The River Instream Flow Stewards program helps people to collect and use streamflow data in Massachusetts. RIFLS, as it is known, began in 2002 in response to concerns that many small streams were flow-stressed and that these impacts were not being documented. RIFLS staff work with partners to collect high quality streamflow data, to better understand the causes of unnatural streamflows, and to inform and support policy and actions that restore and maintain environmental flows.