IDENTIFIERS

Current Taxon Name (Soil Name): UNNAMED

OSD

Series Extent

User Site ID: S1996CA005002

User Pedon ID: 96CA005002

Lab Information:

Certified Lab Pedon Description - no

Lab Source ID - SSL

Lab Pedon # - 97P0066

Print Date: 4/27/2024

LOCATION

Township: 5N

Range: 10E

Section: 16

PLSS Details: About 1 1.4 miles SE of Buena Vista on Buena Vista Road; about 360 feet north along the N/S road between Sections 16 and 17 from the intersection (near Wardlaw's pit) of the northward loop on the southern E/W dirt road, thence 90 feet east; about 100

Location Description: (NE 1/4 Grid A8).

State: California

County: CA005—Amador

Non-MLRA Soil Survey Area: CA628—Amador Area, California

PEDON

Describers Name: Terry D. Cook and William Westerling.

Current Taxonomic Class: Clayey, kaolinitic, acid, thermic, shallow Dystric Xerorthents

Pedon Purpose: full pedon description

Pedon Record Orgin: Converted from PDP 3.x

Pedon #: 2

Correlated Information:

Soil Name - UNNAMED

PSC - 0 to 23 cm.

Classificaton Date - 1/17/2024

Classifier - Cathy Scott

Soil Taxonomic Edition - thirteenth edition

Moisture Class - xeric

Moisture Subclass - typic

Sampled As Information:

Soil Name - UNNAMED

Taxonomic Class - Coarse-loamy, mixed, shallow Dystric Xerorthents

PSC - 0 to 23 cm.

Classificaton Date - 5/2/1996

Dynamic Soil Properties:

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Landscape: hills

Landform: terrace

Slope Position: on a slope

Slope Shape Across: convex

Slope Shape Down: convex

Runoff: medium

Drainage Class: well

Surface Fragments: 35.00 percent

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 5/2/1996 (actual site observation date)

Air Photo ID: 10-2-5

Surface Cover Properties:

Pedoderm Loose Cover Indicator - no

Drained? - no

Bedded Soil? - no

Forest Plantation? - no

Pedon Restrictions
Kind	Hardness	Restriction Depth L-H	Restriction Thickness L-RV-H
		cm
bedrock, paralithic plinthite	moderately coherent strongly coherent	23 - 180 140 - 180	- 157 - - 40 -

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
ochric epipedon paralithic contact paralithic materials plinthite	0—18 23— 23—180 140—180	—18— —- —157— —40—

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
13	—	—	130	—	225	500	—	—	16	—	—	—	—	—	—	—	—	—	—

A—0 to 10 centimeters (0.0 to 3.9 inches); dark reddish brown (5YR 3/2), pinkish gray (5YR 6/2) and light reddish brown (5YR 6/3), dry; gravelly fine sandy loam; 73 percent sand; 12 percent silt; 16 percent clay; moderate medium and coarse subangular blocky structure; slightly hard, very friable, moderately sticky, moderately plastic; 0.5 very fine and fine roots; 3.0 very fine tubular and 0.5 fine and medium tubular pores; 8 percent by volume subrounded 2-39-75 millimeter quartzite fragments and 8 percent by volume rounded 2-39-75 millimeter sandstone, unspecified fragments; very strongly acid, pH 4.5, hellige-truog; abrupt wavy boundary. Lab sample # 97P00399. Petroplinthitic gravel 2 mm to 60 mm is size also apparent.

Bw—10 to 23 centimeters (3.9 to 9.1 inches); dark reddish brown (5YR 3/2), pink (5YR 7/3) and dark reddish brown (5YR 3/3), dry; gravelly clay; 42 percent sand; 7 percent silt; 50 percent clay; moderate fine and medium subangular blocky structure; slightly hard, very friable, moderately sticky, moderately plastic; 0.5 very fine and fine roots and 0.5 medium roots; 3.0 very fine tubular and 0.5 fine and medium tubular pores; 8 percent by volume rounded 2-39-75 millimeter sandstone, unspecified fragments and 8 percent by volume subrounded 2-39-75 millimeter quartzite fragments; extremely acid, pH 4.2, hellige-truog; clear wavy boundary. Lab sample # 97P00400. Petroplinthitic gravel 2 mm to 60 mm in size also apparent.

2Cr1—23 to 50 centimeters (9.1 to 19.7 inches); 60 percent light gray (10YR 7/1) and yellowish brown (10YR 5/6) and light reddish brown (5YR 6/4) and reddish brown (5YR 5/4) and red (2.5YR 4/6) and red (2.5YR 5/6), white (N 8/0), dry; bedrock; 23 percent sand; 3 percent silt; 74 percent clay; massive; very hard; 0.5 very fine roots; 8 percent by volume rounded 2-39-75 millimeter sandstone, unspecified fragments and 8 percent by volume subrounded 2-39-75 millimeter quartzite fragments; extremely acid, pH 4.2, hellige-truog; clear wavy boundary. Lab sample # 97P00401. Consolidated Ione beds, petroplinthitic gravel 2mm to 60 mm in size also apparent.

2Cr2—50 to 140 centimeters (19.7 to 55.1 inches); 60 percent gray (N 6/0) and yellowish brown (10YR 5/6) and brownish yellow (10YR 6/8) and red (2.5YR 4/6) and dark red (2.5YR 3/6), white (N 8/0), dry; bedrock; 43 percent sand; 3 percent silt; 54 percent clay; massive; very hard; 3 percent by volume rounded 2-39-75 millimeter sandstone, unspecified fragments and 30 percent by volume subrounded 2-39-75 millimeter quartzite fragments; extremely acid, pH 4.2, hellige-truog; clear wavy boundary. Lab sample # 97P00402. Consolidated Ione beds; a thin discontinuous stone line occurs at top of horizon; the 2Cr2 horizon is discontinuous; some features of rock structure; petroplinthitic gravel 2 mm to 60 mm in size also apparent.

3Crv—140 to 180 centimeters (55.1 to 70.9 inches); 70 percent brownish yellow (10YR 6/8) and 30 percent dark red (10R 3/6), brownish yellow (10YR 6/8), dry; bedrock; 38 percent sand; 10 percent silt; 52 percent clay; extremely hard; fragments; extremely acid, pH 3.8, hellige-truog. Lab sample # 97P00403. Weakly consolidated clayey sediments with plinthitic-like masses with some features of rock structure; no observable gravel.