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  1. ...contamination first found? How long did it last? The chemicals trichloroethylene (TCE) and tetrachloroethylene ( PCE , also known as perchloroethylene or "PERC") were ...

    3 Answers · Politics & Government · 09/08/2008

  2. ...? The Marine Corps did not know that the chemicals were coming from the groundwater until well sampling began...

    6 Answers · Politics & Government · 13/06/2008

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