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Thoughtful community land use planning and development are critical
components in maintaining and restoring water quality in America’s streams,
lakes, wetlands, estuaries and aquifers. If not carefully planned, land
development projects can adversely impact water quality and supply.
Impervious surfaces created by the construction of roads, parking lots,
rooftops and driveways can decrease groundwater infiltration of runoff
and increase runoff volumes and rates. Reduced recharge of ground
waters can negatively affect drinking water supplies and stream baseflows.
Changes in runoff volumes and rates can increase flooding, streambed
erosion and sedimentation.
Development activities typically increase pollutant loadings, e.g.,
pathogens, household chemicals, metals, fertilizers, pesticides, oil and
grease. These increases in pollutant concentrations may impair surface and
ground waters.
Construction activities disturb soil and may release sediment and other
pollutants to local streams. EPA estimates that conversion of land
produces 40 million tons per year of new sediment during construction.
States have identified sediment as the leading cause of impairment to
America’s rivers.
Increases in surface runoff, loss of vegetative buffers along streams, and
physical alteration of waterways due to development activities can change
the natural form and function of a stream. Runoff from unshaded
impervious surfaces can increase stream temperatures, often crossing the
threshold at which sensitive biota can survive and reproduce.
for Building Communities that Protect Water Resources
★★★★★ Establish community goals for water resources in the watershed
★★★★★ Direct development where most appropriate for watershed health
★★★★★ Minimize adverse impacts of development on watershed health
★★★★★ Promote opportunities for restoration
★★★★★ Assess and prevent unintended consequences of federal, state or local decisions
affecting watershed health
★★★★★ Plan for safe, adequate and affordable water supplies as an integral part of growth
★★★★★ Consider the cumulative impacts of growth management decisions on the watershed
★★★★★ Monitor and evaluate success of initiatives
For additional principles see http://www.smartgrowth.org/about/principles/default.asp
Role of the EPA
EPA recognizes that land
use decisions occur at the
state and local level, and
that inter-jurisdictional
coordination at the
watershed or regional level
results in more effective
protection of water
resources. EPA is a resource
for state and local decision
makers — our role is to
provide tools to help
identify and assess risks to
water quality, and to
maintain, protect or restore
watershed health.
A FEW GUIDELINESA FEW GUIDELINES
United States
Environmental
Protection Agency
Photo courtesy of Stephen Delaney
The Link Between Land Use and Water Resources
EPA Websites
Office of Wetlands, Oceans, This educational web module illustrates how trends in growth patterns have become
Watersheds Web Module the most significant challenge for preserving water quality and meeting future water
www.epa.gov/watertrain/smartgrowth resource goals. Contains links to many tools and resources.
Development, Community, and Information on “smart growth” policies, funding sources, networking
Environment Division’s Smart Growth Site opportunities, technical tools and resources. Included are case studies that
http://www.epa.gov/smartgrowth demonstrate how such approaches can have clear environmental benefits.
Nonpoint Sources (NPS) of Pollution Details on funding opportunities, partnerships, model ordinances, outreach and
http://www.epa.gov/owow/nps/ education, Clean Water Act Section 319 and Coastal Zone Act Reauthorization
Amendments Section 6217 programs, and other tools to manage NPS pollution.
Low Impact Development Literature review and fact sheets that discuss technologies that use the natural
http://www.epa.gov/owow/nps/lid/ landscape of a development site to detain, absorb and treat surface runoff.
National Pollutant Discharge Elimination Guidance on developing a Phase II storm water program along with a list of best
System (NPDES) Storm Water Program management practices to mitigate pollution from storm water runoff.
http://www.epa.gov/npdes/menuofbmps
Partner Websites
Center for Watershed Protection The Center provides scientifically sound information and techniques to protect
www.cwp.org and restore watersheds. It also conducts training seminars and workshops for
planners, engineers, landscape architects and municipal officials across the country.
Local Government Environmental LGEAN provides environmental management, planning, and federal and state
Assistance Network (LGEAN) regulatory information for local government officials, managers and staff. This site also
http://www.lgean.org links to a free Long-Term Hydrologic Impact Assessment Model (L-Thia).
Nonpoint Education for Municipal (NEMO) NEMO is an educational program for local land use officials that addresses the officials
http://nemo.uconn.edu relationship between land use and natural resource protection.
Smart Growth Network A growing coalition of developers, planners, government officials, lending
http://www.smartgrowth.org institutions, community groups, architects and other stakeholders. The website
contains a large library of documents on “smart growth” and offers many other links.
In Print
Protecting Water Resources With Smart Growth. US EPA, Development, Community and Environment Division. 2004. 116 pages.
EPA-231-R-04-002. (To obtain copies of these EPA publications, call (513) 891-6561 or visit www.epa.gov/smartgrowth/publications.htm)
Our Built and Natural Environments: A Technical Review of the Interactions between Land Use, Transportation, and Environmental
Quality. US EPA, Development, Community and Environment Division. 2001. 93 pages. EPA 231-R-01-002.
Potential Roles for Clean Water State Revolving Fund Programs in Smart Growth Initiatives. US EPA, Development, Community and
Environment Division. 13 pages. 2000. EPA 832-R-00-010.
Getting to Smart Growth: 100 Policies for Implementation. Smart Growth Network and International City/County Management Organiza-
tion. January 2002. Visit smartgrowth.org for ordering information.
Smart Growth for CleanWater: Helping Communities Address the Water Quality Impacts of Sprawl. June 2003. Call (202) 638-6254 to
request a copy or visit www.nalgep.org/publications to download a copy.
Smart Growth Strategies: Protecting Water Resources. Local Government Roles and Options for the Rocky Mountains and Northern Great
Plains. December 2001. Call NACo at (202)393-6226 or visit www.naco.org. Visit the GIS land use and water decision support tools page.
Coastal Sprawl: The Effects of Urban Design on Aquatic Ecosystems in the United States. Pew Oceans Commission. April 2002. Only
available on the internet at www.pewtrusts.org/pdf/env_pew_oceans_sprawl.pdf
EPA842-F-02-008
Office of Water
September 2005
Resources & Tools
Images courtesy of Hopewell Twp., NJ
and Dodson Associates, Ashfield, MA
Current Build-Out Conventional Build-Out Villiage Build-Out

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Land use and water

  • 1. Thoughtful community land use planning and development are critical components in maintaining and restoring water quality in America’s streams, lakes, wetlands, estuaries and aquifers. If not carefully planned, land development projects can adversely impact water quality and supply. Impervious surfaces created by the construction of roads, parking lots, rooftops and driveways can decrease groundwater infiltration of runoff and increase runoff volumes and rates. Reduced recharge of ground waters can negatively affect drinking water supplies and stream baseflows. Changes in runoff volumes and rates can increase flooding, streambed erosion and sedimentation. Development activities typically increase pollutant loadings, e.g., pathogens, household chemicals, metals, fertilizers, pesticides, oil and grease. These increases in pollutant concentrations may impair surface and ground waters. Construction activities disturb soil and may release sediment and other pollutants to local streams. EPA estimates that conversion of land produces 40 million tons per year of new sediment during construction. States have identified sediment as the leading cause of impairment to America’s rivers. Increases in surface runoff, loss of vegetative buffers along streams, and physical alteration of waterways due to development activities can change the natural form and function of a stream. Runoff from unshaded impervious surfaces can increase stream temperatures, often crossing the threshold at which sensitive biota can survive and reproduce. for Building Communities that Protect Water Resources ★★★★★ Establish community goals for water resources in the watershed ★★★★★ Direct development where most appropriate for watershed health ★★★★★ Minimize adverse impacts of development on watershed health ★★★★★ Promote opportunities for restoration ★★★★★ Assess and prevent unintended consequences of federal, state or local decisions affecting watershed health ★★★★★ Plan for safe, adequate and affordable water supplies as an integral part of growth ★★★★★ Consider the cumulative impacts of growth management decisions on the watershed ★★★★★ Monitor and evaluate success of initiatives For additional principles see http://www.smartgrowth.org/about/principles/default.asp Role of the EPA EPA recognizes that land use decisions occur at the state and local level, and that inter-jurisdictional coordination at the watershed or regional level results in more effective protection of water resources. EPA is a resource for state and local decision makers — our role is to provide tools to help identify and assess risks to water quality, and to maintain, protect or restore watershed health. A FEW GUIDELINESA FEW GUIDELINES United States Environmental Protection Agency Photo courtesy of Stephen Delaney The Link Between Land Use and Water Resources
  • 2. EPA Websites Office of Wetlands, Oceans, This educational web module illustrates how trends in growth patterns have become Watersheds Web Module the most significant challenge for preserving water quality and meeting future water www.epa.gov/watertrain/smartgrowth resource goals. Contains links to many tools and resources. Development, Community, and Information on “smart growth” policies, funding sources, networking Environment Division’s Smart Growth Site opportunities, technical tools and resources. Included are case studies that http://www.epa.gov/smartgrowth demonstrate how such approaches can have clear environmental benefits. Nonpoint Sources (NPS) of Pollution Details on funding opportunities, partnerships, model ordinances, outreach and http://www.epa.gov/owow/nps/ education, Clean Water Act Section 319 and Coastal Zone Act Reauthorization Amendments Section 6217 programs, and other tools to manage NPS pollution. Low Impact Development Literature review and fact sheets that discuss technologies that use the natural http://www.epa.gov/owow/nps/lid/ landscape of a development site to detain, absorb and treat surface runoff. National Pollutant Discharge Elimination Guidance on developing a Phase II storm water program along with a list of best System (NPDES) Storm Water Program management practices to mitigate pollution from storm water runoff. http://www.epa.gov/npdes/menuofbmps Partner Websites Center for Watershed Protection The Center provides scientifically sound information and techniques to protect www.cwp.org and restore watersheds. It also conducts training seminars and workshops for planners, engineers, landscape architects and municipal officials across the country. Local Government Environmental LGEAN provides environmental management, planning, and federal and state Assistance Network (LGEAN) regulatory information for local government officials, managers and staff. This site also http://www.lgean.org links to a free Long-Term Hydrologic Impact Assessment Model (L-Thia). Nonpoint Education for Municipal (NEMO) NEMO is an educational program for local land use officials that addresses the officials http://nemo.uconn.edu relationship between land use and natural resource protection. Smart Growth Network A growing coalition of developers, planners, government officials, lending http://www.smartgrowth.org institutions, community groups, architects and other stakeholders. The website contains a large library of documents on “smart growth” and offers many other links. In Print Protecting Water Resources With Smart Growth. US EPA, Development, Community and Environment Division. 2004. 116 pages. EPA-231-R-04-002. (To obtain copies of these EPA publications, call (513) 891-6561 or visit www.epa.gov/smartgrowth/publications.htm) Our Built and Natural Environments: A Technical Review of the Interactions between Land Use, Transportation, and Environmental Quality. US EPA, Development, Community and Environment Division. 2001. 93 pages. EPA 231-R-01-002. Potential Roles for Clean Water State Revolving Fund Programs in Smart Growth Initiatives. US EPA, Development, Community and Environment Division. 13 pages. 2000. EPA 832-R-00-010. Getting to Smart Growth: 100 Policies for Implementation. Smart Growth Network and International City/County Management Organiza- tion. January 2002. Visit smartgrowth.org for ordering information. Smart Growth for CleanWater: Helping Communities Address the Water Quality Impacts of Sprawl. June 2003. Call (202) 638-6254 to request a copy or visit www.nalgep.org/publications to download a copy. Smart Growth Strategies: Protecting Water Resources. Local Government Roles and Options for the Rocky Mountains and Northern Great Plains. December 2001. Call NACo at (202)393-6226 or visit www.naco.org. Visit the GIS land use and water decision support tools page. Coastal Sprawl: The Effects of Urban Design on Aquatic Ecosystems in the United States. Pew Oceans Commission. April 2002. Only available on the internet at www.pewtrusts.org/pdf/env_pew_oceans_sprawl.pdf EPA842-F-02-008 Office of Water September 2005 Resources & Tools Images courtesy of Hopewell Twp., NJ and Dodson Associates, Ashfield, MA Current Build-Out Conventional Build-Out Villiage Build-Out