There are demands emerging that the Evergreen Oil Refinery change its practices or shut down.

"They seem to be a pattern of problems," said Liza Tucker from Consumer Watchdog.

Consumer Watchdog says the California Department Of Toxic Substances Control is failing to police Evergreen oil after repeated violations near homes and schools.

"It's just simply unacceptable to let a company off the hook that way for years at a time," said Tucker.