A more robust cost benefit analysis model of permeable pavement for stormwater management in the Hudson Valley.
Presented at the 2014 Southeast NY Stormwater Conference
Audience: planners, municipal decision makers, consultants and general public
Managing Stormwater in the Hudson Valley: A Cost-Benefit Analysis of Permeabl...Libby Zemaitis
Stormwater management is a priority in New York State that is gaining attention due to increased intense precipitation from climate change and increased urban development. The state has adopted stricter regulations that are driving the adoption of green infrastructure. Municipalities, schools, and private firms are already installing permeable pavement in the Hudson Valley, but there is a lack of robust, unbiased economic analyses of the technology found in the peer-reviewed literature. This thesis uses existing models and empirical studies to create a cost-benefit analysis model for permeable pavement in the Hudson Valley. The model estimates the five primary costs and benefits of permeable pavement as outlined in the literature: installation cost, operating and maintenance cost, runoff reduction benefit, pollutant removal benefit, and deicing reduction benefit. The initial analysis of a hypothetical one-acre permeable parking lot yielded a significant positive net present value. Despite various weaknesses, this model is a significant improvement on previous models in a new amalgam of more singular and unbiased studies of permeable pavement. Future work could include a transformation of this model into user-friendly online tool for prospective adopters to better understand the balance of costs and benefits of permeable pavement in the Hudson Valley and beyond.
(Final Master's Thesis accepted for Bard College M.S. in Climate Science and Policy)
Assessment Of Permeable Pavement In High Volume Urban Floodingrlucera
The document discusses the monitoring and modeling of a permeable pavement parking lot project. Monitoring of rainfall and runoff from the permeable pavers and a traditional pavement area found that the pavers reduced runoff by 31% for a small storm and 11% for a larger storm. Predictive modeling estimated that for a 100-year storm, the pavers could reduce peak flows by 34-55% and volume by similar amounts, with greater reductions for smaller storms. Optimizing storage space and incorporating off-site runoff controls could further increase performance during large storms.
An off-site BMP implementation program is being developed in the Little Arkansas River Watershed to provide a more cost-effective approach to meeting water quality requirements for development. The program would allow developers to pay an annual fee per acre of development that would fund agricultural BMPs implemented off-site through the SWAB. Analysis shows the off-site program would be more economical than traditional on-site stormwater controls. A framework has been established including sediment credit ratios, allowable off-site BMPs, and a sediment credit payment rate methodology. Support for the program exists and next steps include amending ordinances and contracting with an administrator.
The POLLCURB project investigates how changes in urban areas due to population growth affect local and regional water quality and quantity. It focuses on the Thames River basin and uses case studies in the Cut and River Ray catchments, which have undergone rapid urbanization. Models will be developed and linked to evaluate the impacts of urbanization and climate change on water resources through 2050. Citizen scientists will assist with water quality monitoring to test the models.
Linking Groundwater Flow and Transport Models, GIS Technology, Satellite Imag...Amro Elfeki
The document describes a methodology for linking groundwater flow and transport models with GIS technology, satellite images, and uncertainty quantification to predict the fate of sewage released from Buraiman Lake in Jeddah, Saudi Arabia. The methodology integrates flow and transport models, satellite images, GIS, and a Monte Carlo method for uncertainty quantification to provide a risk map for decision making. Sewage from the lake containing various contaminants is discharged into the local aquifer. Travel time models are developed and random walk methods are used to simulate contaminant transport in the aquifer and provide predictions under uncertain parameters.
FACED WITH CLIMATE change and environmental degradation many cities are turning to Blue-Green Infrastructure (BGI) solutions to enhance climate resilience as well as restore the health of ecosystems.
This document summarizes Philadelphia's 25-year plan to implement green infrastructure and reduce combined sewer overflows. The plan includes installing green stormwater infrastructure on public and private properties, incentivizing private retrofits, and updating regulations for new development. After 5 years, targets for interceptor lining, overflow reduction, and greened acres were exceeded. Future plans include doubling greened acreage in years 6-10. Monitoring shows green infrastructure is performing better than predicted in terms of infiltration and storage capacity. The plan's environmental, social, and economic benefits create a triple bottom line return on investment.
Managing Stormwater in the Hudson Valley: A Cost-Benefit Analysis of Permeabl...Libby Zemaitis
Stormwater management is a priority in New York State that is gaining attention due to increased intense precipitation from climate change and increased urban development. The state has adopted stricter regulations that are driving the adoption of green infrastructure. Municipalities, schools, and private firms are already installing permeable pavement in the Hudson Valley, but there is a lack of robust, unbiased economic analyses of the technology found in the peer-reviewed literature. This thesis uses existing models and empirical studies to create a cost-benefit analysis model for permeable pavement in the Hudson Valley. The model estimates the five primary costs and benefits of permeable pavement as outlined in the literature: installation cost, operating and maintenance cost, runoff reduction benefit, pollutant removal benefit, and deicing reduction benefit. The initial analysis of a hypothetical one-acre permeable parking lot yielded a significant positive net present value. Despite various weaknesses, this model is a significant improvement on previous models in a new amalgam of more singular and unbiased studies of permeable pavement. Future work could include a transformation of this model into user-friendly online tool for prospective adopters to better understand the balance of costs and benefits of permeable pavement in the Hudson Valley and beyond.
(Final Master's Thesis accepted for Bard College M.S. in Climate Science and Policy)
Assessment Of Permeable Pavement In High Volume Urban Floodingrlucera
The document discusses the monitoring and modeling of a permeable pavement parking lot project. Monitoring of rainfall and runoff from the permeable pavers and a traditional pavement area found that the pavers reduced runoff by 31% for a small storm and 11% for a larger storm. Predictive modeling estimated that for a 100-year storm, the pavers could reduce peak flows by 34-55% and volume by similar amounts, with greater reductions for smaller storms. Optimizing storage space and incorporating off-site runoff controls could further increase performance during large storms.
An off-site BMP implementation program is being developed in the Little Arkansas River Watershed to provide a more cost-effective approach to meeting water quality requirements for development. The program would allow developers to pay an annual fee per acre of development that would fund agricultural BMPs implemented off-site through the SWAB. Analysis shows the off-site program would be more economical than traditional on-site stormwater controls. A framework has been established including sediment credit ratios, allowable off-site BMPs, and a sediment credit payment rate methodology. Support for the program exists and next steps include amending ordinances and contracting with an administrator.
The POLLCURB project investigates how changes in urban areas due to population growth affect local and regional water quality and quantity. It focuses on the Thames River basin and uses case studies in the Cut and River Ray catchments, which have undergone rapid urbanization. Models will be developed and linked to evaluate the impacts of urbanization and climate change on water resources through 2050. Citizen scientists will assist with water quality monitoring to test the models.
Linking Groundwater Flow and Transport Models, GIS Technology, Satellite Imag...Amro Elfeki
The document describes a methodology for linking groundwater flow and transport models with GIS technology, satellite images, and uncertainty quantification to predict the fate of sewage released from Buraiman Lake in Jeddah, Saudi Arabia. The methodology integrates flow and transport models, satellite images, GIS, and a Monte Carlo method for uncertainty quantification to provide a risk map for decision making. Sewage from the lake containing various contaminants is discharged into the local aquifer. Travel time models are developed and random walk methods are used to simulate contaminant transport in the aquifer and provide predictions under uncertain parameters.
FACED WITH CLIMATE change and environmental degradation many cities are turning to Blue-Green Infrastructure (BGI) solutions to enhance climate resilience as well as restore the health of ecosystems.
This document summarizes Philadelphia's 25-year plan to implement green infrastructure and reduce combined sewer overflows. The plan includes installing green stormwater infrastructure on public and private properties, incentivizing private retrofits, and updating regulations for new development. After 5 years, targets for interceptor lining, overflow reduction, and greened acres were exceeded. Future plans include doubling greened acreage in years 6-10. Monitoring shows green infrastructure is performing better than predicted in terms of infiltration and storage capacity. The plan's environmental, social, and economic benefits create a triple bottom line return on investment.
The document discusses water resilience in urban areas of South Africa in the face of climate change. It presents a water resilience assessment framework that evaluates 5 components of urban water systems: 1) water resources, 2) water distribution, 3) water use, 4) water reuse, and 5) runoff and stormwater. For each component, the framework identifies key questions, resilience indicators, and potential measures to increase resilience based on a literature review. The document concludes that the framework provides a useful tool to assess urban water system resilience to climate change and support related decision making.
Poster prepared by Mahtsente Tibebe, Birhanu Zemadim, Dereje Haile and Assefa Melesse at the Nile Basin Development Challenge (NBDC) Science Workshop, Addis Ababa, Ethiopia, 9–10 July 2013
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Water Quality Assessment of VIT University “Green” Lake Using GISinventionjournals
ABSTRACT : VIT University “Green” Lake is a manmade lake present in VIT University, Vellore. The lake is primary used for disposal of treated industrial water and enhancing the aesthetic value of the University. As the population density area is really high the lake water pollution has affects the lives of the students directly. The purpose of the project was the determination of spatial variation of different physic-chemical characteristics of lake water viz. Chlorides (Cl-), Alkalinity, Dissolved Oxygen, Turbidity and hardness using Geographical Information System (GIS). Analysis provided the evidence of eutrophication and its effects on previous characteristics.
DSD-INT 2017 - Delft3D - Water Quality and Ecological Modeling Symposium - Fr...Deltares
Deltares sets international standards for modeling aquatic and subsoil ecosystems. They are applying innovations in monitoring techniques, data management, and visualization worldwide. Trends show real-time remote sensing data and information sources are increasingly used for ecosystem management. Governments, universities, and research institutes are demanding more integrated and open-source software, moving modeling communities towards sharing. Today's presentations at the Delft3D symposium span from fundamental research to management support, covering topics like climate change, algal blooms, agriculture, and coastal development, and include new applications of software and integrating modeling with data collection. The presentations illustrate models of different complexities to suit various types of users, from complex models for specialists to interactive platforms for
The City of Toronto is considering implementing a stormwater charge to provide dedicated funding for stormwater management. Under the proposed plan, the stormwater charge would be separated from water bills and properties would be placed into categories and tiers based on their size and average hard surface area. Revenue from the stormwater charge would go towards investing in projects like new stormwater infrastructure and flooding reduction. The proposal aims to make costs more fair and transparent by basing fees on a property's impact on the stormwater system rather than water usage. Most residential bills would change little on average under the new plan.
City Speak XII - Water We Drink: LT Ma of Water Supplies DepartmentDesigningHongKong
Where does the water we drink come from? Is there enough for everyone? Where will it come from?
Hong Kong's water supply comes from two sources: the rainfall we collect in our reservoirs (20-30%) and water we buy from the Mainland (70-80%). The current agreement for water from the Dongjiang, a tributary of the Pearl River, will expire in 2015. With demand for water growing sharply throughout the Pearl River Delta and the supply of water compromised by pollution and climate change, Hong Kong's future access to clean water is far from certain.
In our drive to become a sustainable city, should Hong Kong become self-sufficient? Should we increase the size of our reservoirs? Follow Singapore and recycle our waste water? Build plants to desalinate seawater? What other possible methods are there? Who's going to pay?
CitySpeak invites you to join Hong Kong officials, academics and planners in this discussion about our water issues.
The keynote speaker is Mr. LT Ma, Director of the Water Supplies Department, who will set the scene and outline the current situation in Hong Kong. The discussion will be moderated by Mr. Mike Kilburn, Environmental Programme Manager, Civic Exchange.
Background reading
"Liquid Assets -- Water security and management in the Pearl River Basin and Hong Kong" by Civic Exchange, November 2009 (http://www.civic-exchange.org/eng/upload/files/091204LiquidAssets.pdf). For more information about water in China, visit http://www.asiawaterproject.org/. Civic Exchange is a Hong Kong independent non-profit think tank. See: www.civic-exchange.org
Designing Hong Kong is a not-for-profit organisation focused on sustainable urban planning. See: www.designinghongkong.com
The document proposes allocating the town's wastewater treatment capacity for the upcoming fiscal year. It analyzes current wastewater flows, committed capacity not yet used, and reserve capacity to determine 256,665 gpd is available for allocation. This is proposed to be allocated with approximately 33,340 gpd for new uses and the remainder held in reserve. Residential growth is estimated to require 11,840 gpd and 7,500 gpd is proposed to be allocated for new commercial/industrial uses.
This document summarizes a study on the cost-effectiveness of various stormwater management practices for reducing nitrogen, phosphorus, and total suspended solids in the Chesapeake Bay watershed. The study found that pet waste programs, sewer repair, and illicit discharge detection were among the most cost-effective practices for nitrogen and phosphorus reduction. Urban stream restoration and dry pond retrofitting were among the most cost-effective for reducing total suspended solids. Applying the study's findings to the City of Richmond, scenarios that incorporated more approved practices and city constraints had significantly lower estimated costs for meeting pollution reduction targets.
Setting the scene, including updates on our work around our global demonstrator regions, and then talk through WASH priorities and available data (based on a structure we will provide in advance), identifying gaps with you and how we might address them.
A presentation about protecting clean water during construction projects. Presented by Robert Roseen of Geosyntec Consulting during the Buzzards Bay Coalition's 2014 Decision Makers Workshop series. Learn more at www.savebuzzardsbay.org/DecisionMakers
The document summarizes Austin's Water Forward plan to ensure reliable water supply for the growing population. It discusses Austin's current water sources, the historic drought, and recommends a hybrid portfolio approach. This includes maximizing conservation, local sources, and reliability through strategies like aquifer storage/recovery, brackish desalination, reuse expansion, and indirect potable reuse. The plan estimates costs and yields through 2040 and outlines next steps like developing codes/incentives and starting an aquifer storage pilot.
Feasibility of Stormwater Harvesting in Southern Californiarlucera
This document discusses rainwater harvesting concepts and challenges for implementation in California. It covers historic applications, technical feasibility, water quality considerations, economic feasibility, advantages and challenges of rainwater harvesting, and recommendations. Key challenges for California include a lack of state standards, potential conflicts with hydromodification discharge standards, and high capital costs that exceed the value of harvested water.
ICLR Friday Forum: Reducing flood risk in Toronto (February 2016)glennmcgillivray
ICLR held a Friday Forum workshop February 19, 2016 entitled 'Reducing flood risk in Toronto', led by David Kellershohn with Toronto Water. Urban flooding continues to drive significant losses for homeowners, municipalities and insurers across Canada. Toronto has been affected by significant urban flood events in 2000, 2005 and 2013. This presentation focused on basement flood protection work underway in Toronto.
David Kellershohn, as the Manager of Stormwater Management for the City of Toronto, is responsible for implementing the City's Wet Weather Flow Master Plan. This program includes the City's Basement Flooding Protection Program and the Coordinated Watercourse Erosion Management program. Ten year capital budget plans for these efforts exceed $1.6 billion over the next ten years.
Prior to joining the City of Toronto in 2009, David worked in the land development consulting industry for 12 years where he designed drainage systems for projects ranging from large subdivisions and large downtown condominium buildings through to small individual site designs.
David has a Bachelor's degree in Civil Engineering from the University of Waterloo and a Master's Degree in Civil Engineering from McMaster University, where he studied the water quality of Hamilton Harbour.
This presentation was given at the 2019 Catchment Management Notwork meeting, which was held on the 11 October in Tullamore. All our local authorities and other bodies responsible for implementing the Water Framework Directive in Ireland attended to share knowledge and learn from each other.
The document summarizes Austin Water's financial impacts and response to the Central Texas drought from 2008-2015. It describes how extreme drought conditions led to long-term water restrictions that significantly reduced water demand and caused revenue losses of up to $52 million per year. In response, Austin Water implemented a new financial model with tiered fixed fees, increased the fixed revenue percentage, established a reserve fund, and raised rates gradually to stabilize finances and improve bond ratings. The future outlook has improved now that drought conditions have eased.
This was my presentation I gave in Luxembourg 2013 for the Young Water Professionals Conference (YWP) for Benelux, hosted in Luxembourg. It was a really interesting conference, lots of young people with great ideas and willing to share their enthusiasm on their topics (especially during the social activities ;-) )
The document discusses a Clean Water Optimization Tool being developed by the Center for Watershed Protection to help municipalities develop cost-effective strategies for meeting water quality goals like the Chesapeake Bay Total Maximum Daily Load. The tool will evaluate practices like bioretention, permeable pavement, and land conservation. It will recommend strategies based on minimizing costs per pound of nutrient or sediment reduced. The tool is being piloted in Maryland's Eastern Shore and will incorporate local data on practice costs and effectiveness.
The Davis Woodland Water Supply Project is a joint powers authority between the cities of Davis and Woodland, California to improve their water supply. It includes an intake facility, water treatment plant, and transmission pipelines to deliver surface water from the Sacramento River. The project goals are to improve water quantity and quality, comply with regulations, provide environmental benefits, and diversify supply through use of surface water and groundwater. A design-build-operate contract was used to deliver the project faster and at lower life cycle cost, with benefits including early price certainty, innovation, and allocation of risk. Construction began in 2014 and initial water deliveries to the cities started in June 2016.
The document discusses water resilience in urban areas of South Africa in the face of climate change. It presents a water resilience assessment framework that evaluates 5 components of urban water systems: 1) water resources, 2) water distribution, 3) water use, 4) water reuse, and 5) runoff and stormwater. For each component, the framework identifies key questions, resilience indicators, and potential measures to increase resilience based on a literature review. The document concludes that the framework provides a useful tool to assess urban water system resilience to climate change and support related decision making.
Poster prepared by Mahtsente Tibebe, Birhanu Zemadim, Dereje Haile and Assefa Melesse at the Nile Basin Development Challenge (NBDC) Science Workshop, Addis Ababa, Ethiopia, 9–10 July 2013
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Water Quality Assessment of VIT University “Green” Lake Using GISinventionjournals
ABSTRACT : VIT University “Green” Lake is a manmade lake present in VIT University, Vellore. The lake is primary used for disposal of treated industrial water and enhancing the aesthetic value of the University. As the population density area is really high the lake water pollution has affects the lives of the students directly. The purpose of the project was the determination of spatial variation of different physic-chemical characteristics of lake water viz. Chlorides (Cl-), Alkalinity, Dissolved Oxygen, Turbidity and hardness using Geographical Information System (GIS). Analysis provided the evidence of eutrophication and its effects on previous characteristics.
DSD-INT 2017 - Delft3D - Water Quality and Ecological Modeling Symposium - Fr...Deltares
Deltares sets international standards for modeling aquatic and subsoil ecosystems. They are applying innovations in monitoring techniques, data management, and visualization worldwide. Trends show real-time remote sensing data and information sources are increasingly used for ecosystem management. Governments, universities, and research institutes are demanding more integrated and open-source software, moving modeling communities towards sharing. Today's presentations at the Delft3D symposium span from fundamental research to management support, covering topics like climate change, algal blooms, agriculture, and coastal development, and include new applications of software and integrating modeling with data collection. The presentations illustrate models of different complexities to suit various types of users, from complex models for specialists to interactive platforms for
The City of Toronto is considering implementing a stormwater charge to provide dedicated funding for stormwater management. Under the proposed plan, the stormwater charge would be separated from water bills and properties would be placed into categories and tiers based on their size and average hard surface area. Revenue from the stormwater charge would go towards investing in projects like new stormwater infrastructure and flooding reduction. The proposal aims to make costs more fair and transparent by basing fees on a property's impact on the stormwater system rather than water usage. Most residential bills would change little on average under the new plan.
City Speak XII - Water We Drink: LT Ma of Water Supplies DepartmentDesigningHongKong
Where does the water we drink come from? Is there enough for everyone? Where will it come from?
Hong Kong's water supply comes from two sources: the rainfall we collect in our reservoirs (20-30%) and water we buy from the Mainland (70-80%). The current agreement for water from the Dongjiang, a tributary of the Pearl River, will expire in 2015. With demand for water growing sharply throughout the Pearl River Delta and the supply of water compromised by pollution and climate change, Hong Kong's future access to clean water is far from certain.
In our drive to become a sustainable city, should Hong Kong become self-sufficient? Should we increase the size of our reservoirs? Follow Singapore and recycle our waste water? Build plants to desalinate seawater? What other possible methods are there? Who's going to pay?
CitySpeak invites you to join Hong Kong officials, academics and planners in this discussion about our water issues.
The keynote speaker is Mr. LT Ma, Director of the Water Supplies Department, who will set the scene and outline the current situation in Hong Kong. The discussion will be moderated by Mr. Mike Kilburn, Environmental Programme Manager, Civic Exchange.
Background reading
"Liquid Assets -- Water security and management in the Pearl River Basin and Hong Kong" by Civic Exchange, November 2009 (http://www.civic-exchange.org/eng/upload/files/091204LiquidAssets.pdf). For more information about water in China, visit http://www.asiawaterproject.org/. Civic Exchange is a Hong Kong independent non-profit think tank. See: www.civic-exchange.org
Designing Hong Kong is a not-for-profit organisation focused on sustainable urban planning. See: www.designinghongkong.com
The document proposes allocating the town's wastewater treatment capacity for the upcoming fiscal year. It analyzes current wastewater flows, committed capacity not yet used, and reserve capacity to determine 256,665 gpd is available for allocation. This is proposed to be allocated with approximately 33,340 gpd for new uses and the remainder held in reserve. Residential growth is estimated to require 11,840 gpd and 7,500 gpd is proposed to be allocated for new commercial/industrial uses.
This document summarizes a study on the cost-effectiveness of various stormwater management practices for reducing nitrogen, phosphorus, and total suspended solids in the Chesapeake Bay watershed. The study found that pet waste programs, sewer repair, and illicit discharge detection were among the most cost-effective practices for nitrogen and phosphorus reduction. Urban stream restoration and dry pond retrofitting were among the most cost-effective for reducing total suspended solids. Applying the study's findings to the City of Richmond, scenarios that incorporated more approved practices and city constraints had significantly lower estimated costs for meeting pollution reduction targets.
Setting the scene, including updates on our work around our global demonstrator regions, and then talk through WASH priorities and available data (based on a structure we will provide in advance), identifying gaps with you and how we might address them.
A presentation about protecting clean water during construction projects. Presented by Robert Roseen of Geosyntec Consulting during the Buzzards Bay Coalition's 2014 Decision Makers Workshop series. Learn more at www.savebuzzardsbay.org/DecisionMakers
The document summarizes Austin's Water Forward plan to ensure reliable water supply for the growing population. It discusses Austin's current water sources, the historic drought, and recommends a hybrid portfolio approach. This includes maximizing conservation, local sources, and reliability through strategies like aquifer storage/recovery, brackish desalination, reuse expansion, and indirect potable reuse. The plan estimates costs and yields through 2040 and outlines next steps like developing codes/incentives and starting an aquifer storage pilot.
Feasibility of Stormwater Harvesting in Southern Californiarlucera
This document discusses rainwater harvesting concepts and challenges for implementation in California. It covers historic applications, technical feasibility, water quality considerations, economic feasibility, advantages and challenges of rainwater harvesting, and recommendations. Key challenges for California include a lack of state standards, potential conflicts with hydromodification discharge standards, and high capital costs that exceed the value of harvested water.
ICLR Friday Forum: Reducing flood risk in Toronto (February 2016)glennmcgillivray
ICLR held a Friday Forum workshop February 19, 2016 entitled 'Reducing flood risk in Toronto', led by David Kellershohn with Toronto Water. Urban flooding continues to drive significant losses for homeowners, municipalities and insurers across Canada. Toronto has been affected by significant urban flood events in 2000, 2005 and 2013. This presentation focused on basement flood protection work underway in Toronto.
David Kellershohn, as the Manager of Stormwater Management for the City of Toronto, is responsible for implementing the City's Wet Weather Flow Master Plan. This program includes the City's Basement Flooding Protection Program and the Coordinated Watercourse Erosion Management program. Ten year capital budget plans for these efforts exceed $1.6 billion over the next ten years.
Prior to joining the City of Toronto in 2009, David worked in the land development consulting industry for 12 years where he designed drainage systems for projects ranging from large subdivisions and large downtown condominium buildings through to small individual site designs.
David has a Bachelor's degree in Civil Engineering from the University of Waterloo and a Master's Degree in Civil Engineering from McMaster University, where he studied the water quality of Hamilton Harbour.
This presentation was given at the 2019 Catchment Management Notwork meeting, which was held on the 11 October in Tullamore. All our local authorities and other bodies responsible for implementing the Water Framework Directive in Ireland attended to share knowledge and learn from each other.
The document summarizes Austin Water's financial impacts and response to the Central Texas drought from 2008-2015. It describes how extreme drought conditions led to long-term water restrictions that significantly reduced water demand and caused revenue losses of up to $52 million per year. In response, Austin Water implemented a new financial model with tiered fixed fees, increased the fixed revenue percentage, established a reserve fund, and raised rates gradually to stabilize finances and improve bond ratings. The future outlook has improved now that drought conditions have eased.
This was my presentation I gave in Luxembourg 2013 for the Young Water Professionals Conference (YWP) for Benelux, hosted in Luxembourg. It was a really interesting conference, lots of young people with great ideas and willing to share their enthusiasm on their topics (especially during the social activities ;-) )
The document discusses a Clean Water Optimization Tool being developed by the Center for Watershed Protection to help municipalities develop cost-effective strategies for meeting water quality goals like the Chesapeake Bay Total Maximum Daily Load. The tool will evaluate practices like bioretention, permeable pavement, and land conservation. It will recommend strategies based on minimizing costs per pound of nutrient or sediment reduced. The tool is being piloted in Maryland's Eastern Shore and will incorporate local data on practice costs and effectiveness.
The Davis Woodland Water Supply Project is a joint powers authority between the cities of Davis and Woodland, California to improve their water supply. It includes an intake facility, water treatment plant, and transmission pipelines to deliver surface water from the Sacramento River. The project goals are to improve water quantity and quality, comply with regulations, provide environmental benefits, and diversify supply through use of surface water and groundwater. A design-build-operate contract was used to deliver the project faster and at lower life cycle cost, with benefits including early price certainty, innovation, and allocation of risk. Construction began in 2014 and initial water deliveries to the cities started in June 2016.
Ontario Society of Professional Engineers OSPE Green Infrastructure Roundtabl...Robert Muir
Green Infrastructure – Cost Effectiveness and Technical Challenges for Flood Mitigation, Robert J. Muir, M.A.Sc., P.Eng.
Manager, Stormwater, City of Markham, January 30, 2018 - Mississauga, Ontario
The presentation presents regulations and policies regarding cost effective infrastructure, explores green infrastructure capital costs in Ontario based on recent project tender costs and other North American extensive program sources, explores lifecycle cost (LCC) impacts of widespread green infrastructure implementation in Ontario, including cost per household and impacts on the current infrastructure deficit, and presents benefit cost analysis for city-wide grey and green infrastructure strategies including benefit/cost ratios for flood damage reduction. Unit costs of no regret programs such as sanitary downspout disconnection and plumbing isolation programs, and wastewater and stormwater system upgrades, and green infrastructure retrofits are presented per hectare. Gaps in research relying on meta-analysis estimates of flood control benefits that do not consider local engineering or costs are presented. Impacts of green infrastructure on wastewater systems and infiltration stresses is presented, and correlation of wastewater infiltration stresses with local sewer back-up risks is shown for the City of Markham. Water supply risks of green infrastructure relying on infiltration including chloride stresses are explored. The unfavourable benefit-cost profile of green infrastructure and potential impacts on wastewater system flood risks and municipal water supplies suggests a strategic review of implementation targets and policies is warranted to identify financially sustainable and technically-appropriate requirements.
Green Infrastructure / Low Impact Development LID Design Tool and Lifecycle C...Robert Muir
This document discusses stormwater management and low impact development (LID) targets. It provides background on the evolution of LID targets in Ontario. It then describes analytical probability models that can be used to design LID measures and assess their performance. The document analyzes the capital and lifecycle costs of meeting proposed LID volume targets from the Ministry of Environment and Climate Change, finding the costs to be 4-5 times higher than conventional technologies. It also presents unit cost data for completed LID projects and analyzes the lifecycle costs of implementing LIDs in a new development in Markham. The conclusions emphasize the need for system-wide planning to identify cost-effective LID targets and consider full lifecycle costs for sustainable financial
Australia with a Drying Climate - Sustainable urban water management. By what...SmartH2O
The document discusses sustainable urban water management strategies for Perth, Western Australia as the region experiences drying climate conditions and declining rainfall. It outlines three levels of strategies: 1) behavioral change programs like H2omesmart, 2) improved efficiency standards for appliances, and 3) new technologies such as decentralized seawater desalination plants and dual reticulation systems. Case studies on these initiatives show potential for significant water savings through community-based social marketing, more efficient devices, and alternative water sources. Future research is proposed on developing new urban villages with integrated water recycling and renewable energy systems.
CCW Conference: Cost effective practices for clean waterClean Water
The document summarizes cost effective practices for clean water based on a study of the James River Basin in Virginia. It finds that removing illicit discharges from storm sewer systems, such as sewer repairs and eliminating cross connections, is among the most cost effective ways to reduce nitrogen, phosphorus, and sediment levels. Urban stream restoration is also highly cost effective for sediment removal. Initial estimates found addressing stormwater pollution in Richmond could cost $305 million using older practices, but improving identification and removal of illicit discharges could lower the cost to $84-100 million. Proper identification and removal of illicit discharges is an important yet overlooked method for nutrient management that governments should receive credit for.
20100407 kostelec green_infrastructure_webTranspo Group
This document summarizes a conference on integrating green infrastructure into regional planning. It discusses defining green infrastructure to include both natural and built environments. It provides examples of green infrastructure networks and policies to support them. Speakers discussed state-of-the-practice techniques, assessing green infrastructure at a regional scale, and impacts of stormwater. Street connectivity was presented as a green infrastructure practice, and metrics like route directness index were discussed to measure connectivity.
Jersey Water Works Green Infrastructure Training at NJ Society of Municipal E...New Jersey Future
The Green Infrastructure Committee of Jersey Water Works presented to the New Jersey Society of Municipal Engineers about green infrastructure on September 14, 2016.
This document provides an agenda and materials for a training module on BMPs (best management practices). The module will include lectures covering an overview of BMP manuals, BMP selection and evaluation processes, hydrology calculations related to BMP design, and regional water quality initiatives. The first lecture will discuss the history of BMP manuals, definitions, basic BMP principles, and the BMP evaluation process. Future updates to the manual will also be addressed.
The document summarizes a public information event for updating the Waterfront Sanitary Servicing Master Plan. It presents four alternative solutions to service growth along Toronto's waterfront to 2041 and evaluates them. Alternative 1 (Central 1 + Port Lands) has the highest overall score as it has a high technical score and the lowest capital, operation, and lifecycle costs. Alternative 4 (Interceptor Tunnel) has the highest technical score but also the highest costs.
Urban Public Policy and Sustainability: Policy recommendation for the City of...Vanessa Davis
This presentation represents a segment of a group project in a capstone course at Arizona State University on "Urban Public Policy and Sustainability".
Our group was tasked with working with the City of Mesa to identify and research an urban planning policy that could be improved to support a more sustainable trajectory. The final outcome was a policy recommendation delivered to the city and presented to a mock city council. (While we did not present to the actual City Council for Mesa, our "mock council" participants included the Mayor of Mesa, a City Council Member from Tempe and a few other well qualified judges.)
Our group's policy recommendation was concerned with decreasing wastewater for sustainable development via suggested policy changes concerning development impact fees.
Urban Planning Design Considerations for Better Water Quality, Bill Hunt NC S...Fu Michael Justin
This document discusses various studies and case studies related to the impacts of development on water quality. It summarizes that effective solutions require maintaining watershed hydrology through low impact development techniques like reducing impervious surfaces, incorporating bioretention areas, and maintaining wetlands and riparian buffers. A case study of the Carpenter Village development showed positive results from using clustered housing, narrow streets, integrated open space and bioretention to minimize impacts on water quality.
Presentations, MPO Policy Committee, May 28, 2015dmampo
The Des Moines Area MPO Policy Committee Meeting agenda included votes on approving minutes and financial statements, presentations on smart growth and green streets, and votes on the FY2016 planning work program and budget. There was also a vote on a letter of support for a TIGER grant application and an FAA reauthorization letter. The committee reviewed the executive director's annual performance and a revision to the transportation improvement program.
The document summarizes economic analyses conducted on the Bay Delta Conservation Plan (BDCP). It analyzed the economic benefits of the BDCP, benefits of different take alternatives, and statewide economic impacts. The analyses found that the BDCP would provide $4.7-5.5 billion in benefits to state and federal water contractors by stabilizing water supplies. Alternative configurations were also analyzed and found to provide billions in benefits, though some alternatives had higher costs than benefits. A statewide economic impacts study additionally considered effects in areas like construction, recreation, traffic, and agriculture.
Green infrastructure policy for stormwater infiltrationEvan Pratt
This document provides an overview of new stormwater rules pending adoption in June. It discusses three main changes: 1) requiring a mandatory pre-application meeting, 2) updating the technical approach to use a 5.11 inch 24-hour 1% storm and infiltration of the first 1 inch of runoff, and 3) requiring infiltration of runoff unless soils are proven unsuitable. It provides examples of how green infrastructure can benefit development through lower construction and maintenance costs. Community benefits include reducing long-term costs and water quality impacts.
The document analyzes the impervious surfaces in the Gowanus Canal watershed and models the potential impact of green infrastructure installation. It finds that the watershed is currently 37% impervious surfaces like roofs and roads. Modeling shows that installing green roofs on 5-35% of surfaces could reduce peak discharge by up to 5.86% and capture up to 58.2% of runoff. While green roofs are less efficient than other green infrastructure, the analysis demonstrates their potential benefit for reducing combined sewer overflows.
Fabular Frames and the Four Ratio ProblemMajid Iqbal
Digital, interactive art showing the struggle of a society in providing for its present population while also saving planetary resources for future generations. Spread across several frames, the art is actually the rendering of real and speculative data. The stereographic projections change shape in response to prompts and provocations. Visitors interact with the model through speculative statements about how to increase savings across communities, regions, ecosystems and environments. Their fabulations combined with random noise, i.e. factors beyond control, have a dramatic effect on the societal transition. Things get better. Things get worse. The aim is to give visitors a new grasp and feel of the ongoing struggles in democracies around the world.
Stunning art in the small multiples format brings out the spatiotemporal nature of societal transitions, against backdrop issues such as energy, housing, waste, farmland and forest. In each frame we see hopeful and frightful interplays between spending and saving. Problems emerge when one of the two parts of the existential anaglyph rapidly shrinks like Arctic ice, as factors cross thresholds. Ecological wealth and intergenerational equity areFour at stake. Not enough spending could mean economic stress, social unrest and political conflict. Not enough saving and there will be climate breakdown and ‘bankruptcy’. So where does speculative design start and the gambling and betting end? Behind each fabular frame is a four ratio problem. Each ratio reflects the level of sacrifice and self-restraint a society is willing to accept, against promises of prosperity and freedom. Some values seem to stabilise a frame while others cause collapse. Get the ratios right and we can have it all. Get them wrong and things get more desperate.
South Dakota State University degree offer diploma Transcriptynfqplhm
办理美国SDSU毕业证书制作南达科他州立大学假文凭定制Q微168899991做SDSU留信网教留服认证海牙认证改SDSU成绩单GPA做SDSU假学位证假文凭高仿毕业证GRE代考如何申请南达科他州立大学South Dakota State University degree offer diploma Transcript
Vicinity Jobs’ data includes more than three million 2023 OJPs and thousands of skills. Most skills appear in less than 0.02% of job postings, so most postings rely on a small subset of commonly used terms, like teamwork.
Laura Adkins-Hackett, Economist, LMIC, and Sukriti Trehan, Data Scientist, LMIC, presented their research exploring trends in the skills listed in OJPs to develop a deeper understanding of in-demand skills. This research project uses pointwise mutual information and other methods to extract more information about common skills from the relationships between skills, occupations and regions.
Economic Risk Factor Update: June 2024 [SlideShare]Commonwealth
May’s reports showed signs of continued economic growth, said Sam Millette, director, fixed income, in his latest Economic Risk Factor Update.
For more market updates, subscribe to The Independent Market Observer at https://blog.commonwealth.com/independent-market-observer.
[4:55 p.m.] Bryan Oates
OJPs are becoming a critical resource for policy-makers and researchers who study the labour market. LMIC continues to work with Vicinity Jobs’ data on OJPs, which can be explored in our Canadian Job Trends Dashboard. Valuable insights have been gained through our analysis of OJP data, including LMIC research lead
Suzanne Spiteri’s recent report on improving the quality and accessibility of job postings to reduce employment barriers for neurodivergent people.
Decoding job postings: Improving accessibility for neurodivergent job seekers
Improving the quality and accessibility of job postings is one way to reduce employment barriers for neurodivergent people.
Optimizing Net Interest Margin (NIM) in the Financial Sector (With Examples).pdfshruti1menon2
NIM is calculated as the difference between interest income earned and interest expenses paid, divided by interest-earning assets.
Importance: NIM serves as a critical measure of a financial institution's profitability and operational efficiency. It reflects how effectively the institution is utilizing its interest-earning assets to generate income while managing interest costs.
Falcon stands out as a top-tier P2P Invoice Discounting platform in India, bridging esteemed blue-chip companies and eager investors. Our goal is to transform the investment landscape in India by establishing a comprehensive destination for borrowers and investors with diverse profiles and needs, all while minimizing risk. What sets Falcon apart is the elimination of intermediaries such as commercial banks and depository institutions, allowing investors to enjoy higher yields.
OJP data from firms like Vicinity Jobs have emerged as a complement to traditional sources of labour demand data, such as the Job Vacancy and Wages Survey (JVWS). Ibrahim Abuallail, PhD Candidate, University of Ottawa, presented research relating to bias in OJPs and a proposed approach to effectively adjust OJP data to complement existing official data (such as from the JVWS) and improve the measurement of labour demand.
Every business, big or small, deals with outgoing payments. Whether it’s to suppliers for inventory, to employees for salaries, or to vendors for services rendered, keeping track of these expenses is crucial. This is where payment vouchers come in – the unsung heroes of the accounting world.
University of North Carolina at Charlotte degree offer diploma Transcripttscdzuip
办理美国UNCC毕业证书制作北卡大学夏洛特分校假文凭定制Q微168899991做UNCC留信网教留服认证海牙认证改UNCC成绩单GPA做UNCC假学位证假文凭高仿毕业证GRE代考如何申请北卡罗莱纳大学夏洛特分校University of North Carolina at Charlotte degree offer diploma Transcript
TEST BANK Principles of cost accounting 17th edition edward j vanderbeck mari...Donc Test
TEST BANK Principles of cost accounting 17th edition edward j vanderbeck maria r mitchell.docx
TEST BANK Principles of cost accounting 17th edition edward j vanderbeck maria r mitchell.docx
TEST BANK Principles of cost accounting 17th edition edward j vanderbeck maria r mitchell.docx
TEST BANK Principles of cost accounting 17th edition edward j vanderbeck mari...
Managing stormwater in the Hudson Valley: a cost benefit analysis of permeable pavement
1. MANAGING STORMWATER IN THE HUDSON VALLEY:
A COST-BENEFIT ANALYSIS OF PERMEABLE PAVEMENT
October 15, 2014
Libby Murphy, MBA/MS
Climate Outreach Specialist
Hudson River Estuary Program, NYS DEC
3. Stormwater management is key to
maintaining water quality & human health
Hudson River estuary
– 150 sewer systems, 13
Combined Sewer Systems
(CSS)
– 695 CSS outfalls
– 29 billions gallons discharge
– Separate systems also lead
to discharge
Exacerbated by climate change
and urbanization
8. What is the lifecycle value of permeable
pavement?
9. I created a robust cost-
benefit analysis tool to
estimate the value of
porous pavement for the
Hudson Valley
10. What are the primary costs and
benefits of permeable pavement?
Costs
Installation
Operating and maintenance
Benefits
Avoided gray infrastructure
Reduced runoff
Pollutant removal
Reduced deicing
11. Assumptions
• Project size: one acre or 34,560 square feet
• Type: Pervious asphalt parking lot with 100-150 spaces
• Benefits realized: All (new development, CSS municipality)
• Install cost: $5 per square foot
• Life expectancy: 30 years
• Discount rate: 3%
12. Cost #1: Installation
Upfront investment
$0.50 to $5 per square foot
Sources: Booth, 1999; Houle et al., 2013; UNHSC, 2012
Installation Costs
Unit cost (dollars per square feet) 5
Project installation cost (dollars) 217,800
13. Cost #2:
Operating + Maintenance
Annual cost
Vacuuming and inspection
$1.14 mil per square foot and $25 per acre
Sources: Houle et al., 2013; UNHSC, 2012
Operating & Maintenance Costs
Unit vacuuming cost (dollars per square feet) 0.0114
Project vacuuming cost (dollars per year) 497
Vacuuming frequency (times per year) 2
Inspection (dollars per year) 25
Total annual O&M cost (dollars per year) 1,018
14. Benefit #1: Avoided gray
Infrastructure
Upfront avoided cost
$2.71 per square foot
Source: CNT, 2009
Avoided Costs
Unit cost of stormwater treatment (dollars per square feet) 2.71
Avoided gray infrastructure (dollars) 118,048
15. Benefit #2: Reduced runoff
Annual avoided cost
$0.743 mil per square foot
NRCS rainfall-runoff model, sewage rates
Sources: CNT, 2010; Battiata et al., 2008; Hunt, 2012;
USDA NRCS, 2004; Roseen et al., 2012; UNHSC, 2012
Runoff reduction
Wastewater or sewage treatment fee (dollars per gallon) 0.007429
Average annual precipitation (inches per year) 47.50
Avoided annual runoff volume (gallons) 867,064
Annual runoff benefit (dollars per year) 6,441
16. Benefit #3: Pollutant removal
Annual avoided cost
$0.17 for TSS and $0.035 mil for TP per square foot
Pollutant concentration reduction method
Sources: CWP, 2013; Houle et al., 2013; NYSDEC,
2010; Roseen et al., 2012
Pollutant removal
Drainage area
Approximate proportion institutional parking lot (%) 100
Annual TSS pollutant removed (milograms) 454,207,418
Annual TP pollutant removed (milograms) 767,952
Pollutant removal benefit (dollars per year) 8,509
17. Benefit #4: Reduced deicing
Upfront investment
$0.33 mil per square foot
75% reduction recommended
Sources: DOT, 2013; Houle, 2008; Houle et al.,
2013; Shafer & Kevern, 2013; UNHSC, 2012
Deicing reduction
Typically road salt application (tons per acre) 3
Unit cost of road salt (dollars per ton) 51
Proportion reduction for permeable (%) 75
Deicing benefit (dollars per year) 115
19. Discussion
• Compare to existing studies
• Model is more robust but there are still weaknesses
– Installation costs, repair, gray infra, climate change, etc.
• Permeable pavement could have a significant impact on
municipal annual budget
• If NPV really is significantly positive, why are there roadblocks?
Financial Analysis
NPV (dollars) 175,573
Annual Savings (dollars) 8,958
Payback Period (years) 8.11
Return on Investment (%) 14
20. Why are more municipalities not
adopting permeable pavement?
• Traditional pavement technology well known
• Installation costs are higher for permeable
• Permeable technology requires experienced engineers and
installers
• Lenders may be reticent to fund because of uncertainty
around lifecycle costs and benefits
21. Policy recommendations
• Lenders need to decouple risk
and funding roles by
outsourcing their risk-taking to a
third party insurer
• Need better education and
institutionalization through
outreach, funding, and
22. Next steps
• Incorporate climate
change projections for
NYS
• Improve model
• Transform into user-friendly
online tool
• Apply to real life projects
• U. Albany campus center
23. MANAGING STORMWATER IN THE HUDSON VALLEY:
A COST-BENEFIT ANALYSIS OF PERMEABLE PAVEMENT
Questions?
Libby Murphy, MBA/MS
Elizabeth.murphy@dec.ny.gov
24. Equations
• Installation
where A is the area of the project, and c is
the unit installation cost of permeable
pavement.
• O&M
where A is the area of the project, cv is the
unit cost of vacuuming, f is the annual
vacuuming frequency, and ci is the
annual cost of inspection.
25. Equations
• Gray infrastructure
Where A is the area of the project and cg is
the avoided cost of gray infrastructure
that would have been required per
unit of impervious surface.
• Runoff reduction
where cs is the unit cost to treat stormwater and Qvol
is the annual runoff volume reduced. Qvol is
derived from the NRCS Method, where P is
annual precipitation, SIP and SPP are the potential
maximum retention after runoff begins for
impervious pavement and permeable
pavement, and A is the area of the project. S is
also part of the NRCS Method, where CN is the
Curve Number assigned to each surface given
its infiltration properties.
26. Equations
• Pollutant removal
where Pin is the unit pollutant loading based on
land use in drainage area, Pred is the proportion
of pollutant concentration reduction provided
by permeable pavement, W is the water
volume treated, and cp is the unit cost to
remove pollutant.
• Reduced deicing
where A is the area of the project, r is the
reduction in road salt application, t is the
standard rate of road salt application for
impervious pavement, and c is the unit cost of
27. NPV Equation
Where Ci is the initial investment in the form of installation cost of permeable pavement, Cm is the
annual cost of operating and maintenance, i is the discount rate, Bi is the initial benefit of avoided
gray infrastructure, Br is the annual benefit of runoff reduction, Bp is the annual benefit of pollutant
removal, and Bs is the annual benefit of reduced road salt application.
28. Data
Table 4. Municipal sewage fee rates for the mid-
Hudson Valley area.
Municipality County
Sewage treatment fee
(dollars per gallon)
1 Rosendale Ulster 0.004500
2 New York New York 0.007607
3 Fishkill Dutchess 0.012995
4 Kingston Ulster 0.006007
5 Newburgh Orange 0.010195
6 Poughkeepsie Dutchess 0.002674
7 Saugerties Ulster 0.005357
8 Woodstock Ulster 0.010100
Simple average sewage fee 0.007429
29. Data
Table 5. Annual average precipitation from five sites in
the Hudson Valley, NY, 1983-2013.
Source: Northeast Climate Center.
Station location County Precipitation (inches)
1 Alcove Albany 52.7
2 Hudson Columbia 41.6
3 Yorktown Heights Westchester 54.1
4 Mohonk Lake Ulster 42.0
5 Walden Orange 47.1
Simple average for five sites 47.5
30. Data
Table 6. Representative
pollutant loading by
landuse type.
Source: Hunt et al., 2012
TSS (mg/L) TP (mg/L) TN (mg/L)
Institutional
Parking lot 654.81 1.48 5.45
Open/landscaped 100.30 1.67 8.48
Roof 102.20 0.57 4.09
Commercial
Parking lot 219.53 0.61 5.45
Roof 27 0.15 1.08
Open/landscaped 100.30 1.67 8.48
Residential
Driveway 654.81 1.48 5.45
Roof 27 0.15 1.08
Lawn 100.30 1.67 8.48
Transportation
Sidewalks 113.55 1.78 4.31
Low density 113.55 1.63 13.89
Medium density 93 0.52 1.40
Industrial
Parking lot 173 0.39 1.44
Roof 27 0.15 1.08
Open/landscaped 26.50 0.44 2.24
Other
Woods 427.71 0.95 5.56
Maintained grass 75.70 2.23 11.58
Pasture 317.94 5.90 13.66
Open water 102.20 0.57 4.09
Editor's Notes
HREP work
Motivation of working on this project, then the background of stormwater reg + PP
Used for parking lots, sidewalks, patios, roads, green street, green alley, and even bbal courts
Businesses, campuses, munis
Adoption rates are still small – why? That is why CBA of PP.
Even though we see early adopters, we do see barriers including social/tech/funding. Plus, there are issues of higher upfront costs so adopters may assume that the overall lifecycle costs are also high. Important to look at lifecycle value. Should we push its adoption in the Hudson Valley and beyond?