A package system is disclosed for dispensing controlled amounts of a chemical agent. The package system includes an outer package that is generally gas and liquid impermeable. The outer package contains an inner package made from a degradable material, such as a material that is water degradable. The inner package contains a measured amount of a chemical agent. The chemical agent may be difficult to handle and may have corrosive properties, may be an oxidizer, or the like. The package system facilitates dispensing the chemical agent into a particular environment. In one embodiment, the package system is designed to hold a chemical agent for treating recreational water sources, such as swimming pools.