CC SR 20240319 01 - Landslide Remediation Project Update
CITY COUNCIL MEETING DATE: 03/19/2024
AGENDA REPORT AGENDA HEADING: Regular Business
AGENDA TITLE:
Consideration and possible action to receive a report on the Portuguese Bend Landslide
Complex.
RECOMMENDED COUNCIL ACTION:
(1) Receive and file an update on:
a. Current conditions from the City Geologist on the Portuguese Bend
Landslide Complex;
b. Current trail conditions impacted by the Portuguese Bend Landslide
Complex within the Palos Verdes Nature Preserve;
c. Project activities responding to land movement within the Portuguese
Bend Landslide Complex;
d. Building inspections in the landslide area;
e. Portuguese Bend Landslide Remediation Project and associated grants;
f. The City’s request to the Governor to declare a State of Emergency for the
Greater Portuguese Bend Landslide Complex;
(2) Approve plans for emergency work in the Portuguese Bend Landslide consisting
of installing two emergency hydraugers with arrays and associated work, and
direct Staff to return with a construction contract for City Council consideration at
the April 2, 2024 meeting;
(3) Direct Staff to explore assisting the Abalone Cove Landslide Abatement District
and the Klondike Canyon Landslide Abatement District with in-kind services and
financial assistance in the form of a loan for landslide mitigation measures
prepared by a licensed geotechnical engineering company and return to the April
2, 2024 meeting for the City Council’s consideration; and
(4) Adopt Resolution No. 2024-___ thereby continuing the local emergency
declaration by 60 days until May 18, 2024 as established by Resolution No. 2023 -
47 adopted on October 3, 2023; and extended by Resolution No. 2023 -56 adopted
on November 14, 2023, Resolution No. 2023-61 adopted on December 19, 2023,
and Resolution No. 2024-05 adopted on February 6, 2024.
FISCAL IMPACT: If the recommended Council action items are approved, Staff will
come back on April 2, 2024 to request for an additional appropriation of $8 million for the
cost of hydraugers and $250,000 of estimated in-kind services and $3 of financial
assistance. While Staff continues to explore other grant funding sources, the additional
appropriation from the Capital Infrastructure Program (CIP) Fund will initiate the project
immediately. The CIP’s estimated fund balance at the end of FY 2023-24 is $30.4 million
with an unallocated amount of $25.4 million. Any potential grant sources received in the
future will be allocated to replenish the CIP Fund.
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Amount Budgeted: N/A
Additional Appropriation: N/A
Account Number(s): N/A
ORIGINATED BY: Ramzi Awwad, Director of Public Works
REVIEWED BY: Same as below
APPROVED BY: Ara Mihranian, AICP, City Manager
ATTACHED SUPPORTING DOCUMENTS:
A. Resolution No. 2024-___ Continuing Local Emergency (Page A-1)
B. Updated City Geologist Report and Landslide Map (Page B-1)
C. Plans for Two Emergency Hydraugers (Page C-1)
D. KCLAD 5-Step Plan (Page D-1)
E. Cal Water Projects (Page E-1)
F. Public Comments (Page F-1)
G. October 3, 2023 City Council Staff Report
H. November 14, 2023 City Council Staff Report
I. December 19, 2023 City Council Staff Report
J. February 6, 2024 City Council Staff Report
K. February 20, 2024 City Council Staff Report
BACKGROUND:
On October 3, 2023, the City Council conducted a discussion regarding the conditions of
the Greater Portuguese Bend Landslide Complex (Landslide Complex). After considering
information presented that evening, including public testimony, the City Council
unanimously adopted Resolution No. 2023-47 declaring the existence of a local
emergency within the geographic boundaries of the Landslide Complex. (Attachment G)
On November 14, 2023, December 19, 2023, and February 6, 2024, the City Council
received updates on conditions in the Landslide Complex and activities underway by
various entities to reduce landslide movement. The local emergency was extended at
each of those meetings by 60 days. (Attachments H, I, and J)
During the February 20, 2024 City Council meeting, in consideration of the unprecedented
changes in the landslide and the threat to public health , safety, and property; the City
Council directed Staff to complete the Final Environmental Impact Report (Final EIR) and
final engineering for the Portuguese Bend Landslide Remediation Project (Project) based
on the original concept design while continuing to study whether revisions could be made
to the project footprint to reduce the environmental impact. (Attachment K)
The City Council also authorized the Mayor to sign a letter to the Governor requesting his
consideration to declare a State of Emergency by invoking his emergency powers to
suspend or waive certain state requirements and to consider requesting the President
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declare a Federal Emergency Disaster (as well as a follow up joint letter with co -
signatures from other elected officials).
DISCUSSION:
Current Conditions in the Landslide Complex
The Landslide Complex encompasses four historically active landslide areas: the
Portuguese Bend Landslide (PBL), the Abalone Cove Landslide (ACL), the Klondike
Canyon Landslide (KCL), and the Beach Club Landslide (BCL). However, it also includes
areas outside of the historical boundaries of those known landslides, predominantly uphill
from the Portuguese Bend and Abalone Cove landslides, within the Ancient Portuguese
Bend Landslide Complex as mapped by various agencies (i.e., U.S. Geological Survey,
California Geological Survey) and other researchers.
Since the last update to the City Council on February 6, 2024, the City Geologist, Mike
Phipps of Cotton, Shires, and Associates, Inc. conducted additional field mapping
throughout the Landslide Complex; observed conditions at various site-specific locations
impacting residential neighborhoods, public infrastructure, and where trails have been
impacted; reviewed additional survey and rainfall data; and participated in the weekly
Portuguese Bend Landslide Complex Working Group meetings.
The City Geologist is reporting that movement continues to manifest at the ground surface
in the form of landslide scarps, fissures, grabens/sinkholes, tensional cracking, shear
zones, and thrust features. The ground movement features have continued to enl arge,
expand, widen, or grow depending on the type of feature and location. Rainfall and
accompanying infiltration and runoff into the Landslide Complex continue to adversely
affect the landslide area.
Upon review of ground movement survey data for separate monitoring surveys performed
on the Wayfarers Chapel between November 28, 2023 and January 27, 2024; the City
Geologist is reporting that movement velocities have accelerated on that property from
December 2023 to January 2024 with total land movement of 0.20 to 1.41 feet over the
two month period. This land movement is predominantly outside of the known western
boundary of the Abalone Cove Landslide and appears to be reactivation of a portion of
the mapped Ancient Portuguese Bend Landslide Complex.
In summary, the City Geologist findings continue to be that a large portion of the Ancient
Portuguese Bend Landslide Complex above the historically mapped PBL, ACL, and KCL
boundaries is involved in significant active landslide movement that is impacting trails,
roads, private property, and infrastructure. The current area of major landslide movement
involves approximately 675 acres of land as shown in the updated map . (Attachment B)
The City Geologist will be attending the March 19 meeting to provide the City Council and
public with an updated report since the February 6 meeting.
The City Council is being asked to receive and file an update on current conditions in the
Landslide Complex.
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Current Palos Verdes Nature Preserve Trail Conditions within the Landslide Complex
Large parts of the Palos Verdes Nature Preserve (Preserve) are located within the
Landslide Complex. Specifically, the Portuguese Bend Reserve, Abalone Cove Reserve,
and parts of the Forrestal and Filiorum Reserves are located within the Landslide
Complex. Many of these areas are seeing landslide -related damage including fissures,
rockslides, sink holes, unstable trails, and significant erosion. Out of concern for public
safety, and in consultation with the City Geologist, the City Manager has temporarily
closed large areas of these Preserve consisting of approximately 8 miles of passive
recreation trails. Staff continues to monitor these and other trails, and extensive repairs
will likely be needed before these trails can be reopened for public use after the area has
been stabilized.
Since the last update to the City Council, land movement has continued in the
Preserve; most notably in areas along Burma Road Trail and on Peppertree Trail,
Landslide Scarp Trail, Garden Trail, and in the surrounding landscapes. Portions of
Burma Road are no longer accessible by vehicle and are difficult to traverse on foot.
These areas saw additional significant damage during the recent February/March 2024
storms, including elevation changes, large increases in erosion, and additional and
expanded fissures. New developments have been observed in multiple locations in the
Preserve, most notably on Garden Trail, Ishibashi Trail, Burma Road Trail, and in the Lay
Reserve. These new developments tie in closely to the previously noted areas and show
the expansion and connectivity of land movement throughout the Preserve. Infrastructure
such as utility poles and water mains continue to be impacted in these areas. The photos
below show recent conditions.
The City has recently obtained drone footage of the Preserve and it will be posted on the
City’s website in the near future.
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Photo 1: Fissure along Burma Road to the east of Vanderlip and Eagle’s Nest Trails
Photo 2: Fissure and land slippage on Burma Road to the east of Vanderlip and Eagle’s Nest Trails
Photo 3: Large drops and fissure crossing Burma Road west of Water Tank Trail
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Photo 4: Steep drop off on Burma Road near Lower Rim Trail which has increased by a foot or more
Photo 5: Dropoff and fissure crossing Ishibashi Trail
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Photo 6: Rockslide covering Cliffside Trail
The City Council is being asked to receive and file an update on current Preserve trail
conditions in the Landslide Complex.
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Activities in the Portuguese Bend Landslide Complex
To respond to the increased movement, Staff formed a working group that meets weekly
(virtually) every Wednesday at 3 p.m. and posts meeting minutes to the City’s website
under the Land Movement homepage. The purpose of the working group is to coordinate,
develop and implement actions with participating members to minimize land movement
and its impact on private property as well as public infrastructure. Although many of the
measures are the responsibility of other parties, the City is proactively supporting and
facilitating various measures. The working group is comprised of the following:
• Abalone Cove and Klondike Canyon Landslide Abatement Districts (ACLAD and
KCLAD) and their geologist;
• California Water Service (Cal Water)
• Southern California Gas Company (SoCalGas)
• Southern California Edison (SCE)
• Seaview Residential Association
• Portuguese Bend Community Association
• Portuguese Bend Beach Club Homeowners Association
• Palos Verdes Peninsula Land Conservancy (PVPLC)
• Los Angeles County Public Works Sanitary Sewer Maintenance (LACPW)
• Los Angeles County Sanitation Districts (LACSD)
• City of Rolling Hills
• Rolling Hills Community Association
• Area residents
• Staff and consultant program manager, geologists, and civil engineers
A summary of key recent activities is presented below:
Fissure Filling:
A combined effort including the Recreation and Parks Department, Public Works
Department, ACLAD, and KCLAD continues to be underway to fill as many fissures
as possible (especially in advance of forecasted rain), with geologists providing
direction on priorities. Additionally, the PVPLC Volunteer Trail Crew is assisting with
maintenance to repair fissures and erosion on trails to keep as many trails within the
landslide area open as possible.
Roadway Repairs:
The City continues to inspect Palos Verdes Drive South (PVDS) and roadways in the
Seaview Neighborhood on a regular basis. Repairs continue to be conducted as
needed, particularly on PVDS.
Staff, through consultants, performed a review of heavy vehicle restrictions on PVDS
with respect to geotechnical impacts on the roadway, particularly at the area locally
known as the “Ski Jump”. Because the impact of a vehicle on the road structure is
dependent on the speed, the geotechnical engineering consultant’s review
recommended certain speed limits based on vehicle classification. The review
concluded that light vehicles should be restricted to a speed limit of 45 miles per hour,
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heavy vehicles should be restricted to a speed limit of 35 miles per hour, and very
heavy vehicles (three or more axles) should be prohibited. PVDS already has a speed
limit of 35 miles per hour, therefore the speed limit restrictions are already in effect.
Additionally, the use of PVDS as a haul route is prohibited, therefore, the heavy vehicle
restriction is already in effect. Additional signage reinforcing this condition will be
installed in the coming weeks. Overall signage on PVDS is also being reviewed, to
include a traffic engineering and geometric conditions analysis. Signage modifications
will be made, if recommended by the City’s traffic engineering consultants.
Overall, it has become apparent that the “ski jump” is a separate lobe of the PBL that
is breaking off. The ground on both sides of the rift/scarp at the ski jump is moving,
with the east side dropping relatively faster than the west side. The elevation
difference at this break is increasing rapidly and jeopardizing PVDS. It is possible that
PVDS will need to be closed in the near future because it could become unsafe.
Therefore, the City’s consultants are developing construction documents to regrade
the road, which may require a temporary closure of PVDS. In the event PVDS has to
be closed, staff is exploring if a detour route can be developed. PVDS typically
accommodates 15,000 daily trips.
The regrading is likely to be accomplished by building up the east side of the “ski jump”
and even potentially cutting the west side. The City is exploring building up the east
side using innovative materials such as geofoam blocks, which are synthetic
lightweight blocks with similar compression strength as traditional fill materials. The
design will be very closely coordinated with the Los Angeles County Sanitation
Districts to carefully consider impacts on the sanitary sewer trunk lines.
A construction plan is being developed and will be presented to the City Council for
approval consideration on April 2, 2024.
Water Distribution Pipes:
In the Portuguese Bend Community Association neighborhood (PBCA), Cal Water
started construction to bring certain water distribution pipes above ground. Work
started on bringing a segment of watermain at Clovetree Place and near Cinnamon
Lane above ground. Installing swing joints on existing above-ground water lines on
PVDS south of Wayfarers Chapel has also started. These projects are expected to be
complete by the end of March 2024. Cal Water is continuing planning work on several
other projects including bringing the water main at Vanderlip Drive near Vanderlip Trail
as well as between PVDS and Yacht Harbor Drive above ground, installing swing
joints throughout Narcissa Drive, and replacing watermains in the Seaview
neighborhood. (Attachment E)
Sanitary Sewers:
Inspection and repair of the underground sanitary sewers in the Seaview
neighborhood is being regularly conducted by the Los Angeles County Public Works,
who maintains and operates the system. Due to repeated sanitary sewer breaks in
certain areas, the City is discussing possibly re-routing certain segments of the sewer
to avoid the areas of greatest movement.
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Utility Poles in Preserve:
SCE is currently engaged in a project to remove 40 de-energized utility poles from the
Portuguese Bend Reserve because the land movement has made ongoing
maintenance of these poles untenable. The work is occurring in consultation with the
City Geologist and includes the use of crews with all-terrain type vehicles as well as
helicopters (when approved by the City Manager). The helicopter staging area is
located adjacent to the Forrestal Reserve off Main Sail (Intrepid) Drive. The schedule
is variable depending on field conditions and notification is provided to nearby HOAs
whenever possible.
Land Movement Surveying:
Staff ordered a GPS land movement survey of select locations representative of the
Landslide Complex in February 2024 to understand land movement rates in
comparison to recent surveys (January 2024, December 2023, and October 2023).
Due to ongoing rain and resultant ground conditions limiting access, the survey was
conducted in early March 2024 and a report is being developed for public distribution,
which is expected to occur in late March 2024. Initial raw data has been provided to
the City Geologist for his early review.
Staff continues to coordinate with the City Geologist and Land Surveyor to identify
whether additional monitoring points are warranted in response to increased and
expanded land movement.
KCLAD Activities
KCLAD now has a total of 4 operational wells which are pumping a total of
approximately 225 gallons per minute at the time of publication of this report. A fifth
well is currently being repaired and is expected to become a productive pumping well.
The tarps installed to prevent water infiltration at the high priority Klondike Canyon
Landslide boundary fissure continues to be maintained by City crews on a regular
basis, especially in advance of forecasted storms.
The City and KCLAD have been meeting with the Los Angeles County Flood Control
District (LACFCD), which has jurisdiction over Klondike Canyon, to discuss surface
drainage in Klondike Canyon to minimize recharging the water table thereby reducing
landslide movement. LACFCD is peer reviewing drainage solutions proposed by
KCLAD for Klondike Canyon to reduce surface water infiltration and resultant land
movement. The City shared available information with LACFCD and will continue to
coordinate with LACFCD to facilitate their peer review.
ACLAD Activities
Four City-funded dewatering wells south of PVDS that were recently installed are
operational. Additionally, two ACLAD-funded wells north of PVDS have been installed,
with power and drainage lines scheduled to be connected in March .
ACLAD and the City have cleared vegetation to provide access to the Kelvin Canyon
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Spring and are now assessing potential actions to prevent surface water from
infiltrating into the ground and contributing to land movement by recharging the water
table.
The City and ACLAD have been meeting with LACFCD, which has jurisdiction over
Altamira Canyon, to discuss Altamira Canyon as it relates to reducing landslide
movement. LACFCD is peer reviewing the Altamira Canyon Drainage / Erosion
Control project study report prepared by the City (through tis consultant Harris &
Associates, Inc.). The City shared available information with LACFCD and will
continue to coordinate with LACFCD to facilitate their peer review.
The City Council is being asked to receive and file an update on activities in the Landslide
Complex related to the emergency declaration.
Building Inspection Update
Building Division Staff have been proactively conducting windshield inspections of the
residential neighborhoods (PBC, Seaview, and PBCA) within the landslide complex
multiple times per week to monitor conditions particularly structures. Staff have also
visited commercial/institutional sites to evaluate the safety of the structures. After
discussions held during site visits to Wayfarers Chapel, on February 15, 2024, the
leadership of that facility chose to voluntarily close access to the site to address the
shifting conditions. The Building Division has visited the Portuguese Bend Nursery School
and determined that facility is safe to continue operations.
To date, the City’s Building Official has red-tagged two homes in the Seaview
neighborhood due to structural damage sustained as a result of land movement. No other
structures have been yellow- or red-tagged within the landslide complex which limits
and/or prohibits occupancy. It is the City’s obligation to ensure and protect public health
and safety. Accordingly, site and building inspections will occur when warranted with
voluntary compliance, unless an inspection warrant is deemed necessary.
The City Council is being asked to receive and file an update on building inspections in
the Landslide Complex.
Portuguese Bend Landslide Remediation Project and Associated Grants
On February 20, 2024, Staff presented the City Council with an update on the final
engineering and final Environmental Impact Report (EIR) for the Portuguese Bend
Landslide Remediation Project (Project), which consists of the following components:
• Infill surface fractures (fissures) to prevent storm water runoff from easily becoming
part of groundwater.
• Install surface drainage systems, including natural swales, to convey storm water
runoff to the ocean and prevent it from becoming part of the groundwater.
• Install hydraugers to extract underground artesian water and reduce pressure to
slow down landslide movement.
In light of current conditions in the Landslide Complex, the City Council directed Staff to
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expedite the final EIR and complete final engineering based on the original concept
design rather than re-analyzing the project to determine if changes could be made to
reduce environmental impact of the project. This approach does not preclude future
changes to the design to reduce the environmental impact.
The City’s EIR consultant, LSA has been working on completing the Final EIR while the
City’s design consultant, Geo-Logic Associates (GLA), has been working on completing
the final engineering. Based on the progress to date, Staff expects to present the final
engineering documents and the Final EIR for the City Council’s consideration in May
2024.
Upon certification of the Final EIR and approval of the final engineering documents, the
permitting process will begin. Staff have already been holding meetings with some permit
agencies, including the California Coastal Commission,the California Department of Fish
and Wildlife, and U.S. Fish and Wildlife to alert them of the dire conditions being faced
and request that they expedite permits. Meetings with other permit agencies such as the
Regional Water Quality Control Board and the United States Army Corps of Engineers
will be scheduled shortly. Based on early discussions with the various permit agencies
and the State of Emergency proclaimed by the Governor, Staff expects the permitting
process with these agencies to be significantly expedited. An estimate of the duration of
permitting is still being developed.
In January 2023, the City submitted an application to the Federal Emergency
Management Agency’s (FEMA) Building Resilient Infrastructure and Communities (BRIC)
FY22 cycle grant program to fund 70%, or $23 million, of the project’s estimated cost of
approximately $33 million. The BRIC program requires the balance of the project cost to
be funded through non-federal sources.
The City’s BRIC grant was vetted, and subsequently submitted to FEMA by the California
Governor’s Office of Emergency Services (CalOES), the administrators of the grant for
California on behalf of FEMA. On August 28, 2023, FEMA announced the selection of
124 projects, from a total of 803 applications, for the BRIC National Competition, including
the City’s project with $23 million being allocated, not obligated, for the City’s project . This
means that the projects met the basic eligibility requirements and enter the next phase of
the awards review process. This includes a programmatic review before making a final
funding decision. The review process, including environmental, is expected to have a
duration of two to three years, at which point funding would be obligated. The final step
in the process leading up to construction is the solicitation of construction bids, which is
expected to have a duration of up to three months including advertising of the project and
execution of a construction contract. City Staff are meeting regularly with the CalOES and
FEMA project team to ensure the review process is proceeding seamlessly and to identify
any potential measures to expedite the process to allow remediation work to stabilize the
landslide sooner than later.
Additionally, on February 20, 2024, the office of Los Angeles County Supervisor Janice
Hahn pledged $5 million towards the City’s landslide remediation.
Separate from the BRIC grant, the City applied for a Legislative Pre -Disaster Mitigation
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(LPDM) grant. The City was selected for a $2 million dollar LPDM grant through Senator
Feinstein’s Office. Because the 30% funding match for the BRIC grant cannot be from
other federal sources, the LPDM grant is being applied towards the Palos Verdes Drive
South at Peppertree Drive Drainage Project. This project will rebuild the drainage system
in the area to convey stormwater runoff to the ocean rather than allow it to infiltrate into
the ground and contribute to land movement, as it currently does.
The City Council is being asked to receive and file an update on the Portuguese Bend
Landslide Remediation Project and associated grants.
Emergency Measures for the Portuguese Bend Landslide
Due to the alarming increase in the rate of land movement in the Landslide Complex, the
City is developing plans to implement certain components of the Portuguese Bend
Landslide Remediation Project discussed above as emergency stabilization measures.
GLA recommends the immediate installation of Hydrauger A1 from the Portuguese Bend
Landslide Remediation Project, to extract artesian water creating pressure and
contributing to land movement, as the most beneficial immediately available action (see
map below). However, because of the current rate of movement, GLA recommends
relocating Hydrauger A1 to the turn-out area adjacent to the formerly known Gateway
Park, adjacent to PVDS. This is because the area is stable, easily accessible from PVDS,
and drainage lines can be efficiently directed to Klondike canyon where they continue into
a pipe under PVDS. This new location is now referred to as Hydrauger E1 as shown in
Exhibit 1 (see map below). In advance of this work, borings will need to be taken in vicinity
of the hydrauger arrays to validate modelling calculations. (Attachment C)
Additionally, GLA also recommends the immediate installation of Hydrauger A2 from the
Portuguese Bend Landslide Remediation Project, or another array in very close proximity
as shown in Exhibit 2, to help capture water that has infiltrated into the ground at the top
of the Portuguese Bend Landslide. This hydrauger array is now referred to as Hydrauger
E2 as shown in Exhibit 1. (Attachment C)
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Exhibit 1: Conceptual Locations of Hydraugers E1 and E2
Attached are the project plans for the proposed emergency work (Attachment C). If
approved this evening, Staff will bring the construction contract for the City Council’s
consideration at its April 2, 2024 meeting. If the construction contract is approved,
construction is anticipated to begin in May. The estimated cost to install Hydraugers E1
and E2 is a total of approximately $8 million.
In considering funding options for the proposed emergency work, a criterion of the BRIC
grant is that work cannot commence in the project boundary until final award of the grant
because it could change the benefit-cost analysis (BCA), which is a fundamental criterion
of the grant evaluation. Proposed Hydraugers E1 and E2 are proposed to extend into the
project boundary to be most effective and could change the BCA. Therefore, the City has
requested that FEMA allow the Portuguese Bend Landslide Remediation P roject
boundaries to be re-drawn accordingly and the BCA to be re-calculated. On March 11,
2024, the City was notified that FEMA agreed to this request, which means that
proceeding with implementation of Hydraugers E1 and E2 as emergency work does not
eliminate the Portuguese Bend Landslide project from BRIC grant award eligibility.
However, FEMA also notified the City that Hydraugers E1 and E2 are not eligible for
funding through FEMA’s hazard mitigation assistance grant programs, including the BRIC
grant. But that doesn’t preclude the emergency work from being funded through other
assistance programs.
Alternatively, the FEMA disaster recovery program is a potential avenue for receiving
reimbursement for the costs of Hydraugers E1 and E2, which are estimated be in the
range of a total cost around $8 million.
On February 4, 2024, Los Angeles County and the Governor both proclaimed a State of
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Emergency due to the early February 2024 atmospheric river. The early February 2024
storms may also become a federal disaster, in which case emergency stabilization
measures may be eligible for funding. In light of this, the City collaborated with ACLAD
and KCLAD to submit cost estimates for its Initial Damage Estimate (IDE) on our local
response and recovery to the storms. The IDE was submitted to Los Angeles County
Office of Emergency Management (LACOEM) for inclusion in the County’s Preliminary
Damage Assessment (PDA) that was submitted to CalOES.
Among other response and recovery costs, t he City’s IDE requested disaster recovery
funds from CalOES and FEMA for Hydraugers E1 and E2 as well as the re-grading of
PVDS, depending on which category is included in the federal disaster proclamation, if
there is one.
The City is also exploring amending the January-March 2023 winter storms
reimbursement request to FEMA as part of the Governor’s State of Emergency and the
President’s proclaimed Federal Disaster, in the event that the early February 2024 storms
are not declared a federal disaster. The amendment would be on the basis that the
damages were incurred as a result of the January-March 2023 winter storms, but that the
extent of those damages and emergency measures did not become clearly known until
after the initial damages were submitted by the City.
Staff is exploring other funding reimbursement options such as the $5 million pledge by
Los Angeles County Supervisor Janice Hahn or applying congressionally directed
spending grants (if they do not conflict with FEMA requirements).
The City Council is being asked to approve the plans for Hydraugers E1 and E2 this
evening. Should the City Council approve the plans, Staff will obtain bids and present a
construction contract to the City Council for approval consideration on April 2, 2024. While
Staff continues to explore other grant funding sources, an additional appropriation of
approximately $8 million from the Capital Infrastructure Program (CIP) Fund will also be
requested on April 2, 2024 to initiate the project immediately. The CIP’s estimated
unallocated fund balance at the end of FY 2023-24 is $25.4 million. Any grant sources
received in the future will replenish the CIP Fund.
ACLAD and KCLAD Assistance
ACLAD and KCLAD, which are Geologic Hazard Abatement Districts (GHADs), were
created with the authority and responsibility to address and mitigate land movement within
their boundaries. These GHADs are governmental districts, independent of the City,
formed for the prevention, mitigation, abatement, or control of a “geologic hazard”, which
is defined as an actual or threatened landslide, land subsidence, soil erosion, earthquake,
fault movement, or any other natural or unnatural movement of land or earth. The GHADS
have the ability to assess properties within their districts to fund their activities.
To date, the City has been coordinating very closely with the GHADs on their various
mitigation activities. Due to the severity of the emergency, Staff recommends that the City
Council direct Staff to directly assist ACLAD and KCLAD by providing in-kind services
such as geology, engineering, and project management; as well as financial assistance
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in the form of no-interest loans or grants.
KCLAD shared with Staff a proposed 5-step plan to significantly reduce movement in the
Klondike Canyon landslide with a cost estimated by KCLAD to be $5.4 million (Attachment
D). Staff recommends that the City Council direct Staff to explore how the City could
provide financial assistance to KCLAD to implement this plan and return with details for
the City Council’s approval consideration on April 2, 2024. Staff recommends that the
financial assistance be conditioned upon the plan being endorsed by a licens ed
geotechnical engineering company as assurance that the plan will achieve its intended
goals. Staff is expecting a similar plan from ACLAD and recommends the same approach.
Any financial assistance, at approximately $3 million in total, considered by the City would
be funded from the estimated unallocated fund balance of $25.4 million in the CIP Fund.
ACLAD and KCLAD are requesting reimbursement for as part of the disaster declarations
noted earlier in this report. As political subdivisions of the State, the GHADs are eligible
for such funding. Additionally, the GHADs are exploring County, State, and Fe deral
funding assistance, including grants.
Finally, it is important to note that KCLAD has indicated to Staff that they are investigating
an increase in assessments of properties in the district to replenish their reserves.
The City Council is being asked to direct Staff to return on April 2, 2024 with details of
funding assistance to the GHADs, contingent upon their landslide mitigation plans being
endorsed by a licensed geotechnical engineering company.
State of Emergency Declaration
On February 20, 2024, the City Council authorized the Mayor to request the Governor
declare a State of Emergency by suspending and/or waiving certain state requirements
for work to stabilize the Landslide Complex due to the immediate threat to public safety,
and consider requesting the President declare a Federal Emergency Disaster. Such a
declaration would allow the City to streamline or bypass permitting for measures to reduce
land movement.
The City submitted the request to the Governor, following the process of submitting the
request to the LACOEM, who then submits the request to CalOES on behalf of the City.
The City did not request financial assistance as part of the request to the Governor
because such a request would take the Governor’s Office a significant amount of time to
process and time is of the essence for the emergency work to commence immediately to
stabilize the area due to the immediate threat to public safety.
On February 23, 2024, City Staff met with the Director of CalOES, Nancy Ward; her staff;
the Director of LACOEM, Kevin McGowan; and his staff, to discuss the City’s request. It
was at this virtual meeting that the City was notified that the City’s request was covered
under the February 4, 2024 State of Emergency proclaimed by the Governor for 8
counties, including Los Angeles County. City Staff was informed that state permitting
requirements were relaxed and/or suspended, and would follow emergency orders f or
work needed to stabilize the landslide.
16
At the February 20 meeting, the City Council also directed staff to have a joint letter signed
by the City’s county, state and federal representatives supporting the City’s request for
the Governor to declare a state of emergency and to request a federal disaster to be
declared. While collecting signatures for the joint letter, the letter was no longer needed
because a determination by the Governor was made.
As previously reported, in response to the February 2024 storms, the city submitted an
IDE to the LACOEM, detailing the financial impact on both the City as well as ACLAD and
KCLAD. This submission is required to be considered for federal assistance related to the
February 2024 storms via FEMA. While the approval process is ongoing, the City is
diligently documenting preliminary expenses related to landslide stabilization efforts
aimed at protecting life and property. It is anticipated that the Governor will seek a federal
disaster declaration once the County's comprehensive preliminary damage assessment
(PDA) surpasses the necessary threshold.
Should a federal disaster be declared, FEMA offers two principal types of assistance
following major disasters The first is Individual Assistance (IA) which supports directly
impacted households and businesses through various means, including grants for
temporary housing and emergency home repairs. The U.S. Small Business
Administration also offers low-interest disaster loans to help individuals and businesses
recover from the disaster. The second is Public Assistance (PA) which focuses on
repairing or replacing damaged public facilities and infrastructure, with FEMA covering at
least 75% of eligible costs and the remaining portion shared by state and local
governments. The PA program aims to restore essential services and infrastructure to
their pre-disaster condition.
The City Council is being asked to receive and file this update report on the City’s request
to the Governor to declare a State of Emergency for the Greater Portuguese Bend
Landslide Complex
Extension of the Local Emergency Declaration
On October 3, 2023, the City Council adopted Resolution No. 2023-47 declaring a local
emergency. The emergency declaration is deemed to continue to exist until its termination
is proclaimed by the City Council in accordance with law. Government Code § 8630
requires the City Council to review of the need for continuing the local emergency at least
once every 60 days until the City Council determines the local emergency within the
geographic boundaries of the Landslide Complex has been abated or mitigated to
insignificance. At this time, the City Council is being asked to extend the local emergency
declaration an additional 60 days through May 18, 2024, which does not require a public
hearing. The state of emergency was continued by the City Council on Novembe r 14,
2023, pursuant to Resolution No. 2023-56, again on December 19, 2023, pursuant to
Resolution No. 2023-61, and again on February 6, 2024, pursuant to Resolution No.
2024-05. If extended this evening, the Council would consider renewing the local
emergency declaration again during the next landslide update on May 07, 2024.
The City Council is being asked to adopt Resolution No. 2024 -__ thereby extending the
17
Declaration of Local Emergency by 60 days (Attachment A).
ADDITIONAL INFORMATION:
Coordination with the City of Rolling Hills
The Flying Triangle Landslide (FTL) in the City of Rolling Hills is one of the five landslides
that make up the greater Landslide Complex. The FTL is situated above the KCL and
drains into Klondike Canyon. City officials from Rolling Hills are participating in the weekly
Working Group Meetings and are coordinating with their team. Both cities are
coordinating approaching the land movement wholistically. As more information becomes
available from Rolling Hills, it will be conveyed to the City Council and at future Working
Group meetings.
It should be noted that City Staff have stressed to Rolling Hills officials the importance of
addressing the FTL in terms of studying the current hydrological conditions of Klondike
Canyon within the entire watershed and collectively developing remediation measures.
Public Outreach
The public was made aware of tonight’s agenda item through the City’s listserv, as well
as an update at the March 13 Landslide Working Group meeting. Some public comments
have already been received requesting the City Council’s support of KCLAD’s 5-step
project and to support other landslide remediation efforts (Attachment F). Any additional
comments received after publication of this staff report will be provided to the City Council
as late correspondence. The public can submit comments via email to cc@rpvca.gov.
CONCLUSION:
Staff recommends that the City Council receive and file an update on landslide conditions
and activities to mitigate landslide movement and adopt the attached rResolution
continuing the local landslide emergency declaration by 60 days until May 18, 2024. Staff
also recommends that the City Council approve concept plans for installation of two
emergency stabilization hydrauger arrays with associated work, and return at the April 2,
2024 City Council meeting for approval consideration of a construction contract. Finally,
Staff recommends that the City Council direct Staff to explore assisting the Abalone Cove
Landslide Abatement District and the Klondike Canyon Landslide Abatement District with
in-kind services and financial assistance in the form of a loan for landslide mitigation
measures prepared by a licensed geotechnical engineering company and return to the
April 2, 2024 meeting for the City Council’s consideration.
ALTERNATIVES:
In addition to Staff’s discussed option, the following alternative actions are available for
the City Council’s consideration:
1. Take no action and simply receive and file this report.
2. Do not approve the plans, specifications, and construction documents for installation of
two emergency hydraugers to stabilize the Portuguese Bend Landslide.
3. Take such other action as the Council deems appropriate.
18
01203.0023/967254.1
RESOLUTION NO. 2024-__
A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF
RANCHO PALOS VERDES, CALIFORNIA, CONTINUING
THE LOCAL EMERGENCY DECLARATION AS
ESTABLISHED BY RESOLUTION NO. 2023-47 ADOPTED
ON OCTOBER 3, 2023 FOR AN ADDITIONAL 60 DAY
PERIOD
WHEREAS, on October 3, 2023, the City Council of the City of Rancho Palos
Verdes adopted Resolution No. 2023-47, declaring a local state of emergency because
of the alarming increase of land movement in the Greater Portuguese Bend Landslide
Complex, as depicted in Resolution No. 2023-47 Exhibits “A” and “B”. Resolution No.
2023-47, and the exhibits thereto, is incorporated by reference.
WHEREAS, on October 3, 2023, the City Council by a 4/5 vote also adopted
Interim Urgency Ordinance No. 674U, establishing a moratorium on all construction in the
Landslide Complex.
WHEREAS, on November 14, 2023, the City Council by a 4/5 vote adopted
Resolution No. 2023-56, continuing the state of emergency for an additional 60 days.
WHEREAS, on December 19, 2023, the City Council by a 4/5 vote adopted
Resolution No. 2023-61, continuing the state of emergency for an additional 60 days.
WHEREAS, on February 6, 2024, the City Council by a 4/5 vote adopted
Resolution No. 2024-05, continuing the state of emergency for an additional 60 days.
WHEREAS, the state of emergency is deemed to continue to exist until its
termination is proclaimed by the City Council in accordance with law. Government Code
§ 8630 requires the City Council to review of the need for continuing the local emergency
at least once every 60 days until the City Council determines the local emergency within
the geographic boundaries of the Landslide Complex has been abated or mitigated to
insignificance.
WHEREAS, after consideration of all facts reasonably available the City Council
now desires to extend the declaration of a state of local emergency within the Landslide
Complex.
NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF RANCHO PALOS
VERDES, CALIFORNIA, HEREBY FINDS, DETERMINES, AND RESOLVES AS
FOLLOWS:
SECTION 1. Recitals. The City Council hereby determines that the above recitals
are true and correct and incorporates the same as the findings of the City Council.
SECTION 2. Proclamation of Emergency. The City Council finds, pursuant to
RPVMC Chapter 2.24 and Government Code §§ 8630 and 8680.9, there exists, and
continues to exist, an actual condition of peril to the safety of persons and property exiting
within the Greater Portuguese Bend Landslide, comprised of the Portuguese Bend
Landslide, the Abalone Cove Landslide, and the Klondike Canyon Landslide), as depicted
A-1
01203.0023/967254.1 Resolution No. 2024-__
Page 2 of 3
in Exhibits “A” and “B” of Resolution No. 2023-47, and hereby proclaims that a state of
local emergency continues to exist throughout the same.
SECTION 3. Authority Granted. It is further proclaimed and ordered that during
the existence of said local emergency, the powers, authority, functions and duties of the
Disaster Council, Director, and the City’s emergency services organizations shall be
those prescribed by State Law, City ordinances, Resolution No. 2023-47 and any other
applicable resolutions, and approved plans of the City in order to mitigate the effects of
the local emergency.
SECTION 4. Immunity Invoked. To the maximum extent permitted by law, and
pursuant to Government Code § 866, the City Council hereby invokes the immunity
afforded to the City of Rancho Palos Verds in adopting and implementing the declaration
of local emergency within the Landslide Complex
SECTION 5. Duration. The local emergency shall be deemed to continue to exist
until its termination is proclaimed by the City Council in accordance with law.
SECTION 6. Continuing Declaration. Government Code § 8630 requires the
City Council to review of the need for continuing the local emergency at least once every
60 days until the City Council determines the local emergency within Landslide Complex
has been abated or mitigated to insignificance.
SECTION 7. Severability. If any subsection, sentence, clause, phrase, or word of
this Resolution or any application of it to any person, structure, gathering, or circumstance
is held to be invalid or unconstitutional by a decision of a court of competent jurisdiction,
then such decision will not affect the validity of the remaining portions or applications of
this Resolution.
SECTION 8. Effectiveness. This Resolution shall take effect immediately. A copy
of the Proclamation and this Resolution shall be forwarded to the California Emergency
Management Agency. The City Clerk shall certify to the passage and adoption of this
resolution..
PASSED, APPROVED AND ADOPTED on this 19th day of March, 2024.
________________________________
Mayor
ATTEST:
________________________________
City Clerk
STATE OF CALIFORNIA )
COUNTY OF LOS ANGELES ) ss
CITY OF RANCHO PALOS VERDES )
A-2
01203.0023/967254.1 Resolution No. 2024-__
Page 3 of 3
I, Teresa Takaoka, City Clerk of the City of Rancho Palos Verdes, hereby certify that
the above Resolution No. 2024-__ was duly and regularly passed and adopted by the
said City Council at a regular meeting thereof held on March 19, 2024.
___________________________
City Clerk
A-3
SC6163 1
CSA Project No. SC6163
MEMORANDUM
TO: Ara Mihranian, City Manager
CC: Ramzi Awwad, Public Works Director
Elena Gerli, City Attorney
Cory Linder, Director of Recreation and Parks
Katie Lozano, Open Space Manager
FROM: Michael Phipps, CEG 1832, Contract City Geologist
RE: Update on Land Movement Conditions Within the Greater Portuguese Bend
Landslide Complex, Rancho Palos Verdes
DATE: March 15, 2024
_____________________________________________________________________________________________________________
The following information was prepared in response to the City’s request for an update on current land
movement conditions, observations, and our activities over the past month within the Greater
Portuguese Bend Landslide Complex (Landslide Complex). The Landslide Complex encompasses four
historically active landslide areas: the Portuguese Bend Landslide (PBL), the Abalone Cove Landslide
(ACL), the Klondike Canyon Landslide (KCL), and the Beach Club Landslide (BCL). However, it also
includes areas outside of the historical boundaries of those known landslides, predominantly uphill
from the Portuguese Bend and Abalone Cove landslides, within the Ancient Portuguese Bend
Landslide Complex as mapped by various agencies (i.e., U.S. Geological Survey, California Geological
Survey) and other researchers.
Since our presentation to the City Council on February 6, 2023, we have conducted additional field
mapping throughout the Landslide Complex, including areas within the Portuguese Bend, Filiorum
and Abalone Cove Reserves, and made specific visits to Kelvin Canyon, properties along Vanderlip
Road, and the Wayfarer’s Chapel property. We have also participated in the weekly Portuguese Bend
Landslide Complex Working Group meetings, provided input to OSM staff related to non-native brush
removal and habitat restoration projects, reviewed additional survey and rainfall data, and
corresponded with Wayfarer’s Chapel’s geotechnical consultant. We have also responded to numerous
interview requests from regional newspapers, radio stations, and both local and national television
media outlets.
Rainfall and the accompanying infiltration and runoff into the Landslide Complex continue to
adversely affect the landslide area. The 2023-24 season rainfall total was 7.23 inches through January
31, 2024 (Rolling Hills Fire Station 56 ALERT gauge); however, 8.29 inches of rain fell over the following
week, raising the season total to 15.52 inches through February 9, 2024. February’s total rainfall was
11.22 inches, the second wettest February in the 69-year history of this rain gauge (February 1998 being
the wettest). The current season rainfall total is 19.73 inches, about 145% of the season average over the
past 69 years.
B-1
SC6163 2
Our previous update (CSA 1/29/24) noted that average land movement velocities within the Landslide
Complex from October 10, 2023 to January 10, 2024 had accelerated by a factor of 3x to 4x compared to
the previous 12-month (Oct 2022-Oct 2023) monitoring period. This movement continues to manifest
at the ground surface in the form of landslide scarps, fissures, grabens/sinkholes, tensional cracking,
shear zones and thrust features. The ground movement features have continued to enlarge, expand,
widen, or grow depending on the type of feature and location.
Preliminary GPS survey data prepared by McGee Surveying Consulting, covering the period January
10-March 12, 2024 were recently received in raw form (i.e., Excel spreadsheet) and have been
preliminarily reviewed. The data generally indicate that land movement velocities within the
Landslide Complex have accelerated an additional 1.3x to 2.2x compared to the movement velocities in
the October 2023-January 2024 timeframe. The acceleration appears to be greatest in the Abalone Cove
Landslide (2.2x) and areas upslope of it in the Ancient Portuguese Bend Landslide (2.1x). The lowest
acceleration (1.3x) was for points in the Klondike Canyon Landslide. Ground movement survey data
were also received and reviewed for separate monitoring surveys performed on the Wayfarer’s Chapel
property between November 28, 2023 and January 27, 2024. These data indicate an acceleration of
movement velocities on that property from the December 2023 to January 2024 readings and total land
movement of 0.20 to 1.41 feet over the two-month monitoring period. This land movement is
predominantly outside of the known western boundary of the Abalone Cove Landslide and appears to
be reactivation of a portion of the mapped Ancient Portuguese Bend Landslide Complex.
Road conditions on Palos Verdes Drive South (PVDS) continue to deteriorate in response to the
accelerated land movement. The most severe area requiring immediate and significant remedial
measures is the colloquially known “ski jump” at the west margin of the PBL. The ski jump area is
impacted by differential movement between the Abalone Cove Landslide west of the ski jump and the
Western Subslide of the PBL east of the ski jump. The Western Subslide of the PBL is moving about 1.9
times faster than the portion of the ACL that is overriding the Portuguese Point promontory. The road
displacement is occurring at the side scarp of the Western Subslide of the PBL. GPS monitoring point
PB-70 is located approximately 80 feet southeast of this side scarp within the landslide lobe and is a
reasonable proxy for land movement that is affecting the ski jump area of PVDS. PB-70 has moved
nearly 15 feet horizontally and 5.5 feet vertically since 2015, and in the past five months alone it has
moved 6.03 feet horizontally and 0.47 feet vertically (downward).
The landslide is too deep in this area to consider permanent structural solutions such as shear pins,
soldier piles with tiebacks, etc. Because the elevation difference at this landslide boundary is increasing
so rapidly, the need for regrading of the road in this area is apparent. We have discussed alternative
approaches for this grading with the City’s staff and other consultant teams, including the use of
Geofoam blocks or lightweight cellular concrete in lieu of compacted fill material (because it adds
substantially less driving force to the landslide), use of geogrid or other geotextiles in the road subgrade
(to reduce pavement deformation), and lowering of the grade on the west side of the ski jump (cut
grading). These measures are temporary and may reduce the road deformation at the ski jump area;
however, the need for continuing maintenance should be expected given the current rate of land
movement.
B-2
SC6163 3
In summary, our findings continue to be that a large portion of the Ancient Portuguese Bend Landslide
Complex above the historically mapped PBL, ACL and KCL boundaries is involved in significant active
landslide movement that is impacting trails, roads, private property and infrastructure. The current
area of major landslide movement involves approximately 675 acres of land. Please see Figure 1,
attached, for updated mapping of ground features and current limits of major landslide movement
superimposed on a February 12, 2024 orthophoto of the area. Figure 2, attached, presents the same
mapping information on a hillshade topographic map.
-o-
B-3
No
r
t
h
No
r
t
h
0 250 500 1000
(feet)
PORTUGUESE
BEND
LANDSLIDE
FLYING
TRIANGLE
LANDSLIDE
KLONDIKE
CANYON
LANDSLIDE
ABALONE
COVE
LANDSLIDE
EXPLANATION
Limits of the Ancient Portuguese Bend Landslide Complex
Limits of Historically Mapped Landslides
2023/2024 Landslide Mapping
ANCIENT PORTUGUESE BEND
LANDSLIDE COMPLEX
Current Limits of Major Landslide Movement (March 2024)
COTTON,S HIRES AND ASSOCIATES, INC.
CONSULTING ENGINEERS AND GEOLOGISTS
RANCHO PALOS VERDES, CALIFORNIA
SC6163
POS
MP
March 2024
1"=500'
FIGURE NO.
PROJECT NO.
DATE
SCALE
APPROVED BY
GEO/ENG BY
LANDSLIDE MAPPING UPDATE 3/15/24
1
Abalone Cove, Portuguese Bend, Klondike Canyon
February 12, 2024 Orthophoto Base from Nearmap
B-4
No
r
t
h
No
r
t
h
0 250 500 1000
(feet)
PONY TRAIL
PORTUGUESE
BEND
LANDSLIDE
FLYING
TRIANGLE
LANDSLIDE
KLONDIKE
CANYON
LANDSLIDE
ABALONE
COVE
LANDSLIDE
ABALONE
COVE
PORTUGUESE
POINT
INSPIRATION
POINT
SACRED
COVE
BURMA ROAD
NARCISSA DRIVE
SWEETBAY
ROAD
PALOS VERDES DRIVE SOUTH
CREST
ROAD
EXPLANATION
Limits of the Ancient Portuguese Bend Landslide Complex
Limits of Historically Mapped Landslides
2023/2024 Landslide Mapping
ANCIENT PORTUGUESE BEND
LANDSLIDE COMPLEX
SEAVIEW TRACT
Current Limits of Major Landslide Movement (March 2024)
COTTON,S HIRES AND ASSOCIATES, INC.
CONSULTING ENGINEERS AND GEOLOGISTS
RANCHO PALOS VERDES, CALIFORNIA
SC6163
POS
MP
March 2024
1"=500'
FIGURE NO.
PROJECT NO.
DATE
SCALE
APPROVED BY
GEO/ENG BY
LANDSLIDE MAPPING UPDATE 3/15/24
2
Abalone Cove, Portuguese Bend, Klondike Canyon
Hillshade basemap produced from publicly available LiDAR:
"2015 - 2016 LARIAC Lidar DEM: Los Angeles Region, CA"
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PALOS
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PENDING PENDING PENDING PENDING
---- ------------
---- ------------
---- ------------
---- ------------
---- ------------
PENDING
AW
CM
PENDING
PENDING
CITY OF RANCHO PALOS VERDES
PORTUGUESE BEND LANDSLIDE
MITIGATION
LOS ANGELES COUNTY, CA
SO23.1202TITLE PAGE
1
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DRAWING INDEX
DRAWING
NUMBER TITLE AND DESCRIPTION
LATEST
REVISION
NUMBER
LATEST
REVISION
DATE
GENERAL
1 TITLE PAGE PENDING PENDING
2 GENERAL NOTES PENDING PENDING
CIVIL
3 PROPOSED HYDRAUGER LOCATION MAP PENDING PENDING
4 PROPOSED E-1 HYDRAUGER LOCATION PENDING PENDING
5 PROPOSED E-2 LOWER HYDRAUGER LOCATION PENDING PENDING
6 PROPOSED E-2 UPPER HYDRAUGER LOCATION PENDING PENDING
7 PROPOSED E-1 HYDRAUGER PROFILE PENDING PENDING
8 PROPOSED E-2 LOWER HYDRAUGER PROFILE PENDING PENDING
9 PROPOSED E-2 UPPER HYDRAUGER PROFILE PENDING PENDING
10 HYDRAUGER DETAILS - DIRECTIONAL PENDING PENDING
11 HYDRAUGER DETAILS - HORIZONTAL PENDING PENDING
REV. NO.
DATE OF ISSUE:
DRAWN BY:
DESIGNED BY:
CHECKED BY:
APPROVED BY:
DATE DESCRIPTION APPROVED BY
This drawing has not been published but rather has been prepared by Geo-Logic Associates, Inc. for use by the client named in the title block, solely in respect of the construction
operation, and maintenance of the facility named in the title block. Geo-Logic Associates, Inc. shall not be liable for the use of this drawing on any other facility or for any other purpose.
PROJECT NO.
DRAWING NO.
3150 Bristol Street Suite 210, Costa Mesa, California 92626
geo-logic.com│714.465.8240 30940 HAWTHORNE BLVD.
RANCHO PALOS VERDES,CA 90275
THE CITY OF
RANCHO PALOS VERDES
PORTUGUESE BEND LANDSLIDE MITIGATION
NOT TO SCALE
UTILITY COMPANY CONTACT INFORMATION PHONE
CITY OF RANCHO PALOS VERDES (310) 544-5252
SOUTHERN CALIFORNIA EDISON COMPANY (310) 783-1156
SOUTHERN CALIFORNIA GAS COMPANY (310) 687-2020
VERIZON (310) 793-4159
CALIFORNIA WATER SERVICE COMPANY (310) 541-2438
COX COMMUNICATIONS (310) 551-5020 X30
COUNTY OF LOS ANGELES, DEPARTMENT OF PUBLIC WORKS
(STORM DRAIN)(626) 458-3109
COUNTY OF LOS ANGELES, DEPARTMENT OF PUBLIC WORKS
(SEWER)(626) 458-4357
SANITATION DISTRICT OF LOS ANGELES COUNTY (562) 699-7411 X1205
USA (800)227-2600
NOTICE: ACTUAL EXISTING SITE CONDITIONS MAY DIFFER FROM THOSE SHOWN. THE CONTRACTOR SHALL VERIFY SITE CONDITIONS PRIOR TO BIDDING. LOCATION OF EXISTING
AND ABANDONED UTILITIES IS UNKNOWN OR FROM RECORD DATA ONLY. THE CONTRACTOR SHALL VERIFY TO HIS SATISFACTION LOCATIONS OF ALL UTILITIES PRIOR TO BIDDING
AND CONSTRUCTION. CONTRACTOR SHALL MAINTAIN AS-BUILT RECORDS OF EXISTING UTILITIES AND INFORM THE ENGINEER IN CASE OF DISCREPANCIES.
THE CONSTRUCTION CONTRACTOR AGREES THAT IN ACCORDANCE WITH GENERALLY ACCEPTED CONSTRUCTION PRACTICES, THE CONSTRUCTION CONTRACTOR WILL BE
REQUIRED TO ASSUME SOLE AND COMPLETE RESPONSIBILITY FOR JOB SITE CONDITIONS DURING THE COURSE OF CONSTRUCTION OF THE PROJECT, INCLUDING THE SAFETY OF
ALL PERSONS AND PROPERTY; THAT THIS REQUIREMENT SHALL BE MADE TO APPLY CONTINUOUSLY AND NOT BE LIMITED TO NORMAL WORKING HOURS, AND THE CONSTRUCTION
CONTRACTOR FURTHER AGREES TO DEFEND, INDEMNIFY, AND HOLD THE DESIGN PROFESSIONAL HARMLESS FROM ANY LIABILITY, REAL OR ALLEGED, IN CONNECTION WITH THE
PERFORMANCE OF WORK ON THIS PROJECT, EXCEPTING LIABILITY ARISING FROM THE SOLE NEGLIGENCE OF THE DESIGN PROFESSIONAL.
THE ENGINEER PREPARING THESE PLANS WILL NOT BE RESPONSIBLE FOR, OR LIABLE FOR, UNAUTHORIZED USE OF THESE PLANS. ALL CHANGES TO THE PLANS MUST BE IN
WRITING AND MUST BE APPROVED BY THE PREPARER OF THESE PLANS.
THE CONTRACTOR SHALL VERIFY THE PRESENCE, LOCATION, AND MATERIAL OF ALL AFFECTED OR CONFLICTING UTILITIES AS NECESSARY FOR CONSTRUCTION. UTILITY
VERIFICATION AND NOTIFICATION SHALL BE MADE IN A TIMELY MANNER, SO AS TO ALLOW FOR ALTERNATIVE PLANNING WITHOUT AFFECTING THE CONSTRUCTION SCHEDULE.
GENERAL INFORMATION
·Grading Permit Application No. GR_____________________________
·Earthwork Volumes Cut (cy), Fill (cy)
·Over Excavation/ Alluvial Removal & Compaction _______ (cy)
·Export (cy), Export Location: __________
·Total Disturbed Area (Acres)
·Total Proposed Landscape Area Square Feet
PROPERTY INFORMATION
·Property Address ______________________________________ (If exist)
·Record of Survey Book ___ Pages ____
·Property Owner ___________
·Assessors ID Number(s) __________________________________
BENCHMARK:
HORIZONTAL COORDINATE SYSTEM: NAD 83, CALIFORNIA STATE PLANE, ZONE 5, NAVD 88
INTERIM WORK PRODUCT - NOT FOR CONSTRUCTION
NOT TO SCALE
0'600'600'300'
CITY OF RANCHO PALOS VERDES
DRA
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PROPOSED HYDRAUGER
ARRAY E-1 INITIATION POINT
PROPOSED HYDRAUGER ARRAY
E-2 UPPER INITIATION POINT
PROPOSED HYDRAUGER ARRAY
E-2 LOWER INITIATION POINT
C-1
PENDING PENDING PENDING PENDING
---- ------------
---- ------------
---- ------------
---- ------------
---- ------------
PENDING
AW
CM
PENDING
PENDING
CITY OF RANCHO PALOS VERDES
PORTUGUESE BEND LANDSLIDE
MITIGATION
LOS ANGELES COUNTY, CA
SO23.1202GENERAL NOTES
2
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REV. NO.
DATE OF ISSUE:
DRAWN BY:
DESIGNED BY:
CHECKED BY:
APPROVED BY:
DATE DESCRIPTION APPROVED BY
This drawing has not been published but rather has been prepared by Geo-Logic Associates, Inc. for use by the client named in the title block, solely in respect of the construction
operation, and maintenance of the facility named in the title block. Geo-Logic Associates, Inc. shall not be liable for the use of this drawing on any other facility or for any other purpose.
PROJECT NO.
DRAWING NO.
3150 Bristol Street Suite 210, Costa Mesa, California 92626
geo-logic.com│714.465.8240 30940 HAWTHORNE BLVD.
RANCHO PALOS VERDES,CA 90275
THE CITY OF
RANCHO PALOS VERDES
GENERAL NOTES
1. ALL WORKS SHALL CONFORM TO THE CITY OF RANCHO PALOS VERDES STANDARD
PLANS FOR PUBLIC WORKS CONSTRUCTION, STANDARD SPECIFICATIONS FOR PUBLIC
WORKS CONSTRUCTION (GREENBOOK), THE STATE OF CALIFORNIA DEPARTMENT OF
TRANSPORTATION STANDARD PLANS & SPECIFICATIONS, & PROJECT SPECIAL
PROVISIONS, EACH OF THE MOST RECENT DATE.
2. THE CONTRACTOR SHALL NOTIFY THE CITY OF RANCHO PALOS VERDES AT LEAST TWO
WORKING DAYS (48 HOURS) PRIOR TO STARTING CONSTRUCTION, AT (310) 544-5252.
3. ALL UNDERGROUND FACILITIES SHALL BE INSTALLED PRIOR TO SURFACING OF STREETS.
THE INSTALLATION OF ALL UNDERGROUND FACILITIES CROSSING EXISTING ARTERIAL
HIGHWAYS REQUIRES BORING OR JACKING, UNLESS OTHERWISE APPROVED BY THE
CITY OF RANCHO PALOS VERDES.
4. TRAFFIC CONTROL AND SAFETY DEVICES SHALL BE INSTALLED PER THE CURRENT
EDITION OF THE CALIFORNIA MUTCD, AND TO SATISFACTION OF THE CITY OF RANCHO
PALOS VERDES.
5. EXISTING PAVEMENT DISTURBED BY THE CONSTRUCTION OF UNDERGROUND
INSTALLATIONS SHALL BE REPLACED IN KIND & RESTRIPED. A PERMIT ISSUED BY THE
CITY OF RANCHO PALOS VERDES IS REQUIRED.
6. IT SHALL BE THE CONTRACTOR'S RESPONSIBILITY TO ARRANGE FOR AND COORDINATE
THE RELOCATION OF ANY EXISTING UTILITIES DEEMED NECESSARY BY THE PROPOSED
IMPROVEMENTS.
7. THE CONTRACTOR SHALL BE RESPONSIBLE FOR PROTECTION OF EXISTING UTILITIES.
ANY DAMAGE TO SUCH FACILITIES CAUSED BY HIS WORK SHALL BE REPAIRED BY THE
CONTRACTOR AT HIS EXPENSE.
8. THE CONTRACTOR SHALL MAINTAIN ADJACENT STREETS IN A NEAT, CLEAN, DUST FREE
AND SANITARY CONDITION TO THE SATISFACTION OF THE CITY'S INSPECTION. THE
ADJACENT STREETS SHALL BE KEPT CLEAN OF DEBRIS, WITH DUST AND OTHER
NUISANCES BEING CONTROLLED AT ALL TIMES. THE CONTRACTOR SHALL BE
RESPONSIBLE FOR ANY CLEAN UP ON ADJACENT STREETS AFFECTED BY HIS
CONSTRUCTION. STOCKPILE OF MATERIALS WITHIN THE PUBLIC RIGHT-OF-WAY IS NOT
ALLOWED WITHOUT PRIOR WRITTEN APPROVAL OF THE CITY INSPECTOR.
9. ALL CONCRETE WORK SHALL BE 560-C-3250.
10. CONTRACTOR SHALL OBTAIN ALL REQUIRED O.S.H.A. PERMITS PRIOR TO CONSTRUCTION
OF UNDERGROUND FACILITIES.
11. WHEELCHAIR RAMPS, DRIVEWAY APRONS, CURBS, OR GUTTERS DISTURBED BY
CONSTRUCTION SHALL BE REPLACED AT THE CONTRACTOR'S EXPENSE. A PERMIT
ISSUED BY THE CITY OF RANCHO PALOS VERDES IS REQUIRED.
12. ALL SAWCUTS SHALL BE DONE BY THE WET-CUT METHOD, UNLESS OTHERWISE
APPROVED BY THE CITY ENGINEER, AND ALL SLURRY SHALL BE VACUUM REMOVED.
13. NEW CONCRETE SHALL MATCH EXISTING CONCRETE IN COLOR, FINISH, AND TEXTURE,
TO THE APPROVAL OF THE ENGINEER.
14. CONSTRUCTION SHALL BE ADJUSTED AS NECESSARY TO MATCH EXISTING CONDITIONS,
USES, AND PROVIDE POSITIVE SURFACE DRAINAGE. EXACT LIMITS AND CONFIGURATION
OF WORK TO BE ADJUSTED AS DIRECTED BY THE ENGINEER IN THE FIELD.
15. TOPOGRAPHIC INFORMATION SHOWN HEREIN HAS BEEN PROVIDED BY THE CITY OF
RANCHO PALOS VERDES, DATED 2017, AND UPDATED BY CALVADA SURVEYING, INC. IN
JANUARY 2024. THE CONTRACTOR SHALL BE RESPONSIBLE FOR VERIFYING THE
CORRECTNESS OF TOPOGRAPHIC INFORMATION FOR HIS OWN PURPOSES.
16. THE CONTRACTOR SHALL REMOVE ALL CONSTRUCTION MARKINGS FROM THE PROJECT
BY POWER WASHING, INCLUDING THOSE PLACED FOR UTILITY LOCATING AND
CONSTRUCTION SURVEYING. WASTE FROM POWER WASHING MUST BE DISCHARGED IN
COMPLIANCE WITH NPDES.
17. THE CONTRACTOR SHALL BE RESPONSIBLE FOR PROVIDING ACCESS ROADS, WORKING
PLATFORMS, STAGING AREAS, AND OTHER TEMPORARY SITE FEATURES AS NEEDED TO
PERFORM THE CONSTRUCTION.
18. THE CONTRACTOR SHALL BE RESPONSIBLE FOR PREVENTING DISCHARGE OF SEDIMENT,
CONTAMINATED WATER, DRILLING MUD AND OTHER CONTAMINANTS TO DRAINAGE
FEATURES AND/OR THE OCEAN.
19. THE CONTRACTOR SHALL ACCOMMODATE ALL REQUIREMENTS SPECIFIED BY PERMITS,
ENVIRONMENTAL MITIGATION PLANS, AND OTHER SIMILAR DOCUMENTS. ALL
REASONABLE EFFORTS SHALL BE MADE TO MINIMIZE IMPACTS TO SITE FLORA AND
FAUNA.
20. THE SITE IS AN ACTIVE LANDSLIDE AND IS MOVING. ALL LOCATIONS SHOWN IN THE
PLANS ARE APPROXIMATE. THE CONTRACTOR IS RESPONSIBLE FOR IDENTIFYING AND
CORRECTING DISCREPANCIES BETWEEN PLANS AND FIELD CONDITIONS.
21. THE CONTRACTOR IS RESPONSIBLE FOR IMPLEMENTING PREVAILING WAGE,
APPRENTICESHIP, AND OTHER APPLICABLE REQUIREMENTS, AS WELL AS FOR
REPORTING TO THE STATE OF CALIFORNIA DEPARTMENT OF INDUSTRIAL RELATIONS.
BEST MANAGEMENT PRACTICE NOTES:
1. EVERY EFFORT SHOULD BE MADE TO ELIMINATE THE DISCHARGE OF NON-STORMWATER FROM THE PROJECT SITE AT ALL TIMES.
2. ERODED SEDIMENTS AND OTHER POLLUTANTS MUST BE RETAINED ON-SITE AND MAY NOT BE TRANSPORTED FROM THE SITE VIA
SHEET FLOW, SWALES, AREA DRAINS, NATURAL DRAINAGE COURSES OR WIND.
3. STOCKPILES OF EARTH AND OTHER CONSTRUCTION RELATED MATERIALS MUST BE PROTECTED FROM BEING TRANSPORTED FROM THE
SITE BY THE FORCES OF WIND OR WATER.
4. FUELS, OILS, SOLVENTS, AND OTHER TOXIC MATERIALS MUST BE STORED IN ACCORDANCE WITH THEIR LISTING AND ARE NOT TO
CONTAMINATE THE SOIL AND SURFACE WATERS. ALL APPROVED STORAGE CONTAINERS ARE TO BE PROTECTED FROM THE WEATHER.
SPILLS MUST BE CLEANED UP IMMEDIATELY AND DISPOSED OF IN A PROPER MANNER. SPILLS MAY NOT BE WASHED INTO THE
DRAINAGE SYSTEM.
5. EXCESS OR WASTE CONCRETE MAY NOT BE WASHED INTO THE PUBLIC WAY OR ANY OTHER DRAINAGE SYSTEM. PROVISIONS SHALL
BE MADE TO RETAIN CONCRETE WASTES ON-SITE UNTIL THEY CAN BE DISPOSED OF AS SOLID WASTE.
6. TRASH AND CONSTRUCTION RELATED SOLID WASTES MUST BE DEPOSITED INTO A COVERED RECEPTACLE TO PREVENT
CONTAMINATION OF RAINWATER AND DISPERSAL BY WIND.
7. SEDIMENTS AND OTHER MATERIALS MAY NOT BE TRACKED FROM THE SITE BY VEHICLE TRAFFIC. THE CONSTRUCTION ENTRANCE
ROADWAYS MUST BE STABILIZED SO AS TO INHIBIT SEDIMENTS FROM BEING DEPOSITED INTO THE PUBLIC WAY. ACCIDENTAL
DEPOSITIONS MUST BE SWEPT UP IMMEDIATELY AND MAY NOT BE WASHED DOWN BY RAIN OR OTHER MEANS.
8. ANY SLOPES WITH DISTURBED SOILS OR DENUDED OF VEGETATION MUST BE STABILIZED SO AS TO INHIBIT EROSION BY WIND AND WATER.
9. “I CERTIFY THAT THIS DOCUMENT AND ALL ATTACHMENTS WERE PREPARED UNDER MY DIRECTION OR SUPERVISION IN ACCORDANCE
WITH A SYSTEM DESIGNED TO ENSURE THAT QUALIFIED PERSONNEL PROPERLY GATHER AND EVALUATE THE INFORMATION SUBMITTED.
BASED ON MY INQUIRY OF THE PERSON OR PERSONS WHO MANAGE THE SYSTEM OR THOSE PERSONS DIRECTLY RESPONSIBLE FOR
GATHERING THE INFORMATION, TO THE BEST OF MY KNOWLEDGE AND BELIEF, THE INFORMATION SUBMITTED IS TRUE, ACCURATE, AND
COMPLETE. I AM AWARE THAT SUBMITTING FALSE AND/ OR INACCURATE INFORMATION, FAILING TO UPDATE THE ESCP TO REFLECT
CURRENT CONDITIONS, OR FAILING TO PROPERLY AND/ OR ADEQUATELY IMPLEMENT THE ESCP MAY RESULT IN REVOCATION OF GRADING
AND/ OR OTHER PERMITS OR OTHER SANCTIONS PROVIDED BY LAW.”
PRINT NAME _____________________________________________
(OWNER OR AUTHORIZED AGENT OF THE OWNER)
SIGNATURE ______________________________________________ DATE __________________
(OWNER OR AUTHORIZED AGENT OF THE OWNER)
THE FOLLOWING BMPS AS OUTLINED IN, BUT NOT LIMITED TO, THE LATEST EDITION OF THE CASQA CONSTRUCTION BMP ONLINE
HANDBOOK OR CALTRANS STORMWATER QUALITY HANDBOOKS (CONSTRUCTION SITE BMP MANUAL), MAY APPLY DURING THE
CONSTRUCTION OF THIS PROJECT (ADDITIONAL MEASURES MAY BE REQUIRED IF DEEMED APPROPRIATE BY THE PROJECT ENGINEER OR
THE BUILDING OFFICIAL)
PARTIAL LIST OF CONTRACTOR SUBMITTALS (TO BE UPDATED THROUGH THE DURATION OF THE PROJECT)
1. CONSTRUCTION PHASING PLAN
2. CONSTRUCTION SCHEDULING AND WORKING HOURS
3. TRAFFIC CONTROL PLAN
4. TRAIL USE MANAGEMENT PLAN
HYDRAUGERS
BID ITEM UNIT QUANTITY
DIRECTIONAL DRAINS L.F.6,000
PRE-CONSTRUCTION
CONFIRMATORY SUBSURFACE
EXPLORATION PROGRAM
EA.1
PORE WATER PRESSURE
INSTRUMENTATION MONITORING
PROGRAM
EA. 1
PRODUCED WATER ANALYTICAL
LABORATORY TESTING AND
TREATMENT PROGRAM
EA.1
INTERIM WORK PRODUCT - NOT FOR CONSTRUCTION
C-2
150
16
0
1
6
0
160170
17
0
17
0
180
1
8
0
18
0
180
180
1
9
0
21
0
190
200
21
0
220
230
240
250
260
270
2
8
0
29
0
2
6
0
2
7
0
2
8
0
2
9
0
3
0
0
3
1
0
32
0
3
3
0
3
4
0
350
3
6
0
370
3
8
0
38
0
3
6
0
3
7
0
380
3
8
0
2
4
0
24
0
2
5
025
0
260
260
270
270
28
0
280
290
290
300
300
310
310
320
330
340
1
0
1
0
2
0
3
0
4
05060
70
4
0
5
0
60
70
40
5
0
60
7
0
8
0
9
0
10
0
30
40
50
6
0
70
6
0
7
0
80
9
0
10
0
110
120
130
140
1
5
0
160
170180
190
200
1
8
0
1
9
0
2
0
0
2
1
0
2
2
0
2
3
0
2
4
0
2
5
0
2
6
0
27
0
2
8
0
280
2
8
0
2
9
0
290
3
0
0
300
31
0
31
0
3
2
0
320
3
3
0
330
3
4
0
340
3
5
0
350
3
6
0
360
3
7
0
370
25
0
2
5
0
26
0
2
6
0
27
0
2
7
0
28
0
2
8
0
2
9
0
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0
0
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1
0
3
2
0
3
3
0
3
4
0
3
5
0
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6
0
3
7
0
3
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0
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9
0
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0
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1
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420
420
4
3
0
430
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44
0
440
440
450
45
0
4
5
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4
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4
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0
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0
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0
4
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0
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1
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5
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0
5
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0
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0
5
6
0
5
7
0
5
8
0
590
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5
9
0
6
0
0
610
620
63
0
64
0
690
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70
0
70
0
700
710
720
73
0
740
750
760
61
0
62
063
064
0
65
0660670
680690
47
0
480
490
50
0
510
520
530540550
560570580590
60
0
600
610
610
620
620
630
630
640
640
65
0
650
66
0
660
6
0
0
61
0
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63
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650660670680690
7
0
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70
0
41
0
4
2
0
4
3
0
4
4
0
4
5
0
4
6
0
4
7
0
48
0
490
50
0
51
0
5
2
0
5
3
0
5
4
0
5
5
0
48
0
480
49
0
490
50
0
500
51
0
510
520
520
53
0
530
54
0
540
55
0
550
560
5
7
0
57
0
570
5
8
0
570
570
580
5
7
0
170
170
180180180
180
190
190
2
0
0
20
0
200
210
220
230
240
2
5
0
250
250
25
0
250
260270
280
2
9
0
2
9
0
290
3
0
0
3
0
0
300
3
1
0
3
1
0
31
0
3
2
0
330
3
4
0
350
360
37
0
380
39
0
40
0
41
0
4
2
0
430
440
450
450
460
470
48
0
49
0
5
0
0
510520530
54
0
550
5
6
0
5
7
0
580
590600610
62
0
63
0
64
0
6
5
0
6
6
0
67
0
680
690
70
0
607080
90
100
110
120
13
0
14
0
150
1
6
0
160
160
170
170
170
180
180
180
180
180
190190
190
200
210
220230240250
260
260
260
270
270
270
28
0
290
29
0
2
9
0
290
290
3
0
0
300
300
310
310
3
1
0
3
2
0
330
340
35
0
3
6
0
3
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0
3
8
0
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9
0
4
0
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1
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430440450460
470
4
8
0
4
9
0
5
0
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510520530540550
56
0
5
7
0
5
8
0
590
6
0
0
6
1
0
6
2
0
630640650660
670
680
690
70
0
7
1
0
10
20
30
40
5
0
6
0
70
80
8
0
8090100
11
0
120
130
140
150
16
0
160
160
170
180
190
200
210
22
0
230
240
250
26
0
270
270
270
280
29029
0
290
300
30
0
300
310
32
0
32
0
32
0
33
0
3
3
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33
0
340
3
4
0
34
0
350
360370
380
390
400
41
0
42
0
4
3
0
440
45
0
460
470
4
8
0
490
500
510
520
530
540
5
5
0
550
5
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0
560570580590600610
620
630
640650
10
20
30
4050
60
70
80
90
100
110110
110
12
0120
120
13
0
140
1
5
0
160
17
0
180
16
01
6
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17
0
1
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0
18
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1
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260
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280
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2
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330
340
350
350
360
360
370
370
350
3
6
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360
360
3
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36
0
37
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380
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42043044045
0460470480
480
4
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0
490
500510
520530540550
560
570
580
590
6
0
0
6
1
0
620630
10
2030405060
70
70
70
80
90
100110
12
0
13
0
140150
160
170
170
170
18
0
180
180
1
9
0
190
190
2
0
0
2
1
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220
230
240
25
0
260
270
2
8
0
290
290
29
0
3
0
0
30
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310320330
340
350
360
370
370
37
0
38
0
38
0
390
400
41
0
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0
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46
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1020304050
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90100110
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170
1
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0
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220
230
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2
4
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250260270
280
290300
310
320
330
340
350
360
370
380
390
390
390
39
0
10203040506070809090
70
70
80
8090100
110120
130
140
150
160
170
170
170
180
190
200
21
0
220
230
240
2
4
0
240
250
260
270
280
290
300
300
300
310320330340350360
370
370
38
0
38
0
1
0
2
0
3
0
4
0
5
0
6
0
7
0
8
0
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0
1
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1101
2
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1
3
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1
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3040506070809010
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21
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210
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2
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2
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25
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2
6
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27
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290
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35
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20
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210
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22
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230240250
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270280
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13
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250
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203040506070809010011012013014015016
017
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19
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200
21
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210
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23
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230
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24
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270280290
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3040506070
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PALOS VERDES DRIVE SOUTH
E-1
E-2
LOWER
E-2
UPPER
REV. NO.
DATE OF ISSUE:
DRAWN BY:
DESIGNED BY:
CHECKED BY:
APPROVED BY:
DATE DESCRIPTION APPROVED BY
This drawing has not been published but rather has been prepared by Geo-Logic Associates, Inc. for use by the client named in the title block, solely in respect of the construction
operation, and maintenance of the facility named in the title block. Geo-Logic Associates, Inc. shall not be liable for the use of this drawing on any other facility or for any other purpose.
PROJECT NO.
DRAWING NO.
3150 Bristol Street Suite 210, Costa Mesa, California 92626
geo-logic.com│714.465.8240 30940 HAWTHORNE BLVD.
RANCHO PALOS VERDES,CA 90275
THE CITY OF
RANCHO PALOS VERDES
N:
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LEGEND
EXISTING TOPOGRAPHY, 10 FT ELEVATION CONTOUR200
300'150'0'300'600'
APPROXIMATE LIMITS OF SUBSLIDES OF PORTUGUESE BEND
LANDSLIDE (BASED LEIGHTON, 2000)
APPROXIMATE LIMITS OF PORTUGUESE BEND LANDSLIDE
(BASED ON LEIGHTON, 2000)
8."BRIC PROJECT LIMITS" DENOTES PROJECT AREA IDENTIFIED IN
"BUILDING RESILIENT INFRASTRUCTURE AND COMMUNITIES" FUNDING
APPLICATION PACKAGE.
7.CONTRACTOR IS RESPONSIBLE TO CAPTURE WATER PRODUCED
FROM DRAINS DURING CONSTRUCTION; PERFORM ANALYTICAL
LABORATORY TESTING OF REPRESENTATIVE WATER SAMPLES;
FURNISH AND INSTALL STORAGE, TREATMENT, AND/OR PUMPING
EQUIPMENT AS NEEDED FOR COMPLIANCE WITH PERMIT
REQUIREMENTS.
6.CONTRACTOR TO INSTALL PLUMBING CONNECTIONS TO EXISTING
DRAINAGE LINES AND/OR PROPOSED SWALES.
5.CONTRACTOR TO FURNISH AND INSTALL PUMPS AND ELECTRICAL
CONNECTIONS FOR PUMP-ASSISTED SWALES.
4.CONTRACTOR IS RESPONSIBLE TO FIELD VERIFY ELEVATIONS
SHOWN.
3.EXISTING TOPOGRAPHY PROVIDED BY CITY OF RANCHOS PALOS
VERDES DATED 2017 AND UPDATED BY CALVADA SURVEYING, INC. IN
JANUARY 2024.
2.CONTRACTOR IS RESPONSIBLE TO INSTALL GROUTED CONDUCTOR
AND/OR SURFACE CASING WITH ADEQUATE CAPACITY TO PREVENT
BLOWOUT AND/OR OTHER POTENTIAL ADVERSE EVENTS RELATED TO
HYDRAUGER INSTALLATION, OPERATION, AND/OR MAINTENANCE.
1.CONTRACTOR IS RESPONSIBLE TO PERFORM PRE-CONSTRUCTION
CONFIRMATION SUBSURFACE EXPLORATION TO VERIFY
GROUNDWATER, SOIL, AND BEDROCK CONDITIONS.
NOTES
CITY OF RANCHO PALOS VERDES
PORTUGUESE BEND LANDSLIDE
MITIGATION
LOS ANGELES COUNTY, CA
SO23.1202PROPOSED HYDRAUGER LOCATION MAP
3
PROPOSED HYDRAUGER ARRAY LOCATION. BOX REPRESENTS
WORK LOCATION, BLACK LINE REPRESENTS DIRECTION AND
LENGTH OF HYDRAUGERS IN PLAN VIEW.E-1
APPROXIMATE LOCATION OF SHORELINE
PRESERVE PROPERTY BOUNDARY
PENDING PENDING PENDING PENDING
---- ------------
---- ------------
---- ------------
---- ------------
---- ------------
PENDING
AW
CM
PENDING
PENDING
INTERIM WORK PRODUCT - NOT FOR CONSTRUCTION
BRIC PROJECT LIMITS(8)
PROPOSED FLEXIBLE DISCHARGE LINE ALONG GROUND SURFACE
APPROXIMATE LOCATION OF TRAIL BASED CITY OF RANCHO
PALOS VERDES MAPS
EXISTING IMPROVEMENTS BASED ON 2024 CALVADA
SURVEYING, INC. SURVEY UPDATE.
C-3
150
16
0
17
0
180
1
9
0
21
0
2
4
0
2
5
0
260
70
4
0
5
0
60
70
40
5
0
60
7
0
8
0
9
0
10
0
30
40
50
6
0
70
6
0
7
0
80
9
0
10
0
110
120
130
140
1
5
0
160
170
180
190
200
1
8
0
1
9
0
2
0
0
2
1
0
2
2
0
2
3
0
2
4
0
2
5
0
2
6
0
27
0
2
8
0
280
2
8
0
2
9
0
290
3
0
0
300
31
0
31
0
3
2
0
320
3
3
0
330
3
4
0
340
3
5
0
350
3
6
0
360
3
7
0
370
25
0
2
5
0
26
0
27
0
28
0
41
0
4
2
0
4
3
0
4
4
0
4
5
0
4
6
0
4
7
0
48
0
490
50
0
51
0
5
2
0
5
3
0
170
170
180
180
180
190
20
0
60
70
80
90
100
110
120
13
0
14
0
150
1
6
0
160
160
170
170
170
180
180
180
180
180
190190
190
10
20
30
40
5
0
6
0
70
80
8
0
80
90100
11
0
120
130
140
150
16
0
160
160
170
180
190
200
210
22
0
230
10
20
30
4050
60
70
80
90
100
110
110
110
12
0
120
120
13
0
140
1
5
0
160
17
0
180
16
0
1
6
0
17
0
1
7
0
18
0
1
8
0
180
1
8
0
19
0
200
210
220
230
240
250
260
270
100
2
0
0
2
5
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BARN
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PALOS VERDES DRIVE SOUTH
E-1
I-1
I-2
I-3
I-4
I-5
I-6
I-7
REV. NO.
DATE OF ISSUE:
DRAWN BY:
DESIGNED BY:
CHECKED BY:
APPROVED BY:
DATE DESCRIPTION APPROVED BY
This drawing has not been published but rather has been prepared by Geo-Logic Associates, Inc. for use by the client named in the title block, solely in respect of the construction
operation, and maintenance of the facility named in the title block. Geo-Logic Associates, Inc. shall not be liable for the use of this drawing on any other facility or for any other purpose.
PROJECT NO.
DRAWING NO.
3150 Bristol Street Suite 210, Costa Mesa, California 92626
geo-logic.com│714.465.8240 30940 HAWTHORNE BLVD.
RANCHO PALOS VERDES,CA 90275
THE CITY OF
RANCHO PALOS VERDES
N:
\
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100'50'0'100'200'
CITY OF RANCHO PALOS VERDES
PORTUGUESE BEND LANDSLIDE
MITIGATION
LOS ANGELES COUNTY, CA
SO23.1202PROPOSED E-1 HYDRAUGER LOCATION
4
INTERIM WORK PRODUCT - NOT FOR CONSTRUCTION
PENDING PENDING PENDING PENDING
---- ------------
---- ------------
---- ------------
---- ------------
---- ------------
PENDING
AW
CM
PENDING
PENDING
LENGTH IN PLAN = 1,200 FEET (TYPICAL)
PROPOSED FLEXIBLE
DISCHARGE LINE TO EXISTING
STORM DRAIN RISER
(APPROXIMATE LENGTH IN
PLAN = 310 FT)
LEGEND
EXISTING TOPOGRAPHY, 10 FT ELEVATION CONTOUR200
APPROXIMATE LIMITS OF SUBSLIDES OF PORTUGUESE BEND
LANDSLIDE (BASED LEIGHTON, 2000)
APPROXIMATE LIMITS OF PORTUGUESE BEND LANDSLIDE
(BASED ON LEIGHTON, 2000)
8."BRIC PROJECT LIMITS" DENOTES PROJECT AREA IDENTIFIED IN
"BUILDING RESILIENT INFRASTRUCTURE AND COMMUNITIES" FUNDING
APPLICATION PACKAGE.
7.CONTRACTOR IS RESPONSIBLE TO CAPTURE WATER PRODUCED
FROM DRAINS DURING CONSTRUCTION; PERFORM ANALYTICAL
LABORATORY TESTING OF REPRESENTATIVE WATER SAMPLES;
FURNISH AND INSTALL STORAGE, TREATMENT, AND/OR PUMPING
EQUIPMENT AS NEEDED FOR COMPLIANCE WITH PERMIT
REQUIREMENTS.
6.CONTRACTOR TO INSTALL PLUMBING CONNECTIONS TO EXISTING
DRAINAGE LINES AND/OR PROPOSED SWALES.
5.CONTRACTOR TO FURNISH AND INSTALL PUMPS AND ELECTRICAL
CONNECTIONS FOR PUMP-ASSISTED SWALES.
4.CONTRACTOR IS RESPONSIBLE TO FIELD VERIFY ELEVATIONS
SHOWN.
3.EXISTING TOPOGRAPHY PROVIDED BY CITY OF RANCHOS PALOS
VERDES DATED 2017 AND UPDATED BY CALVADA SURVEYING, INC. IN
JANUARY 2024.
2.CONTRACTOR IS RESPONSIBLE TO INSTALL GROUTED CONDUCTOR
AND/OR SURFACE CASING WITH ADEQUATE CAPACITY TO PREVENT
BLOWOUT AND/OR OTHER POTENTIAL ADVERSE EVENTS RELATED TO
HYDRAUGER INSTALLATION, OPERATION, AND/OR MAINTENANCE.
1.CONTRACTOR IS RESPONSIBLE TO PERFORM PRE-CONSTRUCTION
CONFIRMATION SUBSURFACE EXPLORATION TO VERIFY
GROUNDWATER, SOIL, AND BEDROCK CONDITIONS.
NOTES
PROPOSED HYDRAUGER ARRAY LOCATION. YELLOW SHADED
AREA REPRESENTS ACCESS, LAYDOWN AREA, AND HYDRAUGER
INITIATION AREA, BLACK LINE REPRESENTS DIRECTION AND
LENGTH OF HYDRAUGERS IN PLAN VIEW.E-1
APPROXIMATE LOCATION OF SHORELINE
PRESERVE PROPERTY BOUNDARY
BRIC PROJECT LIMITS(8)
PROPOSED FLEXIBLE DISCHARGE LINE TO KLONDIKE CANYON
APPROXIMATE LOCATION OF TRAIL BASED CITY OF RANCHO
PALOS VERDES MAPS
EXISTING IMPROVEMENTS BASED ON 2024 CALVADA
SURVEYING, INC. SURVEY UPDATE.
PROPOSED INSTRUMENTATION LOCATION
(DUAL VERTICAL BOREHOLE)I-7
TIE INTO EXISTING
STORM DRAIN RISER
C-4
370
3
8
0
3
6
0
3
7
0
380
3
8
0
420
420
430
430
440
440
45
0
4
5
0
450
4
5
0
4
6
0
46
0
4
6
0
470
48
0
4
9
0
5
0
0
5
1
0
520
5
3
0
5
4
0
55
0
5
6
0
5
7
0
5
8
0
590
590
5
9
0
6
0
0
610
620
63
0
64
0
560
5
7
0
57
0
570
5
8
0
570
570
580
5
7
0
2
9
0
3
0
0
3
1
0
3
2
0
330
3
4
0
350
360
37
0
380
39
0
40
0
41
0
4
2
0
430
440
450
450
460
470
48
0
49
0
5
0
0
510
520
530
54
0
550
5
6
0
5
7
0
580
590
600
610
62
0
63
0
6
4
0
6
5
0
6
6
0
67
0
680
690
70
0
2
9
0
290
3
0
0
300
310
3
2
0
330
340
35
0
3
6
0
3
7
0
3
8
0
3
9
0
4
0
0
4
1
0
420
430
440
450
460
470
4
8
0
4
9
0
5
0
0
510520
530
540
550
56
0
5
7
0
5
8
0
590
6
0
0
6
1
0
6
2
0
630
640
650
660
670
680
690
70
0
7
1
0
32
0
32
0
32
0
33
0
3
3
0
33
0
340
3
4
0
34
0
350
360
370
380
390
400
41
0
42
0
4
3
0
440
45
0
460
470
4
8
0
490
500
510
520
530
540
5
5
0
550
550
560
570
580
590
600
610
620
630
350
350
360
360
370
370
350
3
6
0
360
360
3
5
0
35
0
360
36
0
37
0
380
390
400
4
1
0
420
430
440
45
0
460
470480
480
4
8
0
490
500
510
520
530
540
550
560
570
580
590
6
0
0
6
1
0
620
630
360
370
370
37
0
38
0
38
0
390
400
41
0
42
0
430
44
0
450
460
5
9
0
6
0
0
6
1
0
4
9
0
5
0
0
510
520
530
5
4
0
43
0
440
45
0
460
470
4
2
0
4
2
0
420
43
0
440
450
460
500
P
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TOYON
R
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GARDEN TRAIL
L
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C
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E-2 LOWER
I-13
I-11
I-10
I-12
I-9
REV. NO.
DATE OF ISSUE:
DRAWN BY:
DESIGNED BY:
CHECKED BY:
APPROVED BY:
DATE DESCRIPTION APPROVED BY
This drawing has not been published but rather has been prepared by Geo-Logic Associates, Inc. for use by the client named in the title block, solely in respect of the construction
operation, and maintenance of the facility named in the title block. Geo-Logic Associates, Inc. shall not be liable for the use of this drawing on any other facility or for any other purpose.
PROJECT NO.
DRAWING NO.
3150 Bristol Street Suite 210, Costa Mesa, California 92626
geo-logic.com│714.465.8240 30940 HAWTHORNE BLVD.
RANCHO PALOS VERDES,CA 90275
THE CITY OF
RANCHO PALOS VERDES
N:
\
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LEGEND
100'50'0'100'200'
CITY OF RANCHO PALOS VERDES
PORTUGUESE BEND LANDSLIDE
MITIGATION
LOS ANGELES COUNTY, CA
SO23.1202PROPOSED E-2 LOWER HYDRAUGER LOCATION
5
INTERIM WORK PRODUCT - NOT FOR CONSTRUCTION
PENDING PENDING PENDING PENDING
---- ------------
---- ------------
---- ------------
---- ------------
---- ------------
PENDING
AW
CM
PENDING
PENDING
EXISTING TOPOGRAPHY, 10 FT ELEVATION CONTOUR200
APPROXIMATE LIMITS OF SUBSLIDES OF PORTUGUESE BEND
LANDSLIDE (BASED LEIGHTON, 2000)
APPROXIMATE LIMITS OF PORTUGUESE BEND LANDSLIDE
(BASED ON LEIGHTON, 2000)
PROPOSED HYDRAUGER ARRAY LOCATION. YELLOW SHADED
AREA REPRESENTS ACCESS, LAYDOWN AREA, AND HYDRAUGER
INITIATION AREA, BLACK LINE REPRESENTS DIRECTION AND
LENGTH OF HYDRAUGERS IN PLAN VIEW.
E-2 LOWER
APPROXIMATE LOCATION OF SHORELINE
PRESERVE PROPERTY BOUNDARY
BRIC PROJECT LIMITS(8)
PROPOSED FLEXIBLE DISCHARGE LINE TO KLONDIKE CANYON
APPROXIMATE LOCATION OF TRAIL BASED CITY OF RANCHO
PALOS VERDES MAPS
EXISTING IMPROVEMENTS BASED ON 2024 CALVADA
SURVEYING, INC. SURVEY UPDATE.
PROPOSED INSTRUMENTATION LOCATION
(DUAL VERTICAL BOREHOLE)I-13
8."BRIC PROJECT LIMITS" DENOTES PROJECT AREA IDENTIFIED IN
"BUILDING RESILIENT INFRASTRUCTURE AND COMMUNITIES" FUNDING
APPLICATION PACKAGE.
7.CONTRACTOR IS RESPONSIBLE TO CAPTURE WATER PRODUCED
FROM DRAINS DURING CONSTRUCTION; PERFORM ANALYTICAL
LABORATORY TESTING OF REPRESENTATIVE WATER SAMPLES;
FURNISH AND INSTALL STORAGE, TREATMENT, AND/OR PUMPING
EQUIPMENT AS NEEDED FOR COMPLIANCE WITH PERMIT
REQUIREMENTS.
6.CONTRACTOR TO INSTALL PLUMBING CONNECTIONS TO EXISTING
DRAINAGE LINES AND/OR PROPOSED SWALES.
5.CONTRACTOR TO FURNISH AND INSTALL PUMPS AND ELECTRICAL
CONNECTIONS FOR PUMP-ASSISTED SWALES.
4.CONTRACTOR IS RESPONSIBLE TO FIELD VERIFY ELEVATIONS
SHOWN.
3.EXISTING TOPOGRAPHY PROVIDED BY CITY OF RANCHOS PALOS
VERDES DATED 2017 AND UPDATED BY CALVADA SURVEYING, INC. IN
JANUARY 2024.
2.CONTRACTOR IS RESPONSIBLE TO INSTALL GROUTED CONDUCTOR
AND/OR SURFACE CASING WITH ADEQUATE CAPACITY TO PREVENT
BLOWOUT AND/OR OTHER POTENTIAL ADVERSE EVENTS RELATED TO
HYDRAUGER INSTALLATION, OPERATION, AND/OR MAINTENANCE.
1.CONTRACTOR IS RESPONSIBLE TO PERFORM PRE-CONSTRUCTION
CONFIRMATION SUBSURFACE EXPLORATION TO VERIFY
GROUNDWATER, SOIL, AND BEDROCK CONDITIONS.
NOTES
TIE INTO EXISTING CORRUGATED
METAL PIPE (CMP)
PROPOSED FLEXIBLE
DISCHARGE LINE TO CMP
(APPROXIMATE LENGTH IN
PLAN = 115 FT)
LE
N
G
T
H
I
N
P
L
A
N
=
1
,
2
0
0
F
E
E
T
(
T
Y
P
I
C
A
L
)
C-5
55
0
5
6
0
5
7
0
5
8
0
590
590
5
9
0
60
0
610
620
63
0
64
0
460
470
48
0
49
0
5
0
0
510
520
530
54
0
550
5
6
0
5
7
0
580
590
600
610
62
0
63
0
6
4
0
6
5
0
6
6
0
67
0
680
690
70
0
450
460
470
4
8
0
4
9
0
50
0
510520
530
540
550
56
0
5
7
0
5
8
0
590
6
0
0
6
1
0
6
2
0
630
640
650
660
670
680
690
70
0
7
1
0
390
400
41
0
42
0
4
3
0
440
45
0
460
470
4
8
0
490
500
510
520
530
540
5
5
0
550
5
5
0
560
570
580
590
600
610
620
630
640
650
360
37
0
380
390
400
4
1
0
420
430
440
45
0
460
470480
480
4
8
0
490
500
510
520
530
540
550
560
570
580
590
6
0
0
6
1
0
620
630
390
400
41
0
42
0
430
44
0
450
460
5
9
0
6
0
0
6
1
0
590 60
0
61
0
62
0
63
0
64
0
65
0
66
0
67
0
59060
0
610
620
630
640
4
9
0
5
0
0
510
520
530
5
4
0
43
0
440
45
0
460
470
440
450
460
WA
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B
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A
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TOYON
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GARDEN TRAIL
L
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S
C
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P
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I
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E-2 UPPER
I-12
I-13
REV. NO.
DATE OF ISSUE:
DRAWN BY:
DESIGNED BY:
CHECKED BY:
APPROVED BY:
DATE DESCRIPTION APPROVED BY
This drawing has not been published but rather has been prepared by Geo-Logic Associates, Inc. for use by the client named in the title block, solely in respect of the construction
operation, and maintenance of the facility named in the title block. Geo-Logic Associates, Inc. shall not be liable for the use of this drawing on any other facility or for any other purpose.
PROJECT NO.
DRAWING NO.
3150 Bristol Street Suite 210, Costa Mesa, California 92626
geo-logic.com│714.465.8240 30940 HAWTHORNE BLVD.
RANCHO PALOS VERDES,CA 90275
THE CITY OF
RANCHO PALOS VERDES
N:
\
R
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C
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L
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100'50'0'100'200'
CITY OF RANCHO PALOS VERDES
PORTUGUESE BEND LANDSLIDE
MITIGATION
LOS ANGELES COUNTY, CA
SO23.1202PROPOSED E-2 UPPER HYDRAUGER LOCATION
6
INTERIM WORK PRODUCT - NOT FOR CONSTRUCTION
PENDING PENDING PENDING PENDING
---- ------------
---- ------------
---- ------------
---- ------------
---- ------------
PENDING
AW
CM
PENDING
PENDING
LE
N
G
T
H
I
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P
L
A
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=
1
,
2
0
0
F
E
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T
(
T
Y
P
I
C
A
L
)
PROPOSED FLEXIBLE DISCHARGE LINE TO CMP
(APPROXIMATE LENGTH IN PLAN = 830 FT)
TIE INTO EXISTING CORRUGATED
METAL PIPE (CMP)
LEGEND
EXISTING TOPOGRAPHY, 10 FT ELEVATION CONTOUR200
APPROXIMATE LIMITS OF SUBSLIDES OF PORTUGUESE BEND
LANDSLIDE (BASED LEIGHTON, 2000)
APPROXIMATE LIMITS OF PORTUGUESE BEND LANDSLIDE
(BASED ON LEIGHTON, 2000)
PROPOSED HYDRAUGER ARRAY LOCATION. YELLOW SHADED
AREA REPRESENTS ACCESS, LAYDOWN AREA, AND HYDRAUGER
INITIATION AREA, BLACK LINE REPRESENTS DIRECTION AND
LENGTH OF HYDRAUGERS IN PLAN VIEW.
E-2 UPPER
APPROXIMATE LOCATION OF SHORELINE
PRESERVE PROPERTY BOUNDARY
BRIC PROJECT LIMITS(8)
PROPOSED FLEXIBLE DISCHARGE LINE TO KLONDIKE CANYON
APPROXIMATE LOCATION OF TRAIL BASED CITY OF RANCHO
PALOS VERDES MAPS
EXISTING IMPROVEMENTS BASED ON 2024 CALVADA
SURVEYING, INC. SURVEY UPDATE.
PROPOSED INSTRUMENTATION LOCATION
(DUAL VERTICAL BOREHOLE)I-13
8."BRIC PROJECT LIMITS" DENOTES PROJECT AREA IDENTIFIED IN
"BUILDING RESILIENT INFRASTRUCTURE AND COMMUNITIES" FUNDING
APPLICATION PACKAGE.
7.CONTRACTOR IS RESPONSIBLE TO CAPTURE WATER PRODUCED
FROM DRAINS DURING CONSTRUCTION; PERFORM ANALYTICAL
LABORATORY TESTING OF REPRESENTATIVE WATER SAMPLES;
FURNISH AND INSTALL STORAGE, TREATMENT, AND/OR PUMPING
EQUIPMENT AS NEEDED FOR COMPLIANCE WITH PERMIT
REQUIREMENTS.
6.CONTRACTOR TO INSTALL PLUMBING CONNECTIONS TO EXISTING
DRAINAGE LINES AND/OR PROPOSED SWALES.
5.CONTRACTOR TO FURNISH AND INSTALL PUMPS AND ELECTRICAL
CONNECTIONS FOR PUMP-ASSISTED SWALES.
4.CONTRACTOR IS RESPONSIBLE TO FIELD VERIFY ELEVATIONS
SHOWN.
3.EXISTING TOPOGRAPHY PROVIDED BY CITY OF RANCHOS PALOS
VERDES DATED 2017 AND UPDATED BY CALVADA SURVEYING, INC. IN
JANUARY 2024.
2.CONTRACTOR IS RESPONSIBLE TO INSTALL GROUTED CONDUCTOR
AND/OR SURFACE CASING WITH ADEQUATE CAPACITY TO PREVENT
BLOWOUT AND/OR OTHER POTENTIAL ADVERSE EVENTS RELATED TO
HYDRAUGER INSTALLATION, OPERATION, AND/OR MAINTENANCE.
1.CONTRACTOR IS RESPONSIBLE TO PERFORM PRE-CONSTRUCTION
CONFIRMATION SUBSURFACE EXPLORATION TO VERIFY
GROUNDWATER, SOIL, AND BEDROCK CONDITIONS.
NOTES
C-6
150
16
0
170
180
1
9
0
21
0
70
4
0
5
0
60
70
40
50
60
7
0
8
0
9
0
10
0
30
40
50
6
0
70
60
70
80
9
0
100
110
120
130
140
15
0
160
170
180
190
200
1
8
0
1
9
0
2
0
0
2
1
0
22
0
2
3
0
2
4
0
2
5
0
2
6
0
27
0
2
8
0
280
2
8
0
2
9
0
290
3
0
0
300
31
0
31
0
3
2
0
320
3
3
0
330
3
4
0
340
3
5
0
350
3
6
0
360
3
7
0
370
41
0
4
2
0
4
3
0
4
4
0
4
5
0
4
6
0
4
7
0
480
170
180
180
180
190
20
0
60
70
80
90
100
110
120
13
0
140
150
1
6
0
16
0
160
170
170
180
180
180
180
190190
10
20
30
40
5
0
6
0
70
80
8
0
80
90100
110
120
130
140
150
16
0
160
160
170
180
190
200
10
20
30
4050
60
70
80
90
100
110
110
110
12
0
120
120
130
140
15
0
160
17
0
180
16
0
16
0
17
0
1
7
0
18
0
1
8
0
180
1
8
0
190
200
210
220
230
100
2
0
0
YA
C
H
T
H
A
R
B
O
R
D
R
I
V
E
(
P
R
I
V
A
T
E
)
PALOS VERDES DRIVE SOUTH
D
R
A
I
N
1
DRAIN 3
DRA
I
N
5
E-1
I-1
I-2
I-3
I-4
I-5
I-6
I-7
150
160
160
160
170
170
170
180
18
0
18
0
180
180
19
0
21
0
190
200
210
220
230
240
250
260
270
28
0
290
26
0
270
28
0
29
0
300
310
320
33
0
34
0
350
36
0
370
38
0
380
36
0
370
380
38
0
24
0
240
250
250
260
260
270
270
280
280
290
290
300
300
310
310
320
330
340
10
10
2030
40 5060
70
40
50
60
70
40
50
60
70
80
90
100
30
40
50
60
70
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
18
0
19
0
200
210
220
230
240
25
0
26
0
270
28
0
280
28
0
29
0
290
30
0
300
310
310
3
2
0
320
33
0
330
340
340
350
350
36
0
360
37
0
370
250
25
0
260
260
270
27
0
280
28
0
29
0
30
0
31
0
32
0
33
0
340
350
360
370
38
0
39
0
400
41
0
42
0
420
420
43
0
430
430
440
440
440
450
450
45
0
450
45
0
460
460
46
0
470
480
49
0
50
0
51
0
520
530
540
550
560
57
0
58
0
590
590
59
0
600
610
620
630
640
690
690
700
700
700
710
720
730
740
750
760
610
620
630
640
650
660
670
680
690
470
480
490
500
510
520
530
540
550
560
570
580
590
600
600
610
610
620
620
630
630
640
640
650
650
660
660
600
610
620
630
640
650
660
670
680
690
700
700
410
42
0
43
0
44
0
450
46
0
470
480
490
500
510
520
530
54
0
550
480
480
490
490
500
500
510
510
520
520
530
530
540
540
550
550
560
570
570
570
580
570
570
580
57
0
170
170
180
180
180
180
190
190
200
200
200
210
220
230
240
25
0
250
250
250
250
260
270
280
290
29
0
290
30
0
30
0
300
31
0
31
0
310
32
0
330
34
0
350
360
370
380
390
400
410
42
0
430
440
450
450
460
470
480
490
50
0
510520530
540
550
56
0
57
0
580
590
600
610
620
630
640
65
0
66
0
670
680
690
700
60
70
80
90
100
110
120
130
140
150
16
0
160
160
170
170
170
180
180
180
180
180
190190
190
200
210
220
230
240
250
260
260
260
270
270
270
280
290
290
29
0
290
290
30
0
300
300
310
310
310
320
330
340
350
360
37
0
38
0
390
40
0
41
0
420
430440450
460
470
48
0
49
0
500
510520530
540
550
560
57
0
580
590
60
0
61
0
62
0
630
640650
660
670
680
690
700
71
0
10
20
30
40
50
60
70
80
8
0
80
90100
110
120
130
140
150
160
160
160
170
180
190
200
210
220
230
240
250
260
270
270
270
280
290
290
290
300
300
300
310
320
320
320
330
33
0
330
340
340
340
350
360
370
380
390
400
410
420
43
0
440
450
460
470
480
490
500
510
520
530
540
550
550
550
560570
580590600
610
620
10
20
30
4050
60
70
80
90
100
110110
110
120
120
120
130
140
150
160
170
180
160160
170
17
0
180
18
0
180
18
0
190
200210
220
230
240
250
260
270
280
280
280
280
290
29
0
28
0
29
0
300
31
0
320
320
320
330
340
350
350
360
360
370
370
350
36
0
360
360
350
350
360
360
370
380
390
400
410
420
430
440
450
460470480
480
480
490
500510
520
530
540
550
560
570
580
590
600
61
0
620
630
10
2030
40
5060
70
70
70
80
90
100
110
120
130
140
150
160
170
170
170
180
180
180
19
0
190
190
20
0
210
220
230
240
250
260
270
28
0
290
290
290
300
300
30
0
310
320
330
340
350
360
370
370
370
380
380
390
400
410
420
430
440
450
460
10
20304050
60
60
60
60
60
70
70
70
80
80
80
90
90
90
100110
120
130140150160
170
190
200
210
220
230
240
240
240
250260
270
280
290
300
310
320
330
340
350
360
370
380
390
390
390
390
10
20304050
6070809090
70
70
80
80
90
100
110
120
130
140
150
160
170
170
170
180
190
200
210
220
230
240
240
240
250
260
270
280
290
300
300
300
310320330340
350360
370
370
380
380
10
20
30
40
50
60
70
80
90
100110120
13
0
14
0
15
0
10
20
30
405060708090100110
120130140150
150
150
160
170
180
190
200210
210
210
220
230
24
0
250
260
26
0
270
270
270
270
270
280
290
300
310
320330
340
350
360
370
370
380
380
10
20
30
40
50
60
70
70
70
80
90
100
11
0
12
0
130
140
150
160
170
170
170
180
190
200
200
200
210
210
210
220
220
220
230
230
230
240
250
260
270
280
290300
10
20304050
60
70
80
90
100110
120
130
140
150
160
160
160170180
190
200
210
220
230
230
230
240
240
240
250
250
250
260
270
10
20
30
40
50
60
70
80
90100
110120130140
150
160
170180
190
190
200
200
210
210
22
0
220
230
230
240
240
190
200
210
220
230
24
0
25
0
809010
0110120
13
0
14
0
150
160
170
180
190
200
210
220
220
230
230
1020304050
60
70
80
90
100
110
120
130
14
0
140
140
150
160170180
190
200
210
22
0
230
240
250
260
260
260
270
270
270
280290
490
50
0
510
520
53054
0
430
440
450
460
470
40
0
410
42
0
420
420
430
440
450
460
20
304050
60
70
350
5
0
100
2
0
0
25
0
30
0
500
IR
I
S
H
F
A
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M
T
R
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I
L
P
E
P
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T
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WAT
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R
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ISHIBASHI
T
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A
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BU
R
M
A
R
O
A
D
T
R
A
I
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TOYON R
O
A
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T
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A
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GARDEN TRAIL
L
A
N
D
S
L
I
D
E
S
C
A
R
P
T
R
A
I
L
SA
N
D
B
O
X
T
R
A
I
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PA
N
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R
A
M
A
T
R
A
I
L
BA
R
N
O
W
L
T
R
A
I
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PALOS
V
E
R
D
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S
D
R
I
V
E
S
O
U
T
H
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H
T
H
A
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B
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R
D
R
I
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E
(
P
R
I
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T
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)
PALOS VERDES DRIVE SOUTH
D
R
A
I
N
1
DRAIN 3
DRAI
N
5
E-1
E-2 LOWER
E-2 UPPER
DISTANCE ALONG CROSS-SECTION (FEET)
-50
0
50
100
150
200
250
300
-50
0
50
100
150
200
250
300
-1+00 0+00 1+00 2+00 3+00 4+00 5+00 6+00 7+00 8+00 9+00 10+00 11+00 12+00 13+00
I-1 I-2
I-3 I-4 I-5
T.D. = 150'
T.D. = 200'
T.D. = 200'T.D. = 200'T.D. = 200'
-50
0
50
100
150
200
250
300
-50
0
50
100
150
200
250
300
-1+00-1+00 0+00 1+00 2+00 3+00 4+00 5+00 6+00 7+00 8+00 9+00 10+00 11+00 12+00 13+00
I-6
T.D. = 177'
I-7
T.D. = 144'
-100
-50
0
50
100
150
200
250
300
-100
-50
0
50
100
150
200
250
300
-1+00-1+00 0+00 1+00 2+00 3+00 4+00 5+00 6+00 7+00 8+00 9+00 10+00 11+00 12+00 13+0013+00
N:
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LEGEND
EXISTING GROUND SURFACE
ACTIVE BASAL RUPTURE SURFACE
REV. NO.
DATE OF ISSUE:
DRAWN BY:
DESIGNED BY:
CHECKED BY:
APPROVED BY:
DATE DESCRIPTION APPROVED BY
This drawing has not been published but rather has been prepared by Geo-Logic Associates, Inc. for use by the client named in the title block, solely in respect of the construction
operation, and maintenance of the facility named in the title block. Geo-Logic Associates, Inc. shall not be liable for the use of this drawing on any other facility or for any other purpose.
PROJECT NO.
DRAWING NO.
3150 Bristol Street Suite 210, Costa Mesa, California 92626
geo-logic.com│714.465.8240 30940 HAWTHORNE BLVD.
RANCHO PALOS VERDES,CA 90275
THE CITY OF
RANCHO PALOS VERDES
CITY OF RANCHO PALOS VERDES
PORTUGUESE BEND LANDSLIDE
MITIGATION
LOS ANGELES COUNTY, CA
SO23.1202PROPOSED E-1 HYDRAUGER PROFILE
7
PENDING PENDING PENDING PENDING
---- ------------
---- ------------
---- ------------
---- ------------
---- ------------
PENDING
AW
CM
PENDING
PENDING
KEY MAP (NOT TO SCALE)
200'100'0'200'400'
GROUNDWATER SURFACE
PROPOSED DRAIN
APPROXIMATE LIMITS OF PORTUGUESE BEND LANDSLIDE
(BASED ON LEIGHTON, 2000)
ARRAY "E-1" DRAIN 1
ARRAY "E-1" DRAIN 3
ARRAY "E-1" DRAIN 5
DRAIN 1 COORDINATES TABLE
POINT STATION
N E Z COMMENT
1 UPDATE UPDATE UDPATE UPDATE BEGIN CURVE
2 UPDATE UPDATE UPDATE UPDATE END CURVE
3 UPDATE UPDATE UPDATE UPDATE
100'50'0'100'200'
100'50'0'100'200'
3."BRIC PROJECT LIMITS" DENOTES PROJECT AREA IDENTIFIED IN
"BUILDING RESILIENT INFRASTRUCTURE AND COMMUNITIES" FUNDING
APPLICATION PACKAGE.
2.MINIMUM CURVE RADIUS 400 FEET.
1.FOR DRAINS 2 AND 4 COORDINATES, INTERPOLATE BETWEEN
ADJACENT DRAINS.
NOTES
100'50'0'100'200'
DRAIN 3 COORDINATES TABLE
POINT STATION
N E Z COMMENT
1 UPDATE UPDATE UDPATE UPDATE BEGIN CURVE
2 UPDATE UPDATE UPDATE UPDATE END CURVE
3 UPDATE UPDATE UPDATE UPDATE
DRAIN 5 COORDINATES TABLE
POINT STATION
N E Z COMMENT
1 UPDATE UPDATE UDPATE UPDATE BEGIN CURVE
2 UPDATE UPDATE UPDATE UPDATE END CURVE
3 UPDATE UPDATE UPDATE UPDATE
INTERIM WORK PRODUCT - NOT FOR CONSTRUCTION
PROPOSED INSTRUMENTATION LOCATION (DUAL
VERTICAL BOREHOLE)I-5
BRIC PROJECT LIMITS(3)
LENGTH IN PLAN = 1,200 FEET (TYPICAL)
BASAL RUPTURE SURFACE
GROUNDWATER TABLE GROUND SURFACE
PROPOSED HYDRAUGER ALIGNMENT
BASAL RUPTURE SURFACE
GROUNDWATER TABLE
GROUND SURFACE
PROPOSED HYDRAUGER ALIGNMENT
BASAL RUPTURE SURFACE
GROUNDWATER TABLE
GROUND SURFACE
PROPOSED HYDRAUGER ALIGNMENT
PROPOSED DISCHARGE LINE TO KLONDIKE CANYON
PROPOSED HYDRAUGER INITIATION POINT
PROPOSED HYDRAUGER INITIATION POINT
PROPOSED HYDRAUGER INITIATION POINT
PRESERVE PROPERTY BOUNDARY
C-7
3
6
0
3
7
0
380
3
8
0
420
420
430
430
440
4
5
0
450
4
5
0
4
6
0
470
48
0
4
9
0
5
0
0
5
1
0
520
5
3
0
5
4
0
55
0
5
6
0
5
7
0
5
8
0
590
590
5
9
0
60
0
610
620
63
0
64
0
3
0
0
3
1
0
3
2
0
330
3
4
0
350
360
37
0
380
39
0
40
0
41
0
42
0
430
440
450
450
460
470
48
0
49
0
5
0
0
510
520
530
54
0
550
5
6
0
5
7
0
580
590
600
610
62
0
63
0
64
0
6
5
0
6
6
0
67
0
680
690
70
0
2
9
0
290
3
0
0
310
32
0
330
340
35
0
36
0
3
7
0
3
8
0
3
9
0
4
0
0
4
1
0
420
430
440
450
460
470
4
8
0
4
9
0
50
0
510520530
540
550
56
0
5
7
0
58
0
590
6
0
0
6
1
0
6
2
0
630
640
650
660
670
680
690
70
0
7
1
0
320
32
0
33
0
3
3
0
340
3
4
0
34
0
350
360
370
380
390
400
410
42
0
4
3
0
440
45
0
460
470
4
8
0
490
500
510
520
530
540
55
0
550
550
560
570
580
590
600
610
620
630
350
360
370
350
3
6
0
360
360
3
5
0
350
360
36
0
370
380
390
400
4
1
0
420
430
440
45
0
460
470480
480
48
0
490
500
510
520
530
540
550
560
570
580
590
6
0
0
6
1
0
620
630
370
37
0
38
0
380
390
400
41
0
42
0
430
44
0
450
460
4
9
0
5
0
0
510
520
530
5
4
0
43
0
440
45
0
460
470
450
460
P
E
P
P
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R
T
R
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T
R
A
I
L
WA
T
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ISHIBAS
H
I
T
R
A
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B
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R
M
A
R
O
A
D
T
R
A
I
L
TOYON
R
O
A
D
T
R
A
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GARDEN TRAIL
L
A
N
D
S
L
I
D
E
S
C
A
R
P
T
R
A
I
L
E-2 LOWER
DRA
I
N
1
DR
A
I
N
3
D
R
A
I
N
5
I-13
I-11
I-10
I-12
I-9
150
160
160
160
170
170
170
180
18
0
18
0
180
180
19
0
21
0
190
200
210
220
230
240
250
260
270
28
0
290
26
0
270
28
0
29
0
300
310
320
33
0
34
0
350
36
0
370
38
0
380
36
0
370
380
38
0
24
0
240
250
250
260
260
270
270
280
280
290
290
300
300
310
310
320
330
340
10
10
2030
40 5060
70
40
50
60
70
40
50
60
70
80
90
100
30
40
50
60
70
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
18
0
19
0
200
210
220
230
240
25
0
26
0
270
28
0
280
28
0
29
0
290
30
0
300
310
310
3
2
0
320
33
0
330
340
340
350
350
36
0
360
37
0
370
250
25
0
260
260
270
27
0
280
28
0
29
0
30
0
31
0
32
0
33
0
340
350
360
370
38
0
39
0
400
41
0
42
0
420
420
43
0
430
430
440
440
440
450
450
45
0
450
45
0
460
460
46
0
470
480
49
0
50
0
51
0
520
530
540
550
560
57
0
58
0
590
590
59
0
600
610
620
630
640
690
690
700
700
700
710
720
730
740
750
760
610
620
630
640
650
660
670
680
690
470
480
490
500
510
520
530
540
550
560
570
580
590
600
600
610
610
620
620
630
630
640
640
650
650
660
660
600
610
620
630
640
650
660
670
680
690
700
700
410
42
0
43
0
44
0
450
46
0
470
480
490
500
510
520
530
54
0
550
480
480
490
490
500
500
510
510
520
520
530
530
540
540
550
550
560
570
570
570
580
570
570
580
57
0
170
170
180
180
180
180
190
190
200
200
200
210
220
230
240
25
0
250
250
250
250
260
270
280
290
29
0
290
30
0
30
0
300
31
0
31
0
310
32
0
330
34
0
350
360
370
380
390
400
410
42
0
430
440
450
450
460
470
480
490
50
0
510520530
540
550
56
0
57
0
580
590
600
610
620
630
640
65
0
66
0
670
680
690
700
60
70
80
90
100
110
120
130
140
150
16
0
160
160
170
170
170
180
180
180
180
180
190190
190
200
210
220
230
240
250
260
260
260
270
270
270
280
290
290
29
0
290
290
30
0
300
300
310
310
310
320
330
340
350
360
37
0
38
0
390
40
0
41
0
420
430440450
460
470
48
0
49
0
500
510520530
540
550
560
57
0
580
590
60
0
61
0
62
0
630
640650
660
670
680
690
700
71
0
10
20
30
40
50
60
70
80
8
0
80
90100
110
120
130
140
150
160
160
160
170
180
190
200
210
220
230
240
250
260
270
270
270
280
290
290
290
300
300
300
310
320
320
320
330
33
0
330
340
340
340
350
360
370
380
390
400
410
420
43
0
440
450
460
470
480
490
500
510
520
530
540
550
550
550
560570
580590600
610
620
10
20
30
4050
60
70
80
90
100
110110
110
120
120
120
130
140
150
160
170
180
160160
170
17
0
180
18
0
180
18
0
190
200210
220
230
240
250
260
270
280
280
280
280
290
29
0
28
0
29
0
300
31
0
320
320
320
330
340
350
350
360
360
370
370
350
36
0
360
360
350
350
360
360
370
380
390
400
410
420
430
440
450
460470480
480
480
490
500510
520
530
540
550
560
570
580
590
600
61
0
620
630
10
2030
40
5060
70
70
70
80
90
100
110
120
130
140
150
160
170
170
170
180
180
180
19
0
190
190
20
0
210
220
230
240
250
260
270
28
0
290
290
290
300
300
30
0
310
320
330
340
350
360
370
370
370
380
380
390
400
410
420
430
440
450
460
10
20304050
60
60
60
60
60
70
70
70
80
80
80
90
90
90
100110
120
130140150160
170
190
200
210
220
230
240
240
240
250260
270
280
290
300
310
320
330
340
350
360
370
380
390
390
390
390
10
20304050
6070809090
70
70
80
80
90
100
110
120
130
140
150
160
170
170
170
180
190
200
210
220
230
240
240
240
250
260
270
280
290
300
300
300
310320330340
350360
370
370
380
380
10
20
30
40
50
60
70
80
90
100110120
13
0
14
0
15
0
10
20
30
405060708090100110
120130140150
150
150
160
170
180
190
200210
210
210
220
230
24
0
250
260
26
0
270
270
270
270
270
280
290
300
310
320330
340
350
360
370
370
380
380
10
20
30
40
50
60
70
70
70
80
90
100
11
0
12
0
130
140
150
160
170
170
170
180
190
200
200
200
210
210
210
220
220
220
230
230
230
240
250
260
270
280
290300
10
20304050
60
70
80
90
100110
120
130
140
150
160
160
160170180
190
200
210
220
230
230
230
240
240
240
250
250
250
260
270
10
20
30
40
50
60
70
80
90100
110120130140
150
160
170180
190
190
200
200
210
210
22
0
220
230
230
240
240
190
200
210
220
230
24
0
25
0
809010
0110120
13
0
14
0
150
160
170
180
190
200
210
220
220
230
230
1020304050
60
70
80
90
100
110
120
130
14
0
140
140
150
160170180
190
200
210
22
0
230
240
250
260
260
260
270
270
270
280290
490
50
0
510
520
53054
0
430
440
450
460
470
40
0
410
42
0
420
420
430
440
450
460
20
304050
60
70
350
5
0
100
2
0
0
25
0
30
0
500
IR
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F
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WAT
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ISHIBASHI
T
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BU
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TOYON R
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GARDEN TRAIL
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(
P
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)
PALOS VERDES DRIVE SOUTH
E-2 LOWER
DRA
I
N
1
DR
A
I
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3
D
R
A
I
N
5
DISTANCE ALONG CROSS-SECTION (FEET)
250
300
350
400
450
500
550
600
650
700
250
300
350
400
450
500
550
600
650
700
-0+93 0+00 1+00 2+00 3+00 4+00 5+00 6+00 7+00 8+00 9+00 10+00 11+00 12+0012+07
250
300
350
400
450
500
550
600
650
250
300
350
400
450
500
550
600
650
-0+93 0+00 1+00 2+00 3+00 4+00 5+00 6+00 7+00 8+00 9+00 10+00 11+00 12+0012+07
250
300
350
400
450
500
250
300
350
400
450
500
-0+93 0+00 1+00 2+00 3+00 4+00 5+00 6+00 7+00 8+00 9+00 10+00 11+00 12+0012+07
N:
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LEGEND
EXISTING GROUND SURFACE
ACTIVE BASAL RUPTURE SURFACE
REV. NO.
DATE OF ISSUE:
DRAWN BY:
DESIGNED BY:
CHECKED BY:
APPROVED BY:
DATE DESCRIPTION APPROVED BY
This drawing has not been published but rather has been prepared by Geo-Logic Associates, Inc. for use by the client named in the title block, solely in respect of the construction
operation, and maintenance of the facility named in the title block. Geo-Logic Associates, Inc. shall not be liable for the use of this drawing on any other facility or for any other purpose.
PROJECT NO.
DRAWING NO.
3150 Bristol Street Suite 210, Costa Mesa, California 92626
geo-logic.com│714.465.8240 30940 HAWTHORNE BLVD.
RANCHO PALOS VERDES,CA 90275
THE CITY OF
RANCHO PALOS VERDES
CITY OF RANCHO PALOS VERDES
PORTUGUESE BEND LANDSLIDE
MITIGATION
LOS ANGELES COUNTY, CA
SO23.1202PROPOSED E-2 LOWER HYDRAUGER PROFILE
8
PENDING PENDING PENDING PENDING
---- ------------
---- ------------
---- ------------
---- ------------
---- ------------
PENDING
AW
CM
PENDING
PENDING
KEY MAP (NOT TO SCALE)
200'100'0'200'400'
GROUNDWATER SURFACE
PROPOSED DRAIN
APPROXIMATE LIMITS OF PORTUGUESE BEND LANDSLIDE
(BASED ON LEIGHTON, 2000)
ARRAY "E-2L" DRAIN 1
ARRAY "E-2L" DRAIN 3
ARRAY "E-2L" DRAIN 5
DRAIN 1 COORDINATES TABLE
POINT STATION
N E Z COMMENT
1 UPDATE UPDATE UDPATE UPDATE BEGIN CURVE
2 UPDATE UPDATE UPDATE UPDATE END CURVE
3 UPDATE UPDATE UPDATE UPDATE
100'50'0'100'200'
100'50'0'100'200'
2.MINIMUM CURVE RADIUS 400 FEET.
1.FOR DRAINS 2 AND 4 COORDINATES, INTERPOLATE BETWEEN
ADJACENT DRAINS.
NOTES
100'50'0'100'200'
DRAIN 3 COORDINATES TABLE
POINT STATION
N E Z COMMENT
1 UPDATE UPDATE UDPATE UPDATE BEGIN CURVE
2 UPDATE UPDATE UPDATE UPDATE END CURVE
3 UPDATE UPDATE UPDATE UPDATE
DRAIN 5 COORDINATES TABLE
POINT STATION
N E Z COMMENT
1 UPDATE UPDATE UDPATE UPDATE BEGIN CURVE
2 UPDATE UPDATE UPDATE UPDATE END CURVE
3 UPDATE UPDATE UPDATE UPDATE
INTERIM WORK PRODUCT - NOT FOR CONSTRUCTION
PROPOSED INSTRUMENTATION LOCATION (DUAL
VERTICAL BOREHOLE)I-5
BRIC PROJECT LIMITS
LE
N
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T
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=
1
,
2
0
0
F
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T
(
T
Y
P
I
C
A
L
)
GROUNDWATER TABLE
GROUND SURFACE
GROUNDWATER TABLE
GROUND SURFACE
BASAL RUPTURE SURFACE
GROUNDWATER TABLE
GROUND SURFACE
PROPOSED DISCHARGE LINE TO KLONDIKE CANYON
PRESERVE PROPERTY BOUNDARY
C-8
5
3
0
5
4
0
55
0
5
6
0
5
7
0
5
8
0
590
590
5
9
0
60
0
610
620
63
0
64
0
460
470
48
0
49
0
5
0
0
510
520
530
54
0
550
5
6
0
5
7
0
580
590
600
610
62
0
63
0
64
0
6
5
0
6
6
0
67
0
680
690
70
0
420
430
440
450
460
470
4
8
0
4
9
0
50
0
510520530
540
550
56
0
5
7
0
58
0
590
6
0
0
6
1
0
6
2
0
630
640
650
660
670
680
690
70
0
7
1
0
370
380
390
400
410
42
0
4
3
0
440
45
0
460
470
4
8
0
490
500
510
520
530
540
55
0
550
550
560
570
580
590
600
610
620
630
640
650
360
37
0
380
390
400
4
1
0
420
430
440
45
0
460
470480
480
48
0
490
500
510
520
530
540
550
560
570
580
590
6
0
0
6
1
0
620
630
5
9
0
6
0
0
6
1
0
590 60
0
61
0
62
0
63
0
64
0
65
0
66
0
67
0
590600
610
620
630
640
4
9
0
5
0
0
510
520
530
5
4
0
43
0
440
45
0
460
470
WA
T
E
R
T
A
N
K
T
R
A
I
L
ISHIBAS
H
I
T
R
A
I
L
B
U
R
M
A
R
O
A
D
T
R
A
I
L
TOYON
R
O
A
D
T
R
A
I
L
GARDEN TRAIL
L
A
N
D
S
L
I
D
E
S
C
A
R
P
T
R
A
I
L
E-2 UPPER
DRA
I
N
1
DR
A
I
N
3
D
R
A
I
N
5
I-12
I-13
150
160
160
160
170
170
170
180
18
0
18
0
180
180
19
0
21
0
190
200
210
220
230
240
250
260
270
28
0
290
26
0
270
28
0
29
0
300
310
320
33
0
34
0
350
36
0
370
38
0
380
36
0
370
380
38
0
24
0
240
250
250
260
260
270
270
280
280
290
290
300
300
310
310
320
330
340
10
10
2030
40 5060
70
40
50
60
70
40
50
60
70
80
90
100
30
40
50
60
70
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
18
0
19
0
200
210
220
230
240
25
0
26
0
270
28
0
280
28
0
29
0
290
30
0
300
310
310
3
2
0
320
33
0
330
340
340
350
350
36
0
360
37
0
370
250
25
0
260
260
270
27
0
280
28
0
29
0
30
0
31
0
32
0
33
0
340
350
360
370
38
0
39
0
400
41
0
42
0
420
420
43
0
430
430
440
440
440
450
450
45
0
450
45
0
460
460
46
0
470
480
49
0
50
0
51
0
520
530
540
550
560
57
0
58
0
590
590
59
0
600
610
620
630
640
690
690
700
700
700
710
720
730
740
750
760
610
620
630
640
650
660
670
680
690
470
480
490
500
510
520
530
540
550
560
570
580
590
600
600
610
610
620
620
630
630
640
640
650
650
660
660
600
610
620
630
640
650
660
670
680
690
700
700
410
42
0
43
0
44
0
450
46
0
470
480
490
500
510
520
530
54
0
550
480
480
490
490
500
500
510
510
520
520
530
530
540
540
550
550
560
570
570
570
580
570
570
580
57
0
170
170
180
180
180
180
190
190
200
200
200
210
220
230
240
25
0
250
250
250
250
260
270
280
290
29
0
290
30
0
30
0
300
31
0
31
0
310
32
0
330
34
0
350
360
370
380
390
400
410
42
0
430
440
450
450
460
470
480
490
50
0
510520530
540
550
56
0
57
0
580
590
600
610
620
630
640
65
0
66
0
670
680
690
700
60
70
80
90
100
110
120
130
140
150
16
0
160
160
170
170
170
180
180
180
180
180
190190
190
200
210
220
230
240
250
260
260
260
270
270
270
280
290
290
29
0
290
290
30
0
300
300
310
310
310
320
330
340
350
360
37
0
38
0
390
40
0
41
0
420
430440450
460
470
48
0
49
0
500
510520530
540
550
560
57
0
580
590
60
0
61
0
62
0
630
640650
660
670
680
690
700
71
0
10
20
30
40
50
60
70
80
8
0
80
90100
110
120
130
140
150
160
160
160
170
180
190
200
210
220
230
240
250
260
270
270
270
280
290
290
290
300
300
300
310
320
320
320
330
33
0
330
340
340
340
350
360
370
380
390
400
410
420
43
0
440
450
460
470
480
490
500
510
520
530
540
550
550
550
560570
580590600
610
620
10
20
30
4050
60
70
80
90
100
110110
110
120
120
120
130
140
150
160
170
180
160160
170
17
0
180
18
0
180
18
0
190
200210
220
230
240
250
260
270
280
280
280
280
290
29
0
28
0
29
0
300
31
0
320
320
320
330
340
350
350
360
360
370
370
350
36
0
360
360
350
350
360
360
370
380
390
400
410
420
430
440
450
460470480
480
480
490
500510
520
530
540
550
560
570
580
590
600
61
0
620
630
10
2030
40
5060
70
70
70
80
90
100
110
120
130
140
150
160
170
170
170
180
180
180
19
0
190
190
20
0
210
220
230
240
250
260
270
28
0
290
290
290
300
300
30
0
310
320
330
340
350
360
370
370
370
380
380
390
400
410
420
430
440
450
460
10
20304050
60
60
60
60
60
70
70
70
80
80
80
90
90
90
100110
120
130140150160
170
190
200
210
220
230
240
240
240
250260
270
280
290
300
310
320
330
340
350
360
370
380
390
390
390
390
10
20304050
6070809090
70
70
80
80
90
100
110
120
130
140
150
160
170
170
170
180
190
200
210
220
230
240
240
240
250
260
270
280
290
300
300
300
310320330340
350360
370
370
380
380
10
20
30
40
50
60
70
80
90
100110120
13
0
14
0
15
0
10
20
30
405060708090100110
120130140150
150
150
160
170
180
190
200210
210
210
220
230
24
0
250
260
26
0
270
270
270
270
270
280
290
300
310
320330
340
350
360
370
370
380
380
10
20
30
40
50
60
70
70
70
80
90
100
11
0
12
0
130
140
150
160
170
170
170
180
190
200
200
200
210
210
210
220
220
220
230
230
230
240
250
260
270
280
290300
10
20304050
60
70
80
90
100110
120
130
140
150
160
160
160170180
190
200
210
220
230
230
230
240
240
240
250
250
250
260
270
10
20
30
40
50
60
70
80
90100
110120130140
150
160
170180
190
190
200
200
210
210
22
0
220
230
230
240
240
190
200
210
220
230
24
0
25
0
809010
0110120
13
0
14
0
150
160
170
180
190
200
210
220
220
230
230
1020304050
60
70
80
90
100
110
120
130
14
0
140
140
150
160170180
190
200
210
22
0
230
240
250
260
260
260
270
270
270
280290
490
50
0
510
520
53054
0
430
440
450
460
470
40
0
410
42
0
420
420
430
440
450
460
20
304050
60
70
350
5
0
100
2
0
0
25
0
30
0
500
IR
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GARDEN TRAIL
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PALOS VERDES DRIVE SOUTH
E-2 UPPER
DRA
I
N
1
D
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5
DISTANCE ALONG CROSS-SECTION (FEET)
350
400
450
500
550
600
650
700
750
800
850
350
400
450
500
550
600
650
700
750
800
850
-0+93 0+00 1+00 2+00 3+00 4+00 5+00 6+00 7+00 8+00 9+00 10+00 11+00 12+0012+07
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(
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350
400
450
500
550
600
650
700
750
800
350
400
450
500
550
600
650
700
750
800
-0+93 0+00 1+00 2+00 3+00 4+00 5+00 6+00 7+00 8+00 9+00 10+00 11+00 12+0012+07
350
400
450
500
550
600
650
700
750
350
400
450
500
550
600
650
700
750
-0+93 0+00 1+00 2+00 3+00 4+00 5+00 6+00 7+00 8+00 9+00 10+00 11+00 12+0012+07
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LEGEND
EXISTING GROUND SURFACE
ACTIVE BASAL RUPTURE SURFACE
REV. NO.
DATE OF ISSUE:
DRAWN BY:
DESIGNED BY:
CHECKED BY:
APPROVED BY:
DATE DESCRIPTION APPROVED BY
This drawing has not been published but rather has been prepared by Geo-Logic Associates, Inc. for use by the client named in the title block, solely in respect of the construction
operation, and maintenance of the facility named in the title block. Geo-Logic Associates, Inc. shall not be liable for the use of this drawing on any other facility or for any other purpose.
PROJECT NO.
DRAWING NO.
3150 Bristol Street Suite 210, Costa Mesa, California 92626
geo-logic.com│714.465.8240 30940 HAWTHORNE BLVD.
RANCHO PALOS VERDES,CA 90275
THE CITY OF
RANCHO PALOS VERDES
CITY OF RANCHO PALOS VERDES
PORTUGUESE BEND LANDSLIDE
MITIGATION
LOS ANGELES COUNTY, CA
SO23.1202PROPOSED E-2 UPPER HYDRAUGER PROFILE
9
PENDING PENDING PENDING PENDING
---- ------------
---- ------------
---- ------------
---- ------------
---- ------------
PENDING
AW
CM
PENDING
PENDING
KEY MAP (NOT TO SCALE)
200'100'0'200'400'
GROUNDWATER SURFACE
PROPOSED DRAIN
APPROXIMATE LIMITS OF PORTUGUESE BEND LANDSLIDE
(BASED ON LEIGHTON, 2000)
ARRAY "E-2U" DRAIN 1
ARRAY "E-2U" DRAIN 3
ARRAY "E-2U" DRAIN 5
DRAIN 1 COORDINATES TABLE
POINT STATION
N E Z COMMENT
1 UPDATE UPDATE UDPATE UPDATE BEGIN CURVE
2 UPDATE UPDATE UPDATE UPDATE END CURVE
3 UPDATE UPDATE UPDATE UPDATE
100'50'0'100'200'
100'50'0'100'200'
2.MINIMUM CURVE RADIUS 400 FEET.
1.FOR DRAINS 2 AND 4 COORDINATES, INTERPOLATE BETWEEN
ADJACENT DRAINS.
NOTES
100'50'0'100'200'
DRAIN 3 COORDINATES TABLE
POINT STATION
N E Z COMMENT
1 UPDATE UPDATE UDPATE UPDATE BEGIN CURVE
2 UPDATE UPDATE UPDATE UPDATE END CURVE
3 UPDATE UPDATE UPDATE UPDATE
DRAIN 5 COORDINATES TABLE
POINT STATION
N E Z COMMENT
1 UPDATE UPDATE UDPATE UPDATE BEGIN CURVE
2 UPDATE UPDATE UPDATE UPDATE END CURVE
3 UPDATE UPDATE UPDATE UPDATE
INTERIM WORK PRODUCT - NOT FOR CONSTRUCTION
PROPOSED INSTRUMENTATION LOCATION (DUAL
VERTICAL BOREHOLE)I-5
BRIC PROJECT LIMITS
LE
N
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=
1
,
2
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(
T
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)
GROUNDWATER TABLE
GROUND SURFACE
GROUNDWATER TABLE
GROUND SURFACE
GROUNDWATER TABLE
GROUND SURFACE
PROPOSED DISCHARGE LINE TO KLONDIKE CANYON
PRESERVE PROPERTY BOUNDARY
C-9
1
2
3
4R400 MINIMUM
DRILL RIG
WORKING
PLATFORM
1
SUMP TO CONTAIN DRILLING FLUIDS
AND CUTTINGS TO BE SIZED BY
DRILLING CONTRACTOR
ANGLE OF ATTACK PER PLAN BASED ON
LOCATION PER DESIGN ENGINEER
NEAT CEMENT GROUT ANNULAR SEAL
IN 12-INCH DIAM. BORE HOLE
8-INCH DIAM. LOW CARBON STEEL
CONDUCTOR CASING-DEPTH AND
LENGTH TO BE DETERMINED BEFORE
THE START OF DRILLING BY ASSESSING
THE MAXIMUM ANTICIPATED
PIEZOMETRIC PRESSURE
DRILL RIG
PENDING PENDING PENDING PENDING
---- ------------
---- ------------
---- ------------
---- ------------
---- ------------
PENDING
AW
CM
PENDING
PENDING
CITY OF RANCHO PALOS VERDES
PORTUGUESE BEND LANDSLIDE
MITIGATION
LOS ANGELES COUNTY, CA
SO23.1202HYDRAUGER DETAILS - DIRECTIONAL
10
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REV. NO.
DATE OF ISSUE:
DRAWN BY:
DESIGNED BY:
CHECKED BY:
APPROVED BY:
DATE DESCRIPTION APPROVED BY
This drawing has not been published but rather has been prepared by Geo-Logic Associates, Inc. for use by the client named in the title block, solely in respect of the construction
operation, and maintenance of the facility named in the title block. Geo-Logic Associates, Inc. shall not be liable for the use of this drawing on any other facility or for any other purpose.
PROJECT NO.
DRAWING NO.
3150 Bristol Street Suite 210, Costa Mesa, California 92626
geo-logic.com│714.465.8240 30940 HAWTHORNE BLVD.
RANCHO PALOS VERDES,CA 90275
THE CITY OF
RANCHO PALOS VERDES
4.CONTRACTOR TO ENSURE THAT THE PROFILE AND DIRECTION OF THE
HYDRAUGER CONFORMS TO THE DESIGN ON SHEET 5.
3.THE BOREHOLE FOR THE CONDUCTOR CASING SHALL BE A MINIMUM OF
12-INCHES IN DIAMETER. THE CONDUCTOR CASING SHALL CONSIST OF
8-INCH DIAMETER, SCHEDULE 40, LOW CARBON STEEL.
2.ANGLE OF ATTACK FOR THE HYDRAUGER IS PER PLAN SHEET 5 PER THE
ENGINEER. THE DEPTH AND LENGTH OF THE CONDUCTOR CASING IS TO BE
DETERMINED BEFORE THE START OF DRILLING OPERATIONS TO WITHSTAND
2 TIMES THE MAXIMUM ANTICIPATED HYDROSTATIC PRESSURE.
1.CONTRACTOR TO EXCAVATE SUMP TO CONTAIN DRILLING FLUIDS AND
CUTTINGS. CONTRACTOR TO CONSTRUCT WORKING PLATFORM TO
ACCOMMODATE DRILLING OPERATION. DIMENSIONS TO BE DETERMINED
BY DRILLING CONTRACTOR. WATER USED FOR DRILLING AND DEVELOPED
FROM THE DRILL SHALL BE DISPOSED OF BY THE CONTRACTOR WITHOUT
DAMAGE TO THE PROJECT OR THE ENVIRONMENT.
NOTES
SUMP AND
CONDUCTOR CASING
DETAIL
NTS
-
- -
TYPICAL HYDRAUGER
DIRECTIONAL
DETAIL
NTS
-
- -
INTERIM WORK PRODUCT - NOT FOR CONSTRUCTION
C-10
1
3
45
2
1
3
4
SUMP TO CONTAIN DRILLING FLUIDS
AND CUTTINGS TO BE SIZED BY
DRILLING CONTRACTOR
ANGLE OF ATTACK PER PLAN BASED ON
LOCATION PER DESIGN ENGINEER
NEAT CEMENT GROUT ANNULAR SEAL
IN 12-INCH DIAM. BORE HOLE
8-INCH DIAM. LOW CARBON STEEL
CONDUCTOR CASING-DEPTH AND
LENGTH TO BE DETERMINED BEFORE
THE START OF DRILLING BY ASSESSING
THE MAXIMUM ANTICIPATED
PIEZOMETRIC PRESSURE
2
PENDING PENDING PENDING PENDING
---- ------------
---- ------------
---- ------------
---- ------------
---- ------------
PENDING
AW
CM
PENDING
PENDING
CITY OF RANCHO PALOS VERDES
PORTUGUESE BEND LANDSLIDE
MITIGATION
LOS ANGELES COUNTY, CA
SO23.1202HYDRAUGER DETAILS - HORIZONTAL
11
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REV. NO.
DATE OF ISSUE:
DRAWN BY:
DESIGNED BY:
CHECKED BY:
APPROVED BY:
DATE DESCRIPTION APPROVED BY
This drawing has not been published but rather has been prepared by Geo-Logic Associates, Inc. for use by the client named in the title block, solely in respect of the construction
operation, and maintenance of the facility named in the title block. Geo-Logic Associates, Inc. shall not be liable for the use of this drawing on any other facility or for any other purpose.
PROJECT NO.
DRAWING NO.
3150 Bristol Street Suite 210, Costa Mesa, California 92626
geo-logic.com│714.465.8240 30940 HAWTHORNE BLVD.
RANCHO PALOS VERDES,CA 90275
THE CITY OF
RANCHO PALOS VERDES
5.CONTRACTOR TO ENSURE THAT THE PROFILE AND DIRECTION OF THE
HYDRAUGER CONFORMS TO THE DESIGN ON SHEET 11 THROUGH 17.
4.THE BOREHOLE FOR THE CONDUCTOR CASING SHALL BE A MINIMUM OF
12-INCHES IN DIAMETER. THE CONDUCTOR CASING SHALL CONSIST OF
8-INCH DIAMETER, SCHEDULE 40, LOW CARBON STEEL.
3.ANGLE OF ATTACK FOR THE HYDRAUGER IS PER PLAN SHEET 11 THROUGH
17 PER THE ENGINEER. THE DEPTH AND LENGTH OF THE CONDUCTOR
CASING IS TO BE DETERMINED BEFORE THE START OF DRILLING
OPERATIONS TO WITHSTAND 2 TIMES THE MAXIMUM ANTICIPATED
HYDROSTATIC PRESSURE.
2.SUBCONTRACTOR TO EXCAVATE AT SLOPE FACE, IF NECESSARY, AND
CONSTRUCT WORKING PLATFORM TO ACCOMMODATE DRILLING
OPERATION.
1.CONTRACTOR TO EXCAVATED SUMP TO CONTAIN DRILLING FLUIDS AND
CUTTING. DIMENSIONS TO BE DETERMINED BY DRILLING CONTRACTOR.
WATER USED FOR DRILLING AND DEVELOPED FROM THE DRILL SHALL BE
DISPOSED OF BY THE CONTRACTOR WITHOUT DAMAGE TO THE PROJECT OR
THE ENVIRONMENT.
NOTES
TYPICAL HYDRAUGER
HORIZONTAL
DETAIL
NTS
-
- -
SUMP AND
CONDUCTOR CASING
DETAIL
NTS
-
- -
INTERIM WORK PRODUCT - NOT FOR CONSTRUCTION
C-11
PENDING PENDING PENDING PENDING
---- ------------
---- ------------
---- ------------
---- ------------
---- ------------
PENDING
AW
CM
PENDING
PENDING
CITY OF RANCHO PALOS VERDES
PORTUGUESE BEND LANDSLIDE
MITIGATION
LOS ANGELES COUNTY, CA
SO23.1202HYDRAUGER DETAILS - DRILLING & PUMPING EQUIPMENT
12
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REV. NO.
DATE OF ISSUE:
DRAWN BY:
DESIGNED BY:
CHECKED BY:
APPROVED BY:
DATE DESCRIPTION APPROVED BY
This drawing has not been published but rather has been prepared by Geo-Logic Associates, Inc. for use by the client named in the title block, solely in respect of the construction
operation, and maintenance of the facility named in the title block. Geo-Logic Associates, Inc. shall not be liable for the use of this drawing on any other facility or for any other purpose.
PROJECT NO.
DRAWING NO.
3150 Bristol Street Suite 210, Costa Mesa, California 92626
geo-logic.com│714.465.8240 30940 HAWTHORNE BLVD.
RANCHO PALOS VERDES,CA 90275
THE CITY OF
RANCHO PALOS VERDES
INTERIM WORK PRODUCT - NOT FOR CONSTRUCTION
C-12
PENDING PENDING PENDING PENDING
---- ------------
---- ------------
---- ------------
---- ------------
---- ------------
PENDING
AW
CM
PENDING
PENDING
CITY OF RANCHO PALOS VERDES
PORTUGUESE BEND LANDSLIDE
MITIGATION
LOS ANGELES COUNTY, CA
SO23.1202HYDRAUGER DETAILS - INSTRUMENTATION
13
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REV. NO.
DATE OF ISSUE:
DRAWN BY:
DESIGNED BY:
CHECKED BY:
APPROVED BY:
DATE DESCRIPTION APPROVED BY
This drawing has not been published but rather has been prepared by Geo-Logic Associates, Inc. for use by the client named in the title block, solely in respect of the construction
operation, and maintenance of the facility named in the title block. Geo-Logic Associates, Inc. shall not be liable for the use of this drawing on any other facility or for any other purpose.
PROJECT NO.
DRAWING NO.
3150 Bristol Street Suite 210, Costa Mesa, California 92626
geo-logic.com│714.465.8240 30940 HAWTHORNE BLVD.
RANCHO PALOS VERDES,CA 90275
THE CITY OF
RANCHO PALOS VERDES
INTERIM WORK PRODUCT - NOT FOR CONSTRUCTION
C-13
Executive Summa!)l:
KCGHAD Plan Forward: Klondike Canyon Geologic Hazard Abatement District (emergency measures)
$1,275K-Temp 16" flex pipe in Klondike Canyon from PV South to head of Klondike Canyon Slide
$1,000K -Add 3 new water extraction wells at beach in Klondike & 1 observation well at Dauntless
.
""=-.---~ . . .
~~ ~-~ -~ :-... < : -... '
Step 1
Step2
Step3
Step4
$1,000K-Fill fissures at head of Klondike Slide & Remove dirt at interface of Portuguese PB & KC Slide in PBC
$900K -Create Storm Drain at the head of the Beach Club Slide that channels the water to the Klondike
Ste7 $1, 185K -4 additional tactical drain items to help mitigate slide (added by Steve C Feb 2024)
$5,435K -Total l
Stell! & Step 4
Current Klondike Canyon -Drain
Extends fr_om PV South to the Beach
Note: Calculations are estimates
'
••••• Step 1
••••• Step 4
Ste.Q 2
5 active Wells~ 400K Gal/day
210 days to remove 2023 rains (we have 2.5 now)
Step 3
Fill Fissures Head of Klondike Slide
Remove earth to relieve _eressure in PBC
PBC Town Hall/ Klondike Canyon Geologic Hazard Abatement District KCGHAD -Feb 20 2024
Ste.Q 5
Repair rain damage to
Klondike
48" storm drain
System damage and
3 other rainwater
related items
2
D-1
Portuguese Bend Landslide Complex
Approx location of: Portuguese Bend,
Klondike Canyon & the Beach Club Landslides
3d -View 2d -View
Weekly Updates from PB-Landslide Committee
RPV Landslide Complex Working Group I Rancho Palos Verdes, CA -Official Website (rpvca.gov).
Note: Calculations are estimates PBC Town Hall/ Klondike Canyon Geologic Hazard Abatement District KCGHAD -Feb 20 2024
~ .. -. _..._,. .. ~ . -.
1;-~_,._-~ :--:_· .... <·•,:'' -
, . ..,
D-2
®
Completed: Dauntless/Admirable/Exultant Temporary Water Main Alignment
Rev. 10.30.23Above-ground Underground(For illustrative purposes only: pipes not to scale, location approximate)E-1
®
In Progress: PBCA Clovetree Place Water Main Alignment
Rev. 3.6.24Above-ground Underground(For illustrative purposes only: pipes not to scale, location approximate)E-2
®
In Progress: Palos Verdes Drive South Water Main Alignment
Rev. 3.6.24Above-ground(For illustrative purposes only: pipes not to scale, location approximate)E-3
®
Planned: West Seaview Water Main Scope
Rev. 1.25.24Scope(For illustrative purposes only: pipes not to scale, location approximate)E-4
®
Planned: Narcissa Drive Water Main Scope
Rev. 3.6.24Scope(For illustrative purposes only: pipes not to scale, location approximate)Swing joint E-5
®
Planned: Vanderlip Trail Water Main Alignment
Rev. 3.6.24Above-ground(For illustrative purposes only: pipes not to scale, location approximate)Swing joint
To be installed first
E-6
®
Planned: Yacht Harbor Drive Main Alignment
Rev. 3.6.24(For illustrative purposes only: pipes not to scale, location approximate)Above-ground Scope E-7
From:Ara Mihranian
To:evelyn.booth@gmail.com; curtice.booth@gmail.com
Cc:LDG and Movement; CC; scummins@dcacivileng.com; andrew@elyusa.com
Subject:FW: Portuguese Bend Landslide Issue
Date:Thursday, March 14, 2024 9:34:22 PM
Attachments:KCGHAD Plan to mitigate 2023 2024 land movement 030924 - short execu summary.pdf
image001.png
Mr. and Mrs. Booth,
Thank you for taking the time to express your concerns and request funding assistance for the
work to be performed by the Klondike Canyon Landslide Abatement District (KCLAD). The Mayor
and City Councilmembers are in receipt of your email and similar emails from your neighbors,
and share your concerns.
As you may know, KCLAD was formed in 1981 as a Geologic Hazard Abatement District (GHAD),
the second in California (the first being the Abalone Cove Landslide Abatement District
((ACLAD)). KCLAD’s charter is to mitigate and remediate land movement using funds generated
by property owner assessments. Over the years, KCLAD has managed the landslide primarily
using dewatering wells. With the recent increased rate of movement, KCLAD has repaired and
installed dewatering wells, as well as developed a 5 step plan.
The City has been working closely with KCLAD’s Board of Directors to assist in the
implementation of these landslide mitigation measures. The City has also been assisting
KCLAD to seek financial assistance from governmental programs such as Disaster Recovery
Assistance and Congressional Project Grants. You may want to consider contacting your
County, State and Federal representatives as well stressing the importance for their support.
While this may take time, due to the urgent situation and the Local State of Emergency
proclaimed by the City Council on October 3, 2023, at the upcoming March 19 meeting, the City
Council will consider assisting KCLAD with in-kind services (engineering, etc.) and financial
assistance in the form of a loan.
The Staff Report will be published Friday afternoon, and can be accessed on the City’s website
at the following link:
City Meeting Video, Agenda and Minutes Portal | Rancho Palos Verdes, CA - Official
Website (rpvca.gov)
Your email will be attached to the March 19 Staff Report for the Council’s consideration.
Ara
F-1
You don't often get email from evelyn.booth@gmail.com. Learn why this is important
From: Evelyn Booth <evelyn.booth@gmail.com>
Sent: Tuesday, March 12, 2024 8:48 AM
To: John Cruikshank <John.Cruikshank@rpvca.gov>
Cc: Curtice Booth <curtice.booth@gmail.com>
Subject: Portuguese Bend Landslide Issue
EXTERNAL EMAIL: Do not click links or open any attachments unless you recognize the sender and know the
content is safe!!!.
Hello, Mayor Cruikshank, my name is Evelyn Booth.My husband, Curt, and myself are long-time residents of Portuguese Bend Beach Clubin Rancho Palos Verdes, CA. As you are likely aware, the beautiful community we livein, as well as our own personal home, have been greatly affected by the landslide thatcontinues to intensify in our area. Sadly, we are now experiencing almost weeklyevents on our property that are extremely costly and time consuming to repair. Theyinclude: broken concrete in multiple locations on the sides and front of our home;indoor and outdoor gates and entry doors that no longer operate correctly; warpedflooring; cracked drywall; fences that are moving and are at risk of falling over; and thelist goes on.
As taxpayers in this community, we need your help and we need it quickly. OurGeological Hazard Abatement District (Klondike Canyon Geologic Hazard AbatementDistrict) and Homeowners Association have worked tirelessly to put together a 5-stepplan of action (attached) to help mitigate the landslide that is putting all our homes atrisk. PLEASE TAKE IMMEDIATE ACTION.
Several homes in our area are already red tagged and many more are at risk. Asmentioned above, Klondike Canyon Geologic Hazard Abatement District (KCGHAD)has outlined and submitted the projects that need to be funded in order to save 107homes in the Klondike slide zone. We are in desperate need of your assistance as weare awaiting approval of these funds. The longer we wait, the more houses we willlose. We are asking for your prompt attention to this important issue so that we canensure the safety of the citizens and our homes in this area.
Your quick response to this matter and assistance in securing aid is greatlyappreciated!
F-2
Thank you,Evelyn & Curt Booth
F-3
From:Ara Mihranian
To:betty@helfordlv.com
Cc:LDG and Movement; CC; scummins@dcacivileng.com; andrew@elyusa.com
Subject:FW: KCGHAD Plan to Mitigate Land Movement in RPV and Portuguese Bend Club
Date:Thursday, March 14, 2024 9:58:08 PM
Attachments:KCGHAD Plan to mitigate 2023 2024 land movement 030924 - short execu summary.pdf
image001.png
Ms. Bradley,
Thank you for taking the time to express your concerns and request funding assistance for the
work to be performed by the Klondike Canyon Landslide Abatement District (KCLAD). The Mayor
and City Councilmembers are in receipt of your email and similar emails from your neighbors,
and they share your concerns.
As you may know, KCLAD was formed in 1981 as a Geologic Hazard Abatement District (GHAD),
the second in California (the first being the Abalone Cove Landslide Abatement District
((ACLAD)). KCLAD’s charter is to mitigate and remediate land movement using funds generated
by property owner assessments. Over the years, KCLAD has managed the landslide primarily
using dewatering wells. With the recent increased rate of movement, KCLAD has repaired and
installed dewatering wells, as well as developed a 5 step plan.
The City has been working closely with KCLAD’s Board of Directors to assist in the
implementation of these landslide mitigation measures. The City has also been assisting
KCLAD to seek financial assistance from governmental programs such as Disaster Recovery
Assistance and Congressional Project Grants. You may want to consider contacting your
County, State and Federal representatives as well stressing the importance for their support.
While this may take time, due to the urgent situation and the Local State of Emergency
proclaimed by the City Council on October 3, 2023, at the upcoming March 19 meeting, the City
Council will consider assisting KCLAD with in-kind services (engineering, etc.) and financial
assistance in the form of a loan.
The Staff Report will be published Friday afternoon, and can be accessed on the City’s website
at the following link:
City Meeting Video, Agenda and Minutes Portal | Rancho Palos Verdes, CA - Official
Website (rpvca.gov)
Your email will be attached to the March 19 Staff Report for the Council’s consideration.
Ara
F-4
You don't often get email from betty@helfordlv.com. Learn why this is important
From: Betty Helford <betty@helfordlv.com>
Sent: Monday, March 11, 2024 3:13 PM
To: John Cruikshank <John.Cruikshank@rpvca.gov>
Cc: Charlotte Bradley <charlottewbradley@outlook.com>; Betty Helford <betty@helfordlv.com>
Subject: KCGHAD Plan to Mitigate Land Movement in RPV and Portuguese Bend Club
EXTERNAL EMAIL: Do not click links or open any attachments unless you recognize the sender and know the
content is safe!!!.
Dear Mayor Cruikshank,
I am writing to you representing Betty Helford and the entire Helford family, long-time residents
of Portuguese Bend Club within Rancho Palos Verdes – currently owning 127 & 129 Spindrift,
former owners of 120 and 122 Spindrift. Before his death in August 2022, Irwin Helford along
with his wife, Betty, were very active in the community supporting the PV Performing Arts Center
and many local charities. Betty spends most of her time now at 127 Spindrift and is 91 years old
with limited mobility and round the clock care. While everyone in the community is of course
concerned with the acceleration of land movement, it would be extremely difficult for Mrs.
Helford to relocate at her age should immediate steps to improve the situation not be taken.
Our Geological Hazard Abatement District (Klondike Canyon Geologic Hazard Abatement
District) and PBC Homeowners Association have worked tirelessly to put together a 5-step plan
of action to help mitigate the landslide that is putting all our homes at risk. A quick summary of
the KCGHAD Plan Forward is attached.
Several homes in our area are already red tagged and many more are at risk. As mentioned
above, Klondike Canyon Geologic Hazard Abatement District (KCGHAD) has outlined and
submitted the projects that need to be funded in order to save 107 homes in the Klondike slide
zone. We are in desperate need of your assistance as we are awaiting approval of these funds.
F-5
The longer we wait, the more houses we may potentially lose.
We are asking for your prompt attention to this important issue so that we can ensure the safety
of the citizens and homes in our area. Your quick response to help secure the necessary aid to
fund the KCGHAD Plan Forward is greatly appreciated!
Thank you.
Charlotte Bradley
Executive Assistant to the Helford Family
Rancho Palos Verdes, California
F-6
From:Ara Mihranian
To:martha foster; CC
Cc:LDG and Movement
Subject:RE: PBC mitigation plan
Date:Thursday, March 14, 2024 10:01:33 PM
Hi Bill and Marty,
Thank you for taking the time to express your concerns and request funding assistance for the work to be performed
by the Klondike Canyon Landslide Abatement District (KCLAD). The Mayor and City Councilmembers are in
receipt of your email and similar emails from your neighbors, and they share your concerns.
As you may know, KCLAD was formed in 1981 as a Geologic Hazard Abatement District (GHAD), the second in
California (the first being the Abalone Cove Landslide Abatement District ((ACLAD)). KCLAD’s charter is to
mitigate and remediate land movement using funds generated by property owner assessments. Over the years,
KCLAD has managed the landslide primarily using dewatering wells. With the recent increased rate of movement,
KCLAD has repaired and installed dewatering wells, as well as developed a 5 step plan.
The City has been working closely with KCLAD’s Board of Directors to assist in the implementation of these
landslide mitigation measures. The City has also been assisting KCLAD to seek financial assistance from
governmental programs such as Disaster Recovery Assistance and Congressional Project Grants. You may want to
consider contacting your County, State and Federal representatives as well stressing the importance for their
support.
While this may take time, due to the urgent situation and the Local State of Emergency proclaimed by the City
Council on October 3, 2023, at the upcoming March 19 meeting, the City Council will consider assisting KCLAD
with in-kind services (engineering, etc.) and financial assistance in the form of a loan.
The Staff Report will be published Friday afternoon, and can be accessed on the City’s website at the following link:
https://www.rpvca.gov/772/City-Meeting-Video-and-Agendas
Your email will be attached to the March 19 Staff Report for the Council’s consideration.
Ara
-----Original Message-----
From: martha foster <martycrna@gmail.com>
Sent: Monday, March 11, 2024 1:46 PM
To: CC <CC@rpvca.gov>; Ara Mihranian <AraM@rpvca.gov>
Subject: PBC mitigation plan
[Some people who received this message don't often get email from martycrna@gmail.com. Learn why this is
important at https://aka.ms/LearnAboutSenderIdentification ]
EXTERNAL EMAIL: Do not click links or open any attachments unless you recognize the sender and know the
content is safe!!!.
Again, hoping the city approves the plan and takes steps to obtain the needed funding.
Thanks for your time.
Bill and Marty Foster
F-7
Sent from my iPad
F-8
1
Ramzi Awwad
Subject:FW: Thank you
‐‐‐‐‐Original Message‐‐‐‐‐
From: ANNE HAZARD <hazard44@aol.com>
Sent: Tuesday, March 5, 2024 7:39 AM
To: Ara Mihranian <AraM@rpvca.gov>
Subject: Thank you
[You don't oŌen get email from hazard44@aol.com. Learn why this is important at
hƩps://aka.ms/LearnAboutSenderIdenƟficaƟon ]
EXTERNAL EMAIL: Do not click links or open any aƩachments unless you recognize the sender and know the content is
safe!!!.
Dear Ara Mihranian City Manager,
I appreciate how busy the city is , working to slow the slide.(Thank You) That being said , I’d like to add my name to the
support list of the 5 step plan presented by the PBC beach club .. asking for FEMA help . I’m hoping you’ve read it, and
will help secure the funds quickly .
Thank you your Ɵme!
Anne Hazard
RPV resident ..never seen anything like this here .
Sent from my iPad
F-9
Some people who received this message don't often get email from tashhd@aol.com. Learn why this is important
From:Ara Mihranian
To:Tashia Hinchliffe; LDG and Movement
Cc:Erica Llanos; CC
Subject:RE: Question about landscape watering in Rancho Palos Verdes
Date:Thursday, March 14, 2024 9:14:39 PM
Attachments:image001.png
Hi Tashia,
Thank you for taking the time to attend last night’s Council meeting.
As you know, water is the culprit to the land movement. In October, after the City Council
proclaimed a Local State of Emergency, the City issued orders requesting residents in the
Landslide area to stop irrigating and to hand water plants on occasion to prevent over
saturation. This was not a mandate nor is the City penalizing residents for non-compliance. The
intent, again, was to minimize ground saturation.
You can look at it both ways when comparing hand watering to automated sprinklers.
For that reason, we are asking residents to use good judgment.
The ground is saturated from all the rain we received, so I suggest taking a break from watering.
You will save on your water bill and help prevent the ground from becoming overly saturated.
I hope this response helps, and if not, let me know if you have any follow up questions.
Ara
From: Tashia Hinchliffe <tashhd@aol.com>
Sent: Wednesday, March 13, 2024 4:15 PM
To: LDG and Movement <landmovement@rpvca.gov>
Cc: Erica Llanos <office@pbcbeachclub.com>
Subject: Question about landscape watering in Rancho Palos Verdes
F-10
EXTERNAL EMAIL: Do not click links or open any attachments unless you recognize the sender and know the
content is safe!!!.
Conflicting information and communication from the city and CalWater has been
circulating over the last year regarding homeowners' use of automatic or drip watering
systems and permissible days and time. Following receipt of the Mandatory Water
Restrictions Notice within the bounds of the “Landslide Complex”, it is unclear whether
we are still not allowed to use any automatic sprinklers or drip watering systems.
It seems illogical and impractical to only allow hand watering. That wastes everyone’s
time, does not control how much water is put into the ground, and can easily add more
water to the ground than if a homeowner were to set their automatic sprinklers and/or
drip sprinkler system to water for less than 10 minutes two or three times a week.
Depending on the topography and size, some yards are not feasible to hand water.
Allowing plants to die due to lack of water will also increase the fire risk in our area.
In addition, much of the soil around here is adobe clay. That is similar to the conditions in
the “soils” area of South Torrance. Since most of us have slab foundations, I thought that
it was advisable to keep the soil evenly moist around our homes to limit the amount of
cracks in our foundations and walls from the expansion and contraction of the soil.
Can you please further advise in detail regarding this matter? It has become a community
question and debate among our neighbors here at PBC.
-Tashia Hinchliffe, Yale MBA
RE/MAX Estate Properties, Global Director
Your Personal Real Estate Consultant
+1.310.383.7057
www.GlobalTashia.com
DRE#01245590
P.S. Please don’t keep me a secret to friends, family & colleagues about whom you
care.
F-11
From:Ara Mihranian
To:dave@linknilsen.com
Cc:LDG and Movement; CC
Subject:FW: Please help us mitigate the RPV landslides
Date:Thursday, March 14, 2024 10:05:19 PM
Attachments:KCGHAD Plan to mitigate 2023 2024 land movement 030924 - short execu summary.pdf
image001.png
Dave,
Thank you for taking the time to express your concerns and request funding assistance for the
work to be performed by the Klondike Canyon Landslide Abatement District (KCLAD). The Mayor
and City Councilmembers are in receipt of your email and similar emails from your neighbors,
and they share your concerns.
As you may know, KCLAD was formed in 1981 as a Geologic Hazard Abatement District (GHAD),
the second in California (the first being the Abalone Cove Landslide Abatement District
((ACLAD)). KCLAD’s charter is to mitigate and remediate land movement using funds generated
by property owner assessments. Over the years, KCLAD has managed the landslide primarily
using dewatering wells. With the recent increased rate of movement, KCLAD has repaired and
installed dewatering wells, as well as developed a 5 step plan.
The City has been working closely with KCLAD’s Board of Directors to assist in the
implementation of these landslide mitigation measures. The City has also been assisting
KCLAD to seek financial assistance from governmental programs such as Disaster Recovery
Assistance and Congressional Project Grants. You may want to consider contacting your
County, State and Federal representatives as well stressing the importance for their support.
While this may take time, due to the urgent situation and the Local State of Emergency
proclaimed by the City Council on October 3, 2023, at the upcoming March 19 meeting, the City
Council will consider assisting KCLAD with in-kind services (engineering, etc.) and financial
assistance in the form of a loan.
The Staff Report will be published Friday afternoon, and can be accessed on the City’s website
at the following link:
City Meeting Video, Agenda and Minutes Portal | Rancho Palos Verdes, CA - Official
Website (rpvca.gov)
Your email will be attached to the March 19 Staff Report for the Council’s consideration.
Ara
F-12
You don't often get email from dave@linknilsen.com. Learn why this is important
From: Dave Link <dave@linknilsen.com>
Sent: Monday, March 11, 2024 12:14 PM
To: John Cruikshank <John.Cruikshank@rpvca.gov>
Subject: Please help us mitigate the RPV landslides
EXTERNAL EMAIL: Do not click links or open any attachments unless you recognize the sender and know the
content is safe!!!.
Dear Mayor Cruikshank,
Thank you for your service to Rancho Palos Verdes.
I know it’s largely a thankless task that pulls you away from your personal and family
obligations.
I’d like to add my voice the other residents of Portuguese Bend Beach Club and ask you to
support the efforts of the Geological Hazard Abatement District (Klondike Canyon
Geologic Hazard Abatement District) and Homeowners Association who have put
together the attached 5-step plan of action to help mitigate the landslide that is putting all
our homes at risk.
As I know you are very much aware, several homes in our area are already red tagged and
many more are at risk. As mentioned above, Klondike Canyon Geologic Hazard
Abatement District (KCGHAD) has outlined and submitted the projects that need to be
funded in order to save 107 homes in the Klondike slide zone. We are in desperate need of
your assistance as we are awaiting approval of these funds. The longer we wait, the more
houses we will lose. We are asking for your prompt attention to this important issue so
that we can ensure the safety of the citizens and our homes in this area.
Your quick response to this matter and assistance in receiving aid is greatly appreciated!
F-13
Once again, thank you for your service to our city and your efforts to date to mitigate the
landslide damage.
Dave Link
113 Spindrift Drive
Rancho Palos Verdes CA. 90275
Office: (626) 445-3414
Cell: (626) 945-0213
Email: Dave@linknilsen.com
F-14
From:Ara Mihranian
To:lisa.h.link@gmail.com
Cc:LDG and Movement; CC; scummins@dcacivileng.com; andrew@elyusa.com
Subject:FW: FEMA funding for PBC/Klondike
Date:Thursday, March 14, 2024 10:09:37 PM
Attachments:KCGHAD Plan to mitigate 2023 2024 land movement 030924 - short execu summary.pdf
image001.png
Lisa,
Thank you for taking the time to express your concerns and request funding assistance for the
work to be performed by the Klondike Canyon Landslide Abatement District (KCLAD). The Mayor
and City Councilmembers are in receipt of your email and similar emails from your neighbors,
and they share your concerns.
As you may know, KCLAD was formed in 1981 as a Geologic Hazard Abatement District (GHAD),
the second in California (the first being the Abalone Cove Landslide Abatement District
((ACLAD)). KCLAD’s charter is to mitigate and remediate land movement using funds generated
by property owner assessments. Over the years, KCLAD has managed the landslide primarily
using dewatering wells. With the recent increased rate of movement, KCLAD has repaired and
installed dewatering wells, as well as developed a 5 step plan.
The City has been working closely with KCLAD’s Board of Directors to assist in the
implementation of these landslide mitigation measures. The City has also been assisting
KCLAD to seek financial assistance from governmental programs such as Disaster Recovery
Assistance and Congressional Project Grants. You may want to consider contacting your
County, State and Federal representatives as well stressing the importance for their support.
While this may take time, due to the urgent situation and the Local State of Emergency
proclaimed by the City Council on October 3, 2023, at the upcoming March 19 meeting, the City
Council will consider assisting KCLAD with in-kind services (engineering, etc.) and financial
assistance in the form of a loan.
The Staff Report will be published Friday afternoon, and can be accessed on the City’s website
at the following link:
City Meeting Video, Agenda and Minutes Portal | Rancho Palos Verdes, CA - Official
Website (rpvca.gov)
Your email will be attached to the March 19 Staff Report for the Council’s consideration.
Ara
F-15
From: Lisa Link <lisa.h.link@gmail.com>
Sent: Sunday, March 10, 2024 4:33:31 PM
To: John Cruikshank <John.Cruikshank@rpvca.gov>
Subject: FEMA funding for PBC/Klondike
You don't often get email from lisa.h.link@gmail.com. Learn why this is important
EXTERNAL EMAIL: Do not click links or open any attachments unless you recognize the sender and know the
content is safe!!!.
Dear Mayor Cruikshank,
Before I ask for a few minutes of your time, I want to thank you for your service tothe City of Rancho Palos Verdes. As a former elected public official myself, Iunderstand and appreciate the time and resources you spend on your constituents’
behalf!
I am a homeowner in the Portuguese Bend Beach Club (PBC) in Rancho Palos Verdes.I have family members who have lived in PBC since the 1970s, and currently both my
brother and a cousin own homes in this special community. We all are extremelyconcerned, and frankly, scared, about what is happening to our homes and greatercommunity.
As you know and as has been reported in the Los Angeles Times and beyond, our
particular area of the Palos Verdes Peninsula has experienced unprecedented landmovement. Several homes in our vicinity are already red tagged and many more are
at risk of significant damage. Our doors no longer close quite right, the pavementcontinues to buckle and new cracks are noticeable weekly, and there are homes thathave suffered much more damage. The main road that provides access to my elderly
parents appears to shift daily, causing frequent repairs to ensure the safety of themany cars that use this thoroughfare connecting the cities on the Peninsula.
It is not too late to take action to mitigate the harm caused by the land
movement. Attached is a 5-step plan of action developed and submitted by the
F-16
Klondike Canyon Geologic Hazard Abatement District (KCGHAD) to address themovement that is putting all our homes at risk. But the cost of implementing this
action plan is exorbitant and beyond the financial means of individual homeowners. We desperately need the government’s financial help to avoid imminent disaster in this
area.
Typically, FEMA has provided financial assistance to homeowners AFTER they have
been adversely impacted by disasters. Here, we know we have a disaster in progress-- doesn't it make sense to get FEMA assistance NOW to try to STOP the disaster from
getting worse? Please help us obtain disaster relief as soon as possible when it can stillbe prevented, instead of after the fact when it is too late.
HOW YOU CAN HELP: Please continue to advocate on our behalf to obtain governmentfunding to at least save the 107 homes in the Klondike area. The longer we wait to get
funding, the more homes we will lose.
Thank you in advance for your prompt attention to this important issue and youradvocacy on your constituents' behalf so that we can all ensure the safety of the
citizens and homes in this area.
Lisa Hinchliffe Link
113 Spindrift Drive, Rancho Palos Verdes, CA 90275
F-17
From:Ara Mihranian
To:robinpierson7@gmail.com
Cc:LDG and Movement; CC
Subject:FW: STOP THE LANDSLIDE - WE NEED YOUR HELP!
Date:Thursday, March 14, 2024 10:13:40 PM
Attachments:KCGHAD Plan to mitigate 2023 2024 land movement 030924 - short execu summary.pdf
image001.png
Robin,
Thank you for taking the time to express your concerns and request funding assistance for the
work to be performed by the Klondike Canyon Landslide Abatement District (KCLAD). The Mayor
and City Councilmembers are in receipt of your email and similar emails from your neighbors,
and they share your concerns.
As you may know, KCLAD was formed in 1981 as a Geologic Hazard Abatement District (GHAD),
the second in California (the first being the Abalone Cove Landslide Abatement District
((ACLAD)). KCLAD’s charter is to mitigate and remediate land movement using funds generated
by property owner assessments. Over the years, KCLAD has managed the landslide primarily
using dewatering wells. With the recent increased rate of movement, KCLAD has repaired and
installed dewatering wells, as well as developed a 5 step plan.
The City has been working closely with KCLAD’s Board of Directors to assist in the
implementation of these landslide mitigation measures. The City has also been assisting
KCLAD to seek financial assistance from governmental programs such as Disaster Recovery
Assistance and Congressional Project Grants. You may want to consider contacting your
County, State and Federal representatives as well stressing the importance for their support.
While this may take time, due to the urgent situation and the Local State of Emergency
proclaimed by the City Council on October 3, 2023, at the upcoming March 19 meeting, the City
Council will consider assisting KCLAD with in-kind services (engineering, etc.) and financial
assistance in the form of a loan.
The Staff Report will be published Friday afternoon, and can be accessed on the City’s website
at the following link:
City Meeting Video, Agenda and Minutes Portal | Rancho Palos Verdes, CA - Official
Website (rpvca.gov)
Your email will be attached to the March 19 Staff Report for the Council’s consideration.
Ara
F-18
From: Robin Pierson <robinpierson7@gmail.com>
Sent: Saturday, March 9, 2024 6:54 PM
To: John Cruikshank <John.Cruikshank@rpvca.gov>
Subject: STOP THE LANDSLIDE - WE NEED YOUR HELP!
You don't often get email from robinpierson7@gmail.com. Learn why this is important
EXTERNAL EMAIL: Do not click links or open any attachments unless you recognize the sender and know the
content is safe!!!.
Dear Mayor Cruikshank,
Nearly 40 years ago my parents, Don and Dorothy Pierson purchased a humble
cottage in the Portuguese Bend Club in Rancho Palos Verdes. My father grew up in
San Pedro, starting one of the first trash pickup services in the area. It had always
been his dream to live at the beach.
Though well into their golden years, hard work and creativity were in my parents’
DNA. For years, they worked to make that simple cottage a magical gathering spot for
our family. Using Palos Verdes stone inside and out, they created a whimsical, one-of-
a-kind home where they welcomed their children and grandchildren.
With the recent accelerated land movement, the stonework they painstakingly
cemented into place is being ripped apart. Unless the movement is mitigated, the
house Don and Dot hoped would welcome their descendants for generations, could
crumble.
My neighbors’ homes face the same fate. Several homes in our area are already red
tagged and many more are threatened. However, our Geological Hazard Abatement
District (Klondike Canyon Geologic Hazard Abatement District) and Homeowners
Association have worked tirelessly to put together a 5-step plan of action to help
mitigate the landslide that is putting all our homes at risk. That plan is attached.
We are in desperate need of your assistance as we are awaiting approval of the funds
needed to save the homes in the Klondike slide zone. The longer we wait, the more
houses we will lose. We are asking for your prompt attention to ensure the safety of
F-19
citizens who live and recreate in the area and to avoid catastrophic property losses.
Your quick response to this matter and assistance in receiving aid is greatly
appreciated!
Thank you,
Robin Pierson
131 Yacht Harbor Drive
Rancho Palos Verdes, CA 90275
F-20
From:Ara Mihranian
To:fjsmalling@aol.com
Cc:LDG and Movement; CC; scummins@dcacivileng.com; andrew@elyusa.com
Subject:RE: Landslide abatement action needed
Date:Thursday, March 14, 2024 9:04:37 PM
Attachments:image001.png
Mr. and Mrs. Smalling,
Thank you for taking the time to express your concerns and request funding assistance for the
work to be performed by the Klondike Canyon Landslide Abatement District (KCLAD). The City is
in receipt of your email and similar emails from your neighbors.
As you may know, KCLAD was formed in 1981 as a Geologic Hazard Abatement District (GHAD),
the second in California (the first being the Abalone Cove Landslide Abatement District
((ACLAD)). KCLAD’s charter is to mitigate and remediate land movement using funds generated
by property owner assessments. Over the years, KCLAD has managed the landslide primarily
using dewatering wells. With the recent increased rate of movement, KCLAD has repaired and
installed dewatering wells, as well as developed a 5 step plan.
The City has been working closely with KCLAD’s Board of Directors to assist in the
implementation of these landslide mitigation measures. The City has also been assisting
KCLAD to seek financial assistance from governmental programs such as Disaster Recovery
Assistance and Congressional Project Grants.
While this may take time, due to the urgent situation and the Local State of Emergency
proclaimed by the City Council on October 3, 2023, at the upcoming March 19 meeting, the City
Council will consider assisting KCLAD with in-kind services (engineering, etc.) and financial
assistance in the form of a loan.
The Staff Report will be published Friday afternoon, and can be accessed on the City’s website
at the following link:
City Meeting Video, Agenda and Minutes Portal | Rancho Palos Verdes, CA - Official
Website (rpvca.gov)
Ara
F-21
You don't often get email from fjsmalling@aol.com. Learn why this is important
From: fjsmalling@aol.com <fjsmalling@aol.com>
Sent: Thursday, March 14, 2024 1:40 PM
To: Ara Mihranian <AraM@rpvca.gov>
Subject: Landslide abatement action needed
EXTERNAL EMAIL: Do not click links or open any attachments unless you recognize the sender and know the
content is safe!!!.
Dear Ara Mihranian,
Rancho Palos Verdes is in desperate need of funds to help slow/stop the land movement due to the extreme rains we
received. Several homes are already red tagged in my neighborhood. Klondike Canyon Geological Hazard Abatement
District (KCGHAD) has projects ready to be funded to save the 107 homes in the Klondike slide zone. We are just
waiting on the money. The longer we wait, the more houses we will lose. This is truly an emergency.
Thank you for your prompt attention to this important issue.
Sincerely,
Julie & Fred Smalling
4232 Exultant Dr.
Rancho Palos Verdes, CA 90275
fjsmalling@aol.com
F-22
From:Ara Mihranian
To:ckstevenson67@gmail.com
Cc:LDG and Movement; CC; scummins@dcacivileng.com; andrew@elyusa.com
Subject:FW: PBC Landslide
Date:Thursday, March 14, 2024 9:49:04 PM
Attachments:image001.png
Ms. Stevenson,
Thank you for taking the time to express your concerns and request funding assistance for the
work to be performed by the Klondike Canyon Landslide Abatement District (KCLAD). The Mayor
and City Councilmembers are in receipt of your email and similar emails from your neighbors,
and they share your concerns.
As you may know, KCLAD was formed in 1981 as a Geologic Hazard Abatement District (GHAD),
the second in California (the first being the Abalone Cove Landslide Abatement District
((ACLAD)). KCLAD’s charter is to mitigate and remediate land movement using funds generated
by property owner assessments. Over the years, KCLAD has managed the landslide primarily
using dewatering wells. With the recent increased rate of movement, KCLAD has repaired and
installed dewatering wells, as well as developed a 5 step plan.
The City has been working closely with KCLAD’s Board of Directors to assist in the
implementation of these landslide mitigation measures. The City has also been assisting
KCLAD to seek financial assistance from governmental programs such as Disaster Recovery
Assistance and Congressional Project Grants. You may want to consider contacting your
County, State and Federal representatives as well stressing the importance for their support.
While this may take time, due to the urgent situation and the Local State of Emergency
proclaimed by the City Council on October 3, 2023, at the upcoming March 19 meeting, the City
Council will consider assisting KCLAD with in-kind services (engineering, etc.) and financial
assistance in the form of a loan.
The Staff Report will be published Friday afternoon, and can be accessed on the City’s website
at the following link:
City Meeting Video, Agenda and Minutes Portal | Rancho Palos Verdes, CA - Official Website
(rpvca.gov)
Your email will be attached to the March 19 Staff Report for the Council’s consideration.
Ara
F-23
From: Carole Stevenson <ckstevenson67@gmail.com>
Sent: Tuesday, March 12, 2024 12:18:11 PM
To: John Cruikshank <John.Cruikshank@rpvca.gov>
Subject: PBC Landslide
You don't often get email from ckstevenson67@gmail.com. Learn why this is important
EXTERNAL EMAIL: Do not click links or open any attachments unless you recognize the sender and know the
content is safe!!!.
Dear Mayor Cruikshank,
As a resident of the Portuguese Bend Club, I am writing to ask for your intervention to
secure the funds needed to save our community. Obviously, you are aware of the
tremendous problems we have faced due to the heavy rains of 2023 and 2024. The
landslides have affected us all in a most disastrous way.
Our community engineers, with the help of numerous others, have researched and
developed a 5 point plan to save our homes and our community. The plan has been
discussed in depth with the residents here and we are in total support of it.
Thus, I am asking you to help us fund the project. Your love of our community is very clear
so I feel confident that you have our backs and will do what you can to support this
funding.
Thank you.
Carole Stevenson Moeller
47 Seawall Rd., Rancho Palos Verdes, Ca
F-24
F-25
From:Ara Mihranian
To:Carole Stevenson
Cc:LDG and Movement; CC
Subject:RE: RPV Landslides
Date:Thursday, March 14, 2024 10:12:34 PM
Attachments:image002.png
image003.png
Carole,
Thank you for taking the time to express your concerns and request funding assistance for the
work to be performed by the Klondike Canyon Landslide Abatement District (KCLAD). The Mayor
and City Councilmembers are in receipt of your email and similar emails from your neighbors,
and they share your concerns.
As you may know, KCLAD was formed in 1981 as a Geologic Hazard Abatement District (GHAD),
the second in California (the first being the Abalone Cove Landslide Abatement District
((ACLAD)). KCLAD’s charter is to mitigate and remediate land movement using funds generated
by property owner assessments. Over the years, KCLAD has managed the landslide primarily
using dewatering wells. With the recent increased rate of movement, KCLAD has repaired and
installed dewatering wells, as well as developed a 5 step plan.
The City has been working closely with KCLAD’s Board of Directors to assist in the
implementation of these landslide mitigation measures. The City has also been assisting
KCLAD to seek financial assistance from governmental programs such as Disaster Recovery
Assistance and Congressional Project Grants. You may want to consider contacting your
County, State and Federal representatives as well stressing the importance for their support.
While this may take time, due to the urgent situation and the Local State of Emergency
proclaimed by the City Council on October 3, 2023, at the upcoming March 19 meeting, the City
Council will consider assisting KCLAD with in-kind services (engineering, etc.) and financial
assistance in the form of a loan.
The Staff Report will be published Friday afternoon, and can be accessed on the City’s website
at the following link:
City Meeting Video, Agenda and Minutes Portal | Rancho Palos Verdes, CA - Official
Website (rpvca.gov)
Your email will be attached to the March 19 Staff Report for the Council’s consideration.
Ara
F-26
From: David Bradley <david.bradley@rpvca.gov>
Sent: Saturday, March 9, 2024 8:10 AM
To: Carole Stevenson <carolekingstevenson@gmail.com>
Cc: Ara Mihranian <AraM@rpvca.gov>; John Cruikshank <John.Cruikshank@rpvca.gov>; Ramzi Awwad
<rawwad@rpvca.gov>
Subject: RE: RPV Landslides
Carole,
We are doing everything possible to identify outside funding sources to help stabilize our
unprecedented Land Flow movement in the Ancient Land Flow complex. We are also trying to
ensure that we have identified effective technical solutions to help remove, and prevent
recharging, of the slip-plane water table. I know it appears that we are not making fast enough
progress, but we are doing everything possible within the Laws and Regulations of the State of
California. We are here to help support KCLAD and will continue to help you identify potential
grant opportunities for additional resources. This is in my mind the #1 issue / priority for the city
and for the Peninsula in general.
Regards,
Dave
David Bradley
Councilmember - Rancho Palos Verdes
david.bradley@rpvca.gov
(310) 487-2418 Cell Phone
City of Rancho Palos Verdes
30940 Hawthorne Blvd.
Rancho Palos Verdes, CA 90275
F-27
You don't often get email from carolekingstevenson@gmail.com. Learn why this is important
From: Carole Stevenson <carolekingstevenson@gmail.com>
Sent: Tuesday, March 5, 2024 3:07 PM
To: David Bradley <david.bradley@rpvca.gov>
Subject: RPV Landslides
EXTERNAL EMAIL: Do not click links or open any attachments unless you recognize the sender and know the
content is safe!!!.
Dear Mr. Bradley,
As a resident of RPB I am asking for your support to obtain funds to help those of us who
have been affected by the recent land movement due to the extreme rains in 2023 and
2024.
RPB is in desperate need of funds to help slow and stop the land movement due to the
extreme and unprecedented rains from last year and into 2024.
Our home has been damaged and several homes have already been red tagged. Our
community has a very specific 5 point plan to address these issues and what we need
now is the money to move forward. The Klondike Canyon Geological Hazard Abatement
District has projects ready to be funded to save the 107 homes in the Klondike slide zone.
Please help us and make this request a priority.
Thank you.
Carole Stevenson Moeller
F-28
From:Ara Mihranian
To:Alex Willens
Cc:LDG and Movement; CC
Subject:RE: Klondike Canyon Geological Hazard Abatement District (KCGHAD) - 5 STEP PLAN HAS MY FULL SUPPORT
Date:Thursday, March 14, 2024 10:11:02 PM
Attachments:image001.png
Hi Alex,
Thank you for taking the time to express your concerns and request funding assistance for the
work to be performed by the Klondike Canyon Landslide Abatement District (KCLAD). The Mayor
and City Councilmembers are in receipt of your email and similar emails from your neighbors,
and they share your concerns.
As you may know, KCLAD was formed in 1981 as a Geologic Hazard Abatement District (GHAD),
the second in California (the first being the Abalone Cove Landslide Abatement District
((ACLAD)). KCLAD’s charter is to mitigate and remediate land movement using funds generated
by property owner assessments. Over the years, KCLAD has managed the landslide primarily
using dewatering wells. With the recent increased rate of movement, KCLAD has repaired and
installed dewatering wells, as well as developed a 5 step plan.
The City has been working closely with KCLAD’s Board of Directors to assist in the
implementation of these landslide mitigation measures. The City has also been assisting
KCLAD to seek financial assistance from governmental programs such as Disaster Recovery
Assistance and Congressional Project Grants. You may want to consider contacting your
County, State and Federal representatives as well stressing the importance for their support.
While this may take time, due to the urgent situation and the Local State of Emergency
proclaimed by the City Council on October 3, 2023, at the upcoming March 19 meeting, the City
Council will consider assisting KCLAD with in-kind services (engineering, etc.) and financial
assistance in the form of a loan.
The Staff Report will be published Friday afternoon, and can be accessed on the City’s website
at the following link:
City Meeting Video, Agenda and Minutes Portal | Rancho Palos Verdes, CA - Official
Website (rpvca.gov)
Your email will be attached to the March 19 Staff Report for the Council’s consideration.
Ara
F-29
You don't often get email from wwillens@gmail.com. Learn why this is important
From: Alex Willens <wwillens@gmail.com>
Sent: Friday, March 8, 2024 2:15 PM
To: Ara Mihranian <AraM@rpvca.gov>
Subject: Klondike Canyon Geological Hazard Abatement District (KCGHAD) - 5 STEP PLAN HAS MY
FULL SUPPORT
EXTERNAL EMAIL: Do not click links or open any attachments unless you recognize the sender and know the
content is safe!!!.
Dear City Manager Mihranian:
My family owns the home at 130 Spindrift Drive, Rancho Palos Verdes, CA 90275.
As I am sure you are aware, Klondike Canyon Geological Hazard Abatement District
(KCGHAD) has A 5-STEP PLAN ready to be funded to save the 107 homes in the Klondike
slide zone. KCGHAD is just waiting on the money needed to complete those projects.
The longer we wait, the more houses we will lose. Please help us secure FEMA funding
ASAP.
These plans are not aspirational, or over engineered, they are well thought out by people
with boots on the ground. They will work!
My family has lived in this area for close to 70 years. My father was raised in RPV. My
brother and I were raised here in RPV, and visited my grandparents at 130 Spindrift every
day after school.
My 95- year old grandmother now lives in this home. She will not leave for an assisted
F-30
care community because this is where the memories she still has live.
This area isn't just a pretty area or a nice drive, it is where people have put down roots.
This area is where families have found each other, loved each other and have been there
for each other.
Please aid us in gaining access to any state, federal or other government funds to aid in
protecting this beloved area and community.
Thank you for your prompt attention to this important issue.
Feel free to call or email me anytime at (310) 941-5718 or wwillens@gmail.com.
Sincerely,
William “Alex” Willens
Attorney at Law
F-31