7 Crazy Storm Water Pollution Facts (You Need To Know)

Have you ever wanted to learn more about storm water pollution?

Do you want to educate yourself so you can fight back against this serious problem?

Are you looking for more information to better understand if this is a concern where you live?

If you’ve ever wanted to find out more about this type of pollution, you’re in the right place. Below, we have a collection of important facts for you to remember when you’re educating yourself on the matter of water pollution.

There are a lot of potential factors that can lead to this kind of pollution, but some are a lot more prevalent than others. Here are the top three causes of storm water pollution:

  • Agriculture. Agriculture causes more water pollution than any other factor across the board, including storm water pollution. Storm water runs off from farms and takes contaminants with it until it reaches water sources and bodies of water.
  • Roads. Runoff from roads contributes to the chemical pollution of storm water as it reaches groundwater sources.
  • Cleaning supplies. People who dump or wash cleaning supplies into their yards are adding to the problem of groundwater pollution every time they do this.

These are just a few causes behind this type of pollution, so be sure you read through the information below to better understand the other facts you need to know about this very serious problem.

Storm Water Pollution Facts

Here are several facts about storm water pollution that you need to know to better understand just how serious this problem is. Read through this information and you’ll be able to find out whether or not there’s anything you can do to positively impact this situation, too.

stormwater pollution definition

1. Storm water contains pollutants such as sediment, chemicals, bacteria, viruses, minerals, heavy metals, and physical trash. 

Basically, storm water is rain that runs over surfaces and picks up anything it passes over in the process. Unfortunately, this means it’s likely to pick up just about any type of contaminant that may be present, and so it’s a very polluted type of water. It continues flowing into groundwater and surface water sources and takes those contaminants with it, and so it causes the spread of pollution on a larger scale over time.

stormwater runoff management

2. The areas that are most prone to storm water pollution include residential communities. 

These communities are more likely to use a lot of chemical cleaners in and around the home, and they also wash these items down the drain or dump them into their yards. Residential communities also pollute the water supply with medication they wash down the drain too. These areas are responsible for some of the heaviest concentrations of groundwater and storm water pollution both because of this practice. Alway dispose of your medications and chemicals properly and never dump them down the drain or pour them out in the yard.

3. There are different types of storm water pollution, including point and nonpoint. 

Point sources are the main places where this type of pollution comes from, including farms and factories. Nonpoint sources are those that come from a lot of different problems at once. For example, if there’s a heavily polluted local stream, that stream is a nonpoint source of water pollution. The factories, mines, construction sites, and residential communities that contribute to that stream’s pollution are all individual point sources. There is a hierarchy of storm water pollution.

how to prevent stormwater pollution

4. Storm water affects humans, animals, and the environment in different ways. 

Storm water that pollutes groundwater sources slowly takes contaminants into the environment and kills off entire habitats. This water also eventually makes its way to the sources of water we humans use for drinking purposes. Storm water that runs into and pollutes surface water sources can cause animals, fish, and plant life to die off quickly because of the exposure to new contaminants in the water supply.

5. There are several factors that aggravate storm water pollution, including residential chemical use, agriculture, and factories, among others. 

It is important to target each of these problem areas individually to help cut back on the overall contribution to the problem of storm water pollution. Each risk factor has its own challenges when trying to make a difference for the better. If you’re planning to get started with activism, target one area at a time for better results.

stormwater runoff control

6. Landscaping may make a big difference in helping to prevent storm water runoff. 

Runoff can be halted or stopped entirely by making wise landscaping decisions. This is why it’s important to plant trees on the shorelines of surface water sources, or to use heavy shrubbery to keep runoff from making its way past the boundaries of farms and factories. These are all small changes, but they can make a big difference in preventing surface water and groundwater both from becoming too polluted by storm water.

7. Storm water pollution is the number one cause of overall water pollution. 

Storm water directly affects other types of water, so it is responsible for contaminating most water sources. This is why it’s very important to pay attention to the problem of storm water pollution. We can clean up all the streams and lakes we want, but in the end, if the storm water is still carrying contaminants to these water supplies, we are never going to make any real progress.


Do you feel like you’ve learned something about storm water pollution? Is this a new concept to you? Has this always been a problem? Is it getting worse over time, or is there any improvement? Many times, people have never heard of this particular type of pollution, but that doesn’t mean it isn’t real. It’s been around for a long time, but it’s only getting worse the more we rely on chemicals for so many aspects of our day to day lives.

storm drain pollution prevention

Roads, neighborhoods, driveways, farms, and factories are just some of the many factors that contribute to this type of pollution across the country. By cutting back on the types and amounts of chemicals we use every day, we can do a lot to prevent storm water pollution from getting even worse.

Thankfully, now that we on the whole have started paying more attention to this problem, we are starting to make some changes for the better. Although it isn’t widespread yet, some locations are taking measures against chemical usage, dumping, and pesticide use, among other risk factors.

The more we focus on cleaning up our chemicals properly and safely, the better we will be able to protect our storm water. And when our storm water is clean, our groundwater and our drinking water supplies will get cleaner, too. We can all benefit from that!