1. Prepared for: Prepared by: Masonville DMCF: Integrating Dredged Material Management with Environmental Restoration and Recreation Opportunities October 2012 Jim Hulbert, Kaitlin McCormick, and Peggy Derrick

2. Masonville DMCF Background Masonville Dredged Material Containment Facility (DMCF) Components:  Maryland Port Administration (MPA) placement facility for dredged material from Baltimore Harbor  DMCF footprint is 141 ac, including 130 ac of open water 16 mcy capacity ~20 year site life Mitigation Requirements:  Offset fill of 130 ac of open water  Offset loss of 1 ac of vegetated wetland  Offset 10 ac of impacts to Chesapeake Bay Critical Area 2

3. Compensatory Mitigation Package Non-tidal and tidal wetlands creation and enhancement Reef and fish habitat improvement Eel passage installation Shad and herring restoration Trash interceptor installation Stream restoration Uplands clean-up and remediation Terrestrial habitat enhancement and diversification Conservation easement 3

4. 4 footer Environmental Restoration

5. Community Enhancements Coordinated directly with citizen groups and non-profit entities Project Components  Environmental Education Center  Education and Research Allocation  ADA Water Accessibility (fishing pier and docking pier)  Walking Trails  Outdoor Education Facilities 5

6. Upland Clean-up Uplands Contamination  Legacy Dumping – telephone poles, railroad ties, tires, concrete and rubble  Historic Fast Land – created by placing municipal waste and other contaminated debris in open water Environmental Impacts  Remnant Debris – required characterization and removal/disposal  Soil Impacts – metals (arsenic, lead, mercury, chromium), PAHs (benzo-a-pyrene) – required characterization and remedial action 6

7. Upland Debris Clean up Debris Removal  6,280 tons telephone pole and railroad ties  700 tons concrete debris  146 tons scrap metal  31 tons of tires  7,466 tons misc. debris 7

8. Upland Remediation Remedial techniques include installing soil cap to eliminate contact with impacted surface soils:  Site characterization and risk assessment to determine remedial action (30 acres require capping)  Design of cap: Typical two foot clean soil cap Tree preservations zones Shoreline stabilization Non-tidal wetlands creation 8

9. 9 Proposed Areas of Remedial Action

10. 10 Proposed Improvements

11. Community Enhancements Education Center and programming:  National Aquarium  Living Classrooms  BayBrook 11

12. 12 Nature Area Improvements Designed for ADA water access, passive recreation and educational opportunities:  Fishing pier and docking pier  3,000 feet of walking trails  Wetland creation  Stream restoration  Outdoor education areas

13. 13 Shoreline Stabilization

14. 14 Public Access Piers

15. Happy Ending Kaitlin McCormick Scientist/Project Manager 225 Schilling Circle, Suite 400 Hunt Valley, Maryland 21031 410-584-7000 kmccormick@eaest.com www.eaest.com 15 Scan this code to connect with EA Jim Hulbert Senior Scientist jhulbert@eaest.com Masonville Cove Nature Area – Grand Opening for Public Water Access October 24, 2012