From 1902 to 1905, Eaton and Mulholland used underhanded methods to obtain water rights and block the Bureau of Reclamation. The regional engineer of the Bureau, Joseph Lippincott, was a close associate of Eaton, Eaton was a nominal agent for the Bureau through Lippincott, so Eaton had access to inside information about water rights and could recommend actions to the Bureau that would be beneficial to Los Angeles. In return, while Lippincott was employed by the Bureau, he also served as a paid private consultant to Eaton, advising Los Angeles on how to best obtain water rights.