Sweetwater Chapter House

Contaminant Data

Radioactive Contaminants

Danger
Name
Amount
Safe Limit*
Lead-210 0.70 0.047*
Radium-226 0 5
Radium-228 0 5
Thorium-228 0.3 0.21*
Thorium-230 0.3 1.3*
Thorium-232 0.3 1.5*
Uranium-234 11.7 20
Uranium-235 0.7 20
Uranium-238 6.10 20
Alpha particles 12.8 15
Beta paricles 6.70

50

all numbers are in picocuries per Liter

 

Click on the name of the contaminant for more information about possible health risks associated with that contaminant

No significant health risk

possible health risk

high health risk

 

Metal Contaminants

Danger
Name
Amount
Safe Limit*
Aluminum 36.0 1000
Arsenic 11.4 50
Barium 17.0 1000
Cadmium 0 5
Chromium 3.2 100
Iron 0 300
Lead 0 15
Mercury 0.019 2
Selenium 2.2 50
Thallium 0 2

all numbers are in micrograms per Liter

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

* The Safe Limit values for Lead-210, Thorium-228, Thorium-230, and Thorium-232 are based on the Preliminary Remediation Goals(PRG) for cleaning up contaminated sites. All other Safe Limit values are based on Maximum Contaminant Levels(MCL). Both values are determined by the USEPA.