QUEENSLAND'S health minister has refused to sample a bottle of groundwater from a coal seam gas (CSG) region in the state's south.

Protesters from the anti-CSG group Lock the Gate Alliance gathered outside the health department's Brisbane office and challenged people to sip the water from Tara, west of Toowoomba.

They also called for Health Minister Lawrence Springborg to try the water they have bottled and named Tara Tingler.

Residents have reported nose bleeds, chronic headaches, nausea and rashes among children and adults living in the Tara residential estate.

They believe CSG mining in the area is contaminating the air and poisoning potable groundwater.

The health department has reported a recent study could not determine whether any of the health effects reported by residents was linked to exposure to CSG activities.

Protest co-ordinator Shaun Murray says the health study was inadequate.

"This Mickey Mouse study, posing as science, is another example of the government acting in the interests of foreign-owned mining companies," Mr Murray told AAP.

He called for an independent study.

A spokesman for Mr Springborg told AAP the minister would not sample the bottled water.

He said the protesters were just pulling a media stunt and rejected their claims the report was inadequate.

"It was a robust and well presented report," he said.

He said Queensland Health continued to monitor patients in the Tara region, and residents with any CSG-related health concerns can contact 13 HEALTH.

Local Tara farmer Brian Monk says he's been able to set his bore water on fire since CSG mining began near his property.

"Yet the government claims there's no gas in my water," Mr Monk said.

Claims environment officers were pressured into approving CSG projects have inflamed the debate.

Former Queensland government bureaucrat Simone Marsh recently told ABC's Four Corners program that the state's former Labor government had approved CSG projects without sufficient information.

Originally published as Qld minister refuses to drink CSG water