In a 2002 letter to the United States Environmental Protection Agency, Marine Corps Commandant J.L. Jones stated to the Transportation Corridor Agencies (TCA), who operates the toll roads in Orange County, “Frankly, my preference is that the proposed toll road not be constructed on or near Camp Pendleton. This construction is one more encroachment venture that will hinder ability to prepare for war. It will also result in additional losses of natural areas that support endangered species, thus placing an even greater burden on Camp Pendleton to protect the region’s biodiversity.” In 2008, after the rejection of the proposed toll road extension of SR 241 through San Onofre State Beach Park for environmental reasons, the TCA filed for permission to build on the northwestern portion of the base. A spokesman for Camp Pendleton denied the request in 2010, stating that they could only allow the toll road to run through the San Onofre State Beach Park because their training missions could not be completed without the proposed land. In fact, the California gnatcatcher, an endangered species, resides on the northwestern portion of the base. The TCA funded a study in 2013 to remove the California gnatcatcher from the endangered species list, which would have made it easier to negotiate the construction and planning of the 241's extension through the San Onofre State Beach Park.