Sterling Spring Water Company

A few years ago I was at an estate sale where there were many fondleable, weird items from the middle part of the last century. One thing that caught my attention was an old bottle labeled

"Bottled at the Source

1053 N. 115th Street Wauwatosa

Sterling Spring Water Company"

I had never heard of this, and wrote the label information in my notebook (what the hell am I going to do with an old bottle, cool as it may be? I have enough crap [although, if anyone is sufficiently intrigued, this site has one for sale for $10. As of this writing, it's item #S-417]). Do any of you have any further information on it?

The company does not seem to still be in existence, but here is a map of that address.

There is at least one spring still in use in Milwaukee, the Bay View Iron Well, which I used to drink from copiously. It always seemed ancient and pure and mysterious, even though everyone knows about it. If anyone knows about this Sterling Spring Water Company, though, please post a comment about it.

Here is a photo of that area now, where 115th street crosses over Underwood Creek, courtesy of Google Street View. It is interesting to note that the watershed divides just west of there, at approximately 124th street. Is there still a spring there? Is it safe to drink from?