• City of Jerome uses HDPE or CMP, not RCP
  • Treasure Valley Pipe
    • Doug Brown, 208-733-4188,
    • Stock 36“ CMP in 20' and 24' lengths at a cost of $31.60 per foot
    • Connecting bands are $63.20 each

Mannings Equation

Concrete Pipe

Corrugated Metal Pipe (CMP)

Sales - Contech

  • Andy Clark, Sales Engineer, 208-220-8684,
  • Ben Hurst, Engineering Manager, 513-645-7501,
    • Paige Chapman, provides design engineering support for Washington, Oregon, Idaho and Utah
    • Erik Early, provides design engineering support for California, Nevada, and Arizona

Fire Sprinkler Requirements

Fire Sprinkler Design


  • “Water mains must provide adequate maximum day demand, peak hour demand, and maximum day plus fire flow pressures.” (City of North Las Vegas - Network Hydraulic Analysis Guidelines)
  • Maximum Day Demand - The maximum daily demand for water over a one-year period, as determined by historical data (UDACS 2010, 1.01.90)
  • Peak Hour Demand - The volume of water which must be supplied by a public water system to meet the greatest demand per hour of its customers for any hour during a yearly period.“ (UDACS 2010, 1.01.101)
  • Reduced Pressure Principle Assembly (RPPA) - for domestic/irrigation applications
  • Reduced Pressure Detector Assembly (RPDA) - backflow prevention for fire sprinklers
  • “For all commercial developments, installation of a RPPA (domestic/irrigation) or RPDA (fire) is required. For the current approved RPPA & RPDA listings, please refer to the

LVVWD RPPA for Domestic and Irrigation

  • LVVWD Approved Products - Zurn Wilkins RPPA


Forms - North Las Vegas


  • North Las Vegas - according to Quang Phan, just pay the $50 application fee when submitting plans, then at the final mylar stage, North Las Vegas staff will determine all fees to be paid. This saves time, running back and forth with the developer asking for checks.
  • Clark County Fire Prevention Bureau
  • City of North Las Vegas - Plan Check Fee
    • obtained from completed Bond and Fee Estimate (B&F Est.)
  • City of North Las Vegas - Water Service Application Fee
  • State of Nevada - Division of Water Resources Fee (5 acre feet) make payable to City of North Las Vegas
  • Clark County
  • NDOT

Planning Water Main

Full Frontage Extension

  • “Water mains may be required at the Agency's discretion along the entire length of at least one property line frontage of the property to be developed whenever future main extension is possible. The property line frontage is that portion of the property along the public ROW. If a parcel to be developed has more than one property line frontage, the Agency may require a water main to be installed along the other frontages(s). The minimum pipe diameter required in the frontage street shall be in accordance with Section 2.02, or as required by the Agency.” (UDACS 2.05 Full Frontage Extension)

Calculate Static Pressure

  • Static Press (psi) = (Pressure Zone - Finish Floor Elevation) / 2.31
    • Weight density of water is 62.4 lbs/ft^3
    • Weight density of water in lbs/(in^2-ft) = 62.4 lbs/ft^2-ft * (ft^2/144 inch^2) = 0.433 lbs/inch^2-ft = 0.433 psi/ft
      • psi = lbs/inch^2
    • Static Pressure Formula
    • LVVWD from Ed Demars, PE, PMP, Civil Engineer in Planning & Engineering Services Division, 702-258-7174,
    • Static Pressure < 70 psi requires a Booster Pump
    • Static Pressure > 80 psi requires individual pressure reducing valve (see UDACS 2.01.02, p. 2-1)
    • Acceptable static pressure between 45 psi and 100 psi (see UDACS 2.01.01, p. 2-1)

Water Plan

Cover Sheet

  • Name of Project (Headlines)
  • Jurisdiction
  • Location Address
  • APN
  • Acreage
  • Owner Name, Address, Phone, Email
  • Developer Name, address, Phone, Email
  • Sheet Index
  • Legal Description
  • Location Map
  • Call before you dig warnings
  • CNLV Project Number (bottom right corner)
  • CLV Project Number (bottom right corner)

General Notes

  • Lochsa
      • City of Henderson
      • City of Las Vegas
      • City of North Las Vegas
      • Clark County
      • LVVWD Std Notes 10-18-21
  • City of North Las Vegas
  • City of Las Vegas
    • Standard Notes
    • Fire and Rescue Notes
    • Storm Water Management Notes
  • Southwest Gas Corporation
    • General Notes
    • LVVWD Fire Flow Calculations
      • LVVWD Fire Flow Table
    • LVVWD Approved for Construction signature block
      • Add to cover sheet AND utility sheet(s)
      • LVVWD Approved Block
      • obtained from
        • - Engineering Plans Examiner I, LVVWD Engineering Services, 702-258-3893
        • - Senior Civil Engineering, LVVWD Planning/Engineering Services, 702-283-5201

Profile Water Main

  • Atkins
    • Profile Fire Hydrant Notes

Utility Plan

  • Call before you dig warnings
  • Disclaimer
  • Legend
  • Abbreviations
  • Vicinity Map
  • North Arrow and bar scale
  • Water Quantities
  • Water Construction Notes
  • Legal Description
  • Benchmark
  • Basis of Bearing

Depth of Cover

Water Fitting Deflection

  • it appears the is NOT a deflection standard for fittings and appurtenances, so just use the deflection allowed for Ductile Iron Pipe (DIP)
  • UDACS Section 3.11.04.C.5
  • add 2.5 degree deflection at connections with fittings
  • Content Creator - Tee

Water Main Deflection

  • Max Joint Deflection 1 degree
  • UDACS 3.11.01.B.7 PolyVinyl Chloride (PVC) pressure pipe C-900 shall be deflected - at the joints only. (UDACS 3rd, p. 3-8)
  • UDACS Section 3.11.01.B.7
  • Civil 3D Deflect Pipe

Water Main Elbow Fittings

  • Civil 3D Elbow Fittings

Water Main Material

  • PVC Pressure Pipe at least Class 150 DR 18
  • UDACS Section 3.11.01 PVC
  • Civil 3D Pressure Pipe Catalog

Meter Design

  • Must have backflow behind the meter, Mao at LVVWD won't allow you to manifold the several meters so you can just use one large backflow
  • LVVWD Meter Manifold
  • Water Pipes Drafting

Water Tees and Crosses

  • Boulder City
    • 2.09.02 D Valve Location: Three valves will be used at each cross; two valves will be used at each tee. A maximum of three valves will isolate any leg of the water system. (Current Boulder City Addenda - UDACS)
  • Water Tees

Water Main Capping

  • UDACS 2010 Uniform Design and Construction Standards, 3rd Edition, 2010
    • Section 2.13 CAPPING - A cap or plug with blowoff assembly will be required on the ends of all newly installed mains in accordance with UDACS Plate 36.
    • UDACS Plate No 36
  • UDACS 2nd, section 2.10 and Plate 4A.

Water Valve Box

  • UDACS Plate No 39
    • UDACS 2010 Uniform Design and Construction Standards, 3rd Edition, 2010]]


  • Easement Research
  • “Easements, where identified and allowed by the Agency, are required whenever the water main, service lateral, meter, backflow assembly, or any associated appurtenances are not located in a public ROW. All easement locations shall be identified on the water plan, as well as any area(s) dedicated as public utility easements to be occupied by water facilities, to facilitate field verification.” (UDACS 3rd, 2.26.01.A Easements General Requirements)
  • Easement Size
  • LVVWD Easement Example

LVVWD Easements

  • Sharon Kennemer, LVVWD Principal Right of Way Agent,, Direct 702-862-3465, Cell 702-218-5366
  • Patrick Denison,

North Las Vegas Easements

  • Easement required for fire service RPDA but not for domestic RPPA
  • Lisa Burris, Real Property,

Clark County

  • Justin Sagers, Design & Construction Administrator,, Cell 702-610-6854, with Real Property Management has a process to get a signed interlocal agreement between the County and LVVWD

Hydraulic Analysis Report

0 - Utility Request

  • As-builts for existing facilities
  • Request existing water lines
    • City of North Las Vegas
      • Records Request for approved water plans and water as-builts
      • Records Request for Street Improvements, Flood Control Facilities, Grading Plans, Plan & Profiles, Cross sections/details, Drainage Study, Right-of-way documents, other (traffic study, geotechnical report)
      • NLV Facility Map
    • LVVWD takes 7-10 days (as-builts)
      • LVVWD RICKEN_7578 S general cadd year x
        • help email:
        • phone: 702-822-8518
      • Can I request a copy of the LVVWD Facility Map for the site? Ask for copy of screenshot used by engineer ( on POC request
      • Point of connection request (don't think it is needed for single family)
      • Record drawing request
    • City of Henderson takes 2 weeks

0 - General Info

  • requirements found in UDACS 2.03 Hydraulic Analyses
  • must provide two copies of the hydraulic analysis report to reviewing agency
  • each page of the submittal must be numbered

Submittal Process and Requirements

  • NLV - submit 2 copies of hydraulic analysis report with 2 copies of the Utilities Plan

1 - Report Cover

  • “The name, address, telephone number and fax number of the engineering consultant, developer, and developer's contact person must be identified on the cover of the report.” (UDACS, p. 2-4)

2 - Stamped Submittal Letter

  • Typically on company letterhead
  • “The hydraulic analyses must be signed and sealed by a professional engineer licensed in the State of Nevada.” (UDACS 2.03.02 - General, p. 2-4)

3 - Report

  • Name and version of hydraulic analyses software
  • Type of Project - as noted on the “Hydraulic Grade Line Request Form” which has a list of developments.
    • Single Family Residential
    • Residential Duplex & Triplex
    • Apartments, Condos, Townhouses
    • Mobile Home Parks
    • Hotels
    • Golf Course, Park, Open Spaces
    • Industrial Park (light industrial)
    • Commercial
    • Schools
    • Others

1.0 Introduction

2.0 Project Location and Description

  • Location of Project - see Appendix A-1 for map

3.0 On-Site Water Demands

  • Water Demand Calculator - used to determine GPM
  • Commercial (see Appendix A-4 Estimate of Water Demand). Note this is just the typical Commercial demand and will be different if you have a specific requirement, such as farm or green house and the use requires more water. So, on the Hydraulic Grade Line Request Form, requesting Maximum Daily Demand of 50 gpm instead of the A-4 estimate of 3.0 gpm, then on Peak Hour Demand want 75 gpm instead of the A-4 estimate of 4.6 gpm.
    • Maximum Day is 3.0 gpm/acre
    • Peak Hour is 4.6 gpm/acre
    • Fire-Flow Demand is 1500 gpm (see Appendix A-3 Fire-Flow Determination)

Water Meter Size

  • UDACS Table A - Domestic Water Meter Chart

Henderson Demand

North Las Vegas Demand

  • NLV Demand Flowrates

LVVWD Demand

Building Fire Sprinklers

  • Building fire sprinkler demand and onsite fire hydrant demand must be determined by the fire protection engineer
  • LVVWD Onsite Fire Flow
  • Mechanical Engineer
      • Lance Griffith,, mobile 702-400-1041, work 702-365-8273
    • Tal Harel Plumbing,
      • Evan Armstrong, 702-205-5918

Water Plan - Fixture Count

  • Fixture Count from West Baptist Church
  • KME Water Calculation

4.0 Off-Site Water Demands

  • Typically used for new development, look at the Land Use of the site to determine the offsite demand
  • Existing developments are already accounted in the model

5.0 Static Pressures

  • Water conversion: 1 psi = 2.31 ft of water
  • Static Pressure (psi) = (Pressure Zone - Finish Floor Elevation) / 2.31 ft of water
    • Finish Floor Elevation = elevation of the concrete utility pad the backflow preventers are installed on
  • If Static Pressure > 80 psi, then need to install a pressure reducing valve (see UDACS 2.01.02 and LVVWD High Water Pressure
    • “This property has static water pressure in excess of 80 psi. The Uniform Plumbing Code requires that individual, on-site (private), pressure-reducing valves (PRV) must be installed whenever the pressure exceeds 80 psi. PRV's are the Developer's responsibility, and will not be inspected or included in the acceptance of CNLV facilities.”
      • I believe LVVWD will accept and maintain PRV
      • I believe Henderson is same as NLV, PRV to be maintained by private property owner.
  • Static Pressure Test

6.0 Hydraulic Analysis using EPANET

  • Need 3 different EPANET files, 1-Max Day, 2-Peak Hour, and 3-Max Day + Fire Flow
  • Step 1 - Reservoirs - just enter the Total Head (HGL) as given by the Agency, see Appendix A-2. EPANET requires at least one reservoir to run analysis.
  • Step 2 - Junction/Nodes - enter surface elevations from the grading plan, not invert elevations of the pipe (which is often unknown). Site on Nellis and Cheyenne is very flat, so using the top of curb (TC) elevation of the existing fire hydrant for all junctions/nodes (i.e. water meter/RPPA and RPDA fire)
    • Enter TC elevation
    • Enter Base Demand
      • Water Demand, see City of North Las Vegas flow rates table, Appendix A-4 Estimate of Water Demand for Maximum Day and Peak Hour.
      • Water Meter Node = all domestic Water Demand * Lot Area
      • Water Meter Node (Max Day and Max Day + Fire Flow) = 3.0 gpm/acre * 2.11 acre = 6.33 gpm
      • Water Meter Node (Peak Hour) = 4.6 gpm/acre * 2.11 acre = 9.71 gpm
      • RPDA Node (Max Day + Fire Flow only, otherwise just 0 gpm) = 500 gpm
      • Fire Hydrant Node (Max Day + Fire Flow only, otherwise just 0 gpm) = 1000 gpm
      • All other Nodes/Junctions have 0 gpm for Demand
  • Step 3 - Pipes
    • enter pipe length in feet from the grading plan
    • enter pipe diameter in inches
    • Roughness is 120 (=12“ diameter) or 130 (=14” diameter) (see UDACS p. 2-6)
  • Step 4 - Pipe to Building
    • include onsite pipe to sprinkler and show the pressure at the proposed building
  • Lowest Pressure from EPANET (psi) - Max Pressure Loss from Meter (psi) - Max Pressure Loss from RPDA or RPPA (psi)
    • must be = 45 psi for static pressure (see UDACS p. 2-1)
    • must be = 40 psi for maximum day (see UDACS p. 2-1)
    • must be = 30 psi for peak hour (see UDACS p. 2-1)
    • must be = 20 psi for maximum day + fire flow (see UDACS p. 2-1)

7.0 Results

  • Summary table of EPANET analysis showing results of minimum and maximum pressures for maximum day, peak hour, and maximum day plus fire.

Export Files

  • EPANET Export

8.0 Conclusion and Recommendations

4 - Appendix A

A1 - Vicinity Map (Assessor's Parcel Map)

  • Example URL if you know the first 5 numbers of the Assessor Parcel Number (APN)
  • Adobe Acrobat 9 Professional
    • Make Acrobat 9 the default program to a open PDF (use Windows Explorer, right click to select a PDF, then Open With ? Choose default program…
    • Edit > Preferences > Internet category > uncheck <b>Display PDF in browser</b>
    • Edit > Preferences > TouchUp category > check <b>Enable Text Word Wrapping</b>
    • Comments > Comment & Markup Tools > Callout Tool to add callout showing the label PROJECT SITE
    • Print PDF using scale to fit option, remember Assessor Maps are 11×17 size, so want to scale to 8.5×11 so it easily fits in the report and most likely the reviewers won't even look at it anyway.
      • Printing Assessor Map on 8.5x11 paper

A2 - Agency Hydraulic Grade Line Request Form


  • New Development
    • Brian Coombs,, 702-267-2514
  • Water Demand Factors
    • Maylinn Rosales,, 702-267-5913
  • HGL/Point-of-Connection Requests
    • Mike Warnick,, 702-267-2533
    • Robert Woodson,, 702-267-2546
    • Richard Stoebner,, 702-267-2549


  • - POC requests and review of water network analysis
  • - Plans examiner, review meter sizes
  • - Secretary - Planning & Engineering Services
  • - GIS and Planning water lines
  • - Engineering supervisor
  • Debbie - in charge of the connection fees

North Las Vegas HGL Request

A3 - Fire-Flow Determination

International Building Code (IBC) - Types of Construction Definitions

International Fire Code (IFC) - Fire Resistance Rating

  • International Building Code 2012 - Types of Construction

International Fire Code (IFC) - Fire-Flow Requirements for Buildings

A4 Estimate Water Demand

A5 UDACS Table A

  • UDACS Table A - Domestic Water Meter Chart, p. 4-1
  • UDACS Table B - Fire Service Water Meter Chart, p. 4-2

A6 UDACS Table C

  • UDACS Table C - Backflow Prevention Assembly Characteristics, p. 4-3

5 - Appendix B - EPANET Reports

  • Recommend taking screen shots showing Network Schematic, Analysis Results Table - Nodes/Junctions, Analysis Results Table - Links

B1 Network Layout Map

  • Development Network Map

B2 EPANET - Network Schematic

  • EPANET - Add Notation Labels
  • Table - Nodes - Columns (Report > Options)
    • Elevation
    • Base Demand
    • Demand
    • Head
    • Pressure
  • Table - Links - Columns (Report > Options)
    • Length
    • Diameter
    • Roughness
    • Flow (GPM)
    • Velocity (fps)
    • Friction Factor

B3 EPANET - Max Day Analysis

  • EPANET - Max Day Analysis with Network Schematic

B4 EPANET - Peak Hour Analysis

  • EPANET - Peak Hour Analysis with Network Schematic

B5 EPANET - Max Day + Fire Flow Analysis

  • EPANET - Max Day + Fire Flow Analysis with Network Schematic


6 - Appendix C - Agency Requirements

C1 UDACS 2.03 Hydraulic Analyses Requirements

C2 City of North Las Vegas - Network Hydraulic Analysis Guidelines

C2 Las Vegas Valley Water District

Review Addendums

  • Submit two copies of addendum (including grading plan) along with red-lines.

Backflow Preventers

Pressure Reducing Valves

  • Backflow preventor at Owens and Lamb
  • Henderson PRV
  • Example PRV Plan
    • Henderson PRV Plan

LVVWD Large Backflow

  • LVVWD Large Backflow

Fire Hydrants

Fire Hydrant Spacing

Fire Department Connection (FDC)

  • A fire hydrant shall be within 100 feet of the FDC. Southern Nevada Consensus Fire Code 13.04.090. 2018 IFC SNFC with CLV Supplemental
    • C102.7 Distance to a Fire Department Connection (FDC). The maximum distance from a fire hydrant to a fire department connection (FDC) supplying fire sprinklers and/or standpipes shall not exceed 100 feet, as measured by an approved route. An approved route is defined as an unobstructed path of travel on which hose can easily be laid. Page 78


    • Alaskan Plumbing, Heating & Air Conditioning
      • Ask for Chad Dymon
    • Harel Plumbing and Heating
      • Ask for Tal Harel, 702-290-2122,
    • Larkin Plumbing
      • Ask for Wayne Larkin
    • Henderson list of backflow testing companies
      • request from Eugene “Gene” Bragazzi,, 702-267-2611
    • Flyer - Henderson Backflow Prevention
    • Research Henderson Permits for Backflow Inspections
    • staff does Backflow testing
    • LVVWD maintains RPDA unlike NLV or Henderson
    •, 702-258-3156

Evaporation Equation

  • E = a/b
    • a = 7.4PA(0.447W)^0.78
    • b = T + 459.67
    • Where
      • E = Evaporation Rate (gallons/day)
      • A = Pool surface Area (ft^2), e.g. 65'x20' = 1300 ft^2
      • W = Wind Speed Above Pool (mph), e.g. 3.76 mph
      • P = Water's Vapor Pressure (mmHG) at Ambient Temperature, e.g. 13.8
      • T = Temperature (F), e.g. 67 deg F
    • E = 378 GPD = 0.423 AFY


LVVWD Planning & Engineering Services Division

  • Brian Bowler,
  • Roger Jordan
    • Luke Fendrick, Plans Examiner, 702-822-8513,


Camrosa Water District


Civil Engineering Engineering - Computer Engineering - Electrical Mechanical Engineering

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