HomeMy WebLinkAboutC2019-613 - 11/4/2019 - NA TASK ORDER NO. 1
This Task Order pertains to a Master Services Agreement for Geotechnical and Construction Materials Testing
by and between City of Corpus Christi,Texas(City)and Terracon Consultants, Inc., (Lab)dated July 31,2019
by Motion No. M2019.114(Agreement). Lab shall perform services on the project described below as provided
in this Task Order and in the Agreement. This Task Order shall not be binding until it has been properly signed
by both parties. Upon execution, this Task Order shall supplement the Agreement as it pertains to the project
described below.
MSA PROJECT NUMBER/NAME: 19057A Geotechnical and Construction Materials Testing
TASK ORDER PROJECT NUMBER/NAME: 190578 Geotechnical and Construction Materials Testing
1. PROJECT DESCRIPTION: 18131A ONSWTP Clearwell No. 3
2. SCOPE OF SERVICES—GeoTech and/or Construction Material Services to observe, test and report for
the 18131A ONSWTP Clearwell No. 3 project, and as more fully described in Exhibit A.
3. COMPENSATION—The total amount not to exceed for this Task Order No. 1 only is$21,400.00.
This Task Order is approved, and Lab may proceed. All other terms and conditions of the Agreement remain
in full force and effect.
CITY OF CORPUS CHRISTI TERRACON CONSULT , INC
opm�y.pn.e ey�.n eemnas
Encroonng
�.-�/n� �N nvl.11 EertwN..4
Ve
Date
201911 aNMz. M 11-1-19
Jeff H. Edmonds, P.E Date Tom Ba efk r Date
Director of Engineering Services Office Manager
Terracon Consultants, Inc.
3606 WOW Rd., Corpus Christi, TX 78413
(361)420-6023 Office
tom.barker@terracon.com
Task Order No.1
Page 1 of 3
SCANNED
Accounting Unit: 4096-041
Account: 550920
Activity: 18131-A-4096-EXP
Account Category: 50920
Fund Name: Water 2015 CIP
Amount: $21,400.00
Task Order No. 1
Page 2 of 3
TASK ORDER FUNDING REQUEST FORM
CONTRACT MSA#AND TITLE 19057A Geotechnical and Construction Materials Testing(TERRACON)
TASK ORDER PROJECT#/TITLE 19057B Geotechnical and Construction Materials Testing(TERRACON)
REQUESTING DEPARTMENT:
FUND NAME/FUND#-ME: ACCOUNT: ACTIVITY:
4098-041 550920 18131-A-4098-EXP
CONSULTANT:Terracon Consultants,Inc.(TERRACON)
TASK ORDER#: 1
SCOPE OF WORK SEE PROPOSAL
TASK ORDER IS FOR PROJECT(S)LISTED BELOW:
PROJECT# FEE PROJECT NAME
18131A $21,400 ONSWTP Clearwell No.3
S21,400 Grand Total
1J Francis,P.E.
PM PRINT NAME:
Larijai FrancisDigita"signed bYLa"
Francis Date:2019.11.01
16:0723-05'00'
SIGNATURE:
11/1/2019
DATE:
Task Order No. 1
Page 3 of 3
September 24, 2019 lerracon
City of Corpus Christi
1201 Leopard Street
Corpus Christi, TX 78401
Attn: Mr. Marcus Flores
Engineering Services Department
P: 361-826-3528
E: MarcusF@cctexas.com
Re: Proposal for Geotechnical Engineering Services
Proposed ONSWTP Clearwell No. 3 Tank (18131A)
Leopard Street and Five Points Rd.
Corpus Christi, Texas
Terracon Proposal No. PCD195015
Dear Mr. Flores:
In response to your email dated September 18, 2019, Terracon Consultants, Inc. (Terracon)
appreciates the opportunity to submit this proposal to provide geotechnical engineering services
for the above referenced project. The purpose of this study will be to evaluate the pertinent
geotechnical conditions at the site and to develop geotechnical parameters, which will assist in
the design and construction of the proposed tank. We understand that we have been chosen
to provide these services for this publicly funded project. Therefore, by providing cost
information we are in compliance with the Texas Professional Services Procurement Act.
This proposal outlines our understanding of the project and scope of services and provides a
lump sum fee for our services, for total fee of$21,400.
A. PROJECT INFORMATION
Site Location
ITEM DESCRIPTION
This project will be located near the intersection of Leopard Street and
Location Five Points Rd. inside O.N. Stevens Water Treatment Plant in Corpus
Christi, Texas.
Current ground cover Bare soil and gravel fill (assumed).
Existing topography Based on the review of the available aerial image, the site has been
graded and assumed to be relatively level.
Terracon Consultants,Inc. 3606 WOW Road,Corpus Christi,Texas 78413 Exhibit A
P (361) 420 6000 F (361) 420 6001 terracon.com Texas Professional Engineers No.3272 Page 1 of 5
Environmental 111 Facilities 111 Geotechnical ! Materials
Geotechnical Engineering Report lrerracon
Proposed ONSWTP Clearwell No. 3 Tank _ Corpus Christi, Texas
September 24, 2019 Terracon Proposal No. PCD195015
Project Description
ITEM DESCRIPTION
Water Tank
One new water tank will be constructed. Inside Diameter (ID) of the
proposed tank will be approximately 322 feet. Total capacity of the tank
will be about 10 MG. The maximum height of the stored water is about
16.5 feet.
The proposed foundation system is a circular prestressed tank foundation
Tank Foundation with thickened perimeter footing. The roof will be either a column
supported flat slab or a free-spanning dome.
Bearing Pressure The anticipated contact pressures are in between 1,000 to 1,500 psf.
Finished Floor Elevation Not available at the time of the proposal.
Should any of the above information or assumptions be inconsistent with the planned construction,
please let us know so that we may make any necessary modifications to this proposal.
B. SCOPE OF SERVICES
The services to be provided by Terracon are summarized in the following paragraphs.
Field Program — Based on the proposed project and a review of the selected tank manufacturer
guidelines, we will perform a total of 9 borings.
Structures No.of Borings Approximate Depth 1,ft.
Concrete Storage Tank(Center) 1 60
Concrete Storage Tank(Intermediate) 3 30
Concrete Storage Tank(Perimeter) 5 30
1 Below existing grade.
The borings will be performed to obtain soil samples for soil classifications. Sampling will be in
general accordance with industry standard procedures wherein Shelby tube samples or split-
barrel samples are obtained. Samples will be obtained at intervals of five feet. We will observe
and record groundwater levels during and after drilling. Once the samples have been collected
and classified in the field, they will be placed in appropriate sample containers for transport to
our laboratory.
The drilling services for this project will be performed by a drilling subcontractor under
Terracon's direction. Our fee is based on the site being accessible to our conventional
two-wheel drive truck-mounted drilling equipment. Additional costs may result if this is not the
case.
Exhibit A
Page 2 of 5
Geotechnical Engineering Report lrerracon
Proposed ONSWTP Clearwell No. 3 Tank - Corpus Christi, Texas
September 24, 2019 Terracon Proposal No. PCD195015
Conditions/Items to be provided by Client: Items to be provided by the client include the right of
entry to conduct the exploration and an awareness and/or location of any private subsurface
utilities existing in the area. We will contact Texas811 for location of utilities in public
easements. Location of private lines on the property is not part of the Texas811 or
Terracon scope. All private lines should be marked by others prior to commencement of
drilling.
Terracon will take reasonable efforts to reduce damage to the property, such as rutting of the
ground surface. However, it should also be understood that in the normal course of our work
some such disturbance could occur. We have not budgeted to restore the site beyond backfilling
our boreholes. If there are any restrictions or special requirements regarding this site or
exploration, these should be known prior to commencing field work.
Our services do not include services associated with site clearing, wet ground conditions, tree or
shrub clearing, damage of existing crops / landscape or location of underground utilities beyond
contacting Texas811. If such conditions are known to exist on the site, Terracon should be
notified so that we may adjust our scope of services and fee, if necessary.
For safety purposes, all borings will be backfilled with soil cuttings and bentonite chips
immediately after their completion and subsurface water observation if any encountered during
drilling. Excess auger cuttings would be disposed of on the site.
Laboratory Testing — The samples will be tested in our laboratory to determine physical
engineering characteristics. An experienced geotechnical engineer will review the boring logs
and samples. Laboratory tests will be conducted on representative samples to evaluate the
pertinent engineering properties of the materials encountered. The laboratory testing is planned
to include:
Soil Classification —ASTM D 2487
Grain Size Distribution, Sieve Analysis -ASTM D 422
Dry Unit Weight ASTM D 2937
Moisture content measurements ASTM D 2216
Atterberg Limits ASTM D 4318
Unconfined compressive strength ASTM D 2166 (for undisturbed soil, if samples are
recovered with Shelby tube)
Engineering Analysis and Report — The results of our field and laboratory programs will be
evaluated by a professional geotechnical engineer licensed in the State of Texas. Based on the
results of our evaluation, an engineering report will be prepared that details the results of the
testing performed, provides logs of the borings, and a diagram of the site/boring layout. The
report will include the following:
Exhibit A
Page 3 of 5
Geotechnical Engineering Report lrerracon
Proposed ONSWTP Clearwell No. 3 Tank Corpus Christi, Texas
September 24, 2019 Terracon Proposal No. PCD195015
Computer generated boring logs with soil stratification based on visual soil classification;
Summarized laboratory data;
Groundwater levels observed during and after completion drilling;
Boring location plan;
Subsurface exploration procedures;
Encountered soils conditions;
Seismic Site Classification based on 2018 IBC;
Recommendation for below grade walls
Recommendation for pavement types and thicknesses
Tank pad preparation to reduce the soil movement and
Appropriate foundation type and recommendation to support the planned tank.
Our reports will provide general comments and applicable recommendations regarding
construction methods, sequences, and potential difficulties that may arise during overall
construction as it relates to the soil aspects of this project.
Schedule - We can generally begin the field exploration program within one week if site and
weather conditions permit. We estimate the final geotechnical report can be completed within
about four weeks after the soil borings are completed. In situations where information is needed
prior to submittal of our report, we can provide verbal information or recommendations for
specific project requirements after we have completed our field and laboratory programs.
C. COMPENSATION
Based upon our understanding of the site, the project as summarized and our planned scope of
services outlined in the proposal, our base fee is shown in the following table:
------ ------------
Task Lump Sum Fee
Subsurface Exploration, Laboratory Testing, Geotechnical Consulting&Reporting $18,900
Additional services not part of the base fee include the following:
Additional Services Lump Sum Fee Initial for
Authorization
Private Utility Locate Service ' $2,500
Construction Materials Testing Services TBD
1 If the owner/client is unable to accurately locate private utilities, we can subcontract a private utility locating
firm and/or utilize geophysical equipment, if necessary. The detection of underground utilities is dependent
upon the composition and construction of utility lines. Some utilities are comprised of non-electrically
conductive materials and may not be readily detected. The use of a private locate service does not relieve the
owner of their responsibilities in identifying private underground utilities.
Exhibit A
Page 4 of 5
Geotechnical Engineering Report lierracon
Proposed ONSWTP Clearwell No. 3 Tank Corpus Christi, Texas
September 24, 2019 Terracon Proposal No. PCD195015
Our scope of services does not include services associated with site clearing, wet ground
conditions, tree or shrub clearing, or repair of/damage to existing landscape. If such services are
desired by the owner/client, we should be notified so we can adjust our scope of services.
Should it be necessary to expand our services beyond those outlined in this proposal, we will
notify you, then send a supplemental proposal stating the additional services and fee. We will
not proceed without your authorization, as evidenced by your signature on the Supplement
Agreement form.
We are available to review earthwork and foundation related portions of project drawings and
specifications and to confer with the design team after submittal of our report. Such follow-up
services are beyond the scope of this proposal and would be charged at $150.00 per hour for a
Project Engineer and $200.00 per hour for a Principal/Senior Engineer. We will obtain your
specific authorization prior to providing any additional services.
D. AUTHORIZATION
This proposal may be accepted by executing the attached Agreement for Services and returning
a copy to Terracon. Project initiation may be expedited by emailing or faxing a copy of the
signed Agreement for Services to 210-641-2124. Unless requested otherwise, a hard copy of
this proposal will not be mailed to you.
The terms, conditions and limitations stated in the Agreement for Services (and sections of this
proposal incorporated therein), shall constitute the exclusive terms and conditions and services
to be performed for this project. This proposal is valid only if authorized within 90 days from the
proposal date.
We appreciate the opportunity to provide this proposal and look forward to the opportunity of
working with you. If you have any questions regarding this proposal, please feel free to contact
the undersigned.
Sincerely,
Terracon Consultants, Inc.
(Firm Registration: TX F3272)
•
Tariqul Anwar, P.E. regory P. Stieben, P.E., D.GE
Project Engineer Senior Consultant
TA/GPS/mhb—PCD195015
Attachment: Agreement for Services
Exhibit A
Page 5 of 5