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

Kanye West, now known as Ye, is set to perform at Jakarta’s Gelora Bung Karno (GBK) Main Stadium on 24 October 2026. As the only Southeast Asian stop on his tour, the concert is attracting fans from across the region and beyond. The international interest was evident from the first 24 hours of ticket sales. […]

An inspection by Indonesia’s Ombudsman has brought renewed scrutiny to facilities at Cibinong Class IIA Prison in Bogor, West Java, after officers found a group of buildings with amenities resembling private residences. The findings were made during a surprise inspection on 23 September 2026. Ombudsman officials said they found more than 10 rooms in an […]

Gubernur DKI Jakarta Pramono Anung said the recent staging of Pestapora and The Weeknd’s concerts generated nearly Rp250 billion in economic activity in Jakarta. Pramono made the statement on Monday, 28 September, after receiving a report on the economic activity associated with the two music events. According to him, the events contributed to economic movement […]

Indonesia has signed visa-free agreements for diplomatic and service passport holders with Lebanon, Saint Vincent and the Grenadines, and the Dominican Republic. The agreements were signed by Indonesian Foreign Minister Sugiono on 23 September 2026 in New York, on the sidelines of the High-Level Week of the 81st United Nations General Assembly. The agreements are […]

Expat Events

Indonesia Visas

Expat Event

Business Networking
IDR 170.000
Fairfield by Marriott Kuta Sunset Road
Social Networking
IDR 120.000
Lufre Senopati
Social Networking
IDR 120.000
The 18th Rooftop Bar at The Trans Resort Bali

Indonesia Guide

Just For Fun

Write For Us

Exclusive Promotions

Event Gallery