If you own a private well, you are responsible for testing your own water. Some counties have water quality testing services available through local health departments and districts. We can help you find …

The only way to know for sure if your drinking water is safe is to test it. Large water systems are required to test their water often and must report out and fix the issues as soon as they are noticed.

Analysts conduct microbial, chemical and physical monitoring daily, 365 days per year, testing over 20,000 samples each year. This facility is the largest state-accredited water utility laboratory. Tests …

An important way to ensure that drinking water quality is safe for human consumption is to test the water. Testing can help to determine: 1) if a contaminant is present, and 2) if present, whether the …

Dec 19, 2025 · Information and guidance on home water testing.

Jul 1, 2024 · Test your well water at least once every year for total coliform bacteria, nitrates, total dissolved solids, and pH level. Contact your health department to find out what other germs or …

Regular water testing is recommended for all existing household water systems. For private wells, the contaminants below are recommended for routine testing because they are difficult or impossible to …

Jan 16, 2025 · Make sure your water is safe—test it. Water quality testing help ensure water is safe for people to drink. Whether you have your own well or manage a small or large water system, regular …

Jun 11, 2025 · Water quality testing encompasses a wide range of methods, each designed to detect specific types of contaminants. These methods can be broadly categorized into three main types: …

Aug 23, 2024 · Water quality testing reports and analyses of drinking water sources can be found on the Seattle Public Utilities website. All drinking water, including bottled water, may reasonably be …