That box looks to be at least a foot down. IMO, there's a world of difference between a light covering of bark (or gravel) ... and placing it that far down.
I suspect that the low voltage guys will no longer consider this buried box acceptable after the first service call.
Ironically, despite the gasketing, I find that dirt and water still manage to get in those boxes. The use of an "N-9" handhole would have been a better solution.
(An "N-9" is a fiberglass tubular handhole, with a mid and open bottom. Overall size is about the same as a 5 gallon bucket).
[This message has been edited by renosteinke (edited 01-12-2007).]