IDENTIFIERS
Current Taxon Name (Soil Name):
Tallac
OSD
Series Extent
User Site ID:
99CA693-013
User Pedon ID:
S99CA017009
Lab Information:
Certified Lab Pedon Description -
no
Lab Source ID -
NSSL
Lab Pedon # -
00P0195
NCSS Pedon Lab Data NASIS Record ID -
11703
Print Date:
2/1/2025
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:
38.9362667
Std. Longitude:
-120.0453194
Datum:
WGS84
Map Unit:
7524—Tallac gravelly coarse sandy loam, moderately well drained, 0 to 5 percent slopes
Non-MLRA Soil Survey Area:
CA693—Tahoe Basin Area, California and Nevada
PEDON
Describers Name:
LA, FFF
Current Taxonomic Class:
Loamy-skeletal, mixed, frigid Fragic Dystroxerepts
Current Taxon Kind:
series
Pedon Type:
taxadjunct to the series
Pedon Purpose:
full pedon description
Pedon Record Orgin:
NASIS-pedon copied from PDP 3.x
Pedon #:
13
Correlated Information:
Soil Name -
Tallac
PSC -
25 to 100 cm.
Classificaton Date -
10/7/2005
Soil Taxonomic Edition -
ninth edition
Moisture Class -
xeric
Moisture Subclass -
typic
Sampled As Information:
Soil Name -
Tallac
Classificaton Date -
10/7/1999
Dynamic Soil Properties:
Pedoderm Loose Cover Indicator -
no
Hydric:
no
SITE
Parent Material:
alluvium derived from granodiorite
Bedrock:
granodiorite
Surface Fragments:
Benchmark Soil?:
no
VEGETATION
SITE OBSERVATION
Observation Date:
10/7/1999 (actual site observation date)
Air Photo ID:
8
Surface Cover Properties:
Site Obs. Cover Kind 1 -
tree cover
Site Obs. Cover Kind 2 -
conifers
Pedoderm Loose Cover Indicator -
no
Drained? -
no
Bedded Soil? -
no
Forest Plantation? -
no
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
0.5
—
—
1906.5
—
10
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Oi—0 to 3 centimeters (0.0 to 1.2 inches); slightly decomposed plant material; fragments.
A1—3 to 5 centimeters (1.2 to 2.0 inches); brown (10YR 4/3), very dark brown (10YR 2/2), moist; gravelly loamy sand; 85 percent sand; 7 percent clay; weak very fine granular structure; soft, very friable, nonsticky, nonplastic; 5.0 very fine roots; 18 percent by volume 2-39-75 millimeter unspecified fragments; neutral, pH 6.9, hellige-truog. Lab sample # 00P1471. Gvl. 2-5 mm: 7; Water Repel: Ext. High; NaF: <9; Mst: DV.
A2—5 to 13 centimeters (2.0 to 5.1 inches); brown (10YR 4/3), very dark brown (10YR 2/2), moist; gravelly loamy sand; 80 percent sand; 8 percent clay; weak very fine granular structure; soft, very friable, nonsticky, nonplastic; 20.0 very fine roots and 0.1 medium roots and 1.0 fine roots; 15 percent by volume 2-39-75 millimeter unspecified fragments; neutral, pH 6.8, hellige-truog. Lab sample # 00P1472. Gvl. 2-5 mm: 6; Water Repel: 2 sec.; NaF: 10.5; Mst.: DM.
A3—13 to 23 centimeters (5.1 to 9.1 inches); brown (10YR 4/3), very dark grayish brown (10YR 3/2), moist; cobbly loamy sand; 80 percent sand; 8 percent clay; weak very fine granular structure; soft, very friable, nonsticky, nonplastic; 15.0 very fine roots and 2.0 medium roots and 1.0 fine roots; 15 percent by volume 75-162-250 millimeter unspecified fragments and 15 percent by volume 2-39-75 millimeter unspecified fragments; neutral, pH 6.6, hellige-truog. Lab sample # 00P1473. water repel: 1 sec.; NaF: 10>8; Mst: DM.
AB—23 to 43 centimeters (9.1 to 16.9 inches); brown (10YR 4/3), very dark brown (10YR 2/2), moist; very cobbly loamy sand; 80 percent sand; 8 percent clay; weak very fine granular structure; soft, very friable, nonsticky, nonplastic; 10.0 very fine roots and 3.0 medium roots and 1.0 fine roots; 15 percent by volume 75-162-250 millimeter unspecified fragments and 20 percent by volume 2-39-75 millimeter unspecified fragments; slightly acid, pH 6.5, hellige-truog. Lab sample # 00P1474. Water Repel: slight; NaF: 10.7; Mst.: DM.
Bw—43 to 66 centimeters (16.9 to 26.0 inches); yellowish brown (10YR 5/4), dark yellowish brown (10YR 3/4), moist; very cobbly loamy sand; 80 percent sand; 8 percent clay; weak very fine granular, and single grain; soft, very friable, nonsticky, nonplastic; 1.0 very fine roots and 0.2 fine roots; 2 percent by volume 250-425-600 millimeter unspecified fragments and 22 percent by volume 2-39-75 millimeter unspecified fragments and 25 percent by volume 75-162-250 millimeter unspecified fragments; slightly acid, pH 6.4, hellige-truog. Lab sample # 00P1475. Water Repel: slight; NaF: 10.7; Mst: DM.
Cx1—66 to 122 centimeters (26.0 to 48.0 inches); pale brown (10YR 6/3), brown (10YR 4/3), moist; extremely cobbly sand; 90 percent sand; 2 percent clay; single grain, and weak very fine granular; loose, loose, nonsticky, nonplastic; 1.0 very fine roots and 0.2 fine roots; 1 percent by volume 250-425-600 millimeter unspecified fragments and 25 percent by volume 75-162-250 millimeter unspecified fragments and 34 percent by volume 2-39-75 millimeter unspecified fragments; slightly acid, pH 6.5, hellige-truog. Lab sample # 00P1476. Water Repel: slight; NaF: 10.7; Mst: DM; some cementation in both bottom horizons.
Cx2—122 to 157 centimeters (48.0 to 61.8 inches); very pale brown (10YR 7/3), yellowish brown (10YR 5/4), moist; extremely cobbly sand; 90 percent sand; 2 percent clay; single grain; loose, loose, nonsticky, nonplastic; 0.1 very fine roots; 2 percent by volume 250-425-600 millimeter unspecified fragments and 30 percent by volume 75-162-250 millimeter unspecified fragments and 32 percent by volume 2-39-75 millimeter unspecified fragments; slightly acid, pH 6.5, hellige-truog. Lab sample # 00P1477. Water Repel: slight; NaF: 10.5; Mst: DM; prominent color of grains; some cementation in both bottom horizons.