Pikitup spokesman Jackey Mashapu said he could not comment on the allegations because he had not heard them before Sowetan approached them for comment.
The heaps, as in other parts of the township and areas within the City of Johannesburg, have been building up since members of the SA Municipal Workers Union (Samwu) at Pikitup embarked on a strike four weeks ago.
Sikhosana said the community had decided to take the matter into their hands."We became concerned that the strike has been going on for too long.
We are concerned about the state of the environment," Sikhosana said.
Three children were playing in a heap of rubbish last week when a gas lamp exploded, leaving them with serious burn wounds.
One was treated at the local Masakhane Community Health Centre while two were admitted to Charlotte Maxeke Johannesburg Academic Hospital.
The children's parents blame the strike, saying the incident would not have happened if workers at the City of Johannesburg's refuse collection company were not on strike.
They said people in the area had turned an open space of land into a dumping site because they have nowhere to take their refuse. The gas lamp is believed to have exploded when it came into contact with fire.
Daphne Mamokgere, the mother of four-year-old Fortune, said she was surprised to hear her child saying he had been hit by a "bomb" last Sunday."He had been out of the house for about five minutes when he came back running, saying he had been hit by a bomb.
He had burn wounds on the face, head and arm."I soon learnt that two other children were injured in the incident. They are attracted to it because they think they can find things there," Mamokgere said.
Portia Dumayi, the aunt of four-year-old Katlego, who is still in hospital, said: "They came here running and had to be taken to Charlotte Maxeke for operations."She also blamed the open space, saying had it not been for the strike, there would be no rubbish dumped there, which attracts children.
The third child is believed to have been discharged from hospital yesterday.