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Phase 1 Environmental Site Assessment — Complete Cost Guide
Factors, Pricing, What's Included · California $1,800–$2,500
$1,800–$2,500
Flat-rate cost
7–10 days
Report turnaround
Since 1992
Serving California
ASTM E1527-21
Compliance standard
Phase 1 ESA Cost in California
The cost of a Phase 1 Environmental Site Assessment in California typically ranges from $1,800 to $2,500. ALFA Environmental offers flat-rate pricing within this range for most standard commercial properties.
Factors That Affect Phase 1 ESA Cost
Several factors can affect the cost of a Phase 1 ESA: property size and complexity, the property's industrial or commercial history, location and travel requirements, requested turnaround time, and any additional services such as asbestos surveys or lead paint assessments.
What Is Included in the Cost
Our Phase 1 ESA fee covers the complete ASTM E1527-21 scope: environmental database records review, site reconnaissance, interviews, historical research, and the written report with findings, RECs, and conclusions signed by a qualified Environmental Professional.
What Is Not Included
The Phase 1 ESA does not include subsurface sampling, laboratory analysis, or remediation. If RECs are identified, a Phase 2 ESA may be recommended to further investigate subsurface conditions.
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Phase 1 ESA Cost $1,800–$2,500 · ASTM-Compliant · Report in 7–10 Business Days
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