Stancills Inc. Settling Pond

About Stancills Inc. Settling Pond

The primary purpose of Stancills Inc. Settling Pond is tailings. Tailings dams contain waste material from mining operations — typically a slurry of finely ground rock left over after valuable minerals have been extracted. These structures require ongoing monitoring because tailings can contain heavy metals and other contaminants. The dam is owned by Stancills Inc. (private). It impounds the Principio Creek-os near Charter Hall Point.

The dam stands 26 feet tall and stretches 857 feet across, creates a reservoir covering 3 acres, has a maximum storage capacity of 83 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1976, the structure is 50 years old.

This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 04/26/2011. That was over 14 years ago.

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