November 17, 2008
A Tour of the Water Purification Facility
The floor of the lobby of the Walter J. Sullivan Water Purification Facility is a map of the water distribution system of Cambridge, created by artist Mags Harries. The lines on the map show the routes of underground water pipes. The medallion shown here is one of about a dozen that are embedded in the floor. Identical medallions can be found in locations around the city, and finding them can be the goal of a city-wide "treasure" hunt.