1) The document outlines the progress and timeline of Rahnum Tasnuva Nazmul's MPhil research project studying the spatial and temporal variation of water quality parameters in Jerrabomberra Wetlands in Australia.
2) The research aims to fill data gaps and provide maps of water quality parameters to the wetland's management authority.
3) Preliminary results show temporal variations in electrical conductivity, pH, total phosphorus, and dissolved oxygen at one study location within the wetlands.
This document summarizes research assessing the performance of natural wetlands in treating domestic wastewater effluents in northern Canada. It finds that wetlands provide treatment benefits and removal of contaminants like BOD, ammonium, phosphorus and pathogens. Predictive tools like SubWet 2.0 were developed to model treatment processes and allow wetlands to be managed as part of a hybrid wastewater treatment strategy along with lagoons. The research addressed gaps in understanding of wetland treatment performance in cold climates and developed sampling protocols and management tools to overcome regulatory challenges and better integrate wetlands into wastewater treatment planning.
Wetlands are providing a wastewater treatment benefit in cold climates. Sampling protocols and predictive tools exist. Wetlands could be part of a hybridized wastewater treatment strategy in northern Canada.
The water chemistry of two Appalachian streams, Little Tumbling Creek (LTC) and North Fork Stony Creek (NFSC), was studied to develop acid mitigation plans. Both streams have low pH and buffering capacity due to geology with few minerals. LTC was treated with limestone, increasing pH and buffering slightly, but not to targets. Additional limestone of varying sizes is recommended. NFSC needs similar treatment, and 100 tons of limestone is calculated to offset acidity based on LTC results. The goal is to improve water chemistry and reestablish aquatic life in both streams.
1) Electrokinetically-enhanced bioremediation (EK-BIO) is being used to distribute lactate amendments and dechlorinating biomass throughout a treatment area contaminated with PCE DNAPL in low-permeability clay till.
2) After 1.5 years of operation, complete dechlorination of PCE to ethene has been observed across the treatment area as confirmed by both groundwater and soil core samples.
3) Lactate distribution and increasing levels of dechlorinating bacteria (vcrA genes) throughout the treatment area have enabled effective bioremediation of the PCE DNAPL.
This document discusses environmental flows in Texas. It provides a historical overview and outlines the paradigm shift that occurred with the passage of Senate Bill 1 in 1997, Senate Bill 2 in 2001, and Senate Bill 3 in 2007. These bills required the Texas Commission on Environmental Quality to adopt rules related to environmental flows and establish standards and procedures. The document then summarizes key aspects of the administrative code related to environmental flows, components of instream and estuarine freshwater inflow regimes, required work plans, funding and priority projects from 2014-2015 and 2016-2017, and implementation requirements regarding permit adjustments.
Assessing the Ability of Nitrogen Isotopes to Distinguish Ammonia Sources Aff...LPE Learning Center
Proceedings available at: http://www.extension.org/67707
Extensive evidence has shown that Rocky Mountain National Park (RMNP) has undergone ecosystem changes due to excessive nitrogen (N) deposition. Previously, the Rocky Mountain Atmospheric Nitrogen and Sulfur (RoMANS) study was conducted to identify the species of N that deposit in RMNP. Results from the RoMANS study showed that reduced N contributions from within Colorado were 45% and 36% for the spring and summer, respectively. There is still much uncertainty as to how much each source within Colorado contributes to ammonia deposition in RMNP. The major goal of this study is to determine whether the isotopic signature of nitrogen can be used as a tracer for ammonia released from sources within Colorado into RMNP. Ammonium samplers were deployed in May of 2011. All samples were collected using passive samplers, Radiellos, deployed for two week and monthly integrations periods. Samples were collected from confined animal feeding operations (beef production), dairies, wastewater reclamation, urban, cropland and RMNP. Sample locations were chosen based its proximity in comparison to RMNP and the availability of meteorological data. The collected ammonia was analyzed using Ion Chromatography, and then diffused onto filters or oxidized for isotopic analysis. Additionally, soil emission studies (grasslands and forests) and weekly wet deposition were collected at two sites varying in elevation in RMNP. Results thus far have shown that wet deposition in the park was similar to previous years based on the amount of precipitation and N deposition. Ammonia isotopic data showed that some sources are significantly different than others, such as wastewater reclamation, dairies, and beef production. However, cropland sources did not significantly differ from dairies and beef production.
1) The document discusses water quality and quantity monitoring in the UK. It outlines several national monitoring programs including the National River Flow Archive and National Groundwater Level Archive.
2) It also discusses water quality monitoring under the European Water Framework Directive, which aims to achieve good ecological status in surface waters. Monitoring includes biological, hydrological, and physicochemical indicators.
3) The document presents several innovations in water quality monitoring, including using remote sensing to monitor phytoplankton and harmful algal blooms, citizen science programs, sensor networks, and environmental DNA analysis. These innovations can provide more spatially and temporally extensive data to better assess water quality.
This document summarizes a study assessing the surface water quality of Perumbakkam Lake in Kanchipuram district, South India using Geographic Information Systems (GIS). 15 water samples were collected from locations around the lake and analyzed for physicochemical parameters like pH, alkalinity, hardness, chlorides, TDS, fluoride, iron, and ammonia. The results were mapped spatially using GIS to analyze the spatial variation in water quality. Most parameters were within permissible limits except for high TDS levels at some locations, possibly due to industrial and domestic waste discharge. The study aims to help monitor water quality and identify sources of pollution impacting the lake.
This document summarizes research assessing the performance of natural wetlands in treating domestic wastewater effluents in northern Canada. It finds that wetlands provide treatment benefits and removal of contaminants like BOD, ammonium, phosphorus and pathogens. Predictive tools like SubWet 2.0 were developed to model treatment processes and allow wetlands to be managed as part of a hybrid wastewater treatment strategy along with lagoons. The research addressed gaps in understanding of wetland treatment performance in cold climates and developed sampling protocols and management tools to overcome regulatory challenges and better integrate wetlands into wastewater treatment planning.
Wetlands are providing a wastewater treatment benefit in cold climates. Sampling protocols and predictive tools exist. Wetlands could be part of a hybridized wastewater treatment strategy in northern Canada.
The water chemistry of two Appalachian streams, Little Tumbling Creek (LTC) and North Fork Stony Creek (NFSC), was studied to develop acid mitigation plans. Both streams have low pH and buffering capacity due to geology with few minerals. LTC was treated with limestone, increasing pH and buffering slightly, but not to targets. Additional limestone of varying sizes is recommended. NFSC needs similar treatment, and 100 tons of limestone is calculated to offset acidity based on LTC results. The goal is to improve water chemistry and reestablish aquatic life in both streams.
1) Electrokinetically-enhanced bioremediation (EK-BIO) is being used to distribute lactate amendments and dechlorinating biomass throughout a treatment area contaminated with PCE DNAPL in low-permeability clay till.
2) After 1.5 years of operation, complete dechlorination of PCE to ethene has been observed across the treatment area as confirmed by both groundwater and soil core samples.
3) Lactate distribution and increasing levels of dechlorinating bacteria (vcrA genes) throughout the treatment area have enabled effective bioremediation of the PCE DNAPL.
This document discusses environmental flows in Texas. It provides a historical overview and outlines the paradigm shift that occurred with the passage of Senate Bill 1 in 1997, Senate Bill 2 in 2001, and Senate Bill 3 in 2007. These bills required the Texas Commission on Environmental Quality to adopt rules related to environmental flows and establish standards and procedures. The document then summarizes key aspects of the administrative code related to environmental flows, components of instream and estuarine freshwater inflow regimes, required work plans, funding and priority projects from 2014-2015 and 2016-2017, and implementation requirements regarding permit adjustments.
Assessing the Ability of Nitrogen Isotopes to Distinguish Ammonia Sources Aff...LPE Learning Center
Proceedings available at: http://www.extension.org/67707
Extensive evidence has shown that Rocky Mountain National Park (RMNP) has undergone ecosystem changes due to excessive nitrogen (N) deposition. Previously, the Rocky Mountain Atmospheric Nitrogen and Sulfur (RoMANS) study was conducted to identify the species of N that deposit in RMNP. Results from the RoMANS study showed that reduced N contributions from within Colorado were 45% and 36% for the spring and summer, respectively. There is still much uncertainty as to how much each source within Colorado contributes to ammonia deposition in RMNP. The major goal of this study is to determine whether the isotopic signature of nitrogen can be used as a tracer for ammonia released from sources within Colorado into RMNP. Ammonium samplers were deployed in May of 2011. All samples were collected using passive samplers, Radiellos, deployed for two week and monthly integrations periods. Samples were collected from confined animal feeding operations (beef production), dairies, wastewater reclamation, urban, cropland and RMNP. Sample locations were chosen based its proximity in comparison to RMNP and the availability of meteorological data. The collected ammonia was analyzed using Ion Chromatography, and then diffused onto filters or oxidized for isotopic analysis. Additionally, soil emission studies (grasslands and forests) and weekly wet deposition were collected at two sites varying in elevation in RMNP. Results thus far have shown that wet deposition in the park was similar to previous years based on the amount of precipitation and N deposition. Ammonia isotopic data showed that some sources are significantly different than others, such as wastewater reclamation, dairies, and beef production. However, cropland sources did not significantly differ from dairies and beef production.
1) The document discusses water quality and quantity monitoring in the UK. It outlines several national monitoring programs including the National River Flow Archive and National Groundwater Level Archive.
2) It also discusses water quality monitoring under the European Water Framework Directive, which aims to achieve good ecological status in surface waters. Monitoring includes biological, hydrological, and physicochemical indicators.
3) The document presents several innovations in water quality monitoring, including using remote sensing to monitor phytoplankton and harmful algal blooms, citizen science programs, sensor networks, and environmental DNA analysis. These innovations can provide more spatially and temporally extensive data to better assess water quality.
This document summarizes a study assessing the surface water quality of Perumbakkam Lake in Kanchipuram district, South India using Geographic Information Systems (GIS). 15 water samples were collected from locations around the lake and analyzed for physicochemical parameters like pH, alkalinity, hardness, chlorides, TDS, fluoride, iron, and ammonia. The results were mapped spatially using GIS to analyze the spatial variation in water quality. Most parameters were within permissible limits except for high TDS levels at some locations, possibly due to industrial and domestic waste discharge. The study aims to help monitor water quality and identify sources of pollution impacting the lake.
- Mark Saadeh is a hydrogeologist and water resources consultant with over 20 years of experience in Lebanon. He has worked on projects for organizations such as the Litani River Authority, the American University of Technology, and Associated Consulting Engineers.
- He holds a PhD in hydrogeology from RWTH Aachen University in Germany and teaches part-time at the American University of Technology and Holy Spirit University of Kaslik.
- His areas of expertise include hydrogeology, contamination hydrology, water quality monitoring and management, wastewater treatment, and environmental impact assessments. He has published several papers on topics related to groundwater resources and quality in Lebanon.
This document summarizes a workshop on improving freshwater monitoring frameworks in northwest India. It discusses current groundwater quality monitoring efforts and gaps. Key issues include increased pollution levels, falling water levels, and a lack of comprehensive and high-resolution spatial monitoring of parameters like heavy metals. The document outlines the need to better understand recharge processes, water quality impacts, and the properties of groundwater systems through improved monitoring protocols. Case studies from the region are proposed to help address questions around these issues and make recommendations to improve water resource management.
The document discusses the importance of monitoring land-ocean carbon fluxes at a pan-European scale. It notes that while there is a significant amount of existing data on carbon fluxes, the data is scattered and not standardized. The document recommends establishing a coordinated monitoring network that builds on existing water quality monitoring networks to regularly measure carbon and other parameters in Europe's major rivers, lakes, and coastal waters. Targeted process studies and numerical modeling could help extrapolate the monitoring data and further scientific understanding of carbon fluxes across the land-ocean continuum.
Groundwater and River Water Interaction on Cikapundung River: Revisited (ICMN...Dasapta Erwin Irawan
The interaction between groundwater and Cikapundung river water has not changed significantly in 16 years of period. This paper revisit the similar research based on 43 measurement points: 13 dug wells, 2 springs, and 24 river, distributed along the riverbank at Curug Dago to Batununggal segment. The field measurements were taken in rainy season of April to May 2014 using portable instruments. Six parameters were measured: water level, temperature, total dissolved solids (TDS), dissolved-oxygen (DO), and pH. The new model is unable to detect significant change in water flow, however it finds two local anomalies in Dago Pojok and Cikapayang area. Both locations show local drawdown circle which can induce influent stream in overal effluent environment. Moreover, water quality parameters indicate mixing processes between groundwater and river water, with erratic pattern both in effluent and influent stream. Also some DO and TDS readings exceed the permissible limit. These values suggest a lifted groundwater mineralization from organic and non-organic sources and change of chemical stability. The source of contamination is still under further examination.
Steve Davis - Western Lake Erie Basin Nutrient Reductions: Goals And Programs...John Blue
Western Lake Erie Basin Nutrient Reductions: Goals And Programs To Get There - Steve Davis, from the 2018 Conservation Tillage and Technology Conference, March 6 - 7, Ada, OH, USA.
More presentations at https://www.youtube.com/channel/UCZBwPfKdlk4SB63zZy16kyA
This document discusses technical challenges in meeting phosphorus reduction goals in agricultural watersheds that drain into Lake Erie. It provides data on phosphorus levels in tributaries before and after targets were set to reduce phosphorus by 40%. The document also examines phosphorus sources, pathways, and the impacts of various conservation practices. Modeling shows that while individual practices may help reduce erosion, they do little to limit dissolved phosphorus in tile drainage, which accounts for a large portion of the phosphorus load. Newer approaches that target tile drainage and in-stream retention are proposed to help meet large-scale phosphorus goals.
This work has sought to answer how global environmental change affects the concentration of nutrients in Mediterranean rivers. By means of a modeling effort using data collected by water agencies, this work has contributed to the knowledge of the relevant factors that drive nutrient dynamics in Mediterranean rivers, and how these change in time and space. Furthermore, it has clearly shown the potential modeling and time-series analysis offer to river scientists and managers.
This PhD thesis evaluates the water quality of six rivers flowing into Lake Sevan using various indices and develops a new classification system. The aim is to assess factors affecting water quality, define pollutant groups, and establish water quality standards for each river. A higher level of contamination was observed in the Gavaraget River from 2005-2010 due primarily to livestock and domestic sewage. Based on background concentrations, the rivers were classified into three groups with their own water quality standards. Seasonal variations required determining background concentrations and standards separately for different hydrological seasons. It was recommended to increase sampling frequency to monthly and extend the classification system and standards to other rivers flowing into Lake Sevan.
Water quality monitoring of tributaries flowing into Otsego Lake continued in 2015. Nutrient concentrations and physiochemical data were collected from five tributaries providing 70% of inflow. Past studies attributed increasing eutrophication in the lake to nutrient loading from human sources like wastewater and agriculture. Best Management Practices had been implemented near tributaries to improve water quality. High precipitation in 2015 caused nutrient influxes into tributaries. Phosphorus levels decreased while nitrogen fluctuated annually. Sites also had cooler temperatures and more dissolved oxygen compared to previous years.
This document summarizes a presentation about developing a nutrient source reduction project for Puget Sound. It discusses using a Salish Sea water quality model to evaluate nutrient reduction scenarios and set targets. It outlines engaging stakeholders through a Nutrient Forum and developing an implementation strategy to identify key actions and monitoring to meet water quality standards and protection goals by 2040. Bounding scenarios using the model evaluated the relative impacts of marine and watershed sources and potential reductions from wastewater treatment plants. Permitting options and rulemaking will be discussed further. The overall goals are to reduce human-caused nutrients affecting dissolved oxygen levels in Puget Sound.
This study investigated ecological processes in an urban stormwater lake during its ice-covered period from November to mid-April. Data from two winter seasons showed chlorophyll-a levels under ice were 22% of open-water levels, indicating primary productivity still occurs. Nutrients like nitrogen and phosphorus were significantly higher under ice, likely from road and urban runoff. Under ice, total phosphorus levels correlated positively with chlorophyll-a when nutrient ratios were low, suggesting phosphorus controls algal growth. The results provide evidence of active nutrient cycles in stormwater lakes during winter, contrary to assumptions of dormancy under ice cover.
This document summarizes a study on brackish groundwater comingling in Texas aquifers. It reviewed applicable statutes finding no clear definition of comingling. Factors like water quality stratification, hydraulic gradients, and well construction can enable comingling. Assessments of the Gulf Coast, Eagle Ford Region, and Trans Pecos aquifers found potential for comingling due to multi-aquifer wells and water quality variability. Case studies provided evidence of comingling. A statewide ranking identified 10 high-risk aquifers based on cross-formation completions. Future policy guidance on assessing comingling potential in brackish settings was recommended.
The document discusses linking agricultural practices to water quality improvement through several key points:
1) Monitoring of nitrogen and phosphorus loads delivered to streams from tile drainage systems showed a wide variation in yields across similar landscapes, and that tile drains delivered higher phosphorus loads than expected.
2) Studies of constructed wetlands intercepting tile drainage flows demonstrated that factors like nitrate concentration, hydraulic loading rate, and nitrate loading rate influenced nitrogen removal rates. Automated monitoring of multiple wetlands was conducted.
3) Research was presented on nitrogen transformations within wetlands and the fate of nitrate loads, including denitrification to nitrogen gas. A conceptual framework linked plot, field, and watershed scales to evaluate water
This document summarizes a study that assessed the coastal water quality of three sites in and around the Sundarbans mangrove ecosystem in India using the Aquatic Health Index (AHI). Water samples were collected from Canning, Junput, and Sagar Island and analyzed for various physicochemical parameters. The AHI was highest for Sagar Island, reflecting its more pristine environment influenced by mangroves and tidal flushing. Canning and Junput had lower AHI values, indicating deteriorated water quality due to human activities like industrialization, urbanization, tourism, and fishing. The study aims to evaluate ecologically sensitive zones and monitor coastal water health through the AHI assessment.
Duke University Study: Connection Between Marcellus Shale Drilling and Stray ...Marcellus Drilling News
A Duke University study published in the Proceedings of the National Academy of Sciences titled, "Increased stray gas abundance in a subset of drinking water wells near Marcellus shale gas extraction". The study supposedly shows a connection between natural gas drilling and stray gas (mostly methane) in nearby water wells. This is the second time Duke has published such a study. The study from 2011 was criticized for funding by the anti-drilling Park Foundation and for its weak research methodology. This second study has also come under fire for some of the same weaknesses.
Presented by Vladimir Smakhtin at the Ministry of Water Resources, New Delhi, India, November 4, 2014.
The flows of India’s rivers are increasingly being modified by dams and weirs and abstractions for agriculture and urban use. These interventions have caused significant alteration of flow regimes mainly by reducing total flow and affecting its variability and seasonality. An Environmental Flow (EF) is the water regime provided within a river, wetland or coastal zone to maintain ecosystems and their benefits. Environmental Flows describe the quantity, quality and timing of water flows required to sustain freshwater and estuarine ecosystems and the human livelihoods and well-being that depend on these ecosystems. This presentation looks at how the EF approach has been tested in India and describes a project to apply EF methodology to the upper Ganga.
Diana Allen, SFU - Water Science Research: Challenges and Success Stories in ...BC Water Science Symposium
The document discusses several case studies of water science research projects in BC that aimed to further the understanding of groundwater systems and highlight both the successes and challenges of knowledge translation. It provides details on projects focused on the Grand Forks, Gulf Islands, and Okanagan Basin regions that developed conceptual models, conducted vulnerability analyses, and assessed potential climate change impacts. However, the document notes that while some academic research has informed policy, often the findings are not effectively communicated to decision makers.
This document provides an overview and description of the new water quality and ecological monitoring plan for Jamaica Bay. It summarizes previous studies conducted in 1995/1996 and 2005/2006. The new monitoring program is required as part of a nitrogen consent judgment and aims to assess improvements in water quality and ecology from ongoing nitrogen reductions. The monitoring plan involves physical and hydraulic characterization of the bay through bathymetric surveys and tidal/current data collection. It also includes water quality and sediment sampling, as well as benthic and biological sampling through sediment analyses, benthic invertebrate surveys, trawl/sled surveys, and macroalgae/marsh grass sampling to monitor changes in the bay's ecology.
Pangeran Antasari mempersatukan gerakan perlawanan rakyat Banjar melawan campur tangan Belanda dalam urusan kerajaan pada tahun 1857. Perlawanan ini dipimpin Antasari setelah Belanda mengangkat Pangeran Tamjidillah sebagai Sultan tanpa restu rakyat. Meskipun perlawanan sengit, pada 1862 kerajaan Banjar dibubarkan Belanda dan Antasari meninggal dunia saat merencanakan perlawanan besar berikutnya.
Paul Windust is a partner at Berding | Weil LLP specializing in community association law, construction defect, real estate, and business litigation. He has over 25 years of legal experience representing homeowners associations, defending directors and management companies, and litigating construction defect claims, CC&R violations, and governance disputes. Some of his significant cases include settling a $50,000 per unit construction defect claim and obtaining a $165,000 attorney fee award for an association after a 3-week trial.
- Mark Saadeh is a hydrogeologist and water resources consultant with over 20 years of experience in Lebanon. He has worked on projects for organizations such as the Litani River Authority, the American University of Technology, and Associated Consulting Engineers.
- He holds a PhD in hydrogeology from RWTH Aachen University in Germany and teaches part-time at the American University of Technology and Holy Spirit University of Kaslik.
- His areas of expertise include hydrogeology, contamination hydrology, water quality monitoring and management, wastewater treatment, and environmental impact assessments. He has published several papers on topics related to groundwater resources and quality in Lebanon.
This document summarizes a workshop on improving freshwater monitoring frameworks in northwest India. It discusses current groundwater quality monitoring efforts and gaps. Key issues include increased pollution levels, falling water levels, and a lack of comprehensive and high-resolution spatial monitoring of parameters like heavy metals. The document outlines the need to better understand recharge processes, water quality impacts, and the properties of groundwater systems through improved monitoring protocols. Case studies from the region are proposed to help address questions around these issues and make recommendations to improve water resource management.
The document discusses the importance of monitoring land-ocean carbon fluxes at a pan-European scale. It notes that while there is a significant amount of existing data on carbon fluxes, the data is scattered and not standardized. The document recommends establishing a coordinated monitoring network that builds on existing water quality monitoring networks to regularly measure carbon and other parameters in Europe's major rivers, lakes, and coastal waters. Targeted process studies and numerical modeling could help extrapolate the monitoring data and further scientific understanding of carbon fluxes across the land-ocean continuum.
Groundwater and River Water Interaction on Cikapundung River: Revisited (ICMN...Dasapta Erwin Irawan
The interaction between groundwater and Cikapundung river water has not changed significantly in 16 years of period. This paper revisit the similar research based on 43 measurement points: 13 dug wells, 2 springs, and 24 river, distributed along the riverbank at Curug Dago to Batununggal segment. The field measurements were taken in rainy season of April to May 2014 using portable instruments. Six parameters were measured: water level, temperature, total dissolved solids (TDS), dissolved-oxygen (DO), and pH. The new model is unable to detect significant change in water flow, however it finds two local anomalies in Dago Pojok and Cikapayang area. Both locations show local drawdown circle which can induce influent stream in overal effluent environment. Moreover, water quality parameters indicate mixing processes between groundwater and river water, with erratic pattern both in effluent and influent stream. Also some DO and TDS readings exceed the permissible limit. These values suggest a lifted groundwater mineralization from organic and non-organic sources and change of chemical stability. The source of contamination is still under further examination.
Steve Davis - Western Lake Erie Basin Nutrient Reductions: Goals And Programs...John Blue
Western Lake Erie Basin Nutrient Reductions: Goals And Programs To Get There - Steve Davis, from the 2018 Conservation Tillage and Technology Conference, March 6 - 7, Ada, OH, USA.
More presentations at https://www.youtube.com/channel/UCZBwPfKdlk4SB63zZy16kyA
This document discusses technical challenges in meeting phosphorus reduction goals in agricultural watersheds that drain into Lake Erie. It provides data on phosphorus levels in tributaries before and after targets were set to reduce phosphorus by 40%. The document also examines phosphorus sources, pathways, and the impacts of various conservation practices. Modeling shows that while individual practices may help reduce erosion, they do little to limit dissolved phosphorus in tile drainage, which accounts for a large portion of the phosphorus load. Newer approaches that target tile drainage and in-stream retention are proposed to help meet large-scale phosphorus goals.
This work has sought to answer how global environmental change affects the concentration of nutrients in Mediterranean rivers. By means of a modeling effort using data collected by water agencies, this work has contributed to the knowledge of the relevant factors that drive nutrient dynamics in Mediterranean rivers, and how these change in time and space. Furthermore, it has clearly shown the potential modeling and time-series analysis offer to river scientists and managers.
This PhD thesis evaluates the water quality of six rivers flowing into Lake Sevan using various indices and develops a new classification system. The aim is to assess factors affecting water quality, define pollutant groups, and establish water quality standards for each river. A higher level of contamination was observed in the Gavaraget River from 2005-2010 due primarily to livestock and domestic sewage. Based on background concentrations, the rivers were classified into three groups with their own water quality standards. Seasonal variations required determining background concentrations and standards separately for different hydrological seasons. It was recommended to increase sampling frequency to monthly and extend the classification system and standards to other rivers flowing into Lake Sevan.
Water quality monitoring of tributaries flowing into Otsego Lake continued in 2015. Nutrient concentrations and physiochemical data were collected from five tributaries providing 70% of inflow. Past studies attributed increasing eutrophication in the lake to nutrient loading from human sources like wastewater and agriculture. Best Management Practices had been implemented near tributaries to improve water quality. High precipitation in 2015 caused nutrient influxes into tributaries. Phosphorus levels decreased while nitrogen fluctuated annually. Sites also had cooler temperatures and more dissolved oxygen compared to previous years.
This document summarizes a presentation about developing a nutrient source reduction project for Puget Sound. It discusses using a Salish Sea water quality model to evaluate nutrient reduction scenarios and set targets. It outlines engaging stakeholders through a Nutrient Forum and developing an implementation strategy to identify key actions and monitoring to meet water quality standards and protection goals by 2040. Bounding scenarios using the model evaluated the relative impacts of marine and watershed sources and potential reductions from wastewater treatment plants. Permitting options and rulemaking will be discussed further. The overall goals are to reduce human-caused nutrients affecting dissolved oxygen levels in Puget Sound.
This study investigated ecological processes in an urban stormwater lake during its ice-covered period from November to mid-April. Data from two winter seasons showed chlorophyll-a levels under ice were 22% of open-water levels, indicating primary productivity still occurs. Nutrients like nitrogen and phosphorus were significantly higher under ice, likely from road and urban runoff. Under ice, total phosphorus levels correlated positively with chlorophyll-a when nutrient ratios were low, suggesting phosphorus controls algal growth. The results provide evidence of active nutrient cycles in stormwater lakes during winter, contrary to assumptions of dormancy under ice cover.
This document summarizes a study on brackish groundwater comingling in Texas aquifers. It reviewed applicable statutes finding no clear definition of comingling. Factors like water quality stratification, hydraulic gradients, and well construction can enable comingling. Assessments of the Gulf Coast, Eagle Ford Region, and Trans Pecos aquifers found potential for comingling due to multi-aquifer wells and water quality variability. Case studies provided evidence of comingling. A statewide ranking identified 10 high-risk aquifers based on cross-formation completions. Future policy guidance on assessing comingling potential in brackish settings was recommended.
The document discusses linking agricultural practices to water quality improvement through several key points:
1) Monitoring of nitrogen and phosphorus loads delivered to streams from tile drainage systems showed a wide variation in yields across similar landscapes, and that tile drains delivered higher phosphorus loads than expected.
2) Studies of constructed wetlands intercepting tile drainage flows demonstrated that factors like nitrate concentration, hydraulic loading rate, and nitrate loading rate influenced nitrogen removal rates. Automated monitoring of multiple wetlands was conducted.
3) Research was presented on nitrogen transformations within wetlands and the fate of nitrate loads, including denitrification to nitrogen gas. A conceptual framework linked plot, field, and watershed scales to evaluate water
This document summarizes a study that assessed the coastal water quality of three sites in and around the Sundarbans mangrove ecosystem in India using the Aquatic Health Index (AHI). Water samples were collected from Canning, Junput, and Sagar Island and analyzed for various physicochemical parameters. The AHI was highest for Sagar Island, reflecting its more pristine environment influenced by mangroves and tidal flushing. Canning and Junput had lower AHI values, indicating deteriorated water quality due to human activities like industrialization, urbanization, tourism, and fishing. The study aims to evaluate ecologically sensitive zones and monitor coastal water health through the AHI assessment.
Duke University Study: Connection Between Marcellus Shale Drilling and Stray ...Marcellus Drilling News
A Duke University study published in the Proceedings of the National Academy of Sciences titled, "Increased stray gas abundance in a subset of drinking water wells near Marcellus shale gas extraction". The study supposedly shows a connection between natural gas drilling and stray gas (mostly methane) in nearby water wells. This is the second time Duke has published such a study. The study from 2011 was criticized for funding by the anti-drilling Park Foundation and for its weak research methodology. This second study has also come under fire for some of the same weaknesses.
Presented by Vladimir Smakhtin at the Ministry of Water Resources, New Delhi, India, November 4, 2014.
The flows of India’s rivers are increasingly being modified by dams and weirs and abstractions for agriculture and urban use. These interventions have caused significant alteration of flow regimes mainly by reducing total flow and affecting its variability and seasonality. An Environmental Flow (EF) is the water regime provided within a river, wetland or coastal zone to maintain ecosystems and their benefits. Environmental Flows describe the quantity, quality and timing of water flows required to sustain freshwater and estuarine ecosystems and the human livelihoods and well-being that depend on these ecosystems. This presentation looks at how the EF approach has been tested in India and describes a project to apply EF methodology to the upper Ganga.
Diana Allen, SFU - Water Science Research: Challenges and Success Stories in ...BC Water Science Symposium
The document discusses several case studies of water science research projects in BC that aimed to further the understanding of groundwater systems and highlight both the successes and challenges of knowledge translation. It provides details on projects focused on the Grand Forks, Gulf Islands, and Okanagan Basin regions that developed conceptual models, conducted vulnerability analyses, and assessed potential climate change impacts. However, the document notes that while some academic research has informed policy, often the findings are not effectively communicated to decision makers.
This document provides an overview and description of the new water quality and ecological monitoring plan for Jamaica Bay. It summarizes previous studies conducted in 1995/1996 and 2005/2006. The new monitoring program is required as part of a nitrogen consent judgment and aims to assess improvements in water quality and ecology from ongoing nitrogen reductions. The monitoring plan involves physical and hydraulic characterization of the bay through bathymetric surveys and tidal/current data collection. It also includes water quality and sediment sampling, as well as benthic and biological sampling through sediment analyses, benthic invertebrate surveys, trawl/sled surveys, and macroalgae/marsh grass sampling to monitor changes in the bay's ecology.
Pangeran Antasari mempersatukan gerakan perlawanan rakyat Banjar melawan campur tangan Belanda dalam urusan kerajaan pada tahun 1857. Perlawanan ini dipimpin Antasari setelah Belanda mengangkat Pangeran Tamjidillah sebagai Sultan tanpa restu rakyat. Meskipun perlawanan sengit, pada 1862 kerajaan Banjar dibubarkan Belanda dan Antasari meninggal dunia saat merencanakan perlawanan besar berikutnya.
Paul Windust is a partner at Berding | Weil LLP specializing in community association law, construction defect, real estate, and business litigation. He has over 25 years of legal experience representing homeowners associations, defending directors and management companies, and litigating construction defect claims, CC&R violations, and governance disputes. Some of his significant cases include settling a $50,000 per unit construction defect claim and obtaining a $165,000 attorney fee award for an association after a 3-week trial.
Và để hiểu, biết, cách sử dụng như thế nào thì các bạn xem thêm thông tin tại đây: http://tudunghoachat.net/san-pham/tu-vi-khi-hau/
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Một số dự án thi công sơn epoxy của bry thực hiệnnhungbry
Một số dự án thi công sơn epoxu của bry thực hiện:
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Unira srl - Presentazione imprese di pulizia & serviziMichele Turini
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Similar to Annual review presentation_Rahnum_2200HRS10JUN2015_Final (20)
1. Rahnum Tasnuva Nazmul
Master of Philosophy Student in Geography
Supervisor: Assoc. Professor Stuart Pearson
Co. Supervisor: Professor Hans Riesen
School of Physical, Environmental and Mathematical Sciences
Spatial and temporal variation of water
quality parameters in Jerrabomberra
Wetlands, Australian Capital Territory
3. Educational Qualifications
• Graduated from Bangladesh University of Engineering and
Technology in B.Sc. Civil Engineering
• Major Courses are Environmental Engineering and Structural
Engineering
My Background
4. Courses:
• CVEN 4501/9612- Catchment and Water Resources Modelling
(Completed)
• Postgraduate English Enhancement Course (PEEC) (Completed)
• ZINT 9001- Postgraduate Research Preparation Course (Completed)
• Learning ArcGIS Desktop – ESRI Virtual Campus (Ongoing)
• ZPEM 8206 - Applications in Geographic Information Analysis
(Ongoing)
Research :
The proposed M.Phil. research project aims to develop a
representation and explanation of spatial and temporal variation of
water quality parameters in a part of Jerrabomberra Wetlands,
Australian Capital Territory
M.Phil. Progress
5. Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul
CVEN4501/9612
ZINT9001
ZPEM8206
Literature Review
Field Work And Laboratory
sample testing
Exisitingdatagathering
Spatial mappingwith GIS
Temporal Variation of Water
quality parameters
Comparative DataAnalysis
NutrientBudgetCalculation
Table of Content
Introduction
Literature Review
Methodology
Result
Discussion
Final Thesis writing
Conference paper
Journal paper
2014 2015 2016
Courses
Research
Writing
Publications
Research Activity
M.Phil. Timeline
6. Jerrabomberra Wetlands
Lake Burley Griffin
Kingston-
Mostly residential area
Turf Farm
Molonglo
River
Fyshwick – Industrial and
Commercial area
Jerrabomberra Creek
7. Key features of Jerrabomberra wetlands
• Habitat of a wide range of native and migratory birds also to reptiles.
• These migratory birds are the species which are listed under
International agreements for conservation.
• Listed in the directory of important wetlands in Australia. (ACT
Govt., 2010)
ACT Government. 2010. Jerrabomberra Wetlands Nature Reserve Plan of Management 2010. Department of Territory and Municipal Services, ACT Government.
ACT Government. 2013. Jerrabomberra Wetlands Nature Reserve Report 2013. Department of Territory and Municipal Services, ACT Government.
Water sources in the wetlands are
• Rainwater 91.4%
• External catchment discharge
8.5%
• Groundwater 1% of the wetland
water
8. • ‘Basin Priority Project’ has been launched by the ACT government
with funding from Australian Government targeted to improve the
water quality of Canberra’s lakes and water bodies.
• This project considered six catchment areas as the representative of
different land use pattern and catchment characteristics.
• Fyshwick catchment has been considered as an exemplar of mixture
of grazing pasture (56%) and intensive industrial and commercial
land use(30%).
• Earlier research concluded
that Fyshwick has a very poor
defined stormwater network
and overland flow path in
Central and North sub
catchments.
• These results an uncontrolled
release of storm water runoff
from north and central area.
ACT Government. 2010. Jerrabomberra Wetlands Nature Reserve Plan of Management 2010. Department of Territory and Municipal Services, ACT Government.
ACT Government. 2013. Jerrabomberra Wetlands Nature Reserve Report 2013. Department of Territory and Municipal Services, ACT Government.
Basin Priority Project and Fyshwick
9. • Eight external sub catchments discharging into the reserve
ACT Government. 2013. Jerrabomberra Wetlands Nature Reserve Report 2013. Department of Territory and Municipal Services, ACT Government.
C2
D
Jerrabomberra Creek
F
E
C1
B
A2
A1
Molonglo River
Connection between Fyshwick and
Jerrabomberra Wetlands
11. • Studies have been conducted on the surface runoff quality of Fyshwick
industrial area by AECOM.
• The water quality of East Basin of Lake Burley Griffin is conducted
regularly in summer.
• However there is a significant deficiency of surface water quality data
inside the wetlands.
• Adequate surface water quality data is required to develop a clear
understanding of the wetland performance in water purification.
The proposed research project aims to develop a spatial and
temporal variation of water quality parameters in a part of the
wetlands in response to the surface runoff from the Fyshwick
Catchment.
Research Gap
12. To fill important water quality data gaps to enable specific water
bodies in Jerrabomberra Wetlands to be described.
To provide the Management Authority of Jerrabomberra Wetlands
with spatial maps of water quality parameters.
To plot the temporal variation of surface water quality for the study
period and contribute to the surface water quality database of the
Jerrabomberra wetlands.
To do a comparison analysis with upstream and downstream historical
water quality data.
To calculate a nutrient budget for the study area.
Research Aims and Objectives
13. Identifying the
research gap
(Meetings with
Jerrabomberra
Wetlands
Management
Authority)
Study area
Selection
Parameter Selection
Chemical Parameters
1. Dissolved Oxygen
(DO)
2. Total Phosphorus (TP)
3. Nitrate (NO-
3)
4. Zinc (Zn)
5. Acidity or, Alkalinity
(pH)
Physical Parameters
1. Water temperature
2. Turbidity
3. Electrical
Conductivity
Research Methodology
Preparing an
Water quality
dataset
1. To gather existing
water quality data
2. In-situ water
sampling and
laboratory tests to
develop dataset
within the
wetlands
Spatial and
temporal water
quality variation in
part of wetlands
List of Locations:
1. Location ‘A’
2. Location ‘B’
3. Jerrabomberra
Billabong
4. Jerrabomberra
Creek
5. Location ‘C’
6. Location ‘D’
14. Spatial Analysis
Temporal Analysis
Water quality
dataset
Graphical
representation of
water quality
parameters with
time
Plotting water quality maps
with a Geographic
Information System(GIS)
Nutrient Budget
calculation for
the study area
Nutrient Budget
calculation for
the study area
Comparative
assessment of
upstream and
downstream water
quality
Comparing collected
data with the existing
upstream and
downstream water
quality data
Research Methodology
15. Month Week 1 Week 2 Week 3 Week 4
January 17th/12/14 9th 21st 29th
February 6th 13th 20th 26th
March 6th 13th 20th 27th
April 3rd 10th 17th 24th
Study Period
Research Progress
0.00
10.00
20.00
30.00
40.00
50.00
60.00
7/12/2014 27/12/2014 16/01/2015 5/02/2015 25/02/2015 17/03/2015 6/04/2015 26/04/2015 16/05/2015
Rainfall data during the study period
Bureau of Meteorology, Australian Government
17. 40
60
80
100
17 Dec 2014 31 Dec 2014 14 Jan 2015 28 Jan 2015 11 Feb 2015 25 Feb 2015 11 Mar 2015 25 Mar 2015 8 Apr 2015 22 Apr 2015
ELECTRICALCONDUCTIVITY
Electrical Conductivity
Primary Results
Temporal variation of water quality at study location ‘B’
18. 6
6.5
7
7.5
8
8.5
17 Dec 2014 31 Dec 2014 14 Jan 2015 28 Jan 2015 11 Feb 2015 25 Feb 201511 Mar 201525 Mar 2015 8 Apr 2015 22 Apr 2015
PH
Acidity or, alkalinity variation
Primary Results
Temporal variation of water quality at study location ‘B’
Dry period
Rainfall
19. 0
0.002
0.004
0.006
0.008
0.01
0.012
17 Dec 201431 Dec 201414 Jan 2015 28 Jan 2015 11 Feb 201525 Feb 201511 Mar 201525 Mar 2015 8 Apr 2015 22 Apr 2015
TOTALPHOSPHORUS
Variation of Total Phosphorus
Temporal variation of water quality at study location ‘B’
Primary Results
Wet period
20. 0
1
2
3
4
5
6
7
8
9
10
17 Dec 2014 31 Dec 2014 14 Jan 2015 28 Jan 2015 11 Feb 2015 25 Feb 2015 11 Mar 201525 Mar 2015 8 Apr 2015 22 Apr 2015
DISSOLVEDOXYGEN
DATE
Variation of Dissolved Oxygen
Primary Results
Temporal variation of water quality at study location ‘B’
Dry period
25. Name Type Status
World Wetlands Day, 2nd February 2015 Poster
presentation
Completed
Institute of Australian Geographers
Conference,2015
Conference Paper Abstract
submitted
4th
International Conference on Environment,
Chemistry and Biology
Conference paper Writing the paper
13th International Conference on Modelling,
Monitoring and Management
of Water Pollution
Conference Paper
Journal Paper
Aim of Publications
26. Chapter For me For
Supervisor
Draft Peer review
Table of Content Completed
Introduction Ongoing
Literature Review 25%
Background Study 50%
Methodology 25%
Result 30%
Discussion
Conclusion
Writing Progress
27. Acknowledgements
I am thankful to my supervisor Associate Professor Stuart Pearson
and my co-supervisor Professor Hans Reisen for their support and
guidance in this project; Technical Officer Ms. Kate Badek for her
cooperation and assistance in the field works and laboratory works
and Jerrabomberra Wetlands Management Authority for its permission
to carry out this research.
Editor's Notes
Good afternoon everyone, I am Rahnum Tasnuva Nazmul, welcome to my presentation on Spatial and Temporal Variation of Water Quality Parameters in Jerrabomberra Wetland, Australian Capital Territory, my supervisor is Dr. Stuart Pearson and Co-supervisor is Dr. Hans Riesen
This is the outline of my presentation. I would like to mention that there will be no specific section for literature review, relevant literature will be discussed where appropriate.
I have completed my Bachelor of Science in Civil Engineering from Bangladesh University of Engineering and Technology. My major Courses are Environmental Engineering and Structural Engineering.
Catchment and Water Resources Modelling course focused on an advanced knowledge in Water Resources Engineering Methodologies and Hydrology.
Learning ArcGIS Desktop in ESRI virtual Campus. This course served as a prerequisite course for Applications in Geographic Information Analysis
Application in Geographic Information Analysis focused on the customization of the applications of Geographic Information System in order to solve different types of geographical problems.
The Jerrabomberra wetlands are located on the heart of the Australian Capital, Canberra. Its situated Eastern edge Lake Burley Griffin, surrounded by Turf farm on east, southern borders are surrounded by Fyshwick Industrial area and Kingston area. Jerrabomberra Creek has its entrance into the reserve through its South-Eastern corner while the Molonglo river has bypass the reserve through its Northern boundary. Finally the West of the reserve meets the Eastern edge of lake Burley Griffin.
Being located in such an important geographical location in the centre of the city this Wetlands serves as a major habitat of a wide range of native and migratory birds to replies listed under international agreements. Because of its outstanding contribution in the ecosystem it has been listed in the directory of important wetlands in Australia. Along with its widespread contribution to the ecosystem it also plays an important role in maintaining the downstream water quality to the Lake Burley Griffin.
An assessment study on the water sources pathway in Jerrabomberra wetlands conducted by Ian Lawrence found the water source of the wetlands to be dependent on the rainwater up to 91.4%, on external catchment up to 8.5% and on groundwater up to 1%.
An study on Fyshwick and Jerrabomberra wetlands stormwater quality investigation conducted on 2013 by Batterley and Stone found the north sub catchment and Fyshwick central sub catchment having a very poor defined stormwater network and overland flow path which results in an uncontrolled release of stormwater runoff.
Earlier discussion on water sources in JB wetlands, showed 8.5% of water in JBW comes from external sub catchment discharges.
In total there are 8 sub catchments.
They can be seen from the above picture.
Among these 4 catchment brings water from Fyshwick area. JB creek also carries water from Fyshwick.
As a receiving water body of storm water runoff it is very important to monitor the variation of water quality parameters in the wetlands
there is a significant deficiency of surface water quality data inside the wetlands which is very important to develop a clear understanding of the wetland performance in water purification
As a receiving water body of storm water runoff it is very important to monitor the variation of water quality parameters in the wetlands
there is a significant deficiency of surface water quality data inside the wetlands which is very important to develop a clear understanding of the wetland performance in water purification