Rainwater harvesting at Biju Patnaik Park Bhubaneswar: The Biju Patnaik Park here became the first park in the city to adopt land-based Rainwater Harvesting (RWH) system on its premises. Observing the constant water-logging and flooding in state capital, the Bhubaneswar Development Authority (BDA) had proposed to install RWH system in the park in January this year. Constructed at a cost of Rs 11 lakh, the RWH structure has about nine recharge pits spreading over 22 acres. “The purpose of putting up rainwater harvesting structures in parks is to recharge the groundwater. Usually, a huge quantity of rainwater goes into drains and wasted. With little planning and expenditure, we can easily stop the waste of this precious resource and use it for recharging the groundwater on a massive scale,” said BDA Chief Engineer Rajendra Kumar Nayak.