The concentration of boron in the ash fill near Monitoring Well 8 has exhibited decreasing fluctuations through time. Concentrations of arsenic and molybdenum have also shown similar trends. These chemical species may be approaching equilibrium.

For several years, the concentration of chromium in the ash fill near Monitoring Well 8 remained low, but in 2001 the concentration of chromium began to exhibit large fluctuations. Similarly, nickel shows no evidence of approaching equilibrium.

With the exception of one anomalous value, the concentration of molybdenum in the ash fill near Monitoring Well 9 has fluctuated within a constant range, indicating that molybdenum has been in quasi-equilibrium since the completion of reclamation.

The concentration of nickel in the ash fill near Monitoring Well 9 has exhibited large fluctuations and a generally increasing trend through time. Arsenic, boron, and cadmium also show large fluctuations that indicate equilibria have not been reached.