Laserfiche WebLink
Table 37.2 Standard Wetland Compensation Ratios <br />Category and <br />Re- <br />Re -Establishment or <br />Re -Establishment <br />Type of <br />Establishment <br />Rehabilitation <br />Creation (R/C) and <br />or Creation (R/C) <br />Enhancement <br />Wetland <br />or Creation <br />Rehabilitation (RH) <br />and Enhancement <br />Only <br />(E) <br />Category I <br />Forested <br />6:1 <br />12:1 <br />1:1 R/C and 10:1 RH <br />1:1 R/C and 20:1 E <br />24:1 <br />Irreplaceable — <br />6:1 <br />R/C not considered <br />R/C not considered <br />Bog <br />Avoidance <br />Rehabilitation <br />possible <br />possible <br />Case-by-case <br />Required <br />of a Bo <br />Irreplaceable — <br />6:1 <br />R/C not considered <br />Natural <br />Avoidance <br />Rehabilitation <br />possible <br />R/C not considered <br />Case-by-case <br />Heritage <br />Required <br />of a Natural <br />possible <br />Herita a Site <br />Others <br />4:1 <br />8:1 <br />1:1 R/C and 6:1 RH <br />1:1 R/C and 12:1 E <br />16:1 <br />Category II <br />Forested <br />4:1 <br />8:1 <br />1:1 R/C and 4:1 RH <br />1:1 R/C and 6:1 E <br />16:1 <br />Others <br />3:1 <br />6:1 <br />1:1 R/C and 4:1 RH <br />1:1 R/C and 8:1 E <br />12:1 <br />Category III <br />2:1 <br />4:1 <br />1:1 R/C and 2:1 RH <br />1:1 R/C and 2:1 E <br />8:1 <br />Category IV <br />1.5:1 <br />3:1 <br />1:1 R/C and 1:1 RH <br />1:1 R/C and 2:1 E <br />6:1 <br />Creation = The manipulation of the physical, chemical, or biological characteristics present to develop a wetland on <br />an upland or deepwater site, where a wetland did not previously exist. Activities typically involve excavation of <br />upland soils to elevation that will produce a wetland hydroperiod, create hydric soils, and support the growth of <br />hydrophytic plant species. Establishment results in a gain in wetland acres. Activities typically involve excavation <br />of upland soils to elevations that will produce a wetland hydroperiod, create hydric soils, and support the growth of <br />hydrophytic plant species. <br />Re -Establishment = The manipulation of the physical, chemical, or biological characteristics of a site with the goal <br />of returning natural or historic functions to a former wetland. Activities could include removing fill material, <br />plugging ditches, or breaking drain tiles. Re-establishment results in a gain in wetland acres. Activities could <br />include removing fill material, plugging ditches, or breaking drain tiles. Activities could involve breaching a dike to <br />reconnect wetlands to a floodplain or return tidal influence to a wetland. <br />Rehabilitation = The manipulation of the physical, chemical, or biological characteristics of a site with the goal of <br />repairing natural or historic function of a degraded wetland. Activities could involve breaching a dike or <br />reconnecting wetland to a floodplain or returning tidal influence to a wetland. Rehabilitation results in a gain in <br />wetland function but does not result in a gain in wetland acres. <br />Enhancement = The manipulation of the physical, chemical or biological characteristics of a wetland site to <br />heighten, intensify or improve functions or to change the growth stage or composition of the vegetation present. <br />Enhancement is undertaken for specified purposes such as water quality improvement, flood water retention or <br />habitat. Activities typically consist of planting vegetation, controlling nonnative or invasive species, modifying the <br />site elevation or the proportion of open water to influence hydroperiods, or some combination of these. <br />Enhancement results in a change in some wetland functions and can lead to a decline in other wetland function, but <br />does not result in a gain in wetland acres. Activities typically consist of planting vegetation, controlling non-native <br />or invasive species, modifying site elevations or the proportion of open water to influence hydroperiods, or some <br />combination of these activities. <br />30 <br />