Superfund Information Systems: Site Profile

Superfund Site:

CHEVRON QUESTA MINE
QUESTA, NM

Operable Units

During cleanup, a site can be divided into a number of distinct areas depending on its complexity. These areas, called operable units (OUs), may address geographic areas, specific problems, or areas where a specific action is required. Examples of typical operable units include construction of a groundwater pump and treatment system or construction of a cap over a landfill.

OU ID Name Types of Contaminants
Present at the Time of
ROD Completion
Cleanup Technologies Selected
in the Decision Document
00 SITEWIDE
01 SOURCE
  • ALUMINUM
  • ANTIMONY
  • AROCLOR 1248
  • AROCLOR 1254
  • AROCLOR 1260
  • ARSENIC
  • BERYLLIUM
  • CADMIUM
  • CHROMIUM, TOTAL
  • COBALT
  • COPPER
  • FLUORIDE
  • IRON
  • LEAD
  • MANGANESE
  • MOLYBDENUM
  • NICKEL
  • NITRATE
  • NITRATE (AS NO3)
  • SULFATE
  • TOTAL DISSOLVED SOLIDS (TDS)
  • URANIUM
  • VANADIUM
  • ZINC
  • Chemical Treatment (other, NOS, insitu)
  • Containment (other, NOS, onsite)
  • Cover (evapotranspiration)
  • Cover (soil)
  • Dewatering
  • Discharge (other, NOS)
  • Discharge (surface water/NPDES discharge)
  • Disposal (offsite)
  • Drainage/Erosion Control (other, NOS)
  • Dredging
  • Excavation
  • Extraction (recovery/vertical well)
  • Hydraulic Control (containment)
  • Institutional Controls
  • Ion Exchange (P&T, exsitu)
  • Leachate Control
  • Membrane Filtration (reverse osmosis, P&T, exsitu)
  • Monitoring
  • Neutralization (P&T, exsitu)
  • Operations & Maintenance (O&M)
  • Revegetation
  • Slope Stabilization
  • Soil Amendments
  • Solidification/Stabilization (exsitu, onsite)
  • Treatment (other, NOS, exsitu, onsite)
  • Treatment (other, NOS, offsite)
  • Water Supply (temporary replacement, other, NOS)
02 REMOVAL 01

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