IDENTIFIERS

Current Taxon Name (Soil Name): Loafercreek

OSD

Series Extent

User Site ID: S2009CA630CKS001

User Pedon ID: S09CA009002

Vegetation Plot ID: S2009CA630CKS001

Lab Information:

Certified Lab Pedon Description - yes

Lab Source ID - SSL

Lab Pedon # - 09N0866

NCSS Pedon Lab Data NASIS Record ID - 24485

Print Date: 4/29/2024

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: 37.9283333

Std. Longitude: -120.5749969

Datum: WGS84

Township: 01N

Range: 13E

Section: 20

PLSS Details: 525 meters SE from NW corner of section

Location Description: About 3 miles southwest of New Melones Dam.

State: California

County: CA009—Calaveras

MLRA: 18—Sierra Nevada Foothills

Regional Office: SW—Southwest

Non-MLRA Soil Survey Area: CA630—Central Sierra Foothills Area, California, Parts of Calaveras and Tuolumne Counties

7.5 Minute USGS Quad: 37120-H5—New Melones Dam, California

PEDON

Describers Name: Chris Savastio

Current Taxonomic Class: Fine-loamy, mixed, superactive, thermic Ultic Haploxeralfs

Current Taxon Kind: series

Pedon Type: classifies to current taxon name, full description

Pedon Purpose: laboratory sampling site

Pedon Record Orgin: NASIS

Correlated Information:

Soil Name - Loafercreek

PSC - 9 to 59 cm.

Classificaton Date - 12/24/2015

Classifier - Andrew Paolucci

Soil Taxonomic Edition - twelfth edition

Moisture Class - xeric

Moisture Subclass - typic

Sampled As Information:

Soil Name - Loafercreek active

Classificaton Date - 3/23/2009

Dynamic Soil Properties:

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Parent Material: colluvium over Gopher Ridge Formation residuum weathered from greenstone

Landscape: Sierra Nevada foothills

Landform: hillslope

Geomorphic Component Hills: side slope

Hill Slope Profile: backslope

Slope Complexity: simple

Slope Shape Across: linear

Slope Shape Down: linear

Drainage Class: well

Flooding: none flooding

Ponding: none ponding

Bedrock: indurated greenstone at 110cm with 10 to <45

Geology: Gopher Ridge Metavolcanic formation.

Surface Fragments:

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 3/23/2009 (actual site observation date)

Plant Association Name: Blue Oak Woodland

Surface Cover Properties:

Site Obs. Cover Kind 1 - tree cover

Site Obs. Cover Kind 2 - rangeland, grassland

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
ARCTO3 BRHOH CECU DICAC5 ERODI PISA2 QUDO	Arctostaphylos Bromus hordeaceus ssp. hordeaceus Ceanothus cuneatus Dichelostemma capitatum ssp. capitatum Erodium Pinus sabiniana Quercus douglasii	manzanita soft brome buckbrush bluedicks stork's bill California foothill pine blue oak	— — — — — — —	— — — — — — —	— — — — — — —

Pedon Restrictions
Kind	Hardness	Restriction Depth L-H	Restriction Thickness L-RV-H
		cm
bedrock, paralithic bedrock, lithic	moderately coherent indurated	97 - 110 110 - 201	— —

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
ochric epipedon argillic horizon paralithic materials lithic contact	0—9 9—97 97—110 110—	—- —- —- —-

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
22	—	—	1014	—	220	—	—	—	—	—	—	—	—	—	—	—	—	—	—

A—0 to 9 centimeters (0.0 to 3.5 inches); dark brown (7.5YR 3/4), dark brown (7.5YR 3/3), moist; silt loam; 35 percent sand; 51 percent silt; 14 percent clay; weak fine granular structure; slightly hard, friable, slightly sticky, slightly plastic; 0.8 very fine roots throughout and 0.8 fine roots throughout; 0.8 very fine irregular and 0.8 fine irregular pores; 2 percent by volume nonflat very strongly coherent cemented 2-?-76 millimeter greenstone fragments; slightly acid, pH 6.5, hellige-truog; abrupt wavy boundary.

Bt1—9 to 27 centimeters (3.5 to 10.6 inches); strong brown (7.5YR 4/6), reddish brown (5YR 4/3), moist; silt loam; 34 percent sand; 47 percent silt; 19 percent clay; moderate medium angular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; 3.0 very fine roots throughout and 0.8 medium roots throughout and 3.0 fine roots throughout and 0.8 coarse roots throughout; 3.0 very fine interstitial and 0.8 medium tubular and 3.0 fine interstitial and 0.8 fine tubular pores; 1 percent distinct clay films on surfaces along pores and 5 percent distinct clay films on all faces of peds and 5 percent distinct dark red (7.5R 3/6), dry, silt coats on surfaces along pores; 6 percent by volume nonflat very strongly coherent cemented 2-?-76 millimeter greenstone fragments; slightly acid, pH 6.3, hellige-truog; clear smooth boundary.

Bt2—27 to 45 centimeters (10.6 to 17.7 inches); strong brown (7.5YR 4/6), yellowish red (5YR 4/6), moist; very cobbly loam; 32 percent sand; 46 percent silt; 21 percent clay; moderate medium subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; 0.8 very fine roots throughout and 3.0 medium roots throughout and 0.8 fine roots throughout and 0.8 coarse roots throughout; 3.0 very fine irregular and 0.8 medium tubular and 3.0 fine irregular and 0.8 fine tubular pores; 1 percent distinct clay films on surfaces along pores and 3 percent distinct dark red (7.5R 3/6), dry, silt coats on surfaces along pores and 30 percent distinct clay films on all faces of peds; 5 percent by volume flat very strongly coherent cemented 2-?-150 millimeter greenstone fragments and 5 percent by volume nonflat weakly coherent cemented 2-?-76 millimeter greenstone fragments and 5 percent by volume nonflat weakly coherent cemented 76-?-250 millimeter greenstone fragments and 15 percent by volume nonflat very strongly coherent cemented 2-?-76 millimeter greenstone fragments and 15 percent by volume nonflat very strongly coherent cemented 76-?-250 millimeter greenstone fragments; slightly acid, pH 6.4, hellige-truog; clear wavy boundary.

Bt3—45 to 74 centimeters (17.7 to 29.1 inches); strong brown (7.5YR 4/6), yellowish red (5YR 4/6), moist; very paragravelly clay loam; 32 percent sand; 45 percent silt; 23 percent clay; strong medium subangular blocky structure; slightly hard, friable, moderately sticky, moderately plastic; 0.8 very fine roots throughout and 3.0 medium roots throughout and 0.8 fine roots throughout and 3.0 coarse roots throughout; 0.8 very fine tubular and 0.8 very fine irregular and 0.8 fine tubular and 0.8 fine irregular pores; 2 percent prominent reddish brown (5YR 4/4), dry, clay films on all faces of peds and 50 percent prominent reddish brown (5YR 4/4), dry, clay films on surfaces along pores; 6 percent by volume nonflat very strongly coherent cemented 2-?-76 millimeter greenstone fragments and 32 percent by volume nonflat weakly coherent cemented 2-?-76 millimeter greenstone fragments; slightly acid, pH 6.5, hellige-truog; clear wavy boundary.

BCt—74 to 97 centimeters (29.1 to 38.2 inches); brown (7.5YR 5/4), brown (7.5YR 5/4), moist; extremely paragravelly loam; 33 percent sand; 41 percent silt; 26 percent clay; slightly hard, friable, moderately sticky, moderately plastic; 3.0 very fine roots throughout and 3.0 medium roots throughout and 3.0 fine roots throughout and 0.8 coarse roots throughout; 30 percent distinct clay films on all faces of peds; 5 percent by volume flat very strongly coherent cemented 2-?-150 millimeter greenstone fragments and 10 percent by volume nonflat very strongly coherent cemented 2-?-76 millimeter greenstone fragments and 50 percent by volume nonflat weakly coherent cemented 2-?-76 millimeter greenstone fragments; slightly acid, pH 6.3, hellige-truog; abrupt irregular boundary.

Cr—97 to 110 centimeters (38.2 to 43.3 inches); bedrock; fragments.

R—110 to 200 centimeters (43.3 to 78.7 inches); bedrock; fragments.