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.
You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.- Delaware 2014 Section 303(d) List Approval Letter and Decision Rationale (PDF)(10 pp, 4 MB, October 14, 2015)
- Delaware 2016 Section 303(d) List Approval and Decision Rationale (PDF)(8 pp, 443 K, October 17, 2017)
- District of Columbia 2014 Section 303(d) List Approval Letter and Decision Rationale (PDF)(10 pp, 2 MB, January 21, 2015)
- Maryland 2014 Section 303(d) List Approval Letter and Decision Rationale (PDF)(16 pp, 8 MB, October 16, 2015)
- Pennsylvania 2014 Section 303(d) List Approval Letter and Decision Rationale (PDF)(12 pp, 6 MB, December 19, 2014)
- Virginia 2012 Section 303(d) List Partial Approval Letter and Decision Rationale (PDF)(12 pp, 14 MB, December 12, 2013)
- Virginia 2014 Section 303(d) List Approval and Decision Rationale (PDF)(17 pp, 5 MB, May 19, 2016)
- DC 2016 303(d) List Approval Letter and Decision Rationale (PDF)(8 pp, 73 K, February 2, 2017)
- Pennsylvania 2016 Section 303(d) List Approval Letter and Decision Rationale (PDF)(10 pp, 79 K, January 9, 2018)
- Virginia 2016 Section 303(d) List Approval Letter and Decision Rationale (PDF)(11 pp, 113 K, March 6, 2018)