developing brownfields in hawaii - land recycling · 2019. 12. 21. · developing brownfields in...
TRANSCRIPT
Developing Brownfields in Hawaii
Fenix Grange Supervisor, Site Discovery, Assessment and Remediation
Role of HEER – Protecting Human Health and the Environment
1. Discover…Assess…Protect 2. Property owners are responsible for the
safety of their properties 3. HEER oversees investigation and cleanup 4. We approve safe and protective remedies
Hawaii Brownfields – Good News and Bad
! Little heavy manufacturing history ! Few properties left idle ! Most sites are relatively low risk
! Widespread soil/groundwater contamination
! Significant risks do exist
Where are Brownfields in Hawaii?
1. Historic industrial/commercial areas 2. Harbors 3. Pipeline corridors 4. Historic pesticide mixing operations
Risks occur with land use changes
Rail, TOD and Brownfields
Types of Contamination
1. Petroleum contamination 2. Metals in soils: Lead paint, fill from
demolition, old incinerators, Chinatown fire
3. Pesticides and chemicals Pre-1980 buildings
Direct Exposure
Groundwater
Prevailing Wind Direction
Leaching
Conceptual Site Model of Potential Environmental Hazards
Gross Contamination
Ecotoxicity
Stream
Stream
Discharge to aquatic habitats
Free Product
Dissolved plume
Leaching
Drinking Water
Vapor Intrusion Soil
Protecting Against Exposure
1. Children and communities 2. Current and Future building occupants 3. Construction workers 4. Our ecosystems and wildlife
Is My Property Affected?
! Find out! ! What is the history of your site? ! Public records at DOH can help ! Hire an experienced environmental consultant ! Report what you find ! Work with DOH to get No Further Action The first step to successful redevelopment is understanding conditions at your property
Resources to Help you
! City and County Areawide Assessment Grant – Phase I, Phase II and a little cleanup help
! Competitive EPA Brownfield Grants – Assessment and Cleanup funds
Eliminate or Manage Risks?
! Remove contamination…eliminate risks – Feasible…cost effective?
! Contain contamination… manage risks – Appropriate land use…acceptable risks
All brownfields are NOT created equally.
Making the Right Choice
All brownfields have a valuable reuse
! Know your site conditions ! Plan a compatible use ! Don’t paint yourself into a corner…
…wrong use for contamination present.
Do’s of Redeveloping Brownfields
! Do consider the benefits ! Do fully characterize the site ! Do contact DOH early ! Do engage environmental professionals ! Do decide to eliminate or manage risks ! Do select compatible re-use
Don’t’s of Redeveloping Brownfields
! Don’t underestimate the impact of environmental issues on your development plans