Jenny Hermance, an Oakland Mills resident, said she has heard whistles blowing as early as 7 a.m. from inside her home.
Oakland Mills resident Mike Nickel said not only is the park affecting his quality of life, but he and his wife are concerned it is affecting the resale value of their home.
"We can't imagine why anyone would live next to this," he said.
While Nickel is planning to move, he said it is not solely because of the park.
But Bottamiller and Mayhew said they are not even considering a move.
"I'm not moving, I'm not going to change," Mayhew said. "It'll be a long fight."
Phase I of Blandair Park, including a playground, three artificial turf fields complete with bleachers and press boxes, a picnic shelter and restroom facility, opened on 25 acres in March.
The first phase cost the county $6.7 million, but the entire eight-phase, 300-acre Blandair Park project is expected to cost $55 million.
Phase II, scheduled to begin this spring, will include two baseball fields, a playground, picnic shelter, parking lot and tennis courts.
County Councilman Calvin Ball, who represents District 2 including Oakland Mills, said he has heard from residents on the noise issue and believes the county should consider a clearer policy on noise, including amplified sound, and appropriate hours for the park.
"That's just something we need to work on and address," he said.