I'm in a similar oasis, ain't it grand?
it could be aquaponics. you could set up a table plastic on top, or gutters, like a continuous flow or flood and drain for funs, herbs love this.
I was able to support marijuana plant growth but not to my expectations without supplementing with feed. that brought me to the point where I was was not confident of the items being added being totally cool with my pond. I raise thousands of fish commercially in that pond and its almost self sufficient, I didnt want to upset anything. any use of any oils or sprays are generally not safe for my pond water, or my plants. some hydro with that water unfiltered was out, dtw was cool but again needed supplementation
to meet my expectations.(with mj,tomatoes, peppers... however all herbs were awesome)
So I moved on to using the water for irrigation and grew in organically fertilized pro mix. Seasonal changes/ice/pump/storage etc posed some challenges, pond water pests did too, mostly to beneficial orgs strangely.
I ended with leaving my fish alone and watering my organically fed promix with the pure well water pump inside of my grow room.
I dont regret one minute of the experience but it was to work intensive for me even then.
have fun!