Across Wisconsin, not only do impervious surfaces contribute to questions of water quality but pervious surfaces do as well. For example, land used for agricultural purposes contributes greatly to the level of water quality. Land use plays a very important and influential role in the type and level of pollutants that appear in Wisconsin’s waterways. Agriculture is a factor in the nonpoint source pollution discussion and should not be overlooked or underestimated.
Nonpoint source pollution (taken from EPA’s Polluted brochure EPA-841-F-94-005, 1994), “comes from many diffuse sources. NPS pollution is caused by rainfall or snowmelt moving over and through the ground. As the runoff moves, it picks up and carries away natural and human-made pollutants, finally depositing them into lakes, rivers, wetlands, coastal waters, and even our underground sources of drinking water.
These pollutants include:
- Excess fertilizers, herbicides,
and insecticides from agricultural lands and residential areas;
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At the local level farmers could look to implement a few of the following voluntary practices:
Nonpoint source pollution rules, specifically agricultural nonpoint pollution, should be addressed at the state level and implemented at a local level. Management of such rules is not an easy task requiring a great deal of background information and resources. For detailed information, statistics and questions contact your County Land Conservation Department, the Natural Resource Conservation Service (NRCS), or the Wisconsin DNR and Department Agriculture Trade and Consumer Protection.
Source for text in oval:
Streets and Roads | Buffers | Detention and Infiltration Basins | Street Trees
Erosion Control & Land Clearing | Illicit Discharges | Impact Fees | Ag. Nonpoint Source Pollution
Subdivision Design | Open-Space Design | Overlay Districts | Stormwater Control
This page was created on March