INTREPID POTASH SOUTH PERIMETER DAM - NM00698-0396
Dam Name: INTREPID POTASH SOUTH PERIMETER DAM
State: NM
Downstream Hazard Potential: S
Incident Type: Non-Failure
Incident Date: 12/31/2017
Incident Driver: Seepage/Internal Erosion
Incident Mechanism 1: Piping
Incident Mechanism 2Erosion
Incident Mechanism 3
Incident IDNM00698-0396
Incident DescriptionSignificant increase in seepage up to 1,500 gpm from one location
Named Hydrologic Event
EAP Enacted (Y/N) due to IncidentNo
Fatalities (Number)
Number of People Evacuated0
Number of Habitable Structures Evacuated0
Number of Habitable Structures Flooded0
Other Infrastructure ImpactsNone
Economic Damages (in $)$500,000 to $1 million
ResponseNotified State official and the on-call engineer right away. Started pumping the seepage collection pond, suspended plant operation and mobilized construction equipments to construct additional seepage berms and buttress to the dam embankment.
Volume released at failure (ac-ft)
Additional Remarks or UpdatesDam embankment was stabilized by Jan 1, 2018. Subsequent works to assess the cause and implement a permanent repair continued. The repair was completed in March 2018 and the dam was returned to full operation.
Owner TypeP
Dam TypeRE
Primary Purpose(s)T
EAPN
Dam Height29 ft
Max Storage (ac-ft)70.00
Surface Area (acres)54.00
Year Completed
NID NumberNM00698
River NamePECOS RIVER-TR
Latitude32.4843
Longitude-103.792
Year Modified
Regulatory Agency(ies)OFFICE OF THE STATE ENGINEER
Incident Time8:30
Incident Duration2 days
Incident Report ProducedYes
Information Sources
