City of Sarnia
Challenge/Opportunity:
The City of Sarnia is dealing with excess ‘Inflow and Infiltration’ (I&I) of groundwater and stormwater runoff into their sanitary sewers within their Bright’s Grove sanitary collection system. This I&I problem may be due to the relative condition and inherent age of the existing wastewater collection system. This has resulted in an overload of the Bright’s Grove sanitary collection system and thereby causing capacity concerns in the adjoining infrastructure including pumping stations and the Bright’s Grove treatment lagoons.
Solution/Collaboration:
The sanitary collection flow monitoring project will aid in determining the flow rates of the connected sewer pipe lines and help to determine if sewer infiltration or inflow is evident. The Lambton Water Centre (LWC) aims to provide the City with five (5) dedicated flow monitoring sensors (flow loggers) and a dedicated rain gauge to help determine relative sewer flows and potential areas of concern within the collection system. The flow monitoring project will aid in determining the flow rates of the connected sewer pipe lines and help to determine the critical areas in the sewer infrastructure for repair. It is the intention to collect this sewer flow and rain gauge data via remote monitoring capabilities utilizing analysis through Lambton College’s (LC) VMware data cloud server designation. The study will be performed over a 2-year time period to allow for the collection of data over multiple rain, winter and summer dry flow seasons. The data captured during this study will help City Officials better utilize capital expenditures for designing alternate pumping stations and renovating the existing Bright’s Grove treatment lagoons.
Projects List