Attachment B Technical Specifications~2.pdf

BID DOCUMENT: NOT FOR CONSTRUCTION

Dalton, Olmsted & Fuglevand, Inc. i 10/17/2025

TECHNICAL SPECIFICATIONS

FORMER ST. HELENS FIBERBOARD FACILITY

LOWLAND/IN-WATER OPERABLE UNIT

INTERIM REMOVAL ACTION MEASURE

1645 RAILROAD AVE.

ST. HELENS, OREGON 97051

Prepared for Oregon Department of Environmental Quality

ECSI NO. 91

October 17, 2025

Prepared by Dalton, Olmsted & Fuglevand, Inc.

3121 S Moody Ave., Suite 180 Portland, OR 97239

Dalton, Olmsted & Fuglevand, Inc. ii 10/17/2025

SPECIFICATIONS FOR LOWLAND/IN-WATER OPERABLE UNIT

INTERIM REMOVAL ACTION MEASURE

FORMER ST. HELENS FIBERBOARD FACILITY

1645 RAILROAD AVE.

ST. HELENS, OREGON 97051

ECSI NO. 91

The material and data in this document were prepared under the supervision and direction of the undersigned.

Connor Lamb, PE Principal Engineer

Dalton, Olmsted & Fuglevand, Inc.

Expires: 12/31/2026

Dalton, Olmsted & Fuglevand, Inc. iii 10/17/2025

TABLE OF CONTENTS

FORMER ST. HELENS FIBERBOARD FACILITY

LOWLAND/IN-WATER OPERABLE UNIT

INTERIM REMOVAL ACTION MEASURE

DIVISION 01 GENERAL REQUIREMENTS

01 11 00 SUMMARY OF WORK

01 14 00 WORK RESTRICTIONS

01 29 00 MEASUREMENT AND PAYMENT

01 31 19 PROJECT MEETINGS

01 32 16 PROGRESS SCHEDULE

01 33 00 SUBMITTALS

01 35 29 HEALTH AND SAFETY

01 40 00 QUALITY CONTROL

01 50 00 TEMPORARY FACILITIES

01 57 19 ENVIRONMENTAL CONTROLS

DIVISION 02 EXISTING CONDITIONS

02 21 00 SURVEYING

02 61 00 REMOVAL MATERIAL HANDLING,

TRANSPORTATION, AND DISPOSAL

02 72 00 WATER MANAGEMENT

DIVISION 31 EARTHWORK

31 05 16 IMPORT MATERIALS

31 11 00 CLEARING AND GRUBBING

31 23 16 SEDIMENT, SOIL, AND WOOD WASTE REMOVAL

DIVISION 32 EXTERIOR IMPROVEMENTS

32 90 00 RESTORATION AND PLANTING

FORMER ST. HELENS FIBERBOARD FACILITY LOWLAND/IN-WATER OPERABLE UNIT

INTERIM REMOVAL ACTION MEASURE SECTION 01 11 00

OREGON DEPARTMENT OF ENVIRONMENTAL QUALITY SUMMARY OF WORK

Dalton, Olmsted & Fuglevand, Inc. 01 11 00 - 1 10/17/2025

SECTION 01 11 00

SUMMARY OF WORK

PART 1 - GENERAL

1.1 OBJECTIVE OF THE WORK

A. The objective of the Work for this Interim Removal Action Measure (IRAM) is to reduce chemical mass in contaminated soil, sediments, and wood wastes by removing impacted material and restoring the resulting disturbed areas within the Lowland/In-Water Operable Unit (OU2) at the former St. Helens Fiberboard facility in St. Helens, Oregon (Site), as required by the Oregon Department of Environmental Quality (DEQ) from the IRAM Area within OU2 in a safe, efficient, and environmentally conscientious manner to restore ecological function in accordance with the Contract Documents.

1.2 OWNER AND ITS AUTHORIZED REPRESENTATIVES

A. DEQ is the Owner for this Work.

B. Department of Administrative Services State Procurement Services (DAS SPS) is the Contracting Agency on behalf of DEQ.

C. Engineer - The primary point of contact for the Work regarding conformance with the Drawings, Specifications, and other Contract Documents, interpretations of the Specifications, and detailed inspections of any and all portions of the Work. DEQ’s Engineer is Dalton, Olmsted, & Fuglevand, Inc. The Engineer will be present at the Site.

D. Owner’s Authorized Representative - The Authorized Representative of DEQ who will be present at the Site as required to administer Contract issues on behalf of DEQ, and assist Engineer to manage submittals, evaluate requests for payment by Contractor, and perform sampling and data collection. DEQ’s Owner’s Authorized Representative is GSI Water Solutions, Inc.

1.3 DESCRIPTION OF THE WORK

A. This specification section provides the Project objectives and a summary of the Work to be performed. More detailed information on the Work can be found in the following subsections, the IRAM Final Design Report, and other specification sections listed in Part 1.4 of this section.

B. The term “Work” includes all Contractor activities required by the Contract Documents, based on actual field conditions at the time the Work is performed, and as directed by Engineer and Owner’s Authorized Representative.

C. The Work includes soil, sediment, and wood waste removal to be performed in the IRAM Area which is defined as the large, relatively flat portion of the OU2 lowlands with subareas along it slopes to the Upland (Operable Unit 1 [OU1]) as shown in the Contract Drawings. Removal material includes existing vegetation, debris, riprap, creosoted timber and other materials present within the IRAM Area as detailed in these Contract Documents.

OREGON DEPARTMENT OF ENVIRONMENTAL QUALITY SUMMARY OF WORK

BID DOCUMENT: NOT FOR CONSTRUCTION

Dalton, Olmsted & Fuglevand, Inc. 01 11 00 - 2 10/17/2025

D. The Work associated with supporting the removal action shall be completed during two consecutive Construction Seasons (CSs) (i.e., CS1 and CS2). Work below the Ordinary High Water (OHW) elevation 17.5 feet North American Vertical Datum of 1988 (NAVD88) shall only be performed during the In-Water Work Periods (IWWPs) of July 1 to October 31 of each CS. If DEQ chooses to award the Alternate Bid Item for Restoration Planting, final restoration plantings are expected to be completed in a third season (CS3).

E. The IRAM Area is located within an intertidal area requiring appropriate approach to the Work considerate of anticipated conditions at the time of the Work. Tides and high-water conditions have the potential to inundate the Site, and the Contractor shall plan the Work accordingly.

F. Construction of temporary haul roads within IRAM Subareas 1, 2, and 4.

G. The Upland is owned by others and the Work shall not impact ongoing Upland operations.

Upland operations may include demolition of existing upland facilities or construction of new facilities, which may create additional traffic and construction activities at the Site.

H. Construction of temporary upland facilities including roads, Sediment Processing Area (SPA), water treatment facility, import material stockpile area, and other facilities to support the IRAM are required. Such temporary facilities shall be removed at completion of the IRAM.

I. Removal and disposal of existing vegetation from within the IRAM Area (Subareas 1, 2, 3 and portions of Subarea 4) as shown on the Contract Drawings.

J. Removal of impacted soil, sediment, and wood waste; and a limited amount of non-impacted underlying sediment to the extent required to efficiently remove overlying impacted sediment and impacted wood waste and maintain drainage.

K. Removal of debris from Subareas 1, 2, 3, and 4 as identified on Contract Drawings or in these Specifications.

L. Management of water generated from sediment excavation Work, water resulting from sediment processing and management, and water captured from precipitation within the various work areas.

M. The Work described herein will be conducted on behalf of the DEQ.

1.4 RELATED WORK SPECIFIED ELSEWHERE

A. The provisions and intent of the Contract, including the General Conditions, Supplemental General Conditions, and Division 01 General Requirements, apply to this work as if specified in this section. Work related to this section is described in:

SECTION 01 14 00 – WORK RESTRICTIONS

SECTION 01 29 00 – MEASUREMENT AND PAYMENT

SECTION 01 31 19 – PROJECT MEETINGS

SECTION 01 32 16 – PROGRESS SCHEDULE

SECTION 01 33 00 – SUBMITTALS

SECTION 01 35 29 – HEALTH AND SAFETY

SECTION 01 40 00 – QUALITY CONTROL

SECTION 01 50 00 – TEMPORARY FACILITIES

SECTION 01 57 19 – ENVIRONMENTAL CONTROLS

OREGON DEPARTMENT OF ENVIRONMENTAL QUALITY SUMMARY OF WORK

BID DOCUMENT: NOT FOR CONSTRUCTION

Dalton, Olmsted & Fuglevand, Inc. 01 11 00 - 3 10/17/2025

SECTION 02 21 00 – SURVEYING

SECTION 02 61 00 – REMOVAL MATERIAL HANDLING, TRANSPORTATION, AND

DISPOSAL

SECTION 02 72 00 – WATER MANAGEMENT

SECTION 31 05 16 – IMPORT MATERIAL

SECTION 31 11 00 – CLEARING AND GRUBBING

SECTION 31 23 16 – SEDIMENT, SOIL, AND WOOD WASTE REMOVAL

SECTION 32 90 00 – RESTORATION AND PLANTING

1.5 REFERENCE DOCUMENTS

A. The IRAM Final Design Report will be issued with the bid documents as Attachment E-1. The following site-specific documents are listed herein for reference and are available online at https://ordeq.org/ECSI0091ITB.

1. Data Gaps Investigation (DGI) Report

2. IRAM Investigation Report

3. IRAM Pre-Design Investigation (PDI) Report

4. Supplemental PDI (SPDI) Report

5. IRAM Final Design Report

6. IRAM Basis of Design Report

7. Restoration Recommendations Memorandum

8. Geotechnical Evaluation – Sediment Removal Haul Roads

1.6 JOB CONDITIONS

A. The property, including OU2, is currently owned by Upland Data Center, LLC (UDC). Oregon Department of State Lands has jurisdiction over all in-water areas below OHW elevation

17.5 feet NAVD88.

1. Owners of property adjacent to OU2 are shown in the Contract Drawings.

2. OU2 is defined as a wetland to the extents shown in the Contract Drawings.

3. While no known active utilities are present in OU2, unknown onsite and adjacent utilities may be encountered and impact the Work. Contractor shall perform utility locates to confirm there are no active utilities within areas where the Work will be performed.

B. Construction below OHW elevation of 17.5 feet NAVD88 is considered in-water work and is not allowed during fish-critical activity periods, defined as November 1 through June 30 each year. The IWWP is from July 1 through October 31.

C. The Contractor shall furnish all labor, material, and equipment necessary to safely and efficiently perform the Work under these Contract Documents.

D. The security of the Site shall be maintained at all times. If the Contractor creates temporary openings in fences or requires an open gate to allow for access of truck traffic, security

OREGON DEPARTMENT OF ENVIRONMENTAL QUALITY SUMMARY OF WORK

BID DOCUMENT: NOT FOR CONSTRUCTION

Dalton, Olmsted & Fuglevand, Inc. 01 11 00 - 4 10/17/2025 personnel to control unauthorized access are required. Further, temporary closure of the openings is required during times when active construction is not underway.

E. Structures within the Project Area that may impact access and maneuverability include, but are not limited to, a historic railway tram system and docking structure adjacent to Subareas 1 and 3 previously used for loading and unloading ships. These structures are to remain in place.

F. Much of OU1 is located over an environmental cap which restricts ground disturbance in the areas shown in the Contract Drawings.

G. Existing wells within the OU1 use areas will be abandoned by others prior to IRAM construction. Any remaining wells susceptible to damage during the IRAM be clearly marked and protected by the Contractor during the Work.

H. Soft ground with low bearing capacity and high-water content is anticipated to be encountered in the IRAM Area. Geotechnical conditions require that all sediment and wood waste removal be performed from temporary haul roads using low ground bearing pressure equipment and long-reach excavators to the extent practicable. See Contract Drawings for work corridors/haul roads.

1.7 DESCRIPTION OF WORK CATEGORIES

A. Work categories include the following, which are discussed generally in the following subsections and in detail in related specification sections.

1. Pre-Mobilization Submittals.

2. Mobilization.

3. Construction of temporary infrastructure (i.e., haul roads, import material stockpile area, etc.) as shown on the Contract Drawings.

4. SPA development and setup.

5. Water treatment facility mobilization and setup.

6. Water management (including water processing facility operation, increment-dams construction, seepage and stormwater control).

7. Soil, sediment, and wood waste removal (including excavation, gravel buttress installation, removal and loading into trucks for transport to SPA).

8. Soil, sediment, and wood waste handling (including transport to SPA, dewatering at the SPA, and loading into trucks for transport to recycling facility).

9. Transport to landfill and landfill disposal of dewatered and stabilized sediment and other material.

10. Backfill, grading, and restoration of wetland habitat.

11. Site securement between construction seasons.

12. Demobilization

B. Mobilization activities include:

1. All supervision and safety.

2. Bringing all necessary equipment to the Site to perform the Work.

3. Providing all labor, material, and equipment to complete mobilization activities.

OREGON DEPARTMENT OF ENVIRONMENTAL QUALITY SUMMARY OF WORK

BID DOCUMENT: NOT FOR CONSTRUCTION

Dalton, Olmsted & Fuglevand, Inc. 01 11 00 - 5 10/17/2025

4. Installing required temporary environmental protection as required by Contract Documents and Contractor’s operations.

C. Site Work activities include:

1. Installing fences in the Project Area, as well as installing required signs and temporary utilities.

2. Locating utilities prior to construction activities and protecting utilities from damage.

3. Installing and maintaining stormwater and erosion controls.

4. Constructing a SPA, water treatment facility, import material stockpile and Contractor lay down areas; office trailers, parking, and any other support activities that the Contractor requires to complete the Work within the designated areas on the Contract Drawings.

5. Constructing or upgrading upland haul roads as shown on the Contract Drawings.

6. Constructing haul roads within the IRAM Area and between the IRAM Area and the SPA.

7. All Site Work shall be complete before excavation for Sediment, Soil, and Wood Waste Removal (Section 31 23 16) is initiated and requires approval by the Engineer.

D. Water Management activities include:

1. Installing Construction Water (Section 02 72 00 Water Management) processing facilities to manage and process Construction Water generated during the Work to reduce turbidity and potential chemical concentrations prior to discharge.

2. Managing construction contact water expected to be generated during the Work.

Construction Water is subdivided into two types, each requiring management as described below.

a. Drawdown Water is water that has inundated the IRAM Area due to high water conditions, has not contacted exposed contaminated sediment, has turbidity that does not exceed background levels, is sheen free, and otherwise does not appear to be impacting downstream conditions.

i. Drawdown Water in CS1 that must be pumped out of the excavation area will be discharged through a diffuser to a splash pad in the CS2 area as shown in the Drawings.

ii. Drawdown Water in CS2 will be discharged in the same manner until not practicable, and then directly into Scappoose Bay without processing.

b. Construction Contact Water includes any water that may have come into contact with impacted sediment or soil during the Work, such as ponded and seeped water from the bottom of the excavation, runoff water from stockpiled materials, water from dewatered sediment, and truck decontamination water.

i. Construction Contact Water requires processing to eliminate entrained contaminants and reduce turbidity.

ii. Construction Contact Water that is removed from open excavations and excavation areas will be conveyed upland and treated in Water Treatment.

OREGON DEPARTMENT OF ENVIRONMENTAL QUALITY SUMMARY OF WORK

BID DOCUMENT: NOT FOR CONSTRUCTION

Dalton, Olmsted & Fuglevand, Inc. 01 11 00 - 6 10/17/2025

3. Installing and operating a Construction Contact Water collection system at excavation areas and in the SPA to remove ponded water, seepage water, and stormwater from the bottom of the drained excavation and SPA and conveying the water to the Water Treatment area for processing.

4. Pumping and conveying processed Construction Water to discharge locations shown on the Contract Drawings.

E. Vegetation Removal

1. Existing vegetation within the IRAM Area shall be removed and managed as follows:

a. Subarea 1 – All existing vegetation shall be removed by clearing and grubbing and disposed of offsite. Large trees (>= 20-inches diameter breast height) that are free from impacted sediment may be retained for use as large woody material (LWM), snags, basking logs, or other restoration features at the direction of the Engineer.

b. Subarea 2 – All existing vegetation shall be removed by clearing and grubbing except for large trees (>= 20-inches diameter breast height) which will be preserved and will have their root zones protected.

c. Subarea 3 – All existing vegetation shall be removed by clearing only and disposed of offsite except for large trees (>= 20-inches diameter breast height) which will be preserved to the extent practicable.

d. Subarea 4 – All existing vegetation shall be preserved as practicable except for that which must be taken out to facilitate the IRAMs removal objectives. Removed vegetation shall be cleared and grubbed and disposed of offsite. Large trees (>= 20-inches diameter breast height) root zones shall be protected to the extent practicable to limit the potential for impacts during sediment removal.

F. Soil, Sediment, and Wood Waste Removal activities include:

1. Excavating impacted soil, sediment, abandoned utility poles, debris, wood waste, and a limited amount of non-impacted underlying material from the IRAM Area, as described in specification Section 31 23 16 – Sediment, Soil, and Wood Waste Removal and shown on the Contract Drawings.

2. Loading excavated materials into sealed trucks for transport to the SPA.

3. The estimated excavation volume is provided in the Contract Documents and may change based on actual field conditions. The Contractor shall provide sufficient resources to complete the Work within the Project schedule, regardless of changes in volume.

G. Material Handling, Transport, and Disposal activities include:

1. Transporting excavated materials from the IRAM Area to the SPA in sealed trucks.

2. Stockpiling the excavated material in the SPA until it will pass the paint filter test either by natural dewatering (gravity and evaporation) or enhanced dewatering (tilling/disking or addition of drying or stabilization agents to sediment).

3. Operating and maintaining the SPA.

4. Loading dewatered materials into trucks and transporting them to an approved Subtitle D landfill facility for disposal, as described in this specification Section 02 61 00 – Removal Material Handling, Transportation, and Disposal.

H. Site Securement activities include:

1. Securing the Site between construction seasons.

OREGON DEPARTMENT OF ENVIRONMENTAL QUALITY SUMMARY OF WORK

BID DOCUMENT: NOT FOR CONSTRUCTION

Dalton, Olmsted & Fuglevand, Inc. 01 11 00 - 7 10/17/2025

2. Interim mobilization and demobilization activities.

3. Cleaning hard surfaces (i.e., asphalt paving) in Contractor use areas to be free from loose or contaminated materials.

4. Maintaining stormwater management controls throughout.

5. Stabilizing flattened and disturbed slopes using erosion control Best Management Practices (BMPs, as described under subsection 3.2 of Part 3. of this Section).

I. Demobilization activities include:

1. Removing all equipment, supplies, and facilities from the Project Area.

2. Restoring all impacted areas outside the IRAM Area to pre-Work conditions to the satisfaction of the Engineer.

3. Removing haul roads in Subareas 1 and 2 as shown on the Contract Drawings.

4. Stabilizing and vegetating flattened and disturbed slopes.

5. Restoring intertidal areas with suitable materials and replanting with wetland vegetation.

Some restoration work may have to be delayed until the proper growing season and/or the IWWP allow.

6. Removing all water treatment conveyance pipelines and associated appurtenances.

1.8 CONSTRUCTION VERIFICATION

A. The Engineer will be on site full-time during excavation to verify that the impacted materials have been removed to the maximum extent required by the Contract Drawings, or as directed by Engineer during removal and to implement quality assurance (QA), as appropriate, to meet the objectives of the Construction Quality Assurance Plan (CQAP).

B. The Contractor shall divide the IRAM Area into individual Material Management Units (MMUs) for performance and acceptance of the work. These MMUs shall be developed respective of the Contractor’s work sequence, be included in the Contractor’s Removal Action Work Plan (RAWP), and divide the IRAM Area into individual acceptance areas.

C. Engineer will confirm the Contractor has completed all removal activities to the extent of excavation based on third-party surveys, as described in Specifications Section 02 21 00 – Surveying and Section 31 23 16 – Sediment, Soil, and Wood Waste Removal.

D. Once surveying results have indicated that the targeted material has been removed, samples for leave surface characterization chemical testing will be collected by the Owner’s Authorized Representative with Contractor assistance, in accordance with the CQAP. Excavation verification is not dependent on the results of the samples.

E. Once leave surface characterization sampling has been performed in a given MMU, the excavation increment must be protected from re-contamination through effective construction sequencing and construction water management.

1.9 MEETINGS

A. The Engineer will chair progress meetings with DEQ on a schedule to be established with DEQ. These meetings are anticipated to be held weekly at the Site with allowances for phone or virtual attendance. The Contractor and Owner’s Authorized Representative will attend, as required by the Engineer.

OREGON DEPARTMENT OF ENVIRONMENTAL QUALITY SUMMARY OF WORK

BID DOCUMENT: NOT FOR CONSTRUCTION

Dalton, Olmsted & Fuglevand, Inc. 01 11 00 - 8 10/17/2025

B. The Engineer will chair Project meetings with the Contractor, as described in specification Section 01 31 19 – Project Meetings.

C. The Engineer will prepare a meeting agenda prior to meeting and distribute meeting notes after the meeting to attendees.

1.10 SCHEDULE

A. The following schedule is anticipated for the Work. Contractor shall provide equipment, labor and other resources necessary for completing the Work within this schedule.

1. Contract award and issuance of the Notice to Proceed for initiating the Work by January 2026.

2. Contractor submittals due per Schedule in Section 01 33 00 – Submittals.

3. Approval for Contractor mobilization, ground disturbing Work above OHW, and cutting and clearing vegetation that is suitable for bird nesting by March 1, 2026.

4. Contractor shall complete cutting and clearing vegetation to be removed that is suitable for bird nesting in all Subareas prior to April 15, the start of the primary nesting season.

5. Approval for Contractor to proceed with removal and start of excavation before July 1, 2026.

6. Soil, sediment, and wood waste removal completed by November 2027.

7. Restoration planting installed by November 2028.

8. 2-year plant establishment period through 2030.

B. The Work is anticipated to be completed and plants established before November 2030

1.11 DEFINITIONS, ABBREVIATIONS AND ACRONYMS

The following definitions are provided for abbreviations, acronyms, and words with specialized meanings within these Contract Documents.

AC activated carbon

ACP Asphalt Concrete Pavement

AIA American Institute of Architects

ANSI American National Standards Institute

AQI Air Quality Index

BBS Behavior Based Safety

BMP Best Management Practice

CFR Code of Federal Regulations

CIH Certified Industrial Hygienist

COC Contaminant of Concern

Construction Contact Water Any water that may have been in contact with impacted sediment either in OU2 during excavation (groundwater or river water), or

OREGON DEPARTMENT OF ENVIRONMENTAL QUALITY SUMMARY OF WORK

BID DOCUMENT: NOT FOR CONSTRUCTION

Dalton, Olmsted & Fuglevand, Inc. 01 11 00 - 9 10/17/2025 stormwater in the SPA, truck wheel wash water, or water released from excavated sediment during dewatering.

Contract Documents Solicitation Document and addenda thereto, the State of Oregon Public Improvement Agreement Form, General Conditions, Supplemental General Conditions, if any, the accepted Offer, Plans, Specifications, and Change Orders.

Contractor Contractor retained by DEQ to perform the Work, same as “DEQ’s Contractor”.

CQA Construction Quality Assurance

CQAP Construction Quality Assurance Plan

CQC Contractor Quality Control

CS Construction Season

CSP Certified Safety Professional

DAS Oregon Department of Administrative Services

DEQ Oregon Department of Environmental Quality

DGI Data Gaps Investigation

DOT Department of Transportation

Drawdown Water Water that has inundated the site due to high water conditions, has not contacted contaminated sediment, turbidity at or below background levels and must be pumped out of the Project area.

Engineer Dalton, Olmsted, & Fuglevand, Inc., who will be the main point of contact for Contractor as an authorized representative of DEQ, DEQ’s designated construction oversight representative, and to provide field direction and CQA oversight to Contractor on day-to-day basis.

EPA U.S. Environmental Protection Agency gpm gallons per minute

GPS Global Positioning System

HASP Health and Safety Plan

HAZWOPER Hazardous Waste Operations and Emergency Response

HDPE High-Density Polyethylene

HSO Site Health and Safety Officer

IRAM Interim Removal Action Measure

IRAM Area The large, relatively flat portion of the OU2 lowlands where soil, sediment, and wood waste excavation will be performed, as shown in the Contract Drawings

OREGON DEPARTMENT OF ENVIRONMENTAL QUALITY SUMMARY OF WORK

BID DOCUMENT: NOT FOR CONSTRUCTION

Dalton, Olmsted & Fuglevand, Inc. 01 11 00 - 10 10/17/2025

IWWP In-Water Work Period

Laborer A person who does one of the construction trades, traditionally considered unskilled manual labor, may act as assistant to other trades, may operate hand tools or small heavy equipment.

LIDAR Light Detection and Ranging

LWM Large woody material mil A unit of length equal to one thousandth of an inch (0.0254 millimeter)

MMU Material Management Unit

NAD83 North American Datum of 1983

NAVD88 North American Vertical Datum of 1988

NFPA National Fire Protection Association

NOAA National Oceanic and Atmospheric Administration

NTP Notice to Proceed

NTU Nephelometric Turbidity Unit

OAR Oregon Administrative Rule

ODOT Oregon Department of Transportation

OHW Ordinary High Water; Elevation 17.5 feet NAVD88

OLW Ordinary Low Water; Elevation 6.0 feet NAVD88

Operator A person who performs tasks involving deployment and operation of construction equipment

OSHA Occupational Safety and Health Administration

OSS Oregon Standard Specification

OU1 Operable Unit 1 of the Armstrong World Industries cleanup site in St. Helens, Oregon

OU2 Operable Unit 2 of the Armstrong World Industries cleanup site in St. Helens, Oregon

Owner Oregon Department of Environmental Quality (DEQ)

Owner’s Authorized

Representative GSI Water Solutions, Inc., who will be present at the Site, as required, as authorized representative of DEQ.

PAH Polycyclic aromatic hydrocarbon

Paint Filter Test SW 846 USEPA Method 9095A, required by landfill for disposal of soil and sediment.

OREGON DEPARTMENT OF ENVIRONMENTAL QUALITY SUMMARY OF WORK

BID DOCUMENT: NOT FOR CONSTRUCTION

Dalton, Olmsted & Fuglevand, Inc. 01 11 00 - 11 10/17/2025

PDI Pre-Design Investigation

PPE Personal Protective Equipment

Project Former St. Helens Fiberboard Facility Lowland/In-Water Operable Unit Interim Removal Action Measure (IRAM)

Project Area Bounded area within which Work will be performed for the Project. See Project Vicinity Map, Drawings – Sheet G-1.

PVC polyvinyl chloride

QA quality assurance

QC quality control

RAWP Removal Action Work Plan

RFI Request for Information

RFP Request for Proposal

RML Residual Management Layer

RPB Remedy Protection Berm

RTK Real Time Kinematic

SDS Safety Data Sheet

Site Former St. Helens Fiberboard Facility in St. Helens, Oregon

SPA Sediment Processing Area

SPCC Spill Prevention, Control and Countermeasures

SPDI Supplemental Pre-Design Investigation

Supervisor A person whose primary function is to direct or oversee the work, irrespective of additional functions that they may temporarily fill, such as operating equipment while excavator operator is on break.

SWPP Storm Water Pollution Prevention

TCDD 2,3,7,8-tetrachlorodibenzo-p-dioxin

TEQ toxicity equivalents

TIN Triangulated Irregular Network

TPH Total petroleum hydrocarbons

UDC Upland Data Center, LLC. The current owner of the Site.

Upland Higher elevation portion of OU1 within the Project Area boundary above the top of slope of the IRAM Area.

Work All effort to complete the work described in the Contract Documents

OREGON DEPARTMENT OF ENVIRONMENTAL QUALITY SUMMARY OF WORK

BID DOCUMENT: NOT FOR CONSTRUCTION

Dalton, Olmsted & Fuglevand, Inc. 01 11 00 - 12 10/17/2025

PART 2 - PRODUCTS

Not used

PART 3 - EXECUTION

3.1 CONTRACTOR PERSONNEL REPLACEMENT

A. The Contractor is responsible for the actions of all its personnel, laborers, suppliers, and Subcontractors on the Project and shall enforce strict discipline and good order among Contractor's employee and other persons carrying out the Work.

B. The Contractor shall not permit employment of persons who are unfit or unskilled for the tasks assigned to them.

C. Engineer will neither have control over or charge of nor be responsible for the construction means, methods, techniques, sequences or procedures, or for the safety precautions and programs in connection with the Work.

D. Engineer may advise the Contractor to immediately replace personnel, including operators, superintendents, and management staff.

E. Engineer may advise Contractor’s workers to be replaced, if the Contractor’s workers:

1. Do not appear to understand Project objectives.

2. Do not appear to be interested or capable of obtaining Project objectives.

3. Work methods do not appear to be consistent with Project objectives.

4. Work practices appear unsafe or inconsistent with Health and Safety objectives.

F. The Contractor shall have the ability to promptly replace removed staff with appropriate qualified staff.

G. Any delays and costs incurred as a result of replacing staff shall be solely at the Contractor’s expense.

H. DEQ will not grant a schedule extension as a result of delays incurred by replacing staff.

3.2 BEST MANAGEMENT PRACTICES

A. At a minimum, the Contractor shall incorporate the following Best Management Practices (BMPs) into the Work (additional BMPs are included as appropriate in further Specification sections specific to the performance of that Work).

1. BMP-1. The Contractor shall use properly sized equipment for all operations.

2. BMP-2. During construction, the Contractor shall use all prudent and necessary steps to avoid any discharge of oil, fuel or chemicals into waters, or onto land with a potential for entry into water.

3. BMP-3. Fuel hoses, oil drums, oil or fuel transfer valves and fittings, etc. on construction equipment will be checked regularly for drips or leaks and will be maintained and stored properly to prevent spills into waters. Proper security will be maintained to prevent vandalism.

4. BMP-4. In the event of a discharge of oil, fuel or chemicals into waters, or onto land with a potential for entry into waters, containment and cleanup efforts will begin immediately

OREGON DEPARTMENT OF ENVIRONMENTAL QUALITY SUMMARY OF WORK

BID DOCUMENT: NOT FOR CONSTRUCTION

Dalton, Olmsted & Fuglevand, Inc. 01 11 00 - 13 10/17/2025 and be completed as soon as possible, taking precedence over normal work. Cleanup will include proper disposal of any spilled material and used cleanup materials.

END OF SECTION 01 11 00

INTERIM REMOVAL ACTION MEASURE SECTION 01 14 00

OREGON DEPARTMENT OF ENVIRONMENTAL QUALITY WORK RESTRICTIONS

Dalton, Olmsted & Fuglevand, Inc. 01 14 00-1 10/17/2025

SECTION 01 14 00

WORK RESTRICTIONS

1.1 DESCRIPTION OF THE WORK

This section includes a general description of work restrictions to be followed while conducting specified Work activities.

1.2 RELATED WORK SPECIFIED ELSEWHERE

The provisions and intent of the Contract, including the General Conditions, Supplemental General Conditions, and Division 01 General Requirements apply to this work as specified in this section. Work related to this section is described in:

A. SECTION 01 11 00 – SUMMARY OF WORK

B. SECTION 02 61 00 – REMOVAL MATERIAL HANDLING, TRANSPORT, AND

DISPOSAL

C. SECTION 02 72 00 – WATER MANAGEMENT

D. SECTION 31 05 16 – IMPORT MATERIAL

E. SECTION 31 23 16 – SEDIMENT, SOIL, AND WOOD WASTE REMOVAL

1.3 CONTRACTOR’S USE OF PREMISES

A. The Site is currently owned and operated by UDC. DEQ has acquired access to the IRAM Area and associated uplands as shown on the Contract Drawings for the Project. The Contractor shall confine all operations, including the storage of materials to designated areas as shown on the Contract Drawings or as directed by the Engineer. The Contractor shall be responsible for arranging and paying the costs of any necessary offsite storage or onsite storage, not approved by the Engineer.

B. The Contractor’s use of the premises shall be limited to the Work being performed under the Contract Documents.

C. Contractor shall clearly mark the extents of the Work, equipment entry, exit points, and other important features to be protected or identified using signage, fencing, and/or the required protection measures in the Drawings prior to beginning ground disturbance.

D. Contractor Upland Support Areas shall be designated per the Contract Documents and fueling or servicing heavy equipment shall be performed for each equipment type specific to the area of operation for which the equipment is designated with the following precautions:

1. Promptly correct or repair operational procedures, leaks, or equipment problems that may cause pollution in the Project Area. If soils or other media become contaminated as a result of operational procedures or equipment problems, remove and dispose of them according to applicable laws.

OREGON DEPARTMENT OF ENVIRONMENTAL QUALITY WORK RESTRICTIONS

BID DOCUMENT: NOT FOR CONSTRUCTION

Dalton, Olmsted & Fuglevand, Inc. 01 14 00-2 10/17/2025

2. Contractor shall locate areas for refueling and servicing construction equipment and vehicles at least 100 feet away from any waters of the State and U.S. or storm inlet where practicable. Where Site constraints do not allow for that distance, Contractor shall fuel equipment at the greatest distance from waters of the State and U.S. as practicable and implement Subpart 3 of this Section.

3. Where Site constraints are restrictive of the 100-foot offset in Subpart 2, Contractor shall prevent fuel and operating fluids from reaching any waters of the State and U.S. or storm inlet by, at a minimum, using spill containment systems designed to completely contain potential spills during all refueling and equipment repair operations.

E. The Contractor shall be responsible for the security and safety of the Contractor’s equipment, facilities, and work areas. DEQ assumes no responsibility for any materials, tools and equipment belonging to the Contractor left on the Site. DEQ will not be liable for any loss or damage of Contractor’s tools, vehicles, equipment, or materials, whatever the cause.

F. The Contractor shall be responsible for any damage to roadways, facilities, trees, or structures on the Site or adjoining public property caused by its employees or subcontractors, except as specified in the Contract Documents.

1.4 PARKING

A. The Contractor shall park construction vehicles and construction equipment only in areas specific to their use (i.e., SPA equipment in the SPA) as shown in the Contract Drawings, or as approved by the Engineer.

B. The Contractor’s employees shall park personal vehicles only in areas shown in the Contract Drawings, or as approved by the Engineer.

C. No vehicles shall be parked in any location where they impede traffic or access to areas where the Work is being conducted or restrict access in and out of the facility entrance or within the facility outside of the Contractor’s work area.

1.5 WORK HOURS

A. Normal workdays shall be one shift, Monday through Saturday, Sundays with prior approval, excluding holidays, or as otherwise approved in advance by the Engineer (3 business days minimum notice required), and not limited to time of day, subject to providing adequate lighting so that the Work can be conducted safely and the Engineer can effectively observe the Work. All personnel shall work no more than 60 hours per week without prior approval of the Engineer. Contractor’s proposal shall not include personnel exceeding these limits.

B. The Contractor may conduct regular equipment maintenance during hours outside of the normal work hours defined in this specification section if performed within the limits of approved staging areas, as approved by the Engineer. All onsite maintenance will be subject to Contractor’s Spill Prevention, Control, and Countermeasures (SPCC) Plan, as well as any other applicable standard operating procedures.

C. The Contractor shall not conduct Work without the presence of the Engineer or Engineer’s approved representative, excluding offsite maintenance or as approved by the Engineer.

1.6 MINIMUM REQUIRED PERSONNEL

A. As described in the Specifications, certain personnel are required for the Project as listed below. The Contractor is not limited to these personnel only and shall provide additional personnel as required for their operations.

OREGON DEPARTMENT OF ENVIRONMENTAL QUALITY WORK RESTRICTIONS

BID DOCUMENT: NOT FOR CONSTRUCTION

Dalton, Olmsted & Fuglevand, Inc. 01 14 00-3 10/17/2025

1. Supervision personnel to include:

a. Construction Water Management Foreman as described in Specifications Section 02 72 00 – Water Management, Part 1.4.C.

b. Excavation Foreman as described in Specifications Section 31 23 16 – Sediment, Soil, and Wood Waste Removal, Part 1.4.C.

c. Admin support to update Daily Reports and tracking tables, as described in Specifications Section 01 33 00 – Submittals, Part 3.3.

2. Water treatment operations personnel, as described in Specifications Section 02 72 00 – Water Management, Part 3.4.D and Section 01 29 00 – Measurement & Payment, Part 1.5.B.

3. Sediment handling personnel as described in Specifications Section 02 61 00 – Removal Material Handling, Transportation, and Disposal, Part 3.

4. Pollution prevention personnel as described in Specifications Section 01 57 19 – Environmental Controls, Part 3.

1.7 LOCATE AND PROTECT EXISTING UTILITIES

A. Known utilities and pipelines are shown in their approximate location on the Contract Drawings. However, there may be buried utilities or pipelines within the Project Area not shown on the Contract Drawings. Contractor shall perform independent locate and protect all utilities prior to performing any work onsite.

B. The Contractor shall be solely responsible for locating and protecting utilities or pipelines that may be buried below the Work. There may be utilities other than those shown on the Contract Drawings. Contractor shall be aware of all overhead utilities and mark in accordance with their RAWP and/or Health and Safety Plan (HASP).

C. If Contractor uncovers, disturbs, damages or otherwise contacts any utilities during performance of the Work, they shall promptly notify the Engineer. The Contractor shall include details of such events in the Contractor’s Daily Report.

D. The Contractor shall repair, at the Contractor’s expense, any damage to utilities, pipelines and the surrounding area caused by their operations to the pre-Project condition.

E. Utilities shown on the Contract Drawings that may impede access and/or require special precautions include, but are not limited to: overhead power lines, buried telephone lines, buried sanitary and storm sewer lines, buried water supply lines, fire suppression lines, and buried fiber-optic lines.

1.8 SITE ACCESS

A. The access route for personnel, equipment and materials to and from the Site is via Railroad Avenue, as shown on the Contract Drawings.

PART 2 - PRODUCTS

Not used.

OREGON DEPARTMENT OF ENVIRONMENTAL QUALITY WORK RESTRICTIONS

BID DOCUMENT: NOT FOR CONSTRUCTION

Dalton, Olmsted & Fuglevand, Inc. 01 14 00-4 10/17/2025

PART 3 - EXECUTION

Not used.

END OF SECTION 01 14 00

FORMER ST. HELENS FIBERBOARD FACILITY, LOWLAND/IN-WATER OPERABLE UNIT

INTERIM REMOVAL ACTION MEASURE SECTION 01 29 00

OREGON DEPARTMENT OF ENVIRONMENTAL QUALITY MEASUREMENT AND PAYMENT

Dalton, Olmsted & Fuglevand, Inc. 01 29 00 – 1 10/17/2025

SECTION 01 29 00

MEASUREMENT AND PAYMENT

1.1 DESCRIPTION

A. This section includes a description of the requirements and procedures for measurement of Work performed, the documentation required to verify that amount of Work, and procedures for obtaining payment for the Work performed as provided in the “State of Oregon General Conditions for Public Improvement Contracts” January 2012 edition as amended by Supplemental General Conditions.

B. The Work, as described in the Contract Documents, for which payment will be made, is to be completed on a unit price or lump sum basis.

C. The payment made for each lump sum or unit price item will constitute full compensation for furnishing all labor, materials, and equipment, and performing any associated Contractor quality control and all associated work performed by Contractor as required for that lump sum or unit price item.

D. Indirect costs, such as supervision, overhead, profit, and the General Conditions specified in the Contract, all shall be allocated to each item as applicable for Work defined in the item. No separate payment will be made to the Contractor for these items.

E. If no Item exists for a portion of the Work, include the costs in a related Item.

1.2 RELATED WORK SPECIFIED ELSEWHERE

The provisions and intent of the contract, including the State of Oregon General Condition for Public Improvement Contracts, Supplemental General Conditions, and General Requirements, apply to this work and are included herein this section by reference. Work related to this section is described in:

A. SECTION 01 11 00 – SUMMARY OF WORK

B. SECTION 01 14 00 – WORK RESTRICTIONS

C. SECTION 01 35 29 – HEALTH AND SAFETY

D. SECTION 01 31 19 – PROJECT MEETINGS

E. SECTION 01 33 00 – SUBMITTALS

F. SECTION 01 40 00 – QUALITY CONTROL

G. SECTION 01 50 00 – TEMPORARY FACILITIES

H. SECTION 01 57 19 – ENVIRONMENTAL CONTROLS

I. SECTION 02 61 00 – REMOVAL MATERIAL HANDLING, TRANSPORTATION, AND

DISPOSAL

J. SECTION 02 72 00 – WATER MANAGEMENT

OREGON DEPARTMENT OF ENVIRONMENTAL QUALITY MEASUREMENT AND PAYMENT

BID DOCUMENT: NOT FOR CONSTRUCTION

Dalton, Olmsted & Fuglevand, Inc. 01 29 00 – 2 10/17/2025

K. SECTION 31 05 16 – IMPORT MATERIALS

L. SECTION 31 23 16 – SEDIMENT, SOIL, AND WOOD WASTE REMOVAL

1.3 ESTIMATED QUANTITIES

A. Quantities shown on the bid form or listed in the Contract Documents are estimates, provided only as the basis for the comparison of bids, and DEQ does not warrant, expressly or by implication, that the actual amount of work will correspond therewith. The right to increase or decrease the amount of any amount of work, or to make changes in the work required, as may be deemed necessary, is reserved by DEQ. All quantities shall be evaluated by the Contractor prior to proposal and any discrepancies shall be brought to the attention of DEQ prior to proposal or noted in the proposal submitted by the Contractor. The basis of payment will be the actual unit Bid Items of work performed, including those performed under Change Orders, and measured in accordance with the Contract Document.

B. Alternate Bid Items are included in the Bid Form to establish a unit price should the use of those items become necessary during construction. Allowance will not be made for loss of anticipated profits or additional compensation should the use of these items be deemed unnecessary.

1.4 MEASUREMENT STANDARDS

A. Measurement and payment descriptions for each item listed on the bid form are as set forth throughout the applicable sections of the technical Specifications as noted herein.

1. All Bid Items of work acceptably completed under the Contract will be measured as described in these Specifications according to United States standard measure.

2. Measurements will be made hereinafter as provided.

3. The method of measurement and computations to be used in determination of quantities of material furnished or work performed under the contract will be those methods generally recognized as conforming to accepted engineering practice.

4. Items of work for which payment is made by lump sum will be measured as a complete unit. Partial payment, if considered, to be made under the Contract shall be based on the percent of Work complete as verified by the Engineer and approved by DEQ, according to the “State of Oregon General Conditions for Public Improvement Contracts” January 2012 edition.

5. Measurement of Quantities:

a. Unless otherwise specified, measurements will be made horizontally or vertically. In determining the area for items bid on the basis of a material quantity (e.g., by the linear foot, square foot, ton, or cubic yard basis), the measurements will be on the neat dimension indicated on the plans or as altered by the Engineer or DEQ.

b. All items that are measured by the linear foot will be measured parallel to the base or foundation upon which such structures are placed, unless otherwise noted on the Drawings or otherwise specified.

c. Trucks used to haul material being measured by weight will be weighed empty at least daily or such times as Engineer directs, and each truck will bear a plainly legible identification.

d. Weights will be measured using state certified scales.

OREGON DEPARTMENT OF ENVIRONMENTAL QUALITY MEASUREMENT AND PAYMENT

BID DOCUMENT: NOT FOR CONSTRUCTION

Dalton, Olmsted & Fuglevand, Inc. 01 29 00 – 3 10/17/2025

e. No payment will be made for work performed or materials placed outside of lines indicated on the Drawings or otherwise established by the Engineer; materials wasted, used, or disposed of in a manner not called for under the Contract; material rejected after it has been placed by reason of failure of the Contractor to conform to the provisions of the contract; hauling and disposing of rejected materials; materials remaining on hand after completion of the work; or other work or material payment that is contrary to the provisions of the contract.

6. Units of Measurement:

a. Lump Sum: Lump sum items will be measured as a job and do not indicate a quantity value unless otherwise agreed to by Engineer and DEQ.

b. Linear Feet: All items measured by the linear foot, such as fence, pipes, silt fence, etc., will be measured as noted above, unless specified otherwise on the plans or otherwise expressly set forth in these Specifications. Fittings, overlaps at connections, or joining materials will be considered incidental to the Work and are not included in the overall measurements.

c. Surface Area: Surface area, when used in these Specifications, will mean the actual area of the exposed surface taking into account lengths and widths measured as slope distances. Adjustments for waste, overruns, or overlap are not included.

d. Volumes: All items measured by the cubic yard, such as excavations or fill placements, will be measured by computing the volume between the surface shown by survey of pre work conditions and the surface shown or survey of post work conditions, after accounting for settlement.

e. Weight: The term “ton” means the short ton consisting of 2,000 pounds. Quantity shall be determined based on weighing trucks full and empty on a state certified scale.

1.5 FINAL EXAMINATION AND ACCEPTANCE

A. The Work will not be complete until all elements of the Work have been fully executed and completed by the Contractor; and examined and accepted by the Engineer. Full completion of any element of the Work is not necessary when the element has been completed to the satisfaction of DEQ.

PART 2 - BASIS OF PAYMENT

2.1 SUMMARY

A. DEQ does not expressly, or by implication, agree, warrant, or represent in any manner, that the actual amount of Work will correspond with amount shown or described in the Contract Documents and reserves right to increase or decrease amount of Work described in the Contract Documents or to add Work not originally included in Contract Documents, when in DEQ’s judgment such change is in the best interest of the State.

B. The quantity of work done will be paid at the unit price or lump sum price, for which price and payment will be full compensation for doing all the work herein described in a skilled manner.

C. The work is comprised of the individual Bid Items presented in the Bid Form.

D. Any item of work not specifically listed on the Bid Form shall be considered incidental to the total contract price.

OREGON DEPARTMENT OF ENVIRONMENTAL QUALITY MEASUREMENT AND PAYMENT

BID DOCUMENT: NOT FOR CONSTRUCTION

Dalton, Olmsted & Fuglevand, Inc. 01 29 00 – 4 10/17/2025

E. The total bid amount will be determined by combining the prices from all base Bid Items including bid alternates that are selected by DEQ for the final Contract execution.

F. No change in Work will be considered a waiver of any other condition of the Contract Documents. No claim shall be made for anticipated profit, for loss of profit, or for damages because of any differences between amounts of Work actually done and as set forth in the Contract Documents except as otherwise expressly provided for in the Contract Documents.

G. Payments to the Contractor will be made only for actual quantities of Bid Items performed in accordance with terms of the Contract Documents and for items of Work actually performed under fully executed Change Orders.

H. The Contractor shall submit at least ten (10) Calendar Days prior to submission of its first application for progress payment, a schedule of values (“Schedule of Values”) for the contracted Work as described in Section 01 33 00 Submittals. This schedule will provide a breakdown of values for the contracted Work and will be the basis for progress payments.

2.2 MOBILIZATION/DEMOBILIZATION

A. PRE-MOBILIZATION ACTIVITIES (BID ITEM 001)

1. Pre-mobilization Activities shall include work performed as necessary related to the activities included in this item and performed prior to Construction Season (CS) 1 only.

2. Payment will be made for Pre-Mobilization Activities for work associated with the preparation of pre-construction reports, plans, and schedules, for pre-construction meetings, for all activities necessary to meet pre-mobilization objectives, and all appropriate costs in connection therewith and incidental thereto…