Submerged Gravel Wetland

DA = < 5 acres

Maintenance = 4.0 Treatment

Rev

Cpv

WQv

Qp

Cost =

x

?

Comm. Accept.=

4.0

3.0

* limited pollutant removal data

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A submerged gravel wetland provides water quality storage and possibly overbank flood protection. It has high maintenance requirements and low community acceptance. The submerged gravel wetland removes 83% of TSS, 64% of TP, and 19% of TN, although these numbers are based on limited data.