Leviathan Environmental Services, LLC 713 Tonstad Place, Pleasant Hill, CA 94523

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.

Equipped with Gravity RIC6500 Vibracore, SDI 24V Vibecore, and other sampling tools, Leviathan is dedicated to completing marine and aquatic field projects from start to finish. By combining Mr. LaMothe's expertise with well-maintained equipment and client assets, Leviathan Environmental Services, LLC ensures successful outcomes for all research endeavors.