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Why is my water not colorless?

Why is my water not colorless?
Try this: fill a clear drinking glass with tap water, and hold it up against a white sheet of paper. What color do you see? Water can sometimes hav...

Why is my water brown?

Why is my water brown?
If you’ve ever turned on your faucets at home and been surprised with a glass of brown water, you’re not alone. Sometimes you don’t get the clear, ...

Why does my water taste like metal?

Why does my water taste like metal?
We have all heard that drinking at least eight glasses of water a day is an important part of good health. But, have you ever wondered how healthy ...

Holiday Hours

Holiday Hours
National Testing Laboratories would like to wish you a safe and happy holiday season. We will be closed on Friday, December 25, 2020 and Friday, J...

COVID-19 Update

COVID-19 Update
The employees of National Testing Laboratories (NTL) extend to each of you our thoughts for continued good health and safety as the Coronavirus (COVID-19) crisis continues. Our Laboratory’s ability to provide valuable water testing services remains uninterrupted.