prepared for: prepared by: masonville dmcf: integrating dredged material management with...

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

2Masonville 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

3Compensatory 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

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Environmental Restoration

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

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c on c er n e d c i t i z en s f o r a

B E T T E R B R O O K L Y N

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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

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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

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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

9Proposed Areas of Remedial Action

10Proposed Improvements

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Community Enhancements

• Education Center and programming: National Aquarium Living Classrooms BayBrook

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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

13Shoreline Stabilization

14Public Access Piers

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Happy Ending

Kaitlin McCormickScientist/Project Manager225 Schilling Circle, Suite 400Hunt Valley, Maryland 21031410-584-7000kmccormick@eaest.comwww.eaest.com

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Jim HulbertSenior Scientistjhulbert@eaest.com

Masonville Cove Nature Area – Grand Opening for Public Water Access October 24, 2012