LOXAHATCHEE, Fla. -- Tensions rose Tuesday night in Loxahatchee when more than 800 residents of the Acreage community gathered to discuss the state's most recent findings.

The Florida Department of Health announced earlier in the day it would conduct more testing to try to determine the cause of a possible "cancer cluster" in that area.

The announcement was hardly a consolation for most at the meeting.

"Is our water safe to drink? Can we shower? Can we brush our teeth?" one frustrated resident shouted.

"Please answer our question!" another yelled.

"We are sorry. We are sorry for your losses. We are sorry for the loss of your children. For the loss of the property value," said Shari Turner with the Florida Department of Health.

An apology from the state wasn't enough for the audience. Nor for the Dunsfords, whose 7-year-old son, Garrett, has a brain tumor.

"It's really a lack of communication," Jennifer Dunsford told Local 10's Janine Stanwood.

State officials conducted radon tests inside 11 homes, which turned out to have normal, low levels.

Officials also tested wells over the summer and concluded that the water in them is safe.

State epidemiologist John O'Malley explained that low levels of radiation are everywhere and normal. But residents sitting inside the auditorium still demanded answers.

For them, those results do not change the state's most recent findings: in the Acreage, there are higher than normal instances of brain and central nervous system cancers among children. The state concedes they have to do more digging.

"We're going to continue to fight and hopefully the residents of this area will band together and really make their voices heard," Dunsford said.