MS4 is short for “Municipal Separate Storm Sewer System. An MS4 is a conveyance that is
owned by a state, city, town, village, or other public entity that discharges to waters of
the U.S., designed to collect/convey storm water, not a combined sewer and not part of a
publicly owned treatment plant.
MS4's were put in place to help protect our rivers by making people
aware of their watershed.
What is a Watershed?
A Watershed is the area of land where all of the water that is under it or drains off of it goes into the same place
Watersheds come in all shapes and sizes. They cross county, state, and national boundaries.
In the continental US, there are 2,110 watersheds; including Hawaii Alaska, and Puerto Rico, there are 2,267 watersheds.
What you Can Do To Protect Your Watershed
Urban Areas
Keep litter, pet wastes, leaves and debris out of street gutters and storm drains—these
outlets drain directly to lake, streams, rivers and wetlands.
Apply lawn and garden chemicals sparingly and according to directions
Dispose of used oil, antifreeze, paints and other household chemicals properly—not in
storm sewers or drains. If your community does not already have a program for collecting household
hazardous wastes, ask your local government to establish one
Clean up spilled brake fluid, oil, grease and antifreeze. Do not hose them into the street where they can eventually reach local streams and lakes.
Control soil erosion on your property by planting ground cover and stabilizing erosion-prone areas.
Encourage local government officials to develop construction erosion and sediment control ordinances in your community.
Have your septic system inspected and pumped, at a minimum every three to five years, so that it operates properly.
Purchase household detergents and cleaners that are low in phosphorous to reduce the amount of nutrients discharged into our lakes, streams and coastal waters.
Forestry
Use proper logging and erosion control practices on your forest lands by ensuring proper construction, maintenance, and closure of logging roads and skid trails.
Report questionable logging practices to state and federal forestry and state water quality agencies.
Agriculture
Manage animal waste to minimize contamination of surface water and ground water.
Protect drinking water by using less pesticides and fertilizers.
Reduce soil erosion by using conservation practices and other applicable best management practices.
Use planned grazing systems on pasture and rangeland.
Dispose of pesticides, containers, and tank rinsate in an approved manner.
The Columbus MS4 and the Bartholomew County MS4 have committed to work together along
with the SWCD, SWMD, Purdue Extension, Health Department, and the Surveyors
Office to
promote efforts to reduce pollutants discharged into receiving waters.
Click image to see the EPA's "Solution to Pollution" Guide
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