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Wetland Delineation Report—Orono Substation Expansion Project June 16, 2010
<br /> Cowardin Wetland Classification System
<br /> Source: Wetlands and Deepwater Habitats of the United States(FWS/OBS Publication 79/31; Cowardin et. al. 1979).
<br /> S stem S mbol Subs stems S stern 5 ecific Classes S mbolo Sam le
<br /> Lacustrine L (1)Limnetic RB, UB,AB,OW, RS, US, EM, sYMeoac�v�x�►M�
<br /> 2 Littoral
<br /> Palustrine p None RB, UB,AB, US, ML, EM, SS, FO, OW SYSTEM
<br /> SUBSXSTEM
<br /> (1)Tidal Lower � c�nss �
<br /> (2)Lower Perennial t2Ei�2�
<br /> Riverine R (3)Upper Perennial RB, UB, SB,AB, RS, US, EM, OW SUBCLASS.WATER REGIME
<br /> (4) Intermittent UPLAND(NON-WETLAND)
<br /> 5 Unknown Perennial
<br /> Classes S ecial Modifiers Water Re imes �
<br /> Rock Bottom RB
<br /> Unconsolidated Bottom UB A—Temporarily flooded ,
<br /> B—Saturated R2�
<br /> Streambed SB b—beaver ILINEAR DEEPWATER HABITAT► _
<br /> A uatic Bed AB d—Partially drained/ditched C—Seasonally flooded
<br /> Rock Shore RS f—Farmed D—Seasonally flooded/well drained
<br /> Unconsolidated Shore US h—diked/impounded E—Seasonally saturated
<br /> Emer ent EM r—artificial substrate F—Semi-permanently flooded
<br /> O en Water OW s—spoil G—Intermittently exposed
<br /> H—Permanently flooded
<br /> Moss Lichen ML x—excavated a — Pnoierdy represen�s upland areas, but mav �ncwde
<br /> J—Intermittently flooded unclass�t�ed wetlandR sucn as man�modii�ed aress. non
<br /> Scrub Shrub SS K—AItIflClally flooded pnoto�denutiable areaa snd�w unmtentionel om�ssions
<br /> Forested FO
<br /> Circular 39 Wetland Classification System
<br /> Source: Wetlands of the United States(U.S. Fish and Wildlife Senrice Circular 39; Shaw and Fredine, 1971)
<br /> 'Type and Definition Approximate Cowardin Equivalents
<br /> T pe 1: Seasonall flooded basin PEMA, PFOA, PUS
<br /> T e 2: Wet meadow PEMB
<br /> T e 3: Shallow marsh PEMC, PEMF, PSSH, PUBA, PUBC
<br /> T e 4: Dee marsh L2ABF, L2EMF, L2EMG, L2US, PABF, PABG, PEMG, PEMH, PUBB, PUBF
<br /> T e 5: Shallow o en water L1, L2ABG, L2ABH, L2EMA, L2EM6, L2EMH, L2RS, L2U6, PABH, PUBG, PUBH
<br /> T e 6: Shrub swamp PSSA, PSSC, PSSF, PSSG, PSS1, PSSS, PSS6B
<br /> T e 7: Wooded swam PF01, PF05, PF066, PFOC, PFOF
<br /> T e 8: Bo PF02, PF04, PF076, PSS2, PSS3, PSS4, PSS76
<br /> Figure 1: Wetland Classification Systems
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