From The Denver Post (Bruce Finley) via The Broomfield Enterprise:
Company officials say tests show contaminants did not exceed state standards for surface water
Contaminated water has been seeping into Sand Creek just up from where it meets the South Platte River near the Suncor Energy oil refinery north of Denver, and company officials on Wednesday said they were monitoring conditions and “will make any necessary repairs” to a spill containment pool behind sandbags where crews were pumping out water.
A sheen of benzene and other chemicals was detected on the surface of Sand Creek on May 7 and again on May 15, company officials said.
Sunday’s heavy rains raised water levels along the creek, leading to a breach of the containment area.
Suncor contractors have drawn water samples from Sand Creek and the South Platte, and tested these for benzene, toluene, ethylbenzene, xylene and methyl tertiary butyl ether, company officials said. The results showed concentrations did not exceed state standards for surface water in those waterways, officials said.
Colorado Department of Public Health and Environment officials did not respond to queries about conditions at the refinery. It is located just north of Denver in Commerce City, along the creek and the Sand Creek Greenway public bicycle path, near where the creek flows into the South Platte.
“Who is watching this?” Adams County Commissioner Steve O’Dorisio said. “I’m concerned about the problems that continue to occur.”