5th Grade at Louisa Boren STEM For the past three years, we have been a part of the rebuilding of a natural wetland in our school community. Please read below to see the research and work we have done over the past three years.
I'm Isaac and I like thicc grapes with infinity stones I'm Theo an I like soccer
"Stormwater pollution is bad" -James K.
What is Stormwater Runoff Pollution?
When rainwater makes its way to a wetland, river, lake or other body of water but flows through pollutants like car oil, fertilizer etc. this is called stormwater runoff pollution. According to KingCounty.gov “Runoff pollution is one third of Washington's main pollutions”. Runoff pollution is bad because it can affect the animals of the ocean and our drinking water. And this can affect us by drinking the water if it was not purified enough or if we ate the fish or sea animal it could contain pesticides and fertilizers that the fish breathed in, we could consume it and get sick. So were harming our selves and harming the environment as well. Even though we produce it we can still stop runoff pollution. The Delridge wetland can slow down stormwater pollution with our newer design. This is how it works. The water goes in from the inlet and through the sediment pool. Then as the water goes around the gathering space there will be plants that have high biofiltration so they could purify the water by taking the bacteria out of the water so the water would be better going out the outlet. There are some plants that can stop the runoff pollution. One of them is the pointed rush. The pointed rush has excellent biofiltration which is perfect for out wetland Here are some ways to stop it.
Stopping Stormwater Runoff Pollution
The water in the Delridge Wetland flows into Longfellow Creek, which then eventually ends up in the Puget Sound. So, helping stop stormwater runoff pollution at a small scale here will affect the purity of the Puget Sound. There are many small things you can do to help stop stormwater runoff pollution including picking up after your pet, using only natural pesticides, and not EVER putting anything but clean water down storm drains. Some people think these drains lead to water treatment centers but water and other liquid that flows into these drains ends up in the Puget Sound and other similar bodies of water. One sign that a wetland is healthy is if it has a low turbidity level. Turbidity is the measure of clarity of liquids. Murky water generally has a high turbidity because it has more floating particles in it. For ponds and wetlands 40 jtu or lower is considered safe.In March this year, the average turbidity for all of the measurements in the three inlets of water to our wetland was 53 which is generally too high. The average at the same time of the outlet was 40 which is considered safe. This is a sign that our wetland is a success . End