General

• On the cover of the report, provide the developer’s name and the contact person’s name, address, telephone number, and email address.
• Number each page of the report.
• Provide the name and the version of the software you used to create the analysis.
• Refer to the Uniform Design and Construction Standards for Water Distribution Systems (UDACS), 3rd Edition, for design criteria.
• When the report is complete, ensure that it has been signed and sealed by a professional civil engineer licensed in the State of Nevada, then upload a PDF copy using the Water District’s digital plans and inspections system.
• The District reserves the right to request additional information from the developer, as well as the developer’s engineer.
• The District will endeavor to provide a timely review for all analyses submitted. Any missing information will delay the review and approval of the analyses.

Project description

• Provide a written description of the type of project, location, and existing facilities.
• Include a site map showing project boundaries.
• Provide development information including gross acreage, land use, number of units, anticipated fire flow requirements, development schedule and phasing requirements.
• If the project is part of an oversizing agreement, indicate so in the report, and use the developer-required pipeline diameter when modeling the project.
• Provide a node map clearly delineating the pipeline alignments; layout and names of streets/roadways in which the water lines will be installed; the pipe and node numbers used in the analyses; and fire hydrant locations, including laterals.
• The text and node maps must use a minimum font size of 10 points.

Source hydraulic grade line and water demand calculations

• Clearly show the source node provided by the Water District and use the district-issued hydraulic grade lines (HGLs) for that node in the analysis.
• Include a copy of the letter sent by the district issuing these HGLs.
• Provide the type and location of meters, backflow assemblies, etc., and account for the associated losses.
• Calculate on-site and off-site demands using the district’s water demand factors for gpm/acre and gpm/unit. Use the factor that produces the greater (conservative) total demand for each development. Show the calculations.

Input data tables

• Provide input data tables for all pipes and nodes modeled in the report.
• Pipe input data tables must include:
  • Pipe numbers as shown on the node map.
  • Beginning and ending nodes.
  • Lengths in feet.
  • Diameters in inches.
  • Coefficient of friction.
  • Any other pertinent information.
• Junction node input data tables must include:
  • Node numbers as shown on the node map.
  • Elevation in feet for all nodes using the NAVD 88 datum. Where applicable, elevations must be based on the finish floor.
  • Node demand in gallons per minute.
  • Connecting pipes
  • Any other pertinent information.

Analyses

• Separate analyses for maximum day, maximum day plus fireflow, and peak hour conditions are required for each phase of the development, as well as for the entire project.
• In analyses for maximum day plus fireflow conditions, the worst-case scenario must be considered. A junction node should be placed at the appropriate location in the model to represent a fire hydrant.
• Explain any assumptions made as part of conducting the analyses, and provide any comments that may promote understanding and expedite review of the analyses.

Output data tables

• Output results for pipes must include:
  • Flow rate in gallons per minute.
  • Flow velocity in feet per second.
  • Head loss in feet.
  • Any other pertinent information for each pipe.
• Output results for nodes must include:
  • Hydraulic grade in feet.
  • Node pressure in pounds per square inch.
  • Elevation.
  • Demand.
  • Any other pertinent information for each node.

• For each phase of the development, provide a summary table showing the minimum and maximum residual pressures for each condition, and the minimum and maximum static pressures.