NGT-ordered inspection uncovers major effluent violations in Sonepat

A joint inspection by the Haryana State Pollution Control Board (HSPCB) and the Central Pollution Control Board (CPCB) has revealed that 94 industrial units and Common Effluent Treatment Plants (CETPs) in the HSIIDC industrial zone at Barhi, Ganaur, have violated pollution norms. The inspection was conducted on the directions of the National Green Tribunal (NGT).

The investigation followed a complaint filed by Delhi-based environmentalist Varun Gulati, who alleged that industries in the Barhi industrial estate were discharging untreated effluent into Drain No. 6, which ultimately pollutes the Yamuna. The complaint highlighted the ineffectiveness of the CETP installed in the area.

A joint team inspected 157 industrial units, CETPs and Drain No. 6, collecting 253 samples from industrial inlets, outlets and the CETPs. The analysis revealed high levels of biological oxygen demand (BOD), chemical oxygen demand, total dissolved solids and heavy metals, indicating untreated or partially treated effluent being discharged into stormwater channels through underground pipelines.

“Following the NGT's directions, a detailed inspection report has been submitted,” said Pradeep Kumar, Regional Officer, HSPCB.

The report found that 94 units were non-compliant, including 69 of 74 textile units. Most textile units use Primary Effluent Treatment Plants (PETPs) and dispose of treated effluent into the HSIIDC sewer for further treatment at CETPs. However, poor operation and maintenance of PETPs, unregulated chemical dosing and lack of skilled personnel have resulted in non-compliance. In 52% of cases, the BOD levels of effluent entering PETPs were lower than expected, indicating dilution. In non-textile units, 25 of 39 were found non-compliant.

The HSIIDC operates two CETPs, with capacities of 10 MLD and 16 MLD. The 10 MLD CETP was found operating at only 40% capacity due to insufficient trade effluent while the 16 MLD CETP functioned at 85% capacity. Both CETPs failed to meet the prescribed inlet effluent quality standards. Samples of treated effluent from the CETPs also showed minor violations, with the treated effluent being discharged into Drain No. 6.

The findings have raised concerns about industrial compliance and pollution control measures in the region. The NGT is expected to take further action based on the detailed inspection report.