You are here

Hanford Site - 100-BC-5

January 1, 2009 - 12:00pm


US Department of Energy Groundwater Database
Groundwater Master Report

InstallationName, State: Hanford Site
Responsible DOE Office: Office of Environmental Management
Plume Name: 100-BC-5
Remediation Contractor: CHPRC
Report Last Updated: 2009



Halogenated VOCs/SVOCs Present?: No


Metal Name Metal Concentration (ppb) Regulatory Driver Cleanup Requirement
Cr (total) 64 Yes 20


Isotope Name Isotope Activity (pCi/l) Regulatory Driver Cleanup Requirement
Sr 38 Yes 8


Fuel Present? No
Metals Present? Yes
Isotopes Present? Yes
Explosives Present? Yes
Other Contaminants? No
Tritium Present? Yes
Nitrates Present? No
Sulfates Present? No
Activity: 59000 (pCi/l)
Regulatory Driver: Yes
Cleanup Requirement: 20000 (pCi/l)



Conduit Flow? No Depth (feet): 100
Mulitple Units Affected? No Avg Velocity (feet/year): 400


Plume Information

Source: Not Present Area of Plume (acres): 200
Plume Status: Plume static or shrinking in size    


Remdial Approach


Groundwater Use / Exit Strategy

Potable? Yes Does an Exit Strategy Exist? No
Sole Source Aquifer?  No Basis for Exit Strategy: No Response


Environmental Indicators (EIs)

Groundwater Migration Under Control? Yes Current Human Exposure Acceptable? Yes
Confirmed by Lead Regulator? Yes Confirmed by Lead Regulator? Yes



Decision Document? Assessment Ongoing Lead Regulatory Agency: Federal
Date Approved:   Regulatory Driver: CERCLA
Regulatory Position on Groundwater Use Same as Site? Yes



No active remediation required at this time, however the RI/FS process is underway. DOE may need to address the Cr plume.