Hanford facilities tracer study report (315 Water Treatment Facility)

Technical Report · Fri Apr 14 04:00:00 EDT 1995

OSTI ID:71308

Ambalam, T ^[1]

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1. Kaiser Engineers Hanford Co., Richland, WA (United States)

This report presents the results and findings of a tracer study to determine contact time for the disinfection process of 315 Water Treatment Facility that supplies sanitary water for the 300 Area. The study utilized fluoride as the tracer and contact times were determined for two flow rates. Interpolation of data and short circuiting effects are also discussed. The 315 Water Treatment Facility supplies sanitary water for the 300 Area to various process and domestic users. The Surface Water Treatment Rule (SWTR), outlined in the 1986 Safe Drinking Water Act Amendments enacted by the EPA in 1989 and regulated by the Washington State Department of Health (DOH) in Section 246-290-600 of the Washington Administrative Code (WAC), stipulates filtration and disinfection requirements for public water systems under the direct influence of surface water. The SWTR disinfection guidelines require that each treatment system achieves predetermined inactivation ratios. The inactivation by disinfection is approximated with a measure called CxT, where C is the disinfectant residual concentration and T is the effective contact time of the water with the disinfectant. The CxT calculations for the Hanford water treatment plants were derived from the total volume of the contact basin(s). In the absence of empirical data to support CxT calculations, the DOH determined that the CxT values used in the monthly reports for the water treatment plants on the Hanford site were invalid and required the performance of a tracer study at each plant. In response to that determination, a tracer study will be performed to determine the actual contact times of the facilities for the CxT calculations.

• Research Organization: Westinghouse Hanford Co., Richland, WA (United States); Kaiser Engineers Hanford Co., Richland, WA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC06-87RL10930
• OSTI ID: 71308
• Report Number(s): WHC-SD-ER5480-ER--001; ON: DE95010870
• Country of Publication: United States
• Language: English

Related Subjects

05 NUCLEAR FUELS
COMPILED DATA
DRINKING WATER
HANFORD RESERVATION
PERFORMANCE
PURIFICATION
SODIUM FLUORIDES
SURFACE WATERS
TRACER TECHNIQUES
WATER
WATER TREATMENT PLANTS