The Bottle Bay station has been monitored every year since 2012. This long and narrow bay is surrounded with houses, and is home to a quaint marina with a restaurant and rental cabins.

This area is served by Bottle Bay Recreational Water and Sewer District, which collects wastewater from the area septic systems and eventually applies it to the land nearby. While there is not a direct discharge to the lake, monitoring here would let us know if there were ever a problem such as sewage pipe breakage or over-allocation to the land, which could lead to polluted runoff.