The following GIS data sets are provided for use in planning for water quality improvements.

County of Chester, Pennsylvania makes no claims as to the completeness, accuracy or content of any data contained hereon, and makes no representation of any kind, including, but not limited to, the warranties of merchantability or fitness for a particular use, nor are any such warranties to be implied or inferred, with respect to the information or data furnished herein.

Please contact CCWRA at 610-344-5400 if you have any questions.

Title	Originator	Date Posted	Data Description	Download Data
2000 Urbanized Area	U.S. Census Bureau via ESRI	8/6/15	3 page .pdf
2010 Urbanized Area	U.S. Census Bureau	8/6/15	3 page .pdf
2016 Integrated List for Chester County (Impaired Streams and Lakes)	PA Department of Environmental Protection	8/6/15	4 page .pdf
2014 Integrated List for Chester County (Impaired Streams)	PA Department of Environmental Protection	8/6/15	4 page .pdf
Christina River Basin TMDL: HSPF Subbasins	U.S. Geological Survey	8/6/15	3 page .pdf
Christina River Basin TMDL: Nutrient Impairments for 1996 or 1998	U.S. Environmental Protection Agency	8/6/15	2 page .pdf
Christina River Basin TMDL: Sediment Impairments for 1996 or 1998	U.S. Environmental Protection Agency	8/6/15	2 page .pdf