Contaminant levels for water at both aquifers were found to be below the acceptable level, according to federal drinking water standards.
This has been the case for Northfield, dating back to at least the 1970s, according to city Utilities Manager Justin Wagner.
The state of Minnesota, as a whole, generally boasts safe drinking water, according to reports from the state’s Department of Health.
Minnesota currently has 6,887 public water supply systems.
Of those systems, 961 are community systems which provide water to people in their homes or places of residence.
The department notes 80 percent of Minnesotans are supplied water through community systems.
There are three basic strategies used to keep drinking water in the state safe: prevention, treatment and monitoring.
In all cases, the Department of Health worked with system providers to fix the problems and reduce any potential contamination.
For example, the maximum level of radium allowable in drinking water, according to Department of Health standards, is 5.4 picocuries per liter.
Estimated typical usage included 20-40 gallons per shower (5 gallons per minute), 6 gallons per toilet flush, 6 gallons per brushing of teeth, 3-5 gallons per shaving, 20 gallons per dish washing, and 5-10 gallons per outdoor watering.