February 11, 2014 public meeting presentation for three proposed stormwater facility management projects off of Cabin Branch of Great Seneca Creek. (powerpoint file)
This project had three objectives: 1) Reduce downstream flood flows, 2) Maximize use of low-lying lands for flood water storage, and 3) Maximize well field production. It achieved these objectives through constructing berms and ditches to redirect floodwater onto a wellfield for storage and aquifer recharge, improving wetland hydrology and reducing offsite flooding. Monitoring showed improved wetland hydroperiods, vegetative recovery in wetlands, and the project ended under budget.
This document provides an introduction and outline for a course on irrigation engineering. The key points are:
1. The course will cover soil-plant-water relations, irrigation water requirements, water sources and quality, irrigation planning and efficiencies, and design of irrigation systems and structures.
2. The objectives are for students to understand soil-plant-water parameters, estimate crop water needs, plan and design irrigation structures, and design irrigation channels and other structures.
3. The syllabus covers topics like irrigation methods, water requirements, canal systems, design of channels, diversion structures, outlets, seepage theories, dams, and environmental impacts of irrigation projects.
This document outlines the guidelines for constructing check dams in order to provide drinking water facilities and groundwater recharge. It discusses the objectives of check dams, selection criteria for areas to implement check dams, types of check dams, design aspects, implementation arrangements, operation and maintenance responsibilities, funding arrangements, institutional arrangements for management, and monitoring mechanisms. Check dams are constructed across small rivers and streams to reduce water flow during monsoons and allow water to seep into the soil.
This document summarizes progress made 2 years after the Rebuild by Design competition to develop flood protection solutions for the New Meadowlands area of New Jersey. It discusses exploring alternative alignments and elements for flood protection features, obtaining community input, and the current process. The goal is to contribute to community resiliency and reduce flood risk while providing co-benefits like public open space, recreation, and reduced flood insurance rates. Next steps include continuing outreach and developing a story of the New Meadowlands project.
This document discusses Griffin's expertise in dewatering and groundwater control since 1934. It provides information on Griffin's pumps and equipment, filtration and treatment systems, engineering capabilities, and approach to ash pond dewatering projects. Griffin offers customized solutions including modeling, design, installation of dewatering systems, pumps, filtration and operation/maintenance to lower water levels and allow for safe excavation of coal ash.
This document discusses various topics related to irrigation system planning and management including:
1. Types of canals such as alluvial canals, lined/unlined canals, and perennial/non-perennial canals.
2. Factors considered for canal lining justification such as seepage rates, water savings, and costs.
3. Water allowance which is the discharge required to irrigate 1000 acres, affected by climate, soil, crops and efficiency.
4. Irrigation efficiency accounting for conveyance, field, and application losses.
5. Command area statement, chakbandi, capacity statement, and warabandi which are tools for equitable water distribution.
Continuous & intermittent system of water supplyParikshit Kumar
This document discusses continuous and intermittent water supply systems. The continuous system provides water 24 hours a day through a pressurized network. It has advantages like fresh water availability and meeting fire demands quickly, but can waste more water from leaks. The intermittent system divides the area into zones and supplies each for fixed hours due to limited water availability. It requires larger pipes but less infrastructure. Both systems can experience contamination issues, but intermittent systems are more vulnerable. The document compares the key aspects of the two approaches and discusses challenges to achieving continuous supply in India.
This project had three objectives: 1) Reduce downstream flood flows, 2) Maximize use of low-lying lands for flood water storage, and 3) Maximize well field production. It achieved these objectives through constructing berms and ditches to redirect floodwater onto a wellfield for storage and aquifer recharge, improving wetland hydrology and reducing offsite flooding. Monitoring showed improved wetland hydroperiods, vegetative recovery in wetlands, and the project ended under budget.
This document provides an introduction and outline for a course on irrigation engineering. The key points are:
1. The course will cover soil-plant-water relations, irrigation water requirements, water sources and quality, irrigation planning and efficiencies, and design of irrigation systems and structures.
2. The objectives are for students to understand soil-plant-water parameters, estimate crop water needs, plan and design irrigation structures, and design irrigation channels and other structures.
3. The syllabus covers topics like irrigation methods, water requirements, canal systems, design of channels, diversion structures, outlets, seepage theories, dams, and environmental impacts of irrigation projects.
This document outlines the guidelines for constructing check dams in order to provide drinking water facilities and groundwater recharge. It discusses the objectives of check dams, selection criteria for areas to implement check dams, types of check dams, design aspects, implementation arrangements, operation and maintenance responsibilities, funding arrangements, institutional arrangements for management, and monitoring mechanisms. Check dams are constructed across small rivers and streams to reduce water flow during monsoons and allow water to seep into the soil.
This document summarizes progress made 2 years after the Rebuild by Design competition to develop flood protection solutions for the New Meadowlands area of New Jersey. It discusses exploring alternative alignments and elements for flood protection features, obtaining community input, and the current process. The goal is to contribute to community resiliency and reduce flood risk while providing co-benefits like public open space, recreation, and reduced flood insurance rates. Next steps include continuing outreach and developing a story of the New Meadowlands project.
This document discusses Griffin's expertise in dewatering and groundwater control since 1934. It provides information on Griffin's pumps and equipment, filtration and treatment systems, engineering capabilities, and approach to ash pond dewatering projects. Griffin offers customized solutions including modeling, design, installation of dewatering systems, pumps, filtration and operation/maintenance to lower water levels and allow for safe excavation of coal ash.
This document discusses various topics related to irrigation system planning and management including:
1. Types of canals such as alluvial canals, lined/unlined canals, and perennial/non-perennial canals.
2. Factors considered for canal lining justification such as seepage rates, water savings, and costs.
3. Water allowance which is the discharge required to irrigate 1000 acres, affected by climate, soil, crops and efficiency.
4. Irrigation efficiency accounting for conveyance, field, and application losses.
5. Command area statement, chakbandi, capacity statement, and warabandi which are tools for equitable water distribution.
Continuous & intermittent system of water supplyParikshit Kumar
This document discusses continuous and intermittent water supply systems. The continuous system provides water 24 hours a day through a pressurized network. It has advantages like fresh water availability and meeting fire demands quickly, but can waste more water from leaks. The intermittent system divides the area into zones and supplies each for fixed hours due to limited water availability. It requires larger pipes but less infrastructure. Both systems can experience contamination issues, but intermittent systems are more vulnerable. The document compares the key aspects of the two approaches and discusses challenges to achieving continuous supply in India.
The document discusses potential environmental impacts from the Lancang-Mekong Development Plan (LMDP) and the Pak Beng Hydropower Project. It divides the study area into three zones and summarizes key impacts for each zone. Zone 1 may experience bed and bank erosion from dredging, port construction, and increased boat traffic. Zone 2 will see significant impacts from the Pak Beng reservoir, including permanent flooding of habitats, changes to fish migration, and loss of riverine ecology. Zone 3 faces risks from altered hydrology and sediment from both the LMDP channel works and Pak Beng dam operations downstream.
1. Managed Aquifer Recharge (MAR) and groundwater buffering are ancient techniques that can help address water crises by storing water underground for future use.
2. The document discusses several case studies where MAR has been used successfully for over 65 years to recharge groundwater and ensure stable water supply, including projects in Jordan and the Netherlands.
3. Going forward, the document argues for improving cooperation and information sharing on scaling up MAR implementation through practical projects and research, addressing water quality, management, and governance issues to develop tailored solutions.
The document discusses restoration efforts along the Truckee River, which flows from the alpine Lake Tahoe region to the desert basin. It has undergone extensive habitat degradation and watershed impacts over the last century. Restoration projects use various techniques like wetland and stream restoration to improve habitat, reduce flooding, and enhance water quality. They involve partnerships across many agencies and non-profits to restore the river corridor from its headwaters to mouth.
The document provides guidance on artificial groundwater recharge projects. It discusses planning artificial recharge by identifying suitable areas, conducting scientific studies on hydrology and hydrogeology, and assessing available source water and subsurface storage potential. The document also covers artificial recharge techniques and designs, monitoring mechanisms, and case studies of recharge projects in India. The overall aim is to provide information to augment groundwater resources through modified movement of surface water.
The document discusses a public information centre being held to introduce a study examining basement flooding and surface flooding in Study Area 40. The meeting will present information on the causes of flooding, possible solutions, and next steps in the study process. Attendees are encouraged to provide input. The study aims to identify solutions to reduce flooding risks and improve stormwater quality in the area.
The document summarizes information presented at a public information centre regarding a study of basement flooding and stormwater runoff quality in Study Area 34. It provides background on the study area and objectives, potential causes of flooding, and possible solutions that were presented, including source controls, conveyance controls, and end-of-pipe controls. Feedback was sought from the public to help identify a preferred solution and finalize the master plan.
Singapore Managing Stormwater For Water Resource And Flood Control 水资源介绍dreamsion
1. Singapore faces challenges of managing its water resources and flood control due to its dense urbanization and flat terrain.
2. PUB oversees an integrated water management system including water catchment, supply, used water treatment, and stormwater drainage.
3. Singapore has implemented extensive drainage infrastructure and development controls to reduce flood-prone areas from 3,178 ha to less than 100 ha, with limited flood depths.
Rain water harvesting involves collecting and storing rainwater for beneficial use. It can be collected from rooftops or on land surfaces and stored in tanks, reservoirs, or recharged into groundwater. Properly implemented rooftop rainwater harvesting provides a sustainable water source, recharges groundwater, and has many environmental benefits. An effective system includes gutters and downpipes to collect water and direct it into a storage tank with filters to remove debris. Excess water can be recharged into the ground to further augment groundwater supplies.
India; Rain Water Harvesting and Artificial RechargeD5Z
This document provides an overview of artificial recharge and rainwater harvesting case studies in India. It begins with background on groundwater development and the need for artificial recharge. It then describes traditional artificial recharge practices used in different regions of India. The document also discusses planning, techniques, and efforts by the Central Ground Water Board to implement artificial recharge projects. Finally, it provides success stories of artificial recharge projects in various states that have recharged groundwater and raised water levels.
Drainage masterplan for delhi - recommendationsAkanksha Chopra
The document presents a drainage master plan for Delhi that addresses several issues with the current drainage system, including a lack of separation between sewage and stormwater infrastructure, increased runoff from paved surfaces, and pollution of water sources. The master plan proposes policies for implementing natural water management strategies like "zero runoff" standards, managing stormwater locally through watershed plans and drainage maps, restoring natural systems through bioremediation, and protecting permeable surfaces and groundwater recharge. It highlights the need to minimize runoff and catch stormwater at its source using green streets and parks rather than conveying it quickly through piped drains to water bodies.
This document summarizes a public information center for a study to reduce basement and surface flooding in Study Area 39 located in Etobicoke. The study will identify the preferred solution to improve the stormwater and sanitary systems and reduce flooding risks. Alternative solutions being considered include source controls on private property, conveyance controls in sewer systems, and end-of-pipe controls such as wet ponds, underground storage, and dry ponds. Residents experienced flooding in 144 properties during a 2013 storm. The study area, causes of flooding, and Class EA process are described.
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.
Intermittent Water Supplies – An International Update by Richard Taylor, Tho...INFRAMANAGE.COM
The document summarizes a presentation on intermittent water supplies from an international conference. It discusses the causes of intermittent supply, including aging infrastructure, high demand, water scarcity from climate change, and poor management. This can create a vicious cycle of more leaks and pipe failures. The presentation recommends strategies for utilities experiencing intermittent supply such as sectorizing their network to identify high leak areas, renewing poor pipes, monitoring flows and pressures, actively detecting and fixing leaks, and ultimately achieving 24/7 water supply to improve services and management. Moving to a continuous supply provides benefits like better water quality, reduced costs, and increased revenues.
The document discusses sustainable site development and low impact development techniques. It provides an overview of low impact development specifics including maintaining natural hydrology, selecting appropriate green building certification credits, and using techniques like bioretention areas, vegetated swales, permeable paving, and rainwater harvesting. The summary also mentions how these techniques can help projects earn certain LEED credits for stormwater management and reducing heat island effect.
This document outlines groundwater management strategies for municipal officials. It notes that while the region receives abundant precipitation, local overuse and water quality problems are still possible if left unmanaged. It then describes a model groundwater protection ordinance that has been adopted by several Dutchess County towns. The ordinance establishes development standards and best practices to safeguard both groundwater quantity and quality. These include regulating certain land uses, prohibiting new underground fuel tanks, guidance for cluster subdivisions, and more rigorous pumping test requirements. The model aims to preserve aquifer and stream flows while also addressing issues like pharmaceutical contamination and climate change impacts. Towns can adopt this law or planning boards can apply its guidance under the State Environmental Quality Review Act.
The document discusses the history, pollution, and restoration of the Adyar River in Chennai, India. It notes that the river was predominantly used for agriculture and navigation historically but became polluted due to urbanization and wastewater discharge. A restoration project was undertaken to improve water quality, enhance tidal exchange, restore habitats, and protect shorelines through measures like excavating debris, mangrove planting, and monitoring water quality. Studies found that the restored areas of the Adyar creek and estuary improved ecologically compared to non-restored areas.
This document provides information from a Public Information Centre meeting regarding a study to address basement flooding and surface water pollution in Study Area 35. The meeting introduced the problem, study approach, and potential solutions to reduce flooding risk and improve water quality. Attendees were encouraged to provide feedback and input. Next steps include considering public comments to evaluate alternative solutions, with a follow up meeting planned for late 2016 to present recommendations.
The document summarizes a public information centre for a basement flooding and water quality improvement study in Study Area 41. It provides background on the study area and objectives of the meeting, which are to present issues like flooding causes and impacts, potential alternative measures, and next steps. It also outlines the municipal environmental assessment process and opportunities for public input.
This document provides information about a public information center regarding an investigation into basement flooding and stormwater runoff quality control in Study Area 38. The meeting introduces the project background, study area, potential causes of flooding, possible solutions that will be evaluated, and next steps. Attendees can view displays, ask questions, and provide comment sheets. Potential solutions that will be evaluated include source controls on private property, conveyance controls like road retrofits and local bioretention, and end-of-pipe controls such as wetlands, dry ponds, and underground storage tanks. Criteria for evaluating solutions include environmental, technical, social, and economic factors. The project team will consider public comments received by June 1st and
February 11, 2014 public meeting presentation for three proposed stormwater facility management projects off of Cabin Branch of Great Seneca Creek. (pdf file)
This project had three objectives: 1) Reduce downstream flood flows, 2) Maximize use of low-lying lands for flood water storage, and 3) Maximize well field production. It achieved these objectives through constructing berms and ditches to redirect floodwater onto a wellfield for storage and aquifer recharge, improving wetland hydrology and reducing offsite flooding. Monitoring showed improved wetland hydroperiods, vegetative recovery in wetlands, and the project ended under budget.
The document discusses potential environmental impacts from the Lancang-Mekong Development Plan (LMDP) and the Pak Beng Hydropower Project. It divides the study area into three zones and summarizes key impacts for each zone. Zone 1 may experience bed and bank erosion from dredging, port construction, and increased boat traffic. Zone 2 will see significant impacts from the Pak Beng reservoir, including permanent flooding of habitats, changes to fish migration, and loss of riverine ecology. Zone 3 faces risks from altered hydrology and sediment from both the LMDP channel works and Pak Beng dam operations downstream.
1. Managed Aquifer Recharge (MAR) and groundwater buffering are ancient techniques that can help address water crises by storing water underground for future use.
2. The document discusses several case studies where MAR has been used successfully for over 65 years to recharge groundwater and ensure stable water supply, including projects in Jordan and the Netherlands.
3. Going forward, the document argues for improving cooperation and information sharing on scaling up MAR implementation through practical projects and research, addressing water quality, management, and governance issues to develop tailored solutions.
The document discusses restoration efforts along the Truckee River, which flows from the alpine Lake Tahoe region to the desert basin. It has undergone extensive habitat degradation and watershed impacts over the last century. Restoration projects use various techniques like wetland and stream restoration to improve habitat, reduce flooding, and enhance water quality. They involve partnerships across many agencies and non-profits to restore the river corridor from its headwaters to mouth.
The document provides guidance on artificial groundwater recharge projects. It discusses planning artificial recharge by identifying suitable areas, conducting scientific studies on hydrology and hydrogeology, and assessing available source water and subsurface storage potential. The document also covers artificial recharge techniques and designs, monitoring mechanisms, and case studies of recharge projects in India. The overall aim is to provide information to augment groundwater resources through modified movement of surface water.
The document discusses a public information centre being held to introduce a study examining basement flooding and surface flooding in Study Area 40. The meeting will present information on the causes of flooding, possible solutions, and next steps in the study process. Attendees are encouraged to provide input. The study aims to identify solutions to reduce flooding risks and improve stormwater quality in the area.
The document summarizes information presented at a public information centre regarding a study of basement flooding and stormwater runoff quality in Study Area 34. It provides background on the study area and objectives, potential causes of flooding, and possible solutions that were presented, including source controls, conveyance controls, and end-of-pipe controls. Feedback was sought from the public to help identify a preferred solution and finalize the master plan.
Singapore Managing Stormwater For Water Resource And Flood Control 水资源介绍dreamsion
1. Singapore faces challenges of managing its water resources and flood control due to its dense urbanization and flat terrain.
2. PUB oversees an integrated water management system including water catchment, supply, used water treatment, and stormwater drainage.
3. Singapore has implemented extensive drainage infrastructure and development controls to reduce flood-prone areas from 3,178 ha to less than 100 ha, with limited flood depths.
Rain water harvesting involves collecting and storing rainwater for beneficial use. It can be collected from rooftops or on land surfaces and stored in tanks, reservoirs, or recharged into groundwater. Properly implemented rooftop rainwater harvesting provides a sustainable water source, recharges groundwater, and has many environmental benefits. An effective system includes gutters and downpipes to collect water and direct it into a storage tank with filters to remove debris. Excess water can be recharged into the ground to further augment groundwater supplies.
India; Rain Water Harvesting and Artificial RechargeD5Z
This document provides an overview of artificial recharge and rainwater harvesting case studies in India. It begins with background on groundwater development and the need for artificial recharge. It then describes traditional artificial recharge practices used in different regions of India. The document also discusses planning, techniques, and efforts by the Central Ground Water Board to implement artificial recharge projects. Finally, it provides success stories of artificial recharge projects in various states that have recharged groundwater and raised water levels.
Drainage masterplan for delhi - recommendationsAkanksha Chopra
The document presents a drainage master plan for Delhi that addresses several issues with the current drainage system, including a lack of separation between sewage and stormwater infrastructure, increased runoff from paved surfaces, and pollution of water sources. The master plan proposes policies for implementing natural water management strategies like "zero runoff" standards, managing stormwater locally through watershed plans and drainage maps, restoring natural systems through bioremediation, and protecting permeable surfaces and groundwater recharge. It highlights the need to minimize runoff and catch stormwater at its source using green streets and parks rather than conveying it quickly through piped drains to water bodies.
This document summarizes a public information center for a study to reduce basement and surface flooding in Study Area 39 located in Etobicoke. The study will identify the preferred solution to improve the stormwater and sanitary systems and reduce flooding risks. Alternative solutions being considered include source controls on private property, conveyance controls in sewer systems, and end-of-pipe controls such as wet ponds, underground storage, and dry ponds. Residents experienced flooding in 144 properties during a 2013 storm. The study area, causes of flooding, and Class EA process are described.
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.
Intermittent Water Supplies – An International Update by Richard Taylor, Tho...INFRAMANAGE.COM
The document summarizes a presentation on intermittent water supplies from an international conference. It discusses the causes of intermittent supply, including aging infrastructure, high demand, water scarcity from climate change, and poor management. This can create a vicious cycle of more leaks and pipe failures. The presentation recommends strategies for utilities experiencing intermittent supply such as sectorizing their network to identify high leak areas, renewing poor pipes, monitoring flows and pressures, actively detecting and fixing leaks, and ultimately achieving 24/7 water supply to improve services and management. Moving to a continuous supply provides benefits like better water quality, reduced costs, and increased revenues.
The document discusses sustainable site development and low impact development techniques. It provides an overview of low impact development specifics including maintaining natural hydrology, selecting appropriate green building certification credits, and using techniques like bioretention areas, vegetated swales, permeable paving, and rainwater harvesting. The summary also mentions how these techniques can help projects earn certain LEED credits for stormwater management and reducing heat island effect.
This document outlines groundwater management strategies for municipal officials. It notes that while the region receives abundant precipitation, local overuse and water quality problems are still possible if left unmanaged. It then describes a model groundwater protection ordinance that has been adopted by several Dutchess County towns. The ordinance establishes development standards and best practices to safeguard both groundwater quantity and quality. These include regulating certain land uses, prohibiting new underground fuel tanks, guidance for cluster subdivisions, and more rigorous pumping test requirements. The model aims to preserve aquifer and stream flows while also addressing issues like pharmaceutical contamination and climate change impacts. Towns can adopt this law or planning boards can apply its guidance under the State Environmental Quality Review Act.
The document discusses the history, pollution, and restoration of the Adyar River in Chennai, India. It notes that the river was predominantly used for agriculture and navigation historically but became polluted due to urbanization and wastewater discharge. A restoration project was undertaken to improve water quality, enhance tidal exchange, restore habitats, and protect shorelines through measures like excavating debris, mangrove planting, and monitoring water quality. Studies found that the restored areas of the Adyar creek and estuary improved ecologically compared to non-restored areas.
This document provides information from a Public Information Centre meeting regarding a study to address basement flooding and surface water pollution in Study Area 35. The meeting introduced the problem, study approach, and potential solutions to reduce flooding risk and improve water quality. Attendees were encouraged to provide feedback and input. Next steps include considering public comments to evaluate alternative solutions, with a follow up meeting planned for late 2016 to present recommendations.
The document summarizes a public information centre for a basement flooding and water quality improvement study in Study Area 41. It provides background on the study area and objectives of the meeting, which are to present issues like flooding causes and impacts, potential alternative measures, and next steps. It also outlines the municipal environmental assessment process and opportunities for public input.
This document provides information about a public information center regarding an investigation into basement flooding and stormwater runoff quality control in Study Area 38. The meeting introduces the project background, study area, potential causes of flooding, possible solutions that will be evaluated, and next steps. Attendees can view displays, ask questions, and provide comment sheets. Potential solutions that will be evaluated include source controls on private property, conveyance controls like road retrofits and local bioretention, and end-of-pipe controls such as wetlands, dry ponds, and underground storage tanks. Criteria for evaluating solutions include environmental, technical, social, and economic factors. The project team will consider public comments received by June 1st and
February 11, 2014 public meeting presentation for three proposed stormwater facility management projects off of Cabin Branch of Great Seneca Creek. (pdf file)
This project had three objectives: 1) Reduce downstream flood flows, 2) Maximize use of low-lying lands for flood water storage, and 3) Maximize well field production. It achieved these objectives through constructing berms and ditches to redirect floodwater onto a wellfield for storage and aquifer recharge, improving wetland hydrology and reducing offsite flooding. Monitoring showed improved wetland hydroperiods, vegetative recovery in wetlands, and the project ended under budget.
Restore ~1,400 feet by returning the form and function of the channel to dynamic equilibrium and improve the ecological processes of the riparian corridor.
Stabilize the eroding stream banks
Water quality improvement
Sustainability
Infrastructure protection
Habitat improvement
Rocky Run Tributary at Hickory Hollow Lane Stream Restoration Feb. 2021Fairfax County
The Rocky Run Tributary at Hickory Hollow Lane project goals are to stabilize the stream, reduce excess sediment from flowing downstream; improve aesthetics, reduce hazards, reconnect the stream to the floodplain, improve the riparian buffer and reduce road flooding, among other goals.
Pimmit Run Tributary at George Marshall High School Stream Restoration 9/29/2020Fairfax County
The virtual community meeting held on Sept 29, 2020 advised residents about the proposed stream restoration in a Pimmit Run tributary at the George Marshall High School in Fairfax County, VA.
Morgan's Run - Schuylerville's Infrastructure Problemswlukas
The document discusses the existing drainage infrastructure for Morgan's Lookout Subdivision and proposed upgrades. It analyzes the two existing retention basins - the Upper and Lower basins - which are ineffective at retaining stormwater. For the Upper Basin, minor repairs and upgrades are recommended at a cost of less than $15,000. For the Lower Basin, installing a new storm sewer to eliminate use of the basin is recommended, consistent with other planned infrastructure, at a cost of $350,000-$400,000.
The document discusses the drainage infrastructure for Morgan's Lookout Subdivision and Schuylerville areas. It identifies two viaducts that convey much of the flow from these areas and notes that the existing retention basins are ineffective at slowing stormwater. It provides details on the existing upper and lower basins, including their key features, issues, and potential upgrade approaches. Upgrading the upper basin is estimated to cost less than $15,000 while replacing the lower basin with a new storm sewer is estimated to cost $350,000 to $400,000.
Dead Run Stream Restoration Stream Team Kick Off August 18, 2015Fairfax County
The document discusses a proposed stream restoration project along two segments of Dead Run in Fairfax County, VA, outlining the project limits, benefits of improving water quality and habitat, and providing an overview of the existing conditions and alternative approaches being considered to refine the restoration design while minimizing tree loss and impacts to properties. It also reviews regulatory drivers and estimated improvements to water quality and flood reduction from the project.
Cameron Run Tributary at La Vista Drive Stream Restoration June 2020Fairfax County
This Fairfax County project seeks to stabilize excessive, ongoing stream erosion which threatens sanitary sewer pipes, undermines trees, impacts water quality and degrades habitat for aquatic life.
Lower Potomac / Little Falls Watershed Study Public MeetingMCDEP
This document provides an overview of watershed assessments being conducted for the Lower Potomac Direct and Little Falls watersheds in Montgomery County, Maryland. It discusses the watershed study process, which includes identifying the watersheds, collecting and analyzing data, prioritizing projects, drafting assessments, soliciting public input, and developing implementation plans. Field assessments have identified potential stormwater management projects such as RainScapes neighborhoods and best management practices, as well as stream restoration needs. The public meeting aims to receive feedback on draft watershed assessments and project areas identified for improvements.
This document discusses flooding challenges in Fairfax County and options to address them. It provides a history of stormwater management in the county from the 1940s to present. It also summarizes significant rainfall events that have impacted the county. The document evaluates options to address flooding for existing development, including enhancing overland relief, improving stormwater conveyance, upsizing systems, upgrading culverts, and property acquisition. It also discusses challenges from redevelopment. The document considers policy issues and provides recommendations, including allowing use of yards and roads for overflow, upsizing pipes to 100-year standards, and encouraging flood insurance. Contact information is provided for more details.
Nottoway Park Stormwater and Water Quality Improvements Phases 1, 2, & 3Fairfax County
This document discusses stormwater management improvements at Nottoway Park in Fairfax County, Virginia. It outlines a multi-phase plan to install various best management practices (BMPs) like bioretention cells, engineered dry swales, step pool conveyances, and wetland creation. Phase 1 includes outfall stabilization and step pools at two locations. Future phases will implement additional BMPs like floodplain reconnection, dry swales with check dams, and converting a dry detention basin into a wetland. The project aims to improve water quality in Accotink Creek and address drainage issues while enhancing the park environment.
Restore ~4,000 feet by returning the form and function of the channel to dynamic equilibrium and improve the ecological processes of the riparian corridor.
Griffin specializes in dewatering and groundwater control for challenging construction projects using techniques like wells, wellpoints, and relief wells to separate water from soil and control groundwater levels. Proper dewatering is important as it allows for safer and more efficient construction by improving soil properties and intercepting water, while improper dewatering can have consequences like unstable excavations and increased costs. The document then provides details on dewatering methods, considerations for selecting a system, and several case studies of Griffin's dewatering work on large infrastructure projects.
Dead Run Stream Restoration Project Meeting: Feb. 18, 2015Fairfax County
This document summarizes a public meeting to discuss a stream restoration project along Dead Run in Fairfax County, Virginia. The meeting outlined Fairfax County's watershed planning efforts, introduced the Dead Run Stream Restoration Project objectives to improve water quality and reduce pollution, and presented the proposed design which uses natural channel design principles to restore three segments of the stream in a way that minimizes tree removal and disturbance. Next steps include finalizing the preliminary design, another public meeting, final design, construction anticipated in 2017-2018, and ongoing maintenance after completion.
Green Infrastructure Workshop for Design ProfessionalsNew Jersey Future
On May 26, 2016, Michele Adams of Meliora Design and Tavis Dockwiller of Viridian Landscape Studio gave a presentation on green infrastructure during a workshop put together by New Jersey Future. The workshop was held for design professionals like engineers, landscape architects, and architects who design and/or review stormwater management systems in the Highlands of New Jersey.
This document summarizes a public information meeting about a study investigating basement flooding and stormwater runoff quality control in Study Area 36 in Etobicoke, Toronto. The meeting provided background on the study purpose and objectives, potential causes of flooding in the area, and possible alternative solutions. Attendees were encouraged to provide feedback and input on the evaluation criteria for solutions. Homeowners were also informed about actions they can take to prevent future flooding and about the City's subsidy program for flood protection devices.
The document summarizes the water management plan for the Orange County Great Park in Irvine, California. It details the construction of a storm water reuse pond system to capture and store runoff from the park's South Lawn area. The pond system provides around 55% of the irrigation needs for the South Lawn and helps meet stormwater permit requirements. It has received recognition for its cost-effective design and its role in supporting the park's sustainability goals. The pond system is intended to be expandable to accommodate future phases of park development.
Parks breakout room from FrogWatch 102 trainingMCDEP
Interested in monitoring Frogs on Montgomery Parks land? Outside of Cities of Gaithersburg, Rockville, and Takoma Park. This presentation provides you with more information about how to register your site and how to register as a Montgomery Parks' volunteer.
The document provides an agenda and details for a Montgomery FrogWatch volunteer training. It discusses reminders and refreshers on monitoring protocols, wetland types and site selection, and data entry details. It reviews the monitoring process, calling intensity index, online data submission through FrogWatch-FieldScope, and resources for volunteers. Breakout groups are held to discuss monitoring on parkland or independently, with a question and answer session at the end.
2021 montgomery county md 1st volunteer training sessionMCDEP
FrogWatch 101, a General overview: Learn about frogs and toads of Montgomery County, how to become a FrogWatch volunteer, and exciting updates to the program.
This document provides information about the Montgomery County FrogWatch chapter, including volunteer commitments, local amphibians and wetlands, monitoring protocols, and data submission. Volunteers are trained to identify frog and toad calls, monitor wetland sites weekly between February and August, and submit call intensity data online. Monitoring involves listening for 3 minutes after a 2 minute acclimation and recording weather data to track ecological changes over time.
The document provides information on the common frogs and toads found in Montgomery County, Maryland. It lists 12 species that are present in the county and provides pictures and details on their physical characteristics, habitats, calls, and seasonal activity. The document also includes a species calling calendar showing when each species is most active through the year.
Montgomery County FrogWatch Chapter volunteer training session 2017MCDEP
This portion of the presentation includes information about FrogWatch, safety, brief descriptions of frogs and toads, site selection, site registration, monitoring protocols, online submission, and next steps for volunteers. The presentation includes resources and links to the FrogWatch and FieldScope.
2016 frogs and toads of Montgomery County, MDMCDEP
This document provides information on the common frogs and toads found in Montgomery County, Maryland. It lists 12 frog and toad species that are present in the county and provides a species calling calendar showing when each calls from February to August. For several of the species, including the wood frog, spring peeper, pickerel frog, and American toad, it provides pictures and details on physical characteristics, habitat, and voice/call. It also includes recommendations to consult additional local and regional resources for more information on frog and toad identification.
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Montgomery County, MD Department of Environmental Protection Stream stewards volunteer program orientation. Information about how our local waters are affected by runoff and what we can do to help.
Information about the County's Water Quality Protection Charge and the Department of Environmental Protection.
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Architectural and constructions management experience since 2003 including 18 years located in UAE.
Coordinate and oversee all technical activities relating to architectural and construction projects,
including directing the design team, reviewing drafts and computer models, and approving design
changes.
Organize and typically develop, and review building plans, ensuring that a project meets all safety and
environmental standards.
Prepare feasibility studies, construction contracts, and tender documents with specifications and
tender analyses.
Consulting with clients, work on formulating equipment and labor cost estimates, ensuring a project
meets environmental, safety, structural, zoning, and aesthetic standards.
Monitoring the progress of a project to assess whether or not it is in compliance with building plans
and project deadlines.
Attention to detail, exceptional time management, and strong problem-solving and communication
skills are required for this role.
2. Today’s Agenda
Sources of Water on Earth
Montgomery County background
What is a Watershed & Runoff?
Intro to Stormwater
What the County is Doing to Protect Our Streams
Goals of the Project
Proposed Pond Retrofit
Questions/Comments
2
3. Sources of Water
About 97% is salt water
About 2% is frozen
Only 1% is available for drinking water
Across the country, most potable water is from groundwater
In Maryland, most is from surface water
Potential for greater impacts from runoff in Maryland
3
4. Montgomery County, MD
500 sq. miles
970,000 people
Second only to Baltimore City within
Maryland in average people per
square mile
184 languages spoken
About 12% impervious surface overall
About the size of Washington DC
Over 1,500 miles of streams
Two major river basins:
Potomac
Patuxent
Eight local watersheds
District of Columbia
Impervious: Not allowing water to
soak through the ground.
4
5. What is a Watershed?
A watershed is an area
from which the water
above and below ground
drains to the same place.
Different scales of
watersheds:
Chesapeake Bay
Eight local watersheds
Neighborhood (to a storm
drain)
5
6. What is Runoff?
Water that does not soak into the ground becomes
surface runoff. This runoff flows over hard surfaces like
rooftops, driveways and parking lots collecting potential
contaminants and flows:
• Directly into streams
• Into storm drain pipes, eventually leading to
streams
• Into stormwater management facilities, then
streams
Two Major Issues:
Volume/Timing of Runoff
Water Quality
6
7. What is the County doing to
protect our Streams?
Must meet regulatory requirements
Federal Clean Water Act permit program
MS4 = Municipal Separate Storm Sewer System
Applies to all large and medium Maryland jurisdictions
County programs
Restore our streams and watersheds
Add runoff management
Meet water quality protection goals
Reduce pollutants getting into our streams
Educate and engage all stakeholders
Individual actions make a difference
Focus on watersheds showing greatest impacts
7
8. MS4 Permit: What is it?
Montgomery County is responsible for:
• What goes into our storm drain pipes
• What comes out of them
• What flows into the streams
Requires additional stormwater management for 20
percent of untreated impervious surfaces (4,292 acres =
6.7 square miles). That’s about three times the size of
Takoma Park.
8
9. Overall Goals of the Project
Provide water quality treatment and downstream channel
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protection to meet MS4 program requirements.
Improve ecological value of existing stormwater
management facilities.
Improve existing landscaping and plant diversity of
existing facilities.
Upgrade existing facilities to comply with safety and
design standards.
Utilize existing open space to provide stormwater
management.
12. Drainage Area
9.24 acre drainage
area to pond
51% impervious
Land cover includes
roadway, sidewalks,
manicured
lawns/landscaping.
12
13. Existing Conditions
Constructed in the early 1980s
Fully developed drainage area
Does not provide water quality functions
High groundwater exists in bottom of facility
Does not meet current safety and design standards
(materials and conveyance)
Sinkholes have recently developed in embankment
Maintenance access is inadequate
Minor sediment deposition from upstream erosion
13
14. Existing Quail Valley Pond # 1
View of facility from Centerway Rd
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Existing substandard riser.
Bottom of facility showing base flow
Sinkhole resulting from riser
degradation.
15. Retrofit Design Details
Grade bottom of pond and eastern bank.
Create a 3.5’ deep wet pool.
Remove and replace existing riser and outflow pipe.
Reconstruct portion of existing embankment.
Remove small diameter trees within limits of work.
Provide access path for maintenance.
Re-vegetate pond and plant additional trees.
15
20. Existing Conditions
Constructed in the early 1980s
Fully developed drainage area
Dry detention pond constructed in a stream valley
Very few ecological or water quality benefits
Good condition, but riser is nearing end of service life
Maintenance access is inadequate
Minor sediment deposition from upstream erosion
Degradation and incision of downstream channel
20
22. Retrofit Design Details
Enlarge the storage volume to treat 50% of the
Water Quality Volume (WQv)
Add a sand berm to increase infiltration
Grade an additional storage basin in existing open
space adjacent to stream banks
Safely pass larger storms, including the 100-year
storm
22
23. Retrofit Design Details
Install a forebay at the top of the pond to improve
maintenance
Remove existing risers and replace with cobble riffle
structures
Restore downstream channel using step pools
Revegetate pond with native plants
23
30. Drainage Area
20.5 acre drainage
area to facility
37% impervious
Land cover includes
roadway, sidewalks,
manicured lawns,
open space, and
landscaping.
30
31. Existing Site Conditions
Parcel is owned by the Flower Hill Central Corporation
Parcel provides open space for Flower Hill Community
Two stormdrain systems connect under open space
Flow in existing stormdrain is not treated for Water Quality or
Channel Protection
Space is available on site to provide an SWM facility
Site is accessible from Strawberry Knoll Road
31
32. Existing Open Space
Location of Proposed SWM Facility.
32
Open space south of proposed facility.
Location of proposed construction and
maintenance access.
Existing inlet which SWM system will
connect to.
33. SWM Design Details
Underground gravity driven treatment system.
Three components: pretreatment, storage, and
treatment.
Pretreatment simplifies and reduces the need for
maintenance.
Storage System stores stormwater until filtered.
Filter replaces natural functions depleted with development.
Provide stable vegetated access path for future
maintenance.
33
39. Quail Valley Pond # 1 Construction Access
Access from Centerway Road
Tree removal and grading
Tree protection where
needed
Mulch placed on path and
removed after construction
Access will be stabilized to
prevent sediment transport
to Centerway Road
39
40. Quail Valley Pond # 2 Construction Access
Access from Centerway
Road
Clear width will likely
require tree removal and
grading
Tree protection where
needed
Mulch placed on path
and removed after
construction
40
41. Strawberry Knoll Construction Access
Access from Strawberry Knoll
Road
Access will be stabilized to
prevent sediment transport to
Strawberry Knoll Road
Curb ramp and grass pavers will
be provided at final stages of
construction.
41
Location of proposed construction and
maintenance access.
44. Schedule
Public meeting to discuss 30% designs 2/11/2014
60% design – Summer 2014
90% design – Winter 2014
Permits issued – Spring 2015
Construction – Summer 2015
44
45. Questions/Comments?
Darian Copiz, Montgomery County Department of Environmental Protection
240-777-7774 / Darian.Copiz@montgomerycountymd.gov
www.montgomerycountymd.gov/watershedrestoration
Click on “Stream Restoration” and “Stormwater Pond Retrofits”
45
Editor's Notes
Millions have lived without love. No one has lived without water.Turkish businessman, 1998I thought this was hilarious, I got the quote from Jerry’s CD … we do not have to use it.
Federal Clean Water ActNPDES: National Pollutant Discharge Elimination System MS4: Municipal Separate Storm Sewer System PermitMS4 Permit sets priorities for all Watershed