Water Demand Analysis within the Pursat River Catchment

MK16 Fostering Evidence-based IWRM in Stung Pursat Catchment (Tonle Sap Great Lake)In order to address water resources issues and develop capacities for implementing IWRM, there is a need for better collaboration between sectors and use of scientific data in decision making. Collaborative and informed decision-making rely on better understanding of, and access to quantitative and qualitative research results. Multi-stakeholder Platforms (MSPs) are forums to share and discuss such research outputs with various government sectors and water users. This report contributes to the Stung Pursat MSP process by providing information about changes in water balance in Pursat. The objectives of the Water Demand Analysis within the Pursat River Catchment report are to: Present and compare the water balance in the Pursat catchment under two scenarios; a) natural scenario (absence of Dam No. 1, No. 3, and No. 5) and b) dam scenario (presence of Dam 1, 3, and 5); and Apply and critique th

DSTS and Modeling Tools Report

MK16 Fostering Evidence-Based IWRM in the Stung Pursat Catchment (Tonle Sap Great Lake) CambodiaDecision Support Tools (DSTs) have been developed by various organisations (government agencies, international organizations, NGOs, universities, consultancy companies and think tanks) to facilitate decision making around a number of issues, including water governance and management. There are arange of DSTs, distinguished by their function, quality of services (accuracy and precision), ease of use, time of application (project planning, implementation, monitoring, etc.), data requirements, data generated and other factors. The main objective of this analysis is to assess currently available and relevant decision support tools (DSTs), and to highlight the method of selecting most appropriate tool

Multi-stakeholder Platform: An innovative mechanism for promoting integrated decision making in the Stung Pursat catchment

MK16: Fostering Evidence-Based IWRM in the Stung Pursat Catchment (Tonle Sap Great Lake) CambodiaIntroduced as an innovation in the Stung Pursat catchment of Cambodia, a MSP was piloted to promote integrated water resource management (IWRM). The “Fostering-Evidence-based IWRM in Stung Pursat catchment, Cambodia project1 (MK 16)” supported three MSP sessions in Pursat, and brought-together over 40 participants from government (national, provincial, and municipal), civil society organizations (including academic institutions), and community-based natural resource communities

Working Paper on Population Growth and Natural Resource Pressures in Pursat Catchment

MK16 Fostering Evidence-based IWRM in Stung Pursat Catchment (Tonle Sap Great Lake)This project examined the linkages between population and demand for food and water. Cambodia, in general, and Pursat Province in particular, have a complex and interesting mosaic of demographic attributes and development issues. The Tonle Sap basin and Pursat catchment possess the country’s largest potential water resources. These resources have the ability to support on-going economic development, including irrigation and agricultural production, fisheries and aquaculture, energy and forest products, navigation and other modes of transport, domestic and industrial water use and tourism

Report on Conflict Analysis and Power Relations in Pursat Catchment

MK16: Fostering Evidence-Based IWRM in the Stung Pursat Catchment (Tonle Sap Great Lake) CambodiaThe MK16 report analyses stakeholder roles, relationships, and views on water resources management in Cambodia in general, and Pursat specifically, for developing good IWRM structures that incorporates a shared understanding of the reality and complexity of different stakeholder interests and relationships. The analysis is designed to examine the degree of consistency or disparity between different stakeholders, and between formal stakeholder roles and actual practices.The Conflict/Difference and Power Relation Analysis in Pursat Catchment addresses the following research questions: 1. What are the key stakeholder roles, relationships, and perceptions in existing water governance arrangements, and how consistent are these perceptions among different stakeholders at different levels? 2. What are the consistencies and inconsistencies

Decision Support Tools and Modeling Tools Report

MK16: Fostering Evidence-Based IWRM in the Stung Pursat Catchment (Tonle Sap Great Lake)This report presents various decision support tools (DSTs) and modeling techniques for facilitating decision-making around water resource management. The objective here is to assess currently available and relevant DSTs, and to highlight the method of selecting most appropriate tool

Post-Horse River Wildfire Surface Water Quality Monitoring Using the Water Cytotoxicity Test

Version 1.0 - External Review Draft. Supporting Dataset can be found at: Kinniburgh, David; Huang, Dorothy; Moe, Birget; Dey, Indranil; Luong, Jennie; Xie, Li; Tesfazgy, Milly; Demofsky, Paige; Parmentier, Spencer; Gabos, Stephan; Zhang, Weiping; Reichert, Megan; Wang, Nina Ching Yi; Ellehoj, Erik; Hatfield Consultants, 2023, "Dataset for: Post-Horse River Wildfire Surface Water Quality Monitoring Using the Water Cytotoxicity Test", https://doi.org/10.5683/SP3/ICGLUE, Borealis, V1.The 2016 Horse River wildfire had a significant environmental impact on the Regional Municipality of Wood Buffalo (RMWB) in Northern Alberta, with a burn area exceeding 580,000 hectares. To understand the impact of this unprecedented event on water quality in the RMWB, water samples were collected from surface waters, drinking water treatment plants, wastewater treatment plants, and taps over the three-year period immediately proceeding the wildfire, beginning in May 2017. Samples were collected from sites directly impacted by the Horse River wildfire (Fort McMurray), as well as sites upstream (Athabasca) and downstream (Fort McKay, Fort Chipewyan) from the impacted area. Each water sample was tested using the cell-based water cytotoxicity assay, an in-house developed bioassay with quality control criteria and previous application to environmental testing. The underlying technology of the assay allows for non-invasive and continuous monitoring of human HepG2 cells, providing more human health relevant toxicity information than traditional assays with non-mammalian targets. Comparative toxicity values incorporating both concentration and temporal cellular response data were determined for each sample, allowing for the identification of trends across geographic location, source (surface, treatment plant, tap), and time. Complementary chemical analysis, including routine water chemistry and trace element analysis, was also performed to evaluate chemical components that may have influenced the measured cellular response and to observe trends in contaminant concentrations across time and sampling location. The surface water samples with the highest measured cytotoxicity were collected in 2017 from Fort McMurray, which was directly impacted by the Horse River wildfire. Sites located further downstream in Fort McKay and Fort Chipewyan were less cytotoxic, indicating dilution may have impacted the distribution of the wildfire contaminants. Trace chemical analysis revealed elevated concentrations of sixteen trace elements in these samples, which were highest in samples from the impacted area and lower in sites downstream. A second spike in toxicity was observed in many surface waters and drinking water source locations in 2019, which may reflect other wildfire events that occurred in the province that year. Among the wastewater treatment plants evaluated, all four facilities demonstrated effective treatment across their treatment streams, but the effluent from Fort McMurray, the only facility to utilize clarifiers, was the least cytotoxic. Exceedances of Canadian drinking water guideline values were evaluated in all sample types. Linear regression analysis found positive correlations between 1) concentrations of routine testing parameters and cytotoxicity in wastewater influent and 2) concentrations of trace elements and cytotoxicity in surface and source waters. Many samples containing trace amounts of targeted chemicals still presented with high cytotoxicity, indicating that untargeted substances or mixture effects impacted the cellular response and bioassay testing can complement traditional chemical analysis approaches for environmental monitoring. The water cytotoxicity assay provides numerous advantages, including limited sample preparation, small sample volume requirements (< 10 mL), and simple testing procedures. The testing method is also data rich, providing quantitative information that can be used to compare samples exhibiting low or high cytotoxicity. The results of this three-year investigation indicate that the water cytotoxicity assay has strong potential for application to routine environmental monitoring (to complement chemical-based monitoring programs), and to identify high toxicity samples that require further assessment/remediation as part of the investigation of emergency situations (e.g. an industrial spill).Othe