Watermain Disinfection Checklist for Contractors & Subcontractors
General Requirements
Contractor:________________________________
Contact Name:_____________________________
Phone:____________________________________
Email Address: _____________________________
Projected Start Date: ________________________
MECP Certified Operators with minimum Class 1
Drinking Water Operator Certificate
Working knowledge on
Safe Drinking Water Act
Ontario Watermain Disinfection Procedure
AWWA C651-14 or most current version
AWWA C655-18 or most current version
City of Vaughan’s Appendix Q
(New Watermain Commissioning Requirements)
City of Vaughan’s Water By-Law (177-2016)
City of Vaughan’s BFP By-Law (177-2020)
(Backflow Prevention)
Awareness of Vaughan’s Water System
Municipal Drinking Water Licence
Conditions
Drinking Water Works Permit (DWWP)
Conditions
Equipment & Documentations
Record Keeping (Accurate & legible)
(All stages of Commissioning)
Calibrated testing kits/equipment used
(Calibration records available upon request)
Disinfection Plan / Sketch
Site Location
Project Name & Number, Phase #
Municipal Address
Site Information / Commissioning
Watermain information
(Pipe material, size, type, length)
Appurtenances information
Identify Feed (Source Water)
Proper size By-Pass & Discharge
(Ex: 4” BFP requires 4” By-Pass
Connections & 4” discharge point)
Anticipated Flushing rate
Scouring Velocity will be Achieved
Required Volume
Discharge locations
(Identify any nearby watercourse,
pond, river, creek, etc.)
Details on Disinfection products
Details on De-Chlorination agents
Sample Locations (City Standards)
Procedure to prevent
contamination & ensure efficacy
of disinfection
Procedure to protect environment
Disinfection Process
(BFP Certification, Flushing,
swabbing, cleaning, disinfection
application & removal,
sampling, etc.)
Documentation / Record Keeping
(All Stages)
Check & Verify whether you meet the minimum requirements to proceed with the project
Revision(1.0): January 2021