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
\ CSO 006
\ Nashua River i
\
CSO 008 cso 009 \ i
Broad Street Lock Street a Screening and
R SON Disinfection
Pie Na Facility, CSO 014
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i — CSO 005
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Harbor Ave S pert
arbor Ave Sewer / j Storage Tank at
Separation yo | NWOF = CSO 004
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[ CSO 002
eS Salmon Brook Wet Weather
ra Treatment
CSO 003
Farmington Road
Facility
Projects related to CSO Program in yellow
