No. Even if a product is biodegradable, it could still be toxic to aquatic life. Many biodegradable products aren't designed to break down in water the same way they do in soil. Whatever enters a storm drain in Bothell flows, untreated, to the nearest stream, lake, or river.
Here's a good rule of thumb: If you wouldn't want to swim in it or let your pet drink it, make sure it doesn't go down your storm drain.
Remember...nothing but rain down the drain!