Cities Index.
CC 07-02-2024 Searchable Packet.pdf

Cupertino City Council
July 2, 2024

Document
CC 07-02-2024 Searchable Packet.pdf
Meeting
July 2, 2024
Body
Cupertino City Council
Pages
160
Original file
136.9 MB
Text extracted from the city's file for reading and search. Open the original on cupertino.legistar.com. That file is the official record.

Date of Government Version: 10/12/2016
Date Data Arrived at EDR: 10/26/2016
Date Made Active in Reports: 02/03/2017
Number of Days to Update: 100
Source: EPA
Telephone: 202-564-2496
Last EDR Contact: 09/26/2017
Next Scheduled EDR Contact: 01/08/2018
Data Release Frequency: Annually
MINES VIOLATIONS: MSHA Violation Assessment Data
Mines violation and assessment information. Department of Labor, Mine Safety & Health Administration.

Date of Government Version: 06/30/2021
Date Data Arrived at EDR: 07/01/2021
Date Made Active in Reports: 09/28/2021
Number of Days to Update: 89
Source: DOL, Mine Safety & Health Admi
Telephone: 202-693-9424
Last EDR Contact: 12/20/2021
Next Scheduled EDR Contact: 03/14/2022
Data Release Frequency: Quarterly
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.

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Date of Government Version: 08/09/2021
Date Data Arrived at EDR: 08/24/2021
Date Made Active in Reports: 11/19/2021
Number of Days to Update: 87
Source: Department of Labor, Mine Safety and Health Administration Telephone: 303-231-5959
Last EDR Contact: 11/22/2021
Next Scheduled EDR Contact: 03/07/2022
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.

Date of Government Version: 05/06/2020
Date Data Arrived at EDR: 05/27/2020
Date Made Active in Reports: 08/13/2020
Number of Days to Update: 78
Source: USGS
Telephone: 703-648-7709
Last EDR Contact: 11/22/2021
Next Scheduled EDR Contact: 03/07/2022
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: 11/22/2021
Next Scheduled EDR Contact: 03/07/2022
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: 09/14/2021
Date Data Arrived at EDR: 09/15/2021
Date Made Active in Reports: 12/15/2021
Number of Days to Update: 91
Source: Department of Interior
Telephone: 202-208-2609
Last EDR Contact: 12/14/2021
Next Scheduled EDR Contact: 03/21/2022
Data Release Frequency: Quarterly
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: 05/05/2021
Date Data Arrived at EDR: 05/18/2021
Date Made Active in Reports: 08/17/2021
Number of Days to Update: 91
Source: EPA
Telephone: (415) 947-8000
Last EDR Contact: 11/22/2021
Next Scheduled EDR Contact: 03/14/2022
Data Release Frequency: Quarterly
DOCKET HWC: Hazardous Waste Compliance Docket Listing
A complete list of the Federal Agency Hazardous Waste Compliance Docket Facilities.

Date of Government Version: 05/06/2021
Date Data Arrived at EDR: 05/21/2021
Date Made Active in Reports: 08/11/2021
Number of Days to Update: 82
Source: Environmental Protection Agency
Telephone: 202-564-0527
Last EDR Contact: 11/23/2021
Next Scheduled EDR Contact: 03/07/2022
Data Release Frequency: Varies
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ECHO: Enforcement & Compliance History Information
ECHO provides integrated compliance and enforcement information for about 800,000 regulated facilities nationwide.

Date of Government Version: 01/01/2022
Date Data Arrived at EDR: 01/04/2022
Date Made Active in Reports: 01/10/2022
Number of Days to Update: 6
Source: Environmental Protection Agency
Telephone: 202-564-2280
Last EDR Contact: 01/04/2022
Next Scheduled EDR Contact: 04/18/2022
Data Release Frequency: Quarterly
UXO: Unexploded Ordnance Sites
A listing of unexploded ordnance site locations
Date of Government Version: 12/31/2018
Date Data Arrived at EDR: 07/02/2020
Date Made Active in Reports: 09/17/2020
Number of Days to Update: 77
Source: Department of Defense
Telephone: 703-704-1564
Last EDR Contact: 01/11/2022
Next Scheduled EDR Contact: 04/25/2022
Data Release Frequency: Varies
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: 08/13/2021
Date Data Arrived at EDR: 08/13/2021
Date Made Active in Reports: 10/22/2021
Number of Days to Update: 70
Source: EPA
Telephone: 800-385-6164
Last EDR Contact: 11/15/2021
Next Scheduled EDR Contact: 02/28/2022
Data Release Frequency: Quarterly
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).

Date of Government Version: 09/20/2021
Date Data Arrived at EDR: 09/21/2021
Date Made Active in Reports: 12/08/2021
Number of Days to Update: 78
Source: CAL EPA/Office of Emergency Information
Telephone: 916-323-3400
Last EDR Contact: 12/16/2021
Next Scheduled EDR Contact: 04/04/2022
Data Release Frequency: Quarterly
CUPA LIVERMORE-PLEASANTON: CUPA Facility Listing
list of facilities associated with the various CUPA programs in Livermore-Pleasanton Date of Government Version: 05/01/2019
Date Data Arrived at EDR: 05/14/2019
Date Made Active in Reports: 07/17/2019
Number of Days to Update: 64
Source: Livermore-Pleasanton Fire Department
Telephone: 925-454-2361
Last EDR Contact: 11/19/2021
Next Scheduled EDR Contact: 02/21/2022
Data Release Frequency: Varies
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.

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Date of Government Version: 08/27/2021
Date Data Arrived at EDR: 09/01/2021
Date Made Active in Reports: 11/19/2021
Number of Days to Update: 79
Source: Department of Toxic Substance Control
Telephone: 916-327-4498
Last EDR Contact: 01/24/2022
Next Scheduled EDR Contact: 03/14/2022
Data Release Frequency: Annually
DRYCLEAN SOUTH COAST: South Coast Air Quality Management District Drycleaner Listing A listing of dry cleaners in the South Coast Air Quality Management District Date of Government Version: 08/18/2021
Date Data Arrived at EDR: 08/23/2021
Date Made Active in Reports: 11/12/2021
Number of Days to Update: 81
Source: South Coast Air Quality Management District
Telephone: 909-396-3211
Last EDR Contact: 11/16/2021
Next Scheduled EDR Contact: 03/07/2022
Data Release Frequency: Varies
DRYCLEAN AVAQMD: Antelope Valley Air Quality Management District Drycleaner Listing A listing of dry cleaners in the Antelope Valley Air Quality Management District.

Date of Government Version: 08/24/2021
Date Data Arrived at EDR: 08/25/2021
Date Made Active in Reports: 11/17/2021
Number of Days to Update: 84
Source: Antelope Valley Air Quality Management District Telephone: 661-723-8070
Last EDR Contact: 11/23/2021
Next Scheduled EDR Contact: 03/14/2022
Data Release Frequency: Varies
EMI: Emissions Inventory Data
Toxics and criteria pollutant emissions data collected by the ARB and local air pollution agencies.

Date of Government Version: 12/31/2019
Date Data Arrived at EDR: 06/10/2021
Date Made Active in Reports: 08/27/2021
Number of Days to Update: 78
Source: California Air Resources Board
Telephone: 916-322-2990
Last EDR Contact: 12/17/2021
Next Scheduled EDR Contact: 03/28/2022
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: 04/16/2021
Date Data Arrived at EDR: 04/20/2021
Date Made Active in Reports: 07/07/2021
Number of Days to Update: 78
Source: State Water Resoruces Control Board
Telephone: 916-445-9379
Last EDR Contact: 01/28/2022
Next Scheduled EDR Contact: 05/02/2022
Data Release Frequency: Varies
Financial Assurance 1: Financial Assurance Information Listing Financial Assurance information
Date of Government Version: 10/05/2021
Date Data Arrived at EDR: 10/06/2021
Date Made Active in Reports: 12/29/2021
Number of Days to Update: 84
Source: Department of Toxic Substances Control
Telephone: 916-255-3628
Last EDR Contact: 01/13/2022
Next Scheduled EDR Contact: 05/02/2022
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: 08/13/2021
Date Data Arrived at EDR: 08/13/2021
Date Made Active in Reports: 11/05/2021
Number of Days to Update: 84
Source: California Integrated Waste Management Board
Telephone: 916-341-6066
Last EDR Contact: 11/16/2021
Next Scheduled EDR Contact: 02/21/2022
Data Release Frequency: Varies
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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.

Date of Government Version: 12/31/2019
Date Data Arrived at EDR: 04/15/2020
Date Made Active in Reports: 07/02/2020
Number of Days to Update: 78
Source: California Environmental Protection Agency
Telephone: 916-255-1136
Last EDR Contact: 01/07/2022
Next Scheduled EDR Contact: 04/18/2022
Data Release Frequency: Annually
ICE: ICE
Contains data pertaining to the Permitted Facilities with Inspections / Enforcements sites tracked in Envirostor.

Date of Government Version: 08/13/2021
Date Data Arrived at EDR: 08/13/2021
Date Made Active in Reports: 11/08/2021
Number of Days to Update: 87
Source: Department of Toxic Subsances Control
Telephone: 877-786-9427
Last EDR Contact: 11/15/2021
Next Scheduled EDR Contact: 02/28/2022
Data Release Frequency: Quarterly
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: 08/13/2021
Date Data Arrived at EDR: 08/13/2021
Date Made Active in Reports: 11/08/2021
Number of Days to Update: 87
Source: Department of Toxic Substances Control
Telephone: 916-323-3400
Last EDR Contact: 11/15/2021
Next Scheduled EDR Contact: 02/28/2022
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: 10/04/2021
Date Data Arrived at EDR: 10/05/2021
Date Made Active in Reports: 12/22/2021
Number of Days to Update: 78
Source: Department of Toxic Substances Control
Telephone: 916-440-7145
Last EDR Contact: 01/04/2022
Next Scheduled EDR Contact: 04/18/2022
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: 09/07/2021
Date Data Arrived at EDR: 09/07/2021
Date Made Active in Reports: 11/29/2021
Number of Days to Update: 83
Source: Department of Conservation
Telephone: 916-322-1080
Last EDR Contact: 12/07/2021
Next Scheduled EDR Contact: 03/21/2022
Data Release Frequency: Quarterly
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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: 08/05/2021
Date Data Arrived at EDR: 08/31/2021
Date Made Active in Reports: 11/19/2021
Number of Days to Update: 80
Source: Department of Public Health
Telephone: 916-558-1784
Last EDR Contact: 11/30/2021
Next Scheduled EDR Contact: 03/14/2022
Data Release Frequency: Varies
NPDES: NPDES Permits Listing
A listing of NPDES permits, including stormwater.

Date of Government Version: 11/09/2021
Date Data Arrived at EDR: 11/09/2021
Date Made Active in Reports: 01/27/2022
Number of Days to Update: 79
Source: State Water Resources Control Board
Telephone: 916-445-9379
Last EDR Contact: 11/09/2021
Next Scheduled EDR Contact: 02/21/2022
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: 08/30/2021
Date Data Arrived at EDR: 08/31/2021
Date Made Active in Reports: 11/19/2021
Number of Days to Update: 80
Source: Department of Pesticide Regulation
Telephone: 916-445-4038
Last EDR Contact: 11/30/2021
Next Scheduled EDR Contact: 03/14/2022
Data Release Frequency: Quarterly
PROC: Certified Processors Database
A listing of certified processors.

Date of Government Version: 06/04/2021
Date Data Arrived at EDR: 06/04/2021
Date Made Active in Reports: 08/27/2021
Number of Days to Update: 84
Source: Department of Conservation
Telephone: 916-323-3836
Last EDR Contact: 11/29/2021
Next Scheduled EDR Contact: 03/21/2022
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: 03/12/2021
Date Data Arrived at EDR: 03/16/2021
Date Made Active in Reports: 06/01/2021
Number of Days to Update: 77
Source: State Water Resources Control Board
Telephone: 916-445-3846
Last EDR Contact: 12/08/2021
Next Scheduled EDR Contact: 03/28/2022
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: 06/03/2021
Date Data Arrived at EDR: 06/03/2021
Date Made Active in Reports: 08/25/2021
Number of Days to Update: 83
Source: Deaprtment of Conservation
Telephone: 916-445-2408
Last EDR Contact: 12/07/2021
Next Scheduled EDR Contact: 03/21/2022
Data Release Frequency: Varies
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UIC GEO: Underground Injection Control Sites (GEOTRACKER) Underground control injection sites
Date of Government Version: 09/07/2021
Date Data Arrived at EDR: 09/07/2021
Date Made Active in Reports: 11/29/2021
Number of Days to Update: 83
Source: State Water Resource Control Board
Telephone: 866-480-1028
Last EDR Contact: 12/07/2021
Next Scheduled EDR Contact: 03/21/2022
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 boards review found that more than one-third of the region’s active disposal pits are operating without permission.

Date of Government Version: 02/11/2021
Date Data Arrived at EDR: 07/01/2021
Date Made Active in Reports: 09/29/2021
Number of Days to Update: 90
Source: RWQCB, Central Valley Region
Telephone: 559-445-5577
Last EDR Contact: 01/07/2022
Next Scheduled EDR Contact: 04/18/2022
Data Release Frequency: Varies
WDS: Waste Discharge System
Sites which have been issued waste discharge requirements.

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: 11/15/2021
Next Scheduled EDR Contact: 02/28/2022
Data Release Frequency: No Update Planned
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: 12/14/2021
Next Scheduled EDR Contact: 04/04/2022
Data Release Frequency: No Update Planned
MILITARY PRIV SITES: Military Privatized Sites (GEOTRACKER) Military privatized sites
Date of Government Version: 09/07/2021
Date Data Arrived at EDR: 09/07/2021
Date Made Active in Reports: 11/29/2021
Number of Days to Update: 83
Source: State Water Resources Control Board
Telephone: 866-480-1028
Last EDR Contact: 12/07/2021
Next Scheduled EDR Contact: 03/21/2022
Data Release Frequency: Varies
PROJECT: Project Sites (GEOTRACKER)
Projects sites
Date of Government Version: 09/07/2021
Date Data Arrived at EDR: 09/07/2021
Date Made Active in Reports: 11/29/2021
Number of Days to Update: 83
Source: State Water Resources Control Board
Telephone: 866-480-1028
Last EDR Contact: 12/07/2021
Next Scheduled EDR Contact: 03/21/2022
Data Release Frequency: Varies
WDR: Waste Discharge Requirements Listing
In general, the Waste Discharge Requirements (WDRs) Program (sometimes also referred to as the "Non Chapter 15 (Non 15) Program") regulates point discharges that are exempt pursuant to Subsection 20090 of Title 27 and not subject to the Federal Water Pollution Control Act. Exemptions from Title 27 may be granted for nine categories of discharges (e.g., sewage, wastewater, etc.) that meet, and continue to meet, the preconditions listed for each specific exemption. The scope of the WDRs Program also includes the discharge of wastes classified as inert, pursuant to section 20230 of Title 27.

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Date of Government Version: 09/07/2021
Date Data Arrived at EDR: 09/08/2021
Date Made Active in Reports: 12/01/2021
Number of Days to Update: 84
Source: State Water Resources Control Board
Telephone: 916-341-5810
Last EDR Contact: 12/07/2021
Next Scheduled EDR Contact: 03/21/2022
Data Release Frequency: Quarterly
CIWQS: California Integrated Water Quality System
The California Integrated Water Quality System (CIWQS) is a computer system used by the State and Regional Water Quality Control Boards to track information about places of environmental interest, manage permits and other orders, track inspections, and manage violations and enforcement activities.

Date of Government Version: 08/30/2021
Date Data Arrived at EDR: 08/31/2021
Date Made Active in Reports: 11/19/2021
Number of Days to Update: 80
Source: State Water Resources Control Board
Telephone: 866-794-4977
Last EDR Contact: 11/30/2021
Next Scheduled EDR Contact: 03/14/2022
Data Release Frequency: Varies
CERS: CalEPA Regulated Site Portal Data
The CalEPA Regulated Site Portal database combines data about environmentally regulated sites and facilities in California into a single database. It combines data from a variety of state and federal databases, and provides an overview of regulated activities across the spectrum of environmental programs for any given location in California.

These activities include hazardous materials and waste, state and federal cleanups, impacted ground and surface waters, and toxic materials
Date of Government Version: 10/18/2021
Date Data Arrived at EDR: 10/19/2021
Date Made Active in Reports: 01/12/2022
Number of Days to Update: 85
Source: California Environmental Protection Agency
Telephone: 916-323-2514
Last EDR Contact: 01/19/2022
Next Scheduled EDR Contact: 05/02/2022
Data Release Frequency: Varies
NON-CASE INFO: Non-Case Information Sites (GEOTRACKER)
Non-Case Information sites
Date of Government Version: 09/07/2021
Date Data Arrived at EDR: 09/07/2021
Date Made Active in Reports: 11/29/2021
Number of Days to Update: 83
Source: State Water Resources Control Board
Telephone: 866-480-1028
Last EDR Contact: 12/07/2021
Next Scheduled EDR Contact: 03/21/2022
Data Release Frequency: Varies
OTHER OIL GAS: Other Oil & Gas Projects Sites (GEOTRACKER) Other Oil & Gas Projects sites
Date of Government Version: 09/07/2021
Date Data Arrived at EDR: 09/07/2021
Date Made Active in Reports: 11/29/2021
Number of Days to Update: 83
Source: State Water Resources Control Board
Telephone: 866-480-1028
Last EDR Contact: 12/07/2021
Next Scheduled EDR Contact: 03/21/2022
Data Release Frequency: Varies
PROD WATER PONDS: Produced Water Ponds Sites (GEOTRACKER) Produced water ponds sites
Date of Government Version: 09/07/2021
Date Data Arrived at EDR: 09/07/2021
Date Made Active in Reports: 11/29/2021
Number of Days to Update: 83
Source: State Water Resources Control Board
Telephone: 866-480-1028
Last EDR Contact: 12/07/2021
Next Scheduled EDR Contact: 03/21/2022
Data Release Frequency: Varies
SAMPLING POINT: Sampling Point ? Public Sites (GEOTRACKER) Sampling point - public sites
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Date of Government Version: 09/07/2021
Date Data Arrived at EDR: 09/07/2021
Date Made Active in Reports: 11/29/2021
Number of Days to Update: 83
Source: State Water Resources Control Board
Telephone: 866-480-1028
Last EDR Contact: 12/07/2021
Next Scheduled EDR Contact: 03/21/2022
Data Release Frequency: Varies
WELL STIM PROJ: Well Stimulation Project (GEOTRACKER)
Includes areas of groundwater monitoring plans, a depiction of the monitoring network, and the facilities, boundaries, and subsurface characteristics of the oilfield and the features (oil and gas wells, produced water ponds, UIC wells, water supply wells, etc?) being monitored
Date of Government Version: 09/07/2021
Date Data Arrived at EDR: 09/07/2021
Date Made Active in Reports: 11/29/2021
Number of Days to Update: 83
Source: State Water Resources Control Board
Telephone: 866-480-1028
Last EDR Contact: 12/07/2021
Next Scheduled EDR Contact: 03/21/2022
Data Release Frequency: Varies
PCS INACTIVE: Listing of Inactive PCS Permits
An inactive permit is a facility that has shut down or is no longer discharging.

Date of Government Version: 11/05/2014
Date Data Arrived at EDR: 01/06/2015
Date Made Active in Reports: 05/06/2015
Number of Days to Update: 120
Source: EPA
Telephone: 202-564-2496
Last EDR Contact: 12/29/2021
Next Scheduled EDR Contact: 04/18/2022
Data Release Frequency: Semi-Annually
PCS: Permit Compliance System
PCS is a computerized management information system that contains data on National Pollutant Discharge Elimination System (NPDES) permit holding facilities. PCS tracks the permit, compliance, and enforcement status of NPDES facilities.

Date of Government Version: 07/14/2011
Date Data Arrived at EDR: 08/05/2011
Date Made Active in Reports: 09/29/2011
Number of Days to Update: 55
Source: EPA, Office of Water
Telephone: 202-564-2496
Last EDR Contact: 12/29/2021
Next Scheduled EDR Contact: 04/18/2022
Data Release Frequency: Semi-Annually
PCS ENF: Enforcement data
No description is available for this data
Date of Government Version: 12/31/2014
Date Data Arrived at EDR: 02/05/2015
Date Made Active in Reports: 03/06/2015
Number of Days to Update: 29
Source: EPA
Telephone: 202-564-2497
Last EDR Contact: 12/29/2021
Next Scheduled EDR Contact: 04/18/2022
Data Release Frequency: Varies
HWTS: Hazardous Waste Tracking System
DTSC maintains the Hazardous Waste Tracking System that stores ID number information since the early 1980s and manifest data since 1993. The system collects both manifest copies from the generator and destination facility.

Date of Government Version: 07/13/2021
Date Data Arrived at EDR: 07/14/2021
Date Made Active in Reports: 10/06/2021
Number of Days to Update: 84
Source: Department of Toxic Substances Control
Telephone: 916-324-2444
Last EDR Contact: 01/28/2022
Next Scheduled EDR Contact: 04/18/2022
Data Release Frequency: Varies
MINES MRDS: Mineral Resources Data System
Mineral Resources Data System
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Date of Government Version: 04/06/2018
Date Data Arrived at EDR: 10/21/2019
Date Made Active in Reports: 10/24/2019
Number of Days to Update: 3
Source: USGS
Telephone: 703-648-6533
Last EDR Contact: 11/23/2021
Next Scheduled EDR Contact: 03/07/2022
Data Release Frequency: Varies

EDR HIGH RISK HISTORICAL RECORDS
EDR Exclusive Records
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 Historical Auto 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 Historical 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
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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
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:

CS ALAMEDA: 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: 01/09/2019
Date Data Arrived at EDR: 01/11/2019
Date Made Active in Reports: 03/05/2019
Number of Days to Update: 53
Source: Alameda County Environmental Health Services
Telephone: 510-567-6700
Last EDR Contact: 12/28/2021
Next Scheduled EDR Contact: 04/18/2022
Data Release Frequency: Semi-Annually
UST ALAMEDA: Underground Tanks
Underground storage tank sites located in Alameda county.

Date of Government Version: 09/30/2021
Date Data Arrived at EDR: 10/01/2021
Date Made Active in Reports: 12/15/2021
Number of Days to Update: 75
Source: Alameda County Environmental Health Services
Telephone: 510-567-6700
Last EDR Contact: 12/28/2021
Next Scheduled EDR Contact: 04/18/2022
Data Release Frequency: Semi-Annually
AMADOR COUNTY:

CUPA AMADOR: CUPA Facility List
Cupa Facility List
Date of Government Version: 11/01/2021
Date Data Arrived at EDR: 11/02/2021
Date Made Active in Reports: 01/24/2022
Number of Days to Update: 83
Source: Amador County Environmental Health
Telephone: 209-223-6439
Last EDR Contact: 01/28/2022
Next Scheduled EDR Contact: 05/16/2022
Data Release Frequency: Varies
BUTTE COUNTY:

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CUPA BUTTE: CUPA Facility Listing
Cupa facility list.

Date of Government Version: 04/21/2017
Date Data Arrived at EDR: 04/25/2017
Date Made Active in Reports: 08/09/2017
Number of Days to Update: 106
Source: Public Health Department
Telephone: 530-538-7149
Last EDR Contact: 12/28/2021
Next Scheduled EDR Contact: 04/18/2022
Data Release Frequency: No Update Planned
CALVERAS COUNTY:

CUPA CALVERAS: CUPA Facility Listing
Cupa Facility Listing
Date of Government Version: 09/15/2021
Date Data Arrived at EDR: 09/16/2021
Date Made Active in Reports: 12/09/2021
Number of Days to Update: 84
Source: Calveras County Environmental Health
Telephone: 209-754-6399
Last EDR Contact: 12/28/2021
Next Scheduled EDR Contact: 04/04/2022
Data Release Frequency: Quarterly
COLUSA COUNTY:

CUPA COLUSA: CUPA Facility List
Cupa facility list.

Date of Government Version: 04/06/2020
Date Data Arrived at EDR: 04/23/2020
Date Made Active in Reports: 07/10/2020
Number of Days to Update: 78
Source: Health & Human Services
Telephone: 530-458-0396
Last EDR Contact: 01/28/2022
Next Scheduled EDR Contact: 05/16/2022
Data Release Frequency: Semi-Annually
CONTRA COSTA COUNTY:

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

Date of Government Version: 10/22/2021
Date Data Arrived at EDR: 10/26/2021
Date Made Active in Reports: 01/19/2022
Number of Days to Update: 85
Source: Contra Costa Health Services Department
Telephone: 925-646-2286
Last EDR Contact: 01/24/2022
Next Scheduled EDR Contact: 05/09/2022
Data Release Frequency: Semi-Annually
DEL NORTE COUNTY:

CUPA DEL NORTE: CUPA Facility List
Cupa Facility list
Date of Government Version: 10/01/2021
Date Data Arrived at EDR: 11/02/2021
Date Made Active in Reports: 01/24/2022
Number of Days to Update: 83
Source: Del Norte County Environmental Health Division
Telephone: 707-465-0426
Last EDR Contact: 01/24/2022
Next Scheduled EDR Contact: 05/09/2022
Data Release Frequency: Varies
EL DORADO COUNTY:

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CUPA EL DORADO: CUPA Facility List
CUPA facility list.

Date of Government Version: 07/30/2021
Date Data Arrived at EDR: 08/03/2021
Date Made Active in Reports: 10/26/2021
Number of Days to Update: 84
Source: El Dorado County Environmental Management Department Telephone: 530-621-6623
Last EDR Contact: 01/24/2022
Next Scheduled EDR Contact: 05/09/2022
Data Release Frequency: Varies
FRESNO COUNTY:

CUPA FRESNO: 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: 04/09/2021
Date Data Arrived at EDR: 06/23/2021
Date Made Active in Reports: 09/17/2021
Number of Days to Update: 86
Source: Dept. of Community Health
Telephone: 559-445-3271
Last EDR Contact: 12/21/2021
Next Scheduled EDR Contact: 04/11/2022
Data Release Frequency: Semi-Annually
GLENN COUNTY:

CUPA GLENN: CUPA Facility List
Cupa facility list
Date of Government Version: 01/22/2018
Date Data Arrived at EDR: 01/24/2018
Date Made Active in Reports: 03/14/2018
Number of Days to Update: 49
Source: Glenn County Air Pollution Control District
Telephone: 830-934-6500
Last EDR Contact: 01/13/2022
Next Scheduled EDR Contact: 05/02/2022
Data Release Frequency: No Update Planned
HUMBOLDT COUNTY:

CUPA HUMBOLDT: CUPA Facility List
CUPA facility list.

Date of Government Version: 08/12/2021
Date Data Arrived at EDR: 08/12/2021
Date Made Active in Reports: 11/08/2021
Number of Days to Update: 88
Source: Humboldt County Environmental Health
Telephone: N/A
Last EDR Contact: 11/11/2021
Next Scheduled EDR Contact: 02/28/2022
Data Release Frequency: Semi-Annually
IMPERIAL COUNTY:

CUPA IMPERIAL: CUPA Facility List
Cupa facility list.

Date of Government Version: 10/18/2021
Date Data Arrived at EDR: 10/20/2021
Date Made Active in Reports: 01/12/2022
Number of Days to Update: 84
Source: San Diego Border Field Office
Telephone: 760-339-2777
Last EDR Contact: 01/13/2022
Next Scheduled EDR Contact: 05/02/2022
Data Release Frequency: Varies
INYO COUNTY:

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CUPA INYO: CUPA Facility List
Cupa facility list.

Date of Government Version: 04/02/2018
Date Data Arrived at EDR: 04/03/2018
Date Made Active in Reports: 06/14/2018
Number of Days to Update: 72
Source: Inyo County Environmental Health Services
Telephone: 760-878-0238
Last EDR Contact: 11/11/2021
Next Scheduled EDR Contact: 02/28/2022
Data Release Frequency: Varies
KERN COUNTY:

CUPA KERN: CUPA Facility List
A listing of sites included in the Kern County Hazardous Material Business Plan.

Date of Government Version: 07/06/2021
Date Data Arrived at EDR: 08/12/2021
Date Made Active in Reports: 10/07/2021
Number of Days to Update: 56
Source: Kern County Public Health
Telephone: 661-321-3000
Last EDR Contact: 01/28/2022
Next Scheduled EDR Contact: 05/16/2022
Data Release Frequency: Varies
UST KERN: Underground Storage Tank Sites & Tank Listing Kern County Sites and Tanks Listing.

Date of Government Version: 07/06/2021
Date Data Arrived at EDR: 08/12/2021
Date Made Active in Reports: 08/18/2021
Number of Days to Update: 6
Source: Kern County Environment Health Services Department Telephone: 661-862-8700
Last EDR Contact: 01/28/2022
Next Scheduled EDR Contact: 05/16/2022
Data Release Frequency: Quarterly
KINGS COUNTY:

CUPA KINGS: 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: 12/03/2020
Date Data Arrived at EDR: 01/26/2021
Date Made Active in Reports: 04/14/2021
Number of Days to Update: 78
Source: Kings County Department of Public Health
Telephone: 559-584-1411
Last EDR Contact: 12/22/2021
Next Scheduled EDR Contact: 02/28/2022
Data Release Frequency: Varies
LAKE COUNTY:

CUPA LAKE: CUPA Facility List
Cupa facility list
Date of Government Version: 11/04/2021
Date Data Arrived at EDR: 11/05/2021
Date Made Active in Reports: 01/24/2022
Number of Days to Update: 80
Source: Lake County Environmental Health
Telephone: 707-263-1164
Last EDR Contact: 01/10/2022
Next Scheduled EDR Contact: 04/25/2022
Data Release Frequency: Varies
LASSEN COUNTY:

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CUPA LASSEN: CUPA Facility List
Cupa facility list
Date of Government Version: 07/31/2020
Date Data Arrived at EDR: 08/21/2020
Date Made Active in Reports: 11/09/2020
Number of Days to Update: 80
Source: Lassen County Environmental Health
Telephone: 530-251-8528
Last EDR Contact: 01/13/2022
Next Scheduled EDR Contact: 05/02/2022
Data Release Frequency: Varies
LOS ANGELES COUNTY:

AOCONCERN: Key Areas of Concerns in Los Angeles County
San Gabriel Valley areas where VOC contamination is at or above the MCL as designated by region 9 EPA office. Date of Government Version: 3/30/2009 Exide Site area is a cleanup plan of lead-impacted soil surrounding the former Exide Facility as designated by the DTSC. Date of Government Version: 7/17/2017 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: N/A
Telephone: N/A
Last EDR Contact: 12/08/2021
Next Scheduled EDR Contact: 03/28/2022
Data Release Frequency: No Update Planned
HMS LOS ANGELES: HMS: Street Number List
Industrial Waste and Underground Storage Tank Sites.

Date of Government Version: 10/14/2021
Date Data Arrived at EDR: 10/19/2021
Date Made Active in Reports: 01/13/2022
Number of Days to Update: 86
Source: Department of Public Works
Telephone: 626-458-3517
Last EDR Contact: 01/13/2022
Next Scheduled EDR Contact: 04/18/2022
Data Release Frequency: Semi-Annually
LF LOS ANGELES: List of Solid Waste Facilities
Solid Waste Facilities in Los Angeles County.

Date of Government Version: 10/08/2021
Date Data Arrived at EDR: 10/08/2021
Date Made Active in Reports: 12/29/2021
Number of Days to Update: 82
Source: La County Department of Public Works
Telephone: 818-458-5185
Last EDR Contact: 01/11/2022
Next Scheduled EDR Contact: 04/25/2022
Data Release Frequency: Varies
LF LOS ANGELES CITY: City of Los Angeles Landfills
Landfills owned and maintained by the City of Los Angeles.

Date of Government Version: 01/01/2021
Date Data Arrived at EDR: 02/18/2021
Date Made Active in Reports: 05/10/2021
Number of Days to Update: 81
Source: Engineering & Construction Division
Telephone: 213-473-7869
Last EDR Contact: 01/07/2022
Next Scheduled EDR Contact: 04/25/2022
Data Release Frequency: Varies
LOS ANGELES AST: Active & Inactive AST Inventory
A listing of active & inactive above ground petroleum storage tank site locations, located in the City of Los Angeles.

Date of Government Version: 06/01/2019
Date Data Arrived at EDR: 06/25/2019
Date Made Active in Reports: 08/22/2019
Number of Days to Update: 58
Source: Los Angeles Fire Department
Telephone: 213-978-3800
Last EDR Contact: 12/16/2021
Next Scheduled EDR Contact: 04/04/2022
Data Release Frequency: Varies
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LOS ANGELES CO LF METHANE: Methane Producing Landfills
This data was created on April 30, 2012 to represent known disposal sites in Los Angeles County that may produce and emanate methane gas. The shapefile contains disposal sites within Los Angeles County that once accepted degradable refuse material. Information used to create this data was extracted from a landfill survey performed by County Engineers (Major Waste System Map, 1973) as well as historical records from CalRecycle, Regional Water Quality Control Board, and Los Angeles County Department of Public Health Date of Government Version: 10/12/2021
Date Data Arrived at EDR: 10/13/2021
Date Made Active in Reports: 01/04/2022
Number of Days to Update: 83
Source: Los Angeles County Department of Public Works
Telephone: 626-458-6973
Last EDR Contact: 01/07/2022
Next Scheduled EDR Contact: 04/25/2022
Data Release Frequency: No Update Planned
LOS ANGELES HM: Active & Inactive Hazardous Materials Inventory A listing of active & inactive hazardous materials facility locations, located in the City of Los Angeles.

Date of Government Version: 04/19/2021
Date Data Arrived at EDR: 06/17/2021
Date Made Active in Reports: 06/28/2021
Number of Days to Update: 11
Source: Los Angeles Fire Department
Telephone: 213-978-3800
Last EDR Contact: 12/17/2021
Next Scheduled EDR Contact: 04/04/2022
Data Release Frequency: Varies
LOS ANGELES UST: Active & Inactive UST Inventory
A listing of active & inactive underground storage tank site locations and underground storage tank historical sites, located in the City of Los Angeles.

Date of Government Version: 04/19/2021
Date Data Arrived at EDR: 06/17/2021
Date Made Active in Reports: 09/14/2021
Number of Days to Update: 89
Source: Los Angeles Fire Department
Telephone: 213-978-3800
Last EDR Contact: 12/17/2021
Next Scheduled EDR Contact: 04/04/2022
Data Release Frequency: Varies
SITE MIT LOS ANGELES: Site Mitigation List
Industrial sites that have had some sort of spill or complaint.

Date of Government Version: 05/26/2021
Date Data Arrived at EDR: 07/09/2021
Date Made Active in Reports: 09/29/2021
Number of Days to Update: 82
Source: Community Health Services
Telephone: 323-890-7806
Last EDR Contact: 01/13/2022
Next Scheduled EDR Contact: 04/24/2022
Data Release Frequency: Annually
UST EL SEGUNDO: City of El Segundo Underground Storage Tank Underground storage tank sites located in El Segundo city.

Date of Government Version: 01/21/2017
Date Data Arrived at EDR: 04/19/2017
Date Made Active in Reports: 05/10/2017
Number of Days to Update: 21
Source: City of El Segundo Fire Department
Telephone: 310-524-2236
Last EDR Contact: 01/07/2022
Next Scheduled EDR Contact: 04/25/2022
Data Release Frequency: No Update Planned
UST LONG BEACH: City of Long Beach Underground Storage Tank Underground storage tank sites located in the city of Long Beach.

Date of Government Version: 04/22/2019
Date Data Arrived at EDR: 04/23/2019
Date Made Active in Reports: 06/27/2019
Number of Days to Update: 65
Source: City of Long Beach Fire Department
Telephone: 562-570-2563
Last EDR Contact: 01/13/2022
Next Scheduled EDR Contact: 05/02/2022
Data Release Frequency: Varies
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UST TORRANCE: City of Torrance Underground Storage Tank Underground storage tank sites located in the city of Torrance.

Date of Government Version: 02/02/2021
Date Data Arrived at EDR: 04/28/2021
Date Made Active in Reports: 07/13/2021
Number of Days to Update: 76
Source: City of Torrance Fire Department
Telephone: 310-618-2973
Last EDR Contact: 01/13/2022
Next Scheduled EDR Contact: 05/02/2022
Data Release Frequency: Semi-Annually
MADERA COUNTY:

CUPA MADERA: 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: 08/10/2020
Date Data Arrived at EDR: 08/12/2020
Date Made Active in Reports: 10/23/2020
Number of Days to Update: 72
Source: Madera County Environmental Health
Telephone: 559-675-7823
Last EDR Contact: 11/11/2021
Next Scheduled EDR Contact: 02/28/2022
Data Release Frequency: Varies
MARIN COUNTY:

UST MARIN: Underground Storage Tank Sites
Currently permitted USTs in Marin County.

Date of Government Version: 09/26/2018
Date Data Arrived at EDR: 10/04/2018
Date Made Active in Reports: 11/02/2018
Number of Days to Update: 29
Source: Public Works Department Waste Management
Telephone: 415-473-6647
Last EDR Contact: 12/20/2021
Next Scheduled EDR Contact: 04/11/2022
Data Release Frequency: Semi-Annually
MENDOCINO COUNTY:

UST MENDOCINO: Mendocino County UST Database
A listing of underground storage tank locations in Mendocino County.

Date of Government Version: 09/22/2021
Date Data Arrived at EDR: 11/18/2021
Date Made Active in Reports: 11/22/2021
Number of Days to Update: 4
Source: Department of Public Health
Telephone: 707-463-4466
Last EDR Contact: 11/16/2021
Next Scheduled EDR Contact: 03/07/2022
Data Release Frequency: Annually
MERCED COUNTY:

CUPA MERCED: CUPA Facility List
CUPA facility list.

Date of Government Version: 08/11/2021
Date Data Arrived at EDR: 08/12/2021
Date Made Active in Reports: 11/08/2021
Number of Days to Update: 88
Source: Merced County Environmental Health
Telephone: 209-381-1094
Last EDR Contact: 11/23/2021
Next Scheduled EDR Contact: 02/28/2022
Data Release Frequency: Varies
MONO COUNTY:

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CUPA MONO: CUPA Facility List
CUPA Facility List
Date of Government Version: 02/22/2021
Date Data Arrived at EDR: 03/02/2021
Date Made Active in Reports: 05/19/2021
Number of Days to Update: 78
Source: Mono County Health Department
Telephone: 760-932-5580
Last EDR Contact: 01/13/2022
Next Scheduled EDR Contact: 03/07/2022
Data Release Frequency: Varies
MONTEREY COUNTY:

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

Date of Government Version: 10/04/2021
Date Data Arrived at EDR: 10/06/2021
Date Made Active in Reports: 12/29/2021
Number of Days to Update: 84
Source: Monterey County Health Department
Telephone: 831-796-1297
Last EDR Contact: 01/07/2022
Next Scheduled EDR Contact: 04/11/2022
Data Release Frequency: Varies
NAPA COUNTY:

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

Date of Government Version: 01/09/2017
Date Data Arrived at EDR: 01/11/2017
Date Made Active in Reports: 03/02/2017
Number of Days to Update: 50
Source: Napa County Department of Environmental Management Telephone: 707-253-4269
Last EDR Contact: 11/16/2021
Next Scheduled EDR Contact: 03/07/2022
Data Release Frequency: No Update Planned
UST NAPA: Closed and Operating Underground Storage Tank Sites Underground storage tank sites located in Napa county.

Date of Government Version: 09/05/2019
Date Data Arrived at EDR: 09/09/2019
Date Made Active in Reports: 10/31/2019
Number of Days to Update: 52
Source: Napa County Department of Environmental Management Telephone: 707-253-4269
Last EDR Contact: 11/16/2021
Next Scheduled EDR Contact: 03/07/2022
Data Release Frequency: No Update Planned
NEVADA COUNTY:

CUPA NEVADA: CUPA Facility List
CUPA facility list.

Date of Government Version: 10/26/2021
Date Data Arrived at EDR: 10/27/2021
Date Made Active in Reports: 01/20/2022
Number of Days to Update: 85
Source: Community Development Agency
Telephone: 530-265-1467
Last EDR Contact: 01/24/2022
Next Scheduled EDR Contact: 05/09/2022
Data Release Frequency: Varies
ORANGE COUNTY:

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

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Date of Government Version: 10/08/2021
Date Data Arrived at EDR: 11/04/2021
Date Made Active in Reports: 01/24/2022
Number of Days to Update: 81
Source: Health Care Agency
Telephone: 714-834-3446
Last EDR Contact: 10/29/2021
Next Scheduled EDR Contact: 02/14/2022
Data Release Frequency: Annually
LUST ORANGE: List of Underground Storage Tank Cleanups
Orange County Underground Storage Tank Cleanups (LUST).

Date of Government Version: 10/08/2021
Date Data Arrived at EDR: 11/02/2021
Date Made Active in Reports: 01/24/2022
Number of Days to Update: 83
Source: Health Care Agency
Telephone: 714-834-3446
Last EDR Contact: 10/29/2021
Next Scheduled EDR Contact: 02/14/2022
Data Release Frequency: Quarterly
UST ORANGE: List of Underground Storage Tank Facilities Orange County Underground Storage Tank Facilities (UST).

Date of Government Version: 10/29/2021
Date Data Arrived at EDR: 10/29/2021
Date Made Active in Reports: 01/20/2022
Number of Days to Update: 83
Source: Health Care Agency
Telephone: 714-834-3446
Last EDR Contact: 10/29/2021
Next Scheduled EDR Contact: 02/14/2022
Data Release Frequency: Quarterly
PLACER COUNTY:

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

Date of Government Version: 09/07/2021
Date Data Arrived at EDR: 09/09/2021
Date Made Active in Reports: 11/29/2021
Number of Days to Update: 81
Source: Placer County Health and Human Services
Telephone: 530-745-2363
Last EDR Contact: 11/23/2021
Next Scheduled EDR Contact: 03/14/2022
Data Release Frequency: Semi-Annually
PLUMAS COUNTY:

CUPA PLUMAS: CUPA Facility List
Plumas County CUPA Program facilities.

Date of Government Version: 03/31/2019
Date Data Arrived at EDR: 04/23/2019
Date Made Active in Reports: 06/26/2019
Number of Days to Update: 64
Source: Plumas County Environmental Health
Telephone: 530-283-6355
Last EDR Contact: 01/13/2022
Next Scheduled EDR Contact: 05/02/2022
Data Release Frequency: Varies
RIVERSIDE COUNTY:

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

Date of Government Version: 09/29/2021
Date Data Arrived at EDR: 09/30/2021
Date Made Active in Reports: 12/14/2021
Number of Days to Update: 75
Source: Department of Environmental Health
Telephone: 951-358-5055
Last EDR Contact: 12/08/2021
Next Scheduled EDR Contact: 03/28/2022
Data Release Frequency: Quarterly
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UST RIVERSIDE: Underground Storage Tank Tank List
Underground storage tank sites located in Riverside county.

Date of Government Version: 09/29/2021
Date Data Arrived at EDR: 09/30/2021
Date Made Active in Reports: 12/15/2021
Number of Days to Update: 76
Source: Department of Environmental Health
Telephone: 951-358-5055
Last EDR Contact: 12/08/2021
Next Scheduled EDR Contact: 03/28/2022
Data Release Frequency: Quarterly
SACRAMENTO COUNTY:

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

Date of Government Version: 06/18/2021
Date Data Arrived at EDR: 09/28/2021
Date Made Active in Reports: 12/14/2021
Number of Days to Update: 77
Source: Sacramento County Environmental Management
Telephone: 916-875-8406
Last EDR Contact: 12/29/2021
Next Scheduled EDR Contact: 04/11/2022
Data Release Frequency: Quarterly
ML SACRAMENTO: 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: 08/02/2021
Date Data Arrived at EDR: 08/04/2021
Date Made Active in Reports: 11/02/2021
Number of Days to Update: 90
Source: Sacramento County Environmental Management
Telephone: 916-875-8406
Last EDR Contact: 12/29/2021
Next Scheduled EDR Contact: 04/11/2022
Data Release Frequency: Quarterly
SAN BENITO COUNTY:

CUPA SAN BENITO: CUPA Facility List
Cupa facility list
Date of Government Version: 11/04/2021
Date Data Arrived at EDR: 11/05/2021
Date Made Active in Reports: 01/24/2022
Number of Days to Update: 80
Source: San Benito County Environmental Health
Telephone: N/A
Last EDR Contact: 01/28/2022
Next Scheduled EDR Contact: 05/16/2022
Data Release Frequency: Varies
SAN BERNARDINO COUNTY:

PERMITS SAN BERNARDINO: 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: 08/11/2021
Date Data Arrived at EDR: 08/12/2021
Date Made Active in Reports: 11/08/2021
Number of Days to Update: 88
Source: San Bernardino County Fire Department Hazardous Materials Division Telephone: 909-387-3041
Last EDR Contact: 11/01/2021
Next Scheduled EDR Contact: 02/14/2022
Data Release Frequency: Quarterly
SAN DIEGO COUNTY:

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HMMD SAN DIEGO: 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: 08/30/2021
Date Data Arrived at EDR: 08/31/2021
Date Made Active in Reports: 11/19/2021
Number of Days to Update: 80
Source: Hazardous Materials Management Division
Telephone: 619-338-2268
Last EDR Contact: 11/30/2021
Next Scheduled EDR Contact: 03/14/2022
Data Release Frequency: Quarterly
LF SAN DIEGO: Solid Waste Facilities
San Diego County Solid Waste Facilities.

Date of Government Version: 10/01/2020
Date Data Arrived at EDR: 11/23/2020
Date Made Active in Reports: 02/08/2021
Number of Days to Update: 77
Source: Department of Health Services
Telephone: 619-338-2209
Last EDR Contact: 01/13/2022
Next Scheduled EDR Contact: 05/02/2022
Data Release Frequency: Varies
SAN DIEGO CO LOP: Local Oversight Program Listing
A listing of all LOP release sites that are or were under the County of San Diego’s jurisdiction. Included are closed or transferred cases, open cases, and cases that did not have a case type indicated. The cases without a case type are mostly complaints; however, some of them could be LOP cases.

Date of Government Version: 07/22/2021
Date Data Arrived at EDR: 10/19/2021
Date Made Active in Reports: 01/13/2022
Number of Days to Update: 86
Source: Department of Environmental Health
Telephone: 858-505-6874
Last EDR Contact: 01/13/2022
Next Scheduled EDR Contact: 05/02/2022
Data Release Frequency: Varies
SAN DIEGO CO SAM: 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: 11/23/2021
Next Scheduled EDR Contact: 03/14/2022
Data Release Frequency: No Update Planned
SAN FRANCISCO COUNTY:

CUPA SAN FRANCISCO CO: CUPA Facility Listing
Cupa facilities
Date of Government Version: 08/05/2021
Date Data Arrived at EDR: 08/05/2021
Date Made Active in Reports: 10/29/2021
Number of Days to Update: 85
Source: San Francisco County Department of Environmental Health Telephone: 415-252-3896
Last EDR Contact: 01/28/2022
Next Scheduled EDR Contact: 05/16/2022
Data Release Frequency: Varies
LUST SAN FRANCISCO: Local Oversite Facilities
A listing of leaking underground storage tank sites located in San Francisco county.

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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: 01/28/2022
Next Scheduled EDR Contact: 05/16/2022
Data Release Frequency: No Update Planned
UST SAN FRANCISCO: Underground Storage Tank Information Underground storage tank sites located in San Francisco county.

Date of Government Version: 08/05/2021
Date Data Arrived at EDR: 08/05/2021
Date Made Active in Reports: 10/29/2021
Number of Days to Update: 85
Source: Department of Public Health
Telephone: 415-252-3920
Last EDR Contact: 01/28/2022
Next Scheduled EDR Contact: 05/16/2022
Data Release Frequency: Quarterly
SAN JOAQUIN COUNTY:

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

Date of Government Version: 06/22/2018
Date Data Arrived at EDR: 06/26/2018
Date Made Active in Reports: 07/11/2018
Number of Days to Update: 15
Source: Environmental Health Department
Telephone: N/A
Last EDR Contact: 09/09/2021
Next Scheduled EDR Contact: 12/27/2021
Data Release Frequency: Semi-Annually
SAN LUIS OBISPO COUNTY:

CUPA SAN LUIS OBISPO: CUPA Facility List
Cupa Facility List.

Date of Government Version: 08/10/2021
Date Data Arrived at EDR: 08/11/2021
Date Made Active in Reports: 11/08/2021
Number of Days to Update: 89
Source: San Luis Obispo County Public Health Department Telephone: 805-781-5596
Last EDR Contact: 11/11/2021
Next Scheduled EDR Contact: 02/28/2022
Data Release Frequency: Varies
SAN MATEO COUNTY:

BI SAN MATEO: Business Inventory
List includes Hazardous Materials Business Plan, hazardous waste generators, and underground storage tanks.

Date of Government Version: 02/20/2020
Date Data Arrived at EDR: 02/20/2020
Date Made Active in Reports: 04/24/2020
Number of Days to Update: 64
Source: San Mateo County Environmental Health Services Division Telephone: 650-363-1921
Last EDR Contact: 12/10/2021
Next Scheduled EDR Contact: 03/21/2022
Data Release Frequency: Annually
LUST SAN MATEO: Fuel Leak List
A listing of leaking underground storage tank sites located in San Mateo county.

Date of Government Version: 03/29/2019
Date Data Arrived at EDR: 03/29/2019
Date Made Active in Reports: 05/29/2019
Number of Days to Update: 61
Source: San Mateo County Environmental Health Services Division Telephone: 650-363-1921
Last EDR Contact: 12/02/2021
Next Scheduled EDR Contact: 03/21/2022
Data Release Frequency: Semi-Annually
SANTA BARBARA COUNTY:

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CUPA SANTA BARBARA: 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: 11/11/2021
Next Scheduled EDR Contact: 02/28/2022
Data Release Frequency: No Update Planned
SANTA CLARA COUNTY:

CUPA SANTA CLARA: Cupa Facility List
Cupa facility list
Date of Government Version: 08/04/2021
Date Data Arrived at EDR: 08/05/2021
Date Made Active in Reports: 10/29/2021
Number of Days to Update: 85
Source: Department of Environmental Health
Telephone: 408-918-1973
Last EDR Contact: 11/18/2021
Next Scheduled EDR Contact: 02/27/2022
Data Release Frequency: Varies
HIST LUST SANTA CLARA: 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
LUST SANTA CLARA: 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: 11/16/2021
Next Scheduled EDR Contact: 03/07/2022
Data Release Frequency: No Update Planned
SAN JOSE HAZMAT: Hazardous Material Facilities
Hazardous material facilities, including underground storage tank sites.

Date of Government Version: 11/03/2020
Date Data Arrived at EDR: 11/05/2020
Date Made Active in Reports: 01/26/2021
Number of Days to Update: 82
Source: City of San Jose Fire Department
Telephone: 408-535-7694
Last EDR Contact: 01/28/2022
Next Scheduled EDR Contact: 05/16/2022
Data Release Frequency: Annually
SANTA CRUZ COUNTY:

CUPA SANTA CRUZ: CUPA Facility List
CUPA facility listing.

Date of Government Version: 01/21/2017
Date Data Arrived at EDR: 02/22/2017
Date Made Active in Reports: 05/23/2017
Number of Days to Update: 90
Source: Santa Cruz County Environmental Health
Telephone: 831-464-2761
Last EDR Contact: 11/11/2021
Next Scheduled EDR Contact: 02/28/2022
Data Release Frequency: Varies
SHASTA COUNTY:

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CUPA SHASTA: CUPA Facility List
Cupa Facility List.

Date of Government Version: 06/15/2017
Date Data Arrived at EDR: 06/19/2017
Date Made Active in Reports: 08/09/2017
Number of Days to Update: 51
Source: Shasta County Department of Resource Management Telephone: 530-225-5789
Last EDR Contact: 11/11/2021
Next Scheduled EDR Contact: 02/28/2022
Data Release Frequency: Varies
SOLANO COUNTY:

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

Date of Government Version: 06/04/2019
Date Data Arrived at EDR: 06/06/2019
Date Made Active in Reports: 08/13/2019
Number of Days to Update: 68
Source: Solano County Department of Environmental Management Telephone: 707-784-6770
Last EDR Contact: 11/23/2021
Next Scheduled EDR Contact: 03/14/2022
Data Release Frequency: Quarterly
UST SOLANO: Underground Storage Tanks
Underground storage tank sites located in Solano county.

Date of Government Version: 09/15/2021
Date Data Arrived at EDR: 09/16/2021
Date Made Active in Reports: 12/09/2021
Number of Days to Update: 84
Source: Solano County Department of Environmental Management Telephone: 707-784-6770
Last EDR Contact: 11/23/2021
Next Scheduled EDR Contact: 03/14/2022
Data Release Frequency: Quarterly
SONOMA COUNTY:

CUPA SONOMA: Cupa Facility List
Cupa Facility list
Date of Government Version: 07/02/2021
Date Data Arrived at EDR: 07/06/2021
Date Made Active in Reports: 07/14/2021
Number of Days to Update: 8
Source: County of Sonoma Fire & Emergency Services Department Telephone: 707-565-1174
Last EDR Contact: 12/14/2021
Next Scheduled EDR Contact: 04/04/2022
Data Release Frequency: Varies
LUST SONOMA: Leaking Underground Storage Tank Sites
A listing of leaking underground storage tank sites located in Sonoma county.

Date of Government Version: 06/30/2021
Date Data Arrived at EDR: 06/30/2021
Date Made Active in Reports: 09/24/2021
Number of Days to Update: 86
Source: Department of Health Services
Telephone: 707-565-6565
Last EDR Contact: 12/14/2021
Next Scheduled EDR Contact: 04/04/2022
Data Release Frequency: Quarterly
STANISLAUS COUNTY:

CUPA STANISLAUS: CUPA Facility List
Cupa facility list
Date of Government Version: 05/14/2021
Date Data Arrived at EDR: 05/17/2021
Date Made Active in Reports: 08/03/2021
Number of Days to Update: 78
Source: Stanislaus County Department of Ennvironmental Protection Telephone: 209-525-6751
Last EDR Contact: 01/10/2022
Next Scheduled EDR Contact: 04/25/2022
Data Release Frequency: Varies
SUTTER COUNTY:

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UST SUTTER: Underground Storage Tanks
Underground storage tank sites located in Sutter county.

Date of Government Version: 08/23/2021
Date Data Arrived at EDR: 08/25/2021
Date Made Active in Reports: 11/17/2021
Number of Days to Update: 84
Source: Sutter County Environmental Health Services
Telephone: 530-822-7500
Last EDR Contact: 11/23/2021
Next Scheduled EDR Contact: 03/14/2022
Data Release Frequency: Semi-Annually
TEHAMA COUNTY:

CUPA TEHAMA: CUPA Facility List
Cupa facilities
Date of Government Version: 01/13/2021
Date Data Arrived at EDR: 01/14/2021
Date Made Active in Reports: 04/06/2021
Number of Days to Update: 82
Source: Tehama County Department of Environmental Health Telephone: 530-527-8020
Last EDR Contact: 01/28/2022
Next Scheduled EDR Contact: 05/16/2022
Data Release Frequency: Varies
TRINITY COUNTY:

CUPA TRINITY: CUPA Facility List
Cupa facility list
Date of Government Version: 10/18/2021
Date Data Arrived at EDR: 10/20/2021
Date Made Active in Reports: 01/13/2022
Number of Days to Update: 85
Source: Department of Toxic Substances Control
Telephone: 760-352-0381
Last EDR Contact: 01/13/2022
Next Scheduled EDR Contact: 05/02/2022
Data Release Frequency: Varies
TULARE COUNTY:

CUPA TULARE: CUPA Facility List
Cupa program facilities
Date of Government Version: 04/26/2021
Date Data Arrived at EDR: 04/28/2021
Date Made Active in Reports: 07/13/2021
Number of Days to Update: 76
Source: Tulare County Environmental Health Services Division Telephone: 559-624-7400
Last EDR Contact: 01/28/2022
Next Scheduled EDR Contact: 05/16/2022
Data Release Frequency: Varies
TUOLUMNE COUNTY:

CUPA TUOLUMNE: CUPA Facility List
Cupa facility list
Date of Government Version: 04/23/2018
Date Data Arrived at EDR: 04/25/2018
Date Made Active in Reports: 06/25/2018
Number of Days to Update: 61
Source: Divison of Environmental Health
Telephone: 209-533-5633
Last EDR Contact: 01/13/2022
Next Scheduled EDR Contact: 05/02/2022
Data Release Frequency: Varies
VENTURA COUNTY:

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BWT VENTURA: 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: 09/29/2021
Date Data Arrived at EDR: 10/26/2021
Date Made Active in Reports: 01/13/2022
Number of Days to Update: 79
Source: Ventura County Environmental Health Division
Telephone: 805-654-2813
Last EDR Contact: 01/18/2022
Next Scheduled EDR Contact: 05/02/2022
Data Release Frequency: Quarterly
LF VENTURA: 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: 12/20/2021
Next Scheduled EDR Contact: 04/11/2022
Data Release Frequency: No Update Planned
LUST VENTURA: 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: 11/05/2021
Next Scheduled EDR Contact: 02/21/2022
Data Release Frequency: No Update Planned
MED WASTE VENTURA: 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: 09/29/2021
Date Data Arrived at EDR: 10/21/2021
Date Made Active in Reports: 01/13/2022
Number of Days to Update: 84
Source: Ventura County Resource Management Agency
Telephone: 805-654-2813
Last EDR Contact: 01/18/2022
Next Scheduled EDR Contact: 05/02/2022
Data Release Frequency: Quarterly
UST VENTURA: Underground Tank Closed Sites List
Ventura County Operating Underground Storage Tank Sites (UST)/Underground Tank Closed Sites List.

Date of Government Version: 07/26/2021
Date Data Arrived at EDR: 09/08/2021
Date Made Active in Reports: 11/29/2021
Number of Days to Update: 82
Source: Environmental Health Division
Telephone: 805-654-2813
Last EDR Contact: 12/07/2021
Next Scheduled EDR Contact: 03/21/2022
Data Release Frequency: Quarterly
YOLO COUNTY:

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

Date of Government Version: 09/23/2021
Date Data Arrived at EDR: 09/28/2021
Date Made Active in Reports: 12/15/2021
Number of Days to Update: 78
Source: Yolo County Department of Health
Telephone: 530-666-8646
Last EDR Contact: 12/20/2021
Next Scheduled EDR Contact: 04/11/2022
Data Release Frequency: Annually
YUBA COUNTY:

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CUPA YUBA: CUPA Facility List
CUPA facility listing for Yuba County.

Date of Government Version: 10/26/2021
Date Data Arrived at EDR: 10/27/2021
Date Made Active in Reports: 01/20/2022
Number of Days to Update: 85
Source: Yuba County Environmental Health Department
Telephone: 530-749-7523
Last EDR Contact: 01/24/2022
Next Scheduled EDR Contact: 05/09/2022
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.

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: 07/23/2021
Date Data Arrived at EDR: 08/10/2021
Date Made Active in Reports: 11/08/2021
Number of Days to Update: 90
Source: Department of Energy & Environmental Protection Telephone: 860-424-3375
Last EDR Contact: 11/12/2021
Next Scheduled EDR Contact: 02/21/2022
Data Release Frequency: No Update Planned
NJ MANIFEST: Manifest Information
Hazardous waste manifest information.

Date of Government Version: 12/31/2018
Date Data Arrived at EDR: 04/10/2019
Date Made Active in Reports: 05/16/2019
Number of Days to Update: 36
Source: Department of Environmental Protection
Telephone: N/A
Last EDR Contact: 01/07/2022
Next Scheduled EDR Contact: 04/18/2022
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: 01/01/2019
Date Data Arrived at EDR: 10/29/2021
Date Made Active in Reports: 01/19/2022
Number of Days to Update: 82
Source: Department of Environmental Conservation
Telephone: 518-402-8651
Last EDR Contact: 01/28/2022
Next Scheduled EDR Contact: 05/09/2022
Data Release Frequency: Quarterly
PA MANIFEST: Manifest Information
Hazardous waste manifest information.

Date of Government Version: 06/30/2018
Date Data Arrived at EDR: 07/19/2019
Date Made Active in Reports: 09/10/2019
Number of Days to Update: 53
Source: Department of Environmental Protection
Telephone: 717-783-8990
Last EDR Contact: 01/10/2022
Next Scheduled EDR Contact: 04/25/2022
Data Release Frequency: Annually
RI MANIFEST: Manifest information
Hazardous waste manifest information
Date of Government Version: 12/31/2019
Date Data Arrived at EDR: 02/11/2021
Date Made Active in Reports: 02/24/2021
Number of Days to Update: 13
Source: Department of Environmental Management
Telephone: 401-222-2797
Last EDR Contact: 11/29/2021
Next Scheduled EDR Contact: 02/28/2022
Data Release Frequency: Annually
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WI MANIFEST: Manifest Information
Hazardous waste manifest information.

Date of Government Version: 05/31/2018
Date Data Arrived at EDR: 06/19/2019
Date Made Active in Reports: 09/03/2019
Number of Days to Update: 76
Source: Department of Natural Resources
Telephone: N/A
Last EDR Contact: 12/06/2021
Next Scheduled EDR Contact: 03/21/2022
Data Release Frequency: Annually
Oil/Gas Pipelines
Source: Endeavor Business Media
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 Endeavor Business Media. This information is provided on a best effort basis and Endeavor Business Media does not guarantee its accuracy nor warrant its fitness for any particular purpose. Such information has been reprinted with the permission of Endeavor Business Media.

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

Sensitive Receptors: There are individuals deemed sensitive receptors due to their fragile immune systems and special sensitivity 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
TC6838993.2s Page GR-52

GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
DRAFT
991
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991 of 1296
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 and Wildlife
Telephone: 916-445-0411
Current USGS 7.5 Minute Topographic Map
Source: U.S. Geological Survey

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.

TC6838993.2s Page GR-53

GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING
DRAFT
992
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992 of 1296
Lawrence Mitty Park and Trail
Cupertino, California
1340-1-1
APPENDIX B – QUESTIONNAIRE
DRAFT

CORNERSTONE

EARTH GROUP
993
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General Environmental Questionnaire
Cornerstone Earth Group is performing a Phase I environmental site assessment (ESA). The purpose of the ESA is to evaluate current and historic uses of the property that may have involved the use, generation, or storage of hazardous materials. Please respond to these questions to the best of your knowledge.

Return the completed, signed questionnaire by fax at (408) 245-4620 or by mail to the address below. Alternatively, a copy can be emailed to [email protected]. The completed questionnaire will be attached to the ESA report. Thank you for your assistance and timely response.

GENERAL PROPERTY INFORMATION
1) Site Address(es) and Assessor’s Parcel Number(s): Please list all current and former addresses. Some sites have multiple addresses; all are needed, even if they are not in current use.

Address(es) APN Number(s)
2) Property Size: 6T)WRU$FUHV 3) Current site owner(s) and purchase date:

Current Owner Name Year Purchased
4) Previous site owner(s) and dates of ownership:

Prior Owner Name Year Purchased Year Sold
DRAFT

CORNERSTONE

EARTH GROUP
1259 Oakmead Parkway I Sunnyvale, CA 94085 I T 408 245 4600 I F 408 245 4620 I www.cornerstoneearth.com ■ Adjacent to Lawrence Expressway just north of Mitty Way in San Jose APN 375-21-001 7.1 ✔ City of Cupertino 2020 County of Santa Clara Unknown 2020 994
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994 of 1296

STRUCTURES AND OCCUPANTS
5) Please describe all on-site buildings:

Building Size (sq. ft) Building Use Date of Construction Potable Water Source (e.g., city or other water agency, on-site well, etc.):

Sewage Disposal System (e.g., city sewer, septic tank, etc.):

Heating/Cooling System and Fuel Source (e.g., electric, natural gas, fuel oil, etc.):
6) Current site tenant(s), site use, and years of occupancy:

Years of Occupancy
Tenant Site Use (e.g., From 1995 to 2007)
7) Prior site tenant(s), site use, and years of occupancy:

Years of Occupancy
Tenant Site Use (e.g., From 1975 to 1983)

General Environmental Questionnaire Page 2
DRAFT
15! CORNERSTONE

EARTH GROUP

N/A N/A N/A N/A N/A N/A
995
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OTHER SITE FEATURES AND INFORMATION
8) Please indicate if you are aware of any of the following structures, features, or activities currently or formerly at the site.

Structure/Feature Yes No
Do Not
Know
Aboveground Storage Tanks (ASTs)
Agricultural fields
Agricultural or drinking water supply wells
Air emission control systems
Areas where garbage or other wastes have been disposed on-site Boilers
Chemical mixing or processing activities
Chemical storage areas
Current or former drainage ditches, ponds, or streams
Dry cleaning equipment
Dry wells
Elevators
Emergency generators
Equipment maintenance or repair areas
Fill materials placed on-site (i.e., fill used to build up the site elevation to current level)
Ground water monitoring wells
Ground water or soil remediation systems
Hydraulic lifts
Incinerators
Manufacturing machinery
Medical Waste
Oil or gas wells
Petroleum pipelines
Railroad lines
Septic tanks
Stockpiles of soil or debris
Storage sheds
Sumps, clarifiers, oil/water separators, or similar structures Transformers
Underground Storage Tanks (USTs)
Vapor or dust control hoods and ducting
Waste burning areas (i.e. burn pit) or ash disposal area If you checked yes to any of the above, please provide additional information here or attach to this questionnaire.

General Environmental Questionnaire Page 3
DRAFT
15! CORNERSTONE

EARTH GROUP
The site was used by the County of Santa Clara Roads and Airport Maintenance Divisions for over 20 years to stockpile soils.

Site Historic photos indicates tree orchards were located at this site. 996 CC 07-02-2024
996 of 1296
9) Please indicate if, to your knowledge, any of the following documents exist:

Document Yes No
Do Not
Know
Environmental site assessments
Environmental permits or violation notices
Underground or above ground storage tank documents/permits Geotechnical reports or hydrogeologic studies
Risk assessments
Hazardous materials management plans or chemical inventories Safety/emergency response plans or spill prevention plans Compliance audits or community right-to-know plans
Asbestos or lead based paint surveys
No
If you checked yes to any of the above, please indicate the location of the documents.

Can copies be provided? Yes
10) Have significant quantities of hazardous materials been used, stored, or generated on-site? Yes No
If so, please list types and quantities and where these materials are or were located. 11) Are you aware of commonly known or reasonably ascertainable information about the site that would help the environmental professional to identify conditions indicative of releases or threatened releases? For example, do you know of past uses of the site, specific chemicals that were or are present at the site, have knowledge of spills or other chemical releases at the site, or any environmental cleanups at the site.

Yes No
If so, please briefly describe below, including whether reports documenting the activities are available for review by Cornerstone Earth Group.
12) Are you aware of any environmental cleanup liens against the site that are filed or recorded under federal, tribal, state, or local law?
Yes No

General Environmental Questionnaire Page 4
DRAFT
15! CORNERSTONE

EARTH GROUP
Phase 1 ESA completed in April 2016 by Cornerstone Earth Group 997
CC 07-02-2024
997 of 1296

General Environmental Questionnaire Page 5
13) Are you aware of any activity or use limitations (UALs), such as engineering controls, land use restrictions, or institutional controls that are in place at the site and/or have been filed or recorded in a registry under federal, tribal, state, or local law? Yes No
If so, please briefly describe below.
14) Are you aware of 1) any pending, threatened or past litigation, or administrative proceedings relevant to hazardous substances or petroleum products at the site, or 2) any notices from any governmental entity regarding possible violations of environmental laws or possible liability related to hazardous substances or petroleum products? Yes No
If so, please briefly describe below.
15) Completed by:

Name (print) Signature Company Date
DRAFT
15! CORNERSTONE

EARTH GROUP
Lisa Cameli City of Cupertino 1/13/22
998
CC 07-02-2024
998 of 1296
Lawrence Mitty Park and Trail
Cupertino, California
1340-1-1
APPENDIX C – BORING LOGS
DRAFT

CORNERSTONE

EARTH GROUP
999
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999 of 1296
Clayey Sand (SC) [Fill]
moist, brown, fine sand
Clayey Sand (SC) [Fill]
moist, brown, fine sand, trace fine to coarse
subrounded gravel, trace brick and concrete
fragments
Bottom of Boring at 5.0 feet.
100

0.1 0.1

0.1 0.1

0.1 None
NOTES

LOGGED BY BTM
DRILLING METHOD Hand Auger

DRILLING CONTRACTOR
GROUND WATER LEVELS:

DATE STARTED 1/25/22 DATE COMPLETED 1/25/22 GROUND ELEVATION BORING DEPTH 5 ft.

AT TIME OF DRILLING Not Encountered
AT END OF DRILLING Not Encountered

LATITUDE LONGITUDE
DEPTH (ft)

0.0 2.5

5.0 7.5

10.0 SYMBOL
ELEVATION (ft)
PROJECT NAME Mitty Park
PROJECT NUMBER 1340-1-1
PROJECT LOCATION San Jose, CA
BORING NUMBER SS-1A
PAGE 1 OF 1
This log is a part of a report by Cornerstone Earth Group, and should not be used as a stand-alone document. This description applies only to the location of the exploration at the time of drilling. Subsurface conditions may differ at other locations and may change at this location with time. The description presented is a simplification of actual conditions encountered. Transitions between soil types may be gradual.

DESCRIPTION
Percent Recovery
(%)
OVM Reading
(ppm)
Odors or Discoloration
Notes
Sample Type and Interval
Sample Submitted for
Laboratory Analysis
N-Value (uncorrected)
blows per foot
CORNERSTONE GE LOG DEC192007 - CORNERSTONE 0812.GDT - 2/4/22 14:13 - P:\DRAFTING\GINT FILES\1340-1-1 MITTY PARK GE.GPJ DRAFT
Ii! CORNERSTONE

EARTH GROUP
'¥-
y
- ) ~
~ - ~
~
- ~ ----------------------- > ~
- ~
~
- ~
' ~
- ~
~
- ~
' ~
- ~
~
- ~
' ~
- ~
~
-
-
-
-
-
-
-
-
-
-
-
-
-
1000
CC 07-02-2024
1000 of 1296
Clayey Sand with Gravel (SC) [Fill]
moist, brown, fine sand
Clayey Sand (SC) [Fill]
moist, brown, fine sand, some fine to coarse
subrounded gravel, trace brick and concrete
fragments
Bottom of Boring at 5.0 feet.
66 0.5

0.5 0.5

0.5 None
NOTES

LOGGED BY BTM
DRILLING METHOD Geoprobe 6610DT, Direct Push

DRILLING CONTRACTOR
GROUND WATER LEVELS:

DATE STARTED 1/25/22 DATE COMPLETED 1/25/22 GROUND ELEVATION BORING DEPTH 5 ft.

AT TIME OF DRILLING Not Encountered
AT END OF DRILLING Not Encountered

LATITUDE LONGITUDE
DEPTH (ft)

0.0 2.5

5.0 7.5

10.0 SYMBOL
ELEVATION (ft)
PROJECT NAME Mitty Park
PROJECT NUMBER 1340-1-1
PROJECT LOCATION San Jose, CA
BORING NUMBER SS-1B
PAGE 1 OF 1
This log is a part of a report by Cornerstone Earth Group, and should not be used as a stand-alone document. This description applies only to the location of the exploration at the time of drilling. Subsurface conditions may differ at other locations and may change at this location with time. The description presented is a simplification of actual conditions encountered. Transitions between soil types may be gradual.

DESCRIPTION
Percent Recovery
(%)
OVM Reading
(ppm)
Odors or Discoloration
Notes
Sample Type and Interval
Sample Submitted for
Laboratory Analysis
N-Value (uncorrected)
blows per foot
CORNERSTONE GE LOG DEC192007 - CORNERSTONE 0812.GDT - 2/4/22 14:13 - P:\DRAFTING\GINT FILES\1340-1-1 MITTY PARK GE.GPJ DRAFT
Ii! CORNERSTONE

EARTH GROUP
'¥-
y
- ) X
- -----------------------
X ~
- X
- ' X
X ~
- X
- ' X
X ~
- X
- ' X
X ~
- X
' - X

X X X -
-
-
-
-
-
-
-
-
-
-
-
-
1001
CC 07-02-2024
1001 of 1296
Clayey Sand with Gravel (SC) [Fill]
moist, brown, fine sand, fine to coarse
subangular to subrounded gravel, some brick
and concrete fragments
Bottom of Boring at 5.0 feet.
100

0.1 0.1

0.1 0.1

0.1 None
NOTES

LOGGED BY BTM
DRILLING METHOD Hand Auger

DRILLING CONTRACTOR
GROUND WATER LEVELS:

DATE STARTED 1/25/22 DATE COMPLETED 1/25/22 GROUND ELEVATION BORING DEPTH 5 ft.

AT TIME OF DRILLING Not Encountered
AT END OF DRILLING Not Encountered

LATITUDE LONGITUDE
DEPTH (ft)

0.0 2.5

5.0 7.5

10.0 SYMBOL
ELEVATION (ft)
PROJECT NAME Mitty Park
PROJECT NUMBER 1340-1-1
PROJECT LOCATION San Jose, CA
BORING NUMBER SS-1C
PAGE 1 OF 1
This log is a part of a report by Cornerstone Earth Group, and should not be used as a stand-alone document. This description applies only to the location of the exploration at the time of drilling. Subsurface conditions may differ at other locations and may change at this location with time. The description presented is a simplification of actual conditions encountered. Transitions between soil types may be gradual.

DESCRIPTION
Percent Recovery
(%)
OVM Reading
(ppm)
Odors or Discoloration
Notes
Sample Type and Interval
Sample Submitted for
Laboratory Analysis
N-Value (uncorrected)
blows per foot
CORNERSTONE GE LOG DEC192007 - CORNERSTONE 0812.GDT - 2/4/22 14:13 - P:\DRAFTING\GINT FILES\1340-1-1 MITTY PARK GE.GPJ DRAFT
Ii! CORNERSTONE

EARTH GROUP
'¥-
y
- ) ~
~ - ~
~
-
' ~
- ~
~
~
-
' ~
- ~
~
~
-
' ~
- ~
~
~
-
' ~
- ~
~
~
-
-
-
-
-
-
-
-
-
-
-
-
-
1002
CC 07-02-2024
1002 of 1296
Clayey Sand with Gravel (SC) [Fill]
moist, brown, fine sand, fine to coarse
subangular to subrounded gravel, some brick
and concrete fragments
Bottom of Boring at 5.0 feet.
100
0 0
0 0
0 None
NOTES

LOGGED BY BTM
DRILLING METHOD Hand Auger

DRILLING CONTRACTOR
GROUND WATER LEVELS:

DATE STARTED 1/25/22 DATE COMPLETED 1/25/22 GROUND ELEVATION BORING DEPTH 5 ft.

AT TIME OF DRILLING Not Encountered
AT END OF DRILLING Not Encountered

LATITUDE LONGITUDE
DEPTH (ft)

0.0 2.5

5.0 7.5

10.0 SYMBOL
ELEVATION (ft)
PROJECT NAME Mitty Park
PROJECT NUMBER 1340-1-1
PROJECT LOCATION San Jose, CA
BORING NUMBER SS-1D
PAGE 1 OF 1
This log is a part of a report by Cornerstone Earth Group, and should not be used as a stand-alone document. This description applies only to the location of the exploration at the time of drilling. Subsurface conditions may differ at other locations and may change at this location with time. The description presented is a simplification of actual conditions encountered. Transitions between soil types may be gradual.

DESCRIPTION
Percent Recovery
(%)
OVM Reading
(ppm)
Odors or Discoloration
Notes
Sample Type and Interval
Sample Submitted for
Laboratory Analysis
N-Value (uncorrected)
blows per foot
CORNERSTONE GE LOG DEC192007 - CORNERSTONE 0812.GDT - 2/4/22 14:13 - P:\DRAFTING\GINT FILES\1340-1-1 MITTY PARK GE.GPJ DRAFT
Ii! CORNERSTONE

EARTH GROUP
'¥-
y
- ) ~
~ - ~
~
-
' ~
- ~
~
~
-
' ~
- ~
~
~
-
' ~
- ~
~
~
-
' ~
- ~
~
~
-
-
-
-
-
-
-
-
-
-
-
-
-
1003
CC 07-02-2024
1003 of 1296
Clayey Sand (SC) [Fill]
moist, brown, fine sand, some fine subangular
to subrounded gravel, some brick and
concrete fragments
Bottom of Boring at 5.0 feet.
100

0.1 None
NOTES

LOGGED BY BTM
DRILLING METHOD Hand Auger

DRILLING CONTRACTOR
GROUND WATER LEVELS:

DATE STARTED 1/25/22 DATE COMPLETED 1/25/22 GROUND ELEVATION BORING DEPTH 5 ft.

AT TIME OF DRILLING Not Encountered
AT END OF DRILLING Not Encountered

LATITUDE LONGITUDE
DEPTH (ft)

0.0 2.5

5.0 7.5

10.0 SYMBOL
ELEVATION (ft)
PROJECT NAME Mitty Park
PROJECT NUMBER 1340-1-1
PROJECT LOCATION San Jose, CA
BORING NUMBER SS-4A
PAGE 1 OF 1
This log is a part of a report by Cornerstone Earth Group, and should not be used as a stand-alone document. This description applies only to the location of the exploration at the time of drilling. Subsurface conditions may differ at other locations and may change at this location with time. The description presented is a simplification of actual conditions encountered. Transitions between soil types may be gradual.

DESCRIPTION
Percent Recovery
(%)
OVM Reading
(ppm)
Odors or Discoloration
Notes
Sample Type and Interval
Sample Submitted for
Laboratory Analysis
N-Value (uncorrected)
blows per foot
CORNERSTONE GE LOG DEC192007 - CORNERSTONE 0812.GDT - 2/4/22 14:13 - P:\DRAFTING\GINT FILES\1340-1-1 MITTY PARK GE.GPJ DRAFT
Ii! CORNERSTONE

EARTH GROUP
'¥-
y
- ) ~
~ - ~
~
-
' ~
- ~
~
~
-
' ~
- ~
~
~
-
' ~
- ~
~
~
-
' ~
- ~
~
~
-
-
-
-
-
-
-
-
-
-
-
-
-
1004
CC 07-02-2024
1004 of 1296
Clayey Sand with Gravel (SC) [Fill]
moist, brown, fine sand, fine subangular gravel
Clayey Sand with Gravel (SC) [Fill]
moist, brown, fine sand, fine subangular gravel,
trace brick fragments
Fat Clay with Sand (CH) [Fill]
moist, brown, fine sand, trace fine subangular
gravel, trace brick fragments
Clayey Sand with Gravel (SC) [Fill]
moist, brown, fine sand, fine subangular gravel,
trace brick and concrete fragments
Bottom of Boring at 5.0 feet.
66 0.4

0.4 0.4

0.4 None
NOTES

LOGGED BY BTM
DRILLING METHOD Geoprobe 6610DT, Direct Push

DRILLING CONTRACTOR
GROUND WATER LEVELS:

DATE STARTED 1/25/22 DATE COMPLETED 1/25/22 GROUND ELEVATION BORING DEPTH 5 ft.

AT TIME OF DRILLING Not Encountered
AT END OF DRILLING Not Encountered

LATITUDE LONGITUDE
DEPTH (ft)

0.0 2.5

5.0 7.5

10.0 SYMBOL
ELEVATION (ft)
PROJECT NAME Mitty Park
PROJECT NUMBER 1340-1-1
PROJECT LOCATION San Jose, CA
BORING NUMBER SS-4B
PAGE 1 OF 1
This log is a part of a report by Cornerstone Earth Group, and should not be used as a stand-alone document. This description applies only to the location of the exploration at the time of drilling. Subsurface conditions may differ at other locations and may change at this location with time. The description presented is a simplification of actual conditions encountered. Transitions between soil types may be gradual.

DESCRIPTION
Percent Recovery
(%)
OVM Reading
(ppm)
Odors or Discoloration
Notes
Sample Type and Interval
Sample Submitted for
Laboratory Analysis
N-Value (uncorrected)
blows per foot
CORNERSTONE GE LOG DEC192007 - CORNERSTONE 0812.GDT - 2/4/22 14:13 - P:\DRAFTING\GINT FILES\1340-1-1 MITTY PARK GE.GPJ DRAFT
Ii! CORNERSTONE
EARTH GROU p
'¥-
y
- ) ~
~ - ~
~
- ~ ----------------------- > ~
- ~
~
- -----------------------
- ' ~
~
~
- ~
- '
)
► ~-----------------------
~
- ' ~
~
~ - ~
-
-
-
-
-
-
-
-
-
-
-
-
-
1005
CC 07-02-2024
1005 of 1296
Clayey Sand (SC) [Fill]
moist, brown, fine sand, some fine subangular
to subrounded gravel, some brick and
concrete fragments
Bottom of Boring at 5.0 feet.
100

0.1 0.1

0.1 0.1

0.1 None
NOTES

LOGGED BY BTM
DRILLING METHOD Hand Auger

DRILLING CONTRACTOR
GROUND WATER LEVELS:

DATE STARTED 1/25/22 DATE COMPLETED 1/25/22 GROUND ELEVATION BORING DEPTH 5 ft.

AT TIME OF DRILLING Not Encountered
AT END OF DRILLING Not Encountered

LATITUDE LONGITUDE
DEPTH (ft)

0.0 2.5

5.0 7.5

10.0 SYMBOL
ELEVATION (ft)
PROJECT NAME Mitty Park
PROJECT NUMBER 1340-1-1
PROJECT LOCATION San Jose, CA
BORING NUMBER SS-4C
PAGE 1 OF 1
This log is a part of a report by Cornerstone Earth Group, and should not be used as a stand-alone document. This description applies only to the location of the exploration at the time of drilling. Subsurface conditions may differ at other locations and may change at this location with time. The description presented is a simplification of actual conditions encountered. Transitions between soil types may be gradual.

DESCRIPTION
Percent Recovery
(%)
OVM Reading
(ppm)
Odors or Discoloration
Notes
Sample Type and Interval
Sample Submitted for
Laboratory Analysis
N-Value (uncorrected)
blows per foot
CORNERSTONE GE LOG DEC192007 - CORNERSTONE 0812.GDT - 2/4/22 14:13 - P:\DRAFTING\GINT FILES\1340-1-1 MITTY PARK GE.GPJ DRAFT
Ii! CORNERSTONE

EARTH GROUP
'¥-
y
- ) ~
~ - ~
~
-
' ~
- ~
~
~
-
' ~
- ~
~
~
-
' ~
- ~
~
~
-
' ~
- ~
~
~
-
-
-
-
-
-
-
-
-
-
-
-
-
1006
CC 07-02-2024
1006 of 1296
Clayey Sand (SC) [Fill]
moist, brown, fine sand, some fine subangular
to subrounded gravel
Bottom of Boring at 5.0 feet.
100

0.1 0.1

0.1 0.1

0.1 None
NOTES

LOGGED BY BTM
DRILLING METHOD Hand Auger

DRILLING CONTRACTOR
GROUND WATER LEVELS:

DATE STARTED 1/25/22 DATE COMPLETED 1/25/22 GROUND ELEVATION BORING DEPTH 5 ft.

AT TIME OF DRILLING Not Encountered
AT END OF DRILLING Not Encountered

LATITUDE LONGITUDE
DEPTH (ft)

0.0 2.5

5.0 7.5

10.0 SYMBOL
ELEVATION (ft)
PROJECT NAME Mitty Park
PROJECT NUMBER 1340-1-1
PROJECT LOCATION San Jose, CA
BORING NUMBER SS-4D
PAGE 1 OF 1
This log is a part of a report by Cornerstone Earth Group, and should not be used as a stand-alone document. This description applies only to the location of the exploration at the time of drilling. Subsurface conditions may differ at other locations and may change at this location with time. The description presented is a simplification of actual conditions encountered. Transitions between soil types may be gradual.

DESCRIPTION
Percent Recovery
(%)
OVM Reading
(ppm)
Odors or Discoloration
Notes
Sample Type and Interval
Sample Submitted for
Laboratory Analysis
N-Value (uncorrected)
blows per foot
CORNERSTONE GE LOG DEC192007 - CORNERSTONE 0812.GDT - 2/4/22 14:13 - P:\DRAFTING\GINT FILES\1340-1-1 MITTY PARK GE.GPJ DRAFT
Ii! CORNERSTONE

EARTH GROUP
'¥-
y
- ) ~
~ - ~
~
-
' ~
- ~
~
~
-
' ~
- ~
~
~
-
' ~
- ~
~
~
-
' ~
- ~
~
~
-
-
-
-
-
-
-
-
-
-
-
-
-
1007
CC 07-02-2024
1007 of 1296
Clayey Sand (SC) [Fill]
moist, brown, fine sand, some fine subangular
to subrounded gravel, some brick and
concrete fragments
Bottom of Boring at 5.0 feet.
100

0.1 0.1

0.1 0.1

0.1 None
NOTES

LOGGED BY BTM
DRILLING METHOD Hand Auger

DRILLING CONTRACTOR
GROUND WATER LEVELS:

DATE STARTED 1/25/22 DATE COMPLETED 1/25/22 GROUND ELEVATION BORING DEPTH 5 ft.

AT TIME OF DRILLING Not Encountered
AT END OF DRILLING Not Encountered

LATITUDE LONGITUDE
DEPTH (ft)

0.0 2.5

5.0 7.5

10.0 SYMBOL
ELEVATION (ft)
PROJECT NAME Mitty Park
PROJECT NUMBER 1340-1-1
PROJECT LOCATION San Jose, CA
BORING NUMBER SS-5A
PAGE 1 OF 1
This log is a part of a report by Cornerstone Earth Group, and should not be used as a stand-alone document. This description applies only to the location of the exploration at the time of drilling. Subsurface conditions may differ at other locations and may change at this location with time. The description presented is a simplification of actual conditions encountered. Transitions between soil types may be gradual.

DESCRIPTION
Percent Recovery
(%)
OVM Reading
(ppm)
Odors or Discoloration
Notes
Sample Type and Interval
Sample Submitted for
Laboratory Analysis
N-Value (uncorrected)
blows per foot
CORNERSTONE GE LOG DEC192007 - CORNERSTONE 0812.GDT - 2/4/22 14:13 - P:\DRAFTING\GINT FILES\1340-1-1 MITTY PARK GE.GPJ DRAFT
Ii! CORNERSTONE

EARTH GROUP
'¥-
y
- ) ~
~ - ~
~
-
' ~
- ~
~
~
-
' ~
- ~
~
~
-
' ~
- ~
~
~
-
' ~
- ~
~
~
-
-
-
-
-
-
-
-
-
-
-
-
-
1008
CC 07-02-2024
1008 of 1296
Clayey Sand with Gravel (SC) [Fill]
moist, brown, fine to coarse sand, fine
subangular gravel
Clayey Sand (SC) [Fill]
moist, brown, fine sand, some brick and
concrete fragments
Bottom of Boring at 5.0 feet.
66 0.1

0.1 0.1

0.1 0.1
None
NOTES

LOGGED BY BTM
DRILLING METHOD Geoprobe 6610DT, Direct Push

DRILLING CONTRACTOR
GROUND WATER LEVELS:

DATE STARTED 1/25/22 DATE COMPLETED 1/25/22 GROUND ELEVATION BORING DEPTH 5 ft.

AT TIME OF DRILLING Not Encountered
AT END OF DRILLING Not Encountered

LATITUDE LONGITUDE
DEPTH (ft)

0.0 2.5

5.0 7.5

10.0 SYMBOL
ELEVATION (ft)
PROJECT NAME Mitty Park
PROJECT NUMBER 1340-1-1
PROJECT LOCATION San Jose, CA
BORING NUMBER SS-5B
PAGE 1 OF 1
This log is a part of a report by Cornerstone Earth Group, and should not be used as a stand-alone document. This description applies only to the location of the exploration at the time of drilling. Subsurface conditions may differ at other locations and may change at this location with time. The description presented is a simplification of actual conditions encountered. Transitions between soil types may be gradual.

DESCRIPTION
Percent Recovery
(%)
OVM Reading
(ppm)
Odors or Discoloration
Notes
Sample Type and Interval
Sample Submitted for
Laboratory Analysis
N-Value (uncorrected)
blows per foot
CORNERSTONE GE LOG DEC192007 - CORNERSTONE 0812.GDT - 2/4/22 14:13 - P:\DRAFTING\GINT FILES\1340-1-1 MITTY PARK GE.GPJ DRAFT
Ii! CORNERSTONE

EARTH GROUP
'¥-
y
- ) ~
~ - ~
~
- ~ ----------------------- > ~
- ~
~
- ~
' ~
- ~
~
- ~
' ~
- ~
~
- ~
' ~
- ~
~
-
-
-
-
-
-
-
-
-
-
-
-
-
1009
CC 07-02-2024
1009 of 1296
Clayey Sand (SC) [Fill]
moist, brown, fine sand, some fine subangular
to subrounded gravel, some brick and
concrete fragments
Bottom of Boring at 5.0 feet.
100

0.1 0.1

0.1 0.1

0.1 None
NOTES

LOGGED BY BTM
DRILLING METHOD Hand Auger

DRILLING CONTRACTOR
GROUND WATER LEVELS:

DATE STARTED 1/25/22 DATE COMPLETED 1/25/22 GROUND ELEVATION BORING DEPTH 5 ft.

AT TIME OF DRILLING Not Encountered
AT END OF DRILLING Not Encountered

LATITUDE LONGITUDE
DEPTH (ft)

0.0 2.5

5.0 7.5

10.0 SYMBOL
ELEVATION (ft)
PROJECT NAME Mitty Park
PROJECT NUMBER 1340-1-1
PROJECT LOCATION San Jose, CA
BORING NUMBER SS-5C
PAGE 1 OF 1
This log is a part of a report by Cornerstone Earth Group, and should not be used as a stand-alone document. This description applies only to the location of the exploration at the time of drilling. Subsurface conditions may differ at other locations and may change at this location with time. The description presented is a simplification of actual conditions encountered. Transitions between soil types may be gradual.

DESCRIPTION
Percent Recovery
(%)
OVM Reading
(ppm)
Odors or Discoloration
Notes
Sample Type and Interval
Sample Submitted for
Laboratory Analysis
N-Value (uncorrected)
blows per foot
CORNERSTONE GE LOG DEC192007 - CORNERSTONE 0812.GDT - 2/4/22 14:13 - P:\DRAFTING\GINT FILES\1340-1-1 MITTY PARK GE.GPJ DRAFT
Ii! CORNERSTONE

EARTH GROUP
'¥-
y
- ) ~
~ - ~
~
-
' ~
- ~
~
~
-
' ~
- ~
~
~
-
' ~
- ~
~
~
-
' ~
- ~
~
~
-
-
-
-
-
-
-
-
-
-
-
-
-
1010
CC 07-02-2024
1010 of 1296
Clayey Sand (SC) [Fill]
moist, brown, fine sand, some fine subangular
to subrounded gravel, some brick and
concrete fragments
Bottom of Boring at 5.0 feet.
100

0.1 0.1

0.1 0.1

0.1 None
NOTES

LOGGED BY BTM
DRILLING METHOD Hand Auger

DRILLING CONTRACTOR
GROUND WATER LEVELS:

DATE STARTED 1/25/22 DATE COMPLETED 1/25/22 GROUND ELEVATION BORING DEPTH 5 ft.

AT TIME OF DRILLING Not Encountered
AT END OF DRILLING Not Encountered

LATITUDE LONGITUDE
DEPTH (ft)

0.0 2.5

5.0 7.5

10.0 SYMBOL
ELEVATION (ft)
PROJECT NAME Mitty Park
PROJECT NUMBER 1340-1-1
PROJECT LOCATION San Jose, CA
BORING NUMBER SS-5D
PAGE 1 OF 1
This log is a part of a report by Cornerstone Earth Group, and should not be used as a stand-alone document. This description applies only to the location of the exploration at the time of drilling. Subsurface conditions may differ at other locations and may change at this location with time. The description presented is a simplification of actual conditions encountered. Transitions between soil types may be gradual.

DESCRIPTION
Percent Recovery
(%)
OVM Reading
(ppm)
Odors or Discoloration
Notes
Sample Type and Interval
Sample Submitted for
Laboratory Analysis
N-Value (uncorrected)
blows per foot
CORNERSTONE GE LOG DEC192007 - CORNERSTONE 0812.GDT - 2/4/22 14:13 - P:\DRAFTING\GINT FILES\1340-1-1 MITTY PARK GE.GPJ DRAFT
Ii! CORNERSTONE

EARTH GROUP
'¥-
y
- ) ~
~ - ~
~
-
' ~
- ~
~
~
-
' ~
- ~
~
~
-
' ~
- ~
~
~
-
' ~
- ~
~
~
-
-
-
-
-
-
-
-
-
-
-
-
-
1011
CC 07-02-2024
1011 of 1296
Clayey Sand with Gravel (SC) [Fill]
moist, brown, fine sand, fine subangular gravel
Clayey Sand (SC) [Fill]
moist, brown, fine sand, some fine subangular
to subrounded gravel
Bottom of Boring at 5.0 feet.
100

0.4 0.4

0.3 0.2

0.4 None
NOTES

LOGGED BY BTM
DRILLING METHOD Hand Auger

DRILLING CONTRACTOR
GROUND WATER LEVELS:

DATE STARTED 1/25/22 DATE COMPLETED 1/25/22 GROUND ELEVATION BORING DEPTH 5 ft.

AT TIME OF DRILLING Not Encountered
AT END OF DRILLING Not Encountered

LATITUDE LONGITUDE
DEPTH (ft)

0.0 2.5

5.0 7.5

10.0 SYMBOL
ELEVATION (ft)
PROJECT NAME Mitty Park
PROJECT NUMBER 1340-1-1
PROJECT LOCATION San Jose, CA
BORING NUMBER SS-6A
PAGE 1 OF 1
This log is a part of a report by Cornerstone Earth Group, and should not be used as a stand-alone document. This description applies only to the location of the exploration at the time of drilling. Subsurface conditions may differ at other locations and may change at this location with time. The description presented is a simplification of actual conditions encountered. Transitions between soil types may be gradual.

DESCRIPTION
Percent Recovery
(%)
OVM Reading
(ppm)
Odors or Discoloration
Notes
Sample Type and Interval
Sample Submitted for
Laboratory Analysis
N-Value (uncorrected)
blows per foot
CORNERSTONE GE LOG DEC192007 - CORNERSTONE 0812.GDT - 2/4/22 14:13 - P:\DRAFTING\GINT FILES\1340-1-1 MITTY PARK GE.GPJ DRAFT
Ii! CORNERSTONE

EARTH GROUP
'¥-
y
- ) X
X - ~
X
-
' X
- X ~
X
-
' > X
~
- ----------------------- X X
~
- X
' X
- X ~
- X
' X
- X ~
-
-
-
-
-
-
-
-
-
-
-
-
-
1012
CC 07-02-2024
1012 of 1296
Clayey Sand (SC) [Fill]
moist, brown, fine sand, some fine subangular
to subrounded gravel, some brick and
concrete fragments
decreasing gravel content at 2.5 feet
Bottom of Boring at 5.0 feet.
100

0.1 0.1

0.1 0.1

0.1 None
NOTES

LOGGED BY BTM
DRILLING METHOD Hand Auger

DRILLING CONTRACTOR
GROUND WATER LEVELS:

DATE STARTED 1/25/22 DATE COMPLETED 1/25/22 GROUND ELEVATION BORING DEPTH 5 ft.

AT TIME OF DRILLING Not Encountered
AT END OF DRILLING Not Encountered

LATITUDE LONGITUDE
DEPTH (ft)

0.0 2.5

5.0 7.5

10.0 SYMBOL
ELEVATION (ft)
PROJECT NAME Mitty Park
PROJECT NUMBER 1340-1-1
PROJECT LOCATION San Jose, CA
BORING NUMBER SS-6B
PAGE 1 OF 1
This log is a part of a report by Cornerstone Earth Group, and should not be used as a stand-alone document. This description applies only to the location of the exploration at the time of drilling. Subsurface conditions may differ at other locations and may change at this location with time. The description presented is a simplification of actual conditions encountered. Transitions between soil types may be gradual.

DESCRIPTION
Percent Recovery
(%)
OVM Reading
(ppm)
Odors or Discoloration
Notes
Sample Type and Interval
Sample Submitted for
Laboratory Analysis
N-Value (uncorrected)
blows per foot
CORNERSTONE GE LOG DEC192007 - CORNERSTONE 0812.GDT - 2/4/22 14:13 - P:\DRAFTING\GINT FILES\1340-1-1 MITTY PARK GE.GPJ DRAFT
Ii! CORNERSTONE

EARTH GROUP
'¥-
y
- ) ~
~ - ~
~
-
' ~
- ~
~
~
-
' ~
- ~
~
~
-
' ~
- ~
~
~
-
' ~
- ~
~
~
-
-
-
-
-
-
-
-
-
-
-
-
-
1013
CC 07-02-2024
1013 of 1296
Clayey Sand (SC) [Fill]
moist, brown, fine sand, some fine subangular
to subrounded gravel, some brick and
concrete fragments
decreasing gravel content at 2.5 feet
Bottom of Boring at 5.0 feet.
100

0.1 0.1

0.1 0.1

0.1 None
NOTES

LOGGED BY BTM
DRILLING METHOD Hand Auger

DRILLING CONTRACTOR
GROUND WATER LEVELS:

DATE STARTED 1/25/22 DATE COMPLETED 1/25/22 GROUND ELEVATION BORING DEPTH 5 ft.

AT TIME OF DRILLING Not Encountered
AT END OF DRILLING Not Encountered

LATITUDE LONGITUDE
DEPTH (ft)

0.0 2.5

5.0 7.5

10.0 SYMBOL
ELEVATION (ft)
PROJECT NAME Mitty Park
PROJECT NUMBER 1340-1-1
PROJECT LOCATION San Jose, CA
BORING NUMBER SS-6C
PAGE 1 OF 1
This log is a part of a report by Cornerstone Earth Group, and should not be used as a stand-alone document. This description applies only to the location of the exploration at the time of drilling. Subsurface conditions may differ at other locations and may change at this location with time. The description presented is a simplification of actual conditions encountered. Transitions between soil types may be gradual.

DESCRIPTION
Percent Recovery
(%)
OVM Reading
(ppm)
Odors or Discoloration
Notes
Sample Type and Interval
Sample Submitted for
Laboratory Analysis
N-Value (uncorrected)
blows per foot
CORNERSTONE GE LOG DEC192007 - CORNERSTONE 0812.GDT - 2/4/22 14:13 - P:\DRAFTING\GINT FILES\1340-1-1 MITTY PARK GE.GPJ DRAFT
Ii! CORNERSTONE

EARTH GROUP
'¥-
y
- ) ~
~ - ~
~
-
' ~
- ~
~
~
-
' ~
- ~
~
~
-
' ~
- ~
~
~
-
' ~
- ~
~
~
-
-
-
-
-
-
-
-
-
-
-
-
-
1014
CC 07-02-2024
1014 of 1296
Clayey Sand (SC) [Fill]
moist, brown, fine sand, some fine subangular
to subrounded gravel, some brick and
concrete fragments
decreasing gravel content at 4 feet
Bottom of Boring at 5.0 feet.
100

0.1 0.1

0.1 0.1

0.1 None
NOTES

LOGGED BY BTM
DRILLING METHOD Hand Auger

DRILLING CONTRACTOR
GROUND WATER LEVELS:

DATE STARTED 1/25/22 DATE COMPLETED 1/25/22 GROUND ELEVATION BORING DEPTH 5 ft.

AT TIME OF DRILLING Not Encountered
AT END OF DRILLING Not Encountered

LATITUDE LONGITUDE
DEPTH (ft)

0.0 2.5

5.0 7.5

10.0 SYMBOL
ELEVATION (ft)
PROJECT NAME Mitty Park
PROJECT NUMBER 1340-1-1
PROJECT LOCATION San Jose, CA
BORING NUMBER SS-12
PAGE 1 OF 1
This log is a part of a report by Cornerstone Earth Group, and should not be used as a stand-alone document. This description applies only to the location of the exploration at the time of drilling. Subsurface conditions may differ at other locations and may change at this location with time. The description presented is a simplification of actual conditions encountered. Transitions between soil types may be gradual.

DESCRIPTION
Percent Recovery
(%)
OVM Reading
(ppm)
Odors or Discoloration
Notes
Sample Type and Interval
Sample Submitted for
Laboratory Analysis
N-Value (uncorrected)
blows per foot
CORNERSTONE GE LOG DEC192007 - CORNERSTONE 0812.GDT - 2/4/22 14:13 - P:\DRAFTING\GINT FILES\1340-1-1 MITTY PARK GE.GPJ DRAFT
Ii! CORNERSTONE

EARTH GROUP
'¥-
y
- ) ~
~ - ~
~
-
' ~
- ~
~
~
-
' ~
- ~
~
~
-
' ~
- ~
~
~
-
' ~
- ~
~
~
-
-
-
-
-
-
-
-
-
-
-
-
-
1015
CC 07-02-2024
1015 of 1296
Clayey Sand (SC) [Fill]
moist, brown, fine sand, trace fine subangular
to subrounded gravel
Clayey Sand (SC) [Fill]
moist, brown, fine sand
Bottom of Boring at 5.0 feet.
100

0.0 0.0

0.0 0.0

0.0 None
NOTES

LOGGED BY BTM
DRILLING METHOD Hand Auger

DRILLING CONTRACTOR
GROUND WATER LEVELS:

DATE STARTED 1/25/22 DATE COMPLETED 1/25/22 GROUND ELEVATION BORING DEPTH 5 ft.

AT TIME OF DRILLING Not Encountered
AT END OF DRILLING Not Encountered

LATITUDE LONGITUDE
DEPTH (ft)

0.0 2.5

5.0 7.5

10.0 SYMBOL
ELEVATION (ft)
PROJECT NAME Mitty Park
PROJECT NUMBER 1340-1-1
PROJECT LOCATION San Jose, CA
BORING NUMBER SS-13
PAGE 1 OF 1
This log is a part of a report by Cornerstone Earth Group, and should not be used as a stand-alone document. This description applies only to the location of the exploration at the time of drilling. Subsurface conditions may differ at other locations and may change at this location with time. The description presented is a simplification of actual conditions encountered. Transitions between soil types may be gradual.

DESCRIPTION
Percent Recovery
(%)
OVM Reading
(ppm)
Odors or Discoloration
Notes
Sample Type and Interval
Sample Submitted for
Laboratory Analysis
N-Value (uncorrected)
blows per foot
CORNERSTONE GE LOG DEC192007 - CORNERSTONE 0812.GDT - 2/4/22 14:13 - P:\DRAFTING\GINT FILES\1340-1-1 MITTY PARK GE.GPJ DRAFT
Ii! CORNERSTONE

EARTH GROUP
'¥-
y
- ) X
X - ~
X
-
' X
- X ~
> X - ~ -----------------------
- ' X
X ~
- X
- ' X
X ~
- X
- ' X
X X X
-
-
-
-
-
-
-
-
-
-
-
-
-
1016
CC 07-02-2024
1016 of 1296
Clayey Sand (SC) [Fill]
dark gray, abundant organics
Clayey Sand (SC) [Fill]
moist, brown, fine to coarse sand, some fine
subangular to subrounded gravel, some brick
and concrete fragments
Clayey Sand (SC) [Fill]
moist, brown, fine sand, some wood chips
Bottom of Boring at 5.0 feet.
66 0.1

0.1 0.1

0.1 0.1
None
NOTES

LOGGED BY BTM
DRILLING METHOD Geoprobe 6610DT, Direct Push

DRILLING CONTRACTOR
GROUND WATER LEVELS:

DATE STARTED 1/25/22 DATE COMPLETED 1/25/22 GROUND ELEVATION BORING DEPTH 5 ft.

AT TIME OF DRILLING Not Encountered
AT END OF DRILLING Not Encountered

LATITUDE LONGITUDE
DEPTH (ft)

0.0 2.5

5.0 7.5

10.0 SYMBOL
ELEVATION (ft)
PROJECT NAME Mitty Park
PROJECT NUMBER 1340-1-1
PROJECT LOCATION San Jose, CA
BORING NUMBER SS-14
PAGE 1 OF 1
This log is a part of a report by Cornerstone Earth Group, and should not be used as a stand-alone document. This description applies only to the location of the exploration at the time of drilling. Subsurface conditions may differ at other locations and may change at this location with time. The description presented is a simplification of actual conditions encountered. Transitions between soil types may be gradual.

DESCRIPTION
Percent Recovery
(%)
OVM Reading
(ppm)
Odors or Discoloration
Notes
Sample Type and Interval
Sample Submitted for
Laboratory Analysis
N-Value (uncorrected)
blows per foot
CORNERSTONE GE LOG DEC192007 - CORNERSTONE 0812.GDT - 2/4/22 14:13 - P:\DRAFTING\GINT FILES\1340-1-1 MITTY PARK GE.GPJ DRAFT
Ii! CORNERSTONE

EARTH GROUP
'¥-
y
-
~ l r ~
- ~--------------------~ X
' - X
X ~
- X
' -
- ' X
X ~
- X
- ' X
X ~
- X
- ' X
X X X
-
-
-
-
-
-
-
-
-
-
-
-
-
1017
CC 07-02-2024
1017 of 1296
Well Graded Gravel with Silt and Sand
(GW-GM) [Fill]
moist, light gray, aggregate base
Clayey Sand (SC) [Fill]
moist, brown, fine sand, some fine subangular
to subrounded gravel, some brick and
concrete fragments
Bottom of Boring at 5.0 feet.
100

0.1 0.1

0.1 0.1

0.1 None
NOTES

LOGGED BY BTM
DRILLING METHOD Hand Auger

DRILLING CONTRACTOR
GROUND WATER LEVELS:

DATE STARTED 1/25/22 DATE COMPLETED 1/25/22 GROUND ELEVATION BORING DEPTH 5 ft.

AT TIME OF DRILLING Not Encountered
AT END OF DRILLING Not Encountered

LATITUDE LONGITUDE
DEPTH (ft)

0.0 2.5

5.0 7.5

10.0 SYMBOL
ELEVATION (ft)
PROJECT NAME Mitty Park
PROJECT NUMBER 1340-1-1
PROJECT LOCATION San Jose, CA
BORING NUMBER SS-15
PAGE 1 OF 1
This log is a part of a report by Cornerstone Earth Group, and should not be used as a stand-alone document. This description applies only to the location of the exploration at the time of drilling. Subsurface conditions may differ at other locations and may change at this location with time. The description presented is a simplification of actual conditions encountered. Transitions between soil types may be gradual.

DESCRIPTION
Percent Recovery
(%)
OVM Reading
(ppm)
Odors or Discoloration
Notes
Sample Type and Interval
Sample Submitted for
Laboratory Analysis
N-Value (uncorrected)
blows per foot
CORNERSTONE GE LOG DEC192007 - CORNERSTONE 0812.GDT - 2/4/22 14:13 - P:\DRAFTING\GINT FILES\1340-1-1 MITTY PARK GE.GPJ DRAFT
Ii! CORNERSTONE

EARTH GROUP
'¥-
y
- ) ~
~ - ~
~
-
' ~
- ~
~
~
-
' ~
- ~
~
N - » ----------------------- ) ~
) ~ - ~
~
-
' ~
- ~
~
) ~
-
-
-
-
-
-
-
-
-
-
-
-
-
1018
CC 07-02-2024
1018 of 1296
Clayey Sand with Gravel (SC) [Fill]
moist, brown, fine to coarse sand, fine
subangular gravel
Clayey Sand (SC) [Fill]
moist, brown, fine sand, some fine subangular
to subrounded gravel, trace brick and concrete
fragments
Bottom of Boring at 5.0 feet.
80 0.5

0.5 0.5

0.5 0.5
None
NOTES

LOGGED BY BTM
DRILLING METHOD Geoprobe 6610DT, Direct Push

DRILLING CONTRACTOR
GROUND WATER LEVELS:

DATE STARTED 1/25/22 DATE COMPLETED 1/25/22 GROUND ELEVATION BORING DEPTH 5 ft.

AT TIME OF DRILLING Not Encountered
AT END OF DRILLING Not Encountered

LATITUDE LONGITUDE
DEPTH (ft)

0.0 2.5

5.0 7.5

10.0 SYMBOL
ELEVATION (ft)
PROJECT NAME Mitty Park
PROJECT NUMBER 1340-1-1
PROJECT LOCATION San Jose, CA
BORING NUMBER SS-16
PAGE 1 OF 1
This log is a part of a report by Cornerstone Earth Group, and should not be used as a stand-alone document. This description applies only to the location of the exploration at the time of drilling. Subsurface conditions may differ at other locations and may change at this location with time. The description presented is a simplification of actual conditions encountered. Transitions between soil types may be gradual.

DESCRIPTION
Percent Recovery
(%)
OVM Reading
(ppm)
Odors or Discoloration
Notes
Sample Type and Interval
Sample Submitted for
Laboratory Analysis
N-Value (uncorrected)
blows per foot
CORNERSTONE GE LOG DEC192007 - CORNERSTONE 0812.GDT - 2/4/22 14:13 - P:\DRAFTING\GINT FILES\1340-1-1 MITTY PARK GE.GPJ DRAFT
Ii! CORNERSTONE

EARTH GROUP
'¥-
y
- ) ~
~ - ~
~
-
~-----------------------
~
- ~
~
- ' ~
~
- ~
~
- ' ~
~ - ~
~
-
' ~
~ - ~
) ~
-
-
-
-
-
-
-
-
-
-
-
-
-
1019
CC 07-02-2024
1019 of 1296
Clayey Sand with Gravel (SC) [Fill]
moist, brown, fine to coarse sand, fine
subangular gravel
Clayey Sand (SC) [Fill]
moist, brown, fine sand, trace brick fragments
Fat Clay with Sand (CH) [Fill]
moist, brown, fine sand, trace brick fragments
Clayey Sand with Gravel (SC) [Fill]
moist, brown, fine to coarse sand, fine
subangular gravel, trace brick and concrete
fragments
Bottom of Boring at 5.0 feet.
66 0.1

0.1 0.2

0.3 None
NOTES

LOGGED BY BTM
DRILLING METHOD Geoprobe 6610DT, Direct Push

DRILLING CONTRACTOR
GROUND WATER LEVELS:

DATE STARTED 1/25/22 DATE COMPLETED 1/25/22 GROUND ELEVATION BORING DEPTH 5 ft.

AT TIME OF DRILLING Not Encountered
AT END OF DRILLING Not Encountered

LATITUDE LONGITUDE
DEPTH (ft)

0.0 2.5

5.0 7.5

10.0 SYMBOL
ELEVATION (ft)
PROJECT NAME Mitty Park
PROJECT NUMBER 1340-1-1
PROJECT LOCATION San Jose, CA
BORING NUMBER SS-17
PAGE 1 OF 1
This log is a part of a report by Cornerstone Earth Group, and should not be used as a stand-alone document. This description applies only to the location of the exploration at the time of drilling. Subsurface conditions may differ at other locations and may change at this location with time. The description presented is a simplification of actual conditions encountered. Transitions between soil types may be gradual.

DESCRIPTION
Percent Recovery
(%)
OVM Reading
(ppm)
Odors or Discoloration
Notes
Sample Type and Interval
Sample Submitted for
Laboratory Analysis
N-Value (uncorrected)
blows per foot
CORNERSTONE GE LOG DEC192007 - CORNERSTONE 0812.GDT - 2/4/22 14:13 - P:\DRAFTING\GINT FILES\1340-1-1 MITTY PARK GE.GPJ DRAFT
Ii! CORNERSTONE
EARTH GROU p
'¥-
y
- ) ~
- ~ l r
'
L ____________________ J
~
- ~
~
- ~
' ) ~
- x--------------------- -
- ~ -----------------------
- ~
' ~
- ~
~
- ~
' ~
- ~
~
-
-
-
-
-
-
-
-
-
-
-
-
-
1020
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Clayey Sand with Gravel (SC) [Fill]
moist, brown, fine sand, some brick, concrete
and AC fragments, some wood chips
Bottom of Boring at 5.0 feet.
100

0.1 0.1

0.1 0.1

0.1 None
NOTES

LOGGED BY BTM
DRILLING METHOD Hand Auger

DRILLING CONTRACTOR
GROUND WATER LEVELS:

DATE STARTED 1/25/22 DATE COMPLETED 1/25/22 GROUND ELEVATION BORING DEPTH 5 ft.

AT TIME OF DRILLING Not Encountered
AT END OF DRILLING Not Encountered

LATITUDE LONGITUDE
DEPTH (ft)

0.0 2.5

5.0 7.5

10.0 SYMBOL
ELEVATION (ft)
PROJECT NAME Mitty Park
PROJECT NUMBER 1340-1-1
PROJECT LOCATION San Jose, CA
BORING NUMBER SS-18
PAGE 1 OF 1
This log is a part of a report by Cornerstone Earth Group, and should not be used as a stand-alone document. This description applies only to the location of the exploration at the time of drilling. Subsurface conditions may differ at other locations and may change at this location with time. The description presented is a simplification of actual conditions encountered. Transitions between soil types may be gradual.

DESCRIPTION
Percent Recovery
(%)
OVM Reading
(ppm)
Odors or Discoloration
Notes
Sample Type and Interval
Sample Submitted for
Laboratory Analysis
N-Value (uncorrected)
blows per foot
CORNERSTONE GE LOG DEC192007 - CORNERSTONE 0812.GDT - 2/4/22 14:13 - P:\DRAFTING\GINT FILES\1340-1-1 MITTY PARK GE.GPJ DRAFT
Ii! CORNERSTONE

EARTH GROUP
'¥-
y
- ) ~
~ - ~
~
-
' ~
- ~
~
~
-
' ~
- ~
~
~
-
' ~
- ~
~
~
-
' ~
- ~
~
~
-
-
-
-
-
-
-
-
-
-
-
-
-
1021
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Clayey Sand (SC) [Fill]
moist, brown, fine sand, some fine subangular
to subrounded gravel, trace brick, concrete
and AC fragments
Clayey Sand (SC) [Fill]
moist, brown, fine sand, some brick, concrete
and AC fragments
Bottom of Boring at 5.0 feet.
100

0.1 0.1

0.1 0.1

0.1 0.1

0.1 0.1

0.1 0.1
None
NOTES

LOGGED BY BTM
DRILLING METHOD Hand Auger

DRILLING CONTRACTOR
GROUND WATER LEVELS:

DATE STARTED 1/25/22 DATE COMPLETED 1/25/22 GROUND ELEVATION BORING DEPTH 5 ft.

AT TIME OF DRILLING Not Encountered
AT END OF DRILLING Not Encountered

LATITUDE LONGITUDE
DEPTH (ft)

0.0 2.5

5.0 7.5

10.0 SYMBOL
ELEVATION (ft)
PROJECT NAME Mitty Park
PROJECT NUMBER 1340-1-1
PROJECT LOCATION San Jose, CA
BORING NUMBER SS-19
PAGE 1 OF 1
This log is a part of a report by Cornerstone Earth Group, and should not be used as a stand-alone document. This description applies only to the location of the exploration at the time of drilling. Subsurface conditions may differ at other locations and may change at this location with time. The description presented is a simplification of actual conditions encountered. Transitions between soil types may be gradual.

DESCRIPTION
Percent Recovery
(%)
OVM Reading
(ppm)
Odors or Discoloration
Notes
Sample Type and Interval
Sample Submitted for
Laboratory Analysis
N-Value (uncorrected)
blows per foot
CORNERSTONE GE LOG DEC192007 - CORNERSTONE 0812.GDT - 2/4/22 14:13 - P:\DRAFTING\GINT FILES\1340-1-1 MITTY PARK GE.GPJ DRAFT
Ii! CORNERSTONE

EARTH GROUP
'¥-
y
- ) ~
~ - ~
~
- ~ ----------------------- > ~
- ~
~
- ~
' ~
- ~
~
- ~
' ~
- ~
~
- ~
' ~
- ~
~
-
-
-
-
-
-
-
-
-
-
-
-
-
1022
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Lawrence Mitty Park and Trail
Cupertino, California
1340-1-1
APPENDIX D – LABORATORY DATA REPORTS
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CORNERSTONE

EARTH GROUP
1023
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Cornerstone Earth Group
1259 Oakmead Parkway
Sunnyvale, California 94035
Tel: (408) 245-4600
Fax: (408) 245-4620
RE: Mitty Way and Lawrence Expressway
Torrent Laboratory, Inc. received 24 sample(s) on January 25, 2022 for the analyses presented in the following Report.

Dear Ron Helm:

Work Order No.: 2201192 Rev: 1
All data for associated QC met EPA or laboratory specification(s) except where noted in the case narrative.

Torrent Laboratory, Inc. is certified by the State of California, ELAP #1991. If you have any questions regarding these test results, please feel free to contact the Project Management Team at (408)263-5258; ext 204.

Date
February 01, 2022
Kathie Evans
Project Manager
Total Page Count: 42 Page 1 of 42
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Date: 2/1/2022
Client: Cornerstone Earth Group
Project: Mitty Way and Lawrence Expressway
Work Order: 2201192

CASE NARRATIVE
Unless otherwise indicated in the following narrative, no issues encountered with the receiving, preparation, analysis or reporting of the results associated with this work order.

Unless otherwise indicated in the following narrative, no results have been method and/or field blank corrected.

Reported results relate only to the items/samples tested by the laboratory.

This report shall not be reproduced, except in full, without the written approval of Torrent Laboratory, Inc.

Results reported on a dry weight basis.

REVISIONS
Report revised to include STLC and TCLP data.

STLC
Note: Extraction of 50 g sample / 500g 0.2M Sodium Citrate Solution was performed according to wet extraction procedure (WET) which was rotated in a rotary shaker for 48 hours (+/- 4 hours).

Date Prepared: 2/3/22 at 6:00 PM to 2/5/22 at 2:30 PM
TCLP
Note: Extraction of 100 g sample/2000 g TCLP Fluid #1 was performed according to Toxicity Characteristic Leaching Procedure (SW-846 1311TCLP) which was rotated in a rotary shaker@ 32 RPM for 18 hours (+/- 2 hours).

Date Prepared: 2/8/22 at 8:30 PM to 2/9/22 at 12:31PM
Rev. 1 (2/9/22)
Total Page Count: 42 Page 2 of 42
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Report prepared for: Ron Helm
Cornerstone Earth Group
Date Received: 01/25/22
Date Reported: 02/01/22
Sample Result Summary
SS-19 (0-1) 2201192-001
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 9.37 %
Dry Weight Factor ASTM D2216-90 111 1.09 %
Lead SW6010B 1 0.13 3.3 6.70 mg/Kg
SS-19 (2-3) 2201192-002
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 12.2 %
Dry Weight Factor ASTM D2216-90 111 1.12 %
Lead SW6010B 1 0.13 3.4 8.12 mg/Kg
SS-19 (4-5) 2201192-003
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 11.3 %
Dry Weight Factor ASTM D2216-90 111 1.11 %
Lead SW6010B 1 0.13 3.3 8.55 mg/Kg
SS-14 (0-1) 2201192-004
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 11.8 %
Dry Weight Factor ASTM D2216-90 111 1.12 %
Lead SW6010B 1 0.13 3.4 49.9 mg/Kg
SS-14 (2-3) 2201192-005
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 14.1 %
Dry Weight Factor ASTM D2216-90 111 1.14 %
Lead SW6010B 1 0.14 3.4 45.1 mg/Kg
SS-14 (4-5) 2201192-006
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 28.5 %
Dry Weight Factor ASTM D2216-90 111 1.29 %
Lead SW6010B 1 0.15 3.9 8.58 mg/Kg
Total Page Count: 42 Page 3 of 42
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Report prepared for: Ron Helm
Cornerstone Earth Group
Date Received: 01/25/22
Date Reported: 02/01/22
Sample Result Summary
SS-18 (0-1) 2201192-007
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 17.5 %
Dry Weight Factor ASTM D2216-90 111 1.18 %
Lead SW6010B 1 0.14 3.5 9.09 mg/Kg
SS-18 (2-3) 2201192-008
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 14.4 %
Dry Weight Factor ASTM D2216-90 111 1.14 %
Lead SW6010B 1 0.14 3.4 7.87 mg/Kg
SS-18 (4-5) 2201192-009
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 14.7 %
Dry Weight Factor ASTM D2216-90 111 1.15 %
Lead SW6010B 1 0.14 3.5 113 mg/Kg
Lead (STLC) SW6010B 1 0.050 0.20 4.60 mg/L
SS-17 (0-1) 2201192-010
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 12.7 %
Dry Weight Factor ASTM D2216-90 111 1.13 %
Lead SW6010B 1 0.14 3.4 9.10 mg/Kg
SS-17 (2-3) 2201192-011
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 17.7 %
Dry Weight Factor ASTM D2216-90 111 1.18 %
Lead SW6010B 1 0.14 3.5 5.90 mg/Kg
SS-17 (4-5) 2201192-012
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 13.2 %
Dry Weight Factor ASTM D2216-90 111 1.13 %
Lead SW6010B 1 0.14 3.4 6.78 mg/Kg
Total Page Count: 42 Page 4 of 42
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Report prepared for: Ron Helm
Cornerstone Earth Group
Date Received: 01/25/22
Date Reported: 02/01/22
Sample Result Summary
SS-1C (0-1) 2201192-013
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 14.3 %
Dry Weight Factor ASTM D2216-90 111 1.14 %
Lead SW6010B 1 0.14 3.4 20.5 mg/Kg
SS-1C (2-3) 2201192-014
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 14.8 %
Dry Weight Factor ASTM D2216-90 111 1.15 %
Lead SW6010B 1 0.14 3.5 7.36 mg/Kg
SS-1C (4-5) 2201192-015
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 8.84 %
Dry Weight Factor ASTM D2216-90 111 1.09 %
Lead SW6010B 1 0.13 3.3 6.38 mg/Kg
SS-1A (0-1) 2201192-016
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 6.61 %
Dry Weight Factor ASTM D2216-90 111 1.07 %
Lead SW6010B 1 0.13 3.2 26.5 mg/Kg
SS-1A (2-3) 2201192-017
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 14.8 %
Dry Weight Factor ASTM D2216-90 111 1.15 %
Lead SW6010B 1 0.14 3.5 9.14 mg/Kg
SS-1A (4-5) 2201192-018
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 12.9 %
Dry Weight Factor ASTM D2216-90 111 1.13 %
Lead SW6010B 1 0.14 3.4 6.55 mg/Kg
Total Page Count: 42 Page 5 of 42
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Report prepared for: Ron Helm
Cornerstone Earth Group
Date Received: 01/25/22
Date Reported: 02/01/22
Sample Result Summary
SS-1D (0-1) 2201192-019
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 11.8 %
Dry Weight Factor ASTM D2216-90 111 1.12 %
Lead SW6010B 1 0.13 3.4 216 mg/Kg
Lead (STLC) SW6010B 1 0.050 0.20 9.14 mg/L
SS-1D (2-3) 2201192-020
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 18.5 %
Dry Weight Factor ASTM D2216-90 111 1.18 %
Lead SW6010B 1 0.14 3.5 10.9 mg/Kg
SS-1D (4-5) 2201192-021
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 13.4 %
Dry Weight Factor ASTM D2216-90 111 1.13 %
Lead SW6010B 1 0.14 3.4 6.50 mg/Kg
SS-1B (0-1) 2201192-022
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 9.79 %
Dry Weight Factor ASTM D2216-90 111 1.10 %
Lead SW6010B 1 0.13 3.3 10.5 mg/Kg
SS-1B (2-3) 2201192-023
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 9.11 %
Dry Weight Factor ASTM D2216-90 111 1.09 %
Lead SW6010B 1 0.13 3.3 6.43 mg/Kg
SS-1B (4-5) 2201192-024
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 8.71 %
Dry Weight Factor ASTM D2216-90 111 1.09 %
Lead SW6010B 1 0.13 3.3 6.32 mg/Kg
Total Page Count: 42 Page 6 of 42
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SAMPLE RESULTS
Report prepared for:

Date Reported: 02/01/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 8:30
1340-1-1
Mitty Way and Lawrence Expressway
SS-19 (0-1)
Sample Matrix: Soil
Lab Sample ID: 2201192-001A
SDG:

Prep Batch ID: 1138773
Prep Batch Date/Time: 1/27/22 7:30:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463201 0.13 3.3 6.70 01/31/22 14:29 ERR Prep Batch ID: 1138790
Prep Batch Date/Time: 1/27/22 6:45:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463185 0.050 0.050 9.37 01/27/22 D2216-90
16:00 PHUY
Dry Weight Factor ASTM 1 - 463185 11 1.09 01/27/22
D2216-90
16:00 PHUY
Total Page Count: 42 Page 7 of 42
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SAMPLE RESULTS
Report prepared for:

Date Reported: 02/01/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 8:32
1340-1-1
Mitty Way and Lawrence Expressway
SS-19 (2-3)
Sample Matrix: Soil
Lab Sample ID: 2201192-002A
SDG:

Prep Batch ID: 1138773
Prep Batch Date/Time: 1/27/22 7:30:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463201 0.13 3.4 8.12 01/31/22 14:32 ERR Prep Batch ID: 1138790
Prep Batch Date/Time: 1/27/22 6:45:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463185 0.050 0.050 12.2 01/27/22 D2216-90
16:00 PHUY
Dry Weight Factor ASTM 1 - 463185 11 1.12 01/27/22
D2216-90
16:00 PHUY
Total Page Count: 42 Page 8 of 42
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SAMPLE RESULTS
Report prepared for:

Date Reported: 02/01/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 8:34
1340-1-1
Mitty Way and Lawrence Expressway
SS-19 (4-5)
Sample Matrix: Soil
Lab Sample ID: 2201192-003A
SDG:

Prep Batch ID: 1138773
Prep Batch Date/Time: 1/27/22 7:30:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463201 0.13 3.3 8.55 01/31/22 14:37 ERR Prep Batch ID: 1138790
Prep Batch Date/Time: 1/27/22 6:45:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463185 0.050 0.050 11.3 01/27/22 D2216-90
16:00 PHUY
Dry Weight Factor ASTM 1 - 463185 11 1.11 01/27/22
D2216-90
16:00 PHUY
Total Page Count: 42 Page 9 of 42
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SAMPLE RESULTS
Report prepared for:

Date Reported: 02/01/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 9:10
1340-1-1
Mitty Way and Lawrence Expressway
SS-14 (0-1)
Sample Matrix: Soil
Lab Sample ID: 2201192-004A
SDG:

Prep Batch ID: 1138773
Prep Batch Date/Time: 1/27/22 7:30:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463201 0.13 3.4 49.9 01/31/22 14:39 ERR Prep Batch ID: 1138790
Prep Batch Date/Time: 1/27/22 6:45:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463185 0.050 0.050 11.8 01/27/22 D2216-90
16:00 PHUY
Dry Weight Factor ASTM 1 - 463185 11 1.12 01/27/22
D2216-90
16:00 PHUY
Total Page Count: 42 Page 10 of 42
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SAMPLE RESULTS
Report prepared for:

Date Reported: 02/01/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 9:12
1340-1-1
Mitty Way and Lawrence Expressway
SS-14 (2-3)
Sample Matrix: Soil
Lab Sample ID: 2201192-005A
SDG:

Prep Batch ID: 1138773
Prep Batch Date/Time: 1/27/22 7:30:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463201 0.14 3.4 45.1 01/31/22 14:41 ERR Prep Batch ID: 1138790
Prep Batch Date/Time: 1/27/22 6:45:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463185 0.050 0.050 14.1 01/27/22 D2216-90
16:00 PHUY
Dry Weight Factor ASTM 1 - 463185 11 1.14 01/27/22
D2216-90
16:00 PHUY
Total Page Count: 42 Page 11 of 42
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1034 of 1296

SAMPLE RESULTS
Report prepared for:

Date Reported: 02/01/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 9:14
1340-1-1
Mitty Way and Lawrence Expressway
SS-14 (4-5)
Sample Matrix: Soil
Lab Sample ID: 2201192-006A
SDG:

Prep Batch ID: 1138773
Prep Batch Date/Time: 1/27/22 7:30:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463201 0.15 3.9 8.58 01/31/22 14:42 ERR Prep Batch ID: 1138790
Prep Batch Date/Time: 1/27/22 6:45:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463185 0.050 0.050 28.5 01/27/22 D2216-90
16:00 PHUY
Dry Weight Factor ASTM 1 - 463185 11 1.29 01/27/22
D2216-90
16:00 PHUY
Total Page Count: 42 Page 12 of 42
DRAFT

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I I I I I I
483 S i nclair..- Fronta ge Rd-,. M i lpit ta.s ., CA 9 5 0 35, I ,raJ: 408. 263 . 5258 I '1'.ax: 408. 263 . 829·3 I vvvvvv.to rent lab-co m 1035
CC 07-02-2024
1035 of 1296

SAMPLE RESULTS
Report prepared for:

Date Reported: 02/01/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 9:40
1340-1-1
Mitty Way and Lawrence Expressway
SS-18 (0-1)
Sample Matrix: Soil
Lab Sample ID: 2201192-007A
SDG:

Prep Batch ID: 1138773
Prep Batch Date/Time: 1/27/22 7:30:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463201 0.14 3.5 9.09 01/31/22 14:44 ERR Prep Batch ID: 1138790
Prep Batch Date/Time: 1/27/22 6:45:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463185 0.050 0.050 17.5 01/27/22 D2216-90
16:00 PHUY
Dry Weight Factor ASTM 1 - 463185 11 1.18 01/27/22
D2216-90
16:00 PHUY
Total Page Count: 42 Page 13 of 42
DRAFT

I I I I I I

I I I I I I
483 S i nclair..- Fronta ge Rd-,. M i lpit ta.s ., CA 9 5 0 35, I ,raJ: 408. 263 . 5258 I '1'.ax: 408. 263 . 829·3 I vvvvvv.to rent lab-co m 1036
CC 07-02-2024
1036 of 1296

SAMPLE RESULTS
Report prepared for:

Date Reported: 02/01/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 9:42
1340-1-1
Mitty Way and Lawrence Expressway
SS-18 (2-3)
Sample Matrix: Soil
Lab Sample ID: 2201192-008A
SDG:

Prep Batch ID: 1138773
Prep Batch Date/Time: 1/27/22 7:30:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463201 0.14 3.4 7.87 01/31/22 14:46 ERR Prep Batch ID: 1138790
Prep Batch Date/Time: 1/27/22 6:45:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463185 0.050 0.050 14.4 01/27/22 D2216-90
16:00 PHUY
Dry Weight Factor ASTM 1 - 463185 11 1.14 01/27/22
D2216-90
16:00 PHUY
Total Page Count: 42 Page 14 of 42
DRAFT

I I I I I I

I I I I I I
483 S i nclair..- Fronta ge Rd-,. M i lpit ta.s ., CA 9 5 0 35, I ,raJ: 408. 263 . 5258 I '1'.ax: 408. 263 . 829·3 I vvvvvv.to rent lab-co m 1037
CC 07-02-2024
1037 of 1296

SAMPLE RESULTS
Report prepared for:

Date Reported: 02/01/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 9:44
1340-1-1
Mitty Way and Lawrence Expressway
SS-18 (4-5)
Sample Matrix: Soil
Lab Sample ID: 2201192-009A
SDG:

Prep Batch ID: 1138773
Prep Batch Date/Time: 1/27/22 7:30:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463201 0.14 3.5 113 01/31/22 14:47 ERR Prep Batch ID: 1139037
Prep Batch Date/Time: 2/8/22 8:30:00PM
Prep Analyst: PHUFANO
Prep Method: WET/3010B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead (STLC) SW6010B 1 mg/L 463422 0.050 0.20 4.60 02/09/22 11:13 ERR Prep Batch ID: 1139038
Prep Batch Date/Time: 2/9/22 2:30:00PM
Prep Analyst: ERAGUDO
Prep Method: 1311/3010B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead (TCLP) SW6010B 1 mg/L 463438 0.050 0.20 ND 02/09/22 17:22 ERR Prep Batch ID: 1138790
Prep Batch Date/Time: 1/27/22 6:45:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463185 0.050 0.050 14.7 01/27/22 D2216-90
16:00 PHUY
Dry Weight Factor ASTM 1 - 463185 11 1.15 01/27/22
D2216-90
16:00 PHUY
Total Page Count: 42 Page 15 of 42
DRAFT

I I I I I I

I I I I I I

I I I I I I

I I I I I I
483 S i nclair..- Fronta ge Rd-,. M i lpit ta.s ., CA 9 5 0 35, I ,raJ: 408. 263 . 5258 I '1'.ax: 408. 263 . 829·3 I vvvvvv.to rent lab-co m 1038
CC 07-02-2024
1038 of 1296

SAMPLE RESULTS
Report prepared for:

Date Reported: 02/01/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 9:50
1340-1-1
Mitty Way and Lawrence Expressway
SS-17 (0-1)
Sample Matrix: Soil
Lab Sample ID: 2201192-010A
SDG:

Prep Batch ID: 1138773
Prep Batch Date/Time: 1/27/22 7:30:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463201 0.14 3.4 9.10 01/31/22 14:49 ERR Prep Batch ID: 1138790
Prep Batch Date/Time: 1/27/22 6:45:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463185 0.050 0.050 12.7 01/27/22 D2216-90
16:00 PHUY
Dry Weight Factor ASTM 1 - 463185 11 1.13 01/27/22
D2216-90
16:00 PHUY
Total Page Count: 42 Page 16 of 42
DRAFT

I I I I I I

I I I I I I
483 S i nclair..- Fronta ge Rd-,. M i lpit ta.s ., CA 9 5 0 35, I ,raJ: 408. 263 . 5258 I '1'.ax: 408. 263 . 829·3 I vvvvvv.to rent lab-co m 1039
CC 07-02-2024
1039 of 1296

SAMPLE RESULTS
Report prepared for:

Date Reported: 02/01/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 9:52
1340-1-1
Mitty Way and Lawrence Expressway
SS-17 (2-3)
Sample Matrix: Soil
Lab Sample ID: 2201192-011A
SDG:

Prep Batch ID: 1138773
Prep Batch Date/Time: 1/27/22 7:30:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463201 0.14 3.5 5.90 01/31/22 14:50 ERR Prep Batch ID: 1138790
Prep Batch Date/Time: 1/27/22 6:45:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463185 0.050 0.050 17.7 01/27/22 D2216-90
16:00 PHUY
Dry Weight Factor ASTM 1 - 463185 11 1.18 01/27/22
D2216-90
16:00 PHUY
Total Page Count: 42 Page 17 of 42
DRAFT

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I I I I I I
483 S i nclair..- Fronta ge Rd-,. M i lpit ta.s ., CA 9 5 0 35, I ,raJ: 408. 263 . 5258 I '1'.ax: 408. 263 . 829·3 I vvvvvv.to rent lab-co m 1040
CC 07-02-2024
1040 of 1296

SAMPLE RESULTS
Report prepared for:

Date Reported: 02/01/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 9:54
1340-1-1
Mitty Way and Lawrence Expressway
SS-17 (4-5)
Sample Matrix: Soil
Lab Sample ID: 2201192-012A
SDG:

Prep Batch ID: 1138773
Prep Batch Date/Time: 1/27/22 7:30:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463201 0.14 3.4 6.78 01/31/22 14:52 ERR Prep Batch ID: 1138790
Prep Batch Date/Time: 1/27/22 6:45:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463185 0.050 0.050 13.2 01/27/22 D2216-90
16:00 PHUY
Dry Weight Factor ASTM 1 - 463185 11 1.13 01/27/22
D2216-90
16:00 PHUY
Total Page Count: 42 Page 18 of 42
DRAFT

I I I I I I

I I I I I I
483 S i nclair..- Fronta ge Rd-,. M i lpit ta.s ., CA 9 5 0 35, I ,raJ: 408. 263 . 5258 I '1'.ax: 408. 263 . 829·3 I vvvvvv.to rent lab-co m 1041
CC 07-02-2024
1041 of 1296

SAMPLE RESULTS
Report prepared for:

Date Reported: 02/01/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 10:00
1340-1-1
Mitty Way and Lawrence Expressway
SS-1C (0-1)
Sample Matrix: Soil
Lab Sample ID: 2201192-013A
SDG:

Prep Batch ID: 1138773
Prep Batch Date/Time: 1/27/22 7:30:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463201 0.14 3.4 20.5 01/31/22 14:57 ERR Prep Batch ID: 1138790
Prep Batch Date/Time: 1/27/22 6:45:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463185 0.050 0.050 14.3 01/27/22 D2216-90
16:00 PHUY
Dry Weight Factor ASTM 1 - 463185 11 1.14 01/27/22
D2216-90
16:00 PHUY
Total Page Count: 42 Page 19 of 42
DRAFT

I I I I I I

I I I I I I
483 S i nclair..- Fronta ge Rd-,. M i lpit ta.s ., CA 9 5 0 35, I ,raJ: 408. 263 . 5258 I '1'.ax: 408. 263 . 829·3 I vvvvvv.to rent lab-co m 1042
CC 07-02-2024
1042 of 1296

SAMPLE RESULTS
Report prepared for:

Date Reported: 02/01/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 10:02
1340-1-1
Mitty Way and Lawrence Expressway
SS-1C (2-3)
Sample Matrix: Soil
Lab Sample ID: 2201192-014A
SDG:

Prep Batch ID: 1138773
Prep Batch Date/Time: 1/27/22 7:30:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463201 0.14 3.5 7.36 01/31/22 14:59 ERR Prep Batch ID: 1138790
Prep Batch Date/Time: 1/27/22 6:45:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463185 0.050 0.050 14.8 01/27/22 D2216-90
16:00 PHUY
Dry Weight Factor ASTM 1 - 463185 11 1.15 01/27/22
D2216-90
16:00 PHUY
Total Page Count: 42 Page 20 of 42
DRAFT

I I I I I I

I I I I I I
483 S i nclair..- Fronta ge Rd-,. M i lpit ta.s ., CA 9 5 0 35, I ,raJ: 408. 263 . 5258 I '1'.ax: 408. 263 . 829·3 I vvvvvv.to rent lab-co m 1043
CC 07-02-2024
1043 of 1296

SAMPLE RESULTS
Report prepared for:

Date Reported: 02/01/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 10:04
1340-1-1
Mitty Way and Lawrence Expressway
SS-1C (4-5)
Sample Matrix: Soil
Lab Sample ID: 2201192-015A
SDG:

Prep Batch ID: 1138773
Prep Batch Date/Time: 1/27/22 7:30:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463201 0.13 3.3 6.38 01/31/22 15:00 ERR Prep Batch ID: 1138790
Prep Batch Date/Time: 1/27/22 6:45:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463185 0.050 0.050 8.84 01/27/22 D2216-90
16:00 PHUY
Dry Weight Factor ASTM 1 - 463185 11 1.09 01/27/22
D2216-90
16:00 PHUY
Total Page Count: 42 Page 21 of 42
DRAFT

I I I I I I

I I I I I I
483 S i nclair..- Fronta ge Rd-,. M i lpit ta.s ., CA 9 5 0 35, I ,raJ: 408. 263 . 5258 I '1'.ax: 408. 263 . 829·3 I vvvvvv.to rent lab-co m 1044
CC 07-02-2024
1044 of 1296

SAMPLE RESULTS
Report prepared for:

Date Reported: 02/01/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 10:40
1340-1-1
Mitty Way and Lawrence Expressway
SS-1A (0-1)
Sample Matrix: Soil
Lab Sample ID: 2201192-016A
SDG:

Prep Batch ID: 1138773
Prep Batch Date/Time: 1/27/22 7:30:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463201 0.13 3.2 26.5 01/31/22 15:05 ERR Prep Batch ID: 1138790
Prep Batch Date/Time: 1/27/22 6:45:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463185 0.050 0.050 6.61 01/27/22 D2216-90
16:00 PHUY
Dry Weight Factor ASTM 1 - 463185 11 1.07 01/27/22
D2216-90
16:00 PHUY
Total Page Count: 42 Page 22 of 42
DRAFT

I I I I I I

I I I I I I
483 S i nclair..- Fronta ge Rd-,. M i lpit ta.s ., CA 9 5 0 35, I ,raJ: 408. 263 . 5258 I '1'.ax: 408. 263 . 829·3 I vvvvvv.to rent lab-co m 1045
CC 07-02-2024
1045 of 1296

SAMPLE RESULTS
Report prepared for:

Date Reported: 02/01/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 10:42
1340-1-1
Mitty Way and Lawrence Expressway
SS-1A (2-3)
Sample Matrix: Soil
Lab Sample ID: 2201192-017A
SDG:

Prep Batch ID: 1138773
Prep Batch Date/Time: 1/27/22 7:30:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463201 0.14 3.5 9.14 01/31/22 15:09 ERR Prep Batch ID: 1138790
Prep Batch Date/Time: 1/27/22 6:45:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463185 0.050 0.050 14.8 01/27/22 D2216-90
16:00 PHUY
Dry Weight Factor ASTM 1 - 463185 11 1.15 01/27/22
D2216-90
16:00 PHUY
Total Page Count: 42 Page 23 of 42
DRAFT

I I I I I I

I I I I I I
483 S i nclair..- Fronta ge Rd-,. M i lpit ta.s ., CA 9 5 0 35, I ,raJ: 408. 263 . 5258 I '1'.ax: 408. 263 . 829·3 I vvvvvv.to rent lab-co m 1046
CC 07-02-2024
1046 of 1296

SAMPLE RESULTS
Report prepared for:

Date Reported: 02/01/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 10:44
1340-1-1
Mitty Way and Lawrence Expressway
SS-1A (4-5)
Sample Matrix: Soil
Lab Sample ID: 2201192-018A
SDG:

Prep Batch ID: 1138773
Prep Batch Date/Time: 1/27/22 7:30:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463201 0.14 3.4 6.55 01/31/22 15:10 ERR Prep Batch ID: 1138790
Prep Batch Date/Time: 1/27/22 6:45:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463185 0.050 0.050 12.9 01/27/22 D2216-90
16:00 PHUY
Dry Weight Factor ASTM 1 - 463185 11 1.13 01/27/22
D2216-90
16:00 PHUY
Total Page Count: 42 Page 24 of 42
DRAFT

I I I I I I

I I I I I I
483 S i nclair..- Fronta ge Rd-,. M i lpit ta.s ., CA 9 5 0 35, I ,raJ: 408. 263 . 5258 I '1'.ax: 408. 263 . 829·3 I vvvvvv.to rent lab-co m 1047
CC 07-02-2024
1047 of 1296

SAMPLE RESULTS
Report prepared for:

Date Reported: 02/01/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 10:08
1340-1-1
Mitty Way and Lawrence Expressway
SS-1D (0-1)
Sample Matrix: Soil
Lab Sample ID: 2201192-019A
SDG:

Prep Batch ID: 1138773
Prep Batch Date/Time: 1/27/22 7:30:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463201 0.13 3.4 216 01/31/22 15:12 ERR Prep Batch ID: 1139037
Prep Batch Date/Time: 2/8/22 8:30:00PM
Prep Analyst: PHUFANO
Prep Method: WET/3010B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead (STLC) SW6010B 1 mg/L 463422 0.050 0.20 9.14 02/09/22 11:15 ERR Prep Batch ID: 1139038
Prep Batch Date/Time: 2/9/22 2:30:00PM
Prep Analyst: ERAGUDO
Prep Method: 1311/3010B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead (TCLP) SW6010B 1 mg/L 463438 0.050 0.20 ND 02/09/22 17:23 ERR Prep Batch ID: 1138790
Prep Batch Date/Time: 1/27/22 6:45:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463185 0.050 0.050 11.8 01/27/22 D2216-90
16:00 PHUY
Dry Weight Factor ASTM 1 - 463185 11 1.12 01/27/22
D2216-90
16:00 PHUY
Total Page Count: 42 Page 25 of 42
DRAFT

I I I I I I

I I I I I I

I I I I I I

I I I I I I
483 S i nclair..- Fronta ge Rd-,. M i lpit ta.s ., CA 9 5 0 35, I ,raJ: 408. 263 . 5258 I '1'.ax: 408. 263 . 829·3 I vvvvvv.to rent lab-co m 1048
CC 07-02-2024
1048 of 1296

SAMPLE RESULTS
Report prepared for:

Date Reported: 02/01/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 10:10
1340-1-1
Mitty Way and Lawrence Expressway
SS-1D (2-3)
Sample Matrix: Soil
Lab Sample ID: 2201192-020A
SDG:

Prep Batch ID: 1138773
Prep Batch Date/Time: 1/27/22 7:30:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463201 0.14 3.5 10.9 01/31/22 15:17 ERR Prep Batch ID: 1138790
Prep Batch Date/Time: 1/27/22 6:45:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463185 0.050 0.050 18.5 01/27/22 D2216-90
16:00 PHUY
Dry Weight Factor ASTM 1 - 463185 11 1.18 01/27/22
D2216-90
16:00 PHUY
Total Page Count: 42 Page 26 of 42
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SAMPLE RESULTS
Report prepared for:

Date Reported: 02/01/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 10:12
1340-1-1
Mitty Way and Lawrence Expressway
SS-1D (4-5)
Sample Matrix: Soil
Lab Sample ID: 2201192-021A
SDG:

Prep Batch ID: 1138775
Prep Batch Date/Time: 1/28/22 5:45:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463202 0.14 3.4 6.50 01/29/22 17:37 ERR Prep Batch ID: 1138791
Prep Batch Date/Time: 1/28/22 7:15:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463186 0.050 0.050 13.4 02/01/22 D2216-90
13:00 PHUY
Dry Weight Factor ASTM 1 - 463186 11 1.13 02/01/22
D2216-90
13:00 PHUY
Total Page Count: 42 Page 27 of 42
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I I I I I I
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SAMPLE RESULTS
Report prepared for:

Date Reported: 02/01/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 10:50
1340-1-1
Mitty Way and Lawrence Expressway
SS-1B (0-1)
Sample Matrix: Soil
Lab Sample ID: 2201192-022A
SDG:

Prep Batch ID: 1138775
Prep Batch Date/Time: 1/28/22 5:45:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463202 0.13 3.3 10.5 01/29/22 17:39 ERR Prep Batch ID: 1138791
Prep Batch Date/Time: 1/28/22 7:15:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463186 0.050 0.050 9.79 02/01/22 D2216-90
13:00 PHUY
Dry Weight Factor ASTM 1 - 463186 11 1.10 02/01/22
D2216-90
13:00 PHUY
Total Page Count: 42 Page 28 of 42
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I I I I I I
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SAMPLE RESULTS
Report prepared for:

Date Reported: 02/01/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 10:52
1340-1-1
Mitty Way and Lawrence Expressway
SS-1B (2-3)
Sample Matrix: Soil
Lab Sample ID: 2201192-023A
SDG:

Prep Batch ID: 1138775
Prep Batch Date/Time: 1/28/22 5:45:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463202 0.13 3.3 6.43 01/29/22 17:40 ERR Prep Batch ID: 1138791
Prep Batch Date/Time: 1/28/22 7:15:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463186 0.050 0.050 9.11 02/01/22 D2216-90
13:00 PHUY
Dry Weight Factor ASTM 1 - 463186 11 1.09 02/01/22
D2216-90
13:00 PHUY
Total Page Count: 42 Page 29 of 42
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I I I I I I
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SAMPLE RESULTS
Report prepared for:

Date Reported: 02/01/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 10:54
1340-1-1
Mitty Way and Lawrence Expressway
SS-1B (4-5)
Sample Matrix: Soil
Lab Sample ID: 2201192-024A
SDG:

Prep Batch ID: 1138775
Prep Batch Date/Time: 1/28/22 5:45:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463202 0.13 3.3 6.32 01/29/22 17:42 ERR Prep Batch ID: 1138791
Prep Batch Date/Time: 1/28/22 7:15:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463186 0.050 0.050 8.71 02/01/22 D2216-90
13:00 PHUY
Dry Weight Factor ASTM 1 - 463186 11 1.09 02/01/22
D2216-90
13:00 PHUY
Total Page Count: 42 Page 30 of 42
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MB Summary Report
Work Order:

Matrix:

Units:

Prep Method:

Analytical SW6010B
Method:

Prep Date:

Analyzed Date:
01/27/22 Prep Batch:

Analytical
Batch:
mg/Kg
3050B 1138773
Soil 463201
2201192
1/31/2022
Parameters
Method
Blank
Conc.

MDL PQL
Lab
Qualifier
Lead ND 0.10 3.00
Work Order:

Matrix:

Units:

Prep Method:

Analytical SW6010B
Method:

Prep Date:

Analyzed Date:
01/28/22 Prep Batch:

Analytical
Batch:
mg/Kg
3050B 1138775
Soil 463202
2201192
1/29/2022
Parameters
Method
Blank
Conc.

MDL PQL
Lab
Qualifier
Lead ND 0.10 3.00
Work Order:

Matrix:

Units:

Prep Method:

Analytical ASTM D2216-90
Method:

Prep Date:

Analyzed Date:
01/27/22 Prep Batch:

Analytical
Batch:
mg/L
% Water-P 1138790
Soil 463185
2201192
1/27/2022
Parameters
Method
Blank
Conc.

MDL PQL
Lab
Qualifier
Moisture, Percent 0.050 0.050 ND
Work Order:

Matrix:

Units:

Prep Method:

Analytical ASTM D2216-90
Method:

Prep Date:

Analyzed Date:
01/28/22 Prep Batch:

Analytical
Batch:
mg/L
% Water-P 1138791
Soil 463186
2201192
2/1/2022
Parameters
Method
Blank
Conc.

MDL PQL
Lab
Qualifier
Moisture, Percent 0.050 0.050 ND
Work Order:

Matrix:

Units:

Prep Method:

Analytical SW6010B
Method:

Prep Date:

Analyzed Date:
02/08/22 Prep Batch:

Analytical
Batch:
mg/L
WET/3010B 1139037
Soil 463422
2201192
2/9/2022
Parameters
Method
Blank
Conc.

MDL PQL
Lab
Qualifier
Barium (STLC) 0.020 0.20 ND
Chromium (STLC) 0.010 0.20 ND
Lead (STLC) 0.050 0.20 ND
Total Page Count: 42 Page 31 of 42
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MB Summary Report
Work Order:

Matrix:

Units:

Prep Method:

Analytical SW6010B
Method:

Prep Date:

Analyzed Date:
02/09/22 Prep Batch:

Analytical
Batch:
mg/L
1311/3010B 1139038
Soil 463438
2201192
2/9/2022
Parameters
Method
Blank
Conc.

MDL PQL
Lab
Qualifier
Chromium (TCLP) 0.010 0.20 ND
Lead (TCLP) 0.050 0.20 ND
Total Page Count: 42 Page 32 of 42
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LCS/LCSD Summary Report
Raw values are used in quality control assessment.

Work Order:

Matrix:

Units:

Prep Method:

Analytical
Method:

Prep Date:

Analyzed Date:
01/27/22 Prep Batch:

Analytical
Batch:
3050B 1138773
SW6010B 1/31/2022 463201
mg/Kg
2201192
Soil
Parameters MDL PQL
Method
Blank
Conc.

Spike
Conc.

LCS %
Recovery
LCSD %
Recovery

LCS/LCSD
% RPD
%
Recovery
Limits
% RPD
Limits
Lab
Qualifier
Lead 0.10 3.00 ND 50 97.9 97.0 1.03 80 - 120 30
Work Order:

Matrix:

Units:

Prep Method:

Analytical
Method:

Prep Date:

Analyzed Date:
01/28/22 Prep Batch:

Analytical
Batch:
3050B 1138775
SW6010B 1/29/2022 463202
mg/Kg
2201192
Soil
Parameters MDL PQL
Method
Blank
Conc.

Spike
Conc.

LCS %
Recovery
LCSD %
Recovery

LCS/LCSD
% RPD
%
Recovery
Limits
% RPD
Limits
Lab
Qualifier
Lead 0.10 3.00 ND 50 99.0 97.6 1.42 80 - 120 30
Work Order:

Matrix:

Units:

Prep Method:

Analytical
Method:

Prep Date:

Analyzed Date:
02/08/22 Prep Batch:

Analytical
Batch:

WET/3010B 1139037
SW6010B 2/9/2022 463422
mg/L
2201192
Soil
Parameters MDL PQL
Method
Blank
Conc.

Spike
Conc.

LCS %
Recovery
LCSD %
Recovery

LCS/LCSD
% RPD
%
Recovery
Limits
% RPD
Limits
Lab
Qualifier
Barium (STLC) 0.020 0.20 ND 10 101 100 0.995 80 - 120 20 Chromium (STLC) 0.010 0.20 ND 10 103 102 0.976 80 - 120 20 Lead (STLC) 0.050 0.20 ND 10 102 102 0.000 80 - 120 20
Work Order:

Matrix:

Units:

Prep Method:

Analytical
Method:

Prep Date:

Analyzed Date:
02/09/22 Prep Batch:

Analytical
Batch:
1311/3010B 1139038
SW6010B 2/9/2022 463438
mg/L
2201192
Soil
Parameters MDL PQL
Method
Blank
Conc.

Spike
Conc.

LCS %
Recovery
LCSD %
Recovery

LCS/LCSD
% RPD
%
Recovery
Limits
% RPD
Limits
Lab
Qualifier
Chromium (TCLP) 0.010 0.20 ND 10 94.4 95.4 1.05 80 - 120 20 Lead (TCLP) 0.050 0.20 ND 10 93.1 94.4 1.39 80 - 120 20 Total Page Count: 42 Page 33 of 42
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MS/MSD Summary Report
Raw values are used in quality control assessment.

Work Order: 2201192
Analyzed Date:

Prep Date:

Matrix:

Prep Method: 01/27/22
Spiked Sample: 2201192-015A
Analytical
Method:

Prep Batch:

Units:

Analytical
Batch:
3050B 1138773
Soil 463201
mg/Kg
SW6010B 1/31/2022
Parameters MDL PQL Sample
Conc.

Spike
Conc.

MS %
Recovery
MSD %
Recovery
MS/MSD
% RPD
%
Recovery
Limits
% RPD
Limits
Lab
Qualifier
Lead 0.10 5.00 6.38 50 86.8 86.7 0.000 67.9 - 118 30
Total Page Count: 42 Page 34 of 42
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Duplicate QC Summary Report
Work Order:

Matrix:

Units:

Prep Method:

Analytical
Method:

Prep Date:

Analyzed
Date:
1/27/2022 Prep Batch:

Analytical
Batch:
01/28/22
2201192
Lab Sample ID: 2201192-010A-DUP-1138790
% Water-P 1138790
ASTM D2216-90 463185
Parameters MDL PQL Sample
Result
Duplicate
Result
% RPD
Moisture, Percent 0.050 0.0500 12.7 12.0 5.67
Work Order:

Matrix:

Units:

Prep Method:

Analytical
Method:

Prep Date:

Analyzed
Date:
1/27/2022 Prep Batch:

Analytical
Batch:
01/28/22
2201192
Lab Sample ID: 2201192-020A-DUP-1138790
% Water-P 1138790
ASTM D2216-90 463185
Parameters MDL PQL Sample
Result
Duplicate
Result
% RPD
Moisture, Percent 0.050 0.0500 18.5 16.7 10.20
Total Page Count: 42 Page 35 of 42
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Laboratory Qualifiers and Definitions
Method Detection Limit (MDL) - the minimum concentration of a substance that can be measured and reported with a 99% confidence that the analyte concentration is greater than zero
Matrix Spike (MS/MSD) - Client sample spiked with identical concentrations of target analyte (s). The spiking occurs prior to the sample preparation and analysis. They are used to document the precision and bias of a method in a given sample matrix.

Matrix - the component or substrate that contains the analyte of interest (e.g., - groundwater, sediment, soil, waste water, etc) Laboratory Control Sample (LCS ad LCSD) - A known matrix spiked with compounds representative of the target analyte(s). This is used to document laboratory performance.

Duplicate - a field sample and/or laboratory QC sample prepared in duplicate following all of the same processes and procedures used on the original sample (sample duplicate, LCSD, MSD)
Blank (Method/Preparation Blank) -MB/PB - An analyte-free matrix to which all reagents are added in the same volumes/proportions as used in sample processing. The method blank is used to document contamination resulting from the analytical process.

Practical Quantitation Limit/Reporting Limit/Limit of Quantitation (PQL/RL/LOQ) - a laboratory determined value at 2 to 5 times above the MDL that can be reproduced in a manner that results in a 99% confidence level that the result is both accurate and precise. PQLs/RLs/LODs reflect all preparation factors and/or dilution factors that have been applied to the sample during the preparation and/or analytical processes.

Precision (%RPD) - The agreement among a set of replicate/duplicate measurements without regard to known value of the replicates Surrogate (S) or (Surr) - An organic compound which is similar to the target analyte(s) in chemical composition and behavior in the analytical process, but which is not normally found in environmental samples. Surrogates are used in most organic analysis to demonstrate matrix compatibility with the chosen method of analysis
Tentatively Identified Compound (TIC) - A compound not contained within the analytical calibration standards but present in the GCMS library of defined compounds. When the library is searched for an unknown compound, it can frequently give a tentative identification to the compound based on retention time and primary and secondary ion match. TICs are reported as estimates and are candidates for further investigation.

Units: the unit of measure used to express the reported result - mg/L and mg/Kg (equivalent to PPM - parts per million in liquid and solid), ug/L and ug/Kg (equivalent to PPB - parts per billion in liquid and solid), ug/m3, mg/m3, ppbv and ppmv (all units of measure for reporting concentrations in air), % ( equivalent to 10000 ppm or 1,000,000 ppb), ug/Wipe ( concentration found on the surface of a single Wipe usually taken over a 100cm2 surface) B - Indicates when the analyte is found in the associated method or preparation blank D - Surrogate is not recoverable due to the necessary dilution of the sample E - Indicates the reportable value is outside of the calibration range of the instrument but within the linear range of the instrument (unless otherwise noted) Values reported with an E qualifier should be considered as estimated.

H- Indicates that the recommended holding time for the analyte or compound has been exceeded J- Indicates a value between the method MDL and PQL and that the reported concentration should be considered as estimated rather the quantitative NA - Not Analyzed
N/A - Not Applicable
ND - Not Detected at a concentration greater than the PQL/RL or, if reported to the MDL, at greater than the MDL.

NR - Not recoverable - a matrix spike concentration is not recoverable due to a concentration within the original sample that is greater than four times the spike concentration added
R- The % RPD between a duplicate set of samples is outside of the absolute values established by laboratory control charts S- Spike recovery is outside of established method and/or laboratory control limits. Further explanation of the use of this qualifier should be included within a case narrative
X -Used to indicate that a value based on pattern identification is within the pattern range but not typical of the pattern found in standards.

Further explanation may or may not be provided within the sample footnote and/or the case narrative.

DEFINITIONS:

Accuracy/Bias (% Recovery) - The closeness of agreement between an observed value and an accepted reference value.

LABORATORY QUALIFIERS:

Total Page Count: 42 Page 36 of 42
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Sample Receipt Checklist
Client Name: Cornerstone Earth Group
Project Name: Mitty Way and Lawrence Expressway
Work Order No.: 2201192
Date and Time Received: 1/25/2022 2:55:00PM
Received By: HH
Physically Logged By: Lorna Imbat
Carrier Name: Client Drop Off
Checklist Completed By: Lorna Imbat
Comments:

Chain of Custody (COC) Information
Shipping Container/Cooler In Good Condition?
Custody seals intact on shipping container/cooler?
Custody seals intact on sample bottles?
Chain of custody present?
Chain of custody signed when relinquished and received? Chain of custody agrees with sample labels?
Samples in proper container/bottle?
Sufficient sample volume for indicated test?
All samples received within holding time?
Container/Temp Blank temperature in compliance?
Water-VOA vials have zero headspace?
Water-pH acceptable upon receipt?
Temperature:

Yes
Not Present
Not Present
Yes
Yes
Yes
Yes
Yes
Yes
No
No VOA vials submitted
N/A
Samples containers intact? Yes
°C
Sample Receipt Information
Sample Preservation and Hold Time (HT) Information
pH Checked by: N/A pH Adjusted by: N/A

8.0 Total Page Count: 42 Page 37 of 42
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Login Summary Report
Report Due Date:
1/25/2022
TL5119 Cornerstone Earth Group II
Mitty Way and Lawrence Expressway
1340-1-1
2/10/2022
TAT Requested:

Date Received:

Time Received:

QC Level:

Project Name:

Project # :

Comments:

Client ID:
5+ day:5
2:55 pm
Work Order # : 2201192
Requested Subbed
Tests
Test
On Hold
Sample
On Hold
Scheduled
Disposal
Collection Matrix
Date/Time
Client
Sample ID
WO Sample ID
2201192-001A Soil 07/24/22 SS-19 (0-1) 01/25/22 8:30
Met_S_AsPb Dry Wt
PMOIST
Sample Note: 6010-Lead
2201192-002A SS-19 (2-3) 01/25/22 8:32 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201192-003A SS-19 (4-5) 01/25/22 8:34 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201192-004A SS-14 (0-1) 01/25/22 9:10 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201192-005A SS-14 (2-3) 01/25/22 9:12 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201192-006A SS-14 (4-5) 01/25/22 9:14 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201192-007A SS-18 (0-1) 01/25/22 9:40 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201192-008A SS-18 (2-3) 01/25/22 9:42 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201192-009A SS-18 (4-5) 01/25/22 9:44 Soil 07/24/22
Met_S_AsPb Dry Wt
Met_S_CAM17TCLP
Met_S_CAM17STLC
PMOIST
2201192-010A SS-17 (0-1) 01/25/22 9:50 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201192-011A SS-17 (2-3) 01/25/22 9:52 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201192-012A SS-17 (4-5) 01/25/22 9:54 Soil 07/24/22
Total Page Count: 42 Page 38 of 42
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Login Summary Report
Report Due Date:
1/25/2022
TL5119 Cornerstone Earth Group II
Mitty Way and Lawrence Expressway
1340-1-1
2/10/2022
TAT Requested:

Date Received:

Time Received:

QC Level:

Project Name:

Project # :

Comments:

Client ID:
5+ day:5
2:55 pm
Work Order # : 2201192
Requested Subbed
Tests
Test
On Hold
Sample
On Hold
Scheduled
Disposal
Collection Matrix
Date/Time
Client
Sample ID
WO Sample ID
Met_S_AsPb Dry Wt
PMOIST
2201192-013A SS-1C (0-1) 01/25/22 10:00 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201192-014A SS-1C (2-3) 01/25/22 10:02 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201192-015A SS-1C (4-5) 01/25/22 10:04 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201192-016A SS-1A (0-1) 01/25/22 10:40 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201192-017A SS-1A (2-3) 01/25/22 10:42 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201192-018A SS-1A (4-5) 01/25/22 10:44 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201192-019A SS-1D (0-1) 01/25/22 10:08 Soil 07/24/22
Met_S_AsPb Dry Wt
Met_S_CAM17TCLP
Met_S_CAM17STLC
PMOIST
2201192-020A SS-1D (2-3) 01/25/22 10:10 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201192-021A SS-1D (4-5) 01/25/22 10:12 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201192-022A SS-1B (0-1) 01/25/22 10:50 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201192-023A SS-1B (2-3) 01/25/22 10:52 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201192-024A SS-1B (4-5) 01/25/22 10:54 Soil 07/24/22
Total Page Count: 42 Page 39 of 42
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Login Summary Report
Report Due Date:
1/25/2022
TL5119 Cornerstone Earth Group II
Mitty Way and Lawrence Expressway
1340-1-1
2/10/2022
TAT Requested:

Date Received:

Time Received:

QC Level:

Project Name:

Project # :

Comments:

Client ID:
5+ day:5
2:55 pm
Work Order # : 2201192
Requested Subbed
Tests
Test
On Hold
Sample
On Hold
Scheduled
Disposal
Collection Matrix
Date/Time
Client
Sample ID
WO Sample ID
Met_S_AsPb Dry Wt
PMOIST
Total Page Count: 42 Page 40 of 42
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Total Page Count: 42 Page 41 of 42
DRAFT

15.i CORNERSTONE
EARTH GROUP Chain of Custody Record
Project Mnrrnger: Ron l-l clm Sile Somplcr: llill llowe /1:>i f,'\ Dote: 1/25/2022 Cornerstone Earth Group, Inc. Tel/Fox: 408-245-4600 Lob Contoct: Kothie Evo ns Lob: Torrent 1259 Oakmead Pkwy Analysis Turnaround Time
Sunnyvale, California 94085
(408) 245-4600 Phone TAT if different from lklow - - (408) 245-4620 FAX I week 0 0 0
Project: Mitty Park □ 3 days a
Site: Milty Way and Lawrence Expressway □ 2 days ~
~ Project Number: 1340-1-1 □ I day ~
]
Somple Somple Sample -l
# of = Somple ldentifirntion Dote Time Type Matrix Cont. ~ ss-11:1 r o -11 1/25/2023 q,·.30 Liner Soil I X t?~I ~
ss- ,q (1.-~) (q,'.)l y. ~
""' r
SS - \q ( C\-<;") ~:'3~ t- 1.--(9( 9, ~
ss- l'-1 ( o-1 ~ cA/0 X - 0 )~ A
ss- 1~1 (?.-)) 0 q/1. X - ~OJ)
ss-lt.{ ( <.{ -S"J 09/1-I k -C Jb ,..
ss- 1 B (o-11 Q9YO X ~ 01 ,7 ~
5S; !9i ( i<~") CJ''fl ·~ -o ~
S~ -I ?-i ( 4 -S l O~'tt -c ),I\
s-s-n co-1') 6,\~() '/._ - ( ll I+
SS'-n (2-3) ~52. X -)/ ~f
ss- \7 C '-\- S-) 095~ X. .,.. 0/ "if'
Prescrvotion Used: I= Ice, 2= IICI; 3= ll2SO4; 4=11NO3; S=NoOII ; 6= O1her l'ossible 1/azurJ Me11tificatiot1 Sample Disposal
COC No: ]
of6COCs
Laboralory's Job No.

Laboratory's Sample Specific No1es:

D No11-llazard D Flammable □ Skin lrri1am □ Poison 8 □ U11lmow11 □ Re/urn To Clien/ D Disposal By Lab D Archive For ---Monllls Special Instructions/QC Requirements & Comments: Email results to [email protected] ; [email protected] and bmoss i corncrstonccarth.com Please Re110rt on a Dry Weight llasis ,A I
Rci'?t);/J1/1 rc/VJe Company: 1"0 '2;/11 Rccc~
Comers1one Eanh Group c·°f:;<J-f{J D(i:fl~7- ')Yrf
Relinquished by: , . Company: Date/Time: Rcceiv&i by: 0 Company: Dale/Time:

Relinquished by: Company: Date/Time: Received by: V' Company: Date/Time:
483 S i nclair- Frontage Ad.,. M i l pitas. CA 95035 I r o J: 40B.263. 5258 I f'ox: -408. 263.B293 I www . torrontlob.com 1064
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DRAFT
Ii.• CORNERSTONE

EARTH GROUP
Chain of Custody Record
Project Manngcr: non II elm Sile Sumpler: llill II owe /t::,--\1-,._, Dale: 1/25/2022 Cornerstone Earth Group, Inc. Tel/Fax: 408-245-4600 Lab Contact: Kathie Evans Lab: Torrent 1259 Oakmead Pkwy Analysis Turnaround Time
Sunnyvale, California 94085
(408) 245-4600 Phone TA'f if differcn1 from lklow -- (408) 245-4620 FAX I week 0 "' "' Projecl: Milly Park □ 3 days
t:
"' □
;; Sile: Milly Way and Lawrence Expressway 2 days ..
< Projecl Number: 1340-1 -1 □ I day C.
!:!
"'
Sumple Sample Sample 3 "
# or 'ii
Sum pie Identification Dale Time Type Matrix Co111. f-• SS-1C,(o~\) 1/25/2022 (ooo Liner Soil I X. 0:--- )I ,A
SS- IC C ,z-~) \Do?. 'f.. - Ji( ft
ss- \ C C 4-() (q)l-) X ,..... O/f5i
'SS· l.A (0-1) IOL./b X ~0 lo t
SS-lA ('2.-)) foL!c. )( - 0 7~
SS-lA {t.\• ~) !ol./~ 'I. -1-r / I 'A
5S·/"D -arg,: (o-1) to~ X ,-t-( /(fA
SS-J"D C 2.-3) /010 ...... o::i ,1
~5 -t'D {t.J-(j" ) /o !'2. X. --i ~ ')
S'S~ 1'6 ( o- l) \0~() ~ ,..-p; ti ....
'S s- \ I:) ( "2. -) J (6<;""'2 'X -IO, l~ ~
SS-- ,i '(4-f) l<:iSi.\ X ... -1 l1-1,, ,,
Prcserv,lion Used: I= Ice, 2= IICI; 3= lllSO4; 4=11NO3; S=NaOII; 6= Other Possible 1/azartl lde11tificatio11 Sample Disposal
COC No: 1
1o~ C0Cs
Laboralory's Job No.

Laboratory's Sample Specific Notes:
5t.1Mpk ID: ss · i'D tD-1
D No11-Hazard D Flammable □ Ski11 lrrira111 D Poison B D U11k11ow11 □ Return To Clien/ □ Disposal By Lab □ Archive For Monfils Special lns1rnc1ions/QC Reqnircmcn1s & Comments: Email results to [email protected] ; [email protected] and [email protected] Please Report on a Dry Weigh! Basis I
Reli~;/// 11/J ~ Company:
~'t!;,~/~ .. Receiv"!l Y· j_
Cornerstone Eanh Group /JP - -:1 r;;etJ(J-; Dar/i);,/vz- { '/)J I/ """" -- - / Relintfuished by: Company: Date/Time: Received by: (/ Company: Datlrrime:

Relinquished by: Company: Date/Time: Received by: Company: Date/Time:
483 S i n c l a ir F r ont age R d.~ M i l pi,t as .. C A 95035 I t eJ: 4O8-. 263. 5258 I -Fax: 4O8. 263. B 293 I vvvvvv. t on·-en-Ua,b~co rn )
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Cornerstone Earth Group
1259 Oakmead Parkway
Sunnyvale, California 94035
Tel: (408) 245-4600
Fax: (408) 245-4620
RE: Mitty Way and Lawrence Expressway
Torrent Laboratory, Inc. received 24 sample(s) on January 25, 2022 for the analyses presented in the following Report.

Dear Ron Helm:

Work Order No.: 2201193 Rev: 1
All data for associated QC met EPA or laboratory specification(s) except where noted in the case narrative.

Torrent Laboratory, Inc. is certified by the State of California, ELAP #1991. If you have any questions regarding these test results, please feel free to contact the Project Management Team at (408)263-5258; ext 204.

Date
February 03, 2022
Kathie Evans
Project Manager
Total Page Count: 40 Page 1 of 40
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Date: 2/3/2022
Client: Cornerstone Earth Group
Project: Mitty Way and Lawrence Expressway
Work Order: 2201193

CASE NARRATIVE
Unless otherwise indicated in the following narrative, no issues encountered with the receiving, preparation, analysis or reporting of the results associated with this work order.

Unless otherwise indicated in the following narrative, no results have been method and/or field blank corrected.

Reported results relate only to the items/samples tested by the laboratory.

This report shall not be reproduced, except in full, without the written approval of Torrent Laboratory, Inc

REVISIONS
Report revised to include STLC data.

STLC
Note: Extraction of 50 g sample / 500g 0.2M Sodium Citrate Solution was performed according to wet extraction procedure (WET) which was rotated in a rotary shaker for 48 hours (+/- 4 hours).

Date Prepared: 2/9/22 at 3:45 PM to 2/11/22 at 11:50 AM.

Rev. 1 (2/14/22)
Total Page Count: 40 Page 2 of 40
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Report prepared for: Ron Helm
Cornerstone Earth Group
Date Received: 01/25/22
Date Reported: 02/03/22
Sample Result Summary
SS-4B (0-1) 2201193-001
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 7.34 %
Dry Weight Factor ASTM D2216-90 111 1.07 %
Lead SW6010B 1 0.13 3.2 3.69 mg/Kg
SS-4B (2-3) 2201193-002
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 13.6 %
Dry Weight Factor ASTM D2216-90 111 1.14 %
Lead SW6010B 1 0.14 3.4 7.70 mg/Kg
SS-4B (4-5) 2201193-003
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 7.40 %
Dry Weight Factor ASTM D2216-90 111 1.07 %
Lead SW6010B 1 0.13 3.2 5.67 mg/Kg
SS-4D (0-1) 2201193-004
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 11.6 %
Dry Weight Factor ASTM D2216-90 111 1.12 %
Lead SW6010B 1 0.13 3.4 48.3 mg/Kg
SS-4D (2-3) 2201193-005
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 18.9 %
Dry Weight Factor ASTM D2216-90 111 1.19 %
Lead SW6010B 1 0.14 3.6 10.7 mg/Kg
SS-4D (4-5) 2201193-006
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 12.3 %
Dry Weight Factor ASTM D2216-90 111 1.12 %
Lead SW6010B 1 0.13 3.4 18.6 mg/Kg
Total Page Count: 40 Page 3 of 40
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Report prepared for: Ron Helm
Cornerstone Earth Group
Date Received: 01/25/22
Date Reported: 02/03/22
Sample Result Summary
SS-4A (0-1) 2201193-007
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 10.9 %
Dry Weight Factor ASTM D2216-90 111 1.11 %
Lead SW6010B 1 0.13 3.3 13.4 mg/Kg
SS-4A (2-3) 2201193-008
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 16.2 %
Dry Weight Factor ASTM D2216-90 111 1.16 %
Lead SW6010B 1 0.14 3.5 7.31 mg/Kg
SS-4A (4-5) 2201193-009
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 14.2 %
Dry Weight Factor ASTM D2216-90 111 1.14 %
Lead SW6010B 1 0.14 3.4 6.78 mg/Kg
SS-4C (0-1) 2201193-010
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 8.60 %
Dry Weight Factor ASTM D2216-90 111 1.09 %
Lead SW6010B 1 0.13 3.3 25.1 mg/Kg
SS-4C (2-3) 2201193-011
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 15.4 %
Dry Weight Factor ASTM D2216-90 111 1.15 %
Lead SW6010B 1 0.14 3.5 7.13 mg/Kg
SS-4C (4-5) 2201193-012
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 12.5 %
Dry Weight Factor ASTM D2216-90 111 1.12 %
Lead SW6010B 1 0.13 3.4 7.00 mg/Kg
Total Page Count: 40 Page 4 of 40
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Report prepared for: Ron Helm
Cornerstone Earth Group
Date Received: 01/25/22
Date Reported: 02/03/22
Sample Result Summary
SS-5B (0-1) 2201193-013
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 11.0 %
Dry Weight Factor ASTM D2216-90 111 1.11 %
Lead SW6010B 1 0.13 3.3 10.4 mg/Kg
SS-5B (2-3) 2201193-014
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 13.2 %
Dry Weight Factor ASTM D2216-90 111 1.13 %
Lead SW6010B 1 0.14 3.4 7.63 mg/Kg
SS-5B (4-5) 2201193-015
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 13.0 %
Dry Weight Factor ASTM D2216-90 111 1.13 %
Lead SW6010B 1 0.14 3.4 8.36 mg/Kg
SS-5D (0-1) 2201193-016
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 13.0 %
Dry Weight Factor ASTM D2216-90 111 1.13 %
Lead SW6010B 1 0.14 3.4 70.1 mg/Kg
SS-5D (2-3) 2201193-017
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 15.7 %
Dry Weight Factor ASTM D2216-90 111 1.16 %
Lead SW6010B 1 0.14 3.5 7.66 mg/Kg
SS-5D (4-5) 2201193-018
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 14.8 %
Dry Weight Factor ASTM D2216-90 111 1.15 %
Lead SW6010B 1 0.14 3.5 9.60 mg/Kg
Total Page Count: 40 Page 5 of 40
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Report prepared for: Ron Helm
Cornerstone Earth Group
Date Received: 01/25/22
Date Reported: 02/03/22
Sample Result Summary
SS-5A (0-1) 2201193-019
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 6.96 %
Dry Weight Factor ASTM D2216-90 111 1.07 %
Lead SW6010B 1 0.13 3.2 28.9 mg/Kg
SS-5A (2-3) 2201193-020
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 22.9 %
Dry Weight Factor ASTM D2216-90 111 1.23 %
Lead SW6010B 1 0.15 3.7 8.92 mg/Kg
SS-5A (4-5) 2201193-021
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 12.9 %
Dry Weight Factor ASTM D2216-90 111 1.13 %
Lead SW6010B 1 0.14 3.4 9.44 mg/Kg
SS-5C (0-1) 2201193-022
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 12.1 %
Dry Weight Factor ASTM D2216-90 111 1.12 %
Lead SW6010B 1 0.13 3.4 9.52 mg/Kg
SS-5C (2-3) 2201193-023
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 17.8 %
Dry Weight Factor ASTM D2216-90 111 1.18 %
Lead SW6010B 1 0.14 3.5 7.85 mg/Kg
SS-5C (4-5) 2201193-024
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 13.6 %
Dry Weight Factor ASTM D2216-90 111 1.14 %
Lead SW6010B 1 0.14 3.4 8.89 mg/Kg
Total Page Count: 40 Page 6 of 40
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SAMPLE RESULTS
Report prepared for:

Date Reported: 02/03/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 11:40
1340-1-1
Mitty Way and Lawrence Expressway
SS-4B (0-1)
Sample Matrix: Soil
Lab Sample ID: 2201193-001A
SDG:

Prep Batch ID: 1138821
Prep Batch Date/Time: 2/2/22 11:05:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463283 0.13 3.2 3.69 02/02/22 19:25 ERR Prep Batch ID: 1138791
Prep Batch Date/Time: 1/28/22 7:15:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463186 0.050 0.050 7.34 02/01/22 D2216-90
13:00 PHUY
Dry Weight Factor ASTM 1 - 463186 11 1.07 02/01/22
D2216-90
13:00 PHUY
Total Page Count: 40 Page 7 of 40
DRAFT

I I I I I I

I I I I I I
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SAMPLE RESULTS
Report prepared for:

Date Reported: 02/03/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 11:42
1340-1-1
Mitty Way and Lawrence Expressway
SS-4B (2-3)
Sample Matrix: Soil
Lab Sample ID: 2201193-002A
SDG:

Prep Batch ID: 1138821
Prep Batch Date/Time: 2/2/22 11:05:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463283 0.14 3.4 7.70 02/02/22 19:33 ERR Prep Batch ID: 1138791
Prep Batch Date/Time: 1/28/22 7:15:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463186 0.050 0.050 13.6 02/01/22 D2216-90
13:00 PHUY
Dry Weight Factor ASTM 1 - 463186 11 1.14 02/01/22
D2216-90
13:00 PHUY
Total Page Count: 40 Page 8 of 40
DRAFT

I I I I I I

I I I I I I
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SAMPLE RESULTS
Report prepared for:

Date Reported: 02/03/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 11:44
1340-1-1
Mitty Way and Lawrence Expressway
SS-4B (4-5)
Sample Matrix: Soil
Lab Sample ID: 2201193-003A
SDG:

Prep Batch ID: 1138821
Prep Batch Date/Time: 2/2/22 11:05:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463283 0.13 3.2 5.67 02/02/22 19:35 ERR Prep Batch ID: 1138791
Prep Batch Date/Time: 1/28/22 7:15:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463186 0.050 0.050 7.40 02/01/22 D2216-90
13:00 PHUY
Dry Weight Factor ASTM 1 - 463186 11 1.07 02/01/22
D2216-90
13:00 PHUY
Total Page Count: 40 Page 9 of 40
DRAFT

I I I I I I

I I I I I I
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SAMPLE RESULTS
Report prepared for:

Date Reported: 02/03/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 11:20
1340-1-1
Mitty Way and Lawrence Expressway
SS-4D (0-1)
Sample Matrix: Soil
Lab Sample ID: 2201193-004A
SDG:

Prep Batch ID: 1138821
Prep Batch Date/Time: 2/2/22 11:05:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463283 0.13 3.4 48.3 02/02/22 19:36 ERR Prep Batch ID: 1138791
Prep Batch Date/Time: 1/28/22 7:15:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463186 0.050 0.050 11.6 02/01/22 D2216-90
13:00 PHUY
Dry Weight Factor ASTM 1 - 463186 11 1.12 02/01/22
D2216-90
13:00 PHUY
Total Page Count: 40 Page 10 of 40
DRAFT

I I I I I I

I I I I I I
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SAMPLE RESULTS
Report prepared for:

Date Reported: 02/03/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 11:22
1340-1-1
Mitty Way and Lawrence Expressway
SS-4D (2-3)
Sample Matrix: Soil
Lab Sample ID: 2201193-005A
SDG:

Prep Batch ID: 1138821
Prep Batch Date/Time: 2/2/22 11:05:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463283 0.14 3.6 10.7 02/02/22 19:38 ERR Prep Batch ID: 1138791
Prep Batch Date/Time: 1/28/22 7:15:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463186 0.050 0.050 18.9 02/01/22 D2216-90
13:00 PHUY
Dry Weight Factor ASTM 1 - 463186 11 1.19 02/01/22
D2216-90
13:00 PHUY
Total Page Count: 40 Page 11 of 40
DRAFT

I I I I I I

I I I I I I
483 S i nclair..- Fronta ge Rd-,. M i lpit ta.s ., CA 9 5 0 35, I ,raJ: 408. 263 . 5258 I '1'.ax: 408. 263 . 829·3 I vvvvvv.to rent lab-co m 1076
CC 07-02-2024
1076 of 1296

SAMPLE RESULTS
Report prepared for:

Date Reported: 02/03/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 11:24
1340-1-1
Mitty Way and Lawrence Expressway
SS-4D (4-5)
Sample Matrix: Soil
Lab Sample ID: 2201193-006A
SDG:

Prep Batch ID: 1138821
Prep Batch Date/Time: 2/2/22 11:05:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463283 0.13 3.4 18.6 02/02/22 19:40 ERR Prep Batch ID: 1138791
Prep Batch Date/Time: 1/28/22 7:15:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463186 0.050 0.050 12.3 02/01/22 D2216-90
13:00 PHUY
Dry Weight Factor ASTM 1 - 463186 11 1.12 02/01/22
D2216-90
13:00 PHUY
Total Page Count: 40 Page 12 of 40
DRAFT

I I I I I I

I I I I I I
483 S i nclair..- Fronta ge Rd-,. M i lpit ta.s ., CA 9 5 0 35, I ,raJ: 408. 263 . 5258 I '1'.ax: 408. 263 . 829·3 I vvvvvv.to rent lab-co m 1077
CC 07-02-2024
1077 of 1296

SAMPLE RESULTS
Report prepared for:

Date Reported: 02/03/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 11:40
1340-1-1
Mitty Way and Lawrence Expressway
SS-4A (0-1)
Sample Matrix: Soil
Lab Sample ID: 2201193-007A
SDG:

Prep Batch ID: 1138821
Prep Batch Date/Time: 2/2/22 11:05:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463283 0.13 3.3 13.4 02/02/22 19:42 ERR Prep Batch ID: 1138791
Prep Batch Date/Time: 1/28/22 7:15:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463186 0.050 0.050 10.9 02/01/22 D2216-90
13:00 PHUY
Dry Weight Factor ASTM 1 - 463186 11 1.11 02/01/22
D2216-90
13:00 PHUY
Total Page Count: 40 Page 13 of 40
DRAFT

I I I I I I

I I I I I I
483 S i nclair..- Fronta ge Rd-,. M i lpit ta.s ., CA 9 5 0 35, I ,raJ: 408. 263 . 5258 I '1'.ax: 408. 263 . 829·3 I vvvvvv.to rent lab-co m 1078
CC 07-02-2024
1078 of 1296

SAMPLE RESULTS
Report prepared for:

Date Reported: 02/03/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 11:42
1340-1-1
Mitty Way and Lawrence Expressway
SS-4A (2-3)
Sample Matrix: Soil
Lab Sample ID: 2201193-008A
SDG:

Prep Batch ID: 1138821
Prep Batch Date/Time: 2/2/22 11:05:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463283 0.14 3.5 7.31 02/02/22 19:43 ERR Prep Batch ID: 1138791
Prep Batch Date/Time: 1/28/22 7:15:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463186 0.050 0.050 16.2 02/01/22 D2216-90
13:00 PHUY
Dry Weight Factor ASTM 1 - 463186 11 1.16 02/01/22
D2216-90
13:00 PHUY
Total Page Count: 40 Page 14 of 40
DRAFT

I I I I I I

I I I I I I
483 S i nclair..- Fronta ge Rd-,. M i lpit ta.s ., CA 9 5 0 35, I ,raJ: 408. 263 . 5258 I '1'.ax: 408. 263 . 829·3 I vvvvvv.to rent lab-co m 1079
CC 07-02-2024
1079 of 1296

SAMPLE RESULTS
Report prepared for:

Date Reported: 02/03/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 11:44
1340-1-1
Mitty Way and Lawrence Expressway
SS-4A (4-5)
Sample Matrix: Soil
Lab Sample ID: 2201193-009A
SDG:

Prep Batch ID: 1138821
Prep Batch Date/Time: 2/2/22 11:05:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463283 0.14 3.4 6.78 02/02/22 19:45 ERR Prep Batch ID: 1138791
Prep Batch Date/Time: 1/28/22 7:15:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463186 0.050 0.050 14.2 02/01/22 D2216-90
13:00 PHUY
Dry Weight Factor ASTM 1 - 463186 11 1.14 02/01/22
D2216-90
13:00 PHUY
Total Page Count: 40 Page 15 of 40
DRAFT

I I I I I I

I I I I I I
483 S i nclair..- Fronta ge Rd-,. M i lpit ta.s ., CA 9 5 0 35, I ,raJ: 408. 263 . 5258 I '1'.ax: 408. 263 . 829·3 I vvvvvv.to rent lab-co m 1080
CC 07-02-2024
1080 of 1296

SAMPLE RESULTS
Report prepared for:

Date Reported: 02/03/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 11:30
1340-1-1
Mitty Way and Lawrence Expressway
SS-4C (0-1)
Sample Matrix: Soil
Lab Sample ID: 2201193-010A
SDG:

Prep Batch ID: 1138821
Prep Batch Date/Time: 2/2/22 11:05:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463283 0.13 3.3 25.1 02/02/22 19:46 ERR Prep Batch ID: 1138791
Prep Batch Date/Time: 1/28/22 7:15:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463186 0.050 0.050 8.60 02/01/22 D2216-90
13:00 PHUY
Dry Weight Factor ASTM 1 - 463186 11 1.09 02/01/22
D2216-90
13:00 PHUY
Total Page Count: 40 Page 16 of 40
DRAFT

I I I I I I

I I I I I I
483 S i nclair..- Fronta ge Rd-,. M i lpit ta.s ., CA 9 5 0 35, I ,raJ: 408. 263 . 5258 I '1'.ax: 408. 263 . 829·3 I vvvvvv.to rent lab-co m 1081
CC 07-02-2024
1081 of 1296

SAMPLE RESULTS
Report prepared for:

Date Reported: 02/03/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 11:32
1340-1-1
Mitty Way and Lawrence Expressway
SS-4C (2-3)
Sample Matrix: Soil
Lab Sample ID: 2201193-011A
SDG:

Prep Batch ID: 1138821
Prep Batch Date/Time: 2/2/22 11:05:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463283 0.14 3.5 7.13 02/02/22 19:53 ERR Prep Batch ID: 1138791
Prep Batch Date/Time: 1/28/22 7:15:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463186 0.050 0.050 15.4 02/01/22 D2216-90
13:00 PHUY
Dry Weight Factor ASTM 1 - 463186 11 1.15 02/01/22
D2216-90
13:00 PHUY
Total Page Count: 40 Page 17 of 40
DRAFT

I I I I I I

I I I I I I
483 S i nclair..- Fronta ge Rd-,. M i lpit ta.s ., CA 9 5 0 35, I ,raJ: 408. 263 . 5258 I '1'.ax: 408. 263 . 829·3 I vvvvvv.to rent lab-co m 1082
CC 07-02-2024
1082 of 1296

SAMPLE RESULTS
Report prepared for:

Date Reported: 02/03/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 11:34
1340-1-1
Mitty Way and Lawrence Expressway
SS-4C (4-5)
Sample Matrix: Soil
Lab Sample ID: 2201193-012A
SDG:

Prep Batch ID: 1138821
Prep Batch Date/Time: 2/2/22 11:05:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463283 0.13 3.4 7.00 02/02/22 19:55 ERR Prep Batch ID: 1138791
Prep Batch Date/Time: 1/28/22 7:15:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463186 0.050 0.050 12.5 02/01/22 D2216-90
13:00 PHUY
Dry Weight Factor ASTM 1 - 463186 11 1.12 02/01/22
D2216-90
13:00 PHUY
Total Page Count: 40 Page 18 of 40
DRAFT

I I I I I I

I I I I I I
483 S i nclair..- Fronta ge Rd-,. M i lpit ta.s ., CA 9 5 0 35, I ,raJ: 408. 263 . 5258 I '1'.ax: 408. 263 . 829·3 I vvvvvv.to rent lab-co m 1083
CC 07-02-2024
1083 of 1296

SAMPLE RESULTS
Report prepared for:

Date Reported: 02/03/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 12:02
1340-1-1
Mitty Way and Lawrence Expressway
SS-5B (0-1)
Sample Matrix: Soil
Lab Sample ID: 2201193-013A
SDG:

Prep Batch ID: 1138821
Prep Batch Date/Time: 2/2/22 11:05:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463283 0.13 3.3 10.4 02/02/22 19:56 ERR Prep Batch ID: 1138791
Prep Batch Date/Time: 1/28/22 7:15:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463186 0.050 0.050 11.0 02/01/22 D2216-90
13:00 PHUY
Dry Weight Factor ASTM 1 - 463186 11 1.11 02/01/22
D2216-90
13:00 PHUY
Total Page Count: 40 Page 19 of 40
DRAFT

I I I I I I

I I I I I I
483 S i nclair..- Fronta ge Rd-,. M i lpit ta.s ., CA 9 5 0 35, I ,raJ: 408. 263 . 5258 I '1'.ax: 408. 263 . 829·3 I vvvvvv.to rent lab-co m 1084
CC 07-02-2024
1084 of 1296

SAMPLE RESULTS
Report prepared for:

Date Reported: 02/03/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 12:04
1340-1-1
Mitty Way and Lawrence Expressway
SS-5B (2-3)
Sample Matrix: Soil
Lab Sample ID: 2201193-014A
SDG:

Prep Batch ID: 1138821
Prep Batch Date/Time: 2/2/22 11:05:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463283 0.14 3.4 7.63 02/02/22 19:58 ERR Prep Batch ID: 1138791
Prep Batch Date/Time: 1/28/22 7:15:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463186 0.050 0.050 13.2 02/01/22 D2216-90
13:00 PHUY
Dry Weight Factor ASTM 1 - 463186 11 1.13 02/01/22
D2216-90
13:00 PHUY
Total Page Count: 40 Page 20 of 40
DRAFT

I I I I I I

I I I I I I
483 S i nclair..- Fronta ge Rd-,. M i lpit ta.s ., CA 9 5 0 35, I ,raJ: 408. 263 . 5258 I '1'.ax: 408. 263 . 829·3 I vvvvvv.to rent lab-co m 1085
CC 07-02-2024
1085 of 1296

SAMPLE RESULTS
Report prepared for:

Date Reported: 02/03/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 12:06
1340-1-1
Mitty Way and Lawrence Expressway
SS-5B (4-5)
Sample Matrix: Soil
Lab Sample ID: 2201193-015A
SDG:

Prep Batch ID: 1138821
Prep Batch Date/Time: 2/2/22 11:05:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463283 0.14 3.4 8.36 02/02/22 20:00 ERR Prep Batch ID: 1138791
Prep Batch Date/Time: 1/28/22 7:15:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463186 0.050 0.050 13.0 02/01/22 D2216-90
13:00 PHUY
Dry Weight Factor ASTM 1 - 463186 11 1.13 02/01/22
D2216-90
13:00 PHUY
Total Page Count: 40 Page 21 of 40
DRAFT

I I I I I I

I I I I I I
483 S i nclair..- Fronta ge Rd-,. M i lpit ta.s ., CA 9 5 0 35, I ,raJ: 408. 263 . 5258 I '1'.ax: 408. 263 . 829·3 I vvvvvv.to rent lab-co m 1086
CC 07-02-2024
1086 of 1296

SAMPLE RESULTS
Report prepared for:

Date Reported: 02/03/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 12:10
1340-1-1
Mitty Way and Lawrence Expressway
SS-5D (0-1)
Sample Matrix: Soil
Lab Sample ID: 2201193-016A
SDG:

Prep Batch ID: 1138821
Prep Batch Date/Time: 2/2/22 11:05:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463283 0.14 3.4 70.1 02/02/22 20:01 ERR Prep Batch ID: 1139162
Prep Batch Date/Time: 2/12/22 11:00:00AM
Prep Analyst: ERAGUDO
Prep Method: WET/3010B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead (STLC) SW6010B 1 mg/L 463534 0.050 0.20 ND 02/12/22 15:05 ERR Prep Batch ID: 1138791
Prep Batch Date/Time: 1/28/22 7:15:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463186 0.050 0.050 13.0 02/01/22 D2216-90
13:00 PHUY
Dry Weight Factor ASTM 1 - 463186 11 1.13 02/01/22
D2216-90
13:00 PHUY
Total Page Count: 40 Page 22 of 40
DRAFT

I I I I I I

I I I I I I

I I I I I I
483 S i nclair..- Fronta ge Rd-,. M i lpit ta.s ., CA 9 5 0 35, I ,raJ: 408. 263 . 5258 I '1'.ax: 408. 263 . 829·3 I vvvvvv.to rent lab-co m 1087
CC 07-02-2024
1087 of 1296

SAMPLE RESULTS
Report prepared for:

Date Reported: 02/03/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 12:12
1340-1-1
Mitty Way and Lawrence Expressway
SS-5D (2-3)
Sample Matrix: Soil
Lab Sample ID: 2201193-017A
SDG:

Prep Batch ID: 1138821
Prep Batch Date/Time: 2/2/22 11:05:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463283 0.14 3.5 7.66 02/02/22 20:03 ERR Prep Batch ID: 1138792
Prep Batch Date/Time: 1/28/22 7:15:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463192 0.050 0.050 15.7 02/01/22 D2216-90
13:00 PHUY
Dry Weight Factor ASTM 1 - 463192 11 1.16 02/01/22
D2216-90
13:00 PHUY
Total Page Count: 40 Page 23 of 40
DRAFT

I I I I I I

I I I I I I
483 S i nclair..- Fronta ge Rd-,. M i lpit ta.s ., CA 9 5 0 35, I ,raJ: 408. 263 . 5258 I '1'.ax: 408. 263 . 829·3 I vvvvvv.to rent lab-co m 1088
CC 07-02-2024
1088 of 1296

SAMPLE RESULTS
Report prepared for:

Date Reported: 02/03/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 12:14
1340-1-1
Mitty Way and Lawrence Expressway
SS-5D (4-5)
Sample Matrix: Soil
Lab Sample ID: 2201193-018A
SDG:

Prep Batch ID: 1138827
Prep Batch Date/Time: 2/2/22 11:45:00AM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463284 0.14 3.5 9.60 02/02/22 20:17 ERR Prep Batch ID: 1138792
Prep Batch Date/Time: 1/28/22 7:15:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463192 0.050 0.050 14.8 02/01/22 D2216-90
13:00 PHUY
Dry Weight Factor ASTM 1 - 463192 11 1.15 02/01/22
D2216-90
13:00 PHUY
Total Page Count: 40 Page 24 of 40
DRAFT

I I I I I I

I I I I I I
483 S i nclair..- Fronta ge Rd-,. M i lpit ta.s ., CA 9 5 0 35, I ,raJ: 408. 263 . 5258 I '1'.ax: 408. 263 . 829·3 I vvvvvv.to rent lab-co m 1089
CC 07-02-2024
1089 of 1296

SAMPLE RESULTS
Report prepared for:

Date Reported: 02/03/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 12:20
1340-1-1
Mitty Way and Lawrence Expressway
SS-5A (0-1)
Sample Matrix: Soil
Lab Sample ID: 2201193-019A
SDG:

Prep Batch ID: 1138827
Prep Batch Date/Time: 2/2/22 11:45:00AM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463284 0.13 3.2 28.9 02/02/22 20:22 ERR Prep Batch ID: 1138792
Prep Batch Date/Time: 1/28/22 7:15:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463192 0.050 0.050 6.96 02/01/22 D2216-90
13:00 PHUY
Dry Weight Factor ASTM 1 - 463192 11 1.07 02/01/22
D2216-90
13:00 PHUY
Total Page Count: 40 Page 25 of 40
DRAFT

I I I I I I

I I I I I I
483 S i nclair..- Fronta ge Rd-,. M i lpit ta.s ., CA 9 5 0 35, I ,raJ: 408. 263 . 5258 I '1'.ax: 408. 263 . 829·3 I vvvvvv.to rent lab-co m 1090
CC 07-02-2024
1090 of 1296

SAMPLE RESULTS
Report prepared for:

Date Reported: 02/03/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 12:22
1340-1-1
Mitty Way and Lawrence Expressway
SS-5A (2-3)
Sample Matrix: Soil
Lab Sample ID: 2201193-020A
SDG:

Prep Batch ID: 1138827
Prep Batch Date/Time: 2/2/22 11:45:00AM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463284 0.15 3.7 8.92 02/02/22 20:23 ERR Prep Batch ID: 1138792
Prep Batch Date/Time: 1/28/22 7:15:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463192 0.050 0.050 22.9 02/01/22 D2216-90
13:00 PHUY
Dry Weight Factor ASTM 1 - 463192 11 1.23 02/01/22
D2216-90
13:00 PHUY
Total Page Count: 40 Page 26 of 40
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SAMPLE RESULTS
Report prepared for:

Date Reported: 02/03/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 12:24
1340-1-1
Mitty Way and Lawrence Expressway
SS-5A (4-5)
Sample Matrix: Soil
Lab Sample ID: 2201193-021A
SDG:

Prep Batch ID: 1138827
Prep Batch Date/Time: 2/2/22 11:45:00AM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463284 0.14 3.4 9.44 02/02/22 20:25 ERR Prep Batch ID: 1138792
Prep Batch Date/Time: 1/28/22 7:15:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463192 0.050 0.050 12.9 02/01/22 D2216-90
13:00 PHUY
Dry Weight Factor ASTM 1 - 463192 11 1.13 02/01/22
D2216-90
13:00 PHUY
Total Page Count: 40 Page 27 of 40
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I I I I I I
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SAMPLE RESULTS
Report prepared for:

Date Reported: 02/03/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 12:32
1340-1-1
Mitty Way and Lawrence Expressway
SS-5C (0-1)
Sample Matrix: Soil
Lab Sample ID: 2201193-022A
SDG:

Prep Batch ID: 1138827
Prep Batch Date/Time: 2/2/22 11:45:00AM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463284 0.13 3.4 9.52 02/02/22 20:30 ERR Prep Batch ID: 1138792
Prep Batch Date/Time: 1/28/22 7:15:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463192 0.050 0.050 12.1 02/01/22 D2216-90
13:00 PHUY
Dry Weight Factor ASTM 1 - 463192 11 1.12 02/01/22
D2216-90
13:00 PHUY
Total Page Count: 40 Page 28 of 40
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SAMPLE RESULTS
Report prepared for:

Date Reported: 02/03/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 12:34
1340-1-1
Mitty Way and Lawrence Expressway
SS-5C (2-3)
Sample Matrix: Soil
Lab Sample ID: 2201193-023A
SDG:

Prep Batch ID: 1138827
Prep Batch Date/Time: 2/2/22 11:45:00AM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463284 0.14 3.5 7.85 02/02/22 20:32 ERR Prep Batch ID: 1138792
Prep Batch Date/Time: 1/28/22 7:15:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463192 0.050 0.050 17.8 02/01/22 D2216-90
13:00 PHUY
Dry Weight Factor ASTM 1 - 463192 11 1.18 02/01/22
D2216-90
13:00 PHUY
Total Page Count: 40 Page 29 of 40
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SAMPLE RESULTS
Report prepared for:

Date Reported: 02/03/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 12:36
1340-1-1
Mitty Way and Lawrence Expressway
SS-5C (4-5)
Sample Matrix: Soil
Lab Sample ID: 2201193-024A
SDG:

Prep Batch ID: 1138827
Prep Batch Date/Time: 2/2/22 11:45:00AM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463284 0.14 3.4 8.89 02/02/22 20:33 ERR Prep Batch ID: 1138792
Prep Batch Date/Time: 1/28/22 7:15:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463192 0.050 0.050 13.6 02/01/22 D2216-90
13:00 PHUY
Dry Weight Factor ASTM 1 - 463192 11 1.14 02/01/22
D2216-90
13:00 PHUY
Total Page Count: 40 Page 30 of 40
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MB Summary Report
Work Order:

Matrix:

Units:

Prep Method:

Analytical ASTM D2216-90
Method:

Prep Date:

Analyzed Date:
01/28/22 Prep Batch:

Analytical
Batch:
mg/L
% Water-P 1138791
Soil 463186
2201193
2/1/2022
Parameters
Method
Blank
Conc.

MDL PQL
Lab
Qualifier
Moisture, Percent 0.050 0.050 ND
Work Order:

Matrix:

Units:

Prep Method:

Analytical ASTM D2216-90
Method:

Prep Date:

Analyzed Date:
01/28/22 Prep Batch:

Analytical
Batch:
mg/L
% Water-P 1138792
Soil 463192
2201193
2/1/2022
Parameters
Method
Blank
Conc.

MDL PQL
Lab
Qualifier
Moisture, Percent 0.050 0.050 ND
Work Order:

Matrix:

Units:

Prep Method:

Analytical SW6010B
Method:

Prep Date:

Analyzed Date:
02/02/22 Prep Batch:

Analytical
Batch:
mg/Kg
3050B 1138821
Soil 463283
2201193
2/2/2022
Parameters
Method
Blank
Conc.

MDL PQL
Lab
Qualifier
Lead 0.10 3.00 ND
Work Order:

Matrix:

Units:

Prep Method:

Analytical SW6010B
Method:

Prep Date:

Analyzed Date:
02/02/22 Prep Batch:

Analytical
Batch:
mg/Kg
3050B 1138827
Soil 463284
2201193
2/2/2022
Parameters
Method
Blank
Conc.

MDL PQL
Lab
Qualifier
Lead 0.10 3.00 ND
Work Order:

Matrix:

Units:

Prep Method:

Analytical SW6010B
Method:

Prep Date:

Analyzed Date:
02/12/22 Prep Batch:

Analytical
Batch:
mg/L
WET/3010B 1139162
Soil 463534
2201193
2/12/2022
Parameters
Method
Blank
Conc.

MDL PQL
Lab
Qualifier
Arsenic (STLC) 0.40 0.40 ND
Chromium (STLC) 0.010 0.20 0.013
Lead (STLC) 0.050 0.20 ND
Total Page Count: 40 Page 31 of 40
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LCS/LCSD Summary Report
Raw values are used in quality control assessment.

Work Order:

Matrix:

Units:

Prep Method:

Analytical
Method:

Prep Date:

Analyzed Date:
02/02/22 Prep Batch:

Analytical
Batch:
3050B 1138821
SW6010B 2/2/2022 463283
mg/Kg
2201193
Soil
Parameters MDL PQL
Method
Blank
Conc.

Spike
Conc.

LCS %
Recovery
LCSD %
Recovery

LCS/LCSD
% RPD
%
Recovery
Limits
% RPD
Limits
Lab
Qualifier
Lead 0.10 3.00 ND 50 96.1 97.6 1.44 80 - 120 30
Work Order:

Matrix:

Units:

Prep Method:

Analytical
Method:

Prep Date:

Analyzed Date:
02/02/22 Prep Batch:

Analytical
Batch:
3050B 1138827
SW6010B 2/2/2022 463284
mg/Kg
2201193
Soil
Parameters MDL PQL
Method
Blank
Conc.

Spike
Conc.

LCS %
Recovery
LCSD %
Recovery

LCS/LCSD
% RPD
%
Recovery
Limits
% RPD
Limits
Lab
Qualifier
Lead 0.10 3.00 ND 50 96.7 94.6 2.30 80 - 120 30
Work Order:

Matrix:

Units:

Prep Method:

Analytical
Method:

Prep Date:

Analyzed Date:
02/12/22 Prep Batch:

Analytical
Batch:

WET/3010B 1139162
SW6010B 2/12/2022 463534
mg/L
2201193
Soil
Parameters MDL PQL
Method
Blank
Conc.

Spike
Conc.

LCS %
Recovery
LCSD %
Recovery

LCS/LCSD
% RPD
%
Recovery
Limits
% RPD
Limits
Lab
Qualifier
Arsenic (STLC) 0.20 0.40 ND 10 107 105 1.89 80 - 120 20 Chromium (STLC) 106 104 0.010 1.90 20 0.20 10 0.013 80 - 120 Lead (STLC) 105 103 0.050 1.92 20 0.20 10 ND 80 - 120
Total Page Count: 40 Page 32 of 40
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MS/MSD Summary Report
Raw values are used in quality control assessment.

Work Order: 2201193
Analyzed Date:

Prep Date:

Matrix:

Prep Method: 02/02/22
Spiked Sample: 2201193-001A
Analytical
Method:

Prep Batch:

Units:

Analytical
Batch:
3050B 1138821
Soil 463283
mg/Kg
SW6010B 2/2/2022
Parameters MDL PQL Sample
Conc.

Spike
Conc.

MS %
Recovery
MSD %
Recovery
MS/MSD
% RPD
%
Recovery
Limits
% RPD
Limits
Lab
Qualifier
Lead 0.10 5.00 ND 50 95.6 87.9 7.66 67.9 - 118 30
Work Order: 2201193
Analyzed Date:

Prep Date:

Matrix:

Prep Method: 02/02/22
Spiked Sample: 2201193-018A
Analytical
Method:

Prep Batch:

Units:

Analytical
Batch:
3050B 1138827
Soil 463284
mg/Kg
SW6010B 2/2/2022
Parameters MDL PQL Sample
Conc.

Spike
Conc.

MS %
Recovery
MSD %
Recovery
MS/MSD
% RPD
%
Recovery
Limits
% RPD
Limits
Lab
Qualifier
Lead 0.10 5.00 9.60 50 80.8 81.8 0.995 67.9 - 118 30
Total Page Count: 40 Page 33 of 40
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Duplicate QC Summary Report
Work Order:

Matrix:

Units:

Prep Method:

Analytical
Method:

Prep Date:

Analyzed
Date:
1/28/2022 Prep Batch:

Analytical
Batch:
02/01/22
2201193
Lab Sample ID: 2201193-006A-DUP-1138791
% Water-P 1138791
ASTM D2216-90 463186
Parameters MDL PQL Sample
Result
Duplicate
Result
% RPD
Moisture, Percent 0.050 0.0500 12.3 12.2 0.82
Work Order:

Matrix:

Units:

Prep Method:

Analytical
Method:

Prep Date:

Analyzed
Date:
1/28/2022 Prep Batch:

Analytical
Batch:
02/01/22
2201193
Lab Sample ID: 2201193-016A-DUP-1138791
% Water-P 1138791
ASTM D2216-90 463186
Parameters MDL PQL Sample
Result
Duplicate
Result
% RPD
Moisture, Percent 0.050 0.0500 13.0 12.8 1.55
Total Page Count: 40 Page 34 of 40
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Laboratory Qualifiers and Definitions
Method Detection Limit (MDL) - the minimum concentration of a substance that can be measured and reported with a 99% confidence that the analyte concentration is greater than zero
Matrix Spike (MS/MSD) - Client sample spiked with identical concentrations of target analyte (s). The spiking occurs prior to the sample preparation and analysis. They are used to document the precision and bias of a method in a given sample matrix.

Matrix - the component or substrate that contains the analyte of interest (e.g., - groundwater, sediment, soil, waste water, etc) Laboratory Control Sample (LCS ad LCSD) - A known matrix spiked with compounds representative of the target analyte(s). This is used to document laboratory performance.

Duplicate - a field sample and/or laboratory QC sample prepared in duplicate following all of the same processes and procedures used on the original sample (sample duplicate, LCSD, MSD)
Blank (Method/Preparation Blank) -MB/PB - An analyte-free matrix to which all reagents are added in the same volumes/proportions as used in sample processing. The method blank is used to document contamination resulting from the analytical process.

Practical Quantitation Limit/Reporting Limit/Limit of Quantitation (PQL/RL/LOQ) - a laboratory determined value at 2 to 5 times above the MDL that can be reproduced in a manner that results in a 99% confidence level that the result is both accurate and precise. PQLs/RLs/LODs reflect all preparation factors and/or dilution factors that have been applied to the sample during the preparation and/or analytical processes.

Precision (%RPD) - The agreement among a set of replicate/duplicate measurements without regard to known value of the replicates Surrogate (S) or (Surr) - An organic compound which is similar to the target analyte(s) in chemical composition and behavior in the analytical process, but which is not normally found in environmental samples. Surrogates are used in most organic analysis to demonstrate matrix compatibility with the chosen method of analysis
Tentatively Identified Compound (TIC) - A compound not contained within the analytical calibration standards but present in the GCMS library of defined compounds. When the library is searched for an unknown compound, it can frequently give a tentative identification to the compound based on retention time and primary and secondary ion match. TICs are reported as estimates and are candidates for further investigation.

Units: the unit of measure used to express the reported result - mg/L and mg/Kg (equivalent to PPM - parts per million in liquid and solid), ug/L and ug/Kg (equivalent to PPB - parts per billion in liquid and solid), ug/m3, mg/m3, ppbv and ppmv (all units of measure for reporting concentrations in air), % ( equivalent to 10000 ppm or 1,000,000 ppb), ug/Wipe ( concentration found on the surface of a single Wipe usually taken over a 100cm2 surface) B - Indicates when the analyte is found in the associated method or preparation blank D - Surrogate is not recoverable due to the necessary dilution of the sample E - Indicates the reportable value is outside of the calibration range of the instrument but within the linear range of the instrument (unless otherwise noted) Values reported with an E qualifier should be considered as estimated.

H- Indicates that the recommended holding time for the analyte or compound has been exceeded J- Indicates a value between the method MDL and PQL and that the reported concentration should be considered as estimated rather the quantitative NA - Not Analyzed
N/A - Not Applicable
ND - Not Detected at a concentration greater than the PQL/RL or, if reported to the MDL, at greater than the MDL.

NR - Not recoverable - a matrix spike concentration is not recoverable due to a concentration within the original sample that is greater than four times the spike concentration added
R- The % RPD between a duplicate set of samples is outside of the absolute values established by laboratory control charts S- Spike recovery is outside of established method and/or laboratory control limits. Further explanation of the use of this qualifier should be included within a case narrative
X -Used to indicate that a value based on pattern identification is within the pattern range but not typical of the pattern found in standards.

Further explanation may or may not be provided within the sample footnote and/or the case narrative.

DEFINITIONS:

Accuracy/Bias (% Recovery) - The closeness of agreement between an observed value and an accepted reference value.

LABORATORY QUALIFIERS:

Total Page Count: 40 Page 35 of 40
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Sample Receipt Checklist
Client Name: Cornerstone Earth Group
Project Name: Mitty Way and Lawrence Expressway
Work Order No.: 2201193
Date and Time Received: 1/25/2022 2:55:00PM
Received By: HH
Physically Logged By: Lorna Imbat
Carrier Name: Client Drop Off
Checklist Completed By: Lorna Imbat
Comments:

Chain of Custody (COC) Information
Shipping Container/Cooler In Good Condition?
Custody seals intact on shipping container/cooler?
Custody seals intact on sample bottles?
Chain of custody present?
Chain of custody signed when relinquished and received? Chain of custody agrees with sample labels?
Samples in proper container/bottle?
Sufficient sample volume for indicated test?
All samples received within holding time?
Container/Temp Blank temperature in compliance?
Water-VOA vials have zero headspace?
Water-pH acceptable upon receipt?
Temperature:

Yes
Not Present
Not Present
Yes
Yes
Yes
Yes
Yes
Yes
No
No VOA vials submitted
N/A
Samples containers intact? Yes
°C
Sample Receipt Information
Sample Preservation and Hold Time (HT) Information
pH Checked by: N/A pH Adjusted by: N/A

8.0 Total Page Count: 40 Page 36 of 40
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Login Summary Report
Report Due Date:
1/25/2022
TL5119 Cornerstone Earth Group II
Mitty Way and Lawrence Expressway
1340-1-1
2/11/2022
TAT Requested:

Date Received:

Time Received:

QC Level:

Project Name:

Project # :

Comments:

Client ID:
5+ day:5
2:55 pm
Work Order # : 2201193
Requested Subbed
Tests
Test
On Hold
Sample
On Hold
Scheduled
Disposal
Collection Matrix
Date/Time
Client
Sample ID
WO Sample ID
2201193-001A Soil 07/24/22 SS-4B (0-1) 01/25/22 11:40
Met_S_AsPb Dry Wt
PMOIST
Sample Note: 6010-Lead
2201193-002A SS-4B (2-3) 01/25/22 11:42 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201193-003A SS-4B (4-5) 01/25/22 11:44 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201193-004A SS-4D (0-1) 01/25/22 11:20 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201193-005A SS-4D (2-3) 01/25/22 11:22 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201193-006A SS-4D (4-5) 01/25/22 11:24 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201193-007A SS-4A (0-1) 01/25/22 11:40 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201193-008A SS-4A (2-3) 01/25/22 11:42 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201193-009A SS-4A (4-5) 01/25/22 11:44 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201193-010A SS-4C (0-1) 01/25/22 11:30 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201193-011A SS-4C (2-3) 01/25/22 11:32 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201193-012A SS-4C (4-5) 01/25/22 11:34 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
Total Page Count: 40 Page 37 of 40
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Login Summary Report
Report Due Date:
1/25/2022
TL5119 Cornerstone Earth Group II
Mitty Way and Lawrence Expressway
1340-1-1
2/11/2022
TAT Requested:

Date Received:

Time Received:

QC Level:

Project Name:

Project # :

Comments:

Client ID:
5+ day:5
2:55 pm
Work Order # : 2201193
Requested Subbed
Tests
Test
On Hold
Sample
On Hold
Scheduled
Disposal
Collection Matrix
Date/Time
Client
Sample ID
WO Sample ID
2201193-013A Soil 07/24/22 SS-5B (0-1) 01/25/22 12:02
Met_S_AsPb Dry Wt
PMOIST
2201193-014A SS-5B (2-3) 01/25/22 12:04 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201193-015A SS-5B (4-5) 01/25/22 12:06 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201193-016A SS-5D (0-1) 01/25/22 12:10 Soil 07/24/22
Met_S_AsPb Dry Wt
Met_S_CAM17STLC
PMOIST
2201193-017A SS-5D (2-3) 01/25/22 12:12 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201193-018A SS-5D (4-5) 01/25/22 12:14 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201193-019A SS-5A (0-1) 01/25/22 12:20 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201193-020A SS-5A (2-3) 01/25/22 12:22 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201193-021A SS-5A (4-5) 01/25/22 12:24 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201193-022A SS-5C (0-1) 01/25/22 12:32 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201193-023A SS-5C (2-3) 01/25/22 12:34 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201193-024A SS-5C (4-5) 01/25/22 12:36 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
Total Page Count: 40 Page 38 of 40
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Total Page Count: 40 Page 39 of 40
DRAFT
Ii.I CORNERSTONE
EARTH GROUP Chain of Custody Record
Project Mnnngcr: Ron llclm Site Sampler: llill Howe /'BTf'II Date: 1/25/2022 Cornerstone Earth Group, Inc. Tel/Fax: 408-245-4600 Lab Contnct: Kathie Evans Lab: Torrent 1259 Oakmead Pkwy A1rnlysis Turrrnround Time
Sunnyvale, California 94085
(408) 245-4600 Phone TAT if different from Below -- (408) 245-4620 FAX I week g ., Project: Mitty Park □ 3 days t:
.,
Site: Mitty Way and Lawrence Expressway □
., 2 days "' <
Project Number: 1340-1-1 □ I day ,.
~
]
Sample .J
nm pie ample #of " Sample ldenlificalion Date Time Type Matrix Cont I-• 'SS-L-lB (0-1) 1/25/2022 I/L.10 Liner Soil I x " C: 0/ /ts<;-L\ i, (2-)) I 11~'2. X IA, If' SS- L\IS CL\-S) \1YL\ )( - 0( 3,
'5'5 -L\I) (c-\) ii "2.0 X -o )~ l.
<;S. t..\ \) (2-)) wn ~ ('" [ "µ ti
q:; -!.\"\) (t.\-~} lb\.\ X -c ()I A
SS·L/.A (o-1) ilL[O x ..... ()~
'S'S- ({A ('2.·)) llL-l'2. X 1-1 ) 0 '81-
S-S - L\ A ( L-1-S'J !I~~ X ,,. O(j ii
5) • L( (. Co-() I( )0 X - 0 ~~ t
<:;S - t.\ c, ci-:i) w:~z. :?< -c IU~
S<;- 1...\ c, ( l{ - ~) 1/3~ ) ..... , ri~
Preservation Used: I= Ice, 2= IICI; 3= II2SO4; 4=11NO3; S=NaOII; 6= Other Possible 1/nznrtl Idemificatio11 Sample Disposal
COC No: :l
~ " COCs
Laboratory's Job No.

Laboratory's Sample Specific Notes:
□ Non-Hazard □ Flammable D Skin lrrita111 □ Poison 8 □ U11k11ow11 □ Re/urn To Client □ Disposal By Lab □ Archive For Months --- Special Instructions/QC neq11ircmc11is & Commc11Is: Email results to [email protected] ; [email protected] and [email protected] Plcnsc Report on a Dry Weigh! Basis A
l(~ ;;J/ibµe Company:
~?°ffo/iJ-z. Receiver,,~
~ Co,ToWt-wfl/p
0 Cornerstone Eanh Group "r!~---/i,1--/ Cf SI' I~ ·- RcTrnquishcd by: Company: Dateffime: RcceiJcd by: I Company: Date/Time:

Relinquished by: Company: Datefrime: Received by: Company: DaIcfl'ime:
483 S i nclair Front age Rd.~ M i l pi,t as .. CA 95035 I teJ: 4O8-. 263 . 5258 I -Fax: 4O8. 263. B293 I vvvvvv. t on·-en-Ua,b ~corn 1104
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Total Page Count: 40 Page 40 of 40
DRAFT

15.i CORNERSTONE
EARTH GROUP Chain of Custody Record
Project Mnr111~er: llon llelm Sile Snmpler: Hill lloll'e rI:f'if-J\ Date: 1/25/2022 Cornerstone Earth Group, Inc. Tel/Fnx: 408-245-4600 Lnh Contact: K11thic Evans Lnb: Torrent 1259 Oakmead Pkwy Analysis Turnaround Time
Sunnyvale, California 94085
(408) 245-4600 Phone TAT if different from !Jclow -- ( 408) 245-4620 FAX I week 0 0 0
Projecl: Milly Park □ 3 days ~
Sile: Milly Way and Lawrence Expressway □
;;
2 days .. • < Projecl Number: 1340-1-1 □ I day - 0.
.. "' E - ... "'
.. . . Sample Sample Sample 1,r $ ~ Sample ldenlifieation Dale Time Type Matrix Cont. = Q "';- s)-si CO-\) ln5/2022 \ 2<=>2. Liner Soil I X 03 It
S'S -S~ (1·)} p.o~ X -· )(1 Cf
~-c;'t> ('-l·f) \Lob 'f- -Oi ~
'S'S -c:; l) ( 0 - \) l'2.I() y.. -ab, ..

SS-Sb Cl-~) 121<. X - 017, ~
SS-S'D (l{·S~ \21~ X ,-c 81
S'S-SA {O-l) I 1'2.o X ..--o qr:r
SS·SA c2:\') l?.1-2 Y- -0 12:i p
SS-S J.. ( L/ ·)°'} (12~ y. - o. f-1 A
ss-sc (o-1) lZ'31. y.. rt '), f-.~ ,
S'3-'5c (2-l) l134 X H D.2, ~/ I
css~sc (4.-)} 12. )G '/. I--- r>2 f 1
l'rcservn1iorr Used: I= Ice, 2= HCI; 3= II2SO4; 4=11NO3; 5=NnO11 ; 6= Other l'nsJihlt• /lt, zrm/ ft/e111ijicatio11 Sample Disposal
COC No: '1
JoF(., COCs
Laboralory's Job No.

Laboralorys Sample Specific Notes:

D Non-Hazard 0 Flammable D Skin lrrirmrt □ Poison IJ □ U11k11ow11 D Re/um To Clien/ D Disposal By Lab □ Archive For Months Special I11,1rrrcIiorrs/QC Reqrrirenienu & ConrnrcnIs: Email results to [email protected]; [email protected] and bmoss i corncrstoncearth.com Please Report on a Dry Weight Basis R~i1J4 7)1AJt, Company: 1f!,t h~ Received b:1,· / ~0¥~. ,u Cornerstone Eanh Group ,. A _/_J-y ur</,..,.,.•, Daif!-k/v7.- /lf~ ct;('-- - - Rcffiiqtlrshcd by: Company: Datc/fime: Received 6y: (J Company: DaIc/fime:

Relinquished by: Company: DaIc/fime: Received by: Company: DaIc/fime:
4 83 S i nclai r F r ont a ge Rd_,. M i l pit as. C A 9 5 0 35 I rel : 408.263.5258 I ,ax: -40B. 263. 8 293 I wwvv_t o r ron t lab~c-o m 1105
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Cornerstone Earth Group
1259 Oakmead Parkway
Sunnyvale, California 94035
Tel: (408) 245-4600
Fax: (408) 245-4620
RE: Mitty Way and Lawrence Expressway
Torrent Laboratory, Inc. received 21 sample(s) on January 25, 2022 for the analyses presented in the following Report.

Dear Ron Helm:

Work Order No.: 2201194 Rev: 1
All data for associated QC met EPA or laboratory specification(s) except where noted in the case narrative.

Torrent Laboratory, Inc. is certified by the State of California, ELAP #1991. If you have any questions regarding these test results, please feel free to contact the Project Management Team at (408)263-5258; ext 204.

Date
February 01, 2022
Kathie Evans
Project Manager
Total Page Count: 38 Page 1 of 38
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Date: 2/1/2022
Client: Cornerstone Earth Group
Project: Mitty Way and Lawrence Expressway
Work Order: 2201194

CASE NARRATIVE
Unless otherwise indicated in the following narrative, no issues encountered with the receiving, preparation, analysis or reporting of the results associated with this work order.

Unless otherwise indicated in the following narrative, no results have been method and/or field blank corrected.

Reported results relate only to the items/samples tested by the laboratory.

This report shall not be reproduced, except in full, without the written approval of Torrent Laboratory, Inc
Data is reported on a dry weight basis.

REVISIONS
Report revised to include STLC and TCLP data.

STLC
Note: Extraction of 50 g sample / 500g 0.2M Sodium Citrate Solution was performed according to wet extraction procedure (WET) which was rotated in a rotary shaker for 48 hours (+/- 4 hours).

Date Prepared: 2/3/22 at 6:00 PM to 2/5/22 at 2:30 PM
TCLP
Note: Extraction of 100 g sample/2000 g TCLP Fluid #1 was performed according to Toxicity Characteristic Leaching Procedure (SW-846 1311TCLP) which was rotated in a rotary shaker@ 32 RPM for 18 hours (+/- 2 hours).

Date Prepared: 2/8/222 at 8:30 PM to 2/9/22 at 12:30 PM Rev. 1 (2/10/22)
Total Page Count: 38 Page 2 of 38
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Report prepared for: Ron Helm
Cornerstone Earth Group
Date Received: 01/25/22
Date Reported: 02/01/22
Sample Result Summary
SS-16 (0-1) 2201194-001
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 1.22 %
Dry Weight Factor ASTM D2216-90 111 1.01 %
Lead SW6010B 1 0.12 3.0 3.64 mg/Kg
SS-16 (2-3) 2201194-002
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 10.4 %
Dry Weight Factor ASTM D2216-90 111 1.10 %
Lead SW6010B 1 0.13 3.3 10.2 mg/Kg
SS-16 (4-5) 2201194-003
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 18.4 %
Dry Weight Factor ASTM D2216-90 111 1.18 %
Lead SW6010B 1 0.14 3.5 9.20 mg/Kg
SS-12 (0-1) 2201194-004
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 13.0 %
Dry Weight Factor ASTM D2216-90 111 1.13 %
Lead SW6010B 1 0.14 3.4 35.3 mg/Kg
SS-12 (2-3) 2201194-005
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 12.3 %
Dry Weight Factor ASTM D2216-90 111 1.12 %
Lead SW6010B 1 0.13 3.4 8.40 mg/Kg
SS-12 (4-5) 2201194-006
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 6.97 %
Dry Weight Factor ASTM D2216-90 111 1.07 %
Lead SW6010B 1 0.13 3.2 9.15 mg/Kg
Total Page Count: 38 Page 3 of 38
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Report prepared for: Ron Helm
Cornerstone Earth Group
Date Received: 01/25/22
Date Reported: 02/01/22
Sample Result Summary
SS-13 (0-1) 2201194-007
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 21.8 %
Dry Weight Factor ASTM D2216-90 111 1.22 %
Lead SW6010B 1 0.15 3.7 220 mg/Kg
Lead (STLC) SW6010B 1 0.050 0.20 7.01 mg/L
SS-13 (2-3) 2201194-008
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 17.3 %
Dry Weight Factor ASTM D2216-90 111 1.17 %
Lead SW6010B 1 0.14 3.5 19.0 mg/Kg
SS-13 (4-5) 2201194-009
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 20.8 %
Dry Weight Factor ASTM D2216-90 111 1.21 %
Lead SW6010B 1 0.15 3.6 10.4 mg/Kg
SS-15 (0-1) 2201194-010
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 7.72 %
Dry Weight Factor ASTM D2216-90 111 1.08 %
Lead SW6010B 1 0.13 3.2 12.8 mg/Kg
SS-15 (2-3) 2201194-011
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 12.9 %
Dry Weight Factor ASTM D2216-90 111 1.13 %
Lead SW6010B 1 0.14 3.4 16.8 mg/Kg
SS-15 (4-5) 2201194-012
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 18.3 %
Dry Weight Factor ASTM D2216-90 111 1.18 %
Lead SW6010B 1 0.14 3.5 11.0 mg/Kg
Total Page Count: 38 Page 4 of 38
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Report prepared for: Ron Helm
Cornerstone Earth Group
Date Received: 01/25/22
Date Reported: 02/01/22
Sample Result Summary
SS-6A (0-1) 2201194-013
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 13.8 %
Dry Weight Factor ASTM D2216-90 111 1.14 %
Lead SW6010B 1 0.14 3.4 26.4 mg/Kg
SS-6A (2-3) 2201194-014
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 18.8 %
Dry Weight Factor ASTM D2216-90 111 1.19 %
Lead SW6010B 1 0.14 3.6 9.88 mg/Kg
SS-6A (4-5) 2201194-015
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 13.1 %
Dry Weight Factor ASTM D2216-90 111 1.13 %
Lead SW6010B 1 0.14 3.4 10.2 mg/Kg
SS-6B (0-1) 2201194-016
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 9.42 %
Dry Weight Factor ASTM D2216-90 111 1.09 %
Lead SW6010B 1 0.13 3.3 11.1 mg/Kg
SS-6B (2-3) 2201194-017
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 29.4 %
Dry Weight Factor ASTM D2216-90 111 1.29 %
Lead SW6010B 1 0.15 3.9 11.6 mg/Kg
SS-6B (4-5) 2201194-018
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 19.2 %
Dry Weight Factor ASTM D2216-90 111 1.19 %
Lead SW6010B 1 0.14 3.6 9.52 mg/Kg
Total Page Count: 38 Page 5 of 38
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Report prepared for: Ron Helm
Cornerstone Earth Group
Date Received: 01/25/22
Date Reported: 02/01/22
Sample Result Summary
SS-6C (0-1) 2201194-019
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 9.79 %
Dry Weight Factor ASTM D2216-90 111 1.10 %
Lead SW6010B 1 0.13 3.3 14.5 mg/Kg
SS-6C (2-3) 2201194-020
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 19.7 %
Dry Weight Factor ASTM D2216-90 111 1.20 %
Lead SW6010B 1 0.14 3.6 9.18 mg/Kg
SS-6C (4-5) 2201194-021
Parameters: Analysis DF MDL PQL Results Unit
Method
Moisture, Percent ASTM D2216-90 1 0.050 0.050 19.6 %
Dry Weight Factor ASTM D2216-90 111 1.20 %
Lead SW6010B 1 0.14 3.6 10.6 mg/Kg
Total Page Count: 38 Page 6 of 38
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SAMPLE RESULTS
Report prepared for:

Date Reported: 02/01/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 12:36
1340-1-1
Mitty Way and Lawrence Expressway
SS-16 (0-1)
Sample Matrix: Soil
Lab Sample ID: 2201194-001A
SDG:

Prep Batch ID: 1138781
Prep Batch Date/Time: 1/31/22 8:00:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463204 0.12 3.0 3.64 02/01/22 13:20 ERR Prep Batch ID: 1138792
Prep Batch Date/Time: 1/28/22 7:15:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463192 0.050 0.050 1.22 02/01/22 D2216-90
13:00 PHUY
Dry Weight Factor ASTM 1 - 463192 11 1.01 02/01/22
D2216-90
13:00 PHUY
Total Page Count: 38 Page 7 of 38
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I I I I I I
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SAMPLE RESULTS
Report prepared for:

Date Reported: 02/01/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 12:38
1340-1-1
Mitty Way and Lawrence Expressway
SS-16 (2-3)
Sample Matrix: Soil
Lab Sample ID: 2201194-002A
SDG:

Prep Batch ID: 1138781
Prep Batch Date/Time: 1/31/22 8:00:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463204 0.13 3.3 10.2 02/01/22 13:25 ERR Prep Batch ID: 1138792
Prep Batch Date/Time: 1/28/22 7:15:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463192 0.050 0.050 10.4 02/01/22 D2216-90
13:00 PHUY
Dry Weight Factor ASTM 1 - 463192 11 1.10 02/01/22
D2216-90
13:00 PHUY
Total Page Count: 38 Page 8 of 38
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I I I I I I

I I I I I I
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SAMPLE RESULTS
Report prepared for:

Date Reported: 02/01/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 12:40
1340-1-1
Mitty Way and Lawrence Expressway
SS-16 (4-5)
Sample Matrix: Soil
Lab Sample ID: 2201194-003A
SDG:

Prep Batch ID: 1138781
Prep Batch Date/Time: 1/31/22 8:00:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463204 0.14 3.5 9.20 02/01/22 13:27 ERR Prep Batch ID: 1138792
Prep Batch Date/Time: 1/28/22 7:15:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463192 0.050 0.050 18.4 02/01/22 D2216-90
13:00 PHUY
Dry Weight Factor ASTM 1 - 463192 11 1.18 02/01/22
D2216-90
13:00 PHUY
Total Page Count: 38 Page 9 of 38
DRAFT

I I I I I I

I I I I I I
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SAMPLE RESULTS
Report prepared for:

Date Reported: 02/01/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 13:10
1340-1-1
Mitty Way and Lawrence Expressway
SS-12 (0-1)
Sample Matrix: Soil
Lab Sample ID: 2201194-004A
SDG:

Prep Batch ID: 1138781
Prep Batch Date/Time: 1/31/22 8:00:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463204 0.14 3.4 35.3 02/01/22 13:32 ERR Prep Batch ID: 1138792
Prep Batch Date/Time: 1/28/22 7:15:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463192 0.050 0.050 13.0 02/01/22 D2216-90
13:00 PHUY
Dry Weight Factor ASTM 1 - 463192 11 1.13 02/01/22
D2216-90
13:00 PHUY
Total Page Count: 38 Page 10 of 38
DRAFT

I I I I I I

I I I I I I
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SAMPLE RESULTS
Report prepared for:

Date Reported: 02/01/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 13:12
1340-1-1
Mitty Way and Lawrence Expressway
SS-12 (2-3)
Sample Matrix: Soil
Lab Sample ID: 2201194-005A
SDG:

Prep Batch ID: 1138781
Prep Batch Date/Time: 1/31/22 8:00:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463204 0.13 3.4 8.40 02/01/22 13:33 ERR Prep Batch ID: 1138792
Prep Batch Date/Time: 1/28/22 7:15:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463192 0.050 0.050 12.3 02/01/22 D2216-90
13:00 PHUY
Dry Weight Factor ASTM 1 - 463192 11 1.12 02/01/22
D2216-90
13:00 PHUY
Total Page Count: 38 Page 11 of 38
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I I I I I I
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SAMPLE RESULTS
Report prepared for:

Date Reported: 02/01/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 13:14
1340-1-1
Mitty Way and Lawrence Expressway
SS-12 (4-5)
Sample Matrix: Soil
Lab Sample ID: 2201194-006A
SDG:

Prep Batch ID: 1138781
Prep Batch Date/Time: 1/31/22 8:00:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463204 0.13 3.2 9.15 02/01/22 13:35 ERR Prep Batch ID: 1138792
Prep Batch Date/Time: 1/28/22 7:15:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463192 0.050 0.050 6.97 02/01/22 D2216-90
13:00 PHUY
Dry Weight Factor ASTM 1 - 463192 11 1.07 02/01/22
D2216-90
13:00 PHUY
Total Page Count: 38 Page 12 of 38
DRAFT

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1117 of 1296

SAMPLE RESULTS
Report prepared for:

Date Reported: 02/01/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 13:18
1340-1-1
Mitty Way and Lawrence Expressway
SS-13 (0-1)
Sample Matrix: Soil
Lab Sample ID: 2201194-007A
SDG:

Prep Batch ID: 1138781
Prep Batch Date/Time: 1/31/22 8:00:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463204 0.15 3.7 220 02/01/22 13:37 ERR Prep Batch ID: 1139082
Prep Batch Date/Time: 2/10/22 3:00:00PM
Prep Analyst: ERAGUDO
Prep Method: WET/3010B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead (STLC) SW6010B 1 mg/L 463482 0.050 0.20 7.01 02/10/22 15:42 ERR Prep Batch ID: 1139038
Prep Batch Date/Time: 2/9/22 2:30:00PM
Prep Analyst: ERAGUDO
Prep Method: 1311/3010B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead (TCLP) SW6010B 1 mg/L 463438 0.050 0.20 ND 02/09/22 17:25 ERR Prep Batch ID: 1138792
Prep Batch Date/Time: 1/28/22 7:15:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463192 0.050 0.050 21.8 02/01/22 D2216-90
13:00 PHUY
Dry Weight Factor ASTM 1 - 463192 11 1.22 02/01/22
D2216-90
13:00 PHUY
Total Page Count: 38 Page 13 of 38
DRAFT

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I I I I I I
483 S i nclair..- Fronta ge Rd-,. M i lpit ta.s ., CA 9 5 0 35, I ,raJ: 408. 263 . 5258 I '1'.ax: 408. 263 . 829·3 I vvvvvv.to rent lab-co m 1118
CC 07-02-2024
1118 of 1296

SAMPLE RESULTS
Report prepared for:

Date Reported: 02/01/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 13:20
1340-1-1
Mitty Way and Lawrence Expressway
SS-13 (2-3)
Sample Matrix: Soil
Lab Sample ID: 2201194-008A
SDG:

Prep Batch ID: 1138781
Prep Batch Date/Time: 1/31/22 8:00:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463204 0.14 3.5 19.0 02/01/22 13:38 ERR Prep Batch ID: 1138792
Prep Batch Date/Time: 1/28/22 7:15:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463192 0.050 0.050 17.3 02/01/22 D2216-90
13:00 PHUY
Dry Weight Factor ASTM 1 - 463192 11 1.17 02/01/22
D2216-90
13:00 PHUY
Total Page Count: 38 Page 14 of 38
DRAFT

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I I I I I I
483 S i nclair..- Fronta ge Rd-,. M i lpit ta.s ., CA 9 5 0 35, I ,raJ: 408. 263 . 5258 I '1'.ax: 408. 263 . 829·3 I vvvvvv.to rent lab-co m 1119
CC 07-02-2024
1119 of 1296

SAMPLE RESULTS
Report prepared for:

Date Reported: 02/01/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 13:22
1340-1-1
Mitty Way and Lawrence Expressway
SS-13 (4-5)
Sample Matrix: Soil
Lab Sample ID: 2201194-009A
SDG:

Prep Batch ID: 1138781
Prep Batch Date/Time: 1/31/22 8:00:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463204 0.15 3.6 10.4 02/01/22 13:40 ERR Prep Batch ID: 1138792
Prep Batch Date/Time: 1/28/22 7:15:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463192 0.050 0.050 20.8 02/01/22 D2216-90
13:00 PHUY
Dry Weight Factor ASTM 1 - 463192 11 1.21 02/01/22
D2216-90
13:00 PHUY
Total Page Count: 38 Page 15 of 38
DRAFT

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I I I I I I
483 S i nclair..- Fronta ge Rd-,. M i lpit ta.s ., CA 9 5 0 35, I ,raJ: 408. 263 . 5258 I '1'.ax: 408. 263 . 829·3 I vvvvvv.to rent lab-co m 1120
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1120 of 1296

SAMPLE RESULTS
Report prepared for:

Date Reported: 02/01/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 13:30
1340-1-1
Mitty Way and Lawrence Expressway
SS-15 (0-1)
Sample Matrix: Soil
Lab Sample ID: 2201194-010A
SDG:

Prep Batch ID: 1138781
Prep Batch Date/Time: 1/31/22 8:00:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463204 0.13 3.2 12.8 02/01/22 13:42 ERR Prep Batch ID: 1138792
Prep Batch Date/Time: 1/28/22 7:15:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463192 0.050 0.050 7.72 02/01/22 D2216-90
13:00 PHUY
Dry Weight Factor ASTM 1 - 463192 11 1.08 02/01/22
D2216-90
13:00 PHUY
Total Page Count: 38 Page 16 of 38
DRAFT

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I I I I I I
483 S i nclair..- Fronta ge Rd-,. M i lpit ta.s ., CA 9 5 0 35, I ,raJ: 408. 263 . 5258 I '1'.ax: 408. 263 . 829·3 I vvvvvv.to rent lab-co m 1121
CC 07-02-2024
1121 of 1296

SAMPLE RESULTS
Report prepared for:

Date Reported: 02/01/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 13:32
1340-1-1
Mitty Way and Lawrence Expressway
SS-15 (2-3)
Sample Matrix: Soil
Lab Sample ID: 2201194-011A
SDG:

Prep Batch ID: 1138781
Prep Batch Date/Time: 1/31/22 8:00:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463204 0.14 3.4 16.8 02/01/22 13:45 ERR Prep Batch ID: 1138792
Prep Batch Date/Time: 1/28/22 7:15:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463192 0.050 0.050 12.9 02/01/22 D2216-90
13:00 PHUY
Dry Weight Factor ASTM 1 - 463192 11 1.13 02/01/22
D2216-90
13:00 PHUY
Total Page Count: 38 Page 17 of 38
DRAFT

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I I I I I I
483 S i nclair..- Fronta ge Rd-,. M i lpit ta.s ., CA 9 5 0 35, I ,raJ: 408. 263 . 5258 I '1'.ax: 408. 263 . 829·3 I vvvvvv.to rent lab-co m 1122
CC 07-02-2024
1122 of 1296

SAMPLE RESULTS
Report prepared for:

Date Reported: 02/01/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 13:34
1340-1-1
Mitty Way and Lawrence Expressway
SS-15 (4-5)
Sample Matrix: Soil
Lab Sample ID: 2201194-012A
SDG:

Prep Batch ID: 1138781
Prep Batch Date/Time: 1/31/22 8:00:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463204 0.14 3.5 11.0 02/01/22 13:47 ERR Prep Batch ID: 1138792
Prep Batch Date/Time: 1/28/22 7:15:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463192 0.050 0.050 18.3 02/01/22 D2216-90
13:00 PHUY
Dry Weight Factor ASTM 1 - 463192 11 1.18 02/01/22
D2216-90
13:00 PHUY
Total Page Count: 38 Page 18 of 38
DRAFT

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I I I I I I
483 S i nclair..- Fronta ge Rd-,. M i lpit ta.s ., CA 9 5 0 35, I ,raJ: 408. 263 . 5258 I '1'.ax: 408. 263 . 829·3 I vvvvvv.to rent lab-co m 1123
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1123 of 1296

SAMPLE RESULTS
Report prepared for:

Date Reported: 02/01/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 13:38
1340-1-1
Mitty Way and Lawrence Expressway
SS-6A (0-1)
Sample Matrix: Soil
Lab Sample ID: 2201194-013A
SDG:

Prep Batch ID: 1138781
Prep Batch Date/Time: 1/31/22 8:00:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463204 0.14 3.4 26.4 02/01/22 13:52 ERR Prep Batch ID: 1138796
Prep Batch Date/Time: 1/31/22 8:00:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463195 0.050 0.050 13.8 02/01/22 D2216-90
16:00 PHUY
Dry Weight Factor ASTM 1 - 463195 11 1.14 02/01/22
D2216-90
16:00 PHUY
Total Page Count: 38 Page 19 of 38
DRAFT

I I I I I I

I I I I I I
483 S i nclair..- Fronta ge Rd-,. M i lpit ta.s ., CA 9 5 0 35, I ,raJ: 408. 263 . 5258 I '1'.ax: 408. 263 . 829·3 I vvvvvv.to rent lab-co m 1124
CC 07-02-2024
1124 of 1296

SAMPLE RESULTS
Report prepared for:

Date Reported: 02/01/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 13:40
1340-1-1
Mitty Way and Lawrence Expressway
SS-6A (2-3)
Sample Matrix: Soil
Lab Sample ID: 2201194-014A
SDG:

Prep Batch ID: 1138781
Prep Batch Date/Time: 1/31/22 8:00:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463204 0.14 3.6 9.88 02/01/22 13:53 ERR Prep Batch ID: 1138796
Prep Batch Date/Time: 1/31/22 8:00:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463195 0.050 0.050 18.8 02/01/22 D2216-90
16:00 PHUY
Dry Weight Factor ASTM 1 - 463195 11 1.19 02/01/22
D2216-90
16:00 PHUY
Total Page Count: 38 Page 20 of 38
DRAFT

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I I I I I I
483 S i nclair..- Fronta ge Rd-,. M i lpit ta.s ., CA 9 5 0 35, I ,raJ: 408. 263 . 5258 I '1'.ax: 408. 263 . 829·3 I vvvvvv.to rent lab-co m 1125
CC 07-02-2024
1125 of 1296

SAMPLE RESULTS
Report prepared for:

Date Reported: 02/01/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 13:42
1340-1-1
Mitty Way and Lawrence Expressway
SS-6A (4-5)
Sample Matrix: Soil
Lab Sample ID: 2201194-015A
SDG:

Prep Batch ID: 1138781
Prep Batch Date/Time: 1/31/22 8:00:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463204 0.14 3.4 10.2 02/01/22 13:55 ERR Prep Batch ID: 1138796
Prep Batch Date/Time: 1/31/22 8:00:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463195 0.050 0.050 13.1 02/01/22 D2216-90
16:00 PHUY
Dry Weight Factor ASTM 1 - 463195 11 1.13 02/01/22
D2216-90
16:00 PHUY
Total Page Count: 38 Page 21 of 38
DRAFT

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I I I I I I
483 S i nclair..- Fronta ge Rd-,. M i lpit ta.s ., CA 9 5 0 35, I ,raJ: 408. 263 . 5258 I '1'.ax: 408. 263 . 829·3 I vvvvvv.to rent lab-co m 1126
CC 07-02-2024
1126 of 1296

SAMPLE RESULTS
Report prepared for:

Date Reported: 02/01/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 13:44
1340-1-1
Mitty Way and Lawrence Expressway
SS-6B (0-1)
Sample Matrix: Soil
Lab Sample ID: 2201194-016A
SDG:

Prep Batch ID: 1138781
Prep Batch Date/Time: 1/31/22 8:00:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463204 0.13 3.3 11.1 02/01/22 13:57 ERR Prep Batch ID: 1138796
Prep Batch Date/Time: 1/31/22 8:00:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463195 0.050 0.050 9.42 02/01/22 D2216-90
16:00 PHUY
Dry Weight Factor ASTM 1 - 463195 11 1.09 02/01/22
D2216-90
16:00 PHUY
Total Page Count: 38 Page 22 of 38
DRAFT

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I I I I I I
483 S i nclair..- Fronta ge Rd-,. M i lpit ta.s ., CA 9 5 0 35, I ,raJ: 408. 263 . 5258 I '1'.ax: 408. 263 . 829·3 I vvvvvv.to rent lab-co m 1127
CC 07-02-2024
1127 of 1296

SAMPLE RESULTS
Report prepared for:

Date Reported: 02/01/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 13:46
1340-1-1
Mitty Way and Lawrence Expressway
SS-6B (2-3)
Sample Matrix: Soil
Lab Sample ID: 2201194-017A
SDG:

Prep Batch ID: 1138781
Prep Batch Date/Time: 1/31/22 8:00:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463204 0.15 3.9 11.6 02/01/22 13:58 ERR Prep Batch ID: 1138796
Prep Batch Date/Time: 1/31/22 8:00:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463195 0.050 0.050 29.4 02/01/22 D2216-90
16:00 PHUY
Dry Weight Factor ASTM 1 - 463195 11 1.29 02/01/22
D2216-90
16:00 PHUY
Total Page Count: 38 Page 23 of 38
DRAFT

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I I I I I I
483 S i nclair..- Fronta ge Rd-,. M i lpit ta.s ., CA 9 5 0 35, I ,raJ: 408. 263 . 5258 I '1'.ax: 408. 263 . 829·3 I vvvvvv.to rent lab-co m 1128
CC 07-02-2024
1128 of 1296

SAMPLE RESULTS
Report prepared for:

Date Reported: 02/01/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 13:48
1340-1-1
Mitty Way and Lawrence Expressway
SS-6B (4-5)
Sample Matrix: Soil
Lab Sample ID: 2201194-018A
SDG:

Prep Batch ID: 1138781
Prep Batch Date/Time: 1/31/22 8:00:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463204 0.14 3.6 9.52 02/01/22 14:02 ERR Prep Batch ID: 1138796
Prep Batch Date/Time: 1/31/22 8:00:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463195 0.050 0.050 19.2 02/01/22 D2216-90
16:00 PHUY
Dry Weight Factor ASTM 1 - 463195 11 1.19 02/01/22
D2216-90
16:00 PHUY
Total Page Count: 38 Page 24 of 38
DRAFT

I I I I I I

I I I I I I
483 S i nclair..- Fronta ge Rd-,. M i lpit ta.s ., CA 9 5 0 35, I ,raJ: 408. 263 . 5258 I '1'.ax: 408. 263 . 829·3 I vvvvvv.to rent lab-co m 1129
CC 07-02-2024
1129 of 1296

SAMPLE RESULTS
Report prepared for:

Date Reported: 02/01/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 13:50
1340-1-1
Mitty Way and Lawrence Expressway
SS-6C (0-1)
Sample Matrix: Soil
Lab Sample ID: 2201194-019A
SDG:

Prep Batch ID: 1138781
Prep Batch Date/Time: 1/31/22 8:00:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463204 0.13 3.3 14.5 02/01/22 14:03 ERR Prep Batch ID: 1138796
Prep Batch Date/Time: 1/31/22 8:00:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463195 0.050 0.050 9.79 02/01/22 D2216-90
16:00 PHUY
Dry Weight Factor ASTM 1 - 463195 11 1.10 02/01/22
D2216-90
16:00 PHUY
Total Page Count: 38 Page 25 of 38
DRAFT

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I I I I I I
483 S i nclair..- Fronta ge Rd-,. M i lpit ta.s ., CA 9 5 0 35, I ,raJ: 408. 263 . 5258 I '1'.ax: 408. 263 . 829·3 I vvvvvv.to rent lab-co m 1130
CC 07-02-2024
1130 of 1296

SAMPLE RESULTS
Report prepared for:

Date Reported: 02/01/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 13:52
1340-1-1
Mitty Way and Lawrence Expressway
SS-6C (2-3)
Sample Matrix: Soil
Lab Sample ID: 2201194-020A
SDG:

Prep Batch ID: 1138781
Prep Batch Date/Time: 1/31/22 8:00:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463204 0.14 3.6 9.18 02/01/22 14:05 ERR Prep Batch ID: 1138796
Prep Batch Date/Time: 1/31/22 8:00:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463195 0.050 0.050 19.7 02/01/22 D2216-90
16:00 PHUY
Dry Weight Factor ASTM 1 - 463195 11 1.20 02/01/22
D2216-90
16:00 PHUY
Total Page Count: 38 Page 26 of 38
DRAFT

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I I I I I I
483 S i nclair..- Fronta ge Rd-,. M i lpit ta.s ., CA 9 5 0 35, I ,raJ: 408. 263 . 5258 I '1'.ax: 408. 263 . 829·3 I vvvvvv.to rent lab-co m 1131
CC 07-02-2024
1131 of 1296

SAMPLE RESULTS
Report prepared for:

Date Reported: 02/01/22
Date/Time Received: 01/25/22, 2:55 pm
Cornerstone Earth Group
Ron Helm
Client Sample ID:

Date/Time Sampled:

Project Number:

Project Name/Location:
01/25/22 / 13:54
1340-1-1
Mitty Way and Lawrence Expressway
SS-6C (4-5)
Sample Matrix: Soil
Lab Sample ID: 2201194-021A
SDG:

Prep Batch ID: 1138782
Prep Batch Date/Time: 1/31/22 8:00:00PM
Prep Analyst: ERAGUDO
Prep Method: 3050B
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Lead SW6010B 1 mg/Kg 463205 0.14 3.6 10.6 02/01/22 14:17 ERR Prep Batch ID: 1138796
Prep Batch Date/Time: 1/31/22 8:00:00PM
Prep Analyst: PHUY
Prep Method: % Water-P
Parameters:

Analytical
Q Units Batch
DF MDL PQL Results
Analyzed
Analysis
Method Time By
Moisture, Percent ASTM 1 % 463195 0.050 0.050 19.6 02/01/22 D2216-90
16:00 PHUY
Dry Weight Factor ASTM 1 - 463195 11 1.20 02/01/22
D2216-90
16:00 PHUY
Total Page Count: 38 Page 27 of 38
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I I I I I I

I I I I I I
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MB Summary Report
Work Order:

Matrix:

Units:

Prep Method:

Analytical SW6010B
Method:

Prep Date:

Analyzed Date:
01/31/22 Prep Batch:

Analytical
Batch:
mg/Kg
3050B 1138781
Soil 463204
2201194
2/1/2022
Parameters
Method
Blank
Conc.

MDL PQL
Lab
Qualifier
Lead 0.10 0.10 3.00
Work Order:

Matrix:

Units:

Prep Method:

Analytical SW6010B
Method:

Prep Date:

Analyzed Date:
01/31/22 Prep Batch:

Analytical
Batch:
mg/Kg
3050B 1138782
Soil 463205
2201194
2/1/2022
Parameters
Method
Blank
Conc.

MDL PQL
Lab
Qualifier
Arsenic 0.16 0.15 1.30
Lead 0.13 0.10 3.00
Work Order:

Matrix:

Units:

Prep Method:

Analytical ASTM D2216-90
Method:

Prep Date:

Analyzed Date:
01/28/22 Prep Batch:

Analytical
Batch:
mg/L
% Water-P 1138792
Soil 463192
2201194
2/1/2022
Parameters
Method
Blank
Conc.

MDL PQL
Lab
Qualifier
Moisture, Percent 0.050 0.050 ND
Work Order:

Matrix:

Units:

Prep Method:

Analytical ASTM D2216-90
Method:

Prep Date:

Analyzed Date:
01/31/22 Prep Batch:

Analytical
Batch:
mg/L
% Water-P 1138796
Soil 463195
2201194
2/1/2022
Parameters
Method
Blank
Conc.

MDL PQL
Lab
Qualifier
Moisture, Percent 0.050 0.050 ND
Total Page Count: 38 Page 28 of 38
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MB Summary Report
Work Order:

Matrix:

Units:

Prep Method:

Analytical SW6010B
Method:

Prep Date:

Analyzed Date:
02/09/22 Prep Batch:

Analytical
Batch:
mg/L
1311/3010B 1139038
Soil 463438
2201194
2/9/2022
Parameters
Method
Blank
Conc.

MDL PQL
Lab
Qualifier
Barium (TCLP) 0.020 0.20 ND
Chromium (TCLP) 0.010 0.20 ND
Lead (TCLP) 0.050 0.20 ND
Work Order:

Matrix:

Units:

Prep Method:

Analytical SW6010B
Method:

Prep Date:

Analyzed Date:
02/10/22 Prep Batch:

Analytical
Batch:
mg/L
WET/3010B 1139082
Soil 463482
2201194
2/10/2022
Parameters
Method
Blank
Conc.

MDL PQL
Lab
Qualifier
Chromium (STLC) 0.010 0.20 ND
Lead (STLC) 0.050 0.20 ND
Zinc (STLC) 0.080 0.20 ND
Total Page Count: 38 Page 29 of 38
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LCS/LCSD Summary Report
Raw values are used in quality control assessment.

Work Order:

Matrix:

Units:

Prep Method:

Analytical
Method:

Prep Date:

Analyzed Date:
01/31/22 Prep Batch:

Analytical
Batch:
3050B 1138781
SW6010B 2/1/2022 463204
mg/Kg
2201194
Soil
Parameters MDL PQL
Method
Blank
Conc.

Spike
Conc.

LCS %
Recovery
LCSD %
Recovery

LCS/LCSD
% RPD
%
Recovery
Limits
% RPD
Limits
Lab
Qualifier
Lead 0.10 3.00 0.10 50 99.1 99.4 0.201 80 - 120 30
Work Order:

Matrix:

Units:

Prep Method:

Analytical
Method:

Prep Date:

Analyzed Date:
01/31/22 Prep Batch:

Analytical
Batch:
3050B 1138782
SW6010B 2/1/2022 463205
mg/Kg
2201194
Soil
Parameters MDL PQL
Method
Blank
Conc.

Spike
Conc.

LCS %
Recovery
LCSD %
Recovery

LCS/LCSD
% RPD
%
Recovery
Limits
% RPD
Limits
Lab
Qualifier
Arsenic 0.15 1.30 0.16 50 94.2 96.2 2.10 80 - 120 30
Lead 0.10 2.22 30 3.00 50 0.13 97.7 99.9 80 - 120
Work Order:

Matrix:

Units:

Prep Method:

Analytical
Method:

Prep Date:

Analyzed Date:
02/09/22 Prep Batch:

Analytical
Batch:
1311/3010B 1139038
SW6010B 2/9/2022 463438
mg/L
2201194
Soil
Parameters MDL PQL
Method
Blank
Conc.

Spike
Conc.

LCS %
Recovery
LCSD %
Recovery

LCS/LCSD
% RPD
%
Recovery
Limits
% RPD
Limits
Lab
Qualifier
Barium (TCLP) 0.020 0.20 ND 10 93.9 95.0 1.16 80 - 120 20 Chromium (TCLP) 0.010 0.20 ND 10 94.4 95.4 1.05 80 - 120 20 Lead (TCLP) 0.050 0.20 ND 10 93.1 94.4 1.39 80 - 120 20 Work Order:

Matrix:

Units:

Prep Method:

Analytical
Method:

Prep Date:

Analyzed Date:
02/10/22 Prep Batch:

Analytical
Batch:

WET/3010B 1139082
SW6010B 2/10/2022 463482
mg/L
2201194
Soil
Parameters MDL PQL
Method
Blank
Conc.

Spike
Conc.

LCS %
Recovery
LCSD %
Recovery

LCS/LCSD
% RPD
%
Recovery
Limits
% RPD
Limits
Lab
Qualifier
Chromium (STLC) 0.010 0.20 ND 10 105 104 0.957 80 - 120 20 Lead (STLC) 0.050 0.20 ND 10 104 103 0.966 80 - 120 20
Zinc (STLC) 0.080 0.20 ND 10 105 105 0.000 80 - 120 20
Total Page Count: 38 Page 30 of 38
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MS/MSD Summary Report
Raw values are used in quality control assessment.

Work Order: 2201194
Analyzed Date:

Prep Date:

Matrix:

Prep Method: 01/31/22
Spiked Sample: 2201194-001A
Analytical
Method:

Prep Batch:

Units:

Analytical
Batch:
3050B 1138781
Soil 463204
mg/Kg
SW6010B 2/1/2022
Parameters MDL PQL Sample
Conc.

Spike
Conc.

MS %
Recovery
MSD %
Recovery
MS/MSD
% RPD
%
Recovery
Limits
% RPD
Limits
Lab
Qualifier
Lead 0.10 5.00 ND 50 92.7 94.7 1.98 67.9 - 118 30
Total Page Count: 38 Page 31 of 38
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Duplicate QC Summary Report
Work Order:

Matrix:

Units:

Prep Method:

Analytical
Method:

Prep Date:

Analyzed
Date:
1/28/2022 Prep Batch:

Analytical
Batch:
02/01/22
2201194
Lab Sample ID: 2201194-002A-DUP-1138792
% Water-P 1138792
ASTM D2216-90 463192
Parameters MDL PQL Sample
Result
Duplicate
Result
% RPD
Moisture, Percent 0.050 0.0500 10.4 10.4 0.00
Work Order:

Matrix:

Units:

Prep Method:

Analytical
Method:

Prep Date:

Analyzed
Date:
1/28/2022 Prep Batch:

Analytical
Batch:
02/01/22
2201194
Lab Sample ID: 2201194-008A-DUP-1138792
% Water-P 1138792
ASTM D2216-90 463192
Parameters MDL PQL Sample
Result
Duplicate
Result
% RPD
Moisture, Percent 0.050 0.0500 17.3 18.1 4.52
Work Order:

Matrix:

Units:

Prep Method:

Analytical
Method:

Prep Date:

Analyzed
Date:
1/31/2022 Prep Batch:

Analytical
Batch:
02/01/22
2201194
Lab Sample ID: 2201194-021A-DUP-1138796
% Water-P 1138796
ASTM D2216-90 463195
Parameters MDL PQL Sample
Result
Duplicate
Result
% RPD
Moisture, Percent 0.050 0.0500 19.6 19.8 1.02
Total Page Count: 38 Page 32 of 38
DRAFT
1-1-I== l--==-1-1
1-1-I== l--==-1-1
1-1-1 == 1--==-1-1
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Laboratory Qualifiers and Definitions
Method Detection Limit (MDL) - the minimum concentration of a substance that can be measured and reported with a 99% confidence that the analyte concentration is greater than zero
Matrix Spike (MS/MSD) - Client sample spiked with identical concentrations of target analyte (s). The spiking occurs prior to the sample preparation and analysis. They are used to document the precision and bias of a method in a given sample matrix.

Matrix - the component or substrate that contains the analyte of interest (e.g., - groundwater, sediment, soil, waste water, etc) Laboratory Control Sample (LCS ad LCSD) - A known matrix spiked with compounds representative of the target analyte(s). This is used to document laboratory performance.

Duplicate - a field sample and/or laboratory QC sample prepared in duplicate following all of the same processes and procedures used on the original sample (sample duplicate, LCSD, MSD)
Blank (Method/Preparation Blank) -MB/PB - An analyte-free matrix to which all reagents are added in the same volumes/proportions as used in sample processing. The method blank is used to document contamination resulting from the analytical process.

Practical Quantitation Limit/Reporting Limit/Limit of Quantitation (PQL/RL/LOQ) - a laboratory determined value at 2 to 5 times above the MDL that can be reproduced in a manner that results in a 99% confidence level that the result is both accurate and precise. PQLs/RLs/LODs reflect all preparation factors and/or dilution factors that have been applied to the sample during the preparation and/or analytical processes.

Precision (%RPD) - The agreement among a set of replicate/duplicate measurements without regard to known value of the replicates Surrogate (S) or (Surr) - An organic compound which is similar to the target analyte(s) in chemical composition and behavior in the analytical process, but which is not normally found in environmental samples. Surrogates are used in most organic analysis to demonstrate matrix compatibility with the chosen method of analysis
Tentatively Identified Compound (TIC) - A compound not contained within the analytical calibration standards but present in the GCMS library of defined compounds. When the library is searched for an unknown compound, it can frequently give a tentative identification to the compound based on retention time and primary and secondary ion match. TICs are reported as estimates and are candidates for further investigation.

Units: the unit of measure used to express the reported result - mg/L and mg/Kg (equivalent to PPM - parts per million in liquid and solid), ug/L and ug/Kg (equivalent to PPB - parts per billion in liquid and solid), ug/m3, mg/m3, ppbv and ppmv (all units of measure for reporting concentrations in air), % ( equivalent to 10000 ppm or 1,000,000 ppb), ug/Wipe ( concentration found on the surface of a single Wipe usually taken over a 100cm2 surface) B - Indicates when the analyte is found in the associated method or preparation blank D - Surrogate is not recoverable due to the necessary dilution of the sample E - Indicates the reportable value is outside of the calibration range of the instrument but within the linear range of the instrument (unless otherwise noted) Values reported with an E qualifier should be considered as estimated.

H- Indicates that the recommended holding time for the analyte or compound has been exceeded J- Indicates a value between the method MDL and PQL and that the reported concentration should be considered as estimated rather the quantitative NA - Not Analyzed
N/A - Not Applicable
ND - Not Detected at a concentration greater than the PQL/RL or, if reported to the MDL, at greater than the MDL.

NR - Not recoverable - a matrix spike concentration is not recoverable due to a concentration within the original sample that is greater than four times the spike concentration added
R- The % RPD between a duplicate set of samples is outside of the absolute values established by laboratory control charts S- Spike recovery is outside of established method and/or laboratory control limits. Further explanation of the use of this qualifier should be included within a case narrative
X -Used to indicate that a value based on pattern identification is within the pattern range but not typical of the pattern found in standards.

Further explanation may or may not be provided within the sample footnote and/or the case narrative.

DEFINITIONS:

Accuracy/Bias (% Recovery) - The closeness of agreement between an observed value and an accepted reference value.

LABORATORY QUALIFIERS:

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Sample Receipt Checklist
Client Name: Cornerstone Earth Group
Project Name: Mitty Way and Lawrence Expressway
Work Order No.: 2201194
Date and Time Received: 1/25/2022 2:55:00PM
Received By: Helena Ueng
Physically Logged By: Helena Ueng
Carrier Name: Client Drop Off
Checklist Completed By: Helena Ueng
Samples transported on ice
Comments:

Chain of Custody (COC) Information
Shipping Container/Cooler In Good Condition?
Custody seals intact on shipping container/cooler?
Custody seals intact on sample bottles?
Chain of custody present?
Chain of custody signed when relinquished and received? Chain of custody agrees with sample labels?
Samples in proper container/bottle?
Sufficient sample volume for indicated test?
All samples received within holding time?
Container/Temp Blank temperature in compliance?
Water-VOA vials have zero headspace?
Water-pH acceptable upon receipt?
Temperature:

Yes
Not Present
Not Present
Yes
Yes
Yes
Yes
Yes
Yes
No VOA vials submitted
N/A
Samples containers intact? Yes
°C
Sample Receipt Information
Sample Preservation and Hold Time (HT) Information
pH Checked by: N/A pH Adjusted by: N/A

8.0 Total Page Count: 38 Page 34 of 38
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Login Summary Report
Report Due Date:
1/25/2022
TL5119 Cornerstone Earth Group II
Mitty Way and Lawrence Expressway
1340-1-1
2/10/2022
TAT Requested:

Date Received:

Time Received:

QC Level:

Project Name:

Project # :

Comments:

Client ID:
5+ day:5
2:55 pm
Work Order # : 2201194
Requested Subbed
Tests
Test
On Hold
Sample
On Hold
Scheduled
Disposal
Collection Matrix
Date/Time
Client
Sample ID
WO Sample ID
2201194-001A Soil 07/24/22 SS-16 (0-1) 01/25/22 12:36
Met_S_AsPb Dry Wt
PMOIST
Sample Note: 6010-Lead
2201194-002A SS-16 (2-3) 01/25/22 12:38 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201194-003A SS-16 (4-5) 01/25/22 12:40 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201194-004A SS-12 (0-1) 01/25/22 13:10 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201194-005A SS-12 (2-3) 01/25/22 13:12 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201194-006A SS-12 (4-5) 01/25/22 13:14 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201194-007A SS-13 (0-1) 01/25/22 13:18 Soil 07/24/22
Met_S_AsPb Dry Wt
Met_S_CAM17TCLP
Met_S_CAM17STLC
PMOIST
2201194-008A SS-13 (2-3) 01/25/22 13:20 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201194-009A SS-13 (4-5) 01/25/22 13:22 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201194-010A SS-15 (0-1) 01/25/22 13:30 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201194-011A SS-15 (2-3) 01/25/22 13:32 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201194-012A SS-15 (4-5) 01/25/22 13:34 Soil 07/24/22
Total Page Count: 38 Page 35 of 38
DRAFT
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1140 of 1296
Login Summary Report
Report Due Date:
1/25/2022
TL5119 Cornerstone Earth Group II
Mitty Way and Lawrence Expressway
1340-1-1
2/10/2022
TAT Requested:

Date Received:

Time Received:

QC Level:

Project Name:

Project # :

Comments:

Client ID:
5+ day:5
2:55 pm
Work Order # : 2201194
Requested Subbed
Tests
Test
On Hold
Sample
On Hold
Scheduled
Disposal
Collection Matrix
Date/Time
Client
Sample ID
WO Sample ID
Met_S_AsPb Dry Wt
PMOIST
2201194-013A SS-6A (0-1) 01/25/22 13:38 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201194-014A SS-6A (2-3) 01/25/22 13:40 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201194-015A SS-6A (4-5) 01/25/22 13:42 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201194-016A SS-6B (0-1) 01/25/22 13:44 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201194-017A SS-6B (2-3) 01/25/22 13:46 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201194-018A SS-6B (4-5) 01/25/22 13:48 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201194-019A SS-6C (0-1) 01/25/22 13:50 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201194-020A SS-6C (2-3) 01/25/22 13:52 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
2201194-021A SS-6C (4-5) 01/25/22 13:54 Soil 07/24/22
Met_S_AsPb Dry Wt
PMOIST
Total Page Count: 38 Page 36 of 38
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Total Page Count: 38 Page 37 of 38
DRAFT
ls.I CORNERSTONE
EARTH GROUP Chain of Custody Record
Project Mnrrngcr: llon Helm Site Snmpler: Dill Howe /~ ti\ Cornerstone Earth Group, Inc. Tel/Fnx: 408-245-4600 Lab ConrncI: Knthie Evnns 1259 Oakmead Pkwy Anal)•sis Turnuround Time
Sunnyvale, California 94085
(408) 245-4600 Phone TAT if differct11 f1om lklow --
(408) 245-4620 FAX □ I week 0
g
Project: Mitty Park □ 3 days ~ Site: Mitty Way and Lawrence Expressway □ 0 2 days ..
< Project Number: 1340-1 -1 □ I day "'
~
]
Snmple Snmple Somple
.., #or ;;
Sample ldc111ific11tion Dale Time Type Matrix Cont. 0
!-
'S'S-'" (o ·lJ 1/25/2022 \ 21G, Liner Soil I 'f...
ss- 16 (Z-~J l23~ X
ss- 16 (4-S-) 12YO X
ss-n .. (o-\) 1,10 'X
,;<;. rz .. C-z..-~ J ,,n .. /I
cs. 'S-t'Z (4-S-J \~lY X
Ss, 13 C) .. IJ 131i ~
5S -11 1- :\ \ )3'l.C ~
ss. \~ ~--S-) 1111 Ix
5S-IS- Co-!\ 1~3<:> '/,.

S"S • l c; (Z-~) l~?.. X.

S:-S· I) (l{- $") 1"3'3\.\ I>
PrcscTl'ntion Used: t• l cc, 2• IICI; Jz 112SO4; 4=IINO3; S=NaOII; 6• Other Possible 1/azurt/ lde111ijicllfio11 Sample Disposal
Dm: 112512022 COC No: I
Lab: Torrent -.ofl,COCs
Laboralory's Job No.
·z)/o /f 1lf
Laboratory's Sample Specific Notes:
/4(, IA
...-f)07 .. Jt
--1JD"?1Jr
--ab ~/r
,--111r-k
/4DG
---tlD?J
---Ql) tA,,
--rmC /j,,
--Cl o
1) [/ I
..-01 v~
□ Non-Hazard D Flammable □ Skin lrri1m11 □ Poison 8 □ U11k11ow11 □ Return To Client □ Disposal By Lab □ Archive For Months --- Speci,l lns1nrc1ionslQC Reqnlrc111enIs & Comments: Email results to [email protected] ; [email protected] and [email protected] Please Report on a Dry Weight Basis A
RclrJ;;Jj J ~ Company: Jfi~1L<- Rcceivrp/''!;,, /
Comers1one Eanh Group ~~ D•rr~1?.,~ t l/ Jr '-11,,,.~
Relinquished by: y Company: DaIcffime: Received by: tJ Company: Dn1efl'ime:

Relinquished by: Compnny: Da1cffime: Received by: Company: DaIe!fime:
483 S i nclair F r ont age Rd.~ M i l pi,t as .. C A 95035 I t eJ: 4O8-. 263. 5258 I -Fax: 4O8. 263. B 293 I vvvvvv. t on·-en-Ua,b~corn 1142
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Total Page Count: 38 Page 38 of 38
DRAFT
ls.I CORNERSTONE
EARTH GROUP Chain of Custody Record
Project M11nngcr: Ron Helm Site Sampler: Bill Howe/ 1,S"t'r'\ Cornerstone Earth Group, Inc. Tel/Fax: 408-245-4600 L11h Conrnct: Knthie E,1 nns
1259 Oakmead Pkwy Analysis Turnnround Time
Sunnyvale, California 94085
(408) 245-4600 Phone TAT if different from Below -- (408) 245-4620 FAX I week 0 0 0
Projecl: Milly Park □ 3 days ~ Sile: Milly Way and Lawrence Expressway □ 2 days ~ < Projecl Number: 1340-1 -1 □ I day '-
::.
]
Sample Sompl, Sample
_,
#or " Sample ldentlflc111ion Ont, Time Type Matrix Cont c ;.
--S 'SS-~.A fo-1') 1/25/2022 n,~ Liner Soil I '/..
t;S-6P. (z-,") 13t/D x
css- (,}. {'-{-c;) J3L{(. '/,
55-,!) {o ~() l~~y x
SS· 6 B (-Z-)) 1'3Lf t Ix
S-<;- ,13 (4- ~) 11Y9 -/..

S'S'- '(. {6-\ ) 13<; o 'Is~-c;c (2-')) HS-Z. 'j,
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1340-1-1
APPENDIX E – 95% UCL CALCULATION OUTPUT SHEETS
DRAFT

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UCL Statistics for Data Sets with Non-Detects
User Selected Options
Date/Time of Computation ProUCL 5.12/23/2022 11:39:36 PM General Statistics
Total Number of Observations 37 Number of Distinct Observations 35 Number of Bootstrap Operations 2000
lead (0-1 feet)
From File 1340-1-1 ProUCL Input Worksheet.xls
Full Precision OFF
Confidence Coefficient 95%
Coefficient of Variation 1.215 Skewness 2.449
Maximum 220 Median 25.1
SD 51.33 Std. Error of Mean 8.438
Number of Missing Observations 0
Minimum 3.64 Mean 42.24
Data Not Normal at 5% Significance Level
Assuming Normal Distribution
95% Normal UCL 95% UCLs (Adjusted for Skewness)
Lilliefors Test Statistic 0.251 Lilliefors GOF Test
5% Lilliefors Critical Value 0.144 Data Not Normal at 5% Significance Level Normal GOF Test
Shapiro Wilk Test Statistic 0.679 Shapiro Wilk GOF Test 5% Shapiro Wilk Critical Value 0.936 Data Not Normal at 5% Significance Level 5% A-D Critical Value 0.775 Data Not Gamma Distributed at 5% Significance Level K-S Test Statistic 0.165 Kolmogorov-Smirnov Gamma GOF Test Gamma GOF Test
A-D Test Statistic 0.946 Anderson-Darling Gamma GOF Test 95% Student's-t UCL 56.49 95% Adjusted-CLT UCL (Chen-1995) 59.75 95% Modified-t UCL (Johnson-1978) 57.06
Theta hat (MLE) 38.73 Theta star (bias corrected MLE) 41.4 nu hat (MLE) 80.72 nu star (bias corrected) 75.51
Gamma Statistics
k hat (MLE) 1.091 k star (bias corrected MLE) 1.02
5% K-S Critical Value 0.149 Data Not Gamma Distributed at 5% Significance Level Data Not Gamma Distributed at 5% Significance Level
Assuming Gamma Distribution
95% Approximate Gamma UCL (use when n>=50)) 56.46 95% Adjusted Gamma UCL (use when n<50) 57.19 Adjusted Level of Significance 0.0431 Adjusted Chi Square Value 55.78 MLE Mean (bias corrected) 42.24 MLE Sd (bias corrected) 41.82 Approximate Chi Square Value (0.05) 56.49
Lognormal GOF Test
Shapiro Wilk Test Statistic 0.974 Shapiro Wilk Lognormal GOF Test DRAFT

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Lognormal Statistics
Minimum of Logged Data 1.292 Mean of logged Data 3.22
5% Lilliefors Critical Value 0.144 Data appear Lognormal at 5% Significance Level Data appear Lognormal at 5% Significance Level
5% Shapiro Wilk Critical Value 0.936 Data appear Lognormal at 5% Significance Level Lilliefors Test Statistic 0.0924 Lilliefors Lognormal GOF Test 95% Chebyshev (MVUE) UCL 76.43 97.5% Chebyshev (MVUE) UCL 91.65 99% Chebyshev (MVUE) UCL 121.6
Assuming Lognormal Distribution
95% H-UCL 63.45 90% Chebyshev (MVUE) UCL 65.46
Maximum of Logged Data 5.394 SD of logged Data 1.02
95% Hall's Bootstrap UCL 70.15 95% Percentile Bootstrap UCL 56.79 95% BCA Bootstrap UCL 62.51
95% CLT UCL 56.12 95% Jackknife UCL 56.49
95% Standard Bootstrap UCL 55.91 95% Bootstrap-t UCL 66.35 Nonparametric Distribution Free UCL Statistics
Data appear to follow a Discernible Distribution at 5% Significance Level Nonparametric Distribution Free UCLs
ProUCL computes and outputs H-statistic based UCLs for historical reasons only.

H-statistic often results in unstable (both high and low) values of UCL95 as shown in examples in the Technical Guide.

It is therefore recommended to avoid the use of H-statistic based 95% UCLs.

Use of nonparametric methods are preferred to compute UCL95 for skewed data sets which do not follow a gamma distribution.

Note: Suggestions regarding the selection of a 95% UCL are provided to help the user to select the most appropriate 95% UCL.

Recommendations are based upon data size, data distribution, and skewness.

These recommendations are based upon the results of the simulation studies summarized in Singh, Maichle, and Lee (2006).

However, simulations results will not cover all Real World data sets; for additional insight the user may want to consult a statistician.

Suggested UCL to Use
95% H-UCL 63.45
90% Chebyshev(Mean, Sd) UCL 67.56 95% Chebyshev(Mean, Sd) UCL 79.03

97.5% Chebyshev(Mean, Sd) UCL 94.94 99% Chebyshev(Mean, Sd) UCL 126.2 Minimum 5.9 Mean 10.9
Maximum 45.1 Median 8.4
Total Number of Observations 23 Number of Distinct Observations 23 Number of Missing Observations 0
lead (2-3 feet)
General Statistics
5% Shapiro Wilk Critical Value 0.914 Data Not Normal at 5% Significance Level Normal GOF Test
Shapiro Wilk Test Statistic 0.506 Shapiro Wilk GOF Test SD 8.064 Std. Error of Mean 1.681
Coefficient of Variation 0.74 Skewness 3.812
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5% Lilliefors Critical Value 0.18 Data Not Normal at 5% Significance Level Data Not Normal at 5% Significance Level
Lilliefors Test Statistic 0.335 Lilliefors GOF Test
Gamma GOF Test
A-D Test Statistic 2.487 Anderson-Darling Gamma GOF Test 5% A-D Critical Value 0.749 Data Not Gamma Distributed at 5% Significance Level 95% Modified-t UCL (Johnson-1978) 14.01
Assuming Normal Distribution
95% Normal UCL 95% UCLs (Adjusted for Skewness)
95% Student's-t UCL 13.79 95% Adjusted-CLT UCL (Chen-1995) 15.1 Theta hat (MLE) 2.637 Theta star (bias corrected MLE) 3.008 nu hat (MLE) 190.2 nu star (bias corrected) 166.8
Data Not Gamma Distributed at 5% Significance Level
Gamma Statistics
k hat (MLE) 4.135 k star (bias corrected MLE) 3.625
K-S Test Statistic 0.261 Kolmogorov-Smirnov Gamma GOF Test 5% K-S Critical Value 0.182 Data Not Gamma Distributed at 5% Significance Level Assuming Gamma Distribution
95% Approximate Gamma UCL (use when n>=50)) 13.19 95% Adjusted Gamma UCL (use when n<50) 13.37 Adjusted Level of Significance 0.0389 Adjusted Chi Square Value 136 MLE Mean (bias corrected) 10.9 MLE Sd (bias corrected) 5.727 Approximate Chi Square Value (0.05) 137.9
Lognormal Statistics
Minimum of Logged Data 1.775 Mean of logged Data 2.263
5% Lilliefors Critical Value 0.18 Data Not Lognormal at 5% Significance Level Data Not Lognormal at 5% Significance Level
5% Shapiro Wilk Critical Value 0.914 Data Not Lognormal at 5% Significance Level Lilliefors Test Statistic 0.213 Lilliefors Lognormal GOF Test Lognormal GOF Test
Shapiro Wilk Test Statistic 0.761 Shapiro Wilk Lognormal GOF Test 95% Chebyshev (MVUE) UCL 14.81 97.5% Chebyshev (MVUE) UCL 16.66 99% Chebyshev (MVUE) UCL 20.3
Assuming Lognormal Distribution
95% H-UCL 12.63 90% Chebyshev (MVUE) UCL 13.47
Maximum of Logged Data 3.809 SD of logged Data 0.435
95% Hall's Bootstrap UCL 23.74 95% Percentile Bootstrap UCL 14.03 95% BCA Bootstrap UCL 15.93
95% CLT UCL 13.67 95% Jackknife UCL 13.79
95% Standard Bootstrap UCL 13.63 95% Bootstrap-t UCL 18.92 Nonparametric Distribution Free UCL Statistics
Data do not follow a Discernible Distribution (0.05)
Nonparametric Distribution Free UCLs
90% Chebyshev(Mean, Sd) UCL 15.95 95% Chebyshev(Mean, Sd) UCL 18.23 DRAFT

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Note: Suggestions regarding the selection of a 95% UCL are provided to help the user to select the most appropriate 95% UCL.

Recommendations are based upon data size, data distribution, and skewness.

These recommendations are based upon the results of the simulation studies summarized in Singh, Maichle, and Lee (2006).

However, simulations results will not cover all Real World data sets; for additional insight the user may want to consult a statistician.

Suggested UCL to Use
95% Student's-t UCL 13.79 or 95% Modified-t UCL 14.01

97.5% Chebyshev(Mean, Sd) UCL 21.4 99% Chebyshev(Mean, Sd) UCL 27.63 Minimum 5.67 Mean 13.35
Maximum 113 Median 8.89
Total Number of Observations 23 Number of Distinct Observations 22 Number of Missing Observations 0
lead (4-5 feet)
General Statistics
5% Lilliefors Critical Value 0.18 Data Not Normal at 5% Significance Level Data Not Normal at 5% Significance Level
5% Shapiro Wilk Critical Value 0.914 Data Not Normal at 5% Significance Level Lilliefors Test Statistic 0.456 Lilliefors GOF Test
Normal GOF Test
Shapiro Wilk Test Statistic 0.303 Shapiro Wilk GOF Test SD 21.88 Std. Error of Mean 4.563
Coefficient of Variation 1.639 Skewness 4.685
Gamma GOF Test
A-D Test Statistic 4.495 Anderson-Darling Gamma GOF Test 5% A-D Critical Value 0.759 Data Not Gamma Distributed at 5% Significance Level 95% Modified-t UCL (Johnson-1978) 21.93
Assuming Normal Distribution
95% Normal UCL 95% UCLs (Adjusted for Skewness)
95% Student's-t UCL 21.19 95% Adjusted-CLT UCL (Chen-1995) 25.62 Theta hat (MLE) 8.216 Theta star (bias corrected MLE) 9.258 nu hat (MLE) 74.75 nu star (bias corrected) 66.33
Data Not Gamma Distributed at 5% Significance Level
Gamma Statistics
k hat (MLE) 1.625 k star (bias corrected MLE) 1.442
K-S Test Statistic 0.402 Kolmogorov-Smirnov Gamma GOF Test 5% K-S Critical Value 0.185 Data Not Gamma Distributed at 5% Significance Level Assuming Gamma Distribution
95% Approximate Gamma UCL (use when n>=50)) 18.23 95% Adjusted Gamma UCL (use when n<50) 18.65 Adjusted Level of Significance 0.0389 Adjusted Chi Square Value 47.49 MLE Mean (bias corrected) 13.35 MLE Sd (bias corrected) 11.12 Approximate Chi Square Value (0.05) 48.59
Lognormal GOF Test
DRAFT

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Lognormal Statistics
Minimum of Logged Data 1.735 Mean of logged Data 2.253
5% Lilliefors Critical Value 0.18 Data Not Lognormal at 5% Significance Level Data Not Lognormal at 5% Significance Level
5% Shapiro Wilk Critical Value 0.914 Data Not Lognormal at 5% Significance Level Lilliefors Test Statistic 0.318 Lilliefors Lognormal GOF Test Shapiro Wilk Test Statistic 0.597 Shapiro Wilk Lognormal GOF Test 95% Chebyshev (MVUE) UCL 17.75 97.5% Chebyshev (MVUE) UCL 20.55 99% Chebyshev (MVUE) UCL 26.05
Assuming Lognormal Distribution
95% H-UCL 14.81 90% Chebyshev (MVUE) UCL 15.73
Maximum of Logged Data 4.727 SD of logged Data 0.598
95% Hall's Bootstrap UCL 61.98 95% Percentile Bootstrap UCL 22.38 95% BCA Bootstrap UCL 27.21
95% CLT UCL 20.86 95% Jackknife UCL 21.19
95% Standard Bootstrap UCL 20.53 95% Bootstrap-t UCL 84.03 Nonparametric Distribution Free UCL Statistics
Data do not follow a Discernible Distribution (0.05)
Nonparametric Distribution Free UCLs
Note: Suggestions regarding the selection of a 95% UCL are provided to help the user to select the most appropriate 95% UCL.

Recommendations are based upon data size, data distribution, and skewness.

These recommendations are based upon the results of the simulation studies summarized in Singh, Maichle, and Lee (2006).

However, simulations results will not cover all Real World data sets; for additional insight the user may want to consult a statistician.

Suggested UCL to Use
95% Chebyshev (Mean, Sd) UCL 33.24
90% Chebyshev(Mean, Sd) UCL 27.04 95% Chebyshev(Mean, Sd) UCL 33.24

97.5% Chebyshev(Mean, Sd) UCL 41.85 99% Chebyshev(Mean, Sd) UCL 58.75 Minimum 3.64 Mean 25.55
Maximum 220 Median 10.2
Total Number of Observations 83 Number of Distinct Observations 77 Number of Missing Observations 0
lead (all depths)
General Statistics
5% Lilliefors Critical Value 0.0974 Data Not Normal at 5% Significance Level Data Not Normal at 5% Significance Level
5% Shapiro Wilk P Value 0 Data Not Normal at 5% Significance Level Lilliefors Test Statistic 0.292 Lilliefors GOF Test
Normal GOF Test
Shapiro Wilk Test Statistic 0.536 Shapiro Wilk GOF Test SD 39.12 Std. Error of Mean 4.294
Coefficient of Variation 1.531 Skewness 3.479
DRAFT

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Gamma GOF Test
A-D Test Statistic 7.4 Anderson-Darling Gamma GOF Test
5% A-D Critical Value 0.781 Data Not Gamma Distributed at 5% Significance Level 95% Modified-t UCL (Johnson-1978) 32.97
Assuming Normal Distribution
95% Normal UCL 95% UCLs (Adjusted for Skewness)
95% Student's-t UCL 32.7 95% Adjusted-CLT UCL (Chen-1995) 34.37 Theta hat (MLE) 24.63 Theta star (bias corrected MLE) 25.35 nu hat (MLE) 172.2 nu star (bias corrected) 167.4
Data Not Gamma Distributed at 5% Significance Level
Gamma Statistics
k hat (MLE) 1.038 k star (bias corrected MLE) 1.008
K-S Test Statistic 0.257 Kolmogorov-Smirnov Gamma GOF Test 5% K-S Critical Value 0.101 Data Not Gamma Distributed at 5% Significance Level Assuming Gamma Distribution
95% Approximate Gamma UCL (use when n>=50)) 30.89 95% Adjusted Gamma UCL (use when n<50) 30.99 Adjusted Level of Significance 0.0471 Adjusted Chi Square Value 138 MLE Mean (bias corrected) 25.55 MLE Sd (bias corrected) 25.45 Approximate Chi Square Value (0.05) 138.4
Lognormal Statistics
Minimum of Logged Data 1.292 Mean of logged Data 2.687
5% Lilliefors Critical Value 0.0974 Data Not Lognormal at 5% Significance Level Data Not Lognormal at 5% Significance Level
5% Shapiro Wilk P Value 5.271E-11 Data Not Lognormal at 5% Significance Level Lilliefors Test Statistic 0.223 Lilliefors Lognormal GOF Test Lognormal GOF Test
Shapiro Wilk Test Statistic 0.858 Shapiro Wilk Lognormal GOF Test 95% Chebyshev (MVUE) UCL 33.42 97.5% Chebyshev (MVUE) UCL 38.3 99% Chebyshev (MVUE) UCL 47.89
Assuming Lognormal Distribution
95% H-UCL 27.71 90% Chebyshev (MVUE) UCL 29.9
Maximum of Logged Data 5.394 SD of logged Data 0.914
95% Hall's Bootstrap UCL 35.96 95% Percentile Bootstrap UCL 33.13 95% BCA Bootstrap UCL 35.9
95% CLT UCL 32.62 95% Jackknife UCL 32.7
95% Standard Bootstrap UCL 32.64 95% Bootstrap-t UCL 35.18 Nonparametric Distribution Free UCL Statistics
Data do not follow a Discernible Distribution (0.05)
Nonparametric Distribution Free UCLs
Suggested UCL to Use
95% Chebyshev (Mean, Sd) UCL 44.27
90% Chebyshev(Mean, Sd) UCL 38.43 95% Chebyshev(Mean, Sd) UCL 44.27

97.5% Chebyshev(Mean, Sd) UCL 52.37 99% Chebyshev(Mean, Sd) UCL 68.28 DRAFT

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ABCDEFGH I J K L
Note: Suggestions regarding the selection of a 95% UCL are provided to help the user to select the most appropriate 95% UCL.

Recommendations are based upon data size, data distribution, and skewness.

These recommendations are based upon the results of the simulation studies summarized in Singh, Maichle, and Lee (2006).

However, simulations results will not cover all Real World data sets; for additional insight the user may want to consult a statistician.

Minimum 3.69 Mean 49.23
Maximum 220 Median 26.4
Total Number of Observations 25 Number of Distinct Observations 25 Number of Missing Observations 0
lead along Lawrence Exp (0-1 feet)
General Statistics
5% Lilliefors Critical Value 0.173 Data Not Normal at 5% Significance Level Data Not Normal at 5% Significance Level
5% Shapiro Wilk Critical Value 0.918 Data Not Normal at 5% Significance Level Lilliefors Test Statistic 0.272 Lilliefors GOF Test
Normal GOF Test
Shapiro Wilk Test Statistic 0.704 Shapiro Wilk GOF Test SD 60.15 Std. Error of Mean 12.03
Coefficient of Variation 1.222 Skewness 2.001
Gamma GOF Test
A-D Test Statistic 0.93 Anderson-Darling Gamma GOF Test 5% A-D Critical Value 0.774 Data Not Gamma Distributed at 5% Significance Level 95% Modified-t UCL (Johnson-1978) 70.62
Assuming Normal Distribution
95% Normal UCL 95% UCLs (Adjusted for Skewness)
95% Student's-t UCL 69.81 95% Adjusted-CLT UCL (Chen-1995) 74.17 Theta hat (MLE) 50.14 Theta star (bias corrected MLE) 55.27 nu hat (MLE) 49.09 nu star (bias corrected) 44.53
Data Not Gamma Distributed at 5% Significance Level
Gamma Statistics
k hat (MLE) 0.982 k star (bias corrected MLE) 0.891
K-S Test Statistic 0.193 Kolmogorov-Smirnov Gamma GOF Test 5% K-S Critical Value 0.18 Data Not Gamma Distributed at 5% Significance Level Assuming Gamma Distribution
95% Approximate Gamma UCL (use when n>=50)) 72.53 95% Adjusted Gamma UCL (use when n<50) 74.51 Adjusted Level of Significance 0.0395 Adjusted Chi Square Value 29.42 MLE Mean (bias corrected) 49.23 MLE Sd (bias corrected) 52.17 Approximate Chi Square Value (0.05) 30.23
5% Lilliefors Critical Value 0.173 Data appear Lognormal at 5% Significance Level 5% Shapiro Wilk Critical Value 0.918 Data appear Lognormal at 5% Significance Level Lilliefors Test Statistic 0.119 Lilliefors Lognormal GOF Test Lognormal GOF Test
Shapiro Wilk Test Statistic 0.959 Shapiro Wilk Lognormal GOF Test DRAFT

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Lognormal Statistics
Minimum of Logged Data 1.306 Mean of logged Data 3.307
Data appear Lognormal at 5% Significance Level
95% Chebyshev (MVUE) UCL 100.8 97.5% Chebyshev (MVUE) UCL 123.7 99% Chebyshev (MVUE) UCL 168.7
Assuming Lognormal Distribution
95% H-UCL 89.2 90% Chebyshev (MVUE) UCL 84.35
Maximum of Logged Data 5.394 SD of logged Data 1.094
95% Hall's Bootstrap UCL 82.59 95% Percentile Bootstrap UCL 68.85 95% BCA Bootstrap UCL 72.17
95% CLT UCL 69.02 95% Jackknife UCL 69.81
95% Standard Bootstrap UCL 68.86 95% Bootstrap-t UCL 81.49 Nonparametric Distribution Free UCL Statistics
Data appear to follow a Discernible Distribution at 5% Significance Level Nonparametric Distribution Free UCLs
ProUCL computes and outputs H-statistic based UCLs for historical reasons only.

H-statistic often results in unstable (both high and low) values of UCL95 as shown in examples in the Technical Guide.

It is therefore recommended to avoid the use of H-statistic based 95% UCLs.

Use of nonparametric methods are preferred to compute UCL95 for skewed data sets which do not follow a gamma distribution.

Note: Suggestions regarding the selection of a 95% UCL are provided to help the user to select the most appropriate 95% UCL.

Recommendations are based upon data size, data distribution, and skewness.

These recommendations are based upon the results of the simulation studies summarized in Singh, Maichle, and Lee (2006).

However, simulations results will not cover all Real World data sets; for additional insight the user may want to consult a statistician.

Suggested UCL to Use
95% H-UCL 89.2
90% Chebyshev(Mean, Sd) UCL 85.32 95% Chebyshev(Mean, Sd) UCL 101.7

97.5% Chebyshev(Mean, Sd) UCL 124.4 99% Chebyshev(Mean, Sd) UCL 168.9 Minimum 6.43 Mean 9.479
Maximum 19 Median 8.26
Total Number of Observations 20 Number of Distinct Observations 20 Number of Missing Observations 0
lead along Lawrence Exp (2-3 feet)
General Statistics
5% Lilliefors Critical Value 0.192 Data Not Normal at 5% Significance Level Data Not Normal at 5% Significance Level
5% Shapiro Wilk Critical Value 0.905 Data Not Normal at 5% Significance Level Lilliefors Test Statistic 0.237 Lilliefors GOF Test
Normal GOF Test
Shapiro Wilk Test Statistic 0.738 Shapiro Wilk GOF Test SD 3.204 Std. Error of Mean 0.717
Coefficient of Variation 0.338 Skewness 2.094
DRAFT

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Gamma GOF Test
A-D Test Statistic 1.372 Anderson-Darling Gamma GOF Test 5% A-D Critical Value 0.742 Data Not Gamma Distributed at 5% Significance Level 95% Modified-t UCL (Johnson-1978) 10.77
Assuming Normal Distribution
95% Normal UCL 95% UCLs (Adjusted for Skewness)
95% Student's-t UCL 10.72 95% Adjusted-CLT UCL (Chen-1995) 11.02 Theta hat (MLE) 0.777 Theta star (bias corrected MLE) 0.912 nu hat (MLE) 487.8 nu star (bias corrected) 416
Data Not Gamma Distributed at 5% Significance Level
Gamma Statistics
k hat (MLE) 12.19 k star (bias corrected MLE) 10.4
K-S Test Statistic 0.206 Kolmogorov-Smirnov Gamma GOF Test 5% K-S Critical Value 0.194 Data Not Gamma Distributed at 5% Significance Level Assuming Gamma Distribution
95% Approximate Gamma UCL (use when n>=50)) 10.67 95% Adjusted Gamma UCL (use when n<50) 10.77 Adjusted Level of Significance 0.038 Adjusted Chi Square Value 366.2 MLE Mean (bias corrected) 9.479 MLE Sd (bias corrected) 2.939 Approximate Chi Square Value (0.05) 369.7
Lognormal Statistics
Minimum of Logged Data 1.861 Mean of logged Data 2.208
5% Lilliefors Critical Value 0.192 Data appear Lognormal at 5% Significance Level Data appear Approximate Lognormal at 5% Significance Level 5% Shapiro Wilk Critical Value 0.905 Data Not Lognormal at 5% Significance Level Lilliefors Test Statistic 0.186 Lilliefors Lognormal GOF Test Lognormal GOF Test
Shapiro Wilk Test Statistic 0.846 Shapiro Wilk Lognormal GOF Test 95% Chebyshev (MVUE) UCL 12.02 97.5% Chebyshev (MVUE) UCL 13.14 99% Chebyshev (MVUE) UCL 15.33
Assuming Lognormal Distribution
95% H-UCL 10.62 90% Chebyshev (MVUE) UCL 11.21
Maximum of Logged Data 2.944 SD of logged Data 0.278
95% Hall's Bootstrap UCL 16.76 95% Percentile Bootstrap UCL 10.62 95% BCA Bootstrap UCL 11.04
95% CLT UCL 10.66 95% Jackknife UCL 10.72
95% Standard Bootstrap UCL 10.62 95% Bootstrap-t UCL 11.89 Nonparametric Distribution Free UCL Statistics
Data appear to follow a Discernible Distribution at 5% Significance Level Nonparametric Distribution Free UCLs
Suggested UCL to Use
90% Chebyshev(Mean, Sd) UCL 11.63 95% Chebyshev(Mean, Sd) UCL 12.6

97.5% Chebyshev(Mean, Sd) UCL 13.95 99% Chebyshev(Mean, Sd) UCL 16.61 DRAFT

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or 95% H-UCL 10.62
95% Student's-t UCL 10.72 or 95% Modified-t UCL 10.77
lead along Lawrence Exp (4-5 feet)
General Statistics
Total Number of Observations 20 Number of Distinct Observations 20 ProUCL computes and outputs H-statistic based UCLs for historical reasons only.

H-statistic often results in unstable (both high and low) values of UCL95 as shown in examples in the Technical Guide.

It is therefore recommended to avoid the use of H-statistic based 95% UCLs.

Use of nonparametric methods are preferred to compute UCL95 for skewed data sets which do not follow a gamma distribution.

Note: Suggestions regarding the selection of a 95% UCL are provided to help the user to select the most appropriate 95% UCL.

Recommendations are based upon data size, data distribution, and skewness.

These recommendations are based upon the results of the simulation studies summarized in Singh, Maichle, and Lee (2006).

However, simulations results will not cover all Real World data sets; for additional insight the user may want to consult a statistician.

Coefficient of Variation 1.66 Skewness 4.369
Maximum 113 Median 9.02
SD 23.44 Std. Error of Mean 5.242
Number of Missing Observations 0
Minimum 5.67 Mean 14.13
Data Not Normal at 5% Significance Level
Assuming Normal Distribution
95% Normal UCL 95% UCLs (Adjusted for Skewness)
Lilliefors Test Statistic 0.453 Lilliefors GOF Test
5% Lilliefors Critical Value 0.192 Data Not Normal at 5% Significance Level Normal GOF Test
Shapiro Wilk Test Statistic 0.325 Shapiro Wilk GOF Test 5% Shapiro Wilk Critical Value 0.905 Data Not Normal at 5% Significance Level 5% A-D Critical Value 0.758 Data Not Gamma Distributed at 5% Significance Level K-S Test Statistic 0.405 Kolmogorov-Smirnov Gamma GOF Test Gamma GOF Test
A-D Test Statistic 3.865 Anderson-Darling Gamma GOF Test 95% Student's-t UCL 23.19 95% Adjusted-CLT UCL (Chen-1995) 28.22 95% Modified-t UCL (Johnson-1978) 24.04
Theta hat (MLE) 9.458 Theta star (bias corrected MLE) 10.84 nu hat (MLE) 59.74 nu star (bias corrected) 52.11
Gamma Statistics
k hat (MLE) 1.493 k star (bias corrected MLE) 1.303
5% K-S Critical Value 0.197 Data Not Gamma Distributed at 5% Significance Level Data Not Gamma Distributed at 5% Significance Level
Assuming Gamma Distribution
Adjusted Level of Significance 0.038 Adjusted Chi Square Value 35.5 MLE Mean (bias corrected) 14.13 MLE Sd (bias corrected) 12.38 Approximate Chi Square Value (0.05) 36.53
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95% Approximate Gamma UCL (use when n>=50)) 20.15 95% Adjusted Gamma UCL (use when n<50) 20.74 Lognormal Statistics
Minimum of Logged Data 1.735 Mean of logged Data 2.277
5% Lilliefors Critical Value 0.192 Data Not Lognormal at 5% Significance Level Data Not Lognormal at 5% Significance Level
5% Shapiro Wilk Critical Value 0.905 Data Not Lognormal at 5% Significance Level Lilliefors Test Statistic 0.325 Lilliefors Lognormal GOF Test Lognormal GOF Test
Shapiro Wilk Test Statistic 0.617 Shapiro Wilk Lognormal GOF Test 95% Chebyshev (MVUE) UCL 19.57 97.5% Chebyshev (MVUE) UCL 22.92 99% Chebyshev (MVUE) UCL 29.52
Assuming Lognormal Distribution
95% H-UCL 16.4 90% Chebyshev (MVUE) UCL 17.15
Maximum of Logged Data 4.727 SD of logged Data 0.638
95% Hall's Bootstrap UCL 72.02 95% Percentile Bootstrap UCL 24.49 95% BCA Bootstrap UCL 30.31
95% CLT UCL 22.75 95% Jackknife UCL 23.19
95% Standard Bootstrap UCL 22.72 95% Bootstrap-t UCL 96.28 Nonparametric Distribution Free UCL Statistics
Data do not follow a Discernible Distribution (0.05)
Nonparametric Distribution Free UCLs
Note: Suggestions regarding the selection of a 95% UCL are provided to help the user to select the most appropriate 95% UCL.

Recommendations are based upon data size, data distribution, and skewness.

These recommendations are based upon the results of the simulation studies summarized in Singh, Maichle, and Lee (2006).

However, simulations results will not cover all Real World data sets; for additional insight the user may want to consult a statistician.

Suggested UCL to Use
95% Chebyshev (Mean, Sd) UCL 36.97
90% Chebyshev(Mean, Sd) UCL 29.85 95% Chebyshev(Mean, Sd) UCL 36.97

97.5% Chebyshev(Mean, Sd) UCL 46.86 99% Chebyshev(Mean, Sd) UCL 66.28 Minimum 3.69 Mean 26.2
Maximum 220 Median 9.88
Total Number of Observations 65 Number of Distinct Observations 63 Number of Missing Observations 0
lead along Lawrence Exp (all depths)
General Statistics
5% Shapiro Wilk P Value 0 Data Not Normal at 5% Significance Level Lilliefors Test Statistic 0.323 Lilliefors GOF Test
Normal GOF Test
Shapiro Wilk Test Statistic 0.506 Shapiro Wilk GOF Test SD 43.16 Std. Error of Mean 5.354
Coefficient of Variation 1.648 Skewness 3.282
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5% Lilliefors Critical Value 0.11 Data Not Normal at 5% Significance Level Data Not Normal at 5% Significance Level
Gamma GOF Test
A-D Test Statistic 7.876 Anderson-Darling Gamma GOF Test 5% A-D Critical Value 0.782 Data Not Gamma Distributed at 5% Significance Level 95% Modified-t UCL (Johnson-1978) 35.5
Assuming Normal Distribution
95% Normal UCL 95% UCLs (Adjusted for Skewness)
95% Student's-t UCL 35.13 95% Adjusted-CLT UCL (Chen-1995) 37.33 Theta hat (MLE) 27.67 Theta star (bias corrected MLE) 28.69 nu hat (MLE) 123.1 nu star (bias corrected) 118.7
Data Not Gamma Distributed at 5% Significance Level
Gamma Statistics
k hat (MLE) 0.947 k star (bias corrected MLE) 0.913
K-S Test Statistic 0.293 Kolmogorov-Smirnov Gamma GOF Test 5% K-S Critical Value 0.114 Data Not Gamma Distributed at 5% Significance Level Assuming Gamma Distribution
95% Approximate Gamma UCL (use when n>=50)) 32.89 95% Adjusted Gamma UCL (use when n<50) 33.06 Adjusted Level of Significance 0.0463 Adjusted Chi Square Value 94.08 MLE Mean (bias corrected) 26.2 MLE Sd (bias corrected) 27.41 Approximate Chi Square Value (0.05) 94.57
Lognormal Statistics
Minimum of Logged Data 1.306 Mean of logged Data 2.652
5% Lilliefors Critical Value 0.11 Data Not Lognormal at 5% Significance Level Data Not Lognormal at 5% Significance Level
5% Shapiro Wilk P Value 1.313E-11 Data Not Lognormal at 5% Significance Level Lilliefors Test Statistic 0.25 Lilliefors Lognormal GOF Test Lognormal GOF Test
Shapiro Wilk Test Statistic 0.803 Shapiro Wilk Lognormal GOF Test 95% Chebyshev (MVUE) UCL 34.37 97.5% Chebyshev (MVUE) UCL 39.86 99% Chebyshev (MVUE) UCL 50.65
Assuming Lognormal Distribution
95% H-UCL 28.28 90% Chebyshev (MVUE) UCL 30.41
Maximum of Logged Data 5.394 SD of logged Data 0.931
95% Hall's Bootstrap UCL 38.5 95% Percentile Bootstrap UCL 35.47 95% BCA Bootstrap UCL 37.39
95% CLT UCL 35 95% Jackknife UCL 35.13
95% Standard Bootstrap UCL 34.96 95% Bootstrap-t UCL 39.6 Nonparametric Distribution Free UCL Statistics
Data do not follow a Discernible Distribution (0.05)
Nonparametric Distribution Free UCLs
90% Chebyshev(Mean, Sd) UCL 42.26 95% Chebyshev(Mean, Sd) UCL 49.54

97.5% Chebyshev(Mean, Sd) UCL 59.63 99% Chebyshev(Mean, Sd) UCL 79.47 DRAFT

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Note: Suggestions regarding the selection of a 95% UCL are provided to help the user to select the most appropriate 95% UCL.

Recommendations are based upon data size, data distribution, and skewness.

These recommendations are based upon the results of the simulation studies summarized in Singh, Maichle, and Lee (2006).

However, simulations results will not cover all Real World data sets; for additional insight the user may want to consult a statistician.

Suggested UCL to Use
95% Chebyshev (Mean, Sd) UCL 49.54
DRAFT

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APPENDIX D: TRANSPORTATION MEMO
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Memorandum
Date: February 24, 2022
To: Jan Eiesland, MIG
From: Michelle Hunt and Rueben Rodriguez
Subject: Vehicle Miles Traveled, Multimodal Access, and Pedestrian Safety at Lawrence Mitty Park and Trail in Cupertino, California
Hexagon Transportation Consultants, Inc. has completed an initial assessment of Vehicle Miles Traveled (VMT), multimodal access, and pedestrian safety at Lawrence Mitty Park and Trail in Cupertino, California. The project site is located on the east side of Cupertino between the Lawrence Expressway and Saratoga Creek. A Master Plan is being developed for the site to plan for the recreation, trail, and open space needs of residents. The Plan will provide a park with recreation activities, facilities for outdoor play and exercise, educational opportunities, and open space. The Master Plan will also extend the existing Saratoga Creek walking and biking trail.

In accordance with Senate Bill (SB) 743 and the City’s Ordinance No. 21-2223, vehicle miles traveled (VMT) has replaced level of service (LOS) for use in transportation analyses pursuant to the California Environmental Quality Act (CEQA). This memorandum evaluates the project’s potential impact on vehicle miles traveled (VMT) and analyzes multimodal access and pedestrian safety. Although LOS is no longer the transportation analysis tool used in assessing the environmental impact of projects, the Cupertino General Plan contains LOS standards with which projects must comply. However, because this project would generate few additional vehicle trips, it is expected to have a negligible effect on intersection operations. Accordingly, City of Cupertino staff have determined that an analysis of intersection levels of service is unnecessary for this project.

Vehicle Miles Traveled
The City adopted a new VMT policy on March 2, 2021 based on the Senate Bill (SB) 743.

According to the City Ordinance, some projects may be screened out, or assumed to have a lessthan-significant impact on VMT if they fall within the following categories:

1. Local serving retail of up to 50,000 square feet.

2. 100% affordable housing projects.

3. Projects located within 1/4 mile of Stevens Creek Blvd (from SR 85 east), measured in walking distance.

4. Small projects that generate less than 110 new trips per day, and do not exceed square footage thresholds.

The potential new daily vehicle trips that may be generated by the proposed project were estimated by applying trip rates for public parks published in the Institute of Transportation Engineers (ITE) Trip Generation Manual, 11th Edition (0.78 daily vehicle trips per acre) to the size of the project site (7.83 acres). Based on the ITE trip rate, the proposed project is expected to generate fewer than 10 Q ...., • ~DAGON l~ANSPO~TATION (ONSULTANTS. INC.
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VMT, Multimodal Access, and Pedestrian Safety at Lawrence Mitty Park/Trail February 24, 2022 P a g e | 2
daily vehicle trips each day. This is considered a conservative (high) estimate of project-generated traffic because a portion of the site has limited improvement potential due to Saratoga Creek and other areas will provide for open space with only passive recreational uses rather than more intense, active park uses like sports fields. Furthermore, project vehicle trips are expected to be quite low because there is no direct public vehicle access to the project site (see discussion of multimodal access below).

Therefore, according to the Cupertino VMT policy, the project would qualify as a small project that may be screened out of a detailed VMT analysis and assumed to have a less than significant impact on VMT.

Furthermore, the Lawrence-Mitty site is located within the east side of Cupertino, which is underserved in terms of park space and recreational opportunities for residents. Thus, it is likely that many residents in this area of Cupertino area travel to parks, trails, and open spaces outside the area. For this reason, the project is expected to result in a reduction in the total (boundary) VMT.

Existing Multimodal Access and Pedestrian Safety
The Saratoga Creek Trail is a multi-use path that runs along the west side of Lawrence Expressway and extends from English Drive in the south to Mitty Way in the north. Currently, the trail ends at a gate approximately 40 feet north of the Lawrence Expressway and Mitty Way crosswalk.

The existing pedestrian and bicycle facilities are generally located south of the proposed project site. There are existing pedestrian facilities at the signalized intersections of Lawrence Expressway and Mitty Way and Lawrence Expressway and Moorpark Avenue/Bollinger Road. The intersection of Lawrence Expressway and Mitty Way includes a crosswalk along the south leg with push buttons, curb ramps with truncated domes, and pedestrian signal heads. The intersection of Lawrence Expressway and Moorpark Avenue/Bollinger Road includes crosswalks along each leg with push buttons, curb ramps with truncated domes, and pedestrian signal heads per the requirements set forth in the Americans with Disabilities Act (ADA). The existing pedestrian facilities at these two intersections provide access between the Saratoga Creek Trail and the sidewalks along the adjacent roadways. North of the project site, pedestrian facilities at the signalized intersection of Lawrence Expressway and Southbound I-280 On-Ramp/Calvert Drive are limited to a crosswalk on the east leg. A sidewalk extends south along the east side of Lawrence Expressway to Doyle Road, which provides an indirect connection via local neighborhood streets between the Lawrence/Southbound I-280/Calvert intersection and the Saratoga Creek Trail. While there are short segments of sidewalk along Lawrence Expressway at intersections near the project site, there ae no pedestrian facilities along the east and west sides of Lawrence Expressway that would enable residents to walk from intersection to intersection.

In the project vicinity, bicycles are permitted to ride on Lawrence Expressway. Bicycle detector pavement markings are provided on the roadway shoulders at the approaches to signalized intersections on Lawrence Expressway. Due to the high speed and volume of traffic on the expressway, bicyclists are advised to exercise caution.

The Sterling Barnhart Park is located at the southwest corner of the Lawrence Expressway and Mitty Way intersection. Pedestrian and bicycle access between the Saratoga Creek Trail and the adjacent Rancho Rinconada neighborhood is available through the park. The unsignalized intersection of Sterling Boulevard and Barnhart Avenue, located on the residential (west) side of the Sterling Barnhart Park and Saratoga Creek Trail includes a marked crosswalk on the north leg. This 1161
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crosswalk includes curb ramps with truncated domes in conformance to the ADA. The crosswalk also has pedestrian crossing warning signs (signs W11-2 and W16-7P in the California MUTCD) and an overhead light to ensure visibility of pedestrians at night.

The project site has an existing driveway along Lawrence Expressway that is used by City maintenance vehicles. The existing driveway is located approximately 620 feet south of the Lawrence Expressway and Southbound I-280 On-Ramp/Calvert Drive intersection. The existing driveway provides sufficient storage for two vehicles to park side-by-side, without encroaching on the adjacent southbound shoulder area of Lawrence Expressway.

There is no on-site public parking and no direct vehicular access to the project site or Saratoga Creek Trail for the general public. To access the site by vehicle, visitors need to park on the adjacent residential streets near Sterling Barnhart Park and walk through the park to the multi-use path. Alternatively, park and trail visitors may park in the residential neighborhood east of Lawrence Expressway and then use the crosswalk on the south leg of the Lawrence/Mitty intersection.

Design Considerations and Recommendations
The project should connect to the existing pedestrian and bicycle facilities near the project site. The project site will serve as the northern most point of the Saratoga Creek Trail. The existing Saratoga Creek Trail ends near the southern edge of the site. It is recommended that the project tie-in to the existing trail to provide bicycle and pedestrian connectivity to the Lawrence Expressway and Mitty Way intersection and to Sterling Barnhart Park. The signalized crosswalk at the intersection of Lawrence Expressway and Mitty Way is adequate and there are no recommended changes to the existing pedestrian facilities at this intersection. Crosswalk visibility enhancements should be considered at the uncontrolled crosswalk at the intersection of Sterling Boulevard and Barnhart Avenue per the FHWA’s Guide for Improving Pedestrian Safety at Uncontrolled Crossing Locations.

Enhancements to improve crosswalk visibility may include high visibility crosswalk striping and parking restrictions on the crosswalk approaches so there is adequate sight distance for motorists on the approaches to the crossings and ample sight distance for pedestrians attempting to cross.

Alternatively, a bulb-out could be constructed to allow the pedestrian to see past the parked vehicle along the street.

There is no trail connection north of the project site. However, adjacent to the project site, bicycles are permitted on Lawrence Expressway. The project should consider providing inbound access for southbound Lawrence Expressway bikes near the north end of the project site. Note that the on-site design, signage, and pavement markings of this inbound bicycle access point should discourage and/or prevent wrong way bike use and pedestrian use. Multimodal improvements that would connect to the north end of the project, such as adding a Class II bike lane designation on southbound Lawrence Expressway and/or adding a crosswalk on the south leg of the Lawrence/Calvert/I-280 southbound on-ramp intersection that would connect to the Class I mixeduse trail on the east side of Lawrence Expressway should be considered.

The project site should continue to provide a city maintenance driveway adjacent to Lawrence Expressway. The driveway should be located at least 500 feet south of the Lawrence Expressway and Southbound I-280 On-Ramp/Calvert Drive intersection, which would be a sufficient distance to satisfy the California Department of Transportation (Caltrans) Highway Design Manual (HDM) stopping sight distance for a design speed of 55 miles per hour (mph). Note that Lawrence Expressway currently has a posted speed of 50 mph. The project driveway should provide sufficient space for a pick-up truck with a small trailer (i.e., a trailer that holds maintenance equipment such as a lawnmower) to park outside the gate without encroaching on the Lawrence Expressway 1162
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VMT, Multimodal Access, and Pedestrian Safety at Lawrence Mitty Park/Trail February 24, 2022 P a g e | 4
roadway and should be designed per the County’s standards for driveways on County expressways. Furthermore, the site plan should allow vehicles to turn around within the driveway or within the project site to avoid the need for vehicles to back out onto Lawrence Expressway. 1163
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Attachment C-1: Informational Memo
Attachment C-2: Mitigation Monitoring and Reporting Program Attachment C-3: County Notice of Intent Filing FINAL MEMO AND RESPONSE TO COMMENTS

ATTACHMENT D
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PUBLIC WORKS DEPARTMENT
Chad Mosley, Director

CITY HALL
10300 TORRE AVENUE ~ CUPERTINO, CA 95014-3266
(408) 777-3354 ~ FAX (408) 777-3333
Mitigated Negative Declaration
As provided by the Environmental Assessment Procedure adopted by the City Council of the City of Cupertino on May 27, 1973, and amended on March 4, 1974, January 17, 1977, May 1, 1978, and July 7, 1980, the City of Cupertino City Council has reviewed the proposed project described below to determine whether it could have a significant effect on the environment as a result of project implementation. “Significant effect on the environment” means a substantial, or potentially substantial, adverse change in any of the physical conditions within the area affect by the project including land, air, water, minerals, flora, fauna, ambient noise, and objects of historic or aesthetic significance (CEQA Guidelines Section 15382).

Project: Lawrence-Mitty Park and Trail Project
Lead Agency/ Project Proponent: City of Cupertino
Availability of Documents: The Initial Study for this Mitigated Negative Declaration is available for review at:

Cupertino City Hall
10300 Torre Avenue
Cupertino, CA 95014
Contact: Susan Michael, CIP Manager
City of Cupertino Public Works Department
10300 Torre Avenue
Cupertino, CA 95014
Phone: (408) 777-3354 (Public Works)
[email protected]

PROJECT DESCRIPTION
The project consists of the development of a new public park and extension of the existing Saratoga Creek Trail on an approximately 7.8-acre site, located along the west side of Lawrence Expressway, south of Interstate 280 and adjacent to Saratoga Creek in the City of Cupertino.

PROPOSED FINDINGS
The City of Cupertino has reviewed the attached Initial Study and determined that the Initial Study identifies potentially significant project effects, but:
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1. Revisions to the project plans incorporated herein as mitigation would avoid or mitigate the effects to a point where no significant effects would occur; and

2. There is no substantial evidence, in light of the whole record before the agency, that the project may have a significant effect on the environment. Pursuant to California Environmental Quality Act (CEQA) Guidelines Sections 15064(f)(3) and 15070(b), a Mitigated Negative Declaration has been prepared for consideration as the appropriate CEQA document for the project.

BASIS OF FINDINGS
Based on the environmental evaluation presented in the attached Initial Study, the project would not cause significant adverse effects related to aesthetics, agricultural and forestry resources, air quality, energy, geology/soils, greenhouse gas emissions, hazards/hazardous materials, land use/planning, mineral resources, noise, population/housing, public services, recreation, transportation, utilities/service systems, and wildfire. The project does not have impacts that are individually limited, but cumulatively considerable.

The environmental evaluation has determined that the project would have potentially significant impacts on biological, cultural and tribal cultural resources as described below.

Mitigation Measures
The project could result in significant adverse effects to biological resources, cultural resources, and tribal cultural resources. However, the project has been revised to include the mitigation measures listed below, which reduce these impacts to a less-than-significant level. With implementation of these mitigation measures, the project would not substantially degrade the quality of the environment, reduce the habitat of a fish or wildlife species, cause a fish or wildlife population to drop below self-sustaining levels, threaten to eliminate a plant or animal community, or substantially reduce the number or restrict the range of a rare or endangered plant or animal.

Nor would the project cause substantial adverse effects on humans, either directly or indirectly.

Mitigation Measures Incorporated into the Project:

Mitigation Measure BIO-1a. Conduct Preconstruction Survey. No more than 24 hours prior to the date of initial ground disturbance, a pre-construction survey for southwestern pond turtle will be conducted within the impact area by a qualified biologist. The survey will consist of walking the limits of impact to ascertain the possible presence of the species. The qualified biologist will investigate all potential areas that could be used by southwestern pond turtle for feeding, sheltering, movement, and other essential behaviors.

A qualified biologist is an individual who shall have a degree in biological sciences or related resource management with a minimum of two seasonal years post-degree experience conducting surveys for each amphibian and reptile special-status species that may be present within the project areas. During or following academic training, the qualified biologist shall have achieved a high level of professional experience and knowledge in biological sciences and special-status species identification, ecology, and 1166
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habitat requirements. Additionally, the qualified biologist must be permitted or authorized to handle and relocate southwestern pond turtle.

Mitigation Measure BIO-1b. Worker Environmental Awareness Program. All construction personnel will participate in a worker environmental awareness program.

These personnel will be informed about the possible presence of all special-status species and habitats associated with the species identified here to be potentially present in the parcel and that unlawful take of the animal or destruction of its habitat is a violation of law. Prior to construction activities, a qualified biologist will instruct all construction personnel about (1) the description and status of the species; (2) the importance of their associated habitats; (3) a list of measures being taken to reduce impacts on these species during project construction and implementation; and (4) measures to be followed if special-status species are encountered during construction activities. A fact sheet conveying this information will be prepared for distribution to the construction crew and anyone else who enters the project site.

Mitigation Measure BIO-1c. Install Wildlife Exclusion Barrier. Prior to any ground disturbance in the work area, a temporary wildlife exclusion barrier will be installed along the limits of disturbance. A qualified biologist will inspect the area prior to installation of the barrier. The barrier will be designed to allow the southwestern pond turtles to leave the work area and prevent them from entering the work area. The fence will remain in place until all development activities have been completed. This barrier will be inspected daily and maintained and repaired as necessary to ensure that it is functional and is not a hazard to southwestern pond turtles on the outer side of the barrier.

Mitigation Measure BIO-1d. Construction Monitoring. A qualified biologist or biological monitor will be onsite during all project activities that may result in the take of any specialstatus species. The qualified biologist will be given the authority to freely communicate verbally, by telephone, by electronic mail, or in writing at any time with construction personnel, any other person(s) at the project site or otherwise associated with the project, and regulatory agencies (e.g., USFWS or CDFW). The qualified biologist or biological monitor will have oversight over implementation of all the mitigation measures and will have the authority and responsibility to stop project activities if they determine any of the measures are not being fulfilled.

A biological monitor is an individual who shall have academic and professional experience in biological sciences and related resource management activities as it pertains to this project, experience with construction-level biological monitoring, be able to recognize species that may be present within the project area and be familiar with the habits and behavior of those species.

Mitigation Measure BIO-2a: Pre-Construction Survey for San Francisco Dusky- Footed Woodrats. Within 30 days prior to the start of construction activities, a qualified biologist shall map all San Francisco dusky-footed woodrat houses within a 50-foot buffer around the project footprint. Environmentally sensitive habitat fencing shall be placed to protect the houses with a minimum 50-foot buffer. If a 50-foot buffer is not feasible, a smaller buffer may be allowable based on advice from a qualified biologist 1167
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with knowledge of woodrat ecology and behavior, or Mitigation Measure BIO-2b may be implemented.

Mitigation Measure BIO-2b: Relocation of Woodrat Houses. In the unlikely event that one or more woodrat houses are determined to be present and physical disturbance or destruction of the houses cannot be avoided, then the woodrats shall be evicted from their houses and the nest material relocated outside of the disturbance area, prior to onset of activities that would disturb the house, to avoid injury or mortality of the woodrats. The reproductive season for San Francisco dusky-footed woodrats typically starts in February or March and breeding activity usually continues to July but can extend into September. Thus, relocation efforts should be completed in the fall to minimize the potential for impacts on young woodrats in the house. Additionally, it is recommended that the period between the completion of the relocation efforts and the start of construction activities be minimized to reduce the potential for woodrats to reconstruct houses in the project footprint prior to the start of construction activities.

Relocation generally involves first choosing an alternate location for the house material based on the following criteria: 1) proximity to current nest location; 2) safe buffer distance from planned work; 3) availability of food resources; and 4) availability of cover. An alternate house structure will then be built at the chosen location. Subsequently, during the evening hours (i.e., within 1 hour prior to sunset), a qualified biologist will slowly dismantle the existing woodrat house to allow any woodrats to flee and seek cover. All sticks from the nest will be collected and spread over the alternate structure. However, alternative relocation measures can be employed as advised by a qualified wildlife biologist in consultation with CDFW.

Mitigation Measure BIO-3a: Pre-Construction Survey for Roosting Bats. A survey of culverts within the project site, including a 50-foot buffer (as feasible) shall be conducted by a qualified bat biologist no less than 30 days before the start of construction-related activities (including but not limited to mobilization and staging, clearing, grubbing, tree removal, vegetation removal, fence installation, demolition, and grading). If construction activities are delayed by more than 30 days, an additional bat survey shall be performed.

The survey may be conducted at any time of year but should be conducted in such a way to allow sufficient time to determine if special-status bats or maternity colonies are present on the site. The results of the survey shall be documented.

If no habitat or signs of bats are detected during the habitat suitability survey, no further surveys are warranted. If suitable habitat is present and signs of bat occupancy (e.g., guano pellets or urine staining) are detected, Mitigation Measure BIO-3b shall apply.

Mitigation Measure BIO-3b: Acoustic Survey. If suitable habitat is present and signs of bat occupancy are detected, a follow-up dusk emergence survey shall be conducted no less than 30 days prior to construction activities. A dusk survey will determine the number of bats present and will also include the use of acoustic equipment to determine the species of bats present. The results of the survey shall be documented. If an active roost is observed within the project site, Mitigation Measure BIO-3c shall apply. 1168
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Mitigation Measure BIO-3c: Roost Buffer. If a day roost or a maternity colony is detected and is found sufficiently close to work areas to be disturbed by construction activities, the qualified biologist shall determine the extent of a construction-free buffer zone to be established around the roost in consultation with CDFW. Within the buffer zone, no site disturbance and mobilization of heavy equipment, including but not limited to equipment staging, fence installation, clearing, grubbing, vegetation removal, demolition, and grading shall be permitted. Monitoring shall be required to ensure compliance with relevant California Fish and Game Code requirements. Monitoring dates and findings shall be documented.

Mitigation Measure BIO-4: Pre-Construction/Pre-Disturbance Survey for Nesting Birds.

Avoidance. To the extent feasible, construction activities should be scheduled to avoid the nesting season. If construction activities are scheduled to take place outside the nesting season, all impacts to nesting birds protected under the MBTA and California Fish and Game Code would be avoided. The nesting season for most birds in Santa Clara County extends from February 1 through August 31.

Pre-Construction Surveys. If it is not possible to schedule construction activities between September 1 and January 31, then preconstruction surveys for nesting birds shall be conducted by a qualified biologist to ensure that no nests would be disturbed during project implementation. These surveys shall be conducted no more than five days prior to the initiation of any site disturbance activities and equipment mobilization, including tree, shrub, or vegetation removal, fence installation, grading, etc. If project activities are delayed by more than five days, an additional nesting bird survey shall be performed.

During this survey, the biologist will inspect all trees and other potential nesting habitats (e.g., trees, shrubs, culverts) in and immediately adjacent to the impact area for nests.

Active nesting is present if a bird is building a nest, sitting in a nest, a nest has eggs or chicks in it, or adults are observed carrying food to the nest. The results of the surveys shall be documented.

If an active nest is found sufficiently close to work areas to be disturbed by these activities, the biologist will determine the extent of a construction-free buffer zone to be established around the nest (typically up to 1,000 feet for raptors and up to 250 feet for other species), to ensure that no nests of species protected by the Migratory Bird Treaty Act MBTA and California Fish and Game Code will be disturbed during project implementation. Within the buffer zone, no site disturbance and mobilization of heavy equipment, including but not limited to equipment staging, fence installation, clearing, grubbing, vegetation removal, demolition, and grading will be permitted until the chicks have fledged. Monitoring shall be required to ensure compliance with MBTA and relevant California Fish and Game Code requirements. Monitoring dates and findings shall be documented.

Mitigation Measure CUL-1: The City of Cupertino (City) shall note on any plans that require ground disturbing excavation that there is a potential for exposing buried cultural resources including prehistoric Native American burials. Significant prehistoric cultural resources are defined as human burials, features or other clusterings of finds made, modified or used by Native American peoples in the past. The prehistoric and protohistoric 1169
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indicators of prior cultural occupation by Native Americans include artifacts and human bone, as well as soil discoloration, shell, animal bone, sandstone cobbles, ashy areas, and baked or vitrified clays. Prehistoric materials may include:
a. Human bone - either isolated or intact burials.
b. Habitation (occupation or ceremonial structures as interpreted from rock rings/features, distinct ground depressions, differences in compaction (e.g., house floors).
c. Artifacts including chipped stone objects such as projectile points and bifaces; groundstone artifacts such as manos, metates, mortars, pestles, grinding stones, pitted hammerstones; and, shell and bone artifacts including ornaments and beads.
d. Various features and samples including hearths (fire-cracked rock; baked and vitrified clay), artifact caches, faunal and shellfish remains (which permit dietary reconstruction), distinctive changes in soil stratigraphy indicative of prehistoric activities.
e. Isolated artifacts.

Mitigation Measure CUL-2: It is recommended that prior to the start of ground disturbing construction, the City should implement a Worker Awareness Training (WAT) program for cultural resources. Training shall be required for all construction personnel participating in ground disturbing construction to alert them to the archaeological sensitivity of the project area and provide protocols to follow in the event of a discovery of archaeological materials.

The training shall be provided by a Registered Professional Archaeologist (RPA).

The RPA shall develop and distribute for job site posting an "ALERT SHEET" summarizing potential archaeological finds that could be exposed and the protocols to be followed as well as points of contact to alert in the event of a discovery.

Mitigation Measure CUL-3: The City shall retain a Professional Archaeologist on an “oncall” basis during ground disturbing construction to review, identify and evaluate any potential cultural resources that may be inadvertently exposed during construction. The archaeologist shall review and evaluate any discoveries to determine if they are historical resource(s) and/or unique archaeological resources under the California Environmental Quality Act (CEQA).

If the Professional Archaeologist determines that any cultural resources exposed during construction constitute a historical resource and/or unique archaeological resource under CEQA, he/she shall notify the City and other appropriate parties of the evaluation and recommend mitigation measures to mitigate to a less-than significant impact in accordance with California Public Resources Code Section 15064.5. Mitigation measures may include avoidance, preservation in-place, recordation, additional archaeological testing and data recovery among other options. The completion of a formal Archaeological Monitoring Plan (AMP) and/or Archaeological Treatment Plan (ATP) that may include data 1170
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recovery may be recommended by the Professional Archaeologist if significant archaeological deposits are exposed during ground disturbing construction. Development and implementation of the AMP and ATP and treatment of significant cultural resources will be determined by the City in consultation with any regulatory agencies.

Mitigation Measure CUL-4: In accordance with Section 7050.5 of the California Health and Safety Code, if potential human remains are found, immediately notify the lead agency (City of Cupertino or Santa Clara County) staff and the Santa Clara County Coroner of the discovery. The coroner would provide a determination regarding the nature of the remains within 48 hours of notification. No further excavation or disturbance of the identified material, or any area reasonably suspected to overlie additional remains, can occur until a determination has been made. If the County Coroner determines that the remains are, or are believed to be, of Native American ancestry, the coroner would notify the Native American Heritage Commission within 24 hours. In accordance with California Public Resources Code, Section 5097.98, the Native American Heritage Commission must immediately notify those persons it believes to be the Most Likely Descendant from the deceased Native American. Within 48 hours of this notification, the Most Likely Descendant would recommend to the lead agency their preferred treatment of the remains and associated grave goods.

Mitigation Measure TRIB-1: It is possible for a lead agency to determine that an artifact is considered significant to a local tribe, and thus considered a significant resource under CEQA, even if it would not otherwise be considered significant under CEQA. As such, all Native American tribal finds are to be considered significant until the lead agency has enough evidence to make a determination of significance. In the event that Native American archaeological resources are discovered, or suspected to have been discovered, Native American monitoring will be required before further ground disturbance shall be allowed.

Conditions of Approval
Standard Permit Condition: The following measures shall be applied to development of the project site to reduce and/or avoid impacts to paleontological resources:
• If vertebrate fossils or other paleontological resources are discovered during construction, all work on the site shall stop immediately until a qualified professional paleontologist can assess the nature and importance of the find and recommend appropriate treatment. Treatment may include preparation and recovery of fossil materials so that they can be housed in an appropriate museum or university collection, and may also include preparation of a report for publication describing the finds. The City of Cupertino’s Project Manager or other suitable representative shall be responsible for submitting the paleontologist’s report to the Director of Public Works, and implementing the recommendations of the qualified professional paleontologist. The representative shall submit a report to the Director of Public Works indicating how the paleontologist’s recommendations were complied with as soon as all measures have been incorporated into the project. 1171
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PUBLIC REVIEW PERIOD
The 30-day public circulation period for the Initial Study and draft MND began on February 12, 2024 and ended on March 13, 2024.

Chad Mosley
Director of Public Works

CERTIFICATE OF THE CITY CLERK
This is to certify that the above Mitigated Negative Declaration was filed in the Office of the City Clerk of the City of Cupertino on °6103 , 2024.

Kirsten Squarcia
City Clerk
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to Susan Michael, Capital Improvements Program Manager
from Mike Campbell, Director of Environmental Analysis
re Final IS/MND Memo and Response to Comments - Lawrence-Mitty Park and Trail Project
date May 21, 2024
This memo was prepared as an informational document for the City of Cupertino for the Lawrence-Mitty Park and Trail Project. The purpose of this Final Initial Study/Mitigated Negative Declaration (IS/MND) memo is to summarize the public review process for the project. This Final IS/MND Memo and Attachments, together with the Draft IS/MND (February 2024), comprise the CEQA environmental review for the project.

Section 15074(b) of the CEQA Guidelines states, “Prior to approving a project, the decision-making body of the lead agency shall consider the proposed mitigated negative declaration together with any comments received during the public review process. The decision-making body shall adopt the proposed mitigated negative declaration only if it finds on the basis of the whole record before it (including the Initial Study and any comments received), that there is no substantial evidence that the project will have a significant effect on the environment and that the mitigated negative declaration reflects the lead agency’s independent judgment and analysis.”
The project includes mitigation to reduce potentially significant impacts to less than significant levels. The Mitigation Monitoring and Reporting Program (MMRP) (Attachment A) presents these mitigation measures, identifies the timing and responsible entity for implementation of the measures, and a sign-off for completion.

The 30-day public review period for the draft IS/MND began on February 12, 2024 and closed on March 13, 2024. The Notice of Intent (NOI) was filed at the Santa Clara County Clerk’s office (Attachment B) and published in the San Jose Mercury News on February 12, 2024. The document was also submitted for State Agency review with the State Clearinghouse (SCH# 2024020394). The NOI was also ATTACHMENT C-1
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MIG, Inc. 2
mailed to owners and occupants of properties within 300 feet of the project site and posted on the City’s website at www.Cupertino.gov/lawrencemitty. The document was made available for review at City Hall, 10300 Torre Avenue, Cupertino.

One comment letter was received from a state agency, one letter was received from a local agencies and two comment letters were received from the public during the comment period. These letters are included on the following pages, with responses to the comments following on the subsequent pages.

COMMENT LETTERS RECEIVED
Comment Letter 1: California Department of Transportation (Caltrans) Comment Letter 2: Valley Water
Comment Letter 3: Archbishop Mitty High School
Comment Letter 4: Russ Danielson
Comment Letter 5: Kitty Moore (Cupertino City Council)
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“Provide a safe and reliable transportation network that serves all people and respects the environment” DISTRICT 4

OFFICE OF REGIONAL AND COMMUNITY PLANNING
P.O. BOX 23660, MS–10D | OAKLAND, CA 94623-0660
www.dot.ca.gov
March 12, 2024 SCH #:2024020394
GTS #:04-SCL-2024-01262
GTS ID: 31995
Co/Rt/Pm: SCL/280/7.049
Susan Michael, Capital Improvement Programs Manager
City of Cupertino
10300 Torre Avenue
Cupertino, CA 95014
Re: Lawrence-Mitty Park and Trail Project─ Mitigated Negative Declaration (MND) Dear Susan Michael:

Thank you for including the California Department of Transportation (Caltrans) in the environmental review process for the Lawrence-Mitty Park and Trail Project. We are committed to ensuring that impacts to the State’s multimodal transportation system and to our natural environment are identified and mitigated to support a safe, sustainable, integrated and efficient transportation system.

The Local Development Review (LDR) Program reviews land use projects and plans to ensure consistency with our mission and state planning priorities. The following comments are based on our review of the February 2024 MND.

Project Understanding
The proposed project involves the development of a new public park and an extension of the Saratoga Creek Trail. The site is located along the west side of Lawrence Expressway, south of I-280 and adjacent to Saratoga Creek in the City of Cupertino.

Travel Demand Analysis
With the enactment of Senate Bill (SB) 743, Caltrans is focused on maximizing efficient development patterns, innovative travel demand reduction strategies, and multimodal improvements. For more information on how Caltrans assesses Vehicle Miles Traveled (VMT) analysis for land use projects, please review Caltrans’ Transportation Impact Study Guide (link).

The project VMT analysis and significance determination are undertaken in a manner consistent with the Office of Planning and Research’s (OPR) Technical Advisory. Per Comment Letter 1: California Department of Transportation 1-1 1175
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Susan Michael, Capital Improvement Programs Manager
March 12, 2024

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