An agreement has been announced for pollution testing at a site along the heavily contaminated Duwamish River.

The state Ecology Department announced the deal with Crowley Maritime Corp. on Tuesday, Aug. 11, which calls for soil, groundwater and sediment tests.

It is the first step toward long-term cleanup of the 16-acre site near the Georgetown neighborhood.

Beginning in the 1920s, the site was been used for manufacturing pipes, chains, lumber, treated poles, aluminum windows and other industrial parts.

Investigations since the late 1980s have shown traces of arsenic, copper, polynuclear aromatic hydrocarbons and polychlorinated biphenyls.

The work is part of a state, federal and local effort to remove pollution along the lower Duwamish Waterway.