Coverage · Phase I ESA
California
Atlensa reviews Phase I ESAs for projects in California - catching errors before they reach DTSC (EnviroStor) and State Water Board (GeoTracker) and flagging gaps in ASTM E1527 compliance.
Request Early AccessOversight Agencies
DTSC (EnviroStor) and State Water Board (GeoTracker)
Regional Water Quality Control Boards
Certified Unified Program Agencies (CUPAs) / local health
Key Standards & State Overlays
ASTM E1527 / 40 CFR 312 All Appropriate Inquiries
Cortese List (Gov. Code 65962.5)
DTSC Voluntary Cleanup / Site Cleanup Program
SWRCB UST and Spills, Leaks, Investigations & Cleanups (SLIC)
Common REC Settings
Dry cleaners and PCE plumesUST / LUFT corridorsAerospace and metals manufacturingAg chem and Central Valley dairiesPorts and railyards
Regulatory Context
California Phase Is that skip GeoTracker, EnviroStor, or the Cortese List miss the databases lenders and CEQA lead agencies actually read. CUPA files and regional board case status often contradict a 'closed' listing. Vapor encroachment from PCE dry cleaners is the most common REC the report buries. Atlensa checks the Phase I against GeoTracker/EnviroStor pulls, the user questionnaire, and the site plan.
How Atlensa Helps
Reviews Phase I ESAs against ASTM E1527 and the programs that apply in California
Checks the report against DTSC (EnviroStor) and State Water Board (GeoTracker) and related agency requirements
Flags data gaps, inconsistencies, and missing documentation
Reduces report turnaround from days to hours
Working on a California Phase I ESA?
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Other reports in California
EAEnvironmental AssessmentNEPABABiological AssessmentESA §7WDRWetland Delineation ReportUSACE / CWA 404
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