To ask the Scottish Executive how many licensed hazardous waste disposal sites there are. Landfill site operatorsare required to obtain a suitable permit for their site from the Scottish EnvironmentProtection Agency.At present the onlyhazardous waste landfill permitted by the agency is the Avondale Quarry site nearPolmont.Under Community andScots law it is also permissible to landfill suitable stable, non-reactive hazardouswaste in a separate cell at a non-hazardous landfill.