Chapter 12

• 150 mm Minimum diameter of building sewer, but not less than the size of the building drain
• 2% Recommended slope for building sewer.
• 1% Allowable slope for drainage piping 102 mm or larger in diameter given the site constraints.
• 0.5% Allowable slope for drainage piping 203 mm or larger in diameter.
• 0.60 m Distance of the building sewer from the outer face of any building foundation or wall.
• 0.30 m Minimum depth of building sewer below the finish surface of the ground
• exceeding 135° Aggregate offset angle to be provided with an additional cleanout.
• less than 3 m Length of building sewer not requiring for a cleanout.
• 91 m Maximum distance between manholes
• 0.30 m Distance between bottom of water pipe and top of the sewer or drain line
• 0.30 m Horizontal distance between the water line and the sewer or drain line
• 0.30 m Distance between sewer or drainage piping and water pipes crossing above such drainage pipes.
• 3 m Minimum distance of water pipe joints away from a sewer line.
• 1.5 m Distance within the property line where every abandoned building sewer shall be plugged or capped.
• 30 days Maximum number of days from the time of connection to the public sewer an abandoned disposal facility shall be filled.
• 0.60 m Minimum horizontal distance of a building or structure from the building sewer.
• 15.2 m Minimum horizontal distance of water supply wells from the building sewer.
• 7.6 m Allowable reduction in distance between water supply wells and building sewer when constructed of approved materials for use within a building.
• 15.2 m Minimum horizontal distance of streams from the building sewer.
• 0.30 m Minimum horizontal distance of on-site domestic water service line from the building sewer.
• 0.30 m Minimum horizontal distance of public water main from 3 m - Appendix B the building sewer.