Interim data quality objectives for waste pretreatment and vitrification. Revision 1

Kupfer, M.J.; Conner, J.M.; Kirkbride, Rebecca; Mobley, J.R.

doi:10.2172/10189583

Cited by 6 publications

(10 citation statements)

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“…Rotary mode and push mode,core samples were taken to satisfy the requirements of the Tank Safety Screening Data Quality Objective (Dukelow et al 1995) (Simpson and McCain 1995), the lnterim Data Quality Objectives for Waste Pretreatment and Vitrification (Kupfer et al 1994), and the Test Plan for Samples from Hanford Waste Tanks 241- BY-103, BY-104, BY-105, BY-106, BY-108, BY-110, TY-103, U-105, U-107, U-108, and U-109 (Meacham 1995). The sampling and analyses were performed in accordance with the Tank 241-BY-110 Rotary Mode Core Sampling and Analysis Plan (Schreiber 1996a).…”

Section: Tank Sampling Overviewmentioning

confidence: 99%

“…The tank was sampled in 1995 to satisfy the requirements of the following documents: the Tank Safety Screening Data Quality Objective (Dukelow et al 1995), the Data Requirements for the Ferrocyanide Safety Issue Developed through the Data Quality Objectives Process BY-104, BY-105, BY-108, BY-110, TY-103, U-105, U-107, U-108, and U-109 (Meacham 1995), the Historical Model Evaluation Data Requirements (Simpson and McCain 1995), and the lnterim Data Quality Objectives for Waste Pretreament and Vitrification (Kupfer et al 1994). Tank 241-BY-110 is on the Ferrocyanide Watch List.…”

Section: Introductionmentioning

confidence: 99%

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Tank characterization report for single-shell tank 241-BY-110

Schreiber¹

1996

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Papa 1 Of 1 -1 EDT 6 1 7 5 4 1 - TO:(Receiving Organization) From: ( O r i g i n a t i n g Organization) D i s t r i b u t i onData Assessment and I n t e r p r e t a t i o n . P r o i . l P r o s . / D e D t . / D i v . :6. Design Authority/ Design AgentlCog. O r i g i n a t o r Remarks:This document i s being released i n t o t h e supporting document system f o r r e t r i evabi 1 i t y purposes -96-020 (WHC 1995b). As a result of the analyses addressed by this report, the tank meets the "safe" category based on the decision limits of the ferrocyanide data quality objective (DQO) (Schreiber 1995(Schreiber , 1996b. However, tank 241-BY-110 meets the "conditionally safe" category as defined by the organic DQO. 1994), the Data Requirements for the Ferrocyanide Safety Issue Developed through the Data Quality Objectives Process (Meacham et al. 1994), the Test Plan for Samples From HanfordWaste , TY-103, U-105, U-107, U-108, and U-109 (Meacham 1995), the Data Quality Objective to Support (Turner et al. 1995), and the Historical ES-4 WHC-SD-WM-ER-591 Rev. 0 (Simpson and McCain 1995). Analyses for all cores included energetics, moisture content, total alpha activity, density, metals, cyanide, anions, total organic carbon, and an organic screen analysis (Schreiber 1996a). Resolution of the Organic Complexant Safety Issue Model Evaluation Data RequirementsTotal alpha activity results for all cores were well below the safety screening limit of 29.7 pCi/g; the highest average subsegment result was 0.238 pCi/g, indicating the potential for a criticality event is low.Thermogravimetric analysis showed that the tank is drier than predicted by Agnew et al. Before samples were removed from the tank, combustible gas meter readings were taken from inside the vapor space as required by the safety screening DQO (Dukelow et al. 1995).No result was greater than one percent of the lower flamability limit, satisfying the DQO requirement that the results be less than 25 percent of the lower flammability limit. These measurements are consistent with the findings of a previous headspace sampling effort . However, measurements in the drill string indicate that radiologically generated gases accumulate in the waste. The gases are rapidly dispersed when encountered during sampling. Present operational measures (application of flammable gas controls during sampling) appear to be prudent and appropriate when performing intrusive in-tank activities, because H2 concentrations of 24 percent have been observed in the drill string vapor space.Remaining material from the sampling event has been set aside for pretreatment studies as identified in the pretreatment DQO.Table ES-2 shows concentration and inventory estimates for the most prevalent analytes and analytes of concern. These concentrations are based on the 1995 analytical results.

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Section: Tank Sampling Overviewmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Tank characterization report for single-shell tank 241-BY-110

Schreiber¹

1996

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“…Two core samples were obtained, one in 1994 and one in 1995, in accordance with the following data quality objectives: Tank Safety Screening Data Qualily Objective (Kupfer et al 1994). Grab samples were obtained in 1993 as directed in the Organic Layer Sampling for SST 241-C-103 Background, Data Quality Objectives, and Analytical Plm ( W d et al 1993) …”

Section: Tank Sampling Overviewmentioning

confidence: 99%

“…The tank 241-C-103 organic and aqueous layers were grab sampled in 1!993 in accordance with the requirements listed in the Organic Layer Sampling for SST 241-C-103 Background, Data Quality Objectives, and Analytical Plan (Wood et al 1993). The tank was sampled again in 1994 and 1995 to satisfy the requirements of the Tank Safety Sc,reening Data Quality Objective , the Data Quality Objective to Support Resolution of the Organic Fuel Rich Tank Safety Issue , and the Zmarim Data Quality Objectives for Ware Pretrearment and vitrification (Kupfer et al 1994). …”

Section: Introductionmentioning

confidence: 99%

Tank characterization report for single-shell tank 241-C-103

Winters¹

1996

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“…This list is composed of 20 Ferrocyanide Watch List tanks, 9 Organic Watch List tanks (one of which is also on the Ferrocyanide Watch List), and 8 tanks with a history of vapor incidents. (Kupfer et al 1994), describes the sampling and analytical requirements to support the TWRS technical strategy by identifying the chemical and physical composition of the waste in the tank. In addition, the DQO works to guide development efforts to define waste pretreatment processes, which will in turn define high-level and lowlevel waste feed to vitrification processes.…”

Section: Safety Screening Data Quality Objectivesmentioning

confidence: 99%

Tank 241-TY-106 Tank Characterization Plan

Schreiber¹

1995

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Interim data quality objectives for waste pretreatment and vitrification. Revision 1

Cited by 6 publications

References 0 publications

Tank characterization report for single-shell tank 241-BY-110

Tank characterization report for single-shell tank 241-BY-110

Tank characterization report for single-shell tank 241-C-103

Tank 241-TY-106 Tank Characterization Plan

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