During a Phase I ESA, evidence of an underground storage tank (UST), including a fuel gauge, supply and return lines, and an apparent fill port, were identified at an office building. The consultant was hired to perform a tank tightness test on what was believed to be a UST fill port in front of the building. The test was performed and failed. Our review of the Phase I report and a brief site inspection revealed that the alleged fill port was in fact a sewer vent, a distinction that most people who are familiar with basic plumbing can make, and any assessor should be able to easily identify.
I hope that this case story, and future case stories and insights, will help readers to gain valuable industry insights. I’m always interested in hearing others’ stories, so comments are welcome!
Pictured above is an actual fill port.