2010 CPEO Military List Archive

From: Lenny Siegel <lennysiegel@gmail.com>
Date: Wed, 17 Mar 2010 03:16:19 -0700 (PDT)
Reply: cpeo-military
Subject: [CPEO-MEF] PERCHLORATE: EPA tracks Rialto (CA) plume
The EPA is tracking tainted Rialto water and working toward cleanup

Riverside Press-Enterprise
March 16, 2010

Perchlorate-contaminated groundwater has spread beyond the boundaries of a Superfund cleanup project in Rialto, said environmental regulators who are trying to determine how fast the plume is moving and whether it is headed toward wells serving Riverside.

The new findings come from samples at six monitoring wells installed in Rialto last year by the U.S. Environmental Protection Agency, project manager Wayne Praskins said Friday. The wells are in the lower Rialto-Colton basin, beyond more than a mile-long strip where polluted water already is slated to be treated.

Tests from various depths of the 900-foot wells showed concentrations above state drinking water standards for perchlorate, a rocket fuel ingredient that can impair thyroid function. Also found in levels above state and federal safety levels was the cleaning solvent trichloroethylene, or TCE, a likely carcinogen that may cause liver and kidney damage and impair fetal development.


For the entire article, see


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

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