Wright State University-Lake Campus Biology Professor Stephen Jacquemin shared this presentation during the November 2021 Lake Improvement Association member meeting. Learn more at https://lakeimprovement.com.
June 2021 Grand Lake St. Marys Water Quality Updatelakeimprovement
June 2021 Grand Lake St. Marys Water Quality Update by Dr. Stephen Jacquemin, Wright State University, presented at the June 2021 Lake Improvement Association Member Meeting. LakeImprovement.com
Grand Lake St. Marys Constructed Wetlands LIA Presentation Dec. 2017lakeimprovement
Wright State University's Dr. Stephen Jaquemin presented an update on the constructed wetlands at Grand Lake St. Marys at the December 2017 Lake Improvement Association member meeting. Watch the video here: https://lakeimprovement.com/video-december-2017-lia-member-meeting/
The primary goals of this project were to address public safety concerns, stabilize an eroded channel by using natural stream design techniques and promote the growth of native vegetation. The natural channel design techniques used, such as a reinforced bed mix riffle sections and step pools, reduce the flow velocity, provide stability, and enhance water quality along the streams leading to the Chesapeake Bay. The disturbed areas of the site were restored with native shrubs, plants and trees.
June 2021 Grand Lake St. Marys Water Quality Updatelakeimprovement
June 2021 Grand Lake St. Marys Water Quality Update by Dr. Stephen Jacquemin, Wright State University, presented at the June 2021 Lake Improvement Association Member Meeting. LakeImprovement.com
Grand Lake St. Marys Constructed Wetlands LIA Presentation Dec. 2017lakeimprovement
Wright State University's Dr. Stephen Jaquemin presented an update on the constructed wetlands at Grand Lake St. Marys at the December 2017 Lake Improvement Association member meeting. Watch the video here: https://lakeimprovement.com/video-december-2017-lia-member-meeting/
The primary goals of this project were to address public safety concerns, stabilize an eroded channel by using natural stream design techniques and promote the growth of native vegetation. The natural channel design techniques used, such as a reinforced bed mix riffle sections and step pools, reduce the flow velocity, provide stability, and enhance water quality along the streams leading to the Chesapeake Bay. The disturbed areas of the site were restored with native shrubs, plants and trees.
Restoration experts from Ducks Unlimited, The Nature Conservancy, and the Lower Fox River/Green Bay Areas of Concern will discuss case studies of partnerships turning federal GLRI funding into successful on-the-ground habitat restoration projects that provide a variety of ecological and societal benefits that can be sustained well into the future. Featured case studies include successfully restoring coastal marsh for waterbirds and for northern pike, using watershed-based GIS planning tools to prioritize restoration projects, and the reestablishment of the Cat Island Chain of islands in lower Green Bay. This presentation was given by Brian Glenzinski, Wisconsin Regional Biologist, Ducks Unlimited.
EOPS_August_24_2016,
In July, conditions were normalizing, yet river flows remained lower, continuing into August. July also saw lower oxygen appearing in southern Puget Sound. By August, jellyfish are occurring in high numbers in Eld and Budd Inlet. South Puget Sound has Noctiluca drifting at the surface in large orange lines in many places and red-brown blooms widespread in finger inlets, as well as in Sinclair Inlet. Central Sound surface-water temperatures are high, still in the 60s, and algae are abundant. See what we are measuring to understand ocean acidification in Puget Sound.
Publication No. 16-03-076
EOPS_July_20_2016,
Through June, air temperatures and sunlight were higher than normal. Recent rain generally improved river flows. However, the Fraser river flow remains extremely low, reducing water exchange with the ocean. Water temperatures are still breaking records, yet dissolved oxygen levels are normal. Coastal bays are influenced by upwelling and exhibit lower oxygen and higher salinities. Puget Sound algae are thriving with blooms observed in many South Sound inlets. Macro-algae is seen piling up on beaches and drifting in Central Sound. Jellyfish smacks are numerous in Eld and Budd Inlets. Our fliers notice seals hanging out at the beach!
Ecology Publication No. 16-03-075
EOPS_June_5_2017,
Cooler and wetter conditions early in 2017 have set the stage for a favorable supply of freshwater. River flows are all above normal due to melting of the abundant snowpack from warmer May air temperatures. This is creating significantly fresher conditions in Puget Sound surface waters. Algae blooms are limited to some yellow-green blooms growing in bays near the Kitsap Peninsula and blooms near estuaries of the Skagit, Stillaguamish, and Puyallup Rivers. Red blooms are present in rivers feeding into Willapa Bay. Also see what is “blooming” in the sediments of Puget Sound.
Ecology Publication No. 17-03-070
The Innisvale Drive Outfall Restoration project was substantially completed on December 11, 2018. The primary goals of this project in the Popes Head Creek Watershed were to address public safety concerns, stabilize a deeply eroded channel, and improve water quality. The natural channel design techniques used, such as a reinforced bed mix riffle sections and step pools, reduce the flow velocity, provide stability, and enhance water quality along the stream leading to the Chesapeake Bay. The disturbed areas of the site were restored with native shrubs, plants and trees.
EOPS_August_28_2017,
Warm air temperatures, abundant sunshine, and drier conditions persisted. River flows are lower in the north. Puget Sound waters are still fresher than in the past 17 years from the combination of abundant spring rain and weak upwelling bringing less salty water from the ocean. July upwelling was stronger, however. Warmer water temperatures are notable in parts of Central Sound, accompanied by large rafts of drifting macroalgae. Diverse blooms in colors of green, orange and red-brown are present in many inlets. Jellyfish abundance is lower this year. Find out how we assess if the benthos is changing.
Ecology Publication No. 17-03-072
Heather Baird (of Minnesota Department of Natural Resources), presented at the Adapting Forested Watersheds to Climate Change Workshop, at The Waters, Minocqua, WI on March 15-16, 2017. The workshop was hosted by the Northern Institute of Applied Climate Science (NIACS), USDA Climate Hubs, and the Wisconsin Initiative on Climate Change Impacts (WICCI).
Andrew Rypel (of Wisconsin Department of Natural Resources), presented at the Adapting Forested Watersheds to Climate Change Workshop, at The Waters, Minocqua, WI on March 15-16, 2017. The workshop was hosted by the Northern Institute of Applied Climate Science (NIACS), USDA Climate Hubs, and the Wisconsin Initiative on Climate Change Impacts (WICCI).
Dr. Christopher Krembs, with the marine monitoring unit of the Department of Ecology, presented on the warm water conditions in Puget Sound. He discussed the impacts on marine food webs and potential scenarios in 2015. He presented at the June 2015 NRC meeting.
Wesley Daniel (of Michigan State University), presented at the Adapting Forested Watersheds to Climate Change Workshop, at The Waters, Minocqua, WI on March 15-16, 2017. The workshop was hosted by the Northern Institute of Applied Climate Science (NIACS), USDA Climate Hubs, and the Wisconsin Initiative on Climate Change Impacts (WICCI). Details at www.forestadaptation.org/water.
Dean Paron (of Minnesota Department of Natural Resources), presented at the Adapting Forested Watersheds to Climate Change Workshop, at The Waters, Minocqua, WI on March 15-16, 2017. The workshop was hosted by the Northern Institute of Applied Climate Science (NIACS), USDA Climate Hubs, and the Wisconsin Initiative on Climate Change Impacts (WICCI).
Projecting Climate Change Impacts on Water Resources in Regions of Complex To...Riccardo Rigon
The title describes it all. Jeremy Pal's student Brianna Pagàn and coworkers put an impressive set of tools to estimate the impacts of land use and climate change on water resources of south California.
Muskegon Lake, located in Muskegon, Mich., has been listed as a Great Lakes Area of Concern due to a significant loss of wildlife habitat and degraded water quality. This presentation will discuss how an organized grassroots effort has successfully received state and federal funding to implement large-scale ecological restoration projects throughout the lake.
Restoration experts from Ducks Unlimited, The Nature Conservancy, and the Lower Fox River/Green Bay Areas of Concern will discuss case studies of partnerships turning federal GLRI funding into successful on-the-ground habitat restoration projects that provide a variety of ecological and societal benefits that can be sustained well into the future. Featured case studies include successfully restoring coastal marsh for waterbirds and for northern pike, using watershed-based GIS planning tools to prioritize restoration projects, and the reestablishment of the Cat Island Chain of islands in lower Green Bay. This presentation was given by Brian Glenzinski, Wisconsin Regional Biologist, Ducks Unlimited.
EOPS_August_24_2016,
In July, conditions were normalizing, yet river flows remained lower, continuing into August. July also saw lower oxygen appearing in southern Puget Sound. By August, jellyfish are occurring in high numbers in Eld and Budd Inlet. South Puget Sound has Noctiluca drifting at the surface in large orange lines in many places and red-brown blooms widespread in finger inlets, as well as in Sinclair Inlet. Central Sound surface-water temperatures are high, still in the 60s, and algae are abundant. See what we are measuring to understand ocean acidification in Puget Sound.
Publication No. 16-03-076
EOPS_July_20_2016,
Through June, air temperatures and sunlight were higher than normal. Recent rain generally improved river flows. However, the Fraser river flow remains extremely low, reducing water exchange with the ocean. Water temperatures are still breaking records, yet dissolved oxygen levels are normal. Coastal bays are influenced by upwelling and exhibit lower oxygen and higher salinities. Puget Sound algae are thriving with blooms observed in many South Sound inlets. Macro-algae is seen piling up on beaches and drifting in Central Sound. Jellyfish smacks are numerous in Eld and Budd Inlets. Our fliers notice seals hanging out at the beach!
Ecology Publication No. 16-03-075
EOPS_June_5_2017,
Cooler and wetter conditions early in 2017 have set the stage for a favorable supply of freshwater. River flows are all above normal due to melting of the abundant snowpack from warmer May air temperatures. This is creating significantly fresher conditions in Puget Sound surface waters. Algae blooms are limited to some yellow-green blooms growing in bays near the Kitsap Peninsula and blooms near estuaries of the Skagit, Stillaguamish, and Puyallup Rivers. Red blooms are present in rivers feeding into Willapa Bay. Also see what is “blooming” in the sediments of Puget Sound.
Ecology Publication No. 17-03-070
The Innisvale Drive Outfall Restoration project was substantially completed on December 11, 2018. The primary goals of this project in the Popes Head Creek Watershed were to address public safety concerns, stabilize a deeply eroded channel, and improve water quality. The natural channel design techniques used, such as a reinforced bed mix riffle sections and step pools, reduce the flow velocity, provide stability, and enhance water quality along the stream leading to the Chesapeake Bay. The disturbed areas of the site were restored with native shrubs, plants and trees.
EOPS_August_28_2017,
Warm air temperatures, abundant sunshine, and drier conditions persisted. River flows are lower in the north. Puget Sound waters are still fresher than in the past 17 years from the combination of abundant spring rain and weak upwelling bringing less salty water from the ocean. July upwelling was stronger, however. Warmer water temperatures are notable in parts of Central Sound, accompanied by large rafts of drifting macroalgae. Diverse blooms in colors of green, orange and red-brown are present in many inlets. Jellyfish abundance is lower this year. Find out how we assess if the benthos is changing.
Ecology Publication No. 17-03-072
Heather Baird (of Minnesota Department of Natural Resources), presented at the Adapting Forested Watersheds to Climate Change Workshop, at The Waters, Minocqua, WI on March 15-16, 2017. The workshop was hosted by the Northern Institute of Applied Climate Science (NIACS), USDA Climate Hubs, and the Wisconsin Initiative on Climate Change Impacts (WICCI).
Andrew Rypel (of Wisconsin Department of Natural Resources), presented at the Adapting Forested Watersheds to Climate Change Workshop, at The Waters, Minocqua, WI on March 15-16, 2017. The workshop was hosted by the Northern Institute of Applied Climate Science (NIACS), USDA Climate Hubs, and the Wisconsin Initiative on Climate Change Impacts (WICCI).
Dr. Christopher Krembs, with the marine monitoring unit of the Department of Ecology, presented on the warm water conditions in Puget Sound. He discussed the impacts on marine food webs and potential scenarios in 2015. He presented at the June 2015 NRC meeting.
Wesley Daniel (of Michigan State University), presented at the Adapting Forested Watersheds to Climate Change Workshop, at The Waters, Minocqua, WI on March 15-16, 2017. The workshop was hosted by the Northern Institute of Applied Climate Science (NIACS), USDA Climate Hubs, and the Wisconsin Initiative on Climate Change Impacts (WICCI). Details at www.forestadaptation.org/water.
Dean Paron (of Minnesota Department of Natural Resources), presented at the Adapting Forested Watersheds to Climate Change Workshop, at The Waters, Minocqua, WI on March 15-16, 2017. The workshop was hosted by the Northern Institute of Applied Climate Science (NIACS), USDA Climate Hubs, and the Wisconsin Initiative on Climate Change Impacts (WICCI).
Projecting Climate Change Impacts on Water Resources in Regions of Complex To...Riccardo Rigon
The title describes it all. Jeremy Pal's student Brianna Pagàn and coworkers put an impressive set of tools to estimate the impacts of land use and climate change on water resources of south California.
Muskegon Lake, located in Muskegon, Mich., has been listed as a Great Lakes Area of Concern due to a significant loss of wildlife habitat and degraded water quality. This presentation will discuss how an organized grassroots effort has successfully received state and federal funding to implement large-scale ecological restoration projects throughout the lake.
Steve Apfelbaum tells how restoring biodiverse landscapes can be the most effective way to manage stormwater, as demonstrated in projects such as Seneca Meadows in New York state.
Presented at the Restoring Water Cycles to Reverse Global Warming conference October 16th-18th, 2015 at Tufts University.
Victoria’s River Red Gum parks are a magnificent conservation asset and a great legacy in terms of social and indigenous justice because these are the first Victorian national parks to be co-managed with the Traditional Owners.
Created by the Brumby government, they stretch from the lower reaches of the Goulburn and Ovens Rivers, along the Murray to the border with South Australia.
But there remains unfinished business – these floodplain ecosystems are in crisis and need a secure allocation of environmental water.
The Vietnam National Mekong Committee conducted a Mekong Dam Study, the results of which were presented at the Greater Mekong Forum on Water, Food and Energy in Phnom Penh on Oct. 21, 2015. This is part one of their overview presentation.
1 How to Overcome Public Perception Issues on Potable R.docxpoulterbarbara
1
How to Overcome Public Perception Issues on Potable Reuse Projects
Michael R. Markus, P.E., Orange County Water District, Fountain Valley, CA
Eleanor Torres, Orange County Water District, Fountain Valley, CA
Abstract
The purpose of this paper is to provide an overview of how the Orange County Water District
(the District; OCWD) was able to insulate itself from public opposition to its potable reuse
project, the Groundwater Replenishment System (GWRS).
To understand what challenges the District would be facing it is important to first understand
what was happening with other projects that were being developed at the same time in
Southern California. Second, it is important to understand the process by which the outreach
program was developed and how it was executed. That program was ongoing and changed
with the project to help anticipate and react to various issues that developed. Finally, it will be
shown how important it is to continue the outreach efforts and outline the various steps the
District has taken to educate people on the benefits of reuse.
Introduction
The Orange County Water District manages a very large groundwater basin (basin) in central
and north Orange County in the state of California, U.S.A. It was created by the State
Legislature in 1933 for that purpose and is governed by a 10-member Board of Directors that
sets policy, establishes the amount of pumping out of the basin and sets tariffs. The District
currently has set the amount of groundwater that can be pumped out of the basin at 77% of the
total water demands for its 19 retail agencies which serve 2.5 million people. The remaining
23% of its water supply is dependent on water that is imported into the region.
The Southern California region has a semi-arid climate, which receives approximately 355 mm
of rainfall per year. Most of its water is imported from two primary outside sources, the
Colorado River and the Sacramento-San Joaquin Delta (the Delta) in Northern California. The
Metropolitan Water District of Southern California (MWD) built a 320 km aqueduct in the
1930’s bringing water from the Colorado River into Southern California and then participated in
the building of a 640 km aqueduct in the 1960’s from Northern California to bring water from
the Delta to Southern California. These supplies are enough to meet the water demands in
most years, but they are variable and the amount of water through these systems is dependent
on hydrology and certainly in the future, climate change.
Groundwater basins provide an important source of supplemental supply to the imported water
provided by MWD. A sustainably managed basin can provide a reliable source of low-cost
water, with groundwater costing half as much as imported water. The Orange County Water
District relies on rainfall, stormwater capture, Santa Ana River flows, untreated imported water
and recycled water for refilling its basin. This amount of water.
1 How to Overcome Public Perception Issues on Potable R.docxjeremylockett77
1
How to Overcome Public Perception Issues on Potable Reuse Projects
Michael R. Markus, P.E., Orange County Water District, Fountain Valley, CA
Eleanor Torres, Orange County Water District, Fountain Valley, CA
Abstract
The purpose of this paper is to provide an overview of how the Orange County Water District
(the District; OCWD) was able to insulate itself from public opposition to its potable reuse
project, the Groundwater Replenishment System (GWRS).
To understand what challenges the District would be facing it is important to first understand
what was happening with other projects that were being developed at the same time in
Southern California. Second, it is important to understand the process by which the outreach
program was developed and how it was executed. That program was ongoing and changed
with the project to help anticipate and react to various issues that developed. Finally, it will be
shown how important it is to continue the outreach efforts and outline the various steps the
District has taken to educate people on the benefits of reuse.
Introduction
The Orange County Water District manages a very large groundwater basin (basin) in central
and north Orange County in the state of California, U.S.A. It was created by the State
Legislature in 1933 for that purpose and is governed by a 10-member Board of Directors that
sets policy, establishes the amount of pumping out of the basin and sets tariffs. The District
currently has set the amount of groundwater that can be pumped out of the basin at 77% of the
total water demands for its 19 retail agencies which serve 2.5 million people. The remaining
23% of its water supply is dependent on water that is imported into the region.
The Southern California region has a semi-arid climate, which receives approximately 355 mm
of rainfall per year. Most of its water is imported from two primary outside sources, the
Colorado River and the Sacramento-San Joaquin Delta (the Delta) in Northern California. The
Metropolitan Water District of Southern California (MWD) built a 320 km aqueduct in the
1930’s bringing water from the Colorado River into Southern California and then participated in
the building of a 640 km aqueduct in the 1960’s from Northern California to bring water from
the Delta to Southern California. These supplies are enough to meet the water demands in
most years, but they are variable and the amount of water through these systems is dependent
on hydrology and certainly in the future, climate change.
Groundwater basins provide an important source of supplemental supply to the imported water
provided by MWD. A sustainably managed basin can provide a reliable source of low-cost
water, with groundwater costing half as much as imported water. The Orange County Water
District relies on rainfall, stormwater capture, Santa Ana River flows, untreated imported water
and recycled water for refilling its basin. This amount of water ...
2018 GIS in Conservation: The Effect of Channel Migration on Riparian Vegetat...GIS in the Rockies
Historically, the South Platte River in Colorado has experienced substantial inter-annual flow variability, but due to water management over the last century, there has been a parallel rise in ground and surface water level consistency. This is problematic for the dominant riparian vegetation of the region, the disturbance-dependent cottonwood, which relies on frequent flood events to clear vegetation to allow for the growth of new trees along the riverbank. Through this research, we attempt to understand the patterns and dynamics of the South Platte River’s riparian vegetation to aid resource management. This research focuses on channel migration dynamics and how these impact adjacent riparian vegetation. To study this, we digitized riparian vegetation using orthophotos at roughly decade increments for a 30 km section of the South Platte in Weld and Morgan counties. We measured changes to riparian vegetation composition and channel locations. Preliminary results show that from 1999 to 2006, a period of overall low flow and drought conditions, this section of river experienced a narrowing of the active channel by 11%. This narrowing was accompanied by an expansion of forest, riparian shrub, and herbaceous vegetation. From 2006 to 2015, a period of time that included high flows and two major flood events, we observed channel expansion of 24%. This was accompanied by decreases in forests, riparian shrubs, and herbaceous cover.
Concerns for Aggregate pits and groundwater protection in Ontario. Reviewing risks to Ontario's GDP and farmland and moraine systems in Southwestern Ontario.
Grand Lake St. Marys water quality update & The Fishes of Grand Lake St. Marys presented by Wright State University-Lake Campus' Dr. Stephen Jacquemin at the April 2021 Lake Improvement Association membership meeting. https://lakeimprovement.com
Eugene Braig, Program Director, Aquatic Ecosystems at The Ohio State University College of Food, Agricultural, and Environmental Sciences shares in-depth information regarding the harmful algal blooms (HABs) on Grand Lake St. Marys. Learn more at http://www.lakeimprovement.com.
Find out what has been done in the watershed to improve the water quality in Grand Lake St. Marys in this presentation given to the Lake Improvement Association by ODNR Dept. of Soil and Water's Terry Mescher and Frances Springer. Learn more at http://www.lakeimprovement.com.
Epcon is One of the World's leading Manufacturing Companies.EpconLP
Epcon is One of the World's leading Manufacturing Companies. With over 4000 installations worldwide, EPCON has been pioneering new techniques since 1977 that have become industry standards now. Founded in 1977, Epcon has grown from a one-man operation to a global leader in developing and manufacturing innovative air pollution control technology and industrial heating equipment.
Top 8 Strategies for Effective Sustainable Waste Management.pdfJhon Wick
Discover top strategies for effective sustainable waste management, including product removal and product destruction. Learn how to reduce, reuse, recycle, compost, implement waste segregation, and explore innovative technologies for a greener future.
Presented by The Global Peatlands Assessment: Mapping, Policy, and Action at GLF Peatlands 2024 - The Global Peatlands Assessment: Mapping, Policy, and Action
WRI’s brand new “Food Service Playbook for Promoting Sustainable Food Choices” gives food service operators the very latest strategies for creating dining environments that empower consumers to choose sustainable, plant-rich dishes. This research builds off our first guide for food service, now with industry experience and insights from nearly 350 academic trials.
Climate Change All over the World .pptxsairaanwer024
Climate change refers to significant and lasting changes in the average weather patterns over periods ranging from decades to millions of years. It encompasses both global warming driven by human emissions of greenhouse gases and the resulting large-scale shifts in weather patterns. While climate change is a natural phenomenon, human activities, particularly since the Industrial Revolution, have accelerated its pace and intensity
different Modes of Insect Plant InteractionArchita Das
different modes of interaction between insects and plants including mutualism, commensalism, antagonism, Pairwise and diffuse coevolution, Plant defenses, how coevolution started
"Understanding the Carbon Cycle: Processes, Human Impacts, and Strategies for...MMariSelvam4
The carbon cycle is a critical component of Earth's environmental system, governing the movement and transformation of carbon through various reservoirs, including the atmosphere, oceans, soil, and living organisms. This complex cycle involves several key processes such as photosynthesis, respiration, decomposition, and carbon sequestration, each contributing to the regulation of carbon levels on the planet.
Human activities, particularly fossil fuel combustion and deforestation, have significantly altered the natural carbon cycle, leading to increased atmospheric carbon dioxide concentrations and driving climate change. Understanding the intricacies of the carbon cycle is essential for assessing the impacts of these changes and developing effective mitigation strategies.
By studying the carbon cycle, scientists can identify carbon sources and sinks, measure carbon fluxes, and predict future trends. This knowledge is crucial for crafting policies aimed at reducing carbon emissions, enhancing carbon storage, and promoting sustainable practices. The carbon cycle's interplay with climate systems, ecosystems, and human activities underscores its importance in maintaining a stable and healthy planet.
In-depth exploration of the carbon cycle reveals the delicate balance required to sustain life and the urgent need to address anthropogenic influences. Through research, education, and policy, we can work towards restoring equilibrium in the carbon cycle and ensuring a sustainable future for generations to come.
Improving the viability of probiotics by encapsulation methods for developmen...Open Access Research Paper
The popularity of functional foods among scientists and common people has been increasing day by day. Awareness and modernization make the consumer think better regarding food and nutrition. Now a day’s individual knows very well about the relation between food consumption and disease prevalence. Humans have a diversity of microbes in the gut that together form the gut microflora. Probiotics are the health-promoting live microbial cells improve host health through gut and brain connection and fighting against harmful bacteria. Bifidobacterium and Lactobacillus are the two bacterial genera which are considered to be probiotic. These good bacteria are facing challenges of viability. There are so many factors such as sensitivity to heat, pH, acidity, osmotic effect, mechanical shear, chemical components, freezing and storage time as well which affects the viability of probiotics in the dairy food matrix as well as in the gut. Multiple efforts have been done in the past and ongoing in present for these beneficial microbial population stability until their destination in the gut. One of a useful technique known as microencapsulation makes the probiotic effective in the diversified conditions and maintain these microbe’s community to the optimum level for achieving targeted benefits. Dairy products are found to be an ideal vehicle for probiotic incorporation. It has been seen that the encapsulated microbial cells show higher viability than the free cells in different processing and storage conditions as well as against bile salts in the gut. They make the food functional when incorporated, without affecting the product sensory characteristics.
Microbial characterisation and identification, and potability of River Kuywa ...Open Access Research Paper
Water contamination is one of the major causes of water borne diseases worldwide. In Kenya, approximately 43% of people lack access to potable water due to human contamination. River Kuywa water is currently experiencing contamination due to human activities. Its water is widely used for domestic, agricultural, industrial and recreational purposes. This study aimed at characterizing bacteria and fungi in river Kuywa water. Water samples were randomly collected from four sites of the river: site A (Matisi), site B (Ngwelo), site C (Nzoia water pump) and site D (Chalicha), during the dry season (January-March 2018) and wet season (April-July 2018) and were transported to Maseno University Microbiology and plant pathology laboratory for analysis. The characterization and identification of bacteria and fungi were carried out using standard microbiological techniques. Nine bacterial genera and three fungi were identified from Kuywa river water. Clostridium spp., Staphylococcus spp., Enterobacter spp., Streptococcus spp., E. coli, Klebsiella spp., Shigella spp., Proteus spp. and Salmonella spp. Fungi were Fusarium oxysporum, Aspergillus flavus complex and Penicillium species. Wet season recorded highest bacterial and fungal counts (6.61-7.66 and 3.83-6.75cfu/ml) respectively. The results indicated that the river Kuywa water is polluted and therefore unsafe for human consumption before treatment. It is therefore recommended that the communities to ensure that they boil water especially for drinking.
Microbial characterisation and identification, and potability of River Kuywa ...
Grand Lake St. Marys Water Quality Update: 2021 in Review
1. GRAND LAKE ST MARYS WATER QUALITY UPDATE –
2021 IN REVIEW
STEPHEN J. JACQUEMIN
WRIGHT STATE UNIVERSITY – LAKE CAMPUS,
AGRICULTURAL AND WATER QUALITY EDUCATIONAL CENTER
2. 2021 Grand Lake St Marys Watershed Overview
- Unique Environmental Conditions
- Heavy ice pack that stayed on longer than normal
- Low spring external loading & High summer internal loading
- High fall external loading
- Tremendous Shifts in Algal Community
- Low PAR coming through ice pack reduced ‘resident BG’
- Low external loads maintained low growth rates
- High internal loads created shift in algal until reaching ‘typical’ in August
- Lowest Year in a Decade for Total Microcystin Toxins
- Unclear whether BG present was non toxic strain OR N availability changed
- Continued Efficacy of Tributary Wetlands
- Great concentration reductions
- Record pumping rates
- Continued Expansion of Wetlands in the Watershed
- Burntwood Creek Langenkamp Project
- Mercer County Wastewater Plant
- Formal Documentation of GLSM
- Numerous publications are forthcoming about natural history and
environmental restoration of the watershed
5. Images Courtesy of
OEPA and NOAA
Collaborative
Satellite Monitoring
Program
May 11, 2021
August 29, 2021 October 20, 2021
2021 Shifts in Algal Community
May 23, 2021 June 15, 2021 July 15, 2021
August 5, 2021
9. 2021 GLSM Total Microcystin Data
Why Low Toxicity?
- Not all blooms are toxic
- It is possible to have high biomass but low toxicity
- Often complicated result of nutrient limitation
- Microcystin is not the only toxin capable of being produced
10. Coldwater Creek, Prairie Creek, Beaver Creek
- Pumping rates were consistent or higher than past years
- Achieved similarly high or higher reductions in dissolved P, total P, nitrate, and sediment
- Up to 95% reduction in concentrations
- Translated to tremendous load reductions similar or higher than last year
- Continue to operate at a relatively footprint and achieve high effect
- Formal summary coming in February 2022
Wetland Updates
11. Burntwood Creek Langenkamp
Restored Wetland
- Funded through H2Ohio
- Construction underway and to be completed
2021
- ~90 acres total with 5-10 acres trees, 10-20
acres prairie grass, 50-60 acres wetland
- Connected to Burntwood Creek via notch
expected to capture ~20 flows per year -
pump is expected for remainder
Expanding Wetlands in GLSM
Gilliland Restored Wetland
- Funded through conservation grant
- Construction underwater and to be completed
2021
- 2.0 acres wetland, 1.5 acres trees, 5.5 acres
prairie grass
- Connected to lake via water control structure
to allow exchange of water
- Located west of Club Island by existing
preserve
Montezuma Club Island Wastewater
Treatment Plant Wetland
- Locally Funded Project - Construction
completed 2020/21
- 2.5 acre wetland
- Connected to treatment plant processing cell
via water control structure - processes ~100K
gal/day
- Preliminary results from summer monitoring
are mixed for dissolved P - eager for year 2
- Located adjacent to current WWTP
12. Documentation of a massive lake wide
fish die off on Grand Lake St Marys
with notes on long-term changes in the
fish assemblage and habitat in the
watershed over the past century
- Coauthored with M. Cubberley
- Complete long term overview description of
habitat in GLSM watershed
- In depth discussion of fish assemblages over
the past 150+ years in the watershed
- In depth description of modern fish
assemblages of the lake
- Accepted for publication in ‘The American
Midland Naturalist’
Improving the Documentation of GLSM Environment
On the Potential for Reconstructed
Wetlands to Remediate Fecal Coliform
Loading in an Agricultural Watershed
- Coauthored with S. Newell and six undergraduate
students from Wright State
- Documentation of coliform runoff patterns and
linkages with surrounding watershed
- Documentation of fecal coliform remediation
potential of wetlands (Coldwater Creek)
- Findings that wetland efficacy driven by residence
time and plant growth activity with capacity to
reduce concentrations by an average of 40%
- Manuscript submitted for Review
Exploring long term trends in
microcystin toxin values associated with
persistent harmful algal blooms in
Grand Lake St Marys
- Coauthored with S. Newell (Wright State), J.
Doll (Francis Marion), L. Johnson (NCWQR)
- Establishes environmental covariates in a
functional model that explains long term
trends in microcystin toxins
- Using variation in lake conditions as well as
tributary inflow to model toxins and discern
the why that underpins the toxin number
- Manuscript currently In Preparation
13. GRAND LAKE ST MARYS WATER QUALITY UPDATE –
2021 IN REVIEW
STEPHEN J. JACQUEMIN
WRIGHT STATE UNIVERSITY – LAKE CAMPUS,
AGRICULTURAL AND WATER QUALITY EDUCATIONAL CENTER