IDENTIFIERS

Current Taxon Name (Soil Name): Fluventic Endoaquepts

OSD

Series Extent

User Site ID: S2016NM045001

User Pedon ID: S2016NM045001

Vegetation Plot ID: S2016NM045001

Lab Information:

Certified Lab Pedon Description - no

Lab Source ID - KSSL

Lab Pedon # - 16N2125

NCSS Pedon Lab Data NASIS Record ID - 87711

Print Date: 2/16/2025

LOCATION

Location In Web Soil Survey

AOI is roughly a square mile and pedon is marked in the center.

Location in SoilWeb

Location in Google Maps

Std. Latitude: 36.8700000

Std. Longitude: -108.1908000

Datum: WGS84

Map Unit: Wa—Walrees loam

State: New Mexico

County: NM045—San Juan

MLRA: 35—Colorado Plateau

Non-MLRA Soil Survey Area: NM618—San Juan County, New Mexico, Eastern Part

PEDON

Describers Name: Aaron Miller

Current Taxonomic Class: Fine-loamy, mixed, active, mesic Fluventic Endoaquepts

Current Taxon Kind: taxon above family

Pedon Record Orgin: NASIS

Dynamic Soil Properties:

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Landscape: river valley

Landform: flood-plain step

Geomorphic Component Terraces: tread

Slope Complexity: simple

Slope Shape Across: concave

Slope Shape Down: linear

Ksat Class Upper: low

Ksat Class Lower: moderately high

Drainage Class: somewhat poorly

Flooding: frequent flooding for long periods begining in may

Ponding: rare ponding for brief periods begining in may

Surface Fragments:

Benchmark Soil?: no

Wetland Information:

Cowardin Wetland System - palustrine

Cowardin Wetland Class - forested wetland

HGM Class - riverine

VEGETATION

SITE OBSERVATION

Observation Date: 6/28/2016 (actual site observation date)

Data Collector: Aaron Miller, Logan Peterson, Otto Oppenheimer

Hydrology Status: unaltered

Surface Cover Properties:

Site Obs. Cover Kind 1 - tree cover

Site Obs. Cover Kind 2 - native shrubs

Pedoderm Loose Cover Indicator - no

Drained? - no

Bedded Soil? - no

Forest Plantation? - no

Vegetation Plot Plants
Plant Symbol	Scientific Name	National Vernacular Name	Plant Type Group	Canopy Cover %	Vegetation Stata Level
ELAN POFR2 TARA ARTRW8 FONE SAEX ERAGR PASM POPR SPAI TRDU	Elaeagnus angustifolia Populus fremontii Tamarix ramosissima Artemisia tridentata ssp. wyomingensis Forestiera neomexicana Salix exigua Eragrostis Pascopyrum smithii Poa pratensis Sporobolus airoides Tragopogon dubius	Russian olive Fremont cottonwood saltcedar Wyoming big sagebrush — narrowleaf willow lovegrass western wheatgrass Kentucky bluegrass alkali sacaton yellow salsify	tree tree tree shrub/vine shrub/vine shrub/vine grass/grasslike grass/grasslike grass/grasslike grass/grasslike forb	20 50 50 — — 60 — 4 2 10 —	— — — — — — — — — — —

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
ochric epipedon cambic horizon redox concentrations redox depletions with chroma 2 or less	0—13 13—56 13—150 13—93	—13— —- —- —-

Setting and Climate
Slope	Slope Length USLE	Upslope Length	Elev.	Corr. Elev	Aspect	MAP	REAP	FFD	MAAT	MSAT	MWAT	MAST	MSST	MWST	MFFP	PE Index	Climate Station ID	Climate Station Name	Climate Station Type
%	m				degrees	mm	mm		C						mm
1	—	—	1700	—	180	—	—	—	—	—	—	—	—	—	—	—	—	—	—

Ay—0 to 5 centimeters (0.0 to 2.0 inches); brown (10YR 4/3), brown (10YR 5/3), dry; silty clay loam; 5 percent sand; 58 percent silt; 37 percent clay; moderate medium granular structure; hard, friable, moderately sticky, very plastic; 3.0 very fine roots and 3.0 medium roots and 1.0 fine roots; 10.0 very fine interstitial and 10.0 fine interstitial pores; ; 10 percent medium irregular noncoherent cemented light gray (10YR 7/1), moist, gypsum crystals, unspecified throughout; fragments; slight effervescence, by hcl, 1n; clear smooth boundary. Lab sample # 16N09684; dry when described; observed in pit, large or quarry

A—5 to 13 centimeters (2.0 to 5.1 inches); brown (10YR 4/3), brown (10YR 5/3), dry; silty clay loam; 5 percent sand; 56 percent silt; 39 percent clay; weak fine subangular blocky parts to moderate medium granular structure; hard, friable, moderately sticky, very plastic; 2.0 very fine roots and 0.1 medium roots and 0.5 fine roots; 5.0 very fine interstitial and 5.0 fine interstitial pores; fragments; slight effervescence, by hcl, 1n; diffuse smooth boundary. Lab sample # 16N09685; dry when described; observed in pit, large or quarry

Byg1—13 to 39 centimeters (5.1 to 15.4 inches); grayish brown (10YR 5/2), pale brown (10YR 6/3), dry; loam; 15 percent sand; 69 percent silt; 26 percent clay; moderate medium subangular blocky structure; hard, friable, slightly sticky, moderately plastic; 0.2 medium roots and 0.1 coarse roots; 5.0 very fine interstitial pores; 1 percent medium spherical moderately coherent cemented ironstone nodules throughout and 2 percent medium irregular noncoherent cemented brownish yellow (10YR 6/6), moist, iron-manganese masses throughout and 25 percent medium irregular noncoherent cemented dark grayish brown (10YR 4/2), moist, iron depletions throughout; 2 percent medium irregular noncoherent cemented white (10YR 8/1), moist, gypsum crystals, unspecified throughout; fragments; strong effervescence, by hcl, 1n; clear smooth boundary. Lab sample # 16N09686; slightly moist when described; observed in pit, large or quarry

Byg2—39 to 56 centimeters (15.4 to 22.0 inches); olive brown (2.5Y 4/3), light olive brown (2.5Y 5/3), dry; stratified stratified fine sandy loam; 75 percent sand; 15 percent silt; 10 percent clay; weak medium subangular blocky structure; slightly hard, very friable, slightly sticky, slightly plastic; 0.2 medium roots and 0.3 fine roots and 0.1 coarse roots; 2.0 fine tubular pores; 2 percent medium irregular noncoherent cemented yellowish brown (10YR 5/6), moist, iron-manganese masses throughout and 5 percent medium irregular noncoherent cemented dark grayish brown (10YR 4/2), moist, iron depletions throughout; 5 percent medium irregular noncoherent cemented white (10YR 9/1), moist, gypsum crystals, unspecified throughout; fragments; strong effervescence, by hcl, 1n; clear smooth boundary. Lab sample # 16N09687; moist when described; observed in pit, large or quarry

Cyg1—56 to 93 centimeters (22.0 to 36.6 inches); brown (10YR 5/3), pale brown (10YR 6/3), dry; stratified stratified silty clay loam; 15 percent sand; 50 percent silt; 35 percent clay; structureless massive; very sticky, very plastic; 0.1 medium roots and 0.2 fine roots and 0.1 coarse roots; 1.0 very fine interstitial and 1.0 fine tubular pores; 1 percent medium irregular noncoherent cemented black (10YR 2/1), moist, manganese masses throughout and 2 percent medium irregular noncoherent cemented yellowish red (5YR 5/8), moist, iron-manganese masses throughout; 5 percent medium irregular noncoherent cemented white (10YR 9/1), moist, gypsum crystals, unspecified throughout; fragments; strong effervescence, by hcl, 1n; clear smooth boundary. Lab sample # 16N09688; wet, non-satiated when described; observed in pit, large or quarry

Cyg2—93 to 150 centimeters (36.6 to 59.1 inches); brown (10YR 5/3), pale brown (10YR 6/3), dry; stratified stratified extremely gravelly coarse sandy loam; 85 percent sand; 8 percent silt; 7 percent clay; structureless single grain; slightly sticky, slightly plastic; 0.1 medium roots and 0.1 coarse roots; 3 percent medium irregular noncoherent cemented yellowish red (5YR 5/8), moist, iron-manganese masses throughout; 10 percent medium irregular noncoherent cemented white (10YR 9/1), moist, gypsum crystals, unspecified throughout; 20 percent by volume nonflat rounded indurated 75-165-250 millimeter sandstone, unspecified fragments observed by visual inspection method and 50 percent by volume nonflat rounded indurated 2-40-75 millimeter sandstone, unspecified fragments observed by visual inspection method; slight effervescence, by hcl, 1n. Lab sample # 16N09689; wet, non-satiated when described; observed in pit, large or quarry