Today Jen Jackson from the City of San Pablo took our students on a mini field trip. We visited a Trash capture device which is installed in the storm drain across the street from their school. Students learned that most storm drains in the SF Bay Area have no filters at all, any materials that enter the storm drain will be swept along with stormwater into the nearest creek or channel that enters the bay. However, the storm drain that we visited includes a screen which traps any litter, but allows water to pass through. These screens must be cleaned by city staff several times per year to keep them overflowing.
A bag of cheetos seen inside the storm drain.