IDENTIFIERS

Current Taxon Name (Soil Name): Ralphston family

OSD

Series Extent

User Site ID: S2012AZ005007

User Pedon ID: S2012AZ005007

Lab Information:

Certified Lab Pedon Description - no

Lab Source ID - KSSL

Lab Pedon # - 12N7972

NCSS Pedon Lab Data NASIS Record ID - 55393

Print Date: 11/22/2024

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: 35.5399704

Std. Longitude: -111.4670029

Datum: WGS84

Township: 25N

Range: 9E

Section: 19

Map Unit: 120—Tsosie family very gravelly coarse sand, 1 to 5 percent slopes

State: Arizona

County: AZ005—Coconino

MLRA: 35—Colorado Plateau

Non-MLRA Soil Survey Area: AZ631—Coconino County Area, Arizona, Central Part

PEDON

Describers Name: J. M. Harrigan

Current Taxonomic Class: Fine-loamy, mixed, superactive, mesic Torriorthentic Haplustolls

Current Taxon Kind: family

Pedon Type: representative pedon for component

Pedon Purpose: full pedon description

Pedon Record Orgin: NASIS

Sampled As Information:

Soil Name - Ralphston

Taxonomic Class - Fine-loamy, mixed, superactive, mesic Torriorthentic Haplustolls

PSC - 25 to 100 cm.

Classificaton Date - 5/17/2012

Soil Taxonomic Edition - eleventh edition

Moisture Class - aridic (torric)

Moisture SUBClass - ustic

Dynamic Soil Properties:

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Parent Material: fine-loamy slope alluvium derived from volcanic and sedimentary rock

Landform: valley floor, flood plain

Slope Complexity: simple

Slope Shape Across: concave

Slope Shape Down: linear

Runoff: high

Drainage Class: well

Flooding: very rare flooding begining in aug

Ponding: none ponding

Geology: Quaternary Alluvium formation.

Surface Fragments:

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 5/17/2012 (actual site observation date)

Surface Cover Properties:

Pedoderm Loose Cover Indicator - no

Drained? - no

Bedded Soil? - no

Forest Plantation? - no

Pedon Horizon Lab Results - 1
Horizon	Top Depth	Bottom Depth	Sample ID	Data Collector	Total Clay	CaCO3 Clay	Total Silt	Fine Silt	Co. Silt	Total Sand	Total Sand Method	VC Sand	Co. Sand	Med. Sand	Fine Sand	VF Sand	VF Sand Method	Texture Class - Field Lab	Rubbed Fiber	Unrubbed Fiber	pH H2O
	cm	cm			%	%	%	%	%	%		%	%	%	%	%			%	%
A1 A1 A1 A2 A2 A2 Bw Bw Bw Bk1 Bk1 Bk1 Bk2 Bk2 Bk2	0 0 0 2 2 2 18 18 18 30 30 30 102 102 102	2 2 2 18 18 18 30 30 30 102 102 102 152 152 152	— — — — — — — — — — — — — — —	— — — — — — — — — — — — — — —	— — — — — — — — — — — — — — —	— — — — — — — — — — — — — — —	— — — — — — — — — — — — — — —	— — — — — — — — — — — — — — —	— — — — — — — — — — — — — — —	— — — — — — — — — — — — — — —	— — — — — — — — — — — — — — —	— — — — — — — — — — — — — — —	— — — — — — — — — — — — — — —	— — — — — — — — — — — — — — —	— — — — — — — — — — — — — — —	— — — — — — — — — — — — — — —	— — — — — — — — — — — — — — —	— — — — — — — — — — — — — — —	— — — — — — — — — — — — — — —	— — — — — — — — — — — — — — —	— — — — — — — — — — — — — — —

Pedon Horizon Lab Results - 2
Horizon	Top Depth	Bottom Depth	Sample ID	pH CaCl2	pH NaF	pH Ox	Delta pH	LL	PL	PI	Atter. Samp. Cond.	COLE	Pot. Acidity	Ca + Mg - Meh 2	K	Ca + Mg - Sat. Paste	KCl Extract. Acidity	Base Sat. - Meh 2	CEC-7	CEC-8.2
	cm	cm						%	%	%		cm/cm	meq/100g	cmol(+)/kg	cmol(+)/kg	mmol(+)/l	cmol(+)/kg	%	cmol(+)/kg	cmol(+)/kg
A1 A1 A1 A2 A2 A2 Bw Bw Bw Bk1 Bk1 Bk1 Bk2 Bk2 Bk2	0 0 0 2 2 2 18 18 18 30 30 30 102 102 102	2 2 2 18 18 18 30 30 30 102 102 102 152 152 152	— — — — — — — — — — — — — — —	— — — — — — — — — — — — — — —	— — — — — — — — — — — — — — —	— — — — — — — — — — — — — — —	— — — — — — — — — — — — — — —	— — — — — — — — — — — — — — —	— — — — — — — — — — — — — — —		— — — — — — — — — — — — — — —	— — — — — — — — — — — — — — —	— — — — — — — — — — — — — — —	— — — — — — — — — — — — — — —	— — — — — — — — — — — — — — —	— — — — — — — — — — — — — — —	— — — — — — — — — — — — — — —	— — — — — — — — — — — — — — —	— — — — — — — — — — — — — — —	— — — — — — — — — — — — — — —

Pedon Horizon Lab Results - 3
Horizon	Top Depth	Bottom Depth	Sample ID	ECEC	Phosphate P	NO3-N	EC	EC Method	EC 1:5 by volume	CaCO3 Equiv.	Equiv. Gypsum	Na	SAR	Gypsum Req.	Humic Color	Fulvic Color	Humic + Fulvic Color	Al	PI	Pyro. Hue	PyrO. Value	Pyro. Chroma
	cm	cm		cmol(+)/kg	mg/kg	mg/kg	dS/m		dS/m	%	%	mmol(+)/l	%	L-pcu/g	L-pcu/g	L-pcu/g	%
A1 A1 A1 A2 A2 A2 Bw Bw Bw Bk1 Bk1 Bk1 Bk2 Bk2 Bk2	0 0 0 2 2 2 18 18 18 30 30 30 102 102 102	2 2 2 18 18 18 30 30 30 102 102 102 152 152 152	— — — — — — — — — — — — — — —	— — — — — — — — — — — — — — —	— — — — — — — — — — — — — — —	— — — — — — — — — — — — — — —	— — — — — — — — — — — — — — —	— — — — — — — — — — — — — — —	— — — — — — — — — — — — — — —	1 — — 1 — — 3 — — 3 — — 3 — —	— — 0 — 0 — — — 0 — 0 — — — 0	— — — — — — — — — — — — — — —	— 1 — — — 1 — 1 — — — 1 — 1 —	— — — — — — — — — — — — — — —	— — — — — — — — — — — — — — —	— — — — — — — — — — — — — — —	— — — — — — — — — — — — — — —	— — — — — — — — — — — — — — —	— — — — — — — — — — — — — — —	— — — — — — — — — — — — — — —	— — — — — — — — — — — — — — —	— — — — — — — — — — — — — — —

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
mollic epipedon	0—30	—30—

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	152	—	1642	—	210	305	—	150	—	—	—	—	—	—	—	—	—	—	—

A1—0 to 2 centimeters (0.0 to 0.8 inches); black (7.5YR 2.5/1), black (7.5YR 2.5/1), moist; very gravelly coarse sand; 92 percent sand; 4 percent clay; structureless single grain; loose, loose, nonsticky, nonplastic; 5.0 interstitial pores; 40 percent by volume nonflat rounded indurated 2-39-75 millimeter cinders fragments; very slight effervescence, by hcl, 1n; slightly alkaline, pH 7.8, cresol red; abrupt smooth boundary.; observed in pit, small

A2—2 to 18 centimeters (0.8 to 7.1 inches); brown (7.5YR 5/3), dark brown (7.5YR 3/2), moist; gravelly loam; 50 percent sand; 24 percent clay; moderate medium subangular blocky structure; soft, very friable, moderately sticky, moderately plastic; 3.0 very fine roots throughout; 10.0 very fine dendritic tubular and 2.0 fine dendritic tubular pores; 20 percent by volume nonflat rounded indurated 2-39-75 millimeter cinders fragments; very slight effervescence, by hcl, 1n; moderately alkaline, pH 8.2, cresol red; clear smooth boundary. Lab sample # 12N02849; observed in pit, small

Bw—18 to 30 centimeters (7.1 to 11.8 inches); brown (7.5YR 5/3), dark brown (7.5YR 3/2), moist; clay loam; 40 percent sand; 29 percent clay; weak medium subangular blocky structure; soft, very friable, very sticky, very plastic; 3.0 very fine roots throughout; 5.0 very fine dendritic tubular pores; fragments; slight effervescence, by hcl, 1n; moderately alkaline, pH 8.2, cresol red; gradual smooth boundary.; observed in pit, small

Bk1—30 to 102 centimeters (11.8 to 40.2 inches); light brown (7.5YR 6/3), dark brown (7.5YR 3/3), moist; clay loam; 40 percent sand; 28 percent clay; structureless massive; soft, very friable, very sticky, very plastic; 1.0 very fine roots throughout; 4.0 very fine dendritic tubular pores; 1 percent fine carbonate nodules in matrix and 5 percent fine threadlike carbonate masses lining pores; fragments; slight effervescence, by hcl, 1n; moderately alkaline, pH 8.2, cresol red; gradual smooth boundary.; observed in pit, small

Bk2—102 to 152 centimeters (40.2 to 59.8 inches); light brown (7.5YR 6/3), brown (7.5YR 4/3), moist; clay loam; 40 percent sand; 28 percent clay; structureless massive; slightly hard, friable, very sticky, very plastic; 1.0 very fine dendritic tubular pores; 5 percent carbonate, finely disseminated throughout; fragments; slight effervescence, by hcl, 1n; moderately alkaline, pH 8.2, cresol red.; observed in auger, bucket