The pressure is on for low-pressure sewers
Buchanan, J. R.  2018.  Proceedings, Water Environment Federation, Water Environment Federation Technical Exhibition Conference, Morial Convention Center, New Orleans, Louisiana. October 2, 2018.

Abstract:
When small communities experience population growth, there is tremendous pressure on the local decision-makers to improve the infrastructure. Whether it is the schools, the roads, or the utilities, these improvements come at a significant cost. If continued growth is desirable, then a small community may consider installing a sewer system so that more housing units can be placed on smaller land parcels. Wastewater collection is the most expensive component of developing a sanitary sewer system and community leaders need comparative economic information in order to decide which style of collection system is best for their community. This report introduces a revised spreadsheet-based model that can provide cost estimations for low-pressure, effluent, vacuum, and gravity sewer systems. Originally created in 2009 with a grant from the WERF, this model has been updated for 2018 construction costs.