REPORT Materials Management Contingency Plan · This Materials Management Contingency Plan (MMCP) provides guidance regarding handling of materials that will be generated during demolition

REPORT

Materials Management Contingency Plan Redevelopment Project

Shoreham Facility

Minneapolis, Minnesota

Submitted to:

Soo Line Railway Company d/b/a Canadian Pacific Railway 120 South 6th Street Suite 700

Minneapolis, Minnesota 55402

Submitted by:

Golder Associates Inc.

200 Century Parkway, Suite C Mt. Laurel, New Jersey, USA 08054

+1 856 793-2005

023-6105

March 2019

March 2019

023-6105

i

Distribution List Soo Line Railway Company d.b.a Canadian Pacific Railway

Minnesota Pollution Control Agency

Ashland LLC

March 2019 023-6105

ii

Table of Contents

1.0 PURPOSE OF THE MMCP ............................................................................................................................. 1

2.0 BACKGROUND AND HISTORIC DATA ........................................................................................................ 1

3.0 SURROUNDING AREA CONSIDERATIONS ................................................................................................ 1

4.0 ANTICIPATED MATERIAL TYPES ................................................................................................................ 2

5.0 SAMPLING OF EXCAVATED MATERIALS .................................................................................................. 3

5.1 Soil Management with Pre-excavation Sampling................................................................................. 3

5.2 Soil Management without Pre-excavation Sampling ........................................................................... 4

6.0 IMPLEMENTATION ........................................................................................................................................ 5

7.0 MATERIALS MANANGEMENT DURING CONSTRUCTION ........................................................................ 5

8.0 REDEVELOPMENT ........................................................................................................................................ 6

9.0 REFERENCES ................................................................................................................................................ 6

TABLES Table 1: Anticipated Material Types and Disposition

Table 2: Waste Characterization Testing Frequency for Excavated Materials

FIGURES

Figure 1: Site Layout

APPENDICES

APPENDIX A Conceptual Grading Plan Cut & Fill Drawing

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G:\PROJECTS\2002 PROJECTS\023-6105 CPR\REDEVELOPMENT PROJECT\MMCP\SENT TO MPCA\MMCP RPT.3.12.2019.DOCX 1

1.0 PURPOSE OF THE MMCP

Execution of the Redevelopment Project on the East Side of the Soo Line Shoreham Facility in Minneapolis,

Minnesota (Facility) requires the management of materials from several sources and locations in preparation for

planned redevelopment. Demolition of existing structures will produce construction debris that must be managed.

Soil excavation will be required to establish an engineered subgrade for a paved storage area and for a

stormwater retention pond. This Materials Management Contingency Plan (MMCP) provides guidance regarding

handling of materials that will be generated during demolition and subgrade preparation for the project, including

how the materials will be screened and segregated for hauling off-site for disposal or retention on-site for further

characterization and/or reuse. This MMCP identifies the data required (i.e., analytical sampling) to determine if

materials can be beneficially reused on site or require off-site disposal. The MMCP also addresses requirements

for stockpiling fill to be reused and the importation of clean backfill materials, including the approval process for

receiving such materials for use in the redevelopment.

2.0 BACKGROUND AND HISTORIC DATA

The Shoreham Facility encompasses an area of approximately 230 acres in the northern portion of Minneapolis

and has been used by Soo Line and its predecessors for railroad operations from the late 1880s through to the

present day. In addition, portions of the Facility have been leased by, or owned by, other commercial operators

since the early 1900s. The Redevelopment Project is located within the East Side Shoreham Facility in an area

known to have been contaminated by various commercial activities over time.

The East Side Shoreham Facility includes approximately 38 acres (see Figure 1) that has been used since the

1880s primarily as a rail yard by Soo Line Railroad and its predecessors. Multiple site investigations have shown

soil and groundwater impacts from petroleum related compounds and solvents and the East Side Shoreham

Facility is being remediated under the Minnesota Pollution Control Agency (MPCA) Voluntary Investigation and

Cleanup (VIC) program (Site 5080).

Response Action activities have been conducted from 2006 to date in accordance with the Response Action Plan

(RAP) for the Site dated August 31, 2005 (Golder and Geomega, 2005) approved by the MPCA on January 20,

2006. These activities have included the removal of approximately four feet of petroleum and Volatile Organic

Compound (VOC)-impacted soil in several areas, with an orange colored geotextile being placed at the bottom of

each excavation area to enable visual demarcation between placed clean fill and undisturbed soil. These

excavations were intended to address readily accessible soils and did not necessarily remove the full depth of

contaminated soil.

3.0 SURROUNDING AREA CONSIDERATIONS

The extent of the Redevelopment Project is shown in Figure 1 and is generally bounded to the east by Central

Avenue, and to the south by Saint Anthony’s Cemetery. A small tract of land along Central Avenue, identified as

the Former Ashland Lease Area (FALA), is not included within the Redevelopment Project area. Ashland Inc. (a

former tenant) retains responsibility for implementing the RAP in the FALA. Aside from providing an upgrade to

the power service, all construction activity will avoid this area so as not to impede the remediation activities of

Ashland or their subcontractors. There will be no soil disturbance in the FALA.

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4.0 ANTICIPATED MATERIAL TYPES

It is anticipated that several types of materials will be encountered during demolition and excavation to the

designed subgrade elevation throughout the project area, including, but not limited to, the following:

Asphalt pavement and curbing;

Intact concrete;

Clean fill overlying demarcation geotextile within previously excavated areas;

Historic fill and contaminated soil

Miscellaneous debris from demolition of structures including, but not limited to, concrete, brick, rock, glass,

metal, plastic, wood, blocks, bars, pipe, and other building materials

Several regulated materials surveys have been completed on various structures to identify the nature and quantity

of asbestos containing materials (ACM), lead-based paint and any other regulated materials. Additional

regulated materials surveys may be performed, as necessary.

Table 1 provides the anticipated means of disposal for the identified material types.

Table 1: Anticipated Material Types and Disposition

Material Type Disposition Candidate for Direct Loading

Required Sampling to Designate Final Disposition

Asphalt Off-site disposal

Yes None

Concrete Off-site disposal

No Chip samples, as required by disposal facility

Concrete (Uncontaminated – per Beneficial Reuse (MN Administrative Rules, Part 7035.2861)

Reuse as backfill on site

No Characterization and/or sampling during the regulated materials surveys

Clean Fill Reuse as fill on site

N/A None

Historic Fill and contaminated soil

Off-site disposal

Potentially Pre-characterization or Sampling by CQA Officer following stockpiling

Miscellaneous Debris Off-site disposal

No Waste Characterization Sampling by CQA Officer following stockpiling

Demolition Debris Regulated Building Materials

Off-site disposal

Yes Sampling performed during the regulated materials surveys

Demolition Debris Non-regulated materials

Off-site disposal

Yes None

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5.0 SAMPLING OF EXCAVATED MATERIALS

Waste characterization sampling of excavated materials will be performed to meet the sampling frequency

required by the disposal facility identified by the client. As a reference, Table 2 presents the frequency of testing

by Vonco Landfill in accordance with MPCA Rules, Chapter 7045. Per the Conceptual Grading Plan Cut & Fill

drawing prepared by Stantec dated February 26, 2018 (Appendix A), it is anticipated that approximately 79,000

cubic yards (cy) of excavated material will be generated during subgrade preparation for the Redevelopment

Project and the establishment of a retention pond, including approximately 6,700 cy of previously placed imported

clean fill (volume obtained from Sunde Land Surveying, LLC dated November 3, 2006).

Previously placed clean fill will be segregated and stockpiled for reuse. The remaining excavated materials may

either be direct loaded for off-site disposal based on pre-excavation sampling and field screening or may be

stockpiled and sampled post-excavation. Sampling frequency requirements are provided in Table 2. Waste

characterization samples will be analyzed for VOCs, Gasoline Range Organics (GRO), Diesel Range Organics

(DRO), Polychlorinated biphenyls (PCBs), Toxicity characteristic leaching procedure (TCLP) metals (or total

metals and evaluation by 20 times rule), flashpoint, paint filter test, and any other tests as required by the disposal

facility.

Table 2: Waste Characterization Testing Frequency for Excavated Materials

5.1 Soil Management with Pre-excavation Sampling

In order to reduce the volume of materials to be stockpiled, pre-excavation sampling may be undertaken, to

determine if direct loading of the excavated materials will be acceptable to the selected disposal facility. Pre-

excavation samples will be biased to the depths of greatest impact as indicated by field screening including visual

and olfactory means, and a photo-ionization detector (PID) or flame ionization detector (FID). The pre-

characterization samples will be collected at approximately the midpoint depth of proposed excavations.

Sampling will be conducted using test pits or shallow direct-push drilling methods. Sampling will follow the

procedures outlined in the Standard Operating Procedure Document (SOP) for the Facility (AMEC, 2015) as

applicable. Quality assurance procedures will be in accordance with the SOP including verification that

laboratories and testing equipment comply with standards, checking test equipment calibration data against

certified standards, and chain of custody procedures for analytical samples.

Upon completion of pre-excavation sampling, the proposed excavation area will be divided into sectors of similar

soils to assist in the management of the excavated soils. Sectors will be marked with paint or other suitable

identifiers. During the excavation of soils, an environmental technician will be onsite to perform additional

inspection of the excavated soils to determine their potential classification as clean soils for reuse onsite,

potentially contaminated soils for further assessment, or contaminated soils for transport and disposal off-site.

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Inspection will include visual and olfactory assessment and field screening using an appropriately calibrated PID

or FID. Each instrument will be calibrated before the start of screening each day. The environmental technician

will be stationed upwind of all excavations being performed and will have the analytical data from any pre-

characterization sampling available. Soils will be field-screened as they are removed and prior to loading in the

haul truck. The frequency of screening will be based on visual/olfactory evidence and PID readings but shall

include at least one representative sample for every 10 cubic yards of excavated soils. The screening methods

and readings will be documented in the field as they are obtained. Soils not meeting disposal facility requirements

for direct loading will be stockpiled for additional testing.

5.2 Soil Management without Pre-excavation Sampling

Overall, the Redevelopment Project will consist of two main areas of excavation within the construction footprint.

Excavation activities in the southern portion for the proposed retention basin will cover an area of approximately

46,000 square feet (sf) with the excavation extending up to approximate depth of 11.5 feet. The remaining portion

of the construction footprint designated for the paved storage area will cover approximately 756,000 sf and have

an average depth of approximately 2.5 feet. The excavated soils from both areas will equate to the total

estimated 79,000 cy of soils to be excavated in the Redevelopment Project.

Clean fill soil overlying the demarcation geotextile within the previously excavated areas that does not contain

trash or debris, or show signs of staining, odor or PID detections will be stockpiled separately with the intent for

reuse as fill material within the limits of the construction site. Approximately 6,700 cy of clean soils are

anticipated.

Other excavated soils from outside the known clean fill area will be field screened using the methods described in

section 5.1 and will be stockpiled on site as follows:

Soils that show no evidence of trash or debris, or visual staining, but have a PID reading of <10ppm, will be

placed in a “Potentially Contaminated Soils” stockpile for further characterization testing prior to disposal.

Approximately 65,000 to 70,500 cy of Potentially Contaminated Soil is anticipated. This volume of Potentially

Contaminated Soil will be segregated into smaller stockpiles based on similar characteristics (e.g., color, texture,

etc).

Soils containing trash and debris, visual staining or PID readings >10ppm will be placed in a separate

“Contaminated Soils” stockpile for further characterization testing prior to disposal. Approximately 1,000 to 2,000

cy of contaminated soil is anticipated.

Excavation activities shall be observed by the environmental technician and any unexpected conditions, such as

the presence of free product or potentially hazardous materials will result in such materials being diverted to a

separate on-site stockpile for further characterization.

Construction debris not containing regulated materials may be direct loaded for off-site disposal or staged in a

separate stockpile area prior to disposal. Regulated materials shall be handled separately and in accordance with

all applicable requirements.

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6.0 IMPLEMENTATION

Prior to excavation activities in the southeasterly corner of the Redevelopment Project, a new building to

accommodate the existing pump and treat (P&T) equipment will be constructed outside the limits of the proposed

paved storage area. The existing equipment will be relocated to the new building with appropriate piping

modifications to maintain discharge requirements. The P&T system and the associated wells shall be protected to

prevent damage or comprise to the operation of the remediation system. If any P&T components or wells are

damaged during construction or relocation, they shall be repaired in a timely manner.

During excavation of soils and other materials, it is anticipated that temporary stockpiles will be constructed in an

area north of the FALA (see Figure 1).

If pre-excavation sampling of soils is undertaken, sample identification numbers will be assigned consistent with

procedures used at the Site during prior investigations. The sample identification will indicate the general location,

depth, and date that the sample was collected. Samples will be transported to the designated analytical laboratory

for analysis. Completion of all laboratory testing is expected to require a period of approximately three weeks.

A licensed surveyor will be utilized to locate and determine the ground surface elevation at each pre-excavation

sample to accurately establish lateral and vertical locations of samples.

Upon completion of the pre-excavation sampling (if undertaken), figures will be developed using the analytical

data to delineate the limits of excavation which meet the requirements for direct hauling to off-site disposal as

approved by the disposal facility. If additional sampling or analyses are required for an excavation area, that area

will be identified as material to be stockpiled and protected on site pending analysis and will not be direct loaded

for disposal.

7.0 MATERIALS MANANGEMENT DURING CONSTRUCTION

All temporary stockpiles will be covered with polyethylene sheeting and sand bags when not in use. All stockpiles

will be covered before rain events and at the end of every work day to minimize the generation of contact water

and for dust control.

All stockpile areas will be constructed to be stable against collapse, prevent surface water run-on or runoff, and

meet the construction details outlined in an approved Erosion and Sediment Control Plan. Stockpile areas will

have perimeter and surface erosion control measures.

Excavated soil designated for reuse as backfill will be stockpiled in a suitable location to minimize handling and

facilitate efficient backfilling operations. A similar procedure will be used when determining stockpile locations for

imported soil material brought on-site for use as backfill. Imported soil will be segregated from impacted soils at

all times.

Impacted material designated for off-site disposal will be sent to disposal facilities that have been pre-selected by

Canadian Pacific to receive the designated materials and subject to pre-approval by the disposal facility.

Waste transporters will post appropriate placards on transport vehicles according to the requirements outlined in

applicable Department of Transportation (DOT) regulations. Waste shipment documentation, including Waste

Profiles and manifests or Bills of Lading, as applicable, will be prepared and provided to Canadian Pacific for

review and execution prior to transport.

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8.0 REDEVELOPMENT

As part of the subgrade preparation for the Redevelopment Project, approximately 1,400 cubic yards of backfill

materials will be required. Clean fill soil overlying the demarcation geotextile may be used for backfill material.

Any additional materials will be imported and evaluated for acceptance based on analytical results and will be

certified clean fill material consisting of virgin quarried material from a licensed quarry or mine or will be

unregulated fill as defined by the MPCA Risk-Based Site Evaluation (RBSE) Manual. Unregulated fill will require

documentation of site history of the source materials and analytical results below concentrations defined in the

RBSE Manual.

9.0 REFERENCES

AMEC Foster Wheeler Environmental & Infrastructure, Inc., July 2002, lastly revised August 2015. Standard

Operating Procedure Document (to be furnished upon request)

Golder Associates Inc. and Geomega Inc., August 2005. Voluntary Investigation and Cleanup Program

Response Action Plan for the East Side Shoreham Facility (VIC Program Site ID VP5080) Minneapolis, MN

Minnesota Pollution Control Agency, VIC Version 4 Revised May 2002. Minnesota Pollution Control Agency,

Voluntary Investigation and Cleanup (VIC) VIC Program Site ID 5080

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Documents

REPORT Materials Management Contingency Plan · This Materials Management Contingency Plan (MMCP) provides guidance regarding handling of materials that will be generated during demolition