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APPENDIX

G FISH AND FISH HABITAT EXISTING CONDITIONS AND IMPACT ASSESSMENT REPORT

MINISTRY OF TRANSPORTATION – EASTERN REGION

FISH AND FISH HABITAT EXISTING CONDITIONS AND

IMPACT ASSESSMENT REPORT HIGHWAY 7 AND HIGHWAY 15 INTERSECTION IMPROVEMENTS

GWP 4084-16-00

JUNE 26, 2020

FISH AND FISH HABITAT EXISTING CONDITIONS AND IMPACT ASSESSMENT REPORT HIGHWAY 7 AND HIGHWAY 15 INTERSECTION IMPROVEMENTS

MINISTRY OF TRANSPORTATION – EASTERN REGION

FINAL

PROJECT NO.: 17M-01712-04

GWP 4084-16-00

DATE: JUNE 26, 2020

WSP.COM

FISH AND FISH HABITAT EXISTING CONDITIONS AND IMPACT ASSESSMENT REPORT Project No. 17M-01712-04 MINISTRY OF TRANSPORTATION – EASTERN REGION

WSPJune 2020

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R E V I S I O N H I S T O R Y

ISSUE/REVISION FIRST ISSUE REVISION 1 REVISION 2 REVISION 3

Remarks Draft Report Final

Date May 5, 2020 June 26, 2020

Prepared by Robin LeCraw Robin LeCraw

Signature

Prepared by Jenny Enoae Jenny Enoae

Signature

Authorised by Meghan MacMillan Meghan MacMillan

Signature

Project number 17M-01712-04 17M-01712-04

Report number

File reference


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S I G N A T U R E S

PREPARED BY

Robin LeCraw, Ph.D.

Project Ecologist - Fisheries

Jenny Enoae, M.Sc.

Project Ecologist - Fisheries

REVIEWED BY

Meghan MacMillan, MCIP, RPP

Senior Planner

WSP Canada Group Limited (WSP) prepared this report solely for the use of the intended recipient, MINISTRY OF TRANSPORTATION – EASTERN REGION, in accordance with the professional services agreement. The intended recipient is solely responsible for the disclosure of any information contained in this report. The content and opinions contained in the present report are based on the observations and/or information available to Ministry of Transportation – Eastern Region at the time of preparation. If a third party makes use of, relies on, or makes decisions in accordance with this report, said third party is solely responsible for such use, reliance or decisions. WSP does not accept responsibility for damages, if any, suffered by any third party as a result of decisions made or actions taken by said third party based on this report. This limitations statement is considered an integral part of this report.

The original of this digital file will be conserved by WSP for a period of not less than 10 years. As the digital file transmitted to the intended recipient is no longer under the control of WSP, its integrity cannot be assured. As such, WSP does not guarantee any modifications made to this digital file subsequent to its transmission to the intended recipient.


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C O N T R I B U T O R S

CLIENT

Ministry of Transportation,

Eastern Region

Peter Fraser, P.Eng. – Senior Project Engineer

Sharon Westendrop – Senior Environmental Planner

WSP

Project Ecologist – Fisheries Robin LeCraw

Project Ecologist – Fisheries Jenny Enoae

Environmental Planner Meghan MacMillan, MCIP, RPP

Assistant Environmental Planner Jade Garland

Project Manager Rhonda George-Heibert, P.Eng.


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1 INTRODUCTION ............................................. 3

2 APPROACH .................................................... 6

2.1 Background Data ........................................................... 6

2.2 Methods .......................................................................... 6

2.2.1 Habitat ...................................................................................................... 7

2.2.2 Fish / Mussel Sampling ........................................................................... 7

3 EXISTING CONDITIONS - AQUATIC

HABITAT AND FISH COMMUNITY ................ 8

3.1 Southern Unnamed Tributary of Lavallee Creek

(Station 1) ....................................................................... 8

3.1.1 Aquatic Habitat ........................................................................................ 8

3.1.2 Fish Community .................................................................................... 10

3.2 Northern Unnamed Tributary of Lavallee Creek

(Station 2) ..................................................................... 11

3.2.1 Aquatic Habitat ...................................................................................... 11

3.2.2 Fish Community .................................................................................... 13

3.3 Northern Unnamed Tributary of Lavallee Creek

(Station 3) ..................................................................... 14

3.3.1 Aquatic Habitat ...................................................................................... 14

3.3.2 Fish Community .................................................................................... 15


(Station 4) ..................................................................... 16

3.4.1 Aquatic Habitat ...................................................................................... 16

3.4.2 Fish Community .................................................................................... 17


(Station 5) ..................................................................... 18

3.5.1 Aquatic Habitat ...................................................................................... 18

3.5.1 Fish Community .................................................................................... 20

4 SPECIES AT RISK ........................................ 21

5 HABITAT SUMMARY TABLE........................ 22

6 PROPOSED WORKS AND POTENTIAL

IMPACTS ...................................................... 26

6.1 Preliminary Proposed Works ..................................... 26

6.2 Potential Impacts ......................................................... 27

7 MITIGATION MEASURES ............................ 28

7.1 Construction-related Mitigation Measures ............... 28


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8 PRELIMINARY ASSESSMENT OF HADD ... 31

8.1 Pathway of Effects ...................................................... 31

9 SUMMARY AND CONCLUSIONS ................ 32

10 BIBLIOGRAPHY ............................................ 33

TABLES

TABLE 1: 10.1 LOCATION OF WORK ......................................... 4

TABLE 2: FISH COMMUNITY – SOUTHERN UNNAMED TRIBUTARY OF LAVALLEE CREEK (STATION 1) ...................................................................... 10

TABLE 3: FISH COMMUNITY – NORTHERN UNNAMED TRIBUTARY OF LAVALLEE CREEK (STATION 2) ...................................................................... 13

TABLE 4: FISH COMMUNITY – NORTHERN UNNAMED TRIBUTARY OF LAVALLEE CREEK (STATION 3) ...................................................................... 15



TABLE 7 : EXISTING FISH AND FISH HABITAT CONDITIONS TABLE.............................................................. 23

FIGURES

FIGURE 1: KEY SITE PLAN - HIGHWAY 7 & 15 STUDY AREA . 5

FIGURE 2: CONSTRAINT MAPPING ........................................... 9

APPENDICES

A CONSTRAINTS MAP

B AGENCY CORRESPONDENCE

C REPRESENTATIVE PHOTOGRAPHS

D HABITAT DATA SHEETS AND FIELD NOTES

E PATHWAYS OF EFFECTS


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1 INTRODUCTION The Ministry of Transportation (MTO) has retained WSP Canada Group Limited (WSP) to undertake a Preliminary Design and MTO Class Environmental Assessment (EA) Study for improvements to the intersection of Highway 7 and Highway 15 in the Town of Carleton Place, Ontario (GWP 4084-16-00). The study area includes Franktown Road / Highway 15 from Alexander Street approximately 430 m north of Highway 7 to approximately 850 m south of Highway 7, and Highway 7 from the former CPR/multi-use trail corridor approximately 360 m west of Highway 15 to approximately 550 m east of McNeely Avenue (Figure 1 below).

At this location, Highway 7 conveys four lanes of traffic in a east-west direction and Highway 15 conveys two lanes of traffic in a north-south direction. The study has identified intersection improvements to accommodate interim and long-term transportation needs, while ensuring safe and efficient traffic operations to support ongoing and proposed development of adjacent lands. In parallel with the Preliminary Design and Class EA Study, MTO and WSP are working with the Town of Carleton Place to develop a Secondary Plan under the Planning Act for the lands surrounding the intersection.

This report documents the fish and fish habitat component of the project within the study area. Specifically, this report describes the existing fish and fish habitat conditions for the two (2) Unnamed Tributaries of Lavallee Creek (five (5) watercourse crossings stations) as identified on Ontario base mapping and aerial imagery, identifies the potential impacts of the proposed works for the preferred alternative, and recommends mitigation measures to address the potential impacts, all in support of a determination of the potential to cause death to fish and/or the Harmful Alteration, Disruption or Destruction (HADD) to fish habitat.

The first Unnamed Tributary of Lavallee Creek will be referred to hereafter as the southern tributary. The southern Tributary of Lavallee Creek appears to originate approximately 250 m west of Highway 15 and approximately 20 m south of Highway 7 as surface run-off and drainage outflow from an unevaluated Cattail marsh wetland. This tributary of Lavallee Creek conveys flows southeast from the cattail wetland, under Highway 15 and east through deciduous woodlands and treed wetland habitats to McNeely Avenue before meandering northeast and converging with the northern Unnamed Tributary of Lavallee Creek, approximately 800 m northeast of the study area. From there the Unnamed Tributary of Lavallee Creek flows north, eventually outletting into the Mississippi River, approximately 1.8 km downstream of the study area.

The second Unnamed Tributary to Lavallee Creek will be referred to hereafter as the northern tributary. This tributary appears to originate at a storm sewer outlet pipe located on the east side of Franktown Road, approximately 120 m north of Highway 7. This tributary of Lavallee Creek conveys flows east through a large unevaluated Cattail marsh wetland and through cultural meadows to McNeely Avenue where additional storm water flows enter the watercourse through two concrete pipes. From McNeely Avenue the tributary flows east beyond the study area before converging with the southern Tributary of Lavallee Creek, and eventually outletting into the Mississippi River, approximately 1.8 km downstream.

Table 1 below show the location of the assessed watercourse crossings, as well as the location of the proposed works within the study area. Constraint mapping has also been completed for the study area and is shown in Figure 2 and is included in Appendix A.


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Table 1: 10.1 Location of Work

WATERCOURSE ID HIGHWAY TOWNSHIP / MUNICIPALITY

LOCATION OF WATERCOURSE

(GPS COORDINATES)

Unnamed Tributary of Lavallee Creek

(South Tributary) (station 1)

Highway 7 Town of Carleton Place 18T 411251E

4997634N


(North Tributary) (station 2)

Franktown Road Town of Carleton Place 18T 411321E

4997889N


(North Tributary) (station 3)

McNeely Ave Town of Carleton Place 18T 411734E

4998459N



Highway 15 Town of Carleton Place 18T 411723E

4997378N



McNeely Ave Town of Carleton Place 18T 412137E

4997990N

This assessment has been conducted in accordance with the requirements of the MTO/DFO/OMNR Fisheries Protocol for Protecting Fish and Fish Habitat on Provincial Highway Undertakings – Version 3 (2016) and the associated guidance provided in MTO’s (2013) Environmental Guide for Fish and Fish Habitat (Fish Guide).

As of August 28, 2019 new fish and fish habitat protection provisions of the Fisheries Act are in force, following passage of Bill C-68. The impact assessment and determination of HADD and requirements for the Department of Fisheries and Oceans (DFO) review have been conducted in accordance with the new provisions.


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Figure 1: Key Site Plan - Highway 7 & 15 Study Area


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2 APPROACH This section of the report presents the approach taken to collect background and field information to characterize the existing fish and fish habitat conditions in the upstream, MTO right-of-way (ROW), and downstream reaches of the five (5) watercourse crossings assessed within the study area.

The background and field investigations were carried out by WSP Ecologists in August 2018 under an agreement with MTO and permission from private land owners. The information provided in this section was collected during field investigations and supplemented with any additional information gathered through a review of publicly available background information, as well as agency consultation with the Ministry of Natural Resources and Forestry (MNRF) and Mississippi Valley Conservation Authority (MVCA).

2.1 BACKGROUND DATA

Background information was collected from the following sources:

− Topographic maps

− Aerial photography

− Natural Resources Value Information System (NRVIS) database

− Natural Heritage Information Centre (NHIC) database

− DFO Aquatic Species at Risk (SAR) Mapping

− MVCA correspondence

− MNRF – Kemptville correspondence

The MVCA provided a response to the information request submitted on May 2, 2018 and provided a fish species list for Lavallee Creek as well as an in-water works timing window (no in-water work between March 15 – June 30).

WSP contacted the MNRF – Kemptville District office in May of 2018 requesting any available information related to fish and fish habitat, sensitive or specialized habitat functions, or known / potential for use of the area by aquatic SAR. The MNRF was also asked to provide the thermal classification and the permissible in-water construction timing window. MNRF Kemptville provided a response to the information request on October 30, 2018 that included a SAR list of sensitive species occurring within or adjacent to the study area as well as confirmation that no natural heritage features (Provincially Significant Wetlands or Areas of Natural and Scientific Interest, etc.) are present within the study area. No thermal regime, in-water works window, or fish community list was provided in the response.

DFO SAR Distribution Mapping was reviewed on February 7, 2020 and did not identify any SAR or critical habitat within the study area. All agency correspondence has been included in Appendix B.

2.2 METHODS

Field surveys were conducted by WSP Ecologists August 23-24, 2018 to document the existing conditions of the fish and fish habitat within the study area. The field investigations were conducted in accordance with “Section 4 – Field Investigations” of MTO’s Fish Guide.

The site was mapped on a 1:6000 scale air photo base and presented on a mapping plate in Appendix A. Photographs were taken for the assessed reaches, with representative photographs provided in Appendix C, and additional photographs on file at WSP.


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2.2.1 HABITAT

The collection of fish habitat information during the field survey encompassed the following parameters:

− Stream channel dimensions, general gradient and profile

− Bank / shoreline character (e.g., height and erosion)

− Flow characteristics, including evidence of groundwater discharge

− Morphology and substrates

− In-water cover opportunities (e.g., woody debris, undercut banks, boulders, vegetation)

− Riparian vegetation

− Presence of physical barriers to fish movement

− Presence of potential critical or specialized habitat areas including potential spawning areas, good nursery cover, holding habitat (e.g., deeper refuge pools)

− Disturbances and past habitat alterations (e.g., channelization, potential pollutant point sources)

− Potential habitat enhancement opportunities.

All habitat data sheets, mapping and other field notes have been included in Appendix D.

2.2.2 FISH / MUSSEL SAMPLING

WSP ecology staff completed fish community sampling under the License to Collect Fish for Scientific Purpose (License No. 1089699) issued by the MNRF to assess the fish communities within the study area.

Fish community sampling was completed on August 23-24, 2018 by minnow trapping within the various habitat types at each station on both tributaries, where water depths permitted. All fish community sampling results have been provided in Tables 2 through 7 in Section 3 below. WSP also collected general water quality parameters including dissolved oxygen, water pH, conductivity, turbidity, and water temperature to support the fish community sampling results. General water quality parameters measurements can be found with the field notes in Appendix D.


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3 EXISTING CONDITIONS - AQUATIC

HABITAT AND FISH COMMUNITY This section of the report provides an overview of the existing fish and fish habitat conditions of the watercourses located within the study area as collected by WSP in 2018. For each watercourse, the aquatic habitat is described in three reaches; upstream of the crossing (50 m), within the ROW, and downstream of the crossing (200 m) and is followed by a description of the fish community present. Each watercourse is described in detail below with the field data sheets included in Appendix D.

3.1 SOUTHERN UNNAMED TRIBUTARY OF LAVALLEE CREEK

(STATION 1)

3.1.1 AQUATIC HABITAT

The assessed reach of the southern Unnamed Tributary of Lavallee Creek at Station 1 conveys intermittent to permanent surficial flow from the north and east into the study area through open ditches dominated by Common Cattail (Typha latifolia). The flows are conveyed south through a 1 m diameter Corrugated Steel Pipe (CSP) culvert under Highway 7 and into a large shallow Cattail marsh occurring immediately south of the Highway ROW. This culvert does not have any works proposed associated with the intersection improvements.

Upstream Reach

The upstream reach of the Unnamed Tributary of Lavallee Creek flows from the northwest, west, and east of the Highway 7 culvert as surficial drainage associated with the Ottawa Valley Rail Trail (OVR Trail) and north side of Highway 7, respectively. Flow is conveyed in a distinct channel with defined banks through a dense Cattail and shrub-colonized ditch into the assessed reach. The upstream reach was composed of entirely of flat habitat. The mean wetted width in the flat habitat was approximately 3.4 m with a mean wetted depth of 0.02 m. The mean bankfull width within the flat was approximately 5 m with a mean bankfull depth of approximately 1.6 m. The substrate within the upstream reach was composed of muck (45%) and detritus (45%) with occasional cobbles (10%). Both banks were well vegetated and showed no evidence of erosion or bank undercutting. In-water cover was moderate and consisted of cobbles and dense in-water vegetation consisting of Common Cattails. Riparian trees and shrubs consisting of Common Buckthorn (Rhamnus cathartica) and White Ash (Fraxinus americana) were sparse along the banks and provided some canopy cover and shading of the watercourse (50%). No groundwater seeps were observed within this reach during the time of assessment. Fish were not observed and sampling was not undertaken within the upstream reach due to lack of water depth for sampling. Temporary / seasonal barriers to fish movement were observed during the time of assessment and included dense Cattail vegetation and fluctuating water levels.

Within the ROW

As the flows enters the ROW, flow is conveyed east and west within the north ROW ditch of Highway 7 toward the culvert inlet. Flows are conveyed within distinct channels with defined banks as riffle habitat towards the culvert inlet before flowing south under Highway 7 within the culvert. Within the ROW reach both flat and riffle habitat was observed. The riffle habitat occurred only on the upstream side of the culvert, around the culvert inlet and had a mean wetted width of approximately 0.2 m with a mean wetted depth of approximately 2 cm. The flat habitat occurred along the north ditch of Highway 7. The upstream ROW flats had a mean wetted width of approximately 0.2 m with a mean wetted depth of 2 cm. The downstream ROW flats had a mean wetted width of approximately 2.1 m with a mean wetted depth of 0.18 m. The overall

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126 DON HILLOCK DRIVE, UNIT 2AURORA, ONTARIO CANADA L4G 0G9

TEL.: 905-750-3080 | FAX: 905-727-0463 | WWW.WSP.COM

FIGURE NO:

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17M-01712-04 470 SEPTEMBER 2018

DISCIPLINE:

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HIGHWAY 7 & 15CARLETON PLACE, ONTARIO

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DRAWN BY:

T.P.

Data Source: Ministry of Natural Resources, Ontario Base Mapping, October 2016.

100 0 10050 Metres

CLIENT:

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CHECKED BY:

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mean bankfull width within the upstream ROW was approximately 3.1 m with a mean bankfull depth of approximately 1.6 m. At the downstream side of the culvert the channel becomes indistinct and flows diffusely into the large cattail marsh feature occurring at the culvert outlet. At the ROW limit the cattail marsh measured approximately 225 m wide and approximately 150 m long. Substrates within the ROW were composed of both coarse and fine materials; primarily sand (35%), silts (35%), muck (25%), and gravel (5%). The banks within the ROW were stable with dense grass and forb vegetation. No signs of erosion were observed along the banks within the ROW, however a recreational trail is present at the culvert outlet where wheel tracks have caused rutting and pooling water at the culvert outlet. In-water and overhanging cover was sparse consisting of woody debris (e.g., downed trees), cobbles and emergent in-water vegetation, Common Cattail. Riparian trees and shrubs were sparse and provided some canopy cover and shading of the watercourse (40%). The fish community within this reach was not sampled due to insufficient water depths. Temporary / seasonal barriers to fish movement were observed within the ROW reach and included fluctuating water levels as well as vegetation occurring at the culvert outlet. Fish were visually observed within the wheel track pool occurring at the culvert outlet.

Downstream Reach

The Unnamed Tributary of Lavallee Creek exits the ROW into the downstream reach as an indistinct channel with undefined banks occurring within a large Common Cattail marsh. Flows are conveyed south for approximately 560 m through marsh and swamp habitat before converging with another Unnamed Tributary of the Lavallee Creek and meandering northeast towards Highway 15. No observable channel was present within the cattail marsh. The cattail marsh measured approximately 225 m wide and approximately 150 m long at the ROW limit. The substrate within the marsh was comprised of muck (50%), detritus (30%), sand (15%), and silt (5%). Both banks were stabilized with vegetation, such as forbs and grasses including Canada Goldenrod (Solidago canadensis) and Common Cattail. No erosion along the banks was observed throughout the reach at the time of assessment. In-water and overhanging cover was moderate and provided by in-water vegetation, primarily Common Cattails. Scattered clumps of riparian trees and shrubs including Common Buckthorn, and Eastern White Cedar (Thuja Occidentalis) combined with overhanging Common Cattails provided moderate canopy cover and shading of the watercourse (80%). No evidence of groundwater input was observed within this reach at the time of assessment. No fish were observed or sampled within this reach. Temporary / seasonal barriers to fish movement were observed within the downstream reach at the time of assessment and included fluctuating water levels and dense Cattail vegetation. As such, the fish observed in the ROW would also be anticipated to occur in both the upstream and downstream reach.

3.1.2 FISH COMMUNITY

WSP Ecologists did not conduct fish community sampling at this station due to insufficient water depths to submerge minnow traps, however fish were visually observed within the ROW reach. General water quality parameters were collected during the August 23-24, 2018 field investigation. The fish community noted in Table 2 below is based on agency consultation from the MVCA.

Table 2: Fish Community – Southern Unnamed Tributary of Lavallee Creek (Station 1)

COMMON NAME SCIENTIFIC NAME

CONFIRMED OR

LISTED

SPAWNING

PERIOD

(EAKINS, 2018)

Brook Stickleback* Culaea inconstans Listed May – July

Central Mudminnow* Umbra limi Listed April – May

Finescale Dace* Chrosomus negaeus Listed April - May


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CONFIRMED OR

LISTED

SPAWNING

PERIOD

(EAKINS, 2018)

Killifish* Fundulus diaphanus Listed June - August

Minnows*^ Phoxinus Sp. Listed April - August

Northern Pike* Esox lucius Listed March - May

Sunfishes* Lepomis Sp. Listed June – August

Pumpkinseed* Lepomis gibbosus Listed May - August

Yellow Perch* Perca flavescens Listed April - May

*Matt Craig (MVCA – pers. comm., May 3, 2018)

^WSP sampling results

The fish community data indicates that this tributary of Lavallee Creek supports a fish community consisting of bait and forage species that are generally considered to be tolerant habitat generalists. No permanent barriers to fish movement were observed within the assessed reaches. Based on the results of the fish community investigations, combined with the habitat and flow regime present, the Unnamed Tributary of Lavallee Creek at Station 1 has been assessed to function as seasonal direct fish habitat.

Based on the fish community present and MNRF guidelines, the MVCA indicated that the permissible in-water construction timing window for Lavallee Creek is from July 16 to March 14 (no in-water works from March 15 to July 15) of any given year to protect the spring spawning species.

3.2 NORTHERN UNNAMED TRIBUTARY OF LAVALLEE CREEK

(STATION 2)


The assessed reach of the northern Unnamed Tributary of Lavallee Creek at Station 2 conveys an intermittent to permanent surficial flow regime. Flows originate from the west side of Franktown Road as ephemeral roadway runoff as well as from north and west residential areas outletting on the east side of Franktown Road approximately 120 m north of Highway 7 from a 1 m concrete pipe. Surficial flows are conveyed under Franktown Road through a 1.5 m diameter CSP culvert (C6) where they merge with the storm sewer flows and continue flowing east. The watercourse then flows northeast through a large Cattail marsh for approximately 350 m before meandering east for approximately 240 m where it crosses under McNeely Avenue at Station 3 and continues east out of the study area. The culvert (C4) under Highway 7 drains flow into C6. Culvert C4 is proposed for extension and C6 is proposed for replacement and lengthening.

Upstream Reach

The upstream reach of the Unnamed Tributary of Lavallee Creek conveys surficial flows to the north from the west side of Franktown Road / Highway 15 and from the north / south ditches of Highway 7 (C4). Flow is conveyed within an open vegetated ditch exhibiting a distinct channel with undefined banks into the


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assessed reach. The upstream reach was composed entirely of flat habitat with a mean wetted width of approximately 0.2 m with a mean wetted depth of approximately 0.03 m. The mean bankfull width within this reach was approximately 7 m with a mean bankfull depth of 1.7 m. The substrate within the upstream reach was composed of live grasses (80%), sand (10%) and silt (10%). Both banks were well vegetated with grasses and no evidence of erosion was observed. In-water cover was abundant and consisted of in-water vegetation including Smooth Brome (Bromus inermis). Riparian trees and shrubs consisting of Manitoba Maple (Acer negundo), and Red-osier Dogwood (Cornus serica) were sparse along the banks and provided sparse canopy cover and shading of the watercourse (10%). No groundwater seeps were observed within this reach during the time of assessment. Fish were not observed or sampled within the upstream reach and only temporary barriers to fish movement were observed during the time of assessment. As such, the fish present in other reaches would also be able to access the upstream reach.

Within the ROW

On the west side of Franktown Road, within the ROW, ephemeral surficial flows are conveyed north from under Highway 7 (C4) towards the culvert inlet of C6 as a small run then east through a 1.5 m diameter CSP culvert (C6) under Franktown Road where surficial and storm water flows converge into a small pool occurring at the culvert outlet. Flows are then conveyed east to the limit of MTO property approximately 100 m east of Franktown Road. Flows are conveyed east through the highway ROW as a run / pool / riffle habitat sequence within a distinct channel with defined banks through MTO property for approximately 100 m before reaching the downstream reach. The run habitat had a mean wetted width of approximately 1 m with a mean wetted depth of approximately 0.08 m. The run habitat had a mean bankfull width of 1.35 m with a mean bankfull depth of 0.1 m. The pool habitat had a mean wetted width of approximately 3.2 m with a mean wetted depth of approximately 0.5 m. The mean bankfull width within the pool was approximately 4 m with a mean bankfull depth of 1.2 m. The riffle habitat had a mean wetted width of approximately 0.75 m with a mean wetted depth of approximately 0.1 m. The mean bankfull width within the riffle was approximately 1.8 m with a mean bankfull depth of 0.85 m. Substrates within the assessed reach were composed of both coarse and fine materials; primarily sand (40%), cobble (35%) and gravel (25%). The banks were stabilized with forb vegetation and no erosion was observed; however, some accumulation of sand and silt sediments were observed at the storm sewer pipe outlet occurring on the east side of Franktown Road. In-water and overhanging cover was moderate consisting of woody debris (e.g., downed trees), cobbles and emergent in-water vegetation, Common Cattail. Riparian trees and shrubs were present and provided sparse canopy cover and shading of the watercourse (40%). No groundwater seeps were identified in the ROW and only temporary barriers to fish movement were observed (i.e. fluctuating water levels). Fish were observed within the ROW reach and a fish community survey was conducted but yielded no catch. Due to the lack of permanent barriers, fish observed within in the ROW would also be anticipated to occur in both the upstream and downstream reaches.

Downstream Reach

The Unnamed Tributary of Lavallee Creek exits the ROW into the downstream reach in a distinct channel with defined banks with a run / flat habitat sequence. The mean wetted width and depth within the run habitat was approximately 2.1 m and 0.1 m, respectively. The mean wetted width and depth within the flat habitat was approximately 2 m and 0.1 m, respectively. The overall mean bankfull width in the reach was approximately 1.35 m with a mean bankfull depth of approximately 0.15 m. The substrate within this reach was comprised of bedrock (30%), sand (30%), gravel (20%), and silt (20%). Banks were stabilized with vegetation such as forbs and grasses including Canada Goldenrod and Common Cattail. No erosion points along the banks were observed throughout the reach at the time of assessment. In-water cover was moderate and provided by woody debris and aquatic vegetation. Scattered clumps of riparian trees and shrubs including Common Buckthorn, Manitoba Maple and White Ash combined with overhanging Common Cattail provided moderate canopy cover and shading of the watercourse (75%). Groundwater indicators within the downstream reach were present approximately 170 m east of Franktown Road (an area of exposed bedrock and abundant watercress). No fish were observed or sampled within this reach and no barriers to fish movement were observed. As such, the fish observed within the ROW would also be anticipated to occur in the downstream reach.


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WSP Ecologists undertook fish community and water quality sampling during their August 23-24, 2018 field investigation to support fish community data for Lavallee Creek provided during agency consultation by the MVCA. The fish community data is provided in Table 3 below.

Table 3: Fish Community – Northern Unnamed Tributary of Lavallee Creek (Station 2)


CONFIRMED OR

LISTED

SPAWNING

PERIOD

(EAKINS, 2018)










* Matt Craig (MVCA – pers. comm., May 3, 2018)

^ WSP sampling results

The fish community data indicates that the Unnamed Tributary of Lavallee Creek supports a fish community consisting of bait and forage species. All fish are generally considered to be tolerant of poorer water quality and are habitat generalists. Based on fish community data, fish observed during the site investigation, and the habitat and flow regime present, the Unnamed Tributary of Lavallee Creek at Station 2 (C6) has been assessed to function as direct fish habitat and the C4 culvert crossing as indirect fish habitat given its close proximity to C6 and its flow contributions into the downstream reach.



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3.3 NORTHERN UNNAMED TRIBUTARY OF LAVALLEE CREEK

(STATION 3)


The Unnamed Tributary of Lavallee Creek at Station 3 conveys intermittent to permanent surficial flows east from a large Cattail marsh occurring approximately 180 m southwest of the site towards the water crossing at McNeely Avenue. Flow is conveyed east through a densely vegetated swale composed of Common Cattails, and Purple Loosestrife (Lythrum salicaria) towards McNeely Avenue within an indistinct channel with undefined banks. Additional storm water outlet flows converge with surficial flows approximately 15 m west of McNeely Avenue. From the outlet of the storm water pipes the watercourse becomes channelized with a distinct channel with defined banks. Flows are conveyed under McNeely Avenue through a 3 m wide by 1.3 m high concrete box culvert. Flows leave the site within a Reed Canary Grass (Phalaris arundinacea) meadow occurring at the east limit of the study area. Storm sewer flows are conveyed to the site through two separate 1.2 m concrete culvert pipes occurring 15 m west of McNeely Avenue. There are no proposed works associated with this crossing reach.

Upstream Reach

The upstream reach of the Unnamed Tributary of Lavallee Creek enters the study area through a large Cattail marsh within an indistinct channel with undefined banks. Based on Google Earth imagery, this tributary was realigned in 2010 to accommodate the Walmart construction. This reach was comprised of entirely run habitat with a mean wetted width of approximately 0.35 m and with a mean wetted depth of approximately 0.04 m. The mean bankfull width and mean bankfull depth were unable to be measured due to the watercourse exhibiting undefined banks through this reach. The substrate within the upstream reach was composed of muck (50%) and detritus (50%). The banks were not evident; however, appeared to be stabilized by dense vegetation, such as forbs and grasses, including Common Cattails and Purple Loosestrife. No erosion of the banks was observed at the time of assessment. In-water cover was abundant and consisted of Common Cattails and Purple Loosestrife. Scattered riparian trees and shrubs including Common Buckthorn, Bebb’s Willow (Salix bebbiana), and Dogwood species (Cornus sp.) were present in the upstream reach to provide minimal cover within this reach. Fish were not observed or sampled within the upstream reach and the appearance of fluctuating water levels may function as a barrier to fish movement.

Within the ROW

As the Cattail marsh flows enter the ROW, flows were conveyed within an indistinct flow path with undefined banks occurring within a dense Cattail / Purple Loosestrife vegetated swale. The Cattail swale flows turn 90 degrees to the north at the west ROW limit of McNeely Avenue before converging with the two storm water sewer pipe flows occurring 10 m west of McNeely Avenue. Flows are conveyed through the ROW as a run primarily with a short section of riffle habitat. Flows are conveyed east within a distinct channel with defined banks and through the 3 m wide by 1.3 m high concrete box culvert under McNeely Avenue. The mean wetted width of the run habitat was approximately 2 m with a mean wetted depth of approximately 0.6 m. The mean wetted width of the riffle habitat was approximately 0.4 m with a mean wetted depth of approximately 0.1 m. The mean bankfull width within the reach was approximately 6 m, with a mean bankfull depth of approximately 1 m. Substrate within the ROW reach was composed of fine materials; primarily silt (40%), sands (20%), cobble (30%), and gravel (10%). The banks within the ROW were stable and were densely vegetated with Common Cattail, Purple Loosestrife, and occasional American White Elm (Ulmus americana) and Manitoba Maple. In-water cover was abundant and consisted of aquatic vegetation, such as Common Cattails and Sago Pondweed (Stuckenia pectinata). Few riparian trees and shrubs were present to provide sparse canopy cover and shading of the watercourse (20%). No groundwater inputs were identified in the ROW. The fish community within this reach was sampled and yielded a catch of two


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species. Fluctuating water levels and dense vegetation may function as seasonal barriers to fish movement into the upstream reach.

Downstream Reach

The Unnamed Tributary of Lavallee Creek exits the ROW into the downstream reach in a distinct channel with defined banks with a riffle / flat habitat sequence. The mean wetted width and depth within the riffle habitat was approximately 0.45 m and 0.1 m, respectively. The mean wetted width and depth within the flat habitat was approximately 2.1 m and 0.2 m, respectively. The overall mean bankfull width in the downstream reach was approximately 8 m with a mean bankfull depth of approximately 1.5 m. The substrate within this reach was comprised of cobble (30%), sand (30%), gravel (20%), and silt (20%). Banks were stabilized with vegetation such as forbs and grasses including Reed Canary Grass and Purple Loosestrife. No erosion points along the banks were observed throughout the reach at the time of assessment. In-water cover was moderate and provided by woody debris and aquatic vegetation including Sago pondweed. Scattered clumps of riparian trees and shrubs including Common Buckthorn, and Willow species combined with overhanging Common Cattail provided moderate canopy cover and shading of the watercourse (65%). No potential groundwater inputs were observed within the downstream reach. Fish were observed but not sampled within this reach and no barriers to fish movement were observed. As such, the fish observed and captured within the ROW would also be anticipated to occur in the downstream reach.


WSP Ecologists undertook fish community and water quality sampling during their August 23-24, 2018 field

investigation. Fish community data for the Lavallee Creek was provided during agency consultation with

the MVCA. The fish community data is provided in Table 4 below.

Table 4: Fish Community – Northern Unnamed Tributary of Lavallee Creek (Station 3)


CONFIRMED OR

LISTED

SPAWNING

PERIOD

(EAKINS, 2018)

Brook Stickleback*^ Culaea inconstans Confirmed May – July


Finescale Dace* Chrosomus negaeus Listed April – May

Creek Chub^ Semotilus atromaculatus Confirmed May – June


Minnows* Phoxinus Sp. Listed April - August




Yellow Perch* Perca flavescens Listed April – May



The fish community data indicates that the Unnamed Tributary of Lavallee Creek supports a fish community generally consisting of bait, forage, and panfish species with some sportfish in the tributary (Northern Pike). Most fish species are considered to be tolerant of poorer water quality and are habitat generalists. Based on fish community data and fish observed during the site investigation and the habitat and flow regime


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present, the Unnamed Tributary of Lavallee Creek at Station 3 has been assessed to function as direct fish habitat.



(STATION 4)


The assessed reach of the Unnamed Tributary of Lavallee Creek conveys ephemeral to intermittent surficial flows east from the Cattail marsh / treed swamp occurring 550 m northwest of the water crossing at Highway 15 (Station 4 – is associated with culvert crossing C2 of Highway 15) as well as from the southwest wetland occurring 250 m west of the site. Flows are conveyed into the study area within vegetated ditches with a distinct channel and defined banks occurring along the west side of Highway 15 as well as through shallow constructed drainage channels from west of Highway 15. Flows are conveyed east through the Highway 15 ROW within a 1 m diameter CSP culvert and into a deciduous forest occurring directly beyond the east ROW. Flow is then conveyed east for 400 m through the forest within a constructed channel to a ponded water feature located at the end of the partially constructed Captain A. Roy Brown Boulevard, approximately 230 m west of McNeely Avenue. From the pond feature flows are conveyed northeast through a cattail and treed swamp as well as east along the north ROW ditch of Captain A. Roy Brown Boulevard before it reaches Station 5 at the water crossing at McNeely Avenue.

Upstream Reach

The upstream reach of the Tributary of Lavallee Creek enters the study area from the west approximately 100 m north of Station 4 (C2) through a Maple woodland within a distinct, constructed and naturalized channel with defined banks. This reach was comprised of entirely flat habitat with a mean wetted width of approximately 1.2 m and with a mean wetted depth of approximately 0.15 m. The mean bankfull width of the flat habitat was approximately 1.5 m, with a mean bankfull depth of approximately 0.15 m. The substrate within the upstream reach was muck (60%), detritus (30%), and occasional cobbles (10%). Both banks were formed by exposed (blasted) limestone bedrock and stabilized with vegetation, such as forbs and grasses, including Wild Mint (Mentha arvensis) and Reed Canary Grass. No erosion of the banks was observed at the time of assessment. In-water and overhanging cover was moderate and consisted of cobbles and woody debris while in-water vegetation, including dense riparian trees and shrubs including Common Buckthorn, Manitoba Maple, and American White Elm were present in the upstream reach to provide abundant canopy cover and shading of the watercourse (80%). There was no evidence of groundwater inputs within this reach. During the time of assessment, no fish were observed or sampled within the upstream reach and only temporary / seasonal barriers such as fluctuating water levels were observed to prevent fish movement upstream. Approximately 60 m north of where the tributary enters the west ditch system, a culvert (C3) is proposed for extension. However, the reach from the C3 left end to where the tributary enters the west ditch system and flows south, is not deemed fish habitat.

Within the ROW

As the watercourse enters the ROW, flow is conveyed southerly within the west ditch of Highway 15 within a distinct channel with poorly defined banks. Surficial flows from the north and south ditch of the highway converge at C2 and flow under the highway within a 1 m diameter CSP culvert. This culvert is proposed for replacement and lengthening. The habitat within the ROW was comprised entirely of flat habitat. The mean wetted width of flat habitat was approximately 1.2 m, with a mean wetted depth of approximately 0.15 m. The mean bankfull width within the reach was approximately 3.2 m, with a mean bankfull depth of approximately 1.2 m. Substrates were consistent with the upstream reach and were composed of fine


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materials, primarily sand (50%), silt (15%), detritus (25%), and cobbles (10%). The banks within the ROW were stable and moderately vegetated with Common Cattail, and Reed Canary Grass. In-water and overhanging cover was moderate and consisted of woody debris and in-water vegetation, Reed Canary Grass and Common Cattails. Few riparian trees and shrubs were present to provide sparse canopy cover and shading of the watercourse (20%). No groundwater inputs were identified in the ROW. The fish community within this reach was sampled using a minnow trap sets and yielded no catch. No barriers to fish movement were observed within the ROW and it is assumed that any fish inhabiting the ROW could also access the habitat within the upstream and downstream reaches.

Downstream Reach

Within the downstream reach, the Tributary of Lavallee Creek meanders east within a distinct, constructed channel with defined banks through Maple forest habitat for approximately 380 m before reaching a wet meadow / marsh and ponded water feature occurring at the end of the partially constructed Captain A. Roy Brown Boulevard (250 m west of McNeely Avenue). The downstream reach was comprised of run and riffle habitat with a mean wetted width of approximately 1 m and a mean wetted depth of less than 0.15 m. The mean bankfull width within the reach was approximately 3.1 m with a mean bankfull depth of approximately 0.5 m. The substrate within the downstream reach was composed of sand (35%) with silt (35%), cobbles (15%) occasional boulders (10%) and exposed bedrock (5%). The banks were sparsely vegetated with forbs, grasses, and riparian trees / shrubs, including Prickly Ash (Aralia spinosa), Ironwood (Ostrya virginiana), and Sugar Maple (Acer saccharum) but still exhibited minor erosion points likely attributed to “flashy” flows. In-water and overhanging cover was sparse and consisted of cobbles and woody debris scattered along the banks. Riparian trees were present to provide abundant canopy cover and shading of the watercourse (90%). No groundwater inputs were observed during the time of assessment. Fish were observed but not sampled within the downstream reach and temporary barriers to fish movement were observed during the time of assessment, including fluctuating water levels. As such, the fish observed within the downstream reach have the potential to access the habitat in the ROW reach during significant rainfall events or the spring freshet.


WSP Ecologists undertook fish community and water quality sampling during their August 23-24, 2018 field investigation. All sampling was conducted within the highway ROW with minnow traps with no fish species captured and fish only observed in the pond feature at the limit of the downstream reach. The fish community noted in Table 5 below are based on agency consultation with the MVCA.


COMMON NAME SCIENTIFIC NAME CONFIRMED OR

LISTED

SPAWNING PERIOD

(EAKINS, 2018)








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COMMON NAME SCIENTIFIC NAME CONFIRMED OR

LISTED

SPAWNING PERIOD

(EAKINS, 2018)






The fish community data indicates that Lavallee Creek supports a fish community consisting of bait, forage and panfish species with one sportfish (Northern Pike), that are generally considered to be tolerant habitat generalists. Only temporary barriers to fish movement were observed within the assessed reaches. Based on the habitat and flow regime present, the Unnamed Tributary of Lavallee Creek at Station 4 (C2) has been assessed to function as seasonal direct fish habitat.



(STATION 5)


The assessed reach of the Unnamed Tributary of Lavallee Creek at Station 5 conveys an intermittent to permanent surficial flow regime. Surficial flows are conveyed east and north towards the water crossing at McNeely Avenue within a constructed channel occurring along the north ROW ditch of Captain A. Roy Brown Boulevard and west ROW ditch of McNeely Avenue via the open channel. Flow is conveyed east under McNeely Avenue through two 2.1 m diameter CSP culverts. The watercourse then meanders northeast through a constructed channel with sparse aquatic vegetation for approximately 300 m before entering a large Cattail marsh and continuing northeast for approximately 200 m and out of the study area. This reach of Lavallee Creek is part of the unnamed southern tributary. There is no proposed work associated with this crossing.

Upstream Reach

The upstream reach of the Unnamed Tributary of Lavallee Creek conveys intermittent to permanent surficial flows east from a ponded water feature occurring at the end of the partially constructed Captain A. Roy Brown Boulevard (approximately 225 m west of McNeely Avenue) to the McNeely Avenue ROW ditch before meandering north and then east into the CSP culvert. Flows are conveyed as flat habitat within a constructed, distinct channel with defined banks into the assessed reach. The upstream reach was composed entirely of flat habitat with a mean wetted width of approximately 1.4 m and a mean wetted depth of approximately 0.2 m. The mean bankfull width within this reach was approximately 4.5 m with a mean bankfull depth of approximately 2.1 m. The substrate within the upstream reach was composed of exposed bedrock (50%), sand (20%), silt (15%) and muck (15%). Both banks were well vegetated with grasses and no evidence of erosion was observed. In-water cover was present and consisted of in-water vegetation including Common Cattails and Giant Burreed (Sparganium eurycarpum). Riparian trees and shrubs consisting of Sugar Maple, and American White Elm were sparse along the banks and provided sparse canopy cover and shading of the watercourse (10%). No groundwater seeps were observed within this


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reach during the time of assessment. Fish were observed within the upstream ponded water area but not sampled. No barriers to fish movement were observed during the time of assessment. As such, the fish present in this reach would also be able to access the ROW and downstream reach.

Within the ROW

Within the ROW, permanent surficial flows are conveyed north to the culvert inlet at McNeely Avenue (Station 5) within a constructed channel with a distinct flow path and defined banks occurring on the west side of McNeely Avenue. Upstream flows are conveyed through the ROW ditch through the upstream side of the culvert as a long flat. The flat habitat had a mean wetted width of approximately 5 m with a mean wetted depth of approximately 0.35 m. The mean bankfull width within the flat was approximately 6.3 m with a mean bankfull depth of approximately 0.4 m. Flows are then conveyed east through two 2.1 m diameter CSP culverts to the east side of McNeely Avenue into a Cattail choked pool with straw bales occurring at the culvert outlet (downstream). Flows are then conveyed northeast in a sinuous pattern to the ROW limit (approximately 15m east of McNeely Avenue) as a run / flat habitat sequence within a constructed, distinct channel with poorly defined banks for approximately 15 m before entering the downstream reach and exiting the ROW. The run habitat had a mean wetted width of approximately 0.2 m with a mean wetted depth of approximately 0.15 m. The run habitat had a mean bankfull width of approximately 13 m with a mean bankfull depth of approximately 2.2 m. The flat habitat had a mean wetted width of approximately 4.6 m with a mean wetted depth of approximately 0.2 m. The mean bankfull width within the flat was approximately 13 m with a mean bankfull depth of 2.3 m. Substrates within the assessed reach were composed of both coarse and fine materials; primarily gravel (35%), cobble (25%), sand (20%), detritus (10%), and muck (10%). The banks were stabilized with forb vegetation and Cattails. No erosion was observed within this reach at the time of assessment. In-water and overhanging cover was moderate consisting of woody debris (e.g., downed trees), cobbles, and emergent / in-water vegetation, including Common Cattail and Sago Pondweed. Riparian trees and shrubs were present and consistent with the upstream reach providing sparse canopy cover and shading (20%). Two groundwater seeps were identified in the ROW, occurring approximately 20 m southwest of the culvert inlet and were associated with the cattail / treed swamp ecotype occurring west of the ROW. Only temporary barriers to fish movement were observed (i.e. fluctuating water levels, and dense cattails) at the time of assessment. Fish were observed within the ROW reach and a fish community survey was conducted to identify five fish species on site. Due to the lack of permanent barriers, fish observed within in the ROW would also be anticipated to occur in both the upstream and downstream reaches.

Downstream Reach

The Unnamed Tributary of Lavallee Creek exits the ROW into the downstream reach in a distinct channel with defined banks as a run habitat for the remainder of the assessed reach. This reach was designed / realigned in 2010 to accomdoate the commercial developments at McNeely Avenue and Highway 7. The mean wetted width and depth within the run habitat was approximately 0.25 m and 0.15 m, respectively. The overall mean bankfull width in the reach was approximately 13.5 m with a mean bankfull depth of approximately 2.75 m. The substrate within this reach was consistent with the ROW reach and was comprised of sand (30%), gravel (20%), silt (20%), cobble (10%), detritus (10%), and muck (10%). Banks were stabilized with vegetation such as forbs and grasses including Purple Loosestrife and Common Cattail. No erosion points along the banks were observed throughout the reach at the time of assessment. In-water cover was abundant and provided by woody debris and aquatic vegetation, including European Frog-bit (Hydrocharis morsus-ranae). Few riparian trees and shrubs were present but included Willow Species (Salix sp.) and combined with overhanging Common Cattail to provide moderate canopy cover and shading of the watercourse (70%). No groundwater inputs were observed within the downstream reach. Fish were observed but not sampled within this reach and only temporary barriers to fish movement were observed. As such, the fish observed within the downstream reach would also be anticipated to occur in the ROW and upstream reaches.


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WSP Ecologists undertook fish community and water quality sampling during their August 23-24, 2018 field investigation to support fish community data for Lavallee Creek provided during agency consultation with the MVCA. The fish community data is provided in Table 6 below.



CONFIRMED OR

LISTED

SPAWNING PERIOD

(EAKINS, 2018)

Brook Stickleback*^ Culaea inconstans Confirmed May – July


Common Shiner^ Luxilus cornutus Confirmed May - June

Creek Chub^ Semotilus atromaculatus Confirmed May – June



Minnows* Phoxinus Sp. Listed April - August




Yellow Perch*^ Perca flavescens Confirmed April - May

Northern Redbelly Dace^ Chrosomus eos Confirmed May - July



The fish community data indicates that the Unnamed Tributary of Lavallee Creek supports a fish community consisting of bait, forage, and panfish species with one sportfish (Northern Pike). All fish are generally considered to be tolerant of poorer water quality and are habitat generalists. Based on fish community data, fish observed during the site investigation, and the habitat and flow regime present, the Unnamed Tributary of Lavallee Creek at Station 5 has been assessed to function as direct fish habitat.

Based on the fish community present and MNRF guidelines, the MCVA indicated that the permissible in-water construction timing window for the Unnamed Tributary of Lavallee Creek is from July 16 to March 14 (no in-water works from March 15 to July 15) of any given year to protect the spring spawning species.


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4 SPECIES AT RISK The term SAR is used to encompass species that are “designated” by the Committee on the Status of Endangered Wildlife in Canada (COSEWIC) and/or listed under the federal Species at Risk Act (SARA) (2002), or Ontario’s Endangered Species Act (ESA) (2007). Designations include Endangered, Threatened or Special Concern. Species designated as Endangered or Threatened receive legislated protection of individuals and their habitat.

According to the background information provided by the MNRF, and DFO aquatic SAR online mapping, assessed in February 2020, there are no aquatic SAR records present within the study area. As such, it is anticipated that no ESA (2007) or SARA (2002) approvals related to fish SAR will be required for the proposed works. This assessment should be updated prior to commencement of works.


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5 HABITAT SUMMARY TABLE Table 7 provides a summary of the habitat conditions as documented during field investigations.


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Table 7 : Existing Fish and Fish Habitat Conditions Table

GWP WATERBODY LATITUDE

LONGITUDE DATE FLOW

THERMAL REGIME

FISH HABITAT

FISH SPECIES PRESENT

SUBSTRATE TYPE

VEGETATION CONSTRAINTS

AND OPPORTUNITY

SPECIALIZED, LIMITING, OR RARE

FISH HABITAT FEATURES

SPECIES AT RISK

PRESENT

IN-WATER WORKS TIMING

WINDOW

Insert GWP # Name of waterbody and crossing # / station

Decimal degrees Insert Date Sampling Occured

Ephemeral, Intermittent, Permanent

Warm, Cool, Cold

Direct, Indirect, Not Fish Habitat

Indicate if the information is form background secondary source data (indicate source) or if obtained through file investigations

e.g. boulder, cobble, rubble, gravel, sand, muck, etc.

Riparian & in-water species

e.g. Perched culvert, eroding bank, fish passage barrier, undersized CSP

e.g. Ground water upwelling, spawning areas, refugia, migratory routes

Indicate / describe the species at risk and/or critical habitat present

Timing window for when in-water work can occur

GWP 4084-16-00

Southern Unnamed Tributary of Lavallee Creek (Station 1)

UTM 411207 E

4997606 N

August 23-24, 2018

Intermittent to Permanent

Cool/Warm Seasonal Direct Fish Habitat

WSP visual observation of minnows in the ROW MNRF data: Brook Stickleback, Central Mudminnow, Finescale Dace, Killifish, Northern Pike, Sunfishes, Pumpkinseed, Yellow Perch

Sand (35%), Silt (35%) Muck (15%) Detritus (10%) Cobble (5%)

Riparian: Common Buckthorn, Eastern White-cedar, White Ash, Common Cattail, Canada Goldenrod, Reed Canary Grass In-water: Common Cattail, Reed Canary Grass, Purple Loosestrife

Fish passage barrier - Dense vegetation at culvert outlet

None None July 16 to March 14

GWP 4084-16-00

Northern Unnamed Tributary of Lavallee Creek (Station 2)

UTM 411321 E

4997889 N

August 23-24, 2018


Cool/Warm Direct Fish Habitat

WSP visual observation of minnows in the ROW MNRF data: Brook Stickleback, Central Mudminnow, Finescale Dace, Killifish, Northern Pike, Sunfishes, Pumpkinseed, Yellow Perch

Sand (35%) Cobbles (25%) Muck (15%) Detritus (15%) Gravel (10%)

Riparian: Common Buckthorn, Staghorn Sumac, Common Cattail, Canada Goldenrod, Purple Loosestrife, Red-osier Dogwood In-water: Common Cattail, Reed

Fish passage barrier - Dense vegetation in downstream wetland



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LONGITUDE DATE FLOW

THERMAL REGIME

FISH HABITAT


SUBSTRATE TYPE


AND OPPORTUNITY



SPECIES AT RISK

PRESENT


WINDOW Canary Grass, water-cress

GWP 4084-16-00

Northern Unnamed Tributary of Lavallee Creek (Station 3)

UTM 411734 E

4998459 N

August 23-24, 2018


Cool/Warm Direct Fish Habitat

WSP caught Brook Stickleback and Creek Chub in the ROW and downstream reach MNRF data: Brook Stickleback, Central Mudminnow, Finescale Dace, Killifish, Northern Pike, Sunfishes, Pumpkinseed, Yellow Perch

Sand (30%) Silt (20%) Detritus (15%) Muck (10%) Cobble (15%) Gravel (10%)

Riparian: Missouri Willow, White Spruce, Staghorn Sumac, Common Cattail, Canada Goldenrod, Reed Canary Grass, Soft-stem Bulrush In-water: Common Cattail, Sago pondweed, Water Plantain

Fish passage barrier – Dense vegetation in Upstream reach and fluctuating water levels


GWP 4084-16-00


UTM 411723 E

4997378 N

August 23-24, 2018

Ephemeral to Intermittent

Cool/Warm Seasonal Direct Fish Habitat

WSP visual observation of minnows in the downstream reach MNRF data: Brook Stickleback, Central Mudminnow, Finescale Dace, Killifish, Northern Pike, Sunfishes, Pumpkinseed, Yellow Perch

Sand (35%) Silt (20%) Cobble (20%) Muck (10%) Detritus (10%) Gravel (5%)

Riparian: Sugar Maple, Prickly Ash, American White Elm, Common Buckthorn, Common Cattail, Reed Canary Grass In-water: Common Cattail, Purple Loosestrife, Reed Canary Grass

Minor erosion of banks. Fish passage barrier – Fluctuating water levels in Downstream reach



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LONGITUDE DATE FLOW

THERMAL REGIME

FISH HABITAT


SUBSTRATE TYPE


AND OPPORTUNITY



SPECIES AT RISK

PRESENT


WINDOW

GWP 4084-16-00


UTM 412137 E

4997990 N

August 23-24, 2018

Permanent Cool/warm Direct Fish Habitat

WSP caught Brook Stickleback, Common Shiner, Creek Chub, Yellow Perch and Northern Redbelly Dace; all reaches MNRF data: Brook Stickleback, Central Mudminnow, Finescale Dace, Killifish, Northern Pike, Sunfishes, Pumpkinseed, Yellow Perch

Cobble (20%) Sand (20%) Gravel (15%) Silt (15%) Boulder (10%) Muck (10%) Detritus (10%)

Riparian: Sugar Maple, White Ash, Common Cattail, Reed Canary Grass, Purple Loosestrife In-water: Chara, Common Cattail, Purple Loosestrife, Frogsbit,

Fish passage barrier – Dense cattail vegetation at culvert outlet at McNeely Avenue

Two Seeps were observed on the west side of McNeely Ave, originating from the watercourse west bank, 20 m south of the culvert inlet. Potential Spawning area for baitfish

None July 16 to March 14


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6 PROPOSED WORKS AND POTENTIAL

IMPACTS The recommended improvements to the Highway 7 and Highway 15 intersection and the Highway 7 at McNeely Avenue intersection include:

The addition of a through travel lane, as follows:

Highway 7 westbound (WB) from approximately 550 m east of McNeely Avenue to 360 m west of Highway 15;

Highway 7 eastbound (EB) from approximately 360 m west of Highway 15 to the Highway 7 / 15 intersection;

Highway 15 northbound (NB) from approximately 850 m south of Highway 7 to the Highway 7 / Highway 15 intersection; and,

Franktown Road southbound (SB) for approximately 430 m north of Highway 7 to the Highway 7 / Highway 15 intersection.

The addition of a dual left turn lane, as follows:

Highway 7 WB, Highway 15 NB and Franktown Road SB at the Highway 7 / Highway 15 intersection; and,

Highway 7 WB and McNeely Avenue NB at the Highway 7 / McNeely intersection.

The proposed ultimate improvements also include a raised median on Highway 7 between Highway 15 and McNeely Avenue. For implementation of the intersection improvements, some permanent property acquisition beyond the existing MTO ROW is anticipated.

This section summarizes the proposed works associated with the reconstruction of the Highway 7 at Highway 15 and Highway 7 at McNeely Avenue interchanges, and the potential impacts to fish and fish habitat that may occur as a result of the identified preliminary works.

6.1 PRELIMINARY PROPOSED WORKS

The scope of work as it relates to fish and fish habitat includes:

C2 proposed for replacement and lengthening. Existing culvert is a CSPA with a span of 1630mm

and height of 1120mm and a total length of 19.95 m. The replacement culvert will be a concrete

box with a span of 3700mm and a height of 1250mm and a total length of 35 m;

C4 proposed for extension at the inlet and outlet. Existing culvert is a 1200mm CSP with a total

length of 34.01 m. The extension will add an additional length of 14.81 m for a total length of 45.82

m; and,

C6 proposed for replacement and lengthening. Existing culvert is a 1300mm CSP with a total length

of 38.07 m. The replacement culvert will be a concrete box with a span of 1800mm and a height of

1200mm and a total length of 43.72 m.

It should be noted that there is likely to be a realignment of the upstream reach of the Tributary of Lavallee

Creek (South Branch) within the ROW to accommodate the intersection approaches for the new Captain

A. Roy Brown Boulevard, a portion of which runs within the existing ditch system prior to entering the C2

culvert. The assessment for this realignment of watercourse conveyed through the ditch was part of the

Town of Carleton Place’s (Town) Municipal Class Environmental Assessment Addendum completed for the

McNeely Avenue Extension, Captain A. Roy Brown Boulevard, Carleton Place Industrial Park as

documented in the Environmental Study Report prepared by Bytown Engineering (Bytown Engineering,


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2014). As such, it is not included within this report. The Town will be responsible for obtaining permits and/or

approvals required for this work.

6.2 POTENTIAL IMPACTS

The works associated with impacts to fish and fish habitat for this project will require in-water works for two

culvert replacements and one culvert extension. The preliminary permanent and temporary impacts to

potential fish habitat have been determined based on the preferred alignment and its associated proposed

works. Based on the preliminary design details, there will be an increase in total culvert footprint below the

high-water mark (HWM) due to increased lengths of culverts, as outlined below.

Permanent impacts to direct fish habitat include:

Total length of channel enclosed by the culvert replacement and lengthening at C2 will increase by

approximately 15.05 m. Total footprint area to be determined during the detailed design phase.

Total length of channel enclosed by the culvert replacement and lengthening at C6 will increase by

approximately 5.65 m. Total footprint area to be determined during the detailed design phase.

Permanent impacts to indirect fish habitat include:

Total length of channel enclosed by the culvert extension at C4 will increase by approximately

11.81 m. Total footprint area to be determined during the detailed design phase.

Potential temporary impacts to direct and indirect fish habitat include:

Potential sedimentation and erosion associated with the excavation of material and disturbance to

watercourse bed and banks.

Release of deleterious substances to the watercourses such as sediment, fuel, oil and lubricants

associated with the use of heavy machinery.

Temporary removal of riparian vegetation.

Temporary disruption of flow associated with dewatering activities to maintain a dry working area.

Temporary disruption of creek bed and banks associated with use of machinery and access to

culverts.

Some of the preliminary permanent and temporary impacts can be avoided or minimized through the implementation of design and constructrion-realted mitigation measures applied to the timing and methods of construction, as detailed in the Mitigation Measures presented in Section 7.


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7 MITIGATION MEASURES The following measures have been developed through the recommendations listed in DFO’s Measures to Protect Fish and Fish Habitat, and built upon with site-specific mitigation measures appropriate to this project. If during detail design, there are changes to the proposed works which impact fish and fish habitat, the following mitigation measures should be updated / refined.

7.1 CONSTRUCTION-RELATED MITIGATION MEASURES

The following mitigation measures are being recommended for implementation based on the specific works and character of the Tributary of Lavallee Creek (North and South Branches), in order to avoid and/or minimize potential impacts to fish and fish habitat during and following construction activities.

Construction Design

Work will be undertaken in compliance with OPSS-182 General Specification for Environmental Protection for construction in Waterbodies and on Waterbody Banks.

A permissible in-water timing window of July 16 to March 14 will be applied to all works impacting the tributary (C2 and C6), including the culvert extension of C4, as outlined in the Ontario Provincial Standard Specification (OPSS) 182 and 185, to protect the potential for spring spawning species present.

The new culvert installations should be embedded a minimum 300 mm or inset 10% to prevent erosion/undermining of the culvert and minimize the transport of sediment downstream.

All works (excavation and installation) will be completed “in the dry”, whether this is due to naturally dry conditions with no active flow, or through the creation of an isolated area, while maintaining flow around the work site and back into the watercourse downstream of the work area. Cofferdams or other suitable isolation techniques, as indicated in the Contract drawings will be used to isolate the work area, while flow is conveyed by means of a diversion pipe or pump.

The pumping system will be sized to accommodate high flows, monitored during use and back up pumps available. When temporary flow control is undertaken using a pump, the intake will be controlled to prevent entrainment and/or impingement of fish and other aquatic wildlife as outlined in DFO’s Interim Code of Practice for End-of-pipe fish protection screens for small water intakes in freshwater https://www.dfo-mpo.gc.ca/pnw-ppe/codes/screen-ecran-eng.html.

The tributaries at C2 and C6 function as direct fish habitat whereas the upstream reach at C4 functions solely as indirect fish habitat. Before dewatering, a fish salvage may be conducted by a qualified biologist under a License to Collect Fish for Scientific Purposes, obtained from MNRF. Fish salvage may need to be repeated if the area becomes flooded during construction.

Sediment laden discharge water shall be pumped into a vegetated area greater than 30 m from a watercourse or into a settling basin to prevent the entry of deleterious substances re-entering the watercourse.

Any temporarily stockpiled soil, debris or other excess materials, and any construction-related materials, will be properly contained (e.g., within silt fencing) in areas at least 30 m from all watercourses in accordance with OPSS 180. All construction materials, excess materials and debris should be removed and appropriately disposed of following construction.


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All construction-related activities will be controlled to prevent entry of any petroleum products, debris or other potential contaminants / deleterious substances, in addition to sediment as outlined above, to the watercourses.

The Contract Administrator’s team will include an Environmental Inspector experienced in working around watercourses, who will be responsible for ensuring the erosion and sediment control measures are functioning effectively, being maintained and that all of the other general mitigation measures are being implemented as intended. The Environmental Inspector will also ensure all environmental mitigation and design measures are properly installed / constructed and maintained. Appropriate contingency and response plans will be in place and implemented if required.

If the Contractor wishes to alter any of the mitigation plans as outlined in the Contract Document, then the associated approval agency will need to be made aware of and approve the changes prior to construction.

Restoration of Disturbed Areas

It is recommended that any disturbed channel bed associated with culvert works be stabilized using clean, rounded stone in accordance with OPSS 1005 (Material Specification for Aggregates – Streambed Material) and restored to the original watercourse shape and gradient within disturbed areas that are outside the footprint of the culvert and prior to removing site isolation measures.

Any rock proposed for substrate material and to stabilize channel banks shall be clean, free of fine materials and sized to withstand peak flood events. Channel banks shall be graded to ensure that rock placement does not cause narrowing or infilling of the channel.

The construction access, work areas and associated requirements for removal of riparian vegetation will be minimized to the extent required for the construction activities, and these areas will be delineated in the field using properly installed protective silt fencing. All temporarily disturbed areas will be re-stabilized following construction using appropriate means (i.e., seed and mulch).

Sediment and Erosion Control Measures

The Contractor shall follow the erosion and sediment control measures identified in the contract (OPSS 805) and prevent / control potential for erosion and sediment caused by their construction methods and operations so as to meet all legislative requirements, to prevent entry of sediments into the watercourse, and to prevent damage to features and property inside or outside of the ROW.

Silt fencing shall be installed along the channel banks prior to conducting any work with the potential for sedimentation into a watercourse.

In-water isolation techniques (i.e., cofferdams) shall be installed prior to any dewatering and excavation in a watercourse with flowing water. The isolation measure will create an impermeable barrier around the dewatered area to prevent sedimentation downstream.

Disturbed areas with the potential for erosion and sedimentation shall be appropriately stabilized as soon as practical.

Fish Passage Considerations

It is recommended that all new material placed within direct fish habitat culverts is placed to ensure smooth tie-ins between the culverts and the existing channel up and downstream to prevent perching or undercutting of the channel and avoid barriers to fish passage or allochthonous material contributing to downstream habitat.


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Operation and Machinery

All construction-related activities should be controlled so as to prevent entry of any petroleum products, debris or other potential contaminants / deleterious substances, in addition to sediment as outlined above, to the watercourse.

No equipment should be allowed to ford or otherwise enter the tributary except as specified in the Contract or unless authorized by the appropriate environmental agencies and permits.

Equipment will arrive on site in clean condition, operated on dry land and in a manner that minimizes disturbance to watercourse banks and riparian vegetation areas. If equipment use is required below the high-water mark for construction, it will be within areas isolated from flow.

Equipment refueling and maintenance will take place at locations as far away as practical from a watercourse and in a manner that prevents sediment and other deleterious substances from entering into the watercourses.


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8 PRELIMINARY ASSESSMENT OF HADD The preliminary assessment of risk of death to fish and/or creating a HADD to fish habitat in the Tributary of Lavallee Creek (North and South Branches) for the proposed interchange reconstruction works was carried out in accordance with MTO’s 2016 Pilot Protocol, and is based on the preferred alternative in the preliminary design phase. This step wise assessment process involves comparing the proposed works against a series of criteria to determine whether or not the works are anticipated to cause death to fish and/or a HADD to fish habitat. If the proposed works cannot meet the criteria in one assessment step, then the assessment progresses to the next step until it can be determined whether the proposed works can be mitigated such that death to fish and/or a HADD to fish habitat will be avoided. If the proposed works cannot be sufficiently mitigated then a review of the project by DFO will be required to determine the potential that a HADD will result from the proposed works.

The proposed works involving culvert replacements and lengthening on direct fish habitat (C2 and C6) and culvert extension work (C4) on indirect fish habitat were assessed under the Protocol (Pilot, 2016). Based on that review, the works did not meet the requirements to be assessed at Step 1 (occurs in an artificial waterbody, or located beyond 30 m of the high-water level or involves routine works as listed on MTO’s Table 2) or at Step 3 (implementation of MTO’s best management practices (BMPs)). As such, the preliminary assessment was undertaken at Step 4 using the Pathways of Effects (PoE’s) at a very high level to determine if there are any negative residual effects.

The in-water works for culvert replacements and extensions have the potential to disrupt and alter fish habitat through permanent and temporary impacts to bed and banks, and temporary dewatering operations, some of which can be avoided or minimized through the mitigation measures above.

This assessment, based on the preferred alternative in the preliminary design phase could change following the detailed design phase; it is recommended that the assessment be refined / augmented based on the refinements / changes to the design during the next stage.

8.1 PATHWAY OF EFFECTS

A table of the applied PoEs, potential stressors, any residual effects (positive or negative) and determination of HADD of fish habitat in relation to the proposed works is in Appendix F. In summary, alteration of fish habitat will result in very minor residual effects as a result of the enclosure of additional watercourse length of direct fish habitat at C2 and C6. Specific details regarding the area extent of fish habitat enclosure for the culvert lengthening is unknown at this time and should be revisited in detail design to ensure channel tie-ins are captured in the assessment. That said, the habitat alteration will likely have minimal impact to the overall fishery as the habitat will continue to function to support the existing fish community post-construction. The alteration of fish habitat associated with the cuvlert extension at C4 is not anticpated to have any residual effects as per the PoE assessment.

The alteration of fish habitat functions associated with the culvert replacement and lengthening at C2 and C6 may be considered a HADD. There is potential negative residual effects associated with the PoEs for vegeation clearing and grading as it relates to the change in habitat structure and cover. However this alteration is considered a low impact as the habitat will still be both accessible and usable for the resident fish community present within this system. Further assessment during detail design may be required to determine the extent of channel tie-ins at these culverts given the replalcement lengths.


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9 SUMMARY AND CONCLUSIONS This report summarizes the existing fish and fish habitat conditions and preliminary impact assessment for the reconstruction of the intersections at Highway 7 and 15 and Highway 7 at McNeely Avenue, in the Town of Carleton Place, Ontario.

Two tributaries of Lavallee Creek (North and South Branch) are present within the study area. The proposed works associated with this project will impact the North Branch at the culvert crossing of Highway 15 (C6) which is direct fish habitat and at C4 which is indirect fish habitat, as well as the South Branch at the culvert crossing of Highway 15 (C2), which is direct fish habitat. No potential for aquatic SAR was identified within the tributaries; therefore, no approval requirements under SAR legislation are anticipated for the proposed works.

The preliminary proposed works involve reconstruction of two intersections, widening of Highway 7 at Highway 15, and the Highway 15 road works to support the future intersection at Captain A. Roy Brown Boulevard. These works will require the full replacement and lengthening of C2 and C6, both direct fish habitat, and the extension of one indirect fish habitat culvert (C4).

The preliminary assessment of impacts on fish and fish habitat based on the preferred alternative in the preliminary design was taken through Step 4 of the Protocol (Pilot, 2016). Based on a review of the PoEs and relevant mitigation measures, it was determined that the proposed culvert extension will not have any negative residual effects. Implementation of standard design and construction mitigation measures will mitigation impacts to fish habitat downstream. Very minor negative residual effects may occur at C2 and C6 as it relates to the change in habitat cover and structure; however, these effects are low impact as the habitat will still be both accessible and usable for the resident fish community present within this system post-construction. Based on this assessment, it is unlikely that a review by DFO is required; however, this assessment is recommended to be updated / augmented in the detailed design phase when the proposed works and impacts are clearly quantified. The appropriate MTO Notification Package shall be completed and submitted to MTO with the final design details.


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10 BIBLIOGRAPHY − Craig. M. May 3, 2018. Personal Communication with Matt Craig, Management Biologist –

MVCA – Mississippi Valley Conservation Authority.

− Smithers. S. October 30, 2018 Personal Communication with Scott Smithers, Management Biologist – MNRF – Kemptville.

− Ministry of Natural Resources and Forestry, 2015. Species At Risk in Ontario Website. http://www.ontario.ca/environment-and-energy/species-risk-ontario-list - Accessed July 2018.

− Ministry of Transportation. 2013. Environmental Guide for Fish and Fish Habitat. Provincial and Environmental Planning Office, MTO.

− Ministry of Transportation. 2016. Version 3 MTO/DFO/MNR Protocol for Protecting Fish and Fish Habitat on Provincial Transportation Undertakings. Provincial and Environmental Planning Office, MTO.

− Natural Heritage Information Centre (NHIC). 2010. Information obtained online at: https://www.biodiversityexplorer.mnr.gov.on.ca/nhicWEB/mainSubmit.do - Accessed June 2018.

− Ontario Freshwater Fisheries Life History Database. Information obtained online at: http://www.ontariofishes.ca/ - Accessed October 2018.

− Fisheries and Oceans Canada (DFO). 2019. Aquatic Species at Risk mapping. http://www.dfo-mpo.gc.ca/species-especes/sara-lep/map-carte/index-eng.html - Accessed February 2020.

APPENDIX

A CONSTRAINTS

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126 DON HILLOCK DRIVE, UNIT 2AURORA, ONTARIO CANADA L4G 0G9

TEL.: 905-750-3080 | FAX: 905-727-0463 | WWW.WSP.COM

FIGURE NO:

PROJECT NO: DATE:

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17M-01712-04 470 SEPTEMBER 2018

DISCIPLINE:

TITLE:

CONSTRAINTS

HIGHWAY 7 & 15CARLETON PLACE, ONTARIO

PROJECT:

1:10,000

ENVIRONMENT

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DRAWN BY:

T.P.

Data Source: Ministry of Natural Resources, Ontario Base Mapping, October 2016.

100 0 10050 Metres

CLIENT:

ONTARIO MINISTRY OF TRANSPORTATION

CHECKED BY:

REV.:ISSUE:

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DESIGNED BY:

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SURFACE WATER FLOW DIRECTION

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APPENDIX

B AGENCY

CORRESPONDENCE

APPENDIX

C REPRESENTATIVE

PHOTOGRAPHS

Date: November 1, 2018

Project No: 17m-01712-04

Figure No: 1

Fish Sampling Stations

REPRESENTATIVE PHOTOGRAPHS

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Photo 1: Station 1 - Upstream reach of station 1, facing north

along upstream cattail ditch channel.

Photo 2: Station 1 - ROW reach facing upstream channel, fac-

ing west.

Photo 3: Station 1 - Culvert inlet, facing south. Photo 4: Culvert outlet, facing south from Highway 7 ROW

slope.

Photo 5: Station 1 - Outlet pool, downstream channel indis-

tinct and densely vegetated by Cattails.

Photo 6: Station 1 - Downstream reach, Cattail Marsh. Photo 7: Station 1 - Downstream reach, Cattail Marsh.



Figure No: 1



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Photo 8: Station 2 - Upstream reach culvert inlet, facing west. Photo 9: Station 2 - Upstream reach, dry and maintained Photo 10: Station 2 - ROW reach culvert outlet channel, facing

southwest (upstream).

Photo 11: Station 2 - ROW reach, storm sewer outlet pipe on

east side of Franktown road.

Photo 12: Station 2 - Minnow trap location in pool at culvert

and storm sewer outlet.

Photo 13: Station 2 - Downstream reach, slow flowing with

abundant riparian vegetation.

Photo 14: Station 2 - Downstream reach, watercress in chan-

nel at the converging with the Cattail Marsh. Photo 15: Station 2 - Downstream reach, watercress present as

stream flows into Cattail Marsh.



Figure No: 1



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Photo 16: Station 3 - Upstream reach , facing southwest at

vegetated ditch and riparian vegetation.

Photo 17: Station 3 - Upstream channel narrow, shallow and

densely vegetated.

Photo 18: Station 3 - ROW reach and storm sewer outlets,

facing upstream (south).

Photo 19: Station 3 - ROW reach, storm sewer outlet and

Cattail ditch channel. facing downstream (east).

Photo 20: Station 3 - ROW reach concrete box culvert inlet

and retaining block walls, facing downstream (east).

Photo 21: Station 3 - ROW reach and culvert outlet with rip rap

and riparian vegetation, facing east from McNeely Avenue.

Photo 22: Station 3 - Downstream reach channel and riparian

vegetation, facing west towards McNeely Avenue. Photo 23: Station 3 - Brook Stickleback and Creek Chub sampled

from ROW reach.



Figure No: 1



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Photo 24: Station 4 - Upstream reach dry and vegetated with

grasses and forbes, facing southwest from ROW limit.

Photo 25: Station 4 - ROW reach, minnow trap located within

highway 15 & residential property driveway culvert, facing

northwest from ROW upstream.

Photo 26: Station 4 - ROW reach and culvert inlet at Highway

15, facing northwest.

Photo 27: Station 3 - ROW reach culvert outlet channel dense-

ly vegetated with Cattails, facing east.

Photo 28: Station 4 - downstream reach, banks eroded and

moderate woody debris in channel, facing upstream (west).

Photo 29: Station 4 - Downstream reach, exposed weathered

bedrock and clear, slow flowing water.

Photo 30: Station 4 - Downstream reach, weathered bedrock

slope, flows constricted to between boulder and cobble. Photo 31: Station 4 –Downstream reach open ponded water

feature, fish observed in this area.



Figure No: 1



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Photo 32: Station 5 - Upstream reach, stationary water in

newly constructed ditch, facing northwest.

Photo 33: Station 5 - Upstream reach, newly constructed

channel blasted through limestone bedrock, facing south.

Photo 34: Station 5 - ROW reach and culvert inlet pool, facing

northwest.

Photo 35: Station 5, Yellow Perch, Brook Stickleback, Fathead

Minnow, and other fish species sampled from ROW reach

culvert inlet pool.

Photo 36: Station 5 - ROW reach, facing downstream culvert

outlet and Cattail vegetated channel (Northeast).

Photo 37: Station 5 - ROW reach, culvert outlet partially

blocked with straw bails and dense cattails.

Photo 38: Station 5 - Downstream reach, constructed channel

with discontinuous riparian vegetation.

Photo 39: Station 5 - Downstream reach flow very slow to

stationary and well vegetated.

APPENDIX

D HABITAT DATA

SHEETS AND FIELD

NOTES

APPENDIX

E PATHWAYS OF

EFFECTS

1

MTO Template D3 – AQUATIC EFFECTS ASSESSMENT SUMMARY TABLE (Preiminary Design)

WATERBODY / WATERCROSSING

PATHWAY OF EFFECT

STRESSOR MITIGATION MEASURES RESIDUAL EFFECTS

Tributary of Lavallee Creek (North and South Branches) Culvert Replacement & Lengthening (C2 & C6); Culvert Extension (C4)

Vegetation Clearing (L1)

Use of industrial equipment

See Use of Industrial Equipment Pathway of Effects (B2) See B2.



Alteration of riparian vegetation

Management of Erosion and Sediment Controls (M-ESC) Design and implement erosion and sediment controls to contain / isolate the construction zone, manage site drainage / runoff and prevent erosion and of exposed soils and migration of sediment to the waterbody throughout construction and ensure site and all areas that drain to a waterbody are stabilized prior to removal following construction. Rehabilitation - Riparian Vegetation Plantings (R-Veg) Design and implement vegetation rehabilitation plan following construction to re-plant riparian vegetation to pre-construction or better condition. Considerations: Re-instatement of native soils or replacement with topsoil / suitable planting medium, soil / seedbank salvage, vegetation transplant or bio-engineering (e.g. live stakes, cuttings) techniques.

Rehabilitation of Bank (R-Bk) Re-instate and re-stabilize banks of waterbody disturbed during construction to pre-construction configuration and condition (or better condition) using properly designed and installed stabilization measures. Considerations: No hard engineering, vegetation, rock / stone material, temporary measures (e.g. biodegradable materials, nurse-crop vegetation) to provide interim stabilization until vegetation fully established.

Rehabilitation of Exposed Soils / Surfaces (R-ExS) Stabilize and re-vegetate (or use other materials appropriate to site conditions) all areas of soil disturbed / exposed during construction that drain to a waterbody, which includes stabilization of new or cleaned out ditches.

Loss of riparian vegetation to accommodate the culvert lengthening and extension. Localized effect to non-limiting, non-specialized habitat. Riparian vegetation consisting of cattails and grasses (similar to existing conditions) are likely to continue to grow around the new culverts and extension i.e. surrounding banks. No residual effect.



Addition or removal of in stream organic structure

See Fish Passage Issues Pathway of Effects (W8) Rehabilitation of In-stream cover (R-IsC) Design and install in-stream cover habitat elements (e.g. woody debris structures, boulders, overhanging or in-stream vegetation on banks) to replace or re-instate fish cover removed, altered or disturbed during construction. This may include salvage and re-instatement of existing woody debris structures, boulders or in-stream vegetation.

Loss of in-stream organic structure to accommodate the culvert lengthening. Localized effect to non-limiting, non-specialized habitat. Potential residual effect at C2 and C6 as it relates to the change in habitat structure and cover which is considered a low impact as the habitat will still be both accessible and usable for the resident fish community present within this system. N/A to C4.



Bank stability and exposed soils

Operational Constraint for Access (O-Acc) Prohibit / limit access to waterbodies and banks to protect riparian vegetation / minimize bank erosion. Management of Erosion and Sediment Controls (M-ESC) Design and implement erosion and sediment controls to contain / isolate the construction zone, manage site drainage / runoff and prevent erosion and of exposed soils and migration of sediment to the waterbody throughout construction and ensure site and all areas that drain to a waterbody are stabilized prior to removal following construction. Rehabilitation of Bank (R-Bk) Re-instate and re-stabilize banks of waterbody disturbed during construction to pre-construction configuration and condition (or better condition) using properly designed and installed stabilization measures. Considerations: No hard engineering, vegetation, rock / stone material, temporary measures (e.g. biodegradable materials, nurse-crop vegetation) to provide interim stabilization until vegetation fully established. Rehabilitation of Exposed Soils / Surfaces (R-ExS)

No residual effect.

2


PATHWAY OF EFFECT


Stabilize and re-vegetate (or use other materials appropriate to site conditions) all areas of soil disturbed / exposed during construction that drain to a waterbody, which includes stabilization of new or cleaned out ditches.



Increased erosion potential

Management of Erosion and Sediment Controls (M-ESC) Design and implement erosion and sediment controls to contain / isolate the construction zone, manage site drainage / runoff and prevent erosion and of exposed soils and migration of sediment to the waterbody throughout construction and ensure site and all areas that drain to a waterbody are stabilized prior to removal following construction. Rehabilitation of Bank (R-Bk) Re-instate and re-stabilize banks of waterbody disturbed during construction to pre-construction configuration and condition (or better condition) using properly designed and installed stabilization measures. Considerations: No hard engineering, vegetation, rock / stone material, temporary measures (e.g. biodegradable materials, nurse-crop vegetation) to provide interim stabilization until vegetation fully established. Rehabilitation of Exposed Soils / Surfaces (R-ExS) Stabilize and re-vegetate (or use other materials appropriate to site conditions) all areas of soil disturbed / exposed during construction that drain to a waterbody, which includes stabilization of new or cleaned out ditches.

No residual effect.



Change in shade Rehabilitation - Riparian Vegetation Plantings (R-Veg) Design and implement vegetation rehabilitation plan following construction to re-plant riparian vegetation to pre-construction or better condition. Considerations: Re-instatement of native soils or replacement with topsoil / suitable planting medium, soil / seedbank salvage, vegetation transplant or bio-engineering (e.g. live stakes, cuttings) techniques.

No residual effect.



Changed external nutrient/ energy inputs

Rehabilitation - Riparian Vegetation Plantings (R-Veg) Design and implement vegetation rehabilitation plan following construction to re-plant riparian vegetation to pre-construction or better condition. Considerations: Re-instatement of native soils or replacement with topsoil / suitable planting medium, soil / seedbank salvage, vegetation transplant or bio-engineering (e.g. live stakes, cuttings) techniques.

No residual effect.


Grading (L2) Bank stability and exposed soils

Operational Constraint for Access (O-Acc) Prohibit / limit access to waterbodies and banks to protect riparian vegetation / minimize bank erosion. Management of Erosion and Sediment Controls (M-ESC) Design and implement erosion and sediment controls to contain / isolate the construction zone, manage site drainage / runoff and prevent erosion and of exposed soils and migration of sediment to the waterbody throughout construction and ensure site and all areas that drain to a waterbody are stabilized prior to removal following construction. Rehabilitation of Bank (R-Bk) Re-instate and re-stabilize banks of waterbody disturbed during construction to pre-construction configuration and condition (or better condition) using properly designed and installed stabilization measures. Considerations: No hard engineering, vegetation, rock / stone material, temporary measures (e.g. biodegradable materials, nurse-crop vegetation) to provide interim stabilization until vegetation fully established. Rehabilitation of Exposed Soils / Surfaces (R-ExS) Stabilize and re-vegetate (or use other materials appropriate to site conditions) all areas of soil disturbed / exposed during construction that drain to a waterbody, which includes stabilization of new or cleaned out ditches.

No residual effect.

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PATHWAY OF EFFECT



Grading (L2) Increased erosion potential


No residual effect.


Grading (L2) Change in slope Rehabilitation of Exposed Soils / Surfaces (R-ExS) Stabilize and re-vegetate (or use other materials appropriate to site conditions) all areas of soil disturbed / exposed during construction that drain to a waterbody, which includes stabilization of new or cleaned out ditches.

No residual effect.


Grading (L2) Change in land drainage patterns

Design of Drainage System (D-Dr) Design drainage system to avoid diversion of or otherwise minimize changes in drainage to or from a waterbody. See the Drainage Design Standards and the Drainage Management Manual for direction on drainage design.

Any grading associated with the lengthening and extensions will be limited to that needed to tie the new inlets/outlets into the existing channel. No residual effect as the channel tie-ins will match existing grades to maintain flow downstream.


Grading (L2) Addition or removal of in stream organic structure

See Fish Passage Issues Pathway of Effects (W8) Rehabilitation of In-stream cover (R-IsC) Design and install in-stream cover habitat elements (e.g. woody debris structures, boulders, overhanging or in-stream vegetation on banks) to replace or re-instate fish cover removed, altered or disturbed during construction. This may include salvage and re-instatement of existing woody debris structures, boulders or in-stream vegetation.

Loss of in-stream organic structure to accommodate the culvert lengthening. Localized effect to non-limiting, non-specialized habitat. Potential residual effect at C2 and C6 as it relates to the change in habitat structure and cover which is considered a low impact as the habitat will still be both accessible and usable for the resident fish community present within this system. N/A to C4.

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PATHWAY OF EFFECT



Excavation (L3)



No residual effect.


Excavation (L3)

Change in slope and drainage

Design of Drainage System (D-Dr) Design drainage system to avoid diversion of or otherwise minimize changes in drainage to or from a waterbody. See the Drainage Design Standards and the Drainage Management Manual for direction on drainage design.

Rehabilitation of Exposed Soils / Surfaces (R-ExS) Stabilize and re-vegetate (or use other materials appropriate to site conditions) all areas of soil disturbed / exposed during construction that drain to a waterbody, which includes stabilization of new or cleaned out ditches.

Any excavation associated with the lengthening and extensions will be limited to that needed to tie the new inlets/outlets into the existing channel. No residual effect as the channel tie-ins will match existing grades to maintain flow downstream.


Excavation (L3)

Removal of topsoil

Management of Erosion and Sediment Controls (M-ESC) Design and implement erosion and sediment controls to contain / isolate the construction zone, manage site drainage / runoff and prevent erosion and of exposed soils and migration of sediment to the waterbody throughout construction and ensure site and all areas that drain to a waterbody are stabilized prior to removal following construction.

Management of Excess Materials (M-ExM) Temporarily store, handle and dispose of all materials used or generated (e.g. organics, soils, woody debris, temporary stockpiles, construction debris such as concrete, sheet pile, wood forms, etc.) during site preparation, construction and clean-up in a manner that prevents their entry to waterbody including temporarily storing and stockpiling materials a safe distance from waterbody and stabilize / contain them.

No residual effect.


Excavation (L3)

Exposed soils Management of Erosion and Sediment Controls (M-ESC) Design and implement erosion and sediment controls to contain / isolate the construction zone, manage site drainage / runoff and prevent erosion and of exposed soils and migration of sediment to the waterbody throughout construction and ensure site and all areas that drain to a waterbody are stabilized prior to removal following construction. Rehabilitation of Exposed Soils / Surfaces (R-ExS) Stabilize and re-vegetate (or use other materials appropriate to site conditions) all areas of soil disturbed / exposed during construction that drain to a waterbody, which includes stabilization of new or cleaned out ditches.

Disturbed areas around the culvert inlest/outlets will be either seeded or placed with rock protection to ensure protection from scouring of the culvert footings. No residual effect.

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PATHWAY OF EFFECT



Excavation (L3)



Disturbed areas around the culvert inlet / banks will be either seeded or placed with rock protection to ensure protection from scouring of the culvert footings. No residual effect.


Excavation (L3)

Spoil/material stockpiles

Management of Excess Materials (M-ExM) Temporarily store, handle and dispose of all materials used or generated (e.g. organics, soils, woody debris, temporary stockpiles, construction debris such as concrete, sheet pile, wood forms, etc.) during site preparation, construction and clean-up in a manner that prevents their entry to waterbody including temporarily storing and stockpiling materials a safe distance from waterbody and stabilize / contain them.

No residual effect.


Use of Industrial Equipment (B2)

Use of mobile industrial equipment

Operational Constraint for Access (O-Acc) Prohibit / limit access to waterbodies and banks to protect riparian vegetation / minimize bank erosion. Operational Constraint for Timing of In-Water Works (O-TW) Implement timing restrictions on in-water work to protect sensitive life stages / processes of migratory and resident fish.

Management of Equipment (M-Eqp) Operate, store and maintain (e.g., re-fuel, lubricate) all equipment and associated materials in a manner that prevents the entry of any deleterious substance to the waterbody. Any part of equipment entering the waterbody or operating on the bank shall be free of fluid leads and externally cleaned / degreased.


Management - Fish Transfer (M-FTr) Transfer any fish isolated in the work area using appropriate capture, handling and release techniques to prevent harm and minimize stress downstream or away from construction area.

No residual effect.



Oil, grease and fuel leaks from equipment

Management of Spills (M-Spl) Ensure Spills Management Plan (including materials, instructions regarding their use, education of contract personnel, emergency contact numbers) on-site at all times for implementation in event of accidental spill during construction.

No residual effect.

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PATHWAY OF EFFECT














Re-suspension and entrainment of sediment

Management of Erosion and Sediment Controls (M-ESC) Design and implement erosion and sediment controls to contain / isolate the construction zone, manage site drainage / runoff and prevent erosion and of exposed soils and migration of sediment to the waterbody throughout construction and ensure site and all areas that drain to a waterbody are stabilized prior to removal following construction. Management of Dewatering Discharge (M-DwD) Manage all water from dewatering operations to prevent erosion and/or release of sediment-laden or contaminated water to the waterbody (e.g. using appropriately designed and sited temporary settling basin, filter bag, energy dissipation measures).

No residual effect.


Placement of Material or Structures in the Water (W1)

Partial constriction of flow (e.g. Rip-rap, piers, piles, fill)


Culvert lengthening and extension will maintain flow through the culvert and any materials placed in the channel will be placed appropriately to replicate the pre-construction conditions so as to not impede flow or fish passage. No residual effect.



Change in channel morphology or shoreline morphometry

Restoration of Bed and Substrate (R-BdSb) Re-instate and re-stabilize any portion of the bed of any waterbody disturbed during construction to pre-construction (or better) condition, including: Morphological elements (e.g., pools and riffles), and substrates, which may include salvage and re-instatement of native materials.

Inlet/outlet pools at C2 and C6 will be altered for the construction of the culvert replacements/lengthening. The direct habitat functions shall be replicated to pre-construction conditions. The new substrates will be sized accordingly to withstand scouring/erosion (OPSS 1005). No residual effect.

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PATHWAY OF EFFECT




Change in aquatic macrophytes (vegetation)


Rehabilitation of In-stream cover (R-IsC) Design and install in-stream cover habitat elements (e.g. woody debris structures, boulders, overhanging or in-stream vegetation on banks) to replace or re-instate fish cover removed, altered or disturbed during construction. This may include salvage and re-instatement of existing woody debris structures, boulders or in-stream vegetation.

Instream vegetation surrounding the perimeter of the culverts inlets/outlets will be removed thus decreasing aquatic macrophytes. Localized effect to non-limiting, non-specialized habitat. However, it is anticipated that over time, sporadic vegetation growth within these areas will likely occur. No residual effect.



Change in substrate composition

Natural Channel Design (R-NCD) Design new channel links/sections of channel that require realignment to link new culvert inlet or outlet with existing channel alignment using naturalized principles, to maintain existing channel dimensions, length and slope and associated bankfull channel functions and re-instate habitat elements. Restoration of Bed and Substrate (R-BdSb) Re-instate and re-stabilize any portion of the bed of any waterbody disturbed during construction to pre-construction (or better) condition, including: Morphological elements (e.g., pools and riffles), and substrates, which may include salvage and re-instatement of native materials.

Native substrates will be removed for the placement of the culvert extension. Localized effect to non-limiting, non-specialized habitat. However, following construction it is anticipated that native materials will quickly settle into these areas. No residual effect.


Addition or Removal of Aquatic Vegetation (W5)

Change in nutrient inputs

Rehabilitation - Riparian Vegetation Plantings (R-Veg) Design and implement vegetation rehabilitation plan following construction to re-plant riparian vegetation to pre-construction or better condition. Considerations: Re-instatement of native soils or replacement with topsoil / suitable planting medium, soil / seedbank salvage, vegetation transplant or bio-engineering (e.g. live stakes, cuttings) techniques. Rehabilitation of In-stream cover (R-IsC) Design and install in-stream cover habitat elements (e.g. woody debris structures, boulders, overhanging or in-stream vegetation on banks) to replace or re-instate fish cover removed, altered or disturbed during construction. This may include salvage and re-instatement of existing woody debris structures, boulders or in-stream vegetation.

No residual effect.


Addition or Removal of Aquatic Vegetation (W5)

Re-suspension and entrainment of sediments



Management of Dewatering Discharge (M-DwD) Manage all water from dewatering operations to prevent erosion and/or release of sediment-laden or contaminated water to the waterbody (e.g. using appropriately designed and sited temporary settling basin, filter bag, energy dissipation measures).

No residual effect.

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PATHWAY OF EFFECT



Change in Timing, Duration and Frequency of Flow (W7)

Dewatering Management of Dewatering Discharge (M-DwD) Manage all water from dewatering operations to prevent erosion and/or release of sediment-laden or contaminated water to the waterbody (e.g. using appropriately designed and sited temporary settling basin, filter bag, energy dissipation measures).

Management - Work Site Containment (M-WSCon) Design and implement containment plan to isolate all work above water (e.g. cleaning, sandblasting, removal of existing structure, painting) to prevent entry of potentially deleterious materials to the waterbody. The design should include: Regular inspection, removal and disposal of materials generated, and use of in-water scaffolding.

Operational Constraint for Timing of In-Water Works (O-TW) Implement timing restrictions on in-water work to protect sensitive life stages / processes of migratory and resident fish.


No residual effect.


Change in Timing, Duration and Frequency of Flow (W7)

Change in substrate composition

Natural Channel Design (R-NCD) Design new channel links/sections of channel that require realignment to link new culvert inlet or outlet with existing channel alignment using naturalized principles, to maintain existing channel dimensions, length and slope and associated bankfull channel functions and re-instate habitat elements. Rehabilitation of Bed and Substrate (R-BdSb) Re-instate and re-stabilize any portion of the bed of any waterbody disturbed during construction to pre-construction (or better) condition, including: Morphological elements (e.g. pools and riffles), and substrates which many include salvage and re-instatement of native materials.

Native substrates will be removed for the placement of the culvert extensions. Localized effect to non-specialized habitat. After construction, it is anticipated that native materials will quickly settle into this area. Streambed material should be added into the culvert ends; however, it is anticipated that native substrates present in pre-construction will settle over time through the culvert. No residual effect.


Fish Passage Issues (W8)

Upstream passage of fish


Temporary restriction to fish passage during construction at C2 and C6. No residual effect.


Fish Passage Issues (W8)

Downstream passage of fish


Temporary restriction to fish passage during construction at C2 and C6. No residual effect.

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