Monticello Millsite Pond #4

Monticello Millsite Pond #4 is an earth dam located in San Juan County, Utah. It carries a Low hazard potential classification.

About Monticello Millsite Pond #4

The primary purpose of Monticello Millsite Pond #4 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 Us Dept. Of Energy Grand Junction (federal).

The dam stands 14 feet tall and stretches 1,650 feet across, and has a storage capacity of 55 acre-feet.

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.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateUtah
CountySan Juan
Coordinates37.84565, -109.33682

Physical Characteristics

Dam TypeEarth
NID Height14 ft
Dam Length1,650 ft

Storage & Hydraulics

NID Storage55 acre-ft
Normal Storage55 acre-ft
Spillway TypeUncontrolled

Ownership & Safety

PurposeTailings
OwnerUS DEPT. OF ENERGY GRAND JUNCTION
Owner TypeFederal
Hazard ClassificationLow
Condition AssessmentNot Rated
Emergency Action PlanNot Required

Identifiers

NID IDUT21467
Federal IDUT21467
More InfoState Dam Safety Program

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