Geiger Readings for August 21, 2013
Latitude 47.704656 Longitude -122.318745
Ambient office = .114 microsieverts per hour
Ambient outside = .147 microsieverts per hour
Soil exposed to rain water = .121 microsieverts per hour
Raisins from Costco = .090 microsieverts per hour
Tap water = .084 microsieverts per hour
Filtered water = .063 microsieverts per hour