Ghaziabad: The National Green Tribunal has disposed of a complaint filed by a resident against 19 dyeing units in Roop Nagar, Arya Nagar and Tronica City areas of the district for violating environmental norms.The UP Pollution Control Board (UPPCB) informed the tribunal about compliance and recovery of Rs 17 lakh from the common effluent treatment plant that was earlier found violating environmental norms, including improper functioning.The tribunal bench, comprising chairperson Justice Prakash Srivastava and expert member Dr A Senthil Vel, observed that the report dated July 17, 2025, filed by UPPCB reveals that an inspection on March 5 and 6, 2025, found that out of 19 units, 14 units were complying, 5 units were closed due to their own reasons, and the 6 MLD CETP at Tronica City, Loni was also found to be complying.The report further reveals that in the earlier inspection done in the year 2023, the operation of CETP was found to be unsatisfactory, and after issuing a show cause notice, environmental compensation of Rs 17 lakh was imposed, which has been recovered. The tribunal noted this, directing one of the respondents in the case, UPPCB, to carry out regular check-ups to ascertain that these industrial units and the CETP comply with the environmental norms and, in case of any violation, prompt action is taken.This came after an application was filed by resident Varun Gulati in 2023, wherein he raised the grievance against seven dyeing industries situated in Roop Nagar, four industries in Arya Nagar, and eight industries along with one CETP in Tronica City, Loni.The UPPCB, in its report filed before the tribunal, stated that the industries situated at Roop Nagar and Arya Nagar have installed their effluent treatment plants and discharge the waste into Indirapuri Drain to the Yamuna River and are not connected to CETP. The industries situated at Tronica City have their primary effluent treatment plant (PETP), and effluent from their PETP goes to CETP for further treatment. The CETP discharges its waste into Jawli Drain to Hindon River. The report stated that the discharge samples collected from the outlet of the CETP on nine different dates from Jan to March 2025, upon analysis, were found to be in conformity with the prescribed environmental norms.Anuj Kumar Sharma, appearing for respondent numbers 6 to 12, raised an objection to impleading four of the industrial units, three of which were complying and one was closed since 2020. Replying to the objections, the tribunal said, “Though complying as of today, if they committed any past violation, the applicant was justified in impleading them. Even otherwise, we are not directing any action against these respondents.”