The reservoir is at the edge of a city park. That park has an area where people can let their dogs run off-leash. It would not surprise me to find that some idiot tossed a pile of dog-doo over the fence to show his disdain for rules in general.
The city is busily building new underground tanks in various locations around the area. This should give some impetus to that effort.
There is another facet to this whole mess: The City screwed up their accounting system several years ago and water rates went sub-orbital. Now there’s a ballot measure before the voters to form some sort of a water “district” and take the City completely out of the water business. The City is fighting it, of course but an incident such as this might help one side or the other in the battle of empty words.
Ballot Measure 26-156 was soundly defeated last Tuesday.