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.
NWQL Technical Links
- Methods Research and Development Program
- U.S. Geological Survey Nutrient Preservation Experiment — Experimental Design, Statistical Analysis, and Interpretation of Analytical Results
- Methods of Analysis by the U.S. Geological Survey National Water Quality Laboratory — Processing, taxonomy, and quality control of benthic macroinvertebrate samples
