WSSC’s current 16-tier rate structure has been in place since 1992.

In 2010, WSSC formed the Bi-County Infrastructure Funding Working Group, made up of representatives from Montgomery and Prince George’s County government, WSSC staff and external subject matter experts, to solicit input on the rate study.

Based on the 2012 recommendation of the Bi-County Infrastructure Funding Working Group, WSSC initiated a comprehensive rate structure analysis in 2016. Since that time, WSSC has been actively engaged in a transparent process involving input and recommendations from customers, stakeholders and county government representatives.


The rate study was conducted in two phases, with new rate structure expected to be selected June 2018.

The Bi-County Rate Structure Working Group will make a final rate structure recommendation after public input is received.