The City of West Jordan (City) sanitary sewer collection system consists of approximately 365 miles of pipe, and approximately 7,039 manholes. Wastewater is collected with a gravity drainpipe system and conveyed from the west side to the east side of the City with metered discharge points at 9000 South, 8050 South, 7800 South, and 7000 South. Major collection trunk lines run west to east on 9000 South, 7800 South, and 7000 South. Additional collector trunk lines on the west side of the City are in the New Bingham Highway and the Old Bingham Highway, which discharge into the 7800 South trunk line. Each major discharge is connected to a regional trunk line that flows south to north along the Jordan River and into the South Valley Water Reclamation Facility (SVWRF) located at 7495 South 1300 West, West Jordan. The City is a member owner agency of the SVWRF and has purchased capacity up to 18.5 million gallons per day (mgd).
Much of the east side of the City consists of established neighborhoods, commercial areas, and industrial areas. Heavy and light industrial sectors are in the southwest quadrant of the City. The west side of the City beyond 5600 West is experiencing continuing residential and commercial growth with large swaths of land yet to be developed. The previous Sanitary Sewer Master Plan from 2012 provided a detailed, in-depth evaluation of every existing pipeline in the City, incorporating flows from neighborhood sewers and routing these to the collector and major collector pipes. The current study expands the 2012 Sanitary Sewer Master Plan to include development that has taken place since the completion of the 2012 study. Future infrastructure requirements are shown throughout the City, along major trunk lines on the west side where development is not complete.
This Sanitary Sewer Master Plan Update is divided into the following tasks:
1) Updating the Sanitary Sewer Model in InfoSWMM to include all current pipes, manholes, and accurate wastewater loading calculations from each connection.
2) Evaluating the existing system (2019) to determine current capacity and system deficiencies.
3) Evaluating the existing system under future wastewater loading to show the need for existing system improvements that are necessary through buildout, as part of an overall Capital Facilities Plan.
4) Evaluating the need and location for new facilities to accommodate future growth and development on the west side and interior of the City.
A state-of-the-art computer modeling software (InfoSWMM by Innovyze) running in a Geographic Information System (GIS) based environment was used in conjunction with the City's General Land Use Plan to simulate current and future sanitary sewer system capacity.