National Testing Laboratories Ltd.

National Testing Laboratories, Ltd. NTL performs water analysis for customers worldwide according to USEPA and Standard Methods. We test for compliance and informational purposes and hold certifications across the United States. The achievement of ISO 17025:2005 accreditation is a confirmation of our commitment to providing the highest quality services and support to all of our customers.


6571 Wilson Mills Rd
Cleveland, OH 44143
United States
Phone: 800.458.3330

Industry News + Articles

View All

Testy History

A variety of U.S. Environmental Protection Agency (EPA)-approved methods for testing total coliform and E. coli bacteria in drinking water are available. Some have been...

Testing: Assessing Lead Risks

With all of the media attention currently surrounding lead in water, people should consider whether their water is safe to drink. In the wake of the Flint, Mich., water...

Regulations: Drilling for the Facts

It has been more than 20 years since the combination of hydraulic fracturing and direction drilling was introduced in the U.S. to extract natural gas, and the process...

Testing Kit Detects Glyphosate in Drinking Water

Glyphosate is an herbicide that is regulated under the Safe Drinking Water Act. It is an ingredient in Roundup, a widely used herbicide, as well as more than 700 other...
Surface Water, Groundwater, Customer Care, testing

Solving the Water Quality Puzzle

Water treatment can be a complex problem to solve, depending on which contaminants may be present and the desired water quality. There are a variety of contaminants that...

Product Categories