Presentation On the UGTA Strategy
   To ASME Peer Review Panel

Slid Show Index

Slide 1

Cover Page

State of Nevada
Division of Environmental
Protection - NDEP

Presentation by Paul Liebendorfer
Bureau of Federal Facilities

On the UGTA Strategy
ASME Peer Review Panel

June 13, 2001 - Las Vegas, Nevada

Slide 2

General Vicinity Map of Nevada and surrounding states.
     Click Map to Expand Image

State of Nevada

Slide 3

Vicinity Map of the Great Basin -- There are no major river drainages from the Great Basin
     Click Map to Expand Image

The Great Basin

Slide 4

There were 100 atmospheric tests and 828 underground tests conducted at the Nevada Tests Site (NTS)
Nuclear Testing In Nevada

  • 1950s Nuclear Testing Initiated at the Nevada Test Site (NTS) [Source Reference]
  • 100 Atmospheric Tests
  • 828 Underground Tests
  • One Underground Test at CNTA
  • One Underground Test at Shoal Site [Link]
  • Numerous Subcritical Surface Tests conducted on both NTS and Nellis Range

    *September 1992 Testing Ends

Slide 5

This above ground atmospheric nuclear test was conducted at the Nevada Test Site on May 25, 1953. Named "Grable" the nuclear bomb was fired from a 280 mm gun. The test was an "Airburst, it was weapons related and had an estimated yield range of 15 Kiloton
Expandable View -- 70KB

Slide 6

History of Groundwater Investigations at the NTS
Background -- History of Groundwater Investigations

DOE Program Evolution

  • Hydrologic Resource Management Program (HRMP)

  • Ground Water Characterization Program (GCP)

  • Underground Test Area Project (UGTA)

Slide 7

National Environmental Policy Act (NEPA) documents published on nuclear testing, research and development and environmental restoration at the NTS Test Site

National Environmental Policy Act (NEPA) Documentation
  • 1970, 1973 & 1975 AEC issues NTS/EIS Documents.

  • 1977 ERDA issues NTS Final EIS EIS discloses radiological contamination in the groundwater.

  • 1996 DOE issues Final NTS EIS The EIS discloses source term in groundwater 120 million curies

Slide 8

Topographical Map of the NTS.

The Map depicts the locations of Pahute Mesa, Yucca and Frenchman Flats and Area 25, otherwise knowen as Jackass Flats
     Click Map to Expand Image


Slide 9

Background History leading to the Environmental Restoration and Waste Management (ERWM) program at the NTS
Environmental Restoration
  • 1988 DOE/EPA initiates CERCLA evaluation of the NTS In the early 1990s EPA decides not to make any formal determinations related to NTS under Superfund.

  • 1989 DOE Tiger Teams identifies environmental program deficiencies at the NTS.

Slide 10

Background on the NTS Groundwater Characterization Program
Groundwater Characterization Program

  • Groundwater Characterization Program (GCP) formalized in 1989.

  • GCP developed a plan for 100 wells to characterize groundwater contamination beneath the NTS.

  • DOE decides to follow the CERCLA process for the groundwater investigation.

Go To Slides 11 to 20


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