10. Exhibit D.4 - EIR Appendices — Downey City Council, June 11, 2024 (part 8 of 13)

This dataset also contains sites which are either proposed to or on the National Priorities List (NPL) and the sites which are in the screening and assessment phase for possible inclusion on the NPL.

Date of Government Version: 03/07/2016
Date Data Arrived at EDR: 04/05/2016
Date Made Active in Reports: 04/15/2016
Number of Days to Update: 10
Source: EPA
Telephone: 800-424-9346
Last EDR Contact: 10/20/2016
Next Scheduled EDR Contact: 01/30/2017
Data Release Frequency: Quarterly
Federal CERCLIS NFRAP site list
SEMS-ARCHIVE: Superfund Enterprise Management System Archive TC04816690.2r Page GR-2

GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
SEMS-ARCHIVE (Superfund Enterprise Management System Archive) tracks sites that have no further interest under the Federal Superfund Program based on available information. The list was formerly known as the CERCLIS-NFRAP, renamed to SEMS ARCHIVE by the EPA in 2015. EPA may perform a minimal level of assessment work at a site while it is archived if site conditions change and/or new information becomes available. Archived sites have been removed and archived from the inventory of SEMS sites. Archived status indicates that, to the best of EPA’s knowledge, assessment at a site has been completed and that EPA has determined no further steps will be taken to list the site on the National Priorities List (NPL), unless information indicates this decision was not appropriate or other considerations require a recommendation for listing at a later time. The decision does not necessarily mean that there is no hazard associated with a given site; it only means that. based upon available information, the location is not judged to be potential NPL site.

Date of Government Version: 03/07/2016
Date Data Arrived at EDR: 04/05/2016
Date Made Active in Reports: 04/15/2016
Number of Days to Update: 10
Source: EPA
Telephone: 800-424-9346
Last EDR Contact: 10/20/2016
Next Scheduled EDR Contact: 01/30/2017
Data Release Frequency: Quarterly
Federal RCRA CORRACTS facilities list
CORRACTS: Corrective Action Report
CORRACTS identifies hazardous waste handlers with RCRA corrective action activity.

Date of Government Version: 06/27/2016
Date Data Arrived at EDR: 06/30/2016
Date Made Active in Reports: 09/02/2016
Number of Days to Update: 64
Source: EPA
Telephone: 800-424-9346
Last EDR Contact: 09/28/2016
Next Scheduled EDR Contact: 01/09/2017
Data Release Frequency: Quarterly
Federal RCRA non-CORRACTS TSD facilities list
RCRA-TSDF: RCRA - Treatment, Storage and Disposal
RCRAInfo is EPA’s comprehensive information system, providing access to data supporting the Resource Conservation and Recovery Act (RCRA) of 1976 and the Hazardous and Solid Waste Amendments (HSWA) of 1984. The database includes selective information on sites which generate, transport, store, treat and/or dispose of hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA). Transporters are individuals or entities that move hazardous waste from the generator offsite to a facility that can recycle, treat, store, or dispose of the waste. TSDFs treat, store, or dispose of the waste.

Date of Government Version: 06/21/2016
Date Data Arrived at EDR: 06/30/2016
Date Made Active in Reports: 09/02/2016
Number of Days to Update: 64
Source: Environmental Protection Agency
Telephone: (415) 495-8895
Last EDR Contact: 09/28/2016
Next Scheduled EDR Contact: 01/09/2017
Data Release Frequency: Quarterly
Federal RCRA generators list
RCRA-LQG: RCRA - Large Quantity Generators
RCRAInfo is EPA’s comprehensive information system, providing access to data supporting the Resource Conservation and Recovery Act (RCRA) of 1976 and the Hazardous and Solid Waste Amendments (HSWA) of 1984. The database includes selective information on sites which generate, transport, store, treat and/or dispose of hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA). Large quantity generators (LQGs) generate over 1,000 kilograms (kg) of hazardous waste, or over 1 kg of acutely hazardous waste per month.

GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
RCRA-SQG: RCRA - Small Quantity Generators
RCRAInfo is EPA’s comprehensive information system, providing access to data supporting the Resource Conservation and Recovery Act (RCRA) of 1976 and the Hazardous and Solid Waste Amendments (HSWA) of 1984. The database includes selective information on sites which generate, transport, store, treat and/or dispose of hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA). Small quantity generators (SQGs) generate between 100 kg and 1,000 kg of hazardous waste per month.

Date of Government Version: 06/21/2016
Date Data Arrived at EDR: 06/30/2016
Date Made Active in Reports: 09/02/2016
Number of Days to Update: 64
Source: Environmental Protection Agency
Telephone: (415) 495-8895
Last EDR Contact: 09/28/2016
Next Scheduled EDR Contact: 01/09/2017
Data Release Frequency: Quarterly
RCRA-CESQG: RCRA - Conditionally Exempt Small Quantity Generators RCRAInfo is EPA’s comprehensive information system, providing access to data supporting the Resource Conservation and Recovery Act (RCRA) of 1976 and the Hazardous and Solid Waste Amendments (HSWA) of 1984. The database includes selective information on sites which generate, transport, store, treat and/or dispose of hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA). Conditionally exempt small quantity generators (CESQGs) generate less than 100 kg of hazardous waste, or less than 1 kg of acutely hazardous waste per month.

Date of Government Version: 05/28/2015
Date Data Arrived at EDR: 05/29/2015
Date Made Active in Reports: 06/11/2015
Number of Days to Update: 13
Source: Department of the Navy
Telephone: 843-820-7326
Last EDR Contact: 11/18/2016
Next Scheduled EDR Contact: 02/27/2017
Data Release Frequency: Varies
US ENG CONTROLS: Engineering Controls Sites List
A listing of sites with engineering controls in place. Engineering controls include various forms of caps, building foundations, liners, and treatment methods to create pathway elimination for regulated substances to enter environmental media or effect human health.

Date of Government Version: 05/09/2016
Date Data Arrived at EDR: 06/01/2016
Date Made Active in Reports: 09/02/2016
Number of Days to Update: 93
Source: Environmental Protection Agency
Telephone: 703-603-0695
Last EDR Contact: 11/29/2016
Next Scheduled EDR Contact: 03/13/2017
Data Release Frequency: Varies
US INST CONTROL: Sites with Institutional Controls
A listing of sites with institutional controls in place. Institutional controls include administrative measures, such as groundwater use restrictions, construction restrictions, property use restrictions, and post remediation care requirements intended to prevent exposure to contaminants remaining on site. Deed restrictions are generally required as part of the institutional controls.

GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
Federal ERNS list
ERNS: Emergency Response Notification System
Emergency Response Notification System. ERNS records and stores information on reported releases of oil and hazardous substances.

Date of Government Version: 09/26/2016
Date Data Arrived at EDR: 09/29/2016
Date Made Active in Reports: 11/11/2016
Number of Days to Update: 43
Source: National Response Center, United States Coast Guard Telephone: 202-267-2180
Last EDR Contact: 09/29/2016
Next Scheduled EDR Contact: 01/09/2017
Data Release Frequency: Annually
State- and tribal - equivalent NPL
RESPONSE: State Response Sites
Identifies confirmed release sites where DTSC is involved in remediation, either in a lead or oversight capacity.

These confirmed release sites are generally high-priority and high potential risk.

Date of Government Version: 08/01/2016
Date Data Arrived at EDR: 08/02/2016
Date Made Active in Reports: 10/05/2016
Number of Days to Update: 64
Source: Department of Toxic Substances Control
Telephone: 916-323-3400
Last EDR Contact: 11/01/2016
Next Scheduled EDR Contact: 02/13/2017
Data Release Frequency: Quarterly
State- and tribal - equivalent CERCLIS
ENVIROSTOR: EnviroStor Database
The Department of Toxic Substances Control’s (DTSC’s) Site Mitigation and Brownfields Reuse Program’s (SMBRP’s) EnviroStor database identifes sites that have known contamination or sites for which there may be reasons to investigate further. The database includes the following site types: Federal Superfund sites (National Priorities List (NPL)); State Response, including Military Facilities and State Superfund; Voluntary Cleanup; and School sites. EnviroStor provides similar information to the information that was available in CalSites, and provides additional site information, including, but not limited to, identification of formerly-contaminated properties that have been released for reuse, properties where environmental deed restrictions have been recorded to prevent inappropriate land uses, and risk characterization information that is used to assess potential impacts to public health and the environment at contaminated sites.

Date of Government Version: 08/15/2016
Date Data Arrived at EDR: 08/16/2016
Date Made Active in Reports: 10/05/2016
Number of Days to Update: 50
Source: Department of Resources Recycling and Recovery Telephone: 916-341-6320
Last EDR Contact: 11/15/2016
Next Scheduled EDR Contact: 02/27/2017
Data Release Frequency: Quarterly
State and tribal leaking storage tank lists
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GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
LUST REG 6L: Leaking Underground Storage Tank Case Listing For more current information, please refer to the State Water Resources Control Board’s LUST database.

Date of Government Version: 09/09/2003
Date Data Arrived at EDR: 09/10/2003
Date Made Active in Reports: 10/07/2003
Number of Days to Update: 27
Source: California Regional Water Quality Control Board Lahontan Region (6) Telephone: 530-542-5572
Last EDR Contact: 09/12/2011
Next Scheduled EDR Contact: 12/26/2011
Data Release Frequency: No Update Planned
LUST: Geotracker’s Leaking Underground Fuel Tank Report Leaking Underground Storage Tank (LUST) Sites included in GeoTracker. GeoTracker is the Water Boards data management system for sites that impact, or have the potential to impact, water quality in California, with emphasis on groundwater.

Date of Government Version: 11/01/2016
Date Data Arrived at EDR: 11/01/2016
Date Made Active in Reports: 12/15/2016
Number of Days to Update: 44
Source: State Water Resources Control Board
Telephone: see region list
Last EDR Contact: 12/14/2016
Next Scheduled EDR Contact: 03/27/2017
Data Release Frequency: Quarterly
LUST REG 9: Leaking Underground Storage Tank Report
Orange, Riverside, San Diego counties. For more current information, please refer to the State Water Resources Control Board’s LUST database.

Date of Government Version: 03/01/2001
Date Data Arrived at EDR: 04/23/2001
Date Made Active in Reports: 05/21/2001
Number of Days to Update: 28
Source: California Regional Water Quality Control Board San Diego Region (9) Telephone: 858-637-5595
Last EDR Contact: 09/26/2011
Next Scheduled EDR Contact: 01/09/2012
Data Release Frequency: No Update Planned
LUST REG 8: Leaking Underground Storage Tanks
California Regional Water Quality Control Board Santa Ana Region (8). For more current information, please refer to the State Water Resources Control Board’s LUST database.

Date of Government Version: 02/14/2005
Date Data Arrived at EDR: 02/15/2005
Date Made Active in Reports: 03/28/2005
Number of Days to Update: 41
Source: California Regional Water Quality Control Board Santa Ana Region (8) Telephone: 909-782-4496
Last EDR Contact: 08/15/2011
Next Scheduled EDR Contact: 11/28/2011
Data Release Frequency: Varies
LUST REG 7: Leaking Underground Storage Tank Case Listing Leaking Underground Storage Tank locations. Imperial, Riverside, San Diego, Santa Barbara counties.

Date of Government Version: 02/26/2004
Date Data Arrived at EDR: 02/26/2004
Date Made Active in Reports: 03/24/2004
Number of Days to Update: 27
Source: California Regional Water Quality Control Board Colorado River Basin Region (7) Telephone: 760-776-8943
Last EDR Contact: 08/01/2011
Next Scheduled EDR Contact: 11/14/2011
Data Release Frequency: No Update Planned
LUST REG 6V: Leaking Underground Storage Tank Case Listing Leaking Underground Storage Tank locations. Inyo, Kern, Los Angeles, Mono, San Bernardino counties.

Date of Government Version: 06/07/2005
Date Data Arrived at EDR: 06/07/2005
Date Made Active in Reports: 06/29/2005
Number of Days to Update: 22
Source: California Regional Water Quality Control Board Victorville Branch Office (6) Telephone: 760-241-7365
Last EDR Contact: 09/12/2011
Next Scheduled EDR Contact: 12/26/2011
Data Release Frequency: No Update Planned
LUST REG 5: Leaking Underground Storage Tank Database
Leaking Underground Storage Tank locations. Alameda, Alpine, Amador, Butte, Colusa, Contra Costa, Calveras, El Dorado, Fresno, Glenn, Kern, Kings, Lake, Lassen, Madera, Mariposa, Merced, Modoc, Napa, Nevada, Placer, Plumas, Sacramento, San Joaquin, Shasta, Solano, Stanislaus, Sutter, Tehama, Tulare, Tuolumne, Yolo, Yuba counties.

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GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
Date of Government Version: 07/01/2008
Date Data Arrived at EDR: 07/22/2008
Date Made Active in Reports: 07/31/2008
Number of Days to Update: 9
Source: California Regional Water Quality Control Board Central Valley Region (5) Telephone: 916-464-4834
Last EDR Contact: 07/01/2011
Next Scheduled EDR Contact: 10/17/2011
Data Release Frequency: No Update Planned
LUST REG 4: Underground Storage Tank Leak List
Los Angeles, Ventura counties. For more current information, please refer to the State Water Resources Control Board’s LUST database.

Date of Government Version: 09/07/2004
Date Data Arrived at EDR: 09/07/2004
Date Made Active in Reports: 10/12/2004
Number of Days to Update: 35
Source: California Regional Water Quality Control Board Los Angeles Region (4) Telephone: 213-576-6710
Last EDR Contact: 09/06/2011
Next Scheduled EDR Contact: 12/19/2011
Data Release Frequency: No Update Planned
LUST REG 3: Leaking Underground Storage Tank Database
Leaking Underground Storage Tank locations. Monterey, San Benito, San Luis Obispo, Santa Barbara, Santa Cruz counties.

Date of Government Version: 05/19/2003
Date Data Arrived at EDR: 05/19/2003
Date Made Active in Reports: 06/02/2003
Number of Days to Update: 14
Source: California Regional Water Quality Control Board Central Coast Region (3) Telephone: 805-542-4786
Last EDR Contact: 07/18/2011
Next Scheduled EDR Contact: 10/31/2011
Data Release Frequency: No Update Planned
LUST REG 2: Fuel Leak List
Leaking Underground Storage Tank locations. Alameda, Contra Costa, Marin, Napa, San Francisco, San Mateo, Santa Clara, Solano, Sonoma counties.

Date of Government Version: 09/30/2004
Date Data Arrived at EDR: 10/20/2004
Date Made Active in Reports: 11/19/2004
Number of Days to Update: 30
Source: California Regional Water Quality Control Board San Francisco Bay Region (2) Telephone: 510-622-2433
Last EDR Contact: 09/19/2011
Next Scheduled EDR Contact: 01/02/2012
Data Release Frequency: Quarterly
LUST REG 1: Active Toxic Site Investigation
Del Norte, Humboldt, Lake, Mendocino, Modoc, Siskiyou, Sonoma, Trinity counties. For more current information, please refer to the State Water Resources Control Board’s LUST database.

Date of Government Version: 02/01/2001
Date Data Arrived at EDR: 02/28/2001
Date Made Active in Reports: 03/29/2001
Number of Days to Update: 29
Source: California Regional Water Quality Control Board North Coast (1) Telephone: 707-570-3769
Last EDR Contact: 08/01/2011
Next Scheduled EDR Contact: 11/14/2011
Data Release Frequency: No Update Planned
INDIAN LUST R7: Leaking Underground Storage Tanks on Indian Land LUSTs on Indian land in Iowa, Kansas, and Nebraska
Date of Government Version: 10/09/2015
Date Data Arrived at EDR: 02/12/2016
Date Made Active in Reports: 06/03/2016
Number of Days to Update: 112
Source: EPA Region 7
Telephone: 913-551-7003
Last EDR Contact: 10/28/2016
Next Scheduled EDR Contact: 02/06/2017
Data Release Frequency: Varies
INDIAN LUST R8: Leaking Underground Storage Tanks on Indian Land LUSTs on Indian land in Colorado, Montana, North Dakota, South Dakota, Utah and Wyoming.

Date of Government Version: 10/13/2015
Date Data Arrived at EDR: 10/23/2015
Date Made Active in Reports: 02/18/2016
Number of Days to Update: 118
Source: EPA Region 8
Telephone: 303-312-6271
Last EDR Contact: 10/28/2016
Next Scheduled EDR Contact: 02/06/2017
Data Release Frequency: Quarterly
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GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
INDIAN LUST R9: Leaking Underground Storage Tanks on Indian Land LUSTs on Indian land in Arizona, California, New Mexico and Nevada Date of Government Version: 02/25/2016
Date Data Arrived at EDR: 04/27/2016
Date Made Active in Reports: 06/03/2016
Number of Days to Update: 37
Source: Environmental Protection Agency
Telephone: 415-972-3372
Last EDR Contact: 10/28/2016
Next Scheduled EDR Contact: 02/06/2017
Data Release Frequency: Quarterly
INDIAN LUST R10: Leaking Underground Storage Tanks on Indian Land LUSTs on Indian land in Alaska, Idaho, Oregon and Washington.

Date of Government Version: 01/07/2016
Date Data Arrived at EDR: 01/08/2016
Date Made Active in Reports: 02/18/2016
Number of Days to Update: 41
Source: EPA Region 10
Telephone: 206-553-2857
Last EDR Contact: 10/28/2016
Next Scheduled EDR Contact: 02/06/2017
Data Release Frequency: Quarterly
INDIAN LUST R1: Leaking Underground Storage Tanks on Indian Land A listing of leaking underground storage tank locations on Indian Land.

Date of Government Version: 10/27/2015
Date Data Arrived at EDR: 10/29/2015
Date Made Active in Reports: 01/04/2016
Number of Days to Update: 67
Source: EPA Region 1
Telephone: 617-918-1313
Last EDR Contact: 10/28/2016
Next Scheduled EDR Contact: 02/06/2017
Data Release Frequency: Varies
INDIAN LUST R4: Leaking Underground Storage Tanks on Indian Land LUSTs on Indian land in Florida, Mississippi and North Carolina.

Date of Government Version: 02/05/2016
Date Data Arrived at EDR: 04/29/2016
Date Made Active in Reports: 06/03/2016
Number of Days to Update: 35
Source: EPA Region 4
Telephone: 404-562-8677
Last EDR Contact: 10/28/2016
Next Scheduled EDR Contact: 02/06/2017
Data Release Frequency: Semi-Annually
INDIAN LUST R5: Leaking Underground Storage Tanks on Indian Land Leaking underground storage tanks located on Indian Land in Michigan, Minnesota and Wisconsin.

Date of Government Version: 02/17/2016
Date Data Arrived at EDR: 04/27/2016
Date Made Active in Reports: 06/03/2016
Number of Days to Update: 37
Source: EPA, Region 5
Telephone: 312-886-7439
Last EDR Contact: 10/28/2016
Next Scheduled EDR Contact: 02/06/2017
Data Release Frequency: Varies
INDIAN LUST R6: Leaking Underground Storage Tanks on Indian Land LUSTs on Indian land in New Mexico and Oklahoma.

Date of Government Version: 12/11/2015
Date Data Arrived at EDR: 02/19/2016
Date Made Active in Reports: 06/03/2016
Number of Days to Update: 105
Source: EPA Region 6
Telephone: 214-665-6597
Last EDR Contact: 10/28/2016
Next Scheduled EDR Contact: 02/06/2017
Data Release Frequency: Varies
SLIC: Statewide SLIC Cases
Cleanup Program Sites (CPS; also known as Site Cleanups [SC] and formerly known as Spills, Leaks, Investigations, and Cleanups [SLIC] sites) included in GeoTracker. GeoTracker is the Water Boards data management system for sites that impact, or have the potential to impact, water quality in California, with emphasis on groundwater.

Date of Government Version: 09/12/2016
Date Data Arrived at EDR: 09/13/2016
Date Made Active in Reports: 10/14/2016
Number of Days to Update: 31
Source: State Water Resources Control Board
Telephone: 866-480-1028
Last EDR Contact: 12/14/2016
Next Scheduled EDR Contact: 03/27/2017
Data Release Frequency: Varies
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GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
SLIC REG 1: Active Toxic Site Investigations
The SLIC (Spills, Leaks, Investigations and Cleanup) program is designed to protect and restore water quality from spills, leaks, and similar discharges.

Date of Government Version: 04/03/2003
Date Data Arrived at EDR: 04/07/2003
Date Made Active in Reports: 04/25/2003
Number of Days to Update: 18
Source: California Regional Water Quality Control Board, North Coast Region (1) Telephone: 707-576-2220
Last EDR Contact: 08/01/2011
Next Scheduled EDR Contact: 11/14/2011
Data Release Frequency: No Update Planned
SLIC REG 2: Spills, Leaks, Investigation & Cleanup Cost Recovery Listing The SLIC (Spills, Leaks, Investigations and Cleanup) program is designed to protect and restore water quality from spills, leaks, and similar discharges.

Date of Government Version: 09/30/2004
Date Data Arrived at EDR: 10/20/2004
Date Made Active in Reports: 11/19/2004
Number of Days to Update: 30
Source: Regional Water Quality Control Board San Francisco Bay Region (2) Telephone: 510-286-0457
Last EDR Contact: 09/19/2011
Next Scheduled EDR Contact: 01/02/2012
Data Release Frequency: Quarterly
SLIC REG 3: Spills, Leaks, Investigation & Cleanup Cost Recovery Listing The SLIC (Spills, Leaks, Investigations and Cleanup) program is designed to protect and restore water quality from spills, leaks, and similar discharges.

Date of Government Version: 05/18/2006
Date Data Arrived at EDR: 05/18/2006
Date Made Active in Reports: 06/15/2006
Number of Days to Update: 28
Source: California Regional Water Quality Control Board Central Coast Region (3) Telephone: 805-549-3147
Last EDR Contact: 07/18/2011
Next Scheduled EDR Contact: 10/31/2011
Data Release Frequency: Semi-Annually
SLIC REG 4: Spills, Leaks, Investigation & Cleanup Cost Recovery Listing The SLIC (Spills, Leaks, Investigations and Cleanup) program is designed to protect and restore water quality from spills, leaks, and similar discharges.

Date of Government Version: 11/17/2004
Date Data Arrived at EDR: 11/18/2004
Date Made Active in Reports: 01/04/2005
Number of Days to Update: 47
Source: Region Water Quality Control Board Los Angeles Region (4) Telephone: 213-576-6600
Last EDR Contact: 07/01/2011
Next Scheduled EDR Contact: 10/17/2011
Data Release Frequency: Varies
SLIC REG 5: Spills, Leaks, Investigation & Cleanup Cost Recovery Listing The SLIC (Spills, Leaks, Investigations and Cleanup) program is designed to protect and restore water quality from spills, leaks, and similar discharges.

Date of Government Version: 04/01/2005
Date Data Arrived at EDR: 04/05/2005
Date Made Active in Reports: 04/21/2005
Number of Days to Update: 16
Source: Regional Water Quality Control Board Central Valley Region (5) Telephone: 916-464-3291
Last EDR Contact: 09/12/2011
Next Scheduled EDR Contact: 12/26/2011
Data Release Frequency: Semi-Annually
SLIC REG 6V: Spills, Leaks, Investigation & Cleanup Cost Recovery Listing The SLIC (Spills, Leaks, Investigations and Cleanup) program is designed to protect and restore water quality from spills, leaks, and similar discharges.

Date of Government Version: 05/24/2005
Date Data Arrived at EDR: 05/25/2005
Date Made Active in Reports: 06/16/2005
Number of Days to Update: 22
Source: Regional Water Quality Control Board, Victorville Branch Telephone: 619-241-6583
Last EDR Contact: 08/15/2011
Next Scheduled EDR Contact: 11/28/2011
Data Release Frequency: Semi-Annually
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GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
SLIC REG 6L: SLIC Sites
The SLIC (Spills, Leaks, Investigations and Cleanup) program is designed to protect and restore water quality from spills, leaks, and similar discharges.

Date of Government Version: 09/07/2004
Date Data Arrived at EDR: 09/07/2004
Date Made Active in Reports: 10/12/2004
Number of Days to Update: 35
Source: California Regional Water Quality Control Board, Lahontan Region Telephone: 530-542-5574
Last EDR Contact: 08/15/2011
Next Scheduled EDR Contact: 11/28/2011
Data Release Frequency: No Update Planned
SLIC REG 7: SLIC List
The SLIC (Spills, Leaks, Investigations and Cleanup) program is designed to protect and restore water quality from spills, leaks, and similar discharges.

Date of Government Version: 11/24/2004
Date Data Arrived at EDR: 11/29/2004
Date Made Active in Reports: 01/04/2005
Number of Days to Update: 36
Source: California Regional Quality Control Board, Colorado River Basin Region Telephone: 760-346-7491
Last EDR Contact: 08/01/2011
Next Scheduled EDR Contact: 11/14/2011
Data Release Frequency: No Update Planned
SLIC REG 8: Spills, Leaks, Investigation & Cleanup Cost Recovery Listing The SLIC (Spills, Leaks, Investigations and Cleanup) program is designed to protect and restore water quality from spills, leaks, and similar discharges.

Date of Government Version: 04/03/2008
Date Data Arrived at EDR: 04/03/2008
Date Made Active in Reports: 04/14/2008
Number of Days to Update: 11
Source: California Region Water Quality Control Board Santa Ana Region (8) Telephone: 951-782-3298
Last EDR Contact: 09/12/2011
Next Scheduled EDR Contact: 12/26/2011
Data Release Frequency: Semi-Annually
SLIC REG 9: Spills, Leaks, Investigation & Cleanup Cost Recovery Listing The SLIC (Spills, Leaks, Investigations and Cleanup) program is designed to protect and restore water quality from spills, leaks, and similar discharges.

Date of Government Version: 09/10/2007
Date Data Arrived at EDR: 09/11/2007
Date Made Active in Reports: 09/28/2007
Number of Days to Update: 17
Source: California Regional Water Quality Control Board San Diego Region (9) Telephone: 858-467-2980
Last EDR Contact: 08/08/2011
Next Scheduled EDR Contact: 11/21/2011
Data Release Frequency: Annually
State and tribal registered storage tank lists
FEMA UST: Underground Storage Tank Listing
A listing of all FEMA owned underground storage tanks.

Date of Government Version: 01/01/2010
Date Data Arrived at EDR: 02/16/2010
Date Made Active in Reports: 04/12/2010
Number of Days to Update: 55
Source: FEMA
Telephone: 202-646-5797
Last EDR Contact: 10/11/2016
Next Scheduled EDR Contact: 01/23/2017
Data Release Frequency: Varies
UST: Active UST Facilities
Active UST facilities gathered from the local regulatory agencies Date of Government Version: 09/12/2016
Date Data Arrived at EDR: 09/14/2016
Date Made Active in Reports: 10/14/2016
Number of Days to Update: 30
Source: SWRCB
Telephone: 916-341-5851
Last EDR Contact: 12/15/2016
Next Scheduled EDR Contact: 03/27/2017
Data Release Frequency: Semi-Annually
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GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
AST: Aboveground Petroleum Storage Tank Facilities
A listing of aboveground storage tank petroleum storage tank locations.

Date of Government Version: 07/06/2016
Date Data Arrived at EDR: 07/12/2016
Date Made Active in Reports: 09/19/2016
Number of Days to Update: 69
Source: California Environmental Protection Agency
Telephone: 916-327-5092
Last EDR Contact: 12/22/2016
Next Scheduled EDR Contact: 04/10/2017
Data Release Frequency: Quarterly
INDIAN UST R10: Underground Storage Tanks on Indian Land The Indian Underground Storage Tank (UST) database provides information about underground storage tanks on Indian land in EPA Region 10 (Alaska, Idaho, Oregon, Washington, and Tribal Nations).

Date of Government Version: 01/07/2016
Date Data Arrived at EDR: 01/08/2016
Date Made Active in Reports: 02/18/2016
Number of Days to Update: 41
Source: EPA Region 10
Telephone: 206-553-2857
Last EDR Contact: 10/28/2016
Next Scheduled EDR Contact: 02/06/2017
Data Release Frequency: Quarterly
INDIAN UST R9: Underground Storage Tanks on Indian Land The Indian Underground Storage Tank (UST) database provides information about underground storage tanks on Indian land in EPA Region 9 (Arizona, California, Hawaii, Nevada, the Pacific Islands, and Tribal Nations).

Date of Government Version: 02/25/2016
Date Data Arrived at EDR: 04/27/2016
Date Made Active in Reports: 06/03/2016
Number of Days to Update: 37
Source: EPA Region 9
Telephone: 415-972-3368
Last EDR Contact: 10/28/2016
Next Scheduled EDR Contact: 02/06/2017
Data Release Frequency: Quarterly
INDIAN UST R8: Underground Storage Tanks on Indian Land The Indian Underground Storage Tank (UST) database provides information about underground storage tanks on Indian land in EPA Region 8 (Colorado, Montana, North Dakota, South Dakota, Utah, Wyoming and 27 Tribal Nations).

Date of Government Version: 01/26/2016
Date Data Arrived at EDR: 02/05/2016
Date Made Active in Reports: 06/03/2016
Number of Days to Update: 119
Source: EPA Region 8
Telephone: 303-312-6137
Last EDR Contact: 10/28/2016
Next Scheduled EDR Contact: 02/06/2017
Data Release Frequency: Quarterly
INDIAN UST R7: Underground Storage Tanks on Indian Land The Indian Underground Storage Tank (UST) database provides information about underground storage tanks on Indian land in EPA Region 7 (Iowa, Kansas, Missouri, Nebraska, and 9 Tribal Nations).

Date of Government Version: 09/23/2014
Date Data Arrived at EDR: 11/25/2014
Date Made Active in Reports: 01/29/2015
Number of Days to Update: 65
Source: EPA Region 7
Telephone: 913-551-7003
Last EDR Contact: 10/28/2016
Next Scheduled EDR Contact: 02/06/2017
Data Release Frequency: Varies
INDIAN UST R6: Underground Storage Tanks on Indian Land The Indian Underground Storage Tank (UST) database provides information about underground storage tanks on Indian land in EPA Region 6 (Louisiana, Arkansas, Oklahoma, New Mexico, Texas and 65 Tribes).

Date of Government Version: 12/03/2015
Date Data Arrived at EDR: 02/04/2016
Date Made Active in Reports: 06/03/2016
Number of Days to Update: 120
Source: EPA Region 6
Telephone: 214-665-7591
Last EDR Contact: 10/28/2016
Next Scheduled EDR Contact: 02/06/2017
Data Release Frequency: Semi-Annually
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GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
INDIAN UST R1: Underground Storage Tanks on Indian Land The Indian Underground Storage Tank (UST) database provides information about underground storage tanks on Indian land in EPA Region 1 (Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont and ten Tribal Nations).

Date of Government Version: 10/20/2015
Date Data Arrived at EDR: 10/29/2015
Date Made Active in Reports: 01/04/2016
Number of Days to Update: 67
Source: EPA, Region 1
Telephone: 617-918-1313
Last EDR Contact: 10/28/2016
Next Scheduled EDR Contact: 02/06/2017
Data Release Frequency: Varies
INDIAN UST R4: Underground Storage Tanks on Indian Land The Indian Underground Storage Tank (UST) database provides information about underground storage tanks on Indian land in EPA Region 4 (Alabama, Florida, Georgia, Kentucky, Mississippi, North Carolina, South Carolina, Tennessee and Tribal Nations)
Date of Government Version: 02/05/2016
Date Data Arrived at EDR: 04/29/2016
Date Made Active in Reports: 06/03/2016
Number of Days to Update: 35
Source: EPA Region 4
Telephone: 404-562-9424
Last EDR Contact: 10/28/2016
Next Scheduled EDR Contact: 02/06/2017
Data Release Frequency: Semi-Annually
INDIAN UST R5: Underground Storage Tanks on Indian Land The Indian Underground Storage Tank (UST) database provides information about underground storage tanks on Indian land in EPA Region 5 (Michigan, Minnesota and Wisconsin and Tribal Nations).

Date of Government Version: 11/05/2015
Date Data Arrived at EDR: 11/13/2015
Date Made Active in Reports: 01/04/2016
Number of Days to Update: 52
Source: EPA Region 5
Telephone: 312-886-6136
Last EDR Contact: 10/28/2016
Next Scheduled EDR Contact: 02/06/2017
Data Release Frequency: Varies
State and tribal voluntary cleanup sites
INDIAN VCP R7: Voluntary Cleanup Priority Lisitng
A listing of voluntary cleanup priority sites located on Indian Land located in Region 7.

Date of Government Version: 03/20/2008
Date Data Arrived at EDR: 04/22/2008
Date Made Active in Reports: 05/19/2008
Number of Days to Update: 27
Source: EPA, Region 7
Telephone: 913-551-7365
Last EDR Contact: 04/20/2009
Next Scheduled EDR Contact: 07/20/2009
Data Release Frequency: Varies
INDIAN VCP R1: Voluntary Cleanup Priority Listing
A listing of voluntary cleanup priority sites located on Indian Land located in Region 1.

Date of Government Version: 07/27/2015
Date Data Arrived at EDR: 09/29/2015
Date Made Active in Reports: 02/18/2016
Number of Days to Update: 142
Source: EPA, Region 1
Telephone: 617-918-1102
Last EDR Contact: 09/26/2016
Next Scheduled EDR Contact: 01/09/2017
Data Release Frequency: Varies
VCP: Voluntary Cleanup Program Properties
Contains low threat level properties with either confirmed or unconfirmed releases and the project proponents have request that DTSC oversee investigation and/or cleanup activities and have agreed to provide coverage for DTSC’s costs.

GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
State and tribal Brownfields sites
BROWNFIELDS: Considered Brownfieds Sites Listing
A listing of sites the SWRCB considers to be Brownfields since these are sites have come to them through the MOA Process.

Date of Government Version: 02/29/2016
Date Data Arrived at EDR: 03/07/2016
Date Made Active in Reports: 05/04/2016
Number of Days to Update: 58
Source: State Water Resources Control Board
Telephone: 916-323-7905
Last EDR Contact: 12/22/2016
Next Scheduled EDR Contact: 04/10/2017
Data Release Frequency: Varies

ADDITIONAL ENVIRONMENTAL RECORDS
Local Brownfield lists
US BROWNFIELDS: A Listing of Brownfields Sites
Brownfields are real property, the expansion, redevelopment, or reuse of which may be complicated by the presence or potential presence of a hazardous substance, pollutant, or contaminant. Cleaning up and reinvesting in these properties takes development pressures off of undeveloped, open land, and both improves and protects the environment.

Assessment, Cleanup and Redevelopment Exchange System (ACRES) stores information reported by EPA Brownfields grant recipients on brownfields properties assessed or cleaned up with grant funding as well as information on Targeted Brownfields Assessments performed by EPA Regions. A listing of ACRES Brownfield sites is obtained from Cleanups in My Community. Cleanups in My Community provides information on Brownfields properties for which information is reported back to EPA, as well as areas served by Brownfields grant programs.

Date of Government Version: 09/20/2016
Date Data Arrived at EDR: 09/21/2016
Date Made Active in Reports: 11/11/2016
Number of Days to Update: 51
Source: Environmental Protection Agency
Telephone: 202-566-2777
Last EDR Contact: 12/20/2016
Next Scheduled EDR Contact: 04/03/2017
Data Release Frequency: Semi-Annually
Local Lists of Landfill / Solid Waste Disposal Sites
WMUDS/SWAT: Waste Management Unit Database
Waste Management Unit Database System. WMUDS is used by the State Water Resources Control Board staff and the Regional Water Quality Control Boards for program tracking and inventory of waste management units. WMUDS is composed of the following databases: Facility Information, Scheduled Inspections Information, Waste Management Unit Information, SWAT Program Information, SWAT Report Summary Information, SWAT Report Summary Data, Chapter 15 (formerly Subchapter 15) Information, Chapter 15 Monitoring Parameters, TPCA Program Information, RCRA Program Information, Closure Information, and Interested Parties Information.

Date of Government Version: 04/01/2000
Date Data Arrived at EDR: 04/10/2000
Date Made Active in Reports: 05/10/2000
Number of Days to Update: 30
Source: State Water Resources Control Board
Telephone: 916-227-4448
Last EDR Contact: 11/07/2016
Next Scheduled EDR Contact: 02/20/2017
Data Release Frequency: No Update Planned
SWRCY: Recycler Database
A listing of recycling facilities in California.

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GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
Date of Government Version: 08/25/2016
Date Data Arrived at EDR: 08/26/2016
Date Made Active in Reports: 10/14/2016
Number of Days to Update: 49
Source: Integrated Waste Management Board
Telephone: 916-341-6422
Last EDR Contact: 11/11/2016
Next Scheduled EDR Contact: 02/27/2017
Data Release Frequency: Varies
INDIAN ODI: Report on the Status of Open Dumps on Indian Lands Location of open dumps on Indian land.

Date of Government Version: 12/31/1998
Date Data Arrived at EDR: 12/03/2007
Date Made Active in Reports: 01/24/2008
Number of Days to Update: 52
Source: Environmental Protection Agency
Telephone: 703-308-8245
Last EDR Contact: 10/31/2016
Next Scheduled EDR Contact: 02/13/2017
Data Release Frequency: Varies
ODI: Open Dump Inventory
An open dump is defined as a disposal facility that does not comply with one or more of the Part 257 or Part 258 Subtitle D Criteria.

Date of Government Version: 06/30/1985
Date Data Arrived at EDR: 08/09/2004
Date Made Active in Reports: 09/17/2004
Number of Days to Update: 39
Source: Environmental Protection Agency
Telephone: 800-424-9346
Last EDR Contact: 06/09/2004
Next Scheduled EDR Contact: N/A
Data Release Frequency: No Update Planned
DEBRIS REGION 9: Torres Martinez Reservation Illegal Dump Site Locations A listing of illegal dump sites location on the Torres Martinez Indian Reservation located in eastern Riverside County and northern Imperial County, California.

Date of Government Version: 01/12/2009
Date Data Arrived at EDR: 05/07/2009
Date Made Active in Reports: 09/21/2009
Number of Days to Update: 137
Source: EPA, Region 9
Telephone: 415-947-4219
Last EDR Contact: 10/24/2016
Next Scheduled EDR Contact: 02/06/2017
Data Release Frequency: No Update Planned
IHS OPEN DUMPS: Open Dumps on Indian Land
A listing of all open dumps located on Indian Land in the United States.

Date of Government Version: 04/01/2014
Date Data Arrived at EDR: 08/06/2014
Date Made Active in Reports: 01/29/2015
Number of Days to Update: 176
Source: Department of Health & Human Serivces, Indian Health Service Telephone: 301-443-1452
Last EDR Contact: 11/04/2016
Next Scheduled EDR Contact: 02/13/2017
Data Release Frequency: Varies
Local Lists of Hazardous waste / Contaminated Sites
US HIST CDL: National Clandestine Laboratory Register
A listing of clandestine drug lab locations that have been removed from the DEAs National Clandestine Laboratory Register.

Date of Government Version: 08/31/2016
Date Data Arrived at EDR: 09/06/2016
Date Made Active in Reports: 09/23/2016
Number of Days to Update: 17
Source: Drug Enforcement Administration
Telephone: 202-307-1000
Last EDR Contact: 08/31/2016
Next Scheduled EDR Contact: 10/10/2016
Data Release Frequency: No Update Planned
HIST CAL-SITES: Calsites Database
The Calsites database contains potential or confirmed hazardous substance release properties. In 1996, California EPA reevaluated and significantly reduced the number of sites in the Calsites database. No longer updated by the state agency. It has been replaced by ENVIROSTOR.

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GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
Date of Government Version: 08/08/2005
Date Data Arrived at EDR: 08/03/2006
Date Made Active in Reports: 08/24/2006
Number of Days to Update: 21
Source: Department of Toxic Substance Control
Telephone: 916-323-3400
Last EDR Contact: 02/23/2009
Next Scheduled EDR Contact: 05/25/2009
Data Release Frequency: No Update Planned
SCH: School Property Evaluation Program
This category contains proposed and existing school sites that are being evaluated by DTSC for possible hazardous materials contamination. In some cases, these properties may be listed in the CalSites category depending on the level of threat to public health and safety or the environment they pose.

Date of Government Version: 08/31/2016
Date Data Arrived at EDR: 11/18/2016
Date Made Active in Reports: 12/22/2016
Number of Days to Update: 34
Source: Department of Toxic Substances Control
Telephone: 916-255-6504
Last EDR Contact: 11/07/2016
Next Scheduled EDR Contact: 01/23/2017
Data Release Frequency: Varies
TOXIC PITS: Toxic Pits Cleanup Act Sites
Toxic PITS Cleanup Act Sites. TOXIC PITS identifies sites suspected of containing hazardous substances where cleanup has not yet been completed.

Date of Government Version: 07/01/1995
Date Data Arrived at EDR: 08/30/1995
Date Made Active in Reports: 09/26/1995
Number of Days to Update: 27
Source: State Water Resources Control Board
Telephone: 916-227-4364
Last EDR Contact: 01/26/2009
Next Scheduled EDR Contact: 04/27/2009
Data Release Frequency: No Update Planned
US CDL: Clandestine Drug Labs
A listing of clandestine drug lab locations. The U.S. Department of Justice ("the Department") provides this web site as a public service. It contains addresses of some locations where law enforcement agencies reported they found chemicals or other items that indicated the presence of either clandestine drug laboratories or dumpsites.

In most cases, the source of the entries is not the Department, and the Department has not verified the entry and does not guarantee its accuracy. Members of the public must verify the accuracy of all entries by, for example, contacting local law enforcement and local health departments.

Date of Government Version: 08/30/2016
Date Data Arrived at EDR: 09/06/2016
Date Made Active in Reports: 09/23/2016
Number of Days to Update: 17
Source: Drug Enforcement Administration
Telephone: 202-307-1000
Last EDR Contact: 11/29/2016
Next Scheduled EDR Contact: 03/13/2017
Data Release Frequency: Quarterly
Local Lists of Registered Storage Tanks
SWEEPS UST: SWEEPS UST Listing
Statewide Environmental Evaluation and Planning System. This underground storage tank listing was updated and maintained by a company contacted by the SWRCB in the early 1990’s. The listing is no longer updated or maintained.

The local agency is the contact for more information on a site on the SWEEPS list.

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GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
Date of Government Version: 06/01/1994
Date Data Arrived at EDR: 07/07/2005
Date Made Active in Reports: 08/11/2005
Number of Days to Update: 35
Source: State Water Resources Control Board
Telephone: N/A
Last EDR Contact: 06/03/2005
Next Scheduled EDR Contact: N/A
Data Release Frequency: No Update Planned
UST MENDOCINO: Mendocino County UST Database
A listing of underground storage tank locations in Mendocino County.

Date of Government Version: 09/22/2016
Date Data Arrived at EDR: 09/27/2016
Date Made Active in Reports: 10/20/2016
Number of Days to Update: 23
Source: Department of Public Health
Telephone: 707-463-4466
Last EDR Contact: 11/28/2016
Next Scheduled EDR Contact: 03/13/2017
Data Release Frequency: Annually
HIST UST: Hazardous Substance Storage Container Database The Hazardous Substance Storage Container Database is a historical listing of UST sites. Refer to local/county source for current data.

Date of Government Version: 10/15/1990
Date Data Arrived at EDR: 01/25/1991
Date Made Active in Reports: 02/12/1991
Number of Days to Update: 18
Source: State Water Resources Control Board
Telephone: 916-341-5851
Last EDR Contact: 07/26/2001
Next Scheduled EDR Contact: N/A
Data Release Frequency: No Update Planned
CA FID UST: Facility Inventory Database
The Facility Inventory Database (FID) contains a historical listing of active and inactive underground storage tank locations from the State Water Resource Control Board. Refer to local/county source for current data.

Date of Government Version: 10/31/1994
Date Data Arrived at EDR: 09/05/1995
Date Made Active in Reports: 09/29/1995
Number of Days to Update: 24
Source: California Environmental Protection Agency
Telephone: 916-341-5851
Last EDR Contact: 12/28/1998
Next Scheduled EDR Contact: N/A
Data Release Frequency: No Update Planned
Local Land Records
LIENS: Environmental Liens Listing
A listing of property locations with environmental liens for California where DTSC is a lien holder.

Date of Government Version: 08/25/2016
Date Data Arrived at EDR: 09/06/2016
Date Made Active in Reports: 10/14/2016
Number of Days to Update: 38
Source: Department of Toxic Substances Control
Telephone: 916-323-3400
Last EDR Contact: 12/02/2016
Next Scheduled EDR Contact: 03/20/2017
Data Release Frequency: Varies
LIENS 2: CERCLA Lien Information
A Federal CERCLA (’Superfund’) lien can exist by operation of law at any site or property at which EPA has spent Superfund monies. These monies are spent to investigate and address releases and threatened releases of contamination.

CERCLIS provides information as to the identity of these sites and properties.

Date of Government Version: 02/18/2014
Date Data Arrived at EDR: 03/18/2014
Date Made Active in Reports: 04/24/2014
Number of Days to Update: 37
Source: Environmental Protection Agency
Telephone: 202-564-6023
Last EDR Contact: 10/28/2016
Next Scheduled EDR Contact: 02/06/2017
Data Release Frequency: Varies
DEED: Deed Restriction Listing
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GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
Site Mitigation and Brownfields Reuse Program Facility Sites with Deed Restrictions & Hazardous Waste Management Program Facility Sites with Deed / Land Use Restriction. The DTSC Site Mitigation and Brownfields Reuse Program (SMBRP) list includes sites cleaned up under the program’s oversight and generally does not include current or former hazardous waste facilities that required a hazardous waste facility permit. The list represents deed restrictions that are active. Some sites have multiple deed restrictions. The DTSC Hazardous Waste Management Program (HWMP) has developed a list of current or former hazardous waste facilities that have a recorded land use restriction at the local county recorder’s office. The land use restrictions on this list were required by the DTSC HWMP as a result of the presence of hazardous substances that remain on site after the facility (or part of the facility) has been closed or cleaned up. The types of land use restriction include deed notice, deed restriction, or a land use restriction that binds current and future owners.

Date of Government Version: 09/06/2016
Date Data Arrived at EDR: 09/07/2016
Date Made Active in Reports: 10/14/2016
Number of Days to Update: 37
Source: DTSC and SWRCB
Telephone: 916-323-3400
Last EDR Contact: 12/06/2016
Next Scheduled EDR Contact: 03/20/2017
Data Release Frequency: Semi-Annually
Records of Emergency Release Reports
HMIRS: Hazardous Materials Information Reporting System Hazardous Materials Incident Report System. HMIRS contains hazardous material spill incidents reported to DOT.

Date of Government Version: 06/27/2016
Date Data Arrived at EDR: 06/28/2016
Date Made Active in Reports: 09/23/2016
Number of Days to Update: 87
Source: U.S. Department of Transportation
Telephone: 202-366-4555
Last EDR Contact: 09/27/2016
Next Scheduled EDR Contact: 01/09/2017
Data Release Frequency: Annually
CHMIRS: California Hazardous Material Incident Report System California Hazardous Material Incident Reporting System. CHMIRS contains information on reported hazardous material incidents (accidental releases or spills).

Date of Government Version: 06/03/2016
Date Data Arrived at EDR: 07/26/2016
Date Made Active in Reports: 09/23/2016
Number of Days to Update: 59
Source: Office of Emergency Services
Telephone: 916-845-8400
Last EDR Contact: 10/26/2016
Next Scheduled EDR Contact: 02/06/2017
Data Release Frequency: Varies
LDS: Land Disposal Sites Listing
Land Disposal sites (Landfills) included in GeoTracker. GeoTracker is the Water Boards data management system for sites that impact, or have the potential to impact, water quality in California, with emphasis on groundwater.

Date of Government Version: 09/12/2016
Date Data Arrived at EDR: 09/13/2016
Date Made Active in Reports: 10/14/2016
Number of Days to Update: 31
Source: State Water Qualilty Control Board
Telephone: 866-480-1028
Last EDR Contact: 12/14/2016
Next Scheduled EDR Contact: 03/27/2017
Data Release Frequency: Quarterly
MCS: Military Cleanup Sites Listing
Military sites (consisting of: Military UST sites; Military Privatized sites; and Military Cleanup sites [formerly known as DoD non UST]) included in GeoTracker. GeoTracker is the Water Boards data management system for sites that impact, or have the potential to impact, water quality in California, with emphasis on groundwater.

GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
SPILLS 90: SPILLS90 data from FirstSearch
Spills 90 includes those spill and release records available exclusively from FirstSearch databases. Typically, they may include chemical, oil and/or hazardous substance spills recorded after 1990. Duplicate records that are already included in EDR incident and release records are not included in Spills 90.

Date of Government Version: 06/06/2012
Date Data Arrived at EDR: 01/03/2013
Date Made Active in Reports: 02/22/2013
Number of Days to Update: 50
Source: FirstSearch
Telephone: N/A
Last EDR Contact: 01/03/2013
Next Scheduled EDR Contact: N/A
Data Release Frequency: No Update Planned
Other Ascertainable Records
RCRA NonGen / NLR: RCRA - Non Generators / No Longer Regulated RCRAInfo is EPA’s comprehensive information system, providing access to data supporting the Resource Conservation and Recovery Act (RCRA) of 1976 and the Hazardous and Solid Waste Amendments (HSWA) of 1984. The database includes selective information on sites which generate, transport, store, treat and/or dispose of hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA). Non-Generators do not presently generate hazardous waste.

Date of Government Version: 01/31/2015
Date Data Arrived at EDR: 07/08/2015
Date Made Active in Reports: 10/13/2015
Number of Days to Update: 97
Source: U.S. Army Corps of Engineers
Telephone: 202-528-4285
Last EDR Contact: 12/08/2016
Next Scheduled EDR Contact: 03/20/2017
Data Release Frequency: Varies
DOD: Department of Defense Sites
This data set consists of federally owned or administered lands, administered by the Department of Defense, that have any area equal to or greater than 640 acres of the United States, Puerto Rico, and the U.S. Virgin Islands.

Date of Government Version: 12/31/2005
Date Data Arrived at EDR: 11/10/2006
Date Made Active in Reports: 01/11/2007
Number of Days to Update: 62
Source: USGS
Telephone: 888-275-8747
Last EDR Contact: 10/14/2016
Next Scheduled EDR Contact: 01/23/2017
Data Release Frequency: Semi-Annually
FEDLAND: Federal and Indian Lands
Federally and Indian administrated lands of the United States. Lands included are administrated by: Army Corps of Engineers, Bureau of Reclamation, National Wild and Scenic River, National Wildlife Refuge, Public Domain Land, Wilderness, Wilderness Study Area, Wildlife Management Area, Bureau of Indian Affairs, Bureau of Land Management, Department of Justice, Forest Service, Fish and Wildlife Service, National Park Service.

Date of Government Version: 12/31/2005
Date Data Arrived at EDR: 02/06/2006
Date Made Active in Reports: 01/11/2007
Number of Days to Update: 339
Source: U.S. Geological Survey
Telephone: 888-275-8747
Last EDR Contact: 10/14/2016
Next Scheduled EDR Contact: 01/23/2017
Data Release Frequency: N/A
SCRD DRYCLEANERS: State Coalition for Remediation of Drycleaners Listing The State Coalition for Remediation of Drycleaners was established in 1998, with support from the U.S. EPA Office of Superfund Remediation and Technology Innovation. It is comprised of representatives of states with established drycleaner remediation programs. Currently the member states are Alabama, Connecticut, Florida, Illinois, Kansas, Minnesota, Missouri, North Carolina, Oregon, South Carolina, Tennessee, Texas, and Wisconsin.

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GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
Date of Government Version: 03/07/2011
Date Data Arrived at EDR: 03/09/2011
Date Made Active in Reports: 05/02/2011
Number of Days to Update: 54
Source: Environmental Protection Agency
Telephone: 615-532-8599
Last EDR Contact: 11/17/2016
Next Scheduled EDR Contact: 11/28/2016
Data Release Frequency: Varies
US FIN ASSUR: Financial Assurance Information
All owners and operators of facilities that treat, store, or dispose of hazardous waste are required to provide proof that they will have sufficient funds to pay for the clean up, closure, and post-closure care of their facilities.

Date of Government Version: 07/12/2016
Date Data Arrived at EDR: 08/17/2016
Date Made Active in Reports: 10/21/2016
Number of Days to Update: 65
Source: Environmental Protection Agency
Telephone: 202-566-1917
Last EDR Contact: 11/16/2016
Next Scheduled EDR Contact: 02/27/2017
Data Release Frequency: Quarterly
EPA WATCH LIST: EPA WATCH LIST
EPA maintains a "Watch List" to facilitate dialogue between EPA, state and local environmental agencies on enforcement matters relating to facilities with alleged violations identified as either significant or high priority. Being on the Watch List does not mean that the facility has actually violated the law only that an investigation by EPA or a state or local environmental agency has led those organizations to allege that an unproven violation has in fact occurred. Being on the Watch List does not represent a higher level of concern regarding the alleged violations that were detected, but instead indicates cases requiring additional dialogue between EPA, state and local agencies - primarily because of the length of time the alleged violation has gone unaddressed or unresolved.

Date of Government Version: 08/30/2013
Date Data Arrived at EDR: 03/21/2014
Date Made Active in Reports: 06/17/2014
Number of Days to Update: 88
Source: Environmental Protection Agency
Telephone: 617-520-3000
Last EDR Contact: 11/08/2016
Next Scheduled EDR Contact: 02/20/2017
Data Release Frequency: Quarterly
2020 COR ACTION: 2020 Corrective Action Program List
The EPA has set ambitious goals for the RCRA Corrective Action program by creating the 2020 Corrective Action Universe. This RCRA cleanup baseline includes facilities expected to need corrective action. The 2020 universe contains a wide variety of sites. Some properties are heavily contaminated while others were contaminated but have since been cleaned up. Still others have not been fully investigated yet, and may require little or no remediation.

Inclusion in the 2020 Universe does not necessarily imply failure on the part of a facility to meet its RCRA obligations.

Date of Government Version: 04/22/2013
Date Data Arrived at EDR: 03/03/2015
Date Made Active in Reports: 03/09/2015
Number of Days to Update: 6
Source: Environmental Protection Agency
Telephone: 703-308-4044
Last EDR Contact: 11/11/2016
Next Scheduled EDR Contact: 02/20/2017
Data Release Frequency: Varies
TSCA: Toxic Substances Control Act
Toxic Substances Control Act. TSCA identifies manufacturers and importers of chemical substances included on the TSCA Chemical Substance Inventory list. It includes data on the production volume of these substances by plant site.

Date of Government Version: 12/31/2012
Date Data Arrived at EDR: 01/15/2015
Date Made Active in Reports: 01/29/2015
Number of Days to Update: 14
Source: EPA
Telephone: 202-260-5521
Last EDR Contact: 12/23/2016
Next Scheduled EDR Contact: 04/03/2017
Data Release Frequency: Every 4 Years
TRIS: Toxic Chemical Release Inventory System
Toxic Release Inventory System. TRIS identifies facilities which release toxic chemicals to the air, water and land in reportable quantities under SARA Title III Section 313.

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GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
Date of Government Version: 12/31/2014
Date Data Arrived at EDR: 11/24/2015
Date Made Active in Reports: 04/05/2016
Number of Days to Update: 133
Source: EPA
Telephone: 202-566-0250
Last EDR Contact: 11/22/2016
Next Scheduled EDR Contact: 03/06/2017
Data Release Frequency: Annually
SSTS: Section 7 Tracking Systems
Section 7 of the Federal Insecticide, Fungicide and Rodenticide Act, as amended (92 Stat. 829) requires all registered pesticide-producing establishments to submit a report to the Environmental Protection Agency by March 1st each year. Each establishment must report the types and amounts of pesticides, active ingredients and devices being produced, and those having been produced and sold or distributed in the past year.

Date of Government Version: 12/31/2009
Date Data Arrived at EDR: 12/10/2010
Date Made Active in Reports: 02/25/2011
Number of Days to Update: 77
Source: EPA
Telephone: 202-564-4203
Last EDR Contact: 10/24/2016
Next Scheduled EDR Contact: 02/06/2017
Data Release Frequency: Annually
ROD: Records Of Decision
Record of Decision. ROD documents mandate a permanent remedy at an NPL (Superfund) site containing technical and health information to aid in the cleanup.

Date of Government Version: 11/25/2013
Date Data Arrived at EDR: 12/12/2013
Date Made Active in Reports: 02/24/2014
Number of Days to Update: 74
Source: EPA
Telephone: 703-416-0223
Last EDR Contact: 12/06/2016
Next Scheduled EDR Contact: 03/20/2017
Data Release Frequency: Annually
RMP: Risk Management Plans
When Congress passed the Clean Air Act Amendments of 1990, it required EPA to publish regulations and guidance for chemical accident prevention at facilities using extremely hazardous substances. The Risk Management Program Rule (RMP Rule) was written to implement Section 112(r) of these amendments. The rule, which built upon existing industry codes and standards, requires companies of all sizes that use certain flammable and toxic substances to develop a Risk Management Program, which includes a(n): Hazard assessment that details the potential effects of an accidental release, an accident history of the last five years, and an evaluation of worst-case and alternative accidental releases; Prevention program that includes safety precautions and maintenance, monitoring, and employee training measures; and Emergency response program that spells out emergency health care, employee training measures and procedures for informing the public and response agencies (e.g the fire department) should an accident occur.

Date of Government Version: 08/01/2016
Date Data Arrived at EDR: 08/22/2016
Date Made Active in Reports: 11/11/2016
Number of Days to Update: 81
Source: Environmental Protection Agency
Telephone: 202-564-8600
Last EDR Contact: 11/18/2016
Next Scheduled EDR Contact: 02/06/2017
Data Release Frequency: Varies
RAATS: RCRA Administrative Action Tracking System
RCRA Administration Action Tracking System. RAATS contains records based on enforcement actions issued under RCRA pertaining to major violators and includes administrative and civil actions brought by the EPA. For administration actions after September 30, 1995, data entry in the RAATS database was discontinued. EPA will retain a copy of the database for historical records. It was necessary to terminate RAATS because a decrease in agency resources made it impossible to continue to update the information contained in the database.

Date of Government Version: 04/17/1995
Date Data Arrived at EDR: 07/03/1995
Date Made Active in Reports: 08/07/1995
Number of Days to Update: 35
Source: EPA
Telephone: 202-564-4104
Last EDR Contact: 06/02/2008
Next Scheduled EDR Contact: 09/01/2008
Data Release Frequency: No Update Planned
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GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
PRP: Potentially Responsible Parties
A listing of verified Potentially Responsible Parties
Date of Government Version: 10/25/2013
Date Data Arrived at EDR: 10/17/2014
Date Made Active in Reports: 10/20/2014
Number of Days to Update: 3
Source: EPA
Telephone: 202-564-6023
Last EDR Contact: 11/07/2016
Next Scheduled EDR Contact: 02/20/2017
Data Release Frequency: Quarterly
PADS: PCB Activity Database System
PCB Activity Database. PADS Identifies generators, transporters, commercial storers and/or brokers and disposers of PCB’s who are required to notify the EPA of such activities.

Date of Government Version: 01/20/2016
Date Data Arrived at EDR: 04/28/2016
Date Made Active in Reports: 09/02/2016
Number of Days to Update: 127
Source: EPA
Telephone: 202-566-0500
Last EDR Contact: 10/14/2016
Next Scheduled EDR Contact: 01/23/2017
Data Release Frequency: Annually
ICIS: Integrated Compliance Information System
The Integrated Compliance Information System (ICIS) supports the information needs of the national enforcement and compliance program as well as the unique needs of the National Pollutant Discharge Elimination System (NPDES) program.

Date of Government Version: 07/27/2016
Date Data Arrived at EDR: 08/05/2016
Date Made Active in Reports: 10/21/2016
Number of Days to Update: 77
Source: Environmental Protection Agency
Telephone: 202-564-5088
Last EDR Contact: 10/11/2016
Next Scheduled EDR Contact: 01/23/2017
Data Release Frequency: Quarterly
FTTS: FIFRA/ TSCA Tracking System - FIFRA (Federal Insecticide, Fungicide, & Rodenticide Act)/TSCA (Toxic Substances Control Act) FTTS tracks administrative cases and pesticide enforcement actions and compliance activities related to FIFRA, TSCA and EPCRA (Emergency Planning and Community Right-to-Know Act). To maintain currency, EDR contacts the Agency on a quarterly basis.

Date of Government Version: 04/09/2009
Date Data Arrived at EDR: 04/16/2009
Date Made Active in Reports: 05/11/2009
Number of Days to Update: 25
Source: EPA/Office of Prevention, Pesticides and Toxic Substances Telephone: 202-566-1667
Last EDR Contact: 11/17/2016
Next Scheduled EDR Contact: 03/06/2017
Data Release Frequency: Quarterly
FTTS INSP: FIFRA/ TSCA Tracking System - FIFRA (Federal Insecticide, Fungicide, & Rodenticide Act)/TSCA (Toxic Substances Control Act) A listing of FIFRA/TSCA Tracking System (FTTS) inspections and enforcements.

Date of Government Version: 04/09/2009
Date Data Arrived at EDR: 04/16/2009
Date Made Active in Reports: 05/11/2009
Number of Days to Update: 25
Source: EPA
Telephone: 202-566-1667
Last EDR Contact: 11/17/2016
Next Scheduled EDR Contact: 03/06/2017
Data Release Frequency: Quarterly
MLTS: Material Licensing Tracking System
MLTS is maintained by the Nuclear Regulatory Commission and contains a list of approximately 8,100 sites which possess or use radioactive materials and which are subject to NRC licensing requirements. To maintain currency, EDR contacts the Agency on a quarterly basis.

Date of Government Version: 08/30/2016
Date Data Arrived at EDR: 09/08/2016
Date Made Active in Reports: 10/21/2016
Number of Days to Update: 43
Source: Nuclear Regulatory Commission
Telephone: 301-415-7169
Last EDR Contact: 11/07/2016
Next Scheduled EDR Contact: 02/20/2017
Data Release Frequency: Quarterly
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GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
COAL ASH DOE: Steam-Electric Plant Operation Data
A listing of power plants that store ash in surface ponds.

Date of Government Version: 12/31/2005
Date Data Arrived at EDR: 08/07/2009
Date Made Active in Reports: 10/22/2009
Number of Days to Update: 76
Source: Department of Energy
Telephone: 202-586-8719
Last EDR Contact: 12/06/2016
Next Scheduled EDR Contact: 03/20/2017
Data Release Frequency: Varies
COAL ASH EPA: Coal Combustion Residues Surface Impoundments List A listing of coal combustion residues surface impoundments with high hazard potential ratings.

Date of Government Version: 07/01/2014
Date Data Arrived at EDR: 09/10/2014
Date Made Active in Reports: 10/20/2014
Number of Days to Update: 40
Source: Environmental Protection Agency
Telephone: N/A
Last EDR Contact: 12/06/2016
Next Scheduled EDR Contact: 03/20/2017
Data Release Frequency: Varies
PCB TRANSFORMER: PCB Transformer Registration Database The database of PCB transformer registrations that includes all PCB registration submittals.

Date of Government Version: 02/01/2011
Date Data Arrived at EDR: 10/19/2011
Date Made Active in Reports: 01/10/2012
Number of Days to Update: 83
Source: Environmental Protection Agency
Telephone: 202-566-0517
Last EDR Contact: 10/28/2016
Next Scheduled EDR Contact: 02/06/2017
Data Release Frequency: Varies
RADINFO: Radiation Information Database
The Radiation Information Database (RADINFO) contains information about facilities that are regulated by U.S.

Environmental Protection Agency (EPA) regulations for radiation and radioactivity.

Date of Government Version: 10/03/2016
Date Data Arrived at EDR: 10/05/2016
Date Made Active in Reports: 10/21/2016
Number of Days to Update: 16
Source: Environmental Protection Agency
Telephone: 202-343-9775
Last EDR Contact: 10/05/2016
Next Scheduled EDR Contact: 01/16/2017
Data Release Frequency: Quarterly
HIST FTTS: FIFRA/TSCA Tracking System Administrative Case Listing A complete administrative case listing from the FIFRA/TSCA Tracking System (FTTS) for all ten EPA regions. The information was obtained from the National Compliance Database (NCDB). NCDB supports the implementation of FIFRA (Federal Insecticide, Fungicide, and Rodenticide Act) and TSCA (Toxic Substances Control Act). Some EPA regions are now closing out records. Because of that, and the fact that some EPA regions are not providing EPA Headquarters with updated records, it was decided to create a HIST FTTS database. It included records that may not be included in the newer FTTS database updates. This database is no longer updated.

Date of Government Version: 10/19/2006
Date Data Arrived at EDR: 03/01/2007
Date Made Active in Reports: 04/10/2007
Number of Days to Update: 40
Source: Environmental Protection Agency
Telephone: 202-564-2501
Last EDR Contact: 12/17/2007
Next Scheduled EDR Contact: 03/17/2008
Data Release Frequency: No Update Planned
HIST FTTS INSP: FIFRA/TSCA Tracking System Inspection & Enforcement Case Listing A complete inspection and enforcement case listing from the FIFRA/TSCA Tracking System (FTTS) for all ten EPA regions. The information was obtained from the National Compliance Database (NCDB). NCDB supports the implementation of FIFRA (Federal Insecticide, Fungicide, and Rodenticide Act) and TSCA (Toxic Substances Control Act). Some EPA regions are now closing out records. Because of that, and the fact that some EPA regions are not providing EPA Headquarters with updated records, it was decided to create a HIST FTTS database. It included records that may not be included in the newer FTTS database updates. This database is no longer updated.

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GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
Date of Government Version: 10/19/2006
Date Data Arrived at EDR: 03/01/2007
Date Made Active in Reports: 04/10/2007
Number of Days to Update: 40
Source: Environmental Protection Agency
Telephone: 202-564-2501
Last EDR Contact: 12/17/2008
Next Scheduled EDR Contact: 03/17/2008
Data Release Frequency: No Update Planned
DOT OPS: Incident and Accident Data
Department of Transporation, Office of Pipeline Safety Incident and Accident data.

Date of Government Version: 07/31/2012
Date Data Arrived at EDR: 08/07/2012
Date Made Active in Reports: 09/18/2012
Number of Days to Update: 42
Source: Department of Transporation, Office of Pipeline Safety Telephone: 202-366-4595
Last EDR Contact: 11/02/2016
Next Scheduled EDR Contact: 02/13/2017
Data Release Frequency: Varies
CONSENT: Superfund (CERCLA) Consent Decrees
Major legal settlements that establish responsibility and standards for cleanup at NPL (Superfund) sites. Released periodically by United States District Courts after settlement by parties to litigation matters.

Date of Government Version: 03/31/2016
Date Data Arrived at EDR: 08/01/2016
Date Made Active in Reports: 09/23/2016
Number of Days to Update: 53
Source: Department of Justice, Consent Decree Library
Telephone: Varies
Last EDR Contact: 09/26/2016
Next Scheduled EDR Contact: 01/09/2017
Data Release Frequency: Varies
BRS: Biennial Reporting System
The Biennial Reporting System is a national system administered by the EPA that collects data on the generation and management of hazardous waste. BRS captures detailed data from two groups: Large Quantity Generators (LQG) and Treatment, Storage, and Disposal Facilities.

Date of Government Version: 12/31/2013
Date Data Arrived at EDR: 02/24/2015
Date Made Active in Reports: 09/30/2015
Number of Days to Update: 218
Source: EPA/NTIS
Telephone: 800-424-9346
Last EDR Contact: 11/23/2016
Next Scheduled EDR Contact: 03/06/2017
Data Release Frequency: Biennially
INDIAN RESERV: Indian Reservations
This map layer portrays Indian administered lands of the United States that have any area equal to or greater than 640 acres.

Date of Government Version: 12/31/2005
Date Data Arrived at EDR: 12/08/2006
Date Made Active in Reports: 01/11/2007
Number of Days to Update: 34
Source: USGS
Telephone: 202-208-3710
Last EDR Contact: 10/14/2016
Next Scheduled EDR Contact: 01/23/2017
Data Release Frequency: Semi-Annually
FUSRAP: Formerly Utilized Sites Remedial Action Program DOE established the Formerly Utilized Sites Remedial Action Program (FUSRAP) in 1974 to remediate sites where radioactive contamination remained from Manhattan Project and early U.S. Atomic Energy Commission (AEC) operations.

Date of Government Version: 07/21/2016
Date Data Arrived at EDR: 07/26/2016
Date Made Active in Reports: 09/23/2016
Number of Days to Update: 59
Source: Department of Energy
Telephone: 202-586-3559
Last EDR Contact: 11/08/2016
Next Scheduled EDR Contact: 02/20/2017
Data Release Frequency: Varies
UMTRA: Uranium Mill Tailings Sites
Uranium ore was mined by private companies for federal government use in national defense programs. When the mills shut down, large piles of the sand-like material (mill tailings) remain after uranium has been extracted from the ore. Levels of human exposure to radioactive materials from the piles are low; however, in some cases tailings were used as construction materials before the potential health hazards of the tailings were recognized.

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GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
Date of Government Version: 09/14/2010
Date Data Arrived at EDR: 10/07/2011
Date Made Active in Reports: 03/01/2012
Number of Days to Update: 146
Source: Department of Energy
Telephone: 505-845-0011
Last EDR Contact: 09/09/2016
Next Scheduled EDR Contact: 12/05/2016
Data Release Frequency: Varies
LEAD SMELTER 1: Lead Smelter Sites
A listing of former lead smelter site locations.

Date of Government Version: 03/07/2016
Date Data Arrived at EDR: 04/07/2016
Date Made Active in Reports: 09/02/2016
Number of Days to Update: 148
Source: Environmental Protection Agency
Telephone: 703-603-8787
Last EDR Contact: 10/20/2016
Next Scheduled EDR Contact: 01/16/2017
Data Release Frequency: Varies
LEAD SMELTER 2: Lead Smelter Sites
A list of several hundred sites in the U.S. where secondary lead smelting was done from 1931and 1964. These sites may pose a threat to public health through ingestion or inhalation of contaminated soil or dust Date of Government Version: 04/05/2001
Date Data Arrived at EDR: 10/27/2010
Date Made Active in Reports: 12/02/2010
Number of Days to Update: 36
Source: American Journal of Public Health
Telephone: 703-305-6451
Last EDR Contact: 12/02/2009
Next Scheduled EDR Contact: N/A
Data Release Frequency: No Update Planned
US AIRS (AFS): Aerometric Information Retrieval System Facility Subsystem (AFS) The database is a sub-system of Aerometric Information Retrieval System (AIRS). AFS contains compliance data on air pollution point sources regulated by the U.S. EPA and/or state and local air regulatory agencies. This information comes from source reports by various stationary sources of air pollution, such as electric power plants, steel mills, factories, and universities, and provides information about the air pollutants they produce. Action, air program, air program pollutant, and general level plant data. It is used to track emissions and compliance data from industrial plants.

Date of Government Version: 06/30/2016
Date Data Arrived at EDR: 07/25/2016
Date Made Active in Reports: 10/21/2016
Number of Days to Update: 88
Source: EPA
Telephone: 202-564-2496
Last EDR Contact: 12/22/2016
Next Scheduled EDR Contact: 04/10/2017
Data Release Frequency: Annually
US AIRS MINOR: Air Facility System Data
A listing of minor source facilities.

Date of Government Version: 06/30/2016
Date Data Arrived at EDR: 07/25/2016
Date Made Active in Reports: 10/21/2016
Number of Days to Update: 88
Source: EPA
Telephone: 202-564-2496
Last EDR Contact: 12/22/2016
Next Scheduled EDR Contact: 04/10/2017
Data Release Frequency: Annually
US MINES: Mines Master Index File
Contains all mine identification numbers issued for mines active or opened since 1971. The data also includes violation information.

Date of Government Version: 08/05/2016
Date Data Arrived at EDR: 09/01/2016
Date Made Active in Reports: 09/23/2016
Number of Days to Update: 22
Source: Department of Labor, Mine Safety and Health Administration Telephone: 303-231-5959
Last EDR Contact: 12/01/2016
Next Scheduled EDR Contact: 03/13/2017
Data Release Frequency: Semi-Annually
US MINES 2: Ferrous and Nonferrous Metal Mines Database Listing This map layer includes ferrous (ferrous metal mines are facilities that extract ferrous metals, such as iron ore or molybdenum) and nonferrous (Nonferrous metal mines are facilities that extract nonferrous metals, such as gold, silver, copper, zinc, and lead) metal mines in the United States.

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GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
Date of Government Version: 12/05/2005
Date Data Arrived at EDR: 02/29/2008
Date Made Active in Reports: 04/18/2008
Number of Days to Update: 49
Source: USGS
Telephone: 703-648-7709
Last EDR Contact: 12/12/2016
Next Scheduled EDR Contact: 03/13/2017
Data Release Frequency: Varies
US MINES 3: Active Mines & Mineral Plants Database Listing Active Mines and Mineral Processing Plant operations for commodities monitored by the Minerals Information Team of the USGS.

Date of Government Version: 04/14/2011
Date Data Arrived at EDR: 06/08/2011
Date Made Active in Reports: 09/13/2011
Number of Days to Update: 97
Source: USGS
Telephone: 703-648-7709
Last EDR Contact: 12/02/2016
Next Scheduled EDR Contact: 03/13/2017
Data Release Frequency: Varies
FINDS: Facility Index System/Facility Registry System
Facility Index System. FINDS contains both facility information and ’pointers’ to other sources that contain more detail. EDR includes the following FINDS databases in this report: PCS (Permit Compliance System), AIRS (Aerometric Information Retrieval System), DOCKET (Enforcement Docket used to manage and track information on civil judicial enforcement cases for all environmental statutes), FURS (Federal Underground Injection Control), C-DOCKET (Criminal Docket System used to track criminal enforcement actions for all environmental statutes), FFIS (Federal Facilities Information System), STATE (State Environmental Laws and Statutes), and PADS (PCB Activity Data System).

Date of Government Version: 07/15/2016
Date Data Arrived at EDR: 09/07/2016
Date Made Active in Reports: 11/11/2016
Number of Days to Update: 65
Source: EPA
Telephone: (415) 947-8000
Last EDR Contact: 12/06/2016
Next Scheduled EDR Contact: 03/20/2017
Data Release Frequency: Quarterly
UXO: Unexploded Ordnance Sites
A listing of unexploded ordnance site locations
Date of Government Version: 10/25/2015
Date Data Arrived at EDR: 01/29/2016
Date Made Active in Reports: 04/05/2016
Number of Days to Update: 67
Source: Department of Defense
Telephone: 571-373-0407
Last EDR Contact: 12/05/2016
Next Scheduled EDR Contact: 01/30/2017
Data Release Frequency: Varies
DOCKET HWC: Hazardous Waste Compliance Docket Listing
A complete list of the Federal Agency Hazardous Waste Compliance Docket Facilities.

Date of Government Version: 06/02/2016
Date Data Arrived at EDR: 06/03/2016
Date Made Active in Reports: 09/02/2016
Number of Days to Update: 91
Source: Environmental Protection Agency
Telephone: 202-564-0527
Last EDR Contact: 11/28/2016
Next Scheduled EDR Contact: 03/13/2017
Data Release Frequency: Varies
CA BOND EXP. PLAN: Bond Expenditure Plan
Department of Health Services developed a site-specific expenditure plan as the basis for an appropriation of Hazardous Substance Cleanup Bond Act funds. It is not updated.

Date of Government Version: 01/01/1989
Date Data Arrived at EDR: 07/27/1994
Date Made Active in Reports: 08/02/1994
Number of Days to Update: 6
Source: Department of Health Services
Telephone: 916-255-2118
Last EDR Contact: 05/31/1994
Next Scheduled EDR Contact: N/A
Data Release Frequency: No Update Planned
CORTESE: "Cortese" Hazardous Waste & Substances Sites List The sites for the list are designated by the State Water Resource Control Board (LUST), the Integrated Waste Board (SWF/LS), and the Department of Toxic Substances Control (Cal-Sites).

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GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
Date of Government Version: 09/26/2016
Date Data Arrived at EDR: 09/27/2016
Date Made Active in Reports: 11/18/2016
Number of Days to Update: 52
Source: CAL EPA/Office of Emergency Information
Telephone: 916-323-3400
Last EDR Contact: 09/27/2016
Next Scheduled EDR Contact: 01/09/2017
Data Release Frequency: Quarterly
DRYCLEANERS: Cleaner Facilities
A list of drycleaner related facilities that have EPA ID numbers. These are facilities with certain SIC codes:
power laundries, family and commercial; garment pressing and cleaner’s agents; linen supply; coin-operated laundries and cleaning; drycleaning plants, except rugs; carpet and upholster cleaning; industrial launderers; laundry and garment services.

Date of Government Version: 09/02/2016
Date Data Arrived at EDR: 09/27/2016
Date Made Active in Reports: 12/15/2016
Number of Days to Update: 79
Source: Department of Toxic Substance Control
Telephone: 916-327-4498
Last EDR Contact: 12/02/2016
Next Scheduled EDR Contact: 03/20/2017
Data Release Frequency: Annually
EMI: Emissions Inventory Data
Toxics and criteria pollutant emissions data collected by the ARB and local air pollution agencies.

Date of Government Version: 12/31/2014
Date Data Arrived at EDR: 09/23/2016
Date Made Active in Reports: 10/24/2016
Number of Days to Update: 31
Source: California Air Resources Board
Telephone: 916-322-2990
Last EDR Contact: 12/23/2016
Next Scheduled EDR Contact: 04/03/2017
Data Release Frequency: Varies
ENF: Enforcement Action Listing
A listing of Water Board Enforcement Actions. Formal is everything except Oral/Verbal Communication, Notice of Violation, Expedited Payment Letter, and Staff Enforcement Letter.

Date of Government Version: 08/22/2016
Date Data Arrived at EDR: 08/24/2016
Date Made Active in Reports: 10/05/2016
Number of Days to Update: 42
Source: State Water Resoruces Control Board
Telephone: 916-445-9379
Last EDR Contact: 12/02/2016
Next Scheduled EDR Contact: 02/06/2017
Data Release Frequency: Varies
Financial Assurance 1: Financial Assurance Information Listing Financial Assurance information
Date of Government Version: 04/25/2016
Date Data Arrived at EDR: 04/29/2016
Date Made Active in Reports: 06/21/2016
Number of Days to Update: 53
Source: Department of Toxic Substances Control
Telephone: 916-255-3628
Last EDR Contact: 11/24/2016
Next Scheduled EDR Contact: 02/06/2017
Data Release Frequency: Varies
Financial Assurance 2: Financial Assurance Information Listing A listing of financial assurance information for solid waste facilities. Financial assurance is intended to ensure that resources are available to pay for the cost of closure, post-closure care, and corrective measures if the owner or operator of a regulated facility is unable or unwilling to pay.

Date of Government Version: 08/10/2016
Date Data Arrived at EDR: 08/15/2016
Date Made Active in Reports: 10/05/2016
Number of Days to Update: 51
Source: California Integrated Waste Management Board
Telephone: 916-341-6066
Last EDR Contact: 11/11/2016
Next Scheduled EDR Contact: 02/27/2017
Data Release Frequency: Varies
HAZNET: Facility and Manifest Data
Facility and Manifest Data. The data is extracted from the copies of hazardous waste manifests received each year by the DTSC. The annual volume of manifests is typically 700,000 - 1,000,000 annually, representing approximately 350,000 - 500,000 shipments. Data are from the manifests submitted without correction, and therefore many contain some invalid values for data elements such as generator ID, TSD ID, waste category, and disposal method. This database begins with calendar year 1993.

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GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
Date of Government Version: 12/31/2015
Date Data Arrived at EDR: 10/12/2016
Date Made Active in Reports: 12/15/2016
Number of Days to Update: 64
Source: California Environmental Protection Agency
Telephone: 916-255-1136
Last EDR Contact: 10/12/2016
Next Scheduled EDR Contact: 01/23/2017
Data Release Frequency: Annually
HIST CORTESE: Hazardous Waste & Substance Site List
The sites for the list are designated by the State Water Resource Control Board [LUST], the Integrated Waste Board [SWF/LS], and the Department of Toxic Substances Control [CALSITES]. This listing is no longer updated by the state agency.

Date of Government Version: 04/01/2001
Date Data Arrived at EDR: 01/22/2009
Date Made Active in Reports: 04/08/2009
Number of Days to Update: 76
Source: Department of Toxic Substances Control
Telephone: 916-323-3400
Last EDR Contact: 01/22/2009
Next Scheduled EDR Contact: N/A
Data Release Frequency: No Update Planned
HWP: EnviroStor Permitted Facilities Listing
Detailed information on permitted hazardous waste facilities and corrective action ("cleanups") tracked in EnviroStor.

Date of Government Version: 08/22/2016
Date Data Arrived at EDR: 08/23/2016
Date Made Active in Reports: 10/05/2016
Number of Days to Update: 43
Source: Department of Toxic Substances Control
Telephone: 916-323-3400
Last EDR Contact: 11/22/2016
Next Scheduled EDR Contact: 03/06/2017
Data Release Frequency: Quarterly
HWT: Registered Hazardous Waste Transporter Database
A listing of hazardous waste transporters. In California, unless specifically exempted, it is unlawful for any person to transport hazardous wastes unless the person holds a valid registration issued by DTSC. A hazardous waste transporter registration is valid for one year and is assigned a unique registration number.

Date of Government Version: 10/12/2016
Date Data Arrived at EDR: 10/12/2016
Date Made Active in Reports: 12/15/2016
Number of Days to Update: 64
Source: Department of Toxic Substances Control
Telephone: 916-440-7145
Last EDR Contact: 10/12/2016
Next Scheduled EDR Contact: 01/23/2017
Data Release Frequency: Quarterly
MINES: Mines Site Location Listing
A listing of mine site locations from the Office of Mine Reclamation.

Date of Government Version: 09/12/2016
Date Data Arrived at EDR: 09/14/2016
Date Made Active in Reports: 10/14/2016
Number of Days to Update: 30
Source: Department of Conservation
Telephone: 916-322-1080
Last EDR Contact: 12/15/2016
Next Scheduled EDR Contact: 03/27/2017
Data Release Frequency: Varies
MWMP: Medical Waste Management Program Listing
The Medical Waste Management Program (MWMP) ensures the proper handling and disposal of medical waste by permitting and inspecting medical waste Offsite Treatment Facilities (PDF) and Transfer Stations (PDF) throughout the state. MWMP also oversees all Medical Waste Transporters.

Date of Government Version: 09/06/2016
Date Data Arrived at EDR: 09/07/2016
Date Made Active in Reports: 10/14/2016
Number of Days to Update: 37
Source: Department of Public Health
Telephone: 916-558-1784
Last EDR Contact: 12/06/2016
Next Scheduled EDR Contact: 03/20/2017
Data Release Frequency: Varies
NPDES: NPDES Permits Listing
A listing of NPDES permits, including stormwater.

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GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
Date of Government Version: 05/16/2016
Date Data Arrived at EDR: 05/18/2016
Date Made Active in Reports: 06/23/2016
Number of Days to Update: 36
Source: State Water Resources Control Board
Telephone: 916-445-9379
Last EDR Contact: 11/15/2016
Next Scheduled EDR Contact: 02/27/2017
Data Release Frequency: Quarterly
PEST LIC: Pesticide Regulation Licenses Listing
A listing of licenses and certificates issued by the Department of Pesticide Regulation. The DPR issues licenses and/or certificates to: Persons and businesses that apply or sell pesticides; Pest control dealers and brokers; Persons who advise on agricultural pesticide applications.

Date of Government Version: 09/06/2016
Date Data Arrived at EDR: 09/07/2016
Date Made Active in Reports: 10/14/2016
Number of Days to Update: 37
Source: Department of Pesticide Regulation
Telephone: 916-445-4038
Last EDR Contact: 12/06/2016
Next Scheduled EDR Contact: 03/20/2017
Data Release Frequency: Quarterly
PROC: Certified Processors Database
A listing of certified processors.

Date of Government Version: 09/12/2016
Date Data Arrived at EDR: 09/14/2016
Date Made Active in Reports: 10/14/2016
Number of Days to Update: 30
Source: Department of Conservation
Telephone: 916-323-3836
Last EDR Contact: 12/14/2016
Next Scheduled EDR Contact: 12/26/2016
Data Release Frequency: Quarterly
NOTIFY 65: Proposition 65 Records
Listings of all Proposition 65 incidents reported to counties by the State Water Resources Control Board and the Regional Water Quality Control Board. This database is no longer updated by the reporting agency.

Date of Government Version: 09/19/2016
Date Data Arrived at EDR: 09/20/2016
Date Made Active in Reports: 12/16/2016
Number of Days to Update: 87
Source: State Water Resources Control Board
Telephone: 916-445-3846
Last EDR Contact: 12/16/2016
Next Scheduled EDR Contact: 04/03/2017
Data Release Frequency: No Update Planned
UIC: UIC Listing
A listing of wells identified as underground injection wells, in the California Oil and Gas Wells database.

Date of Government Version: 07/06/2016
Date Data Arrived at EDR: 09/14/2016
Date Made Active in Reports: 10/14/2016
Number of Days to Update: 30
Source: Deaprtment of Conservation
Telephone: 916-445-2408
Last EDR Contact: 12/14/2016
Next Scheduled EDR Contact: 03/27/2017
Data Release Frequency: Varies
WASTEWATER PITS: Oil Wastewater Pits Listing
Water officials discovered that oil producers have been dumping chemical-laden wastewater into hundreds of unlined pits that are operating without proper permits. Inspections completed by the Central Valley Regional Water Quality Control Board revealed the existence of previously unidentified waste sites. The water board?s review found that more than one-third of the region?s active disposal pits are operating without permission.

Date of Government Version: 04/15/2015
Date Data Arrived at EDR: 04/17/2015
Date Made Active in Reports: 06/23/2015
Number of Days to Update: 67
Source: RWQCB, Central Valley Region
Telephone: 559-445-5577
Last EDR Contact: 10/14/2016
Next Scheduled EDR Contact: 01/23/2017
Data Release Frequency: Varies
WDS: Waste Discharge System
Sites which have been issued waste discharge requirements.

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GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
Date of Government Version: 06/19/2007
Date Data Arrived at EDR: 06/20/2007
Date Made Active in Reports: 06/29/2007
Number of Days to Update: 9
Source: State Water Resources Control Board
Telephone: 916-341-5227
Last EDR Contact: 11/16/2016
Next Scheduled EDR Contact: 03/06/2017
Data Release Frequency: Quarterly
WIP: Well Investigation Program Case List
Well Investigation Program case in the San Gabriel and San Fernando Valley area.

Date of Government Version: 07/03/2009
Date Data Arrived at EDR: 07/21/2009
Date Made Active in Reports: 08/03/2009
Number of Days to Update: 13
Source: Los Angeles Water Quality Control Board
Telephone: 213-576-6726
Last EDR Contact: 12/22/2016
Next Scheduled EDR Contact: 04/10/2017
Data Release Frequency: Varies
ABANDONED MINES: Abandoned Mines
An inventory of land and water impacted by past mining (primarily coal mining) is maintained by OSMRE to provide information needed to implement the Surface Mining Control and Reclamation Act of 1977 (SMCRA). The inventory contains information on the location, type, and extent of AML impacts, as well as, information on the cost associated with the reclamation of those problems. The inventory is based upon field surveys by State, Tribal, and OSMRE program officials. It is dynamic to the extent that it is modified as new problems are identified and existing problems are reclaimed.

Date of Government Version: 06/09/2016
Date Data Arrived at EDR: 06/13/2016
Date Made Active in Reports: 09/02/2016
Number of Days to Update: 81
Source: Department of Interior
Telephone: 202-208-2609
Last EDR Contact: 12/09/2016
Next Scheduled EDR Contact: 03/27/2017
Data Release Frequency: Quarterly
FUELS PROGRAM: EPA Fuels Program Registered Listing
This listing includes facilities that are registered under the Part 80 (Code of Federal Regulations) EPA Fuels Programs. All companies now are required to submit new and updated registrations.

Date of Government Version: 08/22/2016
Date Data Arrived at EDR: 08/23/2016
Date Made Active in Reports: 10/21/2016
Number of Days to Update: 59
Source: EPA
Telephone: 800-385-6164
Last EDR Contact: 11/22/2016
Next Scheduled EDR Contact: 03/06/2017
Data Release Frequency: Quarterly
ICE: ICE
Contains data pertaining to the Permitted Facilities with Inspections / Enforcements sites tracked in Envirostor.

Date of Government Version: 09/18/2016
Date Data Arrived at EDR: 09/20/2016
Date Made Active in Reports: 10/21/2016
Number of Days to Update: 31
Source: Environmental Protection Agency
Telephone: 202-564-2280
Last EDR Contact: 12/20/2016
Next Scheduled EDR Contact: 04/03/2017
Data Release Frequency: Quarterly

EDR HIGH RISK HISTORICAL RECORDS
EDR Exclusive Records
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GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
EDR MGP: EDR Proprietary Manufactured Gas Plants
The EDR Proprietary Manufactured Gas Plant Database includes records of coal gas plants (manufactured gas plants) compiled by EDR’s researchers. Manufactured gas sites were used in the United States from the 1800’s to 1950’s to produce a gas that could be distributed and used as fuel. These plants used whale oil, rosin, coal, or a mixture of coal, oil, and water that also produced a significant amount of waste. Many of the byproducts of the gas production, such as coal tar (oily waste containing volatile and non-volatile chemicals), sludges, oils and other compounds are potentially hazardous to human health and the environment. The byproduct from this process was frequently disposed of directly at the plant site and can remain or spread slowly, serving as a continuous source of soil and groundwater contamination.

Date of Government Version: N/A
Date Data Arrived at EDR: N/A
Date Made Active in Reports: N/A
Number of Days to Update: N/A
Source: EDR, Inc.

Telephone: N/A
Last EDR Contact: N/A
Next Scheduled EDR Contact: N/A
Data Release Frequency: No Update Planned
EDR Hist Auto: EDR Exclusive Historic Gas Stations
EDR has searched selected national collections of business directories and has collected listings of potential gas station/filling station/service station sites that were available to EDR researchers. EDR’s review was limited to those categories of sources that might, in EDR’s opinion, include gas station/filling station/service station establishments. The categories reviewed included, but were not limited to gas, gas station, gasoline station, filling station, auto, automobile repair, auto service station, service station, etc. This database falls within a category of information EDR classifies as "High Risk Historical Records", or HRHR. EDR’s HRHR effort presents unique and sometimes proprietary data about past sites and operations that typically create environmental concerns, but may not show up in current government records searches.

Date of Government Version: N/A
Date Data Arrived at EDR: N/A
Date Made Active in Reports: N/A
Number of Days to Update: N/A
Source: EDR, Inc.

Telephone: N/A
Last EDR Contact: N/A
Next Scheduled EDR Contact: N/A
Data Release Frequency: Varies
EDR Hist Cleaner: EDR Exclusive Historic Dry Cleaners
EDR has searched selected national collections of business directories and has collected listings of potential dry cleaner sites that were available to EDR researchers. EDR’s review was limited to those categories of sources that might, in EDR’s opinion, include dry cleaning establishments. The categories reviewed included, but were not limited to dry cleaners, cleaners, laundry, laundromat, cleaning/laundry, wash & dry etc. This database falls within a category of information EDR classifies as "High Risk Historical Records", or HRHR. EDR’s HRHR effort presents unique and sometimes proprietary data about past sites and operations that typically create environmental concerns, but may not show up in current government records searches.

Date of Government Version: N/A
Date Data Arrived at EDR: N/A
Date Made Active in Reports: N/A
Number of Days to Update: N/A
Source: EDR, Inc.

Telephone: N/A
Last EDR Contact: N/A
Next Scheduled EDR Contact: N/A
Data Release Frequency: Varies

EDR RECOVERED GOVERNMENT ARCHIVES
Exclusive Recovered Govt. Archives
RGA LF: Recovered Government Archive Solid Waste Facilities List The EDR Recovered Government Archive Landfill database provides a list of landfills derived from historical databases and includes many records that no longer appear in current government lists. Compiled from Records formerly available from the Department of Resources Recycling and Recovery in California.

Date of Government Version: N/A
Date Data Arrived at EDR: 07/01/2013
Date Made Active in Reports: 01/13/2014
Number of Days to Update: 196
Source: Department of Resources Recycling and Recovery Telephone: N/A
Last EDR Contact: 06/01/2012
Next Scheduled EDR Contact: N/A
Data Release Frequency: Varies
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GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
RGA LUST: Recovered Government Archive Leaking Underground Storage Tank The EDR Recovered Government Archive Leaking Underground Storage Tank database provides a list of LUST incidents derived from historical databases and includes many records that no longer appear in current government lists.

Compiled from Records formerly available from the State Water Resources Control Board in California.

Date of Government Version: N/A
Date Data Arrived at EDR: 07/01/2013
Date Made Active in Reports: 12/30/2013
Number of Days to Update: 182
Source: State Water Resources Control Board
Telephone: N/A
Last EDR Contact: 06/01/2012
Next Scheduled EDR Contact: N/A
Data Release Frequency: Varies

COUNTY RECORDS
ALAMEDA COUNTY:

Contaminated Sites
A listing of contaminated sites overseen by the Toxic Release Program (oil and groundwater contamination from chemical releases and spills) and the Leaking Underground Storage Tank Program (soil and ground water contamination from leaking petroleum USTs).

Date of Government Version: 10/12/2016
Date Data Arrived at EDR: 10/14/2016
Date Made Active in Reports: 11/18/2016
Number of Days to Update: 35
Source: Alameda County Environmental Health Services
Telephone: 510-567-6700
Last EDR Contact: 10/07/2016
Next Scheduled EDR Contact: 01/23/2017
Data Release Frequency: Semi-Annually
Underground Tanks
Underground storage tank sites located in Alameda county.

Date of Government Version: 07/07/2016
Date Data Arrived at EDR: 07/12/2016
Date Made Active in Reports: 08/08/2016
Number of Days to Update: 27
Source: Alameda County Environmental Health Services
Telephone: 510-567-6700
Last EDR Contact: 10/07/2016
Next Scheduled EDR Contact: 01/23/2017
Data Release Frequency: Semi-Annually
AMADOR COUNTY:

CUPA Facility List
Cupa Facility List
Date of Government Version: 11/10/2016
Date Data Arrived at EDR: 12/13/2016
Date Made Active in Reports: 12/22/2016
Number of Days to Update: 9
Source: Amador County Environmental Health
Telephone: 209-223-6439
Last EDR Contact: 12/02/2016
Next Scheduled EDR Contact: 03/20/2017
Data Release Frequency: Varies
BUTTE COUNTY:

CUPA Facility Listing
Cupa facility list.

Date of Government Version: 10/21/2016
Date Data Arrived at EDR: 10/26/2016
Date Made Active in Reports: 11/18/2016
Number of Days to Update: 23
Source: Public Health Department
Telephone: 530-538-7149
Last EDR Contact: 10/24/2016
Next Scheduled EDR Contact: 01/23/2017
Data Release Frequency: No Update Planned
CALVERAS COUNTY:

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GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
CUPA Facility Listing
Cupa Facility Listing
Date of Government Version: 10/25/2016
Date Data Arrived at EDR: 10/27/2016
Date Made Active in Reports: 11/18/2016
Number of Days to Update: 22
Source: Calveras County Environmental Health
Telephone: 209-754-6399
Last EDR Contact: 09/26/2016
Next Scheduled EDR Contact: 01/09/2017
Data Release Frequency: Quarterly
COLUSA COUNTY:

CUPA Facility List
Cupa facility list.

Date of Government Version: 09/02/2016
Date Data Arrived at EDR: 09/06/2016
Date Made Active in Reports: 10/14/2016
Number of Days to Update: 38
Source: Health & Human Services
Telephone: 530-458-0396
Last EDR Contact: 11/07/2016
Next Scheduled EDR Contact: 02/20/2017
Data Release Frequency: Varies
CONTRA COSTA COUNTY:

Site List
List includes sites from the underground tank, hazardous waste generator and business plan/2185 programs.

Date of Government Version: 08/22/2016
Date Data Arrived at EDR: 08/24/2016
Date Made Active in Reports: 10/10/2016
Number of Days to Update: 47
Source: Contra Costa Health Services Department
Telephone: 925-646-2286
Last EDR Contact: 10/31/2016
Next Scheduled EDR Contact: 02/13/2017
Data Release Frequency: Semi-Annually
DEL NORTE COUNTY:

CUPA Facility List
Cupa Facility list
Date of Government Version: 11/01/2016
Date Data Arrived at EDR: 11/03/2016
Date Made Active in Reports: 11/22/2016
Number of Days to Update: 19
Source: Del Norte County Environmental Health Division Telephone: 707-465-0426
Last EDR Contact: 10/31/2016
Next Scheduled EDR Contact: 02/13/2017
Data Release Frequency: Varies
EL DORADO COUNTY:

CUPA Facility List
CUPA facility list.

Date of Government Version: 05/24/2016
Date Data Arrived at EDR: 05/26/2016
Date Made Active in Reports: 08/09/2016
Number of Days to Update: 75
Source: El Dorado County Environmental Management Department Telephone: 530-621-6623
Last EDR Contact: 10/31/2016
Next Scheduled EDR Contact: 02/13/2017
Data Release Frequency: Varies
FRESNO COUNTY:

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GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
CUPA Resources List
Certified Unified Program Agency. CUPA’s are responsible for implementing a unified hazardous materials and hazardous waste management regulatory program. The agency provides oversight of businesses that deal with hazardous materials, operate underground storage tanks or aboveground storage tanks.

Date of Government Version: 10/11/2016
Date Data Arrived at EDR: 10/14/2016
Date Made Active in Reports: 11/18/2016
Number of Days to Update: 35
Source: Dept. of Community Health
Telephone: 559-445-3271
Last EDR Contact: 09/29/2016
Next Scheduled EDR Contact: 01/16/2017
Data Release Frequency: Semi-Annually
HUMBOLDT COUNTY:

CUPA Facility List
CUPA facility list.

Date of Government Version: 10/25/2016
Date Data Arrived at EDR: 10/27/2016
Date Made Active in Reports: 11/18/2016
Number of Days to Update: 22
Source: Humboldt County Environmental Health
Telephone: N/A
Last EDR Contact: 11/21/2016
Next Scheduled EDR Contact: 03/06/2017
Data Release Frequency: Varies
IMPERIAL COUNTY:

CUPA Facility List
Cupa facility list.

Date of Government Version: 10/24/2016
Date Data Arrived at EDR: 10/27/2016
Date Made Active in Reports: 11/18/2016
Number of Days to Update: 22
Source: San Diego Border Field Office
Telephone: 760-339-2777
Last EDR Contact: 10/24/2016
Next Scheduled EDR Contact: 02/06/2017
Data Release Frequency: Varies
INYO COUNTY:

CUPA Facility List
Cupa facility list.

Date of Government Version: 09/10/2013
Date Data Arrived at EDR: 09/11/2013
Date Made Active in Reports: 10/14/2013
Number of Days to Update: 33
Source: Inyo County Environmental Health Services
Telephone: 760-878-0238
Last EDR Contact: 12/02/2016
Next Scheduled EDR Contact: 03/06/2017
Data Release Frequency: Varies
KERN COUNTY:

Underground Storage Tank Sites & Tank Listing
Kern County Sites and Tanks Listing.

Date of Government Version: 08/04/2016
Date Data Arrived at EDR: 08/08/2016
Date Made Active in Reports: 10/18/2016
Number of Days to Update: 71
Source: Kern County Environment Health Services Department Telephone: 661-862-8700
Last EDR Contact: 11/07/2016
Next Scheduled EDR Contact: 02/20/2017
Data Release Frequency: Quarterly
KINGS COUNTY:

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GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
CUPA Facility List
A listing of sites included in the county’s Certified Unified Program Agency database. California’s Secretary for Environmental Protection established the unified hazardous materials and hazardous waste regulatory program as required by chapter 6.11 of the California Health and Safety Code. The Unified Program consolidates the administration, permits, inspections, and enforcement activities.

Date of Government Version: 12/14/2016
Date Data Arrived at EDR: 12/16/2016
Date Made Active in Reports: 12/22/2016
Number of Days to Update: 6
Source: Kings County Department of Public Health
Telephone: 559-584-1411
Last EDR Contact: 11/16/2016
Next Scheduled EDR Contact: 03/06/2017
Data Release Frequency: Varies
LAKE COUNTY:

CUPA Facility List
Cupa facility list
Date of Government Version: 09/08/2016
Date Data Arrived at EDR: 09/09/2016
Date Made Active in Reports: 10/14/2016
Number of Days to Update: 35
Source: Lake County Environmental Health
Telephone: 707-263-1164
Last EDR Contact: 10/17/2016
Next Scheduled EDR Contact: 01/30/2017
Data Release Frequency: Varies
LOS ANGELES COUNTY:

San Gabriel Valley Areas of Concern
San Gabriel Valley areas where VOC contamination is at or above the MCL as designated by region 9 EPA office.

Date of Government Version: 03/30/2009
Date Data Arrived at EDR: 03/31/2009
Date Made Active in Reports: 10/23/2009
Number of Days to Update: 206
Source: EPA Region 9
Telephone: 415-972-3178
Last EDR Contact: 12/15/2016
Next Scheduled EDR Contact: 04/03/2017
Data Release Frequency: No Update Planned
HMS: Street Number List
Industrial Waste and Underground Storage Tank Sites.

Date of Government Version: 07/05/2016
Date Data Arrived at EDR: 07/12/2016
Date Made Active in Reports: 08/18/2016
Number of Days to Update: 37
Source: Department of Public Works
Telephone: 626-458-3517
Last EDR Contact: 11/07/2016
Next Scheduled EDR Contact: 01/23/2017
Data Release Frequency: Semi-Annually
List of Solid Waste Facilities
Solid Waste Facilities in Los Angeles County.

Date of Government Version: 10/17/2016
Date Data Arrived at EDR: 10/18/2016
Date Made Active in Reports: 12/15/2016
Number of Days to Update: 58
Source: La County Department of Public Works
Telephone: 818-458-5185
Last EDR Contact: 10/18/2016
Next Scheduled EDR Contact: 01/30/2017
Data Release Frequency: Varies
City of Los Angeles Landfills
Landfills owned and maintained by the City of Los Angeles.

Date of Government Version: 01/01/2016
Date Data Arrived at EDR: 01/26/2016
Date Made Active in Reports: 03/22/2016
Number of Days to Update: 56
Source: Engineering & Construction Division
Telephone: 213-473-7869
Last EDR Contact: 10/17/2016
Next Scheduled EDR Contact: 01/30/2017
Data Release Frequency: Varies
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GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
Site Mitigation List
Industrial sites that have had some sort of spill or complaint.

Date of Government Version: 03/29/2016
Date Data Arrived at EDR: 04/06/2016
Date Made Active in Reports: 06/13/2016
Number of Days to Update: 68
Source: Community Health Services
Telephone: 323-890-7806
Last EDR Contact: 10/17/2016
Next Scheduled EDR Contact: 01/30/2017
Data Release Frequency: Annually
City of El Segundo Underground Storage Tank
Underground storage tank sites located in El Segundo city.

Date of Government Version: 03/30/2015
Date Data Arrived at EDR: 04/02/2015
Date Made Active in Reports: 04/13/2015
Number of Days to Update: 11
Source: City of El Segundo Fire Department
Telephone: 310-524-2236
Last EDR Contact: 10/17/2016
Next Scheduled EDR Contact: 01/30/2017
Data Release Frequency: Semi-Annually
City of Long Beach Underground Storage Tank
Underground storage tank sites located in the city of Long Beach.

Date of Government Version: 11/04/2015
Date Data Arrived at EDR: 11/13/2015
Date Made Active in Reports: 12/17/2015
Number of Days to Update: 34
Source: City of Long Beach Fire Department
Telephone: 562-570-2563
Last EDR Contact: 10/24/2016
Next Scheduled EDR Contact: 02/06/2017
Data Release Frequency: Annually
City of Torrance Underground Storage Tank
Underground storage tank sites located in the city of Torrance.

Date of Government Version: 06/23/2016
Date Data Arrived at EDR: 07/12/2016
Date Made Active in Reports: 08/09/2016
Number of Days to Update: 28
Source: City of Torrance Fire Department
Telephone: 310-618-2973
Last EDR Contact: 10/07/2016
Next Scheduled EDR Contact: 01/23/2017
Data Release Frequency: Semi-Annually
MADERA COUNTY:

CUPA Facility List
A listing of sites included in the county’s Certified Unified Program Agency database. California’s Secretary for Environmental Protection established the unified hazardous materials and hazardous waste regulatory program as required by chapter 6.11 of the California Health and Safety Code. The Unified Program consolidates the administration, permits, inspections, and enforcement activities.

Date of Government Version: 08/18/2016
Date Data Arrived at EDR: 08/22/2016
Date Made Active in Reports: 09/23/2016
Number of Days to Update: 32
Source: Madera County Environmental Health
Telephone: 559-675-7823
Last EDR Contact: 11/16/2016
Next Scheduled EDR Contact: 03/06/2017
Data Release Frequency: Varies
MARIN COUNTY:

Underground Storage Tank Sites
Currently permitted USTs in Marin County.

Date of Government Version: 04/07/2016
Date Data Arrived at EDR: 04/26/2016
Date Made Active in Reports: 06/01/2016
Number of Days to Update: 36
Source: Public Works Department Waste Management
Telephone: 415-499-6647
Last EDR Contact: 09/29/2016
Next Scheduled EDR Contact: 01/16/2017
Data Release Frequency: Semi-Annually
MERCED COUNTY:

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GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
CUPA Facility List
CUPA facility list.

Date of Government Version: 08/17/2016
Date Data Arrived at EDR: 08/22/2016
Date Made Active in Reports: 09/23/2016
Number of Days to Update: 32
Source: Merced County Environmental Health
Telephone: 209-381-1094
Last EDR Contact: 12/02/2016
Next Scheduled EDR Contact: 03/06/2017
Data Release Frequency: Varies
MONO COUNTY:

CUPA Facility List
CUPA Facility List
Date of Government Version: 11/29/2016
Date Data Arrived at EDR: 12/05/2016
Date Made Active in Reports: 12/22/2016
Number of Days to Update: 17
Source: Mono County Health Department
Telephone: 760-932-5580
Last EDR Contact: 11/28/2016
Next Scheduled EDR Contact: 03/13/2017
Data Release Frequency: Varies
MONTEREY COUNTY:

CUPA Facility Listing
CUPA Program listing from the Environmental Health Division.

Date of Government Version: 06/24/2016
Date Data Arrived at EDR: 06/27/2016
Date Made Active in Reports: 08/09/2016
Number of Days to Update: 43
Source: Monterey County Health Department
Telephone: 831-796-1297
Last EDR Contact: 11/21/2016
Next Scheduled EDR Contact: 03/06/2017
Data Release Frequency: Varies
NAPA COUNTY:

Sites With Reported Contamination
A listing of leaking underground storage tank sites located in Napa county.

Date of Government Version: 12/05/2011
Date Data Arrived at EDR: 12/06/2011
Date Made Active in Reports: 02/07/2012
Number of Days to Update: 63
Source: Napa County Department of Environmental Management Telephone: 707-253-4269
Last EDR Contact: 11/28/2016
Next Scheduled EDR Contact: 03/13/2017
Data Release Frequency: No Update Planned
Closed and Operating Underground Storage Tank Sites
Underground storage tank sites located in Napa county.

Date of Government Version: 01/15/2008
Date Data Arrived at EDR: 01/16/2008
Date Made Active in Reports: 02/08/2008
Number of Days to Update: 23
Source: Napa County Department of Environmental Management Telephone: 707-253-4269
Last EDR Contact: 12/22/2016
Next Scheduled EDR Contact: 03/13/2017
Data Release Frequency: No Update Planned
NEVADA COUNTY:

CUPA Facility List
CUPA facility list.

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GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
Date of Government Version: 11/07/2016
Date Data Arrived at EDR: 11/08/2016
Date Made Active in Reports: 12/22/2016
Number of Days to Update: 44
Source: Community Development Agency
Telephone: 530-265-1467
Last EDR Contact: 10/31/2016
Next Scheduled EDR Contact: 02/13/2017
Data Release Frequency: Varies
ORANGE COUNTY:

List of Industrial Site Cleanups
Petroleum and non-petroleum spills.

Date of Government Version: 08/01/2016
Date Data Arrived at EDR: 08/15/2016
Date Made Active in Reports: 10/05/2016
Number of Days to Update: 51
Source: Health Care Agency
Telephone: 714-834-3446
Last EDR Contact: 11/07/2016
Next Scheduled EDR Contact: 02/20/2017
Data Release Frequency: Annually
List of Underground Storage Tank Cleanups
Orange County Underground Storage Tank Cleanups (LUST).

Date of Government Version: 08/03/2016
Date Data Arrived at EDR: 08/15/2016
Date Made Active in Reports: 10/07/2016
Number of Days to Update: 53
Source: Health Care Agency
Telephone: 714-834-3446
Last EDR Contact: 11/07/2016
Next Scheduled EDR Contact: 02/20/2017
Data Release Frequency: Quarterly
List of Underground Storage Tank Facilities
Orange County Underground Storage Tank Facilities (UST).

Date of Government Version: 08/01/2016
Date Data Arrived at EDR: 08/09/2016
Date Made Active in Reports: 10/11/2016
Number of Days to Update: 63
Source: Health Care Agency
Telephone: 714-834-3446
Last EDR Contact: 11/08/2016
Next Scheduled EDR Contact: 02/20/2017
Data Release Frequency: Quarterly
PLACER COUNTY:

Master List of Facilities
List includes aboveground tanks, underground tanks and cleanup sites.

Date of Government Version: 09/02/2016
Date Data Arrived at EDR: 09/06/2016
Date Made Active in Reports: 10/14/2016
Number of Days to Update: 38
Source: Placer County Health and Human Services
Telephone: 530-745-2363
Last EDR Contact: 12/02/2016
Next Scheduled EDR Contact: 03/20/2017
Data Release Frequency: Semi-Annually
RIVERSIDE COUNTY:

Listing of Underground Tank Cleanup Sites
Riverside County Underground Storage Tank Cleanup Sites (LUST).

Date of Government Version: 10/20/2016
Date Data Arrived at EDR: 10/25/2016
Date Made Active in Reports: 12/15/2016
Number of Days to Update: 51
Source: Department of Environmental Health
Telephone: 951-358-5055
Last EDR Contact: 12/19/2016
Next Scheduled EDR Contact: 04/03/2017
Data Release Frequency: Quarterly
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GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
Underground Storage Tank Tank List
Underground storage tank sites located in Riverside county.

Date of Government Version: 07/13/2016
Date Data Arrived at EDR: 07/18/2016
Date Made Active in Reports: 08/08/2016
Number of Days to Update: 21
Source: Department of Environmental Health
Telephone: 951-358-5055
Last EDR Contact: 12/19/2016
Next Scheduled EDR Contact: 04/03/2017
Data Release Frequency: Quarterly
SACRAMENTO COUNTY:

Toxic Site Clean-Up List
List of sites where unauthorized releases of potentially hazardous materials have occurred.

Date of Government Version: 08/22/2016
Date Data Arrived at EDR: 10/04/2016
Date Made Active in Reports: 11/18/2016
Number of Days to Update: 45
Source: Sacramento County Environmental Management
Telephone: 916-875-8406
Last EDR Contact: 10/04/2016
Next Scheduled EDR Contact: 01/16/2017
Data Release Frequency: Quarterly
Master Hazardous Materials Facility List
Any business that has hazardous materials on site - hazardous material storage sites, underground storage tanks, waste generators.

Date of Government Version: 08/22/2016
Date Data Arrived at EDR: 10/04/2016
Date Made Active in Reports: 12/16/2016
Number of Days to Update: 73
Source: Sacramento County Environmental Management
Telephone: 916-875-8406
Last EDR Contact: 10/04/2016
Next Scheduled EDR Contact: 01/16/2017
Data Release Frequency: Quarterly
SAN BERNARDINO COUNTY:

Hazardous Material Permits
This listing includes underground storage tanks, medical waste handlers/generators, hazardous materials handlers, hazardous waste generators, and waste oil generators/handlers.

Date of Government Version: 09/06/2016
Date Data Arrived at EDR: 09/07/2016
Date Made Active in Reports: 10/19/2016
Number of Days to Update: 42
Source: San Bernardino County Fire Department Hazardous Materials Division Telephone: 909-387-3041
Last EDR Contact: 11/07/2016
Next Scheduled EDR Contact: 02/20/2017
Data Release Frequency: Quarterly
SAN DIEGO COUNTY:

Hazardous Materials Management Division Database
The database includes: HE58 - This report contains the business name, site address, business phone number, establishment ’H’ permit number, type of permit, and the business status. HE17 - In addition to providing the same information provided in the HE58 listing, HE17 provides inspection dates, violations received by the establishment, hazardous waste generated, the quantity, method of storage, treatment/disposal of waste and the hauler, and information on underground storage tanks. Unauthorized Release List - Includes a summary of environmental contamination cases in San Diego County (underground tank cases, non-tank cases, groundwater contamination, and soil contamination are included.)
Date of Government Version: 09/23/2013
Date Data Arrived at EDR: 09/24/2013
Date Made Active in Reports: 10/17/2013
Number of Days to Update: 23
Source: Hazardous Materials Management Division
Telephone: 619-338-2268
Last EDR Contact: 12/06/2016
Next Scheduled EDR Contact: 03/20/2017
Data Release Frequency: Quarterly
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GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
Solid Waste Facilities
San Diego County Solid Waste Facilities.

Date of Government Version: 10/31/2015
Date Data Arrived at EDR: 11/07/2015
Date Made Active in Reports: 01/04/2016
Number of Days to Update: 58
Source: Department of Health Services
Telephone: 619-338-2209
Last EDR Contact: 12/21/2016
Next Scheduled EDR Contact: 02/06/2017
Data Release Frequency: Varies
Environmental Case Listing
The listing contains all underground tank release cases and projects pertaining to properties contaminated with hazardous substances that are actively under review by the Site Assessment and Mitigation Program.

Date of Government Version: 03/23/2010
Date Data Arrived at EDR: 06/15/2010
Date Made Active in Reports: 07/09/2010
Number of Days to Update: 24
Source: San Diego County Department of Environmental Health Telephone: 619-338-2371
Last EDR Contact: 12/02/2016
Next Scheduled EDR Contact: 03/20/2017
Data Release Frequency: No Update Planned
SAN FRANCISCO COUNTY:

Local Oversite Facilities
A listing of leaking underground storage tank sites located in San Francisco county.

Date of Government Version: 09/19/2008
Date Data Arrived at EDR: 09/19/2008
Date Made Active in Reports: 09/29/2008
Number of Days to Update: 10
Source: Department Of Public Health San Francisco County Telephone: 415-252-3920
Last EDR Contact: 11/07/2016
Next Scheduled EDR Contact: 02/20/2017
Data Release Frequency: Quarterly
Underground Storage Tank Information
Underground storage tank sites located in San Francisco county.

Date of Government Version: 11/29/2010
Date Data Arrived at EDR: 03/10/2011
Date Made Active in Reports: 03/15/2011
Number of Days to Update: 5
Source: Department of Public Health
Telephone: 415-252-3920
Last EDR Contact: 11/16/2016
Next Scheduled EDR Contact: 02/20/2017
Data Release Frequency: Quarterly
SAN JOAQUIN COUNTY:

San Joaquin Co. UST
A listing of underground storage tank locations in San Joaquin county.

Date of Government Version: 09/21/2016
Date Data Arrived at EDR: 09/22/2016
Date Made Active in Reports: 10/18/2016
Number of Days to Update: 26
Source: Environmental Health Department
Telephone: N/A
Last EDR Contact: 12/15/2016
Next Scheduled EDR Contact: 04/03/2017
Data Release Frequency: Semi-Annually
SAN LUIS OBISPO COUNTY:

CUPA Facility List
Cupa Facility List.

Date of Government Version: 08/18/2016
Date Data Arrived at EDR: 08/22/2016
Date Made Active in Reports: 10/04/2016
Number of Days to Update: 43
Source: San Luis Obispo County Public Health Department Telephone: 805-781-5596
Last EDR Contact: 11/16/2016
Next Scheduled EDR Contact: 03/06/2017
Data Release Frequency: Varies
SAN MATEO COUNTY:

TC04816690.2r Page GR-39

GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
Business Inventory
List includes Hazardous Materials Business Plan, hazardous waste generators, and underground storage tanks.

Date of Government Version: 06/02/2016
Date Data Arrived at EDR: 06/07/2016
Date Made Active in Reports: 06/22/2016
Number of Days to Update: 15
Source: San Mateo County Environmental Health Services Division Telephone: 650-363-1921
Last EDR Contact: 12/09/2016
Next Scheduled EDR Contact: 03/20/2017
Data Release Frequency: Annually
Fuel Leak List
A listing of leaking underground storage tank sites located in San Mateo county.

Date of Government Version: 06/09/2016
Date Data Arrived at EDR: 06/13/2016
Date Made Active in Reports: 08/09/2016
Number of Days to Update: 57
Source: San Mateo County Environmental Health Services Division Telephone: 650-363-1921
Last EDR Contact: 12/09/2016
Next Scheduled EDR Contact: 03/27/2017
Data Release Frequency: Semi-Annually
SANTA BARBARA COUNTY:

CUPA Facility Listing
CUPA Program Listing from the Environmental Health Services division.

Date of Government Version: 09/08/2011
Date Data Arrived at EDR: 09/09/2011
Date Made Active in Reports: 10/07/2011
Number of Days to Update: 28
Source: Santa Barbara County Public Health Department
Telephone: 805-686-8167
Last EDR Contact: 11/16/2016
Next Scheduled EDR Contact: 03/06/2017
Data Release Frequency: Varies
SANTA CLARA COUNTY:

Cupa Facility List
Cupa facility list
Date of Government Version: 08/17/2016
Date Data Arrived at EDR: 08/22/2016
Date Made Active in Reports: 10/04/2016
Number of Days to Update: 43
Source: Department of Environmental Health
Telephone: 408-918-1973
Last EDR Contact: 11/16/2016
Next Scheduled EDR Contact: 03/06/2017
Data Release Frequency: Varies
HIST LUST - Fuel Leak Site Activity Report
A listing of open and closed leaking underground storage tanks. This listing is no longer updated by the county.

Leaking underground storage tanks are now handled by the Department of Environmental Health.

Date of Government Version: 03/29/2005
Date Data Arrived at EDR: 03/30/2005
Date Made Active in Reports: 04/21/2005
Number of Days to Update: 22
Source: Santa Clara Valley Water District
Telephone: 408-265-2600
Last EDR Contact: 03/23/2009
Next Scheduled EDR Contact: 06/22/2009
Data Release Frequency: No Update Planned
LOP Listing
A listing of leaking underground storage tanks located in Santa Clara county.

Date of Government Version: 03/03/2014
Date Data Arrived at EDR: 03/05/2014
Date Made Active in Reports: 03/18/2014
Number of Days to Update: 13
Source: Department of Environmental Health
Telephone: 408-918-3417
Last EDR Contact: 11/28/2016
Next Scheduled EDR Contact: 03/13/2017
Data Release Frequency: Annually
TC04816690.2r Page GR-40

GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
Hazardous Material Facilities
Hazardous material facilities, including underground storage tank sites.

Date of Government Version: 08/03/2016
Date Data Arrived at EDR: 08/08/2016
Date Made Active in Reports: 10/07/2016
Number of Days to Update: 60
Source: City of San Jose Fire Department
Telephone: 408-535-7694
Last EDR Contact: 11/07/2016
Next Scheduled EDR Contact: 02/20/2017
Data Release Frequency: Annually
SANTA CRUZ COUNTY:

CUPA Facility List
CUPA facility listing.

Date of Government Version: 08/17/2016
Date Data Arrived at EDR: 08/22/2016
Date Made Active in Reports: 10/04/2016
Number of Days to Update: 43
Source: Santa Cruz County Environmental Health
Telephone: 831-464-2761
Last EDR Contact: 11/16/2016
Next Scheduled EDR Contact: 03/06/2017
Data Release Frequency: Varies
SHASTA COUNTY:

CUPA Facility List
Cupa Facility List.

Date of Government Version: 09/12/2016
Date Data Arrived at EDR: 09/15/2016
Date Made Active in Reports: 10/14/2016
Number of Days to Update: 29
Source: Shasta County Department of Resource Management Telephone: 530-225-5789
Last EDR Contact: 11/21/2016
Next Scheduled EDR Contact: 03/06/2017
Data Release Frequency: Varies
SOLANO COUNTY:

Leaking Underground Storage Tanks
A listing of leaking underground storage tank sites located in Solano county.

Date of Government Version: 11/29/2016
Date Data Arrived at EDR: 12/21/2016
Date Made Active in Reports: 12/22/2016
Number of Days to Update: 1
Source: Solano County Department of Environmental Management Telephone: 707-784-6770
Last EDR Contact: 12/09/2016
Next Scheduled EDR Contact: 03/27/2017
Data Release Frequency: Quarterly
Underground Storage Tanks
Underground storage tank sites located in Solano county.

Date of Government Version: 09/26/2016
Date Data Arrived at EDR: 09/29/2016
Date Made Active in Reports: 10/18/2016
Number of Days to Update: 19
Source: Solano County Department of Environmental Management Telephone: 707-784-6770
Last EDR Contact: 12/09/2016
Next Scheduled EDR Contact: 03/27/2017
Data Release Frequency: Quarterly
SONOMA COUNTY:

Cupa Facility List
Cupa Facility list
TC04816690.2r Page GR-41

GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
Date of Government Version: 09/27/2016
Date Data Arrived at EDR: 09/28/2016
Date Made Active in Reports: 11/22/2016
Number of Days to Update: 55
Source: County of Sonoma Fire & Emergency Services Department Telephone: 707-565-1174
Last EDR Contact: 12/22/2016
Next Scheduled EDR Contact: 04/10/2017
Data Release Frequency: Varies
Leaking Underground Storage Tank Sites
A listing of leaking underground storage tank sites located in Sonoma county.

Date of Government Version: 10/04/2016
Date Data Arrived at EDR: 10/06/2016
Date Made Active in Reports: 12/16/2016
Number of Days to Update: 71
Source: Department of Health Services
Telephone: 707-565-6565
Last EDR Contact: 12/22/2016
Next Scheduled EDR Contact: 04/10/2017
Data Release Frequency: Quarterly
SUTTER COUNTY:

Underground Storage Tanks
Underground storage tank sites located in Sutter county.

Date of Government Version: 08/05/2016
Date Data Arrived at EDR: 09/06/2016
Date Made Active in Reports: 12/02/2016
Number of Days to Update: 87
Source: Sutter County Department of Agriculture
Telephone: 530-822-7500
Last EDR Contact: 12/02/2016
Next Scheduled EDR Contact: 03/20/2017
Data Release Frequency: Semi-Annually
TUOLUMNE COUNTY:

CUPA Facility List
Cupa facility list
Date of Government Version: 08/12/2016
Date Data Arrived at EDR: 08/16/2016
Date Made Active in Reports: 10/04/2016
Number of Days to Update: 49
Source: Divison of Environmental Health
Telephone: 209-533-5633
Last EDR Contact: 10/24/2016
Next Scheduled EDR Contact: 02/06/2017
Data Release Frequency: Varies
VENTURA COUNTY:

Business Plan, Hazardous Waste Producers, and Operating Underground Tanks The BWT list indicates by site address whether the Environmental Health Division has Business Plan (B), Waste Producer (W), and/or Underground Tank (T) information.

Date of Government Version: 06/28/2016
Date Data Arrived at EDR: 08/01/2016
Date Made Active in Reports: 09/23/2016
Number of Days to Update: 53
Source: Ventura County Environmental Health Division
Telephone: 805-654-2813
Last EDR Contact: 10/24/2016
Next Scheduled EDR Contact: 02/06/2017
Data Release Frequency: Quarterly
Inventory of Illegal Abandoned and Inactive Sites
Ventura County Inventory of Closed, Illegal Abandoned, and Inactive Sites.

Date of Government Version: 12/01/2011
Date Data Arrived at EDR: 12/01/2011
Date Made Active in Reports: 01/19/2012
Number of Days to Update: 49
Source: Environmental Health Division
Telephone: 805-654-2813
Last EDR Contact: 09/29/2016
Next Scheduled EDR Contact: 01/16/2017
Data Release Frequency: Annually
TC04816690.2r Page GR-42

GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
Listing of Underground Tank Cleanup Sites
Ventura County Underground Storage Tank Cleanup Sites (LUST).

Date of Government Version: 05/29/2008
Date Data Arrived at EDR: 06/24/2008
Date Made Active in Reports: 07/31/2008
Number of Days to Update: 37
Source: Environmental Health Division
Telephone: 805-654-2813
Last EDR Contact: 11/14/2016
Next Scheduled EDR Contact: 02/27/2017
Data Release Frequency: Quarterly
Medical Waste Program List
To protect public health and safety and the environment from potential exposure to disease causing agents, the Environmental Health Division Medical Waste Program regulates the generation, handling, storage, treatment and disposal of medical waste throughout the County.

Date of Government Version: 06/28/2016
Date Data Arrived at EDR: 08/01/2016
Date Made Active in Reports: 10/07/2016
Number of Days to Update: 67
Source: Ventura County Resource Management Agency
Telephone: 805-654-2813
Last EDR Contact: 10/24/2016
Next Scheduled EDR Contact: 02/06/2017
Data Release Frequency: Quarterly
Underground Tank Closed Sites List
Ventura County Operating Underground Storage Tank Sites (UST)/Underground Tank Closed Sites List.

Date of Government Version: 08/29/2016
Date Data Arrived at EDR: 09/14/2016
Date Made Active in Reports: 10/11/2016
Number of Days to Update: 27
Source: Environmental Health Division
Telephone: 805-654-2813
Last EDR Contact: 12/14/2016
Next Scheduled EDR Contact: 03/27/2017
Data Release Frequency: Quarterly
YOLO COUNTY:

Underground Storage Tank Comprehensive Facility Report
Underground storage tank sites located in Yolo county.

Date of Government Version: 06/30/2016
Date Data Arrived at EDR: 08/24/2016
Date Made Active in Reports: 10/11/2016
Number of Days to Update: 48
Source: Yolo County Department of Health
Telephone: 530-666-8646
Last EDR Contact: 11/14/2016
Next Scheduled EDR Contact: 01/16/2017
Data Release Frequency: Annually
YUBA COUNTY:

CUPA Facility List
CUPA facility listing for Yuba County.

Date of Government Version: 10/28/2016
Date Data Arrived at EDR: 11/03/2016
Date Made Active in Reports: 12/15/2016
Number of Days to Update: 42
Source: Yuba County Environmental Health Department
Telephone: 530-749-7523
Last EDR Contact: 10/31/2016
Next Scheduled EDR Contact: 02/13/2017
Data Release Frequency: Varies

OTHER DATABASE(S)
Depending on the geographic area covered by this report, the data provided in these specialty databases may or may not be complete. For example, the existence of wetlands information data in a specific report does not mean that all wetlands in the area covered by the report are included. Moreover, the absence of any reported wetlands information does not necessarily mean that wetlands do not exist in the area covered by the report.

TC04816690.2r Page GR-43

GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
CT MANIFEST: Hazardous Waste Manifest Data
Facility and manifest data. Manifest is a document that lists and tracks hazardous waste from the generator through transporters to a tsd facility.

Date of Government Version: 07/30/2013
Date Data Arrived at EDR: 08/19/2013
Date Made Active in Reports: 10/03/2013
Number of Days to Update: 45
Source: Department of Energy & Environmental Protection Telephone: 860-424-3375
Last EDR Contact: 11/11/2016
Next Scheduled EDR Contact: 02/27/2017
Data Release Frequency: No Update Planned
NJ MANIFEST: Manifest Information
Hazardous waste manifest information.

Date of Government Version: 12/31/2015
Date Data Arrived at EDR: 08/31/2016
Date Made Active in Reports: 12/12/2016
Number of Days to Update: 103
Source: Department of Environmental Protection
Telephone: N/A
Last EDR Contact: 10/12/2016
Next Scheduled EDR Contact: 01/23/2017
Data Release Frequency: Annually
NY MANIFEST: Facility and Manifest Data
Manifest is a document that lists and tracks hazardous waste from the generator through transporters to a TSD facility.

Date of Government Version: 08/01/2016
Date Data Arrived at EDR: 08/03/2016
Date Made Active in Reports: 09/09/2016
Number of Days to Update: 37
Source: Department of Environmental Conservation
Telephone: 518-402-8651
Last EDR Contact: 11/02/2016
Next Scheduled EDR Contact: 02/13/2017
Data Release Frequency: Annually
PA MANIFEST: Manifest Information
Hazardous waste manifest information.

Date of Government Version: 12/31/2015
Date Data Arrived at EDR: 07/22/2016
Date Made Active in Reports: 11/22/2016
Number of Days to Update: 123
Source: Department of Environmental Protection
Telephone: 717-783-8990
Last EDR Contact: 10/14/2016
Next Scheduled EDR Contact: 01/30/2017
Data Release Frequency: Annually
RI MANIFEST: Manifest information
Hazardous waste manifest information
Date of Government Version: 12/31/2013
Date Data Arrived at EDR: 06/19/2015
Date Made Active in Reports: 07/15/2015
Number of Days to Update: 26
Source: Department of Environmental Management
Telephone: 401-222-2797
Last EDR Contact: 11/21/2016
Next Scheduled EDR Contact: 03/06/2017
Data Release Frequency: Annually
WI MANIFEST: Manifest Information
Hazardous waste manifest information.

Date of Government Version: 12/31/2015
Date Data Arrived at EDR: 04/14/2016
Date Made Active in Reports: 06/03/2016
Number of Days to Update: 50
Source: Department of Natural Resources
Telephone: N/A
Last EDR Contact: 12/12/2016
Next Scheduled EDR Contact: 03/27/2017
Data Release Frequency: Annually
Oil/Gas Pipelines
Source: PennWell Corporation
Petroleum Bundle (Crude Oil, Refined Products, Petrochemicals, Gas Liquids (LPG/NGL), and Specialty Gases (Miscellaneous)) N = Natural Gas Bundle (Natural Gas, Gas Liquids (LPG/NGL), and Specialty Gases (Miscellaneous)). This map includes information copyrighted by PennWell Corporation. This information is provided on a best effort basis and PennWell Corporation does not guarantee its accuracy nor warrant its fitness for any particular purpose. Such information has been reprinted with the permission of PennWell.

Electric Power Transmission Line Data
Source: PennWell Corporation
This map includes information copyrighted by PennWell Corporation. This information is provided on a best effort basis and PennWell Corporation does not guarantee its accuracy nor warrant its fitness for any particular purpose. Such information has been reprinted with the permission of PennWell.

TC04816690.2r Page GR-44

GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
Sensitive Receptors: There are individuals deemed sensitive receptors due to their fragile immune systems and special sensitivit y to environmental discharges. These sensitive receptors typically include the elderly, the sick, and children. While the location of all sensitive receptors cannot be determined, EDR indicates those buildings and facilities - schools, daycares, hospitals, medical centers, and nursing homes - where individuals who are sensitive receptors are likely to be located.

AHA Hospitals:

Source: American Hospital Association, Inc.

Telephone: 312-280-5991
The database includes a listing of hospitals based on the American Hospital Association’s annual survey of hospitals.

Medical Centers: Provider of Services Listing
Source: Centers for Medicare & Medicaid Services
Telephone: 410-786-3000
A listing of hospitals with Medicare provider number, produced by Centers of Medicare & Medicaid Services, a federal agency within the U.S. Department of Health and Human Services.

Nursing Homes
Source: National Institutes of Health
Telephone: 301-594-6248
Information on Medicare and Medicaid certified nursing homes in the United States.

Public Schools
Source: National Center for Education Statistics
Telephone: 202-502-7300
The National Center for Education Statistics’ primary database on elementary and secondary public education in the United States. It is a comprehensive, annual, national statistical database of all public elementary and secondary schools and school districts, which contains data that are comparable across all states.

Private Schools
Source: National Center for Education Statistics
Telephone: 202-502-7300
The National Center for Education Statistics’ primary database on private school locations in the United States.

Daycare Centers: Licensed Facilities
Source: Department of Social Services
Telephone: 916-657-4041
Flood Zone Data: This data was obtained from the Federal Emergency Management Agency (FEMA). It depicts 100-year and 500-year flood zones as defined by FEMA. It includes the National Flood Hazard Layer (NFHL) which incorporates Flood Insurance Rate Map (FIRM) data and Q3 data from FEMA in areas not covered by NFHL.

Source: FEMA
Telephone: 877-336-2627
Date of Government Version: 2003, 2015
NWI: National Wetlands Inventory. This data, available in select counties across the country, was obtained by EDR in 2002, 2005 and 2010 from the U.S. Fish and Wildlife Service.

State Wetlands Data: Wetland Inventory
Source: Department of Fish & Game
Telephone: 916-445-0411
Current USGS 7.5 Minute Topographic Map
Source: U.S. Geological Survey
TC04816690.2r Page GR-45

GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING

STREET AND ADDRESS INFORMATION
© 2015 TomTom North America, Inc. All rights reserved. This material is proprietary and the subject of copyright protection and other intellectual property rights owned by or licensed to Tele Atlas North America, Inc. The use of this material is subject to the terms of a license agreement. You will be held liable for any unauthorized copying or disclosure of this material.

TC04816690.2r Page GR-46

GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
TC04816690.2r Page A-1
geologic strata.
of the soil, and nearby wells. Groundwater flow velocity is generally impacted by the nature of the Groundwater flow direction may be impacted by surface topography, hydrology, hydrogeology, characteristics

2. Groundwater flow velocity.

1. Groundwater flow direction, and
Assessment of the impact of contaminant migration generally has two principal investigative components:
forming an opinion about the impact of potential contaminant migration.

EDR’s GeoCheck Physical Setting Source Addendum is provided to assist the environmental professional in 2012Version Date:
5633765 SOUTH GATE, CAWest Map:
2012Version Date:
5633777 WHITTIER, CATarget Property Map:

USGS TOPOGRAPHIC MAP
110 ft. above sea levelElevation:
3754694.2UTM Y (Meters):
396552.7UTM X (Meters):

Zone 11Universal Tranverse Mercator:
118.119214 - 118˚ 7’ 9.17’’Longitude (West):

33.929369 - 33˚ 55’ 45.73’’Latitude (North):

TARGET PROPERTY COORDINATES
DOWNEY, CA 90241
9301, 9333 AND 9399 STEWART & GRAY ROAD
9300, 9350 AND 9400 HALL ROAD

TARGET PROPERTY ADDRESS
®GEOCHECK - PHYSICAL SETTING SOURCE ADDENDUM®
TC04816690.2r Page A-2
should be field verified.
on a relative (not an absolute) basis. Relative elevation information between sites of close proximity Source: Topography has been determined from the USGS 7.5’ Digital Elevation Model and should be evaluated SURROUNDING TOPOGRAPHY: ELEVATION PROFILES
Elevation (ft)Elevation (ft)
TP
TP
0 1/2 1 Miles
✩Target Property Elevation: 110 ft.

North South
West East
94 96
97 98
99 101
102
105
107
110
112
113
115
117
118
119
120
121
124107
107
107
107
107
107
107
108
109
110
109
109
110
112
112
112
114
117
117
General SouthGeneral Topographic Gradient:

TARGET PROPERTY TOPOGRAPHY
should contamination exist on the target property, what downgradient sites might be impacted. assist the environmental professional in forming an opinion about the impact of nearby contaminated properties or, Surface topography may be indicative of the direction of surficial groundwater flow. This information can be used to

TOPOGRAPHIC INFORMATION
collected on nearby properties, and regional groundwater flow information (from deep aquifers). sources of information, such as surface topographic information, hydrologic information, hydrogeologic data using site-specific well data. If such data is not reasonably ascertainable, it may be necessary to rely on other Groundwater flow direction for a particular site is best determined by a qualified environmental professional

GROUNDWATER FLOW DIRECTION INFORMATION
®GEOCHECK - PHYSICAL SETTING SOURCE SUMMARY®
TC04816690.2r Page A-3
Not Reported

GENERAL DIRECTIONLOCATION

GROUNDWATER FLOWFROM TPMAP ID
hydrogeologically, and the depth to water table.
authorities at select sites and has extracted the date of the report, groundwater flow direction as determined flow at specific points. EDR has reviewed reports submitted by environmental professionals to regulatory EDR has developed the AQUIFLOW Information System to provide data on the general direction of groundwater

AQUIFLOW
®
Search Radius: 1.000 Mile.

Not found Status:

1.25 miles Search Radius:

Site-Specific Hydrogeological Data*:
* ©1996 Site−specific hydrogeological data gathered by CERCLIS Alerts, Inc., Bainbridge Island, WA. All rights reserved. All of the information and opinions presented are those of the cited EPA report(s), which were completed under a Comprehensive Environmental Response Compensation and Liability Information System (CERCLIS) investigation. contamination exist on the target property, what downgradient sites might be impacted. environmental professional in forming an opinion about the impact of nearby contaminated properties or, should of groundwater flow direction in the immediate area. Such hydrogeologic information can be used to assist the Hydrogeologic information obtained by installation of wells on a specific site can often be an indicator

HYDROGEOLOGIC INFORMATION
YES - refer to the Overview Map and Detail MapWHITTIER

NATIONAL WETLAND INVENTORY
NWI Electronic
Data CoverageNWI Quad at Target Property
FEMA FIRM Flood data06037C1820F
FEMA FIRM Flood data06037C1830F
FEMA FIRM Flood data06037C1810F
Additional Panels in search area: FEMA Source Type
FEMA FIRM Flood data06037C1840F
Flood Plain Panel at Target Property FEMA Source Type

FEMA FLOOD ZONE
and bodies of water).

Refer to the Physical Setting Source Map following this summary for hydrologic information (major waterways contamination exist on the target property, what downgradient sites might be impacted. the environmental professional in forming an opinion about the impact of nearby contaminated properties or, should Surface water can act as a hydrologic barrier to groundwater flow. Such hydrologic information can be used to assist

HYDROLOGIC INFORMATION
®GEOCHECK - PHYSICAL SETTING SOURCE SUMMARY®
TC04816690.2r Page A-4

> 10 inchesDepth to Bedrock Max:
> 10 inchesDepth to Bedrock Min:

Not ReportedCorrosion Potential - Uncoated Steel:

Hydric Status: Soil does not meet the requirements for a hydric soil.

Not reportedSoil Drainage Class:

Not reportedHydrologic Group:
variableSoil Surface Texture:

URBAN LAND Soil Component Name:

The following information is based on Soil Conservation Service STATSGO data. in a landscape. Soil maps for STATSGO are compiled by generalizing more detailed (SSURGO) soil survey maps. for privately owned lands in the United States. A soil map in a soil survey is a representation of soil patterns Survey (NCSS) and is responsible for collecting, storing, maintaining and distributing soil survey information The U.S. Department of Agriculture’s (USDA) Soil Conservation Service (SCS) leads the National Cooperative Soil

DOMINANT SOIL COMPOSITION IN GENERAL AREA OF TARGET PROPERTY Map, USGS Digital Data Series DDS - 11 (1994).
of the Conterminous U.S. at 1:2,500,000 Scale - a digital representation of the 1974 P.B. King and H.M. Beikman Geologic Age and Rock Stratigraphic Unit Source: P.G. Schruben, R.E. Arndt and W.J. Bawiec, Geology

ROCK STRATIGRAPHIC UNIT GEOLOGIC AGE IDENTIFICATION
Stratifed SequenceCategory:CenozoicEra:

QuaternarySystem:

QuaternarySeries:

QCode: (decoded above as Era, System & Series)
at which contaminant migration may be occurring.

Geologic information can be used by the environmental professional in forming an opinion about the relative speed

GEOLOGIC INFORMATION IN GENERAL AREA OF TARGET PROPERTY move more quickly through sandy-gravelly types of soils than silty-clayey types of soils. characteristics data collected on nearby properties and regional soil information. In general, contaminant plumes to rely on other sources of information, including geologic age identification, rock stratigraphic unit and soil using site specific geologic and soil strata data. If such data are not reasonably ascertainable, it may be necessary Groundwater flow velocity information for a particular site is best determined by a qualified environmental professional

GROUNDWATER FLOW VELOCITY INFORMATION
®GEOCHECK - PHYSICAL SETTING SOURCE SUMMARY®
TC04816690.2r Page A-5
very fine sandy loam
weathered bedrock
sand
coarse sand
gravelly - sandy loam
silty clay loam
clay loam
stratifiedDeeper Soil Types:
silty clay
sand
gravelly - loam
fine sandy loamShallow Soil Types:
sand
gravelly - sand
coarse sand
gravelly - sandy loam
clay loam
fine sand
sandy loam
loamy sand
silt loam
clay
loamSurficial Soil Types:
sand
gravelly - sand
coarse sand
gravelly - sandy loam
clay loam
fine sand
sandy loam
loamy sand
silt loam
clay
loamSoil Surface Textures:
appear within the general area of target property.

Based on Soil Conservation Service STATSGO data, the following additional subordinant soil types may

OTHER SOIL TYPES IN AREA
Min: 0.00
Max: 0.00
Min: 0.00
Max: 0.00Not reportedNot reportedvariable 6 inches 0 inches 1 Soil Layer Information
Boundary Classification
Permeability
Rate (in/hr)
Layer Upper Lower Soil Texture Class AASHTO Group Unified Soil Soil Reaction (pH)
®GEOCHECK - PHYSICAL SETTING SOURCE SUMMARY®
TC04816690.2r Page A-6
1/2 - 1 Mile NNECAOG11000205158 1

STATE OIL/GAS WELL INFORMATION

LOCATION

FROM TPWELL IDMAP ID

OTHER STATE DATABASE INFORMATION
1/2 - 1 Mile WNW3920 19
1/2 - 1 Mile SE3949 18
1/2 - 1 Mile WNW3946 11
1/2 - 1 Mile South3964 B10
1/2 - 1 Mile South3961 B9
1/2 - 1 Mile South3960 B8
1/2 - 1 Mile North3919 6
1/2 - 1 Mile NE3916 A4
1/4 - 1/2 Mile SE3948 2

STATE DATABASE WELL INFORMATION

LOCATION

FROM TPWELL IDMAP ID
Note: PWS System location is not always the same as well location.

No PWS System Found

FEDERAL FRDS PUBLIC WATER SUPPLY SYSTEM INFORMATION

LOCATION

FROM TPWELL IDMAP ID
1/2 - 1 Mile EastUSGS40000139098 C17
1/2 - 1 Mile EastUSGS40000139097 C16
1/2 - 1 Mile EastUSGS40000139096 C15
1/2 - 1 Mile EastUSGS40000139099 C14
1/2 - 1 Mile EastUSGS40000139101 C13
1/2 - 1 Mile EastUSGS40000139100 C12
1/2 - 1 Mile SEUSGS40000139019 7
1/2 - 1 Mile NEUSGS40000139157 A5
1/2 - 1 Mile NorthUSGS40000139161 3
1/4 - 1/2 Mile SSEUSGS40000139064 1

FEDERAL USGS WELL INFORMATION

LOCATION

FROM TPWELL IDMAP ID

1.000State Database
Nearest PWS within 0.001 milesFederal FRDS PWS

1.000Federal USGS

WELL SEARCH DISTANCE INFORMATION
SEARCH DISTANCE (miles)DATABASE
opinion about the impact of contaminant migration on nearby drinking water wells. professional in assessing sources that may impact ground water flow direction, and in forming an EDR Local/Regional Water Agency records provide water well information to assist the environmental

LOCAL / REGIONAL WATER AGENCY RECORDS
®GEOCHECK - PHYSICAL SETTING SOURCE SUMMARY®
TC04816690.2r Page A-7
1/2 - 1 Mile SSWCAOG11000204628 3
1/2 - 1 Mile EastCAOG11000204569 2

STATE OIL/GAS WELL INFORMATION

LOCATION

FROM TPWELL IDMAP ID
®GEOCHECK - PHYSICAL SETTING SOURCE SUMMARY®
EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc. 1 2 0
120
1 2 0
1 20
120
1 2 0
12 0
1 2 0
1 2 0
1 2 0
CA
TC04816690.2r Page A-9
TOTAL DISSOLVED SOLIDSChemical:
530. MG/LFindings:21-FEB-13Sample Collected:

DOWNEYArea Served:
23000Connections:91000Pop Served:

Downey, CA 90241
9252 Stewart & Gray Road
Organization That Operates System:

DOWNEY - CITY, WATER DEPT.System Name:
1910034System Number:

WELL 24 (OLD PWC WELL 08B)Source Name:
1,000 Feet (10 Seconds)Precision:335529.0 1180650.0Source Lat/Long:

Active RawWell Status:Well/GroundwaterWater Type:

WELL/AMBNT/MUN/INTAKE/SUPPLYStation Type:07District Number:

Los AngelesCounty:1910034025FRDS Number:
4THUser ID:03S/12W-11E01 SPrime Station Code:

Water System Information:
2 SE
1/4 - 1/2 Mile
Lower
3948CA WELLS
Ground-water levels, Number of Measurements: 0
ftWellholedepth units:
544Wellholedepth:ftWelldepth units:
544Welldepth:Not ReportedConstruction date:

Not ReportedAquifer type:

Not ReportedFormation type:

California Coastal Basin aquifersAquifername:

USCountrycode:Not ReportedVert coord refsys:

Not ReportedVertcollection method:

Not ReportedVert accmeasure units:

Not ReportedVertacc measure val:Not ReportedVert measure units:

Not ReportedVert measure val:NAD83Horiz coord refsys:

Interpolated from mapHoriz Collection method:
secondsHoriz Acc measure units:1Horiz Acc measure:
24000Sourcemap scale:-118.116179Longitude:

33.9247366Latitude:Not ReportedContrib drainagearea units:

Not ReportedContrib drainagearea:Not ReportedDrainagearea Units:

Not ReportedDrainagearea value:18070105Huc code:

Not ReportedMonloc desc:

WellMonloc type:
003S012W11E001SMonloc name:

USGS-335529118065501Monloc Identifier:

USGS California Water Science CenterFormal name:

USGS-CAOrg. Identifier:
1 SSE
1/4 - 1/2 Mile
Lower
USGS40000139064FED USGS
Map ID
Direction
Distance
Elevation EDR ID NumberDatabase
®GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS®
TC04816690.2r Page A-10
MAGNESIUMChemical:

17. MG/LFindings:23-FEB-16Sample Collected:

CALCIUMChemical:

78. MG/LFindings:23-FEB-16Sample Collected:

HARDNESS (TOTAL) AS CACO3Chemical:
260. MG/LFindings:23-FEB-16Sample Collected:

NITRATE (AS N)Chemical:

2.5 MG/LFindings:23-FEB-16Sample Collected:

BICARBONATE ALKALINITYChemical:
200. MG/LFindings:23-FEB-16Sample Collected:

ALKALINITY (TOTAL) AS CACO3Chemical:
170. MG/LFindings:23-FEB-16Sample Collected:

PH, LABORATORYChemical:

7.76Findings:23-FEB-16Sample Collected:

SPECIFIC CONDUCTANCEChemical:
790. USFindings:23-FEB-16Sample Collected:

SOURCE TEMPERATURE CChemical:

67.3 CFindings:23-FEB-16Sample Collected:

GROSS ALPHA MDA95Chemical:

1.83 PCI/LFindings:15-DEC-15Sample Collected:

GROSS ALPHA COUNTING ERRORChemical:

1.3 PCI/LFindings:15-DEC-15Sample Collected:

GROSS ALPHA MDA95Chemical:

1.85 PCI/LFindings:19-AUG-15Sample Collected:

GROSS ALPHA COUNTING ERRORChemical:

1.73 PCI/LFindings:19-AUG-15Sample Collected:

GROSS ALPHA MDA95Chemical:

1.45 PCI/LFindings:06-MAY-15Sample Collected:

GROSS ALPHA COUNTING ERRORChemical:

1.16 PCI/LFindings:06-MAY-15Sample Collected:

GROSS ALPHA MDA95Chemical:

1.65 PCI/LFindings:24-MAR-15Sample Collected:

GROSS ALPHA COUNTING ERRORChemical:

1.41 PCI/LFindings:24-MAR-15Sample Collected:

NITRATE (AS NO3)Chemical:

13. MG/LFindings:13-FEB-15Sample Collected:

NITRATE (AS NO3)Chemical:

14. MG/LFindings:13-FEB-14Sample Collected:

AGGRSSIVE INDEX (CORROSIVITY)Chemical:

12.Findings:21-FEB-13Sample Collected:

NITRATE (AS NO3)Chemical:

14. MG/LFindings:21-FEB-13Sample Collected:

LANGELIER INDEX AT SOURCE TEMP.Chemical:

0.5Findings:21-FEB-13Sample Collected:
®GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS®
TC04816690.2r Page A-11
SODIUMChemical:

63. MG/LFindings:21-FEB-13Sample Collected:

MAGNESIUMChemical:

17. MG/LFindings:21-FEB-13Sample Collected:

CALCIUMChemical:

84. MG/LFindings:21-FEB-13Sample Collected:

HARDNESS (TOTAL) AS CACO3Chemical:
280. MG/LFindings:21-FEB-13Sample Collected:

BICARBONATE ALKALINITYChemical:
200. MG/LFindings:21-FEB-13Sample Collected:

ALKALINITY (TOTAL) AS CACO3Chemical:
160. MG/LFindings:21-FEB-13Sample Collected:

PH, LABORATORYChemical:

7.47Findings:21-FEB-13Sample Collected:

PH, FIELDChemical:

7.9Findings:21-FEB-13Sample Collected:

SPECIFIC CONDUCTANCEChemical:
800. USFindings:21-FEB-13Sample Collected:

SOURCE TEMPERATURE CChemical:

16.1 CFindings:21-FEB-13Sample Collected:

NITRATE (AS NO3)Chemical:

13. MG/LFindings:16-FEB-12Sample Collected:
1,4-DIOXANEChemical:

1.9 UG/LFindings:15-NOV-11Sample Collected:

NITRATE (AS NO3)Chemical:

14. MG/LFindings:09-FEB-11Sample Collected:

NITRATE + NITRITE (AS N)Chemical:

2.5 MG/LFindings:23-FEB-16Sample Collected:

AGGRSSIVE INDEX (CORROSIVITY)Chemical:

12.Findings:23-FEB-16Sample Collected:

LANGELIER INDEX AT SOURCE TEMP.Chemical:

0.4Findings:23-FEB-16Sample Collected:

TOTAL DISSOLVED SOLIDSChemical:
530. MG/LFindings:23-FEB-16Sample Collected:

FLUORIDE (F) (NATURAL-SOURCE)Chemical:

0.35 MG/LFindings:23-FEB-16Sample Collected:

SULFATEChemical:
110. MG/LFindings:23-FEB-16Sample Collected:

CHLORIDEChemical:

69. MG/LFindings:23-FEB-16Sample Collected:

POTASSIUMChemical:

4.4 MG/LFindings:23-FEB-16Sample Collected:

SODIUMChemical:

61. MG/LFindings:23-FEB-16Sample Collected:
®GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS®
TC04816690.2r Page A-12
WELL 15 (OLD WELL 06)Source Name:
1,000 Feet (10 Seconds)Precision:335610.0 1180639.0Source Lat/Long:

Active RawWell Status:Well/GroundwaterWater Type:

WELL/AMBNT/MUN/INTAKE/SUPPLYStation Type:07District Number:

Los AngelesCounty:1910034017FRDS Number:
4THUser ID:03S/12W-02L01 SPrime Station Code:

Water System Information:

A4
NE
1/2 - 1 Mile
Higher
3916CA WELLS
Ground-water levels, Number of Measurements: 0
ftWellholedepth units:
866Wellholedepth:ftWelldepth units:
866Welldepth:19540321Construction date:

Not ReportedAquifer type:

Not ReportedFormation type:

California Coastal Basin aquifersAquifername:

USCountrycode:NGVD29Vert coord refsys:

Interpolated from topographic mapVertcollection method:
feetVert accmeasure units:

2.5Vertacc measure val:feetVert measure units:
116Vert measure val:NAD83Horiz coord refsys:

Global positioning system (GPS), uncorrectedHoriz Collection method:
secondsHoriz Acc measure units:.5Horiz Acc measure:
24000Sourcemap scale:-118.1179099Longitude:

33.9369642Latitude:Not ReportedContrib drainagearea units:

Not ReportedContrib drainagearea:Not ReportedDrainagearea Units:

Not ReportedDrainagearea value:18070106Huc code:

LA WATER REPLENISHMENT DIST GPS LAT-LONGMonloc desc:

WellMonloc type:
003S012W03J001SMonloc name:

USGS-335612118070101Monloc Identifier:

USGS California Water Science CenterFormal name:

USGS-CAOrg. Identifier:
3 North
1/2 - 1 Mile
Higher
USGS40000139161FED USGS
ARSENICChemical:

2.1 UG/LFindings:21-FEB-13Sample Collected:

FLUORIDE (F) (NATURAL-SOURCE)Chemical:

0.36 MG/LFindings:21-FEB-13Sample Collected:

SULFATEChemical:
120. MG/LFindings:21-FEB-13Sample Collected:

CHLORIDEChemical:

78. MG/LFindings:21-FEB-13Sample Collected:

POTASSIUMChemical:

4.3 MG/LFindings:21-FEB-13Sample Collected:
®GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS®
TC04816690.2r Page A-13
LANGELIER INDEX AT SOURCE TEMP.Chemical:

0.11Findings:22-FEB-12Sample Collected:

TOTAL DISSOLVED SOLIDSChemical:
510. MG/LFindings:22-FEB-12Sample Collected:

ARSENICChemical:

2.7 UG/LFindings:22-FEB-12Sample Collected:

FLUORIDE (F) (NATURAL-SOURCE)Chemical:

0.32 MG/LFindings:22-FEB-12Sample Collected:

SULFATEChemical:
110. MG/LFindings:22-FEB-12Sample Collected:

CHLORIDEChemical:

78. MG/LFindings:22-FEB-12Sample Collected:

POTASSIUMChemical:

4.9 MG/LFindings:22-FEB-12Sample Collected:

SODIUMChemical:

65. MG/LFindings:22-FEB-12Sample Collected:

MAGNESIUMChemical:

17. MG/LFindings:22-FEB-12Sample Collected:

CALCIUMChemical:

71. MG/LFindings:22-FEB-12Sample Collected:

HARDNESS (TOTAL) AS CACO3Chemical:
250. MG/LFindings:22-FEB-12Sample Collected:

BICARBONATE ALKALINITYChemical:
150. MG/LFindings:22-FEB-12Sample Collected:

ALKALINITY (TOTAL) AS CACO3Chemical:
150. MG/LFindings:22-FEB-12Sample Collected:

PH, LABORATORYChemical:

7.68Findings:22-FEB-12Sample Collected:

PH, FIELDChemical:

7.6Findings:22-FEB-12Sample Collected:

SPECIFIC CONDUCTANCEChemical:
840. USFindings:22-FEB-12Sample Collected:

SOURCE TEMPERATURE CChemical:

16.6 CFindings:22-FEB-12Sample Collected:
1,4-DIOXANEChemical:

1.6 UG/LFindings:16-NOV-11Sample Collected:

NITRATE (AS NO3)Chemical:

14. MG/LFindings:09-FEB-11Sample Collected:

DOWNEYArea Served:
23000Connections:91000Pop Served:

Downey, CA 90241
9252 Stewart & Gray Road
Organization That Operates System:

DOWNEY - CITY, WATER DEPT.System Name:
1910034System Number:
®GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS®
TC04816690.2r Page A-14
GROSS ALPHA COUNTING ERRORChemical:

1.68 PCI/LFindings:24-MAR-15Sample Collected:

AGGRSSIVE INDEX (CORROSIVITY)Chemical:

12.Findings:12-FEB-15Sample Collected:

NITRATE (AS NO3)Chemical:

15. MG/LFindings:12-FEB-15Sample Collected:

LANGELIER INDEX AT SOURCE TEMP.Chemical:

1.2Findings:12-FEB-15Sample Collected:

TOTAL DISSOLVED SOLIDSChemical:
500. MG/LFindings:12-FEB-15Sample Collected:

ARSENICChemical:

2.3 UG/LFindings:12-FEB-15Sample Collected:

FLUORIDE (F) (NATURAL-SOURCE)Chemical:

0.32 MG/LFindings:12-FEB-15Sample Collected:

SULFATEChemical:
120. MG/LFindings:12-FEB-15Sample Collected:

CHLORIDEChemical:

83. MG/LFindings:12-FEB-15Sample Collected:

POTASSIUMChemical:

3.8 MG/LFindings:12-FEB-15Sample Collected:

SODIUMChemical:

57. MG/LFindings:12-FEB-15Sample Collected:

MAGNESIUMChemical:

16. MG/LFindings:12-FEB-15Sample Collected:

CALCIUMChemical:

72. MG/LFindings:12-FEB-15Sample Collected:

HARDNESS (TOTAL) AS CACO3Chemical:
250. MG/LFindings:12-FEB-15Sample Collected:

BICARBONATE ALKALINITYChemical:
200. MG/LFindings:12-FEB-15Sample Collected:

ALKALINITY (TOTAL) AS CACO3Chemical:
170. MG/LFindings:12-FEB-15Sample Collected:

PH, LABORATORYChemical:

7.43Findings:12-FEB-15Sample Collected:

SPECIFIC CONDUCTANCEChemical:
810. USFindings:12-FEB-15Sample Collected:

NITRATE (AS NO3)Chemical:

14. MG/LFindings:13-FEB-14Sample Collected:

NITRATE (AS NO3)Chemical:

14. MG/LFindings:21-FEB-13Sample Collected:

AGGRSSIVE INDEX (CORROSIVITY)Chemical:

12.Findings:22-FEB-12Sample Collected:

NITRATE (AS NO3)Chemical:

13. MG/LFindings:22-FEB-12Sample Collected:
®GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS®
TC04816690.2r Page A-15
Note: Other conditions existed that would affect the measured water level. 1951-07 86
Date
Feet below
Surface
Feet to
Sealevel
-------------------------------------------------
Ground-water levels, Number of Measurements: 1
ftWellholedepth units:
860Wellholedepth:ftWelldepth units:
840Welldepth:19510619Construction date:

Not ReportedAquifer type:

Not ReportedFormation type:

California Coastal Basin aquifersAquifername:

USCountrycode:NGVD29Vert coord refsys:

Interpolated from topographic mapVertcollection method:
feetVert accmeasure units:

2.5Vertacc measure val:feetVert measure units:
115Vert measure val:NAD83Horiz coord refsys:

Global positioning system (GPS), uncorrectedHoriz Collection method:
secondsHoriz Acc measure units:.5Horiz Acc measure:
24000Sourcemap scale:-118.1111944Longitude:

33.9358056Latitude:Not ReportedContrib drainagearea units:

Not ReportedContrib drainagearea:Not ReportedDrainagearea Units:

Not ReportedDrainagearea value:Not ReportedHuc code:

Not ReportedMonloc desc:

WellMonloc type:
003S012W02L001SMonloc name:

USGS-335609118064001Monloc Identifier:

USGS California Water Science CenterFormal name:

USGS-CAOrg. Identifier:

A5
NE
1/2 - 1 Mile
Higher
USGS40000139157FED USGS
NITRATE + NITRITE (AS N)Chemical:

2.7 MG/LFindings:23-FEB-16Sample Collected:

NITRATE (AS N)Chemical:

2.7 MG/LFindings:23-FEB-16Sample Collected:

GROSS ALPHA MDA95Chemical:

1.85 PCI/LFindings:15-DEC-15Sample Collected:

GROSS ALPHA COUNTING ERRORChemical:

1.48 PCI/LFindings:15-DEC-15Sample Collected:

GROSS ALPHA MDA95Chemical:

1.8 PCI/LFindings:19-AUG-15Sample Collected:

GROSS ALPHA COUNTING ERRORChemical:

1.55 PCI/LFindings:19-AUG-15Sample Collected:

GROSS ALPHA MDA95Chemical:

1.59 PCI/LFindings:06-MAY-15Sample Collected:

GROSS ALPHA COUNTING ERRORChemical:

1.39 PCI/LFindings:06-MAY-15Sample Collected:

GROSS ALPHA MDA95Chemical:

2.09 PCI/LFindings:24-MAR-15Sample Collected:
®GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS®
TC04816690.2r Page A-16
CHLORIDEChemical:

87. MG/LFindings:10-MAR-15Sample Collected:

POTASSIUMChemical:

4.5 MG/LFindings:10-MAR-15Sample Collected:

SODIUMChemical:

70. MG/LFindings:10-MAR-15Sample Collected:

MAGNESIUMChemical:

17. MG/LFindings:10-MAR-15Sample Collected:

CALCIUMChemical:

83. MG/LFindings:10-MAR-15Sample Collected:

HARDNESS (TOTAL) AS CACO3Chemical:
280. MG/LFindings:10-MAR-15Sample Collected:

BICARBONATE ALKALINITYChemical:
200. MG/LFindings:10-MAR-15Sample Collected:

ALKALINITY (TOTAL) AS CACO3Chemical:
170. MG/LFindings:10-MAR-15Sample Collected:

PH, LABORATORYChemical:

7.51Findings:10-MAR-15Sample Collected:

SPECIFIC CONDUCTANCEChemical:
840. USFindings:10-MAR-15Sample Collected:

NITRATE (AS NO3)Chemical:

14. MG/LFindings:13-FEB-14Sample Collected:

NITRATE (AS NO3)Chemical:

14. MG/LFindings:20-MAR-13Sample Collected:

AGGRSSIVE INDEX (CORROSIVITY)Chemical:

12.Findings:22-FEB-12Sample Collected:

DOWNEYArea Served:
23000Connections:91000Pop Served:

Downey, CA 90241
9252 Stewart & Gray Road
Organization That Operates System:

DOWNEY - CITY, WATER DEPT.System Name:
1910034System Number:

WELL 16 (OLD WELL 10)Source Name:
1,000 Feet (10 Seconds)Precision:335624.0 1180703.0Source Lat/Long:

Active RawWell Status:Well/GroundwaterWater Type:

WELL/AMBNT/MUN/INTAKE/SUPPLYStation Type:07District Number:

Los AngelesCounty:1910034018FRDS Number:
4THUser ID:03S/12W-03J01 SPrime Station Code:

Water System Information:
6 North
1/2 - 1 Mile
Higher
3919CA WELLS
Map ID
Direction
Distance
Elevation EDR ID NumberDatabase
®GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS®
TC04816690.2r Page A-17
SPECIFIC CONDUCTANCEChemical:
840. USFindings:22-FEB-12Sample Collected:

SOURCE TEMPERATURE CChemical:

17.2 CFindings:22-FEB-12Sample Collected:

NITRATE (AS NO3)Chemical:

13. MG/LFindings:09-FEB-11Sample Collected:

NITRATE + NITRITE (AS N)Chemical:

2.4 MG/LFindings:23-FEB-16Sample Collected:

NITRATE (AS N)Chemical:

2.4 MG/LFindings:23-FEB-16Sample Collected:

GROSS ALPHA MDA95Chemical:

2.01 PCI/LFindings:15-DEC-15Sample Collected:

GROSS ALPHA COUNTING ERRORChemical:

1.97 PCI/LFindings:15-DEC-15Sample Collected:

GROSS ALPHA MDA95Chemical:

1.94 PCI/LFindings:19-AUG-15Sample Collected:

GROSS ALPHA COUNTING ERRORChemical:

1.38 PCI/LFindings:19-AUG-15Sample Collected:

GROSS ALPHA MDA95Chemical:

1.62 PCI/LFindings:06-MAY-15Sample Collected:

GROSS ALPHA COUNTING ERRORChemical:

1.15 PCI/LFindings:06-MAY-15Sample Collected:

GROSS ALPHA MDA95Chemical:

2.25 PCI/LFindings:24-MAR-15Sample Collected:

GROSS ALPHA COUNTING ERRORChemical:

1.34 PCI/LFindings:24-MAR-15Sample Collected:

COLORChemical:

2.5 UNITSFindings:13-MAR-15Sample Collected:

NITRATE + NITRITE (AS N)Chemical:
3000. MG/LFindings:10-MAR-15Sample Collected:

AGGRSSIVE INDEX (CORROSIVITY)Chemical:

12.Findings:10-MAR-15Sample Collected:

NITRATE (AS NO3)Chemical:

13. MG/LFindings:10-MAR-15Sample Collected:

LANGELIER INDEX AT SOURCE TEMP.Chemical:

0.86Findings:10-MAR-15Sample Collected:

TOTAL DISSOLVED SOLIDSChemical:
530. MG/LFindings:10-MAR-15Sample Collected:

ARSENICChemical:

2.2 UG/LFindings:10-MAR-15Sample Collected:

FLUORIDE (F) (NATURAL-SOURCE)Chemical:

0.43 MG/LFindings:10-MAR-15Sample Collected:

SULFATEChemical:
110. MG/LFindings:10-MAR-15Sample Collected:
®GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS®
TC04816690.2r Page A-18
24000Sourcemap scale:-118.1078454Longitude:

33.9208477Latitude:Not ReportedContrib drainagearea units:

Not ReportedContrib drainagearea:Not ReportedDrainagearea Units:

Not ReportedDrainagearea value:18070106Huc code:

Not ReportedMonloc desc:

WellMonloc type:
003S012W11K006SMonloc name:

USGS-335515118062501Monloc Identifier:

USGS California Water Science CenterFormal name:

USGS-CAOrg. Identifier:
7 SE
1/2 - 1 Mile
Lower
USGS40000139019FED USGS
NITRATE (AS NO3)Chemical:

13. MG/LFindings:22-FEB-12Sample Collected:

LANGELIER INDEX AT SOURCE TEMP.Chemical:

0.21Findings:22-FEB-12Sample Collected:

TOTAL DISSOLVED SOLIDSChemical:
520. MG/LFindings:22-FEB-12Sample Collected:

ARSENICChemical:

2.6 UG/LFindings:22-FEB-12Sample Collected:

FLUORIDE (F) (NATURAL-SOURCE)Chemical:

0.38 MG/LFindings:22-FEB-12Sample Collected:

SULFATEChemical:
120. MG/LFindings:22-FEB-12Sample Collected:

CHLORIDEChemical:

84. MG/LFindings:22-FEB-12Sample Collected:

POTASSIUMChemical:

4.8 MG/LFindings:22-FEB-12Sample Collected:

SODIUMChemical:

64. MG/LFindings:22-FEB-12Sample Collected:

MAGNESIUMChemical:

17. MG/LFindings:22-FEB-12Sample Collected:

CALCIUMChemical:

66. MG/LFindings:22-FEB-12Sample Collected:

HARDNESS (TOTAL) AS CACO3Chemical:
240. MG/LFindings:22-FEB-12Sample Collected:

BICARBONATE ALKALINITYChemical:
160. MG/LFindings:22-FEB-12Sample Collected:

ALKALINITY (TOTAL) AS CACO3Chemical:
160. MG/LFindings:22-FEB-12Sample Collected:

PH, LABORATORYChemical:

7.74Findings:22-FEB-12Sample Collected:

PH, FIELDChemical:

7.7Findings:22-FEB-12Sample Collected:
®GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS®
TC04816690.2r Page A-19
RADIUM 228 MDA95Chemical:

0.254 PCI/LFindings:25-APR-13Sample Collected:

RADIUM 228 COUNTING ERRORChemical:

0.542 PCI/LFindings:25-APR-13Sample Collected:
1,4-DIOXANEChemical:

3.3 UG/LFindings:17-APR-13Sample Collected:

NITRATE (AS NO3)Chemical:

13. MG/LFindings:17-APR-13Sample Collected:

URANIUM (PCI/L)Chemical:

2.3 PCI/LFindings:17-APR-13Sample Collected:

FLUORIDE (F) (NATURAL-SOURCE)Chemical:

5.4 MG/LFindings:17-APR-13Sample Collected:
1,4-DIOXANEChemical:

4.5 UG/LFindings:09-OCT-12Sample Collected:

PROMETONChemical:

0.12 UG/LFindings:26-SEP-12Sample Collected:

BELLFLOWER-NORWALKArea Served:
15837Connections:70000Pop Served:

DOWNEY, CA 90241
PO BOX 7002 (9750 WASHBURN RD)
Organization That Operates System:

PARK WC - BELLFLOWER-NORWALKSystem Name:
1910211System Number:

WELL 28-B - STANDBYSource Name:

UndefinedPrecision:335500.0 1180700.0Source Lat/Long:

Standby RawWell Status:Well/GroundwaterWater Type:

WELL/AMBNT/MUN/INTAKE/SUPPLYStation Type:07District Number:

Los AngelesCounty:1910211016FRDS Number:
4THUser ID:03S/12W-14F01 SPrime Station Code:

Water System Information:

B8
South
1/2 - 1 Mile
Lower
3960CA WELLS
Ground-water levels, Number of Measurements: 0
ftWellholedepth units:
527Wellholedepth:ftWelldepth units:
500Welldepth:Not ReportedConstruction date:

Not ReportedAquifer type:

Not ReportedFormation type:

California Coastal Basin aquifersAquifername:

USCountrycode:Not ReportedVert coord refsys:

Not ReportedVertcollection method:

Not ReportedVert accmeasure units:

Not ReportedVertacc measure val:Not ReportedVert measure units:

Not ReportedVert measure val:NAD83Horiz coord refsys:

Interpolated from mapHoriz Collection method:
secondsHoriz Acc measure units:1Horiz Acc measure:
®GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS®
TC04816690.2r Page A-20
FLUORIDE (F) (NATURAL-SOURCE)Chemical:

4.7 MG/LFindings:07-MAY-15Sample Collected:

SULFATEChemical:
120. MG/LFindings:07-MAY-15Sample Collected:

CHLORIDEChemical:

77. MG/LFindings:07-MAY-15Sample Collected:

POTASSIUMChemical:

4.1 MG/LFindings:07-MAY-15Sample Collected:

SODIUMChemical:

65. MG/LFindings:07-MAY-15Sample Collected:

MAGNESIUMChemical:

16. MG/LFindings:07-MAY-15Sample Collected:

CALCIUMChemical:

85.4 MG/LFindings:07-MAY-15Sample Collected:

HARDNESS (TOTAL) AS CACO3Chemical:
280. MG/LFindings:07-MAY-15Sample Collected:

BICARBONATE ALKALINITYChemical:
220. MG/LFindings:07-MAY-15Sample Collected:

ALKALINITY (TOTAL) AS CACO3Chemical:
180. MG/LFindings:07-MAY-15Sample Collected:

PH, LABORATORYChemical:

7.8Findings:07-MAY-15Sample Collected:

SPECIFIC CONDUCTANCEChemical:
840. USFindings:07-MAY-15Sample Collected:
1,4-DIOXANEChemical:

3.5 UG/LFindings:16-OCT-14Sample Collected:

FLUORIDE (F) (NATURAL-SOURCE)Chemical:

0.35 MG/LFindings:16-JUN-14Sample Collected:
1,4-DIOXANEChemical:

3.3 UG/LFindings:17-APR-14Sample Collected:

NITRATE (AS NO3)Chemical:

13. MG/LFindings:17-APR-14Sample Collected:
1,4-DIOXANEChemical:

3.1 UG/LFindings:24-OCT-13Sample Collected:

FLUORIDE (F) (NATURAL-SOURCE)Chemical:

0.38 MG/LFindings:15-MAY-13Sample Collected:

GROSS ALPHA MDA95Chemical:

1.6e-002 PCI/LFindings:25-APR-13Sample Collected:

GROSS ALPHA COUNTING ERRORChemical:

0.258 PCI/LFindings:25-APR-13Sample Collected:

RADIUM, TOTAL, MDA95-NTNC ONLY, BY 903.0Chemical:

0.439 PCI/LFindings:25-APR-13Sample Collected:

RA-226 OR TOTAL RA BY 903.0 C.E.Chemical:

0.22 PCI/LFindings:25-APR-13Sample Collected:
®GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS®
TC04816690.2r Page A-21
POTASSIUMChemical:

4.3 MG/LFindings:12-APR-12Sample Collected:

SODIUMChemical:

64. MG/LFindings:12-APR-12Sample Collected:

MAGNESIUMChemical:

17. MG/LFindings:12-APR-12Sample Collected:

CALCIUMChemical:

87. MG/LFindings:12-APR-12Sample Collected:

HARDNESS (TOTAL) AS CACO3Chemical:
290. MG/LFindings:12-APR-12Sample Collected:

BICARBONATE ALKALINITYChemical:
220. MG/LFindings:12-APR-12Sample Collected:

ALKALINITY (TOTAL) AS CACO3Chemical:
180. MG/LFindings:12-APR-12Sample Collected:

PH, LABORATORYChemical:

7.59Findings:12-APR-12Sample Collected:

SPECIFIC CONDUCTANCEChemical:
840. USFindings:12-APR-12Sample Collected:
1,4-DIOXANEChemical:

3.5 UG/LFindings:20-OCT-11Sample Collected:
1,4-DIOXANEChemical:

3.6 UG/LFindings:21-APR-11Sample Collected:

NITRATE (AS NO3)Chemical:

13. MG/LFindings:21-APR-11Sample Collected:

FLUORIDE (F) (NATURAL-SOURCE)Chemical:

2.1 MG/LFindings:21-APR-11Sample Collected:

FLUORIDE (F) (NATURAL-SOURCE)Chemical:

0.31 MG/LFindings:25-JUN-15Sample Collected:
1,4-DIOXANEChemical:

3.2 UG/LFindings:07-MAY-15Sample Collected:

NITRATE + NITRITE (AS N)Chemical:
2900. MG/LFindings:07-MAY-15Sample Collected:

AGGRSSIVE INDEX (CORROSIVITY)Chemical:

12.4Findings:07-MAY-15Sample Collected:

NITRATE (AS NO3)Chemical:

13. MG/LFindings:07-MAY-15Sample Collected:

LANGELIER INDEX @ 60 CChemical:

1.03Findings:07-MAY-15Sample Collected:

TOTAL DISSOLVED SOLIDSChemical:
500. MG/LFindings:07-MAY-15Sample Collected:

FOAMING AGENTS (MBAS)Chemical:

7.9e-002 MG/LFindings:07-MAY-15Sample Collected:

ARSENICChemical:

2.2 UG/LFindings:07-MAY-15Sample Collected:
®GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS®
TC04816690.2r Page A-22
WELL 28-A - DESTROYEDSource Name:

UndefinedPrecision:335500.0 1180700.0Source Lat/Long:

DestroyedWell Status:Well/GroundwaterWater Type:

WELL/AMBNT/MUN/INTAKE/SUPPLYStation Type:07District Number:

Los AngelesCounty:1910211015FRDS Number:
4THUser ID:03S/12W-15A03 SPrime Station Code:

Water System Information:

B10
South
1/2 - 1 Mile
Lower
3964CA WELLS
BELLFLOWERArea Served:
2005Connections:9000Pop Served:

BELLFLOWER 90706
P O BOX 117
Organization That Operates System:

PEERLESS WCSystem Name:
1910018System Number:

WELL 14 - STANDBYSource Name:

UndefinedPrecision:335500.0 1180700.0Source Lat/Long:

Standby RawWell Status:Well/GroundwaterWater Type:

WELL/AMBNT/MUN/INTAKE/SUPPLYStation Type:07District Number:

Los AngelesCounty:1910018012FRDS Number:
4THUser ID:03S/12W-14F02 SPrime Station Code:

Water System Information:

B9
South
1/2 - 1 Mile
Lower
3961CA WELLS
FLUORIDE (F) (NATURAL-SOURCE)Chemical:

0.46 MG/LFindings:06-JUN-12Sample Collected:
1,4-DIOXANEChemical:

3.5 UG/LFindings:12-APR-12Sample Collected:

NITRATE + NITRITE (AS N)Chemical:
2900. MG/LFindings:12-APR-12Sample Collected:

AGGRSSIVE INDEX (CORROSIVITY)Chemical:

12.2Findings:12-APR-12Sample Collected:

NITRATE (AS NO3)Chemical:

13. MG/LFindings:12-APR-12Sample Collected:

LANGELIER INDEX @ 60 CChemical:

0.822Findings:12-APR-12Sample Collected:

TOTAL DISSOLVED SOLIDSChemical:
500. MG/LFindings:12-APR-12Sample Collected:

ARSENICChemical:

2.1 UG/LFindings:12-APR-12Sample Collected:

FLUORIDE (F) (NATURAL-SOURCE)Chemical:

4.4 MG/LFindings:12-APR-12Sample Collected:

SULFATEChemical:
130. MG/LFindings:12-APR-12Sample Collected:

CHLORIDEChemical:

76. MG/LFindings:12-APR-12Sample Collected:
®GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS®
TC04816690.2r Page A-23
Ground-water levels, Number of Measurements: 0
ftWellholedepth units:
1502Wellholedepth:ftWelldepth units:
500Welldepth:20061128Construction date:

Not ReportedAquifer type:

Not ReportedFormation type:

California Coastal Basin aquifersAquifername:

USCountrycode:NGVD29Vert coord refsys:

Interpolated from topographic mapVertcollection method:
feetVert accmeasure units:

2.5Vertacc measure val:feetVert measure units:
115Vert measure val:NAD83Horiz coord refsys:

Global positioning system (GPS), uncorrectedHoriz Collection method:
secondsHoriz Acc measure units:.1Horiz Acc measure:
24000Sourcemap scale:-118.1031278Longitude:

33.929275Latitude:Not ReportedContrib drainagearea units:

Not ReportedContrib drainagearea:Not ReportedDrainagearea Units:

Not ReportedDrainagearea value:Not ReportedHuc code:

Not ReportedMonloc desc:

WellMonloc type:
003S012W11A011SMonloc name:

USGS-335545118061105Monloc Identifier:

USGS California Water Science CenterFormal name:

USGS-CAOrg. Identifier:

C12
East
1/2 - 1 Mile
Higher
USGS40000139100FED USGS
BELLFLOWER-NORWALKArea Served:
15837Connections:70000Pop Served:

DOWNEY, CA 90241
PO BOX 7002 (9750 WASHBURN RD)
Organization That Operates System:

PARK WC - BELLFLOWER-NORWALKSystem Name:
1910211System Number:

WELL 08-A - DESTROYEDSource Name:

UndefinedPrecision:335600.0 1180800.0Source Lat/Long:

DestroyedWell Status:Well/GroundwaterWater Type:

WELL/AMBNT/MUN/INTAKE/SUPPLYStation Type:07District Number:

Los AngelesCounty:1910211009FRDS Number:
4THUser ID:03S/12W-10C03 SPrime Station Code:

Water System Information:
11 WNW
1/2 - 1 Mile
Higher
3946CA WELLS
BELLFLOWER-NORWALKArea Served:
15837Connections:70000Pop Served:

DOWNEY, CA 90241
PO BOX 7002 (9750 WASHBURN RD)
Organization That Operates System:

PARK WC - BELLFLOWER-NORWALKSystem Name:
1910211System Number:
®GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS®
TC04816690.2r Page A-24
Not ReportedFormation type:

California Coastal Basin aquifersAquifername:

USCountrycode:NGVD29Vert coord refsys:

Interpolated from topographic mapVertcollection method:
feetVert accmeasure units:

2.5Vertacc measure val:feetVert measure units:
115Vert measure val:NAD83Horiz coord refsys:

Global positioning system (GPS), uncorrectedHoriz Collection method:
secondsHoriz Acc measure units:.1Horiz Acc measure:
24000Sourcemap scale:-118.1031278Longitude:

33.929275Latitude:Not ReportedContrib drainagearea units:

Not ReportedContrib drainagearea:Not ReportedDrainagearea Units:

Not ReportedDrainagearea value:Not ReportedHuc code:

Not ReportedMonloc desc:

WellMonloc type:
003S012W11A010SMonloc name:

USGS-335545118061104Monloc Identifier:

USGS California Water Science CenterFormal name:

USGS-CAOrg. Identifier:

C14
East
1/2 - 1 Mile
Higher
USGS40000139099FED USGS
Ground-water levels, Number of Measurements: 0
ftWellholedepth units:
1502Wellholedepth:ftWelldepth units:
256Welldepth:20061128Construction date:

Not ReportedAquifer type:

Not ReportedFormation type:

California Coastal Basin aquifersAquifername:

USCountrycode:NGVD29Vert coord refsys:

Interpolated from topographic mapVertcollection method:
feetVert accmeasure units:

2.5Vertacc measure val:feetVert measure units:
115Vert measure val:NAD83Horiz coord refsys:

Global positioning system (GPS), uncorrectedHoriz Collection method:
secondsHoriz Acc measure units:.1Horiz Acc measure:
24000Sourcemap scale:-118.1031278Longitude:

33.929275Latitude:Not ReportedContrib drainagearea units:

Not ReportedContrib drainagearea:Not ReportedDrainagearea Units:

Not ReportedDrainagearea value:Not ReportedHuc code:

Not ReportedMonloc desc:

WellMonloc type:
003S012W11A012SMonloc name:

USGS-335545118061106Monloc Identifier:

USGS California Water Science CenterFormal name:

USGS-CAOrg. Identifier:

C13
East
1/2 - 1 Mile
Higher
USGS40000139101FED USGS
Map ID
Direction
Distance
Elevation EDR ID NumberDatabase
®GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS®
TC04816690.2r Page A-25
Not ReportedFormation type:

California Coastal Basin aquifersAquifername:

USCountrycode:NGVD29Vert coord refsys:

Interpolated from topographic mapVertcollection method:
feetVert accmeasure units:

2.5Vertacc measure val:feetVert measure units:
115Vert measure val:NAD83Horiz coord refsys:

Global positioning system (GPS), uncorrectedHoriz Collection method:
secondsHoriz Acc measure units:.1Horiz Acc measure:
24000Sourcemap scale:-118.1031278Longitude:

33.929275Latitude:Not ReportedContrib drainagearea units:

Not ReportedContrib drainagearea:Not ReportedDrainagearea Units:

Not ReportedDrainagearea value:Not ReportedHuc code:

Not ReportedMonloc desc:

WellMonloc type:
003S012W11A008SMonloc name:

USGS-335545118061102Monloc Identifier:

USGS California Water Science CenterFormal name:

USGS-CAOrg. Identifier:

C16
East
1/2 - 1 Mile
Higher
USGS40000139097FED USGS
Ground-water levels, Number of Measurements: 0
ftWellholedepth units:
1502Wellholedepth:ftWelldepth units:
1480Welldepth:20061128Construction date:

Not ReportedAquifer type:

Not ReportedFormation type:

California Coastal Basin aquifersAquifername:

USCountrycode:NGVD29Vert coord refsys:

Interpolated from topographic mapVertcollection method:
feetVert accmeasure units:

2.5Vertacc measure val:feetVert measure units:
115Vert measure val:NAD83Horiz coord refsys:

Global positioning system (GPS), uncorrectedHoriz Collection method:
secondsHoriz Acc measure units:.1Horiz Acc measure:
24000Sourcemap scale:-118.1031278Longitude:

33.929275Latitude:Not ReportedContrib drainagearea units:

Not ReportedContrib drainagearea:Not ReportedDrainagearea Units:

Not ReportedDrainagearea value:Not ReportedHuc code:

Not ReportedMonloc desc:

WellMonloc type:
003S012W11A007SMonloc name:

USGS-335545118061101Monloc Identifier:

USGS California Water Science CenterFormal name:

USGS-CAOrg. Identifier:

C15
East
1/2 - 1 Mile
Higher
USGS40000139096FED USGS
Ground-water levels, Number of Measurements: 0
ftWellholedepth units:
1502Wellholedepth:ftWelldepth units:
820Welldepth:20061128Construction date:

Not ReportedAquifer type:
®GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS®
TC04816690.2r Page A-26
BELLFLOWER-NORWALKArea Served:
15837Connections:70000Pop Served:

DOWNEY, CA 90241
PO BOX 7002 (9750 WASHBURN RD)
Organization That Operates System:

PARK WC - BELLFLOWER-NORWALKSystem Name:
1910211System Number:

WELL 41-ASource Name:
1,000 Feet (10 Seconds)Precision:335508.0 1180628.0Source Lat/Long:

Active RawWell Status:Well/GroundwaterWater Type:

WELL/AMBNT/MUN/INTAKEStation Type:07District Number:

Los AngelesCounty:1910211026FRDS Number:
4THUser ID:03S/12W-11K06 SPrime Station Code:

Water System Information:
18 SE
1/2 - 1 Mile
Lower
3949CA WELLS
Ground-water levels, Number of Measurements: 0
ftWellholedepth units:
1502Wellholedepth:ftWelldepth units:
980Welldepth:20061128Construction date:

Not ReportedAquifer type:

Not ReportedFormation type:

California Coastal Basin aquifersAquifername:

USCountrycode:NGVD29Vert coord refsys:

Interpolated from topographic mapVertcollection method:
feetVert accmeasure units:

2.5Vertacc measure val:feetVert measure units:
115Vert measure val:NAD83Horiz coord refsys:

Global positioning system (GPS), uncorrectedHoriz Collection method:
secondsHoriz Acc measure units:.1Horiz Acc measure:
24000Sourcemap scale:-118.1031278Longitude:

33.929275Latitude:Not ReportedContrib drainagearea units:

Not ReportedContrib drainagearea:Not ReportedDrainagearea Units:

Not ReportedDrainagearea value:Not ReportedHuc code:

Not ReportedMonloc desc:

WellMonloc type:
003S012W11A009SMonloc name:

USGS-335545118061103Monloc Identifier:

USGS California Water Science CenterFormal name:

USGS-CAOrg. Identifier:

C17
East
1/2 - 1 Mile
Higher
USGS40000139098FED USGS
Ground-water levels, Number of Measurements: 0
ftWellholedepth units:
1502Wellholedepth:ftWelldepth units:
1280Welldepth:20061128Construction date:

Not ReportedAquifer type:
®GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS®
TC04816690.2r Page A-27
FLUORIDE (F) (NATURAL-SOURCE)Chemical:

0.38 MG/LFindings:21-APR-11Sample Collected:

SULFATEChemical:
110. MG/LFindings:21-APR-11Sample Collected:

CHLORIDEChemical:

79. MG/LFindings:21-APR-11Sample Collected:

POTASSIUMChemical:

3.9 MG/LFindings:21-APR-11Sample Collected:

SODIUMChemical:

62. MG/LFindings:21-APR-11Sample Collected:

MAGNESIUMChemical:

13. MG/LFindings:21-APR-11Sample Collected:

CALCIUMChemical:

68. MG/LFindings:21-APR-11Sample Collected:

HARDNESS (TOTAL) AS CACO3Chemical:
230. MG/LFindings:21-APR-11Sample Collected:

BICARBONATE ALKALINITYChemical:
200. MG/LFindings:21-APR-11Sample Collected:

ALKALINITY (TOTAL) AS CACO3Chemical:
170. MG/LFindings:21-APR-11Sample Collected:

PH, LABORATORYChemical:

7.69Findings:21-APR-11Sample Collected:

SPECIFIC CONDUCTANCEChemical:
660. USFindings:21-APR-11Sample Collected:

GROSS ALPHA MDA95Chemical:

4.e-002 PCI/LFindings:19-MAY-16Sample Collected:
1,4-DIOXANEChemical:

1.4 UG/LFindings:19-MAY-16Sample Collected:

URANIUM (PCI/L)Chemical:

1.4 PCI/LFindings:19-MAY-16Sample Collected:

GROSS ALPHA COUNTING ERRORChemical:

0.163 PCI/LFindings:19-MAY-16Sample Collected:

FLUORIDE (F) (NATURAL-SOURCE)Chemical:

0.32 MG/LFindings:19-MAY-16Sample Collected:

NITRATE (AS N)Chemical:

2.3 MG/LFindings:19-MAY-16Sample Collected:

RADIUM 228 MDA95Chemical:

0.253 PCI/LFindings:19-MAY-16Sample Collected:

RADIUM 226 MDA95Chemical:

0.47 PCI/LFindings:19-MAY-16Sample Collected:

RADIUM 228 COUNTING ERRORChemical:

0.525 PCI/LFindings:19-MAY-16Sample Collected:

RADIUM 226 COUNTING ERRORChemical:

0.341 PCI/LFindings:19-MAY-16Sample Collected:
®GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS®
TC04816690.2r Page A-28
MAGNESIUMChemical:

14.9 MG/LFindings:17-APR-14Sample Collected:

CALCIUMChemical:

76.4 MG/LFindings:17-APR-14Sample Collected:

HARDNESS (TOTAL) AS CACO3Chemical:
250. MG/LFindings:17-APR-14Sample Collected:

BICARBONATE ALKALINITYChemical:
200. MG/LFindings:17-APR-14Sample Collected:

ALKALINITY (TOTAL) AS CACO3Chemical:
160. MG/LFindings:17-APR-14Sample Collected:

PH, LABORATORYChemical:

7.46Findings:17-APR-14Sample Collected:

SPECIFIC CONDUCTANCEChemical:
790. USFindings:17-APR-14Sample Collected:
1,4-DIOXANEChemical:

1.7 UG/LFindings:17-APR-13Sample Collected:

NITRATE (AS NO3)Chemical:

13. MG/LFindings:17-APR-13Sample Collected:

FLUORIDE (F) (NATURAL-SOURCE)Chemical:

0.37 MG/LFindings:17-APR-13Sample Collected:
1,4-DIOXANEChemical:

1.8 UG/LFindings:09-OCT-12Sample Collected:
1,4-DIOXANEChemical:

1.6 UG/LFindings:12-APR-12Sample Collected:

NITRATE (AS NO3)Chemical:

12. MG/LFindings:12-APR-12Sample Collected:

FLUORIDE (F) (NATURAL-SOURCE)Chemical:

0.39 MG/LFindings:12-APR-12Sample Collected:
1,4-DIOXANEChemical:

1.6 UG/LFindings:20-OCT-11Sample Collected:
1,4-DIOXANEChemical:

1.7 UG/LFindings:21-APR-11Sample Collected:

NITRATE + NITRITE (AS N)Chemical:
2900. MG/LFindings:21-APR-11Sample Collected:

AGGRSSIVE INDEX (CORROSIVITY)Chemical:

12.2Findings:21-APR-11Sample Collected:

TURBIDITY, LABORATORYChemical:

0.2 NTUFindings:21-APR-11Sample Collected:

NITRATE (AS NO3)Chemical:

13. MG/LFindings:21-APR-11Sample Collected:

LANGELIER INDEX @ 60 CChemical:

0.792Findings:21-APR-11Sample Collected:

TOTAL DISSOLVED SOLIDSChemical:
490. MG/LFindings:21-APR-11Sample Collected:
®GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS®
TC04816690.2r Page A-29
DOWNEYArea Served:
23000Connections:91000Pop Served:

Downey, CA 90241
9252 Stewart & Gray Road
Organization That Operates System:

DOWNEY - CITY, WATER DEPT.System Name:
1910034System Number:

WELL 19 (OLD WELL 01)Source Name:
1,000 Feet (10 Seconds)Precision:335611.0 1180800.0Source Lat/Long:

Active RawWell Status:Well/GroundwaterWater Type:

WELL/AMBNT/MUN/INTAKE/SUPPLYStation Type:07District Number:

Los AngelesCounty:1910034021FRDS Number:
4THUser ID:03S/12W-03M01 SPrime Station Code:

Water System Information:
19 WNW
1/2 - 1 Mile
Higher
3920CA WELLS
1,4-DIOXANEChemical:

1.4 UG/LFindings:09-APR-15Sample Collected:

NITRATE (AS NO3)Chemical:

11. MG/LFindings:09-APR-15Sample Collected:

FLUORIDE (F) (NATURAL-SOURCE)Chemical:

0.27 MG/LFindings:09-APR-15Sample Collected:
1,4-DIOXANEChemical:

1.4 UG/LFindings:13-NOV-14Sample Collected:
1,4-DIOXANEChemical:

1.5 UG/LFindings:17-APR-14Sample Collected:

NITRATE + NITRITE (AS N)Chemical:
2700. MG/LFindings:17-APR-14Sample Collected:

AGGRSSIVE INDEX (CORROSIVITY)Chemical:

11.9Findings:17-APR-14Sample Collected:

NITRATE (AS NO3)Chemical:

12. MG/LFindings:17-APR-14Sample Collected:

LANGELIER INDEX @ 60 CChemical:

0.599Findings:17-APR-14Sample Collected:

TOTAL DISSOLVED SOLIDSChemical:
480. MG/LFindings:17-APR-14Sample Collected:

FLUORIDE (F) (NATURAL-SOURCE)Chemical:

0.3 MG/LFindings:17-APR-14Sample Collected:

SULFATEChemical:
120. MG/LFindings:17-APR-14Sample Collected:

CHLORIDEChemical:

85. MG/LFindings:17-APR-14Sample Collected:

POTASSIUMChemical:

4.1 MG/LFindings:17-APR-14Sample Collected:

SODIUMChemical:

68. MG/LFindings:17-APR-14Sample Collected:
®GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS®
TC04816690.2r Page A-30
TURBIDITY, LABORATORYChemical:

0.52 NTUFindings:21-FEB-13Sample Collected:

NITRATE (AS NO3)Chemical:

10. MG/LFindings:21-FEB-13Sample Collected:

LANGELIER INDEX AT SOURCE TEMP.Chemical:

0.48Findings:21-FEB-13Sample Collected:

TOTAL DISSOLVED SOLIDSChemical:
570. MG/LFindings:21-FEB-13Sample Collected:

ARSENICChemical:

2.2 UG/LFindings:21-FEB-13Sample Collected:

FLUORIDE (F) (NATURAL-SOURCE)Chemical:

0.39 MG/LFindings:21-FEB-13Sample Collected:

SULFATEChemical:
140. MG/LFindings:21-FEB-13Sample Collected:

CHLORIDEChemical:

82. MG/LFindings:21-FEB-13Sample Collected:

POTASSIUMChemical:

4.5 MG/LFindings:21-FEB-13Sample Collected:

SODIUMChemical:

64. MG/LFindings:21-FEB-13Sample Collected:

MAGNESIUMChemical:

19. MG/LFindings:21-FEB-13Sample Collected:

CALCIUMChemical:

94. MG/LFindings:21-FEB-13Sample Collected:

HARDNESS (TOTAL) AS CACO3Chemical:
310. MG/LFindings:21-FEB-13Sample Collected:

BICARBONATE ALKALINITYChemical:
210. MG/LFindings:21-FEB-13Sample Collected:

ALKALINITY (TOTAL) AS CACO3Chemical:
180. MG/LFindings:21-FEB-13Sample Collected:

PH, LABORATORYChemical:

7.4Findings:21-FEB-13Sample Collected:

PH, FIELDChemical:

7.8Findings:21-FEB-13Sample Collected:

SPECIFIC CONDUCTANCEChemical:
840. USFindings:21-FEB-13Sample Collected:

SOURCE TEMPERATURE CChemical:

15.3 CFindings:21-FEB-13Sample Collected:

NITRATE (AS NO3)Chemical:

9.9 MG/LFindings:22-FEB-12Sample Collected:
1,4-DIOXANEChemical:

1.4 UG/LFindings:16-NOV-11Sample Collected:

NITRATE (AS NO3)Chemical:

9.2 MG/LFindings:17-FEB-11Sample Collected:
®GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS®
TC04816690.2r Page A-31
GROSS ALPHA MDA95Chemical:

1.56 PCI/LFindings:06-MAY-15Sample Collected:

GROSS ALPHA COUNTING ERRORChemical:

1.42 PCI/LFindings:06-MAY-15Sample Collected:

GROSS ALPHA MDA95Chemical:

2.13 PCI/LFindings:24-MAR-15Sample Collected:

GROSS ALPHA COUNTING ERRORChemical:

1.81 PCI/LFindings:24-MAR-15Sample Collected:

NITRATE (AS NO3)Chemical:

8.5 MG/LFindings:13-FEB-15Sample Collected:

NITRATE (AS NO3)Chemical:

9.6 MG/LFindings:13-FEB-14Sample Collected:

AGGRSSIVE INDEX (CORROSIVITY)Chemical:

12.Findings:21-FEB-13Sample Collected:
®GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS®
TC04816690.2r Page A-32
3 SSW
1/2 - 1 Mile
CAOG11000204628OIL_GAS
CAOG11000204569Site id:

AOGGissymbol:UnknownDirectiona:

Not ReportedCompletion:Not ReportedAbandonedd:
0Redrillfoo:
0Welldeptha:

Not ReportedSpuddate:NConfidenti:

NHydraulica:NEpawell:
1Wellnumber:Not ReportedLeasename:

Not ReportedComments:
hudGissourcec:

Not ReportedLocationde:

Not ReportedElevation:SBBase meridian:
12WRange:03STownship:
11Section:Any AreaArea name:

Any FieldFieldname:Los AngelesCounty name:

L. B. Chase Oil Co.Operator name:

BWell status:NDryhole:

Not ReportedRedrill can:NBlm well:
03705280Api number:1District nun:
2 East
1/2 - 1 Mile
CAOG11000204569OIL_GAS
CAOG11000205158Site id:

PDHGissymbol:UnknownDirectiona:

Not ReportedCompletion:Not ReportedAbandonedd:
0Redrillfoo:
0Welldeptha:

Not ReportedSpuddate:NConfidenti:

NHydraulica:NEpawell:
1Wellnumber:Downey CommunityLeasename:

Not ReportedComments:
hudGissourcec:

Not ReportedLocationde:

Not ReportedElevation:SBBase meridian:
12WRange:03STownship:
2Section:Any AreaArea name:

Any FieldFieldname:Los AngelesCounty name:

Union Oil Company of CaliforniaOperator name:

PWell status:YDryhole:

Not ReportedRedrill can:NBlm well:
03706170Api number:1District nun:
1 NNE
1/2 - 1 Mile
CAOG11000205158OIL_GAS
Map ID
Direction
Distance EDR ID NumberDatabase
®GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS®
TC04816690.2r Page A-33
CAOG11000204628Site id:

PDHGissymbol:UnknownDirectiona:

Not ReportedCompletion:Not ReportedAbandonedd:
0Redrillfoo:
0Welldeptha:

Not ReportedSpuddate:NConfidenti:

NHydraulica:NEpawell:
1Wellnumber:Downey Land Co.Leasename:

Not ReportedComments:
hudGissourcec:

Not ReportedLocationde:

Not ReportedElevation:SBBase meridian:
12WRange:03STownship:
15Section:Any AreaArea name:

Any FieldFieldname:Los AngelesCounty name:

Downey Land Co.Operator name:

PWell status:YDryhole:

Not ReportedRedrill can:NBlm well:
03705362Api number:1District nun:
®GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS®
TC04816690.2r Page A-34
0%0%100%0.933 pCi/LBasement
Not ReportedNot ReportedNot ReportedNot ReportedLiving Area - 2nd Floor 0%2%98%0.711 pCi/LLiving Area - 1st Floor
% >20 pCi/L% 4-20 pCi/L% <4 pCi/LAverage ActivityArea
Number of sites tested: 63
Federal Area Radon Information for LOS ANGELES COUNTY, CA : Zone 3 indoor average level < 2 pCi/L.
: Zone 2 indoor average level >= 2 pCi/L and <= 4 pCi/L.

Note: Zone 1 indoor average level > 4 pCi/L.

Federal EPA Radon Zone for LOS ANGELES County: 2
01490241
______________________
> 4 pCi/LNum TestsZipcode
Radon Test Results
State Database: CA Radon

AREA RADON INFORMATION
®GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS
RADON
®

TOPOGRAPHIC INFORMATION
USGS 7.5’ Digital Elevation Model (DEM)
Source: United States Geologic Survey
EDR acquired the USGS 7.5’ Digital Elevation Model in 2002 and updated it in 2006. The 7.5 minute DEM corresponds to the USGS 1:24,000- and 1:25,000-scale topographic quadrangle maps. The DEM provides elevation data with consistent elevation units and projection.

Current USGS 7.5 Minute Topographic Map
Source: U.S. Geological Survey

HYDROLOGIC INFORMATION
Flood Zone Data: This data was obtained from the Federal Emergency Management Agency (FEMA). It depicts 100-year and 500-year flood zones as defined by FEMA. It includes the National Flood Hazard Layer (NFHL) which incorporates Flood Insurance Rate Map (FIRM) data and Q3 data from FEMA in areas not covered by NFHL.

State Wetlands Data: Wetland Inventory
Source: Department of Fish & Game
Telephone: 916-445-0411

HYDROGEOLOGIC INFORMATION
AQUIFLOW Information SystemR
Source: EDR proprietary database of groundwater flow information EDR has developed the AQUIFLOW Information System (AIS) to provide data on the general direction of groundwater flow at specific points. EDR has reviewed reports submitted to regulatory authorities at select sites and has extracted the date of the report, hydrogeologically determined groundwater flow direction and depth to water table information.

GEOLOGIC INFORMATION
Geologic Age and Rock Stratigraphic Unit
Source: P.G. Schruben, R.E. Arndt and W.J. Bawiec, Geology of the Conterminous U.S. at 1:2,500,000 Scale - A digital representation of the 1974 P.B. King and H.M. Beikman Map, USGS Digital Data Series DDS - 11 (1994).

STATSGO: State Soil Geographic Database
Source: Department of Agriculture, Natural Resources Conservation Service (NRCS) The U.S. Department of Agriculture’s (USDA) Natural Resources Conservation Service (NRCS) leads the national Conservation Soil Survey (NCSS) and is responsible for collecting, storing, maintaining and distributing soil survey information for privately owned lands in the United States. A soil map in a soil survey is a representation of soil patterns in a landscape. Soil maps for STATSGO are compiled by generalizing more detailed (SSURGO) soil survey maps.

SSURGO: Soil Survey Geographic Database
Source: Department of Agriculture, Natural Resources Conservation Service (NRCS) Telephone: 800-672-5559
SSURGO is the most detailed level of mapping done by the Natural Resources Conservation Service, mapping scales generally range from 1:12,000 to 1:63,360. Field mapping methods using national standards are used to construct the soil maps in the Soil Survey Geographic (SSURGO) database. SSURGO digitizing duplicates the original soil survey maps. This level of mapping is designed for use by landowners, townships and county natural resource planning and management.

TC04816690.2r Page PSGR-1

PHYSICAL SETTING SOURCE RECORDS SEARCHED

LOCAL / REGIONAL WATER AGENCY RECORDS

FEDERAL WATER WELLS
PWS: Public Water Systems
Source: EPA/Office of Drinking Water
Telephone: 202-564-3750
Public Water System data from the Federal Reporting Data System. A PWS is any water system which provides water to at least 25 people for at least 60 days annually. PWSs provide water from wells, rivers and other sources.

PWS ENF: Public Water Systems Violation and Enforcement Data Source: EPA/Office of Drinking Water
Telephone: 202-564-3750
Violation and Enforcement data for Public Water Systems from the Safe Drinking Water Information System (SDWIS) after August 1995. Prior to August 1995, the data came from the Federal Reporting Data System (FRDS).

USGS Water Wells: USGS National Water Inventory System (NWIS) This database contains descriptive information on sites where the USGS collects or has collected data on surface water and/or groundwater. The groundwater data includes information on wells, springs, and other sources of groundwater.

STATE RECORDS
Water Well Database
Source: Department of Water Resources
Telephone: 916-651-9648
California Drinking Water Quality Database
Source: Department of Public Health
Telephone: 916-324-2319
The database includes all drinking water compliance and special studies monitoring for the state of California since 1984. It consists of over 3,200,000 individual analyses along with well and water system information.

OTHER STATE DATABASE INFORMATION
California Oil and Gas Well Locations
Source: Department of Conservation
Telephone: 916-323-1779
Oil and Gas well locations in the state.

RADON
State Database: CA Radon
Source: Department of Health Services
Telephone: 916-324-2208
Radon Database for California
Area Radon Information
Source: USGS
Telephone: 703-356-4020
The National Radon Database has been developed by the U.S. Environmental Protection Agency (USEPA) and is a compilation of the EPA/State Residential Radon Survey and the National Residential Radon Survey.

The study covers the years 1986 - 1992. Where necessary data has been supplemented by information collected at private sources such as universities and research institutions.

EPA Radon Zones
Source: EPA
Telephone: 703-356-4020
Sections 307 & 309 of IRAA directed EPA to list and identify areas of U.S. with the potential for elevated indoor radon levels.

TC04816690.2r Page PSGR-2

PHYSICAL SETTING SOURCE RECORDS SEARCHED
OTHER
Airport Landing Facilities: Private and public use landing facilities Source: Federal Aviation Administration, 800-457-6656
Epicenters: World earthquake epicenters, Richter 5 or greater Source: Department of Commerce, National Oceanic and Atmospheric Administration California Earthquake Fault Lines: The fault lines displayed on EDR’s Topographic map are digitized quaternary fault lines, prepared in 1975 by the United State Geological Survey. Additional information (also from 1975) regarding activity at specific fault lines comes from California’s Preliminary Fault Activity Map prepared by the California Division of Mines and Geology.

TC04816690.2r Page PSGR-3

PHYSICAL SETTING SOURCE RECORDS SEARCHED
Prologis – Downey Phase I ESA

APPENDIX G

RESUMES OF PROJECT PERSONNEL

Resume 1 of 4
ASHLEY P. HUTCHENS , REPA , CESCO
Education
BS – Environmental Science (emphasis in Biology), Minor in Chemistry, University of North Carolina, Wilmington, 2000
Professional Licenses
Registered Environmental Property Assessor (REPA) (No. 940424) Certified Environmental and Safety Compliance Officer (CESCO), National Registry of Environmental Professionals (No. 130958)
Specialty Certifications
OSHA 40-Hour Health and Safety Training for Hazardous Waste Workers OSHA 8-Hour Hazardous Waste Supervisor Training
8-Hour Annual Refresher Training for Hazardous Waste Site Activities First-Aid and CPR Training
Leadership Skills to Enhance Client Service
Professional Affiliations
Professional Environmental Marketing Association (PEMA), Member (2011 to Present) Association for Environmental Health of Soils, Member (2015 to Present) National Ground Water Association (NGWA), Member (2012) Professional Experience
Since joining SCS in 2001, Ms. Hutchens has participated in hundreds of site assessment projects related to the investigation and remediation of hazardous chemicals in soils and groundwater.

She has a diverse background in environmental sciences, including technical skills related to the collection of soil samples, knowledge of soil classifications and properties, data collection, and analysis and interpretation. As a Project Manager, her work experience includes all project phases, from the development of cost estimates for various site assessment and cleanup programs, to groundwater monitoring and sampling, the preparation of final reports, interfacing with regulatory agencies, and management of all aspects of projects and various subcontractors.

Selected project activities include:
• Involvement with numerous Phase I Environmental Site Assessments (ESAs) completed in accordance with various lender, American Society for Testing and Materials (ASTM), or government guidelines. Activities consisted of evaluating current and past on-site operations, generating historical property use information, identifying potentially contaminated sites in the surrounding areas, reviewing previous reports and/or files maintained by regulatory agencies, and developing conclusions regarding the presence of Recognized Environmental Conditions (RECs) and recommendations for further investigation.

ASHLEY P. HUTCHENS , REPA , CESCO
Resume 2 of 4
• Involvement with numerous investigations of known or suspected hazardous waste sites to identify and characterize chemicals of concern in soil, soil vapor, and groundwater in accordance with regulatory requirements. Contaminants include a variety of hydrocarbon products, solvents, heavy metals, polychlorinated biphenyls, and pesticides. Activities included preparation of workplans, conduct of soil gas surveys, installation of soil borings and subsequent sampling, and evaluation of applicable remedial alternatives.
• Groundwater well installation and monitoring. Projects involved collection of soil and groundwater samples, installation and development of groundwater wells, evaluation of subsurface contaminants in groundwater in accordance with regulatory requirements or generally accepted guidelines, and evaluation of groundwater remediation alternatives.
• Involvement with numerous soil gas surveys to assess the presence, nature, and extent of volatile organic compounds (VOCs) and/or methane related to contaminated soils, groundwater, and/or landfills. Elements of these projects included assessments of vapor intrusion, protection of structures from subsurface gases, monitoring of indoor air, and health risk assessments (HRAs).
• Numerous projects related to the removal, investigation, and remediation of contamination leaking from underground storage tanks (USTs). In accordance with requirements of the various regulatory agencies throughout Southern California, these UST projects have included soil, soil gas, and groundwater contamination, and such tasks as evaluation of site and regional hydrogeologic conditions; development of workplans and health and safety plans; coordination and completion of tank removals; design of investigative programs; review and selection of potential remedial alternatives; and preparation of summary reports of findings. • Oversight of projects involving installation of landfill gas mitigation systems and monitoring wells, including lithologic logging and design quality assurance (QA) at numerous landfills across Southern California.
• Characterization of hazardous waste materials, including collection of soil and/or liquid samples to profile waste materials, interpretation of laboratory results, and evaluation of disposal/recycling options to minimize costs and liabilities to clients associated with the removal of wastes.
• Planning, coordination, and supervision of remedial actions that included excavation, transport, and disposal of contaminated soils. Work has included preparation of Remedial Action Plans (RAPs), direction of confirmatory sampling, and interfacing with regulatory agencies.

Project Management
Assessment and Remediation of Numerous Former Dry Cleaning Facilities, Los Angeles and Orange Counties, CA. Investigations were completed at numerous active and former dry ASHLEY P. HUTCHENS , REPA , CESCO
Resume 3 of 4
cleaning facilities to assess the potential for releases of solvents. As Project Manager, Ms.

Hutchens conducted various investigations that included soil vapor assessments, collection of bulk soil samples, groundwater well installation and monitoring, indoor air sampling, and evaluation of indoor air intrusion risks. Additional evaluations were completed to define the extent of the plume and obtain information to evaluate remedial alternatives. Implemented remedial measures included excavation, soil vapor extraction (SVE), monitored natural attenuation (MNA), in situ groundwater remediation, and risk management. One project included installation of an interim vapor intrusion control system (IVICS), which was installed to introduce sub-slab depressurization to reduce indoor air intrusion risks from a former dry cleaner release. The IVICS was installed on an immediate basis at the request of the client until further investigation could be conducted for design of a full-scale remediation system. Ms. Hutchens coordinated and permitted investigation and remediation efforts through the various regulatory oversight agencies.

Investigation and Remediation for Industrial Facility Redevelopment, Commerce, CA. SCS conducted a series of environmental assessments, investigations, and remedial activities that provided sufficient information to identify the environmental issues, and business risks to facilitate the client’s successful purchase of property for redevelopment to a commercial warehouse and office. A number of RECs, including former and an existing unpermitted underground fuel storage tanks, were identified. As Project Manager, Ms. Hutchens managed activities conducted concurrently with the redevelopment of the property that included shallow and deep soil along with soil vapor investigations; installation of groundwater monitoring wells and subsequent groundwater sampling; permitting and removal of an existing UST; subsequent remedial excavation under the oversight of the Los Angeles County Fire Department (LACFD) to obtain closure; shallow excavation of the former UST area; installation of SVE and monitoring wells conducted concurrently with redevelopment of the property; SVE under Regional Water Quality Control Board (RWQCB) oversight; and requesting and receiving closure under the Low-Threat UST Case Closure Policy (LTCP) through the State Water Resources Control Board (SWRCB).

Retired Housing Foundation, Site Investigation and Remedial Activities, Los Angeles, CA. As follow-up to a Phase I ESA performed on the property, soil and soil vapor investigations were completed to assess the potential for releases of heavy metals and VOCs based on historical operations at the property. As Project Manager, Ms. Hutchens managed investigation activities that indicated elevated tetrachloroethylene (PCE) and lead in the subsurface exceeding regulatory guidelines. Remediation of the lead-impacted soils was conducted under LACFD oversight. An evaluation of the health risk from PCE in the subsurface was conducted and submitted to the LACFD. Site closure with respect to PCE and lead in the subsurface was approved by LACFD, facilitating the client’s submittal for funding and the subsequent construction of the retirement housing development.

Due Diligence Investigations of Manufacturing Facility, Torrance, CA. SCS conducted a series of assessments, including a Phase I ESA, various Phase II investigations, and remedial activities that provided sufficient information to identify the environmental issues and business risks and to facilitate the client’s successful sale of the property. A number of RECs, including former and existing underground fuel storage tanks, a machine shop, wastewater treatment sumps and a clarifier, chemical storage, and chlorinated solvent degreasing operations, were identified. As ASHLEY P. HUTCHENS , REPA , CESCO
Resume 4 of 4
Project Manager, Ms. Hutchens managed activities that included shallow and deep soil and soil vapor investigations, groundwater sampling, a geophysical survey and excavations to find an existing diesel UST previously closed in place, removal of the UST, remedial excavations under Torrance Fire Department oversight to obtain UST closure, a workplan submitted to the Los Angeles RWQCB, installation of an SVE system and monitoring wells, a long-term SVE pilot test, an SVE Pilot Test Report, and recommendations for further SVE.

City of El Monte, Environmental Investigations, Methane Monitoring, and Remedial Action, El Monte, CA. SCS conducted several phases of work for the redevelopment of property in El Monte, a portion of which overlies a former burn dump. SCS worked with the Department of Toxic Substances Control (DTSC) to obtain and implement an approved Remedial Action Workplan (RAW), which required a public comment period and California Environmental Quality Act (CEQA) review to allow redevelopment of the property for residential use. As Project Manager, Ms. Hutchens applied for a permit to excavate the former burn dump with the South Coast Air Quality Management District (SCAQMD) on behalf of the owner and developer of the site. With the permit in place, SCS provided oversight of excavation activities as development activities commenced. In addition, methane monitoring was conducted to monitor for the presence of methane as a result of the former dumping activities. Ms. Hutchens prepared a Remedial Action Completion Report (RACR) and worked with DTSC to get closure for portions of the property that will undergo development in the near future. Ms. Hutchens continues to work with the Lead Enforcement Agency (LEA) and the California Department of Resources Recycling and Recovery (CalRecycle) to provide long-term probe monitoring for the network, to observe the former dump area after the development is complete.

Environmental Property Evaluation, Whitewright, TX. As Project Manager, Ms. Hutchens conducted an evaluation of the blast pressure that may have resulted from an accidental explosion of ammonium nitrate stored at a facility near a proposed multi-family housing complex. The evaluation was conducted to determine if the proposed housing site would be affected by such an explosion. The evaluation included review of Housing and Urban Development (HUD) guidelines to meet separation distance standards and other state/local multifamily rules, ammonium nitrate explosion and trinitrotoluene (TNT) equivalent evaluation, and calculation of the blast zone radius.

Health and Safety
Ms. Hutchens has participated in a certified health and safety program in compliance with OSHA Standard 29 CFR 1910.120. She is knowledgeable in incident response operations, team functions, personnel safety, and field equipment. She is able to recognize and evaluate potential chemical and physical hazards associate risks in field operations; discuss and use Personal Protective Equipment (PPE), such as respiratory protection and protective clothing; use and interpret direct-reading instruments; and examine and establish Standard Operating Safety Guidelines (SOSG) to ensure safe and effective response operations.

Resume 1 of 8
KEVIN W. GREEN, PG
Education
BS – Marine Biology, California State University, Long Beach, 1978 Professional Licenses
Professional Geologist – California, 1994 (No. 5906)
Professional Geologist – Wyoming, 2009 (No. PG-3702)
Professional Affiliations
National Ground Water Association
Groundwater Resources Association of California
Association for Environmental Health and Sciences
Professional Experience
Mr. Green has a background in geology and paleontology. Since joining SCS in 1987, he has participated in numerous projects related to the investigation and remediation of hazardous chemicals in soils and groundwater. As a Vice President and Project Director, he currently serves as the Environmental Services Leader for the Long Beach and Las Vegas offices.

Selected project activities include:
• Mr. Green has been Project Manager for more than a thousand Phase I Environmental Site Assessments (ESAs). These projects were completed in accordance with various lenders, the American Society for Testing and Materials (ASTM), or government guidelines, and consisted of evaluating current on-site operations, generating historical property use information, identifying potentially contaminated sites in the surrounding areas, reviewing previous reports and/or files maintained by regulatory agencies, and developing conclusions and recommendations regarding the presence of Recognized Environmental Conditions and further investigation. Project sites have varied from private single-use parcels to hundreds of properties involving multiple tenants associated with state and local government right-of-way improvements. • Mr. Green has conducted hundreds of investigations of known or suspected hazardous waste sites to identify and characterize chemicals of concern in soil, soil vapor, and groundwater in accordance with regulatory requirements. Contaminants include a variety of hydrocarbon products, solvents, heavy metals, polychlorinated biphenyls (PCBs), and pesticides. Regulatory oversight agencies include the US Environmental Protection Agency (EPA), Department of Toxic Substances Control (DTSC), and various Regional Water Quality Control Boards (RWQCBs), County Health or Fire Departments, and city Certified Unified Program Agencies (CUPAs). • Mr. Green has been Project Manager for numerous soil gas surveys utilized to assess the presence, nature, and extent of volatile organic compounds (VOCs) and/or methane related to contaminated soils, groundwater, and/or landfills. Elements of KEVIN W. GREEN, PG
Resume 2 of 8
these projects have included assessments of vapor intrusion, protection of structures from subsurface gases, monitoring of indoor air, and health risk assessments (HRAs). • Mr. Green has managed numerous projects related to the removal, investigation, and remediation of contamination from leaking underground storage tanks (LUSTs). In accordance with requirements of the various regulatory agencies throughout Southern California, these LUST projects have included soil, soil gas, and groundwater contamination, and tasks such as evaluation of site and regional hydrogeologic conditions; development work plans and health and safety (H&S) plans; coordination and execution of tank removals; design of the investigative programs; review and selection of potential remedial alternatives; preparation of summary reports of findings; support of legal counsel in cost recovery actions; and support of client in cost recovery actions with the California Underground Storage Tank (UST) Cleanup Fund.
• Mr. Green has been the Project Manager for numerous remediation projects involving various hydrocarbon products, pesticides, chlorinated solvents, and/or heavy metals.

Remediation projects included the excavation and disposal of soils; on- and off-site treatment of soils; recovery and treatment/disposal of free product and groundwater; and the design, installation, and operation of vapor extraction systems for soil and groundwater contaminated with VOCs.
• Mr. Green has evaluated environmental conditions at sanitary landfills. As Task Manager, he managed the installation and sampling of groundwater monitoring wells at and adjacent to existing landfills to determine the presence of leachate. This work was done in accordance with state regulations and local ordinances. • Mr. Green was Project Manager for numerous lead-based paint (LBP) surveys and abatement projects for single- and multifamily residential developments, and commercial and public buildings. These projects consist of determining paint and/or dust sampling methodologies; interpretation of testing results; evaluation and recommendations for appropriate LBP hazards abatement; development of LBP abatement specifications; coordination and selection of licensed LBP abatement subcontractors; collection and analysis of abatement confirmation samples; characterization of waste materials; and preparation of summary reports documenting LBP surveys and the appropriate removal and disposal of LBP-related hazards. • As a committee member, Mr. Green developed the initial ASTM standard guide (E2600) for vapor encroachment screening on property involved in real estate transactions. He has a decade of experience in evaluating the potential for vapor encroachment and vapor intrusion, along with the methods and protocols for investigation and/or mitigation of buildings affected by known or suspected contamination by VOCs.
• Mr. Green provides expert testimony and research support for litigation related to ESAs, and the investigation and remediation of hazardous waste sites.

KEVIN W. GREEN, PG
Resume 3 of 8
His project experience is summarized below.

Vapor Extraction Assessment and Remediation of Former Industrial Dry Cleaning Facility. As Project Manager, Mr. Green’s tasks included initial indoor air assessment for Proposition 65 compliance; coordination of equipment, subcontractors, and personnel for the installation of vapor extraction and monitoring wells, header lines, and vapor extraction system (VES), including acid “scrubber” for treated vapors, treatment pad and enclosure, electrical power, natural gas, water supply and wastewater discharge; city, county, and Air Quality Management District (AQMD) permits; operation and maintenance (O&M) of VES; regulatory reporting; and decommissioning of VES upon regulatory closure.

Community Redevelopment Agency of the City of Los Angeles (CRA/LA), General Environmental Consulting Services, Los Angeles, CA. As Project Director with almost 200 work order directives for services over an approximately 20-year period, Mr. Green provided the initial site assessments, asbestos-containing material (ACM) surveys, LBP surveys, soil gas surveys, soils investigations, groundwater investigations, remedial and abatement activities for soils, asbestos, and LBP, second-party reviews of reports and work completed by other environmental consultants, UST removals, groundwater well abandonment, Brownfields consulting, and an environmental audit of hazardous materials handling practices of the client’s operations. The projects were completed on vacant, former oil field, residential, commercial, industrial, and manufacturing properties ranging in size from a single lot to a 29-block mixed-use area. In addition to ACMs and LBP, the identified constituents of concern included a variety of petroleum hydrocarbon (TPH) products, chlorinated solvents, heavy metals, PCBs, pesticides, and subsurface combustible gases such as methane and VOCs.

Brownfields Redevelopment Site, Los Angeles, CA. As Project Director, Mr. Green completed several phases of environmental services to facilitate the mixed-use redevelopment of property for a parking garage, childcare center, and affordable housing. Historical machine shop operations resulted in a release of tetrachloroethylene (PCE) to soils. Although some cleanup was conducted in the early 1990s, residual PCE contamination remained. In accordance with current standards and with the proposed goal of affordable housing and childcare center, SCS re- investigated the site under the oversight of the Los Angeles RWQCB. Services provided for this project included investigations of soil and soil gas, HRA and selection of remedial and mitigation options, design of vapor barrier to protect the building from chlorinated solvents, coordination and oversight of remedial excavation, oversight and certification for installation of a sub-building vapor barrier, post-construction monitoring of indoor, background, and sub-slab air to confirm that remediation and mitigation measures have met regulatory goals, and coordination of a No Further Action (NFA) letter from the regulatory authority.

Due Diligence Investigations of Manufacturing Facility, Torrance, CA. As Project Director, Mr.

Green conducted a series of environmental assessments, investigations, and remedial activities that provided sufficient information to identify environmental issues and business risks and to facilitate the client’s successful sale of property. A number of recognized environmental conditions, including former and existing USTs, a machine shop, wastewater treatment sumps and clarifier, paint shop, chemical storage, and chlorinated solvent degreasing operations were identified. Project activities included shallow and deep soil and soil vapor extraction (SVE) investigations, followed by groundwater sampling; geophysical survey and excavations to find KEVIN W. GREEN, PG
Resume 4 of 8
an existing diesel UST previously closed in-place; removal of the UST; remedial excavations under Torrance Fire Department oversight to obtain closure; a long-term SVE pilot test, including a work plan submitted to the Los Angeles RWQCB; installation of SVE and monitoring wells; and development of an SVE Pilot Test Report, and recommendations for further SVE.

Investigation, Abatement, and Subsequent Demolition, Resource, Conservation and Recovery Act (RCRA), CA. Lead-containing dust from a shooting range was found to have contaminated building materials and soils. As Project Manager, Mr. Green was involved the selection of remedial methods and contractors, monitoring of workers to assess exposure to lead-containing dust, monitoring of dust emissions during demolition to confirm compliance, confirmation sampling and analyses, characterization of wastes for disposal, and submittal of a summary report documenting the appropriate remediation and disposal of lead-containing wastes. Efforts were as part of the RCRA for facility closure under the oversight of the California DTSC.

Investigation and Remediation, CA. Chemicals of concern at the former wood treating facility included pentachlorophenol, creosote, diesel fuel, methylene chloride, zinc, copper, and arsenic.

As Project Director, Mr. Green managed the Remedial Investigation/Feasibility Study (RI/FS) report for vadose zone soil, including an HRA; Remedial Action Plan (RAP) for impacted soil, which recommended capping as the most feasible remedial alternative; a cone penetrometer (CPT) study aimed at further defining site stratigraphy, evaluating for the presence of nonaqueous phase liquids, and mapping the areal distribution of chemicals of concern; quarterly groundwater monitoring from 16 wells; Storm Water Pollution Prevention Plan (SWPPP) and monitoring; and assistance to client in development and/or sale of the property. The work was done under the oversight of the California DTSC.

Well Investigation Program Compliance. As Project Manager, Mr. Green conducted a well investigation provided to the USEPA to identify Potentially Responsible Parties (PRPs) for the San Fernando Valley Superfund site. On-site operations included 14 USTs; numerous clarifiers, sumps, and drain lines; plating, machining, and painting shops; a jet engine test facility; and solvent, alkaline, and steam cleaning facilities. Approximately 70 exploratory soil borings were drilled and analyzed for chlorinated solvents, heavy metals, cyanide, and various hydrocarbon products, such as gasoline, machining and waste oils, Stoddard solvent, and jet fuel. A soil gas survey of the facility was also conducted to screen for potential contamination by VOCs, including the installation of multi-depth, nested soil vapor monitoring wells. Fate and transport modeling of chlorinated solvents was used to assess the potential for impacts to groundwater.

The work was done under RWQCB oversight at a jet engine repair, maintenance, and testing facility. The RWQCB issued an NFA letter for the investigation and remediation of chlorinated solvents at the site. The project also included design, permitting, construction, and O&M of a hot air-assisted SVE system to remediate Jet A-impacted soils. After 1 year of operation, remediation was sufficient to obtain closure with no further requirements from the RWQCB.

Furthermore, as a part of the decommissioning and demolition of the facility, a comprehensive survey for ACMs in nine buildings was conducted. SCS prepared plans and specifications for the abatement of ACMs, assisted the client in selection of an abatement contractor, conducted daily oversight of abatement activities, including air monitoring, and prepared a final report documenting the appropriate removal and disposal of ACMs.

KEVIN W. GREEN, PG
Resume 5 of 8
Historical Industrial Site Redevelopment and Closure. Prior to acquisition of this property, Mr.

Green, as Project Director, conducted a due diligence assessment and several phases of investigation to identify recognized environmental conditions, characterize the nature and extent of contamination, evaluate costs and environmental liabilities, and facilitate the client’s successful purchase of the property. Following the acquisition, and as a part of site redevelopment and thereafter, SCS provided additional site characterization and remediation services under regulatory oversight and with closure. Project activities, conducted concurrently with property redevelopment, included:
• Shallow and deep soil and soil vapor investigations for due diligence purposes. • Oil well abandonment under California Division of Oil, Gas and Geothermal Resources (DOGGR) oversight.
• Permitting and removal of an existing UST and remedial excavation under Los Angeles County Department of Public Works (LACDPW) oversight. • Under RWQCB oversight, shallow soil excavation of a former UST area, installation and operation of a separate SVE system for deeper soil contamination, and installation and monitoring of groundwater wells.

SCS met with the RWQCB on several occasions to make a case for closure under the State Water Quality Control Board’s (SWQCB’s) Low-Threat UST Case Closure Policy. Upon completion of a closure investigation in October 2013, and a subsequent meeting to defend the case for closure, the RWQCB concurred with SCS’s conclusions and approved the closure process under the Low-Threat Policy. Following SVE and well abandonment activities, the RWQCB issued an NFA letter for the property in July 2014.

Mr. Green has participated in a certified health and safety program in compliance with Occupational Safety and Health Administration (OSHA) Standard 29 CFR 1910.120. He provided his expertise in the incident response operations, team functions, personnel safety, and field equipment. He was able to recognize and evaluate potential chemical and physical hazards and associated risks in field operations; discuss and use personnel protective equipment such as respiratory protection and protective clothing; use and interpret direct-reading instruments; and examine and establish Standard Operating Safety Guidelines to ensure safe and effective response operations.

Mr. Green has been involved in numerous SCS projects related to hazardous waste characterization and management. He has experience in ESA studies, UST investigations and their associated remediation programs, landfill studies, and geologic and hydrogeologic site characterization studies. His work experience includes all project phases from development of cost estimates for various site assessment and cleanup programs, to groundwater monitoring and sampling, to preparation of final reports and interfacing with regulatory agencies.

KEVIN W. GREEN, PG
Resume 6 of 8
Litigation Support/Expert Testimony
Mr. Green has provided litigation support and expert testimony to legal counsel, including conducting research, and preparing reports and other supporting documents, in the following environmental cases:
• In August 2013, Mr. Green provided testimony in federal court on behalf of the plaintiff in City of Banning v. Dureau et al., regarding the contractor’s emergency response to a waste oil spill that entered the storm drain system. Testimony related to investigative and remedial actions and the applicability of, and compliance with, the National Contingency Plan (NCP). The case was won by the City of Banning, California.
• In October 2012, Mr. Green was retained as an expert witness by the defendant in Clipper Yacht Company, LLC v. Anderson’s Boat Yard, Inc., to review documents, consult with legal counsel, and provide expert opinions at deposition and trial regarding contamination at a boat yard and associated marina in Sausalito, California.

Specific topics of interest include the adequacy of previous investigations and remediation efforts, the sources of contamination (particularly copper), cleanup levels, and likelihood and estimated costs of additional remediation. This case was settled prior to trial.
• In August 2011, as part of the new property owner’s litigation against the former tenant (Alfaville, LLC v. L.A. Signal, Inc.), Mr. Green provided testimony as a percipient witness, primarily as to the source and timing of a prior PCE release. In a Phase I ESA prepared by SCS in 2008, PCE solvent use by the departing property tenant was identified. Several phases of subsequent site investigation confirmed a release of PCE to soil and soil vapor with likely impacts to groundwater.

Groundwater monitoring is ongoing under Los Angeles RWQCB oversight.

Remediation by soil vapor extraction may be conducted. This case was settled. • In November 2008, Mr. Green provided an expert report and court testimony on behalf of the plaintiff in Malcolm Carter Enterprise v. Microsemi Real Estate, Inc. At issue was the evaluation of data for a Phase I ESA, identification of Recognized Environmental Concerns (RECs), regional and site-specific groundwater contamination by chlorinated solvents, selection of an appropriate regulatory agency for remedial oversight, and applicability of the NFA letter. This case was won by the plaintiff.
• In 2010, Mr. Green was retained by the defendant in City of Riverside v. Johnson Revocable Trust, et al., to review documents, consult with legal counsel, and provide expert reports and deposition and expert testimony regarding an eminent domain case in Riverside, California. Specific topics of interest included the adequacy of previous investigation, the source or sources of a PCE release, and the likelihood and estimated costs of remediation. This case was settled prior to trial.

KEVIN W. GREEN, PG
Resume 7 of 8
• In 2009, Mr. Green conducted a review of the scope of work and fees charged by another environmental consultant conducting expert witness work on a development project in Santa Clarita. A declaration was provided to the Plaintiff’s counsel regarding typical consultant fees, and the reasonableness of the time and expenses charged in relation to the final work product.
• In 2006, Mr. Green reviewed documents, consulted with legal counsel, and provided deposition and expert testimony regarding the source and timing of a methyl tertiary butyl ether (MTBE) release at a service station site in Strathmore, California. This case was settled prior to trial.
• In 2003, Mr. Green provided litigation support regarding the scope and limitations of a Phase I ESA as it pertains to a service station site in San Bernardino, California. • In 1998, Mr. Green provided expert consulting services related to the use, history, and migration of hexavalent chromium and perchloroethene in soil and groundwater at a former plating site and adjacent Los Angeles Unified School District (LAUSD) school property, and proper allocation of responsibility regarding those issues. • In 1994, Mr. Green provided a client’s in-house and outside legal counsel with technical support on a case involving cost recovery/allocation and potential involvement in the Burbank Operable Unit of the San Fernando Valley Superfund site.

This project included assessment of the nature, extent, fate, and transport of potential contaminants (chlorinated solvents, fuels, and/or heavy metals), previous and proposed site investigations, possible remedial alternatives and costs, and environmental investigations and/or remediation on properties in the surrounding area. • Mr. Green has also provided outside legal counsel with technical support for due diligence assessment at a property in Irvine, California. The client’s site was located adjacent to a service station that had groundwater impacted with gasoline-related constituents, including MTBE. His work involved obtaining regulatory records, review, and written summary regarding regulatory requirements and anticipated actions, health risks, and necessity of additional site assessment and/or investigation work on the client’s property.
• He has also assisted a client and the client’s legal counsel with review of information and response to the Los Angeles RWQCB’s request for a work plan for investigation of suspected hexavalent chromium impacts to soil and groundwater at the client’s former operation, located adjacent to the Burbank Airport and within the Burbank Operable Unit of the San Fernando Valley Superfund Site. The work plan and further investigation were not subsequently required.
• In 1991, Mr. Green provided expert testimony in Azusa Redevelopment Agency v.

Exxon, a case involving investigation and remediation of gasoline-contaminated soil at a former Exxon station.

KEVIN W. GREEN, PG
Resume 8 of 8
• 1991, Mr. Green provided expert testimony for Art Movers, Inc., in a case involving previous site investigations, proposed remedial activities, and potential risks to groundwater resources from perchloroethene-contaminated soils.

Publications and Presentations
Green, K. W. Vapor Encroachment & Intrusion: What are the Real (Estate) Risks? Journal of Property Management. March-April 2014.

Marsh, J. R., and K. W. Green. All Appropriate Inquiry - The New Phase I Standard. California Real Estate Journal. May 8, 2006.

Green, K. W., T. Dong, and D. R. Ness. Industrial Drycleaner Woes, Vernon, California.

Proceedings of the Groundwater Resources Association. November 10, 2004.

Marsh, J. R., K. W. Green, and T. Dong. Standardizing Environmental Assessments: A Practical Perspective. Journal of Environmental Engineering. Vol. 122, No. 3. March 1996.

Marsh, J. R., K. W. Green, and T. Dong. Phase I Assessments and Due Diligence: One and the Same? Environmental Engineering Forum, American Society of Civil Engineers, Environmental Engineering Division. Journal of Environmental Engineering. Vol. 120, No. 6, November/ December 1994.

Green, K. W., and B. Garbaccio. Understanding and Interpreting a Site Investigation Report.

California Redevelopment Journal. October 1994
Marsh, J. R., and K. W. Green. What Your Phase I Assessment Dollars Buy. California Redevelopment Association Journal. July 1994.

Appendix G
Phase II Environmental Site
Assessment

P H A S E I I I N V E S T I G A T I O N R E P O R T

D O W N E Y I N D U S T R I A L C E N T E R
9 3 0 0 , 9 3 5 0 , A N D 9 4 0 0 H A L L R O A D
9 3 0 1 , 9 3 3 3 , A N D 9 3 9 9 S T E W A R T & G R A Y R O A D D O W N E Y , C A L I F O R N I A 9 0 2 4 1
( A P N s 6 2 8 4 -019 - 013 t h r o u g h -017)
Prepared for:

P r o l o g i s , I n c .

Pier 1, Bay 1
San Francisco, California 94111
(415) 733-9431
Prepared by:

S C S E N G I N E E R S
3900 Kilroy Airport Way, Suite 100
Long Beach, California 90806
(562) 426-9544
April 13, 2017
File No. 01216368.00 Tasks 3/4
P r o l o g i s – D o w n e y I n d u s t r i a l C e n t e r P h a s e I I I n v e s t i g a t i o n P r o l o g i s – D o w n e y I n d u s t r i a l C e n t e r P h a s e I I I n v e s t i g a t i o n This Phase II Investigation Report dated April 13, 2017 for the Downey Industrial Center located at 9300, 9350, and 9400 Hall Road and 9301, 9333, and 9399 Stewart & Gray Road, Downey, California, was prepared and reviewed by the following:

Christopher F. Romanowski
Staff Scientist

S C S E N G I N E E R S
Ashley P. Hutchens, R.E.P.A.

Project Manager

S C S E N G I N E E R S
Kevin W. Green, PG
Project Director

S C S E N G I N E E R S
Kenneth H. Lister, Ph.D., C.E.G., C.H.G.

Senior Technical Advisor

S C S E N G I N E E R S
i
T a b l e o f C o n t e n t s
Section Page
DISCLAIMER ....................................................................................................................................................... iii 1 INTRODUCTION ..................................................................................................................................... 1 2 GENERAL BACKGROUND .................................................................................................................... 1 3 GEOLOGIC AND HYDROGEOLOGIC CONDITIONS ..................................................................... 2 Physiogeographic Setting ............................................................................................................... 2 Geology and Soils ........................................................................................................................... 3 Hydrogeology .................................................................................................................................. 3 4 SITE INVESTIGATION AND ANALYTICAL RESULTS .......................................................................... 3 Soil Vapor Sampling ....................................................................................................................... 3 Soil Vapor Analytical Results .................................................................................................... 4 Soil Sampling and Analysis ............................................................................................................ 5 Soil Analytical Results ................................................................................................................. 6 Groundwater Sampling and Analysis .......................................................................................... 7 Groundwater Analytical Results ............................................................................................... 7 Disposal of Investigation Derived Wastes ................................................................................... 7 5 DISCUSSION OF ANALYTICAL RESULTS AND REGULATORY LIMITS ........................................... 8 VOCs in Soil Vapor ......................................................................................................................... 8 VOCs and OCPs in Soil ................................................................................................................... 9 TPH in Soil .......................................................................................................................................... 9 Metals in Soil ...................................................................................................................................10 VOCs in Groundwater ..................................................................................................................10 6 CONCLUSIONS AND RECOMMENDATIONS ................................................................................ 11 7 REFERENCES ......................................................................................................................................... 13 P r o l o g i s – D o w n e y I n d u s t r i a l C e n t e r P h a s e I I I n v e s t i g a t i o n P r o l o g i s – D o w n e y I n d u s t r i a l C e n t e r P h a s e I I I n v e s t i g a t i o n

L i s t o f F i g u r e s , T a b l e s & A p p e n d i c e s

Figures

1 Site Location Map
2 Site Map Showing Sample Locations
3 Site Map Showing Isoconcentration Contours of Trichloroethene (TCE) at 5 feet bgs in Soil Vapor
4 Site Map Showing Isoconcentration Contours of TCE at 15 feet bgs in Soil Vapor 5 Site Map Showing Isoconcentration Contours of TCE at 30 feet bgs in Soil Vapor 6 Site Map Showing Isoconcentration Contours of Tetrachloroethene (PCE) at 5 feet bgs in Soil Vapor
7 Site Map Showing Isoconcentration Contours of PCE at 15 feet bgs in Soil Vapor 8 Site Map Showing Isoconcentration Contours of PCE at 30 feet bgs in Soil Vapor 9 Site Map Showing Groundwater Sample Locations and VOC Analytical Results

Tables

1 Summary of Analytical Results for Soil Vapor Survey
2 Summary of Analytical Results for Soil Samples – TPH, VOCs, and OCPs 3 Summary of Analytical Results for Soil Samples – Metals and Hexavalent Chromium 4 Summary of Analytical Results for Groundwater Samples – VOCs

Appendices

A H&P Laboratory Reports and Chain-of-Custody Documentation B Soil Boring Logs
C Chemtek Laboratory Reports and Chain-of-Custody Documentation D County of Los Angeles Public Health Well Permit
P r o l o g i s – D o w n e y I n d u s t r i a l C e n t e r P h a s e I I I n v e s t i g a t i o n

DISCLAIMER
This report has been prepared specifically for Prologis, Inc, with specific application to investigation of soil, soil vapor, and groundwater for the Downey Industrial Center site located at 9300, 9350, and 9400 Hall Road and 9301, 9333, and 9399 Stewart & Gray Road, Downey, California. The report has been prepared in accordance with the care and skill generally exercised by reputable professionals, under similar circumstances, in this or similar localities. No other warranty, express or implied, is made as to the professional opinions presented herein. No other party, known or unknown to SCS, is intended as a beneficiary of this work product, its content or information embedded therein. Third parties use this report at their own risk.

Changes in site conditions may occur due to variation in rainfall, temperature, water usage, or other factors. Additional information that was not available to the consultant at the time of this investigation or changes that may occur on the site or in the surrounding area may result in modification to the site that would impact the summary and recommendations presented herein.

This report is not a legal opinion.

P r o l o g i s – D o w n e y I n d u s t r i a l C e n t e r P h a s e I I I n v e s t i g a t i o n

1 1 INTRODUCTION
SCS Engineers (SCS) was retained by Prologis, Inc to conduct a Phase II Investigation consisting of soil, soil vapor, and groundwater sampling at the Downey Industrial Center located at 9300, 9350, and 9400 Hall Road and 9301, 9333, and 9399 Stewart & Gray Road, Downey, California (the “Property”). Investigation activities were conducted in accordance with SCS’s proposals dated February 9, 2017 (Proposal No. 010092217R3) and March 6, 2017 (Proposal No. 01216217). A location map for the Property is presented as Figure 1.

2 GENERAL BACKGROUND
SCS prepared a Phase I Environmental Site Assessment (ESA) for the Property dated January 31, 2017. The Property is comprised of approximately 29 acres and has a complex aerospace and manufacturing history. The Property is currently developed with four primary structures (two large and 2 small) occupied by five tenants, associated parking areas, storage yards, and canopy areas. The Phase I ESA identified the following Recognized Environmental Conditions (RECs):
 Numerous patch areas and steel plated vault/trenches were observed in the larger structures. A well was observed at the south end of Building 1A. No information could be provided to SCS regarding the well. The subsurface features observed within the structures represent a REC.
 Numerous tenants have occupied the Property including various manufacturing facilities for carpets, furniture, cabinetry, printing, logistics, pulp and paper recycling, etc.

Chemical use by these historical tenants is unknown. The presence of various historic manufacturing operations with unknown chemical use on the Property constitutes a REC.  Available records on the SCAQMD’s Facility Information Detail (FIND) database indicate the use of degreasers containing chlorinated solvents on the parcel directly adjacent to the west (9236 Hall Road) by two former occupants, Aerojet and General Dynamics. One of these former neighbors, Aerojet, also occupied (prior to 1971) the portion of the Property located at 9300 Hall Road and thus may have conducted operations on the Property. Permits for the adjacent site at 9236 Hall Road indicated that both Aerojet and General Dynamics operated a 1,1,1-trichloroethane degreaser, a perchloroethylene degreaser, a Freon degreaser, scrubbers, wastewater treating equipment, a spray booth (paint and solvent), and other equipment related to aerospace manufacturing activities. The use of chlorinated solvents adjacent to, and potentially on the Property, constitutes a REC.
 Los Angeles County Department of Public Works (LACDPW) records indicated that Aerojet occupied the adjacent parcel to the west from at least 1971 to 2003, and leased the building at 9300 Hall Road for use, including aerospace machining operations, for a period of time up to 1971. A number of subsurface features were used during this time, including a 10,000 gallon diesel underground storage tank (UST; unknown installation date) and various concrete sumps and/or clarifiers. The UST was removed and some of the sump/clarifiers were abandoned in place in 1986. A no further action letter was issued by the LACDPW on February 28, 1986 for certain concrete oil, grease, and water P r o l o g i s – D o w n e y I n d u s t r i a l C e n t e r P h a s e I I I n v e s t i g a t i o n

2 “tanks;” the 10,000-gallon UST was not included in this closure letter. Other subsurface features (drain lines, pit, sump, clarifier, etc.) were listed in the LACDPW records and it is anticipated these remain in place. Samples collected in 1985, from the contents of these features (both those removed and those that are anticipated to remain) revealed elevated concentrations of metals, total petroleum hydrocarbons (TPH), and oil and grease (analysis for volatile organic compounds [VOCs] was not conducted). The highest metals concentrations were detected in a sample collected from a “dirt pit.” The disposition of the clarifiers, pits, sumps and other facilities contents from which samples were collected is unknown. The presence of these subsurface features, some of which currently appear to remain and some of which were abandoned in place, along with the former aerospace machining operations, are considered a REC.  Two USTs (a 1,000 gallon gasoline and a 15,000 gallon diesel) were formerly located at the Western Pacific Paper and Pulp facility at 9350 Hall Road. A release of “up to 18,200” (presumably milligrams per kilogram [mg/kg], however the units were not reported) of TPH was listed on an unauthorized release report dated January 1995, that referred the case from the LACDPW to the Los Angeles Regional Water Quality Control Board (LARWQCB). Although the LARWQCB issued a no further action letter in 1996, there is no record that any remediation was conducted in this area, therefore the presence of the former USTs and associated release constitute a REC.  In 1995, Heger Reality disposed of tank bottom wastes (based on the date, this may be associated with the USTs removed at 9350 Hall Road) and halogenated solvents from the address of 9400 Hall Road. The disposal of tank bottom wastes (indicating the presence of former UST[s]) and halogenated solvents is considered a REC.

In addition, the following business environmental risk (BER) was identified:
 During the site inspection, it was brought to SCS’ attention that an underground storage area or bunker may exist at the northwest corner of the Property, in the area of the Duray (9301 Stewart and Gray Road) and Omniteam (9300 Hall Road) facilities. Comments by tenants at these businesses suggested the bunker was used during World War II and that it housed chemicals. No evidence regarding the presence of this feature was observed during the site inspection, and its current or past existence has not been confirmed.

As previously mentioned, the current investigation consisted of soil, soil vapor, and groundwater sampling at locations of historical subsurface features, in areas where potential degreasers were used, and in other locations across the Property to provide site coverage. This report describes results of an initial investigation conducted in February 2017 and additional activities conducted in March 2017 to further define the initial findings.
3 GEOLOGIC AND HYDROGEOLOGIC CONDIT IONS

P H Y S I O G E O G R A P H I C S E T T I N G
The Property is located in the Downey Plain of the central Los Angeles basin. Site elevation ranges from approximately 107 to 112 feet above mean sea level. Site topography is generally P r o l o g i s – D o w n e y I n d u s t r i a l C e n t e r P h a s e I I I n v e s t i g a t i o n

3 flat with a slight regional downward slope to the south. The San Gabriel River is located approximately 0.5 miles to the southeast of the Property.

G E O L O G Y A N D S O I L S
Based on the regional geology as outlined in the California Department of Water Resource Bulletin 104 (Planned Utilization of the Groundwater Basins of Los Angeles County, June 1961,) surface sediments in the area consist of Quaternary alluvial deposits of unconsolidated gravel, sand, silt, and clay. Data from on-site soil borings indicates a predominantly silty section extending to a depth of approximately 20 to 40 feet bgs with a predominantly sandy section below this to at least 80 feet bgs.

H Y D R O G E O L O G Y
Based on the results of groundwater monitoring at the former Astro Pak facility located approximately 0.5 miles west of the Property (GeoTracker, Site #SL2044E1590), the depth to groundwater in the area is generally 75 to 80 feet below ground surface (bgs). The results of this Phase II investigation identified groundwater at 80 to 85 feet bgs. The regional direction of groundwater flow is generally southerly.
4 SITE INVESTIGATION AND ANALYTICAL RESULTS
The Phase II Investigation consisted of groundwater, soil, and soil vapor sampling as described below. Investigation activities were conducted on February 13, 14, 15, and 17, and March 13, 14, 16, and 17, 2017. As required by law, SCS pre-marked the proposed sampling points and notified Underground Service Alert (USA) (DigAlert Ticket No. A70320477, A70660834, and A70660836). Prior to sampling, SCS contracted with Goldak, Inc. (Goldak), of Sylmar, California to clear the proposed boring locations prior to initiating drilling activities to avoid any subsurface utilities.

S O I L V A P O R S A M P L I N G
Under the direction of SCS, H&P Mobile Geochemistry (H&P) of Carlsbad, California installed soil vapor probes to a depth of 5 feet below grade at 50 locations (SV1 through SV50). In addition, nested probes were installed at a number of these locations at the 15- and/or 30-foot depths. At twelve of the 50 locations (SV2, SV3, SV8, SV11, SV12, SV15, SV16, SV23, SV25, SV27, SV35, and SV36) soil vapor probes were installed at 15 feet bgs and at five of the 50 locations (SV3, SV8, SV34, SV35, and SV36) soil vapor probes were installed at 30 feet bgs.

An attempt was made to collect a 15-foot sample from SV34, however high vacuum was encountered and a sample was not attainable. Soil vapor locations are shown on Figure 2.

Soil vapor sampling equipment consisted of hollow steel rods mechanically driven into subsurface soils to the desired depth using a handheld Roto-hammer or direct-push drill rig. The steel rods were retracted from each boring and new (clean) 1/8-inch diameter Nylaflow tubing, with a polypropylene filter placed on the bottom end, was inserted to the desired depth. Clean #2/12 Monterey sand was placed in a 6-inch vertical interval around each filter. A bentonite seal P r o l o g i s – D o w n e y I n d u s t r i a l C e n t e r P h a s e I I I n v e s t i g a t i o n

4 was placed above the sand pack for each probe. The remaining annular space was then backfilled with bentonite and hydrated.

Soil vapor sampling was conducted in general accordance with the Advisory – Active Soil Gas Investigations, published by the Regional Water Quality Control Board and Department of Toxic Substance Control in July 2015 (the “Guidance”). Following a minimum of 30 minutes after being set, the probes were purged to remove ambient air from the sampling system and ensure that the collected soil vapor sample was representative of soil conditions. A three system purge volume was used for all locations. In addition, prior to collecting samples into glass syringes, a leak-check compound (1,1-difluoroethane) was exposed at the surface. Note that the leak-check compound was not detected in any of the analyzed samples.

A total of 74 soil vapor samples (including one replicate sample per sampling event from SV10, SV12, SV20, SV27, SV34, and SV40) were collected and analyzed for VOCs using EPA Method 8260SV (equivalent to EPA Method 8260B) in an on-site mobile laboratory provided by H&P.

H&P is certified by the California Department of Health Services to conduct the specified analysis. Chain-of-custody documentation was completed in order to accurately track the samples from the point of collection through analysis.

After all samples had been collected and the soil vapor analysis completed, the probes were removed and the surface was patched to match the surrounding surface material. No soil cuttings or water requiring disposal were generated during the soil vapor assessment activities.

S o i l V a p o r A n a l y t i c a l R e s u l t s
The H&P laboratory reports, chain-of-custody documentation and quality assurance/control (QA/QC) data are included as Appendix A.

As summarized in Table 1, a total of ten VOCs were detected in soil vapor. Although tetrachloroethene (PCE) was detected in more samples (61 of the 74 samples, including replicates), trichloroethene (TCE) was found at much higher concentrations in most of the 51 samples (including replicates) in which it was detected. TCE was detected at concentrations ranging from 0.13 to 1,300 micrograms per liter (µg/l) and PCE at concentrations ranging from

0.09 to 250 µg/l.

The remaining VOCs detected included chloroform in 15 samples (concentrations ranged from

0.09 to 3.4 µg/l), 1,1,2-trichlorotrifluoroethane (Freon 113) in 12 samples (0.47 to 5.4 µg/l), cis- 1,2-dichloroethene (cis-1,2-DCE) in five samples (0.64 to 7.4 µg/l), benzene in three samples (0.08 to 0.99 µg/l), 1,1-dichloroethene (1,1-DCE) in three samples (0.50 to1.2 µg/l), 1,1,1- trichloroethane in two samples (2.7 and 8.3 µg/l), and trans-1,2-dichloroethene (trans-1,2-DCE) and vinyl chloride were each detected in one sample at concentrations of 1.2 and 0.07 µg/l, respectively.

P r o l o g i s – D o w n e y I n d u s t r i a l C e n t e r P h a s e I I I n v e s t i g a t i o n

5 S O I L S A M P L I N G A N D A NA L Y S I S
Under the direction of SCS, H&P conducted soil sampling using a truck-mounted direct-push drill rig. A total of 20 soil borings were drilled for the collection of soil samples. Soil boring locations are shown on Figure 2. Borings at 14 locations (SB1, SB4 through SB13, SB16, SB19, and SB20) extended to a depth of 10 feet bgs, with soil samples collected at the 1-, 5-, and 10-foot depths. Five locations (SB2, SB3, SB15, SB17, and SB18) were drilled to 20 feet bgs with samples collected at 5-foot intervals. Boring SB14 was extended to 15 feet bgs with samples collected at 1, 5, 10, and 15 feet bgs.

Soil borings were drilled using a truck-mounted direct-push drill rig equipped with a hydraulic hammer and a 2-foot long, 1.5-inch diameter sampler. A pointed steel tip was fixed to the head of the solid-spoon sampler and driven to the desired sampling depth. Soil matrix samples were collected by retracting the drive tip through the center of the sampler with an inner rod, and hydraulically hammering the sampler an additional two feet. Soil samples were recovered in two-foot long, 1-inch diameter pre-cleaned plastic acetate sleeves that had been placed inside the sampler. At each sampling depth, an approximately 6- to 12-inch section was cut from the sample sleeve and preserved for subsequent laboratory analysis, as described below.

In addition to the soil borings described above, eight deep borings (designated GW1 through GW8; Figure 2) were drilled with a truck-mounted hollow-stem auger drill rig operated by Cascade Environmental (Cascade) of Montclair, California with oversight by SCS on February 13, 14, and 15 and March 13, and 14, 2017. These borings were advanced in order to obtain grab groundwater samples. As further discussed below, groundwater was encountered between approximately 80 and 85 feet bgs. Soil samples were collected for lithological purposes only from GW1 and GW2 (first phase of investigation) and for lithological and laboratory analysis from GW6 and GW7 (second phase of investigation). A truck-mounted hollow-stem auger drill rig was used to drill and collect samples. During drilling of GW1 and GW2, soil samples were collected at 10-foot intervals from a depth of 30 to 80 feet bgs in order to observe lithology since all other borings during the first phase of investigation terminated at a maximum depth of 20 feet bgs. Samples from GW6 and GW7 were at 10 foot intervals from 10 to 80 feet bgs.

Soil samples obtained using the hollow-stem auger drill rig were collected using a split-spoon drive sampler. The sampler was unlined to obtain core samples for lithological observations during sampling of GW1 and GW2 and lined with brass sample tubes for collection of analytical samples during drilling of GW6 and GW7.

All soil samples for laboratory analysis were prepared in the field for analysis of VOCs using EPA Method 5035, which includes the collection of three 5-gram aliquots of soil from each soil sample using a plunger/sub-sampler provided by the laboratory. The three aliquots of soil were immediately placed in 40 milliliter VOA (volatile organic analysis) vials as follows – two aliquots in VOAs with a sodium bisulfate preservative and one in a methanol preservative. The remaining soil in the sleeve was retained for lithology as discussed below. The ends of the sample tubes were covered with Teflon squares, sealed with plastic end caps, and secured with non-volatile tape.

P r o l o g i s – D o w n e y I n d u s t r i a l C e n t e r P h a s e I I I n v e s t i g a t i o n

6 A portion of each sample sleeve was observed for soil classification and to screen samples for indications of potential contamination, such as discoloration and odor. No soil samples collected showed signs of contamination in the field. Boring logs recording the lithology observed are provided in Appendix B. After soil sample collection, the shallow borings (20 feet or less) were backfilled with bentonite and hydrated throughout and the deep borings were backfilled with a cement/bentonite slurry. The surface of each boring was patched to match the surrounding surface cover.

The samples were placed in a chilled ice-chest for transport to Chemtek Environmental Laboratories, Inc (Chemtek) of Santa Fe Springs, California. In total, 66 soil samples were analyzed for TPH using EPA Method 8015M, 76 soil samples were analyzed for VOCs by EPA Method 8260B, 30 soil samples were selected for analysis of CAM-metals using EPA Method 6010B/7471A, four soil samples were selected for analysis of hexavalent chromium using EPA Method 7199, and four soil samples were selected for analysis of organochlorine pesticides (OCPs) using EPA Method 8081A.

Chemtek is certified by the California Department of Health Services to conduct the specified analyses. Samples were tracked from the point of collection through the laboratory using proper chain-of-custody protocol.

S o i l A n a l y t i c a l R e s u l t s
The Chemtek laboratory report, chain-of-custody documentation, and quality assurance/quality control (QA/QC) data are included as Appendix C. Analytical results for TPH, VOCs, and organochlorine pesticides (OCPs) are summarized in Table 2 and a summary of metals, including hexavalent chromium, is provided in Table 3.

As shown in Table 2, TPH as gasoline and light hydrocarbons (TPH-g [carbon-chain range C4- C12]) was not detected in any soil samples. TPH as diesel (TPH-d [carbon-chain range C13-C22]) was detected in two soil samples, SB5-1’ and SB7-5’, at concentrations of 127 and 10.5 mg/kg, respectively. Heavy oil-range TPH (TPH-o [carbon-chain range C23-C40]) was detected in three soil samples (SB5-1’, SB7-5’, and SB18-5’) at concentrations of 818, 41.5, and 42.8 mg/kg, respectively.

PCE was detected in 20 of 76 soil samples with concentrations ranging from 1.02 to 10.5 micrograms per kilogram [µg/kg]). TCE was detected in 22 of 76 soil samples with concentrations ranging from 1.01 to 34 µg/kg. Cis-1,2-DCE was detected in one sample (GW7- 40) at a concentration of 2.57 µg/kg and 1,1-DCE was detected in two samples GW6-40 and GW7-40 at concentrations of 1.89 and 1.13 µg/kg, respectively. As shown in Table 2, of the four samples analyzed for OCPs, one sample (SB4-1’) had a detection of 4,4-DDE at a concentration of 5.51 µg/kg.

Analytical results of metals concentrations in selected soil samples are summarized in Table 3.

The metals detected in samples collected at the Property included arsenic, barium, chromium, cobalt, copper, lead, nickel, vanadium, and zinc. With the exception of arsenic in SB18-5, SB18- 10, and SB20-1 all other metals were detected at, or below, concentrations typically found in Southern California soils. Four samples (SB14-1, SB14-5, SB16-1, and SB16-5) were analyzed P r o l o g i s – D o w n e y I n d u s t r i a l C e n t e r P h a s e I I I n v e s t i g a t i o n

7 for hexavalent chromium; one sample (SB14-1) had a detection of 0.329 mg/kg (Table 3), which is below regulatory thresholds.

G R O U N D W A T E R S A M P L I N G A N D A N A L Y S IS A permit was obtained from the County of Los Angeles Department of Public Health, Drinking Water Program to collect groundwater samples. A copy of the permit is provided in Appendix D.

As previously discussed, eight deep borings were drilled on February 13 through 15 and March 13 and 14, 2017 for the purpose of collecting grab groundwater samples (GW1 through GW8; Figure 2). Drilling and soil samples was conducted by Cascade, as discussed above.

Borings were terminated approximately 2 to 3 feet into groundwater which was encountered between approximately 80 and 85 feet bgs. Groundwater “grab” samples were recovered from each boring by placing temporary PVC casing through the hollow stem augers and using a disposable bailer to recover groundwater samples. A 5-foot screen was set in the water column and six feet of #3 Monterey sand was used as a filter pack around the screened interval.

Groundwater samples were collected without headspace, in 40 milliliter VOAs preserved with hydrochloric acid.

Upon completion of the groundwater sampling, all auger and sampling materials were removed and the borings were backfilled with a bentonite grout and the surface patched to match the surrounding surface.

G r o u n d w a t e r A n a l y t i c a l R e s u l t s The Chemtek laboratory report, chain-of-custody documentation, and quality assurance/quality control (QA/QC) data are included as Appendix C.

Analytical results for VOCs in groundwater are summarized in Table 4. TCE and cis-1,2-DCE were detected in six out of the eight sample locations at concentrations ranging from 1.34 to 68.9 and 2.50 to 20.5 µg/l, respectively. 1,1-Dichloroethane (1,1-DCA) was detected in four samples at concentrations ranging from 1.05 to 4.47 µg/l. 1,1-DCE was detected in three samples at concentrations between 1.12 and 4.77 µg/l and trans-1,2-DCE and methyl tert-butyl ether (MTBE) were each detected in one sample at concentrations of 1.63 and 3.37 µg/l, respectively.

The results are discussed in greater detail in Section 5.0.

D I S P O S A L O F I N V E S T I G A T I O N D E R I V E D W A S T E S Soil cuttings and decontamination water generated during drilling of GW1 through GW8 were placed in 55-gallon steel drums, labeled, and stored on the Property until properly characterized and profiled for disposal. The drums were transported from the Property on February 24 and March 23, 2017 under non-hazardous waste manifest to K-Pure Waterworks, Inc. in Rancho Cucamonga, California. Documentation of the appropriate recycling and/or disposal of waste drums is available upon request.

P r o l o g i s – D o w n e y I n d u s t r i a l C e n t e r P h a s e I I I n v e s t i g a t i o n

8 5 DISCUSSION OF ANALYT ICAL RESULTS AND

REGULATORY LIMITS

V O C S I N S O I L V A P O R
The California Department of Toxic Substances Control (DTSC), Human and Ecological Risk Office (HERO) has issued Human Health Risk Assessment Note Number 3 (Note No. 3), most recently revised in June 2016. Note No. 3 makes recommendations regarding the methodology and use of the U.S. Environmental Protection Agency (EPA) Regional Screening Levels (RSLs; most recently updated in May 2016), and DTSC-modified Screening Levels (SLs) for soil vapor screening under residential and commercial/industrial land use scenarios.

SLs for evaluating soil vapor intrusion are calculated using indoor air SLs and recommended attenuation factors and are referred to by SCS as DTSC-Recommended SLs. These calculated soil vapor screening levels are for samples collected near the source area either for existing buildings or future buildings (Guidance for the Evaluation and Mitigation of Subsurface Vapor Intrusion to Indoor Air, DTSC and CalEPA, October 2011). The term “near the source area” is considered to be at or just above the contaminant source, generally no more than five feet beneath a building foundation. The values calculated using Note No. 3 recommendations are conservative. Chemical concentrations in excess of the calculated DTSC-Recommended SLs are not conclusive evidence of adverse risks to human health. Additional investigation – such as sub-slab sampling, indoor air assessments, site-specific health risk assessments, etc. – may be warranted to further assess site-specific health risks.

The Property is currently used as commercial warehouse and manufacturing space, but may be redeveloped in the future. Therefore soil vapor results from this investigation are compared to the DTSC-Recommended SLs for both existing and future commercial sites in Table 1. Note that the DTSC-Recommend SLs for future buildings are double the DTSC-Recommend SLs for existing buildings.

VOCs in soil vapor samples with concentrations above the DTSC-Recommend SLs for existing and future commercial buildings are as follows:

 TCE was detected in 39 samples above the commercial DTSC-Recommended SL of 3.0 µg/l for existing buildings. TCE was detected in 36 samples above the commercial DTSC-Recommended SLs of 6 µg/l, for future commercial/industrial buildings.

Concentrations detected at the Property ranged from 0.55 to 1,300 µg/l.

 PCE was detected in 33 samples above the commercial DTSC-Recommended SL of 2.0 µg/l for existing buildings and in 30 samples above the commercial DTSC-Recommend SL of 4 µg/l, for future buildings. Concentrations detected at the Property ranged from

0.48 to 250 µg/l.

 Chloroform was detected in 9 samples above commercial DTSC-Recommended SL of

0.53 µg/l for existing buildings and in 7 samples above the commercial DTSC- P r o l o g i s – D o w n e y I n d u s t r i a l C e n t e r P h a s e I I I n v e s t i g a t i o n

9 Recommend SL of 1.1 µg/l, for future buildings. Concentrations detected at the Property ranged from 0.12 to 3.4 µg/l.

 Benzene was detected in one sample above the DTSC-Recommend SLs for commercial existing buildings and commercial future buildings of 0.42,and 0.84 µg/l, respectively.

No other VOCs were detected above their commercial limits. Because the Property is currently commercial, concentrations are not compared to the residential limits for existing buildings.

Figures 3, 4, and 5 show isoconcentration contours of TCE along with vapor concentrations at 5, 15, and 30 feet bgs. Figures 6, 7, and 8 depict the same for PCE. As depicted on these figures, the highest concentrations of TCE and PCE are located on the eastern portion of the Property.

The concentrations appear to increase with depth at this location with the highest concentrations of TCE (1,300 µg/l) and PCE (250 µg/l) detected at 30 feet bgs in SV36.

In addition, secondary minor releases appear be located on the western side of the Property at 9300 Hall Road and 9301 Stewart and Gray Road. The concentrations of TCE and PCE in these areas are significantly lower.

V O C S A N D O C P S I N S O I L
In additional to the soil vapor screening discussed above, Note No. 3 also recommends the use of U.S. EPA Region 9 RSLs for the majority of the regulated chemicals in soil at hazardous waste sites and permitted facilities. However, for certain chemicals and compounds, DTSC has calculated a more stringent SL. Human health risks associated with contact of contaminated soil (dermal, ingestion, etc.) in California can be assessed by comparing concentrations detected at the Property to the most stringent (or conservative) of these values for each chemical, referred to as the DTSC-Recommended SLs and presented on Table 2.

As shown in Table 2, the concentrations of all VOCs and OCPs detected were well below their corresponding DTSC-Recommended SLs for both residential and commercial sites. Therefore, these VOCs and OCPs for soil do not appear to represent a risk to human health for both residential and industrial/commercial exposure scenarios and would not be a concern to a regulatory agency.

T P H I N S O I L
The Los Angeles Regional Water Quality Control Board (LARWQCB) has established cleanup guidelines, also known as soil screening levels (SSLs), for assessing soils based on the potential for groundwater contamination (LARWQCB, 1996). Based on the depth to groundwater of approximately 80 feet bgs at the Property, the SSLs for petroleum hydrocarbons between 20 and 150 feet above groundwater are:

 TPH-g or gasoline-range hydrocarbons (C4-C12) – 500 mg/kg  TPH-d or diesel-range hydrocarbons (C13-C22) – 1,000 mg/kg  TPH-o or oil/heavy-range hydrocarbons (C23-C40) – 10,000 mg/kg.

P r o l o g i s – D o w n e y I n d u s t r i a l C e n t e r P h a s e I I I n v e s t i g a t i o n

10 As shown in Table 2, the TPH concentrations detected do not exceed the corresponding SSLs and are not considered a threat to groundwater.

M E T A L S I N S O I L
Regulatory guidance for metals in soil is based on an evaluation of both background and risk- based concentrations. The Kearney Foundation of Soil Science published a special report of background concentrations of trace and major elements in California soils (Bradford et al, 1996).

In addition, human health risks associated with contact of contaminated soil (dermal, ingestion, etc.) in California are assessed by comparing concentrations detected at the Property to the most stringent (or conservative) of the RSLs, DTSC-SLs or other screening level (e.g. California Human Health Screening Level [CHHSL] used for lead), cumulatively referred to in this report as the DTSC-Recommended SLs (see Table 3).

As shown in Table 3, with the exception of arsenic, the analytical results for all metals in the samples analyzed were below their below or within the typical background concentrations ranges for California soils and below their corresponding DTSC-Recommended SLs for soils at residential and commercial/industrial sites.

With regard to arsenic, the US EPA has acknowledged that in some cases, the predictive risk- based models generate SLs that lie within or even below typical background concentrations. If natural background concentrations are higher than the risk-based SLs, an adjustment of the SL is probably needed. US EPA uses naturally occurring arsenic in soils as an example. Further, the DTSC has acknowledged that the strict use of SLs is impractical and has set acceptable levels of arsenic in soil in the range of 8 to 12 mg/kg for school sites in California. Of the 20 samples analyzed for metals, three (SB18-5, SB18-10, and SB20-1) had arsenic concentrations greater than 12 mg/kg. The 5-foot sample from SB20 (SB20-5) had a significantly lower arsenic concentration (4.39 mg/kg), as did the 15-foot sample from SB18 (SB18-15 at 10.5 mg/kg) and the 20-foot sample from SB18 (SB18-20) was non-detect for arsenic. These latter concentrations are within typical background range and below the acceptable range set by DTSC, indicating that elevated arsenic does not extend vertically as deep as 5 feet bgs at location SB20 and as deep as 15 feet bgs in location SB18.

One sample (SB14-1) contained hexavalent chromium at a concentration of 0.329 mg/kg which is above the residential DTSC-Recommended SL of 0.3 mg/kg but below the commercial DTSC- Recommended SL of 6.3 mg/kg. In addition, the deeper sample (5 feet bgs) from this boring (SB14-5) did not contain a detectable concentration of hexavalent chromium.

V O C S I N G R O U N D W A T E R
The VOCs detected in groundwater are compared to drinking water standards known as the California maximum contaminant levels (MCLs) in Table 4.

As shown, TCE exceeded its MCL of 5 µg/l in 5 of the 6 samples in which it was detected (GW2, GW4, GW5, GW6 and GW7). Cis-1,2-DCE was detected in one of 6 samples (GW4) at a concentration above its MCL of 6 µg/l. None of the other four VOCs detected were above their P r o l o g i s – D o w n e y I n d u s t r i a l C e n t e r P h a s e I I I n v e s t i g a t i o n

11 respective MCLs. In general, the highest concentrations of VOCs were detected in GW4, located adjacent to the southwest corner of the 9399 Stewart and Gray building.

6 CONCLUSIONS AND RECOMMENDATIONS
Two phases of investigation were conducted by SCS on February 13, 14, 15, 17, and on March 13, 14, 16, and 17, 2017, which included soil, soil vapor, and groundwater sampling at the Property. The objectives of these investigations were to assess the RECs identified in the Phase I ESA for Downey Industrial Center (SCS, January 2017) and to further characterize impacts to the Property during the due diligence period. Based on the results of this investigations, SCS concludes the following:

 TCE and PCE were the most prevalent VOCs detected in soil vapor. TCE was detected in 51 of 74 soil vapor samples collected at concentrations up to 1,300 µg/l (at a depth of 30 feet bgs). A total of 39 of these samples were detected above the DTSC- recommended SL of 3.0 µg/l for existing commercial/industrial buildings and 36 of the samples were detected above the DTSC-recommended SL of 6.0 µg/l for a future commercial structure. Figures 3, 4, and 5 show estimated TCE vapor concentration contours at 5, 15, and 30 feet bgs.

PCE was detected in 61 of the 74 soil vapor samples collected at concentrations up to 250 µg/l. A total of 33 samples were detected above the DTSC-recommended SL of 2.0 µg/l for an existing commercial/industrial building and in 30 samples above the DTSC- Recommend SL of 4 µg/l for a future commercial/industrial building. Figures 6, 7, and 8 show estimated PCE vapor concentration contours at 5, 15, and 30 feet bgs.

As depicted on Figures 3 through 8, the distribution of TCE and PCE in soil vapor is in the area of 9399 Stewart and Gray Road on the eastern portion of the Property. In addition, lower concentrations of PCE and TCE were identified at 9300 Hall Road on the western portion of the Property.

 The metals detected in samples collected at the Property included arsenic, barium, chromium, cobalt, copper, lead, nickel, vanadium, and zinc. With the exception of arsenic in SB18-5, SB8-10, and SB20-1 all other metals were detected at, or below, concentrations typically found in Southern California soils and below their corresponding DTSC-Recommended SLs. A deeper sample collected at SB20 (SB20-5) had a significantly lower arsenic concentration (4.39 mg/kg), as did a deeper sample at SB18 (SB18-15 at 10.5 mg/kg) within typical background range and below the acceptable range set by DTSC, indicating that elevated arsenic does not extend vertically. One sample (SB14-1) contained hexavalent chromium at a concentration of 0.329 mg/kg which is below the DTSC-Recommended SL of 6.3 mg/kg for commercial sites. The deeper sample at this location (SB14-5) did not contain hexavalent chromium.

 The TPH concentrations detected do not exceed the corresponding SSLs and are not indicative of a potential risk to groundwater. Based on the distribution of the detected petroleum hydrocarbons and the relatively low concentrations, the presence of these P r o l o g i s – D o w n e y I n d u s t r i a l C e n t e r P h a s e I I I n v e s t i g a t i o n

12 substances does not appear to represent a significant release on the Property and would likely not be a concern to a regulatory agency.

 The concentrations of all VOCs and OCPs detected in soil were well below their corresponding DTSC-Recommended SLs for soil at both residential and commercial sites. Therefore, these VOCs and OCPs in soil do not appear to represent a risk to human health and would not be a concern to a regulatory agency.

 Analysis of eight grab groundwater samples indicates that groundwater beneath the Property has been impacted by VOCs (predominantly TCE and PCE). TCE was detected above its MCL of 5 µg/l in five of the eight samples collected. One sample location had a detection of cis-1,2-DCE that was above the MCL of 6 µg/l.

In addition to the conclusions and recommendations stated above, SCS recommends that future investigations and subsequent remediation work be performed with the oversight of a regulatory agency.

P r o l o g i s – D o w n e y I n d u s t r i a l C e n t e r P h a s e I I I n v e s t i g a t i o n

13 7 REFERENCES
Bradford, G.R., Chang, A.C., Page, A.L., Bakhtar, D., Fampton, J.A., and Wright, H., 1996, Background Concentrations of Trace and Major Elements in California Soils, Kearney Foundation of Soil Science Special Report, Division of Agriculture and Natural Resources, University of California.

California Department of Toxic Substances Control and Regional Water Quality Control Board, July 2015. Advisory – Active Soil Gas Investigations.

California Department of Toxic Substances Control (DTSC) and California Environmental Protection Agency (CalEPA), October 2011. Guidance for the Evaluation and Mitigation of Subsurface Vapor Intrusion to Indoor Air (Vapor Intrusion Guidance).

California Department of Toxic Substances Control (DTSC), Office of Human and Ecological Risk (HERO), June 2016. Human Health Risk Assessment (HHRA) Note Number 3.

California Department of Water Resources, March 1966. Planned Utilization of the Ground Water Basins of the Coastal Plain of San Gabriel Valley. Bulletin No. 104-2.

California Environmental Protection Agency, State Water Resources Control Board. Geotracker website; http://geotracker.waterboards.ca.gov/

California Environmental Protection Agency, January 2005. Use of California Human Health Screening Levels (CHHSLs) in Evaluation of Contaminated Properties.

RWQCB (Los Angeles Region), May 1996. Interim Site Assessment & Cleanup Guidebook.

SCS Engineers. January 2017. Phase I Environmental Assessment, Downey Industrial Site, 9300, 9350, and 9400 Hall Road 9301, 9333, and 9399 Stewart & Gray Road, Downey, California 90241.

State of California Department of Water Resources (DWR), March 1966. Bulletin No. 104-2, Planned Utilization of the Ground Water Basins, San Gabriel Valley, Appendix A:

Geohydrology.

United States Environmental Protection Agency, Region IX, July 2016. Regional Screening Levels.

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F I G U R E S 1 T H R O U G H 9

S C S E N G I N E E R S
4 SITE:

SITE LOCATION MAP
Job No.: 01216368.00
Title:

PROJECT SITE
9300, 9350, & 9400 Hall Road
9301, 9333, & 9399 Stewart Gray Road
Downey, California 90241
SB13SB12SB11SB10
SB1GW5
ENVIRONMENTAL CONSULTANTSPROJECT TITLE:

SHEET TITLE:

APP. BY:ACAD FILE:CHK. BY:DWN. BY:DSN. BY:PROJ. NO.

DATE:SCALE:DRAWING NO.

CLIENT:3900 KILROY AIRPORT WAY, SUITE 100LONG BEACH, CALIFORNIA 90806PH. (562) 426-9544 FAX. (562) 427-0805MARCH 20171" = 150'2SCS ENGINEERSDOWNEY INDUSTRIAL CENTER9300, 9350, AND 9400 HALL ROAD9301, 9333, AND 9399 STEWART & GRAY ROADDOWNEY, CALIFORNIA01216368.00 T3CEHAPHKWGPROJECTS/01216368KWG PROLOGIS, INCPIER 1, BAY 1SAN FRANCISCO, CALIFORNIA 94111SITE MAP SHOWING SAMPLE LOCATIONS

LEGENDSOIL BORING LOCATIONSSOIL VAPOR PROBESGROUNDWATER SAMPLE LOCATION 3 50 3
(0.13)(<0.08)
(0.21)(<0.08)
(<0.08)(<0.08)(<0.08)
(<0.08)(<0.08)(69)
(370)
(1.0/1.4R)(280/330R)
(440)(24)
(1.5)
(4.4)
(<0.08)(<0.08)
(<0.08)(<0.08)
(<0.08)(<0.08)(<0.08)(<0.08)(12/11R)(2.0)
(4.7)(0.55)(11)(1.8)(<0.08)
(<0.08)
100200400
(140)(110)(120)
(140)(280)(120)(20/14R)(19)(7.1)(6.7)(18)
(230)(440)(260)(2.7/3.8R)
(190)(74)
3 ENVIRONMENTAL CONSULTANTSPROJECT TITLE:

SHEET TITLE:

APP. BY:ACAD FILE:CHK. BY:DWN. BY:DSN. BY:PROJ. NO.

DATE:SCALE:DRAWING NO.

CLIENT:3900 KILROY AIRPORT WAY, SUITE 100LONG BEACH, CALIFORNIA 90806PH. (562) 426-9544 FAX. (562) 427-0805MARCH 20171" = 150'3SCS ENGINEERS 01216368.00 T3CEHAPHKWGPROJECTS/01216368KWG
PROLOGIS, INCPIER 1, BAY 1SAN FRANCISCO, CALIFORNIA 94111SITE MAP SHOWING ISOCONCENTRATION CONTOURS OFTRICHLOROETHENE AT 5 FEET BGS IN SOIL VAPOR

LEGENDSOIL VAPOR PROBE LOCATIONS
NOT DETECTED, LESS THAN REPORTINGLIMIT(<0.08)TCE CONCENTRATION AT 5 FEET BELOW GROUND685)$&(,10,&52*5$063(5/,7(5 JO
(3.3)ESTIMATED TRICHLOROETHENE (TCE) CONTOUR OFEQUAL CONCENTRATION AT 5 FEET BELOW GROUNDSURFACE DOWNEY INDUSTRIAL CENTER9300, 9350, AND 9400 HALL ROAD9301, 9333, AND 9399 STEWART & GRAY ROADDOWNEY, CALIFORNIA

R REPLICATE SAMPLE
400(<0.08/<0.08R)
(0.14)
(0.41)(<0.08)
(<0.08)
(<0.08)
(11)
(72)
(0.63)
(42)
(280)
(430)
50 100200
ENVIRONMENTAL CONSULTANTSPROJECT TITLE:

SHEET TITLE:

APP. BY:ACAD FILE:CHK. BY:DWN. BY:DSN. BY:PROJ. NO.

DATE:SCALE:DRAWING NO.

CLIENT:3900 KILROY AIRPORT WAY, SUITE 100LONG BEACH, CALIFORNIA 90806PH. (562) 426-9544 FAX. (562) 427-0805MARCH 20171" = 150'4SCS ENGINEERS 01216368.00 T3CEHAPHKWGPROJECTS/01216368KWG
PROLOGIS, INCPIER 1, BAY 1SAN FRANCISCO, CALIFORNIA 94111SITE MAP SHOWING ISOCONCENTRATION CONTOURS OFTRICHLOROETHENE AT 15 FEET BGS IN SOIL VAPOR

LEGENDSOIL VAPOR PROBE LOCATIONS
NOT DETECTED, LESS THAN REPORTINGLIMIT(<0.08)TCE CONCENTRATION AT 15 FEET BELOW GROUND685)$&(,10,&52*5$063(5/,7(5 JO
(3.3)ESTIMATED TRICHLOROETHENE (TCE) CONTOUR OFEQUAL CONCENTRATION AT 15 FEET BELOWGROUND SURFACE DOWNEY INDUSTRIAL CENTER9300, 9350, AND 9400 HALL ROAD9301, 9333, AND 9399 STEWART & GRAY ROADDOWNEY, CALIFORNIA

R REPLICATE SAMPLE
800400(900)
(1,300)
(260)
(320)(460)
ENVIRONMENTAL CONSULTANTSPROJECT TITLE:

SHEET TITLE:

APP. BY:ACAD FILE:CHK. BY:DWN. BY:DSN. BY:PROJ. NO.

DATE:SCALE:DRAWING NO.

CLIENT:3900 KILROY AIRPORT WAY, SUITE 100LONG BEACH, CALIFORNIA 90806PH. (562) 426-9544 FAX. (562) 427-0805MARCH 20171" = 150'5SCS ENGINEERS 01216368.00 T3CEHAPHKWGPROJECTS/01216368KWG
PROLOGIS, INCPIER 1, BAY 1SAN FRANCISCO, CALIFORNIA 94111SITE MAP SHOWING ISOCONCENTRATION CONTOURS OFTRICHLOROETHENE AT 30 FEET BGS IN SOIL VAPOR

LEGENDSOIL VAPOR PROBE LOCATIONS
TCE CONCENTRATION AT 30 FEET BELOW GROUND685)$&(,10,&52*5$063(5/,7(5 JO
(3.3)ESTIMATED TRICHLOROETHENE (TCE) CONTOUR OFEQUAL CONCENTRATION AT 30 FEET BELOWGROUND SURFACE DOWNEY INDUSTRIAL CENTER9300, 9350, AND 9400 HALL ROAD9301, 9333, AND 9399 STEWART & GRAY ROADDOWNEY, CALIFORNIA

(0.81)
(17)
(0.71)
(<0.08)
(0.44)
(<0.08)(0.09)
(0.17)
(1.8/1.1R)
(2.7)
(49)
(65)
250
ENVIRONMENTAL CONSULTANTSPROJECT TITLE:

SHEET TITLE:

APP. BY:ACAD FILE:CHK. BY:DWN. BY:DSN. BY:PROJ. NO.

DATE:SCALE:DRAWING NO.

CLIENT:3900 KILROY AIRPORT WAY, SUITE 100LONG BEACH, CALIFORNIA 90806PH. (562) 426-9544 FAX. (562) 427-0805MARCH 20171" = 150'7SCS ENGINEERS 01216368.00 T3CEHAPHKWGPROJECTS/01216368KWG
PROLOGIS, INCPIER 1, BAY 1SAN FRANCISCO, CALIFORNIA 94111SITE MAP SHOWING ISOCONCENTRATION CONTOURS OFTETRACHLOROETHENE AT 15 FEET BGS IN SOIL VAPOR

LEGENDSOIL VAPOR PROBE LOCATIONS
NOT DETECTED, LESS THAN REPORTINGLIMIT(<0.08)PCE CONCENTRATION AT 15 FEET BELOWGROUND SURFACE IN MICROGRAMS PER LITER JO
(3.3)ESTIMATED TETRACHLOROETHENE (PCE) CONTOUROF EQUAL CONCENTRATIONAT 15 FEET BELOWGROUND SURFACE DOWNEY INDUSTRIAL CENTER9300, 9350, AND 9400 HALL ROAD9301, 9333, AND 9399 STEWART & GRAY ROADDOWNEY, CALIFORNIA

R REPLICATE SAMPLE
50200
(78)
(250)
(24)
(60) (39)
ENVIRONMENTAL CONSULTANTSPROJECT TITLE:

SHEET TITLE:

APP. BY:ACAD FILE:CHK. BY:DWN. BY:DSN. BY:PROJ. NO.

DATE:SCALE:DRAWING NO.

CLIENT:3900 KILROY AIRPORT WAY, SUITE 100LONG BEACH, CALIFORNIA 90806PH. (562) 426-9544 FAX. (562) 427-0805MARCH 20171" = 150'8SCS ENGINEERS 01216368.00 T3CEHAPHKWGPROJECTS/01216368KWG
PROLOGIS, INCPIER 1, BAY 1SAN FRANCISCO, CALIFORNIA 94111SITE MAP SHOWING ISOCONCENTRATION CONTOURS OFTETRACHLOROETHENE AT 30 FEET BGS IN SOIL VAPOR

LEGENDSOIL VAPOR PROBE LOCATIONS
PCE CONCENTRATION AT 30 FEET BELOWGROUND SURFACE IN MICROGRAMS PER LITER JO
(3.3)ESTIMATED TETRACHLOROETHENE (PCE) CONTOUROF EQUAL CONCENTRATIONAT 30 FEET BELOWGROUND SURFACE DOWNEY INDUSTRIAL CENTER9300, 9350, AND 9400 HALL ROAD9301, 9333, AND 9399 STEWART & GRAY ROADDOWNEY, CALIFORNIA TCE7.00CIS-1,2-DCE3.271,1-DCA3.541,1 - DCE<1TRANS-1,2-DCE<1MTBE<1 TCE68.9CIS-1,2-DCE20.51,1-DCA4.471,1 - DCE4.77TRANS-1,2-DCE1.63MTBE<1 TCE23.6CIS-1,2-DCE5.471,1-DCA1.051,1 - DCE1.64TRANS-1,2-DCE<1MTBE<1 TCE1.34CIS-1,2-DCE2.501,1-DCA<11,1 - DCE<1TRANS-1,2-DCE<1MTBE<1 TCE<1CIS-1,2-DCE<11,1-DCA<11,1 - DCE<1TRANS-1,2-DCE<1MTBE<1 TCE5.79CIS-1,2-DCE3.621,1-DCA<11,1 - DCE<1TRANS-1,2-DCE<1MTBE<1 TCE5.51CIS-1,2-DCE2.691,1-DCA1.381,1 - DCE1.12TRANS-1,2-DCE<1MTBE<1 TCE<1CIS-1,2-DCE<11,1-DCA<11,1 - DCE<1TRANS-1,2-DCE<1MTBE3.37 GW5
ENVIRONMENTAL CONSULTANTSPROJECT TITLE:

SHEET TITLE:

APP. BY:ACAD FILE:CHK. BY:DWN. BY:DSN. BY:PROJ. NO.

DATE:SCALE:DRAWING NO.

CLIENT:3900 KILROY AIRPORT WAY, SUITE 100LONG BEACH, CALIFORNIA 90806PH. (562) 426-9544 FAX. (562) 427-0805MARCH 20171" = 150'9SCS ENGINEERS 01216368.00 T3CEHAPHKWGPROJECTS/01216368KWG
PROLOGIS, INCPIER 1, BAY 1SAN FRANCISCO, CALIFORNIA 94111SITE MAP SHOWING GROUNDWATER SAMPLE LOCATIONSAND VOC ANALYTICAL RESULTS LEGENDGROUNDWATER SAMPLE LOCATIONSTCE7.00CIS-1,2-DCE3.271,1-DCA3.541,1 - DCE<1TRANS-1,2-DCE<1MTBE<1 SAMPLE DESIGNATIONCONCENTRATIONS IN MICROGRAMS3(5/,7(5 JO
TCE - TRICHLOROETHENECIS-1,2-DCE - CIS-1,2-DICHLOROETHENE1,1-DCA - 1,1-DICHLOROETHANE1,1-DCE - 1,1-DICHLOROETHENETRANS-1,2-DCE - TRANS-1,2-DICHLOROETHENEMTBE - METHYL TERT-BUTYL ETHER GW5
DOWNEY INDUSTRIAL CENTER9300, 9350, AND 9400 HALL ROAD9301, 9333, AND 9399 STEWART & GRAY ROADDOWNEY, CALIFORNIA P r o l o g i s – D o w n e y I n d u s t r i a l C e n t e r P h a s e I I I n v e s t i g a t i o n T A B L E S 1 T H R O U G H 4
Trichloroethene (TCE)
Tetrachloroethene (PCE)
1,1-Dichloroethene
Chloroform
Benzene
1,1,1-Trichloroethane
1,1,2
Trichlorotrifluoroethane
(F113)
Cis-1,2-Dichloroethene
Trans-1,2-dichloroethene
Vinyl Chloride
SV1 5 <0.08 <0.08 <0.40 <0.08 <0.08 <0.40 <0.40 <0.40 <0.40 <0.04 5 <0.08 <0.08 <0.40 <0.08 <0.08 <0.40 <0.40 <0.40 <0.40 <0.04 15 <0.08 <0.08 <0.40 <0.08 <0.08 <0.40 <0.40 <0.40 <0.40 <0.04 5 24 8.0 <0.40 <0.08 <0.08 <0.40 <0.40 <0.40 <0.40 <0.04 15 72 17 <0.40 <0.08 <0.08 <0.40 <0.40 0.64 <0.40 <0.04 30 3/16/2017 320 39 <2.0 <0.40 <0.40 <2.0 <2.0 4.1 <2.0 <0.20 SV4 5 2/15/2017 1.5 0.65 <0.40 <0.08 <0.08 <0.40 <0.40 <0.40 <0.40 <0.04 SV5 5 69 14 <0.40 <0.08 <0.08 <0.40 <0.40 <0.40 <0.40 <0.04 SV6 5 370 110 <4.0 1.2 0.99 <4.0 <4.0 <4.0 <4.0 <0.40
SV7 5 440 150 <0.40 3.4 0.08 <0.40 <0.40 <0.40 <0.40 <0.04 5 280 46 <0.40 1.4 <0.08 <0.40 <0.40 <0.40 <0.40 <0.04
5 330 59 <2.0 1.2 <0.40 <2.0 <2.0 <2.0 <2.0 <0.20
15 430 65 <10 <2.0 <2.0 <10 <10 <2.0 <10 <1.0
30 3/16/2017 900 78 <10 <2.0 <2.0 <10 <10 <10 <10 <1.0
SV9 5 4.4 7.8 <0.40 <0.08 <0.08 <0.40 <0.40 <0.40 <0.40 <0.04 5 <0.08 0.38 <0.40 <0.08 <0.08 <0.40 <0.40 <0.40 <0.40 <0.04 5-REP <0.08 0.36 <0.40 <0.08 <0.08 <0.40 <0.40 <0.40 <0.40 <0.04 5 <0.08 0.22 <0.40 <0.08 <0.08 <0.40 <0.40 <0.40 <0.40 <0.04 15 0.63 0.81 <0.40 <0.08 <0.08 <0.40 <0.40 <0.40 <0.40 <0.04 5 1.0 0.09 <0.40 <0.08 <0.08 <0.40 <0.40 <0.40 <0.40 <0.04 5-REP 1.4 0.12 <0.40 <0.08 <0.08 <0.40 <0.40 <0.40 <0.40 <0.04 15 11 0.71 <0.40 <0.08 <0.08 <0.40 <0.40 <0.40 <0.40 <0.04 SV13 5 <0.08 <0.08 <0.40 <0.08 <0.08 <0.40 <0.40 <0.40 <0.40 <0.04 SV14 5 <0.08 <0.08 <0.40 <0.08 <0.08 <0.40 0.53 <0.40 <0.40 <0.04 5 <0.08 <0.08 <0.40 <0.08 <0.08 <0.40 3.8 <0.40 <0.40 <0.04 15 <0.08 <0.08 <0.40 <0.08 <0.08 <0.40 5.4 <0.40 <0.40 <0.04 5 <0.08 0.66 <0.40 <0.08 <0.08 <0.40 <0.40 <0.40 <0.40 <0.04 15 <0.08 0.44 <0.40 <0.08 <0.08 <0.40 <0.40 <0.40 <0.40 <0.04 SV17 5 1.8 0.10 0.50 <0.08 <0.08 2.7 2.8 <0.40 <0.40 <0.04 SV18 5 11 0.26 0.51 0.33 <0.08 8.3 1.5 <0.40 <0.40 <0.04 SV19 5 4.7 1.5 <0.40 <0.08 <0.08 <0.40 0.54 <0.40 <0.40 <0.04 5 12 2.2 <0.40 <0.08 <0.08 <0.40 0.56 <0.40 <0.40 <0.04 5-REP 11 2.0 <0.40 <0.08 <0.08 <0.40 0.48 <0.40 <0.40 <0.04 SV21 5 2.0 0.09 <0.40 <0.08 <0.08 <0.40 <0.40 <0.40 <0.40 <0.04 SV22 5 <0.08 <0.08 <0.40 <0.08 <0.08 <0.40 1.0 <0.40 <0.40 <0.04 5 <0.08 <0.08 <0.40 0.09 <0.08 <0.40 0.70 <0.40 <0.40 <0.04 15 0.41 0.09 <0.40 0.12 <0.08 <0.40 2.4 <0.40 <0.40 <0.04 SV24 5 0.55 0.56 <0.40 <0.08 <0.08 <0.40 0.47 <0.40 <0.40 <0.04 5 <0.08 <0.08 <0.40 <0.08 <0.08 <0.40 <0.40 <0.40 <0.40 <0.04 15 0.14 0.17 <0.40 <0.08 0.08 <0.40 <0.40 <0.40 <0.40 <0.04 SV26 5 0.13 0.09 <0.40 <0.08 <0.08 <0.40 <0.40 <0.40 <0.40 <0.04 5 <0.08 1.0 <0.40 <0.08 <0.08 <0.40 <0.40 <0.40 <0.40 <0.04 15 <0.08 1.8 <0.40 <0.08 <0.08 <0.40 <0.40 <0.40 <0.40 <0.04 15-REP <0.08 1.1 <0.40 <0.08 <0.08 <0.40 <0.40 <0.40 <0.40 <0.04 SV28 5 2/15/2017 <0.08 0.10 <0.40 <0.08 <0.08 <0.40 <0.40 <0.40 <0.40 <0.04 SV29 5 0.21 2.1 <0.40 <0.08 <0.08 <0.40 <0.40 <0.40 <0.40 <0.04 SV30 5 <0.08 <0.08 <0.40 <0.08 <0.08 <0.40 <0.40 <0.40 <0.40 <0.04 SV31 5 <0.08 0.14 <0.40 <0.08 <0.08 <0.40 <0.40 <0.40 <0.40 <0.04 SV32 5 <0.08 <0.08 <0.40 <0.08 <0.08 <0.40 <0.40 <0.40 <0.40 <0.04 SV33 5 <0.08 <0.08 <0.40 <0.08 <0.08 <0.40 <0.40 <0.40 <0.40 <0.04 5 2.7 0.48 <0.40 <0.08 <0.08 <0.40 <0.40 <0.40 <0.40 <0.04 5-REP 3.8 0.64 <0.40 <0.08 <0.08 <0.40 <0.40 <0.40 <0.40 <0.04 30 460 60 1.2 <0.08 <0.08 <0.40 <0.40 3.2 1.2 0.07
5 7.1 0.73 <0.40 <0.08 <0.08 <0.40 <0.40 <0.40 <0.40 <0.04 15 42 2.7 <0.50 <0.10 <0.10 <0.50 <0.50 <0.50 <0.50 <0.05 30 260 24 <2.0 <0.40 <0.40 <2.0 <2.0 5.2 <2.0 <0.20
5 440 120 <0.40 2.3 <0.08 <0.40 <0.40 <0.40 <0.40 <0.04 15 280 49 <10 <2.0 <2.0 <10 <10 <10 <10 <1.0
30 1,300 250 <4.0 1.8 <0.80 <4.0 <4.0 7.4 <4.0 <0.40
SV37 5 19 6.5 <0.40 <0.08 <0.08 <0.40 <0.40 <0.40 <0.40 <0.04 SV38 5 6.7 1.8 <0.40 <0.08 <0.08 <0.40 <0.40 <0.40 <0.40 <0.04 SV39 5 18 4.7 <0.40 <0.08 <0.08 <0.40 <0.40 <0.40 <0.40 <0.04 5 20 6.1 <1.0 <0.20 <0.20 <1.0 <1.0 <1.0 <1.0 <0.10
5-REP 14 4.5 <1.0 <0.20 <0.20 <1.0 <1.0 <1.0 <1.0 <0.10 SV41 5 260 68 <1.0 1.2 <0.20 <1.0 <1.0 <1.0 <1.0 <0.10
SV42 5 120 11 <2.0 <0.40 <0.40 <2.0 <2.0 <2.0 <2.0 <0.20 SV43 5 280 35 <2.0 0.62 <0.40 <2.0 <2.0 <2.0 <2.0 <0.20 SV44 5 140 19 <0.40 0.15 <0.08 <0.40 <0.40 <0.40 <0.40 <0.04 SV45 5 120 15 <2.0 <0.40 <0.40 <2.0 <2.0 <2.0 <2.0 <0.20 SV46 5 110 16 <2.0 <0.40 <0.40 <2.0 <2.0 <2.0 <2.0 <0.20 SV47 5 140 29 <2.0 0.46 <0.40 <2.0 <2.0 <2.0 <2.0 <0.20 SV48 5 230 58 <2.0 0.84 <0.40 <2.0 <2.0 <2.0 <2.0 <0.20 SV49 5 190 41 <2.0 0.47 <0.40 <2.0 <2.0 <2.0 <2.0 <0.20 SV50 5 74 7.4 <2.0 <0.40 <0.40 <2.0 <2.0 <2.0 <2.0 <0.20

0.24 0.23 37 0.060 0.049 500 15,500 4.2 42 0.005

3.0 2.0 310 0.53 0.42 4,400 130,000 35 350 0.16

0.48 0.46 73 0.12 0.10 1,000 31,000 8.3 83 0.010

6.0 4.0 620 1.1 0.84 8,800 260,000 70 700 0.32
Notes:
bgs = below ground surface
2/15/2017
SV11
SV12
2/14/2017
2/15/2017
SV15
SV23
SV25
2/14/2017
2/15/2017
SV8
2/17/2017
DTSC-Recommended SL = Screening Level as recommended in California Department of Toxic Substances Control (DTSC), Office of Human and Ecological Risk (HERO), Human Health Risk Assessment (HHRA) Note No. 3 - Residential and commercial/industrial land use scenarios at an existing and future building (June 2016, Referencing U.S. Environmental Protection Agency Regional Screening Level Reference Summary Table - May 2016).

Three purge volumes were used for all sampling points.

Residential DTSC-Recommended SL (Existing)
Commercial/Industrial DTSC-Recommended SL (Existing)
SV16
2/17/2017
DOWNEY, CALIFORNIA 90241
SV2
SV20
2/17/2017
2/17/2017
SV10
SV27
Residential DTSC-Recommended SL (Future)
Commercial/Industrial DTSC-Recommended SL (Future)
SV40
TABLE 1

SUMMARY OF ANALYTICAL RESULTS FOR SOIL VAPOR SURVEY
9300, 9350, AND 9400 HALL ROAD AND 9301, 9333, AND 9399 STEWART AND GRAY ROAD Volatile Organic Compound (EPA Method 8260SV)
Micrograms per liter (µg/l)
3/17/2017
2/17/2017
Sample Number (or
Boring ID)

DOWNEY INDUSTIAL CENTER
3/17/2017
3/16/2017
SV34
SV35
SV36
SV3
Sampling DateSample Depth
(feet bgs)
TPH as Gasoline-
range Hydrocarbons
(C4 - C12)
TPH as Diesel-range
Hydrocarbons
(C13 - C22)
TPH as Motor Oil-
range Hydrocarbons
(C23 - C40)
Tetrachloroethene
(PCE)
Trichloroethene (TCE)
cis-1,2-Dichloroethene
(cis-1,2-DCE)
1,1-Dichloroethene
(1,1-DCE)
4,4-DDE
1 <0.2 <5.0 <10 <1.2 <1.2 <1.2 <1.2 <2.0
5 <0.2 <5.0 <10 8.54 21.9 <1 <1 --
10 <0.2 <5.0 <10 8.84 34.0 <1 <1 --
5 <0.2 <5.0 <10 1.67 1.71 <1 <1 --
10 <0.2 <5.0 <10 1.11 <0.9 <0.9 <0.9 --
15 <0.2 <5.0 <10 1.57 1.78 <0.9 <0.9 --
20 <0.2 <5.0 <10 2.12 2.35 <1 <1 --
5 <0.2 <5.0 <10 <1.1 <1.1 <1.1 <1.1 --
10 <0.2 <5.0 <10 <1.3 <1.3 <1.3 <1.3 --
15 <0.2 <5.0 <10 <0.9 1.01 <0.9 <0.9 --
20 <0.2 <5.0 <10 <1.2 <1.2 <1.2 <1.2 --
1 <0.2 <5.0 <10 -- -- -- -- 5.51
5 <0.2 <5.0 <10 <0.9 <0.9 <0.9 <0.9 --
10 <0.2 <5.0 <10 <0.9 <0.9 <0.9 <0.9 --
1 <0.2 127 818 -- -- -- -- --
5 <0.2 <5.0 <10 <1 1.39 <1 <1 --
10 <0.2 <5.0 <10 <1 <1 <1 <1 --
1 <0.2 <5.0 <10 <1.1 <1.1 <1.1 <1.1 --
5 <0.2 <5.0 <10 <1 <1 <1 <1 --
10 <0.2 <5.0 <10 <1.1 <1.1 <1.1 <1.1 --
1 <0.2 <5.0 <10 1.48 <1.1 <1.1 <1.1 --
5 <0.2 10.5 41.5 <1 <1 <1 <1 --
10 <0.2 <5.0 <10 -- -- -- -- --
1 <0.2 <5.0 <10 5.99 <1.1 <1.1 <1.1 --
5 <0.2 <5.0 <10 2.69 <1.1 <1.1 <1.1 --
10 <0.2 <5.0 <10 1.75 <1.1 <1.1 <1.1 --
1 <0.2 <5.0 <10 <1 <1 <1 <1 <2.0
5 <0.2 <5.0 <10 <0.9 <0.9 <0.9 <0.9 --
10 <0.2 <5.0 <10 <1.1 <1.1 <1.1 <1.1 --
1 <0.2 <5.0 <10 -- -- -- -- --
5 <0.2 <5.0 <10 6.78 9.00 <1 <1 --
10 <0.2 <5.0 <10 <1 1.48 <1 <1 --
1 <0.2 <5.0 <10 -- -- -- -- --
5 <0.2 <5.0 <10 7.78 16.3 <1.2 <1.2 --
10 <0.2 <5.0 <10 1.27 4.20 <0.9 <0.9 --
1 <0.2 <5.0 <10 -- -- -- -- --
5 <0.2 <5.0 <10 6.54 17.9 <1.2 <1.2 --
10 <0.2 <5.0 <10 1.02 3.89 <1 <1 --
1 <0.2 <5.0 <10 <1.3 <1.3 <1.3 <1.3 --
5 <0.2 <5.0 <10 <1.1 <1.1 <1.1 <1.1 --
10 <0.2 <5.0 <10 <1 <1 <1 <1 --
1 <0.2 <5.0 <10 <1 <1 <1 <1 --
5 <0.2 <5.0 <10 <1 <1 <1 <1 --
10 <0.2 <5.0 <10 <1 <1 <1 <1 --
15 <0.2 <5.0 <10 <1 <1 <1 <1 --
5 <0.2 <5.0 <10 <1 <1 <1 <1 <2.0
10 <0.2 <5.0 <10 <2.2 <2.2 <2.2 <2.2 --
15 <0.2 <5.0 <10 <0.9 <0.9 <0.9 <0.9 --
20 <0.2 <5.0 <10 <1 1.05 <1 <1 --
1 <0.2 <5.0 <10 <1 <1 <1 <1 --
5 <0.2 <5.0 <10 <1 <1 <1 <1 --
10 <0.2 <5.0 <10 <1 <1 <1 <1 --
5 <0.2 <5.0 <10 <1 1.19 <1 <1 --
10 <0.2 <5.0 <10 <0.8 1.29 <0.8 <0.8 --
15 <0.2 <5.0 <10 <1 2.35 <1 <1 --
20 <0.2 <5.0 <10 <1 3.47 <1 <1 --
5 <0.2 <5.0 42.8 8.05 <1 <1 <1 --
10 <0.2 <5.0 <10 10.5 <1 <1 <1 --
15 <0.2 <5.0 <10 3.53 2.86 <1 <1 --
20 <0.2 <5.0 <10 2.29 2.96 <0.9 <0.9 --
1 <0.2 <5.0 <10 <1 <1 <1 <1 --
5 <0.2 <5.0 <10 <1 <1 <1 <1 --
10 <0.2 <5.0 <10 <0.9 <0.9 <0.9 <0.9 --
1 <0.2 <5.0 <10 <1 <1 <1 <1 --
5 <0.2 <5.0 <10 <1 <1 <1 <1 --
10 <0.2 <5.0 <10 <1 <1 <1 <1 --
10 -- -- -- <1 <1 <1 <1 --
20 -- -- -- <1 <1 <1 <1 --
30 -- -- -- <1.4 <1.4 <1.4 <1.4 --
40 -- -- -- 6.14 17.5 <1 1.89 --
50 -- -- -- <1.2 <1.2 <1.2 <1.2 --
60 -- -- -- <1.1 <1.1 <1.1 <1.1 --
70 -- -- -- <1 <1 <1 <1 --
80 -- -- -- <1.1 <1.1 <1.1 <1.1 --
10 -- -- -- <0.9 <0.9 <0.9 <0.9 --
20 -- -- -- <0.9 <0.9 <0.9 <0.9 --
30 -- -- -- <1.1 <1.1 <1.1 <1.1 --
40 -- -- -- <1 2.33 2.57 1.13 --
50 -- -- -- <1.3 <1.3 <1.3 <1.3 --
60 -- -- -- <1 <1 <1 <1 --
70 -- -- -- <1 <1 <1 <1 --
80 -- -- -- <0.9 <0.9 <0.9 <0.9 --
500 1,000 10,000 -- -- -- -- --
-- -- -- 600 940 19 230 2,000
-- -- -- 2,700 6,000 86 1,000 9,300
Notes:

VOCs = Volatile organic compounds
bgs = Below ground surface
-- = Not calculated or analyzed
SB4
SB18
SB10
SB14
SB13
SB12
SB15
March 14, 2017
DTSC-Recommended SL (Commercial/Industrial)
LARWQCB SSLs
Sample Location
Date of Collection
Sample Depth (feet bgs)
SB5
February 17, 2017
SB8
SB6
TABLE 2
DTSC-Recommended SL (Residential)
SB3

SUMMARY OF ANALYTICAL RESULTS FOR SOIL SAMPLES - TPH, VOCS, & OCPS

DOWNEY INDUSTIAL CENTER
9300, 9350, AND 9400 HALL ROAD AND 9301, 9333, AND 9399 STEWART AND GRAY ROAD DOWNEY, CALIFORNIA 90241
SB2
SB19
SB17
micrograms per kilogram (µg/kg), equivalent to parts per billion (ppb) February 14, 2017
SB11
SB9
SB7
SB16
February 17, 2017
milligrams per kilogram (mg/kg),
equivalent to parts per million (ppm)
SB1 February 14, 2017
LARWQCB SSLs = Los Angeles Regional Water Quality Control Board Soil Screening Levels for soils located 20-150 feet above groundwater (Interim Site Assessment and Cleanup Guidebook. May 1996).

DTSC-Recommended SL = Screening Level as recommended in California Department of Toxic Substances Control (DTSC), Office of Human and Ecological Risk (HERO), Human Health Risk Assessment (HHRA) Note No. 3 - Residential and industrial/commercial land use scenarios (June 2016, Referencing U.S. Environmental Protection Agency Regional Screening Level Summary Table - May 2016).

Volatile Organic Compounds (EPA Method 8260B)
SB20 February 14, 2017
GW6
GW7
March 13, 2017
TPH (EPA Method 8015M) Organochlorine Pesticides
(EPA Method 8081A)
Hex Chromium
(EPA Method 7199)
Hexavalent
Chromium
Antimony
Arsenic
Barium
Beryllium
Cadmium
Chromium
Cobalt
Copper
Lead
Mercury
(elemental)
Molybdenum
Nickel
Selenium
Silver
Thallium
Vanadium
Zinc
1 -- <2.0 5.22 143 <1.0 <1.0 21.7 9.60 20.7 4.39 <0.05 <2.0 14.6 <2.0 <1.0 <2.0 40.1 41.4 5 -- <2.0 <2.0 99.9 <1.0 <1.0 25.1 7.87 20.9 7.53 <0.05 <2.0 13.2 <2.0 <1.0 <2.0 31.9 48.5 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 5 -- <2.0 <2.0 90.4 <1.0 <1.0 13.2 7.99 16.2 2.39 <0.05 <2.0 9.02 <2.0 <1.0 <2.0 25.4 39.5 10 -- <2.0 6.52 136 <1.0 <1.0 17.4 10.7 27.9 <2.0 <0.05 <2.0 15.3 <2.0 <1.0 <2.0 35.6 49.6 15 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 20 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 5 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 15 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 20 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 1 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 5 -- <2.0 7.45 59.8 <1.0 <1.0 7.97 4.52 6.46 2.03 <0.05 <2.0 3.43 <2.0 <1.0 <2.0 17.9 19.8 10 -- <2.0 9.41 137 <1.0 <1.0 18.2 10.4 30.5 <2 <0.05 <2.0 16.1 <2.0 <1.0 <2.0 36.8 47.4 1 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 5 -- <2.0 6.02 75.1 <1.0 <1.0 16.9 7.18 13.2 3.34 <0.05 <2.0 10.2 <2.0 <1.0 <2.0 30.7 45.3 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 1 -- <2.0 3.62 96.8 <1.0 <1.0 15.5 9.17 22.1 <2.0 <0.05 <2.0 12.2 <2.0 <1.0 <2.0 32.8 45.1 5 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 1 -- <2.0 8.00 100 <1.0 <1.0 17.3 8.47 21.9 <2.0 <0.05 <2.0 11.6 <2.0 <1.0 <2.0 34.9 42.8 5 -- <2.0 6.22 134 <1.0 <1.0 20.4 11.9 33.0 3.56 <0.05 <2.0 17.1 <2.0 <1.0 <2.0 40.5 56.6 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 1 -- <2.0 4.94 81.7 <1.0 <1.0 12.1 7.18 16.5 3.88 <0.05 <2.0 8.78 <2.0 <1.0 <2.0 26.2 34.0 5 <2.0 <2.0 152 <1.0 <1.0 20.7 12.6 32.5 <2.0 <0.05 <2.0 17.5 <2.0 <1.0 <2.0 42.2 53.7 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
1 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 5 -- <2.0 4.68 123 <1.0 <1.0 18.1 10.3 25.7 <2.0 <0.05 <2.0 13.7 <2.0 <1.0 <2.0 37.1 49.3 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 1 -- <2.0 4.70 284 <1.0 <1.0 20.5 7.69 17.4 3.26 <0.05 <2.0 14.2 <2.0 <1.0 <2.0 39.2 43.9 5 -- <2.0 <2.0 97.6 <1.0 <1.0 17.8 8.21 17.6 2.62 <0.05 <2.0 13.8 <2.0 <1.0 <2.0 31.7 44.2 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 1 -- <2.0 <2.0 60.3 <1.0 <1.0 17.1 6.80 15.3 3.11 <0.05 <2.0 8.29 <2.0 <1.0 <2.0 37.1 41.6 5 -- <2.0 <2.0 119 <1.0 <1.0 21.5 9.81 21.1 4.46 <0.05 <2.0 15.4 <2.0 <1.0 <2.0 34.4 52.3 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 1 -- <2.0 <2.0 62.6 <1.0 <1.0 15.2 6.13 14.5 3.08 <0.05 <2.0 9.21 <2.0 <1.0 <2.0 35.6 37.0 5 -- <2.0 <2.0 114.3 <1.0 <1.0 21.6 9.99 21.4 3.08 <0.05 <2.0 16.2 <2.0 <1.0 <2.0 35.9 52.0 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 1 -- <2.0 <2.0 98.2 <1.0 <1.0 19.5 8.90 17.8 3.90 <0.05 <2.0 14.0 <2.0 <1.0 <2.0 35.8 47.6 5 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 1 0.329 <2.0 7.45 82.7 <1.0 <1.0 16.7 6.46 21.9 3.61 <0.05 <2.0 10.7 <2.0 <1.0 <2.0 29.8 38.9 5 <0.20 <2.0 7.07 143 <1.0 <1.0 24.7 11.3 32.1 3.97 <0.05 <2.0 19.6 <2.0 <1.0 <2.0 41.4 54.3 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 15 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 5 -- <2.0 <2.0 133 <1.0 <1.0 21.4 9.87 27.9 3.62 <0.05 <2.0 17.5 <2.0 <1.0 <2.0 36.1 48.4 10 -- <2.0 6.31 156 <1.0 <1.0 22.3 11.2 29.3 <2.0 <0.05 <2.0 17.6 <2.0 <1.0 <2.0 40.4 54.3 15 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 20 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 1 <0.20 <2.0 <2.0 107 <1.0 <1.0 21.3 8.22 23.7 <2.0 <0.05 <2.0 14.1 <2.0 <1.0 <2.0 35.1 45.3 5 <0.20 <2.0 4.31 172 <1.0 <1.0 25.6 12.3 31.8 3.25 <0.05 <2.0 20.3 <2.0 <1.0 <2.0 40.6 56.2 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 5 -- <2.0 4.36 169 <1.0 <1.0 18.5 7.06 22.9 <2.0 <0.05 <2.0 14.0 <2.0 <1.0 <2.0 35.2 39.9 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 15 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 20 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 5 -- <2.0 33.2 122 <1.0 <1.0 21.5 8.95 24.5 3.88 <0.05 <2.0 15.7 <2.0 <1.0 <2.0 36.3 48.3 10 -- -- 31.2 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 15 -- -- 10.5 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 20 -- -- <2.0 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 1 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 5 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 1 -- <2.0 48.7 107 <1.0 <1.0 20.5 8.00 23.1 3.72 <0.05 <2.0 14.2 <2.0 <1.0 <2.0 33.1 47.1 5 -- <2.0 4.39 181 <1.0 <1.0 25.2 11.1 32.5 <2.0 <0.05 <2.0 21.1 <2.0 <1.0 <2.0 40.3 55.9 10 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 0.15-1.95 0.6-11 133-1,400 0.25-2.7 0.05-1.7 23-1,579 2.7-46.9 9.1-96.4 12.4-97.1 0.1-0.9 0.1-9.6 9-509 0.015-0.430 0.1-8.3 0.17-1.1 39-288 88-236

RSL HERO RSL HERO HERO HERO RSL RSL HERO HERO RSL HERO RSL HERO RSL HERO RSL

0.3 31 0.11 15,000 15 5.2 36,000 23 3,100 80 1.0 390 490 390 390 0.78 390 23,000

6.3 470 0.36 220,000 210 7.3 170,000 350 47,000 320 4.5 5,800 3,100 5,800 1,500 12 1,000 350,000 -- 500 500 10,000 75 100 2,500 8,000 2,500 1,000 20 3,500 2,000 100 500 700 2,400 5,000 -- 15 5 100 0.75 1 5 80 25 5 0.2 350 20 1 5 7 24 250
-- -- 5 100 -- 1 5 -- -- 5 0.2 -- -- 1 5 -- -- --
bgs = below ground surface
** = Values in milligrams per liter (mg/L)
DOWNEY, CALIFORNIA 90241
Notes:
* = Bradford, G.R., Chang, A.C., Page, A.L., Bakhtar, D., Fampton, J.A., and Wright, H., 1996, Background Concentrations of Trace and Major Elements in California Soils, Kearney Foundation of Soil Science Special Report, Division of Agriculture and Natural Resources, University of California.

TTLC = Total Threshold Limit Concentration as identified in Title 22 of the California Code of Regulations. Wastes with concentrations above this value are considered hazardous for the purposes of disposal under California regulations.

STLC = Soluble Threshold Limit Concentration, in mg/L, as identified in Title 22 of the California Code of Regulations. A concentration of ten times the STLC is sometimes used as a trigger to conduct further analysis (i.e., the soluble analysis) of a sample to determine disposal requirements. Wastes with soluble concentrations above this value are considered hazardous for the purposes of disposal under California regulations.

TCLP = Toxicity Characteristic Leaching Procedure concentration, in mg/L, as identified in the Code of Federal Regulations. Wastes with soluble concentrations above this value are considered hazardous for the purposes of disposal under federal regulations.

DTSC-Recommended SL (Commercial/Industrial)
DTSC-Recommended SL (Residential)
TTLC
STLC**
Source
TCLP**
TABLE 3

SUMMARY OF ANALYTICAL RESULTS FOR SOIL SAMPLES - METALS AND HEXAVALENT CHROMIUM

DOWNEY INDUSTIAL CENTER
Title 22 Metals (EPA Method 6010B, except Mercury by EPA Method 7471A) SB5
9300, 9350, AND 9400 HALL ROAD AND 9301, 9333, AND 9399 STEWART AND GRAY ROAD February 17, 2017
DTSC-Recommended SL = Screening Level as recommended in California Department of Toxic Substances Control (DTSC), Office of Human and Ecological Risk (HERO), Human Health Risk Assessment (HHRA) Note No. 3 - Residential and industrial/commercial land use scenarios (June 2016 Referencing U.S. Environmental Protection Agency Regional Screening Level Summary Table - May 2016).

Typical Range for CA Soils*
Sample Number
(or Boring ID)
Sample Depth
(feet bgs) Sampling Date
SB1 February 14, 2017
SB2
SB3
SB4
SB6
SB7
SB8
SB9
SB10
February 14, 2017
SB11
SB12
SB13
Milligrams per kilogram (mg/kg), equivalent to parts per million (ppm) SB14
February 14, 2017
SB15
SB16
SB17
SB18
SB19
SB20
February 17, 2017
Trichloroethene
(TCE)
cis-1,2-Dichloroethene
(cis-1,2-DCE)
1,1-Dichloroethane
(1,1-DCA)
1,1-Dichloroethene
(1,1-DCE)
trans-1,2-
Dichloroethene
(trans-1,2-DCE)
Methyl tert-butyl ether
(MTBE)
GW1 2/14/2017 <1 <1 <1 <1 <1 <1
GW2 2/13/2017 23.6 5.47 1.05 1.64 <1 <1
GW3 2/15/2017 1.34 2.50 <1 <1 <1 <1
GW4 2/13/2017 68.9 20.5 4.47 4.77 1.63 <1
GW5 2/14/2017 7.00 3.27 3.54 <1 <1 <1
GW6 3/13/2017 5.79 3.62 <1 <1 <1 <1
GW7 3/14/2017 5.51 2.69 1.38 1.12 <1 <1
GW8 3/13/2017 <1 <1 <1 <1 <1 3.37

5.0 6.0 5.0 6.0 10 13
Notes:
* = Volatile organic compounds (note: only constituents detected above method limits listed) µg/L = micrograms per liter; equivalent to parts per billion MCL = Maximum Contaminant Level

SUMMARY OF ANALYTICAL RESULTS FOR GRAB GROUNDWATER SAMPLES

VOLATILE ORGANIC COMPOUNDS

DOWNEY INDUSTRIAL CENTER
MCL
TABLE 4
9300, 9350, AND 9400 HALL ROAD AND 9301, 9333, AND 9399 STEWART AND GRAY ROAD Sample Location
Date of Collection
VOCs* (EPA Method 8260B)
µg/L
P r o l o g i s – D o w n e y I n d u s t r i a l C e n t e r P h a s e I I I n v e s t i g a t i o n

A P P E N D I X A

H & P L A B O R A T O R Y R E P O R T AN D C H A I N- OF - C U S T O D Y

D O C U M E N T A T I O N

SCS Engineers - Long Beach
Long Beach, CA 90806-6816
3900 Kilroy Airport Way, Suite 100
Ms. Ashley Hutchens
Enclosed is the analytical report for the above referenced project. The data herein applies to samples as received by H
&
P Mobile Geochemistry
, Inc. on
2/14/2017 -2/17/2017 which were
analyzed in accordance with the attached Chain of Custody record(s) .

The results for all sample analyses and required QA/QC analyses are presented in the following sections and summarized in the documents:
•
Sample Summary
•
Case Narrative (if applicable)
•
Sample Results
•
Quality Control Summary
•
Notes and Definitions / Appendix
•
Chain of Custody
•
Sampling Logs (if applicable)
Unless otherwise noted, I certify that all analyses were performed and reviewed in compliance with our Quality Systems Manual and Standard Operating Procedures. This report shall not be reproduced, except in full, without the written approval of H &
P Mobile Geochemistry
, Inc.

We at H
&
P Mobile Geochemistry
, Inc. sincerely appreciate the opportunity to provide analytical services to you on this project. If you have any questions or concerns regarding this analytical report, please contact me at your convenience at 760-804-9678.

Sincerely,
23 February 2017
Janis La Roux
Laboratory Director
H
&
P Mobile Geochemistry
, Inc. is certified under the California ELAP, the National Environmental Laboratory Accreditation Conference
(NELAC)
and the Department of Defense Accreditation Programs
.

Client Project: 01216368.03 / Downey
H&P Project: SCS021417-L6
Dear Ms. Ashley Hutchens:

1.800.834.9888 / 760.804.9678
F
760.804.9159
W
handpmg.com
2470 Impala Drive, Carlsbad, CA 92010
&
Field Office - Signal Hill, CA
Quality. Accuracy. Experience.

Geochemistry Inc.

Mobile

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