september 14, 2016 presented by new hampshire …coakley landfill update september 14, 2016...
TRANSCRIPT
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Coakley Landfill Update September 14, 2016
Presented by New Hampshire Department of
Environmental Services
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PFOA/PFOS results 1,4-dioxane status & groundwater flow Information needs Area drinking water well review Summary of next steps
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GREENLAND
North Hampton
Rye
Existing Subdivision
Proposed Subdivision
Existing Subdivision
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Coakley Landfill
GMZ
Groundwater Management Zone (GMZ)
PFOA/PFOS Results
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Groundwater Flow Direction
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Coakley Landfill
GMZ
Information Needs
Groundwater Mngmnt Zone (GMZ)
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Coakley Landfill
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General ◦ Area well review (postcards to be mailed week of 9/19) ◦ Support EPA in further evaluation of PFOA/PFOS ◦ Surface water & sediment sampling for 1,4-dioxane &
PFOA/PFOS North of Landfill ◦ Residential well sampling to continue ◦ Compliance wells (demonstrate clean boundary) ◦ Water main extension to proposed subdivision ◦ Support Town of Greenland in sampling of residential wells
South of Landfill ◦ PRP-lead residential well sampling to continue ◦ Compliance wells to be identified
East of Landfill ◦ Confirm groundwater flow direction ◦ Evaluate next steps
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12” Main
12” Main
Bethany Church
Breakfast Hill Road
Proposed Subdivision
Existing Water Tower
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Homes sampled in Stone Meadow Way neighborhood had no 1,4-dioxane detected.