Board Of Aldermen - Minutes - 10/14/2021 - P42

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

¢ 13 Pump Stations

¢ 9 Combined Sewer Overflow Structures
¢ 4onthe Nashua River
¢ 5 on the Merrimack River

¢ 8 Siphon Chambers

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