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INSTRUCTOR: 
Mark Peterson, P.E.

Purpose and Background

Developing a model of a water distribution system can provide a very useful tool for evaluation of the existing system and proposed improvements and expansion. This course will provide an outline of the information needed to develop a model and provide instruction on how to input information into the EPANet software package to create the model. It will also explore the results of the analysis of a variety of scenarios typically evaluated.

Benefits and Learning Outcomes

Upon completion of this course, you will be able to:

• Understand the parameters necessary to develop a model of a water distribution system and where to obtain information on these parameters.
• Understand how to create a model using the EPANet software package
• Understand how to use a model to evaluate improvements to the existing system, including pipe replacement, pump station modifications and providing additional storage capacity
• Understand how to use a model to evaluate expansion of the existing system and what improvements need to be made to the existing system to support additional development.

Assessment of Learning Outcomes

Students' achievement of the learning outcomes will be assessed via a short post-assessment (true-false, multiple choice and fill in the blank questions).

Who Should Attend?

• Structural Engineers
• Civil Engineers
• Contractors and building officials

Outline

Data Requirements:

• Pipe System Information (locations, sizes, material types, pressure ratings, junction elevations)
• Demand Parameters (average day, peak day, residential, commercial, industrial, diurnal distribution)
• Storage Tank Parameters (diameter or depth/volume relationship if not circular, floor elevation, overflow elevation)
• Pump Station Parameters (pump curve, number of pumps, pump control parameters such as on/off settings)
• Treatment Plant Clearwell or Well Parameters (constant head?)
• Control Valve Parameters (PRV, altitude valve)

Data Input:

• Junctions, Pipes, Demands, Tanks, Pumps, Control Valves

Reviewing Results

• Steady State Conditions
• Time Period Simulations
• Fire Flow Conditions
• Chlorine Decay Simulations
• Surge?

Uses of models

• Evaluate impact of pipe replacement with larger pipes to improve fire flows or low-pressure conditions
• Evaluate pressures during peak day conditions to determine areas needing improvements
• Evaluate available fire flows for proposed new buildings, especially in commercial areas
• Evaluate locations for a new storage tank
• Evaluate impacts of new or larger pumps
• Evaluate impacts of proposed development.

How to Earn your CEUs/PDHs

This course is worth .7 CEUs /7 PDHs To receive your certificate of completion, you will need to complete a short on-line post-test and receive a passing score of 70% or higher within 30 days of the course.

How do I convert CEUs to PDHs?

1.0 CEU = 10 PDHs [Example: 0.1 CEU = 1 PDH]