation
City of Chula VIsta
May 2009
Summary of Environmental Impacts and Mitigation Measures
project has proposed mitigation measures to
reduce project- related impacts on paleontological
resources to a less than significant level.
However, similar to the conclusion of the Village
Two, Three and Portion of Four EIR, mitigation
measures would reduce cumulative paleontological
impacts to below significance due to the fact that
the discoveries of paleontological resources would
contribute to important scientific information about
the natural history in southwestern San Diego
County.
Biological Resources
The General Plan EIR concluded that cumulative
impacts on biological resources would be less than
significant, with compliance with the MSCP Subarea
plan (which prevents significant impacts on biological
resources). The proposed project would have
temporary direct and indirect impacts on the Subarea
Plan's designated Preserve during the SCSL
Improvement. These impacts within the Preserve are
addressed and mitigated in accordance with the
requirements of the MSCP. Because compliance
with the MSCP Subarea Plan avoids cumulative
impacts on biological resources and, because the
proposed project provides measures that meet the
obligations of the plan, the proiect and related
proiects, which would be required to comply with
applicable MSCP policies, would not have a
significant cumulative impact on biological resources.
Eastern Urban Center Sectional Planning Area EIR
State Clearinghouse No. 2007041074
Executive Summa
Significance after
Mitigation Measures Mitigation
See Mitigation Measures 4.7 -1 through 4.7, above. Less than significant with
mitigation
Page ES -87
City of Chula Vista
Mav 2009
Summary of Environmental Impacts and Mitigation Measures
Impact
Agricultural Resources
The General Plan EIR concluded that, as no
farmlands of Statewide Importance existed in the city,
cumulative impacts would be less than significant.
However, the proposed project would result in the
loss of Farmland of Local Importance and, as such,
have a significant and unavoidable impact with
respect to agricultural resources. The EIR for the
related Village Two, Three, and a Portion of Four
SPA Plan also concluded that development would
result in the permanent loss or impairment of
agricultural lands. Therefore, the protect and related
projects would have a cumulatively significant impact
with respect to agricultural resources.
Hydrology and Water Quality
The General Plan EIR concluded that compliance
with General Plan policies EE2.5, which require
construction and land development techniques
pursuant to applicable SWRCB and RWQCB
requirements, including compliance with all federal,
state, and regional water quality objectives, and
General Plan Public Facilities obiectives would
ensure that hydrology and water quality impacts
would be self- mitigating and not significant. The
protect and related proiects would be in
compliance with existing regional water quality
protection programs and City drainage standards.
In addition, potential impacts would be reduced to
less than significance through the implementation
Eastern Urban Center Sectional Planning Area EIR
State Cleanngnouse No. 2007041074
Executive Summary
Significance after
Mitigation Measures Mitigation
See Mitigation Measure 4.8 -1, above.
See Mitigation Measures 4.9 -1 through 4.9 -10, above.
Page ES -88
Significant and
unavoidable cumulative
impact with respect to
agricultural resources
Less than significant with
mitigation
City of Chula Vista
May 2009
Summary of Environmental Impacts and Mitigation Measures
Impact
of proposed mitigation measures_ Therefore, the
project and related projects would have a less than
significant impact with respect to water quality and
hyd rology.
Geoloav and Soils
General Plan policies require an engineering
analysis to identify potential seismic hazards prior
to construction and allow for project- specific design
to avoid seismic hazards. Significant geological
impacts could occur within the project site and
region due to the presence of potentially liquefiable
soils (although the potential is identified as low In
the project's geotechnical report), slope instability,
or soils expansion. The City's Grading Ordinance
current seismic design specifications, current UBC
standards and other regulatory requirements would
be implemented to address geological hazards.
Although the proposed project and related projects
could result in potentially significant geological
impacts associated with liquefaction or other land
failure, impacts are site specific and not cumulative
in nature. Therefore, the project and related
projects would not have significant cumulative
impact with respect to geology and soils.
Measures
See Mitigation Measures 4.10-1 through 4.10 -3, above
Fire Services
The prolect and related projects encompassed in See Mitigation Measures 4.11.1 -1 through 4.11.1 -5, above.
the General Plan would increase demand for fire
services. Accordinq to the General Plan EIR, the
Eastern Urban Center Sectional Planning Area EIR
State Clearinghouse No. 2007041074
Page ES -89
Executive Summary
Significance after
Mitigation
Less than significant with
mitigation
Less than significant with
mitigation
City of Chula Vista
Mav 2009
Executive Summary
Summary of Environmental Impacts and Mitigation Measures
Significance after
Impact Mitigation Measures Mitigation
City's threshold standards regarding fire service
prohibit projects that are out of compliance with
those standards. In addition, the City's Growth
Management regulations tie the pace of
development in the EUC SPA Plan to the provision
of public facilities and improvements. The impacts
of the proposed project and related prolects on fire
services would be reduced to less than
significance by compliance with their respective
PFFP's. The proposed EUC SPA Plan also
incorporates a fire station site in the Mixed -Use
Civic /Office Core District that would meet the
minimum demand of the proposed EUC SPA Plan
and surrounding area. With the implementation of
mitigation measures, the project and related
projects would not have significant cumulative
impact on fire services.
Police Services
The project and related projects would increase
demand on police services. City's threshold
standards regarding police services prohibit
projects that are out of compliance with those
standards. In addition, the City's Growth
Management regulations tie the pace of
development in the EUC SPA Plan to the provision
of public facilities and improvements. The impacts
of the proposed project and related projects on
police services would be reduced to less than
significance through compliance with their
respective PFFP's. However, the CVPD currently
Eastern Urban Center Sectional Planning Area EIR
State Clearinghouse No. 2007041074
See Mitigation Measures 4.11.2 -1 through 4.11.2 -3, above.
Page ES -90
Less than significant with
mitigation
City of Chula Vista
May 2009
Summary of Environmental Impacts and Mitigation Measures
does not meet the GMOC thresholds for Priority II
calls and, as development of the proposed project
would increase demand on police services,
including five additional officers, project impacts on
police services would be significant. However,
with the implementation of mitigation measures,
the impact of the proposed project, combined with
the related projects, would not have a significant
cumulative impact on police services
Schools
The project and related proiects would increase
demand on schools and result in the need for
additional schools. The provision of schools is the
responsibility of the school district when additional
demand is warranted. Impacts resulting from
development completed in conformance with the
proposed General Plan are considered to be self -
mitigating because policies of the General Plan
accommodate projected student population,
ensure that school services and facilities are
concurrent with need, and are based on a
quantitative threshold standard. The
implementation of PFFP requirements attached to
new development would reduce impacts to a less
than significant level. Therefore, the project and
related projects would not have a significant
cumulative impact on school services.
Eastern Urban Center Sectional Planning Area EIR
State Cleannghouse No. 2007041074
Executive Summary
Significance after
Mitigation Measures Mitigation
See Mitigation Measures 4-11.3-1 and 4.11.3 -2, above.
Page ES -91
Less than significant with
mitigation
City of Chula Vista
May 2009
Executive Summary
Summary of Environmental Impacts and Mitigation Measures
Significance after
Impact Mitigation Measures Mitigation
Libraries
The project and related projects would increase
demand for library services. The City's threshold
standards for libraries may prohibit projects that
are out of compliance with those standards. In
addition, the City's Growth Management
regulations tie the pace of development in the EUC
SPA Plan to the provision of public facilities and
improvements. The impacts of the proposed
project and related projects on libraries would be
reduced to less than significance by compliance
with their respective PFFP's. The proposed EUC
SPA Plan also incorporates a library site in the
Mixed -Use Civic /Office Core District that would to
serve the population of the EUC and would help to
alleviate the current deficiency in library space in
the City. With implementation of mitigation
measures to ensure PFFP compliance, the project
and related projects would not have a significant
cumulative impact on library services.
See Mitigation Measures 4.11.4 -1 through 4.11.4 -3, above. Less than significant with
mitigation
Parks. Recreation, Open Space. and Trails
The project and related projects would increase See Mitigation Measures 4.11.5-1 through 4.11.5 -4. above. Less than significant with
demand on parks, open space, and recreational mitigation
facilities. The City's threshold standard of three
acres of park land per 1,000 population for all new
development is considered self - mitigating.
Projects that are out of compliance with this
standard may be prohibited. In addition, the City's
Eastern Urban Center Sectional Planning Area EIR City of Chula Vista
State Cleannghouse No. 2007041074 May 2009
Page ES -92
Summary of Environmental Impacts and Mitigation Measures
1 m pact
Growth Management regulations tie the pace of
development in the EUC SPA Plan to the
dedication of park land or in lieu fees. The
proposed project and related protects are required
to provide for parkland and, if necessary,
equivalency fees to meet the City's GMOC
Threshold for parks. However, a potentially
significant impact could result if dedication of
parkland does not coincide with project
implementation. With the implementation of
mitigation measures and GMOC requirements, the
proposed proiect and related projects would not
have a significant impact on park resources.
Water
The project and related projects would increase
demand for potable and recycled water_ The
development of the project would be consistent with
the growth anticipated by the Otay Ranch GDP and
would not result in a determination by the City of
Chula Vista or OWD that it has inadequate capacity
to serve the projects' prolected demand in addition
to the providers' existing commitments. Building
permits for the project and related projects would
only be issued once the OWD has determined that
adequate water supply exists. Although the
regional water supplier has concluded that water
available to service the proposed project would be
adequate, impacts associated with water supply
and infrastructure are considered cumulatively
Eastern Urban Center Sectional Planning Area EIR
State Cleannghouse No. 2007041074
Executive Summary
Significance after
Mitigation Measures Mitigation
See Mitigation Measures 4.11.6 -1 through 4.11.6 -3, above
Page ES -93
Significant and unavoidable
impact with respect to water
supply and infrastructure.
City of Chula Vista
May 2009
Summary of Environmental Impacts and Mitigation Measures
Impact
significant, in accordance with the General Plan
EIR.
Wastewater
Existing policies require major developments to
prepare a PFFP that articulates needed facilities
and identifies funding mechanisms as well as
provides the authority to withhold discretionary
approvals and other measures. Implementation of
these policies would therefore avoid significant
cumulative impacts associated with a shortfall of
treatment capacity. However, tThe project and
related projects would increase demand on
wastewater services. Based on recent flow
analysis as part of the City's Wastewater Master
Plan, the City has begun discussions with the City
of San Diego to identify a mechanism for the
provision of additional treatment capacity. The
project's estimated daily sewage rate of 0.852 mgd
of wastewater combined with demand from other
planned projects would require sewage treatment
capacity beyond the City's existing capacity rights
and allocated additional treatment capacity. As
discussed under Wastewater Threshold 2 above
additional capacity would need to be acquired from
_METRO or other sources, and may include the
construction of new or expanded treatment
facilities. As the location and scope of construction
for any future expanded or newly developed
treatment facilities is unknown, potential
construction of new or expanded treatment
Eastern Urban Center Sectional Planning Area EIR
State Cleannghouse No. 2007041074
Mitigation Measures
Executive Summary
Significance after
Mitigation
No mitigation measures are available to reduce the proiect's Less thaA ^Significant with
significant unavoidable cumulative impact with respect to tnitig AmORand unavoidable
potential construction of new or expanded treatment impact
facilities ,
above.
Page ES -94
City of Chula Vista
May 2009
Summary of Environmental Impacts and Mitigation Measures
Impact
facilities may result in potentially significant and
unavoidable cumulative impacts
tFeatment GapaGity pFiOF a.-. the a FGyal of building
permits, wastewater- i m paGts world not be
Solid Waste
The project and related prolects would increase
demand on the Otay Landfill, which is expected to
have sufficient capacity until 2028. City policies to
reduce the solid waste stream, including recycling
and waste -to- energy programs, could further
reduce demand on the landfill. Cumulative Impacts
could also be reduced by additional solid waste
and recycling facilities, transporting trash outside
the region to less impacted areas, and meeting
state - mandated recycling goals. As the proposed
prolect is included in, and consistent with, the
General Plan's projected population growth and
projects and related projects would be required to
comply with the City's waste disposal policies, the
project and related projects would have a less than
significant impact with respect to solid waste
management.
Hazards /Risk of Upset
The project and related projects may use hazardous
materials, which are subject to existing state and
federal regulations, during construction and operation
phases. In addition, General Plan Objective EE 19
Eastern Urban Center Sectional Planning Area EIR
State Clearinghouse No. 2007041074
Executive Summary
Significance after
Mitigation Measures Mitigation
No significant impacts have been identified, and no mitigation Less than significant
measures are required.
See Mitigation Measures 4.12.1 through 4.12 -6, above
Page ES -95
Less than significant with
mitigation
City of Chula Vista
May 2009
Summary of Environmental Impacts and Mitigation Measures
assures that new development would not be
approved if a potential exists for hazardous materials
use and transport to affect residents. The project
would mitigate potentially significant impacts
associated with the exposure of construction workers
and the public to OCPs occurring in soils in Areas A,
B, and C of the EUC, or high -rise buildings in the
proximity of Brown Field approach or departure flight
paths. With compliance with mitigation measures and
existing regulations, the project and related projects
would not have a significant cumulative Impact with
respect to hazards and risk of upset.
Housing and Population
The project and related projects would increase
population growth in the region. Forecasted
growth is based on existing adopted land use
designations and zoning, including Specific Plan
areas and the GDP_ The proposed project would
be consistent with the General Plan's growth
protections based on the Otay Ranch GDP's multi-
family housing designation for the EUC SPA Plan
of 2,983 units and projected population of 7,696.
Related projects in the region have been
determined to be less than significant with respect
to housing and population impacts. As the
proposed project and related projects would not be
significant with respect to housing and population,
cumulative impacts would be less than significant.
Eastern Urban Center Sectional Planning Area EIR
Stale Cleannghouse No. 2007041074
Executive Summary
Significance after
Mitigation Measures Mitigation
No significant impacts have been identified and no mitigation Less than significant
measures are required.
Page ES -96
City of Chula Vista
Mav 2009
Executive Summary
Summary of Environmental Impacts and Mitigation Measures
Impact Mitigation Measures
Significance after
Mitigation
Global Climate Change
The project is estimated to represent a net See Transportation, Air Quality, and Water mitigation
Less than significant with
increase of 0.037 percent of 2004 State -wide total measures, above.
mitigation
emissions at buildout in 2030, although a sizeable
percentage of the operational GHG emissions are
already generated through future occupants' and
visitors' current activities. Executive Order S -3 -05
establishes GHG emissions targets for the state
and has resulted in the California Climate Action
Team (CAT)'s published recommendations and
strategies for reducing GHG emissions and
reaching the targets established in the executive
order. The proposed project, by implementing
GHG reducing project features, results in an
estimated increase of only 0.037 percent in 2004
State -wide emissions and supports of the State's
goals related to the reduction of greenhouse
gases. Thus, cumulative impacts with respect to
GHG would be less than significant.
Eastern Urban Center Sectional Planning Area EIR
State Clearinghouse No. 2007041074
Page ES -97
City of Chula Vista
May 2009