Watercheck NTL
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Sampling Instructions

National Testing Laboratories (NTL) has been supporting well drillers across the country for more than 25 years. Providing the highest quality independent laboratory testing for new and existing water wells.

Basic Radiological
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CityCheck Basic
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CityCheck Deluxe
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CityCheck Standard
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Complete RO Screen
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Corrosion Check
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Deluxe Radiological
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Fast Lead (Single Sample)
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First Draw & Flush Dual Lead
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Informational Glyphosate
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Quick Nitrate & Nitrite
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Standard Radiological
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Sulfate-Reducing Bacteria
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WaterCheck™ Standard
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WaterCheck™ Lite
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WaterCheck™ Deluxe
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WaterCheck™ Basic
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