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Dain City Inflow and Infiltration Investigation and Remediation Action Plan
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In response to resent flooding events in the Dain City neighborhood, the City of Welland has introduced several initiatives to better understand the causes of flooding and to develop implementable solutions to reduce the risk of future flooding.
The City of Welland is embarking on a plan to locate and address sources of high Inflow and Infiltration, and further create a plan to mitigate issues to reduce stress on the wastewater systems, and reduce the volume of wastewater that Niagara Region treats.
Over the next few months, thorough investigations will take place in the affected Dain City areas to ultimately create and execute a Dain City Inflow and Infiltration Investigation and Remediation Action Plan.
City staff and GM BluePlan are working on the following tasks this fall 2020:
Public Outreach and Resident Feedback
CCTV Sewer Inspection
Sanitary Sewer Flow Monitoring
Curbside Property and Neighbourhood Survey
Fog and Dye Testing
Research is KEY to a thorough PLAN. The following information describes key factors of the beginning stages of the Dain City Inflow and Infiltration Investigation and Remediation Action Plan.
Public Outreach and Data Collection: Dain City residents in the affected areas are asked to provide information through a survey. Data collected from the survey is a key tool to preparing and executing a Dain City Inflow and Infiltration Investigation and Remediation Action Plan.
Inflow and Infiltration Investigation: The Dain City Inflow and Infiltration Investigation and Remediation Action Plan investigation will identify unwanted sources of I&I entering into the city’s wastewater collection system. All residents in the I&I investigation areas will receive a letter of notification via mail if or when this procedure will occur. A thorough investigation will help develop appropriate and realistic remediation strategies to reducing and eliminate sources of I&I entering the system.
Fog and Dye Testing: Fog and Dye testing might be conducted in the affected Dain City areas. All residents in the Fog and Dye testing areas will receive a letter of notification in the main if or when this procedure will occur.
What is fog testing? The fog test consists of blowing a harmless coloured vapour into the sewer manholes and pipes and observing where the fog exits from the system. The fog is expected to exit primarily out of manholes on the street and the sewer plumbing stack at the top of your house. It is also possible for fog to exit stormwater catch basins and roof downspouts at the side of a house. The fog used in the test has no odour, isn’t harmful to your health, and will disappear after a few minutes.
In response to resent flooding events in the Dain City neighborhood, the City of Welland has introduced several initiatives to better understand the causes of flooding and to develop implementable solutions to reduce the risk of future flooding.
The City of Welland is embarking on a plan to locate and address sources of high Inflow and Infiltration, and further create a plan to mitigate issues to reduce stress on the wastewater systems, and reduce the volume of wastewater that Niagara Region treats.
Over the next few months, thorough investigations will take place in the affected Dain City areas to ultimately create and execute a Dain City Inflow and Infiltration Investigation and Remediation Action Plan.
City staff and GM BluePlan are working on the following tasks this fall 2020:
Public Outreach and Resident Feedback
CCTV Sewer Inspection
Sanitary Sewer Flow Monitoring
Curbside Property and Neighbourhood Survey
Fog and Dye Testing
Research is KEY to a thorough PLAN. The following information describes key factors of the beginning stages of the Dain City Inflow and Infiltration Investigation and Remediation Action Plan.
Public Outreach and Data Collection: Dain City residents in the affected areas are asked to provide information through a survey. Data collected from the survey is a key tool to preparing and executing a Dain City Inflow and Infiltration Investigation and Remediation Action Plan.
Inflow and Infiltration Investigation: The Dain City Inflow and Infiltration Investigation and Remediation Action Plan investigation will identify unwanted sources of I&I entering into the city’s wastewater collection system. All residents in the I&I investigation areas will receive a letter of notification via mail if or when this procedure will occur. A thorough investigation will help develop appropriate and realistic remediation strategies to reducing and eliminate sources of I&I entering the system.
Fog and Dye Testing: Fog and Dye testing might be conducted in the affected Dain City areas. All residents in the Fog and Dye testing areas will receive a letter of notification in the main if or when this procedure will occur.
What is fog testing? The fog test consists of blowing a harmless coloured vapour into the sewer manholes and pipes and observing where the fog exits from the system. The fog is expected to exit primarily out of manholes on the street and the sewer plumbing stack at the top of your house. It is also possible for fog to exit stormwater catch basins and roof downspouts at the side of a house. The fog used in the test has no odour, isn’t harmful to your health, and will disappear after a few minutes.
This platform is a safe space where you can discuss the flooding issues in the Dain City neighbourhood with residents, city staff, and GM BLUEPLAN professionals. This is an open forum and viewed by the public.
Early September: Public Outreach & Data Collection
Dain City Inflow and Infiltration Investigation and Remediation Action Plan has finished this stage
Public Outreach & Data Collection: Dain City residents in the affected areas are asked to provide information by way of a survey. Data collected from the survey is a key tool to preparing and executing a Dain City Inflow and Infiltration Investigation and Remediation Action Plan .
Mid September: Inflow and Infiltration Investigation
Dain City Inflow and Infiltration Investigation and Remediation Action Plan has finished this stage
Inflow and Infiltration Investigation: The Dain City Inflow and Infiltration (I&I) investigation and remediation action plan investigation will identify unwanted sources of I&I entering into the city’s wastewater collection system. All residents who could be affected by the I&I Investigation will receive a letter of notification in the mail. A thorough investigation will help develop appropriate and realistic remediation strategies to reducing and eliminating sources of I&I entering the system.
October/November: Fog and Dye Testing
Dain City Inflow and Infiltration Investigation and Remediation Action Plan is currently at this stage
Fog and Dye Testing: Begins October 26, 2020 All residents who could be affected by Fog and Dye testing will receive a letter of notification in the mail. For more information and frequently asked questions see public notice below
November/December: Remediation Plan Develpment
this is an upcoming stage for Dain City Inflow and Infiltration Investigation and Remediation Action Plan
City staff and GM BluePlan Engineering will prepare a detailed Remediation Plan for Dain City
December: Council Presentation
this is an upcoming stage for Dain City Inflow and Infiltration Investigation and Remediation Action Plan
City Staff will present a report to City Council for approval on the Dain City Inflow and Infiltration Investigation and Remediation Action Plan.