World Library  
Flag as Inappropriate
Email this Article

St. John's Mine

Article Id: WHEBN0008961904
Reproduction Date:

Title: St. John's Mine  
Author: World Heritage Encyclopedia
Language: English
Subject: Hastings Mine, Geography of Solano County, California, Sulphur Springs Mountain, Blue Rock Springs Creek, History of Solano County, California
Collection:
Publisher: World Heritage Encyclopedia
Publication
Date:
 

St. John's Mine

The St John's Mine is a mineral extraction site approximately three miles north of the city of Vallejo in Solano County, California, United States. The St John's site was used for extraction of cinnabar in the early 1900s.[1] The St. John's Mine is classified as a medium priority mine from the standpoint of environmental oversight.[2] The last inspection of the Hastings Mine occurred in 1997 and found only slight erosion of the considerable mine tailings; however the tailings exceed 10,000 cubic yards (7,600 m3) of material, or one of the largest cinnabar tailings in the State of California. Furthermore, the drainage from St. John's Mine flows to receiving waters of Rindler Creek and thence to Lake Chabot. Miles of underground shafts were driven in the course of working the quicksilver deposits in the area. In 1989, Earth Metrics reviewed old 1918 maps of workings of the Hastings and St. John's Mines and found that mine shafts were not driven into the site prior to the year 1918.[3]

Environmental effects

Principal ongoing impact is from mercury contamination of spring water flowing beneath the site; moreover, historical analysis has shown that the volume of spring water itself has been greatly reduced from levels of a century ago. This reduction of spring flow has come about due to the extensive mine shafts driven to achieve the cinnabar extraction.[3]

See also

References

  1. ^ Mercury Potential in the United StatesU.S.Bureau of Mines,
  2. ^ Oversight of inactive mercury mines in California
  3. ^ a b C.Michael Hogan, Marc Papineau et al., Environmental Assessment of the Columbus Parkway Widening between Ascot Parkway and the Northgate Development, Vallejo, Earth Metrics Inc. Report 7853, California State Clearinghouse, Sept, 1989

This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and USA.gov, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for USA.gov and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
 
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
 
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.
 


Copyright © World Library Foundation. All rights reserved. eBooks from Project Gutenberg are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.