appendix a phase ii environmental site assessment and

44
Winnipeg THE CITY OF WINNIPEG APPENDIX A Phase II Environmental Site Assessment and Remediation Action Plan for 849 Ravelston, June 2016 BID OPPORTUNITY NO. 874-2016 FORMER FUEL SITES SOIL REMEDIATION AT 849 RAVELSTON AND 1500 PLESSIS

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Page 1: APPENDIX A Phase II Environmental Site Assessment and

Winnipeg

THE CITY OF WINNIPEG

APPENDIX A

Phase II Environmental SiteAssessment and RemediationAction Plan for 849 Ravelston,

June 2016

BID OPPORTUNITY NO. 874-2016

FORMER FUEL SITES SOIL REMEDIATION AT 849 RAVELSTON AND 1500PLESSIS

Page 2: APPENDIX A Phase II Environmental Site Assessment and
Page 3: APPENDIX A Phase II Environmental Site Assessment and

Submitted To:

S...

WrnmpegPHASE II ESA

849 RAVELSTON AVENUE WEST, WINNIPEG, MANITOBA

FILE NO. 16-217-03

:-

N1i-TCNCCNSULTJNG LlMI1-D

“Engineering and Testing Solutions That Work for You”

6 - 854 Marion StreetWinnipeg, ManitobaCanadaR2J 0K4

Phone: (204) 233-1694Facsimile: (204) 235-1579e-mail: eng_techmts.net

www.eng-tech .ca

JULY 2016

Page 4: APPENDIX A Phase II Environmental Site Assessment and

City of Winnipeg File No. 16-217-03Phase II ESA — 849 Ravelston Avenue West, Winnipeg, Manitoba Page ii

TABLE OF CONTENTS

PAGE

TABLE OF CONTENTS ii

1.0 INTRODUCTION I1.1 Terms of Reference I1.2 Objectives I1.3 Scope of Work 11.4 Methodology 1

2.0 SITE CONDITIONS 22.1 Site Location and Description 22.2 Site Topography and Drainage 22.3 Site Geology and Groundwater 2

3.0 PHASE II ESA 23.1 Test Hole Drilling 23.2 Soil Sampling Program 23.3 Analytical Analyses 33.4 Remediation Criteria 33.5 Discussion 43.6 Conclusions 5

4.0 CLOSURE 5

BIBLIOGRAPHY!REFERENCES

LIST OF TABLESTable I - Petroleum Hydrocarbons in Soil (Commercial Criteria for Generic Situation)Table 2 - Petroleum Hydrocarbons in Soil (Commercial Criteria for Vapour Inhalation Situation)Table 3 - Petroleum Hydrocarbons in Soil (Residential/Criteria for Generic Situation)Table 4 - Petroleum Hydrocarbons in Soil (Residential Criteria for Vapour Inhalation Situation)

LIST OF FIGURESFigure 1 — General Site Location PlanFigure 2 — Site/Test Hole Location Plan and Photograph Index

LIST OF APPENDICESAppendix A - Stratigraphic Test Hole Logs (9)Appendix B - Site Photographs (4)Appendix C - Analytical Test Results (1)

Page 5: APPENDIX A Phase II Environmental Site Assessment and

City of Winnipeg File No. 16-217-03Phase II ESA— 849 Ravelston Avenue, Winnipeg, Manitoba Page 1

1.0 INTRODUCTION

1.1 Terms of Reference

ENG-TECH Consulting Limited (ENG-TECH) was retained by City of Winnipeg to conduct aPhase II Environmental Site Assessment (ESA) near the abandoned Gasoline and Diesel aboveground storage tanks (ASTs) and former underground storage tanks (ASTs) at 849 RavelstonAvenue in Winnipeg, Manitoba. The Site is located on Ravelston Avenue northwest of PlessisRoad in the City of Winnipeg, Manitoba as shown in Figures 1 and 2, and Photographs 1 to 4(Appendix B). Assessment is related to the area near the current aboveground diesel andgasoline storage tanks and the former underground storage tanks located to the northwest ofthe existing building, any previous tanks, pumps, and spillages beyond the areas of the AST’sand UST’s are outside this scope of work. In this report, the property will subsequently bereferred to as the Site with the investigation limited to the area near the tanks as mentionedabove.

ENG-TECH received authorization from Jennefer Larson to proceed with the Phase II ESA onMay 5, 2016.

1.2 Objectives

The purpose of the Phase II ESA was to further delineate the presence or absence of petroleumhydrocarbons in the soil in the vicinity of current ASTs and pump islands and in the location ofthe former USTs and pump island. The land use of the Site is currently commercial, and beingproposed for redeveloped having a mixture of commercial and residential buildings.

1.3 Scope of Work

The Phase II ESA involved the following:

• Clearance of underground utility services.

• A test hole drilling and soil sampling program for petroleum hydrocarbons, including fieldtesting the soil samples for volatile hydrocarbon vapours and the collection of duplicatesoil samples for petroleum hydrocarbon laboratory testing.

• A laboratory soil testing program for petroleum hydrocarbons (benzene, toluene, ethylbenzene, xylene (BTEX), and fractions Fl to F4), glycols, and metals.

• An evaluation of the results.

• An ESA report outlining the work conducted and findings.

1.4 Methodology

The environmental investigation was conducted using guidelines and criteria outlined inpublications from American Society for Testing and Materials (ASTM), the Canadian Council ofMinisters of the Environment (CCME), Canadian Standards Association and ManitobaConservation (formerly Manitoba Environment). A bibliography/reference list of the publicationsis attached.

Page 6: APPENDIX A Phase II Environmental Site Assessment and

City of Winnipeg File No. 16-217-03Phase II ESA — 849 Ravelston Avenue, Winnipeg, Manitoba Page 2

2.0 SITE CONDITIONS

2.1 Site Location and Description

The Site is located on Ravelston Avenue northwest of Plessis Road in the City of Winnipeg,Manitoba as shown in Figures 1 and 2. The Site is approximately 6,344 square meters in plan,with buildings on Site which are currently unoccupied as the property is schedule forredevelopment, and registered in the City of Winnipeg under certificate of roll number04005426500. The remainder of the Site is predominately covered with asphalt and limitedgrass area as shown in Figure 2.

2.2 Site Topography and Drainage

The Site is relatively flat with surface drainage directed overland to catch basin locatedthroughout the Site and on Ravelston Avenue.

2.3 Site Geology and Groundwater

Local geological maps and water well logs show that the subsurface stratigraphy in this area ofWinnipeg normally consists of fill soils (such as topsoil and granular), underlain by lacustrine siltand clay ranging in depth from 9.0 to 12.0 m. A deposit of silty till varying in thickness from 6 to10 m is typically encountered between the lacustrine deposits and the underlain bedrock.Bedrock in this area of Winnipeg typically consists of dolomite with limestone beds of variousthicknesses from the Selkirk Member of the Red River Formation. The bedrock formation wasformed from the Paleozoic Era during the Ordovician Period.

Near surface groundwater elevations (perched groundwater) can exist at the Site andthroughout the area, and will vary on a seasonal basis and from site to site. Perchedgroundwater elevations are predominantly controlled by site conditions, such as the type andthickness of fill soils. The near static groundwater elevation is encountered at approximately 6m below existing grade in the underlain high plasticity lacustrine clay deposits. The near staticgroundwater elevation is controlled by the underlain bedrock aquifer. There are no aquifersabove the bedrock. The potential for impact to the aquifer was considered unlikely due to thethickness of the underlain highly plastic clay deposits.

3.0 PHASE II ESA

3.1 Test Hole Drilling

On May 24, 2016 ENG-TECH supervised the drilling of a total of nine (9) test holes (TH1 toTH9) surrounding the gasoline and diesel AST’s and the former UST’s located northwest of theAST’s. Test holes were drilled to a depth of 3.0 to 4.6 m below existing grade using a trackmounted Geoprobe 7822DT drill rig equipped with 125 mm diameter solid stem continuous flightaugers, owned and operated by Maple Leaf Drilling Ltd. The test holes were backfilled with thesoil auger cuttings and bentonite, upon the completion of drilling. The test hole locations areshown on Figure 2, while stratigraphic logs outlining the soil and groundwater conditions areshown in Appendix A.

3.2 Soil Sampling Program

Duplicate soil samples (set of two) were collected at regular depth intervals and at stratigraphicchanges from the test holes, and visually classified using the Unified Soil Classification System

Page 7: APPENDIX A Phase II Environmental Site Assessment and

City of Winnipeg File No. 16-217-03Phase II ESA — 849 Ravelston Avenue, Winnipeg, Manitoba Page 3

(USCS). One of each duplicate set of soil samples collected was subjected to an AmbientTemperature Headspace (ATH) vapour test using a RKI Eagle calibrated using hexane. Briefly,the procedures used for ATH vapour testing were as follows:

• Collect a soil sample and remove the perimeter edges. Cut the sample into small piecesand place them into a plastic sealable bag.

• Induce air into the bag such that the bag is taught and seal the bag.

• Allow the vapours emanating from the soil to accumulate in the headspace of the bag atan ambient temperature for about 15 minutes.

• Measure the hydrocarbon vapour concentration in the headspace of the bag by placingthe probe of the RKI Eagle into the bag.

The remaining duplicate soil sample from each set collected had the perimeters edges removedand the sample examined for the presence of petroleum hydrocarbon odours and staining, andthen:

• If the remaining duplicate soil sample had visual signs of petroleum hydrocarbon stainingor petroleum hydrocarbon odours detected, then the soil sample was placed in a cleanglass jar and sealed with a Teflon lined lid and placed in a cooler packed with ice.

• If no visual signs of staining or odours were detected then the duplicate soil sample wasplaced in a sealed bag with a minimal volume of air, and then placed in a cooler packedwith ice for potential submission for laboratory analysis after review of the ATH vapourconcentration.

• The recorded ATH Vapour concentrations for all samples are reviewed, and if theduplicate soil samples with the highest elevated concentrations had not been placed injars, then the duplicate soil samples in the coolers were removed and the soil from thesealed bags placed in clean glass jars, sealed with Teflon lids and placed back in thecooler packed with ice.

Upon the completion of the field work, the soil samples in jars in the cooler packed with the icewere transported to ENG-TECH’s office, then to ALS Laboratory Group in Winnipeg, Manitobafor analytical testing of petroleum hydrocarbons.

3.3 Analytical Analyses

ATH vapour concentrations (ppm) collected in the field are reported on the test hole logs, andthe readings ranged from zero (0) to 240 ppm. Possible slight hydrocarbon odour and/orstaining was observed at TH5, TH6, and TH9.

Eight (8) representative soil samples (based on headspace) were selected and submitted toALS Laboratory Group (an accredited laboratory) and tested for BTEX and fractions Fl to F4.The results are shown in Tables I to 4, while a copy of the results from ALS Laboratory Groupis shown in Appendix C.

3.4 Remediation Criteria

The results from the analytical analyses were compared to the values outlined in the mostrecent Canadian Council of the Ministers of the Environment (CCME) publications. The

Page 8: APPENDIX A Phase II Environmental Site Assessment and

City of Winnipeg File No. 16-217-03Phase II ESA — 849 Ravelston Avenue, Winnipeg, Manitoba Page 4

petroleum hydrocarbons BTEX and fractions Fl to F4 results were compared to the CCMEgeneric and vapour inhalation criteria for commercial land use. Generic criteria for commercialland use would not restrict Site commercial activities. Given the potential for futuredevelopment of the Site as residential land-use an assessment of the analytical results forBTEX and fractions Fl to F4 following the CCME generic and vapour inhalation criteria forresidential land use is warranted.

3.5 Discussion

Stratigraphy

Aboveground Storage Tank and Pump Island

Overall, the stratigraphy at TH1 to TH4 in the vicinity of the AST’s consisted of 200 mm thicklayer of concrete underlain by a 50 mm thick layer of gravel fill, and was followed by a 965 mmthick layer of clay fill which was underlain by native clay to the depth explored. The gravel fillwas medium brown, moist, medium dense, poorly graded, and fine grained, while the clay fillwas black, moist, firm, medium plastic, and contained trace silt. The underlying native clay wasmedium, moist, firm, highly plastic, and contained trace silt.

Former Underground Storage Tank Nest

The stratigraphy at TH5 and TH6 consisted of 2.30 to 4.1 m thick layer of pea gravel which wasfollowed by clay to the depth explored, except at TH6 where auger refusal occured 4.10 mbelow grade on suspected concrete rubble, The pea gravel encountered was medium brown,moist to wet, loose, poorly graded, medium to fine grained, with a slight hydrocarbon odourdetected at 0.8 m below grade. The native clay layer encountered at TH5 at 2.30 m below gradewas dark brown, moist, firm, medium plastic, and contained trace silt.

The stratigraphy at TH7 and TH8 consisted of 50 mm thick layer of gravel fill that was underlainby a 1.17 m thick layer of clay fill then native clay to the depth explored. The gravel fill layer wasmedium brown, moist, medium dense, poorly graded, fine grained while the clay fill layer wasdark brown, moist, firm, medium plastic, and contained trace silt. The native clay was darkbrown, moist, firm, medium plastic, and contained trace silt.

The stratigraphy at TH9 consisted of a 50 mm thick layer of gravel fill which was followed by a1.17 m thick layer of clay fill then native clay to the depth explored. The gravel fill and clay fillwere similar to what was encountered at TH7 and TH8. The native clay was dark brown, moist,firm, medium plastic, and contained trace silt.

Groundwater

TH1 to TH4 and TH7 to TH9 were dry and no sloughing was encountered at the time of drilling,while sloughing and seepage was encountered within the pea gravel at TH5 and TH6 at thetime of the drilling.

ATH Vapours

The ATH vapour readings are shown on the test hole summary logs. The vapourconcentrations ranged from zero (0) to 240 ppm. slight hydrocarbon odour and/or possiblestaining was observed at TH5, TH6, and TH9.

Page 9: APPENDIX A Phase II Environmental Site Assessment and

City of Winnipeg File No. 16-217-03Phase II ESA— 849 Ravelston Avenue, Winnipeg, Manitoba Page 5

Analytical Results

The petroleum hydrocarbons BTEX and fractions Fl to F4 results were compared to the CCMEgeneric and vapour inhalation criteria for both commercial and residential land use due to thepotential for future residential development of the Site. Generic criteria for commercial land usewould not restrict Site commercial activities.

In the generic situations for both commercial and residential land use the soil sample from TH4—S4 at 3 m was over the CCME criterion for benzene and TH5-S2 at 0.8 m was over the F2criterion as shown on Table 1. When the results were compared to vapour inhalation forcommercial and residential both sample results were below the applicable CCME criteria asshown on Tables 2 and 4. The remaining samples collected and analysed for petroleumhydrocarbon were all below the laboratory detection limits and therefore below the applicablecommercial and residential CCME guidelines under the generic and vapour inhalation criteria.

3.6 Conclusions

Petroleum hydrocarbon concentrations from the soil samples tested from TH4 and TH5 wereabove select CCME criteria for commercial and residential land uses under the genericsituation, but were below the applicable vapour inhalation criteria for both commercial andresidential land uses. Therefore, no further action is warranted at this time in the vicinity of theASTs and former USTs.

Additional sampling and testing can be performed beneath the tanks and pump island duringtheir removal as per the Guideline for Dismantling and Removal of Petroleum Storage TanksSystems (Manitoba Conservation February 2007), with extra attention in the area of TH4 due tothe presence of benzene.

4.0 CLOSURE

The conclusion and recommendations presented in this report were based on the scope of workoutlined for the purpose of the investigation, and were prepared in accordance with acceptedprofessional engineering/geo-science principles and practices. However, as with anyenvironmental site assessment the intent is to identify and address, not eliminate, potentialenvironmental concerns.

The observations made at the Site do not apply to areas which could not be observed. Inaddition, other materials or compounds not investigated or addressed or beyond the scope ofwork could be present at the Site. If this occurs, ENG-TECH Consulting Limited must benotified to determine whether modification to any part of this report should be conducted. If youhave any questions or concerns presented herein, please contact the undersigned.

Prepared By,

Trevor Robertson, B.Sc., EP., C.ETEnvironmental Professional

P:’2O16\Prects217(C.OY3frwoTnk Site)’,RpcI1&.217.O3 Report (F).doc

Page 10: APPENDIX A Phase II Environmental Site Assessment and

BIBLIOGRAPHYIREFERENCES

Page 11: APPENDIX A Phase II Environmental Site Assessment and

BIBLIOGRAPHYIREFERENCES

American Society for Testing and Materials, “Standard Practice for Environment SiteAssessments: Phase I Environmental Site Assessment Process”, Designation E 1527-05.

American Society for Testing and Materials, “Standard Practice for Environmental SiteAssessments: Transaction Screen Process”, E 1528-06.

American Society for Testing and Materials, “Standard Guide for Corrective Action forPetroleum Releases”, E 1599.

Province of Manitoba, Department of Natural Resources, Water & Resources Branch,“Groundwater Availability Map Series (Selkirk)”, R.N. Betcher, 1986

Canadian Standards Association, “Phase I Environmental Site Assessment Z768-01”, (R2012).

Canada Mortgage and Housing Corporation, “Environmental Site Assessments, A Summary forApproved Lenders”, 1993.

Manitoba Conservation, “Guideline for Designation of Contaminated Sites in Manitoba”,Guideline 97-01, March 1997.

Manitoba Conservation, “Guideline for Environmental Site Investigations In Manitoba”, Guideline98-01, May 2002.

Ontario Ministry of Environmental and Energy, “Guideline for Use at Contaminated Sites inOntario”, Revised February 1997.

Canadian Council of Ministers of the Environment, “Canada Wide Standards for PetroleumHydrocarbons (PHC) in Soil”, April 30 — May 1, 2001, Revised January 2008.

Canadian Council of Ministers of the Environment, “Canadian Soil Quality Guidelines for theProtection of Environment and Human Health”, 1999, Updated 2004

Page 12: APPENDIX A Phase II Environmental Site Assessment and

LIST OF TABLES

Table I - Petroleum Hydrocarbons in Soil (Commercial Site Criteria for Generic Situation)Table 2 - Petroleum Hydrocarbons in Soil (Commercial Site for Vapour Inhalation)Table 3 - Petroleum Hydrocarbons in Soil (Residential Site Criteria for Generic Situation)Table 4 - Petroleum Hydrocarbons in Soil (Residential Site for Vapour Inhalation)

Page 13: APPENDIX A Phase II Environmental Site Assessment and

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lth

for

0.29

1300

067

0016

00—

——

——

Fin

e-gr

aine

dS

ubso

ilS

oil

Qua

lity

Gui

deli

nefo

rH

uman

Hea

lth

for

0.03

014

0063

016

0—

——

——

Co

arse

-gra

lned

Su

rfac

eS

oil

Soi

lQ

uali

tyG

uide

line

for

Hum

anH

ealt

hfo

r0.

032

1500

670

170

——

——

Coa

rse-

grai

ned

Sub

soil

2008

CC

ME

Can

ada-

Wid

eS

tan

dar

ds

for

Pet

role

umH

ydro

carb

ons

(PH

Cs)

inS

oil

atC

omm

erci

alS

ite

for

Vap

our

Inha

lati

on(I

ndoo

r)

Soi

lC

rite

ria

for

Fin

e-gr

aine

dS

urf

ace

Soi

ls—

——

—46

0023

000

NA

NA

Soi

lC

rite

ria

for

Fin

e-gr

aine

dS

ubso

ils

——

——

4600

2300

0N

AN

A—

Soi

lC

rite

ria

for

Coar

se-g

rain

edS

urf

ace

Soi

ls—

——

—32

017

00N

AN

A—

Soil

Cri

teri

afo

rC

oar

se-g

rain

edS

ubso

ils

——

——

320

1700

NA

NA

Not

es:

1.A

llco

nce

ntr

atio

ns

are

inm

glkg

(ppm

).2.

The

soil

atth

esi

teco

nsi

sted

offi

ne-g

rain

edm

ater

ial,

3.C

oars

em

eans

coar

se-t

extu

red

soil

havi

nga

med

ian

grai

nsi

zeof

>75

pm.

4.C

once

ntra

tion

exce

edin

gC

CM

Ecr

iteri

afo

rSi

te=

[413

]

5.N

A=

Not

App

licab

le

EN

G-T

EC

HC

ON

SUL

TIN

GL

IMIT

ED

Page 15: APPENDIX A Phase II Environmental Site Assessment and

TA

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EU

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mp

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rain

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015

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ria

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rain

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240

320

1700

3300

(whe

rep

rote

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gro

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app

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for

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se-g

rain

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s—

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010

0035

0010

000

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es:

1.A

llco

ncen

trat

ions

are

inm

g/kg

(ppm

).2.

The

soil

atth

esi

teco

nsis

ted

ofco

arse

-gra

ined

mat

eria

l3.

Coa

rse

mea

ns

coar

se-t

extu

red

soil

havi

nga

med

ian

grai

nsi

zeof

>75

pm.

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once

ntra

tion

exce

edin

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CM

Ecr

iter

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rS

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13

JE

NG

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CH

CO

NSU

LT

ING

LIM

ITSO

Page 16: APPENDIX A Phase II Environmental Site Assessment and

TA

BL

E4

PE

TR

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EU

MH

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RO

CA

RB

ON

SIN

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(RE

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0.21

2600

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320

——

——

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e-gra

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rfac

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oil

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lQua

lity

Gui

deli

nefo

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0.21

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320

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——

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r0.

015

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arse

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ndoo

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teri

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ned

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face

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ls—

——

—71

036

00N

AN

A—

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Cri

teri

afo

rF

ine-

grai

ned

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soil

s—

——

—71

036

00N

AN

A—

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Cri

teri

afo

rC

oars

e-gr

aine

dS

urfa

ceS

oils

——

——

4019

0N

AN

A—

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Cri

teri

afo

rC

oars

e-gr

aine

dS

ubso

ils

——

——

4019

0N

AN

A—

Not

es:

1.A

llco

nce

ntr

atio

ns

are

inm

g/kg

(ppm

).2.

The

soil

atth

esi

teco

nsis

ted

offi

ne-g

rain

edm

ater

ial.

3.C

oars

em

eans

coar

se-t

extu

red

soil

havi

nga

med

ian

grai

nsi

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>75

urn.

4.C

once

ntra

tion

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edin

gC

CM

Ecr

iteri

afo

rSi

te=

[413]

5.N

AN

otA

ppli

cabl

e

Page 17: APPENDIX A Phase II Environmental Site Assessment and

LIST OF FIGURES

Figure 1 —Site Location PlanFigure 2 —Test Hole Location Plan & Photograph Index

Page 18: APPENDIX A Phase II Environmental Site Assessment and

LK1

SIT

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FW

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Page 19: APPENDIX A Phase II Environmental Site Assessment and

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Page 20: APPENDIX A Phase II Environmental Site Assessment and
Page 21: APPENDIX A Phase II Environmental Site Assessment and

LIST OF APPENDICES

Appendix A - Stratigraphic Test Hole Logs (9)Appendix B - Site Photographs (4)

Appendix C - Analytical Test Results (1)

Page 22: APPENDIX A Phase II Environmental Site Assessment and

APPENDIX A

Stratigraphic Test Hole Logs (9)

Page 23: APPENDIX A Phase II Environmental Site Assessment and

MODIFIED UNIFIED CLASSIFICATION SYSTEM FOR SOILS

GROUP GRAPH LABORATORY CLASSIFICATIONMAJOR DIVISION TYPICAL DESCRIPTIONSYMBOL SYMBOL CRITERLA

••* D. o WELL GRADED GRAVELS, GRAVEL-SANDGW • MIXTURES, LITTLE OR NO FINES C,J 4; C, = 1 TO 3CLEAN GRAVELS ..WE

=. S B (TRACE OR NOQ FINES) POORLY GRADED GRAVELS, GRAVEL-SAND NOT MEETING ABOVE

0 MIXTURES, LITTLE OR NO FINES REQUIREMENTS

>z,_x Lu

ATrERBERG LIMITS BELOW”A

DIRTY

GRAVELS(IMTH SOME OR

GM SILTY GRAVELS, GRAVEL-SAND-SILT MIXTURES LiNE OR PT. LESS THAN 4

5 MORE FINES) ATTERBERG LIMITS ABOVE “AWI— DC55 CLAYEY GRAVELS. GRAVEL-SAND-CLAY MIXTURES LINE AND P1. MORE THAN?

•‘:V:.’. WELL GRADED SANDS, GRAVELLY SANDS, LrTTLEOR D (O

< LL CLEANSANDS-.::--.-::.‘..

NOFINES C,—’6; Cc=._._=u;= 1103

8 zo (TRACEORNO ----FINES) : - ‘:-‘‘ POORLY GRADED SANDS, GRAVELLY SANDS, LITTLE NOT MEETING ABOVES

‘- Sc’10 Z -; OR NO FINES REQUIREMENTS

I- CI 5<LuS <UJ10 0) :::I” ATTERBERG UNITS BELOWA. Ill SM SILTY SANDS, BAND-SILT MIXTURES UNE OR P.1. LESS THAN 4DIRTY SANDS

CMTHSOMEOR —‘ MORE FINES) ATTERBERG UNTIE ABOVEA’

SC - CLAYBY SANDS. SAND-CLAY MIXTURES LINE AND RI. MORE THAN 7

UI5W

FLOUR, SILTY SANDS OF SUGH’TY PLASTICITYU LL S50% ML

INORGANIC SILTS AND VERY FINE SANDS, ROCK

-I’- WO() INORGANIC SILTS, MICACEOUS DRS LL’SO% NH

OIATOMACEOUS, FINE SANDY OR SILTY SOILSm

I—

INORGANIC CLAYS OF LOW PLASTICITY, GRAVELLY,SANDY OR SILTY CLAYS. LEAN CLAYS

30%.LL5O% CI

UILL530% CL

INCRGANICCLAYS OFUEDIUM PLASTICITY SILTY CLASSIFICATION IS0 CLAYS BASED UPON

PLASTICITY Cl-TARTS) 0>

(SEE BELOW)INORGANIC CLAYS OF HIGH PLASTICITY.z 0 LL’EQ% Cl-IFAT CLAYS

U-3:S

‘ LLo5S% DL ORGANICSILTSANOORGANICSILTYI- CLAYS OF LOW PLASTICITY

LL’50% OH5 ORGANIC CLAYS OF HIGH PLASTICITY

HIGHLY ORGANIC SOILS p PEAT AND OThER HIGHLY ORGANIC STRONG COLOUR OR ODOUR, ANDSOILS OFTEN FIBROUS TEXTURE

ADDrT1OIILAL SYMBOLS PLASTIC SOILS

SANDSTONE ::;:;::::::::::::POCKETTILL :114.1 GRANITE MOISTURE PLASTICITY INTRUSIONS CONSISTENCY PEN ITSFI

‘ DRY LOW ROOTUETS VERY SOFT <2FILLDAMP MEDIUM 0)11055 SOfl 0-0.5 2-4

TOPSOIL TE.C MOIST HIGH MICA FIRM 0.9-1.0 4-8CONCRETE .4 . - . WET GYPSUM STIFF 1.0-2,9 8-15

‘I. —- ... ...L ETC. VERY STIFF 2.5-4.0 15-31)SHALEHARD ‘4.0 ‘-30—. -I - -LIMESTONE i i

TSFx95,8kPa(q,) S0xa<PLASTICITY CHART FOR

SOIL DESCRIPTIONSSOILS PASSING 425 pm SIEVE

TRACE: 0-10% I BOULDERS: ‘200mm I COARSESAND: 2-4.75mmSOME: 10-20% I COBBLES: 75-200mm I MEDIUMSAN 0425-2mmSETH: 20-35% COURSEGIIAVEL: 19-75mm I FINESANO: 0075-0425mmAND: 35-50% I FINEORAVEL 415-18mm I FINES: <0.075mm

GRANULAR SOILS

u MOISTURE DENSITY GRADATION INTRUSIONS ffjDRY VERY LOOSE POORLY ROOTLETS 11-4DAMP LOOSE WELL OXIDES 4-100,MOIST MED. DENSE MICA 10-SOWET DENSE FINES 30-SO

VERY DENSE ETC. ‘ SO

DEFINITIONS Cc COMPRESSION INDEXLI LIQUID UMIT PL PLASTIC LIMIT B - 854 MarIon SIraeIFl, PLASTICITY INDEX TAIrinipeg, MB R2J 0K4

LIQUID LIMIT (%) C, COEFFICIENT OF UNIFORMITY Phone: (204) 233-1694Fax: (204) 235-1579

hu = UNCONFINEO COMPRESSIVE STRENGTHF \Drofung\SOIt. CLASS(RCA1IONS\SOIL CLASSIFCAi1ONS.dwg 5, UNDRAINED SHEAR STRENGTH

NG-TCNConsu,nc, LM1710

Page 24: APPENDIX A Phase II Environmental Site Assessment and

Gravel Fill (GP)medium brown, moist, medium dense,

\poorly graded, coarse grained.Clay Fill (Cl)

- dark brown, moist, firm, medium\plastic.

End of Test Hole- end of test hole at 4.6 m below grade.- no sloughing or seepage wasencountered upon completion of drilling.- test hole was backfllled with bentoniteand soil cuttings upon completion ofdrilling.

5

ho

ENG-TECHCO,JSULTNG LIMIVED

Test Hole #: THI File No.: 16-217-03

Client: City of Winnipeg Date Drilled: May 24, 201 6

Site: See Figure 2 Grade Elevation: 100.0 m

Location: 849 Ravelsten Aye, Winnipeg, MB Water Elevation: - -Engineering And TestingSolutions That Work For You Project: Phase II ESA

SUBSURFACE PROFILE SAMPLE DATA

u in VOC ConcentrationsC

.2 .2 • %LEL: iooso7—. Comments

Description E .

— 0 >.. o.0 Z F— cE .2.

-ao— > CE _1 • PPM0 o cu O 100300500700900ID Cl) LU Cl)Cl) >

Ground SurfaceConcrete (200 mm)

100.0

Si

S2 IClay (CH)

- dark brown, moist, firm, highly platic,trace silt.

5

40

5

30

10

1.0-

2.0-

3.0-

4.0-

5.0-

6.0-

S31

S7

99.0-

98.0-

97.0-

96.0-

95.0-

94.0-

I

1,1

ENG-TECH Consulting Limited —

_______ ______________________________________________

Drilled By: Maple Leaf Drilling Completion Depth: 4.6 mLogged by: TR

Drill Rig: Geoprobe Completion Elevation: 95.4 mReviewed by: Auger Size: 125 mm SS Sheet: I of I

SAMPLE TYPE SPLIT EAIREL SHELBY TUBE AUI3ER CUTTINGS SPLIT SPOON

Page 25: APPENDIX A Phase II Environmental Site Assessment and

End of Test Hole- end of test hole at 4.6 m below grade.- no sloughing or seepage wasencountered upon completion of drilling.- test hole was backfilled with bentoniteand soil cuttings upon completion ofdrilling.

PPM a

100 300 500 700 900

- .j-. -.

I

ENG-IECHCONSULTING LIMITED

Test Hole #: TH2Client: City of Winnipeg

Site: See Figure 2

Engineering And Testing Location: 849 Ravelsten Aye, Winnipeg, MB

Solutions That Work For You Project: Phase II ESA

SUBSURFACE PROFILE

File No.: 16-217-03

Date Drilled: May 24, 2016

Grade Elevation: 100.0 m

Water Elevation: - -

SAMPLE DATA

0

S>,

c-i)

0C/)

S-c

G)

Description

VOC Concentrations%LEL

10 30 50 70 90I I I I I I

U)

0

0Ci—.02

>a

S

0

Cu>

Ui

U)C0

a)C.)co

_

Ow

oza)0S

Cl)

a)0.

0.SCs

U)

Ground SurfaceConcrete (200 mm)

Comments

Gravel Fill (GP)- medium brown, moist, medium dense,

\porly graded, coarse grained.Clay Fill (Cl)

- black, moist, firm, medium plastic,\trace silt.

Clay (CH)- medium brown, moist, firm, highlyplatic, trace silt.I

0.0-

1.0-

2.0-

3.0-

4.0-

5.0-

8.0-

10

10

5

75

15

0

0

ENG-TECH Consulting Limited

Logged by:TR

Reviewed by:

Drilled By: Maple Leaf Drilling Completion Depth: 4.6 mDrill Rig: Geoprobe Completion Elevation: 95.4 mAuger Size: 125 mm SS Sheet: I of I

H SPLIT BARIEL SHELBY TUBE AUOER CUTTINQE SPLIT SPOONSAMPLE -ryps

Page 26: APPENDIX A Phase II Environmental Site Assessment and

Description- .0

>,

0.ci) 0o ci,

Ground Surface- Concrete (200 mm)

Gravel Fill (GP)- medium brown, moist, medium dense, J

\poorly graded, coarse grained.Clay Fill (Cl)

- black, moist, firm, medium plastic,\trace silt.

Clay (Cl)- medium brown, moist, firm, mediumplatic, trace silt.

ENG-TECHCONSULVNG LIMIrED

Test Hole #: TH3 File No.: 16-217-03

Client: City of Winnipeg Date Drilled: May 24, 2016

Site: See Figure 2 Grade Elevation: 100.0 m

Location: 849 Ravelsten Aye, Winnipeg, MB Water Elevation: - -Engineering And TestingSolutions That Work For You Project: Phase II ESA

SUBSURFACE PROFILE

0 VOC Concentrations. . %LEL .

10 30 50 70 90I

I I I I I Commentsa)0

0Owo— • PPM0 100 300 500 700 900> — I I I I

/

0.0-

1.0-

2.0-

3.0-

4.0-

5.0-

6.0-

-

Ij

End of Test Hole- end of test hole at 4.6 m below grade.- no sloughing or seepage wasencountered upon completion of drilling.- test hole was backfilled with bentoniteand soil cuttings upon completion ofdrilling.

ENG-TECH Consulting Limited

Logged by: TR

Reviewed by:

Drilled By: Maple Leaf Drilling Completion Depth: 4.6 mDrill Rig: Geoprobe Completion Elevation: 95.4 m

Auger Size: 125 mm ss Sheet: I of 1

SPUT BARFEL SHELBY TUBE AUQER CUTTINOS SPOONSAMPLE r,’PE

Page 27: APPENDIX A Phase II Environmental Site Assessment and

Test Hole #: TH4Client: City of Winnipeg

Site: See Figure 2

Engineering And TestingLocation: 849 Ravelsten Aye, Winnipeg, MB

Solutions That Work For You Project: Phase II ESA

ENG-TECHCONSULTING LIMITED

File No.: 16-217-03

Date Drilled: May 24, 2016

Grade Elevation: 100.0 m

Water Elevation: - -

SUBSURFACE PROFILE SAMPLE DATA

cn Co VOC ConcentrationsC

.2 0 • %LEL10 30 50 70 90

.‘ — I I I I I CommentsU) C CDescription 6 - a U)

>‘ C) C.).0C Z C CE E .2 ° 8.— >. owE.o.

- 0—’ • PPMo > EEOCL) 0 . (U (U 100300500700900C/) LU C/)U) >

Ground Surface 100.00.0- .-- -Concrete (200 mm) . I -- I

Gravel Fill (GP) Si 130 I

/

- medium brown, moist, medium dense\POOY graded, coarse grained.

.S21 15Clay Fill (Cl)1.0- _ - medium brown, moist, firm, medium 99.0-

odour at 0.8 m.\plastic,

trace silt, slight hydrocarbon / —

. Clay (Cl) S3trace silt.

-- dark brown, moist, firm, medium platic,

2.0- 98.0- —

s4 190

:i97.0- /

Il1io

96.0- —

___________

40

End of Test Hole j- end of test hole at 4.6 m below grade.

5.0- - no sloughing or seepage was 95.0-encountered upon completion of drilling. I- test hole was backfihled with bentoniteand soil cuttings upon completion ofdrilling,

6.0- — 94.0- -- —

ENG-TECH Consulting Limited —

Drilled By: Maple Leaf Drilling Completion Depth: 4.6 mLogged by: TRDrill Rig: Geoprobe Completion Elevation: 95.4 m

Reviewed by: Auger Size: 125 mm ss Sheet: I of I

SAMPLE TYPE SPUT 2ARFEL SHELBY TUBE AUQEF CLJTTIMOS 1 1 SPLIT SPOON

Page 28: APPENDIX A Phase II Environmental Site Assessment and

- slight hydrocarbon detected between0.8 m and 1.5 m.

End of Test Hole- end of test hole at 4.6 m below grade.- sloughing and seepage encouteredwithin pea gravel upon competion ofdrilling.- test hole was backfilled with bentoniteand soil cuttings upon completion ofdrilling.

ENG-TECHCONSULTThG L1MIrED

Test Hole #: TH5 File No.: 16-217-03

Client: City of Winnipeg Date Drilled: May 24, 2016

Site: See Figure 2 Grade Elevation: 100.0 m

Location: 849 Ravelsten Aye, Winnipeg, MB Water Elevation: - -Engineering And TestingSolutions That Work For You Project: Phase II ESA

SUBSURFACE PROFILE SAMPLE DATA

0 VOC ConcentrationsC C0 0 . %LEL

10 30 50 70 90I I I I I Comments•D C) C

.o Description C 0 C) U— 0 >, c. (.)c

0‘— .2 C)C)

.

> EE c. • PPMC) 0 i (C (C 0

> 100 300 500 700 9?0

Ground SurfacPea Gravel

- medium brown, moist, loose, poorlygraded, coarse grained.

100.0

Si

S2

II

Clay (Cl)- dark brown, moist, firm, medium platic.

0.0-

1.0-

2.0-

3.0-

4.0-

5.0-

6.0-

85

240

0

60

10

5

0

99.0-

98,0-

97.0-

96.0-

95.0-

94.0-

S4j

:

L..

ENG-TECH Consulting LimitedDrilled By: Maple Leaf Drilling Completion Depth: 4.6 m

Logged by: TRDrill Rig: Geoprobe Completion Elevation: 95.4 m

Reviewed by:1 Auger Size: 125 mm ss Sheet: 1 of 1

SAMPLE TYPE SPLiT BARREL SHELBY TUBE AUOSR CLrrTIr’loS SPLIT SPOON

Page 29: APPENDIX A Phase II Environmental Site Assessment and

ENG-TECHCONSULTING LIM lIED

Test Hole #: TH6 File No.: 16-217-03

Client: Cfty of Winnipeg Date Drilled: May 24, 2016

Site: See Figure 2 Grade Elevation: 100.0 m

Location: 849 Ravelsten Aye, Winnipeg, MB Water Elevation: - -Engineering And TestingSolutions That Work For You Project: Phase II ESA

o Description—.

EE

Eci =0) 0

c.o

00- Ground SurfacePea Gravel

- medium brown, moist, loose, poorly• . graded, trace sand.

‘.

.I.,-,- -

I.,3t...?jt.

..

)n

:?.

bg

;:.r’.).W

.‘

3S3

4.0—. End of Test I-lob. - end of test hole at 4.1 m below grade.

- auger refusal on suspected concrete.- sloughing was observed within pea

. gravel upon completion of drilling.5 0- - seepage was encountered within pea

gravel upon completion of drilling.- test hole was backfilled with soil

- cuttings upon completion of drilling.

6.0- —

0 VOC Concentrations. . %LEL .

• 10 30 50 70 90I

I J I Comments0)C)C0ZOuj

• PPMO 100 300 500 700 900> .— I I I I I I

j•L•-- - - -.

SUBSURFACE PROFILE

ENG-TECH Consulting Limited

Logged by: TR

Reviewed by:

Drilled By: Maple Leaf Drilling Completion Depth: 4.1 mDrill Rig: Geoprobe Completion Elevation: 95.9 mAuger Size: 125 mm ss Sheet: I of I

SPUT BAEL — SHELBV TUSE AUQER CUTTIPJOS SPLIT SPOONSAMPLE rvPE

Page 30: APPENDIX A Phase II Environmental Site Assessment and

Engineering And TestingSolutions That Work For You Project: Phase II ESA

SUBSURFACE PROFILE

Description.—.

E EE0_ =cu o

Cl,

00- Ground Surface‘ Gravel Fill (GP)\ - medium brown, moist, medium dense,\poorly graded, coarse grair

Clay Fill (Cl)- dark brown, moist, firm, medium

. plastic, trace silt.

1 0- Clay (Cl)-

dark brown, moist, firm, medium platic,. trace silt.

.

I2.0-

.

-

I4.0-

End of Test Hole- end of test hole at 3.0 m below grade.- no slough ing or seepage wasencountered upon completion of drilling.- test hole was backfihled with bentoniteand soil cuttings upon completion ofdrilling.

ENG-TECH Consulting Limited

Logged by: TR

Reviewed by:

Completion Depth: 3.0 mCompletion Elevation: 97.0 m

ENG-TECHCopjSuLrgNG LIMITED

Test Hole #: TH7Client: City of Winnipeg

Site: See Figure 2

File No.: 16-217-03

Date Drilled: May 24, 2016

Grade Elevation: 100.0 mLocation: 849 Ravelsten Aye, Winnipeg, MB Water Elevation: - -

u VOC Concentrations. * %LEL .

10 30 50 70 90I I Comments

a)C)r02Owo-’ • PPM0 100 300 500 700 900> ‘..— I I I

0

0

0

3.C

0

0

96.0-

SAMPLE

Drilled By: Maple Leaf DrillingDrill Rig: GeoprobeAuger Size: 125 mm SS Sheet: 1 of I

fl SPLiT 8AFREL SHELSV TUBE AUOE CLJTTINOS SPLIT SPOON

Page 31: APPENDIX A Phase II Environmental Site Assessment and

ENG-1ECHCONSULTING LIMITED

Test Hole #: TH8 File No.: 16-217-03

Client: City of Winnipeg Date Drilled: May 24, 2016

Site: See Figure 2 Grade Elevation: 100.0 m

Location: 849 Ravelsten Ave. Winnipeg, MB Water Elevation: - -Engineering And TestingSolutions That Work For You Project: Phase II ESA

SUBSURFACE PROFILE SAMPLE DATA

in in VOC ConcentrationsC C0 0 a %LEL a

10 30 50 70 90I I I 1 I Comments0) C

Description E o- w w.— 0 >.c Z I— C CE o

.C

-= > EE OE O • PPM a0) 0 Q

> 100300500700900

Ground Surface

End of Test Hole- end of test hole at 3.0 m below grade.- no sloughing or seepage wasencountered upon completion of drilling.- test hole was backtilled with bentoniteand soil cuttings upon completion ofdrilling.

100.0

Si

S2

S3

S4

S5

II

I

I

25

0

0

0

0

ENG-TECH Consulting Limited —

Drilled By: Maple Leaf Drilling Completion Depth: 3.0 mLogged by:TR

Drill Rig: Geoprobe Completion Elevation: 97.0 mReviewed by: (A Auger Size: 125 mm SS Sheet: 1 of I

SAMPLE TYPE fl SPLiT BARREL SHELBY TL.J6E AUOER CUTTINOS SPLIT SPOON

Gravel Fill (GP)- medium brown, moist, medium dense,

\poorly graded, coarse grained.Clay Fill (Cl)

- dark brown, moist, firm, mediumplastic, trace silt.

Clay (Cl)- dark brown, moist, firm, medium platic,trace silt.

0.0

1.0-

2.0-

3.0-

4.0-

99.0-

98,0-

97.0-

96.0-

Page 32: APPENDIX A Phase II Environmental Site Assessment and

CaNLr:LM Ito

Engineering And TestIngSolutions That Work For You

- Description—.

EE

=‘) 0Q Cl)

uO- GroundSu. Clay Fill (Cl)

- dark brown, moist, firm, mediumplastic, trace silt.

1.0-

- Clay (Cl)- dark brown, moist, firm, medium platic,

- trace silt.

I2.0- -

..IEnd of Test Hole

- end of test hole at 3.0 m below grade.- no sloughing or seepage wasencountered upon completion of drilling.- test hole was backflhled with bentoniteand soil cuttings upon completion ofdrilling.

U) VOC Concentrations. . %LEL .• 10 30 50 70 90

I I I I Comments5)0

0 .jowo—’ • PPM0 100 300 500 700 900> ‘— I I I I

Test Hole #: TH9Client: City of Winnipeg

Site: See Figure 2

Location: 849 Ravelsten Aye, Winnipeg, MB

Project: Phase II ESA

SUBSURFACE PROFILE

File No.: 16-217-03

Date Drilled: May 24, 2016

Grade Elevation: 100.0 m

Water Elevation: - -

6

0

0

03...

4.0- 96.0

ENG-TECH Consulting LimitedDrilled By: Maple Leaf Drilling Completion Depth: 3.0 m

Logged by: TRDrill Rig: Geoprobe Completion Elevation: 97.0 m

Reviewed by: Auger Size: 125 mm ss Sheet: I of I

SAM PLE TYPE H SPLiT BASL SHELBY TUBE AIJOER CUTTINGS SPLIT SPO ON

Page 33: APPENDIX A Phase II Environmental Site Assessment and

APPENDIX B

Site Photographs (4)

Page 34: APPENDIX A Phase II Environmental Site Assessment and

PHOTOGRAPH #1: Site, facing southeast showing the drilling of THI nearthe abandoned AST’s on 849 Ravelston Avenue. In the backgroundCommercial Building C of 1500 Plessis Road to the southeast.

PHOTOGRAPH #2: Site, facing southwest showing the drilling of TH2 nearthe northwest of the existing AST’s tank pad and Pump Island. In thebackground, the commercial and residential properties and RavelstonAvenue to the southwest.

NG-TECHC,,Nbur,N(, LIm,ri,

Page 35: APPENDIX A Phase II Environmental Site Assessment and

PFIOTOGRAPH #3: Site, facing northeast showing the existing AST’slocation on 849 Ravelston Avenue. In the background, the former UST andPump Island and the Northern portion of 1500 Plessis Road can be seen.

PHOTOGRAPH #4: Site, facing east showing the location of the former USTlocation near the northeast corner of the 849 Ravelston Avenue. In thebackground the northern portion of 1500 Plessis Road can be seen.

ENG- TECH4 (N%ULTING

Page 36: APPENDIX A Phase II Environmental Site Assessment and

APPENDIX C

Analytical Test Results (1)

Page 37: APPENDIX A Phase II Environmental Site Assessment and

ENG-TECH ConsultingATTN: TREVOR ROBERTSON#6 - 854 Marion StreetWinniDea MB R2J 0K4

Date Received: 25-MAY-16Report Date: 31-MAY-16 14:20 (MT)Version: FINAL

Client Phone: 204-233-1694

Certificate of AnalysisLab Work Order #: Li 773433Project P.O. #: NOT SUBMITTEDJob Reference: 16-217-03

C of C Numbers:Legal Site Desc:

7/1/ /---Hua WoChemistry Laboratory Manager

[ThIs report shall not be reproduced except In full without the written authorIty of the Laboratory.]

ADDRESS: 1329 Nlakwa Road East, UnIt 12. WinnIpeg, MB R2i 3T4 Canada I Phone: +1 204 255 97201 Fax: .1 204 255 9721ALS CANADA LTD Part of the ALS Group A Campbell Brothers Limited Company

Enulronmental www.alsglobal.comflIGHT SDL.UTIOflS flIGHT PARTflEfl

Page 38: APPENDIX A Phase II Environmental Site Assessment and

16-217-03 11773433 CONTD..

PAGE 2 of 6Version: FINAL

ALS ENVIRONMENTAL ANALYTICAL REPORT

SampleDetailslParameters Resu Quahfler DL Units Extracted Analyzed

Li 773433-1 THI-S2 © 2.5’Sampled By: TREVOR ROBERTSON on 24-MAY-16Matrix: SOILBTEX and F1-F4 by Tumbler Method

BTX plus Fl by GCMSBenzene <0.0050 0.0050 mg/kg 27-MAY-16 28-MAY-16 R3468373Toluerie <0.050 0.050 mg/kg 27-MAY-16 28-MAY-16 R3468373Ethyl benzene <0.015 0.015 mg/kg 27-MAY-16 28-MAY-16 j R3468373o-Xylene <0.050 0.050 mg/kg 27-MAY-16 28-MAY-16 R3468373m÷p-Xylenes <0.050 0.050 mg/kg 27-MAY-I 6 28-MAY-I 6 R3468373Fl (C6-C10) <10 10 rnglkg 27-MAY-16 28-MAY-16 R3468373Surrogate: 4-Bromofluorobenzene (SS) 101.6 70-130 27-MAY-16 28-MAY-16 i R3468373CCME Total Extractable HydrocarbonsF2 (Clo-C16) <25 25 mg/kg 27-MAY-16 28-MAY-16 R3467079F3 (C16-C34) <50 50 mg/kg 27-MAY-16 28-MAY-16 R3467079F4 (C34-C50) <50 50 mg/kg 27-MAY-16 28-MAY-16 R3467079Surrogate: 2-Bromobenzotrifluoride 92.6 60-140 % 27-MAY-16 28-MAY-16 R3457079Chrom. to baseline at nC5O YES 27-MAY-16 28-MAY-16 R3467079CCME Total HydrocarbonsF1-BTEX <10 10 mg/kg 31-MAY-16Total Hydrocarbons (C6-C50) <76 76 mg/kg 31-MAY-16Sum of Xylene Isomer ConcentrationsXylenes (Total) <0.071 0.071 mg/kg 31-MAY-16Miscellaneous ParametersMoisture 26.2 0.10 27-MAY-16 R3466541

L1773433-2 TH2 - S4 @7.5’Sampled By: TREVOR ROBERTSON en 24-MAY-16

Matrix: SOILBTEX and F1-F4 by Tumbler Method

BTX plus Fl by OCMSBenzene 0.0053 0.0050 mg/kg 27-MAY-i 6 28-MAY-i 6 R3468373Toluene <0.050 0.050 mg/kg 27-MAY-IS 28-MAY-16 R3468373Ethyl benzene <0.015 0,015 mg/kg 27-MAY-16 28-MAY-16 R3468373o-Xylene <0.050 0.050 mg/kg 27-MAY-16 28-MAY-16 R3468373m÷p-Xylenes <0.050 0.050 mg/kg 27-MAY-16 28-MAY-16 R3468373Fl (C6-C10) <10 10 mg/kg 27-MAY-16 28-MAY-16 R3468373Surrogate: 4-Bromofluorobenzene (SS) 113.6 70-130 % 27-MAY-16 28-MAY-16 R3468373CCME Total Extractable HydrocarbonsF2 (C10-C16) <25 25 mg/kg 27-MAY-16 28-MAY-16 R3467079F3 (C16-C34) <50 50 mg/kg 27-MAY-16 28-MAY-16 R3467079F4 (C34-C50) <50 50 mg/kg 27-MAY-16 28-MAY-16 R3467079Surrogate: 2-Bromobenzotrifluoride 93.0 60-140 % 27-MAY-16 28-MAY-16 R3467079Chrom. to baseline at nC5O YES 27-MAY-16 28-MAY-16 R3467079CCME Total HydrocarbonsF1-BTEX <10 10 mg/kg 31-MAY-16Total Hydrocarbons (C6-C50) <76 76 mg/kg 31-MAY-16Sum of Xylene Isomer ConcentrationsXylenes (Total) <0.071 0.071 mg/kg 31-MAY-16Miscellaneous ParametersMoisture 32.4 0.10 % 27-MAY-16 R3466541

11773433-3 TH4 -S4 @7.’Sampled By: TREVOR ROBERTSON on 24-MAY-16

Matrix: SOILBIEX and F1-F4 by Tumbler Method

L BTX plus Fl by GCMS

* Refer to Referenced Information for Qualifiers (if any) and Methodology.

Page 39: APPENDIX A Phase II Environmental Site Assessment and

16-217-03 L1773433 CONTO....

PAGE 3 of 6Version: FINAL

ALS ENVIRONMENTAL ANALYTICAL REPORT

Sample Details/Parameters

______

ResultQuaIrtier* DL Units — Etracted Analyzed Batch

L1773433-3 TH4 - S4 i7.5’Sampled By: TREVOR ROBERTSON on 24-MAY-16

Matrix: SOIL

BTX plus Fl by GCMSBenzene 00072 0.0050 mgikg 27-MAY-16 28-MAY-16 R3468373Toluene <0.050 0.050 mg/kg 27-MAY-16 28-MAY-16 R3468373Ethyl benzene <0.015 0.015 mg/kg 27-MAY-16 28-MAY-16 R3468373o-Xylene <0.050 0.050 mg/kg 27-MAY-lB 28-MAY-16 R3468373m+p-Xylenes <0.050 0.050 mg/kg 27-MAY-16 28-MAY-16 R3468373Fl (Ce-dO) <10 10 mg/kg 27-MAY-16 28-MAY-16 R3468373Surrogate: 4-Bromofluorobenzene (SS) 113.2 70-130 % 27-MAY-16 28-MAY-16 R3468373CCME Total Extractable HydrocarbonsF2 (C10-C16) <25 25 mg/kg 27-MAY-16 28-MAY-16 R3467079F3 (C16-C34) <50 50 mg/kg 27-MAY-16 28-MAY-16 R3467079F4 (C34-C50) <50 50 mg/kg 27-MAY-16 28-MAY-16 R3467079Surrogate: 2-Bromobenzotrifluorlde 93.9 60-140 % 27-MAY-16 28-MAY-16 R3467079Chrom. to baseline at nC5O YES 27-MAY-16 28-MAY-16 R3467Q79CCME Total HydrocarbonsF1-BTEX <10 10 mg/kg 31-MAY-16Total Hydrocarbons (C6-C50) <76 76 mg/kg 31-MAY-16Sum of Xylene Isomer ConcentrationsXylenes (Total) <0.071 0.071 mg/kg 31-MAY-16Miscellaneous ParametersMoisture 31.7 0.10 27-MAY-16 R3466541

LI 773433-4 TH4 - S5 @ 10,Sampled By: TREVOR ROBERTSON on 24-MAY-16

Matrix: SOILBTEX and F1-F4 by Tumbler Method

BTX plus Fl by GCMSSenzene <0.0050 0.0050 mg/kg 27-MAY-16 28-MAY-16 R3468373Toluene <0.050 0.050 mg/kg 27-MAY-16 28-MAY-16 R3468373Ethyl benzene <0.015 0.015 mg/kg 27-MAY-16 28-MAY-16 R3468373o-Xylene <0.050 0.050 mg/kg 27-MAY-16 28-MAY-16 R3488373m+p-Xylenes <0.050 0.050 mg/kg 27-MAY-16 28-MAY-16 R3468373Fl (C6-C10) <10 10 mg/kg 27-MAY-16 28-MAY-16 R3468373Surrogate: 4-Bromofluorobenzene (SS) 108.8 70-1 30 % 27-MAY-16 28-MAY-16 R3468373CCME Total Extractable HydrocarbonsF2 (CI0-C16) <25 25 mglkg 27-MAY-16 28-MAY-16 R3467079F3 (C16-C34) <50 50 mg/kg 27-MAY-16 28-MAY-16 R3467079F4 (C34-C50) <50 50 mg/kg 27-MAY-16 28-MAY-16 R3467079Surrogate: 2-Bromobenzotrifluoride 93.7 60-140 % 27-MAY-16 28-MAY-16 R3467079Chrom. to baseline at nC5O YES 27-MAY-16 28-MAY-16 R3467079CCME Total HydrocarbonsF1BTEX <10 10 mglkg 31-MAY-16Total Hydrocarbons (C6-C50) <76 76 mg/kg 31-MAY-16Sum of Xylene Isomer ConcentrationsXylenes (Total) <0.071 0.071 mg/kg 31-MAY-16Miscellaneous ParametersMoIsture 33.4 0.10 27-MAY-16 R3466541

L1773433-5 TH5 - S2 © 2.5’Sampled By: TREVOR ROBERTSON on 24-MAY-16

Matrix: SOILBTEX and F1-F4 by Tumbler Method

BTX plus Fl by GCMSBenzene <0.0050 0.0050 mg/kg 27-MAY-16 28-MAY-16 .LR3468373

* Refer to Referenced Information for Qualifiers (if any) and Methodology.

Page 40: APPENDIX A Phase II Environmental Site Assessment and

16-217-03 L1773433 CONTD....

PAGE 4 of 6Version: FINAL

ALS ENVIRONMENTAL ANALYTICAL REPORT

_____

-

- ‘Thesuit rn. u, Extrac

_____

Batch

Li 773433-5 TH5 - S2 @ 2.5Sampled By: TREVOR ROBERTSON on 24-MAY-16Matrix: SOIL

BTX plus Fl by GCMSToluene <0.050 0.050 mg/kg 27-MAY-IS 28-MAY-16 R3468373Ethyl benzene <0.015 0.015 mg/kg 27-MAY-iS 28-MAY-16 R3468373o-Xylene 0.172 0.050 mg/kg 27-MAY-16 28-MAY-16 R3468373m+p-Xylenes 0.076 0.050 mg/kg 27-MAY-16 28-MAY-16 R3468373Fl (C6-C10) 54 10 mg/kg 27-MAY-16 28-MAY-16 R3468373Surrogate: 4-Bromofluorobenzene (SS) 96.8 70-130 % 27-MAY-16 28-MAY-16 I R3468373CCME Total Extractable HydrocarbonsF2 (C10-C16) 1540 25 mg/kg 28-MAY-16 28-MAY-16 R3467079F3 (C16-C34) 843 50 mg/kg 28-MAY-16 28-MAY-16 R3467079F4 (C34-C50) 150 50 mg/kg 28-MAY-16 28-MAY-16 R3467079Surrogate: 2-Bromobenzotrlfluoride 99.2 60-140 % 28-MAY-16 28-MAY-16 R3467079Chrom. to baseline at nC5O YES 28-MAY-16 28-MAY-IS R3467079CCME Total HydrocarbonsF1-BTEX 53 10 mg/kg 31-MAY-16Total Hydrocarbons (C6-C50) 2590 76 mg/kg 31-MAY-16Sum of Xylene Isomer ConcentrationsXylenes (Total) 0.247 0.071 mg/kg 31-MAY-ISMiscellaneous ParametersMoisture 7.11 0.10 % 30-MAY-16 R3469068

Li 773433-6 TH5 - S4 @ 7.5Sampled By: TREVOR ROBERTSON on 24-MAY-16Matrix: SOILBTEX and F1-F4 by Tumbler Method

BTX plus Fl by GCMSBenzene <0.0050 0.0050 mg/kg 27-MAY-16 28-MAY-16 R3468373Toluene <0.050 0.050 mg/kg 27-MAY-16 28-MAY-16 R3468373Ethyl benzene <0.015 0.015 mglkg 27-MAY-16 28-MAY-IS R3468373o-Xylene <0.050 0.050 mg/kg 27-MAY-16 28-MAY-16 R3468373m+p-Xylenes <0.050 0.050 mg/kg 27-MAY-16 28-MAY-16 R3468373Fl (C6-C10) <10 10 mg/kg 27-MAY-16 28-MAY-16 R3468373Surrogate: 4-Bromofluorobenzene (SS) 121.9 70-1 30 % 27-MAY-16 28-MAY-16 R3468373CCME Total Extractable HydrocarbonsF2 (C10-C16) 68 25 mg/kg 28-MAY-IS 28-MAY-16 R3467079F3 (C16-C34) 75 50 mg/kg 28-MAY-16 28-MAY-16 R3467079F4 (C34-C50) <50 50 mg/kg 28-MAY-16 28-MAY-16 R3467079Surrogate: 2-Bromobenzotrifluoride 95.5 60-140 % 28-MAY-16 28-MAY-16 R3467079Chrom. to baseline at nC5O YES 28-MAY-16 28-MAY-16 R3467079CCME Total HydrocarbonsF1-BTEX <10 10 mg/kg 31-MAY-16Total Hydrocarbons (C8-C50) 143 76 mg/kg 31-MAY-16Sum of Xylene Isomer Concentrations IXylenes (Total) <0.071 0.071 mg/kg 31-MAY-16Miscellaneous Parameters IMoisture 34.6 0.10 30-MAY-16 R3469068

Li 773433-7 TH7 - S3 @ 5Sampled By: TREVOR ROBERTSON on 24-MAY-16Matrix: SOILBTEX and F1-F4 by Tumbler Method

BTX plus Fl by GCMSBenzene <0.0050 0.0050 mglkg 27-MAY-16 28-MAY-16 R3468373L Tokene

____-______ _____

<0:050

____

— 0050 -. mg/kg 27-MAY-16 28-MAY-1j468373

* Refer to Referenced Information for Qualifiers (if any) and Methodology.

Page 41: APPENDIX A Phase II Environmental Site Assessment and

16-217-03 L1773433 CONTD....PAGE 5 of 6Version: FINAL

ALS ENVIRONMENTAL ANALYTICAL REPORT

_________________‘1.__Resflt

Quahtier* DL Units Extracted Analyzed Batch

L1773433-7 TH7 - S3 © 5’ rSampled By. TREVOR ROBERTSON on 24-MAY-16

Matrb<. SOIL

BTX plus Fl by GCMSEthyl berizene <0.015 0.015 mg/kg 27-MAY-16 28-MAY-16 R3468373o-Xylene <0.050 0.050 mg/kg 27-MAY-16 28-MAY-16 R3468373m+p-Xylenes <0.050 0.050 mg/kg 27-MAY-16 28-MAY-16 R3468373Fl (C6-C10) <10 10 mg/kg 27-MAY-16 28-MAY-16 R3468373Surrogate: 4-Bromofluorobenzene (SS) 107.2 70-130 % 27-MAY-16 28-MAY-16 R3468373CCME Total Extractable Hydrocarbons IF2 (C10-C16) <25 25 mg/kg 28-MAY-16 28-MAY-16 R3467079F3 (C16-C34) <50 50 mg/kg 28-MAY-16 28-MAY-16 R3467079F4 (C34-C50) <50 50 mg/kg 28-MAY-16 28-MAY-16 R3467079Surrogate: 2-Bromobenzotrifluorlde 92.0 60-140 28-MAY-16 28-MAY-16 R3467079Chrom. to baseline at nC5O YES 28-MAY-16 28-MAY-16 R3467079CCME Total HydrocarbonsF1-BTEX <10 10 mg/kg 31-MAY-16Total Hydrocarbons (C6-C50) <76 76 mg/kg 31-MAY-ISSum of Xylene Isomer ConcentrationsXylenes (Total) <0.071 0.071 mg/kg 31-MAY-16Miscellaneous ParametersMoisture 29.2 0.10 30-MAY-16 R3469068

L1773433-8 TH9 - Si @ 1’Sampled By. TREVOR ROBERTSON on 24-MAY-16

Matrix: SOILBTEX and F1-F4 by Tumbler Method

BTX plus Fl by GCMSBenzene <0.0050 o.ooso mg/kg 27-MAY-16 28-MAY-16 R3468373Toluene <0.050 0.050 mg/kg 27-MAY-16 28-MAY-16 R3468373Ethyl benzene <0.015 0.015 mg/kg 27-MAY-16 28-MAY-16 R3468373o-Xylene <0.050 0.050 mg/kg 27-MAY-16 28-MAY-16 R3468373m+p-Xylenes <0 050 0,050 mg/kg 27-MAY-16 28-MAY-16 R3468373Fl (CS-dO) <10 10 mg/kg 27-MAY-16 28-MAY-16 R3468373Surrogate: 4-Bromofluoroberizene (SS) 93.4 70-1 30 % 27-MAY-16 28-MAY-16 R3468373CCME Total Extractable HydrocarbonsF2 (C10-C16) <25 25 mg/kg 28-MAY-16 28-MAY-16 R3467079F3 (C16-C34) 94 50 mg/kg 28-MAY-16 28-MAY-16 R3467079F4 (C34-C50) 90 50 mg/kg 28-MAY-16 28-MAY-16 R3467079Surrogate: 2-Bromobenzotrifluonde 95.0 60-140 % 28-MAY-16 28-MAY-16 R3467079Chrom. to baseline at nC5O YES 28-MAY-16 28-MAY-16 R3467079CCME Total HydrocarbonsF1-BTEX <10 10 mg/kg 31-MAY-16Total Hydrocarbons (C6-C50) 184 76 mg/kg 31-MAY-16Sum of Xylene Isomer ConcentrationsXylenes (Total) <0.071 0.071 mg/kg 31-MAY-16Miscellaneous ParametersMoisture 11.1 0.10 30-MAY-16 R3469068

* Refer to Referenced Information for Qualifiers (if any) and Methodology.

Page 42: APPENDIX A Phase II Environmental Site Assessment and

16-217-03 L1773433 CONTD,...

PAGE 6 of 6

Reference Information Version FINAL

Test Method References:

ALS Test Code Matrix Test Description Method Reference**

BTEXS+F1-HSMS-WP Soil BTX plus Fl by GCMS EPA 826CC

The soil methanol extract is added to water and reagents, then heated in a sealed vial to equilibrium. The headspace from the vial Is transferred into agas chromatograph. Target compound concentrations are measured using mass spectrometry detection.

F1-F4-CALC-WP Soil CCME Total Hydrocarbons CCME CWS-PHC, Pub #1310, Dec 2001-SAnalytical methods used for analysis of CCME Petroleum Hydrocarbons have been validated and comply with the Reference Method for the CWS PHC.

In cases where results for both F4 and F4G are reported, the greater of the two results must be used in any application of the CWS PHC guidelines andthe gravimetric heavy hydrocarbons cannot be added to the C6 to C50 hydrocarbons.In samples where BTEX and Fl were analyzed F1-BTEX represents a value where the sum of Benzene, Toluene, Ethylbenzene and total Xylenes hasbeen subtracted from Fl.

In samples where PAHs, F2 and F3 were analyzed, F2-Naphth represents the result where Naphthalene has been subtracted from F2. F3-PAHrepresents a result where the sum of Benzo(a)anthracene, Benzo(a)pyrene, Benzo(b)fluoranthene, Benzo(k)fluoranthene, Dibenzo(a,h)anthracene,Fluoranthene, lndeno(1 ,2,3-cd)pyrene, Phenanthrene, and Pyrene has been subtracted from F3.

Unless otherwise qualified, the following quality control criteria have been met for the Fl hydrocarbon range:1. All extraction and analysis holding times were met2. Instrument performance showing response factors for C6 and Cl 0 within 30% of the response factor for toluerie.3. Linearity of gasoline response within 15% throughout the calibration range.

Unless otherwise qualified, the following quality control criteria have been met for the F2-F4 hydrocarbon ranges:1. All extraction and analysis holding times were met.2. Instrument performance showing ClO, C16 and C34 response factors within 10% oftheiraverage.3. Instrument performance showing the C50 response factor within 30% of the average of the dO, C16 and C34 response factors.4. Linearity of diesel or motor oil response within 15% throughout the calibration range.

F2-F4-TMB-FID-WP Soil CCME Total Extractable Hydrocarbons CCME CWS-PHC, Pub #1310, Dec 2001A soil or sediment sample is extracted with 1:1 hexanelacetone In a tumbler, followed by a silica gel clean up to facilitate separation of the hydrocarbonsfrom other polar extractions. An aliquat of the solvent Is analyzed using a gas chromatograph equipped with a flame -ionization detector.MOISTURE-WP Soil % Moisture CCME CWS-PHC, Pub #1310, Dec 2001Moisture content in solid matrices is determined gravimetrically after drying to constant weight at 105cC.

XYLENES-SUM-CALC- Soil Sum of Xylene Isomer Concentrations CALCULATED RESULTwP

Total xylenes represents the sum of o-xylene and m&p-xylene.

**ALS test methods may incorporate modifications from specified reference methods to improve performance.

The last two letters of the above lest code(s) indicate the laboratory that performed analytical analysis for that test. Refer to the list below:

Laboratory Definition Code Laboratory Location

_________ _____________________________________

WP ALS ENVIRONMENTAL - WINNIPEG, MANITOBA, CANADA

Chain of Custody Numbers:

GLOSSARY OF REPORT TERMSSurrogates are compounds that are similar in behaviour to target analyte(s), but that do not normally occur in environmental samp/es. Forapplicable tests, surrogates are added to samples prior to analysis as a check on recovery. In reports that display the D. 1. column, laboratoryobjectives for surrogates are fisted there.mg/kg - milligrams per kilogram based on dry weight of samplemg/kg wwt - milligrams per kilogram based on wet weight of samplemg/kg Iwt - milligrams per kilogram based on lipid-adjusted weightmgJL - unit of concentration based on volume, parts per milion.< -Less than.DL. - The reporting ilmit.N/A - Result not available. Refer to qualifier code and definition for explanation.

Test results reported relate only to the samples as received by the laboratory.UNLESS OTHERWISE STATED, ALL SAMPLES WERE RECEIVED IN ACCEPTABLE CONDON.Analytical results in unsigned test reports with the DRAFT watermark are subject to change, pending final QC review.

Page 43: APPENDIX A Phase II Environmental Site Assessment and

ManflobaSustainable DevelopmentEnvironmental Stewardship DivisionEnvironmental Approvals Branch1007 Century Street, Winnipeg, Manitoba R3H 0W4T 204-945-8231 F 204-948-2338www.manitoba.ca

July 27, 2016

Jennefer LarsenProject Coordinator, Winnipeg Fleet Management Agency770 Ross AvenueWinnipeg, MB R3E 1C6

Dear Ms. Larsen:

Re: Proposed Remediation Plan for 849 Ravelston Avenue, Winnipeg, Manitoba:Approval under The Contaminated Sites Remediation Act

This will acknowledge receipt of the Remediation Plan for the above noted property (the site)dated July 13, 2016 and prepared by Eng-Tech Consulting Limited.

The Rernediation Plan states:

• The contaminated soil on the site is related to the former underground storage tanks, and theimpacted soil is estimated at 1000 m3.

• Site rernediation via excavation of the contaminated soil above the Canadian Council Ministers ofthe Environment (CCME) criteria for residential land use is being proposed and is a viableremedial option since the land may be used for residential purposes. The excavation would belimited to the area of the former underground and above ground storage tank nest and will extenduntil all contaminated soil above the CCME criteria for residential land use is removed.

• The contaminated soil will be hauled to either the Prairie Green Soil Facility in the RM of Rosseror Brady Road Landfill.

• The soil below the CCME criteria will be temporarily stockpiled on site and placed back into theexcavation upon removal of the contaminated soil and confirmatory testing of the soil along theexcavation walls and base.

This letter constitutes written authorization as specified under The Contaminated SitesRemediation Act, C.C.S.M, c. C205, s. 17.1 (1) for the City of Winnipeg to proceed with the remediationof the site as described in the Remediation Plan. Any change to the Remediation Plan must be approvedby the undersigned prior to initiating the change.

The site remains designated as an impacted site pursuant to The Contaminated Sites RemediationAct, C.C.S.M, c. C205 and will remain on the impacted site registry until such time the contaminants arenot at a level which may pose a threat to human health or safety or to the environment.

It is requested that a Summary Report documenting the remediation is submitted to this office forreview at the completion of the Remediation Plan.

Page 44: APPENDIX A Phase II Environmental Site Assessment and

Approval of Proposed Remediation Plan849 Ravelston Avenue - WinnipegJuly 27, 2016Page 2

It should be noted that the position of Manitoba Sustainable Development as stated in this letter isbased on the information provided to this office by Eng-Tech Consulting Limited and relates only to thematters within the scope of the investigation conducted by Eng-Tech Consulting Limited.

If you have any questions regarding this letter, please contact Warren Rospad, ContaminatedSites Program Specialist at 204-330-2685 or warren.rospad(ögov.mb.ca. Please note that electronicsubmissions are preferred for documents and correspondence.

Sincerely,

Tracey BraunDirector

c. File: 50723Trevor Robertson (Eng-Tech Consulting Limited)Environmental Compliance and Enforcement