Haven't added any WW fluid for 6+ months, so can't be the overflow...
Just noticed a small puddle under the rear of the right front wheel well.
Thought it was an odd place for water from the AC, so checked and it's washer fluid...
Called my Indie in Indy, and they said this is not that uncommon with BMWs in general, and it's a pretty simple fix, after you get in there to it. Usually a grommet or maybe a hose that has a slight leak.
Will update after I get the service done next week.