get a good water filter/cleaning system for the house. and cook the fish reeeaaallyy good. how 'bout that! i never seen any patients come in complaining of "my septic was put too close to my pond and it leaked and drained into the lake, and now i am contaminated and think i'm dying." hypothetical...yes.. does it happen? never seen it, probably never will.. just get it as good as you can for a reasonable cost and i don't think it will be that big of a deal. my pond is smack dab against my septic field, even the gray water drains into my pond. i don't sweat it. i'll die of heart dz or stress before i'll die of a situation related to my septic too close to my pond. mark