06-16-2021 - 16:54 - Update on activities at Sand Creek

Suncor Energy (U.S.A.) Inc. is continuing its investigation of sheen observed on May 22 and May 31 at a small section of Sand Creek near our Commerce City refinery. No additional sheen has been observed in the creek along our property since May 31. To date, aside from one outfall sample on May 31, none of the samples of the refinery’s outfall water have exceeded Benzene and BTEX (benzene, toluene, ethylbenzene and xylene) permit limits. All surface water samples in Sand Creek and the South Platte River analyzed to date have been below Colorado Surface Water standards for Benzene and BTEX compounds. Our investigation is ongoing. We do not yet have persuasive evidence regarding the cause(s) of either event. While we continue our investigation, booms remain in place to protect Sand Creek and we continue to collect groundwater and surface water samples and evaluate groundwater and surface water flows.

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Planned maintenance / Turnarounds

Planned maintenance is nearing completion at the refinery. As we bring our operating units back into service, you may see increased flaring and hear additional noise in the area. No immediate action is needed.

Commerce City Refinery