National Testing Labs

Analyte Reference Guide

For various contaminant information, check out our "Analyte Reference Guide" which provides you with detailed information about contaminants that could be in your water.

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The National Testing Laboratories, Ltd. network of certified laboratories performs drinking water analysis for customers worldwide according to USEPA and standard methods. We test for compliance and informational purposes and hold certifications across the U.S. Our laboratories successfully participate in USEPA Proficiency Testing Programs. We offer test packages to meet federal, state, FDA and International Bottled Water Association requirements. Members of our technical staff are contributing members of various IBWA and WQA committees. We maintain memberships in the WQA, AWWA, IBWA, CBWA, NEBWA, SEBWA, TBWA, NSDA, ASHI, FRWA, FWQA, GLWQA, NEHA, American Chemical Society, National Groundwater Association, and National Rural Water Association.

For more information about our network of laboratories, click on Contact Us.