HomeMy WebLinkAbout2008-01-16; Planning Commission; ; EIR 04-02|ZCA 07-04|LCPA 07-06|CDP 06-04|SUP 06-02|HMPP 06-03 - CITY OF CARLSBAD DRAINAGE MASTER PLAN UPDATE|CALAVERA AND AGUA HEDIONDA CREEKSI City of Carlsbad Planning Departmen.
A REPORT TO THE PLANNIN.G COMMISSION
ItemNo.0
Application complete date: NIA
P .C. AGENDA OF: January 16, 2008 Project Planner: Scott Donnell
Project Engineer: David Hauser, Steve Jantz
SUBJECT: EIR 04-02/ZCA 07-04/LCPA 07-06/CDP 06-04/SUP 06-02/HMPP 06-03 -
CITY OF CARLSBAD DRAINAGE MASTER PLAN
UPDATE/CALA VERA AND AGUA HEDIONDA CREEKS -A request to:
(1) recommend (a) certification of a Final EIR, and (b) adoption of the Candidate
Findings of Fact and the Mitigation Monitoring and Reporting Program for the
proposed City of Carlsbad Drainage Master Plan Update and the Calavera and
Agua Hedionda Creeks project; (2) recommend approval of a Zone Code
Amendment and Local Coastal Program Amendment to amend the Zoning
Ordinance and the Local Coastal Program policies to replace references to the
Master Drainage Plan adopted in 1994 with references to the proposed City of
Carlsbad Drainage Master Plan as well as delete references to the Model Erosion
Control Ordinance and Model Grading Ordinance; and (3) approve a Coastal
Development Permit, Special Use Permit (floodplain), and Habitat Management
Plan Permit for the dredging and maintenance of portions of Agua Hedionda and
Calavera Creeks in and near the Rancho Carlsbad residential community.
I. RECOMMENDATION
That the Planning Commission (1) ADOPT Planning Commission Resolution No. 6376
RECOMMENDING CERTIFICATION of the Final EIR, EIR 04-02, and ADOPTION of the
Candidate Findings of Fact and the Mitigation Monitoring and Reporting Program; (2) ADOPT
Planning Commission Resolutions No. 6377 and 6378 RECOMMENDING APPROVAL of
ZCA 07-04 and LCPA 07-06 based on the findings contained therein; and (3) ADOPT Planning
Commission Resolutions No. 6379, 6380 and 6381 APPROVING CDP 06-04, SUP 06-02, and
HMPP 06-03, based on the findings and subject to the conditions contained therein.
II. INTRODUCTION
The objectives of the Drainage Master Plan Update/Agua Hedionda and Calavera Creeks project
are to help implement the proposed City of Carlsbad Drainage Master Plan and provide enhanced
flood control protection for the Rancho Carlsbad residential community.
The Drainage Master Plan Update (DMP Update) is a comprehensive, city-wide planning
document that serves to assess existing storm drain infrastructure and drainage areas; identify
anticipated improvements and additional infrastructure required to prevent flooding and
accommodate storm flows resulting from future development within the city; and provide guidance
on developing a Planned Local Drainage Area (PLDA) fee program to facilitate construction of
specific drainage facilities required for new development. The DMP Update would replace the
EIR 04-02/ZCA 07-04/LI A 07-06/CDP 06-04/SUP 06-02~P 06-03 -CITY OF
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City's current Master Drainage and Storm Water Quality Management Plan, adopted in 1994 and
amended in 1996.
· Components of both the existing and proposed drainage master plans are the dredging and
improvements of portions of Agua Hedionda Creek and Calavera Creek in and near the Rancho
Carlsbad mobile home community. The proposed dredging and improvements would provide
enhanced flood control protection to the community by removing the threat of flooding from
approximately 270 homes.
To accomplish the project objectives are three different proposed actions, all of which require a
Planning Commission recommendation or approval as identified herein:
1. EIR 04-02 -Certify a Final Environmental Impact Report for both the proposed DMP
Update and the dredging of the two creeks. The Final EIR analyzes most Update
components at a "program level" based on the preliminary design information available
for these components. For the two Update components that would result in the dredging
of portions of Agua Hedionda and Calavera creeks in and near Rancho Carlsbad and the
intersection of El Camino Real and Cannon Road, the Final EIR provides a "project
level" analysis based on the advanced design work completed.
With regards to the program level analysis, the EIR represents the best effort to evaluate
environmental impacts associated with implementation of the DMP Update given its
long-term planning horizon. It can be anticipated that development conditions could
change; however, the assumptions used are the best available at the time of preparation
and reflect existing knowledge of patterns of development, land use designations, and
technological factors related to engineering and design.
2. ZCA 07-04 & LCPA 07-04 -Amend the policies of the Local Coastal Program and
sections of the Zoning Ordinance to reference the proposed Drainage Master Plan. The
amendments, which can be characterized as "housekeeping" changes, would delete
references to the current "Master Drainage Plan" or similar term and uniformly replace
them with references to the "City of Carlsbad Drainage Master Plan." The amendments
would also delete references to the Model Erosion Control Ordinance and Model Grading
Ordinance, both of which are identified as part of the existing Master Drainage Plan but
which were not adopted and were replaced by other regulations; in one instance, the
reference to the Model Erosion Control Ordinance would be replaced by a new reference
to the City's Engineering Standards, the regulations that address erosion control, among
other things.
The proposed Local Coastal Program Amendment affects all segments of the City's
Coastal Zone except the Carlsbad Village Segment. Because the Village area is
essentially developed and lacks sensitive habitat, this segment lacks goals or policies that
relate to drainage infrastructure, storm water conveyance, or biological resources.
3. CDP 06-04, SUP 06-02 & HMPP 06-03 -Approve a Coastal Development Permit,
Special Use Permit (floodplain), and Habitat Management Plan Permit for the proposed
EIR 04-02/ZCA 07-04/L'A 07-06/CDP 06-04/SUP 06-02/ap 06-03 _ CITY OF
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dredging and improvements of Agua Hedionda and Calavera creeks. The Coastal
Development Permit applies only to the portion of the dredging and improvement project
in the Coastal Zone, which is the part of Agua Hedionda Creek between the Cannon Road
and El Camino Real bridges.
Planning Commission approval of the three permits above for the dredging of Agua Hedionda
and Calavera creeks is dependent upon certification of the Final EIR but is not dependent upon
approval of the DMP Update. This is because dredging of the creeks is a component of the
current Master Drainage and Storm Water Quality Management Plan adopted in 1994.
Also, adoption of the Drainage Master Plan Update is not subject to Planning Commission
review or recommendation and instead requires only the approval of the City Council. This
approval will occur at a later date. Staff has provided a copy of the DMP Update to the Planning
Commission for information only. An excellent description and analysis of the DMP Update is
also provided in the Final EIR.
All aspects of the project, including proposed Local Coastal Program and Zoning Ordinance
amendments and permits to dredge and improve the creeks, are consistent with the applicable
portions of the General Plan, remaining portions of the Zoning Ordinance and the Local Coastal
Program not proposed for change, and other applicable regulations such as the Habitat
Management Plan.
III. PROJECT DESCRIPTION AND BACKGROUND
Drainage Master Plan Update -Since adoption of the existing Master Drainage and Storm
Water Quality Management Plan in 1994, rapid growth and subsequent development of the City
have resulted in the need to reassess existing storm water infrastructure requirements and
pipeline capacities to accommodate projected drainage flows. The Drainage Master Plan Update
is a guidance document and contains the results of the assessment of existing storm drain
infrastructure, the identification of needed improvements required to accommodate storm water
flows resulting from new developments within the city limits, and a recalculation of the Planned
Local Drainage Area (PLDA) Fee Program. The PLDA Fee is paid by developers and used by
the City to construct and maintain storm water infrastructure required for handling the increased
storm water flows resulting from new developments.
The purpose of the DMP Update is to identify and implement necessary drainage improvements
to provide adequate storm water conveyance and flood control protection throughout the city.
Implementation of the proposed DMP Update would accomplish the following objectives:
1. Address existing and anticipated future drainage infrastructure deficiencies within the
city at a basinwide level;
2. Provide facilities to accommodate storm flows from future development contemplated by
the City's General Plan;
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3. Provide facilities to accommodate anticipated drainage infrastructure needs in the city,
either through rehabilitation and replacement of aging infrastructure or implementation of
new facilities necessary to accommodate generalized future development; and
4. Provide for necessary long-term infrastructure operation and maintenance activities to
ensure public safety, reduction of flood hazards, and storm water quality control.
Further, the DMP Update does not directly address storm water quality because the city now has
separate planning documents for storm water quality control. However, a benefit of the DMP
Update is that it would indirectly protect and improve water quality by improving storm water
conveyance, reducing erosion, and removing sediments and/or contaminants.
Agua Hedionda and Calavera Creeks General Description -The City proposes to conduct
drainage infrastructure modifications and improvements along Agua Hedionda and Calavera
creeks to provide enhanced flood protection for the residential community of Rancho Carlsbad.
Rancho Carlsbad is an existing residential mobile home community located east of El Camino
Real and south of Cannon Road. Over 50 percent of the homes in Rancho Carlsbad (278 of the
total 504 units) are located within the existing limits of the 100-year floodplain and could be
subject to flood damage during a major storm event. The original segments of Agua Hedionda
and Calavera creeks were reconstructed as man-made, earthen channels in conjunction with the
development of the Rancho Carlsbad community according to plans dated June 1969.
The Agua Hedionda and Calavera Creek project components are included as part of the DMP
Update (as PLDA components ''B" and "BN") but are farther along in the design process;
therefore, a sufficient level of detail is available to evaluate these projects at a project level
within the EIR. The Agua Hedionda and Calavera Creeks Dredging and Improvements Project
would reduce flooding in the Rancho Carlsbad residential community by improving the capacity
of Agua Hedionda and Calavera creeks, within Rancho Carlsbad, to contain a 100-year flood
event (all but approximately 9 of the 278 lots would be alleviated or partially alleviated from
inundation during a 100-year flood).
Calavera Creek flows along the north boundary of Rancho Carlsbad and joins Agua Hedionda
Creek, which passes through the center of the community, just upstream of El Camino Real.
From their confluence, Agua Hedionda Creek continues and exits the Rancho Carlsbad
community under El Camino Real. West of El Camino Real, Agua Hedionda Creek bends west,
where it passes beneath Cannon Road and flows into a natural stream channel that drains into
Agua Hedionda Lagoon.
A project map is attached that shows the creeks, proposed project features, and existing
landmarks.
The length of work in Agua Hedionda Creek within the project boundary is approximately 3,000
feet, extending from approximately 100 feet below the downstream edge of the Rancho Carlsbad
Drive Bridge to the downstream edge of the Cannon Road Bridge. The approximate length of
Calavera Creek within the project boundary is 3,400 feet, extending from near the intersection of
Cannon Road and College Boulevard to the confluence with Agua Hedionda Creek.
EIR 04-02/ZCA 07-04/L" A 07-06/CDP 06-04/SUP 06-02/H,PP 06-03 -CITY OF
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The improvements to Agua Hedionda and Calavera creeks are an integral part of the DMP
Update and are essential components of the flood control and protection measures outlined for
the city. Based on visual inspections and preliminary engineering, the overall channel
conveyance capacity of Agua Hedionda Creek has been reduced through the deposition of 4 to 6
feet of sediment accumulated over the 36 years since the original construction of the channel,
creating a backwater effect within Calavera Creek and reducing its capacity. Several
homeowners have installed revetment walls ( constructed of treated lumber and steel "I-beams")
and/or rock slope protection to protect their homes from damage during heavy storm events. In
fact, storms in 2004 resulted in significant scouring of the banks within Calavera Creek.
Approximately nine units would partially remain subject to inundation during a 100-year flood
event following implementation of the proposed DMP Update. Units that would partially remain
in the 100-year floodplain under the proposed scenario are on elevated foundations that would
raise their first-floor elevation above the 100-year floodplain level. Long-term maintenance of
both creeks is also proposed to maintain flood protection levels in Rancho Carlsbad.
In March 2006, emergency channel dredging was conducted and completed in portions of Agua
Hedionda and Calavera creeks to provide immediate flood protection for the residential
community of Rancho Carlsbad. Emergency dredging was conducted in two phases. The first
phase involved removing vegetation and dredging within the channel between the El Camino
Real and Cannon Road bridges. The second phase included dredging of the Agua Hedionda
Creek channel from the El Camino Real Bridge, working eastward (upstream) to the southern
boundary of Rancho Carlsbad Drive. To facilitate the work, the City issued an emergency
Coastal Development Permit in February 2006. Biological impacts associated with the
emergency work are being mitigated.
The 2006 emergency dredge activities were required to address immediate flood control and
public safety needs of the Rancho Carlsbad community; however, long-term dredging,
improvements, and regular maintenance for the Agua Hedionda and Calavera creeks as proposed
in the DMP Update must be completed to restore and maintain the flood control capacity of the
channels. In response, the proposed Coastal Development Permit, Special Use Permit
(floodplain), and Habitat Management Plan Permit have been submitted.
Improvements and dredging to Agua Hedionda Creek -Proposed work would involve sediment
removal and channel improvements along approximately 3,000 feet of channel bottom from near
Rancho Carlsbad Drive to the downstream edge of the Cannon Road Bridge. Between El Camino
Real Bridge and the confluence with Calavera Creek, Agua Hedionda Creek would be widened
by approximately 27 feet. Upstream of the confluence of Agua Hedionda and _Calavera creeks,
Agua Hedionda Creek would be dredged up to 6 feet in depth.
An access road would be constructed near the confluence of Agua Hedionda and Calavera creeks
to provide access for dredging equipment in the creeks (Figure 3-5). An additional access point
would be maintained to enter Agua Hedionda Creek between the El Camino and Cannon Road
bridges.
EIR 04-02/ZCA 07-04/LIA 07-06/CDP 06-04/SUP 06-02/H,PP 06-03 -CITY OF
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In addition to channel dredging, the following improvements would also occur to Agua
Hedionda Creek:
1. Removal and replacement of eroded concrete aprons and downdrains;
2. Slope stabilization (for areas subject to erosion or scour) with slope treatment material;
3. Construction of a desilting basin within the channel for temporary sediment control
measures during construction and for permanent sediment control as part of the long term
maintenance plan for Agua Hedionda Creek;
4. Installation of drop structures (gabions) to control stormwater velocity; and
5. Removal of retaining wall.
The project may also involve improvements to the existing support structures of the Cannon
Road and El Camino bridges to provide for a smoother flow of water under the bridges and
minimize potential accumulation of large debris. Project plans attached to this staff report
provide detailed information about the proposed improvements to both Agua Hedionda and
Calavera creeks.
Improvements and Dredging to Calavera Creek -The project proposes dredging that would
occur along approximately 300 feet of Calavera Creek from its confluence with Agua Hedionda
Creek just upstream of the El Camino Real bridge. The creek presently has a channel depth of
approximately 9 feet and a bottom width of approximately 4 feet, and the proposed dredging
would widen the creek bottom to 9 feet. Additional work would involve slope repair and
enhancement and drop structures, similar to that described above for Agua Hedionda Creek. A
decorative, 380-foot long wall adjacent to Calavera Creek would be removed to allow for access
during construction activities and reconstructed following dredging and improvements to the
creek.
Completion of proposed dredging and improvements to both creeks is estimated to take 4.5
months. Initial work would begin upstream near the Rancho Carlsbad Drive bridge and then
proceed downstream. If water is present upstream, a temporary channel diversion would be
installed at Rancho Carlsbad Drive. Dredging activities within Agua Hedionda Creek (including
excavation for the access road) are expected to take up to 50 working days. Dredging of Calavera
Creek would take up to 5 working days while the remaining slope restoration and structural
bridge improvements would be completed in approximately 45 working days.
Staging areas for project construction would be restricted to developed areas or areas with
nonnative/ornamental vegetation. Staging area locations may include the two vacant parcels east
of El Camino Real and between Cannon Road (hidden from view by an existing perimeter wall)
and Calavera Creek and the existing dirt access road between the Cannon Road and El Camino
Real bridges. If the two vacant parcels, owned by Calavera Hills II LLC, are unavailable, staging
would occur on existing maintenance roads along Calavera Creek over which the City has access
rights.
Besides equipment storage and maintenance, staging area activities would include dewatering of
dredge material prior to its transfer off-site. With regards to disposal of dredge materials, the
BIR 04-02/ZCA 07-04/L'A 07-06/CDP 06-04/SUP 06-02/HIP 06-03 -CITY OF
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City has two options: (1) beach replenishment, and/or (2) off-site disposal. More information
about each option maybe found in Chapter 3.0 of the Final BIR.
Upon completion of channel dredging and improvements, long-term maintenance of Agua
Hedionda Creek and Calavera Creek would be required to maintain 1.00-year flood capacity in
the creeks adjacent to Rancho Carlsbad and between the El Camino and Cannon Road bridges.
Long-term channel maintenance would include periodic inspections; sediment, debris, and
vegetation removal; and repair of eroded surfaces associated with drainage and bridge
appurtenances. The long-term monitoring and maintenance plan for Agua Hedionda and
Calavera creeks is included in Appendix B of the Final BIR. The ability to maintain the creeks on
a permanent basis is proposed as part of the project permits and is conditionee:i to occur according
to all conditions of approval, the project Mitigation Monitoring and Reporting Program, and the
previously mentioned monitoring and maintenance plan. ·
IV. ANALYSIS
The recommendation for approval of this project was developed by analyzing its
compliance/consistency with the following:
A. General Plan;
B. Zoning Ordinance;
C. Local Coastal Program;
D. Habitat Management Plan; and
E. Growth Management Ordinance.
A. General Plan
ZCA 07-04, LCPA 07-06, CDP 06-04, SUP 06-02, and HMPP 06-03-Compliance of the project
actions with the General Plan is demonstrated in the table below.
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TABLE 1 -GENERAL PLAN COMPLIANCE
ELEMENT GOAL, OBJECTIVE,
POLICY OR PROGRAM
Land Use A City which preserves and
enhances the environment,
character and image of itself
as a desirable residential,
beach and open space oriented
community.
Land Use Require compliance with the
Growth Management public
facility standards, which
includes that "drainage
facilities must be provided as
required by the City and·
concurrent with
development."
PROJECT CONSISTENCY
o Text amendments to incorporate by reference
the DMP Update are consistent with the
General Plan in that the Carlsbad General
Plan authorizes existing drainage
infrastructure and planned capacity
improvements to support and protect all
designated land uses in the city. The Drainage
Master Plan Update was designed to guide the
City in the implementation of drainage
facilities required to meet the present and
future needs of Carlsbad as anticipated by the
General Plan.
o No General Plan Amendments are proposed
as part of the Drainage Master Plan Update.
o The dredging of Agua Hedionda and Calavera
creeks m particular would remove
approximately 270 homes in Rancho .Carlsbad
from threat of flooding.
o Proposed amendments to the Zoning
Ordinance and Local Coastal Program will
facilitate implementation of the Drainage
Master Plan Update.
o The dredging of and improvements to Agua
Hedionda and Calavera creeks are needed to
provide flood protection to the Rancho
Carlsbad community.
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TABLE 1 -GENERAL PLAN COMPLIANCE CONTINUED
ELEMENT GOAL, OBJECTIVE, PROJECT CONSISTENCY
POLICY OR PROGRAM
Open Space To design storm water o Design of Drainage Master Plan Update
& conveyance systems that do components would incorporate design features
Conservation not adversely impact sensitive and construction measures to minimize
Element environmental resources. impacts to sensitive environmental resources.
o Dredging and improvements to Agua
Hedionda Creek and Calavera Creek are
consistent with Local Coastal Program
environmental policies and the Habitat
Management Plan; further, all biological
impacts can be mitigated to a level of
insignificance.
To control stormwater o The DMP Update does not propose wide-scale
pollutants. channelization of natural streams. The
majority of the proposed DMP Update
components involve improvements to existing
facilities or installation of drainage features in
developed areas (i.e., roads and right of-ways;
existing commercial, industrial, or residential
areas).
o Construction of drainage improvements and
facilities would be subject to compliance with
all regulations imposed by the City and other
agencies to ensure storm water quality.
Public Safety A city which minimizes o Implementation of the Drainage Master Plan
injury, loss of life, and Update would provide flood protection for
damage to property resulting developed areas and future developed areas.
from the occurrence of floods. The proposed text amendments would assist
in that implementation.
Require installation of
protective structures or other o Proposed dredging of and improvements to
design measures to protect Agua Hedionda and Calavera creeks would
proposed building and remove approximately 270 homes in Rancho·
development sites from the Carlsbad from threat of flooding by a 100-
effects of flooding or wave year storm event.
action.
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B. Zoning Ordinance
ZCA 07-04 -The proposed text amendments to the Zoning Ordinance would improve its use and
understanding by standardizing the references to the City's master drainage planning document.
Presently, references to this document vary and include "Master Drainage Plan," "Master
Drainage Plan dated 1994," and "Carlsbad master drainage plan." The proposed Zone Code
Amendment would replace these references uniformly with "City of Carlsbad Drainage Master
Plan." Additionally, reference to the ''Model Erosion Control Ordinance" as part of the drainage
master plan would also be deleted since, as explained in more detail under the Local Coastal
Program discussion below, this ordinance was not adopted and its proposed contents have been
replaced by other documents. Besides these proposed reference changes, no other amendments to
the Zoning Ordinance are proposed.
CDP 06-04, SUP 06-02 & HMPP 06-03 -Dredging of and improvements to Agua Hedionda and
Calavera Creeks require a Special Use Permit (floodplain) per Zoning Ordinance Chapter
21.110. The project complies with the requirements of this Chapter, including its statement of
purpose, in that the proposed dredging and improvements would benefit the Rancho Carlsbad
residential community by protecting human life and health, minimizing the need for rescue and
relief efforts associated with flooding, and minimizing damage to utilities. Further, the project
would remove nearly 270 units from the threat of flooding by a 100-year storm. The project also
includes a maintenance plan to ensure periodic dredging and maintenance continue so that
residences remain protected. The project also proposes no buildings, structures or habitable
components that would potentially expose people or property to flooding hazards.
The Zoning Ordinance also requires project compliance with the Habitat Management Plan and
various provisions of the Local Coastal Program. Discussion regarding the proposal's
consistency with these documents is below.
C. Local Coastal Program
ZCA 07-04 and LCPA 07-06 -The proposed amendment is required to bring Local Coastal
Program policies into consistency with each other and the similarly proposed amendment to the
Zoning Ordinance. This would enable the policies and implementing ordinances of the Local
Coastal Program to uniformly reference the proposed City of Carlsbad Drainage Master Plan.
The proposed •reference to the City of Carlsbad Drainage Master Plan would simply, in most
cases, replace references to the existing Master Drainage Plan, adopted in 1994. Existing
references to the Model Erosion Control Ordinance (in the Zoning Ordinance) and the Model
Grading Ordinance (in the Local Coastal Program polices) as part of the Master Drainage Plan
would also be deleted. Inclusion of these references date back to ordinances proposed in the
1980s but never adopted. Provisions for grading and erosion control are now found in documents
other than the Drainage Master Plan, such as the grading ordinance, and in region-wide
requirements for erosion and stormwater pollution control imposed on all cities by the Regional
Water Quality Control Board. For example, the proposed revision to Zoning Ordinance Section
21.38.141 (c) (6) replaces the requirement to comply with the "Model Erosion Control
Ordinance contained in the master drainage plan" with the requirement to comply with "City of
Carlsbad Engineering Standards and provisions of the Local Coastal Program."
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As evidenced by the numerous existing references to the City's master drainage plan and related
text that require compliance with the plan, it is the intent of the LCP to allow implementation of
drainage projects that are part of the City's drainage master planning program. The proposed
revisions to the Zoning Ordinance and policies of the Local Coastal Program would not
adversely impact coastal resources, obstruct coastal views or otherwise damage the visual beauty
of the coastal zone and are therefore consistent with the policies of the Local Coastal Program.
No permanent construction or development is involved with the proposed amendment. In
addition, all projects processed pursuant to the Drainage Master Plan Update that also require a
Coastal Development Permit would be required to comply with all applicable provisions and
policies of the certified Local Coastal Program.
CDP 06-04, SUP 06-02 & HMPP 06-03 -The proposal is in conformity with the public access
and recreation policies of Chapter 3 of the Coastal Act in that it involves dredging of existing
creeks that are not navigable, used for recreation, or bordered by public trails or recreation areas.
Further, the project is consistent with the provisions of the Coastal Resource Protection Overlay
Zone (Chapter 21.203 of the Zoning Ordinance) in that the project will adhere to the City's
Master Drainage Plan ( as well as the proposed Drainage Master Plan Update), Grading
Ordinance, Storm Water Ordinance, Standard Urban Storm Water Mitigation Plan (SUSMP),
and Jurisdictional Urban Runoff Management Program (JURMP) to avoid increased urban
runoff, pollutants, and soil erosion.
No steep slopes are located on the subject property and the site is not located in an area prone to
landslides. To enhance flood control, the project does propose removal of native vegetation and
construction of improvements within a floodway; however, the existing Local Coastal Program
requires storm drainage facilities in developed areas to be improved and enlarged according to
the City's existing Master Drainage Plan and thus it is the intent of the LCP, as noted above, to
allow implementation of drainage projects that are part of the City's drainage master planning
program. Furthermore, LCP Policy 3-l.7(a)(5) permits impacts to wetlands for dredging required
for public service purposes and there is no feasible alternative to dredging the area between the
El Camino Real and Cannon Road bridges (the portion of the project within the Coastal Zone)
that would provide flood protection to Rancho Carlsbad to the extent feasible and restore 100-
year flood capacity in the creeks. Further, impacts to wetlands would be mitigated to a level of
insignificance, and the portion of the project within the Coastal Zone is not part of a Habitat
Management Plan Hardline Preserve.
Moreover, natural vegetation would be retained as much as possible, such as along creek banks.
Additionally, on-site mitigation could potentially occur on the creek banks, where feasible, to
restore natural vegetation in place of existing exotic or ornamental vegetation. Further, the long-
term maintenance plan would promote the growth of native vegetation on the creek bank where
appropriate and discourage establishment of invasive exotic, nonnative, and ornamental
vegetation via maintenance activities.
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D. Habitat Management Plan
ZCA 07-04 and LCPA 07-06 -As they do not directly propose development nor impact
standards relating to habitat protection, the proposed Local Coastal Program and Zoning
Ordinance text amendments are consistent with the City's Habitat Management Plan.
CDP 06-04, SUP 06-02 & HMPP 06-03 -The proposed dredging, widening, and improving of
Agua Hedionda and Calavera creeks would impact both sensitive and non-sensitive habitat,
including 0.08 acre of willow riparian forest and 5.80 acres of nonnative/ornamental vegetation.
Impacts to willow riparian forest, which occur in the Coastal Zone, are considered significant.
Further, potential direct and indirect impacts on sensitive animal species such as the least bell's
vireo caused by construction and maintenance of the project are considered significant.
Project impacts to biological resources are in addition to those resulting from the emergency
channel dredging in 2006. The emergency work primarily dredged Agua Hedionda Creek,
whereas the project proposes widening of Agua Hedionda Creek and Calavera Creek, and
additional dredging and improvements such as permanent maintenance access. Therefore, since
it has a greater project "footprint," the project has additional impacts.
Despite its larger footprint, the majority of project biological impacts occur to non-sensitive
habitat. Further, the project design as proposed and conditioned is consistent with the Habitat
Management Plan because it has avoided and minimized impacts to habitat and covered species
to the maximum extent feasible in that:
1. There is no feasible alternative to dredging the creeks or impacting wetlands that would
provide flood protection to Rancho Carlsbad to the extent feasible and restore 100-year
flood capacity in the creeks;
2. All biological impacts can be reduced to a level of insignificance through mitigation
measures that require among other things, best management practices to limit indirect
temporary impacts due to construction (e.g., dust, noise, water quality) and creation,
restoration and enhancement of wetland and riparian habitat;
3. Natural vegetation would be retained as much as possible, such as along creek banks;
4. On:site mitigation could potentially occur on the creek banks, where feasible, to restore
natural vegetation in place of existing exotic or ornamental vegetation;
5. The long-term maintenance plan would promote the growth of native vegetation on the
creek bank where appropriate and discourage establishment of invasive exotic, nonnative,
and ornamental vegetation via maintenance activities;
6. The majority of the project is in an area the Habitat Management Plan indicates is a
"development area" and none of the project is in a Hardline Preserve Area, and;
7. The project is consistent with Local Coastal Program polices, including those regarding
wetland impacts, vegetation preservation, and sediment and erosion control. Further,
dredging and improvements to enhance flood control in existing drainage facilities are
acceptable functions in habitat areas.
In addition, the project is conditioned to comply with the requirements of all regulatory agencies
having jurisdiction over the project and the Mitigation Monitoring and Reporting Program.
EIR 04-02/ZCA 07-04/L~ A 07-06/CDP 06-04/SUP 06-02/HIP 06-03 -CITY OF
CARLSBAD DRAINAGE MASTER PLAN UPDATE/AGUA HEDIONDA AND CALAVERA
CREEKS
January 16, 2008
Pa e 13
E. Growth Management Ordinance
ZCA 07-04 and LCPA 07-06-The proposed Local Coastal Program and Zoning Ordinance text
amendments would not affect local facilities per the City's Growth Management Program as they
propose no development and do not amend any standards that would impact the City's ability to
plan or provide public services. .
However, compliance with the proposed City of Carlsbad Drainage Master Plan, as the proposed
amendments require, would help ensure that drainage facilities accommodate future development
as anticipated by the General Plan and are adequately maintained to provide public safety and
stormwater control: Therefore, the text amendments assist in compliance with the Growth
Management performance standard that "drainage facilities must be provided as required by the
City concurrent with development" and the General Plan Land Use Element Growth
Management and Public Facilities Goal A. I that states, "A City which ensures the timely
provision of adequate public facilities and services to preserve the quality of life of residents."
CDP 06-04, SUP 06-02 & HMPP 06-03 -The Agua Hedionda and Calavera Creeks project is in
four Local Facility Management Zones (8, 4, 15, and 24) since these zones all converge at the
intersection of El Camino Real and Cannon Road. Because the dredging and improvements
proposed involve no construction or development of habitable structures or uses, they would also
not impact the City's ability to plan or provide public services. in fact, by enhancing flood
protection for Rancho Carlsbad, the proposal complies with the Growth Management Ordinance
requirement of adequate drainage.
V. ENVIRONMENTAL REVIEW
The City of Carlsbad prepared an Environmental Impact Report (EIR) for the Drainage Master
Plan Update/Agua Hedionda and Calavera Creeks project as required by the California
Environmental Quality Act (CEQA), the CEQA Guidelines, and the Environmental Protection
Procedures (Chapter 19.04) of the City's Municipal Code. The EIR includes a program level
assessment of the potential impacts of the actions anticipated to be implemented under the long-
term planning horizon of the Drainage Master Plan Update. It is anticipated that subsequent
analysis and permits may or will be necessary to construct the various facilities identified in the
Update.
The EIR also includes a project level assessment for the proposed dredging and improvements to
Agua Hedionda and Calavera Creeks. Accordingly, the EIR addresses fully the environmental
impacts associated with this portion of the project such that permits for the dredging and
improvements may be approved upon certification of the EIR.
In accordance with CEQA Guidelines Section 15060(d), the City determined the Project would
clearly require an BIR and therefore did not prepare an Initial Study. The City issued its Notice
of Preparation (NOP) on March 29, 2006. The NOP was distributed to all responsible and
trustee agencies, as well as other agencies and members of the public (Appendix A of the Final
EIR), and was published in a local newspaper. A number of written responses were received.
EIR 04-02/ZCA 07-04/L~ A 07-06/CDP 06-04/SUP 06-02/H.P 06-03 -CITY OF
CARLSBAD DRAINAGE MASTER PLAN UPDATE/ AGUA HEDIONDA AND CALA VERA
CREEKS
January 16, 2008
Pae 14
On April 12, 2006, the City held a public scoping meeting at the City's Faraday Center.
Advance notice of the meetings was given in the NOP. At the scoping meeting, the public was
invited to comment on the scope and content of the EIR. Oral and written comments were
received. A copy of the NOP and the written comments received in response to the NOP and
public scoping process are included in Appendix A of the Final EIR.
The following substantive potential impact areas were identified for the environmental impact
analysis: ·
Land Use
Agricultural Resources
Visual Resources
Transportation/Circulation
Noise
Air Quality
Recreation
Geology/Soils
Hydrology/Water Quality
Biological Resources
Cultural Resources
Paleontological Resources
In addition to a comprehensive analysis of the above potential impact areas, the EIR includes
other substantive sections required by CEQA, such as the executive summary, project
description, cumulative effects, effects found not to be significant, growth inducing effects, and
alternatives.
The Draft EIR for the DMP Update was circulated for public review for a period of 45 days,
which started on July 16, 2007, and ended on August 31, 2007. A 15-day extension of the public
review period was granted, enabling additional comments to be received through September 14,
2007. The Draft EIR was distributed to a variety of public agencies and individuals. A Notice of
Completion (NOC) of the Draft EIR was published in a local newspaper. The NOC included
information on locations, including the City's website, where the EIR as well as the proposed
Drainage Master Plan Update document would be available to the public.
The City has considered and responded to public comments on the Draft BIR and determined
that recirculation of the Draft BIR is not required. Responses to comments received on the Draft
BIR are included in Appendix F of the Final BIR. The City released the Final BIR for public
review in December 2007. The Final BIR was distributed to all responsible and trustee agencies
as well as all agencies and members of the public that submitted written comments on the Draft
EIR. The City made public the release of the Final BIR through its posting on the City's website
and its availability at various public locations, such as city libraries and the Faraday building.
The BIR describes that program and/or project level components have potentially significant
impacts in the areas of noise, biological resources (including cumulative biological impacts),
cultural resources, and paleontological resources. However, the BIR concludes that all impacts
can be mitigated to below a level of significance. The BIR also determines that at either the
program or project level the project would result in no significant unavoidable impacts.
The CBQA Findings of Fact and Mitigation Monitoring and Reporting Program are attached to
the Planning Commission Resolution recommending certification of the BIR.
EIR 04-02/ZCA 07-04/L~A 07-06/CDP 06-04/SUP 06-02AP 06-03 -CITY OF
CARLSBAD DRAINAGE MASTER PLAN UPDATE/AGUA HEDIONDA AND CALAVERA
CREEKS
January 16, 2008
Pae 15
ATTACHMENTS:
1. Planning Commission Resolution No. 6376 (Final EIR)
2. Planning Commission Resolution No. 6377 (ZCA)
3. Planning Commission Resolution No. 6378 (LCPA)
4. Planning Commission Resolution No. 6379 (CDP)
5. Planning Commission Resolution No. 6380 (SUP)
6. Planning Commission Resolution No. 6381 (HMPP)
7. Location Map
8. Project Map
9. Background Data Sheet
10. Local Facilities Impact Assessment Form
11. Exhibit "Xl" -Strike-out and bold version of the proposed Zoning Ordinance text
amendments
12. Exhibit "Yl" -Strike-out and bold, italicized version of the proposed Local Coastal
Program text amendments
13. Disclosure Statement
14. Reduced exhibits
15. Final BIR 04-02 (previously distributed)
16. City of Carlsbad Drainage Master Plan Update document (previously distributed; for
information only)
17. Exhibits "A" -"H'' dated January 16, 2008
' .. • •
ERRATA SHEET FOR ITEM #2
January 16, 2008
TO: PLANNING COMMISSIONERS
FROM: Scott Donnell, Senior Planner
SUBJECT: EIR 04-02/ZCA 07-04/LCPA 07-06/CDP 06-04/SUP 06-02/HMPP 06-
03 -CITY OF CARLSBAD DRAINAGE MASTER PLAN
UPDATE/CALAVERA AND AGUA HEDIONDA CREEKS
The Final Environmental Impact Report and Findfngs of Fact indicate no more than nine
lots in Rancho Carlsbad would remain subject to at least partial inundation from a 100-
year flood following completion of proposed dredging and other improvements to Agua
Hedionda and Calavera creeks.
Actually, it is not possible to know the specific or maximum number oflots that would be
subject to inundation without further study. Therefore, staff i's recommending these
documents be changed as necessary to reflect that the number of lots be an approximate,
rather than a specific or maximum, number.
The following attachments contain the recommended revisions:
1. Planning Commission Resolution 6376, the resolution recommending
certification of EIR 04-02, which has been revised to note the proposed text
changes are minor and insignificant;
2. Exhibit "EIR-C," showing the proposed text changes to the Final EIR. This
exhibit would be an exhibit to Planning Commission Resolution 6376, and; -~-
3. The text revision to the Findings of Fact, which affects one page only.
In the attachments, bold, italicized, and underlined words _indicate tex_t to be added and
strikethrough words indicate text to be deleted.
Scott Donnell
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• •
. PLANNING·COMMISSION RESOLUTION-NO. 6376
A RESOtUTION OF THE PLANNING COMMISSION OF THE
CITY OF CARLSBAD, CALIFORNIA, RECOMMENDING
CERTIFICATON OF AN ENVIRONMENTAL IMPACT
REPORT AND ADOPTION OF CANDIDATE FINDINGS OF
FACT AND A MITIGATION MONITORING AND
REPORTING PROGRAM FOR T;HE DRAINAGE MASTER
PLAN UPDATE.
CASE NAME: CITY OF CARLSBAD DRAINAGE MASTER
PLAN UPDATE/AGUA HEDIONDA AND
CALA VERA CREEKS
CASE NO: · BIR 04-02
( ,
WHEREAS, th~ City of Carlsbad, "Applicant," has filed a verified application
with the City of Carlsbad to adopt a city-wide Drainage Master Plan, an update to the current
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Master ~rainage Plan previously adopted in 1994 and amended in 1996; and
WHEREAS, an Environmental Impact Report -EIR 04-02 was .. prepared in
conjunction with the City of Carlsbad Drainage Master Plan Update ("Project") in compliance
with the California Environmental Quality Act (CEQA); and
WHEREAS components of both the existing Master Drainage Plan· and Project
include the dredging of portions of Calavera and Agua Hedionda creeks for enhanced flood
control; and
WHEREAS, following public circulation and . notice of the Final
Environmental Impact Report (Final BIR), staff determined necessary additional minor text
changes to the Final BIR as shown in attached exhibit "EIR-C" These changes clarifv that
the number of lots in the Rancho Carlsbad communitv that would remain subiect to· at least
partial inundation during a 100-vear storm event, is an approximate, rather than a specific or
maximum number; and
WHEREAS, the minor text changes merely clarifv discussion already contained
in the Final BIR. As such, recirculation of the Final BIR is not required because the new
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information added to the BIR makes insignificant modifications to an adequate BIR (CEOA
Guideline, 15088.S(b)); and
WHEREAS, the Planning Commission did on January 16, 2008 hold a duly
noticed public hearing as prescribed by law to consider said request; and
WHEREAS, the Final EIR, as modified by attached Exhibit "EIR-C," was
presented to the Planning Commission, and the Planning Commission reviewed and considered
the information contained in the Final EIR prior to approving the Project; and
WHEREAS, at said public hearing, upon hearing and considering all testimony
and arguments, examining the Final EIR, Candidate Findings of Fact, and Mitigation
Monitoring and Reporting Program, analyzing the information submitted by City staff, and
considering any written and oral comments received, the Planning Commission considered all
factors relating to the Final EIR.
NOW, THEREFORE, BE IT HEREBY RESOLVED by the Planning
Commission as follows:
A) That the foregoing recitals are true and correct;
B)
C)
D)
That the Final EIR consists of EIR 04-02, dated December 2007, appendices,
written comments and responses to comments, all on file in the Plannin~_
Department and incorporated by this reference, and the minor text changes
identified in attached Exhibit "EIR-C," and collectively referred to as the
"Report."
That the Final EIR, EIR 04-02, as modified by attached Exhibit ''EIR-C, is
recommended for acceptance and certification as the FEIR, and that the FEIR as
recommended is adequate and provides reasonable information on the Project and
all reasonable and feasible alternatives thereto, including the "No Project"
alternative.
That based on the evidence presented at the public hearing, the Planning
Commission hereby RECOMMENDS CERTIFICATION of the Final EIR,
EIR 04-02, as modified by attached Exhibit "EIR-C," ("Report"), and
RECOMMENDS ADOPTION of the Candidate Findings of Fact ("CEQA"
Findings); attached hereto marked as Exhibit "EIR-A" and incorporated by
this reference; and the Mitigation Monitoring and Reporting Program
PC RESO NO. 6376 -2-
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('~Program"), attached hereto marked as Exhibit "EIR-B" and incorporated
by this reference; based on the following findings-that are supported by
substantial evidence in the Record and subject to the following condition:
Findings:
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2.
3.
4.
5.
The Planning Commission does hereby find that the Final EIR 04-02, as modified by
attached Exhibit "EIR-C," the CEQA Findings, and the Program have been prepared in
accordance with requirements of the California Environmental Quality Act, the State BIR
Guidelines, and the Environmental Review Procedures of the City of Carlsbad.
The Planning Commission has reviewed, analyzed, and considered Final BIR 04-02, the
environmental impacts therein identified for this Project and as modified by attached
Exhibit "EIR-C," the CEQA Findings, and the Program prior to RECOMMENDING
APPROVAL of the Project, and they-reflect the independent judgment of the City of
Carlsbad Planning Commission.
The Planning Commission does accept as its own, incorporate as if set forth in full
herein, and make each and every one of the findings contained in the CEQA.Findings, ·
including feasibility of mitigation measures pursuant to Public Resources Code ·21081
and CEQA Guidelines 15091, and infeasibility of Project alternatives.
The Planning Commission hereby finds that the Program is designed to ensure that
during Project implementation and operation the Developer and any other responsible
parties implement the Project components and comply with the feasible n:iitigation
measures identified in the CEQA Findings and the Program.
The Record of Proceedings for this Project consists of the Report, CEQA Findings, and
the Program; the "Record" upon which the Planning Commission bases these CEQA
Findings and its actions and determinations regarding the Project includes, but is not
limited to, the Draft BIR, together with all appendices ar,td technical reports referred to
therein, whether separately bound or not; all reports, letters, applications, memoranda~
maps, or other planning and engineering documents prepared by the City, planning·
consultant, environmental consultant, Project applicant, or others presented to or before
the decision-makers as determined by the City Clerk; all letters, reports, or other
documents submitted to the City by members of the public or public agencies in
connection with the City's environmental analysi~ on the Project; all minutes of any
public workshops, meetings, or hearings, including the scoping sessions, and any
recorded or verbatim transcripts/videotapes thereof; any letters, reports, or other
documents or other evidence submitted into the record at any public workshops, meeting,
or hearings; matters of common general knowledge to the City that the City may
consider, including applicable State or local laws, ordinances, and policies, the General
Plan, Zoning Ordinance, Local Facilities Management Plans, and all applicable planning
programs and poli'cies of the City; and, all findings and resolutions adopted by the City in
connection with the Project, including all documents cited or.referred to therein.
PC RESO NO. 6376 -3-
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The custodian of the full administrative record shall be the City Clerk's Office, 1200
Carlsbad Village Drive, and the-. Planning Director, 163 5 Faraday A venue, both in
Carlsbad, CA 92008.
Condition:
1. The Developer shall implement the mitigation measures described in Exhibit EIR-B,
the Program, for the mitigation measures and monitoring programs applicable to
development and operation of the Drainage Master Plan Update.
PASSED, APPROVED, AND ADOPTED at a regular meeting of the Planning
Commission of the City of Carlsbad, held on January 16, 2008, by the following vote, to wit:
AYES:
NOES:
ABSENT:
ABSTAIN:
JULIE BAKER, Chairperson
CARLSBAD PLANNING COMMISSION
PC RESO NO. 6376 -4-
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PC RESO NO. 6376 -5-
• • • • Exhibit "EIR-C" to Planning Commission Resolution 6376
January 16, 2008
~ ~.
Recommended Text Changes to Final Environmental Impact Report EIR 04-02
(Bold, italicized, and underlined words indicate text to be added and strikethrough words
indicate text to be deleted)
3.4 PROJECT LEVEL PROJECT DESCRIPTION
In addition to the program level analysis of project components that are currently at a
preliminary stage of design, some components identified with the DMP Update are at a
point in the design process that enables a project level analysis. The City has identified
and initiated design of two DMP Update components, Band BN, also collectively known
as the Agua Hedionda and Calavera Creeks Dredging and Improvements Project. These
components are evaluated at a project level in this document.
The City proposes to conduct drainage infrastructure modifications and improvements •
along Agua Hedionda and Calavera creeks to provide enhanced flood protection for the
residential community of Rancho Carlsbad, an existing residential mobile home
community located east of El Camino Real · and south of Cannon Road, in the
northeastern section of Carlsbad. Over 50 percent of the homes in Rancho Carlsbad are
located within the existing limits of the 100-year floodplain and could be subject to flood
damage during a major storm event. Within the DMP Update, the Agua Hedionda Creek
project components are included as Project B, and the Calavera Creek project
components are included as Project BN. Projects Band BN are farther along in the design
process, and therefore a sufficient level of detail is available to evaluate these projects at
a project level within this EIR.
Projects B and BN have both PLDA and non-PLDA elements, as shown in Tables 3-3
and 3-4, respectively, and described in more detail below. Together, Projects B and BN
would reduce flooding in the Rancho Carlsbad residential community by improving the
capacity of Agua Hedionda and Calavera creeks, within Rancho Carlsbad, to contain a
l00~year flood event (all but approximately a maximum of nine lots would be alleviated
from inundation during a 100-year flood event).
3.4.2 Project Background
The improvements to Agua Hedionda and Calavera creeks are an integral part of the
DMP Update and are essential components of the flood control and protection measures
outlined for the city. Based on visual inspections and preliminary engineering, the overall
channel conveyance capacity of Agua Hedionda Creek has been reduced through the
deposition of 4 to 6 feet of sediment accumulated over the 36 years since the original
construction of the channel, creating a backwater effect within the Calavera Creek
conveyance. This reduces the conveyance capacity of Calavera Creek. Localized scour
along Calavera Creek' banks has threatened to undermine residential foundations during
heavy storm events. Several homeowners have installed revetment walls ( constructed of
treated lumber and steel "I-beams") and/or rock slope protection to protect their homes
from damage during heavy storm events. Approximately maximum of nine units would
....
•• -.• Exhibit "EIR-C" to Planning Commission Resolution 6376
January 16, 2008
partially remain subjeet-to inundation during a 100-year flood event following
implementation of the proposed DMP Update. The All nme units that would partially
remain in the 100-year floodplain under the proposed scenario are on elevated
foundations that would raise their first-floor elevation above the 100-year floodplain
level. Long-term maintenance of both creeks is also proposed to maintain flood
protection levels in Rancho Carlsbad.
· 7.1.2 Project Level
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Following the 1996 amendment to the MDSQMP to include Agua Hedionda Creek as a
PLDA project (see Section 3.1.1), the City contracted Rick Engineering Company to
conduct a study to evaluate various design alternatives to achieve 100-year flood capacity
in Agua Hedionda and Calavera creeks (Rick Engineering Compa,ny 2004). The· design
alternatives considered various combinations of the following actions: improvements to
·Calavera Dam and the existing BJB Basin, construction of new detention basins (referred
to as Melrose, Faraday, and BJ in the Rick Engineering Company report), and channel
improvements and dredging within Agua Hedionda Creek. Dredging and maintenance
within Calavera Creek were not considered 'as part of these alternatives. These
alternatives were ultimately rejected, however, because they did not provide 100-year
flood protection for as many lots as feasible ( compared to the proposed DMP Update
componeµts, which woul4 alleviate all but approximately nine lots from inundation
during a 100-year flood event).
Appendix F-Response to Comments
. . -·
L3-49 The City does not intend to acquire any lots with private residents for habitat
preservation purposes. The primary objective of the dredging and improvements
to Agua Hedionda and Calavera creeks is to provide 100-year flood protection to
the maximum number of lots as feasible and practicable. In this case, all but
approximately 9 lots would receive protection from a 100-year flood event.
• .. . ...
• • Findings of Fact
Proposed, added text is underlined, italicized, and bolded.
-~r -
Operation and maintenance of existing and proposed drainage facilities are an essential
component for the proper and efficient function of city infrastructure. While operation
and maintenance activities are anticipated for all city drainage facilities, including both
PLDA and non-PLDA DMP Update components, these proposed activities are long-term
commitments that would not be paid for by private developers and would therefore not
receive funding from the PLDA fee program.
Proposed operation and maintenance activities have been grouped into a number of
categories, including (but not limited to) Inlet/Outlet and Channel Maintenance, Existing
Facilities Repair, Facility Rehabilitation/Upgrades (Non-capacity Related), Culvert
Replacement and Roadway Rehabilitation, Bridge Rehabilitation/Replacement, Storm
Drain Infrastructure Repair, Sedimentation/Retention/Water Quality Basin Maintenance
and Repair, and Jurisdictional Dam operation and maintenance. Each of these categories
is discussed in greater detail in Section 3.3.6 of the Final EIR.
Project Level
Project components B and BN are proposed to provide flood protection for the Rancho
Carlsbad residential community by improving the capacity of Aqua Hedionda and
Calavera creeks (within Rancho Carlsbad) to contain a 100-year flood event, to the extent
feasible. Both project components contain both PLDA and non-PLDA elements.
Proposed PLDA project component B involves channel improvements along
approximately 3,000 LF of an existing tributary that conveys runoff from Agua Hedionda
Creek and adjacent open areas. PLDA project component B would involve dredging
portions of Agua Hedionda Creek to widen the creek at its confluence with Calavera
Creek, improving conveyance capacity of the channel for containment of a 100-year
flood event, collecting on-site and off-site storm water runoff, and minimizing flooding
of segments of Agua Hedionda Creek adjacent to the Rancho Carlsbad residential
community. Proposed improvements would entail dredging, dewatering, possible beach
disposal of sand and sediment from within the channel banks, possible bridge -
stabilization, and on-site restoration where appropriate. · "';,-
PLDA project component BN would involve excavation and enhancement of Calavera
Creek. Modifications include installation of gabion structures, removal of miscellaneous
concrete, and bank stabilization.
Upon completion of channel dredging improvements, long-term maintenance of both
Agua Hedionda and Calavera creeks would be required to maintain flood control capacity
(i.e., contain 100-year flood events). Project components B and BN both propose non-
PLDA components, including long-term channel maintenance in the form of periodic
inspections; sediment, debris, and, vegetation removal; and repair of eroded surfaces
associated with drainage and bridge appurtenances.
With implementation of PLDA project components Band BN, all but approximately nine
of the lots in Rancho Carlsbad would receive protection from a 100-year flood event.
CEQA Findings of Fact 8 January 16, 2008
EJR 04-02 Carlsbad Drainage Master Plan Update
NOT TO SCALE
SITE MAP Aqua Hedionda and
Calavera Creek Dredging
SUP 06-02/HMPP 06-03/
CDP 06-04
Agua Hedionda and Calavera Creek Dredging
SUP 06-02/HMPP 06-03/CDP 06-04
PROJECT MAP
0:: 0 0 Ii: w ID ..!J <;: z 0 0
Legend
~ Project Site
------· Creek
~ Bridge
-
CASE NO:
.BACKGROUND DATA SHEET •
EIR 04-02/CDP 06-04/SUP 06-02/HMPP 06-03
CASE NAME: AGUA HEDIONDA AND CALA VERA CREEKS
APPLICANT: -=C=it'-'-y--=-o-"-f-=C=ar=ls=b=a=d ___________________ _
REQUEST AND LOCATION: The project would dredge and improve portions of Agua
Hedionda and Calavera creeks for enhanced flood control purposes. Project locations affect
portions of the creeks and adjacent properties at and near the intersection of El Camino Real and
Cannon Roads and within the Rancho Carlsbad residential community.
LEGAL DESCRIPTION: A portion of Parcel 1 of Parcel Map 17985; a portion of Lot 195 of
Tract Map 13189; a portion of Lot 148 of Tract Map 13715; a portion of Parcels 2 and 3 of
Parcel Map 19804.
APN: Portions of 168-050-37, 38, 39, 40, 41; 168-050-55; 168-050-56; 208-162-34; 212-152-01
Acres: 11 (approximate; includes staging areas) Proposed No. of Lots/Units: "'"'N"-=/A-=-------
GENERAL PLAN AND ZONING
Existing Land Use Designations: -=O...c:Sc.,...a:.;RM=-------------------
Proposed Land Use Designation: N~/A'-"'---------------------
Density Allowed: 4-8 du/ac (N/A)
Existing Zone: P-C, OS, R-1, RMHP
Density Proposed: ~N~/ A __________ _
Proposed Zone: N~/ A'-"'-------------
Surrounding Zoning, General Plan and Land Use:
Zoning General Plan Current Land Use
Site P-C, OS, R-1, RMHP OS,RM Creek channels, vacant
North P-C,RMHP RLM,RM Mobile home park, vacant
South OS, R-1, RMHP RM,OS Residential, open space
East RMHP RM Residential
West P-C, OS, R-1, RMHP RM,QS Residential, vacant, open space
LOCAL COASTAL PROGRAM
Coastal Zone: ~ Yes D No Local Coastal Program Segment: __ M __ e-=11 ..... o ___ II _____ _
Within Appeal Jurisdiction: ~ Yes D No Coastal Development Permit: ~ Yes D No
Local Coastal Program Amendment: D Yes ~ No
Existing LCP Land Use Designation: OS, RM Proposed LCP Land Use Designation: N=--:a..:::/A..;:._ __
Existing LCP Zone: OS, R-1 Proposed LCP Zone: NIA
Revised O 1/06
-PUBLIC FACILITIES • School District: Carlsbad Unified Water District: Carlsbad Municipal Sewer District: Carlsbad
Equivalent Dwelling Units (Sewer Capacity): _N_/A _______________ _
ENVIRONMENT AL IMPACT ASSESSMENT
D Categorical Exemption, ______________________ _
D Negative Declaration, issued ____________________ _
~ Final Environmental Impact Report, dated December 2007 (pending City Council
certification)
D Other,
Revised O l /06
-CITY OF CARLSBAD •
GROWTH MANAGEMENT PROGRAM
LOCAL FACILITIES IMPACTS ASSESSMENT FORM
(To be submitted with Development Application)
PROJECT IDENTITY AND IMPACT ASSESSMENT:
FILE NAME AND NO: Agua Hedionda and Calavera Creeks -EIR 04-02/CDP 06-04/SUP 06-
02/HMPP 06-03
LOCAL FACILITY MANAGEMENT ZONES: 8, 14, 15, 24 GENERAL PLAN: OS, RM
ZONING: P-C OS R-1 RMHP
DEVELOPER'S NAME: -=C=ity"'-=-'of=--C=ar=l=sb=a=d'------------------
ADDRESS: 1635 Faraday Avenue, Carlsbad, CA 92008-7314
PHONE NO.: 602-4600 ASSESSOR'S PARCEL NO.: Portions of 168-050-37, 38, 39, 40, 41;
168-050-55· 168-050-56· 208-162-34· 212-152-01
QUANTITY OF LAND USE/DEVELOPMENT (AC., SQ. FT., DU): Creek dredging and
improvement for enhanced flood control purposes; no buildings proposed.
ESTIMATED COMPLETION DATE: =-20=--=0--=-8_-=20=--=0-"---9 ____________ _
A.
B.
C.
D.
E.
F.
G.
H.
I.
J.
K.
City Administrative Facilities: Demand in Square Footage=
Library: Demand in Square Footage=
Wastewater Treatment Capacity (Calculate with J. Sewer)
Park: Demand in Acreage =
Drainage: Demand in CFS =
Identify Drainage Basin =
(Identify master plan facilities on site plan)
Circulation: Demand in ADT =
(Identify Trip Distribution on site plan)
Fire:
Open Space:
Schools:
(Demands to be determined by staff)
Sewer:
Served by Fire Station No.=
Acreage Provided =
Demands in EDU
Identify Sub Basin =
(Identify trunk line(s) impacted on site plan)
Water: Demand in GPD =
NIA
NIA
NIA
NIA
NIA
Basin B
NIA
5
NIA
NIA
NIA
8, 15A, 24A
NIA
L. The project does not require or affect the Growth Management Dwelling unit allowance.
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• •
ORDINANCE NO. ___ _
Exhibit "X1"
January 16, 2008
AN ORDINANCE OF THE CITY COUNCIL OF THE CITY OF
CARLSBAD, CALIFORNIA AMENDING TITLE 21 OF THE
MUNICIPAL CODE BY DELETING REFERENCES TO THE
MASTER DRAINAGE PLAN ADOPTED IN 1994 AND THE
MODEL EROSION CONTROL ORDINANCE AND ADDING
REFERENCES TO THE PROPOSED CITY OF CARLSBAD
DRAINAGE MASTER PLAN AND EXISTING ENGINEERING
STANDARDS.
CASE NAME: DRAINAGE MASTER PLAN UPDATE
CASE NO.: ZCA 07-04
Note: (bold words indicate text to be added and strikethrough words indicate text to be deleted)
The City Council of the City of Carlsbad, California does ordain as follows:
SECTION 1: That Section 21.38.141 (c) (6) of the Carlsbad Municipal Code is amended
to read as follows:
6. A site specific technical report shall be required addressing the cumulative
effects of developing each subwatershed and recommending measures to mitigate both
increased runoff and sedimentation. It shall be reviewed and prepared according to the Me€lel
Erosion Control Ordinance contained in the City of Carlsbad Engineering Standards and
provisions of the Local Coastal Program master drainage plan, with the additions and
changes adopted herein, such that a natural drainage system is generally preserved for the
eastern undeveloped watersheds, but that storm drains are allowed for those western portions
of the watershed which have already been incrementally developed.
SECTION 2: That Section 21.203.040 B.1. of the Carlsbad Municipal Code is amended
to read as follows:
1. Buena Vista Lagoon. Developments located along the first row of lots bordering
Buena Vista Lagoon, including the parcel at the mouth of the lagoon, shall be designated for
residential development at a density of up to four dwelling units per acre. Proposed
development in this area shall be required to submit topographic and vegetation mapping and
analysis, as well as soils reports, as part of the development permit application. Such
information shall be provided in addition to any required environmental impact report, and shall
be prepared by qualified professionals and in sufficient detail to locate the boundary of wetland
and upland areas and areas of slopes in excess of twenty-five percent. Topographic maps shall
be submitted at a scale sufficient to determine the appropriate developable areas, generally not
less than a scale of one inch equals one hundred feet with a topographic contour interval of five
feet, and shall include an overlay delineating the location of the proposed project. The lagoon
and wetland area shall be delineated and criteria used to identify any wetlands existing on the
site shall be those of Section 30121 of the Coastal Act and based upon the standards of the
local coastal program mapping regulations. Mapping of wetlands and siting of development shall
be done in consultation and subject to the approval of the Department of Fish and Game.
Development shall be clustered to preserve open space for habitat protection. Minimum
setbacks of at least one hundred feet from wetlands/lagoon shall be required in all development,
in order to buffer such sensitive habitat area from intrusion. Such buffer areas, as well as other
open space areas required in permitted development to preserve habitat areas, shall be
permanently preserved for habitat .uses through provision of an open space easement as a I
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•
condition of project approval. In the event that a wetland area is bordered by steep slopes (in
excess of twenty-five percent) which will act as a natural buffer to the habitat area, a buffer area
of less than one hundred feet in width may be permitted. The density of any permitted
development shall be based upon the net developable area of the parcel, excluding any portion
of a parcel which is in wetlands or lagoon. As specified in subsection A of this section, a density
credit may be provided for that portion of the parcel which is in steep slopes. Storm drain
alignments as proposed in the City of Carlsbad Drainage Master Plan master drainage plan
which would be carried through or empty into Buena Vista Lagoon shall not be permitted, unless
such improvements comply with the requirements of Sections 30230, 30231, 30233 and 30235
of the Coastal Act by maintaining or enhancing the functional capacity of the lagoon in a manner
acceptable to the State Department of Fish and Game. Land divisions shall only be permitted on
parcels bordering the lagoon pursuant to a single planned development permit for the entire
original parcel.
SECTION 3: That Section 21.203.040 B. 3. a. of the Carlsbad Municipal Code is
amended to read as follows:
a. All development must include mitigation measures for the control of urban runoff
flow rates and velocities, urban pollutants, erosion and sedimentation in accordance with: (1)
the requirements of the city's grading ordinance, storm water ordinance, standard urban storm
water mitigation plan (SUSMP) dated April 2003, and as amended, and the City of Carlsbad
Drainage Master Plan master drainage plan dated 1994, as those documents are certified as
part of the city's LCP; (2) the city's jurisdictional urban runoff management program (JURMP)
and the San Diego County Hydrology Manual to the extent that these requirements are not
inconsistent with any policies of the LCP; and (3) the additional requirements contained herein.
Such mitigation shall become an element of the project, and shall be installed prior to the initial
grading.
SECTION 4: That Section 21.203.040 B. 3. c. of the Carlsbad Municipal Code is
amended to read as follows:
c. Mitigation shall require construction of all improvements shown in the City of
Carlsbad Drainage Master Plan master drainage plan and any amendments to them for the
area between the project site and the lagoon (including the debris basin), as well as
revegetation of graded areas immediately after grading; and a mechanism for permanent
maintenance if the city declines to accept the responsibility. Construction of drainage
improvements may be through formation of an assessment district, or through any similar
arrangement that allocates costs among the various landowners in an equitable manner.
'SECTION 5: That Section 21.203.040 B. 4. a. of the Carlsbad Municipal Code is
amended to read as follows:
a. All development must include mitigation measures for the control of urban runoff
flow rates and velocities, urban pollutants, erosion and sedimentation in accordance with: (1)
the requirements of the city's grading ordinance, storm water ordinance, standard urban storm
water mitigation plan (SUSMP) dated April 2003 and as amended, and the City of Carlsbad
Drainage Master Plan master drainage plan dated 1994, as those documents are certified as
part of the city's LCP; (2) the city's jurisdictional urban runoff management program (JURMP)
and the San Diego County Hydrology Manual to the extent that these requirements are not
inconsistent with any policies of the LCP; and (3) the additional requirements contained herein.
-2-
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Such mitigation shall become an element of the project and shall be installed prior to the initial
grading.
SECTION 6: That Section 21.203.040 B. 4. c. of the Carlsbad Municipal Code is
amended to read as follows:
c. Mitigation shall also require construction of all improvements shown in the City
of Carlsbad Drainage Master Plan master drainage plan and amendments to it. No
subsequent amendments are a part of this zone unless certified by the coastal commission. The
general provisions, procedures, standards, content of plans and implementation contained with
them are required conditions of development in addition to the provisions below. Approved
development shall include the following conditions, in addition to the requirements specified
above:
SECTION 7: That Section 21.203.040 B. 4. c. i of the Carlsbad Municipal Code is
amended to read as follows:
i. All off-site, downstream improvements (including debris basin and any other
improvements recommended in the City of Carlsbad Drainage Master Plan drainage plan)
shall be constructed prior to the issuance of a grading permit on-site. Improvements shall be
inspected by city or county staff and certified as. adequate and in compliance with the
requirements of the drainage plan and the additional requirements of this zone. If the city or
county declines to accept maintenance responsibility for the improvements, the developer shall
maintain the improvements during construction of the on-site improvements;
SECTION 8: That Section 21.203.040 B. 4. c. vi. of the Carlsbad Municipal Code
is amended to read as follows:
vi. Storm drainage facilities in developed areas shall be improved and enlarged
according to the City of Carlsbad Drainage Master Plan Carlsbad master drainage plan,
incorporating the changes specified in this section. Improvement districts shall be formed for
presently undeveloped areas which are expected to urbanize in the future. The improvement
districts shall implement the City of Carlsbad Drainage Master Plan master drainage plan.
Upstream areas in the coastal zone shall not be permitted to develop incrementally prior to
installation of the storm drain facilities downstream, in order to assure protection of coastal
resources. New drainage facilities, required within the improvement districts shall be financed
either by some form of bond or from fees collected from developers on a cost-per-acre basis;
SECTION 9: That Section 21.205.060 a. of the Carlsbad Municipal Code is
amended to read as follows:
a. All development must include mitigation measures for the control of urban runoff
flow rates and velocities, urban pollutants, erosion and sedimentation in accordance with: (1)
the requirements of the city's grading ordinance, storm water ordinance, standard urban storm
water mitigation plan (SUSMP) dated April 2003 and as amended, and the City of Carlsbad
Drainage Master Plan master drainage plan dated 1994, as those documents are certified as
part of the city's LCP; (2) the city's jurisdictional urban runoff management program (JURMP)
and the San Diego County Hydrology Manual to the extent that these requirements are not
inconsistent with any policies of the LCP; and (3) the additional requirements contained herein.
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•
Such mitigation shall become an element of the project and shall be installed prior to the initial
grading.
SECTION 10: That Section 21.205.060 c. of the Carlsbad Municipal Code is
amended to read as follows:
c. Mitigation shall also require construction of all improvements shown in the City
of Carlsbad Drainage Master Plan master drainage plan and amendments to it. No
subsequent amendments are a part of this zone unless certified by the coastal commission. The
general provisions, procedures, standards, content of plans and implementation contained in
them are required conditions of development in addition to the provisions below. Approved
development shall include the following conditions, in addition to the requirements specified
above:
SECTION 11: That Section 2121.205.060 c: i. of the Carlsbad Municipal Code is
amended to read as follows:
i. All off-site, downstream improvements (including debris basin and any other
improvements recommended in the City of Carlsbad Drainage Master Plan drainage plan)
shall be constructed prior to the issuance of a grading permit on-site. Improvements shall be
inspected by city staff and certified as adequate and in compliance with the requirements of the
drainage plan and the additional requirements of this zone. If the city declines to accept
maintenance responsibility for the improvements, the developer shall maintain the
improvements during construction of the on-site improvements;
Ill
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•
EFFECTIVE DATE: This ordinance shall be effective no sooner than thirty
days after its adoption but not until approved by the California Coastal Commission, and the City
Clerk shall certify to the adoption of this ordinance and cause it to be published at least once in
a publication of general circulation in the City of Carlsbad within fifteen days after its adoption.
INTRODUCED AND FIRST READ at a regular meeting of the Carlsbad City
Council on the __ day of _____ 2008, and thereafter.
PASSED AND ADOPTED at a regular meeting of the City Council of the City of
Carlsbad on the ______ day of ______ 2008, by the following vote, to wit:
AYES:
NOES:
ABSENT:
ABSTAIN:
APPROVED AS TO FORM AND LEGALITY
RONALD R. BALL, City Attorney
CLAUDE A. LEWIS, Mayor
ATTEST:
LORRAINE M. WOOD, City Clerk
(SEAL)
-5-
Exhibit Y-1
January 16, 2008
LCPA 07-06
Proposed Text Changes to Agua Hedionda Land Use Plan
(Bold, italicized words indicate text to be added and strikethrough words indicate text to be deleted)
3-13-1.14 Invasive Plants
The use of invasive plant species in the landscaping for developments such as those identified
in Table 12 of the HMP shall be prohibited.
3-14 Grading and Landscaping Requirements
In addition to the requirements of the model grading ordinance in the City of Carlsbad Master
Drainage Master Plan, permitted new development shall also comply with the following
requirements:
a. Grading activity shall be prohibited during the rainy season: from October 1st
to April 1st of each year.
b. All graded areas shall be landscaped prior to October 1st of each year with
either temporary or permanent landscaping materials, to reduce erosion
potential. Such landscaping shall be maintained and replanted if not well-
established by December 1st following the initial planting.
c. The October 1st grading season deadline may be extended with the approval of
the City Engineer subject to implementation by October 1st of special erosion
control measures designed to prohibit discharge of sediments off-site during
and after the grading operation. Extensions beyond November 15th may be
allowed in areas of very low risk of impact to sel)sitive coastal resources and
may be approved either as part of the original coastal development permit or as
an amendment to an existing coastal development permit.
d. If any of the responsible resource agencies prohibit grading operations during
the summer grading period in order to protect endangered or rare species or
sensitive environmental resources, then grading activities may be allowed
during the winter by a coastal development permit or permit amendment,-
provided that appropriate best management practices (BMPs) are incorporated
to limit potential adverse impacts from winter grading activities.
26
-LCPA07-06
Proposed Text Changes to Agua Hedionda Land Use Plan
Exhibit Y-1
January 16, 2008
(Bold, italicized words indicate text to be added and strikethrough words indicate text to be deleted)
• Policies
4.1 a. All development must include mitigation measures for the control of urban runoff
flow rates and velocities, urban pollutants, erosion and sedimentation in
accordance with the requirements of the City's Grading Ordinance, Storm Water
Ordinance, Standard Urban Storm Water Mitigation Plan (SUSMP), Master City
of Carlsbad Drainage Master Plan, and the following additional requirements.
The SUSMP, dated April 2003 and as amended, and the City of Carlsbad Master
Drainage Master Plan (1994) are hereby incorporated into the LCP by reference.
Development must also comply with the requirements of the Jurisdictional Urban
Runoff Management Program (JURMP) and the San Diego County Hydrology
Manual to the extent that these requirements are not inconsistent with any policies
of the LCP..
b. Prior to making land use decisions, the City shall utilize methods available to
estimate increases in pollutant loads and flows resulting from proposed future
development. The City shall require developments to incorporate structural and
non-structural best management practices (BMP's) to mitigate the projected
increases in pollutant loads and minimize any increases in peak runoff rate.
c. Water pollution prevention methods shall be implemented to the maximum extent
practicable, and supplemented by pollutant source controls and treatment. Small
collection strategies located at, or as close as possible to, the source (i.e., the point
where water initially meets the ground) to minimize the transport of urban runoff
and pollutants offsite and into a municipal separate storm sewer system (MS4)
shall be utilized.
d. Post-development runoff from a site shall not contain pollutant loads which cause
or contribute to an exceedance of receiving water quality objectives or which have
not been reduced to the maximum extent practicable.
e. Development projects should be designed to comply with the following site design
principles:
I. Protect slopes and channels to decrease the potential for slopes and/or
channels from eroding and impacting storm water runoff.
2. To the extent practicable, cluster development on the least environmentally
sensitive portions of a site while leaving the remaining land in a natural
undisturbed condition.
3. Preserve, and where possible, create or restore areas that provide important
water quality benefits, such as riparian corridors, wetlands and buffer zones.
Land acquisition of such areas shall be encouraged.
4. Provide development-free buffer zones for natural water bodies.
5. Minimize the amount of impervious surfaces and directly connected
impervious surfaces in areas of new development and redevelopment.
39
Exhibit Y-1
January 16, 2008
LCPA 07-06
Proposed Text Changes to Agua Hedionda Land Use Plan
(Bold, italicized words indicate text to be added and strikethrough words indicate text to be deleted)
• Construction of drainage facilities prior to or concurrently with grading activities;
• Grading of surfaces so as to direct runoff toward planned drainages and, if
possible, away from cut and fill slopes;
• Early planting and maintenance of ground cover suitable for slope erosion control
and maximum retention of natural vegetation;
• Development projects shall preserve, as feasible, natural drainage swales and
landforms.
4.3 Development projects shall provide for improvements indicated in the City of
Carlsbad Master Drainage Master Plan, and shall limit the rate of runoff through the
provision of onsite catchment basins, desilting basins, subsurface drains, and similar
improvements as necessary. Runoff shall be controlled in such a way that the velocity
and rate of runoff leaving the site shall not exceed that of the site in its natural state.
4.4 Recognizing the unique environmental features of the lagoon and its environs and the
sensitivity of the area to soil erodibility and sedimentation, development shall be
regulated as follows:
a. Development on existing subdivided lots having all of their area in slopes of 25%
or greater shall be permitted, but grading shall be limited to minimal site
preparation for pole-type footings. Driveway/parking areas shall be limited in size
and shall be restricted to an area adjacent to the local streets. Onsite vegetation
shall not be disturbed beyond the minimal area needed to be cleared for the
construction process, which shall be clearly delineated on approved site plans.
b. Development, grading and landform alteration of natural steep slope areas (25%)
shall be avoided, when feasible. Any unavoidable disturbance shall be minimized
to the extent possible. Exceptions may include encroachments by roadway and
utilities necessary to reach flatter developable areas, when there is no feasible less
environmentally damaging alternative. The maximum allowable density shall be
calculated on the total lot area, although this may be modified through setbacks,
plan review, or other requirements of this plan and applicable City regulations.
c. Use of the Planned Development (PD) mechanism and cluster development shall
be required in areas containing environmentally sensitive resources, extensive
steep slope areas and significant natural landform features.
39
Exhibit Y-1
January 16, 2008
LCPA07-06
Proposed Text Changes to Agua Hedionda Land Use Plan
(Bold, italicized words indicate text to be added and strikethrough words indicate text to be deleted)
a) A runoff control plan prepared by a licensed engineer qualified in hydrol(?gy and
hydrolics demonstrating/ that there would be no significant increase in peak runoff
rate from the developed site over the greatest discharge expected from the existing
undeveloped site as a result of 6 hour, lo-year frequency storm. Runoff control
may be accomplished by a variety of methods including such devices as catchment
basins, detention basins, siltation traps, or other appropriate measures.
b) Development approvals shall include detailed maintenance provisions for repair
and maintenance of approved drainage and erosion control facilities. Permanent
runoff control and erosion control devices shall be installed prior to or concurrent
with onsite grading activities.
c) Development shall meet all other requirements of this plan, including the
provisions of the City of Carlsbad Grading Ordinance and Master Drainage Master
Plan.
5.8 The conceptual alignment recommended by PRC Toups (alignment 1-B) for Cannon
Road shall be incorporated into this plan (see Exhibit G). In developing the precise
alignment of the proposed roadway, the following design criteria and environmental
protection measures shall apply:
a) No portion of the road construction shall involve filling or dredging of fresh or
saltwater marsh wetlands, except as noted in the letter from the Coastal
Commission to the State Department of Fish and Game (2/17 /82; Attachment 3, P.
56).
b) To the extent that any portion of the road construction would occur in or adjacent
to an environmentally sensitive habitat area other than a wetland, the road shall be
sited and designed to prevent impacts which would significantly degrade such
areas, shall avoid significant disruption of habitat values, and shall be sited and
designed to be compatible with the continuance of habitat values.
c) To the extent that there are no feasible less environmentally damaging alternatives
and the road as designed would nonetheless result in adverse impacts to
environmentally sensitive habitat areas, such impacts shall be fully mitigated in
accordance with the recommendations of the State Department of Fish and Game.
d) To protect agricultural lands from the growth-inducing potential of the project, no
agricultural lands shall be assessed for construction of the road, and the road shall
be designed so as to avoid uncontrolled access into adjacent agricultural areas.
50
Land Use -Mello 1 Chapter 11-1
Exhibit "Y-1"
January 16, 2008
LCPA 07-06
Proposed Text Changes to Local Costal Program
(Bold, italicized words indicate text to be added and strikethrough words indicate text to be deleted)
a. All development must include mitigation measures for the control of urban runoff flow
rates and velocities, urban pollutants, erosion and sedimentation in accordance with the
requirements of the City's Grading Ordinance, Storm Water Ordinance, Standard Urban
Storm Water Mitigation Plan (SUSMP), Master City of Carlsbad Drainage Master Plan,
and the additional requirements contained herein. The SUS MP, dated April 2003 and as
amended, and the City of Carlsbad Drainage Master Plan Master Drainage Plan (1994)
are hereby incorporated into the LCP by reference. Development must also comply with
the requirements of the Jurisdiction Urban Runoff Management Program (JURMP) and
the San Diego County Hydrology Manual to the extent that these requirements are not
inconsistent with any policies of the LCP. Such mitigation shall become an element of
the project and shall be installed prior to the initial grading. At a minimum, such
mitigation shall require construction of all improvements shown in the City of Carlsbad
Master Drainage Master Plan between the project site and the lagoon (including the
debris basin), revegetation of all graded areas immediately after grading, and mechanism
for permanent maintenance if the City declines to accept the responsibility. Construction·
of drainage improvements may be through formation of an assessment district or through
any similar arrangement that allots costs among the various landowners in an equitable
manner.
b. Prior to making land use decisions, the City shall utilize methods available to estimate
increases in pollutant loads and flows resulting from proposed future development. The
City shall require developments to incorporate structural and non-structural best
management practices (BMP's) to mitigate the projected increases to pollutant loads and
minimize any increases in peak runoff rate.
c. Water pollution prevention methods shall be implemented to the maximum extent
practicable, and supplemented by pollutant source controls and treatment. Small
collection strategies located at, or as close as possible to, the source (i.e., the point where
water initially meets the ground) to minimize the transport of urban runoff and pollutants
offsite and into a municipal separate storm sewer system (MS4) shall be utilized.
d. Post-development runoff from a site shall not contain pollutant loads which cause or
contribute to an exceedance ofreceiving water quality objectives or which have not been
reduced to the maximum extent practicable.
e. Development projects should be designed to comply with the following site design
principals:
City of Carlsbad
1) Protect slopes and channels to decrease the potential for slopes and/or channels
from eroding and impacting storm water runoff.
2) To the extent practicable, cluster development on the least environmentally
7 Local Coastal Program t/
Land Use -Mello 1 Chapter 11-1
Exhibit "Y-1"
January 16, 2008
LCPA 07-06
Proposed Text Changes to Local Costa! Program
(Bold, italicized words indicate text to be added and strikethrough words indicate text to be deleted)
( 4) The area located west of Interstate 5 and north of Poinsettia Lane shall be designated for
visitor-serving or neighborhood commercial development according to Chapter 21.26 of the
Carlsbad Zoning Ordinance, provided that a minimum of35% is developed as visitor serving
uses.
Policy 2 -Drainage, Erosion Control
City of Carlsbad
a. All development must include mitigation measures for the control of urban runoff flow
rates and velocities, urban pollutants, erosion and sedimentation in accordance with the
requirements of the City's Grading Ordinance, Standard Urban Storm Water Mitigation
Plan (SUSMP), Master City of Carlsbad Drainage Master Plan, and the additional
requirements contained herein. The SUSMP, dated April 2003 and as amended, and the
City of Carlsbad Master Drainage Master Plan (1994) are hereby incorporated into the
LCP by reference. Development must also comply with the requirements of the
Jurisdictional Urban Runoff Management Program (JURMP) and the San Diego County
Hydrology Manual to the extent that these requirements are not inconsistent with any
policies of the LCP. Such mitigation shall become an element of the project and shall
be installed prior to initial grading. Mitigation shall also require construction of all
improvements shown in the Master City of Carlsbad Drainage Master Plan and
amendments thereto between the project site and the lagoon (including the debris basin),
revegetation of all graded areas immediately after grading, and a mechanism for
permanent maintenance if the City declines to accept responsibility. The ·offsite
drainage· improvements shall be reimbursable to Occidental by use of assessment
districts, development agreements or other appropriate means acceptable to the City.
b. Prior to making land use decisions, the City shall utilize methods available to estimate
increases to pollutant loads and flows resulting from proposed future development. The
City shall require developments to incorporate structural and non-structural best
management practices (BMP's) to mitigate the projected increases in pollutant loads
and minimize any increases to peak runoff rate.
c. Water pollution prevention methods shall be implemented to the maximum extent
practicable, and supplemented by pollutant source controls and treatment. Small
collection strategies located at, or as close as possible to, the source (i.e., the point
where water initially meets the ground) to minimize the transport of urban runoff and
pollutants offsite and into a municipal separate storm water system (MS4) shall be
utilized.
d. Post-development runoff from a site shall not contain pollutant loads which cause or
contribute to an exceedance of receiving water quality objectives or which have not
been reduced to the maximum extent practicable.
11 Local Coastal Program
Land Use -Mello 1 Chapter 11-1
Exhibit "Y-1"
January 16, 2008
LCPA 07-06
Proposed Text Changes to Local Costal Program
(Bold, italicized words indicate text to be added and strikethrough words indicate text to be deleted)
' (5) All undevelopable slopes shall be placed in open space easements as a condition of
development approval.
(6) a. All development must include mitigation measures for the control of urban runoff
flow rates and velocities, urban pollutants, erosion and sedimentation in accordance
with the requirements of the City's Grading Ordinance, Storm Water Ordinance,
Standard Urban Storm Water Mitigation Plan (SUSMP), Master City of Carlsbad
Drainage Master Plan, with the additions and changes adopted herein, such that a
natural drainage system is generally preserved for the eastern undeveloped
watersheds, but that storm drains are allowed for those western portions of the
watershed which have already been incrementally developed. The SUSMP, dated
April 2003 and as amended, the Master City of Carlsbad Drainage Master Plan
(1994) are hereby incorporated into the LCP by reference. Development must also
comply with the requirements of the Jurisdictional Urban Runoff Runoff
Management Program (JURMP) and the San Diego County Hydrology Manual to
the extent that these requirements are not inconsistent with any policies of the LCP.
b. Prior to making land use decisions, the City shall utilize methods available to estimate
increase in pollutant loads and flows resulting from proposed future development.
The City shall require developments to incorporate structural and non-structural best
management practices (BMP's) to mitigate the projected increases in pollutant loads
and minimize any increases in peak runoff rate.
c. Water pollution prevention methods shall be implemented to the maximum extent
practicable, and supplemented by pollutant source controls and treatment. Small
collection strategies located at, or as close as possible to, the source (i.e., the point
where water initially meets the ground) to minimize the transport of urban runoff and
pollutants offsite and into a municipal separate storm sewer system (MS4) shall be
utilized.
d. Post-development runoff from a site shall not contain pollutant loads which cause or
contribute to an exceedance ofreceiving water quality objectives or which have not
been reduced to the maximum extent practicable.
e. Development projects should be designed to comply with the following site design
primcipals:
City of Carlsbad
1) Protect slopes and channels to decrease the potential for slopes and/or
channels from eroding and impacting storm water runoff.
2) To the extent practicable, cluster development on the least
environmentally sensitive portions of a site while leaving the remaining
18 Local Coastal Program
Land Use -Mello II Chapter II-2
Exhibit "Y-1 "
January 16, 2008
LCPA 07-06
Proposed Text Changes to Local Costal Program
(Bold. italicized words indicate text to be added and strikethrough words indicate text to be deleted)
(5)
(6)
Policy4-4
Policy 4-5
Policy 4-6
Policy 4-7
Installation and Timing of Permanent Runoff and Erosion Control
Devices
Required Open Space Easements on Undeveloped Slopes
REMOVAL OF NATURAL VEGETATION
SOIL EROSION CONTROL PRACTICES
"SEDIMENT CONTROL" PRACTICES
FLOOD HAZARDS
(a) Storm Drainage Facilities in Developed Areas
(b) City's Grading Ordinance
(c) Storm Drainage Facilities in Undeveloped Areas
(d) Financing New Drainage Facilities
(e) 100-Year Floodplain
(t) City of Carlsbad Master Drainage Master Plan
Policy 4-8 SEISMIC HAZARDS
5. Public Works and Public Services Capacities
Policy 5-1
Policy 5-2
Policy 5-3
Policy 5-4
Policy 5-5
REGIONAL SEWAGE TRANSPORTATION SYSTEM
FUTURE SEWAGE TREATMENT
UNTREATED RECLAIMED WATER
TEN PERCENT RESERVE SEWAGE CAPACITY FOR COASTAL
DEPENDENT RECREATION FOR VISITOR-SERVING USES
POINSETTIA LANE
6. Recreation and Visitor-Serving Uses
City of Carlsbad 47 Local Coastal Program
Land Use -Mello II
LCPA 07-06
Proposed Text Changes to Local Costal Program
Chapter 11-2
Exhibit "Y-1"
January 16, 2008
(Bold. italicized words indicate text to be added and strikethrough words indicate text to be deleted)
POLICY3-2 BUENA VISTA LAGOON
Developments located along the first row oflots bordering Buena Vista Lagoon, including the parcel
at the mouth of the lagoon (See Exhibit 4.5, Page 75), shall be designated for residential development
at a density of up to 4 dwelling units per acre. Proposed development in this area shall be required to
submit topographic and vegetation mapping and analysis, as well as soils reports, as part of the coastal
development permit application. Such information shall be provided as a part of or in addition to any
required Environmental Impact Report, and shall be prepared by qualified professionals and in
sufficient detail to enable the City to locate the boundary of wetland and upland areas and areas of
slopes in excess of25%. Topographic maps shall be submitted at a scale sufficient to determine the
appropriate developable areas, generally not less than a scale of 1" -100' with a topographic contour
interval of 5 feet, and shall include an overlay delineating the location of the proposed project. Criteria
used to identify any wetlands existing on the site shall be those of Section 30121 of the Coastal Act
and based upon the standards of the Local Coastal Program mapping regulations, and shall be applied
in consultation with the State Department of Fish and Game.
Development shall be clustered to preserve open space for habitat protection. Minimum setbacks of at
least 100 feet from wetlands shall be required in all development, in order to buffer such sensitive
habitat areas from intrusion unless otherwise permitted pursuant to Policy 3-1.12. Such buffer areas,
as well as other open space areas required in permitted development to preserve habitat areas, shall be
permanently preserved for habitat uses through provision of an open space easement as a condition of
project approval. In the event that a wetland areas is bordered by steep slopes (in excess of 25%)
which will act as a natural buffer to the habitat area, a buffer area ofless than 100 feet in width may be
permitted.
The density of any permitted development shall be based upon the net developable area of the parcel,
excluding any portion of a parcel which is in wetlands.
Storm drain alignments as proposed in the City o/Carlsbad Master Drainage Master Plan which would
be carried through or empty into Buena Vista Lagoon shall not be permitted, unless such
improvements comply with the requirements of Sections 30230, 30231, 30233, and 30235 of the
Coastal Act by maintaining or enhancing the functional capacity of the lagoon in a manner acceptable
to the State Department of Fish and Game.
Land divisions shall only be permitted on parcels bordering the Lagoon pursuant to a single planned
unit development permit for the entire original parcel.
POLICY3-3 BATIOUITOS LAGOON
Erosion, drainage, and sedimentation of Batiquitos Lagoon were previously addressed, in the certified
Local Coastal Program prepared by the Coastal Commission for the areas subject to AB462 (Mello I
City of Carlsbad 72 Local Coastal Program
Land Use -Mello II ·e
LCPA 07-06
Proposed Text Changes to Local Costal Program
Chapter 11-2
Exhibit "Y-1 "
January 16, 2008
(Bold. italicized words indicate text to be added and strikethrough words indicate text to be deleted)
POLICY 3-4 GRADING AND LANDSCAPING REQUIREMENTS
In addition to the requirements of the model grading ordinanoe in the Carlsbad Master Drainage P-lan,
P~ermitted new development shall -alse comply with the following requirements:
a) All development must include mitigation measures for the control of urban runoff flow rates
and velocities, urban pollutants, erosion and sedimentation in accordance with the
requirements of the City's Grading Ordinance, Storm Water Ordinance, Standard Urban Storm
Water Mitigation Plan (SUSMP), Master City of Carlsbad Drainage Master Plan, and the
following additional requirements. The SUS MP, dated April 2003 and as amended, the City of
Carlsbad Master Drainage Master Plan (1994) are hereby incorporated into the LCP by
reference. Development must also comply with the requirements of the Jurisdictional Urban
Runoff Management Program (JURMP) and the San Diego County Hydrology Manual to the
extent that these requirements are not inconsistent with any policies of the LCP.
b) All graded areas shall be landscaped prior to October 1st of each year with either temporary or
permanent landscaping materials, to reduce erosion potential. Such landscaping shall be
maintained and replanted if not well-established by December 1st following the initial
planting.
c) Prior to making land use decisions, the City shall utilize methods available to estimate
increases in pollutant loads and flows resulting from proposed future development. The City
shall require developments to incorporate structural and non-structural best management
practices (BMP's) to mitigate the projected increases in pollutant loads and minimize any
increases in peak runoff rate.
d). Water pollution prevention methods shall be implemented to the maximum extent practicable,
and supplemented by pollutant source controls and treatment. Small collection strategies
located at, or as close as possible to, the source (i.e., the point where water initially meets the
ground) to minimize the transport of urban runoff and pollutants offsite and into a municipal
separate storm sewer system (MS4) shall be utilized.
e) Post-development runoff from a site shall not contain pollutant loads which cause or contribute
to an exceedance ofreceiving water quality objectives or which have not been reduced to the
maximum extent practicable.
f) Development projects should be designed to comply with the following site design principles::
1. Protect slopes and channels to decrease the potential for slopes and/or channels from
City of Carlsbad 74 Local Coastal Program
Land Use -Mello II -
LCPA 07-06
Proposed Text Changes to Local Costal Program
Chapter 11-2
Exhibit "Y-1"
January 16, 2008
(Bold. italicized w0rds indicate text to be added and strikethrough words indicate text to be deleted)
(e) Siting/Parking. Due to severe site constraints, innovative siting and design criteria (including
shared use of driveways, clustering, tandem parking, pole construction) shall be incorporated to minimize
paved surface area. Dwelling units shall be clustered in the relatively flat portions of the site.
(g) Roads in Open Space: Access roads shall be a permitted use within designated open space subject
to an approved coastal development permit, only when necessary to access flatter areas and when
designed to be the least environmentally damaging feasible alternative. Wildlife corridors shall be
required when necessary to facilitate wildlife movement through the open space area.
(h) Other Uses in Open Space: The designated open space on Planning Area D may be modified to
accommodate daycare facilities and RV parking which meet the following criteria, subject to an approved
coastal development permit:
1) In no case shall the designated open space corridor be less than 800 feet including the
desiltation basin on Planning Area E;
2) No development shall encroach into jurisdictional wetlands mapped by the ACOE;
3) The facilities shall be located on the least environmentally sensitive portion of the site and
within non-native grassland and/or disturbed agricultural area to the maximum extent
possible; and
4) The area utilized for these uses shall be the minimum size necessary to satisfy the
requirements of the City of Carlsbad Zoning Code.
(i) Water Quality:
a. All development must include mitigation measures for the control of urban runoff flow rates
and velocities, urban pollutants, erosion and sedimentation in accordance with the
requirements of the City's Grading Ordinance, Storm Water Ordinance, Standard Urban
Storm Water Mitigation Plan (SUSMP), Master Drainage Master Plan, and the following
additional requirements. The SUSMP, dated April 2003 and as amended, the City of
Carlsbad Master Drainage Master Plan (1994) are hereby incorporated into the LCP by
reference. Development must also comply with the requirements of the Jurisdictional Urban
Runoff Management Program (JURMP) and the San Diego County Hydrology Manual to the
extent that these requirements are not inconsistent with any policies of the LCP.
b. Prior to making land use decisions, the City shall utilize methods available to estimate
increases in pollutant loads and flows resulting from proposed future development. The City
shall require developments to incorporate structural and non-structural best management
practices (BMP's) to mitigate the projected increases in pollutant loads and minimize any
City of Carlsbad 79 Local Coastal Program
Land Use -Mello II
LCPA 07-06
Proposed Text Changes to Local Costal Program
Chapter II-2
Exhibit "Y-1"
January 16, 2008
(Bold. italicized words indicate text to be added and strikethrough words indicate text to be deleted)
3-8.10 Assessor's Parcel No. 215-050-44, 45, 46, 47 (Kevane)-Development shall be limited to a
maximum of 25% of the property, and shall be clustered on the western portion of the
property. No impacts to coast oak woodland, riparian areas or wetlands shall be allowed. A
wildlife corridor linkage oriented generally north-south shall be provided on the eastern
portion of the property, include the onsite coast oak woodland area, and be designed to
connect to neighboring properties with existing or potential wildlife corridor linkages.
Impacts to native habitat shall require onsite mitigation through restoration and/or creation of
habitat within the designated corridor linkage, in addition to any other required mitigation.
3-8.11 Assessor's Parcel No. 215-050-12 (Reiter)-Development shall be limited to a maximum of
25% of the property, and shall be clustered on the western portion of the property. No
impacts to coast oak woodland, riparian areas or wetlands shall be allowed A wildlife
corridor linkage oriented generally north-south shall be provided on the eastern portion of
the property, include the onsite coast oak woodland area, and be designed to connect to
neighboring properties with existing or potential wildlife corridor linkages. Impacts to
native habitat shall require onsite mitigation through restoration and/or creation of habitat
within the designated corridor linkage, in addition to any other required mitigation.
3-8.12 Assessor's Parcel No. 215-050-73 (Levatino)-Maximum 25% development clustered on the
southern portion of the property. Buffer widths may be reduced and/or additional impacts
may be allowed to the extent necessary to obtain site access, and/or to accommodate
Circulation Road improvements identified in the certified LCP. ·
The parcel specific standards listed above are adopted because hardline preserve boundary lines were
not established at the time of preparation of the HMP. The purpose of the standards is to ensure that
future development is sited to preserve the maximum amount of ES HA within the coastal zone, and
to establish a viable habitat corridor and preserve area in Zones 20 and 21. If the City, with the
concurrence of the wildlife agencies and the Coastal Commission through an LCP amendment,
subsequently approves a hardline preserve boundary for any of the above-described properties as
part of the HMP, then the onsite preservation included in the hardline preserve boundary shall apply.
4. GEOLOGIC, FLOODPLAIN, AND SHORELINE HAZARD AREAS
POLICY 4-1 COASTAL EROSION
I. Development Along Shoreline
a. For all new development along the shoreline, including additions to existing
development, a site-specific geologic investigation and analysis similar to t~at required
by the Coastal Commission's Geologic Stability and Blufftop Guidelines shall be
required; for permitted development, this report must demonstrate bluff stability for 7 5
City of Carlsbad 88 Local Coastal Program
Land Use -Mello II Chapter II-2
Exhibit "Y-1"
January 16, 2008
LCPA 07-06
Proposed Text Changes to Local Costal Program
(Bold. italicized words indicate text to be added and strikethrnugh words indicate text to be deleted)
years, or the expected lifetime of the structure, whichever is greater. Additionally,
permitted development shall incorporate, where feasible, sub-drainage systems to
remove groundwater from the bluffs, and shall use drought-resistant vegetation in
landscaping, as well as adhering to the standards for erosion control contained in the City
of Carlsbad Master Drainage Master Plan. A waiver of public liability shall be required
for any permitted development for which an assurance of structural stability cannot be
provided. All development must include mitigation measures for the control of urban
runoff flow rates and velocities, urban pollutants, erosion and sedimentation in
accordance with the requirements of the City's Grading Ordinance, Storm Water
Ordinances, Standard Urban Storm Water Mitigation Plan (SUSMP), Master City of
Carlsbad Drainage Master Plan, and the following additional requirements. The
SUSMP, dated April 2003 and as amended, the City of Carlsbad Master Drainage
Master Plan (1994) are hereby incorporated into the LCP by reference. Development
must also comply with the requirements of the Jurisdictional Urban Runoff Management
Program (JURMP) and the San Diego County Hydrology Manual to the extent that these
requirements are not inconsistent with any policies of the LCP.
b. Prior to making land use decisions, the City shall utilize methods available to estimate
increases in pollutant loads and flows resulting from proposed future development. The
City shall require developments to incorporate structural and non-structural best
management practices (BMP's) to mitigate the projected increases in pollutant loads and
minimize any increases in peak runoff rate.
c. Water pollution prevention methods shall be implemented to the maximum extent
practicable, and supplemented by pollutant source controls and treatment. Small
collection strategies located at, or as close as possible to, the source (i.e., the point where
water initially meets the ground) to minimize the transport of urban runoff and pollutants
offsite and into a municipal separate storm sewer system (MS4) shall be utilized.
d. Post-development runoff from a site shall not contain pollutant loads which cause or
contribute to an exceedance of receiving water quality objectives or which have not been
reduced to the maximum extent practicable.
e. Development projects should be designed to comply with the following site design
principals:
City of Carlsbad
1. Protect slopes and channels to decrease the potential for slopes and/or channels from
eroding and impacting storm water runoff.
2. To the extent practicable, cluster development on the least environmentally sensitive
portions of a site while leaving the remaining land in a natural undisturbed condition.
3. Preserve, and where possible, create or restore areas that provide important water
89 Local Coastal Program
Land Use -Mello II
LCPA 07-06
Proposed Text Changes to Local Costal Program
Chapter II-2
Exhibit "Y-1"
January 16, 2008
(Bold. italicized words indicate text to be added and strikethrough words indicate text to be deleted)
POLICY 4-3 ACCELERATED SOIL EROSION
Areas West ofl-5 and the Existing Paseo del Norte and Along El Camino Real Upstream of Existing
Storm Drains
For areas west of the existing Paseo del Norte, west ofl-5 and along El Camino Real immediately
upstream of the existing storm drains, the following policy shall apply:
a. All development must include mitigation measures for the control of urban runoff rates
and velocities, urban pollutants, erosion and sedimentation in accordance with the
requirements of the City's Grading Ordinance, Storm Water Ordinance, Standard Urban
Storm Water Mitigation Plan (SUSMP), Master City of Carlsbad Drainage Master Plan,
and the additional requirements contained herein. The SUSMP dated April 2003 and as
amended, the City of Carlsbad Master Drainage Master Plan (1994) are hereby
incorporated into the LCP by reference. Development must also comply with the
requirements of the Jurisdictional Urban Runoff Management Program (JURMP) and the
San Diego County Hydrology Manual to the extent that these requirements are not
inconsistent with any policies of the LCP. Such mitigation shall become an element of
the project, and shall be installed prior to the initial grading. At a mi.nimum, such
mitigation shall require construction of all improvements shown in the City of Carlsbad
Master Drainage Master Plan and amendments thereto between the project site and the
lagoon (including the debris basin), as well as: revegetation of graded areas immediately
after grading; and a mechanism for permanent maintenance if the City declines to accept
the responsibility. Construction of drainage improvements may be through formation of
an assessment district, or through any similar arrangement that allots costs among the
various landowners in an equitable manner.
b. Prior to making land use decisions, the City shall utilize methods available to estimate
increases in pollutant loads and flows resulting from proposed future development. The
City shall require developments to incorporate structural and non-structural best
management practices (BMP 's) to mitigate the projected increases in pollutant loads and
minimize any increases in peak runoff rate.
c. Water pollution prevention methods shall be implemented to the maximum extent
practicable, and supplemented by pollutant source controls and treatment. Small
collection strategies located at, or as close as possible to, the source (i.e., the point where
water initially meets the ground) to minimize the transport of urban runoff and pollutants
offsite and into a municipal separate storm sewer system (MS4) shall be utilized.
d. Post-development runoff from a site shall not contain pollutant loads which cause or
contribute to an exceedance of receiving water quality objectives or which have not been
City of Carlsbad 93 Local Coastal Program
Land Use -Mello II
LCPA 07-06
Proposed Text Changes to Local Costal Program
Chapter 11-2
Exhibit "Y-1 "
January 16, 2008
(Bold. italicized words indicate text to be added and strikethrough words indicate text to be deleted)
less than 10 acres, complete grading may be allowed only if no interruption
of significant wildlife corridors occurs.
f) Because north-facing slopes are generally more prone to stability problems
and in many cases contain more extensive natural vegetation, no grading or
removal of vegetation from these areas will be permitted unless all
environmental impacts have been mitigated. Overriding circumstances are
not considered adequate mitigation.
(3) Drainage and Erosion Control
City of Carlsbad
a. All development must include mitigation measures for the control of urban
runoff flow rates and velocities, urban pollutants, erosion and sedimentation in
accordance with the requirements of the City's Grading Ordinance, Storm Water
Ordinance, Standard Urban Storm Water Mitigation Plan (SUSMP), Master City
of Carlsbad Drainage Master Plan, and the additional requirements contained
herein. The SUS MP, dated April 2003 and as amended, and the City of
Carlsbad Master Drainage Master Plan (1994) are hereby incorporated into the
LCP by reference. Development must also comply with the requirements of the
Jurisdictional Urban Runoff Management Program (JURMP) and the San Diego
County Hydrology Manual to the extent that these requirements are not
inconsistent with any policies of the LCP.
b. Prior to making land use decisions, the City shall utilize methods available to
estimate increases in pollutant loads and flows resulting from proposed future
development. The City shall require developments to incorporate structural and
non-structural best management practices (BMP's) to mitigate the projected
increases in pollutant loads and minimize any increases in peak runoff rate.
c. Water pollution prevention methods shall be implemented to the maximum
extent practicable, and supplemented by pollutant source controls and treatment.
Small collection strategies located at, or as close as possible to, the source (i.e.,
the point where water initially meets the ground) to minimize the transport of
urban runoff and pollutants offsite and into a municipal separate storm sewer
system (MS4) shall be utilized.
d. Post-development runoff from a site shall not contain pollutant loads which cause
or contribute to an exceedance of receiving water quality objectives or which
have not been reduced to the maximum extent practicable.
e. Development projects should be designed to comply with the following site
98 Local Coastal Program
Land Use -Mello II -
LCPA 07-06
Proposed Text Changes to Local Costal Program
Chapter II-2
Exhibit "Y-1 "
January 16, 2008
(Bold. italicized words indicate text to be added and strikethrough words indicate text to be delete,d)
categories ofBMP's on the basis that the City finds them to be infeasible
or impracticable.)
2. Addition of new development categories as Priority Projects.
3. Addition of new coastal waters to the map of Environmentally Sensitive
Areas.
4. Reductions in the area of impervious surfaces used to designate a specific
category of Priority Project.
p. Any minor changes made pursuant to the above list shall be accompanied by a
finding that the changes will improve and better protect coastal water quality.
The City Engineer or Planning Director shall notify the Executive Director in
writing of any of the above listed changes. For any changes not included in the
above list, the City shall contact the Executive Director to determine whether an
LCP amendment is necessary, and if necessary, shall subsequently apply for an
LCP amendment for the changes.
( 4) Required Drainage or Erosion Control Facility Maintenance Arrangements:
Development approvals shall include detailed maintenance arrangements for
providing the ongoing repair and maintenance for all approved drainage or erosion-
control facilities.
(5) Installation & Timing of Permanent Runoff and Erosion Control Devices:
All permanent runoff-control and erosion-control devices shall be developed and
installed prior to or concurrent with any onsite grading activities.
(6) Required Open Space Easements on Undeveloped Slopes:
POLICY 4-4
All undevelopable slopes shall be placed in open space easements as a condition of
development approval.
REMOVAL OF NATURAL VEGETATION
When earth changes are required and natural vegetation is removed, the area and duration of exposure
.shall be kept at a minimum.
POLICY 4-5 SOIL EROSION CONTROL PRACTICES
City of Carlsbad
a. Soil erosion control practices shall be used against "onsite" soil erosion. These
include keeping soil covered with temporary or permanent vegetation or with
101 Local Coastal Program
Land Use -Mello II Chapter II-2
Exhibit "Y-1 "
January 16, 2008
LCPA 07-06
Proposed Text Changes to Local Costal Program
(Bold. italicized words indicate text to be added and strikethrough words indicate text to be deleted)
City of Carlsbad
mulch materials, special grading procedures, diversion structures to divert surface
runoff from exposed soils, and grade stabilization structures to control surface
water. All development must include mitigation measures for the control of urban
runoff flow rates and velocities, urban pollutants, erosion and sedimentation in
accordance with the requirements of the City's Grading Ordinance, Storm Water
Ordinance, Standard Urban Storm Water Mitigation Plan (SUS MP), Master City of
Carlsbad Drainage Master Plan, and the additional requirements contained herein.
The SUS MP, dated April 2003 and as amended, and the City of Carlsbad Master
Drainage Master Plan (1994) are hereby incorporated into the LCP by reference.
Development must also comply with the requirements of the Jurisdictional Urban
Runoff Management Program (JURMP) and the San Diego County Hydrology
Manual to the extent that these requirements are not inconsistent with any policies
of the LCP.
b. Prior to making land use decisions, the City shall utilize methods available to
estimate increases in pollutant loads and flows resulting from proposed future
development. The City shall require developments to incorporate structural and
non-structural best management practices (BMP's) to mitigate the projected
increases in pollutant loads and minimize any increases in peak runoff rate.
c. Water pollution prevention methods shall be implemented to the maximum extent
practicable, and supplemented by pollutant source controls and treatment. Small
collection strategies located at, or as close as possible to, the source (i.e., the point
where water initially meets the ground) to minimize the transport of urban runoff
and pollutants offsite and into a municipal separate storm sewer system (MS4)
shall be utilized.
d. :Post-development runoff from a site shall not contain pollutant loads which cause
or contribute to an exceedance of receiving water quality objectives or which have
not been reduced to the maximum extent practicable.
e. Development projects should be designed to comply with the following site
design principles:
1. Protect slopes and channels to decrease the potential for slopes and/or
channels from eroding and impacting storm water runoff.
2. To the extent practicable, cluster development on the least _
environmentally sensitive portions of a site while leaving the remaining
land in a natural undisturbed condition.
3. Preserve, and where possible, create or restore areas that provide
important water quality benefits, such as riparian corridors, wetlands and
102 Local Coastal Program
Land Use -Mello II -
LCPA 07-06
Proposed Text Changes to Local Costa! Program
Chapter 11-2
Exhibit "Y-1"
January 16, 2008
(Bold. italicized words indicate text to be added and strikethrough words indicate text to be deleted)
POLICY 4-6
City of Carlsbad
The City Engineer or Planning Director shall notify the Executive Director in
writing of any of the above listed changes. For any changes not included in the
above list, the City shall contact the Executive Director to determine whether an
LCP amendment is necessary, and if necessary, shall subsequently apply for an
LCP amendment for the changes.
"SEDIMENT CONTROL" PRACTICES
a. Apply "sediment control" practices as a perimeter protection to prevent offsite
drainage. Preventing sediment from leaving the site should be accomplished by
such methods as diversion ditches, sediment traps, vegetative filters, and sediment
basins. Preventing erosion is of course the most efficient way to control sediment
runoff All development must include mitigation measures for the control of urban
runoff flow rates and velocities, urban pollutants, erosion and sedimentation in
accordance with the requirements of the City's Grading Ordinance, Storm Water
Ordinance, Standard Urban Storm Water Mitigation Plan (SUSMP), Master City of
Carlsbad Drainage Master Plan, and the following additional requirements. The
SUSMP, dated April 2003 and as amended, and the City of Carlsbad Master
Drainage Master Plan (1994) are hereby incorporated into the LCP by reference.
Development must also comply with the requirements of the Jurisdictional Urban
Runoff Management Program (JURMP) and the San Diego County Hydrology
Manual to the extent that these requirements are not inconsistent with any policies
of the LCP.
b. Prior to making land use decisions, the City shall utilize methods available to
estimate increases in pollutant loads and flows resulting from proposed future
development. The City shall require developments to incorporate structural and
non-structural best management practices (BMP's) to mitigate the projected
increases in pollutant loads and minimize any increases in peak runoff rate.
c. Water pollution prevention methods shall be implemented to the maximum extent
practicable, and supplemented by pollutant source controls and treatment, Small
collection strategies located at, or as close as possible to, the source (i.e., the point
where water initially meets the ground) to minimize the transport of urban runoff
and pollutants offsite and into a municipal separate storm sewer system (MS4)
shall be utilized.
d. Post-development runoff from a site shall not contain pollutant loads which cause
or contribute to an exceedance ofreceiving water quality objectives or which have
not been reduced to the maximum extent practicable.
105 Local Coastal Program
Land Use -Mello II Chapter 11-2
Exhibit "Y-1 "
January 16, 2008
LCPA 07-06
Proposed Text Changes to Local Costal Program
(Bold. italicized words indicate text to be added and strikethrough words indicate text to be deleted)
BMP's or categories ofBMP's on the basis that the City finds them
to be infeasible or impracticable.)
2. Addition of new development categories as Priority Projects.
3. Addition of new coastal waters to the map of Environmentally
Sensitive Areas.
4. Reduction in the·area of impervious surfaces used to designate a
specific category of Priority Projects.
q. Any minor changes made pursuant to the above list shall be accompanied by a
finding that the changes will improve and better protect coastal water quality. The
City Engineer or Planning Director shall notify the Executive Director in writing of
any of the above listed changes. For any changes not included in the above list, the
City shall contact the Executive Director to determine whether an LCP amendment
is necessary, and if necessary, shall subsequently apply for an LCP amendment for
the changes.
POLICY 4-7 FLOOD HAZARDS
(a) Storm Drainage Facilities in Developed Areas
Storm drainage facilities in developed areas should be improved and enlarged according to the City of
Carlsbad Master Drainage Master Plan, incorporating the changes recommended in the LCP.
(b) City's Grading Ordinance
The City's grading ordinance should be amended to greatly reduce the extent of onsite and offsite
erosion due to construction activities. (See policies under Soil Erosion.) Although these are primarily
erosion control measures, they will help to prevent sedimentation in downstream drainage facilities.
(c) Storm Drainage Facilities in Undeveloped Areas
Drainage improvement districts shall be formed for presently undeveloped areas which are expected to
urbanize in the future. The improvement districts would serve to implement the City of Carlsbad
Master Drainage Master Plan. Upstream areas in the coastal zone shall not be permitted to develop
prior to installation of the storm drain facilities downstream, in order to assure protection of coastal
resources.
(d) Financing New Drainage Facilities
New drainage facilities, required within the improvement districts, should be financed either by some
form of bond or from fees collected from developers on a cost-per-acre basis.
City of Carlsbad 108 Local Coastal Program
Land Use -Mello II
LCPA 07-06
Proposed Text Changes to Local Costal Program
Chapter 11-2
Exhibit "Y-1 "
January 16, 2008
(Bold. italicized words indicate text to be added and strikethrough words indicate text to be deleted)
(e) 100-Y ear Floodplain
Development shall continue to be restricted in 100-year floodplain areas. Continuing the policy of
zoning 100-year floodplains as open space will permit natural drainage to occur without the need for
flood control channels. No permanent structures or filling shall be permitted in the floodplain and only
uses compatible with periodic flooding shall be allowed.
(f) Master Drainage Master Plan
Adopt the provisions of the City of Carlsbad Master Drainage Master Plan to ameliorate flood and
drainage hazards within the planning area.
POLICY 4-8 SEISMIC HAZARDS .
The provisions of the State Uniform Building Code are not entirely adequate for earthquake protection.
The City should continue to monitor the UBCs earthquake provisions and make recommendations for
improvement.
Most development in liquefaction-prone areas should have site-specific investigations done
addressing the liquefaction problem and suggesting mitigation measures. New residential
development in excess of four units, commercial, industrial, and public facilities shall have site-
specific geologic investigations completed in known potential liquefaction areas.
5. PUBLIC WORKS AND PUBLIC SERVICES CAPACITIES
POLICY 5-1 REGIONAL SEWAGE TRANSPORTATION SYSTEM
The planned improvements to the regional sewage transportation system should be undertaken and
completed. These improvements are necessitated by development beyond the coastal zone.
POLICY 5-2 FUTURE SEWAGE TREATMENT
Future treatment demands can be met by the combined effects of enlarging the Encina Water
Pollution Control Facility and implementing the City of Carlsbad Wastewater Reclamation Master
Plan. The City must participate in meeting growth demands beyond the coastal zone.
City of Carlsbad 109 Local Coastal Program
-Land Use -West Batiquitos Lagoon/Sammis Properties
LCPA 07-06
Proposed Text Changes to Local Costa! Program
Chapter 11-3
Exhibit "Y-1 "
January 16, 2008
(Bold, italicized words indicate text to be added and strikethrnugh words indicate text to be deleted)
5. Agricultural improvements which will aid in continuation of agricultural production within
the Carlsbad Coastal Zone, as determined by the Carlsbad City Council.
Note: The fee for the remaining 60 acres of non-prime agricultural land within the Poinsettia
Shores Master Plan was set with the approval of the Batiquitos Lagoon Educational Park
Master Plan at $5,000 per acre.
C. GRADING AND EROSION CONTROL
a. Because the area is located close to environmentally sensitive habitats, all development must
include mitigation measures for the control of urban runoff flow rates and velocities, urban
pollutants, erosion and sedimentation in accordance with the requirements of the City's Grading
Ordinance, Storm Water Ordinance, Standard Urban Storm Water Mitigation Plan (SUSMP),
Master City of Carlsbad Drainage Master Plan, and the following additional requirements. The
SUS MP, dated April 2003 and as amended, and the City of Carlsbad Master Drainage Master
Plan (1994) are hereby incorporated in the LCP by reference. Development must comply with
the requirements of the Jurisdictional Urban Runoff Management Program (JURMP) and the San
Diego County Hydrology Manual to the extent that these requirements are not inconsistent with
any policies of the LCP.
b. Drainage and runoff shall be controlled so as not to exceed the capacity of the downstream
drainage facilities or to produce erosive velocities and appropriate measures shall be taken on
and/or off the site to prevent the siltation of the Batiquitos Lagoon and other environmentally
sensitive areas.
c. All graded areas shall be hydroseeded prior to October 1st with either temporary or permanent
materials. Landscaping shall be maintained and replanted if not established by December 1st.
d. Grading plans shall indicate staking or fencing of open space areas during construction and shall
specifically prohibit running or parking earth-moving equipment, stockpiling or earthwork
material, or other disturbances within the open space areas.
e. Any necessary temporary or permanent erosion control devices required for the development of a
specific planning area, such as desilting basins, shall be developed and installed prior to any on,
or off,. site grading activities within the specific planning area requiring the mitigation, or,
concurrent with the grading, provided all devices required for that planning area are installed and
operating prior to October 1st, and installation is assured through bonding or other acceptable
means.
f. The developer must provide for the long-term maintenance of drainage improvements and
City of Carlsbad 135 Local Coastal Program
-Land Use -West Batiquitos Lagoon/Sammis Properties •·
LCPA 07-06
Proposed Text Changes to Local Costal Program
Chapter 11-3
Exhibit "Y-1 "
January 16, 2008
(Bold, italicized words indicate text to be added and strikethrough words indicate text to be deleted)
5. Agricultural improvements which will aid in continuation of agricultural production within
the Carlsbad Coastal Zone, as determined by the Carlsbad City Council.
Note: The fee for the remaining 60 acres of non-prime agricultural land within the Poinsettia
Shores Master Plan was set with the approval of the Batiquitos Lagoon Educational Park
Master Plan at $5,000 per acre.
C. GRADING AND EROSION CONTROL
a. Because the area is located close to environmentally sensitive habitats, all development must
include mitigation measures for the control of urban runoff flow rates and velocities, urban
pollutants, erosion and sedimentation in accordance with the requirements of the City's Grading
Ordinance, Storm Water Ordinance, Standard Urban Storm Water Mitigation Plan (SUSMP),
Master City of Carlsbad Drainage Master Plan, and the following additional requirements. The
SUSMP, dated April 2003 and as amended, and the City of Carlsbad Master Drainage Master
Plan (1994) are hereby incorporated in the LCP by reference. Development must comply with
the requirements of the Jurisdictional Urban Runoff Management Program (JURMP) and the San
Diego County Hydrology Manual to the extent that these requirements are not inconsistent with
any policies of the LCP.
b. Drainage and runoff shall be controlled so as not to exceed the capacity of the downstream
drainage facilities or to produce erosive velocities and appropriate measures shall be taken on
and/or off the site to prevent the siltation of the Batiquitos Lagoon and other environmentally
sensitive areas.
c. All graded areas shall be hydroseeded prior to October 1st with either temporary or permanent
materials. Landscaping shall be maintained and replanted if not established by December 1st.
d. Grading plans shall indicate staking or fencing of open space areas during construction and shall
specifically prohibit running or parking earth-moving equipment, stockpiling or earthwork
material, or other disturbances within the open space areas.
e. Any necessary temporary or permanent erosion control devices required for the development of a
specific planning area, such as desilting basins, shall be developed and installed prior to any on,
or off, site grading activities within the specific planning area requiring the mitigation, or,
concurrent with the grading, provided all devices required for that planning area are installed and
operating prior to October 1st, and installation is assured through bonding or other acceptable
means.
f. The developer must provide for the long-term maintenance of drainage improvements and
City of Carlsbad 135 Local Coastal Program
Land Use -East Batiquitos Lago.Hunt Properties • Chapter II-4
Exhibit Y-1
January 16, 2008
LCPA 07-06
Proposed Text Changes to Local Coastal Program
(Bold, italicized words indicated text to be added and strikethrough words indicate text to be deleted)
City of Carlsbad
cumulative development shall be implemented prior to development in accordance
with the following additional criteria:
1) Submittal of a runoff control plan designated by a licensed engineer qualified
in hydrology and hydraulics, which would assure no increase in peak runoff
rate from the developed site over the greatest discharge expected from the
existing undeveloped site as a result of a 10-year frequency storm. Runoff
control shall be accomplished by a variety of measures, including, but not
limited to, onsite catchment basins, detention basins, siltation traps, and
energy dissipators and shall not be concentrated in one area or a few
locations.
2) Detailed maintenance arrangements and various alternatives for providing the
ongoing repair and maintenance of any approved drainage and erosion
control facilities. ·
3) All permanent runoff and erosion control devices shall be developed and
installed prior to or concurrent with any onsite grading activities.
4) All areas disturbed by grading, but not completed during the construction
period, including graded pads, shall be planted and stabilized prior to October
1st with temporary or permanent (in the case of finished slopes) erosion
control measures and native vegetation. The use of temporary erosion
control measures, such as berms, interceptor ditches, sandbagging, filtered
inlets, debris basins, and silt traps shall be utilized in conjunction with
plantings to minimize soil loss frorn the construction site. Said plantings
shall be accomplished under the supervision of a licensed landscape architect
and shall consist of seeding, mulching, fertilization, and irrigation adequate
to provide 90% coverage within 90 days. Planting shall be repeated, if the
required level of coverage is not established. This requirement shall apply to
all disturbed soils, including stockpiles.
5) All development must include mitigation measures for the control of urban
runoff flow rates and velocities, urban pollutants, erosion and sedimentation
in accordance with the requirements of the City's Grading Ordinance, Storm
Water Ordinance, Standard Urban Storm Water Mitigation Plan (SUSMP),
Master City of Carlsbad Drainage Master Plan, and the following additional
requirements. The SUSMP, dated April 2003 and as amended, and the City
of Carlsbad Master Drainage Master Plan (1994) are hereby incorporated
into the LCP by reference. Development must also comply with the
requirements of the Jurisdictional Urban Runoff Management Program
(JURMP) and the San Diego County Hydrology Manual to the extent that
151 Local Coastal Program
• e
C_Lty of_ Ca_rtsbad __ ~
■;matt1 tt~M•l#·ffiiheill_u_l · --~~
,.
DISCLOSURE STATEMENT
Applicant's statement or disclosure of certain ownership interests on all applications which will require
discretionary action on the part of the City Council or any appointed Board, Commission or Committee.
The fo1Iowing information MUST be-disclosed at the time of application submittal. Your project cannot be
reviewed until this information is completed. Please print.
Note:
Person is defined as "Any individual, firm, co-partnership, joint venture, association, social club, fraternal organization, -
.-~ corporation, estate, trust, receiver, syndicate, in this and any other county, city and county, city municipality, district or
other political subdivision or any other group or combination acting as a unit."
Agents may sign this document; however, the legal name and entity of the applicant and property owner must be
provided below.
1. APPLICANT (Not the applicant's agent)
2.
Provide th·e COMPLETE, LEGAL names and addresses of ALL persons having a financial interest
in the application. If the applicant includes a corporation or partnership. include the names, title,
addresses of all individuals owning more than 10% of the shares. IF NO INDIVIDUALS OWN MORE
THAN 10% OF THE SHARES, PLEASE INDICATE NON-APPLICABLE (N/A) IN THE SPACE
BELOW If a publicly-owned corporation, include the names, titles, and addresses of the corporate
officers. (A separate page may be attached if necessary.)
Person Pltvt P /~'i' #It.. Corp/Part C 1-;?' O~ c.q.,z,1.,,~,1,to
Title 1Jt-J?urt c,rt t7'~611VtrPtZ-
Address tr, 1.f" Fi>-atro,ty ,tvG
OWNER (Not the owner's agent)
Title --------------
Address U JS" Fl}-a.11--011-Y lfi/f;
Provide the COMPLETE, LEGAL names and addresses of ALL persons having any ownership
interest in the property involved. Also, provide the nature of the legal ownership (i.e, partnership,
tenants in common, non-profit, corporation, etc.). If the ownership includes a corporation or
partnership, include the names, title, addresses of all individuals owning more than 10% of the
shares. IF NO INDIVIDUALS OWN MORE THAN 10% OF THE SHARES, PLEASE INDICATE
NON-APPLICABLE (NIA) IN THE SPACE BELOW. If a publicly-owned corporation. include the
names, titles, and aqdresses of the corporate officers. (A separate page may be attached if
necessa_ry.) >e.--e 4 t/a.clte....A..
Person __________ _ Corp/Part. _____ __._ _____ _
Title ------------Title _____________ _
Address _________ _ Address -------------
1 -6:-'JS_F_Si'_&_d.a_'J _ _:._.,.9f1_u_8 -. -Ci1/.f-.-oo-oi-:_:.,_, c-,A-9-2-oc-···e~ 1:1,; .. ;-;;76-0J_d_0_:?--~6-00-• -F.~-.x-~-76-0)_'5_0_2:--e.5--&r-•-•;,.•-;,.•-11.-i;i-.;;-;1.<1-~.sd.c:.:i.u:1 @
....
• •
3. NON-PROFIT ORGANIZATION OR TRUST
If any person identified pursuant to (1) or (2) above is a nonprofit organization or a trust, lis~ the
names and addresses of ANY person serving as an. officeF: .. or director of to~ nqn-profit
organization or as trustee or beneficiary of the. · -:~
Non Profit/Trust.________ Non Profit/Trust ___________ _
Title. ___________ _ Title _____________ _
Address. __________ _ Address -------------
.
4. Have you had more than $250 worth of business transacted with any member of City staff,
Boards, Commissions, Committees and/or Council within the past twelve (12) months?
D Yes @No If yes, please indicate person(s): __________ _
NOTE: Attach additional sheets if necessary.
I certify that all the above information is true and correct to the best of my knowledge.
. IL/~
Signature of owner/date Signature of applicant/date
Print or type name of owner Print or type name of applicant
Signature of owner/applicant's agent if applicable/date
Print or type name of owner/applicant's agent
H:ADMIN\COUNTER\DISCLOSURE STATEMENT 5/98 Page 2 of 2
VICINITY MAP
AGUA HEDIONDA & CALAVERA CREEKS
DREDGING AND IMPROVEMENTS
PROJECT NO. 3338-1
SOtJRCR Of TOPOGRAPHY
TOPOCRM'tfr SHO'fllf OH 1H£Sr PU.NS IJAS G£NERA1ID BY /oERJN. SUR\£Y IIITHODS
fROl,I IHFORllA1ICII GA»£11al OH OCT08£R 21, 2005 BY PHOTO CE'OOE1IC COOPCW.TI<»I. 10POCIUPHY SHO\IH HER£0N CClNroRlJS TD NA11CWAI. MIJ> ACCURACY ST»it)ARO$.
MJDIJICJH>J.TCPOGRAPHY SfiCIIIN OH 1H£S£ PI..AHS WAS GOo'ERAfEll BY A 5£COHD ,M:RW. SVR\£YM'llfl ON ~BY Il2MI/ SllfllfYC<JIPAHYFOR »£ AGUA HEDIOHOJ, <RED<. 1HIS HOI WORUAJ/Cli WAS PROw:ra> BY Ll"tE ~ INC. DH ..IJl.Y 0d 2000. ThTS RE\fSEtl TOPOGRAPHY R£Fl.£C15 INIDffll F'JNl.9fCD <RAOC FOR
SlfRGEHCYCffDCIHG 1HA1WASPfJ/:Fa{/,lfl) 8£TKDI {XXXXXXXX)I.HIERARJIYCO'lf'S. PCIYTHo.~W)EllOH~
cam1a. BASED FRC&I arr R£Q'.'IID OF S!.R',£'( NO. 17271 llf1I01 ts M'.:\O 1929 HOO~T>J. COOROOIA»: DATUIJ IS CAfXCIRNIA COOROIHATE' S'rSIDI BJ, \01SOO 1591JS(N!JJBJ)
1REE lOCAnOH Sl/R\f:Y IIN' INCORPORATED IH10 DRAMIHCS WAS ACO'.IIREZ) FROM RJCK
EHGIHWIJHGSTUO'f,TIJlll)~DATED~20XX.
(760)6a2-27J9
DATE OF PREPARATION
FCBRUARY2007
PROJECT StJllVARY
sTR££T-= s11rACREAGe """"""""
H/A H/A
ONE-FAJIILY Rf:SIDfHTIAl. (R-1)
0P£H SPAC! (OS)
RESIDEN11Al. /tlOBIU: HOME PARK (RMHP) PU.NN£D COUIJIJMT't (P-C)
DOSTINGGDERALPl..,IH. AGUA HED/DNDA maK -OP£H SPACE. {OS)
CAI.A~ CR£D< -R£SIDE:HTW. MEDIUM DOJS/TY {RM)
orsrwa ND PROPOSED UHJ use fUlJC llllAMl,C£ FAOUTY
APH: 168-«iO-Jf 1'3-05<HO 206-162-Jf 212-1'2-0I
STORM DRAIN EASEMENT
(VARIES)
I VARl~◄--9') I --~J-1-~,,--
STA 1-tOS • STA 5+00
STA5+ocl-STA20+00
STORM DRAIN EASEMENT (VARIES) I I __ ---/ \, _____ ,,
STA 20+00-STA 32+00
CALAVERA CREEK
TYPICAL SECTIONS
NOT1'0ac:ALE
CDP 06-04/HMPP 06-03/SUP 06-02
STORM DRAIN EASEMENT (VARIES 108'-120')
----/ -...... _______ __
STA 7-+00-STA 11+33
,.,-
STORM DRAIN EASEMENT
(VARIES 108'0120')
_I 1 ••• -~ ... , L ------,J---b--h/
STA 11+33-STA 16+00 ..,,
STORM DRAIN EASEMENT
(VARIES 132'-150')
I 1 ••• -~-•••• 1 I ~~ ~ / --~~
STA 18+00-STA 19+50
STORM DAAIN EASEMENT (VARIES 108'-120')
STORM DRAIN EASEMENT I r/ARl~~~-1~ I
----. 111 /,,,--~
STA20+00-STA-41+00
AGUA HEDIONDA CREEK
TYPICAL SECTIONS
HOTTOac.u
--
[:r' II CITY OF CARIBBAD I[~
AGUA HEDIONDA & CALAVERA CREEKS
DREDGING AND IMPROVEMENTS PROJECT
KEY LEGEND -SHEET 3 THRU 8 EX/STINGUTILITYDATA TABLE
• -!t ••• •• • EXISTING SEWER UHE
• •• • W ••• EXISTING WATERLINE
• •• RW· • •• EXISllNGRfCYCtEOWATERUNE
' ····~.O· ·· · EXISTINGSTORMDRAIN
• • WA• • EXISTJNGABANDONEDWATERLINE
••• ••• t-•• • EXlST1NG FUEL LINE:
······O·· ••• EXISTINGGASUNE
•• C".l\iV •• EXISTING CABLE TELEVISION LINE
f •••• • -EXISTING TELEPHONE LINE
OV"t-r • EXISTING OVERHEAD ElECTRJC LINE
• If ·• • EXISTING eLECTRIC LINE
IS)
0
EXISTING BOUNDARY LINE
EXISTINGRIGHTOFWAY
EXISTING EASEMENT
EXISTINGEAScMENTCENTERLINE
PROPOSED CREEK TOE
PROPOSED CREB<TOP
EXISTING RETAINING WAU.
REMOI/ERETAININOWNJ..
E:XISTING W.SONRYWN.J..
REMOVE MASONRY WALL
PROPOSED MASONRYWAU.
PROPOSED STAGING AAEA
REMOVE TREE
REMOVE TREE. BROWN & CAI.OWa.L
PROPOSED CONCRETE STRUCTURE
EXISTING TREE OR STUMP
EXISTING ROCK SLOPE PROTECTION '• ,._
PROPOSED ROCK SLOPE PROTECTION· • ~ _-.... , ..... '
DESCRIPTION
2<1•RWWATER.UNE(CMLC)
12"Alffl"AC900PVCWATERL1NE
WSTEEL WATERLJNE
12"PVCSEWER
tcr HP FUEL MAIN
<f"HP~LINE
16" HP FUEL LJNE
10 36"DIP WATERUNe
" ABANDONED 6"WATER LINE
12
13 ••SEWER ,, 1Z-SEWER
15 14"ST1:ELWATERLJNE
" 1T 42'RCPSTORMDRAJN
1B
4"SEMR
20 urA~AC900PVCWATERllNE
PROPOSED \IMAX &.OPS PROTECTION (>..._ = ':, 1~
.'·":', '":-,_ , '' ~ >--,__~~.,.-
. '~-,,·
REFERENCE DRAWING
CM.W.D. 333-:/6
CMWO. = C.M.WO.
_,
CM',W.D 85-101
CMW.D ....,,.
CM.W.D. ,.,_,
SWTAFE PACIFICPIPELJNES. INC 12U1
C.MW.D
SANTA FE PACIFICPJPEUNES. INC 126-15
CMWO as.to,
C.M.:WO,
RANCH0CAALSl3N)MHP
~~HILLSPHASEfllMPPLANSDWG.390.(J
C.M,W.O. 404-7
, ,
., I"
'' I
,,
CT" II CITY OF CARISBAD lr'TI
,--------.----rB=-=R~o=w~N~-AND-C~A-L~D~W=E~L~L~I I
O ·;;ZNC l ~~~i~:i INDEX MAP ==
LEGEND:
C) SEE SHEET 2 FOR EXISTING
UTUTYTABCE
l f
' : .J ~. • .-• e -----~-l--~----;--~----'··· , .. ; ... 25 --:i-;---------~-! ~-.. : _: ______ _ L ; . . ., ' l ' H. L: )~[. . .__[ -,
£ "i ] :
~
24+-00 25400 26+-00
DON' At4Dt DRIVE
i
I I ]
j
j
i . E
i If ;
i : :, 1:, ; i
l
'I
,·
''' ',·) -·r -s:
28+-00
.....
I !
-1.:-
. i ,·--·-·-----!--! ___ ,-____ _ -,--•·········-'······ '-,-
2e-,oo 31+-00 32+00 33+-00 34+-00
' .. t.~---~ ~:;,:?::."E]~;,,i~--•,L.:.':.~~~ ~-~~,;,;: ~ .:i~,
~DON Ri4'ROO DRIVE •' •
-4'"• •• ,. ,_,
..... _-·~ ( •,,., ', ', LIMITS OF EXCAVATION'
TOPOFSLOPE
_,,,
.,., ..
~l
BROWN_AHD CA,J,,DWELL 1.r.~ram
·45' r :--
o• f -~. "'' ••Mitt)"""
1. .L
~Tl-!
a5--~~-_: __ · ___ ---4••·1· ·········-: · ,
f
\' 35+00
z;Cll_ • ::i:uJ n:~ !;;:,
::.,
LEGEND·
;··-·····>··.-·
Q 6EESHEET2FOR EXISTING UT1UTY TABLE
i::r 11 CITY OF CARLSBAD 1m
AGUA HEDIONDA
STA 24+00 TO STA 35+00
I • i IF THIS BAR DOES L.=:.:=r'""''::::™:::=~===-1 ~iiii~~;;;;j;;;;;~~;;;~~~ 1 10 • ■ o111 NOT MEASURE 1" r f -..it1,mr ~¥r~rs SCALE f-":""""'•""'-~""'------'-----lliip1:=I\ ~1~ IJDRA•aNOj iL----------------------------~======================-1
• t
35,00
i
' ·-i 1··· -1
! 36,00
i ! if
l t
~
"AH LINE" STA 37♦09 EXIST18"PVC
37+00
REMOVE ANO REPLACE EXISTING CONCRETE HEADWALi,;
38+00
_ "Ai-lUNE"'STA,37+62
ST18'PVC REMOVE ANO REPL>,.CE'
3o+oo
EXl~TlNG CONCRETE HEADWAU. /
, ~o;L~'f'VATION'
' . l ~ ! '
SCALE• HQ~AO'
' VERT 1" •,4'
LIMITS OF EXCAVATION , ,fOEOF SLOPE 1 '
0CW ✓/MN ORIVE
4o+oo
'l l
41<00 42+00
.. '. ....... :◄s-L ...... ------, .
··+ r-·•: ..... · ;. ~-··35
1 i
43+00
.,
. ;
't
',· .; .... -... '
! I ·-{
LEGEND.
Cl SeESHEET2FOREXISTINGU'TllnYTABlE
CT'II CITY OF CARl13BAD ff~
-----~--~-B~R-O~W~N-AHD---,C=-A'"'L=-o=-w=-=E..,.L..,.L~ AGUA HEDIONDA .:r.rni,!l:, STA35+00TO STA41+98.71
...
r-----------___ ----35· ,··•········-··· ·••·· ···-·····• -------
0.34%
25
•••••• •-•>• J ·•-·•-•••h ••• ._., ,.,~-~~-""""""'"•"•" •• ·-·
GASIO~ DROP STRUCTURE
GABkJN DROP shu.1c11.1Re
FJNISHEDGRADE.
AT~
.... l. ...
GA.BIPN ~ STRUCT\JRE
' 0+00
'-al
JOIN PROPOSED TO E?(ISTlNG ,MASON,RY WALL
1+00 2+00
"CCUNE'"STA2+5300 , GAB10N DROP STRUCTURE
3+00 4+00 5+00 6+00 7+00
.. _ .. _ .. _ ... _ ... -_. _r'1~--" ~
-cct.JNE"STM+2S.EXIST,24"-CMP, ' /' , . REMOVEANORE?l:A.CE' -
EXIS1J~GCONCRETEH~
-4+00 r -"'I
---· ---~ --.--.---------
1TRT"CC"STA3•72 ,w .. (42.19')
FG•(3978j
=~PlA~TlERETAININGW~
1TRT"CC"STA3+23
TW•(42.35'} FGlll(40;66'),
uMITSoFEXCAv,.noN'
TOE OF S~OPE •
LIMITS OF EXCAVATION TOP OF,SLOPE
~9·,,
,_·:-,.~~--
.. ·.: !~,:'·_;:
,/I I , /·
D.OO)I
B+DO
;,
' ~ ' ' /2-,~~oo
, -ANisi-e> GRADE -;·~r~~:-
r --:.-... , .
,' -", .... /" '0 7 ,...._ ______ _. ______ _
9+00 10+00
I..AJ<E CA.LAVERA CREEK DRAINAGE EASEMENT OEDlCATEDANDACCEPTEOON PM 17985
/
PROPOSEOSTAGINGAREA 0 El<JSTINGMASONRYWAU. • PROlECT IN PLACE
STAl.+§0 EXIST 18"CMP REMOVE ANO REPLACE
EXISTING CONCRETE H&.OWAl..l.
' LlMrTS Of EXCAVATION
TOPOF'SLOPE
' LIMITS OF EXCAVATION
TOEOFSLOPE
.. ,,..,
~l
11+00
LEGEND
C) ~;1~00EXISTING
~.,.11 CITY OF CARLSBAD 1m
CALAVERA CREEK
STA 0+00 TO STA 11+00
55
35
11+00
-' -' -. -. . . ' ,
-·····•···· --:. •· -~~~§, __
, , , . -···· .... ! __ i1~Jh, r~-~ ,---------------/ , ·-·;·::~"",
----· -------✓-..:. __ '-------_..., __ : :----------._,_ ,,.--... _r---------
moo 13+00 14+00 15+00
LAKE CAI.AVERA.CREEK ORAJNAGE"EASEMENT
OEDICAlEDANDACC~DON'P~J7985
j.
1
16+00 17+00
"CC LIN!:: STA 18+80 00
g;y
HORtz.1••~ VERT.1•,.-4•
GABI DROP STRUCTURE
~·.· -,, _, ~-·,-·: --;;:-,-'_, , _, _'._---
EXISTINGSTI.IMP"
,f.ROTECT IN PLACE ~
16+00
i GlalON DROP STRUCTU~ :
I
l 19+00
'CC LINE" STA21+00.00
GABION DROP STRUCTURE
GABION OROP~uc:nJRE
GABION DROP STRUCTURE
21+00 22+00
/
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