View source for Tintic Standard Reduction Mill

{{Use mdy dates|date=March 2025}}
{{Infobox NRHP
| name         = Tintic Standard Reduction Mill
| nrhp_type    =
| image        = Tintic Standard Reduction Mill.jpeg
| caption      = Tintic Standard Reduction Mill, June 2009
| nearest_city = [[Genola, Utah|Genola]], [[Utah]]<br />[[United States]]
| coordinates  = {{coord|39.95748|N|111.85500|W|display=inline,title}}
| locmapin     = Utah#USA
| built        = 1916
| builder      = Madge, W.C.
| added        = September 13, 1978
| area         = {{convert|0.1|acre}}
| refnum       = 78002700<ref name="nris">{{NRISref|version=2010a}}</ref>
}}

The '''Tintic Standard Reduction Mill'''&mdash;also known as the '''Tintic Mill''' or '''Harold Mill'''&mdash;built in 1920, and only operating from 1921 to 1925, is an abandoned [[Refining (metallurgy)|refinery]] or concentrator located on the west slope of [[Warm Sprigs Mountain (Utah)|Warm Springs Mountain]] on the southern edge of [[Genola, Utah|Genola]], [[Utah]], [[United States]]. In 2002, the Utah Department of Environmental Quality tested the soil and found it contained high levels of arsenic and lead, which can lead to serious health problems and even death.<ref>{{cite web |last1=Williams |first1=Carter |title=Officers to issue citations to Tintic Mill trespassers amid growing cases |url=https://www.ksl.com/article/46626723/officers-to-issue-citations-to-tintic-mill-trespassers-amid-growing-cases |website=KSL}}</ref>

==Description==
[[File:Harold mill2.jpg|thumb|left|Looking down on the Warm Springs in Genola, May 2008]]
The mill was designed and built by  W. C. Madge. It is significant as the only American mill using the Augustin process during the early 1920s.<ref name=nrhpdoc>{{cite web|url={{NRHP url|id=78002700}} |title=National Register of Historic Places Inventory/Nomination: Tintic Standard Reduction Mill |author=Philip F. Notarianni |date=January 30, 1978 |publisher=National Park Service}} and {{NRHP url|id=78002700|title=accompanying two photos from 1977|photos=y}}</ref> Metals processed at the mill included [[copper]], [[gold]], [[silver]], and [[lead]], all of which were received from another [[stamp mill|mill]] near [[Eureka, Utah|Eureka]]. The metal content of ore was increased through the process to make transportation less expensive. The reducing process used was an acid-brine chloridizing and [[Leaching (metallurgy)|leaching]] process which became outdated, leading to the abandonment of the site in 1925. At the mill's highest productivity it processed 200 tons of [[ore]] daily from the [[Tintic Mining District]].

What remains of the mill are foundations for water tanks, [[crusher]]s, roasters, iron boxes, leaching tanks, and drain boxes. The site dominates the surrounding landscape with its size and unique colors and shapes. It has been speculated that the mill may be the contributor of heavy metal pollution in the Warm Springs which lie below it.

It was listed on the [[National Register of Historic Places]] September 13, 1978.<ref name=nris/>

==See also==
{{stack|{{Portal|National Register of Historic Places}}}}
*[[Tintic Smelter Site]], site of a different "Tintic Mill", near [[Eureka, Utah|Eureka]] in [[Juab County, Utah]]
* [[National Register of Historic Places listings in Utah County, Utah]]

==References==
{{reflist}}
* [http://www.mitigationcommission.gov/hatchery/pdf/interim_hatchery_ea.pdf Warm-Water Interim Hatchery Facility - Environmental Assessment]. ''Utah Reclamation Mitigation Conservation Commission''.
* [http://www.nationalregisterofhistoricplaces.com/UT/Utah/state4.html National Register of Historic Places]

==External links==
{{stack|{{commons category|Tintic Standard Reduction Mill}}}}
* [http://ludb.clui.org/ex/i/UT3146/ The Center for Land Use Interpretation] - Includes a photo of the site.
* {{HAER |survey=UT-12 |id=md1633 |title=Tintic Standard Reduction Mill, Warm Springs Mountain, Goshen, Utah County, UT |photos=13|color= |dwgs=4 |data=6 |cap=1}}
* [http://content.lib.utah.edu/cdm4/item_viewer.php?CISOROOT=/USHS_Shipler&CISOPTR=8871&CISOBOX=1&REC=3] - An early photo of the Mill from the Utah State Historical Society.

{{NRHP in Utah by county}}
{{National Register of Historic Places}}

[[Category:Buildings and structures in Utah County, Utah]]
[[Category:Industrial buildings and structures in Utah]]
[[Category:Landmarks in Utah]]
[[Category:Manufacturing plants in the United States]]
[[Category:Industrial buildings completed in 1920]]
[[Category:Mining in Utah]]
[[Category:Industrial buildings and structures on the National Register of Historic Places in Utah]]
[[Category:Historic American Engineering Record in Utah]]
[[Category:National Register of Historic Places in Utah County, Utah]]


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