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Connecticut Brownfield Sites

Brownfield sites are real properties where expansion or redevelopment is complicated by hazardous substances or pollutants. In the 1990s, federal and state governments began addressing the issue of these neglected lands, often riddled with unknown liabilities that hindered community restoration efforts. Connecticut has established remediation programs to promote site cleanup and encourage redevelopment. A case study of the Brass Mill Center in Waterbury illustrates successful remediation and reuse, providing a roadmap for assessing and revitalizing other brownfield areas.

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Connecticut Brownfield Sites

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  1. Connecticut Brownfield Sites

  2. What are ‘Brownfield Sites’? • “real property, the expansion, redevelopment, or reuse of which may be complicated by the presence or potential presence of a hazardous substance, pollutant or contaminant…". – CT DEP

  3. What are ‘Brownfield Sites’? • 1990’s- Fed. And State Government decided to take action on land that was sitting unused because of the potential hazards that they contained. • Unknown liabilities were preventing communities from restoring these sites.

  4. What are ‘Brownfield Sites’? • CT- state remediation programs and standards are in place to help promote the cleanup and redevelopment of sites. • Connecticut Remediation Standard Regulations

  5. Federal Brownfields Law • Jan. 11, 2002- Federal Law expands assistance for brownfields assessment, cleanup, revitilization , and job training.

  6. Stages of Brownfield Remediation • Inventory of Sites: what’s there and how much • Assessment: Can reclamation occur? • Funding: Federal and/or Private • Amount required for each stage of redevelopment • Remedial Design and Construction • Apply appropriate technology to clean or contain pollution • 13 approved clean-up technologies just for USTs • Each site clean-up is specific to the pollutants and geology of that site • Package site for sale or development

  7. Assessment • Develop understanding of: • Type of pollutants • Horizontal & vertical extent of pollution • Impact on the environment • Are streams, lakes, rivers polluted? • Is the underground water table polluted? • Is the pollution localized or widespread? • Are plants/animals affected?

  8. Brownfields and You!

  9. Brownfields and You!

  10. Possible Contaminants

  11. Case Study: Waterbury, CT Development – Brass Mill Center Mall • The long defunct, brass manufacturing center, once comprised of more than 90 decaying buildings • Processed brass until alternate/cheaper alternatives available • 100-acre downtown site, was prepared for a rebirth.

  12. Case Study: Waterbury, CT Development – Brass Mill Center Mall • Removal of asbestos, lead paint, metals, solvents, oil, machinery, and polychlorinated biphenyls (PCB) contaminated materials. • Over 200,000 cubic yards of debris was removed or recycled • Soil vapor extraction and on-site treatment were used to treat the 155,000 tons of tainted soil.

  13. Case Study: Waterbury, CT Development – Brass Mill Center Mall • The entire demolition and remediation was completed well ahead of schedule and under budget • construction of the 1,300,000 square foot Brass Mill Center was then completed

  14. Your Task • Groups of up to 2 students will work together to research local ‘Brownfield Sites’ • You will gather information about the site and report back to your classmates in the form of a PowerPoint Presentation. • http://www.ct.gov/dep/cwp/view.asp?a=2715&q=324930 • Your goals are to: • Identify Contaminants Present • Identify the affects of the contaminants of the environment. • Determine how the site was/should be cleaned up

  15. To be answered: • General description of site: • Name, Location, Site Definition • Contaminants: • Types in location, Why are they there, affects on environment • Investigation • formulate a question about the site that may be answered through scientific investigation and to design the investigation. • Do not worry about the specific steps needed to isolate the contaminant or specific techniques used to measure the contaminant’s effect on the environment. Focus on writing a general plan for your investigation including the independent and dependent variables to be studied, general procedures you will follow and the data you will collect.

  16. Brownfield Research Sites • Newhall Remediation Project, Hamden CT • http://www.newhallinfo.org/ • Raymark Industries, Stratford CT • http://yosemite.epa.gov/r1/npl_pad.nsf/cf430d675d2ce79085256aee0044e5a6/a4b8dbf11e4134398525692d00618241?OpenDocument

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