Monthly Meetings
See below for our monthly board meeting and our monthly technical speaker.
Monthly Board Meeting
Monday, March 11, 2024
1:30 - 3:00 pm
Virtual Only
Video call link: https://meet.google.com/adu-hmxv-xye
All members are welcome to join the board meeting. Meeting minutes are posted online here.
Monthly Member Meeting
Wednesday, March 20, 2024
12:00 - 12:10 pm: Announcements
12:10 - 1:00 pm: Presentation
This meeting will be virutal only.
Video call link: https://meet.google.com/gcf-duea-qzx
Or dial: (US) +1 417-761-8465 PIN: 194 527 122#
More phone numbers: https://tel.meet/gcf-duea-qzx?pin=2502518409348
Speaker: John Sankey
Multi-port Monitoring and Sampling - Options, Techniques, and Lessons Learned
This cast provides an introduction to the use, advantages, and limitations of Multi-Level Groundwater Sampling Systems; including deep systems for assessing groundwater hydraulics and quality. Case studies of applications will be provided, covering how the systems are installed, how they work, and options for sampling. Multi-port monitoring and sampling can provide multiple types of data resulting in a valuable base of hydrogeologic information such as:
- Pressure Profiles – information on vertical gradients and permeability contrasts.
- Pressure vs. Time – information on long or short-term water level trends, frequency effects (such as earth tides and sea tides), and observation of pumping tests.
- Hydraulic Tests – perform single-zone tests through measurement and/or pumping ports, vertical-interference tests between zones, and pulse-interference tests along or between wells.
- Test results can be used to calculate permeability and construct a profile of permeability vs. depth which can be valuable for modeling.
- Water quality data can be plotted as a vertical profile of concentration vs. depth and can also be plotted vs. time, providing important insight into the hydrogeologic behavior of the site.
Multi-port well data has been demonstrated to be solidly defensible, providing the best foundation for predictive modeling related to remedial or resource management decisions.
John Sankey is a solutions engineer for True Blue Technologies. He holds a degree in Mechanical Engineering from Queen’s University in Kingston, Ontario. He sits on the steering committee for groundwater Sampling & Monitoring Symposiums, which focuses on monitoring groundwater so that in situ remediation is planned well. He has been in the groundwater industry for 26 years and in 2003 started True Blue Technologies, a business dedicated to providing engineering, technical support and business development for technologies in groundwater remediation and characterization. After work, John is the “snowboard” trainer for the Disabled Skiing Association of BC and co-coordinates a small adult co-ed hockey league.
Members: To view recordings of previous meetings, please login to your member portal. If you have trouble logging in, please contact info@CGWA.co.
Continuing Education Certificate for the March 2024 Meeting
Please email the completed form to info@CGWA.co for certification of form.