Silicon Valley Toxic Waste Sites Map

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Silicon Valley Composite image of GeoTracker map showing toxic waste sites. Geotracker uses Google images.


Apple Tritium Shipment sent 19050 Pruneridge Ave Cupertino

I was about to type up a report on Fairchild Semiconductors in Mountain View using Tritium as a light source for their LCD displays at what is now a Google Quad building on 434 Ellis Street, Mountain View when I came upon this report showing Tritium being delivered to Apple at 19050 Pruneridge Ave Cupertino. 10.5 curies of Tritium which is a radioactive isotope of hydrogen that has a half life of 12.32 Years. This is an invoice for 4-01-2016 to 6-30-2016 and the cover sheet for the invoice is below. Source is Document at Nuclear Regulatory Commission website

Google Map link
Document at Nuclear Regulatory Commission website
Document at Nuclear Regulatory Commission website

Apple is located on GE Intersil Superfund site that received radiological isotope Kr 85 from the DOE

“List of DOE Radioisotope Customers w/Summary of Radioisotope Shipments,FY85.”
D. A. Baker
Prepared for the U. S. Department of Energy under Contract DE-AC06-76RLO 1830

Page 2.4 Item number 53.
G. E. Intersil Inc.
10710 North Tantau Avenue
Cupertino, CA 95014

Given that the Superfund site is the G. E. Intersil site, this associates it with the San Jose G. E. nuclear reactor assembly plant where they were assembling portable nuclear reactors for the US Army, a project started in the mid 1950s when radiological contamination levels were very relaxed and when they were strengthened in 1959 to 1/3 of what they were before, so all of these reactors were too hot for safe use. The entire program was scrapped by 1965. But this program required a large amount of new electronics and this brought about the beginnings of Silicon Valley.

Unfortunately for the people of San Jose they were dumping waste directly into the sewer system using 1955 standards which are nuclear accidents today. That is the problem with nuclear radiation, the clean up standards of the past, including the most recent past have been less and less radiation so that a site cleaned up 25 years ago is an accident today!

These were portable nuclear reactors that you could put on a truck, a transport plane, a ship or a train and bring it to a military site that had a deep pool with all of the necessary hook ups to set up a nuclear reactor to power the base or for colleges and universities. These reactors had no meaningful shields and were a serious radiological hazard to modern specifications.

San Jose CA – GE Nuclear Fuel Processing Facility at The Plant Shopping Center

There were several other portable nuclear reactor plants in the Bay Area, two I featured in this article Two nuclear reactors sites, 369 Whisman Road Mountainview (now Google) and San Ramon CA where the EPA should also look into assessing the damage to the environment and the people who now live within range of those reactor sites. The 369 Whisman Road reactor site had a high curb surrounding the building to contain the radioactive waste!

The EPA has regulations on conducting radiological surveys for sites and basically everything within 200 feet of a site is considered on the site, that goes for chemical contamination as well as radiological. DTSC has interpreted this to mean the property lines of toxic waste sites but the EPA has different rules. Then there is the distance from the contamination to a quarter of a mile is considered a near neighbor and the distance from a quarter of a mile to a mile is also a near neighbor but with a different set of calculations. The danger is evaluated based on the population near a site so in the case of Apple, this could be a big problem for them. How many people work in their Wheel?

The Federal Law, 40 CFR Appendix A to Part 300 – The Hazard Ranking System which is used to determine if a site is subject to Superfund status, the range of contamination goes out to various distances from the exact contamination site.

It depends on what happened to the Kr 85 which is a Byproduct Material, meaning it came out of a nuclear reactor and cannot be dumped in low level radiation facilities but would have to be disposed of most likely in the Nevada Test Site.

In order to use an isotope like this, the facility would require a hot cell which is a device or room to store radiological isotopes usually with mechanical hands to remove the isotope from the container and use it in whatever industrial process GE was using at the time and the necessary Geiger counter device to measure the Beta radiation from this isotope. It has a half life of 10 years so its still hot. Some hot cells are portable and look like aquariums or those isolated rooms with hands you see in movies or TV shows.

I outline the distances using San Francisco as an example showing the ranges of contamination that can result from Chemical, Biological and Radiological contamination in this article:
“Downtown San Francisco within Contamination Range of Treasure Island Atomic, Biological and Chemical Warfare training sites”

If the radiation was used on a device that has since decomposed in the soil, then you have the larger ranges of water and air contamination that can go out 4 miles from the site.

The Question is, does the EPA know that the isotope was used on the site. Given the other sites in the Bay Area I would give my opinion as to say no, but this will have to be looked into.

If the Nuclear Regulatory Commission had done its job, then there would be a set of inspections and a series of surveys to confirm the radiological isotopes were disposed of property and how they were used.

Cupertino – Apple Headquarters and Kaiser Pernamente on the INTERSIL (DTKM) (SL720641214) EPA Superfund Tri-Site

Groundwater Contamination Map, Toxic Plumes Map Source: The Chemical Legacy of Old Silicon Valley, NBC Bay Area, Map Editor Scott Pham 2019 The red dots represent Daycare centers 2019


Apple Computer, Kaiser Permanente Child/ado Psy and Kaiser Permanente – CDRP (Chemical dependency recovery program) are located on the EPA Superfund Tri-Site where there are toxic chemicals in the ground that emerge as toxic vapor and the deed restrictions are present to stop organizations from having hospital facilities on the site. Strange thing is Kaiser Permanente operates two facilities on the site. So I would imagine that each patient must be signing a waver when they visit the facility?

I know Apple does not have daycare at their facility they would not be stupid enough to do such a thing. I find it strange that people are willing to work on a toxic waste site. But I guess they know what they are doing. Surely Apple would inform everyone who has access to the site, including delivery drivers as they are required by the deed restrictions?

Google Map

“The Intersil/Siemens Superfund Site includes the following three areas: 1) the former Intersil facility, located at 10900 North Tantau Avenue, Cupertino; 2) the former Siemens facility, located at 10950 North Tantau Avenue, Cupertino; and 3) the Off-Site Study Area, located north of and hydraulically downgradient from the two former facilities in Sunnyvale. Investigations conducted in the 1980s as part of the California Regional Water Quality Control Board’s (Regional Board’s) underground storage tank (UST) leak detection program found volatile organic compounds (VOCs) in soil on- and off-site. The primary contaminant of concern at the site is the VOC, trichloroethene (TCE).

• Former Intersil Facility – Intersil, Inc. operated at the property from 1968 to 1988 and initiated investigations in 1983. The potential sources of contamination were removed between 1986 and 1988, including waste neutralization systems, a waste solvent tank, and an above-ground chemical and hazardous waste storage area.

• Former Siemens Facility – Litronix and its successor, Siemens Microelectronics, Inc., operated at the property from 1970 to the mid-1990s. Until 1982, liquid wastes were stored in five USTs that were removed in 1982. From 1982 until cessation of operations, liquid wastes previously stored in USTs were temporarily placed in the hazardous materials storage area for off-site disposal or recycling. Investigations began in 1982 after the discovery of contaminants during the removal of the USTs.

Drinking water for Sunnyvale and Cupertino is not affected by this contamination. Calabazas Creek, an intermittent stream, is located approximately 1,500 feet east of the site. “

Geotracker State of California site:



Deed Restrictions:


The Chemical Legacy of Old Silicon Valley showing the Toxic Plumes, areas of groundwater contamination in Silicon Valley

NBC Bay Area Video on the Toxic waste sites all over Silicon Valley. They had an interactive map but they took it down from their website.

Original article: NBC map showing the hundreds of sites on a map so you can see if you are affected by the pollution of Silicon Valley. From this map you can see that Apple and Google Headquarters are located on 2 superfund sites each where the polution is TCE Trichloroethylene where there are restrictions that require no person under the age of 21 can occupy any building built on the properties.

There is Kaiser Permanente building for Children and Adult psychiatric care built right on top of the street address of three sites and two of them are under Apple which is across the street. Note the tabs to show the daycare facilities that are on the purple areas that are mapped out to show the pollution.

The Map Article was taken down by NBC Bay Area.