I appreciated the article about Pierce County’s new GIS mapping utility, which shows where rainwater goes if it falls anywhere in the county. It is a cool mapping tool, allowing the user to click anywhere on the map and see a line drawn depicting the path of the water flow.
There are still a few bugs in the system though. I live on the shore of Lake Louise, a small pothole lake that drains about a square mile of surface runoff. I can attest first hand that rainwater here flows downhill and into our lake.
I clicked on the map where my house is, and watched the map application tell me that rainwater at my house actually flows uphill, over Hemlock Hill which is the highest point in the city (where Lakewood’s 2 big water towers are), then east to Lake Steilacoom and eventually onto the Sound. That would be a pretty good trick to get rainwater to do that!