HomeMy WebLinkAbout2000-04-19; Planning Commission; Resolution 47600 0
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PLANNING COMMISSION RESOLUTION NO. 4760
A RESOLUTION OF THE PLANNING COMMISSION OF THE
CITY OF CARLSBAD, CALIFORNIA, APPROVING A
MITIGATED NEGATIVE DECLARATION, ADDENDUM,
AND MITIGATION MONITORING AND REPORTING
PROGRAM TO CONSTRUCT A SEWER LIFT STATION AND
INSTALL SEWER PIPELINES GENERALLY LOCATED
SOUTH OF THE AGUA HEDIONDA LAGOON IN LOCAL
FACILITIES MANAGEMENT ZONES 13 AND 8.
CASE NAME: SOUTH AGUA HEDIONDA INTERCEPTOR
CASE NO.: CUP 99-19/ HDP 00-03/ SUP 00-03
- REACH 3
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WHEREAS, the Carlsbad Municipal Water District, “Developer,” has filec
verified application with the City of Carlsbad regarding property owned by the San Diego G
12 II and Electric Company and the Kelly Land Company, “Owners,” described as
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Properties within the open space and agricultural lands south
of the Agua Hedionda Lagoon, north of Cannon Road/the
Cannon Road extension, and east of the 1-5 Freeway.
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(“the Property”); and
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WHEREAS, a Mitigated Negative Declaration, addendum and Mitigat
Monitoring and Reporting Program was prepared in conjunction with said project; and
WHEREAS, the Planning Commission did on the 19th day of April, 2000, holc
duly noticed public hearing as prescribed by law to consider said request; and
21 WHEREAS, at said public hearing, upon hearing and considering all testimc
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relating to the Mitigated Negative Declaration, addendum and Mitigated Monitoring a 24
considering any written comments received, the Planning Commission considered all fact 23
and arguments, examining the initial study, analyzing the information submitted by staff, 2
26 Reporting Program. 25
27 ll NOW, THEREFORE, BE IT HEREBY RESOLVED by the Plann
28 Commission as follows:
A) That the foregoing recitations are true and correct.
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B) That based on the evidence presented at the public hearing, the Plann
Commission hereby APPROVES the Mitigated Negative Declaration a
Mitigation Monitoring, addendum and Program, according to Exhibit ”3
dated March 3, 2000, and “PII” dated February 22, 2000, attached hereto
made a part hereof, based on the following findings:
Findinps:
1. The Planning Commission of the City of Carlsbad does hereby find:
A. It has reviewed, analyzed and considered a Mitigated Negative Declaration i
Mitigation Monitoring and Reporting Program, the environmental imp2
therein identified for this project and any comments thereon prior
APPROVING the project; and
B. The Mitigated Negative Declaration has been prepared in accordance VI
requirements of the California Environmental Quality Act, the State Guidelir
and the Environmental Protection Procedures of the City of Carlsbad; and
C. It reflects the independent judgment of the Planning Commission of the City
Carlsbad; and
D. Based on the EIA Part I1 and comments thereon, there is no substantial evidel
the project will have a significant effect on the environment.
E. Recirculation of the Negative Declaration is not required pursuant to Secti
15073.5 of the California Environmental Quality Act (CEQA) in that:
1. Mitigation measures are replaced with equal or more effecti
measures pursuant to Section 15074.1 of CEQA guidelines; and
2. New project revisions are added in response to written or verl
comments on the project’s effects identified in the proposed negati
declaration which are not new avoidable significant effects; and
3. Measures or conditions of project approval are added afi
circulation of the negative declaration which are not required
CEQA, which do not create new significant environmental effects al
are not necessary to mitigate an avoidable significant effect; and
4. New information is added to the negative declaration which mer6
clarifies, amplifies, or makes insignificant modifications to t
negative declaration.
...
PC RES0 NO. 4760 -2-
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PASSED, APPROVED AND ADOPTED at a regular meeting of the Plann
Commission of the City of Carlsbad, California, held on the 19th day of April, 2000, by
following vote, to wit:
AYES: Chairperson Compas, Commissioners Baker, Heineman,
L’Heureux, and Nielsen
NOES:
ABSENT: Commissioners Segall and Trigas
ABSTAIN:
CARLSBAD PLANNING COMMISSION
ATTEST:
”
MICHAEL J. HOLZM~ER
Planning Director
PC RES0 NO. 4760 -3-
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ENVIRONMENTAL IMPACT ASSESSMENT FORM - PART I1
(TO BE COMPLETED BY THE PLANNING DEPARTMENT)
CASE NO: CUP 99-19/HDP OO-O3/SUP 00-03
DATE: February 22,2000
BACKGROUND
1. CASE NAME: South Aaua Hedionda InterceDtor (SAHI) Reach 3
2. APPLICANT: City of Carlsbad
3. ADDRESS AND PHONE NUh4BER OF APPLICANT: 1635 Faraday Ave Carlsbad CA 92008-
7314 (760) 602-4619
4. DATE EIA FORM PART I SUBMITTED: January 14,2000
5. PROJECT DESCRIPTION:
The project is the construction of an addition to the City’s wastewater collection system and is known as
South Agua Hedionda Interceptor Reach 3, or “SAHI 3”. SAHI 3 would connect pipelines within the
Cannon Road right-of-way, which were, or will be, installed under previously authorized projects (i.e.
SAHI2, SAHI4 and SAHIT3B). SAHI 3 is located in the agricultural and open space areas south of the
Agua Hedionda Lagoon and north of Cannon Road.
More specifically, the project involves installation of pipelines and the construction of a lift station. Over one mile, or approximately 5,950 lineal feet, of underground pipeline would be installed. The pipeline
will be aligned in an easdwest direction, connecting an existing pipeline located near the intersection of
Cannon Road and Car Country Drive with an existing pipeline, and an approved but not yet installed
pipeline, at the planned intersection of the Cannon Road extension and “Street AA” of the proposed Kelly
Ranch project. The pump station site would be located approximately 820 feet southwest of the Cannon
Road/Street AA intersection, and 350 feet northwest of the Agua Hedionda Lagoon Nature Center. The
lift station would be above grade and in an area immediately adjacent to a dirt access road which also
serves as a public recreation trail. (See Figures 2 and 3).
Creation of a proposed, 14,000 +/- square foot, level pad area for the lift station will necessitate the
grading of a sloping, natural area and the installation of a retaining wall as high as 20 feet. It is estimated
that approximately 12,200 cubic yards of earth will be excavated as part of the grading operation. Three
different methods will be used for pipeline installation along the pipeline route. For the 850 lineal foot
segment from the Cannon/Hidden Valley Road intersection to the lift station site, which is inhabited by
native vegetation and contains wetlands, the pipeline will be installed via micro tunneling. For the 2,450
lineal foot segment which is also inhabited by native vegetation, contains wetlands, and spans from the
pump station site to a spot along the outside edge of an agricultural area, the pipeline will be installed via
directional drill. The micro tunneling and directional drilling technology both will involve minimal
disruption to surface topography and vegetation. For the remaining 2,650 lineal foot segment through the agricultural area to the Cannon Road Car County Drive intersection, the pipeline would be installed via
the conventional, open trenching method. A more detailed project description and description of the
environmental setting is included in the Discussion of Environmental Evaluation section.
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SUMMARY OF ENVIRONMENTAL FACTORS POTENTIALLY AFFECTED:
The summary of environmental factors checked below would be potentially affected by this project,
involving at least one impact that is a “Potentially Significant Impact,” or “Potentially Significant Impact
Unless Mitigation Incorporated” as indicated by the checklist on the following pages.
H Land Use and Planning TransportatiodCirculation 17 Public Services
[7 Population and Housing (XI Biological Resources 0 Utilities & Service systems
B Geological Problems 0 Energy & Mineral Resources (XI Aesthetics
H water Hazards B Cultural Resources
Air Quality 0 Noise Recreation
0 Mandatory Findings of Significance
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DETERMINATION.
(To be completed by the Lead Agency)
I find that the proposed project COULD NOT have a significant effect on the
environment, and a NEGATIVE DECLARATION will be prepared.
B I find that although the proposed project could have a significant effect on the
environment, there will not be a significant effect in this case because the mitigation
measures described on an attached sheet have been added to the project. A MITIGATED
NEGATIVE DECLARATION will be prepared.
I u I find that the proposed project MAY have a significant effect on the environment, and an
ENVIRONMENTAL IMPACT REPORT is required.
I u I find that the proposed project MAY have significant effect(s) on the environment, but at
least one potentially significant effect 1) has been adequately analyzed in an earlier
document pursuant to applicable legal standards, and 2) has been addressed by mitigation
measures based on the earlier analysis as described on attached sheets. An is required,
but it must analyze only the effects that remain to be addressed.
I find that although the proposed project could have a significant effect on the
environment, there WILL NOT be a significant effect in this case because all potentially
significant effects (a) have been analyzed adequately in an earlier pursuant to applicable
standards and (b) have been avoided or mitigated pursuant to that earlier, including
revisions or mitigation measures that are imposed upon the proposed project. Therefore,
a Notice of Prior Compliance has been prepared.
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Date
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Date
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ENVIRONMENTAL IMPACTS
STATE CEQA GUIDELINES, Chapter 3, Article 5, Section 15063 requires that the City
conduct an Environmental Impact Assessment to determine if a project may have a significant
effect on the environment. The Environmental Impact Assessment appears in the following
pages in the form of a checklist. This checklist identifies any physical, biological and human
factors that might be impacted by the proposed project and provides the City with information to
use as the basis for deciding whether to prepare an Environmental Impact Report (EIR), Negative
Declaration, or to rely on a previously approved EIR or Negative Declaration.
e A brief explanation is required for all answers except “No Impact” answers that are
adequately supported by an information source cited in the parentheses following each
question. A “No Impact” answer is adequately supported if the referenced information
sources show that the impact simply does not apply to projects like the one involved. A
“No Impact” answer should be explained when there is no source document to refer to, or
it is based on project-specific factors as well as general standards.
e “Less Than Significant Impact” applies where there is supporting evidence that the
potential impact is not adversely significant, and the impact does not exceed adopted
general standards and policies.
e “Potentially Significant Unless Mitigation Incorporated” applies where the incorporation
of mitigation measures has reduced an effect from “Potentially Significant Impact” to a
“Less Than Significant Impact.” The developer must agree to the mitigation, and the
City must describe the mitigation measures, and briefly explain how they reduce the
effect to a less than significant level.
e “Potentially Significant Impact” is appropriate if there is substantial evidence that an
effect is significant.
e Based on an “EIA-Part 11”, if a proposed project could have a potentially significant
effect on the environment, but & potentially significant effects (a) have been analyzed
adequately in an earlier EIR or Mitigated Negative Declaration pursuant to applicable
standards and (b) have been avoided or mitigated pursuant to that earlier EIR or Mitigated
Negative Declaration, including revisions or mitigation measures that are imposed upon
the proposed project, and none of the circumstances requiring a supplement to or
supplemental EIR are present and all the mitigation measures required by the prior
environmental document have been incorporated into this project, then no additional
environmental document is required (Prior Compliance).
e When “Potentially Significant Impact” is checked the project is not necessarily required
to prepare an EIR if the significant effect has been analyzed adequately in an earlier EIR
pursuant to applicable standards and the effect will be mitigated, or a “Statement of
Overriding Considerations” has been made pursuant to that earlier EIR.
e A Negative Declaration may be prepared if the City perceives no substantial evidence that
the project or any of its aspects may cause a significant effect on the environment.
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0 If there are one or more potentially significant effects, the City may avoid preparing an
EIR if there are mitigation measures to clearly reduce impacts to less than significant, and
those mitigation measures are agreed to by the developer prior to public review. In this
case, the appropriate “Potentially Significant Impact Unless Mitigation Incorporated”
may be checked and a Mitigated Negative Declaration may be prepared.
An EIR must be prepared if “Potentially Significant Impact” is checked, and including
but not limited to the following circumstances: (1) the potentially significant effect has
not been discussed or mitigated in an Earlier EIR pursuant to applicable standards, and
the developer does not agree to mitigation measures that reduce the impact to less than
significant; (2) a “Statement of Overriding Considerations” for the significant impact has
not been made pursuant to an earlier EIR; (3) proposed mitigation measures do not reduce
the impact to less than significant, or; (4) through the EIA-Part I1 analysis it is not
possible to determine the level of significance for a potentially adverse effect, or
determine the effectiveness of a mitigation measure in reducing a potentially significant
effect to below a level of significance.
A discussion of potential impacts and the proposed mitigation measures appears at the end of the
form under DISCUSSION OF ENVIRONMENTAL EVALUATION. Particular attention
should be given to discussing mitigation for impacts which would otherwise be determined
significant.
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Issues (and Supporting Information Sources).
I. LAND USE AND PLANNING. Would the proposal:.
a) Conflict with general plan designation or zoning?
(Source #(s): (#l, #2, #3, #6:Pgs 5.6-1 - 5.6-18, #7,
b) Conflict with applicable environmental plans or
policies adopted by agencies with jurisdiction over the
project? (#2, #3, #5, #6:Pgs 5.6-1 - 5.6-18, #7, #8, #9,
#lo, #11, #14, #16)
c) Be incompatible with existing land use in the vicinity?
d) Affect agricultural resources or operations (e.g. impacts
to soils or farmlands, or impacts from incompatible
land uses? (#l, #6:Pgs 5.6-1 - 5.6-18, #7, #8, #9, #lo,
e) Disrupt or divide the physical arrangement of an
established community (including a low-income or
minority community)? (#6:Pgs 5.6-1 - 5.6-18, #7, #lo,
#lo, #11)
(#2, #3, #5, #6:Pg~ 5.6-1 - 5.6-18, #7, #lo, #11, #12)
#11, #12)
#11, #12)
Potentially
Significant Impact
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11. POPULATION AND HOUSING. Would the proposal:
a) Cumulatively exceed official regional or local
population projections? (#2, #3, #5, #6:Pgs 5.5-1 - 5.5-
6, #lo, #11)
b) Induce substantial growth in an area either directly or
indirectly (e.g. through projects in an undeveloped area
or extension of major infrastructure)? (#2, #3, #6:Pgs
c) Displace existing housing, especially affordable
0 0 OH
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0 0 OH 5.5-1 - 5.5-6, #7, #11, #12)
housing? (#6:Pgs 5.5-1 - 5.5-6, #7 #11)
111. GEOLOGIC PROBLEMS. Would the proposal result in or
expose people to potential impacts involving:
a) Fault rupture? (#2, #3, #6:Pgs 5.1-1 - 5.1-15, #lo, #11,
#13)
b) Seismic ground shaking? (#2, #3, #6:Pgs 5.1-1 - 5.1-
15, #lo, #11, #13)
c) Seismic ground failure, including liquefaction? (#2, #3,
d) Seiche, tsunami, or volcanic hazard? (#6:Pgs 5.1-1 -
e) Landslides or mudflows? (#2, #3, #6:Pgs 5.1-1 - 5.1-
15, #lo, #11, #13)
f) Erosion, changes in topography or unstable soil
conditions from excavation, grading, or fill? (#l, #2,
#3, #6:Pgs 5.1-1 - 5.1-15, #lo, #11, #13, #14)
g) Subsidence of the land? (#2, #3, #6:Pgs 5.1-1 - 5.1-15,
#lo, #11, #13)
h) Expansive soils? (#2, #3, #6:Pgs 5.1-1 - 5.1-15, #lo,
#11, #13)
i) Unique geologic or physical features? (#2, #3, #5,
#6:Pg~ 5.1-1 - 5.1.15, #lo, #11, #13)
5.1-15, #lo)
#6:Pg~ 5.1-1 - 5.1-15, #11, #13, #17)
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IV. WATER. Would the proposal result in:
a) Changes in absorption rates, drainage patterns, or the
rate and amount of surface runoff! (#2, #3, #5, #6:Pgs
b) Exposure of people or property to water related hazards
such as flooding? (#6:Pgs 5.2-1 - 5..2-11)
c) Discharge into surface waters or other alteration of
surface water quality (e.g. temperature, dissolved
oxygen or turbidity)? (#l, #5, #6:Pgs 5.2-1 - 5..2-11,
#13, #14)
d) Changes in the amount of surface water in any water
e) Changes in currents, or the course or direction of water
movements? (#I, #2, #3, #5, #6:Pgs 5.2-1 - 5..2-11,
#13) 0 Changes in the quantity of ground waters, either
through direct additions or withdrawals, or through
interception of an aquifer by cuts or excavations or
through substantial loss of groundwater recharge
capability? (#l, #2, #3, #5, #6:Pgs 5.2-1 - 5..2-11, #IO,
#11, #13)
g) Altered direction or rate of flow of groundwater? (#l,
h) Impacts to groundwater quality? (#l, #5, #6:Pgs 5.2-1 -
5..2-11, #7, #13, #14)
i) Substantial reduction in the amount of groundwater
otherwise available for public water supplies? (#l, #5,
5.2-1 - 5..2-11, #lo, #11, #13, #14)
body? (#l, #2, #5, #6:Pgs 5.2-1 - 5..2-11, #11, #13)
#2, #3, #5, #6:Pgs 5.2-1 - 5..2-11, #lo, #11, #13, #14)
#6:Pgs 5.2-1 - 5..2-11, #13, #14)
V. AIR QUALITY. Would the proposal:
a) Violate any air quality standard or contribute to an
existing or projected air quality violation? (#l, #5,
b) Expose sensitive receptors to pollutants? (#l, #3, #5,
#6:Pgs 5.3-1 - 5.3-12, #13)
c) Alter air movement, moisture, or temperature, or cause
any change in climate? (#l, #6:Pgs 5.3-1 - 5.3-12)
d) Create objectionable odors? (#l, #6:Pgs 5.3-1 - 5.3-12,
#13)
#6:Pgs 5.3-1 - 5.3-12, #13, #17)
VI. TRANSPORTATION/CIRCULATION. Would the
a) Increased vehicle trips or traffic congestion? (#l,
b) Hazards to safety from design features (e.g. sharp
curves or dangerous intersections) or incompatible uses
(e.g. farm equipment)? (#6:Pgs 5.7-1 - 5.7.22)
c) Inadequate emergency access or access to nearby uses?
d) Insufficient parking capacity on-site or off-site? (#l,
e) Hazards or barriers for pedestrians or bicyclists? (#l,
f) Conflicts with adopted policies supporting alternative
transportation (e.g. bus turnouts, bicycle racks)? (#l,
#6:Pgs 5.7-1 - 5.7.22, #11)
g) Rail, waterborne or air traffic impacts? (#l, #6:Pgs 5.7-
proposal result in:
#6:Pgs 5.7-1 - 5.7.22, #lo)
(#6:Pgs 5.7-1 - 5.7.22, #IS)
#6:Pgs 5.7-1 - 5.7.22, #13)
#6:Pgs 5.7-1 - 5.7.22, #lo, #11, #13)
1 - 5.7.22, #11, #13)
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VII. BIOLOGICAL RESOURCES. Would the proposal result
in impacts to:
a) Endangered, threatened or rare species or their habitats
(including but not limited to plants, fish, insects,
animals, and birds? (#6:Pgs 5.4-1 - 5.4-24)
b) Locally designated species (e.g. heritage trees)?
c) Locally designated natural communities (e.g. oak
forest, coastal habitat, etc.)? (#6:Pgs 5.4-1 - 5.4-24)
d) Wetland habitat (e.g. marsh, riparian and vernal pool)?
e) Wildlife dispersal or migration corridors? (#6:Pgs 5.4-1
(#6:Pgs 5.4-1 - 5.4-24)
(#6:Pg~ 5.4-1 - 5.4-24)
- 5.4-24)
VIII. ENERGY AND MINERAL RESOURCES. Would the
a) Conflict with adopted energy conservation plans? (#l,
proposal?
#6:Pg~ 5.12.1-1 - 5.12.1-5 & 5.13-1 - 5.13-9, #7, #lo,
#11, #13)
b) Use non-renewable resources in a wasteful and
inefficient manner? (#l, #6:Pgs 5.12.1-1 -5.12.1-5 &
c) Result in the loss of availability of a known mineral
resource that would be of future value to the region and
the residents of the State? (#l, #6:Pgs 5.12.1-1 - 5.12.1-
5 & 5.13-1 - 5.13-9, #7, #lo, #11)
5.13-1 - 5.13-9, #7, #lo, #11)
IX. HAZARDS. Would the proposal involve:
a) A risk of accidental explosion or release of hazardous
substances (including, but not limited to: oil, pesticides,
chemicals or radiation)? (#l, #5, #6:Pgs 5.10.1-1 -
b) Possible interference with an emergency response plan
or emergency evacuation plan? (#6:Pgs 5.10.1- 1 -
c) The creation of any health hazard or potential health
d) Exposure of people to existing sources of potential
e) Increase fire hazard in areas with flammable brush,
5.10.1-5, #13, #14)
5.10.1-5)
hazards? (#l, #5, #6:Pgs 5.10.1-1 - 5.10.1-5, #13, #14)
health hazards? (#6:Pgs 5.10.1-1 - 5.10.1-5)
grass, or trees? (#l, #6:Pgs 5.10.1-1 - 5.10.1-5)
X. NOISE. Would the proposal result in:
a) Increases in existing noise levels? (#l, #6:Pgs 5.9-1 -
b) Exposure of people to severe noise levels? (#l, #6:Pgs
5.9-15, #7, #11)
5.9-1 - 5.9-15, #7, #11)
XI. PUBLIC SERVICES. Would the proposal have an effect
upon, or result in a need for new or altered government
services in any of the following areas:
a) Fire protection? (#6:Pgs 5.12.5-1 - 5.12.5-6)
b) Police protection? (#6:Pgs 5.12.6-1 - 5.12.6-4)
C) Schools? (#6:Pg~ 5.12.7.1 - 5.12.7-5)
d) Maintenance of public facilities, including roads? (#l,
#2, #lo)
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e) Other governmental services? (#6:Pgs 5.12.1-1 -
5.12.8-7) 0 nIx1
XII.UTILITIES AND SERVICES SYSTEMS. Would the
proposal result in a need for new systems or supplies,
or substantial alterations to the following utilities:
a) Power or natural gas? (#l, #6:Pgs 5.12.1-1 - 5.12.1-5 &
5.13-1 - 5.13-9. #11) 0 0 UIXI
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c)
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f)
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Communications systems? (#l, #6, #11)
Local or regional water treatment or distribution
facilities? (#l, #6:Pgs 5.12.2-1 - 5.12.3-7, #11)
Sewer or septic tanks? (#6:Pgs 5.12.3-1 - 5.12.3-7)
Storm water drainage? (#6:Pg 5.2-8)
Solid waste disposal? (#6:Pgs 5.12.4-1 - 5.12.4-3)
Local or regional water supplies? (#6:Pgs 5.12.2-1 -
5.12.3-7)
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XIII. AESTHETICS. Would the proposal:
a) Affect a scenic or vista or scenic highway? (#6:Pgs
b) Have a demonstrated negative aesthetic effect? (#6:Pgs
c) Create light or glare? (#6:Pgs 5.11-1 - 5.11-5)
5.11-1 - 5.11-5) 0 [XI on
5.11-1 - 5.11-5) 0 IxI on
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XIV. CULTURAL RESOURCES. Would the proposal:
a) Disturb paleontological resources? (#6:Pgs 5.8-1 - 5.8-
b) Disturb archaeological resources? (#6:Pgs 5.8-1 - 5.8-
c) Affect historical resources? (#6:Pgs 5.8-1 - 5.8-10)
d) Have the potential to cause a physical change which
would affect unique ethnic cultural values? (#2, #6:Pgs
e) Restrict existing religious or sacred uses within the
1 0)
10)
5.8-1 - 5.8-10)
potential impact area? (#2, #6:Pgs 5.8-1 - 5.8-10)
XV. RECREATIONAL. Would the proposal:
a) Increase the demand for neighborhood or regional
parks or other recreational facilities? (#6:Pgs 5.12.8-1 -
b) Affect existing recreational opportunities? (#6:Pgs
5.12.8-7)
5.12.8-1 - 5.12.8-7)
XVI. MANDATORY FINDINGS OF SIGNIFICANCE.
a) Does the project have the potential to degrade the
quality of the environment, substantially reduce the
habitat of a fish or wildlife species, cause a fish or
wildlife population to drop below self-sustaining levels,
threaten to eliminate a plant or animal community,
reduce the number or restrict the range of a rare or
endangered plant or animal or eliminate important
examples of the major periods of California history or
prehistory?
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b) Does the project have impacts that are individually
limited, but cumulatively considerable? 0 I7
(“Cumulatively considerable” means that the
incremental effects of a project are considerable when
viewed in connection with the effects of past projects,
the effects of other current projects, and the effects of
probable future projects)?
c) Does the project have environmental effects which will
cause the substantial adverse effects on human beings, 17 0
either directly or indirectly?
0 la
la
XVII. EARLIER ANALYSES.
Earlier analyses may be used where, pursuant to the tiering, program EIR, or other CEQA
process, one or more effects have been adequately analyzed in an earlier EIR or negative
declaration. Section 15063(c)(3)(D). In this case a discussion should identify the
following on attached sheets:
a) Earlier analyses used. Identify earlier analyses and state where they are available
for review.
b) Impacts adequately addressed. Identify which effects from the above checklist
were within the scope of and adequately analyzed in an earlier document pursuant
to applicable legal standards, and state whether such effects were addressed by
mitigation measures based on the earlier analysis.
c) Mitigation measures. For effects that are “Less than Significant with Mitigation
Incorporated,“ describe the mitigation measures which were incorporated or
refined from the earlier document and the extent to which they address site-
specific conditions for the project.
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DISCUSSION OF ENVIRONMENTAL EVALUATION
Project Description
The project is an addition to the City’s wastewater collection system and is generally located in
the northwest section of the City of Carlsbad. (See Figure 1 - Regional Setting). More
specifically, the project involves the construction and operation of an interceptor sewer main and
lift station connecting segments of the South Agua Interceptor Sewer in Cannon Road and across
Macario Canyon (See Figure 2 - Project Location). Connecting segments of the sewer to the east
and west are constructed or will be constructed as part of previously approved projects in the
right-of-way of Cannon Road.
The proposed project is a modification to an existing approved project, which includes
supporting environmental documentation, for a segment of the South Agua Hedionda Interceptor
Sewer System in Reach SAH3 of the City of Carlsbad (EIRs 87-02, 83-4A, 83-04). Earlier
documents considered installation of a 30-inch sewer pipeline from El Camino Real running
westward in the routes of Cannon Road and Hidden Valley Road and across Macario Canyon at
its mouth near Agua Hedionda Lagoon. The pipeline would continue along the south margin of
the lagoon for about 1,800 feet, then turn away from the lagoon and up the slope south of the
lagoon into the agricultural fields south of the lagoon and continue to rejoin Cannon Road east of
Paseo del Norte. The sewer would continue westward in Cannon Road to connect with a trunk
line west of Interstate 5 (1-5). The sewer interceptor would be a gravity line from El Camino
Real to Macario. A lift station was proposed either east or west of Macario Canyon, and the
interceptor from the lift station west would be a force main.
The earlier project was reevaluated by CMWD for the present proposal. The reevaluation
included several alternatives including lift station location alternatives and methods of
constructing the pipelines. The presently proposed project was chosen because, of all the
alternatives evaluated, it would have the smallest degree of impact on biological resources and
would avoid any impacts to wetlands associated with the lagoon.
L$t Station
The lift station would be east of the mouth of Macario Canyon on the southern border of Agua
Hedionda Lagoon, in an upland area adjacent to the lagoon wetlands (see Figure 3).
Construction access to the site and access to the completed lift station would be by way of
Hidden Valley Road from the Hidden Valley Roadcannon Road junction. The access road
would be paved and would be in the present location of a dirt access roadpublic recreation trail,
which is on an existing dike in the lagoon wetlands. The grading for the lift station would not
extend toward the lagoon wetlands beyond the existing bare area of Hidden Valley Road, and a
retaining wall on the upland side of the lift station site would be included to limit impacts to
upland vegetation.
The lift station would have an initial peak capacity of 3.0 mgd. A lift station of that size would
require the following:
0 A below-ground, reinforced concrete dry welVwet well approximately 45 feet long by 35 feet
wide.
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An above-ground electrical and standby generator building as tall as 26 feet with maximum
dimensions of 60 by 40 feet.
An above-ground odor-control facility mounted on a reinforced concrete pad about 30 feet
long and 20 feet wide, including on-site space for chemical storage tanks.
An above-ground SDG&E transfonner/service meter on a concrete pad about 10 feet square.
Equipment for chemical addition will be added for control of downstream force main odor.
Gravity Sewer Main to L$t Station
The gravity main from Cannon Road to the pump station would be constructed by
microtunneling in approximately a straight line from a working pit in the Cannon Road
alignment to a receiving pit at the lift station. The 24-inch-diameter pipeline would be under the
area of lagoon wetland east of the Hidden Valley Road dike. Microtunneling is a trenchless
technology in which the pipeline is constructed between a working pit and a another working pit,
or a “receiving” pit without disturbing the ground surface. The working pit would be about 30
feet by 50 feet and would be entirely within the area to be disturbed by construction of the lift
station. The receiving pit would be about 20 feet by 20 feet. If Cannon Road is not constructed
when the sewer main is constructed, the jacking pit would be in the proposed traveled way of
Cannon Road. If Cannon Road is constructed, the jacking pit would be in the right-of-way of
Cannon Road, outside the paved traveled way. The receiving pit will be filled in when
construction of the pipeline is complete.
Force Main Westerly from Lift Station
From the lift station location westerly under the lagoon wetlands and up the slope south of the
lagoon into the agricultural upland area, the force main would be constructed by directional
dnlling. Like microtunneling, directional drilling is a trenchless technology in which a boring
machine drills below the surface from a working pit to another working pit or a pit. At the
receiving pit, pipe is laid out and then pulled through the bore. For the force main, the jacking
pit, about 60 feet by 60 feet in area, would be located in the agricultural field approximately
2,700 feet west of the lift station site. The pipe layout string would be in the alignment of
Cannon Road and Hidden Valley Road. Two 18-inch-diameter pipelines would be pulled
through the bore. One pipeline would be the functioning force main, the other would be an
emergency backup in case of failure of the first. From the jacking pit westerly, the pipeline
would be constructed as a single 18-inch-diameter force main in an open trench through the
agricultural fields and in the alignment of Cannon Road, now under construction in this area.
Construction Phasing
Construction would begin with the excavation of the dnlling and jacking pits, microtunneling
and directional drilling, and installation of those segments of the pipelines. Hidden Valley Road
across the dike from Cannon Road to the lift station site would be used for construction access to
the lift station site. With the pipelines to and from the lift station in place, the receiving pits
would be filled in, and the open-trench pipeline on the west and the lift station would be
constructed. Once all the pipelines are installed and the working pits have been filled
construction of the lift station would begin. Total construction time is expected to be a
maximum of 18 months.
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Related Projects
Related City of Carlsbad projects include the construction of Cannon Road from just east of Car
Country Drive to the east side of Macario Canyon, including the bridge across Macario Canyon
(Reach I). Construction of Reach 1 has begun. The force main in Cannon Road to the west is
included in the Reach 1 project. Also, as part of development plans for Kelly Ranch, Cannon
Road is being constructed from the east side of Macario Canyon to El Camino Real (Reach 2).
The gravity sewer line from an existing sewer in El Camino Real to the junction of Hidden
Valley Road with Cannon Road is included in that project.
Environmental Impact Discussion
I. Land Use and Planning
b) The project is located within the Agua Hedionda Lagoon section of the City’s Coastal Zone.
For projects in this section, the California Coastal Commission has retained responsibility for
determining compliance with the City’s Local Coastal Program (LCP) and permitting
authority. Since the City does not have permitting authority in this instance and, as a result,
has not determined LCP compliance, a potential for significant impact may exist unless
mitigation is incorporated. A mitigation measure has been incorporated into the project
which involves a requirement that the project receive approval of the California Coastal
Commission for a Coastal Development Permit, where LCP compliance would be
determined prior to the issuance of any City-issued Notice to Proceed.
c) The project is located in an area of special visual and environmental significance. Important
environmental resources, the Agua Hedionda Lagoon Nature Center, and a public recreation
trail are all in close proximity to the project site. Installation of lift station and pipelines are a
potentially incompatible land use, unless mitigation is incorporated. A number of mitigation
measures relating to geology, hydrology, biology, cultural resources, and aesthetics are
addressed and discussed in the following sub-sections of this checklist and have been
incorporated into the project. Additional mitigation involves requiring the project to
complete the City’s conditional use and hillside development permitting process where,
through discretionary review by the Planning Commission at a public hearing, additional
project conditions, beyond identified mitigation measures, may be required to make the
project more compatible with surrounding uses.
d) A portion of the pipeline is proposed to bisect existing agricultural lands. Agricultural
resources will be temporarily impacted as a result of pipeline installation. Impacts are only
temporary since the earth above the underground pipelines, which is of an adequate depth,
will not be precluded from agricultural use.
111. Geology
f) The lift station component of the project will involve the excavation of approximately 12,200
cubic yards of earth, the creation of some manufactured slope area, and the installation of
retaining walls as high as 20 feet. Such activity and installations will alter topography and
could cause erosion unless mitigated. Mitigation measures have been incorporated into the
project requiring compliance with the City’s erosion control and National Pollution
Discharge Elimination System (NPDES) standards which will be ensured through the City’s
planchecking process. Additionally, erosion and visual impact issues will be hrther
13 Rev. 03/28/96
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addressed through the City’s hillside development permitting process where compliance with
the City’s hillside development standards will be ensured, which is also a mitigation measure
for the project.
The project also involves the installation of approximately 5,950 lineal feet of pipeline which
can alter topography and cause erosion, unless mitigated. More than half, or 3,300 lineal
feet, of the total lineal feet proposed would be through environmentally sensitive, natural
open space areas. To mitigate potential impacts for this portion of pipeline route, installation
of pipeline will be conducted via “directional drilling” or “micro tunneling”. These methods
are trenchless technologies which involve minimal disruption to surface topography and
vegetation and result in minimal soil erosion. A mitigation measure has been incorporated
into the project accordingly.
The remaining portion of pipeline is proposed through a relatively flat agricultural area. As
such, alteration of topography along this portion of the pipeline route will be minimal. A
potential for soil erosion does exist, however, and can be mitigated through adherence with
the City’s erosion control and NPDES standards, which are required of the project and will
be ensured through the City’s plan checking process.
The creation of “working pits” for pipeline installation are proposed idon the agricultural
area, the pump station site, or the Cannon Road construction site. Therefore, no additional
impacts are expected, and no additional mitigation measures are needed, beyond those
identified within this sub-section.
IV. Water
a) Since the pipelines are proposed to be installed underground, increased runoff or changes in
drainage patterns are not expected with the pipeline component of the project. Installation of
impervious surfaces associated with the pump station component (i.e. a building enclosure
and paved areas for parking and access), however, will result in decreased absorption rates
and increased run off as measured against existing conditions. Given the relatively small size
of the area and that the project will comply with City erosion control and NPDES standards,
however, the impacts are expected to be less than significant.
c) Potential soil erosion resulting from project construction and potential failure of the lift
stationhewage spills could impact surface waters and water quality, particularly in the Agua
Hedionda Lagoon. As indicated in the above sub-sections, potential soil erosion can be
mitigated through adherence with the City’s erosion control and NPDES standards, which are
required of the project and will be ensured through the City’s plan checking process.
With regard to potential lift station failure and sewage spills, the project has incorporated a
number of design features specifically to address this issue. They include features such as
back-up pumps, emergency generators, and alarm systems. Additional mitigation is desired
and involves the submittal of report which outlines, in detail, project design features, as well
as operation measures, which will be incorporated into the project design and its operation
which ensure that pump failure will not result in impacts to water resources.
f) Groundwater is relatively near the surface in the vicinity of the lagoon. Excavation for the
working pits and for the lift station could encounter groundwater. If so, dewatering of the
construction area may be required, which could result in impacts unless mitigated. A
mitigation measure has been incorporated into the project which requires a permit from the
14 Rev. 03/28/96
* * Regional Water Quality Control Board (RWQCB), through which conditions will be
designed by the RWQCB to prevent excessive dewatering and adverse water quality effects
on groundwater.
h) See responses to sub-sections IV c and f .
V. Air Quality
a) The lift station will operate on electricity. In case of power failure, however, a backup
generator will be used which is powered by an internal combustion engine. Its use will
require a permit from the San Diego Air Pollution Control District where it will be ensured
that the project meets all federal, state, and local air quality regulations. Therefore, impacts
are expected to be less than significant.
d) The project does not involve sewage treatment. It does, however, involve sewage
conveyance and could result in the creation of a relatively minor degree of objectionable odor
as it passes through the lift station. Even though the lift station is remotely located it is
immediately adjacent to a public trail and near the Agua Hedionda Lagoon Nature Center,
and prevailing winds could carry odors towards planned residential uses to the west and
southwest of the project site. Mitigation has been incorporated into the project design and
involves the full enclosure of the lift station within a structure, and the use of chemical
treatment to minimize odors. Additional mitigation is desired and involves the submittal of
report which outlines, in detail, project design features or treatments, as well as operation
measures, which will be incorporated into the project design and its operation which ensure
that objectionable odors will be controlled.
VII. Biological Resources
a) Based on a biological technical report prepared for the project, clearing for construction of
the lift station would impact coastal sage scrub, valley needle grass and non-native
grasslands. Approximately 0.45 acre of Diegan coastal sage scrub will be impacted which is
known habitat for the coastal California gnatcatcher (Polioptila californica californica), a
federally listed threatened species and a CDFG species of special concern. Mitigation at a
ratio of 2:l is required for impacts to the subject area, which is considered occupied habitat.
Additionally, the project would affect foraging habitat for the white-tailed kite (Elanus
leucurus), which was observed foraging over the coastal sage scrub and coastal salt marsh
habitats on the project site, and native and non-native grassland. The white-tailed kite is a
California fully protected species.
Overall, the project will affect 0.45 acre of coastal sage scrub, 0.1 1 acre of valley needlegrass
grassland, and 0.1 1 acre of nonnative grassland. Mitigation measures for impacts to these
species and their habitats have been incorporated into the project. They include requirements
for the restoration and/or preservation of similar habitat, at appropriate ratios, on- or off-site;
clearances from the US Fish and Wildlife Service and the State of California Department of
Fish and Game; the presence of an on-site biologist during construction, and other measures.
It is envisioned that mitigation for impacts to coastal sage scrub will be achieved on-site or
immediately adjacent, through restoration of a non-native grasslands area to coastal sage
scrub adjacent to the pump station site. For impacts to valley needle grass and non-native
grasslands, mitigation would be achieved through restoration and or preservation of lands in
the Lake Calavera Mitigation Bank.
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Southern coastal salt marsh in the lagoon wetlands is habitat for Belding’s savannah sparrow
(Passerculus sandwichensis beldingi), which is listed by CDFG as endangered. The
proposed project would not affect any habitat for this species.
As indicated earlier, more than half, or 3,300 lineal feet, of the total lineal feet of proposed
pipeline would be through environmentally sensitive, natural and sloping open space areas.
To mitigate potential impacts for this portion of pipeline route, installation of pipeline will be
conducted via “directional drilling” or “micro tunneling”. These methods are trenchless
technologies which involve minimal disruption to surface topography and vegetation. A
mitigation measure has been incorporated into the project, accordingly.
b) The City of Carlsbad’s Habitat Management Plan for Natural Communities identifies valley
needle grass and non-native grasslands as locally important natural resources. The project
will result in he disruption of these areas and will need to be mitigated. See discussion in
sub-section VI1 a.
c) See discussion in sub-sections VI1 a and b.
d) As indicated earlier, the project will involve the installation of approximately 3,300 lineal
feet of pipeline through environmentally sensitive natural open space areas, some of which
are wetlands. In evaluation of project alternatives (which included alternatives such as the
use of open trenching for pipeline installation along the entire pipeline route) the CMWD
selected a pipeline installation technique which was the least impacting to the environment,
the wetlands area in particular. To mitigate potential impacts for this portion of pipeline
route, installation of pipeline will be conducted via “directional drilling” or “micro
tunneling”. These methods are trenchless technologies which involve minimal disruption to
surface topography and vegetation. A mitigation measure has been incorporated into the
project accordingly.
e) The project area has high value as a wildlife movement corridor. However, the project is
primarily underground (i.e. the pipelines), creates a relatively small area of permanent
impacts, and involves a relatively low level of activity once construction is completed.
Therefore, impacts are considered to be less than significant.
IX. Hazards
a) The potential failure of the lift station could result in the release of hazardous material (i.e.
untreated sewage) into the environment which could adversely impact public health, unless
mitigated. Mitigation measures have been incorporated into the project. See discussion in
sub-section IV c.
c) See sub-section IV c for discussion.
XII. Utilities and Service Systems
c) The project will provide for the conveyance of sewage to the Encina Waste Water treatment
facility which serves the City of Carlsbad and surrounding areas. The sewage conveyed via
the proposed project is not expected to significantly impact the Encina Watewater Treatment
facility since Encina has been designed to accommodate increased flows.
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XIII. Aesthetics
a) The project is located in a natural open space area adjacent to the Agua Hedionda Lagoon,
which is considered to exhibit high scenic quality. Aspects of the project possess the
potential to adversely impact important scenic vistas and/or have a negative aesthetic effect,
unless mitigated. Pipelines associated with the project will be installed under ground and
therefore are not expected to have a long term adverse visual impact. The lift station
site/structure, however, will be visible from important public areas such as the Agua
Hedionda Lagoon Nature Center and a public recreational trail and certain public streets.
Mitigation has been incorporated into the project and involves 1) enclosure of the lift station
with a structure 2) the use of appropriate exterior building materials and/or finishes which
would assist in blending the installation in with the surrounding natural environment, 3)
creation of an earthen screening berm in the area between the pump station site and the public
trail and 4) installation of perimeter native landscaping materials to assist in screening.
b) See response XI11 a.
XIV. Cultural Resources
a) The Cannon Road Reach 1 Final Environmental Impact Report, or the Cannon Road FEIR,
indicates that significant fossils may be present in late Eocene-age Santiago Formation and
late Pleistocene-age marine terrace and beach deposits in the project area. Mitigation
measures were identified in the Cannon Road FEIR, which will reduce impacts to a less than
significant level. Previously identified mitigation measures have been incorporated into the
proj ec t .
b) The Cannon Road FEIR identified the location of a significant cultural resource sites in the
project vicinity. The proposed sewer line could potentially impact the margin of site SDM-
W-126, unless mitigated. Mitigation measures, identified in the Cannon Road FEIR, will
reduce impacts to a less than significant level. Previously identified mitigation measures have
been incorporated into the project.
EARLIER ANALYSES USED
The following documents were used in the analysis of this project and are on file in the City of
Carlsbad Planning Department located at 1635 Faraday Avenue, Carlsbad, California, 92008,
(760) 602-46 19.
1. Carlsbad Municipal Water District Facility Engineering Design Plans, Exhibits 1,2,5 and 6.
2. Final Environmental Impact Report for Reach 1 of Cannon Road in the City of Carlsbad EIR
87-02, SCH No. 83042707 (City of Carlsbad 1989).
3. Final Supplemental Environmental Impact Report for a Segment of the South Agua Hedionda
Sewer Interceptor System in the City of Carlsbad EIR 83-4A, SCH No. 89010222 (City of
Carlsbad 1990).
4. Biological Technical Report for a Segment of the South Agua Hedionda Sewer Interceptor
System in the City of Carlsbad (RECON 1999).
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5. Final EIR for the Kelly Ranch General Plan Amendment and Zone Change, EIR 83-04, SCH
No. 83042707 (City of Carlsbad 1984).
6. Final Master Environmental Impact Report for the City of Carlsbad General Plan Update,
EIR 93-01, SCH No. 93091080 (City of Carlsbad 1993).
7. City of Carlsbad General Plan Land Use Element (1983) and Zoning Code (1983 as
amended), (City of Carlsbad 1983).
8. Draft Habitat Management Plan (HMP) for Natural Communities in the City of Carlsbad
(City of Carlsbad 1999).
9. Multiple Habitat Conservation Program (MHCP) - Biological Goals, Standards, and
Guidelines for Multiple Habitat Preserve Design (City of Carlsbad 1998).
10. City of Carlsbad Local Coastal Program (LCP)/Technical Support Papers addressing
Geologic Hazards, Public Works, Agriculture, etc. (City of Carlsbad 1980).
11. City of Carlsbad Local Coastal Program (LCP) - Agua Hedionda Land Use Plan (LUP). (City
of Carlsbad 1982).
12. Coastal Development Permit for the Kelly Ranch , March 19, 1985. Staff Report Special
Condition No. 1 re: permitted underground easements on Lot 20.
13. Engineering Study for the South Agua Hedionda Sewerage System. Wilson Engineering.
(City of Carlsbad 1989).
14. Regional Water Quality Control Plan for the San Diego Basin (9). (San Diego Regional
Water Quality Control Board, as amended October 1994).
15. Biological Resource Survey and Impact Analysis for the Installation of a Sewer Line Along
Reach 2 of Cannon Road (RECON 1989).
16. San Diego Gas & Electric letter regarding the siting of permanent structures within an electric
transmission line right-of-way (November 24, 1989).
17. USGS 7.5 Minute Topographic Map, San Luis Rey Quadrangle.
18. Letter report, Ray Fakoury of Brown & Caldwell to Randy Klaahsen of CMWD, July 25,
1998.
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LIST OF MITIGATING MEASURES (IF APPLICABLE)
1. Prior to the issuance of a City Notice to Proceed, the Carlsbad Municipal Water District
shall demonstrate to the satisfaction of the Planning Director, that approval of a Coastal
Development Permit has been received from the California Coastal Commission.
2. Prior to the issuance of a City Notice to Proceed, the Carlsbad Municipal Water District
shall receive approval of a Conditional Use Permit from the City of Carlsbad Planning
Commission. Additionally, any conditions applied to the project as part of the conditional
use permit shall be incorporated in the project to the satisfaction of the Planning Director,
prior to the issuance of a City Notice to Proceed.
3. The project shall comply with the City’s Hillside Development Guidelines. Prior to the
issuance of a City Notice to Proceed, the Carlsbad Municipal Water District shall receive
approval of a Hillside Development Permit from the City of Carlsbad Planning
Commission. Additionally, any conditions applied to the project as part of the hillside
development permit shall be incorporated in the project to the satisfaction of the Planning
Director, prior to the issuance of a City Notice to Proceed.
4. The project shall comply with the City’s grading and erosion control standards and all
National Pollution Discharge Elimination System (NPDES) standards. Prior to beginning
any construction activity, the Carlsbad Municipal Water District shall demonstrate to the
satisfaction of the City Engineer that all standards have been incorporated into the project.
5. The Carlsbad Municipal Water District shall utilize “micro tunneling”, “directional
drilling”, or other similar non-disruptive technologies when installing water pipelines
through natural vegetated open space areas.
6. The Carlsbad Municipal Water District shall obtain all the necessary clearances from the
San Diego Regional Water Quality Board and demonstrate clearance to the satisfaction of
the Planning Director, prior to the issuance of a City Notice to Proceed.
7. The project design features and operational measures for mitigation of potential system
failure and sewage spill, which are identified in the preliminary design plans, shall be
incorporated into the final design plans for the project. Prior to the issuance of a City
Notice to Proceed, the Carlsbad Municipal Water District shall submit to the Planning
Director a report which demonstrates, in detail, those project design features and
operational measures. Design features and operational measures shall be maintained for the
life of the project.
8. The project design features and operational measures for odor mitigation which are
identified in the preliminary design plans, shall be incorporated into the final design plans
for the project. Prior to the issuance of a City Notice to Proceed, the Carlsbad Municipal
Water District shall submit to the Planning Director a report which demonstrates, in detail,
those project design features and operational measures. Design features and operational
measures shall be maintained for the life of the project.
9. Lift station equipment shall be located within a fully enclosed structure. The exterior
building material and finish (i.e. roofing, siding, doors, color, etc.) of the structure shall be
of a character that blends in with the surrounding natural environment. Additionally any
other project installations including the retaining walls, any tanks or equipment enclosures,
19 Rev. 03128196
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fencing, and visible paved surface materials shall be finished with a color, and/or
comprised of a texture, which blends in with the surrounding natural environment.
Architectural elevations of the building and materials samples shall be submitted to the
Planning Director for final review and approval prior to the issuance of any City Notice to
Proceed.
10. The lift station structure and site shall be screened from public view by earth mounding and
landscaping to the maximum extent feasible and to the satisfaction of the Planning
Director. A landscaped earth mound shall be provided in the area between the lift station
site and the adjacent public trail. Landscaping shall be extended to the entire perimeter of
the lift station site where needed to assist in screening. Landscaping materials shall be a
native species, or a compatible species, and of a size to ensure maximum feasible screening
with one year of establishment. Prior to the issuance of a City Notice to Proceed, the
Carlsbad Municipal Water District shall submit detailed landscape and irrigation plans to
the Planning Director for review and final approval.
11. Prior to the issuance of a City Notice to Proceed, the Carlsbad Municipal Water District
shall obtain concurrence from the United States Department of the Interior Fish and
Wildlife of a mitigation program for impacts to coastal sage scrub and the California
coastal Gnatcathcer.
12. Mitigation of impacts to biological resources identified in the project’s Biological
Technical Report dated July 19, 1999 shall involve restoration and/or preservation of
habitat, either on- or off-site, at ratios prescribed by the USFWS and/or the City of
Carlsbad Habitat Management Plan and to the satisfaction of the Planning Director.
13. Prior to the issuance of a City Notice to Proceed, the Carlsbad Municipal Water District
shall submit documentation of any acquisition of property or open space easement for
habitat preservation purposes, to the satisfaction of the Planning Director.
14. Prior to the California Coastal Commission’s consideration of a Coastal Development
Permit for the project, the Carlsbad Municipal Water District shall submit to the State of
California Department of Fish and Game an aerial map indicating the limitdalignment of
the project and documents indicating that necessary easements have been obtained for the
project. This information shall be provided at least 1 month in advance of the CCC
meeting.
15. Prior to the issuance of a City Notice to Proceed, the Carlsbad Municipal Water District
shall submit a habitat restoration, maintenance and monitoring plan, to the satisfaction of
the Planning Director and the State of California Department of Fish and Game.
Monitoring the restoration area shall be conducted by qualified professional for a period no
less than five years from establishment of the habitat and discontinued thereafter only when
the restoration is completed to the satisfaction of the Planning Director.
16. The contract for construction of the lift station and pipelines shall specify that a qualified
biological monitor shall be employed to assure that all biological mitigation measures are
properly camed out. The biological monitor shall be on-site when limits of construction
are marked and when all initial clearing of the site is done. The biological monitor shall
carry out subsequent monitoring of construction at any time he or she may consider
monitoring to be necessary, depending on the work schedule and locations and consistent
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17.
18.
19.
20.
21.
a)
b)
c>
d)
e>
0
0 a
with the provisions of the habitat restoration, maintenance, and monitoring plan.
Limits of construction shall be flagged, staked, and fenced prior to the initiation of clearing,
brushing, or grading under the supervision of the biological monitor to the satisfaction of
the Planning Director.
Removal of any Diegan coastal sage scrub and disturbed coastal sage scrub must be
conducted and construction on the pump station site must begin outside of the breeding
season of the coastal California gnatcatcher to avoid impacting any breeding birds within
the alignment. Vegetation can be brushed between August 31 and February 14. A qualified
biological monitor must be present to insure that there are no impacts to resident birds that
use the coastal sage within the study area.
Demarcation fencing shall be examined at the beginning of each work day and its integrity
insured in all areas scheduled for construction that day.
Paving/surface materials or treatments for the northeasterly, lift station access road off shall
be subject to the final review and approval of the State of California Department of Fish
and Game and the Planning Director.
The Carlsbad Municipal Water District shall comply with all paleontological resource
mitigation measures identified in the related project Environmental Impact Report for the
Cannon Road (SCH #83042707). The mitigation measures/program components involve
the following:
The contract for construction of the project shall require that a qualified consulting
paleontologist shall be retained prior to the beginning of construction on any part of the
proposed project. The requirement for monitoring shall be noted on grading plans. All
persons involved in the paleontological monitoring of grading activities shall be approved
by the City of Carlsbad Community Services Department.
The consulting paleontologist shall attend any preconstruction-pregrading meeting to
consult with the grading and excavation contractors.
The consulting paleontologist shall be on-site full time during excavation into the Santiago
Formation if previously undisturbed. The monitoring time may be decreased at the
discretion of the paleontologist in consultation, depending on the rate of excavation, the
materials excavated, and the abundance of fossils.
In the event that fossils are discovered, the consulting paleontologist shall be authorized to
temporarily halt, direct, or divert grading to allow recovery of fossil material in a timely
manner. The paleontologist shall contact the City Community Development Services
Department at the time of discovery. The department shall concur with the salvaging
methods before construction activities are allowed to resume.
Any fossil materials collected from the site shall be cleaned, sorted, and cataloged and then
donated to an institution with a research interest in the materials, such as the San Diego
Natural History Museum. The qualified paleontologist shall be responsible for preparation
of fossils to a point of identification as defined by applicable guidelines, and submittal of a
letter of acceptance from a local qualified curation facility. The paleontologist shall record
any discovered fossil sites at the San Diego Natural History Museum.
Within six weeks of the completion of grading for the project, the consulting paleontologist
shall prepare a monitoring results report with appropriate graphics (even if negative),
analyses, and conclusions of the above program. The report shall be submitted to the City
21 Rev. 03/28/96
0 e
of Carlsbad Community Develop-ment Services Department and the San Diego Natural
History Museum.
20. The Carlsbad Municipal Water District shall comply with all archeological resource
mitigation measures identified in the related project Environmental Impact Report for the
Cannon Road (SCH #83042707). The mitigation measures/progrm. components involve
the following:
a) The contract for construction of the project shall require that a qualified consulting
archaeologist shall be retained prior to the beginning of construction on any part of the
proposed project. The consulting archaeologist shall be approved by the City of Carlsbad
Community Services Department. The consulting archaeologist shall be responsible for
implementing the following program of mitigation for potential impacts to site SDM-W-
126.
b) Preparation of a research design for approval by the CMWD. The research design should
identify important research questions pertinent to the cultural history of the Agua Hedionda
Lagoon area.
c) Hand excavation of a number of units specified in the research design. The first phase
would involve dividing each site area into a 10x1 0-meter grid; units would be excavated
within each 10x10-meter square to sample the area of intact site remaining. The second
phase would involve restratifying the site based on recovery in Phase 1 and placing
additional units in the area of highest recovery. The second phase excavations may be
additional 1x1-meter units, or larger units may be necessary if features are found during the
first phase.
d) Analysis of the results of the excavation focused towards identifying artifact attributes
which would address the investigation’s research design. This analysis would include
submittal of shell and charcoal samples for radiocarbon dating and submittal of soil
samples for faunal and floral microanalysis.
e) Preparation of a final report documenting the findings and evaluating the hypotheses
generated during the research design. Approval of the final report by the CMWD would
complete the mitigation.
ATTACH MITIGATION MONITORING PROGRAM (IF APPLICABLE)
22 Rev. 03/28/96
e 0
APPLICANT CONCURRENCE WITH MITIGATION MEASURES
THIS IS TO CERTIFY THAT I HAVE REVIEWED THE ABOVE MITIGATING
MEASURES AND CONCUR WITH THE ADDITION OF THESE MEASURES TO THE
PROJECT.
Date y /rr 100 1 Signature
23 Rev. 03/28/96
0 @
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