At a town hall Monday, Congresswoman Nanette Diaz Barragán alleged that people were paid to pose as residents to speak out in support of an embattled water district, marking a strange twist in the ongoing controversy over discolored water pouring out of taps in Compton and Willowbrook. The Sativa Los Angeles County Water District serves about 1,600 ratepayers in a half-mile area of Compton and Willowbrook. Residents have been complaining about brown-colored water with a foul odor.