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// CODE SNIPPET

1101.5.1 Detention Systems

NYC Plumbing Code 2014 > 11 Storm Drainage > 1101 General > 1101.5 Change in Size > 1101.5.1 Detention Systems
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Where a detention system is provided, the pipe leaving the detention tank shall be permitted to be reduced to the flow allowed by the Department of Environmental Protection, provided, however, that an emergency overflow shall be provided to protect the building from internal flooding. Such emergency overflow shall equal the full size of the incoming storm water flow. Such emergency overflow shall discharge the overflow outside of the building into either of the following locations:
  1. The tax lot; or
  2. The public sewer, provided that the overflow piping is provided with a vent, of the same diameter as the overflow piping, that terminates on the front wall of the building facing the street and no more than 2 feet (610 mm) above the sidewalk, provided further that the connection from the overflow pipe to outlet pipe of the detention tank is no more than 9 inches (229 mm) below the top of the curb level. See Figure 1101.5(1).

Related Code Sections


1101.5.1 Storm Drainage, Detention Systems
Where a detention system is provided, the pipe leaving the detention tank shall be permitted to be reduced to the flow allowed by the Department ...
NYC Plumbing Code 2014 > 11 Storm Drainage > 1101 General > 1101.5 Change in Size > 1101.5.1 Detention Systems
1704.20 Structural Tests and Special Inspections, Site Storm Drainage Disposal and Detention Facilities
Storm water detention facilities, roof retention facilities and dry-well systems shall be inspected for conformance with the approved construction ...
NYC Building Code 2008 > 17 Structural Tests and Special Inspections > 1704 Special Inspections > 1704.20 Site Storm Drainage Disposal and Detention Facilities
1704.21 Structural Tests and Special Inspections, Private On-Site Storm Water Disposal Systems and Detention Facilities
Storm water detention and retention systems required to comply with Section 1114 of the New York City Plumbing Code , and roof detention facilities ...
NYC Building Code 2014 > 17 Structural Tests and Special Inspections > 1704 Special Inspections > 1704.21 Private On-Site Storm Water Disposal Systems and Detention Facilities
106.6.2.1 Administration, Connection Feasible and Available
certification may be conditioned by such department on part or all of the stormwater runoff to be disposed of through an on-site detention or retention system ...
NYC Plumbing Code 2014 > 1 Administration > 106 Construction Documents > 106.6 Discharge of Sewage and Discharge and/or Management of Stormwater Runoff > 106.6.2 Stormwater > 106.6.2.1 Connection Feasible and Available
107.11.2.1 Administration, Connection Feasible and Available
certification may be conditioned by such department on part or all of the stormwater runoff to be disposed of through an on-site detention or retention ...
NYC Building Code 2014 > 1 Administration > 107 Construction Documents > 107.11 Discharge of Sewage and Discharge and/or Management of Stormwater Runoff > 107.11.2 Stormwater > 107.11.2.1 Connection Feasible and Available
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