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State Water Plan

The State Water Plan provides the planning tools and guidance in assisting existing and future water resource demands and needs within the Commonwealth and coordinates related plans and policies with local, state, and federal agencies.  Under the State Water Plan program, the Department manages the Commonwealth’s Water Use Data System and is responsible for administration of water use registrations and reporting. 

New Update of the State Water Plan Underway

Building on a rich history of planning from the 1970’s into the 2000’s, the Department of Environmental Protection (DEP) Office of Water Resources Planning is working under Act 220 (Act of December 16, 2002, P.L. 1776, No 220) to do a review of an update to the State Water Plan completed in 2009.  This current update will include development of recommendations for revision to both the statewide and regional components.  

The primary goals of the new update include:

  • A reviewed and updated State Water Plan having the input, guidance and advice from a repopulated and reinstated Statewide Committee, six Regional Committees and the public.
  • Approved and adopted Critical Area Resource Plans (CARPs) within the Potomac and the Ohio planning areas that were left unfinished during the Plan update of 2009.
  • Enhanced web-based applications and tools to deliver improved access to water resources information, data and statistics for educational, and water planning purposes.
  • Plan provisions to implement applicable water resources related strategies outlined in the 2018 Pennsylvania Climate Action Plan.
  • Update the 2009 State Water Plan Atlas using a web-based GIS application.

Draft 2022 Pennsylvania State Water Plan

Draft 2022 Pennsylvania State Water Plan - The Statewide Water Resources Committee for the 2022 update of the State Water Plan is hosting a public comment period for the Draft 2022 Pennsylvania State Water Plan. The Draft contains the findings of the State Water Plan committees for this update of the State Water Plan, including recommendations for action, legislative priorities, and regional components for each of the six water planning regions identified in Act 220 of 2002. The Committee is seeking input on the Draft Report’s contents. Interested persons may submit written comments on this Draft Report through Monday, September 19, 2022.

DEP welcomes comments on the draft 2022 State Water Plan. Comments can be made online through the DEP eComment system, may be emailed to, or can be mailed to the DEP Policy Office, Rachel Carson State Office Building, P.O. Box 2063 Harrisburg, PA 17105. All comments must include the commenter’s name and address.

The deadline for comments is September 19, 2022, at 11:59 PM.

NOTE: The State Water Plan 2022 Update Draft Report continues to be reviewed by the Statewide Water Resources Committee (Committee). In the process of finalizing the report following the close of the public comment period, any additional revisions to the draft report recommended by the Committee will be considered, along with any revisions in response to public comments.

Additionally, in the process of finalizing the State Water Plan 2022 Update Draft Report, the report will be updated to reflect recently enacted legislation relevant to the State Water Plan 2022 Update, such as Act 54 of 2022, which amended the Commonwealth’s Fiscal Code to authorize the Agriculture Conservation Assistance Program (ACAP) and reauthorized funding for grants and reimbursements to municipalities and counties for watershed stormwater planning under the Commonwealth’s Storm Water Management Act (Act 167 of 1978).

State Water Plan Kickoff Presentation

Water Data

DEP has been collecting water use data from users on an annual basis. Search and explore Pennsylvania’s water use data through new applications that make it easy to find the water information you are looking for by accessing Water Reports.

Population Projections

Population data is an important component for estimating water supply demands. Access the links below to view DEP’s current population projection report.