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One beach not suitable for swimming this week, DRNA says: Pico de Piedra

Published Sep 26, 2026 · 787 Daily · Original analysis

DRNA’s weekly beach notice, published September 25, names one beach as not suitable for swimming. Pico de Piedra in Aguada has now been named in 9 of the 60 notices on file, more than any other beach on this week’s list.

One of them was already on the previous notice. The water was sampled September 21, 4 days before the notice went up, and rain can change a beach in an afternoon.

A beach that is not on the list was either within limits or was not sampled: 14 of the 49 stations carry no sample from the last 21 days. The tables below carry each beach, its last published number and how often it has been named this season.

Not suitable for swimming this week

Source: DRNA "Notificación Monitoria de Playas", posted September 25; samples taken September 21. Numbers from CARICOOS's monitoring feed.
BeachTownEnterococcusSampledTimes flagged this season
Pico de PiedraAguada435September 149 of 60

Off the list since the last notice

No beach came off the previous list, published September 16.

What this notice does and does not say

34 of 49 stations, within limits34 1 of 49 stations, under advisory 14 of 49 stations, not sampled in 21 days14 within limits under advisory not sampled in 21 days
All 49 DRNA monitoring stations by their latest verdict. Grey is unknown, not bad — a station with no sample in 21 days has not passed anything and has not failed anything. Every station's own number and date is on the beach water quality page.
DRNA publishes the notice days after the water is sampled — this one covers samples taken September 21, posted September 25, and a heavy shower can push a beach over the 70-colony action value hours after a clean sample was taken. A beach that is not named was either within limits or was not sampled, and the two are not the same thing: 14 of the 49 monitoring stations carry no sample from the last 21 days.

Volunteer labs test some beaches DRNA does not, and their results are published separately: they are not part of this notice and cannot put a beach under advisory.

Every monitoring station, with its own number and its own date, is on the beach water quality page; DRNA’s notice itself is here (and as a PDF, which is a scan).

This is the 4th Beach Watch (the previous one is here).

Source: DRNA “Notificación Monitoria de Playas”, posted September 25; samples taken September 21. Numbers from CARICOOS’s monitoring feed. The Beach Action Value is 70 colonies of Enterococcus per 100 mL; DRNA’s notice is the only thing that puts a beach under a swimming advisory, and it is superseded by the next one.