Koike, Ezra2018-03-052018-03-051970-10-26http://hdl.handle.net/10125/55592"preliminary soil exploration was made to determine general soil conditions at the proposed residential development site for the Waipahu Estates Subdivision Unit IA at Waipio, Ewa, Oahu, Hawaii"Includes memo, a boring location plan, boring logs, laboratory test results, recommendations, and limitations.tax map key: 9-4-07: 954 pagesengsoil explorationboring logsWaipahu EstatesWaipahuWaipioEwaOahuHawaiiSoils--Hawaii--OahuText