1. Sanitary sewage disposal sewers and facilities, including (without limitation) on-site or off-site sanitary sewer facilities consisting of an approved septic tank or septic tank systems, or any other means of sewage treatment and disposal;

2. Combined sanitary sewage disposal and storm or surface water drains and facilities;

3. Storm or surface water drains, channels and facilities;

4. Outfalls for storm drainage or sanitary sewage and works, plants, and facilities for storm drainage or sanitary sewage treatment and disposal;

5. Any combination of or part of any or all of such facilities.