FOTH/ENVIROCON - REMEDIAL ACTION - QUALITY ASSURANCE ... · Remedial Action Quality Assurance...

Report

Remedial Action

Quality Assurance Project Plan -

Revision 1

Ashland/NSP Lakefront Site

Project I.D.: 15X001

NSPW

Eau Claire, Wisconsin

July 2015 (Addendum 1 for Ashland Breakwater)

A Joint Venture of Foth Infrastructure & Environment, LLC and Envirocon, Inc. X:\FOTH\IE\Xcel\15X001-00\10000 Reports\RA QAPP-Rev 1, Add 1\R- RA QAPP Rev 1 Add 1.docx

101 International Drive, P.O. Box 16655

Missoula, MT 59808

July 20, 2015

Mr. Jerry Winslow

Project Manager Xcel Energy, Inc., on behalf of NSPW

414 Nicollet Mall, MP 4D

Minneapolis MN 55401

Dear Mr. Winslow:

RE: Remedial Action Quality Assurance Project Plan – Revision 1,

Addendum 1 for Ashland Breakwater

Ashland/NSP Lakefront Site

On behalf of Foth Infrastructure & Environment/Envirocon Joint Venture (FE JV), the

Remedial Action Quality Assurance Project Plan – Revision 1, Addendum 1 for Ashland

Breakwater (RA QAPP Addendum 1) for the Ashland/NSP Lakefront Site is enclosed.

If you have any questions concerning this report, please contact either of the undersigned

at (920) 497-2500.

Sincerely,

Foth Infrastructure & Environment/Envirocon Joint Venture

Steve J. Laszewski, Ph.D. Denis M. Roznowski, P.E.

Management Committee Member Project Manager

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Remedial Action Quality Assurance Project Plan - Revision 1,


Distribution

No. of No. of

Copies Sent To Copies Sent To

1 Richard C. Karl

Director, Superfund Division

U.S. Environmental Protection Agency

77 W. Jackson Blvd. (SR-6J)

Chicago IL 60604-3590

1 Jerry Winslow

Project Manager

Xcel Energy, Inc., on behalf of NSPW

414 Nicollet Mall, MP 4D

Minneapolis MN 55401

1 Scott Hansen

Remedial Project Manager

U.S. Environmental Protection Agency

77 W. Jackson Blvd. (SR-6J)

Chicago IL 60604-3590

1 Jamie Dunn

Project Manager

Wisconsin Dept. of Natural Resources

810 W. Maple St.

Spooner WI 54801

1 Steve Laszewski

Management Committee Member

Foth Infrastructure & Environment/

Envirocon Joint Venture

2121 Innovation Ct., Suite 300

De Pere WI 54115

1 Denis Roznowski

Project Manager

Foth Infrastructure & Environment, LLC

2121 Innovation Ct., Suite 300

De Pere WI 54115

1 Alan Buell

Deputy Project Manager and

RA Construction Manager

Envirocon, Inc.

651 Corporate Circle, Suite 114

Golden CO 80401

1 Brian Symons

RD QA Manager

Foth Infrastructure & Environment, LLC

14 Corporate Woods, Suite 650

8717 W. 110th Street

Overland Park KS 66210

1 Master Project Files

Foth Infrastructure &

Environment/Envirocon Joint Venture

Remedial Action Quality Assurance Project Plan - Revision 1,


Project ID: 15X001

Prepared for

NSPW

Eau Claire, Wisconsin

Prepared by

Foth Infrastructure & Environment/

Envirocon Joint Venture

July 2015

Copyright©, Foth Infrastructure & Environment/

Envirocon Joint Venture 2015

101 International Drive, P.O. Box 16655 Missoula, MT 59808

REUSE OF DOCUMENTS

This document has been developed for a specific application and not for general use; therefore, it may not be used without

the written approval of Foth. Unapproved use is at the sole responsibility of the unauthorized user.

X:\FOTH\IE\Xcel\15X001-00\10000 Reports\RA QAPP-Rev 1, Add 1\R- RA QAPP Rev 1 Add 1.docx FE/Joint Venture ii

Table of Contents

Uniform Federal Policy-QAPP Worksheets

QAPP Worksheet #3 Distribution List – Breakwater Construction Project

QAPP Worksheet #4 Project Personnel Sign-Off Sheet

QAPP Worksheet #5 Project Organizational Chart

QAPP Worksheet #9 Project Scoping Session Participants Sheet

QAPP Worksheet #10 Problem Definition – Conceptual Site Model (includes

drawings)

QAPP Worksheet #11 Project Quality Objectives – Systematic Planning Process

Statements

QAPP Worksheets #14 and #16 Project Tasks and Schedule

QAPP Worksheet #20 Sampling Summary Table

QAPP Worksheet #21 Project Sampling SOP Reference Table – Breakwater

Construction

QAPP Worksheet #22 Field Equipment Calibration, Maintenance, Testing, and

Inspection Table

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List of Abbreviations, Acronyms, and Symbols

A/OT Agencies Oversight Team

AOC Administrative Order on Consent

ASTM American Society of Testing and Materials

BOD Biochemical Oxygen Demand

CCB Continuing Calibration Blank

CCV Continuing Calibration Verification

CFR Code of Federal Regulations

CLP Contract Laboratory Program

cm centimeter

cm2 square centimeter

COC Containment of Custody

COC form Chain-of-Custody form

COMMP Cap Operations, Maintenance and Monitoring Plan

CQAP Construction Quality Assurance Plan

CQA Certified Quality Auditor

CQC Construction Quality Control

CST Column Settling Test

DGPS Differential Global Positioning System

DQI Data Quality Indicator

DQO Data Quality Objective

DRET Dredging Elutriate Test

EDD Electronic Data Deliverable

FCR Field Change Request

FE JV Foth Infrastructure & Environment/Envirocon Joint Venture

GIS Geographic Information System

GPS Global Positioning System

ICAL Initial Calibration

ICV Initial Calibration Verification

IDW Investigation-Derived Waste

IPR Initial Precision and Recovery

LCS Laboratory Control Sample

LIMS Laboratory Information Management System

LTMP Long-Term Monitoring Plan

MDL Method Detection Limit

mg/kg milligrams per kilogram

mg/L milligrams per liter

MNR Monitored Natural Recovery

MPC Measurement Performance Criteria

MS Matrix Spike

MSD Matrix Spike Duplicate

msl mean sea level

NAD North American Datum

NAVD North American Vertical Datum

List of Abbreviations, Acronyms, and Symbols (continued)

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NTU Nephelometric Turbidity Units

OM&M Operations, Maintenance, and Monitoring

OPR Ongoing Precision and Recovery

PCLT Pancake Column Leach Test

PE Performance Evaluation

PID photoionization detector

ppb parts per billion

PPE personal protective equipment

ppm part per million

ppt parts per trillion

PQO Project Quality Objective

QA Quality Assurance

RA QAPP Remedial Action Quality Assurance Project Plan – Revision 1, Addendum 1 for

Addendum 1 Ashland Breakwater

QC Quality Control

QL Quantitation Limit

RA Remedial Action

RAL Remedial Action Level

RAO Remedial Action Objective

RA Remedial Design

RF Response Factor

ROD Record of Decision

RPD Relative Percent Difference

RSD Relative Standard Deviation

RT Retention Time

RTK Real Time Kinematic

SDG Sample Delivery Group

SOP Standard Operating Procedure

SOW Statement of Work

SQL Sample Quantitation Limit

TBD To Be Determined

TOC Total Organic Carbon

TSS Total Suspended Solids

UFP-QAPP Uniform Federal Policy for Quality Assurance Project Plans

µg micrograms

µg/L micrograms per liter

USEPA U.S. Environmental Protection Agency

USGS U. S. Geological Survey

VER Calibration Verification

WAC Wisconsin Administrative Code

WDNR Wisconsin Department of Natural Resources

WPDES Wisconsin Pollutant Discharge Elimination System

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References

Foth Infrastructure & Environment/Envirocon Joint Venture, 2013a. Phase 1 Pre-Design Study

Work Plan – Revision 1 – Ashland/NSP Lakefront Site, Appendix B: Field Sampling

Plan – Revision 1. September 2013.

Foth Infrastructure & Environment/Envirocon Joint Venture, 2013b. Demolition Plan –

Ashland/NSP Lakefront Site. January 2013.

Foth Infrastructure & Environment/Envirocon Joint Venture, 2014a. Remedial Action Site

Specific-Health and Safety Plan – Ashland/NSP Lakefront Site. April 2014.

Foth Infrastructure & Environment/Envirocon Joint Venture, 2014b. Construction Quality

Assurance Plan – Ashland/NSP Lakefront Site. April 2014.

Foth Infrastructure & Environment/Envirocon Joint Venture, 2014c. Air Management Plan –

Ashland/NSP Lakefront Site. August 2014.

Foth Infrastructure & Environment/Envirocon Joint Venture, 2014d. Noise Management Plan –

Ashland/NSP Lakefront Site. April 2014.

Foth Infrastructure & Environment/Envirocon Joint Venture, 2014e. Vibration Management

Plan – Ashland/NSP Lakefront Site. April 2014.

Foth Infrastructure & Environment/Envirocon Joint Venture, 2014f. Remedial Action Waste

Management Plan – Ashland/NSP Lakefront Site. April 2014.

Foth Infrastructure & Environment/Envirocon Joint Venture, 2014g. Erosion Control and Storm

Water Management Plan – Ashland/NSP Lakefront Site. April 2014.

Foth Infrastructure & Environment/Envirocon Joint Venture, 2014h. Performance Standard

Verification Plan – Ashland/NSP Lakefront Site. April 2014.

Foth Infrastructure & Environment/Envirocon Joint Venture, 2015a. Remedial Action Quality

Assurance Project Plan – Revision 1, Addendum 1 for Ashland Breakwater –

Ashland/NSP Lakefront Site. July 2015.

Foth Infrastructure & Environment/Envirocon Joint Venture, 2015b. Remedial Action Site

Specific-Health and Safety Plan for Ashland Breakwater – Ashland/NSP Lakefront Site.

July 2015.

IDQTF, 2005a. Uniform Federal Policy for Quality Assurance Project Plans, Evaluating,

Assessing, and Documenting Environmental Data Collection and Use Programs, Part 1:

UFP-QAPP Manual, Final, Version 1. Intergovernmental Data Quality Task Force.

EPA-505-B-04-900A / DTIC ADA 427785. March 2005.

References (continued)

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IDQTF, 2005b. Uniform Federal Policy for Quality Assurance Project Plans, Evaluating,

Assessing, and Documenting Environmental Data Collection and Use Programs, Part 2A:

UFP-QAPP Workbook, Final, Version 1. Intergovernmental Data Quality Task Force.

EPA-505-B-04-900C / DTIC ADA 427486. March 2005.

SW846, 2008. Final Update IV to the Third Edition, Test Methods for Evaluating Solid Waste,

Physical/Chemical Methods. January 3, 2008.

URS, 2007. Remedial Investigation Report - Ashland/ Northern States Power Lakefront

Superfund Site. August 2007.

URS, 2008. Feasibility Study - Ashland/Northern States Power Lakefront Superfund Site.

December 2008.

U.S. Environmental Protection Agency, 1992. Specification and Guidance for Obtaining

Contaminant-Free Sample Containers. EPA 540/R-93/051. OSWER Directive 9240.0-

05A. December 1992.

U.S. Environmental Protection Agency, 1996. Method 1669, Sampling Ambient Water for

Trace Metals at EPA Water Quality Criteria Levels. U.S. Environmental Protection

Agency, Office of Water, Engineering and Analysis Division. July 1996.

U.S. Environmental Protection Agency, 1998. EPA Quality Manual for Environmental

Programs. Order 5360. July 1998.

U.S. Environmental Protection Agency, 1999. USEPA Contract Laboratory Program National

Functional Guidelines for Organic Data Review. EPA-540/R-99-008 (PB99-963506).

October 1999.

U.S. Environmental Protection Agency, 2000a. Guidance for the Data Quality Objectives

Process for Hazardous Waste Sites. EPA QA/G-4HW. EPA 600/R-00/007. January

2000.

U.S. Environmental Protection Agency, 2000b. Instructions on the Preparation of a Superfund

Division Quality Assurance Project Plan, Revision 0. USEPA Region 5. June 2000.

U.S. Environmental Protection Agency, 2000c. Guidance for Data Quality Assessment-Practical

Methods for Data Analysis. EPA QA/G-9. July 2000.

U.S. Environmental Protection Agency, 2000d. Guidance for the Data Quality Objectives

Process. EPA QA/G-4. EPA 600/R-96/055. September 2000.

U.S. Environmental Protection Agency, 2001. EPA Requirements for Quality Assurance Project

Plans. EPA QA/R-5. March 2001.

References (continued)

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U.S. Environmental Protection Agency, 2004b. USEPA Contract Laboratory Program National

Functional Guidelines for Inorganic Review. OSWER 9240.1-45 / EPA 540-R-04-004.

October 2004.

U.S. Environmental Protection Agency, 2008. Requirements for the 60 Percent Design Report.

April 29, 2008.

Wisconsin Department of Natural Resources, 1997. Method and Manner of Sampling. NR 218.

August 1997.

Wisconsin Department of Natural Resources, 2005. Analytical Test Methods and Procedures.

NR 219. May 2005.

Wisconsin Department of Natural Resources, 2007. Personnel Qualifications for Conducting

Environmental Response Actions. NR 712. September 2007.

Wisconsin Department of Natural Resources, 2008. Laboratory Certification and Registration.

NR 149. April 2008.

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Worksheets

Title: RA Quality Assurance Project Plan

Revision No. Revision 1, Addendum 1

Revision Date July 2015

Section No. QAPP Worksheet #3

Page Nos. Page 1 of 1

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QAPP Worksheet #3

Distribution List - Breakwater Construction Project

QAPP Recipient Title Organization Telephone Number E-mail Address

Scott Hansen Remedial Project Manager USEPA 800-621-8431, x61999 [email protected]

Richard C. Karl Director, Superfund Division USEPA 312-353-2000 [email protected]

Jamie Dunn Project Manager WDNR 715-635-4049 [email protected]

Jerry Winslow Project Manager Xcel Energy, Inc.,

on behalf of NSPW

612-330-2928 [email protected]

Eric Ealy Environmental Compliance

Oversight

Xcel Energy, Inc. 715-682-6904

763-276-6476

[email protected]

Thomas Perry Construction Management

Oversight

Xcel Energy, Inc. 715-682-8948

906-204-6680

[email protected]

Steve Laszewski Management Committee

Member

Foth Infrastructure &

Environment/Envirocon

Joint Venture


Denis Roznowski Project Manager Foth Infrastructure &

Environment, LLC


Alan Buell Deputy Project Manager and

RA Construction Manager

Envirocon, Inc. 406-698-2012 [email protected]

Brian Symons RD QA Manager Foth Infrastructure &

Environment, LLC


Jim Hutchison Project Engineer Foth Infrastructure &

Environment, LLC


Matthew Clark Project Engineer Baird, Ltd. 608-273-0592 [email protected]






QAPP Worksheet #4

Project Personnel Sign-Off Sheet

Organization: Response Agencies

Project Personnel Title Telephone Number Signature Date RA QAPP Read

Scott Hansen Remedial Project Manager 800-621-8431, x61999

Jamie Dunn Project Manager 715-635-4049






Organization: Foth Infrastructure & Environment/Envirocon Joint Venture

Project Personnel Title Telephone Number Signature Date QAPP Read

Steve Laszewski FE JV Mgmt Committee Member,

Foth I&E

920-496-6823

920-562-0321 (cell)

Keith Summers FE JV Mgmt Committee Member,

Foth I&E

920-496-6805

920-562-0328

Pete Joy FE JV Mgmt Committee Member,

Envirocon

406-523-1157

406-544-5825 (cell)

Alan Buell Deputy Project Manager &

RA Construction Manager, Envirocon

303-215-0187

406-698-2012 (cell)

Phil Deakin Corporate Acct. Manager, Envirocon 402-451-7171

John D’Antuono FE JV Mgmt Committee Member,

Director of Contracts, Envirocon

406-523-1152

406-544-1161 (cell)

Brian Bell Dredging Expert, Envirocon 219-548-0042

630-240-9496 (cell)

Brad Hay Site Supervising Construction

Manager, Envirocon

678-822-3568 (cell)

Dan Allen Project Health & Safety Supervisor,

Envirocon

720-404-6325 (cell)

David Hardy Project Health & Safety Manager,

Envirocon

405-308-6115 (cell)

Ken Aukerman Construction Manager, Foth I&E 920-496-6780

920-917-3834 (cell)

Denis Roznowski Project Manager, Foth I&E 920-496-6756

920-819-3513 (cell)

Brian Symons RD QA Manager, Foth I&E 913-469-0686

913-940-0081 (cell)

Jim Hutchison Project Engineer, Foth I&E 920-496-6813

920-819-8015 (cell)







Matthew Clark Project Engineer, Baird 608-273-0592

608-628-6186 (cell)

Chris Seider Project Health & Safety Officer,

Foth I&E

920-496-6819

920-562-0056 (cell)

Ron French Technical Staff, Foth I&E 314-682-1962

314-799-0056 (cell)

Brian Hanks Staff Engineer, Foth I&E 913-469-0686 x3816

Brian Sperrazza Project Geologist, Foth I&E 651-288-8584

612-219-8506 (cell)

Felipe Ortega Field Technician, Foth I&E 651-288-8585

507-350-8389 (cell)

Steve Lehrke Data Manager, Foth I&E 920-496-6894

920-562-0329 (cell)

Nick Azzolina Project Hydrogeologist, Foth I&E 920-857-6032 (cell)

Curt Dungey Air Quality Technician, Foth I&E 920-496-6918

920-606-6093 (cell)

Dan Tilly GIS/CAD/SharePoint Specialist,

Foth I&E

920-496-6924

920-246-6883 (cell)

Beth Schuh Administrative Asst., Foth I&E 920-496-6730

920-858-9193 (cell)

Janet Forrest Admin. Asst. (backup), Foth I&E 920-496-6811

Lori Kurowski Work Plan Coordinator, Foth I&E 920-496-6858

Andrea Martin Technical Staff, Foth I&E 920-496-6854

920-676-9230 (cell)

Mitch Vanderydt Technical Staff, Foth I&E 920-496-6792

416-579-5859 (cell)

John Starke Geotechnical Engineer, Foth I&E 651-288-8510

920-427-2661 (cell)

John Whitstone GIS/CAD Specialist, Foth I&E 920-496-6845







Mike Nimmer Technical Staff, Foth I&E 920-496-6764

920-619-5905 (cell)

Mike Mason Technical Staff, Foth I&E 913-468-0686 x3814

Kris Gamble Construction QA Officer, Foth I&E 417-836-3630

417-861-6160 (cell)

Aaron Mika Environmental Engineer, Foth I&E 218-481-6012

715-817-5370 (cell)

Greg Parins Environmental Engineer, Foth I&E 920-496-6833

920-606-4651 (cell)

Scott Janssen Construction QA Officer, Foth I&E 920-496-6817

920-676-9780 (cell)

Marty Sturzl Technical Advisor, Foth I&E 920-496-6888

920-619-1978 (cell)






QAPP Worksheet #5

Breakwater Construction Project Organizational Chart






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QAPP Worksheet #9

Project Scoping Session Participants Sheet

Site Name/Project Name: Ashland/NSP Lakefront Site Breakwater

Site Location: Ashland, Wisconsin

Date of Session: Multiple

Scoping Session Purpose: Multiple

Name Title Affiliation Phone # E-mail Address Project Role

Multiple

Comments/Decisions: Preliminary Design, Pre-Final Design, Final Design, QAPP Revision 1-Addendum 1, Weekly

Agency Meetings, Chapter 30 Permit Application for Breakwater

Action Items: Multiple

Consensus Decisions: Multiple

NOTE: Multiple scoping/technical sessions have been, and continue to be held.

Key Decision Points Influencing Monitoring Plan for Ashland Breakwater:

1. Potential PAH-impacted sediments not present in majority of Project area. Mobile silt curtains prove effective on TSS control

on navigational dredging projects in Great Lakes and allow for adjustment to handle changing water depths.

2. Turbidity monitoring to be used as surrogate for TSS.

3. Alert and Action TSS levels for Project consistent with those proposed for Phase 1 Pilot Project.

4. Provisions in Monitoring Plan for Ashland Breakwater to address sheen monitoring and procedures to address sheen, if

encountered.






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5. Sediment removal reviewed under CERCLA permit equivalency.

6. Breakwater construction reviewed under Chapter 30.

7. Monitoring for water quality impacts requires changing background and area of influence monitoring points due to varying

water currents driven largely by wind direction and speed.

8. Potential for large waves requires the use of handheld turbidity meter due to potential for permanent raft mounted meter to be

damaged.

9. Sediment to be tested following stabilization to properly dispose of or beneficially use on the Phase 1 Site.

10. Following sediment removal, stone placement for breakwater will commence and is not expected to have significant

environmental monitoring concerns due to very low percent fines in stone gradations.







QAPP Worksheet #10

Problem Definition - Conceptual Site Model

Page

Introduction ............................................................................................................................. 3 1.

Site Preparation ....................................................................................................................... 4 2.

Site Security .................................................................................................................... 4 2.1

Pre-Construction Erosion Control Measures .................................................................. 4 2.2

Utility Abandonments and Protection ............................................................................. 4 2.3

Temporary Utilities ......................................................................................................... 4 2.4

Temporary Facilities ....................................................................................................... 5 2.5

Pre- and Post-Construction Inspections .......................................................................... 5 2.6

Erosion Control ............................................................................................................... 5 2.7

Sediment Removal .................................................................................................................. 6 3.

Mobilization and Site Set-Up ......................................................................................... 6 3.1

3.1.1 Wooden Dock Demolition .......................................................................................... 6

3.1.2 Marine Equipment Deployment .................................................................................. 6 3.1.3 Water Conveyance ...................................................................................................... 6

Sediment Removal/Unloading Equipment ..................................................................... 7 3.2

Site Demobilization ........................................................................................................ 7 3.3

Sediment Segregation, Staging, Pre-Processing and Disposal ............................................... 8 4.

Infrastructure Improvements Off-Loading System ......................................................... 8 4.1

Sediment and Debris Offloading .................................................................................... 8 4.2

4.2.1 Segregated Large Debris ............................................................................................. 8 4.2.2 Sediment with Debris .................................................................................................. 8 Hauling from East Peninsula to Sediment Processing Pad ............................................. 9 4.3

4.3.1 Infrastructure Improvements ....................................................................................... 9 4.3.2 Sediment Processing Pad, Sediment Transfer Pad (STP), and Load-Out Pad ............ 9

4.3.3 Operations ................................................................................................................. 10 Sediment Processing Operations .................................................................................. 10 4.4

4.4.1 Debris Removal at Sediment Processing Pad ........................................................... 10 4.4.2 Slack Drying and Soil Conditioning/Stabilization .................................................... 10 Sediment and Debris Transportation and Off-Site Disposal ........................................ 11 4.5

Dewatering Water Collection and Treatment ............................................................... 12 4.6

Breakwater Construction Operations .................................................................................... 14 5.







Stone Materials Staging Area ....................................................................................... 14 5.1

Stone Handling and Loading ........................................................................................ 14 5.2

Control of Stone Placement Line and Grade ................................................................ 15 5.3

Stone Placement ............................................................................................................ 15 5.4

References ............................................................................................................................. 16 6.

Drawings from the Final Design for Ashland Breakwater

Drawing 2 Existing Conditions

Drawing 5 Site Plan and Haul Routes

Drawing 6 Dewatering Flow Plan

Drawing 8 Breakwater Plan View







Introduction 1.

The purpose of the work described in this Remedial Action Quality Assurance Project Plan -

Revision 1, Addendum 1 for Ashland Breakwater (RA QAPP Addendum 1) is to construct a

breakwater to protect the Phase 2 sediment dredging activities. This RA QAPP Addendum 1 is

focused on work detailed in the Final Design for Ashland Breakwater (FE JV, 2015a) addressing

a specific portion of the offshore area outside of the designated remedial area. Numerous studies

and investigation have been performed to date in an effort to understand the Site contaminants

and conditions. The Conceptual Site Model within the URS Remedial Investigation Report

(URS, 2007) report and the Remedial Action Quality Assurance Project Plan - Revision 1

(FE JV, 2014) detail the history of the site and the known contaminants and their suspected

sources and extent. The Monitoring Plan for Ashland Breakwater (FE JV, 2015b), which is

Appendix F in the Final Design, details the performance standards to be evaluated along with a

summary of the known key sediment parameters in the vicinity of the construction area.

The following sections of this RA QAPP Addendum 1 present the Scope of Work for

construction of the Ashland/NSP Lakefront Site breakwater (breakwater). The breakwater

design and construction will be performed by the Foth Infrastructure & Environment/Envirocon

Joint Venture (FE JV). The FE JV is supported in the breakwater design by W.F. Baird &

Associates Ltd. (Baird) and J.F. Brennan Company, Inc. (Brennan). Additional marine

contractors will be selected for actual breakwater construction.

The focus of the work to be performed is construction of the breakwater. PAH-impacted

sediments from the Ashland/NSP Lakefront Site may be present in the eastern portion of the

dredging operation. However, most of the work described in subsequent sections of this

worksheet will be outside of potentially impacted areas. Thus the primary focus of the

monitoring for this project is on turbidity/total suspended solids, as for a typical navigational

dredge operation. However, water column samples will be collected in the eastern 400 feet of

the propose breakwater structure during sediment removal to monitor for the presence of

contaminants of concern, consistent with the proposed Wet Dredge Pilot Study (Anchor QEA,

2015).







Site Preparation 2.

The following describes certain general tasks to be completed in preparation for breakwater

construction. Due to Phase 1 RA activities that have preceded the proposed breakwater

construction, site preparation activities will be minimal. One specific site preparation activity

under evaluation is the use of a water-side facility for stone material staging. The stone staging

location would provide for a material (stone) stockpiling area and a location to load stone

materials onto barges for subsequent placement and construction of the breakwater.

The connection of the breakwater wall to the mainland will be to the western arm of the Prentice

Avenue Boat Launch (also referred to as the east peninsula) in the Kreher Park area. This site

will serve as the main access point for the unloading of sediment and debris material into tandem

dump trucks with sealed tailgates for transport to the materials staging/processing area.

Drawing 2 shows the existing site conditions, the proposed breakwater footprint and the location

of the proposed stone materials staging area.

Site Security 2.1

Access to the Kreher Park portion of the Phase 1 RA area (proposed for use in sediment

staging/processing, dewatering and water treatment) will be secured during execution of this

activity. Temporary traffic controls will be implemented, as necessary, in the vicinity of work

areas in and near city streets.

Pre-Construction Erosion Control Measures 2.2

Erosion control measures will be implemented to meet best management practices (BMP) at all

areas where land disturbance will occur in excess of required minimum limits. It is expected that

erosion control measures will be necessary for: 1) sediment dewatering activities in the Kreher

Park portion of the Phase 1 RA area, 2) site preparation activities on the east peninsula that

extends from the Prentice Avenue Boat Launch parking lot to the proposed breakwater

connection, and 3) the stone materials staging area. Sediment staging and dewatering areas to be

used for the breakwater construction project will include pads already constructed and currently

occupied by Allsite and Mahaffey structures or other Site areas used for the Phase 1 RA

activities (Drawings 2 and 5). The Allsite structure was removed in April 2015.

Utility Abandonments and Protection 2.3

Existing utilities within the Phase 1 RA area and within the breakwater footprint area will be

identified through Wisconsin Diggers Hotline and protected as necessary for safe execution of

the work. Known utilities within the Phase 1 RA area shown on Drawings 5 and 6, including

utilities installed in support of the Phase 1 activities.

Temporary Utilities 2.4

Electric service is required for the operation of pumps, air monitoring devices, lighting, and other

support activities. New transformers for electrical services were established for the former







Allsite structure and the Temporary Water Treatment System (Temporary WTS) and protected

with 3,000 lbs concrete blocks where on-site traffic was/is expected.

Temporary Facilities 2.5

The existing field office located at the northeast corner of 3rd Avenue and U.S. Highway 2 will

be used for the breakwater project. Additionally, the breakwater construction contractor will

establish an office trailer near the stone materials staging area.

Pre- and Post-Construction Inspections 2.6

Pile driving, large truck traffic, and other construction activities could potentially damage nearby

facilities and roadways. Pre-construction conditions and post-construction conditions will be

documented by photography, videos, and documented inspections.

Erosion Control 2.7

Grading for haul roads and working areas will be established in the Kreher Park area prior to

construction of the breakwater. Similarly, haul roads and stockpile areas will be prepared at the

stone materials staging area. Drainage control for these areas will focus on limiting run-on and

run-off to/from work areas. Details for erosion controls are presented on Drawing 11.







Sediment Removal 3.

Mobilization and Site Set-Up 3.1

Mobilization of sediment removal personnel and equipment to the Ashland location is expected

to take approximately three weeks. A pre-construction bathymetric survey will be obtained to

document existing mudline conditions in the proposed breakwater footprint.

3.1.1 Wooden Dock Demolition

The deck will be removed with an excavator and placed in roll off containers or trucks for direct

local landfill disposal or on-site sizing, if necessary, prior to disposal. The pilings will be

removed utilizing conventional removal methods. The condition of the pilings is not currently

known. Older pilings have a tendency to break off at the ground/mudline. The team will work

to remove all pilings, as necessary, to allow for sediment removal and breakwater construction.

Pilings will be inspected and if suspected of being or are impacted with tPAH, they will be

disposed of at the VONCO landfill Subtitle-D disposal facility, located in Duluth, Minnesota.

Non-impacted pilings and deck boards will be disposed of at the Ashland Construction &

Demolition Landfill facility.

3.1.2 Marine Equipment Deployment

FE JV will deploy to the water sectional barges, an excavator for the sediment removal plant, as

well as a small tugboat for movement of material barges and additional ancillary equipment, as

necessary. All waterborne equipment deployments will take place at the city marina, as

coordinated with the marina operator. Two great lakes hopper barges for the active storage and

transport of excavated materials will be mobilized to the area as well. The off-loader will be

staged on a barge and will be used to off-load sediments from hopper barges to haul trucks.

Containment curtains or material slides may also be used in order to capture any leakage from

the off-loader bucket that may occur. The off-loading of excavated materials shall be done in a

clean and efficient manner.

3.1.3 Water Conveyance

Residual water remaining in the hopper barges will be removed by an on-site dewatering system.

Once a loaded hopper barge is brought to the off-loading area, the majority of the residual water

will be removed by pumping it to a pretreatment filtration geotextile bag (geobag) system prior

to pumping to the existing Temporary WTS. A small hydraulic submersible pump, as shown on

Illustration 4-24, will be placed into the barge prior to sediment being off-loaded. This 3-inch

pump has the ability to pass 1.5-inch solids and will be suspended into the barge just below the

water surface. The pump will transport the water via a 4-inch high density polyethylene (HDPE)

pipe to the initial water filtration facility. This type of pipe is heat fused so that there are no

mechanical joints that could possibly leak. The pump-off work is performed by a deckhand who

will be stationed on the off-load barge. In this way, the operator of the material handler (off load

machine) does not have responsibility for any of the water pumping duties and can focus on

loading trucks.







Off-loading will begin on the opposite end of the hopper barge from the pump which causes the

barge to list towards the pump. This aids in decanting the water from the sediment as the water

gravitates towards the pump.

During the dewatering process some silt, sand, and small debris will enter the pump-off system.

The hydraulic pump is equipped with a grated screen over the intake to prevent large debris from

entering. This particular pump has been chosen because it has enough total dynamic head (TDH)

and horsepower to adequately pump the turbid water to the initial water filtration system.

Sediment Removal/Unloading Equipment 3.2

For the removal of sediments and debris, FE JV will utilize a Liebherr 954 excavator equipped

with specially designed, environmental level cut bucket (Illustration 4-25) on a sectional barge

with a built in moon pool, encompassed by a turbidity curtain. The excavator will remove

woody debris and sediment with the environmental bucket inside the moon pool and place the

materials into adjacent hopper barges. Large debris, anticipated in the form of dimensional

timber or trees, will be placed into roll-off boxes located on the marine plant and transported to

the off-load area where it will be off-loaded for disposal. The specialized environmental bucket

was chosen due to its ability to sufficiently handle debris such as the timber present on the

lakebed at the Site. It has the ability to “pinch” closed and not allow free material from exiting

the bucket, while trapping minimal free water in the process.

Two hopper barges, with a capacity of approximately 600 cy each, will be used to transport

sediment to the off-loading area. Two barges were chosen for maximum efficiency of the

process and limited operating space. One barge will be loaded at the marine plant while the

other can be unloaded at the off-load area. These hopper barges will be moved to the off-load

area by a vessel selected from FE JV’s fleet of push boats. Depending on allowable drafts, it is

likely the full capacity of the hopper barges will not be utilized. Cycle times will be adjusted to

the most efficient loading capacity.

Once a barge arrives at the off-load area, it will be off-loaded by a barge-mounted hydraulic

material handler utilizing a clam bucket. The material will then be loaded into tandem dump

trucks, equipped with sealed tail gates. Remaining free water within the barge, which is

anticipated to be no more than 40,000 gallons per day (average of approximately 24,200 gallons

per day is expected), will be hydraulically pumped to a geobag located as shown in Drawing 6

for initial filtration, then to a 100,000 gallon modutank, before processing through the existing

on-site Temporary WTS.

Site Demobilization 3.3

At the completion of all sediment removal activities, all sediment removal equipment will be

removed from the Site. All areas used during the sediment removal and off-loading operations

will be restored. The off-load platform will be removed at the request of NSPW but could

possibly stay in place for the Phase 2 RA. FE JV anticipates demobilization to take about one

week to complete.







Sediment Segregation, Staging, Pre-Processing and 4.

Disposal

The following section describes off-loading operations of the sediment transport barges at the

east peninsula.

Infrastructure Improvements Off-Loading System 4.1

Once a haul road is constructed on the east peninsula, as further discussed in Section 4.9, FE JV

will construct an unloading and staging area. The purpose of the marine unloading area is to

provide a point at which all hopper barges can be efficiently unloaded into trucks. The location

of the off-load area is immediately outside the footprint of the breakwater, on the northwestern

corner of the east peninsula as shown on Drawing 5. The purpose of locating the off-loading

area here is to take advantage of the greatest water depth, while still not infringing on the

breakwater footprint or the boat landing.

Sediment and Debris Offloading 4.2

Once a hopper barge arrives at the off-load area, sediment will be off-loaded, utilizing a barge-

mounted hydraulic material handler employing a clamshell bucket, into tandem dump trucks

with water tight sealed gates. The off-loading material handler and trucks will be staged in a

manner to minimize the reach from the barge to truck.

4.2.1 Segregated Large Debris

Large amounts of organic debris in the form of dimensional timber, trees and/or piling is

expected to be encountered. Large pieces removed during the sediment removal process will be

segregated and temporarily stored in roll-off boxes on the marine plant. On a periodic basis, or

when the roll-off container is full, the marine plant will be moved to the off-load area; and the

roll-off will be lifted and set on the peninsula and transferred, via roll-off truck, to the former

Allsite pad (Drawing 5). The box will be dumped, as necessary and wood debris will be

properly sized for acceptance at VONCO landfill. Once sized, the debris will be loaded back

into the roll-off box utilizing a mini-excavator with thumb attachment, manifested and ready for

shipment to VONCO landfill. Smaller debris will be mixed with conditioned sediment and

loaded for transport and disposal at the Load-out Pad (LOP).

4.2.2 Sediment with Debris

During the sediment removal process smaller debris that remains co-mingled with the sediment

will not be segregated. For the off-loading process, a spill apron will be placed on the ground

between the material handler and truck to collect any residual sediment that falls from the

bucket. Additionally, plastic will be placed on the fence, adjacent to the truck, to prevent any

splattering of sediment on the rip-rap on the east side of the haul road. Once the truck is loaded,

the tailgate, side boards, and wheels will be cleaned with brooms, as necessary, before

proceeding to the sediment processing pad (SPP).







Hauling from East Peninsula to Sediment Processing Pad 4.3

4.3.1 Infrastructure Improvements

Several improvements are required on-site to facilitate the hauling of materials from the off-

loading area to the sediment processing pad. Within the footprint of the east peninsula,

improvements will occur once erosion and sediment controls have been installed. Such controls

include silt fence and/or sediment filtration tubes (wattle) installed around the perimeter of the

peninsula. On the east side of the peninsula, temporary fence panels will be installed from the

north end of the peninsula extending south along the top of bank, and further south just west of

the existing Prentice Avenue Boat Launch boardwalk and then tying into the existing fence along

the east side of Prentice Avenue. Additionally, light poles that exist within the middle of the

peninsula must be relocated to an alignment just west of the boardwalk and fence in order to

provide lighting to boaters at night. Several trees will need to be removed within the peninsula

to allow for construction of a haul road. See the planned site plan and haul routes indicated on

Drawings 5 and 6.

A gravel haul road will be constructed from the north end of the peninsula to northern edge of

the existing asphalt pad (former Allsite pad). Another gravel haul road will be constructed from

the west end of the asphalt pad (formerly the treated soil bin stockpile area) and it will traverse

north of the existing Temporary WTS to the SPP. The haul roads will be constructed of

approximately 6 inches of 1-1/2-inch stone (poorly sorted) over 12 inches of breaker rock, which

is underlined by non-woven geo-fabric. Road widths vary, but generally are proposed at 14-feet

wide. A D5 dozer and rubber tire wheel loader will place the breaker rock, while the dozer will

be used to place the smaller stone. Compaction of the smaller stone will be completed with a

vibratory roller with aid of water, as needed.

The haul road that exits the peninsula crosses the existing shoreline bulkhead sheet pile wall and

will be located west of an existing storm water drain inlet. This inlet is protected with wattle.

Course stone (rip-rap) will be placed on the south side of the wall to allow storm water to flow

from the west to the inlet. Gravel will be placed over the wall and 1 inch thick road plates will

span the wall alignment in order to dissipate the load across the wall. The haul road that

traverses north of the Temporary WTS will cross an existing storm water drainage swale. To

bridge this swale, a 38 x 24 inch arched CMP will be installed, with the haul road constructed

above it.

4.3.2 Sediment Processing Pad, Sediment Transfer Pad (STP), and Load-Out Pad

Drawing 5 depicts the location of the three main pads that are used for sediment processing

operations. Sediment management capabilities are sized to accommodate an expected high-side

average of 600 cy of in-place sediments per day, 7 days per week. The SPP consists of the pad

that was constructed for the Wet Dredge Pilot Study (Anchor QEA, 2014) sediment processing,

located west of the Temporary WTS. This pad is enclosed by a Mahaffey fabric structure where

sediment debris removal, slack drying and conditioning with reagent will take place. Adjacent to

the SPP, is the STP area (not enclosed) where dried and conditioned sediment will be staged and

loaded for transfer to the former Allsite pad located to the east and north side of Kreher Park







project area. This pad will be used to stage and stockpile conditioned sediment and debris for

load-out for off-site transportation and disposal at the VONCO landfill and is denoted as the

LOP.

4.3.3 Operations

Tandem trucks will be used to haul the off-loaded sediment from the sediment off-loading area

to the SPP. Large debris that has been segregated during sediment removal operations in

containers is hauled to the LOP for final sizing and load-out to transportation and disposal.

Sediment containing smaller debris will be hauled to the SPP, where smaller debris may be

removed, and the sediment is slack dried and conditioned using pebble lime reagent or alternate

material as defined in the specifications. From the STP, the material will be loaded into an

articulated truck for staging at the LOP where the conditioned sediment and debris, confirmed to

pass the paint filter test, will be loaded for transportation and disposal to VONCO landfill.

Once in the structure, the material will be dumped where necessary to be strategically introduced

into the processing sequence. Empty trucks may exit at the west end of the structure depending

on the current activities in the structure or on the STP, which is east of the SPP and Mahaffey

structure. Once emptied, trucks will proceed back to the east peninsula platform. To avoid

congestion along the haul route, empty trucks traverse the haul south of the Temporary WTS,

then turn toward the LOP and access the newly constructed haul road (Drawing 5).

Sediment Processing Operations 4.4

Sediment and debris processing operations include operations conducted on the SPP, STP, and

LOP. The objective is to produce a final product that is loaded for transportation and disposal at

the VONCO landfill after it is verified to meet acceptance criteria, which includes passing the

paint filter test and meeting the waste profile characterization.

4.4.1 Debris Removal at Sediment Processing Pad

Large debris will be removed, segregated and staged at the LOP during sediment removal

operations for sizing. Sediment containing smaller wood/debris will be hauled and dumped on

the SPP. Operations personnel subsequently will use a trackhoe bucket with thumb to process

and pick out the larger remaining wood and debris pieces and segregate it. Segregated wood and

debris will be transported to the LOP for final sizing, if necessary, and load-out. Smaller wood

debris remains in the sediment will be stabilized along with the sediment without adverse effect

to the slack drying and sediment conditioning operations.

4.4.2 Slack Drying and Soil Conditioning/Stabilization

The objective of processing the sediment is to meet VONCO landfill disposal acceptance criteria,

which includes passing the paint filter test. The dredged sediment will be primarily fine sand, at

times, containing some silt and woody debris. At the SPP, the sediment will be further decanted,

dried and conditioned as necessary before being loaded for staging at the LOP and finally loaded







for off-site transportation and disposal. The dredge spoils will be placed on the SPP, mixed and

stockpiled for decanting, drying and stabilization.

Based on treatability tests and experience, some conditioning reagent is added to the sediments

to aid in slack drying in order to pass the paint filter test. FE JV proposes to use a granular

pebble quick-lime product provided by Graymont Corporation of Superior, Wisconsin. This

product was used successfully during the Phase 1 Upland Remediation project in 2014. It is

expected that approximately 2%-3% of pebble lime will be used to complete slack drying and

conditioning. It will be introduced at an early stage in the slack drying operations. A front-end

loader will be used to mix the pebble lime in with the sediments in discrete batches. Operations

personnel will ensure that potential dust and odor generation is minimized during reagent mixing

operations.

After the sediment has been initially mixed, operations personnel will again mix and stack the

sediment an average of approximately 4 feet in height. Mixing and slack drying will continue as

needed for proper conditioning of the sediment. The high average projected daily sediment

removal rate is 600 in-place cy per day. The average planned storage time for sediment on the

SPP is more than 4 days. The average daily stabilization rate corresponds to the high average

daily sediment removal rate of approximately 600 in-place cy per day.

Operations personnel will air-dry the sediments by bucket-turning stockpiled materials using a

loader. The weight of the stockpile will aid in passive gravimetric dewatering. All decant water

(as well as any precipitation contact water from the STP) will be collected on the SPP an STP in

the collection swale sump and pumped from the northeast end of the STP to the Temporary WTS

for treatment.

Ellis Avenue will be used for access for lime delivery. Bulk loads of pebble lime will be

delivered to the inside of the Mahaffey structure on the SPP. From there, the pebble lime will be

off-loaded and used as needed for conditioning sediments. The lime will be delivered into the

west side of the Mahaffey structure to keep vehicle delivery tires in a clean condition. If needed,

based on prevailing conditions, tires will be decontaminated at exit.

Sediment and Debris Transportation and Off-Site Disposal 4.5

Conditioned sediment will be staged at the LOP for load-out to an off-site disposal facility, or for

beneficial use if an appropriate end use can be identified and approved. Tarps will be used as

necessary to cover stockpiled materials to minimize precipitation water impacts to the LOP, or

fugitive dust generation. A WA380 front-end loader (or equivalent) with bucket scale will be

used to load trucks for hauling off-site. This loader can also handle geobag change-outs when

necessary. The anticipated hauling quantity is expected to be approximately 500 tons per day at

five days per week, based on vendor hauling capacity availability.

The haul route for the off-site haul trucks are indicated on Drawing 5. The trucks access from

Prentice Avenue and enter the LOP from the east entrance. From the LOP, the sediments and







debris which are verified to meet the disposal criteria will be loaded onto haul trucks for off-site

transportation and disposal. Passing the paint filter test will be verified before loading. A rubber

tired front-end loader with bucket scale will be used to load the 22-ton capacity trucks. The scale

will be calibrated and checked weekly and allows trucks to be loaded to within 100 pounds of

optimal loads, without exceeding Wisconsin Department of Transportation regulations. The

loader will have the back-up alarm turned off until 7:00 a.m. and uses a strobe light during night

times of operation.

Before exiting, trucks pulls forward and engage the tarp system. The trucks will be inspected

and dry decontaminated with a broom, as needed. A manifest will be provided to the driver for

the VONCO landfill. The loaded trucks will egress from the northeast corner of the LOP back

onto Prentice Avenue. It is expected that approximately 25 trucks will be loaded and shipped per

day on average. Load-out operations will occur from 6:00 a.m. to 5:00 p.m., Monday through

Friday, with possible operations of 6:00 a.m. to noon on Saturdays.

Dewatering Water Collection and Treatment 4.6

Dewatering operations to be conducted in support of the sediment removal operations include the

following sources of water generated to be collected and treated in the Temporary WTS:

Barge decant water from sediment transport barges

Decant water from SPP operations

Precipitation water to be collected and treated from STP and LOP

These sources and estimated volume and flow rates are discussed further below. Drawing 6

presents the flow path for collected dewatering flows. In general, the dewatering flow

management includes the following approach:

Barge decant water from sediment transport barges.

This water is pumped during and after sediment off-loading operations from the off-

loading area. The operations are discussed in Section 4.7, but basically include pumping

to a geobag for primary filtration, then to a 100,000 gallon Modutank #1 for settling and

surge storage (both located on the south side of the LOP), and ultimately pumping to the

Temporary WTS for treatment via Middle Sump #2 on the LOP.

SPP decant water.

This water is collected and pumped from the northeastern end of the SPP/STP drainage

swale sump to a 100,000 gallon Modutank #2 for storage and sedimentation (located on

the northern portion of Kreher Park), and subsequently pumped to the Temporary WTS

for treatment.







Precipitation contact water from STP and LOP.

The water from the STP is pumped to the Temporary WTS via the drainage sump at the

northeastern end of the SPP/STP to the Modutank #2. Precipitation contact water from

the LOP is pumped via Sumps #1, #2, and #3 to the Temporary WTS directly for

treatment. If significant storm events occur (e.g., greater than 1-inch rain event), the

contact water from the LOP may be pumped to either Modutank #1 or #2 as available for

surge capacity storage.







Breakwater Construction Operations 5.

Stone Materials Staging Area 5.1

The Bay Front bulkhead wall, to be utilized for staging and loading of stone (Drawing 7), will be

fenced to prevent unauthorized pedestrian and vehicle traffic. Signs will be posted which

delineate the area as a hard hat construction zone and to identify truck routes.

Two improved minimum 22-foot wide gravel road surfaces will be installed from the proposed

stone stockpile area through cuts made in the berm on the east side of the site to provide access

from the stockpile area to the barge loading area. (Detail 3/11, Drawing 11). At the entrance to

the stone stockpile area a gravel tracking pad will be constructed to help control tracking of

material onto city streets by trucks (Detail 2/11, Drawing 11). Any material tracked on to the

public roads would be promptly cleared. The laydown area for stone stockpiling will be

prepared with an isolation barrier to prevent coal from contaminating the breakwater stone.

Crane mats will be used as needed to create a stable surface for stone loading onto barges along

the east wall of the Bay Front bulkhead wall. A loading ramp will be used to provide drive-on

access for loaders directly onto the barges for transport of bedding, core and filter stone. Light

duty, three-pile, clusters will be installed along the ramp area of the bulkhead wall face to hold

the barges off the wall while loading and to accommodate the downward position of the loading

ramp and to prevent barges from contacting and damaging the wall.

A crane barge will also tie up to the bulkhead wall area and self-load armor stone that is fed to it

by front end loaders.

Stone Handling and Loading 5.2

Bedding, core, and filter stone brought to the Bay Front site via truck will be dumped on the

prepared pad and pushed up into the stock pile. Armor stone brought to the site via truck and

semi-trailer will be unloaded with a loader equipped with forks. Bedding, core, and filter stone

will be loaded onto deck barges using rubber tire front-end loaders. They will travel to the

bulkhead wall face on the constructed road cut through the berm and enter the barge via a ramp.

The ramp will have a hinge point so that it is in a downward position when barge loading

commences and in an upward position upon completion. The two deck barges used to transport

stone will be equipped with 4 foot tall timber sidewalls to contain the stone and prevent the

loader from driving off the edge.

Armor stone will be loaded by a crane barge positioned along the east side of the bulkhead wall.

Armor stone will be loaded using a stone grab bucket by moving the stone directly from a stone

staging area (small stockpile formed by loaders) within the crane’s reach.







Control of Stone Placement Line and Grade 5.3

A hydrographic survey of the breakwater area and stone loading area will be performed prior to

stone placement. Piles will be driven along the centerline of the proposed breakwater structure at

100-foot spacing to delineate a visual alignment for the stone placement crew (Drawing 8).

Batter boards will be attached to these piles at the maximum upper tolerance of the under layer

limit and then later at the upper limit of the armor stone layer. These batter boards will allow the

stone placement crew and QC personnel to easily monitor stone placement progress along the

water line. A gage board will be set using a total station for use in sounding stone underwater as

it is placed. Soundings will be performed manually by a crew member working off a raft aligned

perpendicular to the centerline of the structure. Distances from the centerline of the structure

will be marked on the ramp and soundings will be taken to verify stone placement as it takes

place and in advance of any QC survey. Upon completion of any layer and before it is covered

with the next size stone, QC surveys will be performed with a total station in accordance to the

specifications.

Stone Placement 5.4

Bedding, core and filter stone (Drawing 9) will be placed by a crane barge equipped with an

approximate 100-ton crane. It will utilize a seven tine rock grapple bucket to place the stone.

Stone placement will be verified by the placement crew by pole sounding and by visual

observation sighting across the batter boards. Two deck barges will be used for this operation.

One barge will be at the Bay Front site being loaded while the other is at the breakwater

placement site. The barges will work in a cycle, constantly supplying stone to the placement

derrick. A tug will tow the loaded barge over to the placement derrick and swap out the empty

barge. Completed bedding and core stone will not be placed more than 100 feet in advance of

filter stone to prevent damage from inclement weather.

Armor stone will be placed by the large crane barge with a 140-ton crane. This barge has

enough deck space and capacity to carry 350 ton of stone on its own deck. The armor stone will

be placed utilizing a 4-finger stone grab. The line and grade of all stone will be verified by the

placement crew as stone is set. Barges loaded with stone at the Bay Front bulkhead wall will be

towed to the project site where the stone will be placed to build the breakwater. When the stone

has been emptied from the deck of the barge, it will be towed back to be loaded again and start

another cycle.







References 6.

Anchor QEA, LLC, 2015. Monitoring Plan Wet Dredge Pilot Study – Ashland Lakefront

Superfund Site. Prepared for Northern States Power – Wisconsin. January 2015.

Foth Infrastructure & Environment/Envirocon Joint Venture, 2015a. Final Design for Ashland

Breakwater – Ashland/NSP Lakefront Site. July 2015.

Foth Infrastructure & Environment/Envirocon Joint Venture, 2015b. Monitoring Plan for

Ashland Breakwater, Appendix F of the Final Design for Ashland Breakwater –

Ashland/NSP Lakefront Site. July 2015.

URS, 2007. Remedial Investigation Report Ashland/Northern States Power Lakefront Superfund

Site. August 31, 2007.

U.S. Environmental Protection Agency, 2010. Record of Decision. September 2010.

U.S. Environmental Protection Agency, 2012. Consent Decree between the United States,

Wisconsin, Northern States Power Company, and the Bad River and Red Cliff Bands of

The Lake Superior Tribe of Chippewa Indians. June 2012.


Drawings from the Final Design for Ashland Breakwater

N

1, 7 4-6,0DD E

1,745,000 E

+

524,000 N

523,000 N

LEGEND PROPOSED SEDIMENT REMOVAL

----- FOR BREAKWATER CONSTRUCTION

--595 - EXISTING CONTOUR (SEE NOTE 2)

KREHER PARK AREA

522,000 N

NOTES:

1. COORDINATE SYSTEM - WISCONSIN STATE PLANE, NORTH ZONE. U.S FEET. HORIZONTAL DATUM IS NAD83. VERTICAL DATUM IS NAVD88.

2. THE BASE MAP CONTOURS COMPILED FROM THE FOLLOWING SURVEYS:

UPLAND SURVEY FROM FOTH/ENVIROCON JOINT VENTURE DATED MAY, 2015. BROWN CONTOURS.

BATHYMETRIC SURVEY PERFORMED BY J.F. BRENNAN. ON 06/12/2015. ORANGE CONTOURS.

BASE MAP MODIFIED FROM OCTOBER 12. 2012 IMAGERY. FEATURES ALTERED TO REFLECT ANTICIPATED CONDITIONS POST -PHASE 1 RA.

521,000 N

0

EXISTING CONomoNS

HORIZONTAL SCALE:

200'

2

z Ui z 8 "' 3E

400'

• 201~ FOTH INFRASTRUCTURE tt ENVIRONMENT, U.C

LEGEND

Loading and Disposal Haul Route

Sediment Haul Route

Stabilized Sediment Transport Route

NOTES:

1. BASE MAP FEATURES (MONITORING WELLS, FENCES, BUILDINGS, ROADS) AND UTILITIES ARE CURRENT AS OF JUNE, 2015

2. BASE MAP PREPARED FROM OCTOBER 12, 2012 IMAGERY.

0

~ ... i • E I ~~

~~~ 0~8! i"~ ~~~ ~~.; ~i~

UlOa~

§~~~ ~fl;~~ g:~o of2~i

~r=~ g t; w::;"'=> ~og~ ~~~~ ~ ,_ r

~ g

~

~ 5

~ ~

z Ui z 8 "' 3E

SI1E PLAN AND

HAUL ROUTES

HORIZONTAL SCALE:

50' 100'

5 • 201~ FOTH INFRASTRUCTURE tt ENVIRONMENT, U.C

LEGEND

----e•• Existing Pipeline

Proposed Pipeline

NOTES:

1. BASE MAP FEATURES (MONITORING WELLS. FENCES, BUILDINGS, ROADS) AND UTILITIES ARE CURRENT AS OF JUNE. 2015

2. BASE MAP PREPARED FROM OCTOBER 12, 2012 IMAGERY.

0

DEWATERING FlDW PLAN

HORIZONTAL SCALE:

60'

6

z Ui z 8 "' 3E

120'


523,500 N

523,000 N

522,500 N

N

LEGEND ~595~ EXISTING CONTOUR

(SEE NOTE 2)

BREAKWATER SLOPE INTERCEPT LINE

----- BREAKWATER CONSTRUCTION AREA

NOTES: 1. COORDINATE SYSTEM - WISCONSIN STATE PLANE,

NORTH ZONE. U.S FEET. HORIZONTAL DATUM IS NAD83, VERTICAL DATUM IS NAVOBB.

2. NAVD88 601.0' = 0.0' LOW WATER DATUM (LWD).

3. NAVIGATION AIDS TO BE APPROVED BY USCG PRIOR TO INSTALLATION.

4. THE BASE MAP CONTOURS COMPILED FROM THE FOLLOWING SURVEYS:

UPLAND SURVEY FROM FOTH/ENVIROCON JOINT VENTURE DATED MAY, 2015. BROWN CONTOURS.

BATHYMETRIC SURVEY PERFORMED BY J.F. BRENNAN. ON 06/12/2015. ORANGE CONTOURS.

5. BASE MAP MODIFIED FROM OCTOBER 12, 2012 IMAGERY. FEATURES ALTERED TO REFLECT ANTICIPATED CONDITIONS POST -PHASE 1 RA.

521,500 N

0

BRE'AKWAlER PLAN VIEW

HORIZONTAL SCALE:

100'

8

z Ui z 8 "' 3E

200'








QAPP Worksheet #11

Project Quality Objectives - Systematic Planning Process Statements

The overall objective is to monitor environmental conditions within the water column of

Chequamegon Bay during sediment removal and breakwater construction activities. PAH-impacted

sediments above the site-specific cleanup goals may be present in the eastern 400 feet of the

proposed breakwater footprint and will be removed and disposed off-site. Only changed or updated

Worksheet #11 information, relevant to the breakwater project, is presented here; otherwise refer to

the RA QAPP, Revision 1 (FE JV, 2012).

WHAT WILL THE DATA BE USED FOR?

Turbidity monitoring data will be used to assess the effectiveness of suspended sediment

containment and control Best Management Practices (BMP) in place to maintain water quality in

Chequamegon Bay during sediment removal in the breakwater footprint and subsequent

construction of the breakwater. In the eastern 400 feet of the proposed breakwater footprint,

monitoring for contaminants of concern in the water column will confirm if turbidity monitoring is

a good surrogate for monitoring potential mobilization of PAH-related compounds during sediment

removal activities. The specific monitoring approach is described in the Monitoring Plan for

Ashland Breakwater (Monitoring Plan) submitted as Appendix F to the Final Design for Ashland

Breakwater (FE JV, 2015).

WHAT TYPES OF DATA ARE NEEDED?

Water turbidity via field instrumentation will inform the field team regarding whether BMPs

employed during sediment removal and breakwater construction are below the Alert and Action

levels established for the project in the Monitoring Plan, as well as when water conditions are

suitable to move the turbidity barriers (moon pool) as the dredging progresses.

WHERE, WHEN, AND HOW SHOULD THE DATA BE COLLECTED/GENERATED?

The samples will be collected from the water column in Chequamegon Bay in a manner as

described in the Monitoring Plan. Sampling will be performed at the specified frequency in that

document.




Section No. QAPP Worksheets #14 and #16


X:\FOTH\IE\Xcel\15X001-00\10000 Reports\RA QAPP-Rev 1, Add 1\RA QAPP Worksheet 14 and 16 Rev 1 Add 1.docx

QAPP Worksheet #14 and #16

Project Tasks and Schedule

The current project schedule, including a detailed breakdown of project tasks, is included in the

Final Design for Ashland Breakwater (FE JV, 2015) as Appendix G.

Title

Revision No.

Revision Date

Section No.

Page Nos.

Matrix

Code Location

Rounds of

Sampling(3)

Field

Duplicates

Eqpt.

Blanks MS/MSD

Field

Parameters

Field

Instrument

Used

Laboratory

Parameters

Laboratory

Analytical Method

Sample

Preservation Sample Container

Sample

Holding

Time

# Sample

Tests

VOCs EPA 8260NaHSO4, MeOH, 4

C3 - 40 ml Vials 14 Days 61

SVOCs EPA 8270 4° C 1 - 1 L amber jar 7 Days 61

Sulfide SM 4500-S2Zinc Acetate,

4° C250mL - plastic 7 days 61

TSS 2540D 4° C 1 - 100 ml plastic jar 7 Days 61

Total Organic

CarbonSW 9060 HCL, 4° C 250mL - plastic 28 days 61

All Dredging

Areas4 2 1,600 None None None YSI 6 Series None None None None None 12,800

1 1 1 1 1 TVOCsMiniRAE

3000 PIDNone None None None None 13

2 1 None None NonePM10

particulates

Thermo

Scientific

DataRAM 4

None None None None None 20

1 Details of the sampling and monitoring to be performed can be found in Sections 3 and 5 of the Monitoring Plan for Ashland Breakwater , Appendix F to the Final Design for Ashland Breakwater . Prepared by: mgm

2 The number of samples reflects the number of samples per round of sampling where applicable. Surface water samples will be collected for water quality analyses from 3 locations plus a Checked by: kda1

background location at two water depth intervals twice per week during sediment removal in the eastern 400 ft section of the proposed breakwater.

3 15 days Duration of sediment removal in the eastern 400 ft of breakwater area, during which water quality samples will be collected.

25 days Duration of sediment removal, during which turbidity monitoring will be conducted every two hours (assuming a 14 hour work day).

60 days Duration of breakwater construction, during which air quality samples will be collected.

Air

Sampling Summary(1)

Ashland/NSP Lakefront Site - Breakwater

Sample Matrix

(see Matrix Code)

Number of

Locations /

Samples(2)

Water Quality

Meter

YSI 6 Series

Eastern End of

Dredging Area

Water Column

Air Monitoring

Locations10A

5 5 3Temperature

TurbiditySurface Water SW

4 2 6

RA Quality Assurance Project Plan

Revision 1, Addendum 1

July 2015

QAPP Worksheet #20

Page 1 of 1

QAPP Worksheet #20

X:\FOTH\IE\Xcel\15X001-00\10000 Reports\RA QAPP-Rev 1, Add 1\RA QAPP Worksheet 20 Rev 1 Add 1 - Sampling Summary.xlsx Sampling

Title:Title: RA Quality Assurance Project Plan






QAPP Worksheet #21

Project Sampling SOP References Table - Breakwater Construction

Reference

Number Title

Revision

Date

Originating

Organization Equipment Type

Modified for

Project

Work?

(Y/N)

Comments

1610 Water Quality Sampling of Surface

Water

6/4/2015 Foth I&E Peristaltic Pump N See Appendix A of

Monitoring Plan

for Ashland

Breakwater (FE JV,

July 2015)

1611 Turbidity Monitoring 2/13/2014 Foth I&E YSI, 6-Series meter N See Appendix A of

Monitoring Plan

for Ashland

Breakwater (FE JV,

July 2015)







QAPP Worksheet #22

Field Equipment Calibration, Maintenance, Testing, and Inspection Table

Field

Equipment

Calibration

Activity

Maintenance

Activity

Testing/

Inspection

Activity

Frequency Acceptance Criteria Corrective

Action

Responsible

Person SOP Reference

YSI 6 Series

Turbidity Meter

Calibrate

with Standard

Reference

Solutions

N/A N/A Weekly; anytime

anomaly

suspected

+/-2% of reading or 0.3

NTU, whichever is

greater

Replace unit FE JV

Sampler

(oversight

by RD QA

Manager)

SOP 1611 –

Turbidity

Monitoring

N/A N/A Visual

Inspection

Prior to day’s

activities

No defects noted Replace unit

N/A Check/replace

battery

N/A Prior to day’s

activities;

anytime anomaly

suspected

Acceptable

calibration/operation

Replace

power cords;

replace unit

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