IDENTIFIERS

Current Taxon Name (Soil Name): UNNAMED

OSD

Series Extent

User Site ID: S1996CA005010

User Pedon ID: 96CA005010

Lab Information:

Certified Lab Pedon Description - no

Lab Source ID - SSL

Lab Pedon # - 97P0074

Print Date: 4/27/2024

LOCATION

Township: 5N

Range: 10E

Section: 17

PLSS Details: About 1 1/4 miles SE of Buena Vista on Buena Vista Road; 10 feet north of the northern E/W dirt road, 525 feet easterly from the intersection with N/S road along the western boundary; near the S 1/4 corner of the SW 1/4, NE 1/4, NW 1/4, NW 1/4, SE 1/4

Location Description: (SW 1/4 Grid A3).

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: Fine-loamy, mixed, semiactive, thermic Typic Haploxerults

Pedon Purpose: full pedon description

Pedon Record Orgin: Converted from PDP 3.x

Pedon #: 10

Correlated Information:

Soil Name - UNNAMED

PSC - 20 to 64 cm.

Classificaton Date - 1/29/2024

Classifier - Cathy Scott

Soil Taxonomic Edition - thirteenth edition

Moisture Class - xeric

Moisture Subclass - typic

Sampled As Information:

Soil Name - UNNAMED

Taxonomic Class - Fine, kaolinitic Abruptic Durixeralfs

PSC - 20 to 70 cm.

Classificaton Date - 5/4/1996

Dynamic Soil Properties:

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Landscape: hills

Landform: terrace

Slope Shape Across: convex

Slope Shape Down: convex

Runoff: medium

Drainage Class: well

Surface Fragments: 1.00 percent

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 5/4/1996 (actual site observation date)

Air Photo ID: 10-2-6

Surface Cover Properties:

Site Obs. Cover Kind 1 - other

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
duripan	indurated	100 - 170	- 70 -

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
ochric epipedon argillic horizon kandic horizon duripan	0—20 20—64 20—100 100—170	—20— —44— —80— —70—

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
6	—	—	113	—	135	500	—	—	16	—	—	—	—	—	—	—	—	—	—

A—0 to 7 centimeters (0.0 to 2.8 inches); brown (7.5YR 4/4), dark reddish brown (5YR 3/3), moist; gravelly sandy loam; 65 percent sand; 27 percent silt; 8 percent clay; weak fine and medium parts to weak fine and medium granular structure; slightly hard, very friable, nonsticky, nonplastic; 0.5 very fine and fine roots and 0.5 medium and coarse roots; 3.0 very fine and fine tubular and 0.5 medium tubular pores; 20 percent by volume 2-39-75 millimeter quartzite fragments; moderately acid, pH 5.7, hellige-truog; clear wavy boundary. Lab sample # 97P00447; dry when described;. Few rounded and subrounded petroplinthitic fragments.

ABt—7 to 20 centimeters (2.8 to 7.9 inches); reddish brown (5YR 4/4) gravelly sandy loam; 63 percent sand; 27 percent silt; 11 percent clay; moderate medium and coarse subangular blocky structure; friable, nonsticky, nonplastic; 0.5 very fine and fine roots and 0.5 medium and coarse roots; 21.0 very fine and fine tubular and 3.0 medium tubular pores; 10 percent clay films on sand and gravel and 10 percent clay bridges on sand and gravel; 15 percent by volume 2-39-75 millimeter quartzite fragments; strongly acid, pH 5.5, hellige-truog; clear wavy boundary. Lab sample # 97P00448; slightly moist when described;. Gravels are a mixture of sandstone, petroplinthite and shale fragments of the Ione Fm.; continuous - phpvsfiid 195016; continuous - phpvsfiid 195016

Bt1—20 to 38 centimeters (7.9 to 15.0 inches);, yellowish red (5YR 5/6), moist; gravelly sandy loam; 60 percent sand; 24 percent silt; 17 percent clay; weak medium and coarse subangular blocky structure; very friable, slightly sticky, moderately plastic; 0.5 very fine and fine roots and 0.5 medium and coarse roots; 21.0 very fine and fine tubular and 3.0 medium tubular pores; 10 percent clay films in root channels and/or pores and 75 percent clay films on sand and gravel and 75 percent clay bridges on sand and gravel; 20 percent by volume 2-39-75 millimeter quartzite fragments; strongly acid, pH 5.2, hellige-truog; abrupt wavy boundary. Lab sample # 97P00449; slightly moist when described;. continuous - phpvsfiid 195018; continuous - phpvsfiid 195020; continuous - phpvsfiid 195018; continuous - phpvsfiid 195020; Gravel also has a mixture of sandstone, petroplinthite and shale fragments of the Ione Fm.

Bt2—38 to 64 centimeters (15.0 to 25.2 inches); red (2.5YR 4/6), reddish yellow (7.5YR 6/6) and strong brown (7.5YR 5/6), moist; sandy clay; 51 percent sand; 13 percent silt; 36 percent clay; weak medium and coarse subangular blocky structure; friable, moderately sticky, moderately plastic; 0.5 very fine and fine roots and 0.5 medium and coarse roots; 21.0 very fine and fine tubular and 3.0 medium tubular pores; 75 percent clay films on faces of peds and in pores; 10 percent by volume 2-39-75 millimeter quartzite fragments; very strongly acid, pH 4.9, hellige-truog; clear irregular boundary. Lab sample # 97P00450; slightly moist when described;. Gravels also has a mixture of sandstone, petroplinthite, and shale fragments of the Ione Fm.; continuous - phpvsfiid 195021; continuous - phpvsfiid 195021

2Bv—64 to 100 centimeters (25.2 to 39.4 inches); red (2.5YR 4/6) and dark red (2.5YR 3/6) and red (10R 4/6), brownish yellow (10YR 6/6) and brownish yellow (10YR 6/8) and yellowish brown (10YR 5/6) and light brownish gray (10YR 6/2) and gray (10YR 6/1), moist; sandy clay loam; 62 percent sand; 15 percent silt; 22 percent clay; massive; 0.1 fine roots; fragments; very strongly acid, pH 4.8, hellige-truog; clear wavy boundary. Lab sample # 97P00451. Roots concentrated along fracture planes or root channels; horizon is discontinuous in places, in these places the red hues (2.5YR and 10R) rest on the duripan.

3Bqm1—100 to 130 centimeters (39.4 to 51.2 inches); light brown (7.5YR 6/4) and pink (7.5YR 7/4) cemented material; 76 percent sand; 14 percent silt; 11 percent clay; fragments; very strongly acid, pH 4.8, hellige-truog. Lab sample # 97P00452. Indurated duripan; cementation is noneffervescent.

3Bqm2—130 to 170 centimeters (51.2 to 66.9 inches); light yellowish brown (10YR 6/4) and very pale brown (10YR 7/3) and very pale brown (10YR 7/4) cemented material; 80 percent sand; 9 percent silt; 10 percent clay; fragments; very strongly acid, pH 4.8, hellige-truog. Lab sample # 97P00453. Indurated duripan; cementation is noneffervescent; rock fragments increase with depth and have a higher percentage of cobbles; below 170 cm it is not indurated but with weak to strong cementation.