TY - RPRT TI - December 23, 2021, Red Hill synoptic groundwater-level survey, Hālawa area, O‘ahu, Hawai‘i AU - Rylen K. Nakama AU - Jackson N. Mitchell AU - Delwyn S. Oki PY - 2022 DO - 10.3133/ofr20221018 UR - https://pubs.usgs.gov/publication/ofr20221018 ID - ofr20221018 ER -