Okay, we said it was over. We said the EPA disclosed the dispersant ingredients back in June:
- Details of the ingredients in the dispersant have been disclosed. The Environmental Protection Agency took care of this in early June. For the record, here’s the answer, from EPA:
What are the chemical components of the dispersants COREXIT 9500 and COREXIT 9527?
The components of COREXIT 9500 and 9527 are: CAS Registry Number Chemical Name 57-55-6 1,2-Propanediol 111-76-2 Ethanol, 2-butoxy-* 577-11-7 Butanedioic acid, 2-sulfo-, 1,4-bis(2-ethylhexyl) ester, sodium salt (1:1) 1338-43-8 Sorbitan, mono-(9Z)-9-octadecenoate 9005-65-6 Sorbitan, mono-(9Z)-9-octadecenoate, poly(oxy-1,2-ethanediyl) derivs. 9005-70-3 Sorbitan, tri-(9Z)-9-octadecenoate, poly(oxy-1,2-ethanediyl) derivs 29911-28-2 2-Propanol, 1-(2-butoxy-1-methylethoxy)- 64742-47-8 Distillates (petroleum), hydrotreated light *Note: This chemical component (Ethanol, 2-butoxy-) is not included in the composition of COREXIT 9500.
Learn more about CAS Registry Numbers from the American Chemical Society
A few environmental groups are not satisfied with the additional disclosures about the ingredients in the dispersants used in record numbers in the Gulf oil spill. They want to know what the safety studies say about the chemicals in the dispersants. They asked for the records from EPA back in May under the Freedom of Information Act, had their request logged and heard nothing. So they’ve sued.
Maybe they could ask OGIS for help? OGIS is supposed to mediate disputes. If mediation doesn’t work, OGIS can issue an advisory opinion setting forth a way to resolve what should be disclosed or withheld. It may be helpful and avoid costly and lengthy litigation.
Yes, we said it was over. But it was too good to be true. It turns out it’s not over until the FOIA lawsuit is filed.