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Stormwater wetlands perform well in reducing peak flows and pollutant removal when properly designed and constructed. These wetland construction guidelines are based on experience gained at more than 30 sites across North Carolina.
A rainwater harvesting system captures stormwater runoff, often from a rooftop, and stores the water in a cistern for later use. In this guide for homeowners, the authors describe the components of a rainwater harvesting system and how they work together. Guidelines for choosing, sizing and installing the components are included.
This publication focuses on stormwater wetlands: their function, effectiveness, design,advantages and liabilities and costs.
These new design guidelines for stormwater wetlands focus on four design points: internal wetland zones, herbaceous plants that thrive in stormwater wetlands, a proper growing medium, and the importance of a flexible outlet structure and its construction.
In this publication, we summarize the current research and describe construction methods that developers can use to more effectively meet the goals of low impact development and stormwater management.
This guide provides a review of recent bioretention research and its impact on design, construction, and maintenance of bioretention stormwater systems.
This factsheet provides a review of strategies for designing and maintaining stormwater facilities to limit mosquito populations.
This publication describes structural stormwater practices that filter and reduce stormwater runoff from residential and commercial developments: permeable pavements, green roofs and cisterns. The practices described can be used in low-impact development to conserve a site's natural response to rainfall.
This publication presents maintenance guidelines for stormwater wetlands and wet ponds, two stormwater practices that are being constructed across North Carolina. Stormwater management practices must be kept in proper working order to maintain their intended functions and aesthetic appeal.
Controlling pathogens in runoff presents a growing challenge for stormwater managers and designers. This fact sheet provides an overview of pathogens: what they are, how they affect people, and how they are regulated; describes their association with stormwater runoff; and investigates stormwater management practices that may limit pathogen presence in surface waters.
This publication discusses the presence of various pollutants in rooftop runoff and establishes some general guidelines regarding the use of collected rainwater in North Carolina.
A pump for the cistern or tank of a water-harvesting system can increase the system's uses significantly. In this publication get step-by-step guidance on how to choose a pump to best suit the system.
Stormwater heated by pavement and rooftop materials can affect aquatic ecosystems in streams, especially coldwater trout streams, because of high temperatures. This web only publication describes recent research on stormwater BMPs near coldwater streams and recommends design modifications that can be applied to stormwater wetlands, wet ponds and bioretention areas to moderate stormwater runoff temperature.
This design bulletin for stormwater wetland designers and managers introduces the concept of ecosystem services, reviews how stormwater wetlands provide many of these services and describes how wetland design can enhance ecosystem services.
For permeable pavements to remain permeable, their surface level must be freely draining, making clogging prevention and street sweeping important tasks. This bulletin explores the different ways to accomplish these tasks.