7.3.5.7.

(1) Except as permitted in Sentences (2) and (3), a buried water service pipe shall be separated from the building drain, building sewer and a private sewage disposal system, by not less than 2 440 mm measured horizontally, of undisturbed or compacted earth.

(2) The water service pipe may be closer than 2 440 mm or be placed in the same trench with the building drain or building sewer if,

(a) the following conditions are met:

(i) the bottom of the water service pipe at all points is at least 500 mm above the top of the building drain or building sewer, and

(ii) when in a common trench with the building drain or building sewer, the water service pipe is placed on a shelf at one side of the common trench,

(b) the water service pipe is constructed of a single run of pipe with no joints or fittings between the street line or source of supply on the property and the inside face of the building, or

(c) the building drain or building sewer is constructed of piping which is pressure tested in accordance with Subsection 7.3.7. at 345 kPa.

(3) A buried water service pipe may pass under a building drain or building sewer if,

(a) a vertical separation of not less than 500 mm is provided between the invert of the building drain or building sewer and the crown of the water service pipe,

(b) adequate structural support is provided for the building drain or building sewer to prevent excessive deflection of joints and settling, and

(c) the length of the water service pipe is located so that there are no joints within 2 440 mm measured horizontally from the intersection with the building drain or building sewer.

(4) A buried water service pipe shall be constructed of a single run of pipe with no joints or fittings between the street line or source of supply on the property and the inside face of the building if the water service pipe is less than 15 m from,

(a) a private sewage disposal system, or

(b) a source of pollution other than a private sewage disposal system.