Environmental Engineer Mahesh Pandya and SVREC Engineering College principal Dr J C Vyas, who attended the first public hearing for the Combined Cyle Power Plant, found the corporation's presentation ``unsatisfactory'' as the representatives failed to explain the water balance.

As per the proposal, the plant's water requirement is to be met from the Singanpore weir through GIDC-laid pipelines. The total intake is estimated to be 6240 kilo-liters per day while outflow will be 1569 kilo-liters per day. This implies a 372.4 per cent (4680 kilo-liters) water loss. The permissible limit is five per cent.

Speaking to Express Newsline Dr Vyas said. ``I asked the corporation people to explain the difference between intake and outflow, which they failed to do. Unless the corporation satisfies us and the Gujarat Pollution Control Board (on this count) it cannot get the NOC '' he added.

District Development Officer Bharat Joshi, who attended the hearing on behalf of collector Sangeeta Singh, told the corporation to provide copies of the water balance sheet to all members and experts . The DDO also asked the corporation to send representatives to the site along with the village sarpanch.

The sarpanch, the lone public representative at the public hearing on June 30, expressed concern over the village's safety. The flood-prone village is in a low-lying area.

Besides water balance, the corporation had not planned a final disposal point for the waste water into the sea as per Indian Oceanography Institute guidelines, said environmental engineer Mahesh Pandya, who is associated with the Ahmedabad based NGO, the Centre for Social Justice.