Phase 2 subsurface investigations are conducted to investigate real property for the presence of contamination from historical, current or sometimes nearby sources of contamination that could affect the property. It is very important for lenders, brokers and property owners to know that the detection of ANY contamination, regardless of the levels or concentrations are subject to reporting to environmental agencies under the State of California Health and Safety Code.
Regional Water Quality Control Board (RWQCB) Environmental Screening Levels (ESLs) are NOT to be used to determine the reporting requirements for unauthorized releases of contamination. ESLs are derived from the concentrations of individual contaminants that pose a risk to various human and environmental receptors, based on scientific risk-based studies. Phase 2 subsurface investigations should be carefully considered prior to their commencement since the detection of contamination must be reported, an act that could lead to significant consequences to the value of property.