Public Notice
Mississippi Environmental Quality Permit Board
P. O. Box 2261 | Jackson, MS 39225
515 East Amite St. | Jackson, MS 39201
Telephone No. (601) 961-5171

Public Notice Start Date: January 21, 2026

Compass Datacenters JAN I, LLC (Compass), is proposing to locate at 1120-59 Industrial Park, in Meridian, Lauderdale County, MS. The facility will be classified as SIC Code 7374: Computer Processing and Data Preparation and Processing Services. Compass is requesting an Optional Pre-Permit Construction approval from the Mississippi Department of Environmental Quality (MDEQ) as allowed by the Mississippi Air Permit Regulations 11 Miss. Admin. Code Pt. 2, R. 2.15.B. MDEQ is publishing this public notice to provide the public with the opportunity to comment regarding the proposed project.
Compass is proposing to construct a datacenter in Meridian, Lauderdale County. Datacenters store computing machines, related hardware, servers, data storage drives, and network equipment. The facility will receive the bulk of its power from an electrical grid. Diesel-fired backup generators will be necessary to support operations in the event of emergency. Compass is proposing the construction of ten (10) buildings, each equipped with one (1) 800 kW diesel-fired emergency generator, one (1) 500 kW diesel-fired emergency generator, and forty (40) 2 MW diesel-fired emergency generators. All of the generators are equipped with diesel belly tanks for diesel fuel.
The emissions from this project will be below the Prevention of Significant Deterioration (PSD) significance levels as specified in the Mississippi Regulations for the PSD of Air Quality, 11 Miss. Admin. Code Pt. 2, Ch. 5, and more specifically in 40 CFR Part 52.21. Compass proposes to take the federally enforceable emissions limits to ensure that the facility does not exceed PSD thresholds. Compass will apply for a Title V Operating Permit (TVOP) within twelve (12) months of certifying construction of the first building.
Persons wishing to comment upon or object to the proposed request are invited to submit comments in writing to Chief, Environmental Permits Division at the Permit Board’s address shown above no later than ten (10) days from the date of publication of this notice. All comments received or postmarked by this date will be considered in the determination regarding the Pre-Permit Construction approval. After receipt of public comments and thorough consideration of all comments, the MDEQ will formulate its recommendations regarding Pre-Permit Construction approval.
Additional details about the application are available by writing or calling the Public Records Request Officer at the above Permit Board address and telephone number or by completing the form at the following website:
https://www.mdeq.ms.gov/about-mdeq/public-records-request/public-records-request-form/

This information is also available for review at the following location during normal business hours: 

Mississippi Department of Environmental Quality
Office of Pollution Control
515 East Amite St.
Jackson, MS 39201
(601) 961-5171

Please bring the foregoing to the attention of persons whom you know will be interested.