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

A high school student has been arrested and detained by police in East Nusa Tenggara (NTT) following the alleged physical and sexual assault of an Australian citizen at a remote beach resort. The suspect, identified by his initials AH, was apprehended by authorities shortly after the victim reported the incident to the Southwest Sumba Police […]

Indonesia’s Ministry of Tourism has proposed expanding the country’s Visa-Free Visit (Bebas Visa Kunjungan/BVK) scheme to include travellers from Australia, China, India, Japan, South Korea and New Zealand, along with permanent residents (PRs) of Singapore, as part of efforts to strengthen international tourism. The proposal, which is still under discussion with relevant ministries and government […]

The World Health Organisation (WHO) has reported that over 1,300 people have died as a result of the extreme heatwave that has been affecting Europe since 21 June 2026. This extreme weather has been recorded as one of the worst heatwaves in the region’s history. WHO Director-General Tedros Adhanom Ghebreyesus confirmed the additional death toll […]

Rock legends Guns N’ Roses are set to return to Indonesia after an eight-year absence, with a concert scheduled at Gelora Bung Karno (GBK) Madya Stadium in Jakarta on 21 November 2026 as part of their latest world tour. The show marks the band’s first performance in Indonesia since their concert at the GBK Main […]

Indonesia Guide

Just For Fun

Write For Us

Exclusive Promotions

Event Gallery