I saw this from a half-block away - brownish water coming out of the Anderson Park fountain! (the pix look a bit greenish, but trust me - it was brownish)
There was a city maintenance truck and some workers there. They said that someone dumped a load of dirt in the pool and that they regularly find disgusting, dirty things put there by thoughtless people.
The height of the water kept varying - dunno why. The flag looks like it's at half-staff for the dead water.
There are some really stupid people around here.