BREWER, Maine — Volunteers will be out along the Penobscot River on Saturday morning during the eighth annual stream cleanup, an effort that has removed tons of garbage and debris from the banks of the state’s largest waterway over the last few years.

Volunteers are asked to meet at 8 a.m. at Brewer Auditorium. After a short safety presentation, the group will be dispatched to locations on the shoreline and around the city to pick up trash until noon. At noon, the group will reassemble at the auditorium for a free picnic lunch and volunteer recognition ceremony.

“At our picnic we talk about some of the things that were found,” Ken Locke, the city’s environmental services director, has said.

In years past, volunteers have collected kitchen appliances, mattresses, discarded guardrails and a lot of styrofoam coffee cups and fast-food containers, he said.

The city’s Stormwater Public Education and Participation Committee is host for the eighth annual cleanup, which over the years has collected “over 25 tons of trash and debris along the Penobscot River, its tributaries and other sensitive areas in Brewer,” Locke said.