Secretary of Homeland Security Janet Napolitano slammed BP Oil on Thursday, citing a lack of communication in the Deepwater Horizon disaster and ordered BP to create a website within 24 hours containing accurate sampling data of the massive oil spill in the Gulf of Mexico.

In the same letter to BP Oil CEO Tony Hayward, Environmental Protection Agency Adminstrator Lisa Jackson ordered BP to use a “less toxic” dispersant within 72 hours to break up oil plumes that are reaching parts of the U.S. coast. “Given the unprecedented use, EPA wants to ensure BP is using the least-toxic approved product,” the EPA said in a statement Thursday.

Napolitano and Jackson criticized BP’s lack of communication with the public and federal government stating the company’s efforts “have fallen short in both their scope and effectiveness.”

The website ordered by Napolitano must feature the environmental data (chemical, biological, and physical) and monitoring and sampling data and analytical data within 24 and 48 hours, respectively. The locations of booms, oil plume trajectories, sampling and monitoring locations and distribution of dispersant must be made public as well. The sets of data must be updated on a daily basis.

All videos, records and investigative reports related to the spill be made public. The public and the United States government are entitled to nothing less than complete transparency in this matter,” the letter states.