Tag Archives: inflow

America’s Infrastructure Report Card

The CBS television news show, “60 Minutes,” reported a story about the condition of the United States’ infrastructure, which is considered by the American Society of Civil Engineers infrastructure report card to be a D+. To view the report, click … Continue reading

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Inflow and Infiltration

Many systems have yet to conquer their issues of inflow and infiltration. The excess rainwater, other groundwater sources and runoff following rain events are a regular nuisance to both collection system operators and treatment plant operators. Both systems can become … Continue reading

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How Are Communities Affected by Inflow and Infiltration?

Many small towns throughout Kentucky have aging wastewater collection systems that are failing or in desperate need of repair. Most still use brick sewers built more than 100 years ago, while many more rely on dated combined systems to collect … Continue reading

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Rehabilitation Alternatives

Before the 1980s, sanitary sewer rehabilitation programs were primarily limited to a process of digging up the old one and replacing it. If an existing pipeline was deteriorating or had leaking joints, the pipe was either replaced or a parallel … Continue reading

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After Assessment, What Now?

Now that you have all this data collected from flow monitoring,  interviews and records review, manhole inspections, smoke and dye testing and cleaning and televising the line, just what do we do with it? First, you should determine why you … Continue reading

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Cleaning and Televising the Lines

Cleaning and televising lines are used to help identify any problems that may have occurred within the sewer. Before lines are televised, they must be cleaned by either pigging the lines or jetting. Pigging the lines is when you drag … Continue reading

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Smoke Testing and Dyeing

Smoke and dyed water testing can be used to identify inflow locations and cross connections where inflow has been implicated as a problem in the results of the flow monitoring. Smoke testing is an effective way to detect storm connections … Continue reading

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