Tag: VOLATILE ORGANIC COMPOUNDS (VOC)

ADVANCED MICRO DEVICES, INC. SUNNYVALE, CA

EPA Superfund site

Site History

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.

In 2007, Summit Commercial Properties, Inc. (Summit) the current owner of the Site, demolished the building and built a rental storage facility in its place. Continue reading “ADVANCED MICRO DEVICES, INC. SUNNYVALE, CA” →

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Menlo Park – Facebook Headquarters resides on the TE CONNECTIVITY (CAD009125527) HAZARDOUS WASTE FACILITY

Site History

Envirostor (State of California) page

Facebook built it’s headquarters on a hazardous waste management site

Tyco, previously known as Raychem is an electronic manufacturer. Raychem had a hazardous waste facility permit and closed its hazardous waste management units. DTSC has been overseeing corrective action at Tyco under a corrective action consent agreement. The main contaminant is PCBs. Soil removal was completed to industrial levels. LUC has been entered into and filed with County. Tyco is currently conducting long term groundwater monitoring.

Google Map

Deed Restriction / Land Use Covenant:

[VIEW COVENANT]   1/19/2007  For some strange reason, the state website does not list the site management requirements but if you click on the View Covenant you can read what is required, this is a deed restriction.

1.2. Raychem Corporation, the Covenantor’s predecessor, manufactured hightechnology plastic and electrical insulation products. It also engaged in management of hazardous waste pursuant to a hazardous waste facility permit issued by the California Department of Health Services, the predecessor agency of the Department. The hazardous waste facility permit allowed Raychem Corporation to operate a wastewater treatment system, a hazardous waste storage yard and a potassium ferrocyanide tank farm. On January 9, 1997, the Department approved the closure activities of the aboveground portions of these hazardous waste management units. Raychem Corporation proceeded with corrective action under the Department’s oversight to address the release of hazardous waste in soil and groundwater. Raychem merged with the Covenantor in 1999. The Covenantor has conducted corrective action at the Property under the Department’s oversight, including removal of contaminated soil, installation of an engineered multi-media cap over an area of subsurface contamination and groundwater monitoring. Continue reading “Menlo Park – Facebook Headquarters resides on the TE CONNECTIVITY (CAD009125527) HAZARDOUS WASTE FACILITY” →

Menlo Park – Facebook Building #23 TYCO ELECTRONICS CORPORATION (80001600)

Site History

Envirostor (State of California) page for: TYCO ELECTRONICS CORPORATION (80001600)

300 CONSTITUTION DR
MENLO PARK, CA 940250000

Google Map

“Tyco, previously known as Raychem, is an electronics manufacturer. Raychem had a hazardous waste facility permit and closed its hazardous waste management units at this site. DTSC has been overseeing corrective action at Tyco under a corrective action consent agreement. The main contaminant is PCBs. Soil removal was completed to industrial levels. A land use covenant has been entered into and filed with County. Tyco is currently conducting long term groundwater monitoring.”

Deed Restriction / Land Use Covenant:

Envirostor (State of California) Land Use Restriction Page

Land Use Covenant Amendment    8/6/2012  

  • ACTIVITIES PROHIBITED WHICH DISTURB THE REMEDY AND MONITORING SYSTEMS WITHOUT APPROVAL
  • DAY CARE CENTER PROHIBITED
  • HOSPITAL USE PROHIBITED
  • LAND USE COVENANT
  • MAINTAIN MONITORING OF GROUNDWATER
  • NO EXCAVATION OF CONTAMINATED SOILS WITHOUT AGENCY REVIEW AND APPROVAL
  • NO EXCAVATION OR ACTIVITIES WHICH DISTURB THE SOIL BELOW A SPECIFIED DEPTH (SEE COVENANT FOR DEPTH) WITHOUT AGENCY REVIEW AND APPROVAL OF A SOIL MANAGEMENT PLAN
  • NO GROUNDWATER EXTRACTION AT ANY DEPTH WITHOUT APPROVAL
  • NO OIL OR GAS EXTRACTION AT ANY DEPTH
  • NOTIFY DAMAGES TO REMEDY AND MONITORING SYSTEMS UPON DISCOVERY
  • NOTIFY PRIOR TO SUBSURFACE WORK
  • PERFORM H&S PLAN PRIOR TO SUBSURFACE WORK
  • PUBLIC OR PRIVATE SCHOOL FOR PERSONS UNDER 21 PROHIBITED
  • RAISING OF FOOD PROHIBITED
  • RESIDENCE USE PROHIBITED

Institutional Controls Estab-Goverment Control (CA772GC) 1/19/2007

  • ACTIVITIES PROHIBITED WHICH DISTURB THE REMEDY AND MONITORING SYSTEMS WITHOUT APPROVAL
  • DAY CARE CENTER PROHIBITED
  • HOSPITAL USE PROHIBITED
  • LAND USE COVENANT
  • MAINTAIN MONITORING OF GROUNDWATER
  • NO EXCAVATION OF CONTAMINATED SOILS WITHOUT AGENCY REVIEW AND APPROVAL
  • NO EXCAVATION OR ACTIVITIES WHICH DISTURB THE SOIL BELOW A SPECIFIED DEPTH (SEE COVENANT FOR DEPTH) WITHOUT AGENCY REVIEW AND APPROVAL OF A SOIL MANAGEMENT PLAN
  • NO GROUNDWATER EXTRACTION AT ANY DEPTH WITHOUT APPROVAL
  • NO OIL OR GAS EXTRACTION AT ANY DEPTH
  • NOTIFY AFTER CHANGE OF PROPERTY OWNER
  • NOTIFY DAMAGES TO REMEDY AND MONITORING SYSTEMS UPON DISCOVERY
  • NOTIFY PRIOR TO CHANGE IN LAND USE
  • NOTIFY PRIOR TO DEVELOPMENT
  • NOTIFY PRIOR TO SUBSURFACE WORK
  • ONLY EXTRACTION OF GROUNDWATER FOR SITE REMEDIATION PERMITTED
  • PERFORM H&S PLAN PRIOR TO SUBSURFACE WORK
  • PUBLIC OR PRIVATE SCHOOL FOR PERSONS UNDER 21 PROHIBITED
  • RAISING OF FOOD PROHIBITED
  • RESIDENCE USE PROHIBITED

POTENTIAL CONTAMINANTS OF CONCERN

As a result of historical operations at the Property, certain hazardous
materials, including volatile organic compounds, semi-volatile organic compounds, PCBs, dioxins and dibenzofurans were released into the soil and groundwater at the Property.

Envirostor disclaimer

SF – NAVAL STATION TREASURE ISLAND (38370044)

Site History

Envirostor (State of California) page 550 ACRES; BETWEEN SAN FRANCISCO & OAKLAND, SAN FRANCISCO, CA 94130

Google Map

“Naval Station Treasure Island (NSTI) is located in San Francisco Bay (Bay), midway between San Francisco and Oakland, California. The facility consists of two contiguous islands: Treasure Island (TI), which is approximately 550 acres, and Yerba Buena Island (YBI), which is approximately 550 acres. Stormwater outfalls and offshore sediments (Site 13) encompass approximately 563 additional acres. Treasure Island is a manmade island that is anchored to a natural rock island (YBI), that was constructed of materials dredged from the Bay in 1936. The island was developed to be the site of the 1939 Golden Gate International Exposition. In response to a Navy request, in 1941, the City of San Francisco leased TI to the Navy for the duration of World War II. After the war, the city agreed to transfer the deed for TI to the Navy in exchange for government-owned land south of San Francisco where the San Francisco International Airport was later built. TI provided administrative and support facilities for processing Pacific-bound naval personnel, and for the administrative operations of other Navy, Marine Reserves, and non-military Federal activities. Military activities at YBI date back to 1866. In 1993, NSTI was designated for closure under the Base Realignment and Closure Act (BRAC) of 1990. The base was closed on September 30, 1997, and is currently in the transfer process.

In April 1988, a Preliminary Assessment/Site Inspection (PA/SI) Report of the facility was prepared for the Naval Energy and Environmental Support Activity (NEESA). Based on information from historical records, aerial photos, agency contacts, field inspection, and personnel interviews, a total of 20 areas were identified with potential contamination and for additional site investigation. These identified acres included: a medical clinic; a former foundry; a boiler plant; an old bunker; stormwater outfalls; a refuse transfer area; a car hobby shop; an oil recovery waste facility; a seaplane maintenance shop; an exchange service station; a hydraulic training school; a painting shop; two storage shed areas; a landfill; and fire training fuel tank releases. During subsequent investigations additional sites were identified that brought the total number of sites to 33. Contaminants include: low-level radioactive waste, polychlorinated biphenyls (PCBs), dioxins, pesticides, paints, waste oil and fuel, solvents, asbestos, acids, and heavy metals.

Since closure of the base in 1997, nearly all of TI has been leased to the City of San Francisco for a variety of uses including movie production, an elementary school and daycare center, approximately 750 rental housing units, and an Olympic sailing school at Clipper Cove. In addition, 35 acres were transferred to the Federal Department of Labor for the establishment of a job corps center on TI. Portions of YBI were also transferred to the State to facilitate the construction of the new East Bay Bridge. The remainder of the land on YBI is comprised of housing that is controlled by the City of San Francisco and a U.S. Coast Guard Station that occupies the southern half of the island.

EnviroStor includes separate profiles for 13 of the 33 sites that provide the current, ongoing and projected activities for each site. The previous reports and historical documents for these 13 sites were retained in this basewide profile. The 13 sites are:
Site 6 – Fire Training School (4.54 acres, EnviroStor # 60001091)
Site 8 – Army Point Sludge Disposal Area (3.12 acres, EnviroStor # 60001161)
Site 11 – YBI Landfill (2.88 acres, EnviroStor # 60001162)
Site 12 – Old Bunker Area (93.2 acres, EnviroStor # 60001092)
Site 21 – Vessel Waste Oil Recovery Area (2 acres, EnviroStor # 60001093)
Site 24 – Dry Cleaning Facility (20.46 acres, EnviroStor # 60001094)
Site 27 – Clipper Cove (19.55 acres, EnviroStor # 60001095)
Site 28 – West Side On/Off Ramp (10.53 acres, EnviroStor # 60001096)
Site 29 – East Side On/Off Ramp (15.13 acres, EnviroStor # 60001164)
Site 30 – Day Care Center (1.46 acres, EnviroStor # 60001097)
Site 31 – Former South Storage Yard (2.02 acres, EnviroStor # 60001098)
Site 32 – Former Training and Storage Area (2.6 acres, EnviroStor # 60001099)
Site 33 – Water Line Replacement Area (4.89 acres, EnviroStor # 60001100)

Updated 09/07/2018 – KAW”

Deed Restriction / Land Use Covenant:

Envirostor (State of California) Land Use Restrictions Page

YBI Covenant to Restrict Use of Property (CRUP)

Note this Land use Restriction by the State of California only applies to Yorba Buena Island, while the rest of the base is under the EPA Superfund Site.

  • ACTIVITIES PROHIBITED WHICH DISTURB THE REMEDIATION AND MONITORING SYSTEMS WITHOUT APPROVAL
  • ANNUAL INSPECTION AND/OR REPORT REQUIRED
  • DAY CARE CENTER PROHIBITED
  • ELDER CARE CENTER PROHIBITED
  • HOSPITAL USE PROHIBITED
  • NO DRILLING FOR DRINKING WATER, OIL OR GAS WITHOUT APPROVAL
  • NO EXCAVATION OR ACTIVITIES WHICH DISTURB THE SOIL AT ANY DEPTH WITHOUT APPROVAL OF A SOIL MANAGEMENT PLAN AND/OR HEALTH AND SAFETY PLAN
  • NOTIFY DAMAGES TO REMEDY AND MONITORING SYSTEMS NO LATER THAN 10 DAYS UPON DISCOVERY
  • NOTIFY DETAILS OF COMPLETION OF ANY REPAIRS OF DAMAGES TO REMEDY AND MONITORING SYSTEMS NO LATER THAN 30 DAYS AFTER REPAIR.

POTENTIAL CONTAMINANTS OF CONCERN

DIOXIN (AS 2,3,7,8-TCDD TEQ)
LEAD
OTHER
PETROLEUM
POLYCHLORINATED BIPHENYLS (PCBS)
POLYFLUORINATED ALKYLATED SUBSTANCES (PFAS)
POLYNUCLEAR AROMATIC HYDROCARBONS (PAHS)
RADIOACTIVE ISOTOPES
UNCATEGORIZED
VOLATILE ORGANICS (8260B VOCS)

Envirostor disclaimer

NPL means EPA National Priorities List (Superfund)

TEXAS INSTRUMENTS – FORMER NATIONAL SEMI CONDUCTOR (SL720841216) EPA Superfund Site Santa Clara California

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 indicate daycare centers. https://www.nbcbayarea.com/on-air/as-seen-on/toxic-plumes_-the-dark-side-of-silicon-valley_bay-area/87485/

EPA Superfund Site Link 2900 SEMICONDUCTOR DRIVE SANTA CLARA, CA 95052

EPA Superfund Site : “The National Semiconductor Corporation (National Semiconductor) previously manufactured electronic equipment at this 50-acre site. Underground storage tanks, sumps, and pipes are the suspected sources for contaminated groundwater and soil in Sunnyvale underneath the site. Beginning in 1982, National Semiconductor closed and removed its leaking tanks and equipment, instituted a groundwater pump and treat system, and removed contaminated soil from selected areas of the facility. The contaminants of concern are primarily chlorinated organic solvents, including trichloloethene (TCE), which, along with other nearby National Priority List (NPL) sites including the Monolithic Memories Superfund Site, have contaminated a common groundwater area. Although these nearby sites are listed separately on the NPL, the cleanup activities at some of the sites are being coordinated as part of an area-wide cleanup approach.”

State of California Geotracker Site: “National Semiconductor Corporation (NSC) is located at 2900 Semiconductor Drive, Santa Clara. The NSC site is bordered by Central Expressway to the north, Kifer Road to the south, Lawrence Expressway to the east, and industrial/commercial buildings to the west. The site encompasses approximately 60 acres. Continue reading “TEXAS INSTRUMENTS – FORMER NATIONAL SEMI CONDUCTOR (SL720841216) EPA Superfund Site Santa Clara California” →

Apple Stewart 1 on 3 Superfund sites located under 4 schools and 2 daycare centers and over 100 residences in Sunnyvale California

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 https://www.nbcbayarea.com/on-air/as-seen-on/toxic-plumes_-the-dark-side-of-silicon-valley_bay-area/87485/

Google Map Reference

Apple In Sunnyvale and there are four schools and two daycares on this site which are against the rules for TCE exposure protocol which is to not have any children under the age of 21 to be exposed to these chemicals, no daycare, no adult care. This site has housing on it.

Apple’s Stewart 1 Building is TRW Nuclear Site, Nuclear Worker Site

EPA Superfund Page:

The TRW Microwave, Inc. (Building 825) site is one of three sites contributing contamination to a groundwater plume in Sunnyvale, California. Former microwave manufacturing and semiconductor processing activities contaminated groundwater and soil with volatile organic compounds (VOCs).

The former TRW Microwave Superfund Site (TRW Site), part of the “Triple Site” in Sunnyvale, California, is located at 825 Stewart Drive and neighbors multiple other sites, including: the Advanced Micro Devices (AMD) Buildings 901/902 Thompson Place Superfund Site (AMD 901/902 Site), the AMD 915 De Guigne Drive Superfund Site (AMD 915 Site), the Philips Semiconductors Site (Philips Site; formerly Signetics Inc.), which includes the properties at 811 Arques Avenue, 440 North Wolfe Road, and facilities along Stewart Drive, and the Mohawk Laboratories Site. A groundwater plume composed of volatile organic compounds (VOCs), including trichloroethene (TCE), extends from these sites more than a mile north in Sunnyvale to beyond Highway 101.

The TRW Site, together with three other operable units (OUs), was covered by a 1991 Record of Decision for the Triple Site, all located in Sunnyvale. The four OUs for the Triple Site are as follows:

(1) The AMD 901/902 Site OU;
(2) The Philips Site OU;
(3) The TRW Site OU; and
(4) The Companies Offsite Operable Unit (OOU), a commingled plume of contaminants which originated from the other three operable units (and has contributions from other sites in the area).

At the time of adoption of the 1991 Record of Decision, the OOU was defined as a 100-acre area, downgradient and north of the Triple Site in an area bounded by the Sunnyvale East Drainage Channel on the west and Santa Paula Ave. on the east, and as the area inside a 5 micrograms per liter (µg/L) contour for trichloroethene (TCE) in groundwater. Over 400 residences and at least 4 schools are present within the OOU.

The TRW Site was occupied by Aertech Industries from 1968 until it was sold to TRW Inc (TRW) in 1974. In 1987, TRW sold the facility to FEI Microwave, Inc. In 1993, FEI Microwave stopped production and in 1995 the site was acquired by Stewart Associates and leased to research and development companies until 2001. The exterior of the building was remodeled between 2001 and 2003, including demolition of part of the existing structure and construction of a new two-story building. In December 2002, TRW merged with Northrop Grumman. In 2004, the property was purchased by Pacific Landmark, and then by Hines in 2014 and then GI Partners, the current owner, in 2016. During these changes in site ownership, TRW and then Northrop Grumman retained responsibility for site cleanup.

The primary activity at the TRW Site was assembling and testing microwave components until semiconductor processing began in 1970. Primarily solvents and small quantities of acids were used in the assembly areas for semiconductors. Solvents, acids, and heavy metals were used in the fabrication areas and plating shop. The paint shop used paints and solvents.

Acid rinse water generated by the assembly processes was neutralized on-site and discharged to the City of Sunnyvale sewer system. An underground ammonia gas acid neutralization system was installed when the facility first opened. Floor drains and acid sinks in the plating shop were connected to buried plumbing that carried acid waste to the neutralization system. This system was closed in 1986, and the underground piping was sealed. The system was replaced with three aboveground tanks. Spent solvents were stored in one of four on-site underground tanks. After 1982, solvents were stored in drums and transported off-site.

Trw Microwave, Inc (Building 825) from Toxic Sites website explains the TCE contamination goes up past the highway.