Mai Poina Oe Lau Beach Co. Pk. is a saltwater beach in Maui County, Hawaii. Across 89 bacteria samples collected between 2021 and 2024 at nearby monitoring stations, it earns a Beach Safety Grade of A — Excellent.
About 0.0% of samples at Mai Poina Oe Lau Beach Co. Pk. exceeded the EPA Beach Action Value of 104 CFU/100 mL for Enterococcus — the threshold at which water managers typically post a swimming advisory. In practice that means the safe-swimming limit was almost never crossed here over the monitored period. Bacteria samples almost never exceed the safe-swimming threshold.
The evidence behind this grade is deep for a beach page: 89 results from 3 monitoring stations, spanning 2021 to 2024. Enough sampling, from enough places, over enough seasons that one bad week can't drive the letter.
Mai Poina Oe Lau Beach Co. Pk. was not under a swimming advisory in the most recent EPA snapshot. Conditions can change quickly after heavy rain or high runoff, so it's still worth checking the current advisory the day you go.