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Water Quality |
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Total Maximum Daily Loads (TMDLs) Program |
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Implementation Guidelines and ToolsTMDL implementation involves actions to be taken across agricultural, forest, urban, and rural residential land uses to reduce pollutants and improve water quality. This web site is intended to provide information to help Designated Management Agencies implement TMDLs for nonpoint source pollution. Most links provide information applicable to any nonpoint source TMDL. Contact the appropriate basin coordinator for further information regarding TDMLs. Getting Started - Guidance for Plan Development and Implementation One of the first steps for improving water quality after a TMDL is completed is to develop a TMDL Implementation Plan. DEQ has named certain federal, state, and local governments and agencies, including cities, counties, and special districts as DMAs because these agencies and governments have authority to manage and regulate sources of pollutants that are listed in the TMDL. The following are various documents that can assist in the development of an Implementation Plan. Several documents are working drafts that will be updated over time based on feedback from DMAs.
[top] Example TMDL Implementation Plans CitiesSmall communitiesCounties
[top] Pollution Control Tools and Programs There are a variety of management measures that can be used in developing Implementation Plans. The following are state or national sources of information which may be helpful in identifying actions to take. They are organized by nonpoint source or pollutant type. Nonpoint pollution
BacteriaSources of bacteria include discharges of untreated or poorly treated sewage resulting from malfunctions or overflows, and runoff that carries feces from pets or wildlife.
MercuryMercury is a potent neurotoxin that can cause damage to the brain and nervous system. Primary sources of mercury in the Willamette Basin are associated with nonpoint sources, namely the erosion of soils containing mercury and runoff from atmospherically-deposited mercury.
NutrientsThe primary sources of nutrients are fertilizers (nitrogen) and soil erosion (phosphorous).
Riparian management (Temperature)In both urban and rural areas, increased solar radiation can result from removal of riparian (streamside) vegetation which reduces the amount of shade over the water and increases stream temperature. Riparian Monitoring and Restoration
Riparian Model Ordinances
RoadsFrequent sources of sediment are construction sites and roads. Roads and Construction
StormwaterStormwater management is meant to reduce many pollutants from point sources and nonpoint sources.
Land use planning
[top] This is a short list of funding sources. More information about each of these sources is available on the Boise State University Plan2Fund link below. Environmental Protection Agency grants
Boise State University
Oregon Department of Environmental Quality
Oregon Watershed Enhancement BoardU.S. Department of Agricultural Natural Resources Conservation Services
Forestry Incentives ProgramOregon Department of Fish and WildlifeU.S. Fish and Wildlife - Oregon State OfficeDepartment of Land Conservation and Development GrantsNational Fish and Wildlife Foundation[top] The links below provide information about TMDL implementation issues identified in the Willamette Basin TMDL.
Fact sheets on TMDL implementation in the WillametteSouthern Willamette Valley Groundwater Management AreaImplementing the TMDL requires consideration of groundwater management because of the close link between groundwater and surface water, especially regarding bacteria and nutrients.
Willamette Basin Contact Information[top] |
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For more information about DEQ's Total Maximum Daily Loads (TMDLs) Progam contact Gene Foster by phone at (503) 229-5325 or by e-mail, or contact the appropriate Basin Coordinator.
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