Aps Lined Decant Water Pond Reservoir Report
Last Updated: December 19, 2025
Located in Shiprock, New Mexico, the Aps Lined Decant Water Pond is a vital water resource managed by the Arizona Public Service Company.
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Summary
This earth dam structure, completed in 2003, serves the primary purpose of managing tailings. With a dam height of 86 feet and a storage capacity of 422 acre-feet, the pond plays a significant role in water conservation and environmental protection in the region.
Regulated by the Office of the State Engineer and subject to regular inspections, the Aps Lined Decant Water Pond has been found to be in satisfactory condition, with a significant hazard potential. Despite its high risk assessment, the pond's emergency action plan and risk management measures are currently not specified. The structure's location on the Chaco Wash and its role in managing water resources make it a key asset for climate enthusiasts and water conservationists interested in sustainable infrastructure development and management.
Overall, the Aps Lined Decant Water Pond stands as a crucial component of the water management infrastructure in San Juan County, New Mexico. With its significant storage capacity and strategic location, this earth dam structure serves as a testament to the importance of effective water resource management in arid regions. As climate change continues to impact water availability, the pond's role in ensuring water security and environmental protection remains essential for the community and ecosystem alike.
Year Completed |
2003 |
Dam Length |
5740 |
Dam Height |
86 |
River Or Stream |
CHACO WASH - TR |
Primary Dam Type |
Earth |
Surface Area |
42 |
Drainage Area |
0.18 |
Nid Storage |
422 |
Outlet Gates |
Needle - 0 |
Hazard Potential |
Significant |
Foundations |
Soil |
Nid Height |
86 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
San Juan River At Shiprock
|
639cfs |
La Plata River Near Farmington
|
4cfs |
San Juan River At Farmington
|
541cfs |
Animas River At Farmington
|
282cfs |
La Plata River At La Plata
|
3cfs |
Mancos River Near Towaoc
|
8cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Aps Lined Decant Water Pond