herenorthere,
I admit that I'm very afraid.
It's probably fine, but if not, it has taken a long time to find some of the plants in my collection and do not want to have to start again. There are a lot of farms in the area and concerned about fertilizer in the water. I guess it can not be too bad, I have seen people filling up gallon jugs there before.
I think I may drive to the spring and ask some of the local people on help getting in touch with the correct people. It is maintained by the Lions Club in Seven valleys. I tried googling to see if I could not find a phone number to contact them for a breakdown of the water, but no luck.
I do know of another spring, that is a lot further away that CP's do grow in the area so I would trust it more. Plus no farming anywhere close. I have never taken my TDS to the site, I'll have to do it this year.
JLP,
I bought mine off ebay.