The predicted impacts to the groundwater and Columbia River from ammoniated water discharges to the 216-A-36B crib

Technical Report · Tue Mar 01 04:00:00 EST 1988

DOI:https://doi.org/10.2172/5195541· OSTI ID:5195541

Buelt, J L; Conbere, W; Freshley, M D; Hicks, R J; Kuhn, W L; Lamar, D A; Serne, R J; Smoot, J L

Impact from past and potential future discharges of ammoniated water to the 216-A-36B crib have on groundwater and river concentrations of hazardous chemical constitutents are studied. Until August 1987, the 216-A-36B crib, located in the 200-East Area of the Hanford Site, accepted ammoniated water discharges. Although this study addresses known hazardous chemical constituents associated with such discharges, the primary concern is the discharge of NH/sub 4/OH because of its microbiological conversion to NO/sub 2//sup /minus// and NO/sub 3//sup /minus//. As a result of fuel decladding operations, material balance calculations indicate that NH/sub 4/OH has been discharged to the 216-A-36B crib in amounts that exceed reportable quantities under the Comprehensive Environmental Response, Compensation and Liability Act of 1980. Although flow to the crib is relatively constant, the estimated NH/sub 4/OH discharge varies from negligible to a maximum of 10,000 g-molesh. Because these discharges are intermittent, the concentration delivered to the groundwater is a function of soil sorption, microbiological conversion rates of NH/sub 4//sup +/ to NO/sub 2//sup /minus// and NO/sub 3//sup /minus//, and groundwater dispersion. This report provides results based on the assumptions of maximum, nominal, and discountinued NH/sub 4/OH discharges to the crib. Consequently, the results show maximum and realistic estimates of NH/sub 4//sup +/, NO/sub 2//sup /minus// and NO/sub 3//sup /minus// concentrations in the groundwater.

• Research Organization: Pacific Northwest Lab., Richland, WA (USA)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 5195541
• Report Number(s): PNL-6463; ON: TI88008073
• Country of Publication: United States
• Language: English

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AMMONIUM COMPOUNDS
AMMONIUM HYDROXIDES
CHALCOGENIDES
CHEMICAL EFFLUENTS
COLUMBIA RIVER
ENVIRONMENTAL IMPACTS
GROUND WATER
HANFORD RESERVATION
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HYDROXIDES
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SURFACE WATERS
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