At Cal Waters state-of-the-art laboratory in San Jose, California, its the little things that count. Cal Waters chemists and microbiologists conduct more than 300,000 separate water quality tests every year, looking for organic and inorganic compounds in the water in quantities as small as parts per trillion—thats like looking for bad pennies in three football stadiums filled to the rim with coins.Our scientists examine water samples that are carefully shipped to the lab from sampling stations throughout Cal Waters systems to ensure that your water meets or surpasses strict state and federal water quality standards. Because protecting our customers health and safety is our highest priority, Cal Water staffs its lab with some of the best scientists in the water industry. The entire laboratory operation is fully certified by the California Environmental Laboratory Accreditation Program—one of the toughest certifications to achieve in the country.You might not have thought much about Cal Waters water quality laboratory, but the scientists in the lab have thought about your water. Every drop of it.