Section 890.1150 Water Service Pipe Installation

Section 890

Section 890.1150  Water

Service Pipe Installation

a)         Underground Water Service.  Water service pipe shall be

installed outside the foundation wall in accordance with either subsection

(a)(1) or (2) and shall comply with both subsections (a)(3) and (4).

1)         Water service and building drain or building sewer may be

installed in separate trenches with a minimum of 10 feet horizontal

separation.  Material listed in Appendix A.Table A (Approved Materials for

Building Sewer and Approved Materials for Water Service Pipe) shall be used,

provided that the material is specific for this type of installation.  (See

Appendix I.Illustration E.)

2)         The water service and the building drain or building sewer may

be installed in the same trench provided that the water service is placed on a

solid shelf a minimum of 18 inches above the building drain or building sewer.

The building sewer shall be of material listed in Appendix A.Table A (Approved

Building Drainage/Vent Pipe) for a building drain.  (See Appendix I.Illustration

F for the proper installation of water service, building drain and building

sewer.)

3)         The minimum depth for any water service pipe shall be at least

36 inches or the maximum frost penetration of the local area, whichever is of

greater depth.

4)         No water service pipe shall be installed or permitted outside

of a building or in an exterior wall unless the pipe is protected from

freezing, in accordance with Section 890.1210(a).

b)         Potable Water Piping and Sanitary Sewer Crossing Installation

Requirements

1)         Potable water piping that passes above or below a sanitary sewer

shall be installed with a minimum vertical separation of 18 inches for a distance

of 10 feet on either side from the center of the sanitary sewer

wall unless the pipe is protected from

freezing, in accordance with Section 890.1210(a).

b)         Potable Water Piping and Sanitary Sewer Crossing Installation

Requirements

1)         Potable water piping that passes above or below a sanitary sewer

shall be installed with a minimum vertical separation of 18 inches for a distance

of 10 feet on either side from the center of the sanitary sewer.

2)         If potable water piping passes beneath a sanitary sewer or

drain, the sanitary sewer or drain shall be constructed of materials as

specified in Appendix A.Table A (Approved Building Drainage/Vent Pipe) for

building drains and shall extend on each side of the crossing to a distance of

at least 10 feet as measured at right angles to the water line.  The potable

water piping shall comply with Appendix A.Table A as specified for a water

service pipe (Approved Materials for Water Service Pipe).  (See Appendix I.Illustration

G.)

3)         When compliance with subsection (b)(1) or (2) is not possible,

a pressure rated pipe, approved for building drain material listed in Appendix

A.Table A, shall encase the water service pipe.  The casing pipe shall be

sealed with a casing seal and extend 10 feet on either side of the center of

the sanitary sewer pipe.  The sleeve or case shall be at least two times the

size of the water service.

c)         When compliance with subsection (a) or (b) is not possible,

the Department shall be contacted for consideration of alternative methods.

d)         Stop-and-Waste Valve.  Combination stop-and-waste valves and

cocks shall not be installed in an underground potable water pipe.  Frost-free

hydrants and fire hydrants shall not be considered stop-and-waste valves.  (See

Section 890.1140(e).)