Metals manufacturer located near Johnson Creek failed to monitor its stormwater discharges for two highly toxic substances

TRIBUNE FILE PHOTO  - This part of Johnson Creek is located downstream from Precision Castparts' stormwater discharge pipe into the creek. The Oregon Department of Environmental Quality has issued a $9,829 civil penalty to a unit of Precision Castparts Corp. for failing to monitor polychlorinated biphenyls (PCBs) and polynuclear aromatic hydrocarbons (PAHs) in its stormwater discharges.

The violations occurred two times at seven sampling points at the metals company's main plant in Southeast Portland during the 2015-16 year, DEQ reported Wednesday.

That plant is located at 4600 S.E. Harney Drive, near Johnson Creek.

During 2015 and 2016, PCC Structurals, a unit of Precision Castparts, designed and installed a stormwater treatment system to comply with permit requirements and to remove contaminants of concern, including PCBs, under a voluntary cleanup program, DEQ says.

To read past Portland Tribune coverage of Precision Castparts' discharges of PCBs and other toxics into Johnson Creek and the surrounding environment, see:

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