Survey Nos.646 to 671, 679, 685, 732 to 742, 744 to 752 of village Lakhigam, which is located at the bank of Arabian Sea at Gulf of Khambat creek in Bharuch district. The total plot area of Birla Copper Unit is 327 Ha. There are two stage Effluent Treatment Plant (ETP) provided at the Birla Copper Unit. The first stage ETP consists of raw effluent storage tanks (2 nos.) with lime slurry and FeSO4 solution dosing system, 1st stage primary clarifier, 2nd stage precipitator reaction tanks (3 nos.) with lime dosing system, 2nd stage primary clarifier, intermediate tank, 1st stage treated waste water holding lagoon, RVDF (for sludge de-watering). The 2nd stage (polishing) ETP consists of polishing neutralization cum equalization tank, polishing clarifier, clarified waste water holding tank, PSF filter with waste water tank, dual medial filter, ultra filtration unit, RO feed tank, RO plan, permeate storage tank, RO reject storage tank. The first stage treated waste water from 1st stage treated waste water holding lagoon is taken into the 2nd stage ETP. Final treated waste water (RO permeate) is reused in the plant/unit with RO reject being discharged into Arabian sea through 2.5 km long discharge pipeline of the unit. The RO reject water is to conform to discharge norms of CCA and EP rules for marine waters. The Birla Copper Unit generates 4715 Kl/day (including RO reject 1000 KL/day) of industrial effluent and 406 KLD of domestic sewage and the industrial effluent has to be treated in the ETP as outlined above. There are 2 Sewage Treatment Plant (STP) one in the plant (500 KLD) the other is in the township (350 KLD) with primary and secondary treatment systems and treated water is to be used for gardening. 03. According to the applicant, respondent No.8-Hindalco was granted Environmental Clearance (EC) by respondent No.7-MoEF&CC on 14.03.1995, 08.01.2002, 10.02.2004 and 18.03.2005.. Respondent No.8 applied for EC for expansion of Continuous Copper Rod (CCR) plant from 120000 to 240000 TPA, which was granted on 11.02.2009 by respondent No.7-MoEF&CC. Thereafter, respondent No.8 again applied to respondent N.7 for expansion of CCR plant capacity from 240000 to 484000 TPA by