IDENTIFIERS

Current Taxon Name (Soil Name): Embarcadero

OSD

Series Extent

User Site ID: 05ca085641319

User Pedon ID: 05ca085641319

Lab Information:

Certified Lab Pedon Description - yes

Lab Pedon # - 07N0672

NCSS Pedon Lab Data NASIS Record ID - 19550

Print Date: 11/21/2024

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: 37.4116333

Std. Longitude: -121.9914389

Datum: WGS84

Location Description: Baylands Park, City of Sunnyvale, wildlife area on east side of park, about 150 feet north of gate.

Map Unit: 150—Urbanland-Embarcadero complex, 0 to 2 percent slopes, drained

State: California

County: CA085—Santa Clara

MLRA: 14—Central California Coastal Valleys

Non-MLRA Soil Survey Area: CA641—Santa Clara Area, California, Western Part

7.5 Minute USGS Quad: 37121-D8—Milpitas, California

PEDON

Describers Name: Valerie Bullard, William Reed and Guy Romito

Current Taxonomic Class: Fine, mixed, active, calcareous, thermic Fluvaquentic Endoaquolls

Current Taxon Kind: series

Pedon Type: OSD pedon

Pedon Purpose: full pedon description

Pedon Record Orgin: NASIS

Correlated Information:

Soil Name - Embarcadero

Classificaton Date - 7/27/2012

Soil Taxonomic Edition - tenth edition

Moisture Class - aquic

Moisture Subclass - aquic

Sampled As Information:

Soil Name - Embarcadero

Classificaton Date - 9/21/2005

Dynamic Soil Properties:

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Landform: basin floor

Slope Complexity: simple

Slope Shape Across: linear

Slope Shape Down: linear

Runoff: high

Drainage Class: very poorly

Flooding: none flooding

Ponding: rare ponding for very long periods

Surface Fragments:

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 9/21/2005 (actual site observation date)

Surface Cover Properties:

Site Obs. Cover Kind 1 - grass/herbaceous cover

Site Obs. Cover Kind 2 - other grass/herbaceous cover

Pedoderm Loose Cover Indicator - no

Drained? - no

Bedded Soil? - no

Forest Plantation? - no

Pedon Horizon Lab Results - 1
Horizon	Top Depth	Bottom Depth	Sample ID	Data Collector	Total Clay	CaCO3 Clay	Total Silt	Fine Silt	Co. Silt	Total Sand	Total Sand Method	VC Sand	Co. Sand	Med. Sand	Fine Sand	VF Sand	VF Sand Method	Texture Class - Field Lab	Rubbed Fiber	Unrubbed Fiber	pH H2O
	cm	cm			%	%	%	%	%	%		%	%	%	%	%			%	%
An An Bkn1 Bkn1 Bkn2 Bkn2 Bkn3 Bkn3 Bkn4 Bkn4 Bkn5 Bkn5 Bkn6 Bkn6 BkCg BkCg	0 0 19 19 40 40 66 66 95 95 120 120 155 155 164 164	19 19 40 40 66 66 95 95 120 120 155 155 164 164 250 250	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —

Pedon Horizon Lab Results - 2
Horizon	Top Depth	Bottom Depth	Sample ID	pH CaCl2	pH NaF	pH Ox	Delta pH	LL	PL	PI	Atter. Samp. Cond.	COLE	Pot. Acidity	Ca + Mg - Meh 2	K	Ca + Mg - Sat. Paste	KCl Extract. Acidity	Base Sat. - Meh 2	CEC-7	CEC-8.2
	cm	cm						%	%	%		cm/cm	meq/100g	cmol(+)/kg	cmol(+)/kg	mmol(+)/l	cmol(+)/kg	%	cmol(+)/kg	cmol(+)/kg
An An Bkn1 Bkn1 Bkn2 Bkn2 Bkn3 Bkn3 Bkn4 Bkn4 Bkn5 Bkn5 Bkn6 Bkn6 BkCg BkCg	0 0 19 19 40 40 66 66 95 95 120 120 155 155 164 164	19 19 40 40 66 66 95 95 120 120 155 155 164 164 250 250	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —		— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —

Pedon Horizon Lab Results - 3
Horizon	Top Depth	Bottom Depth	Sample ID	ECEC	Phosphate P	NO3-N	EC	EC Method	EC 1:5 by volume	CaCO3 Equiv.	Equiv. Gypsum	Na	SAR	Gypsum Req.	Humic Color	Fulvic Color	Humic + Fulvic Color	Al	PI	Pyro. Hue	PyrO. Value	Pyro. Chroma
	cm	cm		cmol(+)/kg	mg/kg	mg/kg	dS/m		dS/m	%	%	mmol(+)/l	%	L-pcu/g	L-pcu/g	L-pcu/g	%
An An Bkn1 Bkn1 Bkn2 Bkn2 Bkn3 Bkn3 Bkn4 Bkn4 Bkn5 Bkn5 Bkn6 Bkn6 BkCg BkCg	0 0 19 19 40 40 66 66 95 95 120 120 155 155 164 164	19 19 40 40 66 66 95 95 120 120 155 155 164 164 250 250	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— 1 — 5 — 4 — 3 — 13 — 32 — 15 — 8	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	23 — 40 — 73 — 68 — 106 — 63 — 56 — 46 —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — —

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	—	—	-2	—		—	—	—	—	—	—	—	—	—	—	—	—	—	—

An—0 to 19 centimeters (0.0 to 7.5 inches); very dark gray (10YR 3/1) broken face, dark gray (10YR 4/1) broken face, dry; clay loam; 23 percent sand; 39 percent silt; 38 percent clay; moderate coarse prismatic, and moderate coarse angular blocky structure; very hard, friable, moderately sticky, slightly plastic; 1.0 coarse roots; 0.5 very fine tubular pores; fragments; noneffervescent; strongly alkaline, pH 9.0, pH meter; clear smooth boundary.; dry when described; observed in pit, small

Bkn1—19 to 40 centimeters (7.5 to 15.7 inches); very dark grayish brown (2.5Y 3/2) broken face, grayish brown (2.5Y 5/2) broken face, dry; clay; 22 percent sand; 34 percent silt; 45 percent clay; moderate coarse angular blocky, and moderate coarse prismatic structure; very hard, friable, moderately sticky, moderately plastic; 1.0 coarse roots; 0.5 very fine tubular pores; 10 percent carbonate masses; fragments; noneffervescent; very strongly alkaline, pH 9.9, pH meter; abrupt wavy boundary.; slightly dry when described; observed in pit, small

Bkn2—40 to 66 centimeters (15.7 to 26.0 inches); 90 percent olive brown (2.5Y 4/3) broken face and 10 percent dark greenish gray (5GY 3/1) broken face silty clay; 14 percent sand; 43 percent silt; 43 percent clay; moderate coarse angular blocky, and moderate coarse prismatic structure; very hard, friable, moderately sticky, moderately plastic; 0.1 fine roots and 0.1 coarse roots; 0.5 very fine tubular pores; 2 percent carbonate masses; fragments; noneffervescent; very strongly alkaline, pH 10.0, pH meter; clear smooth boundary.; slightly moist when described; observed in pit, small

Bkn3—66 to 95 centimeters (26.0 to 37.4 inches); 60 percent olive gray (5Y 4/2) broken face and 40 percent olive brown (2.5Y 4/4) broken face silty clay; 8 percent sand; 43 percent silt; 49 percent clay; moderate coarse angular blocky, and moderate coarse prismatic structure; very hard, friable, moderately sticky, moderately plastic; fragments; noneffervescent; very strongly alkaline, pH 9.7, pH meter; clear smooth boundary.; slightly moist when described; observed in pit, small

Bkn4—95 to 120 centimeters (37.4 to 47.2 inches); light olive brown (2.5Y 5/3) broken face, light yellowish brown (2.5Y 6/3) broken face, dry; silty clay; 11 percent sand; 40 percent silt; 49 percent clay; massive; very hard, friable, moderately sticky, moderately plastic; 0.1 fine roots and 0.1 coarse roots; 0.5 very fine tubular pores; 30 percent carbonate masses; fragments; strong effervescence; very strongly alkaline, pH 9.6, pH meter; clear smooth boundary.; slightly moist when described; observed in pit, small

Bkn5—120 to 155 centimeters (47.2 to 61.0 inches); light olive brown (2.5Y 5/3) broken face, light yellowish brown (2.5Y 6/3) broken face, dry; clay loam; 21 percent sand; 40 percent silt; 39 percent clay; massive; very hard, friable, moderately sticky, moderately plastic; 1.0 very fine tubular pores; 30 percent carbonate masses; fragments; noneffervescent; very strongly alkaline, pH 9.4, pH meter; abrupt smooth boundary.; slightly moist when described; observed in pit, small

Bkn6—155 to 164 centimeters (61.0 to 64.6 inches); 70 percent light olive brown (2.5Y 5/3) broken face, 70 percent light yellowish brown (2.5Y 6/3) broken face, dry; silty clay; 8 percent sand; 41 percent silt; 51 percent clay; massive; very hard, firm, moderately sticky, very plastic; 1.0 very fine tubular pores; 30 percent light olive gray (5Y 6/2), dry, and olive gray (5Y 5/2), moist, iron depletions; 10 percent carbonate masses and 20 percent carbonate concretions; fragments; noneffervescent; very strongly alkaline, pH 9.3, pH meter; abrupt smooth boundary.; slightly moist when described; observed in pit, small

BkCg—164 to 250 centimeters (64.6 to 98.4 inches); 60 percent light olive brown (2.5Y 5/4) broken face, 60 percent light yellowish brown (2.5Y 6/4) broken face, dry; silty clay; 4 percent sand; 40 percent silt; 56 percent clay; massive; very hard, firm, moderately sticky, very plastic; 1.0 very fine tubular pores; 40 percent greenish gray (5GY 6/1), dry, and greenish gray (5GY 5/1), moist, iron depletions; 10 percent carbonate masses; fragments; strong effervescence; very strongly alkaline, pH 9.2, pH meter.; slightly moist when described; observed in auger, bucket