Studies indicate nutrient levels in the coastal waters surrounding the Florida Keys are increasing and sewage disposal is suspected to be a source of nitrogen that is adversely affecting the normally oligotrophic marine waters. Typical methods of wastewater disposal include large municipal wastewater treatment plants, smaller “package” wastewater treatment plants, and onsite sewage treatment an...

This report describes the results of a comprehensive surficial geologic mapping effort undertaken to support the development of a series of relative flood hazard maps of the Ivanpah Valley area, Clark County, Nevada. The study area spans approximately 1030 km2 (398 mi2) and is defined by all of three and part of one internally drained basins between Las Vegas and Primm, Nevada. The proximity of...