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Closed, Illegal and Abandoned (CIA) Disposal Sites Definitions |
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| Geophones are spring-mounted electric coils moving within a magnetic field, which generate electric currents in response to ground motion. | ||
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Last updated: April 18, 2008 Closed, Illegal, and Abandoned (CIA) Disposal Sites, http://www.ciwmb.ca.gov/LEACentral/CIA/ John Macanas, jmacanas@ciwmb.ca.gov (916) 341-6722 |