|
HWAAP-I02
110 GROUP OPEN BURNING PIT
SITE DESCRIPTION
This site originally included HWAAP-G02 and G03. Those two sub-sites have been removed from the AEDB-R database and all future work will refer to site  HWAAP-I02. HWAAP-G02 and G03 were incorporated into I02 instead of listing 3 separate sites because these 3 sites are contiguous with one another. HWAAP-I02 is a disposal area (approximately 4 acres) that includes pits for wastewater treatment and open trenches used for open burn and disposal of ordnance. Visible staining of explosives is present on the surface soils. The area appears to have been in operation from the early to late 1950's based on aerial photographs, however, use and history of the site is not well documented. Previous investigations (1988, 1989 & 1992) included magnetometry surveys and exploration pits. Soil samples collected from these pits contained elevated concentrations of explosives and metals. Four monitoring wells were installed to assess the impact to groundwater above state of Nevada action levels. Four groundwater monitoring wells were installed to assess the impact to groundwater. Concentrations of explosives in groundwater exceeded 70 ug/L with elevated concentrations of metals. Site investigation in 1994 included 1.4 acres of 10-ft spacing ground penetrating radar, within a 4 acre area of reconnaissance airborne ground penetrating radar to delineate pits and trenches. Groundwater was first sampled in 1988, and long-term groundwater monitoring was started in 1997.
PROPOSED PLAN
Investigation of the explosive-contaminated berm soil and lead-contaminated burn pits was conducted in 2008. Additonal investigation of burn pits was conducted in July 2010. Results of the investigation have not been submitted as of September 2010.
 Previous Site Summary  Next Site Summary
IRP Home Page
Table of Contents -- IRP Site Summaries
NDEP - Site Map
|
