"Radiation levels in rainwater collected in Portland, Oregon on March 25, 2011 were 86.8 pCi/L for Iodine 131 (I131), amongst the highest recorded in the US after Fukushima. Rain in Olympia had even higher levels of radioactive Iodine. The Portland result was not posted by EPA until April 4.
"The maximum level of Iodine 131in rain in Olympia, WA was 125 pCi/L on March 24, which was not posted by EPA until April 4.
"Highest levels in rainwater in California were collected March 22, 2011 in Richmond, CA with levels of 138 pCi/L." Counterpunch