| A spill was discovered at the RGU 23-6 tank facility at 7:00 a.m. on 5/28/17. A load-line valve that manifolds multiple tanks together was found to be partially opened, and produced water had filled the lined, metal secondary containment structure (1,500 bbls), and had also spilled over and ran into an earthen, tertiary containment structure / basin that was built between the tank battery and nearby Ryan Gulch (a dry, ephemeral drainage). The valve was immediately shut and the source of the spill was stopped. Vac trucks were dispatched to remove produced water from all containment structures. There was no discharge, release, or impact to Ryan Gulch. Production personnel are also installing a low-level alarm that will be set to trip before the secondary containment structure reaches capacity. Soil samples will be collected on 5/31/17 to determine if COGCC cleanup standards have been exceeded and if site remediation is necessary. Cattle rubed on the valve causing it to open. |