Under the bill, all a data center developer would have to submit to DEP before site construction begins is a simple notice with the location of the center, information on energy source and capacity of any power generation facility, electric transmission infrastructure and local zoning clearance (if any).
An engineer must apply a seal to the information to certify (promise) that the basic information in the notice “meets or exceeds the standards required by all applicable laws and regulations to which the permit pertains.”
The developer is not required to submit any permit applications with the notice.
DEP is given three days to “confirm receipt” of the notice and issue a notice to proceed with site construction.
“After receipt of the notice to proceed, the applicant may begin site preparation, brownfield rehabilitation, demolition work, storm water installation, earthmoving and other preparatory site work, excluding building construction of the data center or associated power generation facility.”
Under phase 2 of the new process in the bill, data center developers must submit final designs and engineering plans for the center along with air quality permit applications (presumably for any power plants with the projects 60 days before construction begins.
This information again must be sealed by an engineer promising that they meet or exceed standards in applicable laws.
Within three days of receiving this information, DEP is required to “confirm receipt” of the information and must issue a notice to proceed with construction of the data center and power plant.
There is no reference to Chapter 102 (erosion and sedimentation) or Chapter 105 (floodway and encroachments) or any other permit applications that need to be completed or approved by DEP for these huge projects.
Public review is eliminated for any state permit applications before construction begins and not required for any information submitted under the bill.
DEP is authorized to inspect the data center site after the confirming receipt of the initial notice, and may issue an order to cease all work until a violation is corrected.
This accelerated permitting program would expire on December 31, 2040.
Click Here for a copy of Senate Bill 991.
The legislation was referred to the Senate Environmental Resources and Energy Committee for consideration.
Sen. Gene Yaw (R-Lycoming) serves as Majority Chair of the Senate Environmental Resources & Energy Committee and can be contacted by calling 717-787-3280 or sending email to: gyaw@pasen.gov. Sen. Carolyn Comitta (D-Chester) serves as Minority Chair and can be contacted by calling 717-787-5709 or sending email to: senatorcomitta@pasenate.com.
Permits Eliminated By Senate Bill 991
If you want an idea of what state permits and public reviews are eliminated by this legislation before construction begins on A.I. data centers and associated power plants, DEP provided a guide to need permit approvals at an August 11 Senate Republican Policy Committee hearing.
"Data center development in Pennsylvania typically requires a range of environmental authorizations from the Department of Environmental Protection to be compliant with state and federal laws and regulations.
"These may include federal Clean Water Act Chapter 102 National Pollutant Discharge Elimination System (NPDES) permits for earth disturbance activities and postconstruction stormwater management (PCSM).
"If the project involves stream crossings or wetland impacts, Chapter 105 Water Obstruction and Encroachment Permits are necessary. Pennsylvania Act 537 Sewage Facilities Planning is required to address sewage disposal needs and accommodate any proposed wastewater discharges.
"Depending on water use, developers may also need approvals or dockets from the Delaware River Basin Commission (DRBC) or Susquehanna River Basin Commission (SRBC) for water withdrawals. Discharges from sewage, wastewater, or cooling water also require NPDES permits.
"On-site non-community drinking water systems must comply with the Safe Drinking Water Act. Construction of wastewater or sewage treatment facilities may require Water Quality Management (WQM) permits, and Storage Tank site specific installation permits (SSIPs) are required for aboveground tanks.
“In terms of air quality (AQ), facilities utilizing on site power generation and backup generators will need Air Quality Plan Approvals, Title V Operating Permits, or Minor Air Quality Plan Approvals, depending on the scale.
"Lastly, data center projects often involve coordination with multiple agencies, including the U.S. Army Corps of Engineers, U.S. Fish and Wildlife Service, the Pennsylvania Fish and Boat Commission, and our County Conservation Districts.”
Under Senate Bill 991, none of these approvals would be required before construction begins on an A.I. data center and related power plants.
DEP recommended a series of steps to smooth permitting of these facilities without abandoning the need for permits or public review.
Click Here for a summary of DEP’s testimony.
Largest Construction Projects
A.I. data centers and associated power plants are some of the largest construction projects undertaken in Pennsylvania.
They can cover hundreds of acres and cost $250 million, $500 million and over $15 billion or more to build, based on proposals in Pennsylvania.
The proposed Homer City A.I. data center campus and associated 4.5 gigawatt natural gas power plant (potentially the largest in the state) will cover 3,200 acres. Read more here.
Resource Links - Data Centers:
-- Senate Hearing: Susquehanna River Basin Commission - A.I. Data Centers Have A Dramatic Demand For Water, And The Potential To Be Among The Largest Water Consumers In The Basin [8.13.25]
-- Senate Hearing: To Communities Facing Rapid A.I. Data Center Development: Review Your Zoning Ordinance NOW, Before It's Too Late To Have Meaningful Siting, Mitigation Conversations [8.12.25]
-- Senate Hearing: DEP Primer: Recurring Challenges Of A.I. Data Centers: Frequent Site Plan Changes, Inconsistent Zoning, Outdated Sewage Facilities, Limited Community Outreach [8.12.25]
-- PJM Electricity Auction: PJM Lost 2.8 Gigawatts Of Power Due To Reduced Reliability Rating Of Natural Gas Power Plants; Could Gain 12.2 Gigawatts By Increasing Reliability From Less Than 75% Now To An Achievable 90% [7.31.25]
-- PJM Electric Auction Impacts: 1 In 5 PA Households Report Problems Now Paying Energy Bills; Electric Utility Shutoffs Up 38.1% So Far This Year [7.30.25]
-- PUC: Brace For Higher Electric Bills As A Result Of Soaring Power Use; Consumers Should Review Energy Options [7.25.25]
-- Guest Essay: Rewriting The Energy Story — Together - By Stephen M. DeFrank, Chairman, Pennsylvania Public Utility Commission [7.23.25]
-- What The A.I. Data Center & Energy Summit Missed: Exploding Electricity Demand Already Raising Prices - Ratepayers Need Protection; No Longer An ‘All Of The Above’ Energy Strategy [7.22.25]
-- What The A.I. Data Center & Energy Summit Missed: It’s Deja Vu - False Promises, Dirty Power - Our People And Communities Deserve Respect [7.22.25]
Related Articles This Week:
-- PUC Chairman: Model Tariff For Connecting A.I. Data Centers To Local Electric Grid To Be Published For Comment By End Of September [PaEN]
-- Sen. Nick Miller: Senate Democratic Policy Committee Held Hearing On Data Center Impacts, Operations, Policy Considerations [Video + Testimony]
-- Southwest PA Environmental Advocates Urge Bigger Voice For Renewable Energy At A.I. Horizons Summit In Pittsburgh On Sept. 11 [PaEN]
-- Water At Risk: What Is Your Township's Plan For A.I. Data Centers? Sept. 15 Hearing In Tobyhanna Twp., Monroe County - By Carol Hillestad for Brodhead Watershed Association [PaEN]
-- Protecting Clean Water Together: Electric Bills Increased 10-20% Since June - Community Solar Could Be A Solution - By Carol Hillestad for Brodhead Watershed Association [PaEN]
-- Independent Fiscal Office Reports 2nd Quarter Increase In Natural Gas Production, New Wells And 60.8% Increase In Price Of Gas Over Last Year [PaEN]
-- Utility Dive: Rising Natural Gas Prices Expected To Drive Up Electricity Costs
-- PUC Commissioners Urge PA Congressional Delegation To Support Low-Income Energy Assistance - LIHEAP [PaEN]
NewsClips:
-- Pittsburgh Business Times: A.I. Horizons Summit Sept. 11-12 With Tech And Energy Execs, Political Heavyweights [PDF of Article]
-- Post-Gazette: Pittsburgh’s Labor Leaders Say They’re Ready For US Steel, A.I. Data Center Investments, Will The Money Come Through?
-- Scranton Times: State Lawmakers Hear Potential Impacts Of A.I. Data Centers At Scranton Hearing
-- WNEP: State Lawmakers Held Roundtable Discussion On Proposed A.I. Data Centers In Scranton
-- York Dispatch: Is A.I. Data Center Demand Too Much For A Delicate Electricity Grid In PA? York County Is A Fertile Area For Data Center Development [PDF of Article]
-- PA Capital-Star/Public Source: A.I. Data Center Growth Raises Pittsburgh-Area Hopes, But Community Benefits Aren’t Guaranteed
-- Post-Gazette: PA Lawmakers Grapple With Residents’ Concerns About A.I. Data Centers
-- WITF: PA Lawmakers Look Underground For Geothermal Alternative To Cool A.I. Data Centers
-- TribLive Guest Essay: Pittsburgh Region’s Clean Technology Future - Let’s Get To Work - By Sara Innamorato, Allegheny County Executive, Chris DCardy, The Heinz Endowments
-- Inquirer: Why This PA-Based Builder Is Shifting To A.I. Data Centers
-- The Center Square: A.I. Ethics: Bridging The Gap Between Public Concern And Global Pursuit
-- Pittsburgh Business Times: Democratic PA House Members Propose Reduction In Nuclear Reactor Fees Paid To DEP To Support Radiation Monitoring, Inspections, Oversight Based On Reactor Size [PDF of Article]
-- Utility Dive: DOE: PJM Faces Possible Long-Term ‘Energy Emergency;’ Consumer Advocates Say A ‘Concern’ Is Not An ‘Emergency’
PA Oil & Gas Industry Public Notice Dashboards:
-- PA Oil & Gas Weekly Compliance Dashboard - Aug. 30 to Sept. 5 - 2nd Township Declares Disaster Emergency; New Shale Gas Well Casing/Cement Failure; 100 Conventional Well Owners Get Violations For Abandoning Wells [PaEN]
-- PA Oil & Gas Industrial Facilities: Permit Notices, Opportunities To Comment - Sept. 6 [PaEN]
-- DEP Posted 55 Pages Of Permit-Related Notices In Sept. 6 PA Bulletin [PaEN]
Related Articles This Week:
-- Springhill Township Becomes 2nd Township To Declare Disaster Emergency After Residents Were Impacted By A Gas Related Water Contamination Event In Greene County [PaEN]
-- Petition To Extend Setbacks From Shale Gas Wells May Be Back On The Table At Environmental Quality Board Sept. 9 If Motion Succeeds [PaEN]
-- PA Senate Republicans Introduce Bill To Eliminate Need For Any State Permits, Any Public Review Of Permits Before Construction Of A.I. Data Centers, Related Power Plants [PaEN]
-- DEP Oil & Gas Advisory Board Meets Sept. 11 On New Civil Penalty Procedure; Rulemaking Petition To Process/Store Oil & Gas Wastewater From Anywhere On Every Shale Gas Well Site [PaEN]
-- EPA Invites Comments On Draft Permit Renewal For A Columbia Gas of PA Oil & Gas Wastewater Injection Well In Beaver County; Virtual Hearing Oct. 6 [If Requested] [PaEN]
-- Susquehanna River Basin Commission Meets Sept. 24 To Consider Annual Budget, Water Withdrawal Requests, Including 11 For Shale Gas Development, 2 Power Plants [PaEN]
-- DEP, Nonprofits File Consent Decree In Federal Court Requiring Beaver County Plastic Pellet Maker To Pay $2.6 Million In Penalties, Restoration Funds For Repeated Water Pollution Violations [PaEN]
-- Independent Fiscal Office Reports 2nd Quarter Increase In Natural Gas Production, New Wells And 60.8% Increase In Price Of Gas Over Last Year [PaEN]
-- PUC Chairman: Model Tariff For Connecting A.I. Data Centers To Local Electric Grid To Be Published For Comment By End Of September [PaEN]
-- In Case You Missed It -- A.I./Data Center Articles & NewClips From Last Week - September 8 [PaEN]
NewsClips:
-- Post-Gazette - Anya Litvak: Greene County Townships Declare Disaster Emergency Three Years After EQT Frack Job [PDF of Article]
-- PennLive - John Beauge: 8,000 Gallons Of Oil & Gas Wastewater Recovered From Eureka Resources Spill In Williamsport: DEP
-- Williamsport Sun: DEP Files Order Against Eureka Resources Bradford County Oil & Gas Wastewater Treatment Facility To Remove Waste [PDF of Article]
-- Middle Susquehanna RiverKeeper: Five Observations About The Eureka Resources Oil & Gas Wastewater Spill In Williamsport As We Continue To Monitor Things 10 Days After The First Report
-- TribLive: Upper Burrell Twp Sets Land Use Regulations For Oil & Gas Wastewater Injection Wells In Westmoreland
-- TribLive: Eastern Gas Transmission & Storage Eyes New Natural Gas Pipeline In Murrysville, Westmoreland County
-- Delco.Today: Hazard vs. Economy: Delaware River LNG Gas Export Terminal Back In Play [PDF]
-- Tribune-Democrat: Cambria County Transit To Complete Switch To Compressed Natural Gas In Urban Fleet In 2027
-- PennEnvironment, Three Rivers WaterKeeper Settle Plastic Pollution Lawsuit Against Styropek USA In Beaver County
-- Pittsburgh Business Times: State Announces $2.6 Million Proposed Consent Agreement Over Plastic Pollution At Closed Plant
-- Western PA Conservancy: Restoring Little Arnot Run From Severe Impacts Of Oil, Timber Industries In Warren County
-- Utility Dive: Rising Natural Gas Prices Expected To Drive Up Electricity Costs
-- Altoona Mirror: Legislative Study Identifies 382 Potential Mine Water Geothermal Sites In PA [PDF of Article]
-- WITF: PA Lawmakers Look Underground For Geothermal Alternative To Cool A.I. Data Centers
-- Marcellus Shale Coalition: Shale Insight Industry Conference To Be Held Sept. 16-18 In Erie
[Posted: September 6, 2025] PA Environment Digest

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