Nearly all consumers regain water access after sand mining incident caused massive turbidity surge in Sungai Johor

After days of disruption, 448,057 out of 455,499 water accounts in Johor have had their supply restored, following a pollution crisis in Sungai Johor that began last Friday. Cleanup efforts are still underway, with around 7,400 households yet to regain full access.

Most Areas See Water Supply Restored

According to Ranhill SAJ, Johor’s water operator, the majority of affected accounts have been reconnected as of 7pm yesterday. Johor Bahru recorded the highest recovery with 296,650 accounts restored, followed by Kota Tinggi (123,373) and Kulai (121,906).

However, 7,442 accounts remain affected — 5,837 in Johor Bahru, 1,467 in Kulai, and 138 in Kota Tinggi. Ranhill SAJ said 43 water tankers are being deployed to provide interim supplies while cleanup operations continue.

Cause of Pollution: Sand Mining Pond Collapse

Authorities traced the pollution to a collapse at a sand washing pond in Kota Tinggi, which caused soil movement and contamination in Sungai Johor. The incident spiked the turbidity level in the river to 37,400 Nephelometric Turbidity Units (NTU) — nearly 100 times higher than the normal level of 400 NTU.

The collapse occurred at an inland sand mining site operated by a private company, which is now under investigation. The extreme turbidity rendered raw water from the river unusable for treatment, leading to widespread water disruptions across multiple districts.

Authorities to Pursue Legal Action

The Department of Environment (DOE) confirmed it is investigating the company responsible under the Environmental Quality Act 1974 (Act 127). Following consultations with the Land and Mines Office (PTG) and the National Water Services Commission (SPAN), legal action will be initiated under the PTG Licensing Enactment and the SPAN Act.

Officials stated that any proven negligence or breach of environmental regulations could result in prosecution. The DOE has also pledged to tighten oversight of mining activities in water catchment zones to prevent future pollution events.

Ongoing Mitigation and Public Advisory

Ranhill SAJ is maintaining real-time communication through its Facebook page and official complaint channels. Consumers seeking updates can contact:

• Hotline: 1800-887-474
• Email: customer.care@ranhillsaj.com.my
• SMS: ATRanhillSAJAduan to 63001
• Online portal: https://www.ranhillsaj.com.my/report-a-problem

Residents in affected areas are advised to store water conservatively and avoid drawing untreated water from local sources until authorities confirm safety levels.

Environmental and Economic Impact

The crisis highlights the environmental risks linked to unregulated sand mining in Malaysia’s waterways. Besides disrupting domestic water supply, such incidents threaten aquatic ecosystems and impose heavy costs on recovery efforts. Johor’s swift response and coordination between state agencies and federal authorities have been key to minimizing long-term damage.

Environmental groups are calling for stricter enforcement and periodic audits of industrial activities near rivers to prevent similar crises in the future.

Johor’s rapid recovery from the Sungai Johor pollution crisis underscores both the resilience of local infrastructure and the urgent need for stronger environmental safeguards. As cleanup continues and investigations unfold, the incident serves as a reminder of how industrial negligence can ripple through communities, threatening both livelihoods and essential resources.

Sources: Malay Mail (2025) , Bernama (2025)

Keywords: Johor, Water Supply, Sungai Johor, Pollution, Sand Mining, Ranhill SAJ