Wetlands serve as a filter to clean runoff water before it enters a stream. If this timing is not feasible, consider using fencing to exclude grazing from the wetlands portions of your pastures. Protect wetlands, rivers and estuaries through careful animal waste management. Chemicals Pay very close attention to product directions when you apply fertilizer or herbicides. If herbicides and insecticides get into streams, they can kill aquatic insects which are food for fish.
Fertilizer runoff can cause unwanted plant growth in streams which can then rob the water of oxygen.
Anything that goes into the storm drain can end up in our waterways Dispose of chemicals such as used motor oil, antifreeze, pesticides, paints etc. at approved collection facilities in your local area. Waste Keep fill, manure and garbage out of wetlands. These areas function as filters only when not clogged with contaminants and debris. Water from these areas moves into streams or into groundwater. You could even contaminate your own water supply.