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Condit Dam Removal Condit Dam Removal - Access Washington

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<strong>Condit</strong> <strong>Dam</strong> Hydroelectric Project<br />

Final Supplemental EIS<br />

Acreage by Cowardin<br />

Class<br />

Table 4.4-1<br />

Summary of Wetland Areas, Classes, and Ratings<br />

Acreage by Hydrogeomorphic<br />

Class a<br />

Ecology Rating Category for<br />

Eastern <strong>Washington</strong><br />

Based on<br />

Based on Special<br />

Functions Characteristics<br />

Total 1.0 0.5 0.5 0.5 0.5<br />

a. Hydrogeomorphic class highlighted in bold used for Ecology Rating.<br />

b. PEM - palustrine emergent wetland<br />

c. PFO - palustrine forested wetland<br />

d. PSS - palustrine scrub/shrub wetland<br />

e. Rating Category for WSDOT Functional Assessment added for clarification; defined by number of function categories<br />

provided: High = 11-14; Moderate = 6-10; Low = 0-5<br />

f. 0.0 indicates where wetlands were delineated but were less than 0.05 acre, which is rounded to zero.<br />

Source: CH2M Hill (2003) with wetland 26 added by URS Corporation.<br />

WSDOT Functional Assessment<br />

Functional Rating<br />

Assessment Category<br />

Description (H/M/L) e<br />

Wetland Total<br />

Lake<br />

ID Acreage PEM b PFO c PSS d Fringe Riverine Slope<br />

Northwestern Lake Reservoir<br />

2 1.6 1.0 0.6 1.6 III N/A Likely High<br />

3 1.3 0.8 0.5 0.8 0.5 III N/A Likely High<br />

5 0.4 0.4 0.0 f 0.0 f 0.4 II N/A Likely High<br />

6A 0.2 0.2 0.2 III N/A Not Likely Low<br />

6B 0.3 0.3 0.3 III II Likely Moderate<br />

7 0.1 0.1 0.1 IV N/A Not Likely Moderate<br />

8 0.1 0.0 f 0.1 0.0 f 0.1 II II Likely High<br />

9 0.8 0.8 0.8 IV N/A Not Likely Moderate<br />

10 0.1 0.0 f 0.1 0.0 f 0.1 II II Likely High<br />

11 0.2 0.2 0.2 IV N/A Not Likely Moderate<br />

12 0.4 0.1 0.3 0.1 0.3 III N/A Likely High<br />

17 0.0 f 0.0 f 0.0 f IV N/A Likely Moderate<br />

18 0.0 f 0.0 f 0.0 f IV N/A Not Likely Moderate<br />

19 0.2 0.2 0.2 IV N/A Not Likely Moderate<br />

20 0.0 f 0.0 f 0.0 f IV N/A Not Likely Moderate<br />

21 0.0 f 0.0 f 0.0 f III N/A Not Likely Low<br />

23 0.0 f 0.0 f 0.0 f IV N/A Not Likely Moderate<br />

24 0.0 f 0.0 f 0.0 f IV N/A Not Likely Moderate<br />

25 0.0 f 0.0 f 0.0 f IV N/A Not Likely Moderate<br />

26 0.0 f 0.0 f 0.0 f IV N/A Not Likely Low<br />

Total 5.7 3.6 2.1 0 3.8 0.9 1.0<br />

Downstream of <strong>Condit</strong> <strong>Dam</strong><br />

15 0.5 0.5 0.5 III N/A Likely High<br />

16 0.3 0.3 0.3 IV N/A Likely Moderate<br />

22 0.2 0.2 0.2 IV N/A Likely Moderate<br />

4.4-2

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