Potential Release Sites (PRSs) Planned Remediation End State

(Source: The Proposed Risk-Based End-State Vision for Completion of the EM Cleanup Mission at Los Alamos National Laboratory, LA-UR-03-8254, November 3, 2003.)

 

Watershed	Current Description	Contamination	End State
Los Alamos/Pueblo	63 potential release sites with residual contamination from surface waste disposal, explosives testing, wastewater	Rad, Inorganic, PCBs	Removal/Based on residential use soil cleanup levels/Transfer to LA County or Tribal governments
	136 potential release sites with residual contamination from surface waste disposal, explosives testing, wastewater	Rad, Inorganic, Organic, PCBs	Removal/Cap in place/Based on industrial and/or recreational use soil cleanup levels for NNSA lands/Monitoring systems installed/Transfer to NNSA
Mortandad	4 potential release sites attributed primarily to discharges of LANL wastewaters, which have occurred since 1951 and possibly as early as 1943, but also from runoff from mesa tops with LANL operations	Perchlorate, Nitrate, Rad, Inorganic, PCBs	Removal/Based on residential use soil cleanup levels/Transfer to LA County or Tribal governments
	169 potential release sites attributed primarily to discharges of LANL wastewaters, which have occurred since 1951 and possibly as early as 1943, but also from runoff from mesa tops with LANL operations	Rad, Inorganic, Organic, PCBs	Cap in place/Removal/Based on Industrial and/or Recreational levels/Monitoring systems installed/Transfer ownership to NNSA
Pajarito	172 potential release sites associated with secondary contamination from runoff from mesa-top operations	Rad, HE, Organic, Inorganic, Perchlorate	Cap in place/Removal/Based on Industrial and/or Recreational levels/Monitoring systems installed/Transfer ownership to NNSA
Sandia	76 potential release sites primarily associated with industrial and sanitary wastewaters and power plant cooling towers	Rad, Inorganic, Organic, PCBs	Removal/Based on industrial and/or recreational use soil cleanup levels/Transfer ownership to NNSA
Water/Canon de Valle	133 potential release sites primarily contaminated with debris from firing sites	Rad, Inorganic, HE	Removal/Based on industrial and/or recreational use soil cleanup levels/Transfer ownership to NNSA
Ancho	33 potential release sites primarily contaminated with debris from firing sites	Rad, Inorganic, HE	Removal/Based on industrial and/or recreational use soil cleanup levels/Transfer ownership to NNSA
Chaquehui	53 potential release sites associated with former firing sites and tritium site operations	Rad, Inorganic, HE	Removal/Based on industrial and/or recreational use soil cleanup levels/Transfer ownership to NNSA
Frijoles	15 debris areas located in Bandelier National Monument	Rad, Inorganic	D&D/Based on recreational use soil cleanup levels/ownership NPS, NFS