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ASTM E1527-21 / EPA All Appropriate Inquiries (40 CFR 312)

Phase I Environmental Site Assessments in California

$1,495Flat price / standard scope
5business days
Get my price and date

Environmental due diligence for commercial properties in Los Angeles, San Francisco Bay Area, San Diego and statewide. DTSC / SWRCB records, historical research and site reconnaissance within the confirmed scope.

Rush delivery: 3 business days for $400 more.

Prefer to talk? (858) 299-2442

Order your Phase I ESA

$1,495 flat / 5 business days / confirmed within 1 business hour

No payment online. No commitment until you authorize.

Standard delivery: 5 business days.

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We confirm scope, price and date within 1 business hour (7am-5pm PT, Monday to Friday). By submitting you agree to be contacted by phone, email or text about this request (SMS terms).

What we review in California

California sources include DTSC EnviroStor, the SWRCB GeoTracker database, the Cortese List, CalEPA regulated site lists, regional water quality control boards and county CUPA records.

Historical Sanborn maps and city directories are available for most metros back to the early 1900s; aerial coverage is unusually good.

Property conditions to consider

  • Leaking underground storage tanks tracked in GeoTracker
  • Historical dry cleaners with PCE releases
  • Cortese List (Hazardous Waste and Substances Sites) listings
  • Former agricultural land with pesticide use
  • Vapor intrusion concerns in dense urban infill

Market context

Los Angeles is one of the three largest Phase I ESA markets in the country (LightBox, 2025). Our $1,495 flat price applies to standard-scope properties statewide.

How it works

A clear path from address to answer.

  1. Start here

    Tell us about the property

    Address, report type and timeline. Start your request online, with no payment required.

  2. 1 business hour

    Confirm your scope, price and date

    A project manager reviews the request and sends your fixed proposal. Work begins after you authorize.

  3. Records + site

    Research, site visit and review

    Records research starts when you authorize, and the site visit follows on the confirmed schedule. An Environmental Professional who meets 40 CFR 312.10 reviews the findings and signs the report.

  4. 5 business days

    Your report, ready for the next step

    Receive your report and supporting documentation. We stay available for questions from you and your lender.

Your questions

Questions we are asked.

Have a question about your property or transaction? Talk to our team.

How much does a Phase I ESA cost in California?

$1,495 flat for standard-scope commercial properties anywhere in California, delivered in 5 business days from authorization and confirmed site access.

Who performs the site visit in California?

A qualified field professional local to the property, booked when you authorize and supervised by our Environmental Professional. Your confirmed delivery date already accounts for the site visit.

Is the report accepted by lenders and the SBA?

Phase I reports are written to ASTM E1527-21 and EPA’s All Appropriate Inquiries rule, signed by an Environmental Professional who meets 40 CFR 312.10, and delivered with the Appendix 5 reliance letter that SOP 50 10 8.1 requires on SBA loans. If noncompliance causes a lender or SBA rejection, we correct the report at no charge or, if we cannot, refund its fee; our engagement terms list the exclusions.

Move your transaction forward.

Scope, price and delivery date confirmed before you authorize. No payment online.

Start an orderPrefer to talk? (858) 299-2442