Water Main Inspection Requirements
This inspection checklist will help you increase safety and compliance. Problems with the main water system will be detected and receiving maintenance attention before they escalate into costlier issues.
MaintainX
07/22/2022
Water Main Inspection Requirements
This inspection checklist will help you increase safety and compliance. Problems with the main water system will be detected and receiving maintenance attention before they escalate into costlier issues.
Final Health Certificate received from Ministry of Health/Public Health Engineer
Contractor has all necessary permits to work in area where applicable.
Safety to public considered.
Traffic and pedestrians are not unduly inconvenienced.
Provisions for emergency vehicles to pass.
Pipe located on line (max. 150mm deviation) -batter boards where applicable.
Trench width - (min. =d + 300 mm, max. = d + 600 mm to 100 mm above pipe).
Adequate cover
Min. 12 m measured from top to pipe
is undeveloped areas pipe laid so that required cover will be realized after street cut to finished grade
Type and Class of Pipe checked
Pipe joints quality.
Correct bedding material (8 mm max.) sand.
Sufficient bedding under pipe (min. 100 mm and min. 150 mm in rock).
Bedding hand tamped around pipe.
Sufficient cover hand placed before machine back filling (0.3 m over pipe)
Adequate thrust blocking and/or joint restraints.
Pipe and fitting joints accessible for repair at thrust blocks.
Valves in proper locations with valve markers where necessary.
Valve boxes extend to grade and clean.
Hydrants in correct location and operational.
Hydrants at correct elevation (hydrant flange elev.)
Clean-up following backfilling closely.
Water services not tapped too close to a joint or to each other. (min. distance 1.0m)
A gooseneck has been provided in water service (min. 650 mm bury on service at bottom of meter setter)
The corporation stop has been properly installed and left in the open position.
The meter setter has been installed in the proper location.
Water services clearly marked and stake painted 'blue'.
Flushouts located correctly and painted.
Air valves located correctly.
Source: MaintainX (Community Member)