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// CODE SNIPPET

1504.5.1 Mulch Basin

California Plumbing Code 2019 > 15 Alternate Water Sources for Nonpotable Applications > 1504.0 Subsurface Irrigation System Zones > 1504.5 Irrigation, Disposal Field and Mulch Basin Construction > 1504.5.1 Mulch Basin
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A mulch basin may be used as an irrigation or disposal field. Mulch basins shall be sized in accordance with Table 1504.2 and of sufficient depth, length and width to prevent ponding or runoff during the gray water surge of a clothes washer, bathtub or shower. Mulch must be replenished as required due to decomposition of organic matter. Mulch basins will require periodic maintenance, reshaping or removal of dirt to maintain surge capacity and to accommodate plant growth and prevent ponding or runoff.

Related Code Sections


1502.11.1 Alternate Water Sources for Nonpotable Applications, Mulch Basin
A mulch basin may be used as an irrigation or disposal field. Mulch basins shall be sized in accordance with Table 1502.10 and of sufficient depth ...
California Plumbing Code 2016 > 15 Alternate Water Sources for Nonpotable Applications > 1502.0 Gray Water Systems [BSC-CG] > 1502.11 Irrigation, Disposal Field and Mulch Basin Construction > 1502.11.1 Mulch Basin
1504.5.1 Alternate Water Sources for Nonpotable Applications, Mulch Basin
A mulch basin may be used as an irrigation or disposal field. Mulch basins shall be sized in accordance with Table 1504.2 and of sufficient depth ...
California Plumbing Code 2019 > 15 Alternate Water Sources for Nonpotable Applications > 1504.0 Subsurface Irrigation System Zones > 1504.5 Irrigation, Disposal Field and Mulch Basin Construction > 1504.5.1 Mulch Basin
1504.2 Alternate Water Sources for Nonpotable Applications, Required Area of Subsurface Irrigation Fields, Subsoil Irrigation Fields, and Mulch Basins
The minimum effective irrigation area of subsurface irrigation fields, subsoil irrigation fields, and mulch basins shall be determined by Table ...
California Plumbing Code 2019 > 15 Alternate Water Sources for Nonpotable Applications > 1504.0 Subsurface Irrigation System Zones > 1504.2 Required Area of Subsurface Irrigation Fields, Subsoil Irrigation Fields, and Mulch Basins
1502.11.2 Alternate Water Sources for Nonpotable Applications, Irrigation Field
for five minutes, before burial. All supply piping shall be covered to a minimum depth of two (2) inches (51 mm) of mulch or soil. Drip feeder lines can ...
California Plumbing Code 2016 > 15 Alternate Water Sources for Nonpotable Applications > 1502.0 Gray Water Systems [BSC-CG] > 1502.11 Irrigation, Disposal Field and Mulch Basin Construction > 1502.11.2 Irrigation Field
1502.11.3 Alternate Water Sources for Nonpotable Applications, Disposal Field
The provisions of this section are not intended to prevent the use of any appropriate material, appliance, installation, device, design or method ...
California Plumbing Code 2016 > 15 Alternate Water Sources for Nonpotable Applications > 1502.0 Gray Water Systems [BSC-CG] > 1502.11 Irrigation, Disposal Field and Mulch Basin Construction > 1502.11.3 Disposal Field
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