CORNWALL BLUEPRINT. Flood Risk Reduction-Update Meeting March 26 th, 2014

Transcription

1 CORNWALL BLUEPRINT Flood Risk Reduction-Update Meeting March 26 th, 2014

2 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)

3 Presentation Overview 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

4 Cornwall Blueprint Comprehensive Cornwall water brand to address two key pillars of the Strategic Plan: Quality of Life and Efficient Services 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

5 Sewer Budget ( ) $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

6 Flooding Clusters

7 Inflow / Infiltration (I/I)

8 Inflow / Infiltration (I/I)

9 Likely Flooding Causes Flooding by a thousand drips 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-corode pipe) Roof and foundation drains connected directly to sanitary sewer lateral

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

11 Actions Undertaken Inspect, clean and repair leaky manholes / sewers

12 Actions Undertaken Ditch / Culvert Maintenance Boal s and Eamer s Corners Drain cleaning

13 Actions Undertaken Dialogue with Stakeholders Public Information Session (October 9 th, 2013) Sewer Budget Presentation to Council (December 5 th, 2013) Home Flood Risk Reduction Rebate Framework to Council (Feb. 24 th, 2014) Grand-Miron Sewer Project Provincial Funding (March 13 th, 2014) Informal discussions with staff and Council Courtesy of Standard-Freeholder Courtesy of Standard-Freeholder

14 Smoke Testing Actions Undertaken

15 Actions Planned Grand / Miron Sewer and Pumping Station

16 Actions Planned Low Impact Development (Stormwater Management)

17 Actions Planned Eamer s Corners Stormwater Pond

18 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

19 Actions Planned Northern Sanitary Trunk Sewer Relief Interconnection

20 Actions Planned 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

21 Flood Risk Reduction Rebate Program 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. 1 st 2010) Permits will be required to be eligible for subsidy

22 Proposed Rebate Structure 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.

23 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.

24 Self-flooding Condition

25 Proposed Rebate Structure 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.

26 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.

27 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.

28 Flood Risk Reduction Rebate Program Frequently Asked Questions

29 Thank You.