Development of a Field-Scale Research Facility to Assess the Effects of Sea L...RachelMordovancey
This project encapsulated engineering and ecological design to develop a site for a sea level rise research facility in the Santee Experimental Forest in Huger, SC.
The document outlines plans to develop a field-scale research facility to study the effects of sea level rise on freshwater bottomland hardwood forests. It will include two experimental sites - one tidally influenced sub-catchment channel and one non-tidal controlled rice field. Researchers will monitor vegetation response, soil response, and hydrologic response to changes in sea level. The facility will be designed and modeled using software like ArcGIS, HEC-RAS, and AutoCAD to control water flows and mimic rising sea levels. Literature on local hydrology, tidal patterns, and previous mesocosm experiments will inform the facility's design.
The document proposes developing a field-scale research facility to study the effects of sea level rise on freshwater bottomland hardwood forests. It outlines:
1. Taking a representative area of a freshwater tidal wetland and manipulating its water levels to gain data on ecosystem responses to sea level rise.
2. The facility will test the hypothesis that as sea levels rise and hydroperiods change, these wetlands will shift in type and previously non-tidal wetlands will become tidally influenced.
3. The objectives are to design water control structures, develop an operational plan, and produce a site plan for the research area located in a bottomland hardwood forest in South Carolina.
The document outlines plans to design a field-scale research facility to study the effects of sea level rise on freshwater bottomland hardwood forests. It discusses selecting a site location within an existing forested wetland and designing the facility to manipulate water levels and mimic predicted tidal influences from rising sea levels. Literature on site hydrology, tidal patterns, and previous mesocosm experiments is reviewed to inform the design. Methods, preliminary results of modeling water flows and site layout, and cost estimates are provided. The goal is to gain critical data on vegetation, soil, and hydrologic responses to help improve models of how ecosystem services may be impacted by climate change.
The document outlines plans to design a field-scale research facility to study the effects of sea level rise on freshwater bottomland hardwood forests. It discusses selecting a site location within an existing forested wetland and designing infrastructure like water control structures to manipulate water levels and mimic predicted tidal influences under sea level rise. The facility aims to provide data on vegetation, soil, and hydrologic responses to help improve models of how rising seas may impact ecosystem services provided by wetlands.
The team designed a field-scale research facility to study the impacts of sea level rise on freshwater bottomland hardwood forests. They evaluated two site options and recommended a non-tidal controlled rice field site. The team developed a site plan using modeling software, including elevating existing berms, installing a pump station and pipe system, and designing a hydraulic weir structure controlled by a motorized gate. A cost assessment was conducted. The facility aims to monitor vegetation, soil, and hydrologic responses to changed hydroperiods from sea level rise.
The team designed a field-scale research facility to study the impacts of sea level rise on freshwater bottomland hardwood forests. They considered two site options and selected non-tidal controlled rice fields based on criteria like existing infrastructure. The designed facility includes upgrading berms, installing a water control structure, and a pump station to manipulate hydroperiods. Models were developed to inform the design and assess costs. The recommendations were to implement the rice field site to gain data on vegetation, soil, and hydrologic responses to changed conditions from sea level rise.
Development of a Field-Scale Research Facility to Assess the Effects of Sea L...RachelMordovancey
This project encapsulated engineering and ecological design to develop a site for a sea level rise research facility in the Santee Experimental Forest in Huger, SC.
The document outlines plans to develop a field-scale research facility to study the effects of sea level rise on freshwater bottomland hardwood forests. It will include two experimental sites - one tidally influenced sub-catchment channel and one non-tidal controlled rice field. Researchers will monitor vegetation response, soil response, and hydrologic response to changes in sea level. The facility will be designed and modeled using software like ArcGIS, HEC-RAS, and AutoCAD to control water flows and mimic rising sea levels. Literature on local hydrology, tidal patterns, and previous mesocosm experiments will inform the facility's design.
The document proposes developing a field-scale research facility to study the effects of sea level rise on freshwater bottomland hardwood forests. It outlines:
1. Taking a representative area of a freshwater tidal wetland and manipulating its water levels to gain data on ecosystem responses to sea level rise.
2. The facility will test the hypothesis that as sea levels rise and hydroperiods change, these wetlands will shift in type and previously non-tidal wetlands will become tidally influenced.
3. The objectives are to design water control structures, develop an operational plan, and produce a site plan for the research area located in a bottomland hardwood forest in South Carolina.
The document outlines plans to design a field-scale research facility to study the effects of sea level rise on freshwater bottomland hardwood forests. It discusses selecting a site location within an existing forested wetland and designing the facility to manipulate water levels and mimic predicted tidal influences from rising sea levels. Literature on site hydrology, tidal patterns, and previous mesocosm experiments is reviewed to inform the design. Methods, preliminary results of modeling water flows and site layout, and cost estimates are provided. The goal is to gain critical data on vegetation, soil, and hydrologic responses to help improve models of how ecosystem services may be impacted by climate change.
The document outlines plans to design a field-scale research facility to study the effects of sea level rise on freshwater bottomland hardwood forests. It discusses selecting a site location within an existing forested wetland and designing infrastructure like water control structures to manipulate water levels and mimic predicted tidal influences under sea level rise. The facility aims to provide data on vegetation, soil, and hydrologic responses to help improve models of how rising seas may impact ecosystem services provided by wetlands.
The team designed a field-scale research facility to study the impacts of sea level rise on freshwater bottomland hardwood forests. They evaluated two site options and recommended a non-tidal controlled rice field site. The team developed a site plan using modeling software, including elevating existing berms, installing a pump station and pipe system, and designing a hydraulic weir structure controlled by a motorized gate. A cost assessment was conducted. The facility aims to monitor vegetation, soil, and hydrologic responses to changed hydroperiods from sea level rise.
The team designed a field-scale research facility to study the impacts of sea level rise on freshwater bottomland hardwood forests. They considered two site options and selected non-tidal controlled rice fields based on criteria like existing infrastructure. The designed facility includes upgrading berms, installing a water control structure, and a pump station to manipulate hydroperiods. Models were developed to inform the design and assess costs. The recommendations were to implement the rice field site to gain data on vegetation, soil, and hydrologic responses to changed conditions from sea level rise.
The document summarizes a student project to design a field-scale research facility to study the impacts of sea level rise on freshwater bottomland hardwood forests. The students proposed two site options for the facility and selected rice fields based on criteria like hydrology and existing infrastructure. Their design for the rice field site includes upgrading berms, installing a water control structure and pump, and developing plans to manipulate water levels and simulate tidal influences to study vegetation, soil, and hydrologic responses under rising sea levels. The student team collaborated to complete modeling, drawings, cost estimates, and recommendations to help implement the designed facility.
Modeling the Effects of Land Use Change on FloodingAdam Nayak
Due to population growth, urban areas in Oregon have been expanding, leading to increases in impervious surfaces and net losses in wetlands, riparian vegetation, and forestation in the Northwest. Utilizing ArcGIS and NOAA’s C-CAP imagery, this study classifies and analyzes urban land use changes between 1996 and 2010. These findings shed light on the importance of land use management in urban settings and are being used by local watershed councils to advocate for changes within their stream basins.
Estimation of Groundwater Recharge Using WetSpass and MODFLOWPutika Ashfar Khoiri
The document discusses methods for estimating groundwater recharge using the WetSpass and MODFLOW models. WetSpass is a physically based model that uses inputs like land use, soil type, and climate data to calculate spatial patterns of evapotranspiration, surface runoff, and groundwater recharge. The recharge output from WetSpass is then used as input for the MODFLOW groundwater flow model. Together, WetSpass and MODFLOW allow for the simulation of spatially variable recharge and groundwater flow.
Modelling of a Coastal Aquifer using FEFLOWC. P. Kumar
This document summarizes a study on modelling coastal aquifer seawater intrusion using FEFLOW software. The study area is along the coast of North Goa, India where increasing groundwater extraction is causing intrusion. The objectives are to simulate intrusion under pumping scenarios, identify sensitive parameters, and suggest remedial measures. Field investigations were conducted to collect data on groundwater levels, quality and resistivity. A 3D finite element model was set up and calibrated. Results show intrusion currently extends 290m inland but could advance farther with lower rainfall or increased pumping. Sensitive parameters include hydraulic conductivity, dispersivity and rainfall. Continuous monitoring and groundwater management are recommended.
This document discusses methods for estimating groundwater potential and balance. It provides an overview of key concepts like the hydrologic cycle, national water policy regarding groundwater, and the groundwater balance equation. The document also outlines data requirements, methodology, and methods for estimating individual components of the groundwater balance like recharge from rainfall, recharge from canals, and evapotranspiration from groundwater. Empirical formulas and norms from expert committees are presented for calculating various recharge coefficients.
The document summarizes the unprecedented scale of ongoing sediment clean-ups through the Superfund program in the New York/New Jersey Harbor Estuary. It notes that proposed remedies for 6 contaminated sediment sites will remove over 5 million cubic yards of sediment through dredging. Managing these sites separately under Superfund is inefficient and costly. The document argues that a regional sediment management framework should be adopted to better coordinate remediation, reduce impacts, and promote beneficial reuse of sediments. Integrating Superfund sites into an existing regional sediment management plan could enhance socioeconomic benefits while providing more sustainable outcomes through innovative technologies and green remediation approaches.
The document summarizes the unprecedented scale of ongoing sediment clean-ups through the Superfund program in the New York/New Jersey Harbor Estuary. It notes that proposed remedies for 6 contaminated sediment sites will remove over 5 million cubic yards of sediment through dredging. Managing these sites separately under Superfund is inefficient and costly. The document argues that a regional sediment management framework should be adopted to better coordinate remediation, reduce impacts, and promote beneficial reuse of sediments. Integrating Superfund sites into an existing regional sediment management plan could enhance socioeconomic benefits while providing more sustainable outcomes through innovative technologies and green remediation approaches.
Aquifer mapping is a multidisciplinary scientific process wherein a combination of geological, hydrogeological, geophysical, hydrological, and quality data are integrated to characterize the quantity, quality and movement of ground water in aquifers.
The document describes various methods of irrigation including check flooding, basin flooding, furrow irrigation, subsurface irrigation, sprinkler irrigation, and drip/trickle irrigation. Check flooding involves enclosing level plots with small levees and flooding the enclosed area with irrigation water. Basin flooding is a type of check flooding used for orchard trees, with one or more trees placed in flooded basins. Furrow irrigation involves creating small parallel channels for water to flow down the field. Subsurface irrigation applies water from beneath the soil surface using trenches or perforated pipes. Sprinkler irrigation sprays water into the air to break into small drops and fall to the ground, similar to natural rainfall. Drip/trickle irrigation slowly applies water
An integrated groundwater-surface water model was developed for the proposed Babcock Ranch development site in Lee County, Florida using the GSFLOW code. The model was calibrated to streamflow, groundwater levels, and wetland stage data. Model results showed that the proposed stormwater management system is expected to improve wetland hydroperiods and buffer peak flows compared to current and natural conditions. The calibrated integrated model provides a tool to evaluate the impacts of land development and climate change on the groundwater and surface water system.
The document discusses modeling of seawater intrusion in coastal aquifers. It provides background on seawater intrusion as a natural process driven by density differences between fresh and saltwater. It describes various numerical models that can be used to simulate variable density groundwater flow and solute transport, including SEAWAT, SUTRA and MODFLOW. As an example application, it summarizes a study that used SUTRA to model seawater intrusion and the influence of tides on the fresh water resources of Nauru Island. The study found tidal forcing significantly reduced the size of the freshwater lens.
Jason Winner, Conservation GIS Manager for Scenic Hudson presents on the new Sea Level Rise Mapper.
The mapper is a tool for communities and stakeholders to use to create visualizations of future scenarios of sea level rise. With these maps and information, Scenic Hudson is supporting communities' efforts to develop adaptation plans by helping them to:
- create maps of the extent and impacts of inundation and flood zone expansion
- understand the locations of key built and natural resources
- create graphics that illustrate different sea level rise scenarios in specific communities or stretches of the river
- estimate the risks to infrastructure and natural resources and the likelihoods of different inundation events
- develop alternative adaptation scenarios and weigh their cost and benefits with respect to built infrastructure and natural resources
** The Sea Level Rise Mapper can be found on Scenic Hudson's website at: http://www.scenichudson.org/slr/mapper
For more information, contact Jason Winner at Scenic Hudson at (845) 473-4440 ext 223, or jwinner@scenichudson.org
ARMF 2014 Employment of Proactive Mitigation Strategies in Combination with R...Janna Ellis Kepley
Proactive mitigation strategies like Everglades restoration are needed to counteract sea level rise in Florida in the long run. Reactive barriers will still be necessary in the short term to protect against coastal damage from storms and flooding. A combination of proactive and reactive strategies is recommended, including continuing Everglades restoration projects and updating infrastructure, while also maintaining some reactive barriers. Everglades restoration provides significant economic benefits compared to costs and helps mitigate effects of sea level rise like saltwater intrusion.
This document discusses applications of integrated surface water/groundwater modeling techniques using the GSFLOW model. It summarizes three case studies: 1) assessing the hydrologic impacts of a large urban development, 2) evaluating interactions between a municipal wellfield and nearby surface water features, and 3) determining linkages between groundwater recharge and surface water features. The case studies demonstrate how GSFLOW can be used as a practical tool to solve complex water resource management problems through integrated modeling of hydrologic and groundwater systems.
The document discusses methods for estimating groundwater resources using the GEC-1997 methodology. It describes estimating various components of groundwater inflow and outflow, including precipitation, surface runoff, evapotranspiration, groundwater draft, and recharge from sources like canals, irrigation, and water structures. Key steps involve computing groundwater draft, recharge from other sources, rainfall recharge, and summary details to determine net groundwater availability.
This document presents a process for developing strategic watershed restoration plans in areas heavily impacted by pre-law mining in West Virginia. The process involves gathering data on stream and landscape conditions, integrating the data into a GIS model, identifying ecological and reclamation priorities to maximize fishery recovery, and developing a watershed restoration master plan. The process was applied to the Three Fork watershed, and modeling identified an optimal restoration alternative costing $4 million that was projected to recover 36 km of fisheries and provide $700,000 in benefits over 20 years. The process can help objectively target limited restoration funds to maximize ecological outcomes.
This document summarizes an assessment of low impact development (LID) strategies using integrated surface water and groundwater models. The assessment evaluated various LID configurations for a proposed new development in Ontario to determine which strategies should be used and where to best preserve wetlands and aquifers. Modeling indicated that unmitigated development could lower aquifer levels but that LIDs like bioswales and infiltration galleries could sustain groundwater recharge and mitigate impacts, helping the municipality and conservation authority evaluate LID scenarios.
Groundwater Data Requirement and AnalysisC. P. Kumar
The document discusses groundwater data requirements, acquisition, processing, and analysis. It outlines the types of physical and hydrological data needed for groundwater studies, including maps, cross-sections, and time-series data on water levels, quality, pumping, and other factors. Key points covered include establishing monitoring networks, validating data, preparing hydrographs, water table maps, and other tools to characterize the groundwater system and identify issues like contamination or over-pumping. Statistical methods for interpolating hydrological variables from point data across regions are also summarized.
The document describes an integrated groundwater and surface water modelling study conducted for York Region, Ontario, Canada. Key aspects of the study included:
1) Developing a fully integrated groundwater/surface water model using GSFLOW to simulate the complex hydrogeologic setting and assess wellfield sustainability under future development and drought scenarios.
2) Updating the conceptual geologic model and refining the model layers based on new data.
3) Calibrating the hydrology component (PRMS) to water levels, climate data, and the groundwater component (MODFLOW) to estimated baseflows.
4) Applying the integrated model to assess vulnerable areas and the impacts of future pumping and land use
This document discusses using the fully-integrated GSFLOW model to analyze the impact of low impact development (LID) strategies on surface water and groundwater flow. It presents a case study of a proposed urban development and evaluates the ability of LID strategies like green roofs, bioswales, infiltration galleries and permeable pavement to mitigate impacts to groundwater levels and discharge. The results show that with LID implementation, groundwater drawdowns were reduced by 86%, groundwater discharge to streams increased by 42%, and urban runoff generation was reduced by 80% compared to development without LIDs.
South Carolina Botanical Garden Detention Pond Implementation and Prairie Res...Jacobsimmons007
The document outlines the design of a detention pond and prairie restoration project at the South Carolina Botanical Garden. It provides background on the site and issues with excessive stormwater runoff overwhelming existing drainage systems. The objectives are to construct a detention pond to reduce runoff and restore a former pesticide testing field to native prairie. Methods included modeling watershed hydrology, designing the pond dimensions and outlet structure, and developing a prairie restoration plan. Results showed the detention pond would significantly reduce peak runoff flows and volumes compared to pre-development conditions.
Capstone Senior Design Final PresentationNatalieDell2
The document outlines a project to design and implement a detention pond and prairie restoration at the South Carolina Botanical Garden. It provides background on the site and issues with excessive stormwater runoff overwhelming existing drainage systems. The objectives are to design a detention pond to reduce runoff and restore a former pesticide testing field to native prairie. Methods included modeling watershed hydrology, designing the pond dimensions and outlet structure, and developing a prairie restoration plan. Results included soil analyses, delineating the watershed area, pre- and post-development hydrographs showing reduced peak runoff with the pond, and pond design specifications.
The document summarizes a student project to design a field-scale research facility to study the impacts of sea level rise on freshwater bottomland hardwood forests. The students proposed two site options for the facility and selected rice fields based on criteria like hydrology and existing infrastructure. Their design for the rice field site includes upgrading berms, installing a water control structure and pump, and developing plans to manipulate water levels and simulate tidal influences to study vegetation, soil, and hydrologic responses under rising sea levels. The student team collaborated to complete modeling, drawings, cost estimates, and recommendations to help implement the designed facility.
Modeling the Effects of Land Use Change on FloodingAdam Nayak
Due to population growth, urban areas in Oregon have been expanding, leading to increases in impervious surfaces and net losses in wetlands, riparian vegetation, and forestation in the Northwest. Utilizing ArcGIS and NOAA’s C-CAP imagery, this study classifies and analyzes urban land use changes between 1996 and 2010. These findings shed light on the importance of land use management in urban settings and are being used by local watershed councils to advocate for changes within their stream basins.
Estimation of Groundwater Recharge Using WetSpass and MODFLOWPutika Ashfar Khoiri
The document discusses methods for estimating groundwater recharge using the WetSpass and MODFLOW models. WetSpass is a physically based model that uses inputs like land use, soil type, and climate data to calculate spatial patterns of evapotranspiration, surface runoff, and groundwater recharge. The recharge output from WetSpass is then used as input for the MODFLOW groundwater flow model. Together, WetSpass and MODFLOW allow for the simulation of spatially variable recharge and groundwater flow.
Modelling of a Coastal Aquifer using FEFLOWC. P. Kumar
This document summarizes a study on modelling coastal aquifer seawater intrusion using FEFLOW software. The study area is along the coast of North Goa, India where increasing groundwater extraction is causing intrusion. The objectives are to simulate intrusion under pumping scenarios, identify sensitive parameters, and suggest remedial measures. Field investigations were conducted to collect data on groundwater levels, quality and resistivity. A 3D finite element model was set up and calibrated. Results show intrusion currently extends 290m inland but could advance farther with lower rainfall or increased pumping. Sensitive parameters include hydraulic conductivity, dispersivity and rainfall. Continuous monitoring and groundwater management are recommended.
This document discusses methods for estimating groundwater potential and balance. It provides an overview of key concepts like the hydrologic cycle, national water policy regarding groundwater, and the groundwater balance equation. The document also outlines data requirements, methodology, and methods for estimating individual components of the groundwater balance like recharge from rainfall, recharge from canals, and evapotranspiration from groundwater. Empirical formulas and norms from expert committees are presented for calculating various recharge coefficients.
The document summarizes the unprecedented scale of ongoing sediment clean-ups through the Superfund program in the New York/New Jersey Harbor Estuary. It notes that proposed remedies for 6 contaminated sediment sites will remove over 5 million cubic yards of sediment through dredging. Managing these sites separately under Superfund is inefficient and costly. The document argues that a regional sediment management framework should be adopted to better coordinate remediation, reduce impacts, and promote beneficial reuse of sediments. Integrating Superfund sites into an existing regional sediment management plan could enhance socioeconomic benefits while providing more sustainable outcomes through innovative technologies and green remediation approaches.
The document summarizes the unprecedented scale of ongoing sediment clean-ups through the Superfund program in the New York/New Jersey Harbor Estuary. It notes that proposed remedies for 6 contaminated sediment sites will remove over 5 million cubic yards of sediment through dredging. Managing these sites separately under Superfund is inefficient and costly. The document argues that a regional sediment management framework should be adopted to better coordinate remediation, reduce impacts, and promote beneficial reuse of sediments. Integrating Superfund sites into an existing regional sediment management plan could enhance socioeconomic benefits while providing more sustainable outcomes through innovative technologies and green remediation approaches.
Aquifer mapping is a multidisciplinary scientific process wherein a combination of geological, hydrogeological, geophysical, hydrological, and quality data are integrated to characterize the quantity, quality and movement of ground water in aquifers.
The document describes various methods of irrigation including check flooding, basin flooding, furrow irrigation, subsurface irrigation, sprinkler irrigation, and drip/trickle irrigation. Check flooding involves enclosing level plots with small levees and flooding the enclosed area with irrigation water. Basin flooding is a type of check flooding used for orchard trees, with one or more trees placed in flooded basins. Furrow irrigation involves creating small parallel channels for water to flow down the field. Subsurface irrigation applies water from beneath the soil surface using trenches or perforated pipes. Sprinkler irrigation sprays water into the air to break into small drops and fall to the ground, similar to natural rainfall. Drip/trickle irrigation slowly applies water
An integrated groundwater-surface water model was developed for the proposed Babcock Ranch development site in Lee County, Florida using the GSFLOW code. The model was calibrated to streamflow, groundwater levels, and wetland stage data. Model results showed that the proposed stormwater management system is expected to improve wetland hydroperiods and buffer peak flows compared to current and natural conditions. The calibrated integrated model provides a tool to evaluate the impacts of land development and climate change on the groundwater and surface water system.
The document discusses modeling of seawater intrusion in coastal aquifers. It provides background on seawater intrusion as a natural process driven by density differences between fresh and saltwater. It describes various numerical models that can be used to simulate variable density groundwater flow and solute transport, including SEAWAT, SUTRA and MODFLOW. As an example application, it summarizes a study that used SUTRA to model seawater intrusion and the influence of tides on the fresh water resources of Nauru Island. The study found tidal forcing significantly reduced the size of the freshwater lens.
Jason Winner, Conservation GIS Manager for Scenic Hudson presents on the new Sea Level Rise Mapper.
The mapper is a tool for communities and stakeholders to use to create visualizations of future scenarios of sea level rise. With these maps and information, Scenic Hudson is supporting communities' efforts to develop adaptation plans by helping them to:
- create maps of the extent and impacts of inundation and flood zone expansion
- understand the locations of key built and natural resources
- create graphics that illustrate different sea level rise scenarios in specific communities or stretches of the river
- estimate the risks to infrastructure and natural resources and the likelihoods of different inundation events
- develop alternative adaptation scenarios and weigh their cost and benefits with respect to built infrastructure and natural resources
** The Sea Level Rise Mapper can be found on Scenic Hudson's website at: http://www.scenichudson.org/slr/mapper
For more information, contact Jason Winner at Scenic Hudson at (845) 473-4440 ext 223, or jwinner@scenichudson.org
ARMF 2014 Employment of Proactive Mitigation Strategies in Combination with R...Janna Ellis Kepley
Proactive mitigation strategies like Everglades restoration are needed to counteract sea level rise in Florida in the long run. Reactive barriers will still be necessary in the short term to protect against coastal damage from storms and flooding. A combination of proactive and reactive strategies is recommended, including continuing Everglades restoration projects and updating infrastructure, while also maintaining some reactive barriers. Everglades restoration provides significant economic benefits compared to costs and helps mitigate effects of sea level rise like saltwater intrusion.
This document discusses applications of integrated surface water/groundwater modeling techniques using the GSFLOW model. It summarizes three case studies: 1) assessing the hydrologic impacts of a large urban development, 2) evaluating interactions between a municipal wellfield and nearby surface water features, and 3) determining linkages between groundwater recharge and surface water features. The case studies demonstrate how GSFLOW can be used as a practical tool to solve complex water resource management problems through integrated modeling of hydrologic and groundwater systems.
The document discusses methods for estimating groundwater resources using the GEC-1997 methodology. It describes estimating various components of groundwater inflow and outflow, including precipitation, surface runoff, evapotranspiration, groundwater draft, and recharge from sources like canals, irrigation, and water structures. Key steps involve computing groundwater draft, recharge from other sources, rainfall recharge, and summary details to determine net groundwater availability.
This document presents a process for developing strategic watershed restoration plans in areas heavily impacted by pre-law mining in West Virginia. The process involves gathering data on stream and landscape conditions, integrating the data into a GIS model, identifying ecological and reclamation priorities to maximize fishery recovery, and developing a watershed restoration master plan. The process was applied to the Three Fork watershed, and modeling identified an optimal restoration alternative costing $4 million that was projected to recover 36 km of fisheries and provide $700,000 in benefits over 20 years. The process can help objectively target limited restoration funds to maximize ecological outcomes.
This document summarizes an assessment of low impact development (LID) strategies using integrated surface water and groundwater models. The assessment evaluated various LID configurations for a proposed new development in Ontario to determine which strategies should be used and where to best preserve wetlands and aquifers. Modeling indicated that unmitigated development could lower aquifer levels but that LIDs like bioswales and infiltration galleries could sustain groundwater recharge and mitigate impacts, helping the municipality and conservation authority evaluate LID scenarios.
Groundwater Data Requirement and AnalysisC. P. Kumar
The document discusses groundwater data requirements, acquisition, processing, and analysis. It outlines the types of physical and hydrological data needed for groundwater studies, including maps, cross-sections, and time-series data on water levels, quality, pumping, and other factors. Key points covered include establishing monitoring networks, validating data, preparing hydrographs, water table maps, and other tools to characterize the groundwater system and identify issues like contamination or over-pumping. Statistical methods for interpolating hydrological variables from point data across regions are also summarized.
The document describes an integrated groundwater and surface water modelling study conducted for York Region, Ontario, Canada. Key aspects of the study included:
1) Developing a fully integrated groundwater/surface water model using GSFLOW to simulate the complex hydrogeologic setting and assess wellfield sustainability under future development and drought scenarios.
2) Updating the conceptual geologic model and refining the model layers based on new data.
3) Calibrating the hydrology component (PRMS) to water levels, climate data, and the groundwater component (MODFLOW) to estimated baseflows.
4) Applying the integrated model to assess vulnerable areas and the impacts of future pumping and land use
This document discusses using the fully-integrated GSFLOW model to analyze the impact of low impact development (LID) strategies on surface water and groundwater flow. It presents a case study of a proposed urban development and evaluates the ability of LID strategies like green roofs, bioswales, infiltration galleries and permeable pavement to mitigate impacts to groundwater levels and discharge. The results show that with LID implementation, groundwater drawdowns were reduced by 86%, groundwater discharge to streams increased by 42%, and urban runoff generation was reduced by 80% compared to development without LIDs.
South Carolina Botanical Garden Detention Pond Implementation and Prairie Res...Jacobsimmons007
The document outlines the design of a detention pond and prairie restoration project at the South Carolina Botanical Garden. It provides background on the site and issues with excessive stormwater runoff overwhelming existing drainage systems. The objectives are to construct a detention pond to reduce runoff and restore a former pesticide testing field to native prairie. Methods included modeling watershed hydrology, designing the pond dimensions and outlet structure, and developing a prairie restoration plan. Results showed the detention pond would significantly reduce peak runoff flows and volumes compared to pre-development conditions.
Capstone Senior Design Final PresentationNatalieDell2
The document outlines a project to design and implement a detention pond and prairie restoration at the South Carolina Botanical Garden. It provides background on the site and issues with excessive stormwater runoff overwhelming existing drainage systems. The objectives are to design a detention pond to reduce runoff and restore a former pesticide testing field to native prairie. Methods included modeling watershed hydrology, designing the pond dimensions and outlet structure, and developing a prairie restoration plan. Results included soil analyses, delineating the watershed area, pre- and post-development hydrographs showing reduced peak runoff with the pond, and pond design specifications.
South Carolina Botanical Garden Detention Pond Implementation and Prairie Res...colbycofield
The document outlines a project to address stormwater issues and restore native plant habitats at the South Carolina Botanical Garden. It discusses constructing a detention pond to reduce flooding from excessive rainfall runoff. It also describes converting a former pesticide testing field into a native prairie to improve biodiversity, aesthetics and visitation. Literature on stormwater management techniques, pond design, and prairie restoration is reviewed to inform the project approaches and methods using tools like ArcGIS and HEC-1 to model hydrology and design the detention pond.
This document discusses coastal erosion issues and solutions. It outlines the importance of healthy coastlines, issues facing the South Carolina coast, and current solutions like beach nourishment and structures. Recommendations are made to use advanced mapping like LiDAR from UAVs and more accurate modeling software like MIKE21 and MIKE3 to simulate coastal processes and better inform customized solutions for specific areas like Long Beach. Preventative, rather than restorative, measures and considering untapped options like vegetation management are also recommended.
The document provides details about a wetland restoration project at the Santee Experimental Forest in South Carolina. The objectives are to restore wetlands through engineering designs that improve soil and water management. Approaches include surveying the site, analyzing soil samples, monitoring groundwater, modeling water flow, and evaluating design options based on effectiveness, cost and environmental impacts. Preliminary results show filling the degraded channel increases flooding areas while lowering water velocities, and installing a weir structure further improves hydrologic conditions for wetland restoration.
The document outlines a student capstone project to restore wetlands at the Francis Marion National Forest. The objectives are to develop engineering systems for soil and water management, design hydraulic structures, and evaluate designs based on effectiveness, cost, and environmental impacts. Approaches include surveying the site, analyzing soils, monitoring groundwater, modeling hydrology, and evaluating proposed solutions like bottom contouring, culvert removal, weirs, and low water crossings to restore the degraded hydrology and natural habitat.
The document provides a midterm presentation for a stormwater resilience design project in Mexico Beach, Florida. It outlines the background of the project, including how Hurricane Michael devastated the town in 2018. The objectives are to determine hydrologic conditions, design a stormwater wet detention pond on purchased land, and evaluate costs. Approaches include hydrologic modeling, pond design, and creating a cost estimate. Deliverables will include a stormwater management plan, pond designs, and presentation. The timeline is provided in a Gantt chart. A literature review on coastal stormwater, pond design, and Florida standards is also presented.
This document discusses zero-acreage farming solutions for food desert communities. It recognizes problems with conventional farming like land and water usage and environmental damage. The goals of the project are to select cost-efficient crops, optimize growing conditions, and implement an energy-efficient irrigation system within an indoor containment structure. The document considers an A-frame design for a zero-acreage farm in Union City, GA, a classified food desert. It selects kale, spinach, and romaine lettuce as crops based on their water and nutrient needs. The design aims to maximize space utilization and yield over 15 plants/m2 compared to conventional farming.
This document discusses zero-acreage farming solutions for food desert communities. It recognizes problems with conventional farming like extensive land and water usage and environmental damage. The goals of the project are to select cost-efficient crops, optimize growing conditions, and implement an energy-efficient irrigation system within an indoor containment structure. The design proposes a vertical A-frame system for a food desert in Union City, GA. Spinach, kale, romaine lettuce, and leafy greens are selected. The system is estimated to yield over 15 plants per square meter, significantly more than conventional horizontal farming.
The document provides details of a wetland restoration project at the Santee Experimental Forest in South Carolina. The objectives are to restore hydrology, soils, and habitat through approaches like channel filling and installing water control structures. Soil samples found sandy soils suitable for wetland growth. Modeling assessed pre-development flooding and erosion conditions and how post-development changes like channel filling and adding a weir would impact water flow and storage. The results inform the final design recommendations.
The document provides details of a wetland restoration project at the Santee Experimental Forest in South Carolina. The objectives are to restore hydrology, soils, and habitat through approaches like channel filling and installing water control structures. Soil samples found sandy soils suitable for wetland growth. Modeling assessed pre-development flooding and erosion conditions and how post-development changes like channel filling and adding a weir would impact water flow and storage. The results inform the final design recommendations.
The document outlines a wetland restoration project at the Santee Experimental Forest. The objectives are to restore wetlands through engineering designs for soil and water management, designing hydraulic structures for water flow, and evaluating designs based on effectiveness, cost and environmental impacts. Approaches include surveying the site, analyzing soil samples, measuring hydrology and modeling hydrology and sediment transport to identify the best restoration options. Literature reviewed wetland restoration techniques like bottom contouring, water control structures, and establishing vegetation. Methods discussed include soil collection, monitoring groundwater, bottom contouring of the channel, and culvert removal. AutoCAD was used to model channel dimensions and hydraulic structures.
This document discusses the impacts of data center growth on Virginia's clean energy future and outlines potential solutions. Key points:
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Similar to Wetland Restoration in an Industrial Coal Ash Pond (20)
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Date: May 29, 2024
Tags: Information Security, ISO/IEC 27001, ISO/IEC 42001, Artificial Intelligence, GDPR
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Wetland Restoration in an Industrial Coal Ash Pond
1. Wetland Restoration in an Industrial
Coal Ash Pond in Granger, SC
Paige Kimble, Rachel Mordovancy, Ramona Kahler
2. Introduction: Coal-Powered Generation
● 20% of South Carolina’s electricity is coal generated
○ Over 50% decrease in coal generation than a decade ago
● Coal power plants: organic material in coal is burned at high temperatures
● What is left is called coal ash
○ Contains concentrated amounts of arsenic, lead, mercury, and other heavy
metals along with aluminum, cobalt, manganese, zinc, etc.
■ These metals are found naturally
■ Concentrations of these materials make coal and coal ash toxic
3. Introduction: Coal-Powered Generation
Coal energy
generation
process
Photo Courtesy of
https://www.fossilconsu
lting.com/2020/01/09/s
upplanting-upgrading-
coal-ash-ponds/
4. Introduction: Coal Ash Ponds
● Less coal generation → more ash ponds
closures
● More strict mandates → more ash pond
closures
○ Two methods for closing ash ponds:
■ Cover in place - temporary but
cheap solution; allowed for lined
ash ponds
■ Closure by removal - removing
all ash and contaminated soil
● Use the land for
something else
● Convert land back to
original state
Diagram of a Cover in Place ash pond
Photo courtesy of https://www.northcarolinahealthnews.org/2018/02/18
/fate-most-duke-energy-coal-ash-uncertain/
5. Site Details
● Modeled after the Santee Cooper Ash Pond
located at closed Grainger Generating
Station
○ Original ash pond was created on a
wetland
■ Surrounding environment is suited
for wetlands (soil quality,
presence of an adjacent river,
some surrounding wetland
vegetation, etc.)
○ The groundwater is impacted by the
ash
■ Aspect of engineering
management
Santee Cooper Ash Pond located at closed Grainger
Generating Station in South Carolina
6. Closure by Removal Plan
● Detailed closure plans available online
● Ash Pond Closure Plan:
○ Dewater pond under appropriate guidelines
○ Remove ash
■ Class III landfill
■ Beneficially reuse
○ Partially fill ash pond → drainage and restoration
● Post Closure Plan
○ Ensures remediation and maintains effectiveness
○ Groundwater monitoring every 3-6 months
○ Make design corrections for erosion
Ash Pond being closed by removal
Photo courtesy of
http://www.rpmsolve.com/services/coal-
combustion-residuals
7. Wetland Restoration
Steps to Wetland Restoration:
● Evaluating Compensatory Mitigation
● Restoring Hydrology
○ Water Control Structures
○ Topography
● Restoring Native Flora
● Recovery Monitoring
8. Compensatory Mitigation
● No Net Loss of Wetlands
● Restoring a wetland is the process of
mitigation banking where mitigation credits
are earned for a wetland restoration.
● Earning mitigation credits requires an
approved, designed restoration
● Credits earned from a mitigation bank can be
sold to developers to compensate for
construction projects impacting wetlands.
● The Army Corps of Engineers and SCDHEC
monitor and approve credits
9. RIBITS
● US ACE uses the Ratio Method for quantifying wetland recovery for many locations
● The amount of credits given to a restoration project are based on the value of the wetland
and the intensity of the project (restoration, enhancement, preservation)
10. Restoring Hydrology
● One of the most important aspects of restoring a
wetland is ensuring proper hydrological periods.
● First, one must determine the volume stored in the
wetland.
● Then the water budget must be calculated.
● Factors affecting the water budget and storage.
○ Groundwater
○ Direct Precipitation
○ Evaporation
○ Transpiration
○ River Flow
11. Water Control Structures
● Water control structures must be designed
with the water budget and storage capacity in
mind
○ Design depth of wetland
● Dikes surrounding the wetland will be broken
to input a weir and chute at the inlet and
outlet of the wetland.
○ Inlet/Outlet chutes will be constructed
as vegetative spillways
● An emergency spillway will also be
constructed
12. Topography
● Topographic complexity promotes diverse
hydroperiods and enhances the
development of the plant and animal
community.
● Topography is to be designed with micro
(smaller than 6” in elevation) and
macrotopography
● Mounds provide:
○ Habitats
○ Diverse Vegetation
○ Help Directing Flow Path
Topography and the Wetland Community:
○ Amphibians: prefer microtopographic
depressions seasonally inundated with
water
○ Waterfowl: deep swales of open water
○ Wading Birds: Shallow shorelines from
Irregular ponding shapes and large
depressions with a flat slope
13. Budget Considerations
● Wetland restoration is an expensive
project.
● Creative borrowing should be
utilized
○ Using fill from created depressions to
construct mounds
○ Excavation should not occur near the
dikes to prevent erosion or burrowing
rodents from compromising the
structure.
15. Methods of Flora Reintroduction
● Planting, where saplings are planted by hand or through mechanical means, is a highly intensive
process
● Direct Seeding, with seeds being hand sown or mechanically sown
● Brush Matting, which can provide seeds and cover for reducing overland flow and increasing
infiltration. This should not be done if there is not an excess of brush in the area the brush is
taken from.
● Transferring Leaf Litter, which can bring seeds, fungi, bacteria and more from an already
established site, can also bring along disease.
● Transplanting is an option which is viable for some soils, but factors such as moisture content
must be considered
16. Recovery
Two ways of measuring wetland recovery are by productivity and diversity
A more intensely restored wetland will typically have higher productivity at the
cost of lower diversity
17. Follow-up
● Monitoring
○ Productivity
○ Diversity
○ Water Quality
○ Hydroperiods
● Making small changes if goals are not being met as expected
○ Hydrological changes
○ Replanting
● Allowing for self-design to maintain the site once restoration is done
19. References
● ●U.S. Energy Information Administration - EIA - Independent Statistics and Analysis.” South Carolina - State Energy Profile Analysis - U.S. Energy Information Administration (EIA),
www.eia.gov/state/analysis.php?sid=SC.
● ●“Coal Ash: Hazardous to Human Health.” Physicians for Social Responsibility (PSR). https://www.psr.org/wp-content/uploads/2018/05/coal-ash-hazardous-to-human-health.pdf.
● ●Aronson, M. and Glatowitsch (2008). S. Long-term vegetation development of restored prairie pothole wetlands. Wetlands, Vol. 28, No. 4, pp. 883-895.
● ●Mitsch, W. et al (2012). Creating Wetlands: Primary Succession, Water Quality Changes, and Self-Design over 15 Years. Bioscience, Vol. 62, No. 3, pp. 237-250.
● ●Blomqvist, M. et al (2003). Restoration of ditch bank plant species richness:The potential of the soil seed bank. Applied Vegetation Science, Vol. 6, pp 179-188.
● ●United States Environmental Protection Agency. # 20 Wetland Hydrology # 20 Wetland Hydrology. 2008, No. December.
● ●Natural Resources Conservation Service. Engineering Chapter 13 Wetland Restoration , Enhancement , or Creation. U. S. Dep. Agric. Soil Conserv. Serv. Eng. F. Handb. 1997, 210-EFH, 1
(May).
● ●Wetland Science Institute. Wetland Restoration, Enhancement, and Management. Nat. Resour. Conserv. Serv. 2003, 375.
● ●https:/https://telluriumpartners.com/mitigation-banking-guide/
● ●https://www.nps.gov/subjects/wetlands/restoring-wetlands.htm
● ● Conservation Management Notes Managing bushland and wildlife habitat. New South Wales Department of Planning, Industry, and Environment. Retrieved from
https://www.environment.nsw.gov.au/resources/cpp/Revegetation.pdf
● ●The Ratio Method. United States Army Corps of Engineers Assessment Tools. Retrieved from
https://ribits.usace.army.mil/ribits_apex/f?p=107:27:721720919616::NO::P27_BUTTON_KEY:23
● ●Kentula, Mary E. Restoration, Creation, and Recovery of Wetlands Wetland Restoration and Creation. US Environmental Protection Agency. Retrieved from
https://water.usgs.gov/nwsum/WSP2425/restoration.html
In coal power plants, the organic material in coal is burned at very high temperatures and what is left is called coal ash
Coal ash contains concentrated amounts of arsenic, lead, mercury, and other heavy metals along with aluminum, cobalt, manganese, zinc, etc.
These metals are found naturally (coal was made from nature), however the concentration of these materials in coal and coal ash make these materials toxic
As people move away from coal generation, more ash ponds are being closed
Furthermore, as the EPA creates more strict guidelines on ash pond management, ash ponds operating outside of those regulations will be forced to close
Two methods for closing an ash pond:
Cover in place - temporary but cheap solution that is allowed for lined ash ponds
Closure by removal - removing all ash and contaminated soil and using the land for something else or allowing it to convert back into whatever it was before
Modeled after the Santee Cooper Ash Pond located at closed Grainger Generating Station
Original ash pond was created on a wetland in the Southeast
Surrounding environment is suited for wetlands (soil quality, presence of an adjacent river, some surrounding wetland vegetation, etc.)
The groundwater is impacted by the ash
Santee Cooper could simply close the ashpond, remove contaminated soils and leave it alone to be reverted to its wetland state by natural secession. However, to earn credits, they must have restoration design plans approved by DHEC
Current dikes need to be rehabbed
Emergency spillway will prevent downstream flooding from major storm events and erosion of the inlet/outlet chutes
Main barriers to wetland restoration:
Invasive species
Slow recolonization of natural flora in unplanted sites showed MUCH higher frequency of invasives
Isolation
Site is adjacent to some wetland vegetation, but some studies show that the mere presence of adjacent native species is not enough to promote maximum diversity and prevent invasive species
With a move away from coal generated electricity and more strict environmental standards, ash pond closures are becoming a more pertinent area of study. With more ash ponds closing and a higher emphases on restoring natural environments, this project covers a relevant area of study
Wetland restoration is an extensive but important endeavour to restoring natural habitats and ensuring that development is not causing a loss of wetlands in the united states