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California State Certified Mobile Laboratory Services
Direct-Push Drilling Technology
Methane Testing
Soil & Groundwater Surveying
Vapor Intrusion (VI) Soil Gas & Indoor Air Testing
Remediation Technologies
Chemical Injection Remediation Services
Soil Vapor Extraction (Sve) & Vapor Intrusion Mitigation Services
PROJECTS
RESOURCES
ABOUT
SERVICES
Close SERVICES
Open SERVICES
California State Certified Mobile Laboratory Services
Direct-Push Drilling Technology
Methane Testing
Soil & Groundwater Surveying
Vapor Intrusion (VI) Soil Gas & Indoor Air Testing
Remediation Technologies
Chemical Injection Remediation Services
Soil Vapor Extraction (Sve) & Vapor Intrusion Mitigation Services
PROJECTS
RESOURCES
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EST Resources
Cleaner Soil. Safer Buildings.
Smarter Remediation.
Chain of Custody Form
Chain of Custody Record (pdf)
Chain of Custody Record (xlsx)
Useful Links
California DTSC/HERD Johnson and Ettinger Models
SWRCB DRAFT Low-Threat UST Closure Policy, July 14, 2011
American Petroleum Institute Vapor Intrusion Guidance
Interstate Technology & Regulatory Council VI Guidance
California DTSC CalTOX Model
Use of California Human Health Screening Levels (CHHSLs) in Evaluation of Contaminated Properties
USEPA Region 9 Regional Screening Levels for Chemical Contaminants
California DTSC Vapor Intrusion Mitigation Advisory
California DTSC Lead Risk Assessment Spread Sheet (LeadSpread)
USEPA On-Line Tools For Site Assessment Calculations – Evaluation of Vapor Intrusion into Buildings form Contaminated Groundwater and Soil
Caltrans Soil and Rock Logging, Classification and Presentation Manual, 2010 Edition
Over 20 years of Proven Experience
Complex Sites. Clear Solutions.
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