Rainwater from the roof is collected and funneled into a 25,000 gallon underground cistern . Wastewater from showers , sinks and toilets goes into underground purifying tanks and then into the cistern . The collected water then irrigates the land surrounding the house . Surrounding flowers and shrubs native to the area enable the property to blend into the surrounding rural landscape .

Question: Why is rainwater being collected and moved into the cistern ?
Answer: The facility is trying to commercialize rain water .The facility is trying to be more wasteful with resources .None of the above choices .The facility is trying to be more environmentally responsible .