Guidelines for a Class Environmental Assessment for municipal sewage and water projects where either a new municipal sewage or water facility is being established, or where an existing municipal sewage or water facility requires any physical modification over and above maintenance activity or operational improvements. By using these guidelines, which cover the design and planning process and include the documentation required, the proponent of the work does not have to apply for formal approval under the Act provided the project is planned in accordance with the guidelines. A summary is given and a glossary of terms is included.