Northwestern Aquatic Sciences (NAS) has been providing environmental testing services since 1979.   We specialize in  aquatic toxicology, and can assist clients directly with their toxicity testing requirements or team with other specialized consultants in multidisciplinary projects. Senior staff members are directly involved in project management, resulting in a very high quality product for our clients. We provide scientifically sound data and concise reports so our clients can meet their testing requirements in a cost-effective, efficient manner.

NAS is certified by the State of Washington for performance of more than 30 bioassay test methods. Our Scope of Accreditation is available upon request.