Industrial mineral site no. 1489, known as "B. J. Lake" is a site in Okanogan County, Washington. This site has been associated with sodium sulfate. A notation found in DGER Bulletin 37 on page 96 says "Area of 19 acres. Contains about 23,000 tons of total salts, most of which is sodium sulfate, in crystalline form and in the brine", and designates the value as "Warrants investigation".