
Note to Reader: The MStC standard was published in May 2025, and now EPA and ASTM are focusing on outreach and training. The 2023 LUSTLine article, “Into the MStC – Developing A New Standard for Moving Petroleum Release Sites to Closure” (LUSTLine # 93), describes some of the historical and scientific bases the MStC Task…

UST cleanup programs have made remarkable progress over the last 34 years and our mission is as crucial now as it was in 1989. We have completed more than 512,000 UST cleanups and have learned a lot in the process. Keeping our drinking water safe is a primary concern. About half of our active UST…