HomeMy WebLinkAboutContract 50006-A1 CITY
CONTRACT NOoYS�[,t,�(�
AMENDMENT No.1
TO CITY SECRETARY CONTRACT
WHEREAS, the City of Fort Worth (CITY) and Alan Plummer
Associates, Inc. , (ENGINEER) made and entered into City
Secretary Contract No. 50006, (the CONTRACT) which was
authorized by M&C C-28464 on the 7th day of November, 2017
in the amount of $688,037 . 00; and
WHEREAS, the CONTRACT involves engineering services for
the following project:
North Holly Water Treatment Plant Sedimentation Basin
Sludge Removal System Replacement; and
WHEREAS, it has become necessary to execute Amendment
No. 1 to the CONTRACT to include an increased scope of work
and revised fee.
NOWTHEREFORE, CITY and ENGINEER, acting herein by and
through their duly authorized representatives, enter into the
following agreement, which amends the CONTRACT:
1 .
Article I of the CONTRACT is amended to include the
additional engineering services specified in a proposal dated
May 23, 2018 a copy of which is attached hereto and
incorporated herein. The cost to City for the additional
design services to be performed by Engineer total $16,005 . 00.
2 .
Article II of the CONTRACT is amended to provide for an
increase in the fee to be paid to Engineer for all work and
services performed under the Contract, as amended, so that the
total fee paid by the City for all work and services shall be
an amount of $704,042 .00 .
3 .
All other provisions of the Contract, which are not
expressly amended herein, shall remain in full force and
effect.
_a �_ OFFICIAL.RECORD
o 4 CITU'SECRETARY
9��y
� FT.IIVOR7'li9 TX
Page -1-
EXECUTED and EFFECTIVE as of the date last written by a
signatory, below.
APPROVED : ENGINEER
City of Fort Worth Alan Plummer ssoci tes, Inc.
Jesus J. Chapa David A. budaA, P.E.
Assistant City Manager Senior Associate
DATE: 2 (` DATE: - �
APPROVAL RECOMMENDED:
bbl o �
°r Chris Harder, P.E.
Acting Director, Water Department
APPROVED AS TO FORM AND LEGALITY: M&C: N/A
Contract Compliance Manager:
By signing, I acknowledge that I am the person responsible for the
monitoring and administration of this contract, including ensuring
all performance and reporting requirements.
Name of Employee
itle: ProA ct Manager
Date:
Douglas W. Black
Senior Assistant City Attorney
ATTEST: � SORT/w
Mary J. r .�
City Secretary f * ` := Form 1295 No. N/A
AS M&C No. N/A
M&C Date: N/A
OFFICIAL RECORD
CITY SECRETARY
Page -2- F,,WoRtm,TX
ALAN s
ASSOCIATES, INC.
ENVIRONMENTAL
ENGINEERS AND SCIENTISTS
0318-058-01
May 23, 2018
Ms. Dena Johnson
Project Manager
City of Fort Worth
200 Texas Street
Fort Worth,Texas 76102-4397
Re: North Holly Water Treatment Plant
Sedimentation Basin Sludge Removal System Replacement(City Project No. 02328)
Contract Amendment No. 1 (Revision 1)
Dear Ms.Johnson:
The purpose of this letter is to request authorization for$16,005.00 in Special Services for the
above referenced project. I have enclosed a Scope of Services for providing geotechnical
engineering services and additional structural engineering services.
The geotechnical engineering services are required for providing foundation design
recommendations for the collection mechanism center pier design and for the valve vault.The
structural engineering services are for evaluation of the existing tube settler support framing to
determine the approximate member sizes and configuration.
Unfortunately, no records are available in the City's files on previous geotechnical investigations
at the site, and the tube settler equipment shop drawings do not provide sufficient information for
the structural support design.
The following table summarizes the original contract and the requested amendment.
Item ,Amount Notice to Proceed
Original Contract $688,037 December 18,2017
Amendment 1
Geotechnical Services $9,625
Additional Structural Services_ $6,380
Total Cost $704,042
If you have any comments, please contact me.
Sincerely,
,ALA MEJA OCIATES, INC.
•
,A n avis,
1320 SOUTH UNIVERSITYDRlVE /AED
SUITE 300 Enclosures:Scope of Services
FORT WORTH,TEXAS 76107-5737
PHONE:617.W6.1700 cc: Dr.Christopher Boyd, P.E.,Alan Plummer Associates, Inc.
FAX:817.870.2536 F:1projects103181058-0113-0 AdministratloW.1 CONTRACT_4GREEMENT13-1-1 0ONTRACTS1Amendment 1Vlmendment 1_02328 Revision 1.docu
www.apiienv.eom
TBPE Firm No.13
CONTRACT AMENDMENT NO. 1
CITY OF FORT WORTH
NORTH HOLLY WATER TREATMENT PLANT
SEDIMENTATION BASIN SLUDGE REMOVAL SYSTEM REPLACMENT
GEOTECHNICAL-AND ADDITIONAL STRUCTURAL SERVICES
SCOPE OF SERVICES
May 23,2018
I. Geotechnical Services
a. Geotechnical field investigation, laboratory testing, and engineering design
recommendations for the sedimentation basin mechanism center pier foundations and
the valve vault as described in the attached scope of services from Terracon.
II. Additional Structural Services
a. Evaluation of the existing tube settler support framing to determine the approximate
member sizes and configuration as described in the attached scope of services from JQ
Infrastructure.
F:%projects1031W58 012-0 AdrdnistrationZ-1 CONTRACT_AGREEMENM-1-1 CONTRACT&Amendment 1Wmendment 1_02328_Revision t.dom Page 2 of 2
Proposal for Geotechnical Engineering Services Irerracon
North Holly WTP Clarifier Improvements■ Fort Worth, Tarrant County,Texas
March 2, 2018■ Terracon Proposal No. P95185030
EXHIBIT B - SCOPE OF SERVICES
Our proposed scope of services consists of field exploration, laboratory testing, and
engineering/projebt delivery. The following sections provide an overview of the work scope for
each of these aspects of the project.
Field Exploration
Our field exploration work includes the drilling and sampling of exploratory soil borings. Alan
Plummer prescribed three borings.
The following boring schedule is planned based on the site plan:
Number of Borings Planned Boring Depth' Planned Location
2 20 feet of penetration into bedrock or Planned pump station area and adjacent
maximum depth of 60 feet to existing sedimentation tanks
1. Below ground surface
Boring Layout and Elevations: We use handheld GPS equipment to locate borings with an
estimated horizontal accuracy of+/-20 feet. Field measurements from existing site features may
be utilized. If available, approximate elevations are obtained by interpolation from a site specific,
surveyed topographic map, provided by others. Land surveying of the boring locations are not
included in this proposal.
Subsurface Exploration Procedures: The borings will be sampled using split-spoon sampling
devices consistent with ASTM D1586 and thin-walled sampling devices consistent with ASTM
D1587. Sample intervals will be as necessary to collect the required data for design, but in no case
greater than 5 feet on center.The load carrying capacity of bedrock if encountered will be evaluated
in the field using the Texas Department of Transportation's (TxDOT) Cone Penetration Test.
Our exploration team prepares field boring logs as part of standard drilling operations including
sampling depths, penetration distances, and other relevant sampling information. Field logs include
visual classifications of materials encountered during drilling, and our interpretation of subsurface
conditions between samples. Final boring logs, prepared from field logs, represent the geotechnical
engineer's interpretation, and include modifications based on observations and laboratory tests.
The field exploration will also include observations for groundwater. This will occur during the
exploration program while the boreholes are being advanced. No provisions have been made to
collect water level data other than the observations made during the advancement of the borings.
Responsive■ Resourceful n Reliable EXHIBIT B-SCOPE OF SERVICES 1 of 5
Proposal for Geotechnical Engineering Services Irerracan
North Holly WTP Clarifier Improvements■ Fort Worth, Tarrant County,Texas
March 2, 2018■ Terracon Proposal No. P95185030
Property Disturbance: We backfill borings with auger cuttings after completion. Our services do
not include repair of the site beyond backfilling our boreholes. Excess auger cuttings are
dispersed in the general vicinity of the borehole. Because backfill material often settles below the
surface after a period, we recommend boreholes are checked periodically and backfilled, if
necessary.We can provide this service, or grout the boreholes for additional fees, at your request.
If there are any restrictions or special requirements regarding this site or exploration, pleaser
provide them with your acceptance of this proposal.
Laboratory Testing
The project engineer reviews field data and assigns various laboratory tests to better understand
the engineering properties of various soil and rock strata. Exact types and number of tests cannot
be defined until completion of field work. Procedural standards noted below are for reference to
methodology in general. In some cases, local practices and professional judgement require
method variations. Standards noted below include reference to other related standards. Such
references are not necessarily applicable to describe the specific test performed.
■ ASTM D2216 Standard Test Methods for Laboratory Determination of Water (Moisture)
Content of Soil and Rock by Mass
■ ASTM D4318 Standard Test Methods for Liquid Limit, Plastic Limit, and Plasticity Index
of Soils
■ ASTM D422 Standard Test Method for Particle-Size Analysis of Soils
■ ASTM D2166/D2166M Standard Test Method for Unconfined Compressive Strength of
Cohesive Soil
■ A STM D1140 Standard Test Method for Determining the Amount of Material Finer than
75-Nm (No. 200) Sieve in Soils by Washing
■ ASTM D4546 Standard Test Methods for One-Dimensional Swell of Soils
Our laboratory testing program often includes examination of soil samples by an engineer. Based
on the material's texture and plasticity, we describe and classify soil samples in accordance with
the Unified Soil Classification System (USCS).
-Safety
Terracon is currently not aware of environmental concerns at this project site that would create
health or safety hazards associated with our exploration program; thus, our scope considers
standard OSHA Level D Personal Protection Equipment(PPE) appropriate. Our scope of services
does not include environmental site assessment services, but identification of unusual or
unnatural materials encountered while drilling will be noted on our logs and discussed in our
report.
Responsive■ Resourceful a Reliable EXHIBIT B-SCOPE OF SERVICES 2 of 5
Proposal for Geotechnical Engineering Services Irerracon
North Holly WTP Clarifier Improvements; Fort Worth,Tarrant County,Texas
March 2,2018 i._ Terracon Proposal No. P95185030
Exploration efforts require borings into the subsurface, therefore Terracon complies with local
regulations to request a utility location service through Texas811, the local "one-call" service for
location of utilities in public easements. We consult with the owner/client regarding potential
utilities, or other unmarked underground hazards. Based upon the results of this consultation, we
consider the need for alternative subsurface exploration methods, as the safety of our field crew
is a priority.
Private utilities should be marked by the owner/client prior to commencement of field exploration.
Terracon will not be responsible for damage to private utilities that are not made aware to us. If
the owner/client is not able to accurately locate private utilities, Terracon can assist the
owner/client by coordinating or subcontracting with a private utility locating services. Fees
associated with the additional services are not included in our current scope of services, but is
provided in the Additional Service table in the Compensation section below and requires your
initial for authorization. The detection of underground utilities is dependent upon the composition
and construction of the utility line; some utilities are comprised of non-electrically conductive
materials and may not be readily detected. The use of a private utility locate service would not
relieve the owner of their responsibilities in identifying private underground utilities.
Site Access: Terracon must be granted access to the site by the property owner. By acceptance
of this proposal, without information to the contrary, we consider this as authorization to access
the property for conducting field exploration in accordance with the scope of services.
Engineering and Project Delivery
Results of our field and laboratory programs are evaluated by a professional engineer. The
engineer develops a geotechnical site characterization, performs the engineering calculations
necessary to evaluate foundation alternatives, and develops appropriate geotechnical
engineering design criteria for earth-related phases of the project.
Your project is delivered using our GeoReport system. Upon initiation, we provide you and your
design team the necessary link and password to access the website(if not previously registered).
Each project includes a calendar to track the schedule, an interactive site map, a listing of team
members, access to the project documents as they are uploaded to the site, and a collaboration
portal. A typical delivery process includes three basic stages:
Stage 1: Project Planning
Stage 2: Site Characterization
Stage 3: Geotechnical Engineering
When utilized, a collaboration portal documents communication, eliminating the need for long
email threads. This collaborative effort allows prompt evaluation and discussion of options related
Responsive Resourceful ,, Reliable EXHIBIT B•SCOPE OF SERVICES 3 of 5
Proposal for Geotechnical Engineering Services 1rerracon
North Holly WTP Clarifier Improvements t. Fort Worth,Tarrant County,Texas
March 2, 2018 x Terracon Proposal No. P95185030
to the design and associated benefits and risks of each option.With the ability to inform all parties
as the work progresses, decisions and consensus can be reached faster. In some cases, only
minimal uploads and collaboration will be required, because options for design and construction
are limited or unnecessary.This is typically the case for uncomplicated projects with no anomalies
found at the site.
When services are complete, we upload a printable version of our completed final geotechnical
engineering report, including the professional engineer's seal and signature, which documents
our services. Previous submittals, collaboration, and final report are maintained in our system
indefinitely. This allows future reference and integration into subsequent aspects of our services,
as the project goes through final design and construction.
The final geotechnical engineering report provides the following:
U Boring logs with field and laboratory data
Stratification based on visual soil (and rock) classification
Groundwater levels observed during and after completion of drilling
ki Site and Boring location plans
Subsurface exploration procedures
f. Description of subsurface conditions
�e Recommended foundation options and engineering design parameters; compression,
lateral, and uplift.
The presence and effect of expansive clays on floor slabs and flatwork will be discussed.
Methods of reducing the movements associated with expansive clays will be presented.
Seismic site classification
t, Subgrade preparation/earthwork recommendations
Below grade area construction and design recommendations
Additional Services
In addition to basic services noted above, the following services are often associated with
geotechnical engineering services. Fees for basic services noted above do not include the
following:
Review of Plans and Specifications;Our geotechnical report and associated verbal and written
communications will be used by others in the design team to develop plans and specifications for
construction. Review of the project plans and specifications is a vital part of our geotechnical
engineering services. This consists of review of project plans and specifications related to site
preparation, foundation, and pavement construction. Our review includes a written statement,
which conveys our opinions, related to the plans and specifications' consistent with our
geotechnical engineering recommendations.
Responsive i Resourceful Reliable EXHIBIT B-SCOPE OF SERVICES 4 of 5
Proposal for Geotechnical Engineering Services Irerracon
North Holly WTP Clarifier Improvements■ Fort Worth, Tarrant County,Texas
March 2, 2018■Terracon Proposal No. P95185030
Observation and Testing of Pertinent Construction Materials: Development of our
geotechnical engineering recommendations and report relies on an interpretation of soil
conditions. This is based on widely spaced exploration locations, and assuming construction
methods will be performed in a manner sufficient to meet our expectations, and is consistent with
recommendations made at the time the geotechnical engineering report is issued. We should be
retained to conduct construction observations, and perform/document associated materials
testing, for site preparation, foundation, and pavement construction. This allows a more
comprehensive understanding of subsurface conditions and necessary documentation of
construction, to confirm and/or modify (when necessary)the assumptions and recommendations
made by our engineers.
Perform Environmental Assessments: Our scope for this project does not include, either
specifically or by implication, an environmental assessment of the site intended to identify or
quantify potential site contaminants. If the client/owner is concerned about potential for such
conditions and/or contamination, an environmental site assessment should be conducted. We
can provide a proposal for an environmental assessment, if desired.
Responsive Resourceful Reliable EXHIBIT B.SCOPE OF SERVICES 5 of 5
too CLASS STREET 5UITE:t)!,DALLAS,TEXAS 75207 _
972 377 3'u POE
JQIEN610M
04.20.18
Mr. Alan Davis, PE
Alan Plummer Associates, Inc.
1320 South University Ave.,Ste.300
Fort Worth,TX 76107
Proposal—Structural Engineering Additional Services
City of Fort Worth—North Holly Water Treatment Plant
Sedimentation Basin Sludge Removal System Replacement
Dear Alan,
We are pleased to express our interest in providing structural engineering services, for the referenced
project and offer the following proposal for your consideration. This scope is an additional service to our
base contract.
We understand the scope of the additional services to be as follows:
Final Design Phase Services
• Structural evaluation of the existing tube settler support framing to determine the approximate
member sizes and configuration of the tube settler support framing. It is understood that the
existing support structure consists of round stainless steel columns and stainless steel trusses.
The information gathered is to be used for the design of modifications to the existing support
framing to accommodate the proposed circular sludge collector mechanisms. It is assumed that
the basins will be empty and clean at the time of the evaluation so that JQstaff has access to the
framing from the basin slab. In addition, a ladder or man lift will be provided to allow JQ staff
access to the trusses supporting the tube settlers.
• Coordination with the tube settler manufacturer to determine the loading on the support
structure due to the tube settlers.
• It is assumed that the truss configuration is in general conformance with the configuration shown
in the shop drawings for the tube settlers, provided by the City.
Exclusions
• Materials testing or strength testing.
• Confined space entries of any kind. Additional services are required to accommodate any
required entries identified during the course of the evaluation.
City of Fort Worth, Texas
Mayor and Council Communication
COUNCIL ACTION: Approved on 6/26/2018 - Ordinance No. 23287-06-2018
DATE: Tuesday, June 26, 2018 REFERENCE NO.: **C-28752
LOG NAME: 60NHWTPSBSRSRAIAPAIFUNDING
SUBJECT:
Adopt Appropriation Ordinance in the Amount of$36,000.00 for Increased Project Management Cost on
North Holly Water Treatment Plant Sedimentation Basin Sludge Removal System Replacement(COUNCIL
DISTRICT 9)
RECOMMENDATION:
It is recommended that the City Council adopt the attached appropriation ordinance reducing unallocated
receipts and appropriations and increasing project appropriations in the Water and Sewer Capital Project
2018 Fund in the amount of$36,000.00 from available funds for the purpose of funding North Holly Water
Treatment Plant Sedimentation Basin Sludge Removal System Replacement. (City Project No. CO2328)
DISCUSSION:
On November 7, 2017, Mayor and Council Communication (M&C C-28464), the City Council authorized
the execution of an Engineering Agreement with Alan Plummer Associates, Inc., in the amount of
$688,037.00 for the preparation of plans and specifications for the North Holly Water Treatment Plant
Sedimentation basin Sludge Removal System Replacement project.
This project requires additional funding for project management and to cover costs associated with
Amendment No. 1 in the amount of$16,005.00 for additional geotechnical services and structural services
on the project.
This project will have no impact on Water Department's operating budget.
The project is located in COUNCIL DISTRICT 9.
This M&C does not request approval of a contract with a business entity.
FISCAL INFORMATION /CERTIFICATION:
The Director of Finance certifies that upon approval of the above recommendation and adoption of the
attached appropriation ordinance, funds will be available in the Water and Sewer Capital Project Fund
2018 for the North Holly Water Treatment Plant Sedimentation Basin Sludge Removal System
Replacement Project. After this transfer, the available balance in Water and Sewer Capital Project Fund
2018 will be$817,812.00 for future capital projects.
Appropriations for North Holly Water Treatment Plant Sedimentation Basin Sludge Removal System
Replacement as depicted below:
FUND Existing Additional Project
Appropriations Appropriations Total*
(Water& Sewer Capital 1$750,000.00 $36,000.00 1$786,000.00
Project 2018 Fund 56014
Project Total $750,000.00 $36,000.00 $786,000.00
* Numbers rounded for presentation purposes.
FUND IDENTIFIERS (FIDs):
TO
Fund Department ccoun Project JProgram ctivi Budget Reference# moun
ID ID Year Chartfield 2
FROM
Fund Department ccoun Project Program ctivi Budget Reference# mount
ID ID Year Chartfield 2
CERTIFICATIONS:
Submitted for City Manager's Office by: Jay Chapa (5804)
Originating Department Head: Chris Harder (5020)
Additional Information Contact: Dena Johnson (7866)
ATTACHMENTS
1. 60NHWTPSBSRSRA1APAIFUNDING Map.pdf (Public)
2. 60NHWTPSBSRSRAIAPAIFUNDING FID Table (Dan).docx (CFW Internal)
3. 60NHWTPSBSRSRAIAPAIFUNDING 60 AO 18.docx (Public)
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