Posts Tagged ‘retrofit’
September 6th, 2012 by admin
Stormwater Retrofitting and Nutrient Accounting in the Chesapeake Bay Watershed
September 20, 2012
12:00 PM – 1:30 PM
Tom Schueler & Cecilia Lane
Chesapeake Stormwater Network
Over the last two decades, the Chesapeake Bay states have pioneered new techniques for finding, designing and delivering retrofits to remove pollutants, improve stream health and maintain natural hydrology in developed watersheds. Several important regulatory drivers such as local MS-4 permits, local TMDLs and the Chesapeake Bay TMDL are likely to increase the amount of future stormwater retrofit implementation across the Chesapeake Bay watershed. The webcast will profile CSN’s and the Chesapeake Bay Program’s soon-to-be-released Expert Panel Final Recommendations on Retrofitting for Nutrient Reduction in the Chesapeake Bay Watershed. This training is for anyone who would like a better understanding of the newly developed retrofit crediting process.
To view the webcast
Due to technical problems during the webcast, several of the equations did not display correctly. Please download a pdf copy of the slides for reference:
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August 28th, 2012 by admin
A new publication by Water Environment & Technology (WE&T) Magazine discussing creating a market for stormwater retrofits to harness self-interest, leverage river protections, and promote sustainable development in the District of Columbia.Making Stormwater Retrofits Pay (.pdf)
“If retrofitting your property with a stormwater best management practice (BMP) paid dividends, would you do it? How about someone who’s not particularly environmentally conscious or concerned about the impacts of stormwater on local waterbodies?”
–Brian Van Wye
August 10th, 2012 by admin
Over the last two decades, the Chesapeake Bay states have pioneered new techniques for finding, designing and delivering retrofits to remove pollutants, improve stream health and maintain natural hydrology in developed watersheds. Several important regulatory drivers are likely to increase the amount of future stormwater retrofit implementation across the Chesapeake Bay watershed. Some communities need to install retrofits to meet pollutant reduction targets under recently issued municipal stormwater permits or meet local TMDLs. In addition, each of the seven Bay states are considering greater use of urban stormwater retrofits as part of an overall strategy to meet nutrient and sediment load reduction targets for existing urban development under the Chesapeake Bay TMDL.
In the Fall of 2011, an Expert Panel was convened to review all of the available science on the pollutant removal performance and runoff reduction capability of BMPs that can be used to derive methods or protocols to derive nutrient and sediment removal rates for individual retrofits. On October 9, 2012 the final recommendations were approved by the Water Quality Goal Implementation Team! The recommendations with or without appendices can be found below. Great job to the panelists!!
Urban Stormwater Retrofits Final Report(s)
The following training resources have been created for explaining the panel recommendations – enjoy!
July 2nd, 2012 by admin
Presented by the Chesapeake Stormwater Network and Center for Watershed Protection.
A combined effort between CSN and the Center for Watershed Protection with special guests from Montgomery County, MD, Arlington County, VA, and Seattle Public Utilities. This webcast introduces a retrofitting practice hierarchy and describes how to find, prioritize, and build the most effective retrofits. The webcast also discusses how much land area in a watershed can feasibly be retrofitted and at what cost based on dozens of retrofit studies conducted in urban, suburban, and rural watersheds.
June 8th, 2012 by admin
Stormwater retrofitting is providing stormwater treatment on existing development that is currently untreated by any BMP or is inadequately treated by an existing BMP. Here you will find multiple resources that define stormwater retrofits, explain the process behind finding potential retrofit opportunities as well as the challenges that stromwater retrofitting may pose.
April 13th, 2012 by admin
September 15, 2011
Presented by Chesapeake Stormwater Network.
Local stormwater managers will need to play a greater role in enhancing public involvement, expanding stormwater education and delivering residential stewardship practices. This webcast will focus on how local governments and watershed groups can engage the public to improve the quality of runoff from their homes and yards. The webcasts will feature the lessons learned in implementing programs to build rain gardens, disconnect roof leaders, install rain barrels and plant trees to restore the Bay. Learn about the tricks for reaching out to the public and providing meaningful incentives to motivate homeowners to keep stormwater on their property. Case studies will be featured from several local demonstration projects across the Bay watershed.
April 10th, 2012 by admin
New report by the Natural Resources Defense Council on Financing Stormwater Retrofits in Philadelphia and Beyond.
The paper begins with a discussion of Philadelphia as a case study. It evaluates their new stormwater fee structure and assesses its relative ability to create a potential market for financing stormwater retrofits. The paper then goes on to discuss alternative ways to financing retrofits in the private market in Philadelphia and beyond and demonstrates how policy frameworks can play a crucial role to attracting private investors.
Download the full report:Financing Stormwater Retrofits in Philadelphia and Beyond (.pdf)
August 18th, 2011 by admin
August 18, 2011
Presented by Chesapeake Stormwater Network.
Stormwater retrofitting will be a major strategy for many localities to achieve nutrient reductions to meet more stringent MS4 stormwater permits and TMDLs. This webcast focuses on how to maximize nutrient reduction through a wide range of urban stormwater retrofits and features a recommended process to find, evaluate, design and construct stormwater retrofits across an urban watershed. In addition, simple techniques and accounting methods are provided to document local stormwater nutrient reductions as part of watershed implementation plans (WIPs). The methods are also designed to find the most cost-effective combination of retrofit practices that enhances community values and environmental amenities.
May 18th, 2011 by admin
May 18, 2011
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March 1st, 2010 by admin
This Technical Bulletin presents a visual method to assess the need for stormwater pollution practices, retrofits and stewardship at existing industrial, institutional, federal and municipal facilities. Tens of thousands of these facilities exist across the Chesapeake Bay watershed, each of which has the potential to be severe stormwater hotspots, which are defined as a site that generates higher loads of pollutants and toxics, and/or has a higher risk of leaks, spills or illicit discharges. Despite the impact of stormwater hotspots on the receiving waters of the Bay, they have not been effectively regulated or managed for several reasons.
While as many as 30,000 facilities in the Bay are technically regulated under EPA’s industrial or municipal stormwater permit programs, most individual permits do not contain specific monitoring requirements or numeric limits on effluent quality. Thus, at many sites, all that is needed to comply with the permit is to make sure you have a paper document known as a stormwater pollution prevention plan present on your site. The chances that a local or state regulator will inspect your site are vanishingly small (National Research Council, 2008). Even if sites are inspected, the permits do not require any site specific or quantitative measurements to determine whether runoff is dirty or reasonably clean, which makes it difficult to trigger enforcement actions.
A second key issue is that many property managers and environmental compliance officers simply don’t understand that much about stormwater, in comparison with more traditional environmental health and workplace safety issues they must deal with every day (e.g., hazardous waste storage and disposal and spill response). Few good training materials have been developed on site-based stormwater pollution prevention techniques, and even fewer tools exist to diagnose the actual stormwater pollution problems present at a site. Consequently, there is a strong need for a quantitative diagnostic tool to assess stormwater pollution problems and identify site-specific and cost-effective solutions.