There were quite a few here: in the third photo there are at least three water snakes visible and one garter as a bonus.
AOR. Basking on road at stream culvert. Clear, 14 C.
Seems to be a young brown snake
Baby; about the width of my pinky finger and ~8 in. long. Found on gravel path between wetland areas.
Crawling down a tree trunk in Markham, Ontario. Never seen one of these!