New Idria, California
New Idria grounds, 2004
|Coordinates: Coordinates: |
|County||San Benito County|
|Elevation||2,648 ft (807 m)|
|Time zone||UTC−8 (Pacific)|
|• Summer (DST)||UTC−7 (PDT)|
|GNIS feature ID||1660786|
|Official name||New Idria Mine|
The area is inside Area code 831. It is included in the Monterey Bay Unified Air Pollution Control District and the Panoche Elementary School District. San Benito Mountain, elevation 5,241 feet (1,597 m), is located 3.6 miles (5.8 km) southeast. The nearest city is King City along U.S. Route 101.
The New Idria Mercury Mine was named in honor of the world's then second largest quicksilver mine in what was then Idria, Austria, now Idrija, Slovenia; (Slovene pronunciation [ĭdrija], California English pronunciation [īdria].) The town grew to support the mining operations, but the mine closed in the 1970s. The town is currently an abandoned ghost town with more than 100 standing buildings, though vandalism has contributed to their deterioration in recent years. According to the US Geological Survey, both Idria (primary) and New Idria (variant) are recognized for federal use in describing the community.
The community was established to support the mine, which mainly extracted mercury, since cinnabar was abundant in the local rock formations. Mercury mining at the location began in 1854. At one time, the New Idria mines were America's second most productive mines, with the New Almaden mines in the vicinity of San Jose, about 82 miles (132 km) northwest, being the first.
The discovery of mercury ore at New Idria came soon after the discovery of gold in the Sierra foothills, which began the California gold rush. At that time, mercury was important in extracting gold from gold ore. Before the New Idria and New Almaden Quicksilver Mines, the mercury came almost exclusively from Europe.
The New Idria Mining Company was formed soon after the discovery of cinnabar (quicksilver ore) in the southern Diablo Range of central California in 1854. The town of New Idria began around 1857 and about 300 men were employed at the mine by 1861. The first school opened in 1867 and the New Idria Post Office opened in 1869, with Edward A. Morse as the first postmaster. In 1894, the New Idria Post Office dropped the word "New" and the town become known as Idria. The New Idria Quicksilver Mining Company closed in 1972 and the town has since become a ghost town.
On July 30, 2010, a fire destroyed 13 buildings on the north side of town.
- Superfund Site
In 2011, New Idria was re-listed as a U.S. Environmental Protection Agency (EPA) Superfund site, owing to unchecked mercury run-off and contamination. As of June, 2012, the entire section of the former town site on the south side of New Idria/Clear Creek road is fenced-off.
Environmental concerns in the area
The New Idria Mercury Mine was initially investigated in the 1990s by the EPA, for possible inclusion on the EPA's National Priorities List, but the site did not rank high enough at that time to be listed. A site reassessment was begun in 2002, and an expanded site assessment begun in 2009, which was concluded in October 2010. In March 2011, the EPA proposed New Idria to its National Priority List. Elevated levels of mercury were found downstream of the town, as well as significant levels of mercury and other heavy metals found within tailings piles on the site. The region has a long history of mining, with asbestos and chromium being mined in addition to mercury; the EPA's 2004 Risk Assessment for the nearby Clear Creek Management Area identified 86 separate abandoned mines in the vicinity. The natural rock formations in the area have been shedding asbestos-rich debris into stream valleys for millions of years The average New Idria rock contains 5-15% by volume short fiber asbestos. The 2010 edition of Rand McNally's The Road Atlas labels the area immediately south of New Idria as an "Asbestos Hazard Area".
The New Idria Mining District is known for its abundance of rare minerals such as benitoite, named after the San Benito River. Gem quality benitoite is only found in this area of the world. New Idria is also home to serpentinite rock. Many thousands of tectonic events acting on the serpentinite have produced extensive deposits of short-fiber asbestos.
- New Idria Mercury Mine
- Mercey Hot Springs, California
- Paicines, California
- Panoche, California
- State Route 25
- "Idria". Geographic Names Information System. United States Geological Survey. Retrieved February 25, 2015. CS1 maint: discouraged parameter (link)
- "New Idria Mine". Office of Historic Preservation, California State Parks. Retrieved 2012-10-11.
- Area Code and school information was derived from US Department of Education files.
- "How do you pronounce Idria". Archived from the original on 2006-08-21. Retrieved 2006-09-24.
- "New Idria". Archived from the original on 2005-10-24. Retrieved 2005-07-28.
- Salley, Harold E. (1991) History of California Post Offices, 1849-1990, p. 99. The Depot, ISBN 0-943645-27-1
- "The New Idria Time Line". Archived from the original on 2010-04-01. Retrieved 2009-12-02.
- "Gould Rotary Furnace". Archived from the original on 2007-09-26. Retrieved 2007-05-06.
- [dead link]
- Historic 'New Idria' listed as Superfund site, Thursday, September 15, 2011, KGO TV, San Francisco
- "New Idria superfund status at U.S. EPA". Cfpub.epa.gov.
- "EPA – New Idria Mercury Mine". Epa.gov.
- "Search for Superfund Sites Where You Live". Epa.gov. September 4, 2015.
- Ross, M (2003). "History of asbestos discovery and use and asbestos related disease in context with the occurrence of asbestos within ophiolite complexes." Geological Society of America, special paper 373
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