2012 Update to the Site Discharge Pollution Prevention Plan (Rev. 1): Los Alamos/Pueblo Watershed (Vol. 1)
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
One historical industrial activity area is associated with R001, R-SMA-0.5: Site C-00-020. Area of Concern (AOC) C-00-020 is a suspected mortar impact area located along the north valley wall of Rendija Canyon on General Services Administration (GSA) and U.S. Forest Service (USFS) land. The 30-acre site also includes a tributary of Rendija Canyon. Most of the site lies within the Santa Fe National Forest, except for a small area on the southeastern edge that is private property. AOC C-00-020 was suspected to be a former mortar-impact area because of a “U.S. Property—No Trespassing” sign and a nearly illegible bilingual sign posted in the area. The signs no longer remain. Extensive archival searches have revealed no documentation regarding the use of this site as a munitions impact area. In addition, no field evidence of operations (e.g., munitions debris [MD], munitions and explosives of concern [MEC], unexploded ordnance [UXO], or impact scars) has ever been found at AOC C-00-020. Resource Conservation and Recovery Act (RCRA) facility investigation (RFI) activities conducted in 1993 included conducting an ordnance sweep followed by a geophysical sweep. No ordnance, MD, MEC, or UXO was located. In addition, no ordnance was found during the 2007 investigation or during the 2009 ordnance survey. The site is located within an area burned by the 2000 Cerro Grande fire. The stream channel that runs through the center of the site has been widened by flooding. Currently, there are burned and live trees on the steep slopes next to the stream. Ordnance surveys at the site resulted in no findings except for scrap metal such as bailing wire. The complete absence of ordnance and explosives waste (OEW) confirmed that the site was never used as an ordnance-impact area. In accordance with the approved investigation work plan, no further investigation was conducted at AOC C-00-020. The New Mexico Environment Department (NMED) concurred with the conclusion that no additional ordnance surveys need to be conducted at this site and issued a corrective action complete without controls for AOC C-00-020 on May 16, 2012. No industrial materials were historically managed at this Site; therefore, no potential contaminants are associated with the Site.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA)
- DOE Contract Number:
- AC52-06NA25396
- OSTI ID:
- 1178318
- Report Number(s):
- LA-UR-13-22616
- Country of Publication:
- United States
- Language:
- English
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