Thunder Valley Casino in Lincoln, CA was adding on in 2009-2010. ATS was hired by Thunder Mountain Enterprises, Inc. to design a 500 GPM stormwater system to treat runoff from a 36 acre build site.

The Casino had an existing 3 million gallon storage capacity in an onsite basin. From November 2008 thru April 2008 ATS treated over 920,000 gallons of water.