Roe Jan Watershed Data

One of the largest tributaries to the Hudson River, the Roeliff Jansen Kill spans over 54 miles from its start in Massachusetts to its discharge into the Hudson River estuary at Linlithgo. The watershed, which is located mostly in Columbia County, is 212 square miles. 

The Bard Water Lab measures sewage-indicating bacteria concentrations and turbidity levels in samples from the Roeliff Jansen Kill. We also record temperature and conductivity data that the Roe Jan community volunteers collect while sampling.

Watershed Map

Billboard Imafe for Watershed Map