Vertical coordinate information is referenced to the North American Vertical Datum of 1988 (NAVD 88). Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83). Altitude, as used in this report, refers to distance above the vertical datum.
The Pactfic Northwest Laboratory ts conducting the Solid Waste Technology Support Program (SWTSP)for Westinghouse Hanford Company(WHC). Task E ts the Container Corrosion Study Portion of the SWTSPthat will perform testing to provide defensible data on the corrosion of low-carbon steel, as used in drums to contain chemical and radioactive wastes at the Hanford Stte. A second objective of Task E is to provide and test practical alternative materials that have higher corrosion resistance than low-carbon steel. The scope of work for fiscal year (FY) 1993 included initial testing of mild steel specimens buried in Hanford soils or exposed to atmospheric corrosion tn metal storage sheds. Durlng FY 1993, progress was made tn three areas of Task E. Flrst, exposure of test materials began at the Soil Corrosion Test Site where low-carbon steel specimens were placed tn the sotl in five test shafts at depths of 9 m (30 ft). Second, the corrosion measurement of low-carbon steel in the soil of two solid waste trenches continued. The total exposure time is-500days. Third, an atmospheric corrosion test of low-carbon steel was initiated in a metal shed (Building 2401-W) In the 200 West Area. This annual report describes the Task E efforts and provides a current status.
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