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ORAM v. 5.0 Field Form Quantitative Rating
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Site:Rater(s):Date:
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4
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GRAND TOTAL (max 100 pts)
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6
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Metric 1. Wetland Area (size)
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max 6 pts.subtotal
Select one size class and assign a score.
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>50 acres (>20.2ha) (6 pts)
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25 to <50 acres (10.1 to <20.2ha) (5 pts)
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10 to <25 acres (4 to <10.1ha) (4 pts)
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3 to <10 acres (1.2 to <4ha) (3 pts)
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0.3 to <3 acres (0.12 to <1.2ha) (2pts)
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0.1 to <0.3 acres (0.04 to <0.12ha) (1 pt)
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<0.1 acres (0.04ha) (0 pts)
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16
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Metric 2. Upland buffers and surrounding land use
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max 14 pts.subtotal
2a. Calculate average buffer width. Select only one and assign score. Do not double check.
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WIDE. Buffers average 50m (164ft) or more around wetland perimeter (7)
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MEDIUM. Buffers average 25m to <50m (82 to <164ft) around wetland perimeter (4)
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NARROW. Buffers average 10m to <25m (32ft to <82ft) around wetland perimeter (1)
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VERY NARROW. Buffers average <10m (<32ft) around wetland perimeter (0)
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2b. Intensity of surrounding land use. Select one or double check and average.
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VERY LOW. 2nd growth or older forest, prairie, savannah, wildlife area, etc. (7)
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LOW. Old field (>10 years), shrubland, young second growth forest. (5)
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MODERATELY HIGH. Residential, fenced pasture, park, conservation tillage, new fallow field. (3)
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HIGH. Urban, industrial, open pasture, row cropping, mining, construction. (1)
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28
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Metric 3. Hydrology
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max 30 pts.subtotal
3a. Sources of Water. Score all that apply.
3b. Connectivity. Score all that apply.
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High pH groundwater (5)
100 year floodplain (1)
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Other groundwater (3)
Between stream/lake and other human use (1)
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Precipitation (1)
Part of wetland/upland (e.g. forest), complex (1)
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Seasonal/Intermittent surface water (3)
Part of riparian or upland corridor (1)
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Perennial surface water (lake or stream) (5)
3d. Duration inundation/saturation. Score one or dbl check.
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3c. Maximum water depth. Select only one and assign score.
Semi- to permanently inundated/saturated (4)
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>0.7 (27.6in) (3)
Regularly inundated/saturated (3)
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0.4 to 0.7m (15.7 to 27.6in) (2)
Seasonally inundated (2)
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<0.4m (<15.7in) (1)
Seasonally saturated in upper 30cm (12in) (1)
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3e. Modifications to natural hydrologic regime. Score one or double check and average.
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None or none apparent (12)
Check all disturbances observed
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Recovered (7)ditch
point source (nonstormwater)
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Recovering (3)tilefilling/grading
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Recent or no recovery (1)
dike
road bed/RR track
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weirdredging
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stormwater inputother:
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47
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Metric 4. Habitat Alteration and Development
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max 20 pts.subtotal
4a. Substrate disturbance. Score one or double check and average.
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None or none apparent (4)
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Recovered (3)
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Recovering (2)
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Recent or no recovery (1)
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4b. Habitat development. Select only one and assign score.
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Excellent (7)
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Very good (6)
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Good (5)
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Moderately good (4)
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Fair (3)
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Poor to fair (2)
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Poor (1)
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4c. Habitat alteration. Score one or double check and average.
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None or none apparent (9)
Check all disturbances observed
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Recovered (6)mowing
shrub/sapling removal
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Recovering (3)grazing
herbaceous/aquatic bed removal
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Recent or no recovery (1)
clearcuttingsedimentation
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selective cuttingdredging
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woody debris removal
farming
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toxic pollutants
nutrient enrichment
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70
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Metric 5. Special Wetlands
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max 10 pts.subtotal
Check all that apply and score as indicated.
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Bog (10)
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Fen (10)
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Old growth forest (10)
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Mature forested wetland (5)
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Lake Erie coastal/tributary wetland-unrestricted hydrology (10)
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Lake Erie coastal/tributary wetland-restricted hydrology (5)
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Lake Plain Sand Prairies (Oak Openings) (10)
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Relict Wet Praires (10)
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Known occurrence state/federal threatened or endangered species (10)
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Significant migratory songbird/water fowl habitat or usage (10)
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Category 1 Wetland. See Question 1 Qualitative Rating (-10)
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84
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Metric 6. Plant communities, interspersion, microtopography
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max 20 pts.subtotal
6a. Wetland Vegetation Communities.
Vegetation Community Cover Scale
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Score all present using 0 to 3 scale.
0
Absent or comprises <0.1ha (0.2471 acres) contiguous area
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Aquatic bed1
Present and either comprises small part of wetland's
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Emergent
vegetation and is of moderate quality, or comprises a
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Shrub
significant part but is of low quality
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Forest2
Present and either comprises significant part of wetland's
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Mudflats
vegetation and is of moderate quality or comprises a small
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Open water
part and is of high quality
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Other:3
Present and comprises significant part, or more, of wetland's
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vegetation and is of high quality
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6b. Horizontal (plan view) Interspersion
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Select only one.
Narrative Description of Vegetation Quality
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High (5)low
Low spp diversity and/or predominance of nonnative or
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Moderately high (4)
disturbance tolerant native species
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Moderate (3)mod
Native spp are dominant component of the vegetation,
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Moderately low (2)
although nonnative and/or disturbance tolerant native spp