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United States
Wendover Mine

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 Location:
1 km E from Wendover, Utah, United States

  Address:
2.5 Miles East Frontage Road
P.O. Box 580
Wendover
Utah, United States
84083
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WebsiteWeb
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Overview

StageProduction
Mine TypeIn-Situ
Commodities
  • Potash
Mining Method
  • Brine mining
Production Start...
Mine Life25 years (as of Jan 1, 2021)
Potash at Wendover mine is produced primarily from brine containing salt, potash, and magnesium chloride that is collected in ditches from the shallow aquifers of the West Desert. These materials are also collected from a deeper aquifer by means of deep-brine wells.


Owners

Source: p. 114
CompanyInterestOwnership
Intrepid Potash, Inc. 100 % Indirect

Contractors

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Deposit Type

  • Brine


Summary:

Mineral Deposit
Intrepid’s Wendover operation produces potash by transporting subsurface potassium-rich brines to the surface where they areexposed to western Utah’s arid climate. The aqueous portion of the brine is removed through evaporation, allowing the evaporiteminerals to precipitate and be collected for further processing. Because the potash is derived from subsurface brines, the mineral depositis best represented by characteristics of the aquifer(s) containing the brine.

The shallow-brine aquifer, as it is called, exists within the near-surface carbonate mud layer. The carbonate mud transitions to theless-permeable lacustrine deposits at 20–30 ft depth. Brine extraction involves excavating a network of ditches, which allow the natural inflow of aquifer fluids, thereby exposing the brine to dry atmospheric conditions.

Significant Mineralized Zones
The zones of mineralization at Wendover are defined by the presence of potash-rich brines. These brines are known to occur in two out of three local aquifers: the shallow-brine aquifer and the deep-brine aquifer. The third aquifer, which is not potash-bearing and occurs stratigraphically between the other two, is the alluvial-fan aquifer.

The shallow-brine aquifer is a near-surface aquifer and serves as the primary source of potash-rich brine. It is contained in the highly permeable salt and gypsum crust and underlying fractured carbonate muds. The alluvial-fan aquifer, the middle of ........


Mining Methods

  • Brine mining


Summary:

Potash at Intrepid-Wendover is produced through solar evaporation of naturally occurring brines collected from the sedimentary basin adjacent to the processing facility via brine collection ditches and extraction wells. The potash content of the collected brine is concentrated by solar evaporation to the point that solids are precipitated and can be collected. Harvested solid salts are hauled to the processing facility, where they are dried, sized, and stored for shipment. Potash, MRS, NaCl, and MgCl are shipped by both truck and railvia I-80 and the UPRR.

Brines from the shallow-brine aquifer, drained by gravity, are gathered by a system of collection ditches, which are approximately 20 to 30 ft deep by 9 to 40 ft wide. The total collection ditch system covers a length of 117 miles and annually collects 3.4 billion gallons of brine from the shallow-brine aquifer. Brines pumped from the deep-brine aquifer are used to augment the shallow brine to the collection system.

Collected brines are pumped into a primary pond, and solar energy is utilized to heat the ponded brine so that evaporation may proceed. As the brine is concentrated to a point just short of potash precipitation in the primary pond, the brine is then transferred into a harvest pond for selective precipitation of the potash crude salt.

As water evaporation continues in the harvest pond, sylvinite, a physical mixture of NaCl and KCl, is precipitated to the pond floor until the brine ........


Crushing and Grinding


Processing

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Summary:

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Production:

CommodityUnits2022202120202019201820172016
Potash k tons  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required897849
All production numbers are expressed as salt.
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Operational Metrics:

Metrics202220212020201920182017
Ore tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required409 k tons404 k tons362 k tons
Annual production capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required100 k tons of potash salt100 k tons of potash salt100 k tons of potash salt
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Reserves at December 31, 2022:
Mineral Resources Brine Cut-off: 0.19% K2O.

Mineral Reserves Cutoff: 0.3% K2O.

CategoryTonnage CommodityGradeContained Metal
Probable 88.2 M tons K2O 0.5 %
Indicated 80.5 M tons K2O 0.5 % 5 M tons
Inferred 109.1 M tons K2O 0.5 % 6.8 M tons



Heavy Mobile Equipment as of December 31, 2021:
HME Type
Scraper

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Mar 16, 2023
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Staff:

EmployeesYear
Subscription required 2022
Subscription required 2021
Subscription required 2020

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2019
Form 10-K 2018
Form 10-K 2017
Form 10-K 2016
Form 10-K 2015
Other 2011
Annual Report 2008
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