110 villages 775 mld drinking water senior official complaints bwssb core areas apartments depending potable water borewell water issued source situation orders tanker operators apartment dwellers fix rates growing demand krs dam low level southeast parts 20 million litres swimming pools attract penalties kill dust houses roads started depleting situation worsens recreational activities harsh summer bulk users summer water tankers sewerage board bwssb cooperate similarly wastage harsh summer depletion regular supply bwssb directions bulk users commissioned cauvery stage5 cauvery supply due cent borewells yielding washing vehicles frontyards