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HomeMy WebLinkAboutTerracon_-_Airline_Highway_Utility_Improvements_GEP_P13255066_-_10.20.2025Docusign Envelope ID: 9CCE78DA-7F59-4322-BCA8-0C8C8C479D40 rr ierracon October 20, 2025 City of Waterloo 715 Mulberry Street Waterloo, Iowa 50703 Attn: Quentin Hart, Mayor P: (319) 291-4312 E: quentin.hart@waterloo-ia.org RE: Proposal for Geotechnical Engineering Services Airline Highway Utility Improvements CN railroad, Airport Boulevard, and Airline Highway Waterloo, Iowa Terracon Proposal No. P13255066 Dear Mr. Hart: 3105 Capital Way, Suite 5 Cedar Falls, IA 50613 P (319) 277-4016 Terracon.com We appreciate the opportunity to submit this proposal to the City of Waterloo (Waterloo) to provide Geotechnical Engineering services for the above referenced project. The following are exhibits to the attached Agreement for Services. Exhibit A Exhibit B Exhibit C Exhibit D Exhibit E Project Understanding Scope of Services Compensation and Project Schedule Site Location and Nearby Geotechnical Data Anticipated Exploration Plan Our unit price fee to perform the Scope of Services described in this proposal is presented in Exhibit C. A delivery timeframe of about 8 weeks after receipt signed authorization is currently anticipated. Your authorization for Terracon to proceed in accordance with this proposal can be issued by signing and returning a 'pdf' file of the attached Agreement for Services to Kurt.Drilling@terracon.com. Sincerely, Terracon % ,r a .B.a164,, Kurt Drilling Senior Staff Geologist Jason Heinz, P.E. Principal Facilities I Environmental I Geotechnical I Materials Docusign Envelope ID: 9CCE78DA-7F59-4322-BCA8-0C8C8C479D40 rerracon Reference Number: P13255066 AGREEMENT FOR SERVICES This AGREEMENT is between City of Waterloo IA ("Client") and Terracon Consultants, Inc. ("Consultant") for Services to be provided by Consultant for Client on the Airline Highway Utility Improvements project ("Project"), as described in Consultant's Proposal dated 10/20/2025 ("Proposal"), including but not limited to the Project Information section, unless the Project is otherwise described in Exhibit A to this Agreement (which section or Exhibit is incorporated into this Agreement). 1. Scope of Services. The scope of Consultant's services is described in the Proposal, including but not limited to the Scope of Services section ("Services"), unless Services are otherwise described in Exhibit B to this Agreement (which section or exhibit is incorporated into this Agreement). Portions of the Services may be subcontracted. Consultant's Services do not include the investigation or detection of, nor do recommendations in Consultant's reports address the presence or prevention of biological pollutants (e.g., mold, fungi, bacteria, viruses, or their byproducts) or occupant safety issues, such as vulnerability to natural disasters, terrorism, or violence. If Services include purchase of software, Client will execute a separate software license agreement. Consultant's findings, opinions, and recommendations are based solely upon data and information obtained by and furnished to Consultant at the time of the Services. 2 Acceptance/ Termination. Client agrees that execution of this Agreement is a material element of the consideration Consultant requires to execute the Services, and if Services are initiated by Consultant prior to execution of this Agreement as an accommodation for Client at Client's request, both parties shall consider that commencement of Services constitutes formal acceptance of all terms and conditions of this Agreement. Additional terms and conditions may be added or changed only by written amendment to this Agreement signed by both parties. In the event Client uses a purchase order or other form to administer this Agreement, the use of such form shall be for convenience purposes only and any additional or conflicting terms it contains are stricken. This Agreement shall not be assigned by either party without prior written consent of the other party. Either party may terminate this Agreement or the Services upon written notice to the other. In such case, Consultant shall be paid costs incurred and fees earned to the date of termination plus reasonable costs of closing the Project. 3 Change Orders. Client may request changes to the scope of Services by altering or adding to the Services to be performed. If Client so requests, Consultant will return to Client a statement (or supplemental proposal) of the change setting forth an adjustment to the Services and fees for the requested changes. Following Client's review, Client shall provide written acceptance. If Client does not follow these procedures, but instead directs, authorizes, or permits Consultant to perform changed or additional work, the Services are changed accordingly and Consultant will be paid for this work according to the fees stated or its current fee schedule. If project conditions change materially from those observed at the site or described to Consultant at the time of proposal, Consultant is entitled to a change order equitably adjusting its Services and fee. 4 Compensation and Terms of Payment. Client shall pay compensation for the Services performed at the fees stated in the Proposal, including but not limited to the Compensation section, unless fees are otherwise stated in Exhibit C to this Agreement (which section or Exhibit is incorporated into this Agreement). If not stated in either, fees will be according to Consultant's current fee schedule. Fee schedules are valid for the calendar year in which they are issued. Fees do not include sales tax. Client will pay applicable sales tax as required by law. Consultant may invoice Client at least monthly and payment is due upon receipt of invoice. Client shall notify Consultant in writing, at the address below, within 15 days of the date of the invoice if Client objects to any portion of the charges on the invoice, and shall promptly pay the undisputed portion. Client shall pay a finance fee of 1.5% per month, but not exceeding the maximum rate allowed by law, for all unpaid amounts 30 days or older. Client agrees to pay all collection -related costs that Consultant incurs, including attorney fees. Consultant may suspend Services for lack of timely payment. It is the responsibility of Client to determine whether federal, state, or local prevailing wage requirements apply and to notify Consultant if prevailing wages apply. If it is later determined that prevailing wages apply, and Consultant was not previously notified by Client, Client agrees to pay the prevailing wage from that point forward, as well as a retroactive payment adjustment to bring previously paid amounts in line with prevailing wages. Client also agrees to defend, indemnify, and hold harmless Consultant from any alleged violations made by any governmental agency regulating prevailing wage activity for failing to pay prevailing wages, including the payment of any fines or penalties. 5. Third Party Reliance. This Agreement and the Services provided are for Consultant and Client's sole benefit and exclusive use with no third party beneficiaries intended. Reliance upon the Services and any work product is limited to Client, and is not intended for third parties other than those who have executed Consultant's reliance agreement, subject to the prior approval of Consultant and Client. 6. LIMITATION OF LIABILITY. CLIENT AND CONSULTANT HAVE EVALUATED THE RISKS AND REWARDS ASSOCIATED WITH THIS PROJECT, INCLUDING CONSULTANT'S FEE RELATIVE TO THE RISKS ASSUMED, AND AGREE TO ALLOCATE CERTAIN OF THE ASSOCIATED RISKS. TO THE FULLEST EXTENT PERMITTED BY LAW, THE TOTAL AGGREGATE LIABILITY OF CONSULTANT (AND ITS RELATED CORPORATIONS AND EMPLOYEES) TO CLIENT AND THIRD PARTIES GRANTED RELIANCE IS LIMITED TO THE GREATER OF $50,000 OR CONSULTANT'S FEE, FOR ANY AND ALL INJURIES, DAMAGES, CLAIMS, LOSSES, OR EXPENSES (INCLUDING ATTORNEY AND EXPERT FEES) ARISING OUT OF CONSULTANT'S SERVICES OR THIS AGREEMENT. PRIOR TO ACCEPTANCE OF THIS AGREEMENT AND UPON WRITTEN REQUEST FROM CLIENT, CONSULTANT MAY NEGOTIATE A HIGHER LIMITATION FOR ADDITIONAL CONSIDERATION IN THE FORM OF A SURCHARGE TO BE ADDED TO THE AMOUNT STATED IN THE COMPENSATION SECTION OF THE PROPOSAL. THIS LIMITATION SHALL APPLY REGARDLESS OF AVAILABLE PROFESSIONAL LIABILITY INSURANCE COVERAGE, CAUSE(S), OR THE THEORY OF LIABILITY, INCLUDING NEGLIGENCE, INDEMNITY, OR OTHER RECOVERY. THIS LIMITATION SHALL NOT APPLY TO THE EXTENT THE DAMAGE IS PAID UNDER CONSULTANT'S COMMERCIAL GENERAL LIABILITY POLICY. 7 Indemnity/Statute of Limitations. Consultant and Client shall indemnify and hold harmless the other and their respective employees from and against legal liability for claims, losses, damages, and expenses to the extent such claims, losses, damages, or expenses are legally determined to be caused by their negligent acts, errors, or omissions. In the event such claims, losses, damages, or expenses are legally determined to be caused by the joint or concurrent negligence of Consultant and Client, they shall be borne by each party in proportion to its own negligence under comparative fault principles. Neither party shall have a duty to defend the other party, and no duty to defend is hereby created by this indemnity provision and such duty is explicitly waived under this Agreement. Causes of action arising out of Consultant's Services or this Agreement regardless of cause(s) or the theory of liability, including negligence, indemnity or other recovery shall be deemed to have accrued and the applicable statute of limitations shall commence to run not later than the date of Consultant's substantial completion of Services on the project. 8. Warranty. Consultant will perform the Services in a manner consistent with that level of care and skill ordinarily exercised by members of the profession currently practicing under similar conditions in the same locale. EXCEPT FOR THE STANDARD OF CARE PREVIOUSLY STATED, CONSULTANT MAKES NO WARRANTIES OR GUARANTEES, EXPRESS OR IMPLIED, RELATING TO CONSULTANT'S SERVICES AND CONSULTANT DISCLAIMS ANY IMPLIED WARRANTIES OR WARRANTIES IMPOSED BY LAW, INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. 9. Insurance. Consultant represents that it now carries, and will continue to carry: (i) workers' compensation insurance in accordance with the laws of the states having jurisdiction over Consultant's employees who are engaged in the Services, and employer's liability insurance ($1,000,000); (ii) commercial general liability insurance ($2,000,000 occ / $4,000,000 agg); (iii) automobile liability insurance ($2,000,000 B.I. and P.D. combined single limit); (iv) umbrella liability ($5,000,000 occ / agg); and (v) professional liability insurance ($1,000,000 claim / agg). Certificates of insurance will be provided upon request. Client and Consultant shall waive subrogation against the other party on all general liability and property coverage. Page 1 of 2 Rev. 11-22 Docusign Envelope ID: 9CCE78DA-7F59-4322-BCA8-0C8C8C479D40 jlerracon Reference Number. P13255066 10. CONSEQUENTIAL DAMAGES. NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR LOSS OF PROFITS OR REVENUE; LOSS OF USE OR OPPORTUNITY; LOSS OF GOOD WILL; COST OF SUBSTITUTE FACILITIES, GOODS, OR SERVICES; COST OF CAPITAL; OR FOR ANY SPECIAL, CONSEQUENTIAL, INDIRECT, PUNITIVE, OR EXEMPLARY DAMAGES. 11. Dispute Resolution. Client shall not be entitled to assert a Claim against Consultant based on any theory of professional negligence unless and until Client has obtained the written opinion from a registered, independent, and reputable engineer, architect, or geologist that Consultant has violated the standard of care applicable to Consultant's performance of the Services. Client shall provide this opinion to Consultant and the parties shall endeavor to resolve the dispute within 30 days, after which Client may pursue its remedies at law. This Agreement shall be governed by and construed according to Iowa law. 12. Subsurface Explorations. Subsurface conditions throughout the site may vary from those depicted on logs of discrete borings, test pits, or other exploratory services. Client understands Consultant's layout of boring and test locations is approximate and that Consultant may deviate a reasonable distance from those locations. Consultant will take reasonable precautions to reduce damage to the site when performing Services; however, Client accepts that invasive services such as drilling or sampling may damage or alter the site. Site restoration is not provided unless specifically included in the Services. 13. Testing and Observations. Client understands that testing and observation are discrete sampling procedures, and that such procedures indicate conditions only at the depths, locations, and times the procedures were performed. Consultant will provide test results and opinions based on tests and field observations only for the work tested. Client understands that testing and observation are not continuous or exhaustive, and are conducted to reduce - not eliminate - project risk. Client shall cause all tests and inspections of the site, materials, and Services performed by Consultant to be timely and properly scheduled in order for the Services to be performed in accordance with the plans, specifications, contract documents, and Consultant's recommendations. No claims for loss or damage or injury shall be brought against Consultant by Client or any third party unless all tests and inspections have been so performed and Consultant's recommendations have been followed. Unless otherwise stated in the Proposal, Client assumes sole responsibility for determining whether the quantity and the nature of Services ordered by Client is adequate and sufficient for Client's intended purpose. Client is responsible (even if delegated to contractor) for requesting services, and notifying and scheduling Consultant so Consultant can perform these Services. Consultant is not responsible for damages caused by Services not performed due to a failure to request or schedule Consultant's Services. Consultant shall not be responsible for the quality and completeness of Client's contractor's work or their adherence to the project documents, and Consultant's performance of testing and observation services shall not relieve Client's contractor in any way from its responsibility for defects discovered in its work, or create a warranty or guarantee. Consultant will not supervise or direct the work performed by Client's contractor or its subcontractors and is not responsible for their means and methods. The extension of unit prices with quantities to establish a total estimated cost does not guarantee a maximum cost to complete the Services. The quantities, when given, are estimates based on contract documents and schedules made available at the time of the Proposal. Since schedule, performance, production, and charges are directed and/or controlled by others, any quantity extensions must be considered as estimated and not a guarantee of maximum cost. 14. Sample Disposition, Affected Materials, and Indemnity. Samples are consumed in testing or disposed of upon completion of the testing procedures (unless stated otherwise in the Services). Client shall fumish or cause to be furnished to Consultant all documents and information known or available to Client that relate to the identity, location, quantity, nature, or characteristic of any hazardous waste, toxic, radioactive, or contaminated materials ("Affected Materials") at or near the site, and shall immediately transmit new, updated, or revised information as it becomes available. Client agrees that Consultant is not responsible for the disposition of Affected Materials unless specifically provided in the Services, and that Client is responsible for directing such disposition. In no event shall Consultant be required to sign a hazardous waste manifest or take title to any Affected Materials. Client shall have the obligation to make all spill or release notifications to appropriate governmental agencies. The Client agrees that Consultant neither created nor contributed to the creation or existence of any Affected Materials conditions at the site and Consultant shall not be responsible for any claims, losses, or damages allegedly arising out of Consultant's performance of Services hereunder, or for any claims against Consultant as a generator, disposer, or arranger of Affected Materials under federal, state, or local law or ordinance. 15. Ownership of Documents. Work product, such as reports, logs, data, notes, or calculations, prepared by Consultant shall remain Consultant's property. Proprietary concepts, systems, and ideas developed during performance of the Services shall remain the sole property of Consultant. Files shall be maintained in general accordance with Consultant's document retention policies and practices. 16. Utilities. Unless otherwise stated in the Proposal, Client shall provide the location and/or arrange for the marking of private utilities and subterranean structures. Consultant shall take reasonable precautions to avoid damage or injury to subterranean structures or utilities. Consultant shall not be responsible for damage to subterranean structures or utilities that are not called to Consultant's attention, are not correctly marked, including by a utility locate service, or are incorrectly shown on the plans furnished to Consultant. 17. Site Access and Safety. Client shall secure all necessary site related approvals, permits, licenses, and consents necessary to commence and complete the Services and will execute any necessary site access agreement. Consultant will be responsible for supervision and site safety measures for its own employees, but shall not be responsible for the supervision or health and safety precautions for any third parties, including Client's contractors, subcontractors, or other parties present at the site. In addition, Consultant retains the right to stop work without penalty at any time Consultant believes it is in the best interests of Consultant's employees or subcontractors to do so in order to reduce the risk of exposure to unsafe site conditions. Client agrees it will respond quickly to all requests for information made by Consultant related to Consultant's pre -task planning and risk assessment processes. Consultant: Terracon Consultants, Inc. By: Name/Title: Address: Phone: Client: Date 10/20/2025 By: Jayon P. Heinz / Depadfinent Manager / Geotechnical Services 3105 Capital Way, Ste 5 Cedar Falls, IA 50613-7030 (319) 277-4016 Fax: Email: Jason.Heinz@terracon.com r-CityttatAtitreeterloo IA x ALIA IA, tf AY1L Date: 10/20/2025 D0525D7S7\AC8449... Name/Title: Quentin Hart / Mayor Address: 715 Mulberry St Waterloo, IA 50703-5714 Phone: (319) 291-4301 Fax: Email: Mayor@WATERLOO-IA.org Page 2 of 2 Rev. 11-22 Docusign Envelope ID: 9CCE78DA-7F59-4322-BCA8-0C8C8C479D40 Proposal for Geotechnical Engineering Services Airline Highway Utility Improvements I Waterloo, Iowa October 20, 2025 I Terracon Proposal No. P13255066 Exhibit A - Project Understanding ierracon Our Scope of Services is based on our understanding of the project, as described by the City of Waterloo, and the expected site conditions as described below. Aspects of the project, undefined or assumed, are highlighted below. We request the City of Waterloo verify the information prior to our initiation of field exploration activities. Planned Construction Item Information Provided Project Description Grading and Excavations Description Electronic communications were provided by Matt Schindel with the City of Waterloo detailing the scope of services to be provided. The project consists of installing approximately 4,496 feet of 12- inch diameter sanitary sewer pipe along CN railroad and Airport Boulevard, and approximately 1,842 feet of 24-inch diameter sanitary sewer pipe along Airline Highway to west of Diagonal Street. We understand that sanitary sewer installation is mostly planned to be performed by cut and cover along utility easements and Airport Boulevard and W. Airline Highway crossings. The CN railroad crossing is planned to be installed using a trenchless method. We expect that a permanent steel casing will be provided to encase the sanitary sewer pipe at the CN railroad crossing. The project also includes installing approximately 539 feet of 24-inch diameter storm sewer pipe, 763 feet of 36-inch diameter storm sewer pipe, and 293 feet of 48-inch diameter storm sewer along the west property line of 3470 W. Airline Highway, along W. Airline Highway, and along the east property line of 3553 W. Airline Highway. Storm sewer installation is planned to be performed by cut and cover along utility easements and the W. Airline Highway crossing. Modifications to the existing grades are anticipated to be 1 foot or less. Based on the information provided by the City of Waterloo, we anticipate sanitary sewer inverts will range from about 16 feet to about 27 feet in depth, and storm sewer inverts will range from about 12.5 feet to 18 feet below existing grades. Facilities I Environmental I Geotechnical I Materials Docusign Envelope ID: 9CCE78DA-7F59-4322-BCA8-0C8C8C479D40 Proposal for Geotechnical Engineering Services Airline Highway Utility Improvements I Waterloo, Iowa October 20, 2025 I Terracon Proposal No. P13255066 Site Location and Anticipated Conditions Item Site Location Existing Improvements Existing Topography Site Access Expected Subsurface Conditions ierracon Description The project is generally located along CN railroad, Airport Boulevard, and Airline Highway in Waterloo, Iowa. Latitude/Longitude (approximate) 42.5433° /-92.3959° (See Exhibit D) City streets with associated infrastructure. Various vegetation within property easements, HMA and PCC pavements with gravel shoulders are also present. Based on the plan and profile drawings provided, existing grade near the west end of the sanitary sewer is at about elevation 870 feet and the east end is at about 862 feet. Based on the plan and profile drawings provided, existing grade near the northwest end of the storm sewer is at about elevation 868 feet and the southeast end at the drainage swale is at about 852 feet. We expect the site and exploration locations will be accessible to our drilling equipment and support vehicle. Our experience near the vicinity of the proposed development and review of publicly available information indicates subsurface conditions include fill soils over native, granular soils. Facilities I Environmental I Geotechnical I Materials Docusign Envelope ID: 9CCE78DA-7F59-4322-BCA8-0C8C8C479D40 Proposal for Geotechnical Engineering Services Airline Highway Utility Improvements I Waterloo, Iowa October 20, 2025 I Terracon Proposal No. P13255066 Exhibit B - Scope of Services iiierracon Our proposed Scope of Services consists of field exploration, laboratory testing, and engineering/project delivery. These services are described in the following sections. Field Exploration Terracon and Waterloo developed the following boring locations and depths. Please note that the proposed depths of soil borings at the crossing of CN Railway have been increased from that requested to meet their requirements, and an additional boring is recommended on the north side of the railroad tracks. Number of Borings 10 1 3 12 (additional boring) Planned Boring Depth (feet) 25 feet / Auger refusal 40 feet 25 feet / Auger refusal 40 feet Planned Location Sanitary Sewer CN Railway Crossing/Encroachment Storm Sewer North side of CN Railway Crossing/Encroachment 1. The potential boring locations are on the Anticipated Exploration Plan. 2. We propose an additional boring be performed for the trenchless utility crossing of CN Railway right-of-way, north of the existing trackage. We also suggest that the manhole boring on the south side of the track be relocated such that both borings lie within the trenchless installation pits. Boring Layout: It is our preference that the City of Waterloo survey the 'as -drilled' boring locations and provide surface elevations and latitude and longitudes at the boring locations. We will use handheld GPS equipment to locate borings with an estimated horizontal accuracy of +/-20 feet. Field measurements from existing site features may be utilized. We will coordinate with your Project Surveyor to include surface elevations in our project information, if so requested. Subsurface Exploration Procedures: We will advance the borings with a rotary drill rig using continuous flight augers techniques. Soil sampling will be performed at intervals of 2.5 feet in the upper 20 feet and every 5 feet thereafter for each boring. Additional soil sampling will be performed for the CN Railway crossing and include Facilities I Environmental I Geotechnical I Materials Docusign Envelope ID: 9CCE78DA-7F59-4322-BCA8-0C8C8C479D40 Proposal for Geotechnical Engineering Services Airline Highway Utility Improvements I Waterloo, Iowa October 20, 2025 I Terracon Proposal No. P13255066 Terracon performing sampling at intervals of 2.5 feet to depths of 30 feet. Soil sampling is typically performed using thin -wall tube and/or split -barrel sampling procedures. The split -barrel samplers are driven in accordance with the standard penetration test (SPT). In addition, we will observe and record groundwater levels during drilling and sampling. Our exploration team will prepare field boring logs as part of standard drilling operations including sampling depths, penetration distances, and other relevant sampling information. Field logs will include visual classifications of materials observed during drilling and our interpretation of subsurface conditions between samples. The samples will be containerized and transported to our soil laboratory. Property Disturbance: Terracon will make reasonable efforts to reduce damage to the property. However, it should be understood that in the normal course of our work some disturbance could occur including rutting of the ground surface and damage to the pavement surface. We will backfill our boreholes with auger cuttings and/or bentonite chips upon completion. We anticipate the W. Airline Highway borings will be performed on its gravel shoulder or on the individual properties. Any pavement penetrations will be patched with low shrink concrete or cold patch asphalt. Our services do not include repair of the site beyond backfilling our boreholes and patching existing pavements. Excess auger cuttings will be removed from the site. Because backfill material often settles below the surface after a period, we recommend boreholes to be periodically checked and backfilled, if necessary. We can provide this service or grout the boreholes for additional fees at your request. Safety Terracon is 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 observed while drilling will be noted on our logs. Exploration efforts require borings/excavations into the subsurface. Therefore, Terracon will comply with local regulations to request a utility location service through the Iowa One Call system. We will consult with the landowner/client regarding potential utilities or other unmarked underground hazards. Based upon the results of this consultation, we will consider the need for alternative subsurface exploration methods as the safety of our field crew is a priority. Private Utility Locations and Clearance: Terracon will evaluate the presence of existing pipes/utilities near the boring locations by using geophysical methods including Ground Penetrating Radar (GPR), and Electromagnetic Line Locator (EMLL) and metal Facilities I Environmental I Geotechnical I Materials Docusign Envelope ID: 9CCE78DA-7F59-4322-BCA8-0C8C8C479D40 Proposal for Geotechnical Engineering Services Airline Highway Utility Improvements I Waterloo, Iowa October 20, 2025 I Terracon Proposal No. P13255066 Terracon detector. In general, these methods can indicate if anomalies exist in the subsurface; however, the physical nature of the anomaly cannot always be determined. The following paragraphs describe the methods planned to be used to identify underground utilities and potential obstructions. Ground Penetrating Radar (GPR) will be used to scan the area within a 20 ft radius of the boring. A Geophysical Survey Systems Inc. (GSSI) 400 MHz antenna will be utilized in each area. GPR utilizes radio waves to detect changes in the subsurface of the area being scanned. Changes in the signal generally indicate material property changes such as, but not limited to, electromagnetic conductivity and dielectric constant, which in some cases can be qualitatively linked to other material properties such as density, moisture, or material type, and can be effective in identifying the presence and location of items such as voids, rubble, buried concrete, tanks, underground utilities, and embedded reinforcing steel in concrete and masonry structures, among other things. The instrument is capable of producing real-time images and recording images. The geophysical survey methods are subject to the following limitations: ■ The GPR penetration depth is not expected to be substantial enough to discern utility locations through the existing concrete. GPR penetration is typically 4 to 8 feet in soil but is unknown until field work commences. ■ Spacing of any concrete reinforcing steel should be more than 6 inches on center. ■ Surfaces should be clean and free of debris. Any obstructed areas will not be scanned. ■ A utility may not be detectable if: in poor soils; beneath present above -ground obstructions; near other underground utilities; deeper than anticipated survey depths; or made of plastic or other undetectable material. Electromagnetic Line Location (EMLL) would also be performed in conjunction with the GPR. Terracon would utilize an electromagnetic pipe and cable locator system consisting of an RD-8000 PDL Locator. The locator can locate utilities utilizing multiple measurement modes using a radio spectrum scan, a passive frequency detection scan (50 to 60Hz for electrical lines), and a metal detector scan. This instrument can also perform active signal detection by using a direct connection to utilities that are accessible at the surface (e.g., transformer boxes or surface access points). Locations of utilities or obstructions encountered will be marked on the ground surface with paint or flags and pictures will be taken for documentation in Terracon's Exploration Directive/Work Plan. Please note that this process is intended to safely clear the boring locations, and it is not intended to map all utilities on the site. The ASCE 38-02 standard for Subsurface Utility Engineering and mapping will not be followed, but that level of service could be provided to the client upon request. Facilities I Environmental I Geotechnical I Materials Docusign Envelope ID: 9CCE78DA-7F59-4322-BCA8-0C8C8C479D40 Proposal for Geotechnical Engineering Services Airline Highway Utility Improvements I Waterloo, Iowa October 20, 2025 I Terracon Proposal No. P13255066 Terracon 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 landowner/client of their responsibilities in identifying private underground utilities. Site Access: Terracon must be granted access to the site by the property owner. Without information to the contrary, we consider acceptance of this proposal as authorization to access the property for conducting field exploration in accordance with the Scope of Services. We have considered that a right-of-way access agreement will not be needed to drill the soil borings in railroad right-of-way. Terracon maintains a bond with the City of Waterloo to perform work in its easements or right-of-way. Terracon will conduct field exploration services during normal business hours (Monday through Friday between 7:OOam and 6:OOpm). If our exploration must take place over a weekend, at night, or outside normal working hours, please contact us so we can adjust our schedule and fee. Traffic Control: For the work scope of this cost estimate, we have budgeted for subcontracting traffic control services consisting of 'Road Work Ahead' signs and flaggers during our drilling activities on W. Airline Highway, which is anticipated to take one day. For the remainder of our field work within ditches and adjacent properties, we have budgeted for 'Road Work Ahead' signs for work in road right-of-way to notify motorists of our presence. Laboratory Testing The project engineer will review field data and assign laboratory tests to understand the engineering properties of various soil strata. Exact types and number of tests cannot be defined until completion of fieldwork, but we anticipate the following laboratory testing will be performed: ■ Water content ■ Dry Density ■ Atterberg limits ■ Sieve analysis through the No. 200 ■ Combined sieve and hydrometer ■ Soil pH and sulfates Our laboratory testing program will include examination of soil samples by an engineer or geologist. Based on the results of our field and laboratory programs, we will describe Facilities I Environmental I Geotechnical I Materials Docusign Envelope ID: 9CCE78DA-7F59-4322-BCA8-0C8C8C479D40 Proposal for Geotechnical Engineering Services Airline Highway Utility Improvements I Waterloo, Iowa October 20, 2025 I Terracon Proposal No. P13255066 ierracon and classify soil samples in general accordance with the Unified Soil Classification System (USCS). Engineering and Project Delivery Report for Utility installations via cut and cover: The results of our field and laboratory programs will be evaluated, and a geotechnical engineering report will be prepared under the supervision of a licensed professional engineer. The geotechnical engineering report will provide the following: ■ Stratified boring logs with field and laboratory data ■ Groundwater levels observed during and after the completion of drilling ■ Site Location and Exploration Plans ■ Subsurface exploration procedures ■ General site and project descriptions ■ Summaries of the subsurface soil and groundwater conditions encountered ■ Utility trench excavation, pipe support, and backfilling considerations ■ General earthwork recommendations, including: • Backfill material types, including suitability of on -site soils • Structural fill compaction criteria • General grading, drainage, dewatering, and construction considerations Report for the CN Railway Crossing: Chicago Central and Pacific Railroad (d.b.a. Canadian National Railway) prefers that a separate Geotechnical Engineering report be issued for clarity for the railroad crossing trenchless utility installation. The results of our field and laboratory programs will be evaluated, and a geotechnical engineering report will be prepared under the supervision of a licensed professional engineer. The geotechnical engineering report will provide the following in accordance with CN's Crossing/Encroachment Application Packet: ■ Stratified boring logs with field and laboratory data ■ Groundwater levels observed during and after the completion of drilling ■ Site Location and Exploration Plan ■ Subsurface exploration procedures ■ General project and site descriptions ■ Description of subsurface conditions ■ Geotechnical discussion regarding the feasibility of a trenchless installation ■ Geotechnical parameters for the applicable layers, including: • Unit Weight • Angle of internal friction or cohesion Facilities I Environmental I Geotechnical I Materials Docusign Envelope ID: 9CCE78DA-7F59-4322-BCA8-0C8C8C479D40 Proposal for Geotechnical Engineering Services Airline Highway Utility Improvements I Waterloo, Iowa October 20, 2025 I Terracon Proposal No. P13255066 ierracon • Rankine at -rest earth pressure coefficient ■ General design and construction considerations for the trenchless installation ■ General dewatering considerations ■ Estimated ground surface settlement considering an overcut dimension ■ Estimated ground settlement resulting from dewatering ■ Recommended settlement monitoring program ■ Settlement point layout ■ Discussion of potential mitigative methods to address excessive settlement ■ Geotechnical discussion regarding pre -construction surveys and construction monitoring In addition to an emailed report, your project will be delivered using our Compass 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. We welcome the opportunity to have project kickoff conversations with the team to discuss key elements of the project and demonstrate features of the portal. The typical delivery process includes the following: ■ Project Planning - Proposal information, schedule and anticipated exploration plan ■ Site Characterization - Findings of the site exploration and laboratory results ■ Subsurface Exploration Report When services are complete, we upload a printable version of our Geotechnical Engineering report, including the professional engineer's seal and signature. Previous submittals, collaboration, and the report will be maintained in our system. This allows for future reference and integration into subsequent aspects of our services as the project goes through final design and construction. Additional Services In addition to the services noted above, the following are often associated with geotechnical engineering services. Fees for 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 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 and installation methods. Our review will include a written statement conveying our opinions relating to the plans and specifications' consistency with our geotechnical engineering recommendations. Facilities I Environmental I Geotechnical I Materials Docusign Envelope ID: 9CCE78DA-7F59-4322-BCA8-0C8C8C479D40 Proposal for Geotechnical Engineering Services Airline Highway Utility Improvements I Waterloo, Iowa October 20, 2025 I Terracon Proposal No. P13255066 iiierracon Review of Contractor's Work/Construction Plan: In some cases, CN does not accept the contractor's initial plan for construction, and CN can request that Terracon provide a statement regarding the suitability of the contractor's proposed methodology. Upon request, Terracon will review the contractor's plan, provide suggestions and responses to the team, and prepare and submit a geotechnical engineering memorandum or a revised Geotechnical Engineering Report. Some Exclusions to Terracon's Scope of Services: Please note that our proposed scope of services and fees do not include: ■ Time to negotiate and coordinate access with landowners or tenants other than the City of Waterloo. ■ Site clearing/grubbing and repair of damage to existing landscape and surfaces. ■ Transportation and disposal of impacted 'soil' (i.e., investigation derived waste). ■ Preparation of the Contractor's Work Plan, preparation of a contingency plan and notification procedure that can be implemented during construction, a dewatering plan/program, and a dedicated settlement monitoring program. - Please note that it will be the responsibility of the contractor to prepare these items in their Work/Construction Plan. ■ Evaluation of required jacking forces and review of jacking force calculations. ■ Review of temporary dewatering system plans and calculations. ■ Railroad fees associated with work in the railroad right-of-way. ■ Preparation of plan and profile drawings and project specifications. ■ Design of temporary earth retention systems and dewatering systems with the zone of influence of the trackage, as defined by CN Railway. If these excluded services are desired by the owner/client, we should be notified so we can adjust our scope of services and fee estimate. Terracon's scope of services can require revisions once additional project details become available. Facilities I Environmental I Geotechnical I Materials Docusign Envelope ID: 9CCE78DA-7F59-4322-BCA8-0C8C8C479D40 Proposal for Geotechnical Engineering Services Airline Highway Utility Improvements I Waterloo, Iowa October 20, 2025 I Terracon Proposal No. P13255066 iiierracon Exhibit C - Compensation and Project Schedule Compensation Based upon our understanding of the project as summarized in Exhibit A, and our planned scope of services outlined in Exhibit B, we estimate the following fees for this project. Item Subsurface Exploration with Traffic Control, Soil Laboratory Testing, and Geotechnical Engineering Report for the Cut and Cover Utility Installations One additional Soil Boring and Soil Laboratory Testing, and Geotechnical Engineering Report for the Trenchless Utility Installation Total Additional Service - Private Utility Locations and Markings (only upon request) Estimated Fee $19,300 to $22,850 $7,500 to $8,500 $26,800 to $31,350 $2,500 Facilities I Environmental I Geotechnical I Materials Docusign Envelope ID: 9CCE78DA-7F59-4322-BCA8-0C8C8C479D40 Proposal for Geotechnical Engineering Services Airline Highway Utility Improvements I Waterloo, Iowa October 20, 2025 I Terracon Proposal No. P13255066 Geotechnical Engineering Services for Cut and Cover Utility Installation ,,iferracon IQUANTITY UNIT PRICE UNIT DESCRIPTION EXTENSION FIELD SERVICES Daily Pre -Task Planning / Tailgate Meetings ATV -Mounted Drill Rig & Support Equipment Auger Drilling & Sampling (0-20ft.) Auger Drilling & Sampling (20-40ft.) Pavement Patching Traffic Control Flaggers (subcontractors) Traffic Control Signs (subcontractors) Drilling Supervisor (Staking, IOC, Work Plan) ESTIMATED SUBTOTAL FOR FIELD SERVICES Refer to Exhibit B for the Scope of Services. 1.5 2.0 hour $225.00 $ 337.50 - 450.00 3.0 - 4.0 day $950.00 $ 2,850.00 - 3,800.00 280 - 280 foot $16.50 $ 4,620.00 - 4,620.00 85 - 85 foot $18.00 $ 1,530.00 - 1,530.00 0 - 6 each $25.00 $ - 150.00 1 - 1 day $900.00 $ 900.00 - 900.00 2 - 3 day $350.00 $ 700.00 1,050.00 8 - 10 hour $135.00 $ 1,080.00 - 1,350.00 Subtotal $ 12,017.50 - 13,850.00 $ 12,000.00 to $ 13,850.00 SOIL LABORATORY SERVICES Stratification of Boring Logs 7 - 8 hour $120.00 Water Content & Visual -Manual Classification 115 - 131 each $10.00 Dry Density (Thin -Wall Tube Sample) 2 - 3 each $10.00 Atterberg Limits - Three Point Method 0 - 1 each $125.00 Sieve Analysis (Washed) 5 - 6 each $125.00 Combined Hydrometer and Sieve 2 - 3 each $185.00 Unconfined Compression Test 0 - 2 each $30.00 Organic Content - Loss on Ignition 0 - 0 each $75.00 Moisture -density Relationship of Soil (Standard 'Proctor') 0 - 0 each $165.00 pH and Soluble Sulfates - Soil 2 - 2 each $200.00 Subtotal ESTIMATED SUBTOTAL FOR SOIL LABORATORY SERVICES $ 840.00 - 960.00 $ 1,150.00 - 1,310.00 $ 20.00 - 30.00 $ - 125.00 $ 625.00 - 750.00 $ 370.00 - 555.00 $ - 60.00 $ - - $ - - $ 400.00 - 400.00 $ 3,405.00 - 4,190.00 $ 3,400.00 to $ 4,200.00 GEOTECHNICAL ENGINEERING SERVICES Senior Engineering Consultant, P.E. 2 - 3 hour $200.00 $ 400.00 - 600.00 Project Engineer 3 - 4 hour $140.00 $ 420.00 - 560.00 Senior Staff Geologist 22 - 26 hour $120.00 $ 2,640.00 - 3,120.00 Administration / Secretarial Services 5 - 6 hour $90.00 $ 450.00 - 540.00 Subtotal $ 3,910.00 - $ 4,820.00 ESTIMATED SUBTOTAL FOR GEOTECHNICAL ENGINEERING SERVICES $ 3,900.00 to $ 4,800.00 ESTIMATED TOTAL FOR SCOPE OF SERVICES $ 19,300.00 to $ 22,850.00 ADDITIONAL SERVICES Private Utility Locating (by Terracon personnel) 1 - 1 Day $2,500.00 $ 2,500.00 - 2,500.00 ESTIMATED TOTAL FOR SCOPE OF SERVICES $ 2,500.00 to $ 2,500.00 Facilities I Environmental I Geotechnical I Materials Docusign Envelope ID: 9CCE78DA-7F59-4322-BCA8-0C8C8C479D40 Proposal for Geotechnical Engineering Services Airline Highway Utility Improvements I Waterloo, Iowa October 20, 2025 I Terracon Proposal No. P13255066 Geotechnical Engineering Services for Trenchless Utility Installation ierracon DESCRIPTION QUANTITY UNIT UNIT PRICE EXTENSION FIELD SERVICES Auger Drilling & Sampling (0-20ft.) Auger Drilling & Sampling (20-40ft.) ESTIMATED SUBTOTAL FOR FIELD SERVICES Refer to Exhibit B for the Scope of Services. Assumes the additional boring is performed along with the General Utility exploration. 20 - 20 foot $16.50 $ 330.00 - 330.00 20 - 20 foot $18.00 $ 360.00 - 360.00 Subtotal $ 690.00 - 690.00 $ 700.00 to $ 700.00 SOIL LABORATORY SERVICES Stratification of Boring Logs 0.5 - 0.5 hour $120.00 $ 60.00 - 60.00 Water Content & Visual -Manual Classification 14 - 14 each $10.00 $ 140.00 - 140.00 Subtotal $ 200.00 - 200.00 ESTIMATED SUBTOTAL FOR SOIL LABORATORY SERVICES $ 200.00 to $ 200.00 GEOTECHNICAL ENGINEERING SERVICES Senior Engineering Consultant, P.E. 10 - 12 hour $200.00 $ 2,000.00 - 2,400.00 Project Engineer 3 - 4 hour $140.00 $ 420.00 - 560.00 Senior Staff Geologist 34 - 38 hour $120.00 $ 4,080.00 - 4,560.00 Administration / Secretarial Services 1 - 1 hour $90.00 $ 90.00 - 90.00 Subtotal $ 6,590.00 - $ 7,610.00 ESTIMATED SUBTOTAL FOR GEOTECHNICAL ENGINEERING SERVICES $ 6,600.00 to $ 7,600.00 ESTIMATED TOTAL FOR SCOPE OF SERVICES $ 7,500.00 to $ 8,500.00 Please note that we will only bill for the services performed in accordance with the unit rates in the prior tables. If revisions to our scope of services are requested, we would contact you for approval prior to initiating any additional or alternate services. Our invoice will be submitted upon completion of our scope to the addressee of this proposal unless we are notified otherwise. Project Schedule We developed a schedule to complete the Scope of Services based upon our existing availability and understanding of your project schedule. However, our schedule does not account for delays in field exploration beyond our control, such as weather conditions, delays resulting from utility clearance or lack of permission to access the boring locations. In the event the schedule provided is inconsistent with your needs, please contact us so we may consider alternatives. Delivery Kickoff Call with Client Site Characterization Schedule 1, 2 5 days after notice to proceed 10 days after completion of field program Facilities I Environmental I Geotechnical I Materials Docusign Envelope ID: 9CCE78DA-7F59-4322-BCA8-0C8C8C479D40 Proposal for Geotechnical Engineering Services Airline Highway Utility Improvements I Waterloo, Iowa October 20, 2025 I Terracon Proposal No. P13255066 Delivery Geotechnical Engineering Report iiierracon Schedule 1' 2 20 to 25 days after completion of field program 1. Upon receipt of your notice to proceed, we will activate the schedule component on Compass with anticipated dates for the delivery points noted above, as well as other pertinent events. Upon completion of our boring log stratifications and lab testing, we can provide a summary of our findings and preliminary, 'verbal' recommendations to the Client, prior to issuance of our Geotechnical Engineering Report 2. Standard workdays. We will maintain an activities calendar within on Compass. The schedule will be updated to maintain a current awareness of our plans for delivery. Preliminary recommendations can be provided prior to completion of the geotechnical engineering report. Facilities I Environmental I Geotechnical I Materials Docusign Envelope ID: 9CCE78DA-7F59-4322-BCA8-0C8C8C479D40 Proposal for Geotechnical Engineering Services Airline Highway Utility Improvements I Waterloo, Iowa October 20, 2025 I Terracon Proposal No. P13255066 Exhibit D - Site Location ierracon Castle Hill DIAGRAM IS FOR GENERAL LOCATION ONLY, AND IS NOT INTENDED FOR CONSTRUCTION PURPOSES MAP PROVIDED BY MICROSOFT BING MAPS Docusign Envelope ID: 9CCE78DA-7F59-4322-BCA8-0C8C8C479D40 Proposal for Geotechnical Engineering Services Airline Highway Utility Improvements I Waterloo, Iowa October 20, 2025 I Terracon Proposal No. P13255066 Exhibit E - Anticipated Exploration Plan • ierracon SALE I'=Yq'T47R WATERLOG AIRPORT INTERNATIONAL PAPER W AIRLINE HWY 1 1 1 PROPOSED 9TORU SEWER Additional Boring PROPOSED EGRING LCICA11DNE PEPE ORM 9DR WIDE 71 R 13. W. flFl C'l"V s)FERry. DIAGRAM IS FOR GENERAL LOCATION ONLY, AND IS NOT INTENDED FOR CONSTRUCTION PURPOSES MAP PROVIDED BY CITY OF WATERLOO