The clean-up is being conducted according to and in compliance with all local, state and federal laws. The Nevada Division of Environmental Protection has primary oversight responsibility with Clark County and several agencies also involved.
The Muddy Creek formation underlies the Qa. The Muddy Creek formation underlies much of the Las Vegas Valley and is more than 2,000 feet thick in places. The upper portion beneath the site is referred to as TMCf. The soil of the TMCf underlying the site is typically fine-grained (sandy silt and clay silt), although layers with increased sand content are also sporadically encountered.
The new master planned community will feature 526 acres of parks and open space adjacent to the Las Vegas Wash, the River Mountain Loop Trails and the Henderson Birding Preserve offering residents a multitude of outdoor recreational opportunities.
Approximately 400 acres of the 2,200 acres on the property require remediation and clean-up. There has never been any industrial activity on the remainder of the site, most of which has remained virgin desert. The evaporation ponds are now inactive. The soil underlying the ponds will be excavated and transported to a lined and monitored Corrective Action Management Unit(CAMU), off site. No excavated soils will be disposed of on-site.
The site's soil will be analyzed before and after the remediation. Each home site will be retested again before any residential construction begins.