Valve Setting† Flow Rate (gal h-1) ‡ Sample Number Daily Volume (gal) § Estimated HRT¶ (d) 50   514   20   1591± 643   1.9 60 609 14 2521 ± 634 1.2 75 1196 10 4159 ± 1681 0.7 †Percentage of 100% open ‡gal h-1 x3.78 = L h-1 §gal x 3.78 = L, reported as mean ± standard deviation ¶HRT = hydraulic retention time

Table 2: Estimated flow rate and hydraulic retention time for each valve setting in the constructed wetland.