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Unregulated Contaminants Report

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Drinking WaterDuring 2018, the City of Dunedin’s drinking water was sampled for a series of unregulated contaminants.  Unregulated contaminants are those that do not yet have a drinking water standard set by the Environmental Protection Agency (EPA).  The purpose of monitoring for these contaminants is to assist the EPA in determining which contaminants should have a standard. Unregulated Contaminants Monitoring Results (UCMR4) sampling requirements for Dunedin's, large ground water system consisted of Assessment Monitoring for a total of 30 chemical contaminants including: two metals, eight pesticides, one pesticide manufacturing byproduct, three alcohols, and three semivolatile organic chemicals (SVOC'S).  UCMR4 also requires Assessment Monitoring for three brominated haloacetic acid (HAA) disinfection byproducts groups, and the indicators total organic carbon (TOC) and bromide.  As our customers, we provide notification to you of the availability of these sampling results and data, for your review, should you so choose.

The sampling schedule for Dunedin was March 2018 and September 2018.  You can review the sample results by clicking on the following URL links:

Link to UCMR4 Sample Event 1 Results
Link to UCMR4 Sample Event 2 Results

Link to UCMR4 Fact Sheet

Information concerning the EPA’s Unregulated Contaminant Monitoring Program can be found at 

For additional information about drinking water in Dunedin, you can contact the Water Division at 727-298-3100 Ext. 1464 or via email at: