Tiruppur Quarry Waste Taints Groundwater; Pollution Board Official Urges Expert Probe

The District Environmental Engineer (DEE), Tiruppur North, has recommended the constitution of a multi-disciplinary technical committee to carry out a comprehensive field investigation of a suspected contaminated site covering abandoned quarries at Mudalipalayam and Nallur in Tiruppur district, Tamil Nadu. Waste from the Tiruppur City Municipal Corporation had been dumped at the site.

The recommendation was submitted to the Tamil Nadu Pollution Control Board (TNPCB) by T.G. Lavanya, District Environmental Engineer, Tiruppur North. It proposes that the committee include representatives of the TNPCB, the Central Pollution Control Board (CPCB), Anna University and other experts.

According to the recommendations, the study should cover four areas: assessing the extent and pathways of groundwater contamination; evaluating the effectiveness of the existing leachate management and containment measures; formulating short- and long-term strategies to improve groundwater quality; and strengthening environmental safeguards at the site.

The detailed report by the DEE, submitted after an inspection in July, confirmed widespread groundwater contamination caused by industrial waste, according to the findings. The inspection followed a complaint by social activist P. Velusamy, who wrote on behalf of the villagers of Mudhalipalayam and Nallur.

The complaint came after the CPCB designated the location a ‘Suspected Contaminated Site’ under Rule 4(5) of the Environment Protection (Management of Contaminated Sites) Rules, 2025. The 2025 rules provide a framework for identifying, notifying and managing contaminated sites in the country.

Citing the DEE’s recommendation, Mr. Velusamy urged the TNPCB to invite the CPCB to investigate the Mudalipalayam-Nallur suspected contaminated site. He said local authorities lack the facilities to test advanced contamination parameters and, in his assessment, the administrative will to resolve the crisis. These are the activist’s claims; they have not been independently verified by this publication.

Groundwater contamination near waste dumps is a matter of public concern because leachate — the liquid that drains through decomposed waste — can carry dissolved pollutants into underground aquifers. Once contaminants reach an aquifer, they can spread beyond the immediate site and are difficult and expensive to remove. In Tiruppur, a major textile and knitwear centre, groundwater is used for drinking and irrigation, which is why the proposed study includes both containment measures and longer-term plans to improve water quality.

The site in question is an abandoned quarry, a landform that can allow liquids to collect and seep downward. The DEE’s recommendations therefore place emphasis not only on measuring contamination but also on reviewing whether existing leachate collection and containment systems are working as intended.

It was not immediately known whether the TNPCB has accepted the recommendation or set a timeline for constituting the committee. Residents of Mudalipalayam and Nallur, who raised the initial complaint, have sought a role for the CPCB — the national body — in the investigation, arguing that a wider expert footprint would lend credibility to the findings.

The case is one of a growing number of contaminated-site assessments being taken up under the 2025 rules, which for the first time give regulators a formal process to identify suspect locations and plan remediation. How the Tiruppur case proceeds — and whether the recommended committee is set up — will be watched as an early test of that framework.