Bristol Town Of--treatment Plant 180 Ayers Island Rd Bristol, NH 03222 Phone : (603) 744-5400 Business Category Government Offices-City Village & Twp Government Offices State & Local Government Offices & Public Schools Bristol Water & Sewer Department 180 Ayers Island Rd Bristol, NH 03222 Phone : (603) 744-5400 Business Category Government Offices-City Village & Twp Legislative Bodies Regulation & Admin Of Communications Electric Gas & Other Utilities