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Chemical Data

Below are data files for inorganic, organic, disinfection byproducts and radiological contaminants monitored under the Safe Drinking Water Act.  For a quick listing of the contaminants comprising each group, please see our drinking water standards page. Refer to data dictionary for field descriptions.

Chemical Data

Current Chemical Data

Historical Chemical Data 

Last Modified:
January 24, 2024 - 10:07am

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