Lab Result Units and Detection Limits: Reading ND, ppm, ppb, and Ranges

Thu, 28 May 2026 00:00:00 +0000

A drinking-water lab report can look official and still be easy to misread. The hard part is rarely the chemistry name alone. It is the unit, the detection limit, the comparison value, the sample location, and the quiet difference between a result that was not detected and a result that was not tested. Read the page as evidence with boundaries, not as a single verdict on the entire home.

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Clear Water Lab helps with everyday water decisions, reports, testing, certification checks, and maintenance. It is not medical advice, legal advice, or a substitute for local boil-water notices, certified lab results, utility instructions, or health department guidance.

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Lab Result Units and Detection Limits: Reading ND, ppm, ppb, and Ranges