I've got a 6 year old septic system that the previous owners had installed when I bought my house. The drain field is set up in a zig/zag pattern and is a "vault" system.

Over the last couple of years I have reclaimed the pasture where the drain field ends, but I have had a constant problem with water at the upright termination pipe. I just had the tank pumped a couple of weeks ago and I figured the ground would dry out- after a couple of days of rain, it's back to being waterlogged/soggy with water on the surface.

My house sits at the base of a hill with all kinds of wet weather springs around me.

I don't think that our water use is excessive and I am confident that I don't have leaking fixtures.

Should I:
A) See about getting my existing system lengthened?
2) See about some type of a curtain drain?
C) Seek other options? Possihly a mound of dirt at the termination?

What about costs for the likely solutions?

Thanks for your time!

Mike