[CPEO-BIF] Penn Mine landfill, Campo Seco, California

[Lenny Siegel <lsiegel@cpeo.org>]

Toxic mine site in Lode needs fix
Water leaking into landfill at heart of '90s cleanup

By Dana M. Nichols
Stockton Record (CA)
August 15, 2013

CAMPO SECO - Cottonwoods now grow in the once-barren gulch leading  
from the Penn Mine, and fish no longer die by the thousands when rain  
runoff washes from the mine into nearby Camanche Reservoir.

But there's still plenty of evidence of the mine's toxic past,  
including crusty mineral formations along creeks and bright red and  
orange water trickling down the gulch that leads from the place where  
350,000 cubic yards of waste from the former copper and zinc mine lie  
buried in a landfill.

That landfill is the heart of a $16.5 million cleanup completed in  
the late 1990s by state water pollution regulators and the East Bay  
Municipal Utility District. Now, officials say water is somehow  
leaking into the landfill, and this fall, they will need to do a $1.2  
million repair to the plastic "geomembrane" wrapped around the mine  
waste.


...

For the entire article, see
http://www.recordnet.com/apps/pbcs.dll/article?AID=/20130815/A_NEWS/ 
308150317

--

Lenny Siegel
Executive Director, Center for Public Environmental Oversight
a project of the Pacific Studies Center
278-A Hope St., Mountain View, CA 94041
Voice: 650/961-8918 or 650/969-1545
Fax: 650/961-8918
<lsiegel@cpeo.org>
http://www.cpeo.org

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