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) (3.85 MB, October 14, 2015)
• Delaware 2016 Section 303(d) List Approval and Decision Rationale (pdf) (432.65 KB, October 17, 2017)
• District of Columbia 2014 Section 303(d) List Approval Letter and Decision Rationale (pdf) (2.3 MB, January 21, 2015)
• Maryland 2014 Section 303(d) List Approval Letter and Decision Rationale (pdf) (7.2 MB, October 16, 2015)
• Pennsylvania 2014 Section 303(d) List Approval Letter and Decision Rationale (pdf) (5.64 MB, December 19, 2014)
• Virginia 2012 Section 303(d) List Partial Approval Letter and Decision Rationale (pdf) (13.67 MB, December 12, 2013)
• Virginia 2014 Section 303(d) List Approval and Decision Rationale (pdf) (5 MB, May 19, 2016)
• DC 2016 303(d) List Approval Letter and Decision Rationale (pdf) (71.09 KB, February 2, 2017)
• Pennsylvania 2016 Section 303(d) List Approval Letter and Decision Rationale (pdf) (77.48 KB, January 9, 2018)
• Virginia 2016 Section 303(d) List Approval Letter and Decision Rationale (pdf) (110.27 KB, March 6, 2018)