Latest News How to Protect Your Neighborhood STEP System STEP refers to Septic Tank Effluent Pump — a system of wastewater disposal that services many neighborhoods in Rutherford County. See this PDF document to learn more. STEP system mailer Related Articles CUD offers a downloadable holiday cookbook for Christmas 2020 As a way of providing added value to its ratepayers during the holidays, CUD has developed a free, downloadable cookbook. For residents who may wish to prepare more of their Bacteria can’t hide from CUD’s FlowCam A big part of water quality involves identifying and eliminating microscopic bacteria – even those that are much smaller than the width of a human hair. That’s why the K.