I494 Design Build Project 2 Contaminated and Regulated Materials Oversight

Location:	Minnesota
Posted:	Jul 20, 2026
Due:	Aug 20, 2026
Agency:	State Government of Minnesota
Type of Government:	State & Local
Category:	Y - Construction of Structures and Facilities
Publication URL:	To access bid details, please log in.

Brief Description: MnDOT requests responses for a Contractor to provide construction monitoring of contaminated materials and regulated waste activities for State Project (SP) 2785-462 on Interstate (I)-494. SP 2785-462 is a Design-Build project that represents the I-494 Corridor Vision from United States (US) 169 to the Minnesota River. Construction is anticipated from 2027 through 2030. Project scope includes adding E-Z Pass Lanes on I-494 from I-35W to Trunk Highway (TH) 77 in both directions, add E-Z Pass lanes in in both directions from US 169 to TH 100, reconstruct ramps and bridges at key interchanges (82nd St, I-35W, TH 77), and include upgrades to pavement, upgrade ramps, intersections, sidewalks, and bike/pedestrian infrastructure, Improve drainage to reduce flooding and runoff, and landscaping, lighting, and community-informed design features.

Date posted: 07/20/2026
Due date: 08/20/2026

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Mn Contract Number: 1063872

Exhibit C: Specifications, Duties, and Scope of Work

1 General Scope and Description

1.1 The purpose of this contract is to assist State in properly managing contaminated soil,

groundwater, sediment, waste materials, and regulated materials encountered during the

construction phase of the project and documenting the work.

1.2 State has two subject matter experts (SME) from the Office of Environmental Stewardship

(OES), Contaminated Materials Management Team (CMMT) and Regulated Materials Unit

(RMU)

1.3 State’s Engineer will additionally act as State’s Project Manager (PM).

1.4 State’s Project Management Team (PMT) will include the State’s Engineer, State’s PM, and

State’s Environmental Compliance Manager (ECM).

1.5 Contractor will assist in establishing a communication plan detailing routine notifications

with the State’s PMT and the SMEs, along with contingency communications.

1.6 Contractor will perform monitoring and documentation in accordance with the most current

MPCA, MDA, and/or MDH guidelines available at the time the work is completed, RMU

Special Provisions, CMMT Special Provisions, Response Action Plan (RAP), RAP Addenda,

Construction Contingency Plans (CCP), any regulatory approval conditions, and/or as

directed by a SME.

1.7 Monitoring will include observations of removal, handling, and disposal practices of any

contaminated soil, groundwater, other materials or structures (e.g. tanks), regulated

materials, that are encountered.

1.8 Documentation will include recording locations and depths where contaminated soil,

groundwater, and other regulated materials are initially encountered, stockpile locations,

debris areas, areas of soil reuse, dewatering operations, and disposal facilities.

1.9 Contractor will assist in drafting and/or reviewing soil, groundwater, and/or regulated

disposal documents, in support of the construction contractor’s responsibility, for obtaining

approvals for landfill disposal, recycling, and dewatering discharge permits for management

of contaminated materials, as directed by OES.

2 Project Location, Design and Construction Plans

2.1 State is conducting a long-term plan that includes improvements to address current and

future transportation issues on Interstate (I)-494, from United States (US) 169 to the

Minnesota River. The corridor will be completed in four separate construction projects,

Project One is underway and is anticipated to be completed in 2026. Project Two is

anticipated to begin in 2027 through 2030.

2.2 Project Two will: add E-Z Pass Lanes on I-494 from I-35W to Trunk Highway (TH) 77 in both

directions, add E-Z Pass lanes in in both directions from US 169 to TH 100, reconstruct ramps

and bridges at key interchanges (82nd Street, I-35W, TH 77), and include upgrades to

pavement, upgrade ramps, intersections, sidewalks, and bike/pedestrian infrastructure,

Improve drainage to reduce flooding and runoff, and landscaping, lighting, and community-

informed design features.

3 Scheduling

3.1 Construction Monitoring

Mn Contract Number: 1063872

Exhibit C: Specifications, Duties, and Scope of Work

3.1.1 Contractor will be prepared to attend up to four annual pre-

construction meeting(s) and up to eight semi-annual meetings (two for

each of the four years of construction) with SMEs to discuss response

actions and annual reporting associated with construction oversight

throughout the project timeline.

3.1.2 Contractor will be prepared to attend regular update meetings with the

construction team and the SMEs while construction activities are

occurring within special provision areas. Assume up to one meeting per

response action/special provision location.

3.1.3 Contractor will work with State to provide support to the construction

office for disposal documentation related to contaminated soil and

groundwater, and regulated materials.

3.1.4 Contractor will assist State in submittals to the appropriate regulatory

agency(s) and obtaining approvals as necessary.

3.1.5 Contractor will work with the State’s Engineer, construction contractor,

and their various subcontractors to coordinate oversight. For routine

oversight needs (such as locations known or documented with a

response action plan, special provisions, or similar document),

Contractor will arrive onsite within 24 hours of being notified to

perform construction oversight. For short notice oversight needs

(changes in schedule, change of conditions, unanticipated, or newly

discovered contaminated or regulated material oversight), Contractor

will arrive onsite within four hours of being notified.

3.1.6 Contractor will contact the State’s Project Engineer/Inspector

periodically to check on the construction contractor’s schedule.

3.1.7 Contractor will provide the status of the project, a minimum of once per

day for each day onsite, or as approved by the appropriate SME.

3.1.8 Daily field logs will be provided, a minimum of once per day for each

day onsite, or as approved by appropriate SME.

3.1.9 Contractor will track time spent on State right of way and City right of

way separately, as appropriate.

3.1.10 Contractor will invoice State monthly or as approved by State’s Contract

Manager. Contractor will mark the last project invoice as final invoice.

3.2 Response Action Plan Addendum (RAP)

3.2.1 Contractor will attend up to one meeting with the CMMT SME to discuss

the proposed RAP/CCP Addendum, if needed, prior to submitting the

draft documents.

3.2.2 Contractor will be prepared to attend up to one meeting(s) with the

CMMT SME and Minnesota Pollution Control Agency (MPCA) Brownfield

or Minnesota Department of Agriculture (MDA) project managers to

discuss the investigation results and written assurances/liability

protections.

Mn Contract Number: 1063872

Exhibit C: Specifications, Duties, and Scope of Work

4 Contaminated Materials Construction Monitoring

4.1 Excavation Monitoring

4.1.1 Contractor will determine the soil screening criteria to be used and the

limits of soil excavation in consultation with CMMT SME.

4.1.2 Contractor will perform soil monitoring to separate contaminated from

uncontaminated soil during excavation.

4.1.3 Contractor will provide Hazardous Waste Operations and Emergency

Response (HAZWOPER) (29CRF Part 1910.120, aka 40-hr) certified field

personnel who are current with annual refreshers.

4.1.4 Contractor will be able to provide field personnel who are Minnesota

Department of Health certified asbestos inspectors if needed.

4.1.5 Contractor, as directed by the CMMT SME, will assist in reviewing draft

soil and groundwater disposal documents, in support of the

construction contractor’s responsibility, for obtaining approvals for

landfill disposal and/or dewatering discharge permits for the

management of contaminated materials.

4.1.6 Soil Monitoring

4.1.6.1 Contractor will observe and document contaminated

soil within excavation limits.

4.1.6.2 Contractor will be prepared to collect and analyze soil

samples from excavation, if needed.

4.1.6.3 Determination of soil contamination will be based on

field screening measures, Phase II data, and/or as

approved by the CMMT SME.

4.1.6.4 Contractor will observe and document the contents,

location, and general condition of contaminated soil

stockpiles.

4.1.6.5 Contractor will be prepared to collect and analyze soil

samples from stockpiles, if needed.

4.1.6.6 Contractor will notify the CMMT SME and State’s PMT if

stockpiles are proposed to be located outside the

project’s construction limits and/or in poor condition.

4.1.7 Water Monitoring

4.1.7.1 Contractor will observe and document water

encountered within excavation limits, as necessary.

4.1.7.2 Contractor will identify and document the likely source

of water encountered (e.g. surface, groundwater,

runoff, storm, etc.)

4.1.7.3 Contractor will be prepared to collect and analyze water

samples from an excavation, if needed.

4.1.7.4 Determination of water contamination will be based on

Mn Contract Number: 1063872

Exhibit C: Specifications, Duties, and Scope of Work

visual and olfactory measures, Phase II data, and/or as

approved by CMMT SME.

4.1.8 Construction Dewatering

4.1.8.1 Contractor will observe and document dewatering

activities, methods, and locations, as necessary.

4.1.8.2 At the request and obtaining approval from the CMMT

SME and State’s PMT, Contractor will be prepared to

collect influent and effluent water sample(s) from

treatment system.

4.1.8.3 Determination of contamination will be based on values

in dewatering permit procured by the construction

contractor, or as approved by the CMMT SME.

4.1.9 Underground Structure Removal

4.1.9.1 Contractor will observe and document, up to one

contingency, underground structure removal within

construction limits.

4.1.9.2 Contractor will be prepared to collect and analyze soil

and groundwater samples from excavation, if needed.

4.1.10 Contractor will coordinate with the construction contractor to track all

manifests for contaminated soil to be hauled off site. As the request of

the PMT and confirmed by the CMMT SME, Contractor will sign

manifests, acting as an Authorized Agent of State; batch signing is not

allowed.

4.2 Construction Monitoring Sampling and Analysis

4.2.1 Contractor will collect up to 10 soil samples, up to 10 groundwater

samples, or as directed by the CMMT SME.

4.2.2 Soil samples will be collected from test pits, stockpiles, excavation

sidewalls, and/or bottoms.

4.2.3 Groundwater samples will be collected from dewatering operations

and/or from open excavations or as directed by CMMT SME.

4.2.4 Contractor will perform all analytical sampling in accordance with the

most current MPCA and/or MDA guidelines available at the time the

work is completed, Minnesota Department of Transportation (MnDOT)

Special Provisions, RAP, RAP Addenda, CCP, any regulatory approval

conditions, and/or as directed by CMMT SME. The CMMT SME may

adjust analytical parameters depending on field conditions.

4.2.5 The samples will be analyzed using the applicable laboratory

certification for the analytical parameters identified in this scope of

work.

4.2.5.1 For MPCA-regulated work, the samples will be analyzed

at a Minnesota Department of Health (MDH) certified

Mn Contract Number: 1063872

Exhibit C: Specifications, Duties, and Scope of Work

4.2.6

fixed based laboratory, which will include its MDH

certification number on analytical reports.

4.2.5.2 For MDA-regulated work, the samples will be analyzed

at a commercial laboratory that has an approved

Quality Assurance/Quality Control (QA/QC) Plan and

analytical methods on file with the MDA.

Contractor will analyze soil samples for the following parameters:

Construction Monitoring Parameters

Gasoline Range Organics (GRO)

Diesel Range Organics (DRO)

DRO with silica-gel clean-up

Resource Conservation &

Recovery Act (RCRA) 8 metals

arsenic, barium, cadmium,

chromium, lead, mercury,

selenium, silver

Volatile Organic Compounds

standard method

(VOCs)

8260

Toxic Characteristic Leaching

Procedure (TCLP)

VOCs

RCRA Metals

SVOCs

Waste Samples

asbestos containing waste

materials (ACWM)

Total # of

Samples

Soil

Total # of

Samples

Groundwater

Dissolved 5

Total 5

5 each

4.2.7

4.2.8

Contractor will provide approximately 25% laboratory analytical results

within 10 business days of sample submittal (i.e., standard turnaround)

and 75% of results within five business day (rush) in coordination with

the State PMT.

Spatial Data Collection

4.2.8.1 Contractor will collect Global Positioning System (GPS)

locations for all analytical sample locations.

4.2.8.2 Contractor will collect GPS locations of regulated soil

reused on-site.

4.2.8.3 Contractor will collect GPS locations of soil

contamination left in place.

4.2.8.4 Contractor will collect GPS locations of debris left in

place or used as beneficial reuse material.

4.2.8.5 Contractor will use the coordinate system North

American Datum of 1983 (NAD83) Universal Transverse

Mercator Zone 15 North (UTM15N) (Meters).

4.2.8.6 Contractor will provide an electronic excel spreadsheet

of the GPS data.

This is the opportunity summary page. It provides an overview of this opportunity and a preview of the attached documentation.

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I494 Design Build Project 2 Contaminated and Regulated Materials Oversight

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