PARACHUTE, Colo. (AP) — Oil company workers looking for the source of a liquid hydrocarbon found near Parachute Creek are focusing on a valve box for a pipeline carrying natural gas liquids away from a natural gas plant.

Department of Natural Resources spokesman Todd Hartman said Tuesday that the soil around the valve box is saturated with hydrocarbons.

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Williams discovered soil contamination March 8 next to its gas plant on land owned by WPX Energy. State regulators have issued notices of alleged violation to both companies.

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Water sampling from Parachute Creek hasn’t detected any contamination in the creek. Williams is continuing to recover liquid hydrocarbons and impacted groundwater.

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