Name Teacher Period
Worksheet for Brownfield Sites
Answer the following questions:
1. What is a Brownfield Site?
2. What government agency(s) are responsible for compiling and maintaining the list of Brownfield sites?
3. Who is responsible for the clean up of Brownfield Sites?
4. Approximately how many Brownfield sites are in Simsbury?
5. What are the most common reasons that they are considered Brownfield sites?
6. What is the address of a site near your house or the high school?
The Effect of Contaminants on the Environment
Read the handout “What types of contamination are there in the neighborhood and where did they come from?”
Answer questions a. b. c. about background information. a. Why was this site identified as a Brownfield site? b. What types of chemicals/contaminants are suspected as being present? c. What are some hazards that these chemicals present?
Go to this website and answer questions 1 and 2.
Newhall Remediation Project, Hamden – http://www.newhallinfo.org/HMS_testing_summer_2004.html
1. Where is the site located?

CT Department of Environmental Protection
Significant Environmental Hazard Condition Notification Threshold Concentrations
Reference Table C Inorganic Substances
Inorganic Drinking Water Surface Soil
Substances Well
Groundwater contamination for
Arsenic protection criteria
50 ug/l
Residential
300 mg/kg
Surface Soil contamination for Industrial or
Commercial
Land Use
300 mg/kg
Surface
Water 10 x
Acute
Toxicity
Fresh-water n/a
Surface Water
10 x Acute
Toxicity
Salt-water n/a
Lead 15 ug/l 15,000 mg/kg 30,000 mg/kg 300 ug/l 2100 ug/
CT Department of Environmental Protection
Significant Environmental Hazard Condition Notification Threshold Concentrations
Reference Table B Semi-volatile Organic Substances—PAH’s
Semi-volatile Organic
Substances
Drinking
Water Well
Groundwater protection criteria
Surface Soil contamination for
Residential
Surface Soil contamination for
Industrial or
Commercial Land
Use
Surface
Water 10 x Acute
Toxicity
Freshwater
Surface Water
10 x Acute
Toxicity
Salt-water
Benzanthracene, 0.06 ug/l
Benzo(b)fluoranthene, 0.08 ug/l
Benzo(a)pyrene 0.2 ug/l
30 mg/kg
30 mg/kg
30 mg/kg
234 mg/kg
234 mg/kg
30 mg/kg
Note 1
Note 1
Note 1
Note 1
Note 1
Note 1
Fluoranthene
Naphthalene
280 ug/l
280 ug/l
30,000 mg/kg Note 2
30,000 mg/kg
Note 2
Note 1
Note 1
Note 1
Note 1
Note 1 No acute toxicity criterion published in Water Quality Criteria
Note 2 Notification to owner by TEP not required by statutory exception for Surface Soil contamination for
Industrial or Commercial Land Use
Designing a Scientific Investigation.
Hypothesis: (A tentative proposal or prediction of the outcome of the investigation. The hypothesis is proved correct or wrong by the results of the investigation.)
Independent Variable (The experimenter changes the independent variable to see what effect the change has on the dependent variable).
Dependent Variable (It is the variable that is observed and measured in response to the independent variable.
This variable is changed by the independent variable.)

Designing a Scientific Investigation (continued)
Control/Constants (The control group is identical to all other items or subjects that you are examining with the exception that it does not receive the treatment or the experimental manipulation that all other items or subjects receive. You can evaluate the results of your experiment by comparing the control group to the group or items in the experiment. )
General Overview of the Procedure
Materials Needed: (What and how much?)
Procedure: (Step by step)
Sketch of the lab setup or test site:
Sample Data Table: