Chester County Water Resources Authority

What We Do 
We provide:
  • flood protection, 
  • reservoir water supplies, and
  • water science, information and planning, 
  • to support safe, healthy and prosperous communities that sustain the quality, quantity and biodiversity of the County's water resources.

    Today's Water Levels

    Upcoming Events

    July 22, 2016 from 9 AM to NOON
    FEMA Floodplain Ordinance Workshop
    Location: West Chester University's Sykes Student Union
    Park in K Lot on Norfolk Avenue (GPS users: 110 Norfolk Avenue, West Chester)

    All Chester County municipalities are required to update their floodplain ordinances prior to the new FEMA maps becoming effective summer of 2017. This Workshop will provide municipalities with details on the ordinance review and approval process and the required ordinance updates. There will be an open forum to ask questions. A flyer, map and preliminary Agenda can be viewed here.

    For more information about the FEMA process, read below under "What's New" and our updated fact sheet

    July 25 or 26, 2016 from 8 AM to 5 PM
    PA DEP MS4 Permit Workshop: Preparing for your Next Application or NOI
    Location: Harrisburg
    Pre-registration required. Very limited seating. Cost $50, including lunch. For more information, click here. In August and September, additional PA DEP workshops on TMDL and Pollutant Reduction Plan development will be scheduled.

    What's New

    • Interactive Online Water Resources Mapping Tools Available
      • The Online Water Maps Gallery provides “self-serve” maps of Chester County’s streams and lakes, watersheds, protected water uses, impairments/pollutants (2014), FEMA floodplains, soils, Urbanized Areas (2000 and 2010), etc. Both PDF maps and interactive map tools are provided, as are links for available GIS data files.
    • New Preliminary FEMA Floodplain Mapping Available 
      • Preliminary issuance of FEMA updated floodplain mapping (portions of Chester County) and updated map products (all of Chester County) was released December 2015.
      • June 1, 2016, after two notices in the local paper were published, the formal 90-day comment period began. All comments for the updated floodplain mapping must be submitted in writing during this period. To determine if your municipality has any draft revised floodplains and should therefore consider submitting comments, please consult the Municipal Index (9/11/15).
      • An interactive online FEMA Map is available that depicts the draft updated flood zones and the changes since the last effective Flood Insurance Rate Map (FIRM). You can also download maps from the FEMA websiteOnly some flood zones in Chester County were revised. Consult the Municipal Index (link above).
      • FEMA anticipates that the mapping will become effective June 2017. All municipalities in the NFIP program must revise their floodplain ordinance, submit for PA DCED approval, adopt it, and then submit for FEMA approval  - all steps must completed PRIOR to when the maps become effective. Contact Dani-Ella Betz at 610-344-5400 or with any questions.
      • Chester County property owners should consult the interactive online FEMA map to understand the how the mapping of the FEMA floodplains may change.
      • Please consult the fact sheet for more information and the tentative timeline.
    • The final PA DEP MS4 Permit was published on June 4, 2016 and will become effective March 16, 2018. Click here for more information.
    • Chester County Master Watershed Stewards - First Graduating Class!
      • This brand new program is a project of the Penn State Chester County Master Watershed Stewards and the Chester County Conservation District and serves to provide local volunteers with extensive once-a-week training. Upon completion, apprentices are required to volunteer 50 hours in the community. If you have a volunteer opportunity that you would like to promote, please contact Liz Alakszay: with the subject line "Master Watershed Volunteer Opportunity". 
    • Today’s Water Levels for Chester County
      • A visual snapshot of current precipitation, groundwater and streamflow conditions for Chester County is presented through a set of color graphs and maps, with links to additional online webpages for more detailed information.
    • Volunteer Opportunity: Participate in the Volunteer Rainfall Observer Network
      • Volunteers are responsible for taking readings of a rain gage daily and after significant precipitation events, manually recording the readings, and submitting the log on a monthly basis by email or postal mail. CCWRA compiles the data for analysis, and the updated results are posted on the CCWRA website. The volunteer is committed to recording - on a daily basis - accurate measurements, and able to consistently participate for years. If you would like to learn more, please contact us at 610-344-5400.

    Right-To-Know Information

    Click here for the Chester County Water Resources Authority's Right-To-Know information. This is solely for requests to the Chester County Water Resources Authority. Any requests intended for the County of Chester must follow the procedures posted on the County Of Chester's Open Records Law web page (click here).