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Central California District
Release Date: 06/10/10
Contacts: David Christy , 916-941-3146  
  Gary Sharpe , 707-468-4000  
News Release No. CA-CC-10-78

Public Meeting Planned on Draft Alternatives for Contact and Sonoma Mercury Mines Cleanup

The U. S. Bureau of Land Management will hold a public meeting on June 28 for review and comment on the draft final Engineering Evaluation and Cost Analysis (EE/CA), for the Contact and Sonoma mercury mines, located near Healdsburg in Sonoma County. The EE/CA will identify the BLM’s preferred alternative for the response actions to be taken at the site.

The meeting at the public library, 139 Piper St., Healdsburg, will begin at 7 p.m. and is expected to last until 9 p.m.

“The meeting will give the public an opportunity to look at the problem of abandoned mercury mines and the alternatives available to reduce or eliminate those problems at these particular mines.  Participants in the meeting will hear a presentation about the site and alternatives available for remediation.  There will be opportunities to ask questions and provide written comments,” said Gary Sharpe, supervisory resources management specialist in the BLM Ukiah Field Office.

The Contact Mercury Mine and Sonoma Mercury Mine are located near the top of the Pine Flat Road and were operated from the 1880s to 1956.  The entire site includes approximately 200 acres of BLM-administered public land.  Mercury-bearing material is exposed in cuts, slopes, open pits, mine retort waste and waste rock piles.

The BLM also announces the availability of the administrative record that contains all documents, including the draft EE/CA, that the BLM has used to support its decisions on appropriate response actions taken at the site so far.  The administrative record is available for review during normal business hours, Monday through Friday, from 7:30 a.m. to 4:30 p.m. at the BLM’s Ukiah Field Office, 2550 N. State St., Ukiah. 

The BLM strongly encourages interested members of the public to comment, in writing, on the documents, especially the EE/CA, contained in the administrative record.  All comments must be received in writing on or before July 17 to be considered and responded to in the final EE/CA decision.  The comment period begins on June 18.

Comments can be provided at the public meeting, through the BLM’s website at, by email to, by fax to (707) 468-4027, or by mail to BLM Ukiah Field Office, 2550 N. State St., Ukiah, Calif., 95482.


Central California District   2800 Cottage Way, Sacramento, CA 95825  

Last updated: 06-10-2010