Water Supply Requirements

Water Supply Requirements

  • Due to the devastating economic effect of fire upon development under construction, the Fire Marshal requires that the underground infrastructure for fire protection that is required, be in place and in-service prior to accumulation of combustibles on-site and/or construction above grade. This infrastructure shall meet the minimum fire flow as outlined below. Fire hydrant requirements shall meet the requirements of NFPA 1 2012 Edition Chapter 18.
  • Existing fire hydrants within private property or isolated by physical barriers from the proposed development site may not be utilized for fire protection requirements of the proposed construction.  No person shall place or keep any post, fence, vehicle, growth, vegetation, trash, or storage of other materials that would obstruct a fire hydrant or fire protection appliance and hinder or prevent its immediate use by fire department personnel. Such fire hydrant or fire protection appliance shall be maintained readily visible at all times.


The following clearances shall be maintained for all fire hydrants and fire protection appliances:

  • Hydrants - Clearances of 36" shall be maintained around fire hydrants.
  • Fire Protection Appliances – Clearances of seven and one half feet (7' 6") in front of and to the sides of the appliances.
  • Exception: These dimensions may be reduced by the AHJ (Authority Having Jurisdiction).

Fire Department Connections

  • Connections shall be 5" Storz type, angled down at 22 degrees, a have a height of 48" from top of piping to finished grade.
  • New FDC locations shall not be located on any double check valve assembly.
  • Exception: May be modified by AHJ.

Relationship of Fire Hydrant(s) to Fire Department Connection(s)

  • Whenever a proposed development will be required to install one or more fire hydrants as a condition of approval and the proposed development will be equipped with an internal fire protection system (fire sprinklers, standpipes or both) a supporting fire hydrant shall be located within 100 feet, as measured along a normal access route, of the fire department connection for such internal system. Fire hydrant shall be on the same side of the street as the fire department connection.
  • The Fire Hydrant(s) and FDC(s) location shall be coordinated with the Fire Prevention Division.