The dynamics of the EC followed a similar pattern as of DOC, where a
decreasing trend was monitored in each storm with a peak for the first
hour (Fig. 2C). About 80–84% of the total salts leached (19–24 mS/cm)
were eluted in first three storms (77 cm leachate flux). After three
storms, leachate EC approached the stormwater influent EC. Similar
trends were observed for leachate EC from composts of different ages
and feedstocks (Xia et al., 2007; Mullane et al., 2015), where EC values
decreased below 1 mS/cm after 180 mm and 500 mm leachate flux,
respectively.