Stormwater Management - Design, Inspection and Operation/Maintenance of Flood, Water Quality, and Erosion Control Facilities

This workshop describes all aspects of stormwater management by assisting the designer to produce a cost effective design, with low maintenance cost & long-term trouble free operation. It will also assist those involved in the operation & maintenance...

Course Outline

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

• Select the most suitable design approach, including the best computer software for your project out of the available design approaches and practices that you study in this course
• Examine design applications in new developments and retrofitting into existing urban areas
• Apply new innovative emerging techniques for stormwater quantity, quality and erosion control
• Solve stormwater problems being exposed to them in the course under specialist guidance
• Adjust to your changing role and responsibility
• Employ cost effective operation and maintenance methods
• Use the best practices gleaned from the experience of national and international experts in municipal infrastructure
• Develop and implement a successful and affordable stormwater management program that meets the regulations and requirements for controlling quantity, quality and erosion

Description The success of long-term cost effective operation of a stormwater management facility depends on the 1) appropriate design, 2) an efficient inspection program undertaken during the construction phase and 3) the adoption of well organized operation and maintenance practices.  This workshop describes all the above aspects of stormwater management by assisting the designer to produce a cost effective design, with low maintenance cost and long-term trouble free operation.  Similarly, the workshop will assist those involved in the operation and maintenance program to understand the design principles, the required performance of the facility and to ensure that the BMP facilities are operating at their maximum efficiency over it useful life.

First the "big picture", is presented, why we need to control urban runoff and to protect our water courses.   The next group of topics describe the early considerations a designer must address, such as the selection of water quantity, quality, and erosion control criteria.   A detailed review of alternative Best Management Practices follows, presenting the latest North American and European practices developed over the past several decades, some more successful than others, including the more recently introduced Low Impact Development.  It will review most of these practices and will provide a clear guidance on the selection of the most appropriate alternative.  Special cases will be described, such as the selection of BMPs for redevelopments, retrofits and infilling.  The course will then review the steps involved in the design of wetponds, wetlands and grass swales, the most frequently used BMPs.   The next group of topics will present the various implementation tasks, such as inspection during and after the construction period, and the ongoing long-term operation/maintenance tasks. 

By participating in this workshop, you will receive an overview on the practical application of sound design of stormwater management techniques, and the equally important operation and maintenance tasks.    Case studies will be presented to demonstrate in very practical terms the pro's and con's of alternative strategies, the pitfalls that can be avoided, and the design features that characterize successful systems. You leave with the confidence that not only you understand the concepts but also you can apply the knowledge to your projects. Objective

To provide participants with a working knowledge of current methods for designing effective drainage systems that minimize their construction and maintenance cost.

Who Should Attend

Municipal engineers, designers, operation and maintenance staff, developers, planners, consultants, engineers, other technical personnel responsible for drainage and stormwater management facilities. This course is particularly suited to those who want a comprehensive review of both the design and implementation methods.

Special Feature
The course includes a copy of the Computer Application In Hydraulic Engineering text book by Bentley Institute Press and the following Haestad Methods Software on a CD ROM: FlowMaster, CulvertMaster, StormCAD, WaterGems, SewerCAD, PondPack, and SewerGems

Program Outline

Welcome, Introduction, Workshop Preview, Learning Outcomes and the Assessment Method

Overview - The Big Picture

1. Why Do We Need Stormwater Management?

• Effect of urbanization on: surface runoff, peak flow, volume and timing, surface water quality, groundwater quantity and quality, natural habitat, stream corridors
• Changes in hydrological cycle
• Degradation of receiving watercourses, erosion and sedimentation
• Changes in stream temperatures
• Current issues in controlling stormwater quantity and quality
  

2. Protection of Receiving Watercourses

• Flood hazards
• Flood plain delineation, choice of flood plain criteria
• Aquatic habitat protection
• Erosion, meandering
• Morphology
• Design of  "natural channels"

3. Selection of Design Criteria

• Post and pre - development criteria
• Flood and flood plain
• Water quality, fish and body contact recreation
• Erosion control
• Major - minor system
• Water balance, recharge
• Water temperature
• Effect of climate change

Alternative Best Management Practices

4. Review of Alternative Stormwater Water Management BMPs

• Source control: roof and foundation drains, permeable pavers, etc.)
• Conveyance controls, (swales, pervious pipes, etc.)
• End - of - pipe controls, (wet and dry ponds, underground tanks, wetlands, filters, infiltration facilities, separators, etc.)
• Good housekeeping and municipal practices, (land use restriction, litter control, recycling, waste control, street sweeping, road salt management, public education, etc.)
• Low impact developments, emerging technologies, new products
• Innovative landscape designs and use of natural systems for controls
• Recommended BMP Manuals

5. Recent Developments in the Design of BMP for Low Impact Developments

• Low impact developments, emerging technologies, new products
• Innovative landscape design: rain garden, bio-retention, permeable paving and green roofs
• Review of latest technologies, commercial products to control water quality

6. How to Select BMPs for Different Site Conditions

• Treatment trains
• Selection process, use of selection matrix
• Short and long - term costs

7. Special Cases: Redevelopment, Retrofits, and Infilling

• Stormwater management criteria
• Applicable practices
• Approach to retrofits

Design of Best Management Practices

8. Outline of Design of the More Frequently Used Best Management Practices

• Wet pond
• Wetland
• Grassed swale

9. Overview of most frequently used hydrology and hydraulic computer models

• Hydrology - single event: OTTHYMO , OTTSWM
• Hydrology - continuous simulation: HSPF,  QUALHYMO, SWMM
• Hydraulic: HEC - RAS, MOBED
• Less complex models: StormCad, FlowMaster, CulvertMaster, and PondPack

Inspection, Operation and Maintenance Practices

10. Implementation Plans

• Municipal plan review and one window approach
• Erosion and sediment control at construction sites
• Preparation of implementation plans
• Inspection

11. Operation and Maintenance of BMPs

• Municipal input during reviews of pond, wetland, swale, infiltration, porous pavement designs
• Erosion and sediment control at construction sites and inspection during construction
• Operation and maintenance tasks for source, conveyance and end-of- pipe facilities
• Preparation of municipal operation and maintenance plan
• Resources: budgeting, manpower, equipment, scheduling

12. Monitoring

• Objectives
• Programs for monitoring flows, water quality, aquatic habitat
• Parameters to be monitored, sampling, equipment
• Safety, and public perception
• Preparation of a four phase monitoring program

13. Legal Implications

• Common law, riparian rights
• Statute law: Federal and Provincial regulations, municipal by-laws
• Potential corporal and personal liabilities, nuisance, negligence
• Case study

14. Workshop

• Annual pollutant load estimates for pre and post-development conditions
• Selection of alternative BMPs, advantages and disadvantages, selection process

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

Faculty

Ivan Lorant P.Eng., is a Professional Engineer, and is the President of Lorant Consulting Ltd. Mr. Lorant has more than 40 years of experience in water resources engineering and has worked mostly in the consulting field in Canada and abroad. He presented numerous technical papers at conferences and workshops on stormwater management. As Project Manager he managed over 200 projects and assisted Provincial, Municipal governments and Conservation Authorities in the preparation of flooding, erosion, and water quality control policies and guidelines.

Additional Details

Pre-Requisites

Certificates offered

1.2 CEU / 12 PDH

Cancellation Policy

To withdraw from a course, you must send a request, in writing, with the official receipt to our office. Fifteen or more business days in advance: full refund less $50.00 administration charge. Five to fifteen business days in advance: non-refundable credit of equal value for any future EPIC seminar within one year. Credits are transferable within your organization. In case of an unexpected event occurring after this time, you may send someone else to take your place without any additional cost.

Map & Reviews

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Would have liked more interactive problem solving.

Reviewed by Allen A. 2011