Head Of HumåTak Bay is a saltwater beach in Guam County, Guam. Across 512 bacteria samples collected between 2021 and 2026 at nearby monitoring stations, it earns a Beach Safety Grade of D — Poor.
About 20% of samples at Head Of HumåTak Bay 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, Head Of HumåTak Bay was under a swimming advisory for about 27% of its monitored beach days — a useful gauge of how often problems recur here beyond any single sample.
📍 13.2980, 144.6630 · Open in Google Maps. Coordinates mark the monitored shoreline, not a specific access point.
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Common questions
Frequently Asked Questions
Head Of HumåTak Bay earns a Beach Safety Grade of D (Poor), based on 512 bacteria samples where about 20% exceeded the EPA safe-swimming threshold. Always confirm the current advisory before swimming, especially after heavy rain.
Water samples near Head Of HumåTak Bay are tested for Enterococcus, uploaded to the EPA Water Quality Portal. A sample above the Beach Action Value (104 CFU/100 mL) signals a higher risk of illness from swimming. BeachGrade summarizes multiple years of those results into one grade.
Head Of HumåTak Bay is a saltwater beach in Guam County, Guam.
Beach inventory and advisory status from the U.S. EPA BEACON program; bacteria samples from the Water Quality Portal. The Beach Safety Grade summarizes multiple years of monitoring — see our methodology. Water quality changes quickly, especially after rain; always check the official state or county advisory before swimming. BeachGrade is informational and not a substitute for official public-health guidance.