"Residents and farmers say contractors have tapped border aquifers that threaten water supply for those nearby""Construction crews building a border wall in New Mexico were ordered to stop drilling new wells after ranchers said that pumping groundwater to produce concrete could threaten their livestock amid a severe drought. The order comes as crews across the southern border race to complete one of Donald Trump’s key domestic priorities – barriers that span four states and received over $46bn in federal funding. Controversies have sprouted up in Texas and California, and border-town residents and environmentalists have reported a wide variety of issues with construction. At a public meeting in July, ranchers said they were noticing unmonitored tapping of border aquifers that threatened the water for those nearby. I mean, it could potentially put some people out of business, us included,” said Russell Johnson, a cattle rancher whose property runs along the border."