#2210 Inflow and Infiltration On Private Property Webinar IEPA#10712
Inflow and Infiltration on Private Property Webinar
RENEWAL TRAINING CREDIT HOURS FOR WATER OPERATORS AND ENGINEERS 1 TOTAL HOURS 1
CEU TYPE: Technical
WEBINAR TYPE: Technical
IDEM#: Applied for
Presenter: Catherine L. Morley, P.E. Senior Project Manager, RJN Group, Inc.
Summary: For Illinois communities with separate sanitary sewer systems, inflow and infiltration (I/I) is a term most Public Works employees know all too well. When this I/I leads to elected officials hearing the words “basement backup” after severe rain events, it brings an even greater importance to the need to identify, quantify, and remove the excess I/I that is causing problems in the community.
Over the years, the identification of public sector defects in sewer mains and manholes has often been completed along with the rehabilitation of this infrastructure. However, attention to private sector defects has typically been lacking. One of the major components of a private property program is the private property plumbing inspection. This presentation will discuss key issues to consider when beginning to implement a private property inspection program.
- Updating your Ordinance: It is important to confirm that the community has the authority to inspect private property and to address any illicit connections that may be found.
- Planning and Conducting the Inspections: Perhaps the most important part of a successful private property inspection program is to have a strong public relations plan in place prior to conducting inspections. Once this is in place, knowing what to look for, how to find it, and how to document the findings is imperative. Determining the focus areas for inspection can be completed by flow monitoring, building age/construction review, and by night flow isolations; each of which will be addressed.
- Once an area has been identified, a successful private property inspection program will look for defects both outside and inside the home, including cleanout defects, connected downspouts and window well drains, sump pumps, combination sump pumps, diverter valves, and more. In addition, the use of technology in assisting with these inspections will be addressed, including online appointment scheduling, paperless data collection, GIS mapping, etc.
- Quantifying the Data: Once the inspections are complete, it is important to quantify the flow being contributed from the illicit connections identified. Comparing this data to flow meter data for a basin will help to understand the benefit that will be realized by disconnecting flows. This is an often overlooked step in the process that can really help sell a disconnection program to elected officials and justify the time and expenses.
- Removing the flow: The final step of the process, determining how to remove the connections found, who will make the repairs, and who will pay for the repairs will be discussed in this section
COST & REGISTRATION: Illinois Section AWWA Members: FREE; Nonmembers: $30; IND: $25
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