Storm Water Management Plan
The Federal Clean Water Act – In March 2003, Phase II of the National Pollution Discharge Elimination System (NPDES) went into effect. This Act requires all communities with a population over 10,000 to receive a Municipal Separate Storm Sewer System Permit (MS4) permit. To be in compliance with this permit, the City must develop a program dedicated to 6 areas of water quality management referred to as minimum control measures (MCMs).
Minimum Control Measure #1: PUBLIC EDUCATION
Before learning how you can make a difference it is important to understand some key elements regarding water pollution.
Stormwater – Stormwater is the result of precipitation such as rain or snow.
Runoff – Runoff is stormwater minus what infiltrates into the ground.
Storm Sewers – Underground structures that take stormwater run-off from streets, gutters, and ditches to nearby lakes and streams, untreated. These are the drains you see at the street corners or at low points on the side of your streets.
Watersheds – A watershed is an area of land that drains to a common body of water, such a nearby creek, stream, river or lake. Everyone lives in a watershed.
Stormwater runoff is the biggest problem facing our streams, creeks and rivers today. As stormwater travels over the land and paved areas, it picks up chemicals and sediments that are not naturally found in our waterways. Common pollutants include:
• Automotive fluids
• Lawn and garden clippings
• Pet waste
• Household chemicals
Homeowner Tips for Improving Water Quality
Homeowners can play a key role in cleaning up our polluted waterways through behavior changes. The majority of pollution in Marshall’s urban waterways can be linked to our everyday activities. Common pollutants include:
Improper disposal of paint, used oil, household chemicals and yard waste
Over-application of fertilizers and pesticides
Washing cars in driveways
Not picking up pet waste
Not maintaining septic tanks
Minimum Control Measure #2: PUBLIC INVOLVEMENT
Now that you understand a little bit of the problem, how do you get involved?
Clean up your own property
Storm drain stenceling
Host an informational meeting
Notify the city if you see illegal dumping or problems at construction sites
Minimum Control Measure #3: ILLICIT DISCHARGE DETECTION AND ELIMINATION
Illicit discharges are things entering the storm sewer system that are not entirely made up of stormwater. This may be a one time dumping of oil, paint, chemicals, yard waste, trash, etc or this may be an ongoing problem where a structure is connected to the storm sewer instead of the sanitary sewer.
Illicit discharges will be investigated as they are found and this is where you can help. If you see water in your creek that is discolored (usually brown or green), has an excessive oil/grease sheen or substantial suds, or a foul odor – please contact the City. Staff can then investigate the source of the problem and take steps to eliminate it. City staff will also be doing some routine screening and/or monitoring in areas of town where large storm sewers discharge.
Minimum Control Measure #4: CONSTRUCTION SITE RUNOFF CONTROL
Contractors in the City of Marshall need to be aware of the requirement for state land disturbance permits on sites that disturb more than one acre (43,560 square feet). The City will also soon be enforcing the same requirements for pollution prevention that the state requires. This includes erosion and sediment control, concrete washout, fueling areas, materials storage, and sanitary waste.
Minimum Control Measure #5: POST-CONSTRUCTION RUNOFF CONTROL
The City will be implementing new development standards to improve the long-term water quality of our community. This may include control of open space, stream buffers, parking requirements, encouragement of infiltration and filtration practices, and consideration of detention and retention requirements.
Minimum Control Measure #6: GOOD HOUSEKEEPING IN MUNICIPAL PRACTICES
The City will continue many practices that currently help improve water quality including our extensive street sweeping program, our conscientious parks management, and our inspections of our sanitary sewer system. The City will also be training employees of a variety of best management practices so that they might carry out their jobs in the most environmentally responsible manner possible.
Marshall has two waterways that manage our community runoff: Salt Fork Creek and the North Fork of Finney Creek. The runoff in our community eventually drains into the Missouri River, the 15th longest river in the United States. The Missouri River watershed drains one-sixth of the water in United States.