HomeMy WebLinkAbout50. Amendment #1 AgreementCity0
Oshkosh
MEMORANDUM
TO: Honorable Mayor and Members of the Common Council
FROM: Mark A. Rohloff, City Manager
DATE: June 4, 2020
RE: Amendment No. 1 to Professional Services Agreement for Subsurface
Exploration and Geotechnical Engineering Evaluation for the 2019 Capital
Improvements Program (CIP) / Professional Service Industries, Inc. (PSI)
(+$20,943.50)
An Engineering Services Agreement for subsurface exploration, soil classification, geotechnical
engineering, and construction recommendations for the proposed 2019 CIP with PSI was
reported to the Common Council on November 8, 2018. Additional services are required to
obtain the required information for the design of the West 28°h Avenue Pump Station upgrades.
The amendment includes obtaining additional information on one (1) site included in the
original agreement. Additional information is required to allow the City's Consultant, Jacobs
Engineering Group, complete the design of the upgrade to the West 281h Avenue Pump Station.
Staff has reviewed the amendment and the costs. The amount of this amendment is not to
exceed $20,943.50. This will raise the total agreement amount to $72,612.50. These costs will be
split between the Sanitary Sewer and Property Improvement CIP sections. Funding was
budgeted in both sections of the 2018 CII'.
Chapter 12 of the Municipal Code of the City of Oshkosh provides that professional services of a
specialized nature, including engineering services, may be procured without the use of formal,
sealed quotes. In accordance with Section 12-16 of the Code, I am hereby submitting this report
regarding this professional services amendment.
Approved,
Mark A. Rohloff
City Manager
h.Giec
1: \Engineering\2019 CONTRACTS\PSI 2019 Sub Inv\Mark R Memo -PSI CA #1 "-20.d.o Page 1 of 1
intertek
RECEIVED
OCT 31 2019
DEPT OF PUBLIC WORKS
OSHKOSH, WISCONSIN
Mr. Justin Gierach
City of Oshkosh Department of Public Works
215 Church Avenue
P.O. Box 1130
Oshkosh, Wisconsin 54903
Re: Proposal for Geotechnical Exploration
Proposed West 28th Street Lift Station
Oshkosh, Wisconsin
Dear Mr. Gierach,
PSI Proposal No.: PO -0094-290069-R-2
October 31, 2019
Professional Service Industries, Inc.
3009 Vandenbroek Road
Kaukauna, Wisconsin 54130
Phone: (920)-735-1200
Thank you for giving Professional Service Industries, Inc. (PSI), an Intertek Company, this
opportunity to propose our services. PSI is submitting this proposal to conduct a geotechnical
exploration for the proposed West 28th Street Lift Station in Oshkosh, Wisconsin. Presented
below is a review of furnished project information, along with our proposed scope of services
and fee information.
PROJECT UNDERSTANDING
Based on the information provided, it is understood that two soil borings are being requested
along West 28th Avenue for roadway and utility construction, and that two soil borings are being
requested adjacent to the existing lift station located along the south side of West 28th Avenue
for the construction of a new lift station. Based on the information provided by Jacobs, who is
the project engineer, it is understood that bedrock will likely be encountered at a depth of about
10 to 35 feet in the area of the existing lift station. It is understood that the proposed utility line
will consist of a force main and be installed beneath the creek crossing along West 28th Avenue
by directional drilling, which will have entry and exit bore pits. In addition, open trench/cut
installation maybe utilized from the proposed lift station to West 28th Avenue. No design details
for the proposed lift station, or for the proposed utility construction were available at the time of
proposal preparation.
SCOPE OF SERVICES
Lift Station
Per your request, PSI proposes to drill a total of two (2) soil test borings until auger refusal
depth, which is understood to be at a depth of about 10 feet for OS -2 and about 35 feet for OS -
1. Rock coring has been requested within the two lift station borings. It is understood that
approximately 30 feet of rock coring will be required for OS -2 and that 5 feet of rock coring will
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PSI Proposal No.: PO -0094-290069-R-2
October 31, 2019
Page 2
be required for OS -1 in order to extend the borings to the planned termination depth of 40 feet.
If bedrock is not encountered before a depth of 40 feet, PSI will contact Jacobs to
determine if additional drilling is required. In total, 45 feet lineal feet of drilling and 35 feet
of rock coring is proposed for the lift station borings. Upon completion, a piezometer will be
installed at OS -1. It is understood that the borings will be located, and the surface elevations
will be provided by the City of Oshkosh. As requested, 24-hour delayed groundwater
readings will be taken within the two lift station borings.
Per your request, after completion of boring OS -1 for the proposed lift station PSI will
contact Jacobs prior to setting the screen for the piezometer so Jacobs can confirm the
depth that the screen shall be placed at. The proposed piezometer will consist of the
installation of one (1) temporary 2 -inch diameter Schedule 40 PVC piezometer. The bottom of
the piezometer will consist ten feet of 0.010 slot screen, sand filter pack and bentonite annular
seal. The remaining portion of the piezometer will consist of Schedule 40 PVC riser. It is
understood that the surface of the piezometer will consist of a pro-top/stickup covers. Delayed
groundwater level readings have been requested at approximately 48 hours, 1 week, 2
weeks and 4 weeks after installation. PSI has not been requested to abandon the
piezometer following completion of its use and no cost for such is included herein.
It is understood that a staff geologist will be required to be on-site during the
performance of the borings and piezometer for the Lift Station project.
Per the request from Jacobs, laboratory tests will be conducted as shown in the below
table for soil and rock samples obtained from the lift station borings:
Test
Number of Tests
Mechanical Sieve Analysis
4
Hydrometer
4
Atterberg Limits
4
Moisture Content
10
Corrosion Suite H, Resistivity, Sulfate, Chloride
3
Rock Unconfined Compressive Strength and Unit Weight
4
West 28th Street
Per your request, PSI proposes to drill a total of two (2) soil test borings until auger refusal
depth, which is understood to be at a depth of about 10 feet, for the roadway and utility
construction along West 28th Avenue. Rock coring has been requested in order to extend the
borings to the planned termination depth of 20 feet. It is understood that approximately 20 feet
of rock coring will be required. If bedrock is encountered before the planned termination
depth of 20 feet, PSI will contact the City of Oshkosh to confirm that rock coring shall be
performed. In total, up to 20 lineal feet of drilling and 20 feet of rock coring is proposed for the
for the roadway and utility construction along West 28th Avenue. It is understood that the
borings will be located, and the surface elevations will be provided by the City of Oshkosh.
It is understood that a staff geologist will be required to be on-site during the
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performance of the borings for West 28th Street.
PSI Proposal No.: PO -0094-290069-R-2
October 31, 2019
Page 3
Per the request from Jacobs, laboratory tests will be conducted as shown in the below
table for soil and rock samples obtained from the West 28' Street borings:
Test
Number of.Tests
Mechanical Sieve Analysis
4
Hydrometer
4
Atterberg Limits
4
Moisture Content
10
Corrosion Suite H, Resistivity, Sulfate, Chloride
3
Rock Unconfined Compressive Strength and Unit Weight
4
General Drilling Information
If areas of extended fill or other unsuitable soils are encountered during field exploration
activities, boring depths may be extended until suitable subsurface soils are found. Where a
significant alteration to the scope of work may be warranted, prior authorization from the client
will be obtained.
It is anticipated that the site is not accessible with standard drilling equipment. Therefore, the
soil borings will be performed with an all -terrain (ATV) mounted rig drill rig utilizing continuous
flight hollow stem auger to advance the boreholes. Representative soil samples will be
obtained at 2'/2 -foot intervals. As an exception, soil samples will be continuously sampled
from OS -1. The samples will be secured by employing split -barrel sampling procedures in
general accordance with ASTM D-1586. Soil samples will be visually classified by a soils
engineer in general accordance with the Unified Soil Classification System. Borings greater
than 10 feet will be backfilled with bentonite upon completion. However, once backfilled and
surface patched, it is possible that the backfill within the borehole will settle when surface water
or groundwater enters the hole, thus causing the surface patch to fail. PSI cannot be
responsible for monitoring the condition of said boreholes; therefore, the condition of the
boreholes should be monitored by the property owner once PSI has demobilized from the site.
In addition, the soil cuttings generated from the soil borings will be disposed of at a
location determined by the City of Oshkosh, which is understood to be a few blocks
away from the project site.
Representative soil samples obtained during the field exploration program will be returned to
the laboratory for classification and a limited number of engineering properties tests. The
nature and extent of this laboratory testing program will be dependent up on the subsurface
conditions encountered during the field exploration program and may include testing selected
samples to evaluate the soils' moisture content, plasticity, grain size, and relative strength
characteristics.
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IBC SCOPE EVALUATION
PSI Proposal No.: PO -0094-290069-R-2
October 31, 2019
Page 4
Please note that the project site is located within a municipality that employs the International
Building Code (IBC) 2015 edition. As part of this code, the design of structures must consider
dynamic forces resulting from seismic events. These forces are dependent upon the magnitude
of the earthquake event as well as the properties of the soils that underlie the site.
Part of the IBC code procedure to evaluate seismic forces requires the evaluation of the Seismic
Site Class, which categorizes the site based upon the characteristics of the subsurface profile
within the upper 100 feet of the ground surface.
To define the Seismic Site Class for this project, and in accordance with your requested level
of assessment, PSI proposes to interpret the results of our soil test borings drilled within the
project site and estimate appropriate soil properties below the base of the borings to a depth of
100 feet, as permitted by Section 1613.5.5 of the code. The estimated soil properties will be
based upon data available in published geologic reports as well as PSI's experience with
subsurface conditions in the general site area.
This proposal is based on the Seismic Design Category for this site being determined by others.
However, should the site have a Seismic Design Category C, D, E or F, then the code requires
an assessment of slope stability, liquefaction potential, and surface rupture due to faulting or
lateral spreading. For certain types of buildings and sites, an evaluation of seismic stresses on
retaining and basement walls may also be required. Detailed evaluations of these factors are
beyond the scope of this proposal. However, PSI's evaluation of conditions will provide a
qualitative assessment of these issues and will provide recommendations for more detailed
study if the risk of one or more of these hazards is considered moderate to high.
REPORT
At the conclusion of PSI's field and laboratory work, a geotechnical exploration report will be
prepared. The report will include the following:
• Soil boring logs containing descriptions of the soil and groundwater conditions at the
test boring locations and boring location diagram;
• A summary of the laboratory test results;
• Evaluation of soil and groundwater conditions;
• Guidelines for subgrade preparation for foundations and floor slabs, and for the selection
and placement of structural fill in these areas;
• Shallow foundation design recommendations including allowable bearing pressures;
• Recommendations for design and construction of slabs on grade including subgrade
modulus values;
• Equivalent fluid pressures for active and at rest earth pressures for below grade walls;
• IBC 2015 seismic site classification.
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SPECIAL INSTRUCTIONS
PSI Proposal No.: PO -0094-290069-R-2
October 31, 2019
Page 5
Communication of any available site development plans or previous geotechnical investigations
to PSI is needed. Upon project start-up, PSI will contact your designated representative
regarding this information about project scheduling.
Some damage to ground surface may result from the drilling operations near the work areas
and along ingress/egress pathways. PSI will attempt to minimize such damage, but no
restoration other than backfilling the soil test borings and surface patching is included.
PSI will contact Diggers Hotline for public utility clearance prior to the start of drilling activities.
However, this service does not mark the locations of privately -owned utilities. PSI's proposal
is based on private utility lines and other subsurface appurtenances being located in the field
by others prior to our mobilization. The cost of private utility locating is not included in PSI's
proposal. If PSI is asked to provide this service, an additional fee will apply.
FEES
It is proposed that the fee for performance of the geotechnical scope of services be charged on
a unit rate basis. For the base scope of services outlined above, the total fee for the
geotechnical services will be $20,943.50.
Boring, sampling, and testing requirements are a function of the subsurface conditions
encountered. This fee is based on adequate bearing materials being encountered with the
proposed boring depths. Should conditions be encountered which require deepening borings
or additional investigation, PSI will notify you to discuss modifying the outlined scope of work.
Additional work beyond the lump sum fee will not be performed without your prior authorization.
AUTHORIZATION
If this proposal is acceptable to you, PSI will perform the work in accordance with the City
of Oshkosh Consultant Agreement between Professional Service Industries, Inc. and the
City of Oshkosh, dated December 12, 2018. Please sign below as notice to proceed and
return on copy of this proposal intact to PSI's office. PSI will proceed with the work upon receipt
of authorization.
PSI appreciates the opportunity to offer our services to your project and look forward to working
with you. Please call with any questions you may have, or if PSI can be of additional service.
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Respectfully submitted,
PROFESSIONAL SERVICE INDUSTRIES, INC.
Electronic Copy
Patrick Bray
Branch Manager
Attachments: Proposal Acceptance
Estimate Worksheet
Standard Fee Schedule
PSI Proposal No.: PO -0094-290069-R-2
October 31, 2019
Page 6
Electronic Copy
James M. Becco, P.E.
Vice President
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PROPOSAL ACCEPTANCE:
PSI Proposal No.: PO -0094-290069-R-2
October 31, 2019
Page 7
AGREED TO, THIS DAY OF 2019.
BY (please print):
TITLE:
COMPANY:
SIGNATURE:
PROJECT INFORMATION:
1. Project Name:
2. Project Location:
3. Your Job No:
4. Project Manager:
5. Site Contact:
6. Number and Distribution of Reports:
( ) Copies To:
Attn:
( ) Copies To:
Attn:
7. Invoicing Address:
AIR
Purchase Order No.:
Telephone No.:
Telephone No.:
( ) Copies To:
Attn:
( ) Copies To:
8. Other Pertinent Information Or Previous Subsurface Information Available:
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GEOTECHNICAL EXPLORATION -
ESTIMATE WORKSHEET
Professional Service Industries, Inc.
3009 Vandenbroek Road
Kaukauna, Wisconsin 54130
Phone: (920)-735-1200
Fax: (920) -735-1840
Client Name: Mr. Justin Gierach� Date: October 31, 2019
City of Oshkosh Department of Public Works
Project Name: Proposed West 28th Street Lift Station
Project Location: Oshkosh, Wisconsin
DESCRIPTION OF SERVICE(S)
PSI Proposal No.: PO -0094-290069-R-2
Quanti Unit Fee Total
Boring Layout
1
lump sum
$450.00
$450.00
MobilizationtDaily Travel/Traffic Control
1
lump sum
$650.00
$650.00
Soil Borings - 2.5 foot sampling intervals
30
feet
$13.95
$418.50
Soil Borings - Continous sampling intervals
35
feet
$15.00
$525.00
Staff Geologist
50
Hours
$75.00
$3,750.00
Support Vehicle
5
day
$85.00
$425.00
24 Hour Delayed Groundwater Measurement
1
lump sum
$250.00
$250.00
Rock Coring Set Up
4
each
$350.00
$1,400.00
Rock Coring with NQ2 core barrel diamond bit 0-10' core run
35
feet
$75.00
$2,625.00
Rock Coring with NQ2 core barrel diamond bit 10.20' core run
10
feet
$100.00
$1,000.00
Rock Coring with NQ2 core barrel diamond bit 20-30' core run
10
feet
$125.00
$1,250.00
Piezometer
1
lump sum
$1,050.00
$1,050.00
48 Hour Delayed Well Groundwater Measurement
1
lump sum
$250.00
$250.00
1 Week Delayed Well Groundwater Measurement
1
lump sum
$250.00
$250.00
2 Week Delayed Well Groundwater Measurement
1
lump sum
$250.00
$250.00
4 Week Delayed Well Groundwater Measurement
1
lump sum
$250.00
$250.00
Sieve Analysis
8
each
$65.00
$520.00
Hydrometer
8
each
$125.00
$1,000.00
Atterberg Limits
8
each
$85.00
$680.00
Moisture Content
20
each
$5.00
$100.00
Corrosion Suite: (pH, Resistivity, Sulfate, Chloride)
6
each
$250.00
$1,500.00
Rock Unconfined Compressive Strength and Unit Weight
8
each
$100.00
$800.00
Geotechnical Engineering Report
1
lump sum
$1,550.00
$1,550.00
TOTAL
ESTIMATED COST:
$20,943.50
Scope:
Lift Station - Perform OS -1 to a depth of 35 feet and perform 5 feet of rock coring. Perform OS -2 to a depth of 10
feet and perform 30 feet of rock coring. A total of 45 feet of drilling and 35 feet of rock coring is proposed. In
addition, a piezometer will be installed at OS -1.
West 28th Street - Perform two borings to a depth of 10 feet and two 10 foot rock cores. A total of 20 feet of drilling
and 20 feet of rock coring is proposed.
PROFESSIONAL SERVICE INDUSTRIES, INC.
GEOTECHNICAL SERVICES STANDARD FEE SCHEDULE
ENGINEERING SERVICES
Engineering & Technical services for site reconnaissance, boring locations, field supervision, water level measurements &
sampling, engineering evaluation, analysis & consultation.
Staff Engineer or Geologist $75.00 Per Hour Sr. Engineering Technician $50.00 Per Hour
Project Engineer or Geologist $85.00 Per Hour Engineering Technician $40.00 Per Hour
Principal Engineer or Geologist $100.00 Per Hour Secretarial Services $25.00 Per Hour
Principal of Firm $110.00 Per Hour
FIELD SERVICES
Mobilization of Drilling Equip. $3.00 Per Mile ($450.00 Minimum) Boring Layout $90.00 Per Hour
Support Vehicle $0.55 Per Mile (Min. $85.00 Per Day) Standby & Problem Access Time $150.00 Per Hour
All -terrain Drill Rig $750.00 Per Day 2 -Man Crew Per Diem $200.00 Per Day
Soil Drilling with Split -spoon (ASTM D-1586) or Shelby Tube (ASTM D-1587) sampling at 5 -foot intervals:
Depth Range Unit Charges Per Foot, Unit Charges Per Foot Extra SS or ST Samples
3'W, 4'/." I.D. Auger 6'/." I.D. Auger
Easy Drilling* Hard Drilling" Easy Drilling* Hard Drilling**
0 - 25 ft.
$11.00
$13.00
$14.00
$16.00
$10.50
25-50
$13.00
$15.00
$16.00
$18.00
$14.00
50-75
$16.00
$18.50
$20.00
$22.00
$17.50
75-100
$18.00
$22.00
$24.50
$28.00
$22.50
* N -count of 40 blows or less, or Qu or Qp less than 4 tsf
N -count greater than 40 blows, or Qu or Qp greater than 4 tsf
Drilling with 12-114" I.D. Auger will be quoted upon request.
Auger Drilling without sampling $9.00 Per Foot Shelby Tubes, 3" diameter
Rock Coring with Diamond Bit $75.00 Per Foot DOT 55 -Gallon Drums -Soil Cuttings
Rock Boring with 3" Roller Bit $45.00 Per Foot Drilling mud, as needed
Rock Coring & Boring Set-up Charge $350.00 Per Hole Pavement Cold -Patch at boreholes
LABORATORY TESTING
Visual Engineering Classification
Hand Penetrometer Test
Moisture Content Test
Organic Content Test
Density Determination with Moisture Content
Atterberg Limits Determination
Grain Size Analysis, Sieve
Grain Size Analysis, Sieve & Hydrometer
Moisture Density Relationship
Standard Method, ASTM D-698
Modified Method, ASTM D-1557
REMARKS
$4.00 Per Test Unconfined compression tests,
$4.00 Per Test remac
$5.00 Per Test without stress -strain curve
$35.00 Per Test with stress -strain curve
$30.00 Per Test California Bearing Ratio (CBR)
$85.00 Per Test Permeability, Rigid Wall
$65.00 Per Test Permeability, Flexible Wall
$95.00 Per Test Shelby Tube sample preparationtremolding
$150.00 Per Test
$175.00 Per Test
$40.00 Each
$60.00 Each
$3.00 Per Foot
$25.00 Per Hole
$5.00 Per Test
$30.00 Per Test
$45.00 Per Test
$250.00 Per Test
$250.00 Per Test
$300.00 Per Test
$40.00 Per Tube
Charges for monitoring well installation, analytical testing services, and special equipment or sampling techniques not included
herein, will be quoted upon request. Rental equipment & commercial transportation charges will be billed at cost plus 20%. A
per diem charge of $100.00/day per person will be billed as applicable. Invoices will be submitted monthly, with payment due
within 30 days of invoice date. Interest will be added at a rate of tY% per month of delinquency. Proposal estimates & verbal
quotations will remain valid for 60 days, at which time they may be subject to change or withdrawal.
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