Water companies have a responsibility to protect the environment.
The work of a water company will have an impact on the environment. Laying pipelines or building a new water or sewage treatment works can cause disruption for a short time. However the benefits are long term - for example, sewage treatment schemes improve the quality of waste water returned to the environment. When a reservoir is built, some habitats are lost because of flooding. But, with careful planning, new habitats are created and reservoir provide many opportunities for leisure .