Board Of Aldermen - Minutes - 4/26/2021 - P11
Collection System: By the Numbers
¢ 446 Miles — Total for Collection System
¢ 81.6 miles combined sewer
¢ 234.4 miles sanitary sewer
130 miles separate storm drain
¢ 13 Pump Stations
9 Combined Sewer Overflow Structures
¢ 4on the Nashua River
¢ 5 onthe Merrimack River
8 Siphon Chambers
e 22 barrels
¢ 6” to 60” diameter