Chester County, Pennsylvania
County of Chester
313 West Market Street
West Chester, PA 19380

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Chester County Water Resources Authority
601 Westtown Road, Suite 260
P.O. Box 2747
West Chester, PA 19380-0990
Phone: 610-344-5400
Fax: 610-344-5401

What's New
  • Interactive Online Water Resources Mapping Tools Available  NEW
    • CCWRA created 3 online map products to assist residents, municipalities, businesses, and visitors by providing a "self-serve" way to view maps of the water resources of Chester County. These maps are interactive and do not require special software or plugins. The user can search by address the location of floodplains, nearby streams and determine if they are polluted/impaired, as well as other features.

  • Chester County 2014 Impaired Waters Map Series (Impairments as of 2014 PADEP Report)
    • The 2014 Pennsylvania Integrated Water Quality Monitoring and Assessment Report lists the most recent stream impairments in Pennsylvania. CCWRA updated the Chester County Impaired Waters Map Series showing the latest stream impairments in Chester County from this report.
    • Of the 2,348 miles of streams in Chester County, PADEP routinely assesses 1,394 stream miles using an assessment methodology approved by the U.S. EPA to determine if a stream is meeting water quality standards. In the 2014 report, PADEP listed 770 miles of streams in Chester County as impaired, which means they do not meet water quality standards and are considered "polluted". 

  • Volunteer Opportunity: Participate in the Volunteer Rainfall Observer Network
    • We are seeking volunteers to participate in the Chester County 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 e-mail or postal mail.  CCWRA compiles the data for analysis, and the updated results are posted on the CCWRA website.  A 3-inch diameter plastic rain gage is provided at no cost to the volunteers.  The volunteer is responsible for mounting the rain gage to a post or other suitable location at their home.  An ideal volunteer is committed to recording --- on a daily basis --- consistent and accurate measurements, and willing to participate as a volunteer for years.  If you are interested in finding out more about the Network or to become a volunteer, please contact the CCWRA at 610-344-5400.

  • Stormwater Management for Small Projects: What a Homeowner Needs to Know

  • County-Wide Act 167 Stormwater Management Plan 
    • The County-wide Act 167 Plan was approved (as submitted) by PADEP on July 2, 2013. ALL Chester County municipalities have now updated and adopted ordinances (or the equivalent requirements included in the Plan) to improve stormwater management throughout their municipality.

  • MapShed Model for the Christina Basin
    • CCWRA, with support from Dr. Barry Evans, has developed a watershed model using MapShed to support the Christina Basin TMDL Implementation Partnership efforts. For more information, please see our Christina Basin TMDL Implementation page.

  • EPA Initiatives:
    • EPA Healthy Watersheds - Provides information on tools to identify and protect healthy watersheds and their components.
    • EPA SepticSmart - Tools and resources to help homeowners manage their septic systems.

  • Popular Publications:

Our Mission

The mission of the Chester County Water Resources Authority is to provide flood protection, reservoir water supplies, and water science, information and planning to the citizens of Chester County so that they may live in safe, healthy and prosperous communities that sustain the natural quality, quantity and biodiversity of the County's water resources.

County-wide Hydro Conditions Report

Click on the "water drop" to access the latest reports on county-wide water conditions for Chester County or select from the following list:

Upcoming Events

March 28, 2015 
Red Clay Valley Association: Annual Red Clay Valley Cleanup

Location: Ashland Nature Center, Anson B. Nixon Park and Kennett Area Community Pool

April 12, 2015  
Valley Forge Trout Unlimited Valley Creek Clean-Up

Location: Valley Creek Park (Route 29 and Valley Creek), East Whiteland Township. Contact organization.

April 18, 2015  
White Clay Creek Preserve Cleanup
Location: Preserve Office Lot, 400 Sharpless Rd, Landenberg, PA.

Guardians of the Brandywine and Brandywine Conservancy: Tree Planting
Location: Wyebrook Farm, Honey Brook, PA

Brandywine Conservancy: 22nd Annual Brandywine Creek Clean-up
Location: Contact organization

April 25, 2015  
Natural Lands Trust: TreeVitalize Planting Party
Location: ChesLen Preserve, Coatesville, PA

Green Valleys Watershed Association: Annual French Creek Clean-up

Location: Phoenixville (See Clean-up Flyer)

Chester-Ridley-Crum Watersheds Association: Annual Streams Clean-up
Location: West Chester and West Goshen Township, plus many other locations

Brandywine Valley Association: Annual Brandywine Creek Cleanup
Location: Contact organization

May 2, 2015  
Octoraro Watershed Association: East Branch Octoraro Creek at Scroggy Road Clean-up
Location: 148 Worths Bridge Road, Oxford. Contact organization.

Right To Know Information

The Chester County Water Resources Authority's Right-to-Know Officer is Janet Bowers. For a copy of our Right-to-Know policy or to submit a request click on the links below for more information.

Chester County