Weekly Pumpage Charts


Due to signs of strain on Beretania wells, the Board of Water Supply has requested island residents and businesses to voluntarily reduce their water use by 10 percent now to prepare for the 2022 summer season. This is due to rising levels of chloride in the BWS Beretania Wells resulting from additional pumping to help make up the loss of supply from Halawa Shaft and less than normal rainfall this year (read news release). The following weekly pumpage charts for island, Honolulu and Aiea Halawa will be updated every Friday.


Island Weekly Pumpage, January 2021 to May 6, 2022


Honolulu Weekly Pumpage, January 2021 to May 6, 2022


Aiea-Halawa Weekly Pumpage, January 2021 to May 6, 2022


Updated: 05/16/2022