Dunkirk Gas Corporation

Dunkirk Natural Gas Pipeline Project

Appendix D

Wetland Delineation Report

WETLAND DELINEATION REPORT

Dunkirk Natural Gas Pipeline Project

Dunkirk to Pomfret, Chautauqua County, New York

Prepared for:

Dunkirk Gas Corporation 211 Carnegie Center Princeton, New Jersey 08540

Prepared by:

2801 Wehrle Dr., Suite 8 Williamsville, New York 14221

July 2014 Dunkirk Natural Gas Pipeline Project Wetland Delineation Report

TABLE OF CONTENTS

1.0 INTRODUCTION...... 1-1 2.0 PROJECT OVERVIEW ...... 2-1 2.1 General Site Description and Ecological Setting ...... 2-1 3.0 WETLAND AND WATERBODY FIELD SURVEY METHODOLOGY ...... 3-1 3.1 Evidence of Wetland Hydrology ...... 3-2 3.2 Presence of Hydric Soils ...... 3-2 3.3 Predominance of Hydrophytic Vegetation ...... 3-6 3.4 Wetland Delineation ...... 3-7 3.5 Waterbody Assessment ...... 3-7 3.6 Results Reporting ...... 3-8 4.0 RESULTS ...... 4-1 4.1 Wetland Cover Types ...... 4-2 4.1.1 Palustrine Emergent Wetland ...... 4-2 4.1.2 Palustrine Scrub-Shrub Wetland ...... 4-4 4.1.3 Palustrine Forested Wetland ...... 4-5 4.2 Waterbodies ...... 4-13 5.0 REFERENCES ...... 5-1

LIST OF FIGURES

Figure 1: Project Location Map ...... 1-2 Figure 2: NWI and NYSDEC Wetlands ...... 3-3

LIST OF TABLES

Table 1: Soils within Project Area ...... 3-4 Table 2: Wetlands within Project Area Right-Of-Way ...... 4-7 Table 3: Streams within Project Area Right-Of-Way ...... 4-20

APPENDICES

Appendix A: Resource Maps Appendix B: U.S. Army Corps of Engineers Wetland Determination Data Forms and Stream Notes Appendix C: Resource Photo Log

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1.0 INTRODUCTION

On behalf of the Dunkirk Gas Corporation (“Dunkirk”), TRC has prepared this wetland delineation report for the Dunkirk Natural Gas Pipeline Project (the “Project”) to be located in the City of Dunkirk and Towns of Dunkirk and Pomfret, Chautauqua County, New York. The Project includes the construction of approximately 11.3-miles of new 16-inch buried pipeline and associated facilities to transport natural gas from the Tennessee Gas Transmission Pipeline Mainline in the Town of Pomfret to the Dunkirk Generating Station (the “Station”) in the City of Dunkirk (Figure 1). The Project also involves the construction of a new metering, a new regulation station and two mainline valves along the pipeline right-of-way. The natural gas supply will allow the Station to use natural gas as a fuel for generating electricity. This report has been prepared to support the Project’s Certification Review Process for Major Electric and Fuel Gas Transmission Facilities under Article VII of the New York Public Service Law and the Project’s review under Section 404 and 401 of the Federal Clean Water Act.

TRC performed field surveys to identify and locate wetlands and waterways within a survey corridor surrounding the proposed limits of disturbance, which included the proposed pipeline right-of-way (“ROW”), additional temporary work spaces (“ATWS”), proposed access roads and other associated facilities, as well as the area immediately adjacent to the limits of disturbance. The delineations were conducted in accordance with the United States Army Corps of Engineers (“USACE”) wetland delineation criteria and methodology and the New York State Freshwater Wetlands Delineation Manual (Browne et al. 1995). This report describes the wetland delineation methodology implemented and the findings of the wetland field surveys conducted for the Project corridor from May 5 through May 9, 2014, July 9 through July 11, and July 22, 2014.

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Figure 1: Project Location Map

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2.0 PROJECT OVERVIEW

The Dunkirk Natural Gas Pipeline Project is located in Western New York State, in Chautauqua County and traverses through portions of the City of Dunkirk and Towns of Dunkirk and Pomfret. The new natural gas pipeline line will be located in newly acquired ROW; however, approximately 7.4 miles of the 11.3 mile route is adjacent to and parallel to an existing railroad rights-of-way or an existing overhead transmission line corridor. The objective of the Project is to transport natural gas from the existing Tennessee Gas Transmission Mainline Pipeline, a major natural gas transmission pipeline that passes through Chautauqua County, to the Dunkirk Generation Station.

2.1 General Site Description and Ecological Setting

The proposed pipeline will cross two Ecological Regions of the United States: the Eastern Broadleaf Forest (“Continental”) Province Ecological Region (“Eastern Broadleaf Ecological Region”) and the Lauretian Mixed Forest Province Ecological Region (Bailey et al 1994). Ecological Regions are large areas of similar climate where ecological communities occur in predictable patterns. The New York State Department of Environmental Conservation (“NYSDEC”) further divides the State into ecological zones The proposed pipeline will cross two NYSDEC-designated Ecological Zones: Zone B – Great Lakes Plain Ecological Zone and Erie-Ontario Plain Minor Zone and the Zone A – Appalachian Plateau Ecological Zone and Cattaraugus Highlands Minor Zone.

From the Project’s northern terminus at the Dunkirk Generating Station, which is located on the shore of Lake Erie, the the proposed pipeline route will cross the Eastern Broadleaf Ecological Region for approximately six miles. The Eastern Broadleaf Ecological Region is characterized by average annual temperatures of 40oF and average precipitation of 40 inches per year falling mainly during the growing season. The land surface is nearly flat to rolling with elevation ranging from 80 feet to 1,650 feet above mean sea level (Bailey 1995). The Dunkirk Generating Station is at approximately 590-600 feet above mean sea level. Vegetation is characterized by oak-hickory forests and maple-beech forests (Bailey 1995). Predominate land use in this area of the Project is agricultural land, mainly vineyards. Areas not in agricultural use are generally wetlands.

The pipeline route traverses what NYSDEC classifies as Great Lakes Plain Ecological Zone and Erie-Ontario Plain Minor Zone from the Dunkirk Generating Station in the City of Dunkirk south to Webster Road in the Town of Pomfret (Dickenson 1983). The Great Lakes Plain is characterized as a generally flat plain land form less than 800 feet above mean sea level with

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undulating terrain. Vegetation communities associated with this zone are elm-red maple northern hardwood forests however only about one-fifth of the zone comprises natural vegetation as the land use is dominated by industrial and agricultural uses and transportation corridors (Dickenson 1983).

The proposed pipeline route will continue south from the Station within the Eastern Broadleaf Province Ecological Region for approximately 6 miles and then will gradually rises in elevation to approximately 900 feet above mean sea level where the pipeline route crosses the Little Canadaway Creek in the town of Pomfret. At this location the proposed pipeline route enters into the Lauretian Mixed Forest Province Ecological Region (Bailey et al 1994). The Lauretian Mixed Forest Province Ecological Region is characterized by moderately long and somewhat severe winters with average annual temperatures ranging from 35 o F to 50 o F. The growing season is 100 to 140 days and average annual precipitation ranges from 24 to 45 inches. Elevations range up to 2,400 feet above mean sea level and the terrain is characterized by rolling hills, morainic hills, drumlins, eskers and outwash plains as the Lauretian Mixed Forest Province was shaped by glaciers. The characteristic vegetation is transitional between broadleaf deciduous forests and boreal forests resulting in a forest composition of mixed coniferous and deciduous species (Bailey 1995). In the Project area, white pine (Pinus strobus) and Eastern hemlock (Tsuga canadensis) are the typical coniferous species intermixing with oaks, hickories, maples and American beech (Fagus grandifolia).

NYSDEC classifies the area the pipeline route traverses from the Little Canadaway Creek south to the Tennessee Gas Transmission Mainline Pipeline as Appalachian Plateau Ecological Zone and Cattaraugus Highlands Minor Zone (Dickenson 1983). The pipeline generally climbs steadily upslope to the top of a flat ridge inside the Lauretian Mixed Forest Province Ecological Region and Appalachian Plateau Ecological Zone where it connects to the Tennessee Natural Gas Transmission Pipeline approximately 1,600 feet in elevation. Locally, this plateau is referred to as the Chautauqua Ridge. The Chautauqua Ridge runs in a northeast-southwest orientation and is the Eastern Continental Divide between the Mississippi River drainage and Lake Erie/St. Lawrence River drainage. The land use in the vicinity of the Project area is predominately forest land with some agricultural land. The agricultural land is used for corn, hay and pasture land.

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3.0 WETLAND AND WATERBODY FIELD SURVEY METHODOLOGY

Wetland scientists from TRC consisting of three (3) field teams conducted wetland delineations and waterbody surveys from May 5 through May 9. 2014. Another field team conducted more surveys July 9 through July 11, 2014 and again on July 22, 2014. The surveys were conducted within a survey corridor surrounding the proposed limits of disturbance, which generally consisted of an area 200 feet in width centered on the proposed centerline of the pipeline. The sites for the proposed metering station, proposed regulating station, two mainline valves, additional temporary work space (“ATWS”) and proposed off-ROW access roads were surveyed with a 50-foot buffer outside of the proposed workspace boundary. The survey corridor with identified wetland and waterbody resources are depicted on the Resource Maps included in Appendix A.

Wetland delineations were conducted using the Federal Routine Determination Method presented in the Corps of Engineers Wetlands Delineation Manual (USACE 1987) and the Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Northcentral and Northeast Region (Version 2) (USACE 2012), including clarifications and interpretations provided in the March 6, 1992 guidance memorandum (Williams 1992), and the USACE and Environmental Protection Agency guidance on jurisdictional forms (EPA and USACE 2007 and USACE 2008). In addition, NYSDEC requires the use of the New York State Freshwater Delineation Manual (Browne et al. 1995) therefore the methods in the state manual were also implemented.

The 1987 USACE manual, Regional Supplement, and guidance memorandums emphasize a three- factor approach to wetland boundary determination in the field. This approach involves the following: (i) evidence of wetland hydrology; (ii) presence of hydric soils; and (iii) predominance of hydrophytic vegetation as defined by The National Wetland Plant List: 2014 wetland ratings (Lichvar, et al. 2014). Positive indicators of all three factors are normally present in wetlands and serve to distinguish between both upland and transitional plant communities.

The New York State methodology similarly recognizes the three factors of vegetation, soils, and hydrology. However, under the New York State method, the hydrophytic vegetation criterion is mandatory while the other two parameters are not (Browne et al. 1995). Also, freshwater wetlands under New York state jurisdiction must be at least 12.4 acres in size, unless they are deemed to have unusual local importance. The NYSDEC publishes maps of wetland areas under state jurisdiction; however, the NYSDEC uses field delineation to determine the precise boundaries of these wetland areas.

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Prior to conducting field delineations, TRC reviewed USGS 7.5-minute topographic maps, current aerial photographs, National Wetland Inventory (“NWI”) mapping, NYSDEC freshwater wetlands, United States Department of Agriculture Natural Resources Conservation Service (“NRCS”) soil mapping, National Hydrography Dataset, and priority stream mapping to identify potential wetland and waterbody features present within the proposed ROWs. Review of these data sources helped to familiarize the wetland scientist with site conditions prior to initiating the field surveys. Figure 2 shows the NWI and NYSDEC mapped wetlands within the Project area.

3.1 Evidence of Wetland Hydrology

The Corps of Engineers Wetland Delineation Manual (USACE 1987) and the Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Northcentral and Northeast Region (Version 2) (USACE 2012) provides guidelines for determining the presence of wetland hydrology. In general, the criteria for wetland hydrology are met if the area is inundated or saturated at the soil surface during the growing season for a time sufficient to develop hydric soils and to support hydrophytic vegetation. Sometimes these criteria are evident but in some instances it is necessary to use other field indicators to identify wetland hydrology. These characteristics include, but are not limited to: high water table; drainage patterns; water-stained leaves; sediment deposits; drift deposits; geomorphic position; and the facultative (“FAC”)-neutral test. Hydrologic indicators, including surface water depth, depth to water table, and depth to soil saturation, were recorded when observed.

3.2 Presence of Hydric Soils

Hydric soils are defined as soils “that formed under conditions of saturation, flooding, or ponding long enough during the growing season to develop anaerobic conditions in the upper part of the soil” (Federal Register, 1994). Hydric soil indicators described in the Field Indicators of Hydric Soils in the United States: A Guide for Identifying and Delineating Hydric Soils Version 7.0 (USDA 2010) were used to identify and document hydric soils per the Northcentral and Northeastern Regional Supplement (USACE 2012).

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Figure 2: NWI and NYSDEC Wetlands

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As previously stated, NRCS soil survey maps were reviewed prior to conducting the field surveys to determine the extent of mapped hydric soils within the proposed ROW and along the potential access routes. The soil series descriptions and drainage classifications for the survey corridor are provided on Table 1. A total of 36 soil types occur within the assessed area. According to the National List of Hydric Soils prepared by the NRCS (2012), 21 of the soils mapped within the surveyed area are classified as hydric soils. The mapped soil types range from excessively drained to very poorly drained soils.

Soils were examined in the field by using a tile spade shovel, or “sharpshooter,” to a depth of at least 12 inches or until refusal by the shovel. Soil characterization was performed in adjacent, undisturbed areas within the potential wetlands wherever disturbance of the soils, caused by past excavation or fill activity, was evident. Soils were generally characterized at a depth immediately below the A-horizon or at 12-18 inches of depth, whichever was shallower. Soil colors were identified using a Munsell Soil Color Chart (Munsell Color Company 2009). Other characteristics, such as the presence of redox concentrations and depletions and soil texture were also recorded. Hydric characteristics such as organic soil layers, gleying, iron and manganese concentrations, and oxidized rhizospheres, were noted where they occurred. The soils were evaluated both within and outside the wetland boundaries.

Table 1: Soils within Project Area Hydric Symbol Soil Name Slope Drainage Class Prime Farmland Rating1 Hydric Soils2 Ad Alden mucky silt loam - Very poorly drained 95 Not prime farmland Prime farmland if BrA Barcelona silt loam 0-3 Somewhat poorly drained 8 drained Prime farmland if BrB Barcelona silt loam 3-8 Somewhat poorly drained 3 drained Prime farmland if BsB Busti silt loam 3-8 Somewhat poorly drained 4 drained Canandaigua silt loam, loamy Farmland of statewide Cb - Poorly drained 96 substratum importance Prime farmland if CpB Churchville silt loam 3-8 Somewhat poorly drained 4 drained Prime farmland if DeA Darien silt loam 0-3 Somewhat poorly drained 4 drained Fluvaquents-Udifluvents Fe - Poorly drained 60 Not prime farmland complex, frequently flooded Prime farmland if FmA Fremont silt loam 0-3 Somewhat poorly drained 5 drained

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Table 1: Soils within Project Area Hydric Symbol Soil Name Slope Drainage Class Prime Farmland Rating1 Farmland of statewide FmB Fremont silt loam 3-8 Somewhat poorly drained 5 importance Farmland of statewide FmC Fremont silt loam 8-15 Somewhat poorly drained 5 importance FmD Fremont silt loam 15-25 Somewhat poorly drained 5 Not prime farmland La Lamson silt loam - Very poorly drained 90 Not prime farmland Prime farmland if Mn Minoa fine sandy loam - Somewhat poorly drained 15 drained Niagara silt loam, loamy Prime farmland if NgA 0-3 Somewhat poorly drained 4 substratum drained Niagara silt loam, loamy Prime farmland if NgB 3-8 Somewhat poorly drained 4 substratum drained Prime farmland if OrA Orpark silt loam 0-3 Somewhat poorly drained 5 drained Prime farmland if OrB Orpark silt loam 3-8 Somewhat poorly drained 5 drained Farmland of statewide OrC Orpark silt loam 8-15 Somewhat poorly drained 5 importance Pg Pits, gravel - 5 Not prime farmland Prime farmland if RaA Raynham silt loam 0-3 Somewhat poorly drained 5 drained Non-hydric Soils All areas are prime CkB Chautauqua silt loam 3-8 Moderately well drained 0 farmland All areas are prime CnA Chenango gravelly loam 0-3 Well drained 0 farmland All areas are prime CnB Chenango gravelly loam 3-8 Well drained 0 farmland All areas are prime ElB Elnora fine sandy loam 3-8 Moderately well drained 0 farmland All areas are prime Po Pompton silt loam - Moderately well drained 0 farmland All areas are prime ShB Schuyler silt loam 3-8 Moderately well drained 0 farmland Farmland of statewide ShC Schuyler silt loam 8-15 Moderately well drained 0 importance ShD Schuyler silt loam 15-25 Moderately well drained 0 Not prime farmland All areas are prime SoA Scio silt loam 0-3 Moderately well drained 0 farmland All areas are prime SoB Scio silt loam 3-8 Moderately well drained 0 farmland ToD Towerville silt loam 15-25 Moderately well drained 0 Not prime farmland ToE Towerville silt loam 25-35 Moderately well drained 0 Not prime farmland ToF Towerville silt loam 35-50 Moderately well drained 0 Not prime farmland

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Table 1: Soils within Project Area Hydric Symbol Soil Name Slope Drainage Class Prime Farmland Rating1 All areas are prime VaB Valois gravelly silt loam 3-8 Well drained 0 farmland VaD Valois gravelly silt loam 15-25 Well drained 0 Not prime farmland 1 A map unit is composed of one or more components. The components in the map unit name represents the major soils within the delineation. Hydric status is taken from the NRCS SSURGO database and represents the cumulative percent composition where the corresponding hydric rating is Yes. 2 Hydric determination was calculated as having a hydric rating > 50% with a drainage class of very poorly or poorly drained.

3.3 Predominance of Hydrophytic Vegetation

To determine the presence of hydrophytic vegetation, the dominant and non-dominant species in each major vegetative stratum (e.g., tree, shrub/sapling, herbaceous, and woody vine) were identified and recorded. Each plant was then assigned a wetland indicator status (i.e., obligate wetland (“OBL”), facultative wetland (“FACW”), FAC, facultative upland (“FACU”), or upland (“UPL”)) in accordance with the USACE’s The National Wetland Plant List: 2014 update of wetland ratings (Lichvar et al. 2014). A prevalence of dominant species that are FAC, wetland FACW, or OBL indicates the presence of hydrophytic vegetation.

The presence of hydrophytic vegetation was determined using the procedures described in the Northcentral and Northeast Regional Supplement (USACE 2012). Vegetation in each of the strata were sampled in the following plot sizes:

 Tree stratum: 30-foot radius  Sapling/shrub stratum: 15-foot radius  Herb stratum: 5-foot radius  Vine stratum: 30-foot radius

Within each stratum, the abundance of each species in the plot was determined by using aerial cover estimates and recorded. The Rapid Test was applied and if all of the dominant species in each stratum had an indicator of FACW or OBL, hydrophytic vegetation was deemed present. If the sampling area did not contain all species with an indicator status of FACW or OBL, the Dominance Test was applied. Most plant communities occurring within areas with hydric soils and indicators of hydrology will meet the qualifications of the Rapid Test or the Dominance Test. If a site with hydric soils and indicators of hydrology failed the Rapid Test and the Dominance Test, the vegetation was evaluated using the Prevalence Index. As necessary, when plant

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morphological adaptations were observed, plant indicator status was re-assigned and the Dominance Test or the Prevalence Index was re-assessed.

3.4 Wetland Delineation

If the soils, hydrology, and vegetation at a survey point indicated that it was within a wetland, the boundary of the wetland was determined, and it was demarcated with pink and black nylon WETLAND DELINEATION flagging. The approximate boundary was recorded on site maps, and the location of each flag was surveyed using a handheld Trimble GeoExplorer 6000 Series global positioning system (“GPS”) unit. Data from the GPS survey were downloaded and integrated into a Geographical Information System (“GIS”) database for the Project. Photographs were taken at each wetland and stream, and at other points of interest within the survey corridor.

After a wetland area was initially identified in the field, transect and plot locations were established, generally perpendicular to the wetland/upland boundary, in order to document conditions within each plant community and firmly establish the wetland boundary using wetland indicators. USACE wetland determination data forms were completed for representative wetland and upland plots along each transect (See Appendix B – Data Forms). Identified wetlands were classified according to Cowardin et al. (1979). The results of the delineations are summarized in Section 4.

3.5 Waterbody Assessment

Waterbodies within the Project area were identified by the presence of an ordinary high water mark (“OHWM”) and scoured channel or defined bed and banks. Centerline was located with the GPS receiver for any channels less than six feet in width. Top of bank was demarcated for perennial rivers or streams, and at the OHWM for ponds. Sequentially numbered (alpha-numeric) blue flagging was utilized to delineate these resources and was geographically located using GPS. Upon identifying a stream within the survey area, the following characteristics were estimated visually: active channel width; bank full width; flow regime (perennial, intermittent, or ephemeral), bank height, and substrate composition.

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3.6 Results Reporting

This report summarizes the wetlands and waterbodies identified in the survey corridor. Resource maps, including wetlands, streams and ponds, are included in Appendix A. USACE data forms are included in Appendix B. Appendix C contains representative photos of each wetland and stream within the survey corridor.

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4.0 RESULTS

A total of 64 wetland areas were identified in the survey corridor (See Appendix A for Resource Maps). Table 1 below provides a list of the wetlands identified and includes their wetland classification in accordance with Cowardin et al. (1979). None of the mapped wetlands are associated with any mapped NYSDEC wetlands.

For the purposes of this report, large wetlands are considered those whose area was delineated to be ≥0.50 acres within the survey corridor and small wetlands are considered those whose area was <0.50 acres. Thirty-four (34) wetlands are classified as large wetlands, while the remaining 29 wetlands are small. Most of the wetlands identified are part of larger, naturally occurring wetland systems which extend outside of the survey corridor. Many of the small wetlands were man-made ditches that have naturalized over time and have sufficient hydrology to support hydrophytic vegetation and develop hydric soils.

Most of the large wetlands in the survey corridor are found in flat areas or broad depressions and are not associated with watercourses. Most of these wetlands are wetland complexes with multiple cover types. Those with forested components were typically dominated by red maple (Acer rubrum), American elm (Ulmus americana), and green ash (Fraxinus pensylvanica). Several had hemlock (Tsuga canadensis) as a dominant in the overstory. Shrub-scrub cover types were thick and typically composed of large stands of red osier dogwood (Cornus sericea), grey dogwood (Cornus racemosa) or speckled alder (Alnus rugosa). Emergent cover types had commonly observed species that included reed canary grass (Phalaris arundinacea), bluejoint (Calamagrostis canadensis), cinnamon fern (Osmundastrum cinnamomeum), bristly dewberry (Rubus hispidus), Indian poke (Veratrum viride), sedge species (Carex sp.), sensitive fern (Onoclea sensibilis), and goldenrod species (Solidago spps). Surface water, high water table, and saturation, are commonly encountered indicators of hydrology in these wetlands. Soils range in texture from fine sandy loam with redox present to the soil surface to silt loam with redox present at six inches below the soil surface.

Smaller wetlands were typically found within the survey corridor in natural depressional areas or in depressional areas created by disturbance. A few wetlands were likely created from previous equipment disturbance compacting the soil resulting in poor drainage and were found within the existing transmission line ROW. Over time the soils in these areas begin to develop hydric soil indicators and hydrophytic vegetation colonizes the area. Similar vegetation is found in the smaller

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wetlands as compared to the larger wetlands within the ROW. Other common, disturbance- tolerant, species that are growing in the small wetlands including pussy willow (S. discolor), black willow (S. nigra), reed canary grass (Phalaris arundinacea), mulitflora rose (Rosa multiflora), narrow-leaf cat-tail (Typha angustifolia), New England American-aster (Symphyotrichum novae- angliae), and farewell-summer (S. lateriflorum). Hydrologic indicators of these smaller wetlands are similar to the larger wetlands, but some of the smaller wetlands also have geomorphic position as an indicator of hydrology. Soils in the smaller wetlands are similar to the larger wetlands and are generally comprised of a range of soil textures from loamy sand to silty clay.

4.1 Wetland Cover Types

As mentioned above, wetland cover types were assigned to each delineated wetland according to Classification of Wetlands and Deepwater Habitats of the United States (Cowardin et al. 1979). Using this hierarchical wetland classification system, three primary cover types were identified for vegetated wetlands in the Project area: palustrine emergent (“PEM”) and palustrine scrub-shrub (“PSS”), and palustrine forested “(PFO”) wetlands. Some wetlands contained mixed cover types of PEM, PFO, and PSS.

4.1.1 Palustrine Emergent Wetland

The PEM cover type is characterized by erect, rooted, herbaceous hydrophytes, excluding mosses and lichens (Cowardin et al. 1979). Within the survey corridor, PEM wetlands are found as a single dominant wetland cover type, and also as a co-dominant wetland type when other plant community types, mainly PSS.

Emergent wetlands are present in the proposed ROW throughout the Project area. PEM cover type is the most dominant cover type present in the proposed ROW. Commonly observed species in emergent wetlands include Phragmites (Phragmites australis), reed canary grass, sensitive fern (Onoclea sensibilis), sedges, wide-leaf cat-tail (Typha latifolia), bristly dewberry, fowl manna grass (Glyceria spps.), and goldenrods. Typical emergent wetlands include wetlands WA-2, and WB-12. Photos of these wetlands to demonstrate the typical characteristics of PEM wetlands found in the survey corridor are presented below. Many of the PEM wetlands had standing water or areas of open water. See Table 1 for more detailed information on these wetlands. .

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Wetland WA2

Wetland WB12

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4.1.2 Palustrine Scrub-Shrub Wetland

The scrub-shrub wetland cover type includes areas that are dominated by saplings and shrubs that are less than 20 feet tall (Cowardin et al. 1979). Scrub-shrub wetlands were least common wetland cover type found within the survey corridor. This cover type is found singly in some wetlands particularly near the railroad crossings on the northern section of the route and within the existing overhead electrical transmission ROW. It is also found in combination with PEM components in other wetlands. Commonly observed shrub species, as discussed above, include silky dogwood, grey dogwood, pussy willow and speckled alder. Dense stands of shrubs were found consistently in the PSS wetlands. Example PSS wetlands delineated include WB8 and WB16 and are included in the photos presented below.

Wetland WB8

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Wetland WB16

4.1.3 Palustrine Forested Wetland

Forested wetland cover types are dominated by trees and shrubs that have developed a tolerance to a seasonal high water table. In order to be characterized as forested, a wetland must be dominated by trees and shrubs that are at least six meters tall (Cowardin et al. 1979). Forest wetlands typically have a mature tree canopy, and depending upon the species and density, can have a broad range of understory and groundcover community components. PFO wetlands occur as a single dominant wetland cover type, and also as a co-dominate wetland type with other plant community types exist with the wetland.

Forested wetlands were mainly found in the southern half of the proposed pipeline route as this area is not located adjacent to an existing cleared utility ROW. Forested wetlands were also found adjacent to off-ROW access routes. Pit and mound topography was a distinct characteristic of the forested wetlands identified. Typical vegetation associations observed within forested wetlands in the Project area include red maple (Acer rubrum), silver maple (Acer saccharinum), hemlock (Tsuga canadensis), yellow birch (Betula alleghaniensis), cinnamon fern (Osmunda cinnamomea), and sensitive fern (Onoclea sensibilis). PFO wetlands include wetlands WA-7, WA-8, WA-9,

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WA-10, WB-5, WB-6, WB-13, WB-19, WB-20, WC-7, WC-15, WC-16, WC-17, and WC-18. Examples photos of the PFO wetlands are WB5 and WB6 presented below.

Wetland WB5

Wetland WB6

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Table 2: Wetlands within Project Area Right-Of-Way County Wetland Map Sheet Area Watershed DEC Field Description Field No. Delineated (HUC12) Class/Code Designated Designation (See App. A) (acres) Cowardin Classification Chautauqua WA-01 7 of 29 0.06 041201010203 None PEM Wetland has diverse herbaceous community dominated by reed canary grass (Phalaris arundinacea) and goldenrod species (Solidago sp.). Soils are thick, dark surface layer with sandy loams on a slight slope. Wetland is channelized in a ditch that parallels Temple Road. Chautauqua WA-02 8 and 9 of 30 15.57 041201010203 None PEM/PSS/ Emergent wetland with scrub shrub component dominated by reed canary grass (Phalaris arundinacea). PFO Characterized by a high water table and saturated soils that are a depleted fine sandy loam below four inches. Chautauqua WA-03 9 of 30 2.39 041201010203 None PEM Emergent wetland within active agricultural field dominated by common bulrush (Typha latifolia), pussy willow (Salix discolor), and silky dogwood (Cornus amomum). Characterized by surface water, a high water table and saturated soils that are a depleted matrix of fine sandy loam. Chautauqua WA-04 11 of 30 11.35 041201010204 None PFO/PSS Large Forested and scrub-shrub wetland between Agricultural field and Van Buren Road. Areas in the National Grid ROW are dominated by reed canary grass (Phalaris arundinacea). The remainder of the pipeline ROW is dominated by black willow (Salix nigra) and silky dogwood (Cornus amomum) with a reed canary grass (Phalaris arundinacea) understory. This wetland is drained by both SA2 & SA3. Characterized by a high water table and saturated soils that are a depleted matrix of fine sandy loam below two inches. Chautauqua WA-05 18 of 30 0.34 041201010204 None PEM/PFO Emergent wetland within a forested area dominated by jewelweed (Impatiens capensis) and wrinkle leaf goldenrod (Solidago rugosa). A few scattered shrubs of spice bush (Lindera benzoin) are found in the wetland. Wetland is fed by hillside seep and drains into Stream SA4. Characterized by a high water table, saturated soils, sediment deposits, water-stained leaves and a thick muck surface. Soils are depleted below dark surface and consist of fine silt loam and fine silty clay. Chautauqua WA-06 19 of 30 1.27 041201010204 None PEM/PSS Emergent wetland dominated by reed canary grass (Phalaris arundinacea), jewelweed (Impatiens capensis) and New England Aster (Symphyotrichum novae-angliae). Glossy buckthorn (Frangula alnus) is also present however it is dead –standing from herbicide treatment. Wetland is characterized by surface water of approximately 3 inches, a high water table at approximately 6 inches, and saturated depleted dark surface of silty clay loam with redox features observed at and below 6 inches. Chautauqua WA-07 23 of 30 0.25 041201010204 None PFO/PEM Depressional forested wetland dominated by red maple (Acer rubrum), silky dogwood (Cornus amomum), gray birch (Betula populifolia), staghorn sumac (Rhus typhina), multiflora rose (Rosa multiflora), soft rush (Juncus effusus), and reed canary grass (Phalaris arundinacea). Characterized by surface water, a high water table and saturated depleted dark surface soils. Redox features are evident throughout the soil. Chautauqua WA-08 24 of 30 0.17 041201010204 None PFO Forested wetland on 5% slope associated with an off ROW seep and drainage way. Diverse herbaceous layer consisting of red maple (Acer ruburm), gray dogwood (Cornus racemosa), sensitive fern (Onoclea sensibilis), and swamp dewberry (Rubus hispidus). The wetland is characterized by surface water, a high water table, and saturated redox dark surface soils. There is high organic matter at the top layer of this fine sandy loam soil and redox features present throughout. Chautauqua WA-09 24 of 30 1.32 041201010204 None PFO Depressional forested wetland dominated by American elm (Ulmus americana), spicebush (Lindera benzoin), gray dogwood (Cornus racemosa), and jewelweed (Impatiens capensis). Wetland hydrology is characterized by surface water, a high water table and saturated soils. Redox features present in the soil from 5-12 inches. Chautauqua WA-10 24 and 25 of 0.93 041201010204 None PFO Forested wetland dominated by eastern hemlock (Tsuga canadensis), yellow birch (Betula alleghaniensis), 30 & common buckthorn (Rhamnus cathartica), red maple (Acer ruburum), sensitive fern (Onoclea sensibilis), 050100020301 cinnamon fern (Osmunda cinnamomea), and narrowleaf cattail (Typha angustifolia). This wetland is characterized by surface water, a high water table, water-stained leaves, saturated soils and is potentially a vernal pool. The soil is a histosol with a fibrous muck texture. Chautauqua WA-11 25 of 30 1.84 050100020301 None PFO/PEM Highly diverse depressional forested and scrub-shrub wetland community dominated by eastern hemlock (Tsuga canadensis), yellow birch (Betula alleghaniensis), glossy buckthorn (Frangula alnus), spicebush (Lindera benzoin), marsh marigold (Caltha palustris), and sensitive fern (Onoclea sensibilis). This wetland is

4-7 July 2014 Dunkirk Natural Gas Pipeline Project Wetland Delineation Report

characterized by a high water table, surface water, iron deposits, water-stained leaves, and a saturated fibrous muck histosol. Chautauqua WA-12 27 of 30 .27d 050100020301 None PEM/PSS/ Diverse emergent and scrub-shrub wetland dominated by sugar maple (Acer saccharum), silky dogwood PFO (Cornus amomum), gray dogwood (Cornus racemosa), reed canary grass (Phalaris arundinacea), jewelweed (Impatiens capensis), and sensitive fern (Onoclea sensibilis). Wetland is characterized by the presence of a high water table, drainage patterns, and a saturated depleted matrix of fine silt loam with redox depressions. Chautauqua WB-01 13 of 30 1.83 041201010204 None PEM Emergent wetland that has recently been mowed is dominated by reed canary grass (Phalaris arundinacea). Wetland is characterized by approximately 2 inches of surface water, a high water table at 8 inches, oxidized rhizosheres on living roots, and depleted matrix of silty clay loam and fine sandy loam with redox features observed throughout. Chautauqua WB-02 13 of 30 0.72 041201010204 None PEM Emergent wetland in a slight depression, previously mowed located adjacent to stream SB-1 and was dominated by creeping bentgrass (Agrostis stolonifera). Wetland is characterized by a high water table and saturation depleted matrix of silt clay loam from 0-12 inches and at 12-18 inches clay with redox features observed throughout. Chautauqua WB-03 14 of 30 3.08 041201010204 None PSS/PFO A scrub-shrub wetland located directly underneath a transmission line is dominated by silky dogwood (Cornus amomum) Kentucky bluegrass (Poa pratensis), and Stalk-grain sedge (Carex Stipata). Wetland is characterized by a high water table at 10 inches and saturated red parent material of silt loam at 0-11 inches and fine sandy loam at 11-16 inches with redox features observed throughout. Chautauqua WB-04 14 of 30 0.14 041201010204 None PEM/PSS/ Emergent scrub-shrub wetland within a slight depression dominated by glossy buckthorn (Frangula alnus), PFO Stalk-grain sedge (Carex stipata), and reed canary grass (Phalaris arundinacea). Wetland characterized by surface water at approximately 1 inch, a high water table at 8 inches, presence of reduced iron, and saturated depleted matrix of fine sandy loam with redox features observed throughout. Chautauqua WB-05 20 of 30 2.02 041201010204 None PFO/PSS Forested wetland located on a hillslope with SB-2 flowing into a PSS wetland within a transmission line, the wetland dominated by red maple (Acer rubrum). Wetland is characterized by surface water of approximatley 4 inches, a high water table at 8 inches, water-stained leaves, presence of reduced iorn, and depleted below dark surface of silty loam with redox features observed at and below 2 inches. Chautauqua WB-06 22 of 30 0.81 041201010204 None PFO Forested wetland located on a hillslope steppe with pit and mound topography, and wetland drains into intermittent stream SB-3 dominated by red maple (Acer rubrum) and poison ivy (Toxicodendron radicans). Wetland is characterized by surface water of approximately 2 inches, a high water table at 3 inches, water- stained leaves, and saturated depleted matrix of silty clay loam with redox features observed at and below 4 inches. Chautauqua WB-07 22 of 30 0.17 041201010204 None PEM/PSS Depressional forested wetland domintated by red maple (Acer rubrum), silky dogwood (Cornus amomum), glossy buckthorn (Frangula alnus), staghorn sumac (Rhus typhina), multiflora rose (Rosa multiflora), soft rush (Juncus effusus), and reed canary grass (Phalaris arundinacea). Characterized by surface water, a high water table and saturated depleted dark surface soils. Redox features are evident throughout the soil. Chautauqua WB-08 21 of 30 1.13 041201010204 None PSS/PFO Scrub-shrub wetland located on a hillslope with an approximate 8-10% slope and multiple intermittent streams within a maintained transmission line ROW dominated by glossy buckthorn (Frangula alnus). Vegetation within the ROW is dead from herbicide application. Wetland is characterized by surface water of approximately 1 inch, a high water table at 6 inches, and saturated depleted matrix of silty clay loam from 0-6 inches and silty clay at 6-16 inches with redox features observed at and below 6 inches. Chautauqua WB-09 29 of 30 1.65 050100020301 None PEM/PSS Wetland has an emergent component, located in an agricultural field and dominated by reed canary grass (Phalaris arundinacea). A scrub-shrub component, located between two agricultural fields is dominated by black willow (Salix nigra) and pussy willow (Salix discolor). Wetland is characterized by a high water table at approximately 12 inches in emergent component and 7 inches in scrub-shrub component. The emergent portion has presence of reduced iron and saturated depleted matrix of silty clay loam from 0-12 inches and fine sandy loam from 12-16 inches with redox features observed throughout. The scrub-shrub has saturated histosol of muck texture present.

4-8 July 2014 Dunkirk Natural Gas Pipeline Project Wetland Delineation Report

Chautauqua WB-10 29 of 30 2.09 050100020301 None PSS/PEM Scrub-shrub wetland located in a linear depression between two active agricultural fields. Dominated by Pussy willow (Salix discolor), Yellow Marsh-Marigold (Caltha palustris), Canadian goldenrod (Solidago canadensis), and Rice Cut Grass (Leersia oryzoides). Characterized by approximately 2 inches of surface water, a high water table at approximatley 4.5 inches and a saturated mucky mineral redox dark surface soil from 0-16 inches.

Chautauqua WB-11 3 of 30 0.76 041201010202 None PEM/PSS Emergent wetland located within a managed utility ROW in an urban setting dominated by red-barked dogwood (Cornus alba) and common reed (Phragmites australis). Wetland is characterized by a high water table at approximately 10 inches, presence of reduced iron, and redox dark surface of silty clay with redox features observed throughout. Chautauqua WB-12 3 of 30 1.61 041201010202 None PEM/PSS A large emergent wetland with open water in the middle dominated by common reed (Phragmites australis). Wetland is characterized by surface water and saturated black histic of mucky silt loam. Chautauqua WB-13 3 of 30 0.60 041201010202 None PFO/PSS Forested wetland on the edge of stream SB12 dominated by common reed (Phragmites australis), Tatarian honeysuckle (Lonicera tatarica), black willow (Salix nigra), and green ash (Fraxinus pennsylvanica). Wetland is characterized by drift deposit, surface water, a high water table, presence of reduced iron, and redox dark surface of silt loam with redox features observed throughout. Chautauqua WB-14 3 of 30 0.16 041201010202 None PEM/PSS Emergent wetland dominated by gray birch (Betula populifolia) and common reed (Phragmites australis). Wetland characterized by surface water of approximately 2 inches, a high water table at approximately 6 inches, and saturated depleted matrix of silt loam at 0-9 inches and silty clay at 9-16 inches with redox features observed throughout. Chautauqua WB-15 3 and 4 of 30 12.86 041201010202 None PEM/PFO/ Emergent wetland in a low lying area within a transmission line ROW dominated by reed canary grass PSS (Phalaris arundinacea). Wetland is characterized by surface water ponding in the western portion, oxidized rhizosheres on living roots, presence of reduced iron, and redox dark surface of silty clay with redox features observed throughout. Chautauqua WB-16 4 and 5 of 30 11.79 041201010202 None PSS Scrub-shrub wetland with pit and mound topography dominated by green ash (Fraxinus pennsylvanica), speckled alder (Alnus rugosa), and moss. Wetland characterized by surface water of approximately 1 inch, a high water table at approximately 6 inches, and redox dark surface of silty clay loam with redox features observed throughout. Chautauqua WB-18 6 of 30 0.27 041201010202 None PEM Emergent wetland with scrub-shrub components dominated by red-barked dogwood (Cornus alba) and reed canary grass (Phalaris arundinacea). Wetland is characterized by a high water table at approximately 6 inches, oxidized rhizosheres on living roots, and saturated depleted matrix and redox dark surface silty clay loam at 0-6 inches and fine sandy loam at 6-16 inches with redox features observed throughout. Chautauqua WB-19 22 of 30 1.05 041201010204 None PFO/PEM Forested wetland with buttressed roots observed, dominated by red maple (Acer rubrum), green ash (Fraxinus pennsylvanica), green brier (Smilax rotundifolia), and glossy buckthorn (Frangula alnus). Wetland is characterized by surface water of approximately 5 inches, a high water table, water-stained leaves, and saturated depleted matrix of silt loam with redox features observed throughout. Chautauqua WB-20 22 of 30 0.03 041201010204 None PFO/PEM Forested wetland with buttressed roots observed, dominated by red maple (Acer rubrum), green ash (Fraxinus pennsylvanica), green brier (Smilax rotundifolia), and glossy buckthorn (Frangula alnus). Wetland is characterized by surface water of approximately 5 inches, a high water table, water-stained leaves, and saturated depleted matrix of silt loam with redox features observed throughout. Chautauqua WB-100 12 of 30 0.18 041201010204 None PEM WB-100 is an emergent wetland with an average of one-foot of standing water. It was created by an excavated retention basin to collect runoff from the adjacent landfill and outlets to the west by a culvert. The outlet is monitored for contaminants. USACE datasheet not recorded due to the potential for exposure to contaminants. Emergent vegetation was dominated by phragmites (Phragmites australis). Chautauqua WB-101 12 of 30 0.13 041201010204 None PEM Emergent wetland found within the borrow pit of a landfill therefore this wetland was created by disturbance. The wetland is within a round depression and is approximately one foot lower than the surrounding area. Herbaceous cover includes dark green bulrush (Scirpus atrovirens), soft rush (Juncus effusus), and purple loosestrife (Lythrum salicaria).

4-9 July 2014 Dunkirk Natural Gas Pipeline Project Wetland Delineation Report

Chautauqua WB-102 15 of 30 2.62 041201010204 None PSS This wetland has a dense cover of glossy buckthorn (Frangula alnus). Other woody species observed within the canopy include red-barked dogwood (Cornus alba), green ash (Fraxinus pennsylvanica), and pussy willow (Salix discolor). Under the dense stems there is a carpet of tree moss and a variety of herbs such as rough stem goldenrod (Solidago rugosa), healall (Prunella vulgaris), soft rush (Juncus effusus) and several species of grass. There is evidence of water ponding around hummocks of the tree moss. Soil has a fine sandy loam texture with a depleted matrix. Chautauqua WB-103 0.01 041201010204 None PEM/PFO This is an emergent wetland that lines a widened swale connecting stream SA6 to a pond located off ROW to the west. Vegetation is mainly small shrubs and herbaceous layer including wrinkle leaf goldenrod (Solidago rugosa), wild geranium (Geranium maculatum), and green ash saplings (Fraxinus pennsylvanica). Soils showed a depleted matrix beginning six inches in depth with 7.5yr 5/8 concentrations. Chautauqua WC-01, 5 of 30 2.65 041201010202 None PEM/PSS This scrub‐shrub wetland is located on the perimeter of an active agricultural field and partially within a WC-02, & drainage area adjacent to an active railroad. Dominant species include reed canary grass (Phalaris WB-17 041201010203 arundinacea) sedges (Carex sp.) and goldenrods (Solidago sp.) in the mowed areas and honeysuckle (Lonicera sp.), pussy willow (Salix discolor), and red‐barked dogwood (Cornus alba) in ditched areas. Water was ponded in heavily compacted soils, with saturated soils and a water table present within 16 inches of the surface. Soils were sandy loams with dark surfaces and redox present throughout. Chautauqua WC-03 5 of 30 0.43 041201010203 None PEM Wetland is within the maintained transmission line ROW and is dominated by reed canary grass (Phalaris arundinacea). Wetland is characterized by water marks, water-stained leaves, oxidized rhizospheres on living roots, and saturated depleted matrix of very fine sandy loam with redox features throughout. Chautauqua WC-04 7 of 30 0.27 041201010203 None PEM/PSS Riparian wetland surrounding a small perennial stream dominated by reed canary grass (Phalaris arundineacea). Wetland is characterized by a high water table at 11 inches, water marks, oxidized rhizosheres on living roots, and saturated redox dark surface of fine sandy loam soil. Chautauqua WC-05 14 and 15 of 0.06 041201010204 None PEM/PSS An agricultural drainage ditch with fringe wetlands dominated by red osier dogwood (Cornus sericea), march 30 club moss (Lycopodiella inundata), wrinkle leaf goldenrod (Solidago rugosa), and field horsetail (Equisetum arvense). Wetland is characterized by surface water, high water table, saturated depleted matrix and depleted dark surface of very fine sandy loam. Chautauqua WC-06 15 of 30 0.13 041201010204 None PEM/PFO A long linear wetland located within a man-made drainage ditch between agricultural fields. The ditch has developed natural features and is dominated by narrow leaf cattail (Typha lattifolia). Approximately 6 inches of standing water within the ditch. Chautauqua WC-07 15 of 30 0.06 041201010204 None PFO A small forested wetland adjacent to a vineyard dominated by green ash (Fraxinus pennslyvanica), red maple (Acer rubrum), and buckthorn (Rhamnus frangula). Wetland is characterized by surface water of less than 1 inch, a high water table, water-stained leaves, and saturated depleted matrix of silty loam with redox features observed below 8 inches. Chautauqua WC-08 16 of 30 0.88 041201010204 None PFO/PEM A forested wetland adjacent to an emergent wetland. Forested portion dominated by green ash (Fraxinus pennsylvanica), American elm (Ulmus americana), shagbark hickory (Carya ovata), hawthorn (Crataegus), and spicebush (Lindera benzoin). Emergent portion is within the corner of an agricultural field. Wetland is characterized by water-stained leaves and saturated depleted matrix of very fine silty loam and redox features observed below 9 inches. Chautauqua WC-09 16 of 30 0.90 041201010204 None PFOPEM A large wetland with a forested and emergent component. The forested wetland is dominated by shagbark hickory (Carya ovata), sweet gale (Myrica gale), ground pines (Lycopodium), and wild leek (Allium tricoccum). The hickories are distinctly buttressed to adapt to the poorly drained conditions. Wetland is characterized by high water table at approximately 7 inches, water-stained leaves, leaf litter layer, root buttressing, and saturation depleted matrix with redox features observed below 5 inches. Chautauqua WC-10 16 of 30 0.09 041201010204 None PFO/PEM Forested emergent wetland connected to an adjacent agricultural ditch. The forested portion is dominated by dominated by spicebush (Lindera benzoin) and narrowleaf cattail (Typha angustifolia). Wetland is characterized by high water table at 16 inches and saturation of redox dark surface sandy loam with redox features observed below 16 inches.

4-10 July 2014 Dunkirk Natural Gas Pipeline Project Wetland Delineation Report

Chautauqua WC-11 16 of 30 5.24 041201010204 None PFO/PSS/ A large wetland complex that extends for a long distance to the east and west of the proposed ROW. The PEM wetland is forested within the proposed ROW and is dominated by hemlock (Tsuga canadensis) and red maple (Acer rubrum) in the overstory. The wetland has scrub-shrub and emergent cover types within National Grid ROW however the shrubs are dead standing from herbicide. Characteristic vegetation in these cover types are pussy willow (Salix discolor), glossy buckthorn (Rhamnus frangula) mulitflora rose (Rosa multiflora) and narrowleaf cattail (Typha angustifolia). Wetland is characterized by surface water of approximately 1 inch, a high water table at 5 inches, and saturated depleted matrix of very fine sandy loam with redox features observed at 12 inches and below. Mucky mineral soils within the forested area. Chautauqua WC-12 17 of 30 1.12 041201010204 None PSS/PEM Emergent wetland transitioning into a scrub-shrub wetland dominated by, multiflora rose (Rosa multiflora) and common reed (Phragmites australis). Wetland is characterized by a high water table at 6 inches, oxidized rhizosheres on living roots, and saturated redox dark surface gravelly loam with redox features observed throughout. Chautauqua WC-13 29 of 30 0.54 050100020301 None PEM Emergent wetland dominated by wrinkle leaf goldenrod (Solidago rugosa) and reed canary grass (Phalaris arundinacea). Wetland is characterized by surface water of approximately 1 inch, high water table at approximately 10 inches, and saturated depleted matrix with redox features observed at and below 8 inches. Chautauqua WC-14 27 of 30 2.05 050100020301 None PFO/PEM Emergent wetland bordering a beech forest with small pocket wetlands between the root systems dominated by American beech (Fagus grandifolia), willow species (Salix sp.), common rush (Juncus effusus), and wrinkle leaf goldenrod (Solidago rugosa). Wetland is characterized by a high water table, water-stained leaves, and saturation of depleted matrix very fine sandy loam with redox features observed at and below 4 inches. Chautauqua WC-15 25 of 30 1.17 050100020301 None PFO Forested wetland dominated by red maple (Acer rubrum), eastern hemlock (Tsuga canadensis), sugar maple (Acer saccharum), American beech (Fagus grandifolia), Indian Poke (Veratrum virde), and trout lily (Erythronium). Wetland is characterized by surface water of approximately 1 inch, high water table at approximately 7 inches, and saturation of depleted matrix fine sandy loam with redox features at and below 4 inches. Chautauqua WC-16 25 and 26 of 0.52 050100020301 None PFO Forested wetland in transition is dominated by yellow birch (Betula alleghaniensis), eastern hemlock (Tsuga 30 canadensis), Indian poke (Veratrum viride), and trout lily (Erythronium). Wetland is characterized by surface water of approximately 2 inches, a high water table at approximately 6 inches, water-stained leaves, and saturation of depleted matrix fine sandy loam with redox features observed at and below 8 inches. Chautauqua WC-17 26 of 30 1.05 050100020301 None PFO Depressional forested wetland is dominated by green ash (Fraxinus pennsylvanica), yellow birch (Betula alleghaniensis), red maple (Acer rubrum), and Indian poke (Veratrum viride). Wetland is characterized by a higher water table observed at 9 inches and saturation of depleted matrix fine sandy loam with redox features at and below 8 inches. Chautauqua WC-18 26 of 30 0.38 050100020301 None PFO Small forested wetland in an area of open canopy dominated by American Elm (Ulmus americana), spicebush (Lindera benzoin), and marsh marigold (Caltha palustris). Wetland is characterized by surface water at approximately 1 inch, high water table, and saturation of depleted matrix fine sandy loam with redox features observed at and below 6 inches. Chautauqua WC-19 28 of 30 0.06 041201010203 None PEM Emergent wetland adjacent to forest dominated by eastern white pine (Pinus strobus), silky dogwood (Cornus amomum), and reed canary grass (Phalaris arundinacea). Wetland is characterized by surface water with approximately 2 inches, a high water table, and saturation of a histosol clay with redox features observed at and below 14 inches. Chautauqua WC-20 27 of 30 0.22 050100020301 None PSS/PFO Depressional scrub-shrub wetland dominated by willow species (Salix sp.), silky dogwood (Cornus amomum), and sensitive fern (Onoclea sensibilis). Wetland is characterized by surface water of approximately 1 inch, a high water table observed at 4 inches, and saturation of a histosol fine sandy loam with redox features observed at and below 14 inches. Chautauqua WC-21 27 of 30 0..04 050100020301 None PEM/PSS Emergent wetland transitioning into a scrub-shrub wetland located on a slope of approximately 8% is dominated by common rush (Juncus effusus) and reed canary grass (Phalaris arundinacea). Wetland is characterized by surface water of approximately 3 inches, high water table, and saturation of depleted matrix fine silty loam with redox features observed throughout.

4-11 July 2014 Dunkirk Natural Gas Pipeline Project Wetland Delineation Report

Chautauqua WC-22 27 of 30 0.04 050100020301 None PEM/PSS Depressional emergent wetland accumulates the surrounding surface water and is dominated by red maple (Acer rubrum), silky dogwood (Cornus amomum), and reed canary grass (Phalaris arundinacea). Wetland is characterized by surface water of approximately 2 inches, a high water table, and saturation of redox dark surface silty loam, with redox features observed at and below 10 inches. Chautauqua WC-23 27 of 30 0.05 050100020301 None PSS/PEM Terraced scrub shrub wetland is dominated by black willow (Salix nigra) and sensitive fern (Onoclea sensibilis). Wetland is characterized by a high water table, water-stained leaves, oxidized rhizosheres on living roots, sparsely vegetated concave surface, drainage patterns, stunted or stressed plants, and saturation of depleted matrix and depleted dark surface of fine sandy loam with redox features observed throughout. Chautauqua WC-24 29 of 30 0.06 041201010203 None PEM/PSS/ A hillslope scrub-shrub/emergent wetland dominated by white pine (Pinus strobus), silky dogwood (Cornus PFO amomum), and reed canary grass (Phalaris arundinacea). Wetland is characterized by a high water table at approximately 4 inches, water-stained leaves, drainage patterns, and microtopographic relief, and saturation of thick dark surface throughout. Chautauqua WC-25 6 of 30 0.52 041201010203 None PEM/PSS Emergent depressional wetland dominated by American elm (Ulmus americana), silky dogwood (Cornus amomum), and reed canary grass (Phalaris arundinacea). Wetland is characterized by surface water of approximately 4 inches, high water table, and saturation of 2cm muck and dark surface fine sandy loam with redox features observed at and below 2 inches. Chautauqua WC-101 13 of 30 0.06 None PEM Emergent depressional wetland dominated by soft rush (Juncus effusus) and fox sedge (Carex vulpinoidea). Wetland is characterized by oxidized rhizosheres on living roots and depleted matrix of fine sandy loam and 41201010204 very fine sandy loam with redox features observed throughout. Chautauqua WC-102 11 of 30 2.53 None PEM Emergent depressional wetland within an existing agricultural field dominated by soft rush (Juncus effusus), fox sedge (Carex vulpinoidea), shallow sedge (Carex lurida), and switch grass (Panicum virgotum). Wetland is characterized by soil saturation at approximately 1 inch and depletion below dark surface of very fine sandy 41201010204 loam. Redox features were observed beginning at 2 inches and continued below 18 inches. Chautauqua WC-103 13 of 30 0.21 None PEM Emergent depressional wetland located within an agricultural field dominated by soft rush (Juncus effusus), shallow sedge (Carex lurida), and dark green bulrush (Scirpus atrovirens). Wetland is characterized by soil saturation, water-stained leaves, oxidized rhizospheres on living roots, and loamy gleyed matrix of glay loam from 0 to 4 inches and very fine sandy loam from 4 to 15 inches. Redox features were observed from 0 to 15 41201010204 inches. Chautauqua WC-104 24 of 30 0.01 None PEM/PFO Isolated emergent depressional wetland dominated by sugar maple (Acer saccharum), eastern hemlock (Tsuga Canadensis), American beech (Fagus grandifolia), green ash (Fraxinus pennsylvanica), common jewelweed (Impatiens capensis), and sensitive fern (Onoclea sensibilis). Wetland is characterized by a high water table at approximately 1 inch, soil saturation, sparsely vegetated concave surface, water-stained leaves, and a histic 41201010204 epepedon of much and mucky loam. Redox features were observed at 16 inches and below. Chautauqua WC-105 27 of 30 0.06 None PEM/PSS/ Emergent wetland at the toe of a slope that collects surface runoff and is dominated by green ash (Fraxinus PFO pennsylvanica), grey dogwood (Cornus racemosa), common jewelweed (Impatiens capensis), sensitive fern (Onoclea sensibilis), common boneset (Eupatorium perfoliatum), and giant goldenrod (Solidago gigantea). Wetland is characterized by soil saturation beginning at approximately 1 inch, geomorphic position, and 50100020301 depletion below dark surface of very fine sandy loam. Redox features observed from 0 to 19 inches.

4-12 July 2014 Dunkirk Natural Gas Pipeline Project Wetland Delineation Report

4.2 Waterbodies

The Project is located within the Lake Erie (western end of the proposed route) and the Conewango Creek Drainage Basins. The state regulated waterbodies located in the Lake Erie basin (HUC 14120101/130) include the Canadaway Creek (NYSDEC Class B(TS)) and tributaries (NYSDEC Class B) and Little Canadaway Creek and tributaries (NYSDEC Class C), the Crooked Brook and tributaries (NYSDEC Class C) and various tributaries to Lake Erie (NYSDEC Class B and C). The Project will also cross a Class A tributary to Bear Lake in the Conewango Creek Watershed (HUC 05010002/030). Along with locating the NYSDEC classified streams and creeks that drain the watersheds along the proposed ROW, TRC identified many small creeks, drainages and wetlands that network throughout each watershed.

During the field survey, TRC identified a total of 38 streams within the survey corridor. No other waterbodies such as ponds or canals were identified within the survey corridor. Table 3 provides the details on these streams. A total of 19 perennial streams were identified while the remaining 19 were intermittent or ephemeral. Maps depicting the location of all waterbodies found within the survey corridor are located in Appendix A.

The NYSDEC streams with classifications assigned (A, B, or C) found within the Project area range in width from approximately 2 feet to 100 feet, the ordinary high water ranges in depth from 0.5 feet to 2 feet, and substrate is generally comprised of sand, cobble, and gravel though some of the tributaries contained finer sediments such as silts or clays and organic material. Photographs of the NYSDEC classified streams are presented below. Several unclassified streams were also surveyed within the Project area. The unclassified streams ranged in width from approximately 0.5 to 30 feet with substrates consisted mainly of sand, gravel and silts. The majority of the unclassified streams are described as low flow perennial or intermittent streams.

4-13 July 2014 Dunkirk Natural Gas Pipeline Project Wetland Delineation Report

Stream SA1, facing northeast looking along Canadaway Creek, NYSDEC Class B(TS) stream.

Stream SA2, Looking south at Tributary to Lake Erie, NYSDEC Class B stream.

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Stream SA3 Looking .east at Tributary to Lake Erie, NYSDEC Class B stream

Stream SA9 Looking south at Tributary to Little Canadaway, NYSDEC Class C stream.

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Stream SB1 Looking at a Tributary to Lake Erie, NYSDEC Class C stream.

Stream SB3 Looking at Little Canadaway Creek, NYSDEC Class C stream.

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Stream SB4 Tributary to Little Canadaway Creek, NYSDEC Class C stream.

SB5 Tributary to Lake Erie, NYSDEC Class C stream.

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Stream SB12 Crooked Brook Tributary, NYSDEC Class C stream.

Stream SB13 Crooked Brook, NYSDEC Class C stream.

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Stream SC1 Looking southeast Canadaway Creek Lower and Tributaries, NYSDEC Class B stream.

Stream SC7 Looking west at Tributary to Beak Lake, NYSDEC Class A stream.

4-19 July 2014 Dunkirk Natural Gas Pipeline Project Wetland Delineation Report

Table 3: Streams within Project Right-Of-Way

Stream Field Map Sheet No. Bank Bank Height Depth Stream Watershed Town Streambed Waterbody Name Flow Status Description Designation (App. A) Width (Ft) (Ft) (Ft) Classification 1 (HUC12) The streambed consists primarily of rock/rubble intermixed with sand and gravel. Two channels form a large island in the center of the stream. Species observed consisted of Trout (genus 40% Sand Salmo sp.), common mergancer (Mergus Canadaway Creek Perennial, Moderate Dunkirk SA1 7 of 30 100’ 3’ 2’ 10% Gravel B(TS) 041201010203 merganser), redwinged blackbird (Agelaius flow 50% Cobble phoeniceus), blue jay (Cyanocitta cristata) and American robin (Turdus migratorius). SA1 provides habitat for migratory species such as trout and drains a significant portion of the surrounding land. The streambed consists primarily of mud and vegetation. SA2 is approximately 0.5-10 inches wide with a bank height of approximately 6 98% Silt/clay Unnamed tributary to Perennial, low to inches. Little or no bank, stream originates Pomfret SA2 11 and 13 of 30 0.5-10’ 0.5-3’ 6” 1% Sand Lake Erie B 041201010203 Moderate flow from cattle field to Van Buren Rd and overflows 1% Vegetation into WA4. Green frog (Lithobates clamitans) was observed. SA2 is the primary source of water for WA4. The streambed consists of mud and vegetation. SA2 is approximately 4-6 feet wide with a bank height of approximately 6 inches. Stream flows Unnamed tributary to Silt/clay/sand through wetland WA4. Northern leopard frog Pomfret SA3 11 of 30 4-6’ 6” 6” Lake Erie B Perennial, low flow 041201010203 Vegetation (Lithobates pipiens), red winged blackbird

(Agelaius phoeniceus), wood cock (genus Scolopax sp.), killdeer (Charadrius vociferous) were observed. Provides water for WA4. The streambed primarily consists of sand and 60% Sand Unnamed tributary to an gravel. SA4 is approximately 1-4 feet wide Pomfret SA4 18 of 30 1-4’ 0.5-2’ 3” 30% Gravel unnamed tributary to Unclassified Intermittent 041201010204 with a bank height of approximately 0.5-2 feet. 10% Cobble Lake Erie Little to no banks, drains hillside seeps of

4-20 July 2014 Dunkirk Natural Gas Pipeline Project Wetland Delineation Report

Table 3: Streams within Project Right-Of-Way

Stream Field Map Sheet No. Bank Bank Height Depth Stream Watershed Town Streambed Waterbody Name Flow Status Description Designation (App. A) Width (Ft) (Ft) (Ft) Classification 1 (HUC12) wetland WA5. No fish or aquatic fauna observed. SA5 is channelized within the National Grid ROW and vineyard. SA5 is approximately 6-25 Unnamed tributary to an feet wide with a bank height of 2-10 feet. Very Sand/silt/clay Perennial Pomfret SA5 18 of 30 6-25’ 2-10’ 3-6’’ unnamed tributary to Unclassified 041201010204 steep banks, beaver activity. Drains wetland Moderate Lake Erie WA5 and SA4. Brown trout (Salmo trutta) were observed utilizing the stream for migration. SA6 is approximately 1-4 feet wide with a bank Unnamed tributary to an height at 0.5-2 feet. Undefined bank. Cobble/gravel/silt/ Intermittent Pomfret SA6 18 and 19 of 30 1-4’ 0.5-2’ 0.5’ unnamed tributary to Unclassified 041201010204 Originates within WA6. Leopard frog clay Low Lake Erie (Lithobates pipiens) observed utilizing the stream. Unnamed tributary to SA7 has a low flow and approximately 4 feet unnamed tributary to wide. The bank height is approximately 6 Pomfret SA7 23 of 30 4’ 0.5’ 0.5-1’ Silt/clay Unclassified Perennial- low flow 041201010204 Little Canadaway inches. Originates off ROW, crosses access road. No aquatic fauna were observed. Unnamed tributary to SA8 has a moderate flow and is approximately Perennial unnamed tributary to 35 feet wide. The bank height is approximately Pomfret SA8 23 of 30 35’ 0.5-1’ 0.5’ Sand Unclassified low to medium 041201010204 Little Canadaway 0.5-1 foot. Originates off ROW. No aquatic flow fauna observed. Unnamed tributary to The substrate consists of rock and cobble with Cobble, gravel, unnamed tributary to Perennial – steady some sand. SA9 is approximately 8 feet wide Pomfret SA9 23 of 30 8’ 1-4’ 0.5’ C 041201010204 sand Little Canadaway flow with a top of bank of approximately 1-4 feet. Drains majority of ROW. The substrate of SA10 consists of gravel and Unnamed tributary to larger stones throughout. SA10 is unnamed tributary to Perennial Moderate approximately 4-8 feet wide with a bank height Pomfret SA10 24 of 30 4-8’ 3-7’ 0.5’ Gravel and cobble Unclassified 041201010204 Little Canadaway flow of approximately 3-7 feet. The stream is terraced. Small drainage ways flow into SA10. Seeps drain adjacent area.

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Table 3: Streams within Project Right-Of-Way

Stream Field Map Sheet No. Bank Bank Height Depth Stream Watershed Town Streambed Waterbody Name Flow Status Description Designation (App. A) Width (Ft) (Ft) (Ft) Classification 1 (HUC12) Unnamed tributary to unnamed tributary to Intermittent Pomfret SA11 24 of 30 6’ 3’ 1-2” Gravel and cobble Unclassified 041201010204 Little Canadaway Low

The substrate of SA12 consists of primarily Unnamed tributary to 75% Gravel gravel with some sand. SA12 is approximately unnamed tributary to Intermittent Pomfret SA12 24 of 30 1-5’ 5” 2” 20% Sand Unclassified 041201010204 1-5 feet wide with a bank height of Little Canadaway Low 5% Silt/clay approximately 5 inches. SA12 drains into

WA9. No aquatic fauna was observed. The substrate of SA13 consists primarily of Unnamed tributary to sand. No water was observed during the 90% Sand unnamed tributary to Intermittent No investigation. SA13 appears to drain surface Pomfret SA13 27 of 30 1-4’ 8” 3” Unclassified 050100020301 10% Gravel Bear Lake flow water from WA12. SA13 is approximately 1-4 feet wide with a bank height of approximately 8 inches. No aquatic fauna was observed. SB1 is approximately 2-6 feet wide with a bank Unnamed tributary to height of 2-5 feet. Incised channel, dredged Perennial Pomfret SB1 13 of 30 2-6’ 2-5’ 0.5’ Silt/clay Lake Erie C 041201010203 with spoils along bank, flowing north from Moderate under I-90. The spoil line of dredged material is along the top of the bank. Flows through culvert and from ROW N/NW into wetland outside survey corridor. SB2 is a Unnamed tributary to an small intermittent channel with approximately Intermittent Pomfret SB2 20 of 30 3’ 3’ 1” Silt/gravel unnamed tributary to Unclassified 041201010204 6-8% slope with gravel substrate and has Riffle/pool Lake Erie developed a riffle-pool. SB2 crosses the ROW via a culvert and has a hydrological connection to WB5. In deep gorge (100’) in mature forest, overflow channel along toe of slope. SB3 has a defined Gravel/cobble, Little Canadaway Creek Perennial Pomfret SB3 21 of 30 30’ 4’ 6” C 041201010204 pool-run-riffle pattern with pool depths of Gravel bars present Riffle / pool approximately 2 feet and less during observation. The left descending bank on the

4-22 July 2014 Dunkirk Natural Gas Pipeline Project Wetland Delineation Report

Table 3: Streams within Project Right-Of-Way

Stream Field Map Sheet No. Bank Bank Height Depth Stream Watershed Town Streambed Waterbody Name Flow Status Description Designation (App. A) Width (Ft) (Ft) (Ft) Classification 1 (HUC12) south shore has a small floodplain bench and has a steep vertical face. Tributary to Little SB4 is a tributary to SB4 (Little Canadaway) Intermittent Pomfret SB4 21 of 30 5’ 2-4’ 0.5’ cobble Canadaway C 041201010204 with a >10% gradient and a pool-run-riffle

pattern. The substrate of SB5 consists of gravel and cobble. The channel drops approximately 10 feet as it flows through the survey area and has step pools of approximately 1 foot deep. Gravel bars are located within the stream. Stream does not appear to support fish (none were observed) Gravel/cobble/ Unnamed tributary to Perennial Green frogs (Lithobates clamitans) were Pomfret SB5 19 of 30 5’ 3’ 0.5-1’ bedrock, Gravel C 041201010204 Lake Erie Step pools observed. A 24” culvert servicing ROW bars present flowing out of pasture. Algae growth on the bottom of the stream caused by adjacent pasture and lack of shade. The eastern end of the stream inside the survey corridor has a bedrock substrate. SB5 appears to originate at a pond on the eastern edge of the survey corridor. Flows west through Maple forest. Channel is Unnamed tributary to approximately 3-6 feet wide with past-riffle- Silt/gravel/ unnamed tributary to Ephemeral Pomfret SB6 23 of 30 3-4’ 2’ 0 Unclassified 041201010204 pool regime. Riffles defined by tree roots and cobble Little Canadaway Riffle/pool leaf litter catching on the tree roots. Substrate

consists of silt with some gravel. Unnamed tributary to Flows NE from WB6 in a gully into wetland unnamed tributary to Intermittent WB7. Has a hydrologic connection to SB8. Pomfret SB7 22 of 30 6’ 5’ 0 Cobble/gravel Unclassified 041201010204 Little Canadaway Low flow SB7 is approximately 6 feet wide with a bank height of approximately 5 feet. Unnamed tributary to SB8 flows west and has a silt gravel substrate. Silt/gravel/ unnamed tributary to Perennial The stream has a thick algal growth on bottom. Pomfret SB8 22 of 30 20’ 3’ 1” Unclassified 041201010204 cobble Little Canadaway Low Originates in forested wetland to east of survey. SB8 receives fine sediment from adjacent

4-23 July 2014 Dunkirk Natural Gas Pipeline Project Wetland Delineation Report

Table 3: Streams within Project Right-Of-Way

Stream Field Map Sheet No. Bank Bank Height Depth Stream Watershed Town Streambed Waterbody Name Flow Status Description Designation (App. A) Width (Ft) (Ft) (Ft) Classification 1 (HUC12) wetland. SB8 is approximately 20 feet wide with a bank height of approximately 3 feet. Begins in forested area and flows into SB10 Unnamed tributary to south downslope within the ROW through unnamed tributary to Pomfret SB9 21 of 30 5’ 1” 1” Silt/clay Unclassified Intermittent 041201010204 WB8. SB9 splits and the second channel Little Canadaway becomes diffused within wetland SB10. There

is a hydrological connection to SB4. SB10 is approximately 0.5 feet wide with a bank height of 0.5 feet. There is a hydrologic Tributary to Little connection to SB9. SB10 feeds WB8 and Pomfret SB10 21 of 30 0.5’ 0.5’ 1” Cobble/gravel Canadaway Unclassified Intermittent 041201010204 connects to SB4 in gorge. The substrate of

SB10 consists of cobble and gravel. No aquatic fauna was observed. SB11 is approximately 0.5-1 foot wide and Tributary to Little flows down slope through WB8. The substrate Pomfret SB11 21 of 30 0.5’ 0.5’ 1” Silt/clay Canadaway Unclassified Intermittent 041201010204 consists of silt and clay. No aquatic fauna was

observed. SB12 is a warm water stream habitat that is approximately 20 feet wide with a bank height City of of approximately 5 feet. SB12 is a wide SB12 3 of 30 20’ 5’ 3’ Silt/clay Crooked Brook C Perennial 041201010202 Dunkirk meandering stream. A culvert is located where SB12 crosses the National Grid ROW. No aquatic fauna was observed. Unnamed tributary to City of SB13 is a large stream with wide meanders SB13 4 of 30 15’ 5’ 3’ Silt/clay Crooked Brook C Perennial 041201010202 Dunkirk outside of the survey corridor indicating

SC1 is associated with WC4 and a culvert connects it under a road and a railroad. The Perennial Unnamed tributary to stream is approximately 4-6 feed wide with a Dunkirk SC1 7 of 30 4-6’ 1’ 1‘ Gravel/cobble B Low- moderate 041201010204 Canadaway Creek bank height of approximately 1 foot. SC1 is flow hydrologically connected to Canadaway Creek Lower and its tributaries.

4-24 July 2014 Dunkirk Natural Gas Pipeline Project Wetland Delineation Report

Table 3: Streams within Project Right-Of-Way

Stream Field Map Sheet No. Bank Bank Height Depth Stream Watershed Town Streambed Waterbody Name Flow Status Description Designation (App. A) Width (Ft) (Ft) (Ft) Classification 1 (HUC12) SC2 begins as a narrow channel with gravel and Unnamed tributary to an Gravel/cobble/ Intermittent cobble substrate and is approximately 2 feet Pomfret SC2 15 of 30 2’ 1-8’ 0.25-4’ unnamed tributary to Unclassified 041201010204 vegetation Low wide. The stream is winding and flows into Lake Erie SC3. The streambed is bedrock and boulders with moss growing on the streambed. SC3 is Unnamed tributary to an Perennial approximately 6 feet wide with bank height Pomfret SC3 15 and 16 of 30 6’ 3-8’ 0.5-6’ Bedrock/ boulders unnamed tributary to Unclassified 041201010204 Moderate approximately 3-8 feet high. SC3 is ford at the Lake Erie ag road. No vegetation in stream. Fish species were observed. The stream is approximately 6 feet wide with bank height of approximately 3 feet. SC4 is Unnamed tributary to an Cobble/gravel/ Intermittent associated with the adjacent fields. Drainage Pomfret SC4 15 and 16 of 30 6’ 3’ 0.25-4’ unnamed tributary to Unclassified 041201010204 bedrock Low from the field flows through SC4. There is a Lake Erie hydrological connection to SC3. Adjacent trash pile tie into stream. The stream is approximately 3 feet wide with a Unnamed tributary to an bank height of approximately 0.5 feet. SC5 Pomfret SC5 18 of 30 3’ 0.5’ 0.5’ Gravel unnamed tributary to Unclassified Perennial 041201010204 drains WC12. The area is dominated by Lake Erie common reed (Phragmites australis). The stream is approximately 2 feet wide with a Unnamed tributary to bank height of approximately .5 feet. SC6 Silt/clay/ unnamed tributary to Intermittent Pomfret SC6 29 of 30 2’ 0.5’ 0.25’ Unclassified 050100020301 drains at an old road and consists of mud and gravel Bear Lake drainage gravel substrate. There is a hydrological

connection to SC7. The stream is approximately 3 feet wide with a Unnamed Tributary to bank height of approximately 2 feet. SC7 has a Pomfret SC7 29 of 30 3-8’ 2’ 1’ Cobble/gravel A Intermittent 050100020301 Bear Lake substrate of cobble and gravel and a hydrological connection to SC6. Unnamed tributary to The stream is approximately 1 foot wide with a Pomfret SC8 27 of 30 1 0.5 0.5 Organic unnamed tributary to Unclassified Moderate 050100020301 bank height of approximately 0.5 feet. SC8 is Bear Lake associated with WC14 a palustrine

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Table 3: Streams within Project Right-Of-Way

Stream Field Map Sheet No. Bank Bank Height Depth Stream Watershed Town Streambed Waterbody Name Flow Status Description Designation (App. A) Width (Ft) (Ft) (Ft) Classification 1 (HUC12) emergent/forested wetland located in a hemlock/beech/black cherry dominated forest. SC8 is connected to WC14 by following old forested road. The steam is approximately 2-4 feet wide with a Unnamed tributary to bank height of approximately 0.5 feet. SC9 is Silt/clay, sand, unnamed tributary to associated with WC16 a palustrine forested Pomfret SC9 25 and 26 of 30 2-4’ 0.5’ 0.5’ Unclassified Perennial 050100020301 gravel Bear Lake wetland. The stream has an overflow channel and located within a yellow birch and hemlock dominated forest. The steam is approximately 2-4 feet wide with a Unnamed tributary to bank height of approximately 0.5 feet. SC10 unnamed tributary to Intermittent Low Pomfret SC10 26 of 30 2-4’ 0.5’ 0.25’ Silt/clay, sand Unclassified 050100020301 has a mud/sand substrate and is associated with Bear Lake flow WC17. SC10 is located within an ash and

yellow birch dominated forest. The steam is approximately 4 feet wide with a Unnamed tributary to bank height of approximately 0.5 feet. SC11 unnamed tributary to Perennial has a gravel/cobble stone substrate and extends Pomfret SC11 26 and 27 of 30 4’ 3 0.5 Gravel/cobble Unclassified 050100020301 Bear Lake Low along the edge of the survey area and has a hydrological connection to WC20. Associated with WC20 The steam is approximately 2 feet wide with a Unnamed tributary to bank height of approximately 0.5 feet. SC12 Pomfret SC12 30 of 30 2’ 0.5’ 0.25’ Silt/clay unnamed tributary to Unclassified Low flow 041201010202 has a mud substrate and begins in wooded area Canadaway Creek off site and continues through cleared ROW. No aquatic fauna was observed. SC101 consisted of an intermittent stream with Unnamed Tributary to Pomfret SC101 16 of 30 3’ 3” Sand/mud Unclassified Intermittent flow 041201010204 sandy/mud bank. The stream continues off site Lake Erie connected to DC6. Unnamed tributary to SC102 drains WA12 and has a hydrological Pomfret SC102 27 of 30 1’ 6” 0.5’ Silt/mud unnamed tributary to Unclassified Dry 041201010203 connection to WC105. Scoured eroded channel Bear Lake was observed. SC102 is ephemeral and no

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Table 3: Streams within Project Right-Of-Way

Stream Field Map Sheet No. Bank Bank Height Depth Stream Watershed Town Streambed Waterbody Name Flow Status Description Designation (App. A) Width (Ft) (Ft) (Ft) Classification 1 (HUC12) water was observed during the site investigation. 1NYSDEC classifies streams in order of importance and usefulness to the public. The classification “A” is assigned to waters used as a source of drinking water. A standard of (T) indicates that the water may support a trout population.

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5.0 REFERENCES

Bailey, R.G. 1995. Description of the ecoregions of the United States. Miscellaneous Publication No. 1391. Second edition, revised. Washington, DC: USDA Forest Service.

Bailey, R. G.; Avers, P. E.; King, T.; McNab, W. H., eds. 1994. Ecoregions and subregions of the United States (map). Washington, DC: USDA Forest Service. 1:7,500,000. With supplementary table of map unit descriptions, compiled and edited by W. H. McNab and R. G. Bailey.

Browne, S. et al. 1995. New York State Freshwater Wetlands Delineation Manual. New York State Department of Environmental Conservation, Division of Fish and Wildlife, Bureau of Habitat, Albany, NY.

Bryce, S.A., Griffith, G.E., Omernik, J.M., Edinger, G., Indick, S., Vargas, O., and Carlson, D., 2010, Ecoregions of New York (color poster with map descriptive text, summary tables, and photographs): Reston, Virginia, U.S. geological Survey, map scale 1:1,250,000.

Cowardin, L.M., V. Carter, F. Golet, and E. LaRoe. 1979. Classification of Wetlands and Deepwater Habitats of the United States. U.S. Fish and Wildlife Service. 103 pp.

Dickinson, N.R. 1983. A division of southern and western New York State into ecological zones. Unpublished report for NYS DEC, Wildlife Resources Center, Delmar, NY.

Federal Register. July 13, 1994. Changes in hydric soils of the United States.

Lichvar, R.W., M. Butterwick, N.C. Melvin, and W.N. Kirchner. 2014. The National Wetland Plant List: 2014 update of wetland ratings. Phytoneuron 2014-41: 1-42.

Munsell Color Company. 2009. X-Rite Munsell Soil Color Book 2009 Revised Edition.

New York State Department of Environmental Conservation [NYSDEC]. 2014. Black River Watershed. Accessed online May 20, 2014 at: http://www.dec.ny.gov/lands/48374.html.

______. No date. Environmental Resource Mapper. Accessed online May 20, 2014 at: http://www.dec.ny.gov/imsmaps/ERM/viewer.htm

U.S. Army Corps of Engineers [USACE]. 1987. Corps of Engineers Wetland Delineation Manual. Technical Report U-87-1. Waterways Experiment Station, Vicksburg, MS.

______. June 26, 2008. Regulatory Guidance Letter. Subject: Jurisdictional Determinations.

______. 2012. Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Northcentral and Northeast Region (Version 2.0). Technical Report ERDC/EL TR-12-1. U.S. Army Engineer Research and Development Center, Vicksburg, MS.

5-1 July 2014 Dunkirk Natural Gas Pipeline Project Wetland Delineation Report

U.S. Department of Agriculture, Natural Resources Conservation Service [USDA, NRCS]. 2010. Field Indicators of Hydric Soils in the United States, Version 7.0. L.M. Vasilas, G.W. Hurt, and C.V. Noble (eds.). USDA, NRCS, in cooperation with the National Technical Committee for Hydric Soils. Accessed online November 22, 2013 at: http://www.nrcs.usda.gov/Internet/FSE_DOCUMENTS/stelprdb1046970.pdf

U. S. Environmental Protection Agency and U.S. Army Corps of Engineers [EPA and USACE]. 2007. Clean Water Act Jurisdiction Following Supreme Court’s Decision in Rapanos v. United States & Carabell v. United States. June 5, 2007.

Williams, A.E. 1992. Memorandum: Clarification and Interpretation of the 1987 Manual. U.S. Army Corps of Engineers.

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APPENDIX A

RESOURCE MAPS

Appendix A July 2014 Dunkirk Natural Gas Pipeline Project Wetland Delineation Report

APPENDIX B

U.S. ARMY CORPS OF ENGINEERS WETLAND DETERMINATION DATA FORMS

Appendix B July 2014 Dunkirk Natural Gas Pipeline Project Wetland Delineation Report

APPENDIX C

RESOURCE PHOTOLOG

Appendix C July 2014