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An interceptor is a large sewer that receives flow from a number of other sewers and transports it to a wastewater treatment plant.
The District owns and maintains approximately 230 miles of intercepting sewers within a 355-square-mile service area. The majority of these sewers are greater than 48 inches (4 feet) in diameter, many of which were constructed in deep tunnels. Half of these interceptors are less than 30 years old and constructed of reinforced concrete. Brick sewers comprise the remaining sewers and range in age from 50 to 100 years old. Manhole depths range from 20 feet to over 240 feet.
The District's interceptor network includes three tributary interceptor systems which each transport flow to
one of three wastewater treatment plants. View the Sewer District's complete interceptor network and member communities on our service area map.
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