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About Us

Our Vision

Monitoring and protecting our environment, specifically our water supplies, is an ongoing task that we are proud to be a part of. Clean water is one of the most valuable resources we have as we depend on it for our health and recreation. We are committed to helping monitor and protect the pristine waters of Minnesota, Wisconsin, and Michigan, and the Great Lakes for generations to come.

Our History

North Shore Analytical, Inc. was founded in 2001 by Linda Christensen and Chris Gross, in recognition of the growing need for laboratories to perform low-level mercury sampling and analysis. We have remained a leader in low level mercury analysis for over 22 years.

Using state of the art analytical equipment, North Shore Analytical has established a reputation of generating quality data with excellent customer service. We are certified for low-level mercury analysis by the Minnesota Department of Health and the Wisconsin Department of Natural Resources. We are also recognized by the Michigan Department of Environmental Quality for testing in Michigan.

In 2022, North Shore Analytical became a woman owned and women operated company and continues to provide exceptional service.

Our Team

Linda Christensen, B.S.

Chemical Engineering

Linda is the Laboratory Director. She provides analysis, field sampling, and client services for the laboratory. She has over 30 years of experience in environmental chemistry, aquatic toxicology and GLP testing.

Cory Thiesse, Bachelor of Science Degree

Lab Tech

Cory is a Laboratory Technician and provides analysis, field sampling and client services for the laboratory. Cory joined us in the summer 2022.

LuAnn Holcombe


LuAnn heads our shipping and receiving department and provides client services for the laboratory. LuAnn has been part of our team for over 8 years.

Our Certifications

Minnesota Department of Health
Laboratory #027-137-389
CWP: Mercury (1631)

Wisconsin Department of Natural Resources
Laboratory #399017190
Metals I, Mercury (1631)

Our Mission

What We Care About

Our mission is to provide analytical services to commercial, governmental, and industrial clients with integrity, reliability, and assurance.