Septic tank discharging into a ditch or drain. About the Author: Warren Chandler. About Mantair. However, there are still thousands of septic tanks discharging directly to ditches, streams, and rivers throughout parts of the U.K. Have you been quoted… Areas We Cover. If the septic tank drains into a drainage field this has to be a certain distance away from a water course, so we would suggest you contact your local waste drainage expert to discuss this. The short answer to the above question is no. Share This Story, Choose Your Platform! Drainage Ditches for the discharge of Sewage Treatment Plant Effluent What Is A Drainage Ditch? Home; Septic tank discharging into a ditch or drain ; Cause: This is normally found on dwelling sites 25+ years old, but it is not uncommon to come across modern dwellings with sewage systems discharging to a watercourse. This is often due to these septic tanks being installed when there were less stringent regulations in effect surrounding the usage of septic tank systems. facebook twitter linkedin reddit whatsapp tumblr pinterest vk Email. A drainage ditch is a narrow channel dug at the side of a road or field, to carry away water. Septic tanks cannot discharge to surface water drains, rivers, canals, ditches, streams or any other type of waterway. Are you worried about all the new rules and regulations that come into effect on the 1st Jan 2020? By Warren Chandler | 2020-04-24T02:12:59+01:00 April 24th, 2020 | Comments Off on septic-tank-discharge-into-ditch. The water drains from the land or the road into the ditch, often via land drainage pipes that are 2 to 3 feet below ground in the field. Does your septic tank discharge into a ditch? Does your septic tank discharge into a ditch? Are you worries about all the rules and regulations coming into force on the 1st Jan 2020? Can a Septic Tank Discharge into a Ditch?