IDENTIFIERS

Current Taxon Name (Soil Name): Firebrick

OSD

Series Extent

User Site ID: S1996CA005008

User Pedon ID: 96CA005008

Lab Information:

Certified Lab Pedon Description - no

Lab Source ID - SSL

Lab Pedon # - 97P0072

Print Date: 3/21/2025

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: 38.2870695

Std. Longitude: -120.8956382

Datum: WGS84

Township: 5N

Range: 10E

Section: 17

PLSS Details: About 1 1/4 miles SE of Buena Vista on Buena Vista Road; on the N edge of a narrow dirt road 120 ft NE of the main northern E/W dirt road, 1020 ft W from the Y intersection near the center of the NE 1/4, SE 1/4, or 970 ft E of the N/S rd along W bdy

Location Description: (NE 1/4 Grid A4).

State: California

County: CA005—Amador

MLRA: 18—Sierra Nevada Foothills

Regional Office: SW—Southwest

MLRA Soil Survey Area: SW-SON—Sonora, California

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

7.5 Minute USGS Quad: 38120-C8—Ione, California

PEDON

Describers Name: Terry D. Cook and William Westering.

Current Taxonomic Class: Loamy, mixed, semiactive, thermic, shallow Typic Haploxerults

Current Taxon Kind: series

Pedon Type: classifies to current taxon name, full description

Pedon Purpose: full pedon description

Pedon Record Orgin: Converted from PDP 3.x

Pedon #: 8

Correlated Information:

Soil Name - Firebrick

PSC - 16 to 33 cm.

Classificaton Date - 1/25/2024

Classifier - Cathy Scott

Soil Taxonomic Edition - thirteenth edition

Moisture Class - xeric

Moisture Subclass - typic

Sampled As Information:

Soil Name - UNNAMED

Taxonomic Class - Fine-loamy, mixed, shallow Typic Haploxerults

PSC - 16 to 33 cm.

Classificaton Date - 5/4/1996

Dynamic Soil Properties:

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Parent Material: alluvium and/or sandstone

Landscape: hills

Landform: terrace

Slope Shape Across: linear

Slope Shape Down: linear

Runoff: medium

Drainage Class: well

Bedrock: moderately coherent sandstone, unspecified at 33cm

Surface Fragments: 1.00 percent

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

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

Air Photo ID: 10-2-5

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
petroferric bedrock, paralithic	— moderately coherent	33 - 53 33 - 185	- 20 - - 152 -

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
ochric epipedon argillic horizon petroferric contact paralithic contact paralithic materials	0—16 16—33 33— 33— 33—185	—16— —17— —- —- —152—

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
2	—	—	107	—	0	500	—	—	16	—	—	—	—	—	—	—	—	—	—

A—0 to 4 centimeters (0.0 to 1.6 inches); reddish brown (5YR 5/3), dark reddish brown (5YR 3/3), moist; fine sandy loam; 72 percent sand; 22 percent silt; 5 percent clay; weak thick platy parts to weak medium and coarse subangular blocky structure; slightly hard, very friable, nonsticky, nonplastic; 0.1 very fine and fine roots and 0.1 medium and coarse roots; 3.0 very fine and fine tubular and 21.0 very fine interstitial pores; 10 percent by volume subrounded 2-39-75 millimeter unspecified fragments; strongly acid, pH 5.2, hellige-truog; clear wavy boundary. Lab sample # 97P00434. 10 percent subrounded and rounded quartzitic and petrplinthitic gravel 2 mm to 3 inches in size.

AB—4 to 16 centimeters (1.6 to 6.3 inches); light reddish brown (5YR 6/4), reddish brown (5YR 4/4), moist; fine sandy loam; 73 percent sand; 21 percent silt; 6 percent clay; weak medium and coarse subangular blocky structure; slightly hard, very friable, nonsticky, nonplastic; 0.1 very fine and fine roots and 0.1 medium and coarse roots; 0.5 very fine and fine tubular and 3.0 very fine interstitial pores; 10 percent by volume subrounded 2-39-75 millimeter quartzite fragments; strongly acid, pH 5.1, hellige-truog; clear wavy boundary. Lab sample # 97P00435. 10 percent petroplinthitic gravel 2 cm to 3 inches in size.

Bt1—16 to 27 centimeters (6.3 to 10.6 inches); light reddish brown (5YR 6/4), yellowish red (5YR 4/6), moist; gravelly fine sandy loam; 67 percent sand; 23 percent silt; 10 percent clay; moderate medium and coarse subangular blocky structure; friable, slightly sticky, slightly plastic; 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; 30 percent clay films on sand and gravel and 30 percent clay bridges on sand and gravel; 5 percent by volume 75-162-250 millimeter unspecified fragments and 10 percent by volume subrounded 2-39-75 millimeter unspecified fragments; very strongly acid, pH 4.8, hellige-truog; clear wavy boundary. Lab sample # 97P00436. 10 percent subrounded and rounded petroplinthitic and few quartzitic gravel 2 mm to 3 inches in size, 5 percent fragments up to 10 inches in size.

Bt2—27 to 33 centimeters (10.6 to 13.0 inches); reddish yellow (5YR 6/6), yellowish red (5YR 5/6), moist; gravelly fine sandy loam; 60 percent sand; 23 percent silt; 17 percent clay; weak fine and medium subangular blocky structure; friable, slightly sticky, moderately plastic; 0.1 very fine and fine roots and 0.1 medium and coarse roots; 0.5 very fine and fine tubular pores; 10 percent clay films on faces of peds and 30 percent clay films in root channels and/or pores; 5 percent by volume 75-162-250 millimeter unspecified fragments and 10 percent by volume subrounded 2-39-75 millimeter unspecified fragments; very strongly acid, pH 4.5, hellige-truog; abrupt irregular boundary. Lab sample # 97P00437. 10 percent subrounded and rounded petroplinthitic and few quartzitic gravel 2 mm to 3 inches in size.

2Bvm/2Cr—33 to 53 centimeters (13.0 to 20.9 inches);, weak red (10R 4/3), moist; bedrock; 57 percent sand; 29 percent silt; 14 percent clay; massive; extremely hard; 0.5 roots; fragments; abrupt wavy boundary. Lab sample # 97P00438. Indurated or cemented (?), extremely hard strata or layers that may be petroplinthite or sandstone; roots follow fracture planes.

3Bv1/3Cr—53 to 150 centimeters (20.9 to 59.1 inches);, 30 percent pinkish gray (5YR 6/2) and 30 percent light gray (5YR 7/1) and 8 percent strong brown (7.5YR 5/8) and 8 percent brownish yellow (10YR 6/8) and 7 percent yellowish brown (10YR 5/6) and 7 percent yellowish brown (10YR 5/8) and 3 percent red (2.5YR 4/6) and 3 percent dark red (2.5YR 3/6) and 2 percent red (10R 4/8) and 2 percent dusky red (10R 3/4), moist; bedrock; 48 percent sand; 33 percent silt; 19 percent clay; extremely hard; brittle; fragments; extremely acid, pH 3.9, hellige-truog; abrupt irregular boundary. Lab sample # 97P00439. Variegated mixed horizontal strata or reticulate lenticular lenses interlayered with extremely hard, brittle, plinthitic, sandstone, slate or cemented clays.

3Bv2/4Cr—150 to 185 centimeters (59.1 to 72.8 inches);, 25 percent reddish gray (5YR 5/2) and 20 percent light gray (10YR 7/1) and 11 percent strong brown (7.5YR 5/8) and 12 percent brownish yellow (10YR 6/8) and 11 percent yellowish brown (10YR 5/6) and 11 percent yellowish brown (10YR 5/8) and 3 percent red (2.5YR 4/6) and 3 percent dark red (2.5YR 3/6) and 2 percent red (10R 4/8) and 2 percent dusky red (10R 3/4), moist; bedrock; 42 percent sand; 38 percent silt; 20 percent clay; hard; brittle; fragments; extremely acid, pH 3.9, hellige-truog. Lab sample # 97P00440. Variegated multiple mixed horizontal strata or reticulate lenticular lenses interlayered with soft to hard, brittle, plinthitic, sandstone, slate or cemented clays.