HagåTñA Marina is a saltwater beach in Guam County, Guam. Across 646 bacteria samples collected between 2021 and 2026 at nearby monitoring stations, it earns a Beach Safety Grade of D — Poor.
About 14% of samples at HagåTñA Marina 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 frequently crossed here over the monitored period. Bacteria samples frequently exceed the safe-swimming threshold; swimming advisories are common here.
In the most recent full reporting year, HagåTñA Marina was under a swimming advisory for about 14% of its monitored beach days — a useful gauge of how often problems recur here beyond any single sample.