If it’s 70 million in LA County it seems possible that it’s a billion (plus) statewide.Then there’s NV,AZ,CO,TX,IL,NJ,PA and NY,among others.
"Individuals Who Are Not Authorized to Work in the United States Were Paid $4.2 Billion in Refundable Credits July 7, 2011"
TREASURY INSPECTOR GENERAL FOR TAX ADMINISTRATION - RECOVERY ACT (click here to read in entirety)