Region 3 Approval Documents for 303(d)/Impaired Waters Lists

This page contains approval documents outlining reviews of previous years' Section 303(d) lists and supporting documentation and information.  Region 3 reviews 303(d) list submissions for Delaware, Maryland, Pennsylvania, Virginia, West Virginia and the District of Columbia.

• Delaware 2014 Section 303(d) List Approval Letter and Decision Rationale (pdf) (October 14, 2015)
• Delaware 2016 Section 303(d) List Approval and Decision Rationale (pdf) (October 17, 2017)
• District of Columbia 2014 Section 303(d) List Approval Letter and Decision Rationale (pdf) (January 21, 2015)
• Maryland 2014 Section 303(d) List Approval Letter and Decision Rationale (pdf) (October 16, 2015)
• Pennsylvania 2014 Section 303(d) List Approval Letter and Decision Rationale (pdf) (December 19, 2014)
• Virginia 2012 Section 303(d) List Partial Approval Letter and Decision Rationale (pdf) (December 12, 2013)
• Virginia 2014 Section 303(d) List Approval and Decision Rationale (pdf) (May 19, 2016)
• DC 2016 303(d) List Approval Letter and Decision Rationale (pdf) (February 2, 2017)
• Pennsylvania 2016 Section 303(d) List Approval Letter and Decision Rationale (pdf) (January 9, 2018)
• Virginia 2016 Section 303(d) List Approval Letter and Decision Rationale (pdf) (March 6, 2018)