Minnesota Well Index (MWI)
The Minnesota Well Index (MWI) provides basic information about wells and borings, such as location, depth, geology, construction, and static water level.
DISCLAIMER: The State of Minnesota and the Minnesota Department of Health (MDH) makes no representations or warranties expressed or implied, with respect to the maps or data provided herewith regardless of its format or the means of its transmission. There is no guarantee or representation to the user as to the accuracy, currency, suitability, or reliability of this data for any purpose. The user accepts the data “as-is.” The State of Minnesota assumes no responsibility for loss or damage incurred as a result of any user reliance on this data.
MDH and partners have made every effort to ensure the accuracy of the information provided, but it is possible some details or records are absent. Missing information does not guarantee there is not a well on a property.
MWI text-based search
If you are using assisted technology or prefer searching without a map, use:
MWI map-based search
To search using the map, use:
Tips, record requests, and support
- Recommended Web browsers for this application are:
Google Chrome (45 or higher)
Mozilla Firefox (38 or higher)
- This application is designed for tablets, laptops, and personal computer screens. A resolution of 1280 by 1024 or higher is recommended for optimal display.
- Information from unverified wells should be used with caution and should not be used for site-specific evaluations. Locations for unverified wells were derived from the descriptive location reported on the well construction record and their accuracy has not been confirmed.
- The MWI application may load slowly depending on your internet speed. MWI does not support the use of "Back" or "Forward" commands. Instead, use the navigation within the application. Click ‘Help’ to see frequently asked questions about the MWI application.
- IMPORTANT: Record requests are served in the order they are received. Due to high demand, your request may take up to 5-7 business days. Well record requests sent to the MWI technical support email will not be served.
- Record requests sent to personal emails of MDH staff may take longer than the options listed below. Your email requests will be answered or forwarded to the appropriate MDH staff. Do not send requests to multiple emails.
- If you are unable to find Well and Boring Construction Records and/or Well and Boring Sealing Records in MWI, please contact MDH Well Management Section at firstname.lastname@example.org. Please note that the majority of well sealing records are not available in MWI. MDH began licensing well contractors and requiring submittal of well records in 1974. As a result, majority of wells constructed prior to 1974 will not be on file at MDH.
- If you are looking for previously filed Well Disclosure Certificates or clarification on well disclosure requirements at property transfer, please contact MDH Well Management Section at email@example.com.
- Due to federal security requirements, wells supplying public water systems are not displayed in MWI. If you need access to information about public water systems, please contact the Drinking Water Protection Program at firstname.lastname@example.org or 651-201-4700.
Please contact the Well Management Section at 651-201-4600 or 800-383-9808, or email@example.com for the following:
- MWI application is not working.
- MWI is missing records.
- How to use MWI or download data.
- To report an incorrect well location or address.