CORNWALL BLUEPRINT · 4. Foundation drain disconnection from sanitary sewer and either re-routing...

CORNWALL BLUEPRINT

Flood Risk Reduction-Update Meeting

March 26th, 2014

Team Introductions • John St. Marseille, General Manager

• Steve Wintle, Division Manager, Infrastructure Planning

• Bill de Wit, Division Manager, Municipal Works

• Shawn O’Brien, Water and Wastewater Supervisor

• Kyle McIntosh, Municipal Works Technologist

• James Fawthrop, Municipal Design Engineer

• Pierre Lebrun, Plumbing Inspector

• Chris Rogers, Chief Building Official

• Denis Lalonde, Geographic Information System (GIS)

• Cornwall Blueprint

• Sewer Budget

• Flooding Clusters (2010, 2013)

• Inflow / Infiltration

• Likely Flooding Causes

• Sewer Construction By-law

• Actions Undertaken

• Actions Planned

• Flood Risk Reduction Rebate

• Plumbing Retrofit Exhibits

Presentation Overview

Comprehensive Cornwall water brand to

address two key pillars of the Strategic Plan:

Quality of Life and Efficient Services

“Cornwall Blueprint”

• Basement Flooding Mitigation

• Climate Change Planning/Adaptation

• Sewer Extraneous (I/I) Flow Control

• Education and Outreach

• Stakeholder Networking/Consultation

• Monitoring and Reporting

• Neighborhood Enhancement

• Research and Development

• Demonstration Projects

• Fund Leveraging (Grand/Miron)

• Water Demand Management

• Environmental, Water and Infrastructure Awareness

• Homeowner Rebate

Sewer Budget (2014-2016)

• $15 Million

• Flood Reduction Capital Works

– Eamer’s Corners Stormwater Management Pond

– Inflow/Infiltration Reduction

– Sewer Flow Monitoring

– Grand-Miron Sewers/Pumping Station (with Provincial Gov’t Support)

– Ditch/Drain Maintenance

– Flood Risk Reduction Rebate

– Sewer Inspection and Cleaning

– Fly Creek Trunk Sewer Relief

Flooding Clusters

Inflow / Infiltration (I/I)

Inflow / Infiltration (I/I)

• I/I: leaky manholes and sewers (groundwater and surface water contributions)

• Sewer restrictions (grease, roots, debris, etc.)

• Damaged/blocked/restricted private lateral sewers (eg. no-co-rode pipe)

• Roof and foundation drains connected directly to sanitary sewer lateral

Likely Flooding Causes “Flooding by a thousand drips”

5. Except as provided in Section 8, where a storm sewer main exists adjacent to a building or property for which storm drainage from foundation drains, window wells, roof drains and/or catchbasins is required, all runoff water shall be connected to the storm sewer main.

7. Where only a sanitary sewer main exists adjacent to a building or property for which storm drainage from foundation drains, window wells, roof drains and/or catchbasins is required, all runoff water shall be discharged to ground and no storm water from any source shall be directed to the sanitary sewer.

8. All buildings with eaves troughs shall discharge downpipe contents to the ground at a distance of at least one metre away from the foundation.

Sewer Construction By-law Sept. 24th, 1979, revised Jan. 10th, 2000

• Inspect, clean and repair leaky manholes / sewers

Actions Undertaken

• Ditch / Culvert Maintenance

• Boal’s and Eamer’s Corners Drain cleaning

Actions Undertaken

• Dialogue with Stakeholders

– Public Information Session (October 9th, 2013)

– Sewer Budget Presentation to Council (December 5th, 2013)

– Home Flood Risk Reduction Rebate Framework to Council (Feb. 24th, 2014)

– Grand-Miron Sewer Project Provincial Funding (March 13th, 2014)

– Informal discussions with staff and Council

Actions Undertaken

Courtesy of Standard-Freeholder

Courtesy of Standard-Freeholder

• Smoke Testing

Actions Undertaken

•

Actions Planned Grand / Miron – Sewer and Pumping Station

• Low Impact Development (Stormwater Management)

Actions Planned

• Eamer’s Corners Stormwater Pond

Actions Planned

• Guy Street

• Saunders Drive

• Queen Street

• Harbour Road

• Fennell Crescent

Actions Planned Pumping Station Rehabilitation

- SCADA Communications

- Level Controllers

- Access Improvements

- Mechanical

- Electrical

- Flow Measurement

•

Actions Planned • Northern Sanitary Trunk Sewer Relief Interconnection

• Sewer Smoke and Dye Testing

• Real-time Sewer Flow and Water Level Monitoring

• Rain Gauge Installations

• Sewer Network Modeling

• Research and Demonstration Projects

• Citizen Awareness / Consultation (ongoing)

• Ongoing Field Reconnaissance, Sewer Flushing and Camera Inspections (Manholes, Sewers, etc.)

• Annual Sewer Separation Projects

• Home Flood Risk Reduction Rebate

Actions Planned

• 4 Key homeowner rebate opportunities

• Up to $3,600 (80%) in rebates available for approved receipts of $4,500 or more

• Resident will contact the City and City staff will visit the homeowner to review necessary lot-level plumbing corrections

• City will consider retroactive applicants (for qualifying projects undertaken back to Jan. 1st 2010)

• Permits will be required to be eligible for subsidy

Flood Risk Reduction Rebate Program

1. Downspout disconnection (with plugging of connection to

sanitary sewer) and re-routing to surface drainage or other suitable outlet. The available subsidy is the lesser of $100 or 80% of eligible costs. The City may, at its discretion, disallow other rebates (items 2 to 5) if downspouts remain connected (or are suspected of being connected) to the sanitary sewer. Note Sewer By-Law.

Proposed Rebate Structure

2. Certified backwater valve (home interior) installation.

The available subsidy is the lesser of $500 or 80% of eligible costs. Homeowners are also encouraged to undertake item 4 as well, to reduce the risk of a possible self-flooding condition. Note Sewer By-Law.

Proposed Rebate Structure

Self-flooding Condition

3. Certified backwater valve (home exterior) installation.

The available subsidy is the lesser of $1,000 or 80% of eligible costs. Homeowners are also encouraged to undertake item 4 as well, to reduce the risk of a possible self-flooding condition. Note Sewer By-Law.

Proposed Rebate Structure

4. Foundation drain disconnection from sanitary sewer

and either re-routing to sump pit with sump pump installation and surface discharge, or re-directing outlet to storm sewer. The available subsidy is the lesser of $2,000 or 80% of eligible costs. Note Sewer By-Law.

Proposed Rebate Structure

5. Lot grading improvements (shed water away from the foundation). The available subsidy is the lesser of $500 or 80% of eligible costs.

Proposed Rebate Structure

Flood Risk Reduction Rebate Program

Frequently Asked Questions

Thank You.