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Hanford Site - 100-BC-5

July 1, 2014 - 12:00pm

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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
PBS Number: 30
Report Last Updated: July 2014 with CY2013 data

 

Contaminants

Halogenated VOCs/SVOCs Present?: Yes

 

VOC Name Concentration (ppb) Regulatory Driver Cleanup Requirement
TCE 2.8 No  

 

Metal Name Metal Concentration (ppb) Regulatory Driver Cleanup Requirement
Cr (total) 71 Yes 100 (DWS); 48 (MTCA)
Cr-6 62.5 Yes 48 (MTCA); 10 (AWQC)

 

Isotope Name Isotope Activity (pCi/l) Regulatory Driver Cleanup Requirement
Sr-90 53 Yes 8 (DWS)

 

Fuel Present? No
Metals Present? Yes
Isotopes Present? Yes
Explosives Present? No
Other Contaminants? No
Tritium Present? Yes
Nitrates Present? Yes
Sulfates Present? Yes

 

Tritium Present? Activity Regulatory Driver Cleanup Requirement (pCi/l)
Yes 19,000 (pCi/l) Yes 20,000

 

Nitraties Present? Concentration (ppb) Regulatory Driver Cleanup Requirement
Yes 38,300 Yes 45,000

 

Sulfates Present? Concentration (ppb) Regulatory Driver Cleanup Requirement
Yes 68,200 No  

 

Hydrogeology

Conduit Flow? No Depth (feet): 75
Mulitple Units Affected? No Avg Velocity (feet/year): 300

 

Plume Information

Source: Not Present Area of Plume (acres): 388.45
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: Other - RI/FS in progress

 

Environmental Indicators (EIs)

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

 

Regulatory

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

 

Comments

RI/FS process is underway.

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