Thecombined sewer system has expanded to meet the needs of population growth andcurrently consists of approximately 40,000 lineal feet of pipe ranging from 6to 24 inches in diameter.  The remaining sanitary collection systemconsists of approximately 130,000 linear feet of polyvinyl chloride (PVC)and concrete sewer pipe, most of which has been installed beginning in the late1950s.  There are 14 sewage pumping stations serving the sewersystem, three of which pump flows generated from the combined sewer systemarea.