In recent times, many experts in the field have noted the implications of climate change on existing water sector infrastructure and the need for those in charge of such systems to make necessary changes, in terms of using advanced technology, as well as, being proactive to foresee what some of those changes will need to be, in order for persons depending on such systems to still have access to a reliable supply.
In a recent article by Laura Sanchez, Climate Change and System Complexity, published on 24th October, 2018, in the editor’s blog of the Water Efficiency magazine, she highlights how extreme weather changes and climate changes affected one ancient civilization and how modern systems may be at risk of history repeating itself.
You can also leave your comments after reading the article linked above.
Please see the details below to enroll in the above mentioned on demand webcast, which is available via Forester University at the cost of 79.00 (US dollars), as well as, to learn more about the presenters.
How effective are your methods for mitigating the effects of urban development on watershed and stream health? Due in part to the limited availability of direct hydrologic data, many mitigation practices use a single-event methodology to identify pre and post hydrology. While the current practice has been extended to include water quality discharge standards, as we’ve seen, this practice is limited by increasingly stringent infiltration targets AND the ability to accurately verify the condition and hydrologic response of a receiving stream.
So, how can you design and validate mitigation facilities that mimic real-world hydrology to adequately protect watershed and stream health? Join industry innovators Kim Stephens and Jim Dumont to explore Water Balance Methodology, a continuous simulation model that demonstrates both flood frequency and water balance using assessment of regional streamflow gauges, and how to modify the model at your site to include watershed development and a system of mitigation facilities. This model is an important first step towards changing the engineering standard of practice for municipal infrastructure by restoring hydrologic integrity and promoting sustainable, urban watershed systems.
In this webcast, we’ll begin by examining how the protection of watershed and stream health in the urban environment ultimately depends on maintaining the natural proportion of rainwater entering streams via three pathways: overland runoff, shallow interflow and deep groundwater flow. We’ll explore how Water Balance Methodology provides an effective way to assess potential impacts resulting from urban development by allowing you to accurately mimic streamflow and duration in your urban infrastructure design. We’ll then jump into how optimizing the size and operation of mitigation facilities in the model can be used to demonstrate the effectiveness of the mitigation plan in protecting the receiving stream. Finally, we’ll analyze how this approach provides a cost-effective methodology for creating watershed plans with optimized and effective mitigation facilities for a minimum total cost.
Attendees can expect the discussion and education of the following learning objectives.
Understand the basics of stream health and drainage design.
Learn how to apply hydrology and hydraulic principles to stream health.
Discover how to verify natural flow discharges and model verification.
Explore the potential effects of traditional drainage design criteria.
Analyze the benefits of including natural stream records in design.
Determine how to establish effective and achievable stream health objectives.
Train Your Team
Get the whole team trained! We offer additional savings if you register as a group. For group pricing information, contact us at email@example.com
Notes * Presentations are scheduled for approximately one hour with a 15-20 minute question and answer session to follow. Presentation may exceed scheduled time.
* Each state and certification agency has different requirements; it is your responsibility to know what they are. Note that 1 PDH = 0.1 CEU.
* Purchase of this course allows you access to the presentation(s) for 6 months from the order date.
Kim A. Stephens
Partnership for Water Sustainability in British Columbia
Engineering Applications Authority
Partnership for Water Sustainability in British Columbia
As employees of a public utility we all know the importance of providing customers with a reliable water supply. Yet, due to aged infrastructure, and a lack of funds to remedy this, a lot of water is lost due to leaks and illegal abstraction. In this article by Daniel P. Duffy, from the Water Efficiency Magazine (November – December 2017 Issue) non-revenue water is highlighted, together with, successful leak detection and audit methods.
Every drop of clean water is precious. Unfortunately, 30–50% of water is lost through aging infrastructure. And lost water equals lost revenue to the water service supplier. Water is lost through leaks and cracks in pipes and their fittings. Since most infrastructure is underground, it is virtually impossible to visually determine the location of these leaks unless the water has reached the surface (causing ponding and sink holes, structural damage, buckling pavement, etc.), and the exact location may be indeterminate. Leak detection requires special technologies that allow inspectors to precisely determine the location and severity of pipeline leaks. This is a field that continues to grow and advance by utilizing both established technology and by adopting emerging methods.
THE IMPORTANCE OF LEAK DETECTION Water lost through leaks, waste, or simple theft is referred to as non-revenue water, in that it fails to provide revenue to the water supplier because it never reaches its customers. These can be physical losses of water escaping the system, or unaccounted-for water that is not measured due to faulty meters and meters that have been tampered with, poor accounting and bookkeeping, or as a result of human error when reading and recording the water system flow meters. Available and emerging technologies are designed to detect and prevent physical water losses. These will continue over time until they are detected. The accumulation of losses over long durations can result in significant losses even from insignificant leaks. And if water can get out, impurities (soil, bacteria, organics, etc.) can get in and impair the quality of the water, even rendering it unfit to drink.
The pipelines that municipalities use to deliver drinking water to their residents take a beating. Large cities pump tens of millions of gallons of water to their customers every day. And many of the pipes that municipalities rely on to transport drinking water and treat wastewater are coated with decadesworth of grime and pollutants.
It’s little surprise then, that a growing number of municipalities face a problem: Their aging pipes are so filled with sludge and biofilm that it is reducing the speed at which they can pump water. This means that pumps have to work harder in these systems, increasing the energy costs and the expenses that these cities face when providing drinking water to residents and commercial buildings.
To continue reading the above article, published by Dan Rafter for Water Efficiency News, click the following link.
Do you think there is a need for such solutions locally? Would such solutions be applicable in terms of maintenance in the future? Comment below.
The town of Olds in Alberta, Canada, faced a daunting task. The public works and utilities department, serving the town of approximately 8,000, set out in 2007 to decrease the municipality’s total water usage by 10% by January 2017, using the amount of water it consumed in 2006 as a baseline.
To meet this goal, town officials knew that they would have to address the water that leaked out of Olds’ water delivery system each year. And in this challenge, Olds is far from alone.
According to information published by energy and water resource management company Itron, more than 32 billion cubic meters of treated water leak from urban water supply systems across the world every year. That is equal to more than $18 billion of non-revenue water.
To continue reading about what has been done in the town of Olds, as well as, what has been done by other utilities click here.