Environmental education in Pleasant Hill, California

Leviathan Environmental Services, LLC, located at 713 Tonstad Place in Pleasant Hill, California, is a marine and aquatic research support enterprise founded by Stephen LaMothe. With over 20 years of experience in marine investigations, Mr. LaMothe is a USCG licensed captain specializing in field management, sampling, research planning, vessel operations, and more. Established in 2009, Leviathan was created to provide clients with efficient and cost-effective research support, offering a variety of mobile vessels and equipment to meet project requirements. Their fleet includes a 33 ft. twin 225 4 stroke powered catamaran landing craft, a 26 ft. Tritoon Research vessel with A-frame and winch, a 22 ft. jet vessel with articulating A-frame, a 16 ft. portable pontoon sampling platform, and various smaller vessels.