Bryant RedHawk wrote:To safely grow over a leach field you should have a large quantity of active bacteria in the septic tank and field lines and then lots of fungi hyphae in the soil above and around the field lines to take care of any stray pathogenic bacteria that could make it out into the soil.
Listeria is one of the worst things that will happen to any vegetable crop grown over leach lines that are not well insulated by both bacteria and fungi.
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