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HomeMy WebLinkAbout1.37 NH Wetlands 12.23.20 WETLAND DELINEATION REPORT NORTH HANGS RANCH GARFIELD COUNTY, COLORADO PREPARED FOR: Western Slope Materials LLC Sean Mello, General Manager PO Box 1319 Carbondale, CO 81623 November 2020 Page 2 of 18 Created by Environmental Solutions, Inc. Table of Contents Introduction .................................................................................................................................................... 3 Applicant and Property Owner ....................................................................................................................... 3 Applicant: ................................................................................................................................................... 3 Property Owner: ......................................................................................................................................... 3 Property Location Information: .................................................................................................................. 3 Site Description .............................................................................................................................................. 3 Methods .......................................................................................................................................................... 4 Results ............................................................................................................................................................ 5 Vegetation .................................................................................................................................................. 5 Hydrology ................................................................................................................................................... 7 Soils ............................................................................................................................................................ 8 Summary ........................................................................................................................................................ 8 References .....................................................................................................................................................10 LIST OF TABLES Table 1: Wetlands and Waters of the U.S. Summary .………………………………. 5 Table 2: Non-jurisdictional aquatic resources on the North Hangs Ranch parcel …… 5 Table 3: List of plant species commonly found on the North Hangs Ranch Parcel study area …………………………………………………………………………..… 6 APPENDICES APPENDIX 1: Photographic Documentation ………………………………………… 10 APPENDIX 2: Data Sheets …………………………………………………………… 13 APPENDIX 3: Map Exhibits ………………………………………………………….. 38 Figure 1: Project Vicinity Map Figure 2: JD Investigation Area Detail Page 3 of 18 Created by Environmental Solutions, Inc. WETLAND DELINEATION REPORT NORTH HANGS RANCH GARFIELD COUNTY, COLORADO Introduction Environmental Solutions, Inc. (ESI) delineated wetlands and waters of the U.S. on property owned by Western Slope Materials LLC (WSM) in Garfield County, Colorado. WSM is proposing to begin mining the property for sand and gravel resources. A large portion of the property is flood-irrigated from an extensive ditch system all of which stems from the Colorado River. This delineation was conducted within the proposed mining area to delineate jurisdictional wetlands and Waters of the U.S. subject to regulation under the Clean Water Act (CWA). Applicant and Property Owner Applicant: Sean Mello, General Manager Western Slope Materials LLC PO Box 1319 Carbondale, CO 81623 Property Owner: Same as Applicant Property Location Information: Latitude: 39.543189°N, Longitude: -107.678256°W Legal: Section 9, Township 6 South, Range 92 West, Garfield County, Colorado Address: 6533 CR 346, Silt, Colorado 81652 The property is accessed from the I-70 corridor by taking the Mamm Creek exit and turning north to the Frontage Road (CR 346). Turn right and head east on CR 346 parallel to I-70 for 2 miles. The property entrance is on the left at the end of the frontage road. The proposed gravel pit is immediately north of I-70 and south of the Colorado River approximately 1/2 mile southwest of Silt, Colorado (Figure 1), and is situated at approximately 5400 feet in elevation. Site Description The study area encompasses approximately 56 acres, much of which is flood-irrigated via an elaborate network of ditches. All of the irrigation water stems from the Colorado River. The property has historically been used for hay production and cattle grazing. Much of the property falls within the historical floodplain of the Colorado River and contains remnant cottonwood galleries and evidence of some old floodplain channels, Page 4 of 18 Created by Environmental Solutions, Inc. mainly on the northern half of the parcel, though none currently show any evidence of scouring, drift deposits, water marks or other surface hydrological evidence. Total area of aquatic resources delineated in the study area is 5.81 acres (Figure 2), consisting of palustrine emergent vegetation and open Waters. It should be noted that 0.60 acres of that total, however, occurs along the main irrigation ditch (Bernudy Ditch, WET 5) and is therefore exempt from CWA regulation according to the Preamble language for 33 CFR 328, published in Federal Register Volume 51, Number 219, published November 13, 1986 (page 41217), which states “For clarification, it should be noted that we generally do not consider the following waters to be Waters of the United States…” a) Non-tidal drainage and irrigation ditches excavated on dry land b) Artificially irrigated areas which would revert to upland if the irrigation ceased c) Artificial lakes or ponds created by excavating and/or diking dry land to collect and retain water and which are used exclusively for such purposes as stock watering, irrigation, settling basins, or rice growing d) Artificial reflecting or swimming pools or other small ornamental bodies of water created by excavating and/or diking dry land to retain water for primarily aesthetic reasons. The Bernudy Ditch is quite obviously an excavated irrigation conveyance with adjudicated water rights serving multiple properties and therefore meets the specific definition and intent of subsections (a) and (b) of the Preamble and is therefore not considered a Water of the United States. North of the Bernudy ditch in the non-irrigated portion of the property, there remain some segments of an old, shallow floodplain channel overgrown by Russian olive saplings. One section of this channel is noticeably deeper than the others and supports a thick stand of Arctic rush (WET 2), and it appears to have a subsurface connection to the river and maintained saturated soils throughout the summer of 2020. In the irrigated portion of the study area, WET 1, 3, 4 and 6 all appear to have hydrological connections to the irrigation system, and the apparent lack of connection to any natural drainages, springs, swales, or seeps calls into question the hydrology supporting these areas. However, given timeline constraints, it was beyond the scope of this study to determine whether these apparent wetland areas are solely agriculturally- induced and possibly exempt from CWA regulation. Therefore we assume some portion of the hydrology is naturally occurring and these wetland areas are jurisdictional. Photographic documentation is provided in Appendix 1. Methods All site work was completed by Steve D. Dahmer of ESI, applying methodology specified by the Corps of Engineers Wetlands Delineation Manual (1987) and the 2008 Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Arid West Region (Version 2.0). Several site visits were made throughout the growing season to monitor hydrology and plant growth. Wetland determinations at sampling points were Page 5 of 18 Created by Environmental Solutions, Inc. based on the hydrophytic vegetation dominance, the presence of hydric soils, and evidence or indications of wetland hydrology. Conditions were normal through the early growing season, but became droughty later in the summer and fall. The most recent wetland indicator plant list was used for the Arid West Region (USACE 2016). Pre-field research included reviews of historic aerial imagery from United States Geological Survey (“USGS”), Natural Resource Conservation Service (“NRCS”), the National Wetland Inventory (“NWI”), and aerial photography (Google Earth) and soils data for the area maintained by the Natural Resources Conservation Service (NRCS). On-site data collections included hand-digging study pits to inspect for hydrology and hydric soil indicators. A representative sample of these study pits were recorded on routine data forms (Appendix 2), and vegetation parameters were also recorded at each of the sampling locations. Wetland boundaries and all delineation points were recorded with a Thales GPS unit supporting sub-meter accuracy. Results The wetlands and waters delineated on the property are illustrated in Figure 2, and summarized according to aquatic resource type and Cowardin classification in Tables 1 and 2 below. Table 1: Wetlands and Waters of the U.S. delineated on the North Hangs Ranch parcel Area Name Aquatic Resource Type Status Acres WET 1 Palustrine emergent Jurisdictional 0.23 WET 2 Palustrine emergent Jurisdictional 0.10 WET 3 Palustrine emergent Jurisdictional 0.18 WET 4 Palustrine emergent Jurisdictional 0.61 WET 6 Palustrine emergent Jurisdictional 2.68 Total Jurisdictional Wetlands 3.80 WOTUS Waters of the U.S. (Colorado River) 1.41 Total Waters of the U.S. 1.41 Total Jurisdictional Area 5.21 Table 2: Non-jurisdictional aquatic resources on the North Hangs Ranch parcel Area Name Aquatic Resource Type Acres WET 5 Palustrine emergent (Bernudy Ditch-Irrigation Conveyance) 0.55 WET 5 Bernudy Ditch open channel 0.05 Total Non-JD Area 0.6 * While sampled site conditions technically meet the definition of jurisdictional wetlands within the Bernudy Ditch, it is obviously an irrigation conveyance, and is therefore non-jurisdictional according to Preamble language for 33 CFR 328, published in Federal Register Volume 51, Number 219, published November 13, 1986 (page 41217). Page 6 of 18 Created by Environmental Solutions, Inc. Vegetation The study area contains a mixture of grass-forb herbaceous vegetation in the irrigated pastures. Non-irrigated areas range from mature cottonwood galleries with shrubby mid- story and sparse herbaceous understories to very dry, sparse shrublands and grassy areas. Flood irrigation has been heavily applied on the pasture areas, resulting in some areas dominated by hydrophytes along and below the ditches. Irrigation has typically begun in mid-April and does not shut off until October in most years. Irrigation water was still being applied to the western fields at our last site visit on October 27, 2020. The dry upland areas in the northeastern portion of the property are dominated by an overstory of mature narrowleaf cottonwood (Populus angustifolia) and Fremont cottonwood (Populus fremontii) with a dense mid-story of invasive Russian olive (Elaeagnus angustifolia). The hebaceous understory is generally sparse consisting of intermediate wheatgrass (Thinopyrum intermedium), smooth brome (Bromus inermis), orchardgrass (Dactylis glomerata), globemallow (Sphaeralcea coccinea) and weedy forbs such as musk thistle (Carduus nutans), houndstongue (Cynoglossum officinale) and curlycup gumweed (Grindelia squarossa). Mesic areas receiving irrigation are dominated by thicker and more robust stands of smooth brome and orchardgrass in addition to Kentucky bluegrass (Poa pratensis), white clover (Trifolium repens) and red fescue (Festuca rubra). The ditches and over-irrigated areas are generally dominated with thick, mixed stands of redtop bentgrass (Agrostis stolonifera), Arctic rush (Juncus arcticus), small-wing sedge (Carex microptera), clustered field sedge (Carex praegracilis), inland saltgrass (Distichlis spicata) and tall scouring rush (Equisetum hyemale). Some of the lowest ditches have stands of reed canarygrass (Phalaris arundinacea), broadleaf cattail (Typha lattifolia), hardstem bulrush (Schoenoplectus acutis), water sedge (Carex aquatilis) and creeping spikerush (Eleocharis palustris). Table 3 contains a list of plants commonly encountered in the study area. Table 3: Plant species commonly found on the North Hangs Ranch study area. ID Scientific Name Common Name Indicator Status Stratum 1 Poa pratensis Kentucky Bluegrass FAC H 2 Bromis inermis Smooth Brome FACU H 3 Dactylis glomerata Orchardgrass FACU H 4 Agrostis stolonifera Redtop Bentgrass FAC H 5 Typha latifolia Broadleaf Cattail OBL H 6 Carex microptera Small-Wing Sedge FACU H 7 Carex utriculata Beaked Sedge OBL H Page 7 of 18 Created by Environmental Solutions, Inc. 8 Carex praegracilis Clustered Field Sedge FACW H 9 Equisetum hyemale Tall Scouring Rush FACW H 10 Phalaris arundinacea Reed Canarygrass FACW H 11 Eleocharis palustris Creeping Spikerush FACW H 12 Juncus arcticus Arctic Rush FACW H 13 Festuca rubra Red Fescue FAC H 14 Carex aquatilis Water Sedge OBL H 15 Populus angustifolia Narrowleaf Cottonwood FACW T 16 Elaeagnus angustifolia Russian Olive FAC T 17 Grindelia squarrosa Curly-Cup Gumweed FACU H 18 Cirsium arvense Canada Thistle FAC H 19 Sphaeralcea coccinea Orange Globemallow UPL H Hydrology Twenty-two (22) study pits were excavated across the property to specifically inspect for hydrology indicators, twelve (12) of which were recorded on Arid West data forms as representative of the study area (Appendix 2). Pits were dug along transects extending from a baseline in accordance with Level 2 procedures for areas greater than 5 acres in size. Study pits were recorded along each transect to sample each change in vegetation community, with additional exploratory pits dug between sample sites to determine the wetland/upland boundary. The hydrology on much of this site is clearly sourced from irrigation conveyances stemming from diversions from the Colorado River, which conclusion is also clearly supported by the soils data in many of the study pits. However, in some low-lying areas, there is also a significant change in the soil type and the hydrophytic vegetation community (WET 2, 4 and 6). Hydrology in this area is complex due to the plethora of irrigation laterals, and time constraints prevented making a definitive determination about the hydrology source(s) supporting the hydrophytes here. Due to the topography of these lower areas, a perennial subsurface source could not be ruled out. Therefore, given the abrupt change in soil type and vegetation community, we assumed hydrology criteria were met and included these as jurisdictional wetlands. There are no apparent springs, seeps, draws or other water sources on the site, but a definitive conclusion would require a robust hydrology study and irrigation system manipulations, which was beyond the scope of this effort. Page 8 of 18 Created by Environmental Solutions, Inc. Soils Twenty-two (22) study pits were dug by hand to evaluate the soils on the property. Results for twelve (12) representative pits were recorded on standard Arid West data forms (Appendix 2). This delineation relied upon the presence/absence of field indicators for hydric soils as set forth in the 2010 NRCS manual Field Indicators of Hydric Soils in the United States to determine whether the soils sampled contained hydric indicators. NRCS soil survey data shows three major soil types on the study area, including Wann sandy loams 1-3% slopes, Halaquepts, nearly level, and Torrifluvents, nearly level. Some small areas of Kim loam and Arvada loams are also mapped but these were not encountered in our sampling. Only the Halaquepts are listed as a potentially hydric soils and are noted to be poorly drained. The other two series are deep, well-drained soils with no restrictive features and no flooding or ponding events. Hand-dug soil pits generally confirmed the NRCS mapped types. The Wann sandy loams were consistent and generally had loam surface layers, sometimes ranging from silty loam to sandy-loam pockets. The torrifluvents were generally loam to sandy loams with deeper horizons becoming coarser with mixed gravels and cobbles. The Halaquepts were notable for their clay content and impermeability, and were abruptly dissimilar from the other soils on the property. Munsell color (moist) in upland locations ranged from 10YR 3/4 to 10YR 3/2, and remained consistent throughout the upper profile, with little or no redox features present in the upper part. Redox features encountered were consistent with historically flood- irrigated pastures common in the area, with 1-5% of the pedon showing redox concentrations along pore linings, but no reduced matrix, gleying, muck or other indicators met. In short, extensive flood irrigation has caused some redox features to begin forming, but the seasonal application of water has not occurred long enough from a geological standpoint to meet minimum hydric soil indicators. The identified wetland areas were markedly different, mostly comprised of halaquepts. These areas generally had a value and chroma of 7.5YR 3/2 at the surface with clay loam to silty clay loam material underlain with a heavier clay that generally had a value and chroma of Gley 1 3/N and often 10-20% redox concentrations along pore linings (2.5YR 4/6). These pits met indicator A11, depleted below dark surface. Summary ESI delineated at total of 3.8 acres of jurisdictional palustrine emergent (PEM) wetlands on the North Hangs Ranch study area. An additional 0.55 acres of PEM wetland vegetation occurs along the excavated Bernudy Ditch (WET 5), but are not jurisdictional because it is an irrigation conveyance as defined by Preamble language in Section 404 of CWA and are therefore not considered jurisdictional. Waters of the U.S. (WOTUS) identified in the study area were in the Colorado River proper on the northwest corner of the property and covered 1.41 acres. There are no other springs, seeps or streams evident on the parcel. The identified jurisdictional wetland areas WET 1, 3, 4 and 6 are unquestionably enhanced by irrigation water, and it is possible these sites are Page 9 of 18 Created by Environmental Solutions, Inc. agriculturally-induced. However, a definitive determination would require a robust hydrology study to include examination of potential subsurface sources and manipulation of the existing flood irrigation system during the growing season, which was beyond the scope of this report. Given the presence of both vegetation and soil parameters, hydrology was assumed and we therefore included WET 1, 3, 4 and 6 as a jurisdictional wetland areas. Only WET 2 is free from irrigation influence and appears to have a clear subsurface connection to the Colorado River. Page 10 of 18 Created by Environmental Solutions, Inc. References Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe, 1979. Classification of wetlands and deepwater habitats of the United States. U.S. Fish and Wildlife Service. FWS/OBS-79 Washington, D.C. Culver, D. and J. Lemly. Colorado Natural Heritage Program. 2013. Field Guide to Colorado’s Wetland Plants. Printed by Vision Graphics, Loveland, CO. 694 pp. U.S. Army Corps of Engineers (USACE). 1987. Wetland Delineation Manual. Environmental Laboratory: Waterways Experiments Station, Vicksburg, MS. U.S. Army Corps of Engineers (USACE). 2008. Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Arid West Region (Version 2.0). ed. J.S. Wakely, R.W. Lichvar, and C.V. Noble. ERDC/EL TR-10-3. Vicksburg, MS: U.S. Army Engineer Research and Development Center. U.S. Army Corps of Engineers (USACE). 2016. Western Mountains, Valleys & Coast 2016 Regional Wetland Plant List. Lichvar, R.W., D.L. Banks, W.N. Kirchner, and N.C. Melvin. The National Wetland Plant List: 2016 wetland ratings. Phytoneuron 2016:30: 1-17. U.S. Department of Agriculture. Natural Resource Conservation Service (NRCS). 2010. Field Indicators of Hydric Soils in the United States, A Guide for Identifying and Delineating Hydric Soils. Version 7.0. Page 11 of 18 Created by Environmental Solutions, Inc. Appendix 1: Photographic Documentation Photo 1: North Hangs Ranch study area facing east along concrete irrigation lateral. Colorado River is in background, flowing R-L, and I-70 is just out of photo to right. Photo 2: Bernudy Ditch, facing west, which dissects study area from east to west. Page 12 of 18 Created by Environmental Solutions, Inc. Photo 3: Study pit SP-1 dug in irrigated field between irrigation laterals, typical of Wann sandy loams on the study area. Photo 4: Study pit SP-3 showing redox features and heavy clay-loam material typical of Halaquepts soils on the study area. Page 13 of 18 Created by Environmental Solutions, Inc. Appendix 2: Data Sheets WETLAND DETERMINATION DATA FORM - Arid West Region Project/Site Hangs Ranch City/County Silt/Garfield Sampling Date 4-20-20 Applicant/Owner Western Slope Materials State CO Sampling Point SP-1 Investigator S. Dahmer Section, Township, Range Sec 9, T6S R92W Landform terrace (hillslope, terrace, etc.) Local relief convex (concave, convex, none) Slope (%) <1 Datum Subregion (LRR) D Lat. Long. Soil Map Unit Name Wann sandy loam 1-3% slope NWI Classification Are climatic/hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in remarks) Are “Normal Circumstances” present? Yes No Are Vegetation , Soil , or Hydrology significantly disturbed? Yes No Are Vegetation , Soil , or Hydrology naturally problematic? Yes No (If needed, explain any answers in Remarks) SUMMARY OF FINDINGS – Attach site map showing point locations, transects, important features, etc. Hydrophytic Vegetation Present? Yes No Is the Sampled Area within a Wetland? Yes No Hydric Soil Present? Yes No Wetland Hydrology Present? Yes No Remarks: Pit on south end of T1, clearly upland area; irrigated pasture VEGETATION Tree Stratum (Use scientific names) Absolute % Cover Dominant Species? Indicator Status Dominance Test worksheet 1. Ulmus pumila 20 Y UPL Number of Dominant Species That Are OBL, FACW, or FAC 1 (A) 2. 3. Total Number of Dominant Species Across All Strata 4 (B) 4. Total Cover 20 Percent of Dominant Species That Are OBL, FACW, or FAC 25 (A/B) Sapling/Shrub Stratum Prevalence Index worksheet 1. Total % Cover of: Multiply by: 2. OBL species x 1= 3. FACW species x 2= 4. FAC species x 3= 5. FACU species x 4= Total Cover UPL species x 5= Herb Stratum Column Totals: (A) (B) Prevalence Index = B/A = 1. Dactylis glomerata 25 Y FACU Hydrophytic Vegetation Indicators: 2. Bromus inermis 20 Y FACU Dominance Test is > 50% 3. Poa pratensis 20 Y FAC Prevalence Index is < 3.0 4. Taraxacum officinale 10 N FACU Morphological Adaptations1 (Provide supporting . data in Remarks or on a separate sheet) 5. Medicago sativa 7 N UPL 6. Distichlis spicata 5 N FAC Problematic Hydrophytic Vegetation1 (Explain) 7. 8. 1 Indicators of hydric soil and wetland hydrology must be present. Total Cover 87 20% = 17.4; 50% = 43.5 Woody Vine Stratum 1. Hydrophytic Vegetation Present? Yes No 2. Total Cover % Bare Ground in Herb Stratum % Cover of Biotic Crust Remarks: US Army Corps of Engineers Arid West – Version 11-1-2006 SOIL Sampling Point SP-1 Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth (inches) Matrix . Color (moist) % Redox Features . Color (moist) % Type1 Loc2 Texture Remarks 0-2 10YR 3/2 100 Sandy Loam 2-8 10YR 3/3 100 fine sandy loam 8-17 10 YR 3/3 95 2.5YR 3/6 5 C PL fine sandy silt 1Type C=Concentration D=Depletion RM=Reduced Matrix 2Location PL=Pore Lining RC= Root Channel M= Matrix Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Histosol (A1) Histic Epipedon (A2) Black Histic (A3) Hydrogen Sulfide (A4) Stratified Layers (A5) (LRR C) 1 cm Muck (A9) (LRR D) Depleted below dark surface (A11) Thick Dark Surface (A12) Sandy Mucky Mineral (S1) Sandy Gleyed Matrix (S4) Sandy Redox (SS) Stripped Matrix (SS) Loamy Mucky Mineral (F1) Loamy Gleyed Matrix (F2) Depleted Matrix (F3) Redox Dark Surface (F6) Depleted Dark Surface (F7) Redox Depressions (F8) Vernal Pools (F9) Indicators for Problematic Hydric Soils3 1 cm Muck (A9) (LRR C) 2 cm Muck (A10) (LRR B) Reduced Vertic (F18) Red Parent Material (TF2) Other (Explain in remarks) 3Indicators of hydrophytic vegetation and wetland hydrology must be present. Restrictive Layer (If present): Type: none Depth (inches): Hydric Soil Present? Yes No Remarks: no indicators; scattered cobble on surface HYDROLOGY Wetland Hydrology Indicators: Primary Indicators (any one indicator is sufficient) Secondary Indicators (2 or more required) Surface Water (A1) Salt Crust (B11) Water Marks (B1) (Riverine) High Water Table (A2) Biotic Crust (B12) Sediment Deposits (B2) (Riverine) Saturation (A3) Aquatic Invertebrates (B13) Drift Deposits (B3) (Riverine) Water Marks (B1) (Nonriverine) Hydrogen Sulfide Odor (C1) Drainage Patterns (B10) Sediment Deposits (B2) (Nonriverine) Oxidized Rhizospheres along Living Roots (C3) Dry-Season Water Table (C2) Drift Deposits (B3) (Nonriverine) Presence of Reduced Iron (C4) Thin Muck Surface (C7) Surface Soil Cracks (B6) Recent Iron Reduction in Plowed Soils (C6) Crayfish Burrows (C8) Iundation Visible on Aerial Imagery (B7) Other (Explain in Remarks) Saturation Visible on Aerial Imagery (C9) Water-Stained Leaves (B9) Shallow Aquitard (D3) FAC-Neutral Test (D5) Field Observations: Wetland Hydrology Present Yes No Surface Water Present? Yes No Depth (inches) Water Table Present? Yes No Depth (inches) Saturation Present? Yes No Depth (inches) (includes capillary fringe) Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: no indicators US Army Corps of Engineers Arid West – Version 11-1-2006 WETLAND DETERMINATION DATA FORM - Arid West Region Project/Site Hangs Ranch City/County Silt/Garfield Sampling Date 4-20-20 Applicant/Owner Western Slope Materials State CO Sampling Point SP-2 Investigator S. Dahmer Section, Township, Range Sec 9, T6S R92W Landform terrace (hillslope, terrace, etc.) Local relief none (concave, convex, none) Slope (%) <1 Datum Subregion (LRR) D Lat. Long. Soil Map Unit Name Wann sandy loam 1-3% slope NWI Classification Are climatic/hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in remarks) Are “Normal Circumstances” present? Yes No Are Vegetation , Soil , or Hydrology significantly disturbed? Yes No Are Vegetation , Soil , or Hydrology naturally problematic? Yes No (If needed, explain any answers in Remarks) SUMMARY OF FINDINGS – Attach site map showing point locations, transects, important features, etc. Hydrophytic Vegetation Present? Yes No Is the Sampled Area within a Wetland? Yes No Hydric Soil Present? Yes No Wetland Hydrology Present? Yes No Remarks: T1, southern end, between concrete ditch and south of main ditch VEGETATION Tree Stratum (Use scientific names) Absolute % Cover Dominant Species? Indicator Status Dominance Test worksheet 1. Number of Dominant Species That Are OBL, FACW, or FAC 2 (A) 2. 3. Total Number of Dominant Species Across All Strata 3 (B) 4. Total Cover Percent of Dominant Species That Are OBL, FACW, or FAC 66 (A/B) Sapling/Shrub Stratum Prevalence Index worksheet 1. Elaeagnus angustifolia 5 Y FAC Total % Cover of: Multiply by: 2. OBL species x 1= 0 3. FACW species x 2= 0 4. FAC species 45 x 3= 135 5. FACU species x 4= 0 Total Cover 5 UPL species 40 x 5= 200 Herb Stratum Column Totals: 85 (A) 335 (B) Prevalence Index = B/A = 3.94 1. Distichlis spicata 40 Y FAC Hydrophytic Vegetation Indicators: 2. Thinopyrum intermedium 30 Y UPL Dominance Test is > 50% 3. Kochia scoparia 10 N UPL Prevalence Index is < 3.0 4. Morphological Adaptations1 (Provide supporting . data in Remarks or on a separate sheet) 5. 6. Problematic Hydrophytic Vegetation1 (Explain) 7. 8. 1 Indicators of hydric soil and wetland hydrology must be present. Total Cover 80 20% = 16; 50% = 40 Woody Vine Stratum 1. Hydrophytic Vegetation Present? Yes No 2. Total Cover % Bare Ground in Herb Stratum % Cover of Biotic Crust Remarks: problem veg--dominace and prevalence index disagree; one FAC spp is deep-rooted non-native on noxious weed list; FAC-neutral indicates upland US Army Corps of Engineers Arid West – Version 11-1-2006 SOIL Sampling Point SP-2 Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth (inches) Matrix . Color (moist) % Redox Features . Color (moist) % Type1 Loc2 Texture Remarks 0-6 10YR 3/4 100 Fine sandy loam 6-17 10YR 3/4 85 2.5YR 4/6 15 C PL Fine sandy silt 1Type C=Concentration D=Depletion RM=Reduced Matrix 2Location PL=Pore Lining RC= Root Channel M= Matrix Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Histosol (A1) Histic Epipedon (A2) Black Histic (A3) Hydrogen Sulfide (A4) Stratified Layers (A5) (LRR C) 1 cm Muck (A9) (LRR D) Depleted below dark surface (A11) Thick Dark Surface (A12) Sandy Mucky Mineral (S1) Sandy Gleyed Matrix (S4) Sandy Redox (SS) Stripped Matrix (SS) Loamy Mucky Mineral (F1) Loamy Gleyed Matrix (F2) Depleted Matrix (F3) Redox Dark Surface (F6) Depleted Dark Surface (F7) Redox Depressions (F8) Vernal Pools (F9) Indicators for Problematic Hydric Soils3 1 cm Muck (A9) (LRR C) 2 cm Muck (A10) (LRR B) Reduced Vertic (F18) Red Parent Material (TF2) Other (Explain in remarks) 3Indicators of hydrophytic vegetation and wetland hydrology must be present. Restrictive Layer (If present): Type: none Depth (inches): Hydric Soil Present? Yes No Remarks: no indicators; flood-irrigated pasture HYDROLOGY Wetland Hydrology Indicators: Primary Indicators (any one indicator is sufficient) Secondary Indicators (2 or more required) Surface Water (A1) Salt Crust (B11) Water Marks (B1) (Riverine) High Water Table (A2) Biotic Crust (B12) Sediment Deposits (B2) (Riverine) Saturation (A3) Aquatic Invertebrates (B13) Drift Deposits (B3) (Riverine) Water Marks (B1) (Nonriverine) Hydrogen Sulfide Odor (C1) Drainage Patterns (B10) Sediment Deposits (B2) (Nonriverine) Oxidized Rhizospheres along Living Roots (C3) Dry-Season Water Table (C2) Drift Deposits (B3) (Nonriverine) Presence of Reduced Iron (C4) Thin Muck Surface (C7) Surface Soil Cracks (B6) Recent Iron Reduction in Plowed Soils (C6) Crayfish Burrows (C8) Iundation Visible on Aerial Imagery (B7) Other (Explain in Remarks) Saturation Visible on Aerial Imagery (C9) Water-Stained Leaves (B9) Shallow Aquitard (D3) FAC-Neutral Test (D5) Field Observations: Wetland Hydrology Present Yes No Surface Water Present? Yes No Depth (inches) Water Table Present? Yes No Depth (inches) Saturation Present? Yes No Depth (inches) (includes capillary fringe) Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: no indicators US Army Corps of Engineers Arid West – Version 11-1-2006 WETLAND DETERMINATION DATA FORM - Arid West Region Project/Site Hangs Ranch City/County Silt/Garfield Sampling Date 4-20-20 Applicant/Owner Western Slope Materials State CO Sampling Point SP-3 Investigator S. Dahmer Section, Township, Range Sec 9, T6S R92W Landform ditch (hillslope, terrace, etc.) Local relief concave (concave, convex, none) Slope (%) <2 Datum Subregion (LRR) D Lat. Long. Soil Map Unit Name Halaquepts, nearly level NWI Classification Are climatic/hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in remarks) Are “Normal Circumstances” present? Yes No Are Vegetation , Soil , or Hydrology significantly disturbed? Yes No Are Vegetation , Soil , or Hydrology naturally problematic? Yes No (If needed, explain any answers in Remarks) SUMMARY OF FINDINGS – Attach site map showing point locations, transects, important features, etc. Hydrophytic Vegetation Present? Yes No Is the Sampled Area within a Wetland? Yes No Hydric Soil Present? Yes No Wetland Hydrology Present? Yes No Remarks: Pit is in the excavated main irrigation ditch; site meets wetland criteria, but is obviously an agricultural irrigation conveyance VEGETATION Tree Stratum (Use scientific names) Absolute % Cover Dominant Species? Indicator Status Dominance Test worksheet 1. Elaeagnus angustifolia 10 Y FAC Number of Dominant Species That Are OBL, FACW, or FAC 5 (A) 2. 3. Total Number of Dominant Species Across All Strata 5 (B) 4. Total Cover 10 Percent of Dominant Species That Are OBL, FACW, or FAC 100 (A/B) Sapling/Shrub Stratum Prevalence Index worksheet 1. Elaeagnus angustifolia 15 Y FAC Total % Cover of: Multiply by: 2. Tamarix parviflora 5 Y FAC OBL species x 1= 3. FACW species x 2= 4. FAC species x 3= 5. FACU species x 4= Total Cover 20 UPL species x 5= Herb Stratum Column Totals: (A) (B) Prevalence Index = B/A = 1. Juncus arcticus 40 Y FACW Hydrophytic Vegetation Indicators: 2. Asclepias speciosa 20 Y FAC Dominance Test is > 50% 3. Carex aquatilis 10 N OBL Prevalence Index is < 3.0 4. Carduus nutans 8 N FACU Morphological Adaptations1 (Provide supporting . data in Remarks or on a separate sheet) 5. Thinopyrum intermedium 5 N UPL 6. Problematic Hydrophytic Vegetation1 (Explain) 7. 8. 1 Indicators of hydric soil and wetland hydrology must be present. Total Cover 83 20% = 16.6; 50% = 41.5 Woody Vine Stratum 1. Hydrophytic Vegetation Present? Yes No 2. Total Cover % Bare Ground in Herb Stratum % Cover of Biotic Crust Remarks: US Army Corps of Engineers Arid West – Version 11-1-2006 SOIL Sampling Point SP-3 Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth (inches) Matrix . Color (moist) % Redox Features . Color (moist) % Type1 Loc2 Texture Remarks 0-6 7.5YR 3/2 90 2.5YR 4/6 10 C PL silty clay loam 6-12 7.5YR 3/2 60 2.5YR 4/6 20 C PL silty clay loam 6-12 " " Gley 1 3/N 20 D M silty clay loam 1Type C=Concentration D=Depletion RM=Reduced Matrix 2Location PL=Pore Lining RC= Root Channel M= Matrix Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Histosol (A1) Histic Epipedon (A2) Black Histic (A3) Hydrogen Sulfide (A4) Stratified Layers (A5) (LRR C) 1 cm Muck (A9) (LRR D) Depleted below dark surface (A11) Thick Dark Surface (A12) Sandy Mucky Mineral (S1) Sandy Gleyed Matrix (S4) Sandy Redox (SS) Stripped Matrix (SS) Loamy Mucky Mineral (F1) Loamy Gleyed Matrix (F2) Depleted Matrix (F3) Redox Dark Surface (F6) Depleted Dark Surface (F7) Redox Depressions (F8) Vernal Pools (F9) Indicators for Problematic Hydric Soils3 1 cm Muck (A9) (LRR C) 2 cm Muck (A10) (LRR B) Reduced Vertic (F18) Red Parent Material (TF2) Other (Explain in remarks) 3Indicators of hydrophytic vegetation and wetland hydrology must be present. Restrictive Layer (If present): Type: none Depth (inches): Hydric Soil Present? Yes No Remarks: pit is in a major irrigation ditch/excavated and ~ 6' deep HYDROLOGY Wetland Hydrology Indicators: Primary Indicators (any one indicator is sufficient) Secondary Indicators (2 or more required) Surface Water (A1) Salt Crust (B11) Water Marks (B1) (Riverine) High Water Table (A2) Biotic Crust (B12) Sediment Deposits (B2) (Riverine) Saturation (A3) Aquatic Invertebrates (B13) Drift Deposits (B3) (Riverine) Water Marks (B1) (Nonriverine) Hydrogen Sulfide Odor (C1) Drainage Patterns (B10) Sediment Deposits (B2) (Nonriverine) Oxidized Rhizospheres along Living Roots (C3) Dry-Season Water Table (C2) Drift Deposits (B3) (Nonriverine) Presence of Reduced Iron (C4) Thin Muck Surface (C7) Surface Soil Cracks (B6) Recent Iron Reduction in Plowed Soils (C6) Crayfish Burrows (C8) Iundation Visible on Aerial Imagery (B7) Other (Explain in Remarks) Saturation Visible on Aerial Imagery (C9) Water-Stained Leaves (B9) Shallow Aquitard (D3) FAC-Neutral Test (D5) Field Observations: Wetland Hydrology Present Yes No Surface Water Present? Yes No Depth (inches) Water Table Present? Yes No Depth (inches) Saturation Present? Yes No Depth (inches) 10 (includes capillary fringe) Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: hydrology appears to be from irrig. headgate; may need hydrology study to determine any river influence US Army Corps of Engineers Arid West – Version 11-1-2006 WETLAND DETERMINATION DATA FORM - Arid West Region Project/Site Hangs Ranch City/County Silt/Garfield Sampling Date 4-20-20 Applicant/Owner Western Slope Materials State CO Sampling Point SP-4 Investigator S. Dahmer Section, Township, Range Sec 9, T6S R92W Landform terrace (hillslope, terrace, etc.) Local relief none (concave, convex, none) Slope (%) <1 Datum Subregion (LRR) D Lat. Long. Soil Map Unit Name Torrifluvents, nearly level NWI Classification Are climatic/hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in remarks) Are “Normal Circumstances” present? Yes No Are Vegetation , Soil , or Hydrology significantly disturbed? Yes No Are Vegetation , Soil , or Hydrology naturally problematic? Yes No (If needed, explain any answers in Remarks) SUMMARY OF FINDINGS – Attach site map showing point locations, transects, important features, etc. Hydrophytic Vegetation Present? Yes No Is the Sampled Area within a Wetland? Yes No Hydric Soil Present? Yes No Wetland Hydrology Present? Yes No Remarks: Pit is on north end of T-1 in dry, mature cottonwood gallery; many dead-standing trees VEGETATION Tree Stratum (Use scientific names) Absolute % Cover Dominant Species? Indicator Status Dominance Test worksheet 1. Populus angustifolia 40 Y FACW Number of Dominant Species That Are OBL, FACW, or FAC 3 (A) 2. Populus fremontii 30 Y NI 3. Total Number of Dominant Species Across All Strata 6 (B) 4. Total Cover 70 20% = 14; 50% = 35 Percent of Dominant Species That Are OBL, FACW, or FAC 50 (A/B) Sapling/Shrub Stratum Prevalence Index worksheet 1. Elaeagnus angustifolia 35 Y FAC Total % Cover of: Multiply by: 2. OBL species x 1= 3. FACW species 40 x 2= 80 4. FAC species 65 x 3= 195 5. FACU species 31 x 4= 124 Total Cover 35 UPL species 25 x 5= 125 Herb Stratum Column Totals: 161 (A) 524 (B) Prevalence Index = B/A = 3.25 1. Poa pratensis 20 Y FAC Hydrophytic Vegetation Indicators: 2. Dactylis glomerata 18 Y FACU Dominance Test is > 50% 3. Thinopyron intermedium 15 Y UPL Prevalence Index is < 3.0 4. Distichlis spicata 10 N FAC Morphological Adaptations1 (Provide supporting . data in Remarks or on a separate sheet) 5. Cynoglossum officinale 10 N UPL 6. Carduus nutans 8 N FACU Problematic Hydrophytic Vegetation1 (Explain) 7. Carduus acanthoides 5 N FACU 8. 1 Indicators of hydric soil and wetland hydrology must be present. Total Cover 86 20% = 17.2; 50% = 43 Woody Vine Stratum 1. Hydrophytic Vegetation Present? Yes No 2. Total Cover % Bare Ground in Herb Stratum % Cover of Biotic Crust Remarks: herbaceous layer indicates upland as does FAC-neutral; only FACW spp is deep-rooted, mature trees, many dead-standing US Army Corps of Engineers Arid West – Version 11-1-2006 SOIL Sampling Point SP-4 Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth (inches) Matrix . Color (moist) % Redox Features . Color (moist) % Type1 Loc2 Texture Remarks 0-2 10YR 3/3 100 silty loam 2-12 10YR 3/3 100 fine sandy loam, gravels/cobbles deep 1Type C=Concentration D=Depletion RM=Reduced Matrix 2Location PL=Pore Lining RC= Root Channel M= Matrix Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Histosol (A1) Histic Epipedon (A2) Black Histic (A3) Hydrogen Sulfide (A4) Stratified Layers (A5) (LRR C) 1 cm Muck (A9) (LRR D) Depleted below dark surface (A11) Thick Dark Surface (A12) Sandy Mucky Mineral (S1) Sandy Gleyed Matrix (S4) Sandy Redox (SS) Stripped Matrix (SS) Loamy Mucky Mineral (F1) Loamy Gleyed Matrix (F2) Depleted Matrix (F3) Redox Dark Surface (F6) Depleted Dark Surface (F7) Redox Depressions (F8) Vernal Pools (F9) Indicators for Problematic Hydric Soils3 1 cm Muck (A9) (LRR C) 2 cm Muck (A10) (LRR B) Reduced Vertic (F18) Red Parent Material (TF2) Other (Explain in remarks) 3Indicators of hydrophytic vegetation and wetland hydrology must be present. Restrictive Layer (If present): Type: none Depth (inches): Hydric Soil Present? Yes No Remarks: no indicators HYDROLOGY Wetland Hydrology Indicators: Primary Indicators (any one indicator is sufficient) Secondary Indicators (2 or more required) Surface Water (A1) Salt Crust (B11) Water Marks (B1) (Riverine) High Water Table (A2) Biotic Crust (B12) Sediment Deposits (B2) (Riverine) Saturation (A3) Aquatic Invertebrates (B13) Drift Deposits (B3) (Riverine) Water Marks (B1) (Nonriverine) Hydrogen Sulfide Odor (C1) Drainage Patterns (B10) Sediment Deposits (B2) (Nonriverine) Oxidized Rhizospheres along Living Roots (C3) Dry-Season Water Table (C2) Drift Deposits (B3) (Nonriverine) Presence of Reduced Iron (C4) Thin Muck Surface (C7) Surface Soil Cracks (B6) Recent Iron Reduction in Plowed Soils (C6) Crayfish Burrows (C8) Iundation Visible on Aerial Imagery (B7) Other (Explain in Remarks) Saturation Visible on Aerial Imagery (C9) Water-Stained Leaves (B9) Shallow Aquitard (D3) FAC-Neutral Test (D5) Field Observations: Wetland Hydrology Present Yes No Surface Water Present? Yes No Depth (inches) Water Table Present? Yes No Depth (inches) Saturation Present? Yes No Depth (inches) (includes capillary fringe) Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: no indicators US Army Corps of Engineers Arid West – Version 11-1-2006 WETLAND DETERMINATION DATA FORM - Arid West Region Project/Site Hangs Ranch City/County Silt/Garfield Sampling Date 4-20-20 Applicant/Owner Western Slope Materials State CO Sampling Point SP-5 Investigator S. Dahmer Section, Township, Range Sec 9, T6S R92W Landform terrace (hillslope, terrace, etc.) Local relief none (concave, convex, none) Slope (%) <1 Datum Subregion (LRR) D Lat. Long. Soil Map Unit Name Wann sandy loam 1-3% slopes NWI Classification Are climatic/hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in remarks) Are “Normal Circumstances” present? Yes No Are Vegetation , Soil , or Hydrology significantly disturbed? Yes No Are Vegetation , Soil , or Hydrology naturally problematic? Yes No (If needed, explain any answers in Remarks) SUMMARY OF FINDINGS – Attach site map showing point locations, transects, important features, etc. Hydrophytic Vegetation Present? Yes No Is the Sampled Area within a Wetland? Yes No Hydric Soil Present? Yes No Wetland Hydrology Present? Yes No Remarks: pit on south end of T-2 in flood-irrigated pasture, below concrete ditch and lateral VEGETATION Tree Stratum (Use scientific names) Absolute % Cover Dominant Species? Indicator Status Dominance Test worksheet 1. Number of Dominant Species That Are OBL, FACW, or FAC 1 (A) 2. 3. Total Number of Dominant Species Across All Strata 3 (B) 4. Total Cover 20% = ; 50% = Percent of Dominant Species That Are OBL, FACW, or FAC 33 (A/B) Sapling/Shrub Stratum Prevalence Index worksheet 1. Total % Cover of: Multiply by: 2. OBL species x 1= 3. FACW species x 2= 4. FAC species x 3= 5. FACU species x 4= Total Cover UPL species x 5= Herb Stratum Column Totals: (A) (B) Prevalence Index = B/A = 1. Dactylis glomerata 25 Y FACU Hydrophytic Vegetation Indicators: 2. Bromus inermis 20 Y FACU Dominance Test is > 50% 3. Poa pratensis 20 Y FAC Prevalence Index is < 3.0 4. Taraxacum officinale 10 N FACU Morphological Adaptations1 (Provide supporting . data in Remarks or on a separate sheet) 5. Distichlis spicata 8 N FAC 6. Problematic Hydrophytic Vegetation1 (Explain) 7. 8. 1 Indicators of hydric soil and wetland hydrology must be present. Total Cover 83 20% = 16.6; 50% = 41.5 Woody Vine Stratum 1. Hydrophytic Vegetation Present? Yes No 2. Total Cover % Bare Ground in Herb Stratum % Cover of Biotic Crust Remarks: clearly upland US Army Corps of Engineers Arid West – Version 11-1-2006 SOIL Sampling Point SP-5 Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth (inches) Matrix . Color (moist) % Redox Features . Color (moist) % Type1 Loc2 Texture Remarks 0-2 10YR 3/2 100 sandy loam 2-12 10YR 3/3 100 fine sandy loam 12-17 10YR 3/3 96 2.5YR 3/6 4 C PL fine sany loam, some gravels 1Type C=Concentration D=Depletion RM=Reduced Matrix 2Location PL=Pore Lining RC= Root Channel M= Matrix Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Histosol (A1) Histic Epipedon (A2) Black Histic (A3) Hydrogen Sulfide (A4) Stratified Layers (A5) (LRR C) 1 cm Muck (A9) (LRR D) Depleted below dark surface (A11) Thick Dark Surface (A12) Sandy Mucky Mineral (S1) Sandy Gleyed Matrix (S4) Sandy Redox (SS) Stripped Matrix (SS) Loamy Mucky Mineral (F1) Loamy Gleyed Matrix (F2) Depleted Matrix (F3) Redox Dark Surface (F6) Depleted Dark Surface (F7) Redox Depressions (F8) Vernal Pools (F9) Indicators for Problematic Hydric Soils3 1 cm Muck (A9) (LRR C) 2 cm Muck (A10) (LRR B) Reduced Vertic (F18) Red Parent Material (TF2) Other (Explain in remarks) 3Indicators of hydrophytic vegetation and wetland hydrology must be present. Restrictive Layer (If present): Type: none Depth (inches): Hydric Soil Present? Yes No Remarks: no indicators HYDROLOGY Wetland Hydrology Indicators: Primary Indicators (any one indicator is sufficient) Secondary Indicators (2 or more required) Surface Water (A1) Salt Crust (B11) Water Marks (B1) (Riverine) High Water Table (A2) Biotic Crust (B12) Sediment Deposits (B2) (Riverine) Saturation (A3) Aquatic Invertebrates (B13) Drift Deposits (B3) (Riverine) Water Marks (B1) (Nonriverine) Hydrogen Sulfide Odor (C1) Drainage Patterns (B10) Sediment Deposits (B2) (Nonriverine) Oxidized Rhizospheres along Living Roots (C3) Dry-Season Water Table (C2) Drift Deposits (B3) (Nonriverine) Presence of Reduced Iron (C4) Thin Muck Surface (C7) Surface Soil Cracks (B6) Recent Iron Reduction in Plowed Soils (C6) Crayfish Burrows (C8) Iundation Visible on Aerial Imagery (B7) Other (Explain in Remarks) Saturation Visible on Aerial Imagery (C9) Water-Stained Leaves (B9) Shallow Aquitard (D3) FAC-Neutral Test (D5) Field Observations: Wetland Hydrology Present Yes No Surface Water Present? Yes No Depth (inches) Water Table Present? Yes No Depth (inches) Saturation Present? Yes No Depth (inches) (includes capillary fringe) Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: no indicators US Army Corps of Engineers Arid West – Version 11-1-2006 WETLAND DETERMINATION DATA FORM - Arid West Region Project/Site Hangs Ranch City/County Silt/Garfield Sampling Date 4-20-20 Applicant/Owner Western Slope Materials State CO Sampling Point SP-6 Investigator S. Dahmer Section, Township, Range Sec 9, T6S R92W Landform terrace (hillslope, terrace, etc.) Local relief concave (concave, convex, none) Slope (%) <1 Datum Subregion (LRR) D Lat. Long. Soil Map Unit Name Wann sandy loam 1-3% slopes NWI Classification Are climatic/hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in remarks) Are “Normal Circumstances” present? Yes No Are Vegetation , Soil , or Hydrology significantly disturbed? Yes No Are Vegetation , Soil , or Hydrology naturally problematic? Yes No (If needed, explain any answers in Remarks) SUMMARY OF FINDINGS – Attach site map showing point locations, transects, important features, etc. Hydrophytic Vegetation Present? Yes No Is the Sampled Area within a Wetland? Yes No Hydric Soil Present? Yes No Wetland Hydrology Present? Yes No Remarks: pit in flood irrigated field below 2nd lateral VEGETATION Tree Stratum (Use scientific names) Absolute % Cover Dominant Species? Indicator Status Dominance Test worksheet 1. Number of Dominant Species That Are OBL, FACW, or FAC 1 (A) 2. 3. Total Number of Dominant Species Across All Strata 2 (B) 4. Total Cover 20% = ; 50% = Percent of Dominant Species That Are OBL, FACW, or FAC 50 (A/B) Sapling/Shrub Stratum Prevalence Index worksheet 1. Total % Cover of: Multiply by: 2. OBL species x 1= 3. FACW species 25 x 2= 50 4. FAC species 50 x 3= 150 5. FACU species x 4= Total Cover UPL species 30 x 5= 150 Herb Stratum Column Totals: 105 (A) 350 (B) Prevalence Index = B/A = 3.33 1. Distichlis spicata 50 Y FAC Hydrophytic Vegetation Indicators: 2. Thinopyrum intermedium 30 Y UPL Dominance Test is > 50% 3. Agrostis stolonifera 25 N FACW Prevalence Index is < 3.0 4. Morphological Adaptations1 (Provide supporting . data in Remarks or on a separate sheet) 5. 6. Problematic Hydrophytic Vegetation1 (Explain) 7. 8. 1 Indicators of hydric soil and wetland hydrology must be present. Total Cover 105 20% = 21; 50% = 52.5 Woody Vine Stratum 1. Hydrophytic Vegetation Present? Yes No 2. Total Cover % Bare Ground in Herb Stratum % Cover of Biotic Crust Remarks: US Army Corps of Engineers Arid West – Version 11-1-2006 SOIL Sampling Point SP-6 Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth (inches) Matrix . Color (moist) % Redox Features . Color (moist) % Type1 Loc2 Texture Remarks 0-1 10YR 2/1 100 loam 1-4 10YR 5/3 100 fine sandy loam 4-15 10YR 3/3 90 2.5YR 4/6 10 C PL fine sandy silt 1Type C=Concentration D=Depletion RM=Reduced Matrix 2Location PL=Pore Lining RC= Root Channel M= Matrix Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Histosol (A1) Histic Epipedon (A2) Black Histic (A3) Hydrogen Sulfide (A4) Stratified Layers (A5) (LRR C) 1 cm Muck (A9) (LRR D) Depleted below dark surface (A11) Thick Dark Surface (A12) Sandy Mucky Mineral (S1) Sandy Gleyed Matrix (S4) Sandy Redox (SS) Stripped Matrix (SS) Loamy Mucky Mineral (F1) Loamy Gleyed Matrix (F2) Depleted Matrix (F3) Redox Dark Surface (F6) Depleted Dark Surface (F7) Redox Depressions (F8) Vernal Pools (F9) Indicators for Problematic Hydric Soils3 1 cm Muck (A9) (LRR C) 2 cm Muck (A10) (LRR B) Reduced Vertic (F18) Red Parent Material (TF2) Other (Explain in remarks) 3Indicators of hydrophytic vegetation and wetland hydrology must be present. Restrictive Layer (If present): Type: none Depth (inches): Hydric Soil Present? Yes No Remarks: no indicators HYDROLOGY Wetland Hydrology Indicators: Primary Indicators (any one indicator is sufficient) Secondary Indicators (2 or more required) Surface Water (A1) Salt Crust (B11) Water Marks (B1) (Riverine) High Water Table (A2) Biotic Crust (B12) Sediment Deposits (B2) (Riverine) Saturation (A3) Aquatic Invertebrates (B13) Drift Deposits (B3) (Riverine) Water Marks (B1) (Nonriverine) Hydrogen Sulfide Odor (C1) Drainage Patterns (B10) Sediment Deposits (B2) (Nonriverine) Oxidized Rhizospheres along Living Roots (C3) Dry-Season Water Table (C2) Drift Deposits (B3) (Nonriverine) Presence of Reduced Iron (C4) Thin Muck Surface (C7) Surface Soil Cracks (B6) Recent Iron Reduction in Plowed Soils (C6) Crayfish Burrows (C8) Iundation Visible on Aerial Imagery (B7) Other (Explain in Remarks) Saturation Visible on Aerial Imagery (C9) Water-Stained Leaves (B9) Shallow Aquitard (D3) FAC-Neutral Test (D5) Field Observations: Wetland Hydrology Present Yes No Surface Water Present? Yes No Depth (inches) Water Table Present? Yes No Depth (inches) Saturation Present? Yes No Depth (inches) (includes capillary fringe) Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: no indicators US Army Corps of Engineers Arid West – Version 11-1-2006 WETLAND DETERMINATION DATA FORM - Arid West Region Project/Site Hangs Ranch City/County Silt/Garfield Sampling Date 4-20-20 Applicant/Owner Western Slope Materials State CO Sampling Point SP-7 Investigator S. Dahmer Section, Township, Range Sec 9, T6S R92W Landform terrace (hillslope, terrace, etc.) Local relief convex (concave, convex, none) Slope (%) <1 Datum Subregion (LRR) D Lat. Long. Soil Map Unit Name Torrifluvents, nearly level NWI Classification Are climatic/hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in remarks) Are “Normal Circumstances” present? Yes No Are Vegetation , Soil , or Hydrology significantly disturbed? Yes No Are Vegetation , Soil , or Hydrology naturally problematic? Yes No (If needed, explain any answers in Remarks) SUMMARY OF FINDINGS – Attach site map showing point locations, transects, important features, etc. Hydrophytic Vegetation Present? Yes No Is the Sampled Area within a Wetland? Yes No Hydric Soil Present? Yes No Wetland Hydrology Present? Yes No Remarks: pit on central T-2, somewhat elevated bench just south of main irrigation canal VEGETATION Tree Stratum (Use scientific names) Absolute % Cover Dominant Species? Indicator Status Dominance Test worksheet 1. Number of Dominant Species That Are OBL, FACW, or FAC 1 (A) 2. 3. Total Number of Dominant Species Across All Strata 3 (B) 4. Total Cover 20% = ; 50% = Percent of Dominant Species That Are OBL, FACW, or FAC 33 (A/B) Sapling/Shrub Stratum Prevalence Index worksheet 1. Total % Cover of: Multiply by: 2. OBL species x 1= 3. FACW species x 2= 4. FAC species x 3= 5. FACU species x 4= Total Cover UPL species x 5= Herb Stratum Column Totals: (A) (B) Prevalence Index = B/A = 1. Distichlis spicata 40 Y FAC Hydrophytic Vegetation Indicators: 2. Thinopyrum intermedium 30 Y UPL Dominance Test is > 50% 3. Kochia scoparia 20 Y UPL Prevalence Index is < 3.0 4. Morphological Adaptations1 (Provide supporting . data in Remarks or on a separate sheet) 5. 6. Problematic Hydrophytic Vegetation1 (Explain) 7. 8. 1 Indicators of hydric soil and wetland hydrology must be present. Total Cover 90 20% = 18; 50% = 45 Woody Vine Stratum 1. Hydrophytic Vegetation Present? Yes No 2. Total Cover % Bare Ground in Herb Stratum % Cover of Biotic Crust Remarks: US Army Corps of Engineers Arid West – Version 11-1-2006 SOIL Sampling Point SP-7 Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth (inches) Matrix . Color (moist) % Redox Features . Color (moist) % Type1 Loc2 Texture Remarks 0-10 10YR 3/4 100 fine sandy loam 10-16 10YR 3/4 95 2.5YR 4/6 5 C PL sandy loam 1Type C=Concentration D=Depletion RM=Reduced Matrix 2Location PL=Pore Lining RC= Root Channel M= Matrix Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Histosol (A1) Histic Epipedon (A2) Black Histic (A3) Hydrogen Sulfide (A4) Stratified Layers (A5) (LRR C) 1 cm Muck (A9) (LRR D) Depleted below dark surface (A11) Thick Dark Surface (A12) Sandy Mucky Mineral (S1) Sandy Gleyed Matrix (S4) Sandy Redox (SS) Stripped Matrix (SS) Loamy Mucky Mineral (F1) Loamy Gleyed Matrix (F2) Depleted Matrix (F3) Redox Dark Surface (F6) Depleted Dark Surface (F7) Redox Depressions (F8) Vernal Pools (F9) Indicators for Problematic Hydric Soils3 1 cm Muck (A9) (LRR C) 2 cm Muck (A10) (LRR B) Reduced Vertic (F18) Red Parent Material (TF2) Other (Explain in remarks) 3Indicators of hydrophytic vegetation and wetland hydrology must be present. Restrictive Layer (If present): Type: none Depth (inches): Hydric Soil Present? Yes No Remarks: no indicators HYDROLOGY Wetland Hydrology Indicators: Primary Indicators (any one indicator is sufficient) Secondary Indicators (2 or more required) Surface Water (A1) Salt Crust (B11) Water Marks (B1) (Riverine) High Water Table (A2) Biotic Crust (B12) Sediment Deposits (B2) (Riverine) Saturation (A3) Aquatic Invertebrates (B13) Drift Deposits (B3) (Riverine) Water Marks (B1) (Nonriverine) Hydrogen Sulfide Odor (C1) Drainage Patterns (B10) Sediment Deposits (B2) (Nonriverine) Oxidized Rhizospheres along Living Roots (C3) Dry-Season Water Table (C2) Drift Deposits (B3) (Nonriverine) Presence of Reduced Iron (C4) Thin Muck Surface (C7) Surface Soil Cracks (B6) Recent Iron Reduction in Plowed Soils (C6) Crayfish Burrows (C8) Iundation Visible on Aerial Imagery (B7) Other (Explain in Remarks) Saturation Visible on Aerial Imagery (C9) Water-Stained Leaves (B9) Shallow Aquitard (D3) FAC-Neutral Test (D5) Field Observations: Wetland Hydrology Present Yes No Surface Water Present? Yes No Depth (inches) Water Table Present? Yes No Depth (inches) Saturation Present? Yes No Depth (inches) (includes capillary fringe) Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: no indicators US Army Corps of Engineers Arid West – Version 11-1-2006 WETLAND DETERMINATION DATA FORM - Arid West Region Project/Site Hangs Ranch City/County Silt/Garfield Sampling Date 4-20-20 Applicant/Owner Western Slope Materials State CO Sampling Point SP-8 Investigator S. Dahmer Section, Township, Range Sec 9, T6S R92W Landform terrace (hillslope, terrace, etc.) Local relief none (concave, convex, none) Slope (%) <1 Datum Subregion (LRR) D Lat. Long. Soil Map Unit Name Torrifluvents, nearly level NWI Classification Are climatic/hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in remarks) Are “Normal Circumstances” present? Yes No Are Vegetation , Soil , or Hydrology significantly disturbed? Yes No Are Vegetation , Soil , or Hydrology naturally problematic? Yes No (If needed, explain any answers in Remarks) SUMMARY OF FINDINGS – Attach site map showing point locations, transects, important features, etc. Hydrophytic Vegetation Present? Yes No Is the Sampled Area within a Wetland? Yes No Hydric Soil Present? Yes No Wetland Hydrology Present? Yes No Remarks: Pit is on north end of T-2 on a broad bench, but well above river VEGETATION Tree Stratum (Use scientific names) Absolute % Cover Dominant Species? Indicator Status Dominance Test worksheet 1. Populus angustifolia 40 Y FACW Number of Dominant Species That Are OBL, FACW, or FAC 6 (A) 2. Elaeagnus angustifolia 40 Y FAC 3. Total Number of Dominant Species Across All Strata 7 (B) 4. Total Cover 80 20% = 14; 50% = 35 Percent of Dominant Species That Are OBL, FACW, or FAC 86 (A/B) Sapling/Shrub Stratum Prevalence Index worksheet 1. Elaeagnus angustifolia 35 Y FAC Total % Cover of: Multiply by: 2. OBL species x 1= 3. FACW species 58 x 2= 116 4. FAC species 110 x 3= 330 5. FACU species 7 x 4= 28 Total Cover 35 UPL species 15 x 5= 75 Herb Stratum Column Totals: 190 (A) 549 (B) Prevalence Index = B/A = 2.88 1. Poa pratensis 20 Y FAC Hydrophytic Vegetation Indicators: 2. Juncus arcticus 18 Y FACW Dominance Test is > 50% 3. Thinopyron intermedium 15 Y UPL Prevalence Index is < 3.0 4. Distichlis spicata 15 Y FAC Morphological Adaptations1 (Provide supporting . data in Remarks or on a separate sheet) 5. Carduus nutans 7 N FACU 6. Problematic Hydrophytic Vegetation1 (Explain) 7. 8. 1 Indicators of hydric soil and wetland hydrology must be present. Total Cover 75 20% = 15; 50% = 37.5 Woody Vine Stratum 1. Hydrophytic Vegetation Present? Yes No 2. Total Cover % Bare Ground in Herb Stratum % Cover of Biotic Crust Remarks: herbaceous layer marginal; deep-rooted trees drive dominance test US Army Corps of Engineers Arid West – Version 11-1-2006 SOIL Sampling Point SP-8 Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth (inches) Matrix . Color (moist) % Redox Features . Color (moist) % Type1 Loc2 Texture Remarks 0-2 10YR 3/3 100 silty loam 2-12 10YR 3/3 100 fine sandy loam, gravels/cobbles deeper 1Type C=Concentration D=Depletion RM=Reduced Matrix 2Location PL=Pore Lining RC= Root Channel M= Matrix Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Histosol (A1) Histic Epipedon (A2) Black Histic (A3) Hydrogen Sulfide (A4) Stratified Layers (A5) (LRR C) 1 cm Muck (A9) (LRR D) Depleted below dark surface (A11) Thick Dark Surface (A12) Sandy Mucky Mineral (S1) Sandy Gleyed Matrix (S4) Sandy Redox (SS) Stripped Matrix (SS) Loamy Mucky Mineral (F1) Loamy Gleyed Matrix (F2) Depleted Matrix (F3) Redox Dark Surface (F6) Depleted Dark Surface (F7) Redox Depressions (F8) Vernal Pools (F9) Indicators for Problematic Hydric Soils3 1 cm Muck (A9) (LRR C) 2 cm Muck (A10) (LRR B) Reduced Vertic (F18) Red Parent Material (TF2) Other (Explain in remarks) 3Indicators of hydrophytic vegetation and wetland hydrology must be present. Restrictive Layer (If present): Type: none Depth (inches): Hydric Soil Present? Yes No Remarks: no indicators HYDROLOGY Wetland Hydrology Indicators: Primary Indicators (any one indicator is sufficient) Secondary Indicators (2 or more required) Surface Water (A1) Salt Crust (B11) Water Marks (B1) (Riverine) High Water Table (A2) Biotic Crust (B12) Sediment Deposits (B2) (Riverine) Saturation (A3) Aquatic Invertebrates (B13) Drift Deposits (B3) (Riverine) Water Marks (B1) (Nonriverine) Hydrogen Sulfide Odor (C1) Drainage Patterns (B10) Sediment Deposits (B2) (Nonriverine) Oxidized Rhizospheres along Living Roots (C3) Dry-Season Water Table (C2) Drift Deposits (B3) (Nonriverine) Presence of Reduced Iron (C4) Thin Muck Surface (C7) Surface Soil Cracks (B6) Recent Iron Reduction in Plowed Soils (C6) Crayfish Burrows (C8) Iundation Visible on Aerial Imagery (B7) Other (Explain in Remarks) Saturation Visible on Aerial Imagery (C9) Water-Stained Leaves (B9) Shallow Aquitard (D3) FAC-Neutral Test (D5) Field Observations: Wetland Hydrology Present Yes No Surface Water Present? Yes No Depth (inches) Water Table Present? Yes No Depth (inches) Saturation Present? Yes No Depth (inches) (includes capillary fringe) Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: no indicators US Army Corps of Engineers Arid West – Version 11-1-2006 WETLAND DETERMINATION DATA FORM - Arid West Region Project/Site Hangs Ranch City/County Silt/Garfield Sampling Date 5-15-20 Applicant/Owner Western Slope Materials State CO Sampling Point SP-9 Investigator S. Dahmer Section, Township, Range Sec 9, T6S R92W Landform terrace (hillslope, terrace, etc.) Local relief none (concave, convex, none) Slope (%) <1 Datum Subregion (LRR) D Lat. Long. Soil Map Unit Name Wann sandy loam 1-3% slope NWI Classification Are climatic/hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in remarks) Are “Normal Circumstances” present? Yes No Are Vegetation , Soil , or Hydrology significantly disturbed? Yes No Are Vegetation , Soil , or Hydrology naturally problematic? Yes No (If needed, explain any answers in Remarks) SUMMARY OF FINDINGS – Attach site map showing point locations, transects, important features, etc. Hydrophytic Vegetation Present? Yes No Is the Sampled Area within a Wetland? Yes No Hydric Soil Present? Yes No Wetland Hydrology Present? Yes No Remarks: T3, south end irrig. pasture below lateral ditch; ditch wet and irrig. plastic obviously moved recently VEGETATION Tree Stratum (Use scientific names) Absolute % Cover Dominant Species? Indicator Status Dominance Test worksheet 1. Number of Dominant Species That Are OBL, FACW, or FAC 1 (A) 2. 3. Total Number of Dominant Species Across All Strata 4 (B) 4. Total Cover Percent of Dominant Species That Are OBL, FACW, or FAC 25 (A/B) Sapling/Shrub Stratum Prevalence Index worksheet 1. Total % Cover of: Multiply by: 2. OBL species x 1= 3. FACW species x 2= 4. FAC species x 3= 5. FACU species x 4= Total Cover UPL species x 5= Herb Stratum Column Totals: (A) (B) Prevalence Index = B/A = 1. Bromus inermis 25 Y FACU Hydrophytic Vegetation Indicators: 2. Dactylis glomerata 25 Y FACU Dominance Test is > 50% 3. Poa pratensis 20 Y FAC Prevalence Index is < 3.0 4. Phleum pratense 20 Y FACU Morphological Adaptations1 (Provide supporting . data in Remarks or on a separate sheet) 5. Taraxacum officinale 10 N FACU 6. Problematic Hydrophytic Vegetation1 (Explain) 7. 8. 1 Indicators of hydric soil and wetland hydrology must be present. Total Cover 80 20% = 20; 50% = 50 Woody Vine Stratum 1. Hydrophytic Vegetation Present? Yes No 2. Total Cover % Bare Ground in Herb Stratum % Cover of Biotic Crust Remarks: US Army Corps of Engineers Arid West – Version 11-1-2006 SOIL Sampling Point SP-9 Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth (inches) Matrix . Color (moist) % Redox Features . Color (moist) % Type1 Loc2 Texture Remarks 0-3 10YR 3/2 100 loam 3-10 10YR 3/3 100 Fine sandy loam 10-17 10YR 3/3 98 2.5YR 4/6 2 C PL fine sandy loam 1Type C=Concentration D=Depletion RM=Reduced Matrix 2Location PL=Pore Lining RC= Root Channel M= Matrix Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Histosol (A1) Histic Epipedon (A2) Black Histic (A3) Hydrogen Sulfide (A4) Stratified Layers (A5) (LRR C) 1 cm Muck (A9) (LRR D) Depleted below dark surface (A11) Thick Dark Surface (A12) Sandy Mucky Mineral (S1) Sandy Gleyed Matrix (S4) Sandy Redox (SS) Stripped Matrix (SS) Loamy Mucky Mineral (F1) Loamy Gleyed Matrix (F2) Depleted Matrix (F3) Redox Dark Surface (F6) Depleted Dark Surface (F7) Redox Depressions (F8) Vernal Pools (F9) Indicators for Problematic Hydric Soils3 1 cm Muck (A9) (LRR C) 2 cm Muck (A10) (LRR B) Reduced Vertic (F18) Red Parent Material (TF2) Other (Explain in remarks) 3Indicators of hydrophytic vegetation and wetland hydrology must be present. Restrictive Layer (If present): Type: none Depth (inches): Hydric Soil Present? Yes No Remarks: no indicators; flood-irrigated pasture HYDROLOGY Wetland Hydrology Indicators: Primary Indicators (any one indicator is sufficient) Secondary Indicators (2 or more required) Surface Water (A1) Salt Crust (B11) Water Marks (B1) (Riverine) High Water Table (A2) Biotic Crust (B12) Sediment Deposits (B2) (Riverine) Saturation (A3) Aquatic Invertebrates (B13) Drift Deposits (B3) (Riverine) Water Marks (B1) (Nonriverine) Hydrogen Sulfide Odor (C1) Drainage Patterns (B10) Sediment Deposits (B2) (Nonriverine) Oxidized Rhizospheres along Living Roots (C3) Dry-Season Water Table (C2) Drift Deposits (B3) (Nonriverine) Presence of Reduced Iron (C4) Thin Muck Surface (C7) Surface Soil Cracks (B6) Recent Iron Reduction in Plowed Soils (C6) Crayfish Burrows (C8) Iundation Visible on Aerial Imagery (B7) Other (Explain in Remarks) Saturation Visible on Aerial Imagery (C9) Water-Stained Leaves (B9) Shallow Aquitard (D3) FAC-Neutral Test (D5) Field Observations: Wetland Hydrology Present Yes No Surface Water Present? Yes No Depth (inches) Water Table Present? Yes No Depth (inches) Saturation Present? Yes No Depth (inches) 11 (includes capillary fringe) Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: Pasture has clearly been flood irrigated within the past week; water on different field to east now; saturation in this case is not an indicator US Army Corps of Engineers Arid West – Version 11-1-2006 WETLAND DETERMINATION DATA FORM - Arid West Region Project/Site Hangs Ranch City/County Silt/Garfield Sampling Date 5-15-20 Applicant/Owner Western Slope Materials State CO Sampling Point SP-10 Investigator S. Dahmer Section, Township, Range Sec 9, T6S R92W Landform swa;e (hillslope, terrace, etc.) Local relief concave (concave, convex, none) Slope (%) <1 Datum Subregion (LRR) D Lat. Long. Soil Map Unit Name Halaquepts, nearly level NWI Classification Are climatic/hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in remarks) Are “Normal Circumstances” present? Yes No Are Vegetation , Soil , or Hydrology significantly disturbed? Yes No Are Vegetation , Soil , or Hydrology naturally problematic? Yes No (If needed, explain any answers in Remarks) SUMMARY OF FINDINGS – Attach site map showing point locations, transects, important features, etc. Hydrophytic Vegetation Present? Yes No Is the Sampled Area within a Wetland? Yes No Hydric Soil Present? Yes No Wetland Hydrology Present? Yes No Remarks: Pit is in low swale adjacent to main irrig. ditch; unclear if natural feature or excavated, but much deeper than surrounding area; obviously receives irrig. conveyance water, but possible river connection? VEGETATION Tree Stratum (Use scientific names) Absolute % Cover Dominant Species? Indicator Status Dominance Test worksheet 1. Elaeagnus angustifolia 10 Y FAC Number of Dominant Species That Are OBL, FACW, or FAC 4 (A) 2. 3. Total Number of Dominant Species Across All Strata 4 (B) 4. Total Cover 10 Percent of Dominant Species That Are OBL, FACW, or FAC 100 (A/B) Sapling/Shrub Stratum Prevalence Index worksheet 1. Elaeagnus angustifolia 15 Y FAC Total % Cover of: Multiply by: 2. OBL species x 1= 3. FACW species x 2= 4. FAC species x 3= 5. FACU species x 4= Total Cover 15 UPL species x 5= Herb Stratum Column Totals: (A) (B) Prevalence Index = B/A = 1. Typha latifolia 70 Y OBL Hydrophytic Vegetation Indicators: 2. Scirpus acutus 30 Y OBL Dominance Test is > 50% 3. Phalaris arundinacea 10 N OBL Prevalence Index is < 3.0 4. Morphological Adaptations1 (Provide supporting . data in Remarks or on a separate sheet) 5. 6. Problematic Hydrophytic Vegetation1 (Explain) 7. 8. 1 Indicators of hydric soil and wetland hydrology must be present. Total Cover 110 20% = 22; 50% = 55 Woody Vine Stratum 1. Hydrophytic Vegetation Present? Yes No 2. Total Cover % Bare Ground in Herb Stratum % Cover of Biotic Crust Remarks: US Army Corps of Engineers Arid West – Version 11-1-2006 SOIL Sampling Point SP-10 Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth (inches) Matrix . Color (moist) % Redox Features . Color (moist) % Type1 Loc2 Texture Remarks 0-5 7.5YR 3/2 90 2.5YR 4/6 10 C PL silty clay loam 5-12 7.5YR 3/2 60 2.5YR 4/6 20 C PL clay 5-12 " 40 Gley 1 3/N 20 D M clay 1Type C=Concentration D=Depletion RM=Reduced Matrix 2Location PL=Pore Lining RC= Root Channel M= Matrix Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Histosol (A1) Histic Epipedon (A2) Black Histic (A3) Hydrogen Sulfide (A4) Stratified Layers (A5) (LRR C) 1 cm Muck (A9) (LRR D) Depleted below dark surface (A11) Thick Dark Surface (A12) Sandy Mucky Mineral (S1) Sandy Gleyed Matrix (S4) Sandy Redox (SS) Stripped Matrix (SS) Loamy Mucky Mineral (F1) Loamy Gleyed Matrix (F2) Depleted Matrix (F3) Redox Dark Surface (F6) Depleted Dark Surface (F7) Redox Depressions (F8) Vernal Pools (F9) Indicators for Problematic Hydric Soils3 1 cm Muck (A9) (LRR C) 2 cm Muck (A10) (LRR B) Reduced Vertic (F18) Red Parent Material (TF2) Other (Explain in remarks) 3Indicators of hydrophytic vegetation and wetland hydrology must be present. Restrictive Layer (If present): Type: clay Depth (inches): 5 Hydric Soil Present? Yes No Remarks: heavy clay layer is notable change from most other sampling points HYDROLOGY Wetland Hydrology Indicators: Primary Indicators (any one indicator is sufficient) Secondary Indicators (2 or more required) Surface Water (A1) Salt Crust (B11) Water Marks (B1) (Riverine) High Water Table (A2) Biotic Crust (B12) Sediment Deposits (B2) (Riverine) Saturation (A3) Aquatic Invertebrates (B13) Drift Deposits (B3) (Riverine) Water Marks (B1) (Nonriverine) Hydrogen Sulfide Odor (C1) Drainage Patterns (B10) Sediment Deposits (B2) (Nonriverine) Oxidized Rhizospheres along Living Roots (C3) Dry-Season Water Table (C2) Drift Deposits (B3) (Nonriverine) Presence of Reduced Iron (C4) Thin Muck Surface (C7) Surface Soil Cracks (B6) Recent Iron Reduction in Plowed Soils (C6) Crayfish Burrows (C8) Iundation Visible on Aerial Imagery (B7) Other (Explain in Remarks) Saturation Visible on Aerial Imagery (C9) Water-Stained Leaves (B9) Shallow Aquitard (D3) FAC-Neutral Test (D5) Field Observations: Wetland Hydrology Present Yes No Surface Water Present? Yes No Depth (inches) Water Table Present? Yes No Depth (inches) 2 Saturation Present? Yes No Depth (inches) 0 (includes capillary fringe) Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: hydrology appears to be from irrig. headgate; may need hydrology study to determine any river influence US Army Corps of Engineers Arid West – Version 11-1-2006 WETLAND DETERMINATION DATA FORM - Arid West Region Project/Site Hangs Ranch City/County Silt/Garfield Sampling Date 5-15-20 Applicant/Owner Western Slope Materials State CO Sampling Point SP-11 Investigator S. Dahmer Section, Township, Range Sec 9, T6S R92W Landform terrace (hillslope, terrace, etc.) Local relief none (concave, convex, none) Slope (%) <2 Datum Subregion (LRR) D Lat. Long. Soil Map Unit Name Torrifluvents, nearly level NWI Classification Are climatic/hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in remarks) Are “Normal Circumstances” present? Yes No Are Vegetation , Soil , or Hydrology significantly disturbed? Yes No Are Vegetation , Soil , or Hydrology naturally problematic? Yes No (If needed, explain any answers in Remarks) SUMMARY OF FINDINGS – Attach site map showing point locations, transects, important features, etc. Hydrophytic Vegetation Present? Yes No Is the Sampled Area within a Wetland? Yes No Hydric Soil Present? Yes No Wetland Hydrology Present? Yes No Remarks: Pit is north of main irrig. ditch on T-3, west side of property VEGETATION Tree Stratum (Use scientific names) Absolute % Cover Dominant Species? Indicator Status Dominance Test worksheet 1. Elaeagnus angustifolia 40 Y FAC Number of Dominant Species That Are OBL, FACW, or FAC 5 (A) 2. 3. Total Number of Dominant Species Across All Strata 6 (B) 4. Total Cover 40 20% = 14; 50% = 35 Percent of Dominant Species That Are OBL, FACW, or FAC 83 (A/B) Sapling/Shrub Stratum Prevalence Index worksheet 1. Elaeagnus angustifolia 20 Y FAC Total % Cover of: Multiply by: 2. OBL species x 1= 3. FACW species 18 x 2= 36 4. FAC species 93 x 3= 279 5. FACU species 10 x 4= 40 Total Cover 20 UPL species 15 x 5= 75 Herb Stratum Column Totals: 136 (A) 430 (B) Prevalence Index = B/A = 3.16 1. Poa pratensis 18 Y FAC Hydrophytic Vegetation Indicators: 2. Juncus arcticus 18 Y FACW Dominance Test is > 50% 3. Thinopyron intermedium 15 Y UPL Prevalence Index is < 3.0 4. Distichlis spicata 15 Y FAC Morphological Adaptations1 (Provide supporting . data in Remarks or on a separate sheet) 5. Carduus nutans 10 N FACU 6. Problematic Hydrophytic Vegetation1 (Explain) 7. 8. 1 Indicators of hydric soil and wetland hydrology must be present. Total Cover 76 20% = 15.2; 50% = 38 Woody Vine Stratum 1. Hydrophytic Vegetation Present? Yes No 2. Total Cover % Bare Ground in Herb Stratum % Cover of Biotic Crust Remarks: dominance and prevalence tests disagree; herbaceous layer marginal; deep-rooted trees drive dominance test US Army Corps of Engineers Arid West – Version 11-1-2006 SOIL Sampling Point SP-11 Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth (inches) Matrix . Color (moist) % Redox Features . Color (moist) % Type1 Loc2 Texture Remarks 0-5 10YR 3/3 100 silty loam 5-16 10YR 3/3 100 fine sandy loam, gravels/cobbles deeper 1Type C=Concentration D=Depletion RM=Reduced Matrix 2Location PL=Pore Lining RC= Root Channel M= Matrix Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Histosol (A1) Histic Epipedon (A2) Black Histic (A3) Hydrogen Sulfide (A4) Stratified Layers (A5) (LRR C) 1 cm Muck (A9) (LRR D) Depleted below dark surface (A11) Thick Dark Surface (A12) Sandy Mucky Mineral (S1) Sandy Gleyed Matrix (S4) Sandy Redox (SS) Stripped Matrix (SS) Loamy Mucky Mineral (F1) Loamy Gleyed Matrix (F2) Depleted Matrix (F3) Redox Dark Surface (F6) Depleted Dark Surface (F7) Redox Depressions (F8) Vernal Pools (F9) Indicators for Problematic Hydric Soils3 1 cm Muck (A9) (LRR C) 2 cm Muck (A10) (LRR B) Reduced Vertic (F18) Red Parent Material (TF2) Other (Explain in remarks) 3Indicators of hydrophytic vegetation and wetland hydrology must be present. Restrictive Layer (If present): Type: none Depth (inches): Hydric Soil Present? Yes No Remarks: no indicators HYDROLOGY Wetland Hydrology Indicators: Primary Indicators (any one indicator is sufficient) Secondary Indicators (2 or more required) Surface Water (A1) Salt Crust (B11) Water Marks (B1) (Riverine) High Water Table (A2) Biotic Crust (B12) Sediment Deposits (B2) (Riverine) Saturation (A3) Aquatic Invertebrates (B13) Drift Deposits (B3) (Riverine) Water Marks (B1) (Nonriverine) Hydrogen Sulfide Odor (C1) Drainage Patterns (B10) Sediment Deposits (B2) (Nonriverine) Oxidized Rhizospheres along Living Roots (C3) Dry-Season Water Table (C2) Drift Deposits (B3) (Nonriverine) Presence of Reduced Iron (C4) Thin Muck Surface (C7) Surface Soil Cracks (B6) Recent Iron Reduction in Plowed Soils (C6) Crayfish Burrows (C8) Iundation Visible on Aerial Imagery (B7) Other (Explain in Remarks) Saturation Visible on Aerial Imagery (C9) Water-Stained Leaves (B9) Shallow Aquitard (D3) FAC-Neutral Test (D5) Field Observations: Wetland Hydrology Present Yes No Surface Water Present? Yes No Depth (inches) Water Table Present? Yes No Depth (inches) Saturation Present? Yes No Depth (inches) (includes capillary fringe) Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: no indicators US Army Corps of Engineers Arid West – Version 11-1-2006 WETLAND DETERMINATION DATA FORM - Arid West Region Project/Site Hangs Ranch City/County Silt/Garfield Sampling Date 5-15-20 Applicant/Owner Western Slope Materials State CO Sampling Point SP-12 Investigator S. Dahmer Section, Township, Range Sec 9, T6S R92W Landform terrace (hillslope, terrace, etc.) Local relief none (concave, convex, none) Slope (%) <2 Datum Subregion (LRR) D Lat. Long. Soil Map Unit Name Torrifluvents, nearly level NWI Classification Are climatic/hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in remarks) Are “Normal Circumstances” present? Yes No Are Vegetation , Soil , or Hydrology significantly disturbed? Yes No Are Vegetation , Soil , or Hydrology naturally problematic? Yes No (If needed, explain any answers in Remarks) SUMMARY OF FINDINGS – Attach site map showing point locations, transects, important features, etc. Hydrophytic Vegetation Present? Yes No Is the Sampled Area within a Wetland? Yes No Hydric Soil Present? Yes No Wetland Hydrology Present? Yes No Remarks: Pit is on north end of T-3, west side of property, bench well elevated above river VEGETATION Tree Stratum (Use scientific names) Absolute % Cover Dominant Species? Indicator Status Dominance Test worksheet 1. Number of Dominant Species That Are OBL, FACW, or FAC 0 (A) 2. 3. Total Number of Dominant Species Across All Strata 5 (B) 4. Total Cover 20% = ; 50% = Percent of Dominant Species That Are OBL, FACW, or FAC 0 (A/B) Sapling/Shrub Stratum Prevalence Index worksheet 1. Chrysothamnus nauseosus 20 Y UPL Total % Cover of: Multiply by: 2. Artemisia tridentata 5 Y UPL OBL species x 1= 3. FACW species x 2= 4. FAC species x 3= 5. FACU species x 4= Total Cover 25 20% = 5 ; 50% = 12.5 UPL species x 5= Herb Stratum Column Totals: (A) (B) Prevalence Index = B/A = 1. Bromus tectorum 15 Y UPL Hydrophytic Vegetation Indicators: 2. Thinopyrum intermedium 12 Y UPL Dominance Test is > 50% 3. Carduus nutans 10 Y FACU Prevalence Index is < 3.0 4. Morphological Adaptations1 (Provide supporting . data in Remarks or on a separate sheet) 5. 6. Problematic Hydrophytic Vegetation1 (Explain) 7. 8. 1 Indicators of hydric soil and wetland hydrology must be present. Total Cover 37 20% = 7.4; 50% = 18.5 Woody Vine Stratum 1. Hydrophytic Vegetation Present? Yes No 2. Total Cover % Bare Ground in Herb Stratum % Cover of Biotic Crust Remarks: US Army Corps of Engineers Arid West – Version 11-1-2006 SOIL Sampling Point SP-12 Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth (inches) Matrix . Color (moist) % Redox Features . Color (moist) % Type1 Loc2 Texture Remarks 0-17 10YR 3/3 100 sandy loam, gravels mixed 1Type C=Concentration D=Depletion RM=Reduced Matrix 2Location PL=Pore Lining RC= Root Channel M= Matrix Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Histosol (A1) Histic Epipedon (A2) Black Histic (A3) Hydrogen Sulfide (A4) Stratified Layers (A5) (LRR C) 1 cm Muck (A9) (LRR D) Depleted below dark surface (A11) Thick Dark Surface (A12) Sandy Mucky Mineral (S1) Sandy Gleyed Matrix (S4) Sandy Redox (SS) Stripped Matrix (SS) Loamy Mucky Mineral (F1) Loamy Gleyed Matrix (F2) Depleted Matrix (F3) Redox Dark Surface (F6) Depleted Dark Surface (F7) Redox Depressions (F8) Vernal Pools (F9) Indicators for Problematic Hydric Soils3 1 cm Muck (A9) (LRR C) 2 cm Muck (A10) (LRR B) Reduced Vertic (F18) Red Parent Material (TF2) Other (Explain in remarks) 3Indicators of hydrophytic vegetation and wetland hydrology must be present. Restrictive Layer (If present): Type: none Depth (inches): Hydric Soil Present? Yes No Remarks: no indicators HYDROLOGY Wetland Hydrology Indicators: Primary Indicators (any one indicator is sufficient) Secondary Indicators (2 or more required) Surface Water (A1) Salt Crust (B11) Water Marks (B1) (Riverine) High Water Table (A2) Biotic Crust (B12) Sediment Deposits (B2) (Riverine) Saturation (A3) Aquatic Invertebrates (B13) Drift Deposits (B3) (Riverine) Water Marks (B1) (Nonriverine) Hydrogen Sulfide Odor (C1) Drainage Patterns (B10) Sediment Deposits (B2) (Nonriverine) Oxidized Rhizospheres along Living Roots (C3) Dry-Season Water Table (C2) Drift Deposits (B3) (Nonriverine) Presence of Reduced Iron (C4) Thin Muck Surface (C7) Surface Soil Cracks (B6) Recent Iron Reduction in Plowed Soils (C6) Crayfish Burrows (C8) Iundation Visible on Aerial Imagery (B7) Other (Explain in Remarks) Saturation Visible on Aerial Imagery (C9) Water-Stained Leaves (B9) Shallow Aquitard (D3) FAC-Neutral Test (D5) Field Observations: Wetland Hydrology Present Yes No Surface Water Present? Yes No Depth (inches) Water Table Present? Yes No Depth (inches) Saturation Present? Yes No Depth (inches) (includes capillary fringe) Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: no indicators US Army Corps of Engineers Arid West – Version 11-1-2006 Page 14 of 18 Created by Environmental Solutions, Inc. Appendix 3: Map Exhibits