BROWNFIELDS
BROWNFIELDS AND WATER
POLLUTION
BEFORE
AFTER
The Water Cycle
Driven by Radiant Energy from the Sun.
WATER ON THE GROUND: Surface Water
Haddam Surface Water Resources
Rivers
Streams
Wetlands
Surface Water
Killingworth’s
Surface Water
Resources
Rivers
Streams
Wetlands
Surface Water
Drainage System – Small streams flowing
into larger streams and rivers.
Drainage Systems are called Watersheds
Watersheds are used to
manage water.
Map Key: Watershed Boundary
Movement
of water
What is a Watershed?
A Watershed is an area of land
that drains to a single outlet.
Drainage Divide – ridge
separating watersheds
Major Watersheds in Connecticut
HKHS
South
Central
Coastal
U.S. DRAINAGE BASINS
Water flow =
What happens when the watershed is polluted?
Brownfield Sites
Threaten Water Resources
What is a Brownfield?
A BROWNFIELD is property that is not being
redeveloped because it is or might be contaminated.
What is a Brownfield?
EPA’s Brownfields Program:
Helps states and communities clean up and reuse
brownfields for economic development.
HELPS TO:
1.
2.
3.
4.
Protect the Environment
Build Partnerships between businesses & towns
Strengthen the Marketplace
Improve a community’s long-term quality of life
Brownfields Redeveloped
CT Brownfields
Connecticut’s Bureau of Waste Management oversees CT Brownfields clean up programs
Connecticut’s SUSPECTED sites:
http://www.ct.gov/dep/cwp/view.asp?a=2715&q=324930&depNav_GID=1626
There are over 290 sites in Connecticut.
http://www.ctbrownfields.com/default.asp
CT Brownfields
Investigating a Brownfield Site
CAPT – Science, Technology & Society
STEP 1 - What do you know about the site?
Location:
7 Candlewood Hill Rd
Past Use:
Farm Equipment
Manufacturing
Investigating a Brownfield Site
CAPT – Science, Technology & Society
STEP 1 - What do you know about the site?
What do you see?
Investigating a Brownfield Site
CAPT – Science, Technology & Society
STEP 1 - What do you know about the site?
Natural Resources– Is there surface water?
CT River
Candlewood Hill Brook
Investigating a Brownfield Site
CAPT – Science, Technology & Society
STEP 1- What do you know about the site?
Natural Resources – Is there Ground Water?
Investigating a Brownfield Site
CAPT – Science, Technology & Society
STEP 2 - What are the suspected contaminants?
Look at your “Brownfield Contaminants Guide”.
Investigating a Brownfield Site
CAPT – Science, Technology & Society
STEP 2 - What are the suspected contaminants?
The Town of Haddam has found that the site may
contain:
1. Heavy metals
2. volatile organic compounds (VOCs)
3. pesticides and herbicides
Investigating a Brownfield Site
CAPT – Science, Technology & Society
STEP 3 - What do the suspected contaminants threaten?
Heavy metals:
•Poisoning
•Nerve and brain damage
•Allergic reactions
•Tiredness and headaches
•Birth defects and miscarriages in humans and
other animals
Pesticides and Herbicides:
are designed to kill and
harm, are carcinogens, and irritate skin and eyes
Investigating a Brownfield Site
CAPT – Science, Technology & Society
STEP 4 – Design an Investigation to
determine extent of contamination.
Your suspected contaminants and site
map are your guide.
WHAT DO YOU SEE?