Researcher Found A Dangerous E. coli Bacteria at Bali’s Most Popular Beaches

Share:

A nonprofit organisation in Bali has been monitoring the water quality at two of the island’s most popular tourist beaches. According to the tests’ findings, the seawater in Canggu’s Batu Bolong Beach and Seminyak’s Petitenget Beach is contaminated with harmful E.coli bacteria.

Yayasan Bali Bersih, a Bali-based nonprofit affiliated with the Westerlaken Foundation in the Netherlands, has been performing water quality assessments at Bali’s busiest beaches destinations whichresults are surprising. 

Through their Instagram accounts, Yayasan Bali Bersih (the Clean Bali Foundation) and the Westerlaken Foundation have shared their findings with the general public. The organisations conduct routine laboratory testing on seawater as part of regular water quality surveys. 

The nonprofit organisation stated that the objective of the research was to “determine whether or not there are Escherichia coli [E, coli] bacteria in seawater, which can disrupt marine ecosystems and potentially endanger the health of locals and beachgoers.”

Researcher Found A Dangerous E. coli Bacteria at Bali's Most Popular Beaches
Source WHO

Yayasan Bali Bersih and the Westerlaken Foundation discovered that E-coli bacteria are present in the ocean after collecting water samples on the 21st of June, 2023. To ascertain the frequency of E. coli in the water samples, the researchers employed the MPS (Most Probable Number Method). According to the results, there were bubbles in the lab test tubes with an MPN of more than 1100.

This indicates the presence of E.coli and seawater contamination in Canggu’s Batu Bolong Beach and Seminyak’s Petitenget Beach. It is concerning because E. coli can be found in water supply and food processing. E.coli contamination is likely due to home or human waste, such as faeces.  The high concentrations of E. coli discovered in the water samples last week suggest a danger of the disease spreading among humans due to the bacteria. 

According to the researchers, “The inspection results will provide important information to the authorities and the public regarding the condition of clean sea water in Bali.”

The researchers added, “By knowing the content of Escherichia coli in seawater, countermeasures and improvements can be taken to minimise health risks and maintain the sustainability of marine ecosystems.”

Interested in this topic? Check out our other articles from Social Expat: 

Related News

Indonesian fishermen at Sendang Biru Beach in Sumbermanjing Wetan District, Malang Regency, took swift action after a whale shark was accidentally caught in their fishing net. The incident happened on Friday, 10 April 2026, during a routine fishing trip. The moment gained attention after a video shared by the crew of KM Mutiara went viral […]

The Indonesian government, through the Ministry of Transportation, is preparing a water taxi project in Bali to ease congestion in key tourism areas, particularly in Badung Regency. The project is scheduled to begin construction in 2026, with an initial investment estimated at IDR 1.21 trillion. Minister of Transportation Dudy Purwagandhi said the programme forms part […]

Living and working abroad as an expat can be both an exciting and rewarding experience, particularly when relocating to Indonesia. From discovering new cultures and expanding international networks to unlocking broader career opportunities, life overseas offers considerable advantages. However, alongside these opportunities comes a practical reality that many expats must manage regularly: sending money back […]

LANY will bring their “Soft World Tour” to Jakarta on 30 October 2026 at Indonesia Arena. Promoted by Live Nation and TEM Presents, the concert is expected to draw strong demand from Indonesian fans. Ticket sales follow a structured schedule. The Artist Presale opens on Monday, 13 April 2026, from 12:00 PM to 11:59 PM […]

Indonesia Guide

Just For Fun

Write For Us

Exclusive Promotions

Event Gallery