I have a place where a pretty good amount of water comes out, during the wet season, 5-8ft from the top of a steep hillside. It has already caused a slump/mudflow and now is actually somewhat exposed. The cliff left behind is going to need to be retained as it is right up against a road I use frequently (but not now!).
So my questions:
Can someone highlight some good info on building a spring box into a hillside? I have been looking around but there are always experts that know where to find the good stuff...
I have enough flat for a base so I was thinking to build a retaining wall along the cliff and incorporate a spring box where the water is coming out. I will also feed the drainiage from the wall into the same piping. This will be to dry the hillside primarily (reduce erosion while I can get some native veg back in place) and I also hope to store/use some of the flow along the way. Is this dumb?
I used this approach to develop a natural spring for my use.
The key points are to isolate the spring water and its source from any potentially icky water coming from the surface.
Think worst case scenario: something pooping right above your spring followed by a heavy rain to wash it over your spring collection apparatus.
Also make sure you don't dig down to below the ground level of your spring in close proximity (5-10'?) or you risk opening up an easier route for the water to escape, bypassing your spring altogether.