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  1. ...dry cleaners use earth friendly chemicals instead of Perchlorothylene ( PCE ). If used appropriately... and getting into soil and groundwater where it's very difficult to cleanup...

    3 Answers · Home & Garden · 13/07/2008

  2. ...? The Marine Corps did not know that the chemicals were coming from the groundwater until well sampling began for another environmental clean-up program in late...

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

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