Commercial, Industrial and Institutional Backflow

As provided for in the Federal Safe Drinking Water Act (SWDA) (P.L. 93-523) enacted 1974 and as amended, and the Commonwealth of Massachusetts Drinking Water Regulation, 310 CMR 22.22, Sudbury Water District acting as a public drinking water supplier, has undertaken the primary responsibility for preventing water from unapproved sources, or any other substances, from entering the public potable water supply:

In compliance with these regulations, Sudbury Water District has contracted a Massachusetts certified cross connection surveyor to inspect and test commercial, industrial and institutional facilities connected to public water.

Testing Frequency:

  • Reduced Pressure Backflow Preventer Devices (RPBP) ⇒ Twice Per Year
  • Double Check Valves Assemblies (DCVA) ⇒ Once Per Year
  • Seasonal Reduced Pressure Backflow Preventer Devices (RPBP) ⇒ Once Per Year

Pursuant to Massachusetts Drinking Water Regulations, 310 CMR 22.22 (13)(b) in the event a backflow prevention device fails testing, as determined by the District or its agent, repair or replacement by a Massachusetts licensed plumber or in the case of fire protection a Massachusetts licensed fire sprinkler fitter / contractor must occur within 14 days of the initial inspection performed; within the same (14) calendar period the owner shall contact the Sudbury Water District directly by telephoning (978) 443-6602 to schedule re-testing of the repaired/replaced device.

A $60.00 fee is assessed upon each test and retest; refusal to observe backflow-testing and inspection may result in loss of water until corrective action is taken.