Redmond Rain . . . can treat sewage?
Disposing of the waste we flush has always been a problem.
FTF: DM&K Cachers and CurrentlyAdventuring
Sewage Lagoon
In the 1970s that problem was solved by collecting wastewater and treating it within large sewage lagoons. A lagoon uses biological, chemical, and physical processes to treat and dispose of wastewater. Aerobic decomposition, requiring oxygen, occurs near the water surface. Aerobic microorganisms convert waste into carbon dioxide, ammonia, and phosphates, which algae use as a food source. Solids are loaded onto trucks and carried away to landfills. Clarified liquids are discharged back into the environment, in this case into the Sammamish River.
The old sewage lagoons were decommissioned years ago, in favor of pumping the waste north to the Brightwater Wastewater Treatment Plant in Woodinville before it is pumped out to Puget Sound. This site was cleaned up and the ponds were re-graded to make them more suitable as habitat. Today, you will typically see turtles sunning themselves on logs across the way or waterfowl hanging out. You may also see rowers parking in the lot or walking down the road to the river and the Sammamish Rowing Association boat house. This is much more inviting than I imagine it was in 1970.
Multicache
If you visit the posted coordinates, you will note a large pond to the north and a smaller pond to the south. You will also note a bench that was placed on the shore of the larger pond.
Clues:
- The year the bench was installed: ABCD.
- E = # of boards that form the back of the bench
- F=B-C
- G=A+E
The container is located here: N 47° 39.EGF' W 122° 7.FFD'