Results of Preliminary Hg Speciation Testing on Tank 22 and Waste Concentrate Hold Tank (WCHT) Material

Solvent hold tank sample results for MCU-16-1317-1318-1319. September 2016 monthly sample

“…Organo-mercury compounds were recently detected in Tank 22H. 9 For 200 gallons of solvent (757.1 L) and assuming a density of 0.827 g/mL, the solvent could contain a total of 16 ± 3 g of mercury (based on the average of the two measurements). A comparison of this measurement with previous months confirms a positive trend in the mercury concentration in the solvent (data is shown in Fig.…”

Solvent Hold Tank Sample Results for MCU-16-1247-1248-1249: August 2016 Monthly Sample

“…Organo-mercury compounds were recently detected in Tank 22H. 8 For 200 gallons of solvent (757.1 L) and assuming a density of 0.822 g/mL, the solvent could contain a total of 20 ± 4 g of mercury (based on the CV-AA data). A comparison of this measurement with previous month confirms a positive trend in the mercury concentration in the solvent (data is shown in Fig.…”

Solvent Hold Tank Sample Results for MCU-16-348-349-350: March 2016 Monthly Sample

“…Organo-mercury compounds were recently detected in Tank 22H. 7 For 200 gallons of solvent (757.1 L) and assuming a density of 0.8291 g/mL, the solvent could contain a total of 14 ± 2 g of mercury. A comparison of this measurement with previous month confirms a positive trend in the mercury concentration in the solvent (data is shown in Fig.…”