In April, Atlanta-based micro Sweetwater Brewing Co. presented the all-day Sweetwater Music Festival at the Johnson Hagood Stadium as part of the Charleston Craft Beer Week, and the craft brewery returns to town this summer with another big music event designed as a fundraiser for the Waterkeeper Alliance. Acclaimed Colorado bluegrass band Railroad Earth will headline a concert at the Music Farm on Fri. June 22. The group recently celebrated their 10th anniversary on the road.

The Music Farm show is one of several events during Sweetwater’s “Save the Cooper” campaign this summer. The Cooper River is regularly polluted by runoff and industrial and municipal wastewater discharges. The company has conducted similar campaigns in Atlanta and around the Southeast over the last four years. “A lot of folks don’t realize it, but local waterways account for a main ingredient in our beers, while also serving as a fresh water source for the community,” said Sweetwater founder Freddy Bensch. “Keeping our water clean is a cause I think we can all believe in, and we’ll continue to do anything we can to help raise awareness and make these efforts possible.”

Proceeds from Sweetwater’s Waterkeeper HefeWeizen (a specialty wheat ale) will specifically benefit the Charleston Waterkeeper efforts to protect the Cooper River. Campaign kickoff parties will be held at the Griffon on Fri. June 1 at 6 p.m. and Moe’s Downtown Tavern on Tues. June 5 at 6 p.m.