phosphate mines and mining
der plans to allow occidental to mine phosphate in swift creek, Mar 01, 1990
gov. martinez will not speak at occidental chem. corp event, Apr 26, 1990
group request hearing on occidental chemical corp. mining plans, Apr 01, 1990
martinez's speech agenda draws protest, Apr 24, 1990
martinez will talk at occidental chemical corp. anniversary (picture), May 01, 1990
new wastewater discharge point sought by occidental sparks debate, Jun 01, 1990
environmentalist urge chiles, cabinet to reject occidental's plan, Sep 01, 1991
d.e.r. rule requiring phosphate mines to contain gypsum in lined areas to be considered by environmental regulationcommission, Jan 01, 1992
occidental in white springs again post of workers to be laid off, Sep 10, 1992
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