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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 

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Last Modified:
June 10, 2021 - 12:47pm

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