Groundwater data

The MPCA monitors the quality of our groundwater and protects it from contamination.

Use the searches below to find monitoring results from the MPCA's ambient groundwater monitoring and landfill monitoring programs.

• Groundwater data: Text-based search. Find a particular groundwater monitoring station (well) by entering its identification number, or retrieve a list of stations that satisfy other search criteria. View or download monitoring data from any station. Obtain well descriptions through a link to the Minnesota Department of Health's County Well Index database.
• Groundwater data: Map-based search.  Use an interactive map to find a particular monitoring station, then view or download its data.

Recent reports on chemicals in groundwater

• The Conditions of Minnesota’s Groundwater Quality, 2013-2017 (wq-am1-10)
• Perfluorinated Chemicals in Minnesota's Ambient Groundwater, 2013 (wq-am4-02)

Reports

Date	Publication name
2019, April	Best management practices and data needs for groundwater protection (wq-gw1-08)
2013, August	The Condition of Minnesota’s Groundwater, 2007-2011: Summary
2013, August	The Condition of Minnesota’s Groundwater, 2007-2011
2012, January	Endocrine active chemicals and other contaminants of emerging concern in Minnesota’s groundwater, 2009-2010
2007, Sept.	Minnesota's Groundwater Condition - A Statewide View
2002, August	Groundwater Quality Beneath Twin Cities Metropolitan Communities Served by Individual Sewage Treatment Systems (file size=7MB)
2001, June	Effects of Land Use on Ground Water Quality, St. Cloud Area, Minnesota - Summary of Results from 1997 through 2000
2001, June	Effects of Land Use on Ground Water Quality, St. Cloud Area, Minnesota - Short Report
2001, April	Effects of liquid manure storage systems on ground water quality - Summary (2001)
2001, April	Effects of liquid manure storage systems on ground water quality (2001)
2001, March	Groundwater Monitoring in the Verdi Wellhead Protection Area - 2000 Annual Report
2000, May	Groundwater Quality in Cottage Grove, Minnesota
2000, April	Groundwater Quality Under Three Unsewered Subdivisions in Minnesota
1999, August	Baseline Groundwater Quality Information for Minnesota's Ten Surface Water Basins
1999, June	Effects of Septic Systems on Ground Water Quality in Baxter, Minnesota
1998-99	Baseline Water Quality of Minnesota's Principal Aquifers; Regional Baseline Reports (Regions 1-6):
1999, March	1) Northeast Region
1998, October	2) North Central Region
1999, March	3) Northwest Region
1998, June	4) Southwest Region
1999, March	5) Southeast Region
1999, March	6) Metro Region
1999, March	Summary of Observations and Analysis of Field Techniques for Assessing Hydrology and Water Quality of Groundwater
1998, December	Water Quality in the upper 15 feet of a Shallow Sand Aquifer in variable land use setting
1998, September	Nitrate in Minnesota Groundwater: A GWMAP Perspective
1998, March	Baseline water quality of Minnesota's principal aquifers

Fact sheets and report summaries

Date	Publication
1999, May	Baseline Water Quality of Minnesota's Principal Aquifers - Southeast Region Report Summary
1999, April	Baseline Water Quality of Minnesota's Principal Aquifers - Northeast Region Report Summary
1999, April	Baseline Water Quality of Minnesota's Principal Aquifers - North Central Region Report Summary
1999, April	Baseline Water Quality of Minnesota's Principal Aquifers - Northwest Region Report Summary
1999, April	Baseline Water Quality of Minnesota's Principal Aquifers - Southwest Region Report Summary
1999, April	Baseline Water Quality of Minnesota's Principal Aquifers - Metro Region Report Summary
1999, June	Effects of Septic Systems on Groundwater Quality - Baxter, Minnesota - Report Summary
1998, September	Nitrate in Minnesota Groundwater: A GWMAP Perspective - Report Summary
1998, June	Understanding Land Use Effects on Groundwater, St. Cloud Area Study First Year Summary - Report Summary
1998, April	Baseline Water Quality of Minnesota's Principal Aquifers — Report Summary
2001, April	Groundwater Quality Adjacent to Animal Feedlots
2001, March	Groundwater Monitoring in The Verdi Wellhead Protection Area
2000, May	Groundwater Quality in Cottage Grove, Minnesota - Fact Sheet
2000, May	Quality of Groundwater Under Three Communities Served by Individual Sewage Treatment Systems
2000, February	Vegetative Buffers for Protecting and Improving Groundwater Quality
2000	Occurrence of persistent bioaccumulative toxic substance (PBTs) in ground water
1999, June	Estimating Groundwater Sensitivity to Nitrate Contamination — Fact Sheet
1999, May	Iron in Minnesota's Groundwater
1999, May	Sulfate in Minnesota's Groundwater
1999, May	Chloride and Fluoride in Minnesota's Groundwater
1999, May	Barium, Beryllium, Calcium, Magnesium and Strontium in Minnesota's Groundwater
1999, May	Sodium and Potassium in Minnesota's Groundwater
1999, May	Cadmium, Lead and Mercury in Minnesota's Groundwater
1999, May	Copper, Chromium, Nickel and Zinc in Minnesota's Groundwater
1999, May	Phosphorus in Minnesota's Groundwater
1999, May	Selenium, Molybdenum, Vanadium and Antimony in Minnesota's Groundwater
1999, June	Effects of Feedlots on Groundwater Quality — Fact Sheet
1999, January	Volatile Organic Compounds (VOCs) in Minnesota's Groundwater
1998, August	Nitrates in Minnesota's Groundwater
1998, May	Baseline Water Quality of Minnesota's Principal Aquifers — Fact Sheet

Manuals

Date	Publication
2017, July	Data Management Protocol for MPCA’s Ambient Groundwater Monitoring Network (wq-am1-08)
2017, August	Field Guidance Manual for MPCA’s Ambient Groundwater Monitoring Network (wq-am1-09)
1999, March	Data Analysis Protocol for the Groundwater Monitoring and Assessment Program (GWMAP) - Version 1.1, February, 1998
1998, July	GWMAP Assessment Program Field Guidance Manual (Revision 3.0)

Tidbits

The following publications are data and project summaries:

Publication

PBTs in Groundwater

Herbicides in Groundwater

Septic Systems and Groundwater Quality

Nitrates in Groundwater

Groundwater Recharge and Discharge

Field Test Kits

Resources

Minnesota’s groundwater: Is our use sustainable? (Freshwater Society)

This special report on groundwater was a significant effort to inform Minnesotans about the demands on our groundwater resources and the limitations those resources face. (2013)