Flush It! shows the path wastewater takes to the ALCOSAN treatment facility from any address within the ALCOSAN Service Area. This tool was developed in partnership with ALCOSAN and CivicMapper.
Use the embedded version below, or click here for a full-screen view.
This map shows the path wastewater takes to the ALCOSAN treatment facility from an address you enter.
On the map, you'll see the sewer infrastructure network in the ALCOSAN service area. This represents a composite of data from 83 municipalities and authorities, with the color of the pipe indicating who owns the pipes.
Notably, this map shows the municipal sewer lines that may be taken over by ALCOSAN. This process, called regionalization, entails the transfer of ownership of multi-municipal trunk sewers, wet weather control facilities, and related infrastructure from customer municipalities to ALCOSAN. Note that regionalization extents shown here are preliminary and subject to change. Learn more about the regionalization process from the ALCOSAN website.
Using an address, the map searches for the nearest sewer infrastructure and follows the network all the way downstream to the ALCOSAN treatment facility.
When you type in an address, the mapping program uses a geocoder to calculate the latitude and longitude of the address: the address's location in real-world coordinates. (Note:The starting point is an approximation, and it should not be used for planning or official use.) From that location, it determines where the nearest sewer structure is, and then traces the pipes downstream to the ALCOSAN treatment facility. On its way to ALCOSAN’s plant, wastewater passes through many miles of pipe and often through several municipalities. This highlights the inter-municipal nature of regional wet weather management, and the challenges that municipalities face in maintaining many miles of sewer line.
This map utilizes an existing database of sewer pipe infrastructure in the region. That database is maintained by 3 Rivers Wet Weather with support from ALCOSAN and the 83 communities within ALCOSAN's service area.