HomeMy WebLinkAboutLeighton & Associates Inc; 1992-02-03;0 * *
FEBRUARY 3, 1992
TO: CITY MANAGER
FROM: Planning Director
PROPOSED ADDENDUM TO LEIGHTON AND ASSOCIATES, INC. CONTRACT
The Planning Department requests that the sum of $10,000 be added to the contract of Leight
and Associates, Inc. for updating the geotechnical base of the Safety Element of the General Pk
The additional funds are necessaIy to upgrade the City's digital files from which the digital slo
analysis for this project will be generated. The attached scope of work, describes in detail, wl
products the City will receive for this sum.
The Planning Department is currently working on the update of geotechnical studies as part oft
technical base for the General Plan update. As part of the update of the Safety Element, haza
analysis mapping is being prepared. A key layer of the hazard analysis mapping portion of t
Geotechnical Studies and Analysis project, is a Citywide slope analysis map. Originally, t
Planning Department anticipated that the digital files prepared for the Master Drainage study COL
be used as the digital basis for this project, including generating the digital slope analysis m:
After detailed review of the files by our consultants, Leighton and Associates, Inc. and David Eva
and Associates (DEA), it was determined that digital slope analysis could not be performed usi
the City's existing digital files, as the necessary attribute, which permits the files PO be read in
dimension, was not properly coded. In our current fiscal year (1991-92) budget, funds we
allocated for initiating work on the Geographic Information System (GIS) data base. The initial G
work is to include digitizing mapping and studies to be loaded into the GIs. Ultimately, t
geotechnical studies will comprise several data layers of the GIs.
As noted above, funds for this purpose have been allocated in the Planning Departments budget i
this fiscal year (1991-92). As the slope analysis is a key layer of the hazard analysis mappi
portion of the Geotechnical Studies and Analysis project, and the digital files as upgraded will
a useful data layer of the GIs, the Planning Department recommends that the additional work I
the digital files be done. If appropriate, please sign both original amended contracts and forwa
to the Acting City Attorney for signature. Thank you for your assistance in this matter.
c
C: Dennis Turner
Bobbie Hoder
Erin Letsch
Attachments: Amended Agreement for Leighton and Associates
Addendum to Leighton and Associates Scope of Work
Tw:
(20.4
Attachment “A” Adendi a e
SCOPE OF WORK ADENDUM #1
LEIGHTON AND ASSOCIATES
TASK 1 -
Contractor will conduct edit procedures to identify those mislabeled contours which prevent t
development of slope polygon maps using ARC/Info TIN software.
TASK2 - UPDATE MISLABELED CONTOURS
From the results of Task 1, the CONTRACTOR will update the values of the mislabeled contc
features with correct elevation information. This update task will be extensive enough so that slc
polygon maps can be generated as per the procedures specified in the original Leighton & Assc
Inc. contract.
TASK 3 -
After the update procedures have been performed, and slope polygon coverages creatc
CONTRACTOR will produce edit plots consisting of slope polygons, contour lines, street names a
spot elevations. These edit plots will be sent to the City for review and correction of anomalo
slope units. The edited plots will be returned to CONTRACTOR for final update of the digital f2
and generation of final plots.
TASK 4 -
CONTRACTOR will develop in memo format a general description of the procedures used
perform Tasks 1 and 2.
This memo will take the form of an outline of sequential steps taken, with specific references bei
made to AML’s used, and the sequence of Arc/Info and TIN commands (with arguments a
tolerances used) used in the process.
TASK 5 - DELlVERABLE PRODUCE
Products to be delivered to the City of Carlsbad will be as follows, with all digital products:
On DDS Format tape
Arc Export Files
23 Slope polygon coverages
23 Contour line coverages
23 Spot elevation point coverages
23 TIN files
23 LATTICEfiles
All AML’s generated for the project
23
23
EVALUATE DWG FILES FOR MISLABELED CONTOURS
REVIEW AND UPDATE GENERATED SLOPE DATA
DOCUMENTATION OF PROCEDURES USED
Autocad DWG files of deliverable plots
Plots of slope polygons, contour lines, street names, spot elevations, registration ties ai
border information Tu
Leigh.\
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AGREEMENT
THIS AGREEMENT, made and entered into as of the 2'd sz. day of
WJ , 1991, by and between the CITY OF CARLSBAD, a municipal
corporation, hereinafter referred to as "CITY", and LEIGHTON AND ASSOCIATES,
INC., hereinafier referred to as "CONSULTANT".
RECITALS
CITY requires the services of a Geotechnical and Environmental Engineering
consultant to assist staff in revisions to the geotechnical portion of the Safety
Element of the General Plan; and CONSULTANT possesses the necessary skills and
qualifications to provide the services required by the CITY;
NOW, THEREFORE, in consideration of these recitals and the mutual
covenants contained herein, CITY and CONSULTANT agree as follows:
1. CONSULTANT'S OBLIGATIONS
The Consultant shall assist CITY staff in revisions to the geotechnical portions
of the Zoning Ordinance and the Safety Element. Specific tasks shall include all
items as outlined in Attachment A, attached and made a part hereof.
2. CITY OBLIGATIONS
The CITY shall make payment to the consultant as provided in paragraph 6,
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AMENDED AGREEMENT FOR
GEOTECKNICAL STUDIES AND ANALYSIS
THIS AGREEMENT, made and entered into as of 'the btb
day of Gbvua fL4 , 1992, by and between the CITY
CARLSBAD, a municipal corporation, hereinafter referred to
ItCITYt1, and LEIGHTON AND ASSOCIATES, INC., hereinafter referred
as llCONSULTANTtl, shall serve to amend the previous contract dat
September 26, 1991, attached hereto.
All provisions of the original contract shall remain
effect, except that Paragraph 4, Fees to be Paid to Consultan
shall be amended by the addition of $10,000.00 to the contra
amount. Paragraph 4 shall read:
##The total shall not exceed the fee payable according
Paragraph 6, #'Payment of Fees,## and shall be $103,431.00.ii
IN WITNESS WHEREOF we have hereunto set our hands and seals.
LEIGHTON AND ASSOCIATES, INC. CITY OF CARLSBAD
President
APPROVED AS TO FORM: ATTESTED :
_-1
RONALD R. BALL J 6 .gas MICHAEL J. HOLZMILLER Acting City Attorney Planning Director
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"Payment of Fees" of the Agreement.
The CITY shall make available to the consultant all currently held plans,
maps and background information.
The CITY shall coordinate all meetings, including CITY hearings and
associated noticing.
The CITY shall provide the consultant with any goals, policies, standards,
recommendations, or any other pertinent information deemed necessary for
inclusion in the geotechnical portions of the Zoning Ordinance and the Safety
Element.
3. PROGRESS AND COMPLETION
The work under this contract will begin within five (5) days after receipt of
notification to proceed by the CITY and be completed as agreed upon by both
parties following the establishment of a schedule for completion of all tasks as
outlined in Attachment A. The Planning Director will provide CONSULTANT with
a Notice of Completion following the satisfactory completion of all tasks.
Extensions of time may be granted if requested by the CONSULTANT and agreed
to in writing by the Planning Director. The Planning Director will give allowance
for documented and substantiated unforeseeable and unavoidable delays not caused
by a lack of foresight on the part of the CONSULTANT, or delays caused by CITY
inaction or other agencies' lack of timely action.
4. FEES TO BE PAID TO CONSULTANT
The total shall not exceed the fee payable according to Paragraph 6,
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00 . No other compensation for "Payment of Fees," and shall be $ 43, 431
services will be allowed except those items covered by supplemental agreements per
Paragraph 8, Thanges in Work."
5. DURATION OF CONTRACX
#
This agreement shall extend for a period of six (6) months from date thereof.
The contract may be extended for one (1) additional one (1) year periods or parts
thereof, based upon satisfactory performance and the CITY'S needs.
6. PAYMENT OF FEES
Payment of fees shall be made within thirty (30) days after receipt and
approval of a monthly invoice submitted by CONSULTANT to CITY. The
CONSULTANT shall be paid for up to ninety percent of the compensable services for
completion of the work as set forth in Paragraph 1, "Consultant Obligations". The
final ten percent shall be paid, not to exceed the maximum amount provided for in
Paragraph 4, "Fees to be Paid to Consultant", to CONSULTANT within thirty (30)
days of the Planning Director issuing the Notice of Completion of the contract as
outlined in Paragraph 3, "Progress and Completion".
Monthly invoice shall bill CITY for each task completed and for the
percentage of each task partially completed in the preceding month. All invoices
shall be detailed and include a written description of the tasks completed and tasks
partially completed, and the total amount of requested payment as set forth in the
schedule of fees (Attachment B).
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7. FINAL SUBMISSIONS
Within fifteen (15) days of completion and approval of the recommended
changes to the Zoning Ordinance and the Safety Element the CONSULTANT shall
deliver to the CITY all items as outlined in paragraph 1, “Consultant Obligation”.
8. CHANGESIN WORK
If, in the course of the contract, changes seem merited by the CONSULTANT
or the CITY, and informal consultations with the other party indicate that a change
in the conditions of the contract is warranted, the CONSULTANT or the CITY may
request a change in contract. Such changes shall be processed by the CITY in the
following manner: A letter outlining the required changes shall be forwarded ‘to the
CITY by CONSULTANT to inform them of the proposed changes along with a
statement of estimated changes in charges or time schedule. A supplemental
agreement shall be prepared by the CITY and approved by the CITY according to the
procedures described in Carlsbad Municipal Code Section 3.28.1 72. Such
supplemental agreement shall not render ineffective or invalidate unaffected
portions of the agreement.
9. COVENANTS AGAINST CONTINGENT FEES
The CONSULTANT warrants that their firm has not employed or retained any
company or person, other a bona fide employee working for the CONSULTANT, to
solicit or secure this agreement, and that CONSULTANT has not paid or agreed to
pay any company or person, other than a bona fide employee, any fee, commission,
percentage, brokerage fee, gift, or any other consideration contingent upon, or
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resulting from, the award or making of this agreement. For breach or violation of
this warranty, the CITY shall have the right to annul this agreement without
liability, or, in its discretion, to deduct from the agreement price or consideration,
or otherwise recover, the full amount of such fee, commission, percentage,
brokerage fees, gift, or contingent fee.
10. NONDISCRIMINATION CLAUSE
The CONSULTANT shall comply with the state and federal laws regarding
nondiscrimination.
11. TERMINATION OF CONTRACT
In the event of the CONSULTANTS failure to prosecute, deliver, or perform
the work as provided for in this contract, the CITY may terminate this contract for
nonperformance by notifying the CONSULTANT by certified mail of the termination
of the CONSULTANT. The CONSULTANT, thereupon, has five (5) working days to
deliver said documents owned by the CITY and all work in progress to the Planning
Director. The Planning Director shall make a determination of fact based upon the
documents delivered to CITY of the percentage of work which the CONSULTANT
has performed which is usable and of worth to the CITY in having the contract
completed. Based upon that finding as reported to the City Manager, the Manager
shall determine the final payment of the contract.
12. DISPUTES
If a dispute should arise regarding the performance of work under this
agreement, the following procedure shall be used to resolve any question of fact or
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interpretation not otherwise settled by agreement between parties. Such questions,
if they become identified as a part of a dispute among persons operating under the
provisions of this contract, shall be reduced to writing by the principal of the
CONSULTANT or the Planning Director. A copy of such documented dispute shall
be forwarded to both parties involved along with recommended methods of
resolution which would be of benefit to both parties. The Planning Director or
principal receiving the letter shall reply to the letter along with a recommended
method of resolution within ten (10) days. If the resolution thus obtained is
unsatisfactory to the aggrieved party, a letter outlining the dispute shall be
forwarded to the City Council for their resolution through the Office of the City
Manager. The City Council may then opt to consider the directed solution to the
problem. In such cases, the action of the City Council shall be binding upon the
parties involved, although nothing in this procedure shall prohibit the parties
seeking remedies available to them at law.
13. SUSPENSION OR TERMINATION OF SERVICES
This agreement may be terminated by either party upon tendering thirty (30)
days written notice to the other party. In the event of such suspension or
termination, upon request of the CITY, the CONSULTANT shall assemble the work
product and put same in order for proper filing and closing and deliver said product
to CITY. in the event of termination, the CONSULTANT shall be paid for work
performed to the termination date; however, the total shall not exceed the lump
sum fee payable under paragraph 4. The CITY shall make the final determination
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as to the portions of tasks completed and the compensation to be made.
14. STATUS OJ? THE CONSULTANT
The CONSULTANT shall perform the services provided for herein in
CONSULTANTS own way as an independent contractor and in pursuit of
CONSULTANTS independent calling, and not as an employee of the CITY.
CONSULTANT shall be under control of the CITY only as to the result to be
accomplished, but shall consult with the CITY as provided for in the request for
proposal.
The CONSULTANT is an independent contractor of the CITY. The payment
made to the CONSULTANT pursuant to the contract shall be the full and complete
compensation to which the CONSULTANT is entitled. The CITY shall not make any
federal or state tax withholdings on behalf of the CONSULTANT. The CITY shall not
be required to pay any workers' compensation insurance on behalf of the
CONSULTANT. The CONSULTANT agrees to indemnify the CITY for any tax,
retirement contribution, social security, overtime payment, or workers' compensation
payment which the CITY may be required to make on behalf of the CONSULTANT
or any employee of the CONSULTANT for work done under this agreement.
The CONSULTANT shall be aware of the requirements of the Immigration
Refom and Control Act of 1986 and shall comply with those requirements,
including, but not limited to, verifying the eligibility for employment of all agents,
employees, subcontractors and consultants that are included in this agreement.
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15. CONFORMITY TO LEGAL REOUIREMENTS
The CONSULTANT shall cause all drawings and specifications to conform to
all applicable requirements of law: federal, state and local. CONSULTANT shall
provide all necessary supporting documents, to be filed with any agencies whose
approval is necessary.
The CITY will provide copies of the approved plans to any other agencies.
16. OWNERSHIP OF DOCUMENTS
All plans, studies, sketches, drawings, reports, and specifications as herein
required are the property of the CITY, whether the work for which they are made
be executed or not. In the event this contract is terminated, all documents, plans,
specifications, drawings, reports, and studies shall be delivered forthwith to the
CITY. CONSULTANT shall have the right to make one (1) copy of the plans for
his/her records.
17. REPRODUCTION RIGHTS
The CONSULTANT agrees that all copyrights which arise from creation of the
work pursuant to this contract shall be vested in CITY and hereby agrees to
relinquish all claim to such copyrights in favor of CITY.
18. HOLD HARMLESS AGREEMENT
The CITY, its officers, and employees shall not be liable for any claims,
liabilities, penalties, fines, or any damage to goods, properties, or effects of any
person whatever, nor for personal injuries or death caused by, or resulting from, any
intentional or negligent acts, errors or omissions of CONSULTANT or
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CONSULTANTS agents, employees, or representatives. CONSULTANT ageees to
defend, indemnify, and save free and harmless the CITY and its officers and
employees against any of the foregoing claims, liabilities, penalties or fines,
including liabilities or claims by reason of alleged defects in any plans and
specifications, and any cost, expense or attorney's fees which are incurred by the
CITY on account of any of the foregoing.
19. ASSIGNMENT OF CONTRAm
The CONSULTANT shall not assign this contract or any part thereof or any
monies due thereunder without the prior written consent of the CITY.
20. SUBCONTRACTING
If the CONSULTANT shall subcontract any of the work to be performed
under this contract by the CONSULTANT, CONSULTANT shall be fully responsible
to the CITY for the acts and omissions of CONSULTANTs subcontractor and of the
persons either directly or indirectly employed by the subcontractor, as
CONSULTANT is for the acts and omissions of persons directly employed by
consultant. Nothing contained in this contract shall create any contractual
relationship between any subcontractor of CONSULTANT and the CITY. The
CONSULTANT shall bind every subcontractor and every subcontractor of a
subcontractor by the terms of this contract applicable to CONSULTANTS work
unless specifically noted to the contrary in the subcontract in question approved in
writing by the CITY.
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21. PROHIBITED INTEREST
No official of the CITY who is authorized in such capacity on behalf of the
CITY to negotiate, make, accept, or approve, or take part in negotiating, making,
accepting, or approving of this agreement, shall become directly or indirectly
interested personally in this contract or in any part thereof. No officer or employee
of the CITY who is authorized in such capacity and on behalf of the CITY to exercise
any executive, supervisory, or similar functions in connection with the performance
of this contract shall become directly or indirectly interested personally in this
contract or any part thereof.
22, VERBAL AGREEMENT OR CONVERSATION
No verbal agreement or conversation with any officer, agent, or employee of
the CITY, either before, during or after the execution of this contract, shall affect
or modi& any of the terms or obligations herein contained nor entitle the
CONSULTANT to any additional payment whatsoever under the terms sf this
contract.
23. SUCCESSORS OR ASSIGNS
Subject to the provisions of Paragraph 18, "Hold Harmless Agreement," all
terms, conditions, and provisions hereof shall insure to and shall bind each of the
parties hereto, and each of their respective heirs, executors, administrators,
successors, and assigns.
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24. EFFE(=TIvEDATE
This agreement shall be effective on and from the day and year first above
written.
25. CONFLI~OFINTEREST
The CONSULTANT shall file a Conflict of Interest Statement with the City
Clerk in accordance with the requirements of the City of Carlsbad Conflict of
Interest Code. The CONSULTANT shall report investments or interests in real
property.
26. INSURANCE
The CONSULTANT shall obtain and maintain policies of general liability
insurance, automobile liability insurance, and a combined policy of workeis
compensation and employers liability insurance from an insurance company
authorized to do business in the State of California which meets the requirements
of City Council Resolution No. 90-96 in an insurable amount of not less than one
million dollars ($1,000,000) each, unless a lower amount is approved by the City
Attorney or the City Manager. This insurance shall be in force during the life sf this
agreement and shall not be canceled without thirty (30) days prior written notice
to the CITY sent by certified mail.
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The CITY shall be named as an additional insured on these policies. The
CONSULTANT shall furnish certificates of insurance to the CITY before
commencement of work.
Executed by CONSULTANT this ld -day of Yk:cqfl i' I
,19w. 7 r',
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CONSULTANT: CITY OF CARLSBAD, a municipal
corporation of the State of California Leighton and Associates, Inc.
(name of Consultant) 3 p&
By: &CcV L'
->Jcc - e 2 CLL-
(sign here)
ATTEST:
-
(print name here)
-_
- City Clerk
ALETHA L. MUTENKRANZ +et-, [ ecyK * 1, 55- 5s~
(title and org+adon of signatory) +;?h ~ f &e6&kf L&2LT&fgr/i ,7
(Proper notarial acknowl pent of execution by CONSULTANT must be attached.)
(President or vice-president and secretary or assistant secretary must sign for
corporations. If only one officer signs, the corporation must attach a resolution
certified by the secretary or assistant secretary under corporate seal empowering
that officer to bind the corporation.)
APPROVED AS TO FORM:
VINCENT F. BIONDO, JR.
City Attorney
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Oraoc3e J 1% STATE OF CALIFORNIA
COUNTY OF
On this tq* day of &zL5+- 1971 before me, the undersigned, State, personally appeared
and
otary Public in and for said
1S.r- A. CCarih
rmi Poorw~d 9 personally known to miS(~ --- ) to be the persons who executed the
within instrument as President and Ff,ss',&aTSecretary, respectively, of the Corporation therein named, and acknowledged to me that the Corporation executed it pursuant to its by-laws or a resolution of its board of directors.
UITNESS my hand and official seal. NOTARY PUBUC Ci ;a- 3, \4.-3L Notary Public in and for said State
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L . - ---.----_LL-J
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ATTACH 0 0
LEIGHTON AND ASSOCIATES, INC.
SCOPE OF WORK
Task 1:
Hazard overlay maps will be prepared at a scale of 1 inch = 1000 feet. Once the map data
fully integrated into the CITY'S GIS system, select data can be presented at a variety of scal
and formats to simplify the update of the database with new information. This is also the premi
for a seismic hazard overlay concept, a plan where hazards can be mixed and matched
provide individual and combined constraints for a particular site early in the review process. Tt
portion of the study will include the research review, reconnaissance mapping and aerial phc
review necessary to compile a hazard map for the geotechnical hazards listed below.
Identification and Mappinq of Geotechnical Hazards
Task 1.1:
The State Alquist-Priolo Special Study Zone (APSSZ) Act states, "active faults" are tho
faults deemed "sufficiently active and well-defined" to constitute a surface rupture hazai
and should show evidence of displacement of the ground surface sometime within t
last 10,000 to 11,000 years. Potentially active faults, by State definition, are those fau
that show evidence of activity between 11,000 and 2 million years ago. The State has r
identified any APSSZ's in the City of Carlsbad. Further, to date, no research h
indicated any candidate faults in the City for the State program.
Leighton and Associates will delineate all significant faults in the City, verify their ri
based on State Fault Evaluation Reports and other research, and recommend appropri:
investigation procedures to be followed during project review.
Task 1.2:
Leighton and Associates is on the State Board to create broad-scale maps of predict
ground motion maps as part of the new State Hazards Mapping Program. Leighton \
use the same criteria to microzone the City at a scale of 1 inch = 400 feet.
Carlsbad is at risk from several regional seismic sources; the Elsinore fault to the e?
the Newport-lnglewood fault to the north, the Rose Canyon fault to the south, and 1
cluster of ongoing seismicity offshore responsible for the M, = 4.3, July 1986 earthqua'
Dr. Mehrdad Madhyiar, engineering seismologist, and Paul Sanchez, hazards mappi
specialist, will coordinate with David Evans and Associates (DEA) to develop the grou
motion map representing potential shaking from the principal seismic sources. Leigh1
will do the following:
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Seismicallv Induced Surface Rupture
Seismicallv Induced Ground Shakinq
Grid the City into a series of digitized polygons compatible with the 1 inch = L
foot resolution of the ground conditions (engineering geologic materi
distribution) map.
Calculate maximum probable seismic intensities for each grid unit. 0
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0 Determine the greatest seismic intensity for each grid unit, represent
simultaneously the potential seismic sources noted above.
Modify the ground motion for each grid by a multifold classification schel accounting for differences in surface geology,
Correct the ground motion data for amplification determined from the shear WE velocity difference of Tertiary sediments relative to underlying granitic/volca
basement and depth to the basement contact.
An output file will be developed to merge with DEA’s ARC/INFO GIs, which L
automatically contour the data at a scale of 1 inch = 400 feet.
Task 1.3:
Types of seismically induced ground failure include liquefaction, earthquake-induc
landsliding, and settlement.
Engineering geologic materials maps will be prepared for the liquefaction, slope stabilii
soil and coastal erosion, and bedrock rippability studies. For this task Leighton will al:
use the engineering geologic materials map to identify units in the City susceptible
settlement, including unengineered fill, old dumps, and recent alluvium.
Task 1.4: Seiches
Leighton will coordinate with the State Division of Safety of Dams as part of the da
analysis in Task 4 to assess the impact of minor flooding from Calavera Dam, San Marcc
Dam, and Squires Dam. Leighton will acquire Federal Emergency Management Agent
(FEMA) flood reports to determine whether effects of seiching are incorporated into 10
and 5bO-year flood maps for lagoonal areas; if not, a methodology will be developed
show the effect as a caution zone.
Task 1.5: Tsunamis
FEMA studies are the best indicator of tsunami vulnerability of the southern Californi
coastline. In some cases, such studies have been found to be more conservative tha
published National Insurance Flood Rate maps (NIFR). Detailed studies have not bee
translated onto NIFR maps because most coastal areas lack suitably detailed contoL
maps. With the 1 inch = 1000-foot scale maps and resolute elevation control providec
Leighton will use a FEMA study by Lee, et. at. (1982), to depict precise flood vulnerabiliQ
the interaction of tsunami flood with onshore topography and land-based structures. Thi
map will be accurate enough to apply to a variety of regulatory and planning purposes
such as requiring the anchorage of potential debris and storage of hazardous material
in waterproof containers in tsunami hazard areas.
Task 1.6:
Leighton will compile catastrophic dam failure inundation maps obtained from either CIT
or County archives, the dam owners, or the California Division of Safety of Dams. I
discussion of our analysis is provided in Section 2.4.
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Seismicallv Induced Ground Failure
Seismicallv Induced Dam Failure
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Task 1.7: Slope Stability
The susceptibility of a slope area to failure is a function of slope steepness, the degrc
to which the underlying geologic unit is prone to sliding, and the relative structural dip
the unit to the slope face. For example, the sedimentary units of the Santiago and Delm
Formations occur over a wide area of the City and contain thin clay seams and clay1
siltstone and claystone units that make them more susceptible to slope instability ai
landsliding than older granitic rocks or conglomerate units. Where the gently we:
dipping sedimentary formations intersect a west-facing slope, the potential for instabil
increases. For this analysis Leighton will do the following:
0 Delineate different geologic units in the City and determine their relati
susceptibility to slope failure.
Field check geologic contacts and structure in key areas where resolution can I
improved over California Division of Mine and Geology Maps and other availat
research sources.
Overlay the slope gradient map (Task 3) with the engineering geologic materii
map.
Prepare interpretive maps of landslide susceptibility/slope instability, includi
coastal bluff stability.
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The slope stability map to be prepared by Leighton, will show the relative susceptibiliti
of hillslope areas in the City, emphasizing slopes with inclinations greater than 40 perce
Because the failure style of nonearthquake-induced slope instabilities and landsliding c
be similar to that of earthquake-induced failure styles, one slope stability map will
prepared.
Task 1.8:
This will be a component of the engineering geologic materials maps and will take ir
consideration the susceptibility of coastal bluffs to both surface erosion and retreat d
to wave action. Bedrock types, degree of fracturing, and slope stability will also
considered.
For the entire Carlsbad coastline, previous studies related to shoreline erosion and bea
retreat will be reviewed. An updated soil/coastal erosion map will be prepared
Leighton, indicating areas of increased historical erosion or areas of potential coas
erosion.
Task 1.9:
Areas of nonrippable materials will be mapped by Leighton. This will be an interpretat
map based on the identified geologic materials and their known ease or difficulty
excavate.
Soil and Coastal Erosion
Areas of Nonrippable Material
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Task 1.1 0: Mudslides
Using the slope gradient determined from Task 3, and information on soil profiles (
canyon margins, Leighton will outline areas along slopes in the City susceptible
mudslides. Such caution zones are designed to require a developer to conduct sedime
transport studies to design debris basins and other debris and mudslide protecti
devices.
Task 1 .l 1 :
The engineering geologic materials maps will be used to derive expansive ai
compressive units based on our experience and knowledge of the geologic units.
Task 1.1 2: Liquefaction Potential
As a first step in determining liquefaction potential, Leighton will identify saturate
cohesionless, Holocene sand and silt to demonstrate susceptibility of surficial depos
to liquefaction, a process describing the liquid like behavior of alluvium under groui
shaking. The City is dissected by a number of drainages containing Holocene sedimen
including Buena Vista Lagoon, Agua Hedionda, and Batiquitos Lagoon, and is bound
on the west by recent sands along the coast. Soil reports in CITY files, Regional Wa
Quality Control Board information, and other available subsurface data will be com pi1
for these areas to determine the following:
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Expansive and Compressive Soils
Depth to perched and shallow ground water, up to 50 feet below the surface;
Texture (.01-.3mm) of the sediment and Standard Penetration Test (SPT) valu
(N values of SPT between 0 and 25 blows); and
Thickness of the Holocene unit. 0
Leighton's maps of engineering geologic materials and shallow ground water will
overlain to determine the distribution of alluvial areas susceptible to liquefaction. GIS d;
will be used to determine areas susceptible to liquefaction. GIS data will be used
determine areas of susceptible sediments that are shallow sloping (> 0.5 percent slo~
to predict areas susceptible to more damaging liquefaction potential failure styles (flo
and lateral spreading). Last, the ground motion data and thickness will be used
determine liquefaction Dotential and severity. These factors take into account 1
probability that ground motion will be intense enough to initiate liquefaction, and the L
thick enough to cause significant ground failure at the surface.
Task 1.1 3: Landslides
Existing landslides will be identified utilizing available aerial photographs, existi
landslide identification studies conducted by the California Division of Mines and Geoloi
ElRs prepared for the CITY, and other relevant studies. Per discussion with the CI'
aerial photographs associated with the topographic base maps will be available
analysis.
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Task 1.1 4: Subsidence
Coastal subsidence, particularly in low-lying lagoonal areas, can be initiated by a lar!
nearby earthquake, Leighton will investigate the potential for subsidence ar
consequential inundation of near shore areas in Task 1.5 (Tsunami). The potential
subsidence due to ground water withdrawal in areas of known existing wells will also I
evaluated.
Task 2: Mineral Resources lnventorv
Leighton will conduct a comprehensive review of available published and unpublished IiteratL
to compile the location and type of commercial mining facilities which operate or have operatc
in the City. The geotechnical database developed from Task 1 will allow Leighton and Associat
to identify potential mineral resources within the City and discuss their possible commerc
quality. Leighton will provide the following:
A. Identify and map type, location and quality of resources, including oil, gas and geotherrr
resources.
Map mineral resource areas classified or designated by the California Division of Min
and Geology (CDMG). In addition, CITY files and County records will be reviewed i
evidence of mining operations or mineral resources.
Identify and map existing mining areas, including oil, gas and geothermal wells.
Preparation of one comprehensive map of the City showing the location of all kno\
mineral resources or mining operations.
B.
C.
D.
Task 3: Slope Gradient Analvsis
Leighton will prepare a slope analysis map of the City. This map will identify slope areas ir
mapped format that includes slope areas in excess of 40 percent, slopes that vary between
and 40 percent, and slope areas between 0 and 25 percent. Discussions with the CIN ha
determined the available digital topological data contains 3-D coordinates (X, Y, Z). T
intermediate contour information has not been shown when the area between two index contot
is too small to graphically show all of the contour information. Most of the areas of conflict, f
CITY staff, appear to occur at a 40 percent or greater slope. A further review of the dig
topological data will be performed to determine the best course of action to generate the slo
analysis.
David Evans and Associates will use the GIS to computer generate the slope analysis. 1
computer-generated slope analysis will be accomplished using a Triangular Irregular Networki
(TIN) process. The TIN process uses the contour data to generate a 3-0 representation of 1
City.
Task 4:
As part of this task, Leighton will develop catastrophic dam failure inundation maps. lnformat
will be obtained from various sources including the Division of Safety of Dams, Fed€
Emergency Management Agency (FEMA) studies, and ownerdmanagers of the Calavera D:
Catastrophic Dam Failure Analysis
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Squires Dam, and San Marcos Dam. Based on this information, Leighton will present areas
potential inundation in a mapped format and data entered into the GIS system. Whe information is not available, flooding will be modeled.
Existing and proposed land uses in the inundation path will be identified. A database
dependent or immobile populations and other critical facilities that currently lie in the path will 1
created for delivery to the CITY. Leighton will recommend incompatible land uses for futu
development proposed in such zones.
Task 5:
For the purpose of demonstration maps, DEA will provide the required GIS support services
Leighton and Associates. DEA will use in-house ARC/INFO systems to provide the requirc
maps. DEA currently uses ARC/INFO on IBM 386 PC’s and Spare workstations. The followii
mapping exhibits will be generated.
Preparation of Demonstration Maps
0
0
0 Seiches
0 Tsunamis
0 Seismically Induced Dam Failure
0 Slope Instability
0
0 Areas of Nonrippable Soils
0 Mud Slides
0 Expansive/Compressive Soils
0 Liquefaction Potential
0 Landslides
0 Subsidence
0 Land-Use Compatibility Maps
0
0 Existing Mining Area Locations
0 Slope Analysis Maps
Known Active and Potentially Active Faults
Seismically Induced Ground Shaking and Surface Rupture
Area Subject to Soil Erosion, including Coastal Erosion
Inventory of Mineral and Soil Resources
DEA will work closely with the CITY and Leighton and Associates to generate the requir
ARC/INFO mapping exhibits. The mapping portion of the project will consist of the followi
tasks:
0 Refine the mapping requirements
0
0
0
0
0
0
Review existing paper maps and digital topological data
Define a GIS database structure
Enter the required mapping information into the ARC/INFO system
Prepare and plot the mapping exhibits
Deliver plots and digital information to the CITY
Assist CITY staff to load digital data on their GIS
Leighton and Associates will perform the required analysis for the project except for the SIC
analysis, which will be generated by DEA. The digital topological data provided by the CITY
be entered into DEA’s GIs. DEA will provide Leighton and Associates with computer-genera’
plots of the topological information showing roads, road names, contours, elevations, c
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Leighton and Associates will highlight the specific information on the plots and provide DEA wii
a product ready to be entered into the GIs. The mapping information will be entered into the GI
using large digitized tables. GIS technicians will digitize the mapping information into tt
appropriate layers, ARC/INFO coverage. GIS specialists will concentrate on entering tt
attribute/textual information and generating the required mapping exhibits. This procedure w
be used to generate all of the required map exhibits, except for the seismically induced grout-
shaking and slope analysis.
Leighton and Associates will use a computer program to determine the induced ground shakir
based on the bedrock types and earthquake magnitude, and provide DEA with a computer fi
containing the results. The results of the computer program will be entered into the GIS
graphically show the affected areas.
The final deliverables will include 1 inch = 1000-foot scale maps of each required mappir
exhibit and a magnetic tape and/or floppy disks of the ARC/INFO data. DEA will deliver the da
in standard drawing exchange format, DFX. However, since the CITY and DEA have direct
compatible ARCIINFO systems, the digital data could be delivered in ARC/INFO Export form,
The Export format is the standard file structure used to transport digital information betwec
ARC/INFO systems. The Export format also permits all attribute information entered into the G
to remain intact. DEA will also assist the CITY in installing the generated digital mappii
information onto their GIs.
Task 6: Land-Use Compatibilitv Matrix
This task will be formulated utilizing the geotechnical data base developed in Task 1 and tl
manual of guidelines for review of development proposals which will be prepared as part of Ta
8. The land-use compatibility map and matrix will identify and rate potential areas of geotechnic
risk and assign appropriate levels of investigation with respect to the type of developme
planned.
Task 7: Review and Recommend Chanaes to Existinq Geotechnical Policies, Ordinance
as well as the Geotechnical Portion of the Safetv Element of the General Plan
Leighton will review all pertinent existing ordinances, codes, policies and guidelines for adequa
in meeting State Law as well as meeting the needs of the City. Leighton will meet with City st
to discuss the issues and will then prepare a report recommending revisions and additions
the City’s existing geotechnical policies, ordinances, as well as the geotechnicau sections of 1
Safety Element of the General Plan. These recommendations will address developmc
standards for projects along faults, areas of unstable soil conditions, areas of known mine
resources, and areas subject to coastal erosion, etc. Revisions will be submitted in a forn
whereby deletions are lined through and additions are in bold typeface. The first draft will
submitted to City staff, the development community and other interested parties. The draft i
be revised once with agreed upon changes. The recommended revised ordinances and revis
General Plan Element sections will be delivered to the City in City of Carlsbad ordinance z
General Plan format.
Task 8:
This task is supportive and integral to the success of the development standards. Withou
competent technical review, even the most stringent development standards are rendei
ineffective. Preparing a manual for the CITY to use in the review of technical developm
studies will standardize that process and provide a basis from which to regulate professio
Manual of Guidelines for Review of DeveloDment Proposals
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practice, and ultimately enhance public safety. To prepare the manual, Leighton will format ti
City of Carlsbad manual in a similar manner to that of the City of San Diego, including extensi
graphics and additional issues such as blasting. Development standards for coastal bluff are
will be formulated. The manual will also include the types of filed studies which the City shol
require for evaluating development proposals faced with each geotechnical risk factor; t
submittal requirements for each study; set out standard alternative mitigation techniques to ab:
existing or potentially adverse conditions. The manual will also address the blasting
nonrippable soils and establish standards and programs for blasting within areas of habitat
buildings, areas with structures of any type, and areas devoid of structures.
In addition to the review manual, Leighton will prepare a small information-oriented booklet. T
booklet will explain the geologic conditions of Carlsbad, how they impact the homeowner, danc
signals, and mitigation techniques of which a property owner should be aware. This brief book
entitled "The Geologic Story of Carlsbad; What Does it Mean for You?", will be written
nontechnical terms, will be well illustrated, will include seismic risk and safety tips, and may
distributed over the counter.
Task 9: Deliverable Products
Task 9.1 : First Draft
Upon completion of the above tasks, Leighton and Associates will compile and sub1
the first draft of the geotechnical portions of the Zoning Ordinance. The first draft rep
would contain the demonstration maps and all supporting analytical statements describ
in the scope of work. The first draft submittal will include the following:
A. Individual and combined reproducible mylar maps at 1 inch = 1000 foot scale,
the following:
0
0 Seiches
0 Tsunamis
0 Seismically induced dam failure
0
0 Existing mining area locations
0
Known active and potentially active faults
Inventory of mining area locations
Slope analysis indicating 40% slopes with City boundaries.
B. Individual and combined reproducible mylar maps at 1 inch = 400 foot scale,
the following:
0
0 Slope instability
0
0 Areas of nonrippable soils
0 Mud slides
0 Expansive/Compressive Soils
0 Liquefaction potential
0
0 Subsidence
Seismically induced ground shaking and surface ruptures.
Areas subject to soil erosion, including coastal erosion
Landslides (developed and undeveloped areas)
8
0 0
0 Land-use compatibility
0 Slope analysis of slopes 0-15%, 25-40%, and 40+%
C. Land-use compatibility matrix
D.
E.
F.
G.
H.
Analysis of flooding due to dam failure
Geotechnical portions of the Zoning Ordinance
Manual of guidelines for review of development proposal
The Geologic Story of Carlsbad
Digital files of the following items, in ARCIINFO format:
0
0
0 Seiches
0 Tsunamis
0 Seismically Induced Dam Failure
0 Slope Instability
0
0 Areas of Nonrippable Soils
0 Mud Slides
0 Expansive/Compressive Soils
0 Liquefaction Potential
0 Landslides
0 Subsidence
0 Land-Use Compatibility Maps
0 Existing mining Area Locations
0 Slope Analysis Maps
Known Active and Potentially Active Faults
Seismically Induced Ground Shaking and Surface Ruptures
Area Subject to Soil Erosion, including Coastal Erosion
<o Inventory of Mineral and Soil Resources
Task 9.2:
Subsequent to the CITY'S review of the first draft report, Leighton and Associates ar
DEA will work closely with the CITY to incorporate the desired revisions and commen
into the second draft submittal. We anticipate only minor revisions will be necessary aft
the CITY'S review of the second draft. As such, Leighton and Associates has budget6
fees to prepare two drafts prior to the submittal of the final product. Provided the CI1
reviews are conducted in a prompt manner, we anticipate that all work will be completc
within approximately six months.
Second Draft and Final Product
Task 10: Reproduction Work
With the exception of the reproduction costs to prepare and review all draft documeni
prepared by Leighton and Associates, specific funds have not been allocated in th
Leighton ana Associates Contract for final document reproduction work. Costs for th
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reproduction of final maps, final reports, the recommended revised geotechnical porti
of the Zoning Ordinance, the guidelines manual, and the information booklet have be
estimated herein for budgetary purposes only. The actual reproduction work will be do
by the City's vendor of choice.
Section 10.1
A.
Deliverable Products to the Citv
The following documents are to be provided in WordPerfect format (or translatal
format) on a 3.50" disk and one (1) camera-ready master hard-copy, for black a
white copies:
1,
2. Appendices to above document.
3.
4.
Final draft of the geotechnical portions of the Zoning Ordinance.
Guidelines manual to be used for the review of technical developmc
standards, submittal requirements, and mitigation techniques.
Information booklet (The Geologic Story of Carlsbad; What Does It Me
For You?)
AML:tvo:lI
Leighsc
10
AI IACUMkN 1 l3.- e 0
LEIGHTON AND ASSOCIATE$ INC.
Geotechnical and Environmental Engineering C
April 26, 1991
(Revised July 22, 1991)
Project No. 8910298
To : City of Carlsbad
Planning Department
2075 Las Palmas Drive
Carlsbad, California 92009-4859
Attention: Ms. Adrienne Landers, Senior Planner
Subject: Revised Cost Proposal
Geotechnical Hazard Analysis and Mapping Study
Carlsbad, California
In accordance with your request, we are herewith submitting our revised cost proposal for
Geotechnical Hazard Analysis and Mapping Study. This cost estimate has been based on the rev]
scope as discussed with you on July 16, 1991. A copy of that scope will be included as part of
contract documents. The cost for each individual task is summarized below.
Task Description cost
1 Identification and Hazard Mapping $16,250.00
2 Mineral Resources Inventory 1,592.00
3 Slope Gradient Analysis 3,572.00
4 Dam Inundation Analysis 2,692.00
5 Preparation of Demonstration Maps 17,192.00
6 Land-Use Compatibility Matrix 7,168.00
7 Geotechnical Policies and Ordinances 8,245.00
8 Development Guidelines Manual 13,295.00
9 Deliverable Products 23.425.00
Total Cost* $93,431.00
* Supplies will be billed on a cost plus 15 percent basis and will
be billed separately from this contract.
3934 MURPHY CANYON ROAD, SUITE 8205, SAN DIEGO, CALIFORNIA 92123 (619) 292-8030 (800) 44
FAX (619) 29
0 e 891029f .
A breakdown of the estimated costs for each individual task is attached as Figure 1.
With regard to the City of Carlsbad Standard Contract, we have reviewed these documents and ai
to the terms and conditions.
We are looking forward to working with the City on this challenging and rewarding project and
prepared to commence work immediately upon receiving authorization to proceed. If you have
questions, please contact this office.
Respectfully submitted,
LEIGHTON AND ASSOCIATES, INC. 4- Michael R. Stewart, CEG 1349
Chief Geologist
LqSL-Qab
Stan Helenschmidt, GE 2064
Chief EngineerNanager
Attachment:
Distribution: (2) Addressee
Figure 1 - Project Cost Schedule
B 4 Oh
September 27, 1991
Leighton and Associates 3934 Murphy Canyon Rd., Suite B205 San Diego, CA 92123
RE: AGREEMENT FOR PREPARATION OF GEOTECHNICAL STUDIES AND ANALYSIS FOR UPDA
OF THE SAFETY ELEMENT OF THE GENERAL PLAN
The Carlsbad City Council, at its meeting of September 24, 1991, adopt Resolution No. 91-319, approving an agreement with Leighton and Associates, In for the preparation of geotechnical studies and analysis for update of the safe element of the City of Carlsbad General Plan.
Enclosed for your records is a copy of the fully executed agreement and a co of the above-referenced resolution.
In accordance with Section 25 of the Agreement, you are required to file Conflict of Interest Statement with the City Clerk. Anyone in the Company w
is working on City projects must file a Form 730, Statement of Econom Interests. Enclosed for your use in meeting the filing requirements is a Fo 730 and Instruction Manual, and a copy of Amended Appendix I. We will provi additional forms upon request.
The completed Assuming Office Statement is due in the City Clerk’s Office later than 5:OO p.m., on Monday, October 28, 1991.
If you have any questions, or need additional forms, please call me at (619) 43 2917.
&!ii-$K& Assistant City Clerk
Encs.
1200 Carlsbad Village Drive 0 Carlsbad, California 92008 0 (61 9) 434-28(
0 0 1 .br
AGREEMENT
THIS AGREEMENT, made and entered into as of the Ad 4i; day of
w , 1991, by and between the CITY OF CARLSBAD, a municipal
corporation, hereinafter referred to as "CITY", and LEIGHTON AND ASSOCIATES,
INC., hereinafter referred to as "CONSULTANT".
RECITALS
CITY requires the services of a Geotechnical and Environmental Engineering
consultant to assist staff in revisions to the geotechnical portion of the Safety
Element of the General Plan; and CONSULTANT possesses the necessary skills and
qualifications to provide the services required by the CITY;
NOW, THEREFORE, in consideration of these recitals and the mutual
covenants contained herein, CITY and CONSULTANT agree as follows:
1. CONSULTANT'S OBLIGATIONS
The Consultant shall assist CITY staff in revisions to the geotechnical portions
of the Zoning Ordinance and the Safety Element. Specific tasks shall include all
items as outlined in Attachment A, attached and made a part hereof.
2. CITY OBLIGATIONS
The CITY shall make payment to the consultant as provided in paragraph 6,
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"Payment of Fees" of the Agreement.
The CITY shall make available to the consultant all currently held plans,
maps and background information.
The CITY shall coordinate all meetings, including CITY hearings and
associated noticing.
The CITY shall provide the consultant with any goals, policies, standards,
recommendations, or any other pertinent information deemed necessary for
inclusion in the geotechnical portions of the Zoning Ordinance and the Safety
Element.
3. PROGRESS AND COMPLETION
The work under this contract will begin within five (5) days after receipt of
notification to proceed by the CITY and be completed as agreed upon by both
parties following the establishment of a schedule for completion of all tasks as
outlined in Attachment A. The Planning Director will provide CONSULTANT with
a Notice of Completion following the satisfactory completion of all tasks.
Extensions of time may be granted if requested by the CONSULTANT and agreed
to in writing by the Planning Director. The Planning Director will give allowance
for documented and substantiated unforeseeable and unavoidable delays not caused
by a lack of foresight on the part of the CONSULTANT, or delays caused by CITY
inaction or other agencies' lack of timely action.
4. FEES TO BE PAID TO CONSULTANT
The total shall not exceed the fee payable according to Paragraph 6,
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"Payment of Fees," and shall be $ 4 3: q3/ 0 . No other compensation for
services will be allowed except those item covered by supplemental agreements per
Paragraph 8, "Changes in Work."
5. DURATION OF CONTRACT
This agreement shall extend for a period of six (6) months from date thereof.
The contract may be extended for one (1) additional one (1) year periods or parts
thereof, based upon satisfactory performance and the CIWs needs.
6. PAYMENT OF FEES
Payment of fees shall be made within thirty (30) days after receipt and
approval of a monthly invoice submitted by CONSULTANT to CITY. The
CONSULTANT shall be paid for up to ninety percent of the compensable services for
completion of the work as set forth in Paragraph 1, "Consultant Obligations". The
final ten percent shall be paid, not to exceed the maximum amount provided for in
Paragraph 4, "Fees to be Paid to Consultant", to CONSULTANT within thirty (30)
days of the Planning Director issuing the Notice of Completion of the contract as
outlined in Paragraph 3, "Progress and Completion".
Monthly invoice shall bill CITY for each task completed and for the
percentage of each task partially completed in the preceding month. All invoices
shall be detailed and include a written description of the tasks completed and tasks
partially completed, and the total amount of requested payment as set forth in the
schedule of fees (Attachment B).
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7. FINAL SUBMISSIONS
Within fifteen (15) days of completion and approval of the recommended
changes to the Zoning Ordinance and the Safety Element the CONSULTANT shall
deliver to the CITY all items as outlined in paragraph 1, "Consultant Obligation".
8. CHANGES IN WORK
If, in the course of the contract, changes seem merited by the CONSULTANT
or the CITY, and informal consultations with the other party indicate that a change
in the conditions of the contract is warranted, the CONSULTANT or the CITY may
request a change in contract. Such changes shall be processed by the CITY in the
following manner: A letter outlining the required changes shall be forwarded to the
CITY by CONSULTANT to inform them of the proposed changes along with a
statement of estimated changes in charges or time schedule. A supplemental
agreement shall be prepared by the CITY and approved by the CITY according to the
procedures described in Carlsbad Municipal Code Section 3.28.1 72. Such
supplemental agreement shall not render ineffective or invalidate unaffected
portions of the agreement.
9. COVENANTS AGAINST CONTINGENT FEES
The CONSULTANT warrants that their firm has not employed or retained any
company or person, other a bona fide employee working for the CONSULTANT, to
solicit or secure this agreement, and that CONSULTANT has not paid or agreed to
pay any company or person, other than a bona fide employee, any fee, commission,
percentage, brokerage fee, gift, or any other consideration contingent upon, or
4 Rev. 11/8/90
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resulting from, the award or making of this agreement. For breach or violation of
this warranty, the CITY shall have the right to annul this agreement without
liability, or, in its discretion, to deduct from the agreement price or consideration,
or otherwise recover, the full amount of such fee, commission, percentage,
brokerage fees, gift, or contingent fee.
10. NONDISCRIMINATION CLAUSE
The CONSULTANT shall comply with the state and federal laws regarding
nondiscrimination.
11. TERMINATION OF CONTRACT
In the event of the CONSULTANT’S failure to prosecute, deliver, or perform
the work as provided for in this contract, the CITY may terminate this contract for
nonperformance by notifying the CONSULTANT by certified mail of the termination
of the CONSULTANT. The CONSULTANT, thereupon, has five (5) working days to
deliver said documents owned by the CITY and all work in progress to the Planning
Director. The Planning Director shall make a determination of fact based upon the
documents delivered to CITY of the percentage of work which the CONSULTANT
has performed which is usable and of worth to the CITY in having the contract
completed. Based upon that finding as reported to the City Manager, the Manager
shall determine the final payment of the contract.
12. DISPUTES
If a dispute should arise regarding the performance of work under this
agreement, the following procedure shall be used to resolve any question of fact or
5 Rev. 11/8/90
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interpretation not otherwise settled by agreement between parties. Such questions,
if they become identified as a part of a dispute among persons operating under the
provisions of this contract, shall be reduced to writing by the principal of the
CONSULTANT or the Planning Director. A copy of such documented dispute shall
be forwarded to both parties involved along with recommended methods of
resolution which would be of benefit to both parties. The Planning Director or
principal receiving the letter shall reply to the letter along with a recommended
method of resolution within ten (10) days. If the resolution thus obtained is
unsatisfactory to the aggrieved party, a letter outlining the dispute shall be
forwarded to the City Council for their resolution through the Office of the City
Manager. The City Council may then opt to consider the directed solution to the
problem. In such cases, the action of the City Council shall be binding upon the
parties involved, although nothing in this procedure shall prohibit the parties
seeking remedies available to them at law.
13. SUSPENSION OR TERMINATION OF SERVICES
This agreement may be terminated by either party upon tendering thirty (30)
days written notice to the other party. In the event of such suspension or
termination, upon request of the CITY, the CONSULTANT shall assemble the work
product and put same in order for proper filing and closing and deliver said product
to CITY. In the event of termination, the CONSULTANT shall be paid for work
performed to the termination date; however, the total shall not exceed the lump
sum fee payable under paragraph 4. The CITY shall make the final determination
6 Rev. 11/8/90
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as to the portions of tasks completed and the compensation to be made.
14. STATUS OF THE CONSULTANT
The CONSULTANT shall perform the services provided for herein in
CONSULTANTS own way as an independent contractor and in pursuit of
CONSULTANTS independent calling, and not as an employee of the CITY.
CONSULTANT shall be under control of the CITY only as to the result to be
accomplished, but shall consult with the CITY as provided for in the request for
proposal.
The CONSULTANT is an independent contractor of the CITY. The payment
made to the CONSULTANT pursuant to the contract shall be the full and complete
compensation to which the CONSULTANT is entitled. The CITY shall not make any
federal or state tax withholdings on behalf of the CONSULTANT. The CITY shall not
be required to pay any workers' compensation insurance on behalf of the
CONSULTANT. The CONSULTANT agrees to indemnify the CITY for any tax,
retirement contribution, social security, overtime payment, or workers' compensation
payment which the CITY may be required to make on behalf of the CONSULTANT
or any employee of the CONSULTANT for work done under this agreement.
The CONSULTANT shall be aware of the requirements of the Immigration
Reform and Control Act of 1986 and shall comply with those requirements,
including, but not limited to, verifying the eligibility for employment of all agents,
employees, subcontractors and consultants that are included in this agreement.
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15. CONFORMITY TO LEGAL REQUIREMENTS
The CONSULTANT shall cause all drawings and specifications to conform to
all applicable requirements of law: federal, state and local. CONSULTANT shall
provide all necessary supporting documents, to be filed with any agencies whose
approval is necessary.
The CITY will provide copies of the approved plans to any other agencies.
16. OWNERSHIP OF DOCUMENTS
All plans, studies, sketches, drawings, reports, and specifications as herein
required are the property of the CITY, whether the work for which they are made
be executed or not. In the event this contract is terminated, all documents, plans,
specifications, drawings, reports, and studies shall be delivered forthwith to the
CITY. CONSULTANT shall have the right to make one (1) copy of the plans for
his/her records.
17. REPRODUCTION RIGHTS
The CONSULTANT agrees that all copyrights which arise from creation of the
work pursuant to this contract shall be vested in CITY and hereby agrees to
relinquish all claims to such copyrights in favor of CITY.
18. HOLD HARMLESS AGREEMENT
The CITY, its officers, and employees shall not be liable for any claims,
liabilities, penalties, fines, or any damage to goods, properties, or effects of any
person whatever, nor for personal injuries or death caused by, or resulting from, any
intentional or negligent acts, errors or omissions of CONSULTANT or
8 Rev. 11/8/90
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CONSULTANT’S agents, employees, or representatives. CONSULTANT agrees to
defend, indemnify, and save free and harmless the CITY and its officers and
employees against any of the foregoing claims, liabilities, penalties or fines,
including liabilities or claims by reason of alleged defects in any plans and
specifications, and any cost, expense or attorney’s fees which are incurred by the
CITY on account of any of the foregoing.
19. ASSIGNMENT OF CONTRACX
The CONSULTANT shall not assign this contract or any part thereof or any
monies due thereunder without the prior written consent of the CITY.
20. SUBCONTRACTING
If the CONSULTANT shall subcontract any of the work to be performed
under this contract by the CONSULTANT, CONSULTANT shall be fully responsible
to the CITY for the acts and omissions of CONSULTANT’S subcontractor and of the
persons either directly or indirectly employed by the subcontractor, as
CONSULTANT is for the acts and omissions of persons directly employed by
consultant. Nothing contained in this contract shall create any contractual
relationship between any subcontractor of CONSULTANT and the CITY. The
CONSULTANT shall bind every subcontractor and every subcontractor of a
subcontractor by the terms of this contract applicable to CONSULTANT’S work
unless specifically noted to the contrary in the subcontract in question approved in
writing by the CITY.
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21. PROHIBITED INTEREST
No official of the CITY who is authorized in such capacity on behalf of the
CITY to negotiate, make, accept, or approve, or take part in negotiating, making,
accepting, or approving of this agreement, shall become directly or indirectly
interested personally in this contract or in any part thereof. No officer or employee
of the CITY who is authorized in such capacity and on behalf of the CITY to exercise
any executive, supervisory, or similar functions in connection with the performance
of this contract shall become directly or indirectly interested personally in this
contract or any part thereof.
22. VERBAL AGREEMENT OR CONVERSATION
No verbal agreement or conversation with any officer, agent, or employee of
the CITY, either before, during or after the execution of this contract, shall affect
or modify any of the terms or obligations herein contained nor entitle the
CONSULTANT to any additional payment whatsoever under the terms of this
contract.
23. SUCCESSORS OR ASSIGNS
Subject to the provisions of Paragraph 18, "Hold Harmless Agreement," all
terms, conditions, and provisions hereof shall insure to and shall bind each of the
parties hereto, and each of their respective heirs, executors, administrators,
successors, and assigns.
10 Rev. 11/8/90
e e
24. EFFECITIEDATE
This agreement shall be effective on and from the day and year first above
written.
25. CONFLICT OF INTEREST
The CONSULTANT shall file a Conflict of Interest Statement with the City
Clerk in accordance with the requirements of the City of Carlsbad Conflict of
Interest Code. The CONSULTANT shall report investments or interests in real
property.
26. INSURANCE
The CONSULTANT shall obtain and maintain policies of general liability
insurance, automobile liability insurance, and a combined policy of worker's
compensation and employers liability insurance from an insurance company
authorized to do business in the State of California which meets the requirements
of City Council Resolution No. 90-96 in an insurable amount of not less than one
million dollars ($1,000,000) each, unless a lower amount is approved by the City
Attorney or the City Manager. This insurance shall be in force during the life of this
agreement and shall not be canceled without thirty (30) days prior written notice
to the CITY sent by certified mail.
....
....
....
....
11 Rev. 11/8/90
e 0
The CITY shall be named as an additional insured on these policies. The
CONSULTANT shall furnish certificates of insurance to the CITY before
commencement of work.
fA<<c ,19%. 4 -.+ Executed by CONSULTANT this I %A 3 day of 1 Y dr i
rL!
CONSULTANT: CITY OF CARLSBAD, a municipal
corporation of the State of California Leighton and Associates, Inc. f (name of Consultant)
1 F2,p
,@ &G vi 'JL-- {dGA."-.i_ p L - By:
(sign here)
ATTEST:
(print name here)
,- 7%- \ 6 LA >'1* i&l%z&-q- i i' - "/yb$** ' 1-4- k- &%, b "= I, ~~~ -.
(title and org adon of signatory) City Clerk ?. 7 tr &/dLT&fgb-, f
i Lfld;;'7--- -7.44 i -G'fE4d,f
(Proper notanal acknowle gment of execution by CONSULTANT must be attached.)
(President or vice-president and secretary or assistant secretary must sign for
corporations. If only one officer signs, the corporation must attach a resolution
certified by the secretary or assistant secretary under corporate seal empowering
that officer to bind the corporation.)
APPROVED As TO FORM:
#
#
& a' .
-II
VINCENT F. BIONDO, JR.
City Attorney
! 6
4' * 3
b
12 Rev. 11/8/90
4
1% STATE OF CALIFORNIA
COUNTY OF OIs8-nC)e
On this iq* day of &xLs+ 1991 before me, the undersigned, otary Public in and for sa
State, personally appeared
and nY-tc6e. x. ClCLrG-
rmi POO~~WIL~ personally known to m6(6 s&-i-sw-- ) to be the persons who executed the
within instrument as President and &ss',&&iiSecretary, respectively, of the Corporation therein named, and acknowledged to me that the Corporation executed it pursuant to its by-laws or a resolution of its board of directors. *-d-\L%l
WITNESS my hand and official seal. 3- 3, \4uL--4 Notary Public in and for said State
1-
ATTACH\ 0 0
.L
LEIGHTON AND ASSOCIATES, INC.
SCOPE OF WORK
Task 1:
Hazard overlay maps will be prepared at a scale of 1 inch = 1000 feet. Once the map data I
fully integrated into the CITY'S GIS system, select data can be presented at a variety of scale
and formats to simplify the update of the database with new information. This is also the premis
for a seismic hazard overlay concept, a plan where hazards can be mixed and matched 1
provide individual and combined constraints for a particular site early in the review process. Th
portion of the study will include the research review, reconnaissance mapping and aerial phol
review necessary to compile a hazard map for the geotechnical hazards listed below.
Identification and Mapping of Geotechnical Hazards
Task 1.1:
The State Alquist-Priolo Special Study Zone (APSSZ) Act states, "active faults" are thos
faults deemed "sufficiently active and well-defined" to constitute a surface rupture hazarc
and should show evidence of displacement of the ground surface sometime within th
last 10,000 to 11,000 years. Potentially active faults, by State definition, are those fauli
that show evidence of activity between 11,000 and 2 million years ago. The State has nc
identified any APSSZ's in the City of Carlsbad. Further, to date, no research hz
indicated any candidate faults in the City for the State program.
Leighton and Associates will delineate all significant faults in the City, verify their ris
based on State Fault Evaluation Reports and other research, and recommend approprial
investigation procedures to be followed during project review.
Task 1.2:
Leighton and Associates is on the State Board to create broad-scale maps of predictib
ground motion maps as part of the new State Hazards Mapping Program. Leighton w
use the same criteria to microzone the City at a scale of 1 inch = 400 feet.
Carlsbad is at risk from several regional seismic sources; the Elsinore fault to the eas
the Newport-lnglewood fault to the north, the Rose Canyon fault to the south, and tt-
cluster of ongoing seismicity offshore responsible for the M, = 4.3, July 1986 earthquakl
Dr. Mehrdad Madhyiar, engineering seismologist, and Paul Sanchez, hazards mappin
specialist, will coordinate with David Evans and Associates (DEA) to develop the groun
motion map representing potential shaking from the principal seismic sources. Leightc
will do the following:
0
Seismicallv Induced Surface Rupture
Seismically Induced Ground Shaking
Grid the City into a series of digitized polygons compatible with the 1 inch = 4C
foot resolution of the ground conditions (engineering geologic materia
distribution) map.
Calculate maximum probable seismic intensities for each grid unit. 0
1
e 0
s
0 Determine the greatest seismic intensity for each grid unit, representin
simultaneously the potential seismic sources noted above.
Modify the ground motion for each grid by a multifold classification schem
accounting for differences in surface geology.
Correct the ground motion data for amplification determined from the shear wav
velocity difference of Tertiary sediments relative to underlying granitic/volcani
basement and depth to the basement contact.
0
0
An output file will be developed to merge with DEA’s ARC/INFO GIs, which w
automatically contour the data at a scale of 1 inch = 400 feet.
Task 1.3:
Types of seismically induced ground failure include liquefaction, earthquake-induce
landsliding, and settlement.
Engineering geologic materials maps will be prepared for the liquefaction, slope stabilit
soil and coastal erosion, and bedrock rippability studies. For this task Leighton will als
use the engineering geologic materials map to identify units in the City susceptible 1
settlement, including unengineered fill, old dumps, and recent alluvium.
Task 1.4: Seiches
Leighton will coordinate with the State Division of Safety of Dams as part of the dai
analysis in Task 4 to assess the impact of minor flooding from Calavera Dam, San Marcc
Dam, and Squires Dam. Leighton will acquire Federal Emergency Management Agenc
(FEMA) flood reports to determine whether effects of seiching are incorporated into 101
and 500-year flood maps for lagoonal areas; if not, a methodology will be developed 1
show the effect as a caution zone.
Task 1.5: Tsunamis
FEMA studies are the best indicator of tsunami vulnerability of the southern Californ
coastline. In some cases, such studies have been found to be more conservative thz
published National Insurance Flood Rate maps (NIFR). Detailed studies have not bee
translated onto NIFR maps because most coastal areas lack suitably detailed contoi
maps. With the 1 inch = 1000-foot scale maps and resolute elevation control provide(
Leighton will use a FEMA study by Lee, et. al. (1 982), to depict precise flood vulnerabilit
the interaction of tsunami flood with onshore topography and land-based structures. Th
map will be accurate enough to apply to a variety of regulatory and planning purpose
such as requiring the anchorage of potential debris and storage of hazardous materia
in waterproof containers in tsunami hazard areas.
Task 1.6:
Leighton will compile catastrophic dam failure inundation maps obtained from either Cll
or County archives, the dam owners, or the California Division of Safety of Dams.
discussion of our analysis is provided in Section 2.4.
Seismicallv Induced Ground Failure
Seismically Induced Dam Failure
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I
Task 1.7: Slope Stabilitv
The susceptibility of a slope area to failure is a function of slope steepness, the degre
to which the underlying geologic unit is prone to sliding, and the relative structural dip (
the unit to the slope face. For example, the sedimentary units of the Santiago and Delm:
Formations occur over a wide area of the City and contain thin clay seams and claye
siltstone and claystone units that make them more susceptible to slope instability an
landsliding than older granitic rocks or conglomerate units. Where the gently wes
dipping sedimentary formations intersect a west-facing slope, the potential for instabilil
increases. For this analysis Leighton will do the following:
0 Delineate different geologic units in the City and determine their relath
susceptibility to slope failure.
Field check geologic contacts and structure in key areas where resolution can k
improved over California Division of Mine and Geology Maps and other availab
research sources.
Overlay the slope gradient map (Task 3) with the engineering geologic materia
map.
Prepare interpretive maps of landslide susceptibility/slope instability, includin
coastal bluff stability.
0
0
0
The slope stability map to be prepared by Leighton, will show the relative susceptibilitic
of hillslope areas in the City, emphasizing slopes with inclinations greater than 40 percer
Because the failure style of nonearthquake-induced slope instabilities and landsliding w
be similar to that of earthquake-induced failure styles, one slope stability map will t:
prepared.
Task 1.8:
This will be a component of the engineering geologic materials maps and will take ini
consideration the susceptibility of coastal bluffs to both surface erosion and retreat dL
to wave action. Bedrock types, degree of fracturing, and slope stability will also I:
considered.
For the entire Carlsbad coastline, previous studies related to shoreline erosion and beac
retreat will be reviewed. An updated soil/coastal erosion map will be prepared L:
Leighton, indicating areas of increased historical erosion or areas of potential coast
erosion.
Task 1.9:
Areas of nonrippable materials will be mapped by Leighton. This will be an interpretah
map based on the identified geologic materials and their known ease or difficulty i
excavate.
Soil and Coastal Erosion
Areas of Nonrippable Material
3
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Task 1.1 0: Mudslides
Using the slope gradient determined from Task 3, and information on soil profiles c
canyon margins, Leighton will outline areas along slopes in the City susceptible i
mudslides. Such caution zones are designed to require a developer to conduct sedimei
transport studies to design debris basins and other debris and mudslide protecth
devices.
Task 1.1 1 :
The engineering geologic materials maps will be used to derive expansive ar
compressive units based on our experience and knowledge of the geologic units.
Task 1.1 2: Liquefaction Potential
As a first step in determining liquefaction potential, Leighton will identify saturate
cohesionless, Holocene sand and silt to demonstrate susceptibility of surficial deposil
to liquefaction, a process describing the liquid like behavior of alluvium under groun
shaking. The City is dissected by a number of drainages containing Holocene sediment:
including Buena Vista Lagoon, Agua Hedionda, and Batiquitos Lagoon, and is bounde
on the west by recent sands along the coast. Soil reports in CITY files, Regional Watc
Quality Control Board information, and other available subsurface data will be compile
for these areas to determine the following:
0
0
Expansive and Compressive Soils
Depth to perched and shallow ground water, up to 50 feet below the surface;
Texture (.01-.3mm) of the sediment and Standard Penetration Test (SPT) value
(N values of SPT between 0 and 25 blows); and
Thickness of the Holocene unit. 0
Leighton’s maps of engineering geologic materials and shallow ground water will t:
overlain to determine the distribution of alluvial areas susceptible to liquefaction. GIS dal
will be used to determine areas susceptible to liquefaction. GIS data will be used 1
determine areas of susceptible sediments that are shallow sloping (2 0.5 percent slopc
to predict areas susceptible to more damaging liquefaction potential failure styles (flov\
and lateral spreading). Last, the ground motion data and thickness will be used tl
determine liquefaction potential and severitv. These factors take into account th
probability that ground motion will be intense enough to initiate liquefaction, and the un
thick enough to cause significant ground failure at the surface.
Task 1.1 3: Landslides
Existing landslides will be identified utilizing available aerial photographs, existin
landslide identification studies conducted by the California Division of Mines and Geolog!
ElRs prepared for the CITY, and other relevant studies. Per discussion with the Cln
aerial photographs associated with the topographic base maps will be available fc
analysis.
4
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&
Task 1.1 4: Subsidence
Coastal subsidence, particularly in low-lying lagoonal areas, can be initiated by a larg
nearby earthquake. Leighton will investigate the potential for subsidence an
consequential inundation of near shore areas in Task 1.5 (Tsunami). The potential c
subsidence due to ground water withdrawal in areas of known existing wells will also k
evaluated.
Task 2: Mineral Resources Inventory
Leighton will conduct a comprehensive review of available published and unpublished literatui
to compile the location and type of commercial mining facilities which operate or have operate
in the City. The geotechnical database developed from Task 1 will allow Leighton and Associatc
to identify potential mineral resources within the City and discuss their possible commerci
quality. Leighton will provide the following:
A. Identify and map type, location and quality of resources, including oil, gas and geotherm
resources.
Map mineral resource areas classified or designated by the California Division of Minc
and Geology (CDMG). In addition, CITY files and County records will be reviewed fc
evidence of mining operations or mineral resources.
Identify and map existing mining areas, including oil, gas and geothermal wells.
Preparation of one comprehensive map of the City showing the location of all know
mineral resources or mining operations.
B.
C.
D.
Task 3: Slope Gradient Analvsis
Leighton will prepare a slope analysis map of the City. This map will identify slope areas in
mapped format that includes slope areas in excess of 40 percent, slopes that vary between 2
and 40 percent, and slope areas between 0 and 25 percent. Discussions with the CITY ha\
determined the available digital topological data contains 3-D coordinates (X, Y, Z). Tt
intermediate contour information has not been shown when the area between two index contou
is too small to graphically show all of the contour information. Most of the areas of conflict, pi
CITY staff, appear to occur at a 40 percent or greater slope. A further review of the digit
topological data will be performed to determine the best course of action to generate the slor
analysis.
David Evans and Associates will use the GIS to computer generate the slope analysis. Tk
computer-generated slope analysis will be accomplished using a Triangular Irregular Networkir
(TIN) process. The TIN process uses the contour data to generate a 3-D representation of tt
City.
Task 4:
As part of this task, Leighton will develop catastrophic dam failure inundation maps. Informatic
will be obtained from various sources including the Division of Safety of Dams, Feder
Emergency Management Agency (FEMA) studies, and owners/managers of the Calavera Dar
Catastrophic Dam Failure Analysis
5
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li
Squires Dam, and San Marcos Dam. Based on this information, Leighton will present areas (
potential inundation in a mapped format and data entered into the GIS system. Whei
information is not available, flooding will be modeled.
Existing and proposed land uses in the inundation path will be identified. A database I
dependent or immobile populations and other critical facilities that currently lie in the path will t:
created for delivery to the CITY. Leighton will recommend incompatible land uses for futui
development proposed in such zones.
Task 5:
For the purpose of demonstration maps, DEA will provide the required GIS support services ’
Leighton and Associates. DEA will use in-house ARC/INFO systems to provide the requirc
maps. DEA currently uses ARC/INFO on IBM 386 PC’s and Spare workstations. The followir
mapping exhibits will be generated.
Preparation of Demonstration Maps
0
0
0 Seiches
0 Tsunamis
0 Seismically Induced Dam Failure
0 Slope Instability
0
0 Areas of Nonrippable Soils
0 Mud Slides
0 Expansive/Compressive Soils
0 Liquefaction Potential
0 Landslides
0 Subsidence
0 Land-Use Compatibility Maps
0
0 Existing Mining Area Locations
0 Slope Analysis Maps
Known Active and Potentially Active Faults
Seismically Induced Ground Shaking and Surface Rupture
Area Subject to Soil Erosion, including Coastal Erosion
Inventory of Mineral and Soil Resources
DEA will work closely with the CITY and Leighton and Associates to generate the requirc
ARC/INFO mapping exhibits. The mapping portion of the project will consist of the followir
tasks:
0 Refine the mapping requirements
0
0
0
0
0
0
Review existing paper maps and digital topological data
Define a GIS database structure
Enter the required mapping information into the ARC/INFO system
Prepare and plot the mapping exhibits
Deliver plots and digital information to the CITY
Assist CITY staff to load digital data on their GIS
Leighton and Associates will perform the required analysis for the project except for the slol
analysis, which will be generated by DEA. The digital topological data provided by the CITY \n
be entered into DEA’s GIs. DEA will provide Leighton and Associates with computer-generatt
plots of the topological information showing roads, road names, contours, elevations, el
6
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L
Leighton and Associates will highlight the specific information on the plots and provide DEA wii
a product ready to be entered into the GIs. The mapping information will be entered into the GI
using large digitized tables. GIS technicians will digitize the mapping information into tt
appropriate layers, ARC/INFO coverage. GIS specialists will concentrate on entering tt-
attribute/textual information and generating the required mapping exhibits. This procedure w
be used to generate all of the required map exhibits, except for the seismically induced grour
shaking and slope analysis.
Leighton and Associates will use a computer program to determine the induced ground shakir
based on the bedrock types and earthquake magnitude, and provide DEA with a computer fi
containing the results. The results of the computer program will be entered into the GIS i
graphically show the affected areas.
The final deliverables will include 1 inch = 1000-foot scale maps of each required mappir
exhibit and a magnetic tape and/or floppy disks of the ARC/INFO data. DEA will deliver the da
in standard drawing exchange format, DFX. However, since the CITY and DEA have direct
compatible ARC/INFO systems, the digital data could be delivered in ARC/INFO Export form:
The Export format is the standard file structure used to transport digital information betwec
ARC/INFO systems. The Export format also permits all attribute information entered into the GI
to remain intact. DEA will also assist the CITY in installing the generated digital mappir
information onto their GIs.
Task 6: Land-Use Compatibilitv Matrix
This task will be formulated utilizing the geotechnical data base developed in Task 1 and tt
manual of guidelines for review of development proposals which will be prepared as part of Ta:
8. The land-use compatibility map and matrix will identify and rate potential areas of geotechnic
risk and assign appropriate levels of investigation with respect to the type of developmei
planned.
Task 7: Review and Recommend Changes to Existina Geotechnical Policies, Ordinance
as well as the Geotechnical Portion of the Safetv Element of the General Plan
Leighton will review all pertinent existing ordinances, codes, policies and guidelines for adequac
in meeting State Law as well as meeting the needs of the City. Leighton will meet with City st:
to discuss the issues and will then prepare a report recommending revisions and additions i
the City’s existing geotechnical policies, ordinances, as well as the geotechnical sections of tt
Safety Element of the General Plan. These recommendations will address developmei
standards for projects along faults, areas of unstable soil conditions, areas of known miner
resources, and areas subject to coastal erosion, etc. Revisions will be submitted in a form
whereby deletions are lined through and additions are in bold typeface. The first draft will k
submitted to City staff, the development community and other interested parties. The draft rn
be revised once with agreed upon changes. The recommended revised ordinances and revise
General Plan Element sections will be delivered to the City in City of Carlsbad ordinance ar
General Plan format.
Task 8:
This task is supportive and integral to the success of the development standards. Without
competent technical review, even the most stringent development standards are renderc
ineffective. Preparing a manual for the CITY to use in the review of technical developme
studies will standardize that process and provide a basis from which to regulate profession
Manual of Guidelines for Review of Development Proposals
7
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i
practice, and ultimately enhance public safety. To prepare the manual, Leighton will format tk
City of Carlsbad manual in a similar manner to that of the City of San Diego, including extensij
graphics and additional issues such as blasting. Development standards for coastal bluff are:
will be formulated. The manual will also include the types of filed studies which the City shou
require for evaluating development proposals faced with each geotechnical risk factor; tt
submittal requirements for each study; set out standard alternative mitigation techniques to aba
existing or potentially adverse conditions. The manual will also address the blasting 1
nonrippable soils and establish standards and programs for blasting within areas of habitab
buildings, areas with structures of any type, and areas devoid of structures.
In addition to the review manual, Leighton will prepare a small information-oriented booklet. Tt
booklet will explain the geologic conditions of Carlsbad, how they impact the homeowner, dangf
signals, and mitigation techniques of which a property owner should be aware. This brief booklc
entitled "The Geologic Story of Carlsbad; What Does it Mean for You?", will be written i
nontechnical terms, will be well illustrated, will include seismic risk and safety tips, and may b
distributed over the counter.
Task 9: Deliverable Products
Task 9.1 : First Draft
Upon completion of the above tasks, Leighton and Associates will compile and subrr
the first draft of the geotechnical portions of the Zoning Ordinance. The first draft rep0
would contain the demonstration maps and all supporting analytical statements describe
in the scope of work. The first draft submittal will include the following:
A. Individual and combined reproducible mylar maps at 1 inch = 1000 foot scale, c
the following:
0
0 Seiches
0 Tsunamis
0 Seismically induced dam failure
0
0 Existing mining area locations
0
Known active and potentially active faults
Inventory of mining area locations
Slope analysis indicating 40% slopes with City boundaries.
B. Individual and combined reproducible mylar maps at 1 inch = 400 foot scale, (
the following:
0
0 Slope instability
0
0 Areas of nonrippable soils
0 Mud slides
0 Expansive/Compressive Soils
0 Liquefaction potential
0
0 Subsidence
Seismically induced ground shaking and surface ruptures.
Areas subject to soil erosion, including coastal erosion
Landslides (developed and undeveloped areas)
8
e 0
.t
1
0 Land-use compatibility
0 Slope analysis of slopes 0-15%, 25-40%, and 40+%
C. Land-use compatibility matrix
D.
E.
F.
G.
H.
Analysis of flooding due to dam failure
Geotechnical portions of the Zoning Ordinance
Manual of guidelines for review of development proposal
The Geologic Story of Carlsbad
Digital files of the following items, in ARC/INFO format:
0
0
0 Seiches
0 Tsunamis
0 Seismically Induced Dam Failure
0 Slope Instability
0
0 Areas of Nonrippable Soils
0 Mud Slides
0 Expansive/Compressive Soils
0 Liquefaction Potential
0 Landslides
0 Subsidence
0 Land-Use Compatibility Maps
0
0 Existing mining Area Locations
0 Slope Analysis Maps
Known Active and Potentially Active Faults
Seismically Induced Ground Shaking and Surface Ruptures
Area Subject to Soil Erosion, including Coastal Erosion
Inventory of Mineral and Soil Resources
Task 9.2:
Subsequent to the CITY’S review of the first draft report, Leighton and Associates ar
DEA will work closely with the CITY to incorporate the desired revisions and commen
into the second draft submittal. We anticipate only minor revisions will be necessary aft
the CITY’S review of the second draft. As such, Leighton and Associates has budgetc
fees to prepare two drafts prior to the submittal of the final product. Provided the CI1
reviews are conducted in a prompt manner, we anticipate that all work will be complete
within approximately six months.
Second Draft and Final Product
Task 10: Reproduction Work
With the exception of the reproduction costs to prepare and review all draft documen
prepared by Leighton and Associates, specific funds have not been allocated in tt-
Leighton and Associates Contract for final document reproduction work. Costs for tk
9
e 0 \*
>
reproduction of final maps, final reports, the recommended revised geotechnical portic
of the Zoning Ordinance, the guidelines manual, and the information booklet have be(
estimated herein for budgetary purposes only. The actual reproduction work will be dot
by the City's vendor of choice.
Section 10.1
A.
Deliverable Products to the City
The following documents are to be provided in Wordperfect format (or translatah
format) on a 3.50" disk and one (1) camera-ready master hard-copy, for black an
white copies:
1.
2. Appendices to above document.
3.
4.
Final draft of the geotechnical portions of the Zoning Ordinance.
Guidelines manual to be used for the review of technical developme
standards, submittal requirements, and mitigation techniques.
Information booklet (The Geologic Story of Carlsbad; What Does It Me:
For You?)
AML:rvo:lh:w
Leig hscp.t
10
. ATTACHMENT “B”
i f.
April 26, 1991
(Revised July 22, 1991)
Pro] ec t No. 891 0298-
To: City of Carlsbad
Planning Department
2075 Las Palmas Drive
Carlsbad, California 92009-4859
Attention: Ms. Adrienne Landers, Senior Planner
Subject: Revised Cost Proposal
Geotechnical Hazard Analysis and Mapping Study
Carlsbad, California
In accordance with your request, we are herewith submitting our revised cost proposal for t
Geotechnical Hazard Analysis and Mapping Study. This cost estimate has been based on the revis
scope as discussed with you on July 16, 1991. A copy of that scope will be included as part of t
contract documents. The cost for each individual task is summarized below.
Task Description cost
1 Identification and Hazard Mapping $16,250.00
2 Mineral Resources Inventory 1,592.00
3 Slope Gradient Analysis 3,572.00
4 Dam Inundation Analysis 2,692.00
5 Preparation oE Demonstration Maps 17,192.00
6 Land-Use Compatibility Matrix 7,168.00
7 Geotechnical Policies and Ordinances 8,245.00
8 Development Guidelines Manual 13,295.00
9 Deliverable Products 23,425.00
Total Cost* $93,431.00
Supplies will be billed on a cost plus 15 percent basis and will
be billed separately from this contract,
*
3934 MURPHY CANYON ROAD, SUITE B205, SAN DIEGO, CALIFORNIA 92123 (619) 292-8030 (800) 447-2
FAX (619) 2924
e e 8910298 . ._.
!
A breakdown of the estimated costs for each individual task is attached as Figure 1.
With regard to the City of Carlsbad Standard Contract, we have reviewed these documents and ag
to the terms and conditions.
We are looking forward to working with the City on this challenging and rewarding project and
prepared to commence work immediately upon receiving authorization to proceed. If you have ,
questions, please contact this office.
Respectfully submitted,
LEIGHTON AND ASSOCIATES, INC. 4- Michael R. Stewart, CEG 1349
Chief Geologist
L-
Stan Helenschmidt, GE 2064
Chief Engineermanager
Attachment:
Distribution: (2) Addressee
Figure 1 - Project Cost Schedule
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