GOOGLE – 1400 NORTH SHORELINE BOULEVARD (T10000006049)

Microsoft Word – Memo_WhiteStripes_sanitary_sewer p 12



Microsoft Word – Memo_WhiteStripes_sanitary_sewer p 10
Microsoft Word – Memo_WhiteStripes_sanitary_sewer p 11

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.

Envirostor (State of California)

Geotracker Map

Google Map

POTENTIAL CONTAMINANTS OF CONCERN

DICHLOROETHENE (DCE), TRICHLOROETHYLENE (TCE), VINYL CHLORIDE 

 

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”

Emeryville CA – SOUTH BAYFRONT PROJECT (01890019)

Envirostor Deed Restriction South Bayfront Property Shellmound Street Emeryville Alameda County
Parcel #s 049-1038-007, 049-1038-0.081 049-,1038-001-1,049-1038-001-4,
049-1038-002; 049-1038-003; 049-1516-006-2, 049-1516-007-2 and the former
Shellmound Street right-of-way) p. 25

Site History

The history of the site included industrial usage of the various parcels including Elementis Pigments at 4650 Shellmound Street, McKinley Property at 5500 Shellmound Street, and the Sepulveda Property at 5600 Shellmound Street (Shellmound Properties). Since 1929, Elementis Pigments produced iron oxide for paint pigments and other uses. Sherwin Williams owned the McKinley and Sepulveda properties until 1965 and 1955, respectively. Sherwin Williams operated a lime and sulfur plant and an insecticide and spray plant. Other usages included a sign shop, a photo shop, a machine shop, and commercial offices at the McKinley Property. A truck and trailer storage yard and equipment rentals used the Sepulveda property. The southern portion of the site includes the former Myers Drum site which historically was used for drum cleaning and recycling. Continue reading “Emeryville CA – SOUTH BAYFRONT PROJECT (01890019)”

Mountain View – MORA DRIVE (60002502)

Site History

2221-2291 MORA DRIVE, MOUNTAIN VIEW, CA 94040

Envirostor (State of California) page

The Mora Drive Site was formerly commercial/industrial. It includes several former DTSC sites: PLESSEY #2 (43360131), PLESSEY #3 (43360135), and SYMTRON CORP. (43360124) all of which were determined to require no further action. Lennar conducted sampling in 2015, 2016 and 2017 to confirm that the site has elevated levels of tetrachloroethylene and trichloroethylene in soil gas. Lennar plans to develop the property into residential.

Google Map

Deed Restriction / Land Use Covenant:

Land Use Covenant and Agreement, Environmental Restriction 8/2/2019 

  • ACTIVITIES PROHIBITED WHICH DISTURB THE REMEDY AND MONITORING SYSTEMS WITHOUT APPROVAL
  • LAND USE COVENANT
  • MAINTAIN MONITORING OF GROUNDWATER
  • NO GROUNDWATER EXTRACTION AT ANY DEPTH WITHOUT APPROVAL
  • NOTIFY AFTER CHANGE OF PROPERTY OWNER
  • NOTIFY DAMAGES TO REMEDY AND MONITORING SYSTEMS UPON DISCOVERY
  • NOTIFY PRIOR TO DEVELOPMENT
  • NOTIFY PRIOR TO SUBSURFACE WORK

POTENTIAL CONTAMINANTS OF CONCERN

TETRACHLOROETHYLENE (PCE)
TRICHLOROETHYLENE (TCE)

Envirostor disclaimer

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”

HEWLETT-PACKARD (620-640 PAGE MILL ROAD) PALO ALTO, CA

Groundwater map showing extent of pollution under neighborhoods in Palo Alto

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/

EPA Superfund Site Link 620-640 PAGE MILL RD PALO ALTO, CA 94304-1001
Geotracker State of California website link for the site

POTENTIAL CONTAMINANTS OF CONCERN
1,1,1-TRICHLOROETHANE (TCA), ARSENIC, TETRACHLOROETHYLENE (PCE), TRICHLOROETHYLENE (TCE)

Deed Restrictions: ACTIVITIES PROHIBITED WHICH DISTURB THE REMEDY AND MONITORING SYSTEMS WITHOUT APPROVAL, LAND USE COVENANT, NOTIFY DAMAGES TO REMEDY AND MONITORING SYSTEMS UPON DISCOVERY 

HEWLETT-PACKARD COMPANY (SL720511210) – (Geotracker MAP) Map indicating toxic waste sites in as small square boxes. If you click on each square you will be directed to the State Geotracker page for that toxic waste site.

Google Map Reference

Geotracker map for 5/1/2018 showing the toxic wastes sites in the area area affected and the well sites to monitor the groundwater.

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 from 2019. NBC Bay Area had a series of maps that indicated where the toxic waste sites were located and the extent of the damage encompassing vast areas of the community but they took it down. The pollution is in the groundwater so it covers a vast area in Pink.

 

Map Source: The Chemical Legacy of Old Silicon Valley, NBC Bay Area, Map Editor Scott Pham

Middlefield-Ellis-Whisman (MEW) EPA Superfund Study Area (or MEW Site) is comprised of three Superfund sites Mountain View California

Groundwater Contamination Map Toxic Plumes Map Source: The Chemical Legacy of Old Silicon Valley, NBC Bay Area, Map Editor Scott Pham 2019 https://www.nbcbayarea.com/on-air/as-seen-on/toxic-plumes_-the-dark-side-of-silicon-valley_bay-area/87485/

Envirostor State of California Link: “The EPA added this site to the National Priorities List (NPL) in 1991. This Superfund site is comprised of several former Fairchild Semiconductor Corp facilities spanning 56 acres in Mountain View. The Fairchild Semiconductor Corp – Mountain View site is one of three Superfund or NPL sites that are being cleaned up simultaneously. The other two Superfund sites are the Intel – Mountain View site and the Raytheon site. All three sites are located in the Middlefield-Ellis-Whisman (MEW) Study Area and are being addressed collectively as the MEW SIte. Site investigations at several of these facilities during 1981 and 1982 revealed extensive soil and groundwater contamination, primarily VOCs. Soil cleanup by soil vapor extraction, excavation, and aeration has been completed at all the MEW study area sites. Groundwater remediation is ongoing at the MEW Study Area.”

The contaminants which have been detected in soil and groundwater include trichloroethylene (TCE), trichloroethane (TCA), dichloroethylene (DCE) and chloroform. Continue reading “Middlefield-Ellis-Whisman (MEW) EPA Superfund Study Area (or MEW Site) is comprised of three Superfund sites Mountain View California”

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

EPA Superfund Site: INTERSIL INC./SIEMENS COMPONENTS CUPERTINO, CA

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:

POTENTIAL CONTAMINANTS OF CONCERN

1,1,1-TRICHLOROETHANE (TCA)
FREON
OTHER CHLORINATED HYDROCARBONS
TETRACHLOROETHYLENE (PCE)
TRICHLOROETHYLENE (TCE)

Deed Restrictions:

ACTIVITIES PROHIBITED WHICH DISTURB THE REMEDY AND MONITORING SYSTEMS WITHOUT APPROVAL
DAY CARE CENTER PROHIBITED
ELDER CARE CENTER PROHIBITED
HOSPITAL USE PROHIBITED
LAND USE COVENANT
NO GROUNDWATER EXTRACTION AT ANY DEPTH WITHOUT APPROVAL
NOTIFY DAMAGES TO REMEDY AND MONITORING SYSTEMS UPON DISCOVERY
NOTIFY PRIOR TO SUBSURFACE WORK
PUBLIC OR PRIVATE SCHOOL FOR PERSONS UNDER 21 PROHIBITED
RESIDENCE USE PROHIBITED

Featured

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.

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.

 

Google HQ Mountain View California

A map made in 2014 by Arcadis that depicts the well locations on the site
Mountainview Voice Article on the TCE Vapor Intrusion with Map that covers the Google Site. https://www.mv-voice.com/news/2018/06/08/epa-sets-sights-on-tce-vapor-intrusion

EPA information on the site

Revision No. 1 to Proposed Groundwater Self-Monitoring Plan (SMP) for the
2018 Annual Monitoring Event for the Spectra-Physics Teledyne Semiconductor
Superfund Site (the Site) comprised of the Former Teledyne Semiconductor and
Former Spectra-Physics Lasers, Inc., Sites Located in Mountain View, California
Groundwater Contamination Map Toxic Plumes Map Source: The Chemical Legacy of Old Silicon Valley, NBC Bay Area, Map Editor Scott Pham 2019 https://www.nbcbayarea.com/on-air/as-seen-on/toxic-plumes_-the-dark-side-of-silicon-valley_bay-area/87485/

The Teledyne property is part of a two-property Superfund site along with the adjacent Spectra-Physics property.

The responsible parties (RPs) for the Teledyne/Spectra-Physics site completed a Monitored Natural Attenuation (MNA) study in the off-property area north of and downgradient of the site. The MNA study concluded that natural breakdown of the chlorinated volatile organic compounds of concern is occuring naturally and at the same rate as groundwater extraction. As a result, only a few of the off-property downgradient extraction wells were operating mainly to maintain hydraulic control of the plume. The RPs completed a pilot study to test the feasibility of enhanced reductive dechlorination (ERD) and concluded that ERD is feasible with bioaugmentation of the Shallow Zone.

Within the last five years, the RPs detected elevated source areas at the Teledyne property using high resolution technology and continuously logged and screened ERD injection well boreholes. Implementing a full-scale ERD treatability study, they have been and are currently remediating the property with groundwater-CVOC levels dropping from as much as over 80,000 ug/l to low multiples of MCLs. Several rounds of ERD injections successfully cleaned up most of the Shallow Zone at the Teledyne property and the adjacent Spring Street residential area to drinking water standards and the treatability study was even more successful in the underlying Upper and Lower Intermediate Zones.

An on-property IA VI evaluation at a SpectraPhysics property in 2004 indicated no IA-CVOC contamination above the Regional Water Board’s 2008 ESLs. More recently, the RPs also assertively evaluated potential IA VI in the off-property commercial North Bayshore and residential Spring Street areas to conclude that IA VI is not occurring in most of the commercial area and is occasionally occurring in several homes in the residential area. The RPs installed sub-slab depressurization systems in the impacted on-property commercial buildings and offered the affected residents crawl space fans to address the issue.

Google Map Reference

Geotracker document explaining the toxic groundwater plume encompassing the Googleplex with maps describing all of the toxic waste sites in the Teledyne/Spectra-Physics site (SL721281224)
POTENTIAL CONTAMINANTS OF CONCERN
OTHER CHLORINATED HYDROCARBONS, TETRACHLOROETHYLENE (PCE), TRICHLOROETHYLENE (TCE), VINYL CHLORIDE

Nine indicator chemicals were identified from approximately 30
chemicals detected in the Study Area. The nine indicator chemicals are as follows:
1,1-dichloroethane (1,1-DCA)
1.1-dichloroethylene (1,1-DCE)
1.2-dichloroethylene (1,2-DCE)
tetrachloroethylene (PCE)
toluene
1,2,4-trichlorobenzene (1,2,4-TCB)
1,1,1-trichloroethane (1,1,1-TCA)
trichloroethylene (TCE)
vinyl chloride (VC

RECORD OF DECISION, TELEDYNE SEMICONDUCTOR AND SPECTRA-PHYSICS, INC. JOINT SUPERFUND SITES MOUNTAIN VIEW, CALIFORNIA MARCH 22, 1991 U.S. ENVIRONMENTAL PROTECTION AGENCY REGION 9 p. 26
https://semspub.epa.gov/work/09/46745.pdf

Geotracker Deed Restrictions for Teledyne/Spectra-Physics site Superfund Site Continue reading “Google HQ Mountain View California”