KUSA - The state health department's testing of rivers - impacted by last month's flooding - shows no evidence of oil and gas pollution.
However, they do show high levels of E-coli in some spots, especially in the Boulder Creek and Big Thompson River watersheds. It's being blamed on untreated sewage getting into the water.
The health department says there have been no reports of anyone getting sick from the contamination. More than two dozen water samples were collected late last month from eight rivers.
The health department is still analyzing the water for metals, which could have been released from mining areas.
(KUSA-TV © 2013 Multimedia Holdings Corporation)