STATE OF OREGON

INVITATION TO BID (ITB)

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

INTERIM REMOVAL ACTION MEASURE (IRAM)

BID# S-10700-00014831

ADDENDUM# 2

ITB# S-DASOBO-00014831 ADDENDUM #2

Former St. Helens Fiberboard Facility Lowland/In-Water Operable Unit Interim Removal Action Measure (IRAM) Page 1 of 14

This Solicitation Addendum modifies the above captioned ITB only to the extent indicated herein. All other areas not specifically changed or otherwise modified by this Solicitation Addendum shall remain in full force and effect.

This Solicitation Addendum# 2 modifies the ITB as follows:

I. Section A.3, Solicitation Schedule, is modified to extend the deadline for (1) solicitation protests, requests for change, requests for clarification, requests for approval of equivalents, and questions and

(2) Bid Submittal (“Closing”). New language is indicated by bold print and italics and deleted language is indicated by strikethrough.

A.3 SOLICITATION SCHEDULE

All dates listed are subject to change. All times listed in this ITB and OregonBuys are Pacific Standard Time

(“PST”).

ACTIVITY SCHEDULE/DEADLINE

Mandatory Pre-Bid Conference See ITB Section A.10.

Deadline for solicitation protests, requests for change, requests for clarification, requests for approval of equivalents, and questions

December 10 December 4, 2025 at 2:00 PM

Deadline for Bid Submittal (“Closing”) December 17 December 11, 2025 at 2:00 PM

Public Opening

Immediately after Bid Opening Date and time. (See

“Public Opening” below for details on attending Public

Opening)

Deadline for Award Protest 7 calendar days after issuance of the Notice of Intent to

Award. See ITB Section D.4

II. Replace Attachment A Form A-2 – Pricing Form with “Addendum 2 Attachment A Form A-2 – Pricing Form”, attached and incorporated herein, updating the quantity for Bid Item 039 and adding Bid Items 042 and 043.

III. Attachment B, Technical Specifications –Modify Attachment B as follows:

• Replace Sheet 01 29 00 – 13 with “Addendum 2 01 29 00 – 13”, attached and incorporated herein, excluding equipment from the original Water Processing item.

• Replace Sheet 01 29 00 – 14 with “Addendum 2 01 29 00 – 14”, attached and incorporated herein, adding two additional pay items and the payment terms.

• Replace Sheet 01 29 00 – 15 with “Addendum 2 01 29 00 – 15”, attached and incorporated herein, revising unit of payment to ton.

Former St. Helens Fiberboard Facility Lowland/In-Water Operable Unit Interim Removal Action Measure (IRAM) Page 2 of 14

IV. Attachment C Plan and Drawings – Replace Drawings C-32 and C-43 with Drawings “Addendum 2 C-

32” and “Addendum 2 C-43”, attached and incorporated herein, showing wastewater treatment discharge details.

V. Replace Attachment E-2 Additional Reference Documents with “Addendum 2 Attachment E-2 Additional Reference Documents”, attached and incorporated herein, updating the list of additional documents to include the 12/3/2025 Optional Site Access event.

All other areas not specifically changed or otherwise modified by this Solicitation Addendum shall remain in full force and effect.

Requests for clarification, requests for change, and protests of this Solicitation Addendum #2 must be received by DAS by 2:00 PM on Thursday, December 10, 2025 (Pacific time) or they will not be considered.

THIS SOLICITATION ADDENDUM MUST BE SIGNED AND RETURNED PRIOR TO THE BID CLOSING DATE AND TIME. THIS ADDENDUM RECEIPT MUST ALSO BE ACKNOWLEDGED BY COMPLETING “ACKNOWLEDGEMENT OF ADDENDA” SECTION OF THE ATTACHMENT A, FORM A-1 - BIDDER INFORMATION AND CERTIFICATIONS FORM. FAILURE TO DO

SO MAY RESULT IN REJECTION OF THE BID AS NON-RESPONSIVE.

Signature: ___________________________________________________ Date: ____________________

Bidder Name: __________________________________________________________________________ (Please Print)

ATTACHMENTS TO THIS ADDENDUM# 2:

Addendum 2 Attachment A Form A-2 – Pricing Form Addendum 2 Attachment B Technical Specifications

• Addendum 2 01 29 00 – 13

• Addendum 2 01 29 00 – 14

• Addendum 2 01 29 00 – 15

Addendum 2 Attachment C Plan and Drawings

• Addendum 2 C-32

• Addendum 2 C-43

Addendum 2 Attachment E-2 Additional Reference Documents

Former St. Helens Fiberboard Facility Lowland/In-Water Operable Unit Interim Removal Action Measure (IRAM) Page 3 of 14

ADDENDUM 2

ATTACHMENT A

FORM A-2 — PRICING FORM

S-10700-00014831

Former St. Helens Fiberboard Facility Lowland/In-Water Operable Unit

Interim Removal Action Measure (IRAM)

[added language is indicated by bold and italics and deleted language is indicated by strikethrough]

PRICING SUBMITTAL INSTRUCTIONS:

Bidder shall enter pricing and other required information for all Bid Items listed in this Pricing Form. If this Pricing Form is replaced by Addendum, Bidders shall use the Addendum form to provide pricing and other required information. If the Pricing Form is only modified by Addendum, Bidders shall follow the instructions in the Addendum for making modifications to the Pricing Form. Failure to supply the required information in the Pricing Form, as modified by subsequent Addenda, may result in Bid rejection as non-responsive.

BASE BID and ALTERNATES: To include all Work described in the ITB, Plans, Specifications and any issued Addenda.

Bid Item Number

Item Name Unit Type

Quantity Unit Cost

Total Cost

BASE BID

001 Pre-Mobilization Activities LS N/A $

002 Mobilization LS N/A $

003 Mobilization and Setup of Water Treatment Facilities

LS N/A $

004 Mobilization and Setup of Excavation Dewatering System

LS N/A $

005 Offseason Site Securement LS N/A $

006 Upland Final Site Restoration LS N/A $

007 Demobilization LS N/A $

008 Erosion Control LS N/A $

009 Water Quality Controls LS N/A $

010 Construct Upland Haul Roads LS N/A $

011 Subgrade Improvements LS N/A $

012 Pipe Extensions at Swale Crossings LS N/A $

013 Gravel Pad at Contractor Laydown Area LS N/A $

014 Aggregate Subbase Material at Truck Turning Pad, SPA, and Water Treatment

LS N/A $

015 Catch Basins at SPA and Water Treatment LS N/A $

016 Ecology Blocks at SPA and Water Treatment LF 2,076 $

017 Sand Buffer at SPA and Water Treatment LS N/A $

018 Liner and Geotextile at SPA and Water Treatment SY 9,600 $

019 Aggregate Base Material Truck Turning Pad, SPA, and Water Treatment

LS N/A $

020 Pave SPA and Water Treatment TON 1,040 $

Former St. Helens Fiberboard Facility Lowland/In-Water Operable Unit Interim Removal Action Measure (IRAM) Page 4 of 14

021 Abandon and Re-Establish Hydrants and Valves LS N/A $

022 Procure, Assemble, Install, and Maintain Splash Sheilds

LS N/A $

023 4" HDPE Conveyance Pipe LF 3,500 $

024 Construct Import Material Stockpile Area LS N/A $

025 Clear and Grub Vegetation Subarea 2 LS N/A $

026 Debris Removal Subareas 2 and 3 LS N/A $

027 Clear Vegetation Subarea 3 LS N/A $

028 IRAM Excavation, Loading, and Hauling to SPA CY 52,000 $

029 Construct IRAM Area Haul Roads and Blisters LF 3,650 $

030 Construct Remedy Protection Berm LF 900 $

031 Construct Intermediate RPB LF 260 $

032 Remove IRAM Area Haul Road Surface Material CY 6,400 $

033 Excavation Dewatering System LS N/A $

034 Place Import Materials Subarea 2 CY 5,800 $

035 Sediment Rehandling, Stabilization, Truck Lining, Traffic Control, and Loading

TON 140,000 $

036 Establish Habitat Features ACRE 8 $

037 Place Residual Management Layer, Planting Media, Topsoil, and Coir Mat

SY 41,000 $

038 Water Processing KGAL 28,000 $

039 Subtitle D: Transport and Dispose TON 129,000 140,000

040 Hydroseed ACRE 1 $

041 Live Stakes LS N/A $

042 Water Treatment System Fixed Costs LS N/A $

043 Clear Vegetation Subarea 1 LS N/A $

SUBTOTAL BASE BID LUMP SUM $

For Bid Item 039, Subtitle D: Transport and Dispose - Is the disposal site in Oregon?

Yes No. If "yes," on this line, enter the amount that the disposal facility charges per TON for hazardous waste management or solid waste fees paid to DEQ for the waste to be disposed at their facility. *The DEQ fees of the total cost of Bid Item 039 will be subtracted from evaluating the Total Base Bid Lump Sum per ORS 468.035(4).

TON 129,000 -$ -$

BASE BID LUMP SUM (excluding DEQ fees) $

ALTERNATES

A-01 Hazardous Material Abatement, Transport and Disposal

A-01a Hazardous Material Abatement Mobilization/Demobilization

EA 1 $ $

A-01b Hazardous Material Abatement EA 5 $ $

A-01c Transport, and Disposal TON 5 $ $

Subtotal A-01 $

A-02 Saw Cutting ACP

A-02a Saw Cutting ACP Mob/Demob EA 1 $ $

A-02b Saw Cutting ACP, Up to 3 Inch Deep LF 3,150 $ $

A-02c Saw Cutting, Per Inch Over 3 Inch Thickness LF 3,150 $ $

Former St. Helens Fiberboard Facility Lowland/In-Water Operable Unit Interim Removal Action Measure (IRAM) Page 5 of 14

Subtotal A-02:

A-03 Asphalt Maintenance and Repair (SPA, Water Treatment, Import Stockpile)

A-03a Mobilization/Demobilization EA 1 $ $

A-03b Base Aggregate TON 125 $ $

A-03c Remove ACP, Grade and Compact Base Aggregate

SY 250 $ $

A-03d Procure and Place ACP for Repairs TON 690 $ $

Subtotal A-03: $

A-04 Asphalt Road Repairs

A-04a Mobilization/Demobilization EA 1 $ $

A-04b Remove and Recycle ACP at Roads TON 500 $ $

A-04c Procure and Place ACP on Roads TON 520 $ $

Subtotal A-04: $

A-05 Additional Subgrade Improvements

A-05a Additional Excavation, Material Placement and Compaction

CY 167 $

A-05b Subgrade Improvement Aggregate TON 250 $

Subtotal A-05: $

A-06 Salvage Trees for Use in Habitat Restoration

A-06a Mobilization EA 2 $ $

A-06b Tree Salvage EA 11 $ $

A-06c Limb and Prep for Placement EA 11 $ $

Subtotal A-06: $

A-07 Contractor Assist During Sediment Sampling

A-07a Contractor Standby/Assist During Sediment Sampling

EA 13 $ $

Subtotal A-07: $

A-08 Off Season Dewatering

A-08a Off Season Dewatering EA 9 $ $

Subtotal A-08: $

A-09 IRAM Haul Road Repairs

A-09a Mobilization/Demobilization EA 8 $ $

A-00b Reshape, Grade, Compact CY 3,887 $ $

A-09c Provide Aggregate TON 5,831 $ $

Subtotal A-09: $

A-10 Planting

A-010a Mobilization/Demobilization LS N/A $ $

A-010b Planting LS N/A $ $

Subtotal A-10: $

A-11 Wapato Salvage A-011a Mobilization/Demobilization LS N/A $ $

A-011b Wapato Salvage EA 10 $ $

A-011c Store and Protect Wapato EA 700 $ $

Subtotal A-11: $

A-12 IRAM SW Quadrant Spur

A-12a Excavation, Loading, and Hauling to SPA CY 8,800 $ $

Former St. Helens Fiberboard Facility Lowland/In-Water Operable Unit Interim Removal Action Measure (IRAM) Page 6 of 14

A-12b Construct IRAM SW Quadrant Spur Haul Road and Blisters

LF 540 $ $

A-12c Remove IRAM SW Quadrant Spur Haul Road Surface Material

CY 5,100 $ $

A-12d Payment for Excavation Dewatering System LS N/A $ $

A-12e Sediment Rehandling, Stabilization, Truck Lining, Traffic Control, Loading, and SPA Maintenance

TON 18,600 $ $

A-12f Place RML, Amended Sand, and Planting Media SY 4,600 $ $

A-12g Water Processing KGAL 3,200 $ $

A-12h Subtitle D: Transport and Dispose TON 18,600 $ $

A-12i Planting LS 1 $ $

Subtotal A-12: $

ALTERNATES LUMP SUM (Total amount of Alternate Bid Items, A01-A-12) $

BASE BID: Total Base Bid: $ (Base Bid Lump Sum, excluding DEQ fees)

ADD ALTERNATES A-1 – A-12: ADD ALTERNATES LUMP SUM: $

(Base Bid Lump Sum, excluding DEQ fees + Alternates Lump Sum)

NOTE: Bid price is total contract price including contractor’s profit and overhead. Items not explicitly listed in the bid schedule above are considered incidental.

The DEQ fees are subtracted and excluded from the bid evaluation. DEQ fees will be included in the total contract price.

The undersigned understands that the State reserves the right to increase or decrease the above quantities at the same unit prices as shown or to remove items as necessary to meet budgetary constraints. The undersigned has carefully examined the Contract Documents and the site of the work, and agrees to furnish all necessary plant, labor, equipment, accessories, materials, permits, and perform all operations shown and specified in accordance with the Contract Documents for the price(s) set herein.

Bid submitted by:

(Legal Business Name)

(Authorized Representative Name) (Title)

(Authorized Representative Signature) (Date)

Former St. Helens Fiberboard Facility Lowland/In-Water Operable Unit Interim Removal Action Measure (IRAM) Page 7 of 14

ATTACHMENT B

TECHNICAL SPECIFICATIONS

Addendum 2 01 29 00 – 13

Addendum 2 01 29 00 – 14

Addendum 2 01 29 00 – 15

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

BID DOCUMENT: NOT FOR CONSTRUCTION

Dalton, Olmsted & Fuglevand, Inc. 01 29 00 – 13 10/17/2025

B. Procurement, assembly, maintenance, and seasonal mobilization/demobilization of scaffold or other means for Contractor personnel to safely line highway haul trucks and trailers is to be included in this item.

C. Payment for Sediment Rehandling, Stabilization, Truck Lining, Traffic Control, Loading, and SPA Maintenance shall be by the ton based on original truck weight (scale) tickets for tons received at approved disposal facility.

2.31 ESTABLISH HABITAT FEATURES (BID ITEM 036)

A. Payment for Establish Habitat Features shall include all labor, materials, and equipment costs associated with removing sections of haul roads, reshaping haul roads to create mounds, and installing habitat features such as basking logs, floodplain roughness logs, and snags. Work shall include excavating IRAM Area haul road material that is approved by Engineer for reuse, loading, and hauling to portions of the site for use in fill areas.

B. IRAM Area haul road material that is deemed suitable for reuse by the Engineer shall be stockpiled in the stockpile area unless immediately placed in the fill destination per the Drawings. Stockpiled lowland haul road materials shall be used to form mounds, buttress transition areas, as erosion protection for slopes prior to import material placement, or reused for IRAM Area haul roads during CS2.

C. Placement of RML, Growing Media, Topsoil and planting is not included in this item.

D. Payment for Establish Habitat Features shall be by acre of in-place Habitat Feature to the lines and grades shown in the Drawings.

2.32 PLACE RESIDUAL MANAGEMENT LAYER, PLANTING MEDIA, TOPSOIL, AND COIR

MAT (BID ITEM 037)

A. Payment for Place RML, Planting Media, Topsoil and Coir Mat shall include all labor, materials, and equipment costs associated with furnishing and placing sand RML, 60% sand 40% topsoil blend planting media, and topsoil import materials. Also included in this cost is the procurement and placement of jute mats over the placement area as shown in the Drawings.

Work shall include furnishing, amending or mixing, hauling, and placement of these import materials as shown in the Drawings.

B. Payment for Place RML, Amended Sand, Planting Media, Topsoil, and Coir Mat shall be by the square yard placed to the required thickness, per the Drawings. Thickness verification measurement methodology shall be approved by the Engineer.

2.33 WATER PROCESSING (BID ITEM 038)

A. Payment for Water Processing shall include all labor and materials costs associated with operating and maintaining the water processing facilities, replacement of expended water processing supplies, and all appropriate costs in connection therewith and incidental thereto shall be included in the unit price for this item.

B. Costs shall include dedicated personnel whose sole job function is the water process facility tasks; treating construction contact water; and discharge of treated water to the Scappoose Bay discharge point as shown on the Contract Drawings.

C. Payment for Water Processing shall be by the kgal (per thousand gallons). Contractor shall provide dewatering records to the Engineer with application for payment.

Addendum 2 01 29 00 - 13

OREGON DEPARTMENT OF ENVIRONMENTAL QUALITY MEASUREMENT AND PAYMENT

BID DOCUMENT: NOT FOR CONSTRUCTION

Dalton, Olmsted & Fuglevand, Inc. 01 29 00 – 14 10/17/2025

2.34 SUBTITLE D: TRANSPORT AND DISPOSE (BID ITEM 039)

A. Payment for Subtitle D: Transport and Dispose shall include all labor, materials, and equipment costs associated with the transportation of stabilized sediment, soil, and wood waste, debris, and materials containing impacted sediment or soil from the SPA to approved landfill, transport and recycling of demobilization material (SPA impacted material, rock, concrete rubble, haul road scraping, lowland haul road materials unsuitable for reuse, and increment-dam materials), tipping fees, local, state and federal taxes, and all appropriate costs in connection therewith and incidental thereto shall be included in the unit price for this item.

B. For purpose of bid evaluation only. ORS 468.035(4) requires the subtraction of Oregon DEQ hazardous waste management or solid waste fees that are required by law to be paid to DEQ for waste disposed of at a solid waste, hazardous waste or PCB disposal facility from the bid or proposal for purposes of bid evaluation and award only. The fees will still be required to be paid at the disposal facility.

C. Loading trucks, and truck wheel wash and cleaning are not included in this bid item.

D. Payment for Subtitle D: Transport and Dispose shall be by ton based on original truck weight (scale) tickets for tons received at approved disposal facility.

2.35 HYDROSEED (BID ITEM 040)

A. Payment for Hydroseed includes all materials, labor, and equipment for placement of hydroseed on soil prior to placement of Coir Mat cover.

B. Payment for Hydroseed shall be by the square foot placed, based on the planned slope area.

2.36 LIVE STAKES (BID ITEM 041)

A. Payment for Live Stakes includes all materials, labor, and equipment for obtaining and maintaining live stakes prior to planting, and installation of live stakes in Subarea 2.

B. Payment for Live Stakes shall be for each stake planted, based on count by the Engineer.

2.37 WATER TREATMENT SYSTEM FIXED COSTS (BID ITEM 042)

A. Payment for the Water Treatment System Fixed Costs shall include full compensation for all fixed costs necessary to maintain the water treatment system in an operational condition for the duration of the dewatering activities, including but not limited to.

1. Equipment Rental/Amortization: Total lease, rental, or amortization costs for tanks, pumps, filtration units, control panels, piping, and hoses installed onsite for the project duration.

B. Payment for Water Treatment System Fixed Costs shall be by Lump Sum and paid on monthly progress payments based on the percentage of the water treatment duration elapsed.

2.38 CLEAR VEGETATION SUBAREA 1 (BID ITEM 043)

A. Payment for Clear Vegetation Subarea 1 shall include all labor, materials, and equipment costs associated with vegetation clearing activities in the Subarea 1 boundary. Activities include but are not limited to removing all trees and vegetation, managing, and transporting material to the approved disposal facility.

B. Payment for Clear Vegetation Subarea 1 shall be by lump sum.

Addendum 2 01 29 00 - 14

OREGON DEPARTMENT OF ENVIRONMENTAL QUALITY MEASUREMENT AND PAYMENT

BID DOCUMENT: NOT FOR CONSTRUCTION

Dalton, Olmsted & Fuglevand, Inc. 01 29 00 – 15 10/17/2025

2.39 BASIS OF PAYMENT – ALTERNATE BID ITEMS

A. HAZARDOUS MATERIAL ABATEMENT, TRANSPORT AND DISPOSAL (A-01)

1. Hazardous Material Abatement shall include all labor, materials, and equipment costs associated with abating and making ready for transport all hazardous material as identified in the Hazardous Material Survey and reported in the Hazardous Material Survey Report and shown in the Drawings.

a. Payment for A-01a Hazardous Material Abatement Mob/Demob shall be by the lump sum.

b. Payment for A-01b Hazardous Material Abatement shall be paid by Each and measured per each full work shift of abatement crew.

c. Payment for A-01c Transport and Disposal shall be by the pound based on original weight (scale) tickets for pounds received at approved disposal facility.

B. SAW CUTTING ASPHALT CONCRETE PAVEMENT (A-02)

1. All costs associated with Saw Cutting Asphalt Concrete Pavement (ACP), for road, SPA, Water Treatment, or Import Material Stockpile Area repairs as directed by the Engineer and all appropriate costs in connection therewith and incidental thereto shall be included in this Bid Item.

a. Payment for A-02a Saw Cutting ACP Mob/Demob shall be by lump sum.

b. Payment for A-02b Saw Cutting ACP, Up to 3 Inch Deep shall be by the linear foot based on job ticket from saw cutter stating how many lineal feet were cut and compared to field measurements by the Engineer for concurrence.

c. A-02c Saw Cutting, Per Inch Over 3 Inch Thickness shall be by the linear foot based on job ticket from saw cutter stating how many linear feet of ACP greater than 3 inches deep were cut and compared to field measurements by the Engineer for concurrence.

C. ASPHALT MAINTENANCE AND REPAIR (SPA, WATER TREATMENT, IMPORT

STOCKPILE) (A-03)

1. Asphalt Maintenance and Repair shall include all costs associated with the procurement and placement, and compaction of hot mix asphalt, application of tack coat, and sealer for the purposes of repairing asphalt in the upland support areas at the direction of the Engineer and all appropriate costs in connection therewith and incidental thereto shall be included in these items.

2. No additional payment will be made for quality control, environmental protection measures, noise control, trucking, transportation, permits, fees, or other incidental activities associated with this Bid item.

a. Payment for A-03a Mob/Demob shall be by lump sum.

b. Payment for A-03b Aggregate Base Material shall be by ton, based upon original load (weight) tickets from the supplier .

c. Payment for A-03c Remove ACP, Grade and Compact Base Aggregate shall be by the completed square yard as verified by the Engineer.

d. Payment for A-03d Procure and Place ACP for Repairs shall be by the ton based upon original load (weight) tickets from the supplier of hot mix asphalt.

D. ASPHALT ROAD REPAIRS (A-04)

Addendum 2 01 29 00 - 15

Former St. Helens Fiberboard Facility Lowland/In-Water Operable Unit Interim Removal Action Measure (IRAM) Page 11 of 14

ATTACHMENT C

PLANS AND DRAWINGS

Addendum 2 C-32

Addendum 2 C-43

Top of apron

Top of apron

Top of apron Top of apron

Top of apronTop of apron

Top of apron

Top of apron Bollard

Bollard Bollard

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OF-4

OF-3 (closed in 2012)

FOF-3

SD

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Bollard

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Bollard

10 FT Pole

10 FT Pole

10 FT Pole

Guard

FOF-2

15 20

24 FT TRUCK LOADING LANE

10 FT CLEAN LANE

PROPOSED

CONTRACTOR

LAYDOWN AREA

(SEE SHEET C-33)

PROPOSED

TURNING PAD AND

RAMP AREA

(SEE SHEET C-33)

PROTECT IN PLACE

PER PLAN SHEET C-33

PROPOSED

UPLAND

HAUL ROAD

PROPOSED IRAM

HAUL ROAD

SEE SHEET C-43

FOR DISCHARGE

DETAILS

PROPOSED

WATER

TREATMENT

AREA

(SEE SHEET C-36)

PROTECT IN PLACE

PER PLAN SHEET C-36

PROPOSED SEDIMENT

PROCESSING AREA

(SEE SHEET C-34)

PROTECT IN PLACE

PER PLAN SHEET C-34

FIRE HYDRANT

FLANGE, SEE

SHEET C-40

+0

40+00

32+00

32+50

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+5

+5

+0

+5

+0

+5

38+00

38+50

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40+50

FIRE HYDRANT

FLANGE, SEE

SHEET C-40

NOTES

1. NOT ALL UTILITIES ARE SHOWN. CONTRACTOR TO

VERIFY UTILITIES.

2. ADDITIONAL SITE BUILDINGS MAY BE DEMOLISHED

BY OTHERS BEYOND THOSE INDICATED ON

DRAWINGS.

EXISTING

SUBAREA BOUNDARIES

PROJECT AREA BOUNDARY

ORDINARY HIGH WATER (EL 17.5 FT NAVD88)

TAX LOT LINE

ROAD EDGE

RAILROAD TRACKS

SANITARY SEWER LINE

SANITARY SEWER MANHOLE

STORMSEWER LINE

STORMSEWER CATCH BASIN

STORMSEWER ROOF DRAIN

WATER PIPE

FIREWATER LINE

FIRE HYDRANT

WATER VALVE/PIPE END

GAS LINE

OVERHEAD POWER LINE

POWER POLE

OUTFALL

FORMER OUTFALL

SS

SD

FW

RD

CB

MH

FOF-5

OF-1

G

OHP

FH

W

CLEAN SOIL (SEE PHASE 2 AS BUILT DRAWINGS)

CONTOUR MINOR (1 FT)

CONTOUR MAJOR (5 FT)20

TREE > 20 IN.

UPLAND HAUL ROAD AND DIRECTION OF TRAVEL

SECURITY FENCE BY OTHERS

LEGEND

UPLAND HAUL ROAD AND PROPOSED

UPLAND HAUL ROAD STATIONING

5+

ECOLOGY BLOCK

CONTRACTOR LAYDOWN AREA

TURNING PAD AND RAMP AREA

SEDIMENT PROCESSING AREA

WATER TREATMENT AREA

ASPHALT (SEE NOTE 5, SHEET G-3)

CONCRETE (SEE NOTE 5, SHEET G-3.)

VEGETATED BUFFER (SEE NOTE 5, SHEET G-3)

WATER PIPEW

APRON

DEMOLITION BY OTHERS PRIOR TO IRAM CONSTRUCTION

STACKED ECOLOGY BLOCKS, TWO BLOCKS HIGH

CALL BEFORE YOU DIG: 811

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DESCRIPTION

VERSION

DALTON

OLMSTED

FUGLEVAND

2601 CHERRY AVE #300, BREMERTON, WA 98310

(360) 394-7917

FORMER ST. HELENS FIBERBOARD FACILITY

LOWLAND / IN-WATER OPERABLE UNIT INTERIM REMOVAL ACTION MEASURE

ST. HELENS, OREGON

11/14/2025

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M AY. 2 3, 201 3CONNOR D. LAMB

OREGON

84013PE

EXPIRES: DEC. 31, 2026

10/17/2025 CDL0 PLAN SET FOR BID PURPOSES

11/14/2025 CDL DISCHARGE POINT FOR WATER TREATMENT C-32,C-431

3030 0

Scale in Feet

C-32UPLAND SUPPORT AREAS OVERVIEW

Addendum 2

Top of apron

Top of apron

Top of apron

Top of apron Top of apron

Top of apron

Top of apron

SCAPPOOSE BAY

M GM

Bollard

Bollard

Bollard

FW

FW

FW

FW

FW

FW

FW

FW

FW

FW

OF-4

OF-3 (closed in 2012)

FO

F-1 FOF-3

Swale 4 Outlet (008)

SD

SS

SS

SS

SS

SS

SS

SS

SS

SD

SDSD

SD

SD

SD

RD

RD

CB

CB

M H

FH

W

W

W

W W

W

W W

U N

K U

N K

FH

O F-5

O F-2

Bollard

Bollard

Bollard

Bollard

10 FT Pole

10 FT Pole

10 FT Pole Guard

FOF-2

+0

35+00

-10

-5

-5

-10

-10

-10

DOCK

+0

35+00

+5

+0

0 26 +5

32+50

33+00

33+50

+0

34+50

35+50

36+00

36+50

37+00

37+50

NOTES

1. NOT ALL UTILITIES ARE SHOWN. CONTRACTOR TO

VERIFY UTILITIES.

2. ADDITIONAL SITE BUILDINGS MAY BE DEMOLISHED

BY OTHERS BEYOND THOSE INDICATED ON

DRAWINGS.

IMPORT MATERIAL STOCKPILE AREA

SECURITY FENCE BY OTHERS

LEGEND

UPLAND HAUL ROAD AND PROPOSED

UPLAND HAUL ROAD STATIONING

5+

ECOLOGY BLOCK

TOE OF SLOPE

EXISTING

SUBAREA BOUNDARIES

PROJECT AREA BOUNDARY

ORDINARY HIGH WATER (EL 17.5 FT NAVD88)

TAX LOT LINE

ROAD EDGE

RAILROAD TRACKS

SANITARY SEWER LINE

SANITARY SEWER MANHOLE

STORMSEWER LINE

STORMSEWER CATCH BASIN

STORMSEWER ROOF DRAIN

WATER PIPE

FIREWATER LINE

FIRE HYDRANT

WATER VALVE/PIPE END

GAS LINE

OVERHEAD POWER LINE

POWER POLE

OUTFALL

FORMER OUTFALL

SS

SD

FW

RD

CB

MH

FOF-5

OF-1

G

OHP

FH

W

CONTOUR MINOR (1 FT)

CONTOUR MAJOR (5 FT)20

TREE > 20 IN.

UNKNOWN PIPEUNK

FLOATING DEBRIS AND OIL BOOM

SURVEY MONUMENT OR HUBM

DEMOLITION BY OTHERS PRIOR TO IRAM CONSTRUCTION

TRAFFIC BARRIER

APRON

ASPHALT (SEE NOTE 5, SHEET G-3)

GRAVEL (SEE NOTE 5, SHEET G-3)

CONCRETE (SEE NOTE 5, SHEET G-3)

VEGETATED BUFFER (SEE NOTE 5, SHEET G-3)

CLEAN SOIL (SEE PHASE 2 AS BUILT

DRAWINGS. SEE NOTE 5, SHEET G-3)

-10

Top of apron

Top of apron

Top of apron

Top of apron

Top of apron

Top of apron Top of apron

Top of apron

Top of apron

Sign

Sign

FLAG POLE

SCAPPOOSE BAY

M GM

Bollard

Bollard

Bollard

Bollard

Bollard

Bollard Bollard

BollardBollard

Bollard

Bollard

Bollard Bollard

Bollard

BollardBollard

Bollard

Bollard

Bollard

Bollard

FW

FW

FW

OF-4

OF-3 (closed in 2012)

FO

F-1 FOF-3

FOF-4

FO

F-

OF-2

O F-7

Swale 4 Outlet (008)

O F-

SS

SS

RD RD

RD

RD

RD

RD

RD

RD

RD

RD

RD

RD

RD

RD

RD

RD

RD

RDRD

RDRD

RD

RDRD

RD

RDRD

RD

RD

RDRD

RD

RD

RD

RD

RD

RD

RD

RD

RD

CB

CB

CB

CB

CB

CB

CB

CB

CB

CB

CB

CB

CB

CB

CB

CB

CBCBCB

CB

CB

M H

M

H-26 IN. DIA

M H

FH

FH

FH

SS

OHPOHP

G

M H

FH

O F-5

O F-2

FH

FH

FH

FH

FH

FH

FH

FH

Bollard

Bollard

Bollard

Bollard

10 FT Pole

10 FT Pole

10 FT Pole Guard

FOF-2

0+ 005+

0010+00

15+00

20+00

+0

+0

35+00

40+00

+0

0 49+00

100'

BUFFER

-10

-5

-5

-10

-10

-5

-10

DOCK

BACKFILL

STOCKPILE

0+ 005+

0010+00

15+00

20+00

+0

+0

35+00

40+00

+0

0 49+00

CHAIN

M

IN

. 1

IN

PVC OR FABRIC CURTAIN

MINIMUM 1 CONTINUOUS

OIL SORBENT BOOMS

WITHIN WORK AREA

WORK

AREA

CHAIN

CABLE

FLOATING DEBRIS BOOM

M

IN

. 3 F

T

DEBRIS

(TYP.)

NOTE: FLOATING DEBRIS BOOM TO BE

ANCHORED IN PLACE AS APPROPRIATE

TO MAINTAIN POSITION.

ANCHOR LINE

FLOATING DEBRIS BOOM

4 IN.-2 IN.

ROCKUNDERLAIN WITH

MIRAFI 140N FABRIC

PLAN

SECTION

END OF TEE

8 FT

6 FT

MIRAFI 140N FABRIC FLOATING DEBRIS AND OIL BOOM WITH CURTAIN

AND SORBENT BOOMS ALONG PROPOSED

REMEDY PROTECTION BERM AND PROPOSED

HAUL ROAD (SEE DETAIL A, THIS SHEET)

CALL BEFORE YOU DIG: 811

DATE INIT.REV

PL

O

T

TI

M E:

1/

/2

7:

O D

T

IM

E:

1/

/2

7:

U

SE

R : M ic ha el W oo ds

D

W G

: p :\G

SI

\d eq a rm st ro ng

\C ad

\F ig ur es

\1 p la n se t\S he et s\ C

W or k Ar ea Is ol at io n

Pl an

.d w g

Designer

Drafter

Manager

Project No.

Date

N O

TE

: T

H

IS

P

LA

N S

ET

IS

F O

R M

AT

TE

D T

O B

E

PR

IN

TE

D A

T

FU

LL

S

C

AL

E (2

2" x3

4"

DESCRIPTION

VERSION

DALTON

OLMSTED

FUGLEVAND

2601 CHERRY AVE #300, BREMERTON, WA 98310

(360) 394-7917

FORMER ST. HELENS FIBERBOARD FACILITY

LOWLAND / IN-WATER OPERABLE UNIT INTERIM REMOVAL ACTION MEASURE

ST. HELENS, OREGON

11/14/2025

RW

MRW

CDL

D R

AF

T

R

EV

IE

W

S

ET

E N G I N E E R

RE

GIS

TERED PROFESSIONAL

M AY. 2 3, 201 3CONNOR D. LAMB

OREGON

84013PE

EXPIRES: DEC. 31, 2026

10/17/2025 CDL0 PLAN SET FOR BID PURPOSES

11/14/2025 CDL DISCHARGE POINT FOR WATER TREATMENT C-32,C-431

FLOATING DEBRIS AND OIL BOOM

WITH CURTAIN AND SORBENT BOOMS

FROM SUBAREA 4 PENINSULA TO

DOCK ACCESS PENINSULA

(SEE DETAIL A, THIS SHEET)

BIO-FILTER BAG CHECK

DAM ACROSS SWALE

SEDIMENT PROCESSING

AREA AND WATER

TREATMENT AREA

LINED WITH HDPE OR

SIMILAR AND DRAPED

OVER JERSEY BARRIER

OR ECOLOGY BLOCK

PERIMETER.

PROPOSED

INTERMEDIATE

REMEDY PROTECTION

BERM, TOP EL. +13 FT

NAVD88

C-43WORK AREA ISOLATION PLAN

PROPOSED REMEDY

PROTECTION BERM,

TOP EL. +13 FT NAVD88

6060 0

Scale in Feet

N

1 IN. = 800 FT

Key Map

CURRENT SHEET

PROPOSED HAUL ROAD

PR

O

PO

SED

H

AU

L R O

AD

PR

O

PO

SED

IN

TER

M

ED

IATE R

EM

ED

Y

PR

O

PO

SED

H

AU

L R O

AD

PR

O

PO

SED

H

AU

L R O

AD

PR

O

PO

SED

H

AU

L R O

AD

PROPOSED HAUL ROAD

PR

O

PO

SED

H

AU

L R O

AD

PR

O

TEC

TIO

N

BER

M

PROPOSED REMEDY PROTECTION BERM

PR

O

PO

SED

H

AU

L R O

AD

A

NOT TO SCALE

FLOATING DEBRIS AND

OIL BOOM DETAIL (TYP.)

PROPOSED HAUL ROAD

B C-43

PROPOSED SPLASH PAD

B

NOT TO SCALE

SPLASH PAD DETAIL

A C-43

A C-43

DISCHARGE POINT FOR

WATER TREATMENT

Addendum 2

Former St. Helens Fiberboard Facility Lowland/In-Water Operable Unit Interim Removal Action Measure (IRAM) Page 14 of 14

ATTACHMENT E-2

OTHER REFERENCE DOCUMENTS

[added language is indicated by bold and italics and deleted language is indicated by strikethrough]

The following site-specific documents are listed herein for reference and are available online at:

https://ordeq.org/ECSI0091ITB

1. IRAM Optional Bidder Site Access Sign-In (12/3/2025)

2. 1. Mandatory Pre-Bid Sign-In Sheet (11/14/25)

3. 2. Mandatory Pre-bid DEQ Presentation (11/14/25)

4. 3. Mandatory Pre-bid DAS Presentation (11/14/25)

5. 4. Bid CAD Sheets (11/13/25)

6. 5. Bid Set CAD (11/4/25)

7. 6. Data Gaps Investigation (DGI) Report

8. 7. IRAM Investigation Report

9. 8. IRAM Pre-Design Investigation (PDI) Report

10. 9. Supplemental PDI (SPDI) Report

11. 10. IRAM Basis of Design Report

12. 11. Restoration Recommendations Memorandum

13. 12. Geotechnical Evaluation – Sediment Removal Haul Roads

14. 13. Amended Consent Judgment

15. 14. Upland Data Center Prospective Purchaser Agreement

16. 15. Corps Nationwide Permit Verification Letter NWP-2021-190-2

17. 16. DEQ 401 Water Quality Certification

*******THE END OF ADDENDUM# 2********

https://ordeq.org/ECSI0091ITB