ESC2017 Changing Landscapes - Speakers

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Speaker Presentations

P As a follow-up to the conference, many presenters have greatfully offered pdf copies of their presentations. Presenters who have shared their presentations are identified by an astrix (*) next to the name of their presentation.

To view the pdf of the each presenters presentation please click on the plus (+) icon next to the speaker to display the link. ESCA BC appreciates our speakers' contributions to our onference and for those willing to share their presentations here.

In the Interest of professional courtesy and out of respect for copyright law, we would like to remind all viewers that these are shared for information purpose only. Please do not reproduce, in part or whole, without the express consent of the presenter.

This information will be avaliable until January 31st, 2018, after which point it will be moved to the member resources page.

Topics and Speakers

Successful erosion control and restoration of disturbed land requires a comprehensive and holistic approach. Those overseeing erosion control and revegetation efforts should integrate five fundamentals to ensure a path to success. Employing the discipline to work through the first three fundamentals –analyze soils, pick the right plant materials and select the most cost effective erosion control techniques, will lead a project in the right direction. Proper installation followed by maintenance practices will ensure your project is wrapped up as quickly and successfully as possible.

In 2017, FortisBC replaced 11 km of transmission pressure gas main as part of the Lower Mainland System Upgrade Project through the Cities of Surrey and Coquitlam. The many environmental challenges on the project included watercourse crossings, drill pits, storm water management, tight work spaces, and a highly visible work site. Hemmera was retained to provide permitting, environmental management and monitoring for the project.

Stormwater runoff contains TSS from sediment and lignin/tannins, oil and grease along with Total Petroleum Hydrocarbons (TPH), metals and pathogens. Removing these contaminants to low ppb levels using clean green sustainable technology is easily achievable. Metals are removed with HMR Media and TSS, O&G, TPH are removed with a biopolymer. TSS reduction to <10 NTU, metals reduction to 1 ppb..

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The Anionic Polyacrylamide Application Guide for Urban Construction in Ontario addresses product selection, documentation and reporting, safe handling, and spill response procedures. It also provides recommendations on design of erosion control, stormwater clarification, and pond de-mucking applications of anionic PAM. The presentation will discuss the content of the guide and literature findings on the nature, efficacy and safety of polymers for erosion and sediment control.

This presentation illustrates nuisance and/or persistent sub-structure flows running below the geotextile of traditionally designed hard armour manifests as erosion below the structure. The result is failed conveyance structures where failure is initiated in the first rainfall after the geotextile is placed and ultimately presents in five to ten years after continual structure weakening and erosion below the geotextile by sub-structure water flow.

This presentation provides an overview of the post-fire assessment, planning and mitigation process with site specific examples of the tools and techniques applied as well as a summary of the results of remediation efforts, lessons learned and a discussion of the appropriateness of the technologies as a function of the magnitude and complexity of the task at hand following wildfires.

Natural systems can be used to control erosion and to restore disturbed sites. By using natural processes, the cost of erosion control and restoration is minimized.

Chitosan Enhanced Sand Filtration has been used to treat billions of gallons of rain water in the past 15 years, to remove particulate, and now this technology is being used to remove metals as well. But what are the impediments to implementation in British Columbia. Lessons learned in Washington.

Construction activities expose soil to an increased rate of erosion and subsequent sedimentation which can impact property, human health, safety and the environment. The City of Calgary requires construction sites create an Erosion and Sediment Control (ESC) Plan that outlines how such adverse effects will be mitigated. Use of the Revised Universal Soil Loss Equation (RUSLE) has defined a soil loss tolerance, created a common language and changed to landscape.

Water generally runs downhill. Understanding, planning for and accommodating this simple fact of nature can determine success or failure of a construction project to prevent soil erosion and off-site discharge of sediment-laden water. The need for soil stewardship - and the erosion control best management practices that support it - is even more important during times of drought and above average precipitation.

Case studies of site restoration challenges and successful outcomes will be explored for sites that present significant restoration challenges faced by many project teams in todays environment.

Upon taking on any aspect of ESC for a Site; the person developing the ESC Plan, the developer/contractor implementing the ESC Plan, or the Environmental Monitor that oversees the effectiveness of the ESC measures, all need to understand the overall Stormwater Management objectives for the Site. With this understanding and communication with one another during all phases of design, construction, and monitoring can we ensure an effective Environmental Site Design that minimizes the impact of land development on water resources.

Green infrastructure (GI), a new form of sustainable stormwater management, is an integral part of the urban form and requires a different approach to construct. GI sites require attentiveness throughout the construction process as to location, intended function, protection from sediment clogging and over-compaction. Good GI construction means good on-site erosion and sediment control. This presentation will cover the right and wrong strategies for GI construction using real world examples.

Although the site conditions that influence erosion and sediment are dynamic, ESC is often handled using a static “one-size-fits-all” approach. A case study involving the multi-year development of a municipal airfield will demonstrate why developers should adopt a bespoke, adaptive approach that facilitates the selection of ESC measures best-suited to the site conditions and, through regular monitoring and feedback, alteration/enhancement of these measures to adjust to changing or unanticipated conditions.

This presentation will be on the introduction of a hemp fibre erosion control blanket. This erosion control blanket utilizes the hemp plants strong fibres, creating a non-woven 100% biodegradable blanket.

Stormtec will present case study of a recent project where soluble and particulate metals (As, Cu, Zn, Cr) in stormwater runoff were treated using a phased approach to meet BCWQGs for Protection of Aquatic Life. Phase I is a lower cost primary treatment using chemical precipitation. Phase II is a secondary treatment utilizing adsorbents. Delegates will be able to learn from Stormtec’s experience and apply the knowledge to their own water treatment challenges.

In a time where the expectations of various stakeholders in the Province is changing and the potential for several large projects to proceed is growing, this presentation will review what constitutes 'successful' environmental monitoring in regards to using a First Nations Partnership company, who is Haisla_Triton Limited Partnership, what has been our environmental monitoring scope of work on two key projects, how we determine that the work we have done is successful, and finally a review of what has worked (summary of successes) and things for Haisla_Triton and others to consider in the future for working on projects that involve various stakeholders.

The presentation provides an overview of TSS, the key test as per the ESC By-Law standards. The presentation will cover:

  • The sources of contamination
  • Chemistry
  • Analytical methods
  • The best sampling practices, sample handling and legal sampling requirements from the laboratory standpoint.

BC has been on the forefront of piloting green infrastructure in Canada but has struggled to make the technology an everyday practise. The completion of recent planning efforts are now propelling municipalities towards taking green infrastructure mainstream. This presentation provides several examples of how cities within southwestern BC are overcoming implementation challenges with regulatory, funding and planning efforts.

Low Impact Development, LID practices are being incorporated into many of today’s development projects. Protecting the post construction function begins with an understanding of how they work and how to make sure they are constructed properly and protected through final stabilization is increasingly more important. This presentation looks at the basics of LID elements from an erosion and sediment control perspective to ensure that they are built properly and function as intended long after project completion.