Near · Pennsylvania · Lancaster County
4 data centers proposed or permitted within 25 miles of Mountville Borough, PA
1 permitted · 0 under review · 3 announced — from the public permit record, not press releases. Distances are straight-line from the center of Mountville Borough.
The sites, nearest first
216 Greenfield Road (Chirisa Technology Parks)
2 issued of 2 permits on record.
A document states: 176 diesel-fired emergency generators @ 3,250 kW (Rolls-Royce 4P9.1-2700 / MTU 20V 4000 G94S); Phase 1 = 72; Phases 2-3 = 104; SCR + cDPF generators (permit figure) · 572 MW (calculated) · 83 (potential emissions, all 176 engines) tons NOx/yr (permit figure) · fuel: diesel.
Londonderry Data Center
7 expected of 7 permits on record.
No figure verified from a document yet.
Highlands East Data Center (Corscale)
5 expected of 5 permits on record.
No figure verified from a document yet.
Highlands West Data Center (Corscale)
6 expected of 6 permits on record.
No figure verified from a document yet.
Nearby places
- West Hempfield Township, PA — 2.2 mi away · 4 sites
- Washington Boro, PA — 3.0 mi away · 4 sites
- Columbia Borough, PA — 3.3 mi away · 4 sites
- Salunga, PA — 3.6 mi away · 4 sites
- Landisville, PA — 3.7 mi away · 4 sites
- East Hempfield Township, PA — 4.0 mi away · 4 sites
Who decides, and what people are saying
Every place compiled so far: who decides, by place. What people in Pennsylvania are saying about data centers: Data Center Pulse.
What you can do
Open a project on the map. If a comment period is open, the record shows the deadline under Permit. The Pennsylvania Bulletin notice linked as the primary document names the DEP regional office (Southeast, Northeast, Southcentral, Northcentral, Southwest, or Northwest) and the contact to send written comments to; comments must arrive within the 30-day window. You can ask DEP for a public hearing in the same comment. This site is independent and is not affiliated with DEP or any company named on it.
Want to know when this changes? The Filings Wire is every new or changed permit action in PA, VA and TX, with the agency document and the figures it states — a free Monday summary, or the full issue and CSV for subscribers.
"Permitted" means at least one permit of any type is issued; "under review" means an application is filed or noticed and no permit is issued yet; "announced" means the record anticipates permits but none is filed. None of this says anything is being built. Counts reflect the ledger sheet as of Sep 28, 2026; absence here means we have not identified a project from public records, not that none exists.