SeVWA’s 2015 E. coli Monitoring of Local River Sites Continued July 1st
The Southeastern Vermont Watershed Alliance (SeVWA) had its second monitoring day for the summer of 2015 on Wednesday, July 1st. As you may recall, a large thunderstorm came through our area Wednesday morning which coincided, rather unfortunately, right with our sampling time. Some volunteers were out before the storm moved through, but about half our sites were not tested due to the inclement weather. Our volunteers are a valuable asset and we never want to risk their safety to get a few water samples!
Bacteria levels tend to spike following a heavy rain event when more water falls on the ground than can be infiltrated, or soaked into, the ground and it runs off directly into rivers and streams taking everything loose on the ground with it. In the case of impermeable surfaces such as concrete, pavement, and compacted sand or gravel, no water can ever infiltrate and always becomes runoff when it rains.


