TRAINING.

Overview

After participating in this course, you will be able to:

• Analyze existing systems for any possible problems, maintenance and rehabilitation
• Recognize the numerous issues to consider when planning sewer and stormwater drainage systems at a given site
• Design sanitary sewer and stormwater drainage systems to meet given planning objectives

Description
Eighty percent of a municipality’s problems are caused by twenty percent of its sanitary sewers and stormwater drainage systems. The best way to avoid future problems is to pay greater attention to them during the design phase. This three-day workshop is aimed at those who want to hone their skills in sanitary sewer and stormwater drainage systems design, and stormwater management.

In a workshop setting, under the guidance of your instructor, you will complete a sanitary sewer and stormwater drainage system design and use a case study to discuss and develop a plan to mitigate the environmental impact caused by urban development and the management of stormwater.

Course Outline:

• Sanitary sewer system
• Planning for a sanitary sewer system
• Sanitary sewer system design
• Sewer maintenance and rehabilitation
• Hydrology and hydraulics - a review
• Estimating stormwater runoff
• Stormwater drainage system
• Stormwater impact mitigation
• Workshop detention pond design
• Sanitary sewer and pump stations

Who Should Attend
Consulting Engineers • Municipal Engineers • Civil Project Engineers • Construction Managers • Engineering Field Managers • Works Engineers • Public Works Directors • City Engineers • Superintendents of Operations • Wastewater System Managers • Safety Inspectors and Procurement Officers • EITs • Technicians and Technologists • Sewer Construction Contractors

Special Features & Requirements
The course notes will be provided in electronic format.

Please download and install the following information:

• Environment Canada databases are available through this link https://climatedata.ca/explore/variable/?var=idf/
• Environment Canada stream gauging database HYDAT: https://www.canada.ca/en/environment-climate-change/services/water-overview/quantity/monitoring/survey/data-products-services/explorer.html

Please test the installed software. When it opens do you see a map of Canada with a lot of green dots? - If yes, then you have been successful. - If no, then please open a File Explorer and go to the folder where the EC Software was installed. Typically this will be C:/Program Files (x86)/EC/ECDataExplorer/Support. In this folder will be a program from Microsoft, AccessRuntime.exe. Please run this program to install a Microsoft Access Database viewer that is used by the Environment Canada Data Explorer. Test the Data Explorer again to confirm that the map of Canada and the green dots appear. If they appear the program has been successfully installed.

• IDF Data - Environment Canada has made some changes to the IDF data. Here is their latest set of instructions. Note for everyone, that the Google App is no longer available and that the link as shown should be used to access the information. -Instructor suggests that the link be placed on the desktop to allow for easy access.
• Stream Gauging software. Please test the installed software. When it opens do you see a map of Canada with a lot of green dots? - If yes, then you have been successful. - If no, then please open a File Explorer and go to the folder where the EC Software was installed. Typically this will be C:/Program Files (x86)/EC/ECDataExplorer/Support. In this folder will be a program from Microsoft AccessRuntime.exe. Please run this to install a Microsoft Access Database viewer that is used by the Environment Canada Data Explorer. Then test the Data Explorer again to confirm that the map of Canada and the green dots appear. The program has been successfully set up.

Please note: You can check other time zones here.

Syllabus

Day I

Sanitary Sewer System

Planning For a Sanitary Sewer System

• Planning objectives
• Layout objectives

Sewer Hydrology and Hydraulics - A Review

• Gravity flow in pipes
• Hydraulic gradient calculations
• Non-uniform open channel flow
• Computer applications in hydraulics
• Hydrology
• The hydrologic cycle
• Rainfall and surface water

Sanitary Sewer System Design

• Peaking factors
• Minimum and maximum velocities
• Self-cleansing velocities
• Minimum pipe size/slope
• Cleansing velocity
• Capacity design
• Infiltration
• Sewer pipes
• Separation of water main and sewers
• Optimum bedding conditions
• Cover
• Manholes
• Loading calculations for various types of land use

Sanitary and Pump Stations

• Need for pump stations
• Site selection and other considerations
• General pump station design
• Wet well design
• System head analysis and pump selection
• Force main design

Sewer Maintenance and Rehabilitation

• Sewer problems
• Critical sewers
• Planning investigation
• Assessing the system condition

Workshop I - Design of a Sanitary Sewer
Participants will work on a design exercise

Adjournment

Day II

Stormwater Drainage System

Drainage and Stormwater Design Criteria

• Standards of Practice are changing over time
• Flood control risks and liability
• Water quality control
• Erosion control
• Volume control and water balance approach
• Climate change and adaptation considerations

Hydrology Overview

Rainfall Analyses

• Storm distribution in time
• Historical storms
• Storm frequencies
• Design storms
• Flood frequencies

Time of Concentration - Review of Design Equations & Selection

• Bransby Williams Equation
• Kirpich Equation
• Airport Formula

Hydrology - Methods of Computing Runoff & Design Flows

• Computer model and data input
• Runoff coefficients
• Hydrograph Method
• Estimating discharge using recorded stream flow

Hydraulic Design of Open Channel Flow

• Manning's Equation
• Stable Channels
• Composite Channels
• Triangular Channels & Gutters
• Closed conduits

Workshop II - Design of Stormwater Drainage System
Participants will work on a design exercise

Adjournment

Day III

Stormwater Impact Mitigation

How to Select Stormwater Best Management Facilities

• Major and minor system design
• A review of the most frequently used control practices
• Review of latest technologies, (porous pavement, green roofs, bio-retention, etc.)
• Green Stormwater Infrastructure / Low-Impact Development
• Regulatory requirements for impact mitigation
• Water Balance Methodology background and development
• Numerical calculations and analysis methodology
• Computer modelling and input parameters
• A case study of a development with mitigation alternatives

Water Quality

• Water quality requirements
• Sediment buildup and wash off
• Sediment pond design and performance

Detention Pond Design

• Detention pond design basics
• Detention pond modelling concepts
• Components of stormwater facilities
• Routing data: storage and hydraulics relationships
• Inlet and outlet design

Workshop III - Design of Mitigation System
Participants will work on a design exercise

Questions and Answers - Feedback to Participants on Achievement of Learning Outcomes

Instructor

Nav Sandhu, P.Eng.

Nav Sandhu, P.Eng., is a Senior Water Resources Engineer with 20 years of experience. He has extensive experience in stormwater management and drainage planning and design throughout Canada, ranging from servicing /planning studies to detailed design of complex systems. His stormwater infrastructure design experience includes storm sewer systems, culverts, above and below ground detention and water quality facilities, diversion structures, control and outfall structures, infiltration systems, rip-rap protection works, instream rehabilitation works. He’s also experienced in base-flow augmentation, source control/rainwater management and other LID systems-relatively new techniques that support sustainable design.

His stormwater engineering knowledge, coupled with municipal, and development, and highway experience, makes him an excellent resource for a range of clients. He has also provided expert opinion and reports or legal proceedings related to drainage throughout BC.