G³⁶⁰ collaborator, Mercer University, recently announced the establishment of the Cecil Day Family Center for International Groundwater Innovation. The new center, led by Dr. Michael MacCarthy, will accelerate efforts in the Mercer On Mission program and the School of Engineering to provide access to clean water to the world’s most water-poor communities. The Center will focus on three core components – household self-supply, small community water systems and global groundwater innovation. The G³⁶⁰ group is excited to move into a new phase of collaborative research with Dr. MacCarthy and his group and congratulate them on this exciting news!
To learn more about the Cecil Day Family Center for International Groundwater Innovation read the full press release here.
Dr. Beth Parker was recently featured in Ground Water Canada Magazine after being interviewed on her vision for the on-campus Bedrock Aquifer Field Facility (BAFF). Funding was approved earlier this year, and the new, research-focused, educational facility will highlight groundwater and serve as a hub for the public and professionals alike.
Read the full Q-and-A with Dr. Parker on G³⁶⁰ and the BAFF here: https://www.groundwatercanada.com/q-and-a-with-beth-parker/
The College of Engineering and Physical Sciences (CEPS) at the University of Guelph recently featured G³⁶⁰ groundwater remediation research headed by Dr. Beth Parker, including team members Dr. Kari Dunfield and Dr. Philip Wanner. The article highlights how new multi-disciplinary methods provide seasonal data that can help protect groundwater using monitored natural attenuation (MNA). With MNA, a range of physical, chemical and biological processes can be used to naturally reduce (attenuate) contaminants, as demonstrated at a historic manufacturing facility in southwestern Ontario.
Read the full article on the CEPS website here and check out the CEPS Twitter feed to add to discussion on this topic.
See the 2019 journal article that inspired this highlight:
Wanner P, Aravena R, Fernandes J, BenIsrael M, Haack EA, Tsao DT, Dunfield KE, Parker BL. Assessing toluene biodegradation under temporally varying redox conditions in a fractured bedrock aquifer using stable isotope methods. Water Res. 2019 Nov 15. doi: 10.1016/j.watres.2019.114986.
We are pleased to announce the publication of a new article in Groundwater Monitoring and Remediation from the G360 Institute Team.
On methods for in-well nitrate monitoring using optical sensors.
MacDonald*, G., Levison, J., Parker, B.L.
The authors would like to acknowledge the Canadian Foundation for Innovation (CFI), Ontario Research Fund: Small Infrastructure, Ontario Research Fund Research Excellence Round 3 Award ORF-RE 03-061 (ORF RE-3), The Canadian Natural Sciences and Engineering Research Council (NSERC) and the University of Guelph School of Engineering for financial support of this research. Norfolk County, the Region of Waterloo and City of Guelph are acknowledged for providing access to wells/field sites. Bill Banks of Banks Groundwater Engineering Ltd. provided valuable technical input throughout the research and is gratefully acknowledged.
University of Guelph School of Engineering
Canadian Natural Sciences and Engineering Research Council
Small Infrastructure, Ontario Research Fund Research Excellence Round 3. Grant Number: ORF-RE 03-061
Canadian Foundation for Innovation (CFI)
Optical sensors are promising for collecting high resolution in-well groundwater nitrate monitoring data. Traditional well purging methods are labor intensive, can disturb ambient conditions and yield an unknown blend of groundwater in the samples collected, and obtain samples at a limited temporal resolution (i.e., monthly or seasonally). This study evaluated the Submersible Ultraviolet Nitrate Analyzer (SUNA) for in-well nitrate monitoring through new applications in shallow overburden and fractured bedrock environments. Results indicated that SUNA nitrate-N concentration measurements during flow cell testing were strongly correlated (R 2 = 0.99) to purged sample concentrations. Vertical profiling of the water column identified distinct zones having different nitrate-N concentrations in conventional long-screened overburden wells and open bedrock boreholes. Real-time remote monitoring revealed dynamic responses in nitrate-N concentrations following recharge events. The monitoring platform significantly reduced labor requirements for the large amount of data produced. Practitioners should consider using optical sensors for real-time monitoring if nitrate concentrations are expected to change rapidly, or if a site’s physical constraints make traditional sampling programs challenging. This study demonstrates the feasibility of applying the SUNA in shallow overburden and fractured bedrock environments to obtain reliable data, identifies operational challenges encountered, and discusses the range of insights available to groundwater professionals so they will seek to gather high resolution in-well monitoring data wherever possible.