Port Credit East Water and Wastewater Servicing Optimization
Schedule C Class Environmental Assessment
Public Information Centre (PIC) Objectives
The objectives of virtual PIC No. 2 are to:
- Present the updated study area, new watermain scope, and objectives.
- Provide progress and next steps in the environmental assessment process.
- Present the preliminary preferred servicing strategies for all study components.
- Receive feedback on the preliminary preferred servicing strategies.
How Can You Help?
Provide your input! After reviewing the PIC materials, navigate to the 'Stay Involved' section or click here to submit your comments. The comment form will be available from May 18 - June 1, 2022. All feedback will be taken into consideration as the study progresses.
Project Overview
The existing sanitary pumping stations (Rosemere, Elmwood, and Hiawatha) and some of the sanitary sewer mains and watermains in the general Port Credit East area are experiencing operational challenges. The Region has initiated a Schedule “C” Municipal Class Environmental Assessment (EA) for this infrastructure to develop an integrated and optimized servicing strategy to meet existing and future growth.
Study Purpose
This study investigated key alternative water and wastewater optimization strategies for the Port Credit East area including the Elmwood and Hiawatha Sewage Pumping Station (SPS) servicing areas, vicinity of the Rosemere SPS, and Lakeshore Road West to East from Front Street to Seneca Avenue.
Key Study Objectives:
- Satisfy the Schedule C Class EA process.
- Providing effective consultation with Stakeholders, Agencies, Indigenous Communities and the Public.
- Ensure a balanced and informed decision-making process.
- Reviewing previous study recommendations.
- Consider unique opportunities and challenges for water and wastewater servicing in the study area.
- Solutions are required to provide continued servicing to the existing community.
- Ensuring solution supports a long-term servicing strategy.
- Protecting the environment.
Study Problem & Opportunity Statement: Develop an integrated water and wastewater optimization strategy for Port Credit East including the Elmwood, Hiawatha, and Rosemere sewage pumping stations and vicinity to support existing servicing needs and projected growth.
Study Components
This study has four (4) key components:
- New Lakeshore Road Trunk Sewer.
- New Lakeshore Road Sub-Transmission Watermain.
- Rosemere Sewage Pumping Station.
- Elmwood and Hiawatha Sewage Pumping Stations.
Note: Both the Lakeshore Road Sewer and Watermains (study component 1 and 2) requires crossing of the Credit River. The Lakeshore Road Watermain is a new component of this project.
The Port Credit East evaluation process followed a multi-step approach to cover all study components and ensure solutions are selected in an integrated manner.
- Evaluate Lakeshore Road Sewer Shaft Options.
- Evaluate Lakeshore Road Sewer Alignment Options.
- Evaluate Lakeshore Road Watermain Shaft Options.
- Evaluate Lakeshore Road Watermain Alignment Options.
- Based on preferred Lakeshore Road Sewer shaft location evaluate Rosemere SPS Options.
- Based on preferred Lakeshore Road Sewer shaft location evaluate Elmwood and Hiawatha SPS Options.
- Ensure collective components align.
The Municipal Class Environmental Assessment Process
The Port Credit East Water and Wastewater Servicing Optimization Strategy is being undertaken as a Schedule C Class Environmental Assessment (EA), satisfying all five (5) phases in accordance with the Municipal Class EA process. For more information: https://municipalclassea.ca/manual/page10.html
We are currently within Phase 2 of the study, with the primary focus on the preliminary preferred solution. This study will hold three (3) Public Information Centres (PIC).
Evaluation Criteria
The following criteria supported the selection of the preliminary preferred servicing strategies for each study component.
Technical Constructability and Feasibility
- Ease of construction.
- Compatibility with existing / planned infrastructure.
- Minimize environmental and infrastructure crossings.
- Minimize conflicts with existing utilities.
- Provides ability to meet existing / future servicing standards.
- Available servicing capacity for future growth.
- Ease of access to maintain.
- Operation and maintenance considerations.
- Flexibility of system operations and operational security.
Environmental
- Climate change.
- Environmental crossing consideration.
- Minimize impact to environmental features, protected areas, species at risk, water features/resources, air quality, natural features and trees.
- Geology, hydrogeology, contamination considerations.
Socio-Economic and Cultural
- Community (residents and local businesses) and traffic considerations.
- Public accessibility during construction and operation.
- Noise, vibration, dust and odour considerations.
- Cultural heritage resources.
- Archaeological resources.
Financial
- Capital needs costs.
- Operation and maintenance costs.
- Lifecycle cost consideration.
- Consideration of potential financial risk during construction.
Legal / Jurisdictional
- Land use, land size, availability, and location.
- Permit requirements.
- Ownership, legal and jurisdictional considerations.
- Compliance with applicable planning and special land use policies.
Study Components - Evaluation Process Overview
Preliminary Preferred Strategy
Through a comprehensive evaluation process, the preliminary preferred was selected for each of the following project components:
1- New Lakeshore Road Trunk Sewer Option L6: Tunnel from Marina Park east to the municipal parking lot at Elmwood Avenue North and Lakeshore Road. Temporary parking lot proposed at Harold E. Kennedy Park during construction. 2- New Lakeshore Road Sub-Transmission Watermain Option W1: Shared shafts and construction compounds from Marina Park to parking lot corner of Elmwood Avenue North and Lakeshore Road. 3- Rosemere Sewage Pumping Station Option R1: New Rosemere SPS and twin forcemains East to Vesta Drive 4- Elmwood and Hiawatha Sewage Pumping Stations Option EH14: Decommission both SPS's and connect to Lakeshore Road Trunk Sewer.
The following presents details of the short listed alternatives for each of the four (4) study components, their evaluation and screening process that resulted in the preliminary preferred strategy presented in the figure on the right.
Disclaimer: Location and alignment of proposed infrastructure are conceptual and not to scale. Preliminary design and alignment will be covered under Phase 3 of the EA process.
1. Lakeshore Road Trunk Sewer
The Front Street SPS Class EA (2019) recommended construction of a new gravity trunk sewer along Lakeshore Road from Front Street SPS to Jack Darling SPS.
Following this decision, an SPS Feasibility Study (2020) was completed and recommended extending this trunk sewer further east across the Credit River to Elmwood Avenue with future phases extending to G.E. Booth Wastewater Treatment Plant.
The Lakeshore Road trunk sewer will provide the Region ability to divert flows from east to west between G.E. Booth and Clarkson Wastewater Treatment Plants, as well as provide the opportunity to decommission several SPSs.
The preferred Lakeshore sewer strategy followed a stepped evaluation approach:
- Long list of crossing alternatives for the Credit River and shaft/construction compound location(s).
- Long list screening criteria.
- Short list of crossing alternatives, shaft location(s) and sewer alignment.
- Short list evaluation criteria.
- Preliminary preferred crossing alternative/shaft location(s) and sewer alignment.
Option L6: Tunnel from Marina Park east to the municipal parking lot at Elmwood Avenue North and Lakeshore Road.
- Direct tunnelled solution avoids major socio-economic impacts along Lakeshore Road and requires less property for shaft locations.
- Removes the need for construction along residential roads.
- Construction impacts will be limited to the Elmwood Avenue and Lakeshore Road municipal parking lot.
- Provides a long-term optimized gravity solution for Port Credit sewer servicing.
This is the selected preliminary preferred strategy. See below for the detailed short listed alternatives that were evaluated.
Alternative Temporary Parking / Farmer's Market Location
Proposed parking lot replacement during construction at the Elmwood Avenue North and Lakeshore Road municipal parking lot.
- Alternative parking options were reviewed to replace the temporary loss of parking during construction.
- The Harold E. Kennedy Park is being considered as a temporary parking lot/ farmer’s market location during construction at the Elmwood Avenue and Lakeshore Road municipal parking lot.
- Construction at the municipal parking lot is anticipated to be approximately 12 months.
- Following construction, the Harold E. Kennedy Park would be restored as full public park space.
2. Lakeshore Sub-Transmission Watermain
The Lakeshore Road sub-transmission watermain is required to support growth along the waterfront and in the Port Credit area, support operations and security of supply for pressure Zone 1, and transfer of flows between East and West water distribution systems.
The preferred Lakeshore watermain strategy followed a stepped evaluation approach:
- Long list of crossing of the Credit River and shaft / construction compound location(s).
- Long list screening criteria.
- Short list of crossing/shaft location(s) and watermain alignment.
- Short list evaluation criteria.
- Preliminary preferred crossing/shaft location(s) and watermain alignment.
Option W1: Shared shafts and construction compounds from Marina Park to parking lot corner of Elmwood Avenue North and Lakeshore Road
- Solution provides unique ability to utilize the same construction compounds and shaft locations as the proposed Lakeshore Road Trunk Sewer.
- Shared shaft and construction compounds for crossing of the Credit River eliminates the need for a second crossing under a different alignment, minimizing potential impacts to natural environmental features.
- Removes the need for additional property - shared Elmwood / Lakeshore parking lot location.
- Provides a long-term optimized water servicing strategy with minimized socio-economic surface disturbed.
- Selected alternative based on greatest benefits from a balanced evaluation process.
This is the selected preliminary preferred strategy. See below for the detailed short listed alternatives that were evaluated.
3. Rosemere Sewage Pumping Station
The existing Rosemere SPS is an important community asset that provides services for residents in the area.
This SPS does not meet current Regional Design Standards and is facing condition, maintenance, performance, and health and safety issues that need to be addressed. A “do nothing” approach is not feasible.
A new servicing solution is required to continue operations for servicing of the existing community. This study evaluated several alternative servicing solutions including:
- New SPSs and forcemains,
- Decommission (removal) of existing SPSs via gravity servicing, or
- Combination of pumping and gravity servicing.
Option R1: New Rosemere SPS and twin forcemains East to Vesta Drive
This strategy is required to provide continued servicing to the area including properties along Rosemere Road.
Construction New Rosemere SPS within the next 5-10 years is needed to replace the existing aging facility. Duration of construction is anticipated to be approximately 12 months. Another component includes tunnelling new forcemains from the SPS facility east to Vesta Drive, reducing surface disturbance to residents.
Impacts Strategy requires removal of trees along Rosemere Road. To reduce residential property impacts, the Region is working with City of Mississauga to place required infrastructure within City land.
This is the selected preliminary preferred strategy. See below for the detailed short listed alternatives that were evaluated.
4. Elmwood and Hiawatha SPS
The existing Elmwood and Hiawatha SPSs do not meet current Regional Pumping Station Design Standards and are facing condition, maintenance, performance, and health and safety issues that need to be addressed. In addition, the firm capacity of the existing SPSs cannot meet future projected flows. A “do nothing” approach is not feasible.
A new servicing solution is required to continue operations for servicing of the existing community. This study evaluated several alternative servicing solutions including:
- New SPSs and forcemains,
- Decommission (removal) of existing SPSs via gravity servicing, or
- Combination of pumping and gravity servicing.
Option EH14: Decommission SPS’s and connect to Lakeshore Road Trunk Sewer by gravity solution
- Allows for decommissioning (removal) of two existing SPSs within public parks, providing additional public space. This includes Tall Oaks Park and Hiawatha Park.
- Solution maximizes the benefits of the new Lakeshore sewer.
- Construction will mainly be within road right-of-way minimizing impacts to surrounding natural environment.
- Short-term construction is required on local roads.
- Removes long-term operational and maintenance requirements.
- Cost-effective solution.
This is the selected preliminary preferred strategy. See below for the detailed short listed alternatives that were evaluated.
Study Next Steps
The project team will be working on a number of tasks outlined below following this PIC:
- Confirm preferred servicing strategies
- SPS Servicing Strategies
- Sewer and Watermain Alignments
- Property Requirements
- Complete additional technical studies on the preferred sites / alignments which may include:
- Stage 2 Archaeological Assessment
- Natural Features Assessment
- Geotechnical Study
- Phase 1 Environmental Site Assessment
- Phase 3 Alternative Design Concepts
- Continue to consult with review and approval agencies and other key stakeholders
Project Timeline
Fall 2020 - Completed
Notice of Commencement and Phase 1 of the Class EA process completed in November 2020.
Summer 2021
Review of baseline and alternatives. Due to the current public gathering restrictions regarding Covid-19, the first PIC was held virtually from August 25 to September 8, 2021.
Spring 2022
Evaluation completed to select the preliminary preferred solution. This is currently where the project is, with this virtual PIC as a key component. The virtual PIC is being held from May 18 to June 1, 2022.
Winter 2022
PIC No. 3 is anticipated to be held in Winter of 2022 to present the preliminary preferred design concepts for the preferred solution.
Spring 2023
A detailed costing, phasing and implementation plan are anticipated to be developed and completed. A notice of completion is anticipated.
Stay Involved
We encourage you to get involved by filling out the comment sheet by June 1, 2022 to provide any feedback on the study and/or if you would like to receive project information updates. Responses to all comments received will be posted on June 10, 2022.
Please contact the Project Manager, Italia Ponce, P.Eng, at any point during the study if you have questions or comments.
10 Peel Centre Drive, Brampton, ON, L6T 4B9 | 905-791-7800 | italia.ponce@peelregion.ca
