ESS Laboratory is an environmental testing company that offers water quality monitoring and analytical testing services for water and wastewater management plants. It conducts organic, microbiological and inorganic tests to analyze quality of drinking water, soil and sludge. ESS Laboratory is equipped with some of the latest equipment and methodologies utilized for quality control. It conducts wet chemistry, waste characterization, volatiles, metals and bacteriology analyses tests. The laboratory also provides sampling and courier services, as well as maintains a fleet of vehicles. It works to meet the customized logistics requirement of individual and corporate clients and offers sample kits with pre-preserved sample containers, coolers and chain of custodies. ESS Laboratory is a division of Thielsch Engineering, which is a private company that is comprised of more than 300 people who provide a range of engineering, fabrication and repair services.