Septic systems are an important consideration when performing a Phase I Environmental Assessment (Phase I ESA) of a property. In accordance with ASTM E1527–21, a recognized environmental condition (REC) is defined as the presence or likely presence of any hazardous substances or petroleum products on a property, due to past or present activities. While a septic system may not inherently qualify as a REC, its presence may cause problems for providers of Phase Is.
The Phase I standard requires investigation of historical property use to identify any potential sources of contamination. If it is suspected that hazardous waste or petroleum products may have been discharged to the septic system, then the presence of the septic system becomes a significant factor in the assessment.
Recently, Path Forward conducted a Phase I ESA on a property that was previously used as a school and later converted to a community building. Although a septic system was identified, it was not suspected that hazardous waste or petroleum products would have been discharged. In contrast, another project involved a single-family home where the occupant was rebuilding cars, and a septic system was also identified. Due to the absence of identified waste handling procedures at the single-family home, there was a high likelihood that hazardous waste or petroleum products may have been discharged to the septic system. In this case, the presence of the septic system was considered a REC.
It is crucial to work with experienced professionals when conducting a Phase I ESA, especially when septic systems are involved. Path Forward Partners has extensive experience in conducting Phase Is and identifying potential sources of contamination, including septic systems. By working with a qualified and experienced professional, users of the Phase I can ensure that potential risks are identified and mitigated, and that they have a comprehensive understanding of their property’s environmental history.
Prospective purchasers/lessors, financial institutions, and property owners should work with experienced professionals, such as Path Forward Partners, to ensure that all potential risks are identified and addressed during the assessment process. Learn more about our due diligence services including Phase I ESAs at the link below:Phase I Environmental Site Assessments