Back Bay Beach is a saltwater beach in Virginia Beach County, Virginia. Across 133 bacteria samples collected between 2021 and 2026 at nearby monitoring stations, it earns a Beach Safety Grade of C — Fair.
About 11% of samples at Back Bay Beach 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 sometimes crossed here over the monitored period. Bacteria samples occasionally exceed the safe-swimming threshold — check the latest advisory before swimming.
The evidence behind this grade is deep for a beach page: 133 results from 18 monitoring stations, spanning 2021 to 2026. Enough sampling, from enough places, over enough seasons that one bad week can't drive the letter.
Back Bay Beach 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.