Phase I Environmental Site Assessment in Southern California
A Phase I Environmental Site Assessment (ESA) documents the environmental history of a property and identifies recognized environmental conditions (RECs) that could affect financing, permitting, or development plans. GeoTed provides Phase I ESA services for residential and small commercial properties throughout Southern California.
Request a Site ReviewWhen a Phase I ESA Is Needed
Phase I ESAs are typically required by lenders, requested by buyers during due diligence, or needed to satisfy agency requirements before development. Common situations include:
- Commercial or mixed-use property purchase or refinancing
- Development or redevelopment of a property with unknown prior use
- Residential properties with potential contamination concerns (former dry cleaners, gas stations, industrial uses on or adjacent to the site)
- Agency or Water Board compliance requirements
- Pre-acquisition due diligence for investors or buyers
- Properties near known contaminated sites or former industrial corridors
What to Send GeoTed
Send the property address, intended use or transaction type, any known history of the property or adjacent uses, and any agency correspondence if applicable. GeoTed will review site context and advise on scope and timeline.
Send Project InformationService Area
GeoTed provides Phase I ESA services throughout Los Angeles, Ventura County, Orange County, and surrounding Southern California communities.
Frequently Asked Questions
What is a Recognized Environmental Condition (REC)?
A REC is the presence or likely presence of hazardous substances or petroleum products in, on, or at a property due to a release or threatened release — either current or past. Identifying RECs is the primary purpose of a Phase I ESA.
Does a Phase I ESA involve any testing?
No. A Phase I ESA is a records review and site observation. If RECs are identified and further investigation is needed, a Phase II ESA (which does involve soil and/or groundwater sampling) may be recommended.
How long does a Phase I ESA take?
Typically two to four weeks depending on property complexity, records availability, and site access. Rush timelines can sometimes be accommodated — contact GeoTed with your deadline and we'll advise on what's feasible.
Do I need a Phase I ESA for a residential property?
Residential Phase I ESAs are less common than commercial, but are sometimes requested by lenders, required by agencies, or prudent for properties with known or suspected contamination history — for example, a home adjacent to a former gas station, dry cleaner, or industrial facility.