The project is a redevelopment property within the Teledyne-Spectraphysics (T-S) plume with underlying groundwater probably impacted by the upgradient T-S source properties. The developer plans to construct the building wiht a vapor intrusion mitigation system (VIMS) and water barrier. Indoor air testing will be conducted to verify that the VIMS is working as designed.
he Site was formerly identified as two properties: 901 Thompson Place and 902 Thompson Place. These properties have been re-developed and now have a single address: 875 East Arques Avenue, Sunnyvale, California (see site location map). Land use in this area is primarily industrial and commercial. The 901-902 Thompson Place property was formerly occupied by Advanced Micro Devices, Inc. (AMD) to manufacture integrated semiconductor circuits between 1969 and 1992. Two below-ground acid neutralization system (ANS) tank vaults were located at the northern and southern ends of the 901 and 902 Thompson Place buildings, respectively. The ANS tanks for both 901 and 902 Thompson Place were constructed of coated concrete and were used to contain acidic industrial wastewater that was neutralized by adding caustics before discharging to the sanitary sewer. The wastewater also contained volatile organic compounds (VOCs). Soil and groundwater investigations were conducted by AMD in 1983 and 1984 to assess the impact of releases from both ANS structures. The results of these investigations indicated the presence of VOCs in soil and groundwater samples collected from the area near the ANS structures. Both ANSs and surrounding VOC-affected soils were removed between 1983 and 1992. Groundwater extraction and treatment was conducted from 1983 until December 2002. In situ biological treatment of VOCs in groundwater and saturated soil has been conducted since 2002 and is ongoing.
Soil impacted primarily by VOCs was excavated from source areas ANS-901 and ANS-902 over three separate excavation events. The relatively low VOC concentrations in monitoring wells within the uppermost water bearing zone (approximately 10 to 20 feet bgs), where TCE concentrations have generally been less than 100 g/L down-gradient of the former ANS-901 source area, suggest that no substantial source for TCE exists in unsaturated zone soil at the Site.
MILITARY CONSTRUCTION APPROPRIATIONS FOR FISCAL YEAR 2004 “HEARINGS BEFORE A SUBCOMMITTEE OF THE COMMITTEE ON APPROPRIATIONS UNITED STATES SENATE ONE HUNDRED EIGHTH CONGRESS FIRST SESSION ON H.R. 2559/S. 1357 AN ACT MAKING APPROPRIATIONS FOR MILITARY CONSTRUCTION FOR THE DEPARTMENT OF DEFENSE FOR THE FISCAL YEAR ENDING SEPTEMBER 30, 2004, AND FOR OTHER PURPOSES
Question. What is the Navy’s estimated cost to complete the cleanup of Hunters Point Shipyard? What is the budget for the current fiscal year and each of the next 2 fiscal years?
Answer. Cost to complete for fiscal year 2004 and out is $103.9 million. Budgets for current and next 2 fiscal years are $40.2 million in fiscal year 2003, $21.6 million in fiscal year 2004, and $1.9 million in fiscal year 2005. Budget estimates for fiscal year 2004 and fiscal year 2005 assume the receipt of land sale revenue to finance cleanup costs.
Question. Given the Navy’s recent discovery of more than 100 boxes of previously unknown Shipyard radiological documents, will the new radiological review and survey work come at the expense of other important, and budgeted, cleanup activities or will the Navy find other funds to pay for it?
Answer. Funding to pay for the expanded Historical Radiological Assessment (HRA) will not be taken from funds budgeted for cleanup at Hunters Point.
Question. Does the Navy see any remaining hurdles to moving forward with the Conveyance Agreement in the next 1–2 months?
Answer. The Navy is working diligently with the City of San Francisco to reach agreement on the Hunters Point Conveyance Agreement. The Navy’s goal is to achieve a mutually agreeable solution to the remaining two significant issues (utilities transition plan and finalization of the deeds) within the next 1 or 2 months.
Purposely contaminating hands to see what damage it would do and to figure out how to protect hands during radiation tests. Also this shows how they lay out radiation tests with the names of the mailing lists. At the time of publication this was secret information so they kept track of who got which report. Note “* number” is the citation number. La140 is Lanthanum 140 a radioactive isotope which is a daughter product of Barium 140 and due to its use this means that at Camp Stoneman had a hot cell on hand to mix the radioactive materials into the sand so workers deposited the radiation using lawn fertilizer spreaders onto roofs, yards and roads in what is now modern day Pittsburg California.
This article is the result of the staff being contaminated by spreading radioactive materials all over buildings, streets and roads of what is present day Pittsburg California and was the second Camp Stoneman radiation test published in 1958. Previous studies had been conducted using more damaging long lasting radiological isotopes and they wanted to make sure that they were cleaning up with sufficient means to protect themselves from the radiation. Pittsburg California Radiation Experiments covering half of the City
Health and Safety Technical Objective AW-5C – Technical Developments Branch M. B. Hawkins, Head Chemical Technology Division E. R. Tompkins, Head Scientific Director Commanding Officer and Director P. C. Tompkins Captain J. H. McQuilkin, USN U. S. NAVAL RADIOLOGICAL DEFENSE LABORATORY San Francisco 24, California
ABSTRACT Hands of field test personnel became radioactively con- taminated with (a) dust slurry synthetic fallouts containing La140 tracer, and (b) La140 in acid solution. Two protective creams and several cleaning materials were used in an attempt to reduce adherance of contaminant and to facilitate decontamination. The protective creams were not found to be advantageous. Three experimental cleaning solutions (isotonic neutral solution of a complexing agent plus a detergent and germicide; an isotonic saline solution at pH 2.0 plus detergent and germicide; and a 3% citric acid solution) were found to decontaminate skin more readily than soap and water. A waterless mechanic’s hand cleaner was found to clean hands with the same effectiveness as soap and water.