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// CODE SNIPPET

720.0 Sewer and Water Pipes

California Plumbing Code 2019 > 7 Sanitary Drainage > 720.0 Sewer and Water Pipes
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720.1 General

Building sewers or drainage piping of clay or materials that are not approved for use within a building shall not be run or laid in the same trench as the water pipes unless the following requirements are met:
  1. The bottom of the water pipe, at points, shall be not less than 12 inches (305 mm) above the top of the sewer or drain line.
  2. The water pipe shall be placed on a solid shelf excavated at one side of the common trench with a clear horizontal distance of not less than 12 inches (305 mm) from the sewer or drain line.
  3. Water pipes crossing sewer or drainage piping constructed of clay or materials that are not approved for use within a building shall be laid not less than 12 inches (305 mm) above the sewer or drain pipe.
     For the purpose of this section, "within a building" shall mean within the fixed limits of the building foundation.

Related Code Sections


720.0 Sanitary Drainage, Sewer and Water Pipes
) above the top of the sewer or drain line. The water pipe shall be placed on a solid shelf excavated at one side of the common trench with a clear ...
California Plumbing Code 2019 > 7 Sanitary Drainage > 720.0 Sewer and Water Pipes
720.0 Sanitary Drainage, Sewer and Water Pipes
) above the top of the sewer or drain line. The water pipe shall be placed on a solid shelf excavated at one side of the common trench with a clear ...
California Plumbing Code 2016 > 7 Sanitary Drainage > 720.0 Sewer and Water Pipes
609.2 Water Supply and Distribution, Trenches
Water pipes shall not be run or laid in the same trench as building sewer or drainage piping constructed of clay or materials that are not approved ...
California Plumbing Code 2016 > 6 Water Supply and Distribution > 609.0 Installation, Testing, Unions, and Location > 609.2 Trenches
609.2 Water Supply and Distribution, Trenches
Water pipes shall not be run or laid in the same trench as building sewer or drainage piping constructed of clay or materials that are not approved ...
California Plumbing Code 2019 > 6 Water Supply and Distribution > 609.0 Installation, Testing, Unions, and Location > 609.2 Trenches
1503.11 Alternate Water Sources for Nonpotable Applications, Pipe Separation in Trenches
the reclaimed (recycled) water piping. Reclaimed (recycled) water pipes laid in the same trench or crossing building sewer or drainage piping shall ...
California Plumbing Code 2016 > 15 Alternate Water Sources for Nonpotable Applications > 1503.0 Recycled Water Supply Systems in Buildings > 1503.11 Pipe Separation in Trenches
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