RES 2022-0528 - Amend No. 1 to PSA with HDR Engineering for OPW 53907 - Papillion Creek Interceptor Rehabilitation - South 36th Street and Raynor ParkwayEXHIBIT "B"
AMENDMENT NO. 1
SCOPE OF SERVICES FOR FINAL DESIGN
OPW 53907 -PAPILLION CREEK SANITARY SEWER INTERCEPTOR
REHABILITATION (RN):
Geotechnical Investigations
ARTICLE 1. SCOPE OF SERVICES
This AGREEMENT provides for engineering services for geotechnical investigations
(PROJECT) for the Rehabilitation of the section of the Sarpy County Interceptor known
as the Papillion Creek Santitary Sewer Rehabilitation (RN).
The PROJECT is located in Sarpy County Nebraska and with the limits generally
described as beginning at the Papillion Creek Waste Water Recovery Facility
(PCWRRF) located at 157005 Harlan Lewis Road in Bellevue, Nebraska 68005 and
ending near the intersection of South 36th Street and Brook Drive in Bellevue,
Nebraska 68123.
The PROJECT will be based upon the preliminary design and field work completed as part
of the OPW 53907 Papillion Creek Sanitary Sewer Interceptor Rehabilitation (RN).
The proposed investigations will occur at Sites A, B, C, D, E, F, G, and Has described in
the OPW 53907 Papillion Creek Sanitary Sewer Interceptor Rehabilitation (RN)
contract.
The PROJECT work will be performed as part of the overall Sarpy County Sanitary Sewer
Interceptor Rehabilitation Program. ENGINEER will be required to comply with the
written Plans, Protocols, Procedures, Standards, and Guidance documents adopted from the
CSO Program that are applicable to the particular tasks being performed as part of this
project. The CITY will set up a file sharing platform separate from the CSO program.
This scope of services is organized in categories of project assumptions, project
management, and major project design tasks. Major elements of work will include:
Task 8: Geotechnical Investigations
Task 9: Utility Location Drilling Program Plan Preparation
1
MAJOR PROJECT ASSUMPTIONS
The following assumptions are specific to this amendment and are in addition to the
assumptions contained in the original SCOPE OF SERVICES and previous AMENDMENTS.
1.The City's review comments will be submitted to Consultant within two weeks after
submittal of the draft geotechnical report.
2.USACE review comments of the geotechnical report will be received in time to be
addressed for the Section 408 submittal at 90% design.
3.The Operations and Maintenance manual for the levee system will be provided prior to
completion of the technical memorandum.
4.The Drilling Program Plan approval process is anticipated to take between three and six
months.
5.The utility location operations will be performed by a subconsultant and consist of
vacuum excavation methods.
TASK 8 -GEOTECHNICAL INVESTIGATIONS
Objective: Provide geotechnical investigations, lab results and reporting for Sites A, B, C,
D, E, F, G, H to support the ongoing rehabilitation design of the PROJECT.
Deliverables: Geotechnical Exploration Drilling Program Plan (subconsultant); Geotechnical
Report.
Scope:
8.1 Coordination of Drilling, Lab Assignments, and Review Data ENGINEER to
the field exploration program consisting of the following:
Schedule of Borings
Location Boring Number Boring Depth
Site A B-1 30 feet
Site B B-2 50 feet
Site C B-3 50 feet
Site D B-4 25 feet
Site E B-5 30 feet
Site F B-6 25 feet
Site G B-7 50 feet
Site H B-8 25 feet
ENGINEER will hire a sub-consultant (Terracon Geotech) to perform the
geotechnical drilling, sampling and laboratory materials testing. Sub-consultant
will make a site visit to evaluate access to the boring location and to adjust the
boring location, if needed.
2
8.6 Mitigate Underseepage Concerns ENGINEER will evaluate the need for
special trench subgrade stabilization measures for support of the new storm
sewer. ENGINEER will evaluate potential temporary slope configurations
during installation of the storm sewer.
8.7 Meetings/Conference Calls ENGINEER will attend internal and external team
meetings/conference calls as directed by the project manager. Including a site
visit with NRD to confirm the access and bore locations.
8.8 Geotechnical/Design Report ENGINEER shall prepare and submit a PDF
electronic version of the technical memorandum to the City of Omaha for
review. ENGINEER shall then address review comments provided by the City
of Omaha (if any) and submit a final PDF version of the geotechnical report.
In addition to the results of the field investigation and lab testing program, the
geotechnical report will address the following items:
•Geologic setting;
•Subsurface soil and groundwater conditions;
•Evaluation of the engineering characteristics of the soils;
•Evaluation of estimated settlements of the levee crest resulting from
construction;
•Evaluation of subgrade preparation needed for the proposed storm sewer;
•Evaluation of potential temporary slope configurations during installation of
the storm sewer;
•Recommendations for construction.
•Preparation of a technical memorandum presenting findings and geotechnical
considerations for inclusion in USACE Section 408 submittal.
Key Understandings and Assumptions for geotechnical field work:
-USA CE approval of DPP will be provided within 90 days of submission.-Right of entry will be obtained by the CITY. The use of the levee crest for
access will be avoided, where possible.-No testing for soil corrosivity will be completed.-No screening for potential petroleum hydrocarbons will be completed.-Abandonment of the monitoring well(s) will be completed by others as part
of the construction project.
TASK 9-UTILITY LOCATION DRILLING PROGRAM PLAN PREPARATION
Objective: Prepare a Drilling Program Plan for utility location potholing work to be
conducted by sub-consultant. (Potholing work to be executed via separate
contract.)
Deliverables: The key deliverables for this task will be a Utility Location Drilling Program
Plan.
Scope:
4
TASK SERIES TASK 8 -GEOTECHNICAL INVESTIGATIONS 8.1 Coordination of , Lab Assiimmcnts,Revicw Data 8.2 Develon Soil Desi1111 Parameters 8.3 Undcrsernm<1c Analysis 8.4 Settlement Analysis 8.5 Slope Stabilitv Analysis 8.6 Miti@te UndersePnll<>e Concerns 8.7 Mce11nuc11 onfcrcnce Calls 8.8 Geotechnical/Desism Reoort Subtotal Task 8
TASK 9-lITIUTY LOCATION OPP AND FIELD INSPECTIONS
9.1 Potholiru:!:DPP ation 9.2Potholin DPPFieldObservation Subtotal Task 9
TOTAL
_l
Task Series TASK 8 -GEOTECHNICAL INVESTIGATIONS 8.1 Coordination of Drilling, Lab Assignments,Revicw Data 8.4 Settlement Ana.!l'..sis 8.5 Slope Stability Analysis 8.6 Mitigate Underseepage Concerns 8.7 Meetings/Conference Calls 8.8 Geotechnical/Design Report TASK 9-lITIUTY LOCATION OPP AND FIELD Th/SPECTIONS
)9.1 PotholingDPPPreparation 9.2 Potholing OPP Field Observation
Task Series
TASK 8 -GEOTEClmICAL INVESTIGATIONS 8.1 Coordination ofDrillin,g, Lab Assiimments,Revicw Data 8.4 Settlement Analysis 8.5 Slope Stabilitv Analysis 8.6 Miti@te Underse"""'"C Concerns 8.7 Mee11nucn onforence Calls 8.8 Geotcchnical/Desism Reoort TASK 9 -UTIUTY LOCATION DPP AND FIELD lliSPECilONS 9.1 Potholirul. DPP tion 9.2 Potholiru! DPP Field ObSCIVation
TOTAL
TOTAL:
SENIOR PROJECT PM/ADVISOR PRIN'CIPAL
0 0
0 0
0 0
DIRECT COSTS Tnvel�ses Milea_g_e Cost
$0.00 $0.00
40 $23.00 $0.001
S0.00 245 $l4Q88 285.00 $163.88 QC 0
0
0
Postage
50.00
PM CADD
8
18 3 29 0
2 4
6 0
JS 0
IPrint & Phot�1 Mapping and COpY Photos
I $50.00
$50.00 50.00
EXHIBIT C-REHABillTATION FEE SUMMARY TocalLabor Direct Costs
$5,720.03 $0.00 $7,528.20 $0.00 $7 528.20 $0.00 $4 042.03 $0.00 $9,247.89 $23.00 $17,098.92 $50.00
$9,869.00 $0.00 $12,121.91 $140.88 $88,051.75 $213.88
$196.!.013
CADD
10
10
8 90
98
108
Misc.
$0.00
Subconsultants
$102,617.00
$102 617.00
ASMEC PRODUCTION
0
0
0 Total S0.00 $0.00 $0.00 so.oo' $23.00 sso.oo'
$0.00 $l4Q88 $213.88
Total
$108,337.03 $7,528.20 $7.528.20 $4 042.03 $9,270.89 $17,148.92
$9,869.00 $12.262.78 $196 013.48
SR STRUCTURAL
0
0
0
GEOTECII SR GEOTECH CONfROllER
10 3 10 3 48 16 32 8 32 8 16 5 14 5 58 16
220 64
40 6 2 2
42 8
262 72
1s5,13o.ss 5% submarkupj
HOR Cost
Sub-consultant Cost
Total Cost
10
10
0
10
WWEIT CIVIL TOTAL
5 36
13 64 40 40 21 12 49
8 95
0 25 358
2 58 6 104
0 8 162
0 33 520
Terracon Consultants, Inc. 15080 A Circle Omaha, Nebraska 68144
P (402) 330 2202 F (402) 330 7606 terracon.com
PROPOSAL COVER PAGE
January 25, 2022
HDR, Inc.
1917 S 67th Street
Omaha, Nebraska 68106
Attn: Mr. Bryan Kumm – Geotechnical Engineer
P: (402) 399.1147
E: bryan.kumm@hdrinc.com
Re: Proposal for Geotechnical Engineering Services
Sarpy County Interceptor Sewer Replacement
S 36th Street to Missouri River
Sarpy County, Nebraska
Terracon Proposal No. P05225020
Dear Mr. Kumm:
We appreciate the opportunity to submit this proposal to HDR, Inc. (HDR) to provide Geotechnical
Engineering services for the above referenced project. The following are exhibits to the attached
proposal.
Exhibit A Project Understanding
Exhibit B Scope of Services
Exhibit C Compensation and Schedule
Exhibit D Requested Exploration Plans
Please see Exhibit C for details concerning our fees to perform the scope of services described
in this proposal.
We understand HDR will issue a Subconsultant Agreement for Geotechnical Services for this
project. Please contact us if the there are any questions concerning this proposal.
Sincerely,
Terracon Consultants, Inc.
Gopala K. Allam, E.I. Michael D. Ringler, P.E.
Sr. Staff Engineer Senior Engineer
Distribution: Addressee (pdf)
Mr. Jake Sellin, HDR (pdf)
Proposal for Geotechnical Engineering Services
Sarpy County Interceptor Sewer Replacement Sarpy County, Nebraska
January 25, 2022 Terracon Proposal No. P05225020
Responsive Resourceful Reliable EXHIBIT B – SCOPE OF SERVICES 1 of 7
EXHIBIT A - PROJECT UNDERSTANDING
Our scope of services is based on our understanding of the project as described by HDR. We
have/have not visited the project site to review surface features or access conditions. Site visit
will be performed as part of site reconnaissance prior to mobilization to the site. Aspects of the
project which are undefined or assumed are highlighted. We request the design team verify this
information prior to initiation of field exploration activities.
Site Location and Anticipated Conditions
Item Description
Parcel Information The project is located between S 36th Street to Missouri River on north/east
side of Papillion Creek in Sarpy County, Nebraska.
Existing
Improvements /
Current Ground Cover
Existing interceptor sewer alignment. Papio-Missouri River NRD Flood
Protection Levee along both banks of Papillion Creek channel. Several
culverts and stormwater outlets. The grounds are grass and/or tree covered.
Site Access
We expect the site and all exploration locations are accessible with our ATV-
mounted drilling equipment, except for one boring proposed within the wooded
areas near Offutt Air Force Base Gate will likely require tree clearing
operations which are not included in this quote.
Expected Subsurface
Conditions
Our experience near the vicinity of the proposed development and geologic
maps indicates subsurface conditions consist of man-made fill, alluvial clay
and silt soils overlying sand.
Planned Construction
Item Description
Information Provided
Sarpy County Interceptor Sewer Replacement (OPW 53269) for Sites A, B,
C, D, E, F, G, H Sarpy County, Nebraska. Proposed Scope of Work for Fee
Estimate, Drilling and Laboratory Test Program.
Project Description Replacement of interceptor sewer at road crossings and drainage channels
crossings.
EXHIBIT B - SCOPE OF SERVICES
Our proposed scope of services consists of field exploration, laboratory testing, and engineering/
report delivery. These services are described in the following sections.
Proposal for Geotechnical Engineering Services
Sarpy County Interceptor Sewer Replacement Sarpy County, Nebraska
January 25, 2022 Terracon Proposal No. P05225020
Responsive Resourceful Reliable EXHIBIT B – SCOPE OF SERVICES 2 of 7
Generating Drilling Program Plan (DPP)
The site is within the jurisdictional zone of the City of Omaha, Papillion Creek Flood Protection
Levee. The levee sponsor Papio-Missouri River NRD and the Corps of Engineers require
notification whenever soil borings are planned within the jurisdictional zone.
ER 1110-1-1807 (Drilling in Earth Embankment Dams and Levees, generated by the U.S. Army
Corps of Engineers (COE), dated December 31, 2014) establishes policy and requirements and
provides guidance for drilling in dam and levee earth embankments and/or their earth and rock
foundations. This document requires development and approval of a Drilling Program Plan (DPP)
prior to any drilling, sampling, grouting, or any other invasive in-situ testing or exploration.
We will generate a DPP in general accordance with ER 1110-1-1807, and submit it to the client
for review. The DPP will address all potential aspects of the field exploration which could occur.
Upon concurrence, this document will be forwarded to the levee sponsor and the COE.
Field Exploration
Site Access: In order to conduct our field services, we must be granted access to the site by the
property owner. We consider accepting this proposal, without information to the contrary, as
permission to access the property (including access routes) for the purpose of conducting the
field exploration. Our scope does not include determining access routes or negotiating site
access with the levee sponsor or adjacent property owners. We will not drive our equipment over
the levee and so request the access routes not traverse over the levee.
Exploration Program: HDR requested the following boring locations and depths:
Boring No.
Type Boring
Depth
(feet)1
Planned Location 2, 3
B-1S Boring 30 Along sewer alignment – Site A
B-2S Boring/Observation Well 50 Along sewer alignment – Site B
B-3S Boring/Observation Well 50 Along sewer alignment – Site C
B-4S Boring 25 Along sewer alignment – Site D
B-5S Boring 30 Along sewer alignment – Site E
B-6S Boring 25 Along sewer alignment – Site F
B-7S Boring/Observation Well 50 Along sewer alignment – Site G
B-8S Boring 25 Along sewer alignment – Site H
Proposal for Geotechnical Engineering Services
Sarpy County Interceptor Sewer Replacement Sarpy County, Nebraska
January 25, 2022 Terracon Proposal No. P05225020
Responsive Resourceful Reliable EXHIBIT B – SCOPE OF SERVICES 3 of 7
Boring No.
Type Boring
Depth
(feet)1
Planned Location 2, 3
1.Referenced depth is below existing ground surface or to practical auger refusal, whichever is
shallower.
2.Refer to Exhibit D.
3.As requested by HDR, the boring will be terminated if contamination is encountered.
The RFP also requested Terracon’s scope include a contingency boring:
Boring Number of Borings Boring Depth (feet)1
Contingency Boring 1 25
1. Referenced depth is below existing ground surface or to practical auger refusal, whichever is
shallower.
Boring Layout and Elevations: We will use handheld GPS equipment to locate borings with an
estimated horizontal accuracy of 1 foot and vertical accuracy of 0.5-foot.
If precise locations and elevations are desired, we suggest that the client retain a licensed
surveyor to stake the boring locations and provide elevations.
Subsurface Exploration Procedures: We will advance the soil borings with an ATV-mounted drill
rig using continuous hollow-stem augers and wash boring techniques to advance the boreholes
with water added for balancing groundwater pressure.
Sampling in the borings will be in general accordance with industry standard procedures. Samples
will be obtained at 2.5 ft intervals within fill and/or to a depth of 10 feet below ground surface,
otherwise samples will be obtained at intervals of about 5 feet. Both thin-walled Shelby tubes and
split-barrel samples will be obtained. The samples will be placed in appropriate containers and taken
to our soil laboratory for testing. Field logs will be provided to HDR within 2 days following drilling
and laboratory testing will be assigned by HDR. In addition, we will observe and record
groundwater levels in the boreholes during drilling and sampling, after each boring is completed,
and quarterly in the observation wells for 1 year after installation. Borings will be backfilled with
high-solids bentonite grout unless an observation well is installed.
Our exploration team will include an experienced field engineer or geologist who will prepare field
boring logs. The field logs will include sampling depths, penetration distances, and other relevant
sampling information. Field logs will also include visual classifications of materials encountered
during drilling, and our interpretation of subsurface conditions between samples. Typed boring
Proposal for Geotechnical Engineering Services
Sarpy County Interceptor Sewer Replacement Sarpy County, Nebraska
January 25, 2022 Terracon Proposal No. P05225020
Responsive Resourceful Reliable EXHIBIT B – SCOPE OF SERVICES 4 of 7
logs included with the report will represent the geotechnical engineer's interpretation of the field
logs, and include modifications based on laboratory observations and tests.
Groundwater Observation Well Installation: As requested, groundwater observation wells
estimated to be about 50 feet below ground surface (bgs) will be installed at three boring locations.
The observation wells will be constructed with two-inch nominal diameter, flush threaded, PVC,
well pipe. The wells will be constructed with a well point and 20 feet of 0.01-inch wide, manufacturer
slotted, well screen placed at or near the bottom of the boring. The screen will be attached to solid-
stem riser pipe, extended above the ground surface by about 2 to 3 feet, and capped with an
expansion locking cap. The annulus around the outside of the well will be backfilled with sand from
the bottom of the boring to approximately 2 feet above the top of the screen. Non-slurry bentonite
grout (e.g., chips) will be placed from the top of the sand to the bottom of an 8-inch thick by 36-inch
diameter concrete pad placed at the ground surface. The well will be terminated in a steel protector
pipe encased in the concrete pad protected by safety bollards, developed, and registered with the
State of Nebraska Department of Natural Resources (NDNR) as an observation well.
Decommissioning costs are not included in this proposal. As requested, one slug test will be
performed at each observation well.
Property Disturbance: Borings will be backfilled with high-solids bentonite grout unless an
observation well is installed. Excess auger cuttings and drilling fluids will be dispersed in the
general vicinity of the boreholes. Because backfill often settles below the surface after a period,
the RFP requests Terracon make a return trip to top-off the grout at the borings.
Our scope of services does not include site clearing, wet ground conditions, tree or shrub clearing,
or repair of/damage to existing landscape. If such conditions are present, we should be notified
so we can adjust our boring locations or fees. We have provided a small contingency for site
restoration, traffic control, and tree clearing. Actual cost for site restoration, traffic control, tree
clearing will be passed on at cost+15%.
Our field equipment includes heavy drill rigs and support vehicles carrying water tanks. We
request access routes be provided such that traversing over the levees is avoided. We will take
reasonable efforts to avoid excessive damage or rutting due to our equipment; however, the
extent of damage will highly depend on the near-surface soil moisture content and
presence/absence of frost or poor drainage. At a minimum, the field equipment will leave
depressions several inches deep in even dry weather with firm ground conditions. Similarly,
tracked equipment will tear through vegetation and roots. More disturbance occurs during wet
weather and in soft ground conditions.
Safety: Employee safety is a core value of Terracon, and we are committed to an Incident and
Injury-Free (IIF) workplace. This commitment is at all levels of our company to ensure that
everyone goes home safe to their family every day. All employees are expected to perform their
job assignments with safety as a primary objective. Field work will be performed following
Proposal for Geotechnical Engineering Services
Sarpy County Interceptor Sewer Replacement Sarpy County, Nebraska
January 25, 2022 Terracon Proposal No. P05225020
Responsive Resourceful Reliable EXHIBIT B – SCOPE OF SERVICES 5 of 7
Terracon-performed Pre-Task Planning and Tailgate meetings to discuss the potential safety
hazards and reinforce project objectives and procedures.
We will contact the local “one-call” service for location of utilities in public easements. Locating
private lines on the property is not part of the “one-call” or our scope. All private lines should be
marked by the owner/client prior to commencement of field exploration. We are not 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, we can assist the owner/client by coordinating or subcontracting
with a private utility locating services and/or utilize geophysical equipment. Fees associated with
these additional services are not included in our current cost and will be forwarded to our client
for approval prior to initiating. 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 locate service would
not relieve the owner of responsibility in identifying private underground utilities.
We are not aware of any environmental concerns at this project site that would create health or
safety hazards associated with our exploration program; thus, our scope considers that Level D
Personal Protection Equipment (PPE) is appropriate. Our scope of services does not include any
level of environmental site assessment services, but unusual or unnatural materials encountered
while drilling will be noted on our logs.
Our field crew will make excavations into the ground and, as such, these excavations could
encounter subsurface utilities and/or environmental hazards that could be harmful to our field
crew. We have dedicated significant time, resources and training necessary for an IIF
environment, and all employees are authorized to ‘stop work’ if unsafe conditions are identified
during the field exploration. If there is potential to encounter unknown or unmarked underground
hazards, we will reevaluate site conditions and propose alternative methods to proceed with the
excavations to ensure the safety of our field crew. The owner/client will be consulted regarding
possible alternative methods and authorization will be received from the owner/client prior to
proceeding with the field work.
In order to reduce the risk of exposure to the coronavirus, Terracon retains the right to stop work
without penalty if it is in the best interest of our employees or subcontractors. Client agrees it will
respond quickly to all requests for information made by Terracon related to our pre-task planning
and risk assessment processes. Client acknowledges its responsibility for notifying Terracon of
any circumstances that present a risk of exposure to the coronavirus or individuals who have
tested positive for COVID-19 or are self-quarantining due to exhibiting symptoms associated with
the coronavirus.
Proposal for Geotechnical Engineering Services
Sarpy County Interceptor Sewer Replacement Sarpy County, Nebraska
January 25, 2022 Terracon Proposal No. P05225020
Responsive Resourceful Reliable EXHIBIT B – SCOPE OF SERVICES 6 of 7
Laboratory Testing
Laboratory testing will be assigned by HDR. For budgeting purposes, the testing is assumed to
include the following under the base fee.
ASTM D2216 Standard Test Methods for Laboratory Determination of Water (Moisture)
Content of Soil and Rock by Mass, 41 tests
ASTM D7263 Standard Test Method for Laboratory Determination of Density (Unit Weight)
of Soil Specimens, 16 tests
ASTM D2166/D2166M Standard Test Method for Unconfined Compressive Strength of
Cohesive Soil, 16 tests
ASTM D4318 Standard Test Methods for Liquid Limit, Plastic Limit, and Plasticity Index of
Soils, 16 tests
ASTM D422 Standard Test Method for Particle-Size Analysis of Soils with Sieve and
Hydrometer, 11 tests
ASTM D2435/D2435M Standard Test Methods for One-Dimensional Consolidation
Properties of Soils Using Incremental Loading, 3 tests
Our laboratory testing program includes review of the soil samples by an engineer. Based on the
material’s texture and plasticity, we describe soil samples in general accordance with the Unified
Soil Classification System (USCS).
Data Report Delivery
The results of our field and laboratory programs will be reviewed and summarized by a
geotechnical engineer. and a data report prepared. The report will be delivered using our
GeoReport system. Upon authorization, we will provide you and the design team the necessary
link and password to access the website (if you don’t already have one). Each project includes a
calendar to track the schedule, an interactive site map, a listing of team members, access to all
project documents as they are uploaded, and a collaboration portal. A typical delivery process
includes two stages:
Stage 1: Project Planning
Stage 2: Site Characterization
Stage 3 Geotech. Data Report
When services are complete, we will upload a printable version of our geotechnical data report.
All previous submittals, collaboration, and the report will be maintained in our system indefinitely
to allow future reference and integration into subsequent aspects of our services.
Proposal for Geotechnical Engineering Services
Sarpy County Interceptor Sewer Replacement Sarpy County, Nebraska
January 25, 2022 Terracon Proposal No. P05225020
Responsive Resourceful Reliable EXHIBIT B – SCOPE OF SERVICES 7 of 7
The Geotechnical Data Report will provide the following:
Project description
Site description
Computer generated boring logs with:
o soil stratification based on visual soil classification (Unified Soil Classification System)
o summarized laboratory data
o groundwater levels observed in the borings
o ground surface elevation
Plotted laboratory (consolidation, rock compression and gradation test results)
Site and/or boring location plans provided by HDR
Description of field exploration and laboratory testing procedures
Site description (existing)
Summary description of subsurface conditions
SPT hammer calibration report(s)
Proposal for Geotechnical Engineering Services
Sarpy County Interceptor Sewer Replacement Sarpy County, Nebraska
January 25, 2022 Terracon Proposal No. P05225020
Responsive Resourceful Reliable EXHIBIT C – COMPENSATION AND SCHEDULE 1 of 3
EXHIBIT C - COMPENSATION AND SCHEDULE
Compensation
Our fee(s) quoted in the following table are based upon our understanding of the site conditions,
the project as summarized in Exhibit A, and our planned scope of services outlined in Exhibit B.
Service Item Quantity Unit Unit Rate Total
Cost
Drilling Program Plan with hydrofracture analysis 1 L.S. $5,500 $5,500
Mob/Demobilization with daily travel 1 L.S. $3,500 $3,500
Support Truck 8 Day $100 $800
Draft Health and Safety Work Plan 1 L.S. $2,500 $2,500
Drill crew on-site coordination and access 14 Hour $300 $4,200
Safety Tailgate 8 Hour $300 $2,400
Drilling and Sampling with Observation Well
Installation 150 Foot $70 $10,500
Drilling and Sampling (ATV) 135 Foot $35 $4,725
Cold weather drilling (hot water allowance) 1200 Gallon 0.60 $720
Grouting 135 Foot $15 $2,025
Return trip to top off grout 1 L.S $2,500 $2,500
Geologist or Field Engineer1 96 Hour $130 $12,480
Well surface completion 3 each $500 $1,500
Well registration 3 Each $500 $1,500
Slug test 3 Each $1,300 $3,900
Trips to obtain quarterly groundwater levels 27 Hour $130 $3,510
Liquid and Plastic Limits 16 test $120 $1,920
Moisture Content 41 test $12 $492
Dry Density 16 test $15 $240
Sieve Analysis w/ hydrometer 11 test $165 $1,815
Unconfined Compression Test 16 test $35 $560
1-d Consolidation Test 3 test $500 $1,500
Recon, Boring Layout and Elevations, Project
Management, Data Review, Report 1 L.S. $6,500 $6,500
Allowance for site restoration, if required (cost+15%) $8,000
Proposal for Geotechnical Engineering Services
Sarpy County Interceptor Sewer Replacement Sarpy County, Nebraska
January 25, 2022 Terracon Proposal No. P05225020
Responsive Resourceful Reliable EXHIBIT C – COMPENSATION AND SCHEDULE 2 of 3
Allowance for traffic control, if required (cost+15%) $3,000
Tree clearing, if required (cost+15%)2 $4,000
Total: $90,287
1. Field Engineer/Geologist with perform PID readings and log samples from borings.
2. One boring near Offutt Air Force Base Gate may need some tree clearing
Contingency Boring
Service Item Quantity Unit Unit Rate Total
Cost
Revise Drilling Program Plan 1 L.S $1,400
$1,400
Mob/Demob 1 L.S. $1,300
$1,300
Support Truck 1 Day $100 $100
Safety Tailgate 1 Hour $300 $300
Drill crew on-site coordination and access 2 Hour $300 $600
Drilling and Sampling, Soil (ATV) 25 Foot $35 $875
Cold weather drilling (hot water allowance) 300 Gallon 0.60 $180
Grouting 25 Foot $15 $375
Geologist or Field Engineer 10 Hour $130 $1,300
Return trip and topping off grout 1 Each $750 $750
Obtain quarterly groundwater levels 5 Hour $130 $650
Recon, Boring Layout and Elevations, Project
Management, Data Review, Report 1 L.S. $2,500 $2,500
Contingency for site restoration, if required (cost+15%) $2,000
Total: $12,330
Unless instructed otherwise, we will submit our invoice(s) to the address at the beginning of this
proposal. If we are authorized to proceed and the client subsequently postpones or cancels the
work, we will invoice the client for the costs of project set up and mobilization incurred prior to
notice of cancellation. If conditions are encountered that require scope of work revisions and/or
result in higher fees, we will contact you for approval, prior to initiating these services. A
supplemental proposal stating the modified scope of services as well as its effect on our fee will
be prepared. We will not proceed without your authorization.
Our fee does not include time for unplanned standby. Standby time will be charged at a rate of
$300 per hour for our drill crew.
Time associated with engineers to attend meetings or telephone conference calls will be charged
at a rate of $130/hour for Project Engineer, $180/hour for Senior Engineer, and $195/hour for
Proposal for Geotechnical Engineering Services
Sarpy County Interceptor Sewer Replacement Sarpy County, Nebraska
January 25, 2022 Terracon Proposal No. P05225020
Responsive Resourceful Reliable EXHIBIT C – COMPENSATION AND SCHEDULE 3 of 3
Principal. Mileage for travel to/from meetings will be charged at a rate of $0.68/mile. We will
obtain your authorization prior to incurring additional costs.
Schedule
We propose the following schedule to complete the scope of services, based upon our existing
availability. However, this schedule does not account for any delays in field exploration beyond
our control, such as weather conditions, permit delays, site access constraints, or lack of
permission. Please contact us if the following schedule is inconsistent with your needs.
We understand that HDR will submit the DPP to the USACE. After approval of the DPP, we
anticipate starting the field exploration within about 10 to 14 days, provided weather and site
conditions permit.
GeoReport Stage Posting Date 1, 2
Project Planning 5 days from notice to proceed
Field Exploration 10 to 14 days after receiving USACE approval
Geotech. Data Report 30 to 40 days after completion of field exploration
1.Upon receipt of notice to proceed and USACE permits, we will activate the schedule component of our
GeoReport website with calendar dates for the three delivery points noted above as well as other pertinent
events such as field exploration crews on-site, etc.
2.We will maintain a calendar of activities within our GeoReport website. The schedule will be updated as
needed to maintain a current awareness of our plans for delivery.