A group dedicated to protecting Canada’s freshwater is looking for citizen scientists to keep an eye on Lake Erie. The Canadian Freshwater Alliance is seeking 40 volunteers to become a Lake Erie Guardian who will test samples from the lake’s watershed. Testing will be done once a month from April to October with kits provided by Water Rangers, a non-profit group that records and analyzes water data. “Partnering with Water Rangers is new in terms of this initiative,” said Raj Gill, who oversees programs for the Great Lakes on behalf of the Alliance. “This is big growth for us.”