Ross Reid wrote:
-snip-

Lots of good info he
http://www.ext.vt.edu/pubs/envirohor...7/426-617.html


Thanks-- Good stuff, indeed. Worth repeating from that page;

"Soils vary a great deal in their ability to filter viruses and
bacteria."

"If at all possible, use your septic drain field for ornamentals and
plant your vegetables elsewhere. "

"Do not plant root crops over drain lines. Leafy vegetables could be
contaminated by rain splashing soil onto the plant,. . ."

"Do not construct raised beds over the field; they might inhibit
evaporation of moisture. "

I would also point out that the reason for a leech field is to get
liquids to evaporate. Most gardeners try to minimize evaporation, so
your goals are a bit at odds from the start.

Jim