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Watertown Water Reports and Guides

Watertown Water Quality Background

The City of Watertown provides drinking water to its residents from a groundwater source: three wells ranging from 153 to 475 feet deep, that draw water from the Quaternary Buried Artesian and Franconia-Ironton-Galesville aquifers.

Watertown’s water hardness ranges from 25-27 grains which is almost 6x harder than the national average. The high level of total dissolved solids (TDS) and organic matter may affect taste.

The EPA has established two standards for additional contaminants in tap water:
MCL: Maximum Contaminant Level – The maximum allowable level of a certain contaminant
MCLG: Maximum Contaminant Level GOAL – The level where studies have found ZERO HEALTH RISKS, aka the “Health Limit”

Watertown Annual Drinking Water Quality Reports

2009 Watertown Water Report

This information was compiled from Watertown’s water treatment reports, the Environmental Protection Agency(EPA), Minnesota Department of Health(DOH), World Health Organization(WHO), and Environmental Working Group(EWG).

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