We have an old septic leaching field on the south side of our new house. The house has been hooked up to municipal sewers and the leaching field has been decommissioned.
Most information I have found on line advises against growing vegetables over a leaching field for various reasons ( all of them reasonable and common sense) however I cannot find information or recommendations for planting over a decommissioned leach field?
I understand the leaching tile , in our area of the country, is generally 2 to 3 feet below the surface to protect from freezing. Do we need to worry about contamination if the field is no longer in use? If not, can we plant on surface or would it be better to build raised beds to better accommodate root vegetables?
Any advise and or guidance would be greatly appreciated!
New Home Owner