Epic / Mayo Data Center
4710 West Circle Drive NW · Rochester, Olmsted County, MN
Source: OpenStreetMap
Epic / Mayo Data Center is a mapped data center in Olmsted County, MN. DataCentersExposed has documented a 48,317 sq ft footprint at this site.
Reporting by Eric Keller · Updated Jun 14, 2026
Most sites are mapped — located but awaiting a second source. How we verify
Dot size = disclosed capacity (MW). Smallest = undisclosed, not small.
Overview
source: linkdata center
The grid behind this site, right now
source: MISO · gridstatus- Wind21.6%
- Natural Gas21.4%
- Coal20.5%
- Solar18.4%
- Nuclear14.1%
- Imports2.2%
- Other1.8%
Real-time generation mix for the MISO grid this site draws from, as of Jun 16, 2026, 4:35 PM. ISO-wide, not this facility's own metering. Source: gridstatus.
In the news
source: Google News- Governor Hochul on data center moratorium legislation – RochesterFirstRochesterFirst· Jun 9, 2026
- Carrier Connect Data Solutions Signs Definitive Agreement to Acquire Rochester Data Center Assets from Rochester Colo LLCTMX Newsfile· Jun 9, 2026
- Couple says they regret selling family land for data center projectRochesterFirst· Jun 7, 2026
- Judge halts construction of Pine Island’s hyperscale data centerMPR News· May 27, 2026
- Court halts construction on Google data center in southeast MinnesotaStar Tribune· May 26, 2026
- Letter: Data center is a model — a bad onePost Bulletin· May 23, 2026
Tax breaks & subsidies
source: Good Jobs First / GASB 77No per-deal tax break is linked to this site yet. No state discloses the recipient of a data-center abatement at the facility level, so per-site deals are rare in the public record. If you have a development agreement or board resolution for this site, send it to us.
Minnesota reported $68.7M in Qualified Data Center Equipment sales/use tax exemption (Minn. Stat. § 297A.68 subd. 42) — evaluation actuals for FY2024 (Minnesota Legislative Budget Office (LBO) / University of Georgia evaluators). Program-wide, not attributable to this site.
Water use
No public record of this facility's water use. We check state withdrawal reporting for self-supplied sites; municipally supplied sites only become visible through a public-records request to the local water utility — a per-facility request tool is coming. If you have a utility document for this site, send it to us.
EPA permits & violations
source: EPA ECHONo reported violations as of last sync.
Environmental permits
source: Permit register- Clean Air Act permitted sourceMN0000002703700411NAICS 518210; ECHO compliance status: No Violation Identified
Air quality near this site
source: AirNowAir Quality Index from the nearest AirNow reporting area (Rochester Area), as of 2026-06-10. Regional context — not this facility's own emissions.
Who lives nearby
source: Census ACS 2023Demographics of the census tract this facility sits in (American Community Survey 5-year estimates). Environmental-justice context for who bears the local impacts.
Nearest school
source: HIFLD / NCESThe nearest public school, Rochester Beacon Academy in Rochester, is 1.1 mi from this site (85 students).
Schools are sensitive receptors for the noise, backup-generator exhaust, and traffic a large data center brings. Straight-line distance to the nearest public school (HIFLD/NCES, US public schools only).
Hearings timeline
No public-hearing records linked to this site yet. We surface planning-commission and board-of-supervisors dates when a record names a facility. If you know of a hearing on this site, tell us.