Tenneco Mill Pond Dam

About Tenneco Mill Pond Dam

The primary purpose of Tenneco Mill Pond Dam 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 Galtar Llc (private). It impounds the Armagosa River-tr.

The dam stands 18 feet tall and stretches 1,300 feet across, creates a reservoir covering 5 acres, has a maximum storage capacity of 72 acre-feet, and collects water from a drainage area of 1 square miles.

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 10/03/2018.

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