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National Water Quality Laboratory

Sunday December 17, 2017


The NWQL has a highly trained and talented work force, and a history of quality and leadership in development of analytical methods for water, sediment, and tissue. The NWQL provides environmental analyses to meet a variety of water-quality objectives for the USGS and its customers

The NWQL produces scientifically and legally defensible data that are supported by its own approved and published USGS analytical methods, and by U.S. Environmental Protection Agency (USEPA) methods, along with three levels of chain-of-custody procedures. The high degree of proficiency required in determining substances to the microgram-per-liter level or lower and the requirement for long-term consistency for contaminant reporting are hallmarks of the NWQL. It takes an investment in instrumentation and professional staff to make the NWQL successful in meeting customer needs.

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