Lead was detected in a surface soil sample collected from bore hole BH$-10-02$ at a concentration of $5,540$ mg$/$kg$.1\mathrm{.}6$ kg of soil was collected in a core $16$ in length and $2$ in diameter. The sample has a volumetric moisture content of $0\mathrm{.}6.$ We can assume that the concentration of lead in the air phase is negligible. If we assume equilibrium partitioning, what is the total mass of lead in the sample? $($R lead is $15060,$ volumetric moisture is $9\mathrm{.}4$ ft$/$d$,$ Kd is $900$ L$/$kg$)$