WETLAND DETERMINATION DATA FORM - Region Project/Site: Susitna-Watana Hydroelectric Project Borough/City: Matanuska-Susitna Borough Sampling Date: 07-Aug-12 Applicant/Owner: Alaska Energy Authority Sampling Point: SW12_T36_02 Investigator(s): SLI, KMK Landform (hillside, terrace, hummocks etc.): Ridgetop Local relief (concave, convex, none): convex Slope: % / 3.7 ° Elevation: 816 Subregion : Southcentral Alaska Lat.:62.7658483279 Long.: -149.63345576 Datum: NAD83 Soil Map Unit Name: NWI classification: Upland Are climatic/hydrologic conditions on the site typical for this time of year?Yes No (If no, explain in Remarks.) Are Vegetation , Soil , or Hydrology significantly disturbed? Are "Normal Circumstances" present? Yes No Are Vegetation , Soil , or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS - Attach site map showing sampling point locations, transects, important features, etc.

Hydrophytic Vegetation Present? Yes No Is the Sampled Area Hydric Soil Present? Yes No within a Wetland? Yes No Wetland Hydrology Present? Yes No Remarks: ridgeline site, very windy. ca 40% cover by crustose and fruticose .

VEGETATION -Use scientific names of . List all species in the plot. Dominance Test worksheet: Absolute Dominant Indicator Tree Stratum % Cover Species? Status Number of Dominant Species That are OBL, FACW, or FAC: 1 (A) 1. 0 Total Number of Dominant 2. 0 Species Across All Strata: 4 (B) 3. 0 Percent of dominant Species 4. 0 That Are OBL, FACW, or FAC: 25.0% (A/B) 5. 0 Prevalence Index worksheet: Total Cover: 0 Total % Cover of: Multiply by: 50% of Total Cover: 20% of Total Cover: Sapling/Shrub Stratum 0 0 OBL Species0 x 1 = 0 1. Dryas ajanensis 10 UPL FACW Species0 x 2 = 0 2. Vaccinium uliginosum 5 FAC FAC Species16.2 x 3 = 48.60 3. Salix arctica 2 FACU FACU Species6 x 4 = 24 4. 1 UPL UPL Species16.3 x 5 = 81.50 5. Betula glandulosa 7 FAC Column Totals: 38.5 (A) 154.1 (B) 6. Arctous alpinus 2 FACU Prevalence Index = B/A = 4.003 7. Vaccinium vitis-idaea 1 FAC 8. Empetrum nigrum 3 FAC Hydrophytic Vegetation Indicators: 9. 0 Dominance Test is > 50% 10. 0 Prevalence Index is ≤3.0

Total Cover: 31 Morphological Adaptations 1 (Provide supporting data in Herb Stratum 50% of Total Cover: 15.5 20% of Total Cover: 6.2 Remarks or on a separate sheet) 1 1. Anthoxanthum monticola ssp. alpinum 1 UPL Problematic Hydrophytic Vegetation (Explain) 1 2. Campanula lasiocarpa 0.1 UPL Indicators of hydric soil and wetland hydrology must 3. norvegica 2 FACU be present, unless disturbed or problematic. 4. microchaeta 0.1 FAC Plot size (radius, or length x width) 10m 5. Antennaria monocephala 1 UPL % Cover of Wetland Bryophytes 6. Silene acaulis 0.1 UPL (Where applicable) 2 UPL 7. Arnica frigida % Bare Ground 30 0.1 UPL 8. Antennaria monocephala Total Cover of Bryophytes 5 9. Cardamine bellidifolia 0.1 FAC 10. Festuca brachyphylla 1 UPL Hydrophytic Total Cover: 7.5 Vegetation 50% of Total Cover: 3.75 20% of Total Cover: 1.5 Present? Yes No

Remarks: betgla <20cm tall, prostrate. trace anemone (no flower). arnlou in hulten as arnica trace camlas, carmic, silaca, carbel, potentilla villosa

US Army Corps of Engineers Alaska Version 2.0 SOIL Sampling Point: SW12_T36_02

Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators) Matrix Redox Features Depth (inches) Color (moist) % Color (moist) % Type 1 Loc 2 Texture Remarks

1 Type: C=Concentration. D=Depletion. RM=Reduced Matrix 2 Location: PL=Pore Lining. RC=Root Channel. M=Matrix

3 Hydric Soil Indicators: Indicators for Problematic Hydric Soils: 4 Histosol or Histel (A1) Alaska Color Change (TA4) Alaska Gleyed Without Hue 5Y or Redder Underlying Layer Histic Epipedon (A2) Alaska Alpine swales (TA5) Hydrogen Sulfide (A4) Alaska Redox With 2.5Y Hue Other (Explain in Remarks) Thick Dark Surface (A12) 3 One indicator of hydrophytic vegetation, one primary indicator of wetland hydrology, Alaska Gleyed (A13) and an appropriate landscape position must be present Alaska Redox (A14) 4 Give details of color change in Remarks Alaska Gleyed Pores (A15)

Restrictive Layer (if present): Type: Hydric Soil Present? Yes No Depth (inches):

Remarks: no hydric soil indicators. fractured bedrock at surface, no soil pit dug.

HYDROLOGY Wetland Hydrology Indicators: Secondary Indicators (two or more are required) Primary Indicators (any one is sufficient) Water Stained Leaves (B9) Surface Water (A1) Inundation Visible on Aerial Imagery (B7) Drainage Patterns (B10) High Water Table (A2) Sparsely Vegetated Concave Surface (B8) Oxidized Rhizospheres along Living Roots (C3) Saturation (A3) Marl Deposits (B15) Presence of Reduced Iron (C4) Water Marks (B1) Hydrogen Sulfide Odor (C1) Salt Deposits (C5) Sediment Deposits (B2) DrySeason Water Table (C2) Stunted or Stressed Plants (D1) Drift Deposits (B3) Other (Explain in Remarks) Geomorphic Position (D2) Algal Mat or Crust (B4) Shallow Aquitard (D3) Iron Deposits (B5) Microtopographic Relief (D4) Surface Soil Cracks (B6) FACneutral Test (D5) Field Observations: Surface Water Present? Yes No Depth (inches):

Water Table Present? Yes No Depth (inches): Wetland Hydrology Present? Yes No Saturation Present? Yes No (includes capillary fringe) Depth (inches): Describe Recorded Data (stream gauge, monitor well, aerial photos, previous inspection) if available:

Remarks: no wetland hydrology indicators

U.S. Army Corps of Engineers Alaska Version 2.0