Tesoro Corporation has sustained a second acid spill at the same refinery.  I wrote about the first acid spill here.  It appears that the first acid spill was worse than Tesoro first suggested.  The Chemical Safety Board described the latest information about the first spill as "eye-opening."  See San Jose Mercury News report. The CSB has indicated that it has now regained access to the site after Tesoro had barred the CSB investigators.  Two workers suffered sulfuric acid burns in this latest spill.  Tesoro is headquartered here in San Antonio. 

Worker safety should be more than just a slogan.