Latest News
August 2, 2025
On August 2, 2025, at around 5 p.m., the benzene level at fenceline monitor MS-01 was 27.4 ppb for about an hour. This reading is above the acute Reference Exposure Level (REL) of 8 ppb. After discussion with SCS Engineers and the instrument manufacturer, and an in-depth analysis of the available data, it was determined that this exceedance was caused by instrument instability, and the data is considered invalid. The same instrument issue was responsible for the slightly elevated levels of toluene and THF that were observed around the same time. SCS is servicing the instrument to prevent this from recurring. Notably, at the time of this reading, none of the community monitoring sites recorded an increase in benzene or other measured pollutants. A technical report detailing the rationale for invalidating this data is being drafted and will be made available soon.
