*** Primary Characterization Data ***

Pedon ID: 91CA011002

( Colusa, California )

Print Date: Nov 11 2024 8:43PM

Sampled as on Apr 29, 1991:	Contra Costa T
Revised to correlated:	Contra Costa ; Clayey-skeletal, mixed, superactive, thermic Typic Palexeralfs

				United States Department of Agriculture
SSL	-	Project	CP91CA178   1992 TOUR	Natural Resources Conservation Service
	-	Site ID	S1991CA011002   Lat: 39° 17' 12.00" north  Long: 122° 18' 28.00" west  MLRA: 15	National Soil Survey Center
	-	Pedon No.	91P0759	Soil Survey Laboratory
	-	General Methods 1B1A, 2A1, 2B		Lincoln, Nebraska 68508-3866

---

Layer	Horizon	Orig Hzn	Depth (cm)	Field Label 1	Field Label 2	Field Label 3	Field Texture	Lab Texture
91P04344	Oe	OE	0-1
91P04345	A1	A1	1-6					L
91P04346	A2	A2	6-14					L
91P04347	Bt1	Bt1	14-34					C
91P04348	Bt2	Bt2	34-78					C
91P04349	Bt3	Bt3	78-110					C
91P04350	2C	2C	110-136					SIC
91P04351			0-0
91P04352			0-0
91P04353			0-0
91P04354			0-0

---

Pedon Calculations
Calculation Name	Result	Units of Measure
Clay, total, Weighted Average	40	% wt
Weighted Particles, 0.1-75mm, 75 mm Base	49	% wt
CEC Activity, CEC7/Clay, Weighted Average	0.61	(NA)
Clay, carbonate free, Weighted Average	40	% wt
Weighted averages based on control section: 13-64 cm

*** Primary Characterization Data ***

Pedon ID: 91CA011002

( Colusa, California )

Print Date: Nov 11 2024 8:43PM

Sampled As	:	Contra Costa T
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  91P0759

---

PSDA  &  Rock Fragments				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-	-12-	-13-	-14-	-15-	-16-	-17-	-18-
					(- - - - - Total - - - - - -)			(- - Clay - - -)		(- - - - Silt - - - - -)		(- - - - - - - - - - - - Sand - - - - - - - - - - - -)					( Rock Fragments   (mm) )
				Lab	Clay	Silt	Sand	Fine	CO3	Fine	Coarse	VF	F	M	C	VC	(- - - - - - - - Weight - - - - - - - -)				>2 mm
				Text-	<	.002	.05	<	<	.002	.02	.05	.10	.25	.5	1	2	5	20	.1-	wt %
	Depth			ure	.002	-.05	-2	.0002	.002	-.02	-.05	-.10	-.25	-.50	-1	-2	-5	-20	-75	75	whole
Layer	(cm)	Horz	Prep		(- - - - - - - - - - - - - - - - - - - - - - - - - - % of <2mm Mineral Soil - - - - - - - - - - - - - - - - - - - - - - - - - - -)												(- - - - - - - % of <75mm - - - - - -)				soil
				3A1a1a	3A1a1a	3A1a1a	3A1a1a	3A1a1a		3A1a1a	3A1a1a	3A1a1a	3A1a1a	3A1a1a	3A1a1a	3A1a1a	3B1	3B1	3B1
91P04344	0-1	Oe	S														--	2	--
91P04345	1-6	A1	S	l	18.2	34.5	47.3	7.4		25.2	9.3	15.5	22.2	6.4	2.8	0.4	1	2	--	34	3
91P04346	6-14	A2	S	l	21.3	34.5	44.2	8.3		26.0	8.5	15.7	19.9	5.3	2.4	0.9	3	3	15	44	21
91P04347	14-34	Bt1	S	c	40.9	24.9	34.2	20.3		18.7	6.2	12.0	16.8	3.9	1.3	0.2	3	1	23	43	27
91P04348	34-78	Bt2	S	c	40.7	24.2	35.1	23.9		18.6	5.6	9.9	16.4	4.6	2.8	1.4	1	5	32	54	38
91P04349	78-110	Bt3	S	c	52.0	27.8	20.2	31.0		22.3	5.5	7.0	9.5	2.2	1.0	0.5	--	--	--	13
91P04350	110-136	2C	S	sic	42.1	47.5	10.4	16.0		39.9	7.6	2.9	1.6	2.5	2.4	1.0	15	76	--	92	91
91P04351	0-0		S														--	--	--
91P04352	0-0		S														--	--	--
91P04353	0-0		S														--	--	--
91P04354	0-0		S														--	--	--

---

Bulk Density  &  Moisture				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-	-12-	-13-	-14-
				(Bulk Density)		Cole	(- - - - - - - - - - - Water Content - - - - - - - - - - -)					( Air Dry-Oven Dry )		WRD	Aggst
				33	Oven	Whole	6	10	33	1500	1500 kPa	(- - - - Ratio - - - -)		Whole	Stabl	(- - Ratio/Clay - -)
	Depth			kPa	Dry	Soil	kPa	kPa	kPa	kPa	Moist		Corrected	Soil	2-0.5mm	CEC7	1500 kPa
Layer	(cm)	Horz	Prep	(- - - g cm-3 - - -)			(- - - - - - - - - - - - pct of < 2mm - - - - - - - - - - - -)							cm3 cm-3	%
				4A1d	4A1h				4B1c	3C2a1a		3D1		4C1	3F1a1a	8D1	8D1
91P04344	0-1	Oe	S							16.9		1.024
91P04345	1-6	A1	S	1.49	1.56	0.015			19.1	9.0		1.016		0.15	69	1.02	0.49
91P04346	6-14	A2	S	1.65	1.71	0.010			17.8	8.8		1.018		0.13	52	0.85	0.41
91P04347	14-34	Bt1	S	1.52	1.75	0.039			22.4	13.0		1.028		0.12		0.57	0.32
91P04348	34-78	Bt2	S	1.54	1.80	0.038			21.6	14.5		1.031		0.08		0.63	0.36
91P04349	78-110	Bt3	S	1.48	1.95	0.096			26.1	18.4		1.049		0.11		0.73	0.35
91P04350	110-136	2C	S							14.7		1.049				0.93	0.35

*** Primary Characterization Data ***

Pedon ID: 91CA011002

( Colusa, California )

Print Date: Nov 11 2024 8:43PM

Sampled As	:	Contra Costa T
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  91P0759

---

Water Content				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-	-12-	-13-
				(- - Atterberg - -)		(- - - - - Bulk Density - - - - -)			(- - - - - - - - - - - - - - - - - - - - - - - Water Content - - - - - - - - - - - - - - - - - - - - -)
				(- - - Limits - - -)		Field	Recon	Recon	Field	Recon	(- - - - - - - - - - - - - - Sieved Samples - - - - - - - - - - - - -)
				LL	PI		33	Oven		33	6	10	33	100	200	500
	Depth						kPa	Dry		kPa	kPa	kPa	kPa	kPa	kPa	kPa
Layer	(cm)	Horz	Prep	pct <0.4mm		(- - - - - - - - g cm-3 - - - - - - -)			(- - - - - - - - - - - - - - - - - - - - - - - % of < 2mm - - - - - - - - - - - - - - - - - - - - - -)
				4F1	4F										3C1e1a
91P04344	0-1	Oe	S												25.0
91P04345	1-6	A1	S	35	10										15.4
91P04346	6-14	A2	S	29	12										14.0
91P04347	14-34	Bt1	S												17.2
91P04348	34-78	Bt2	S	44	24										18.8
91P04349	78-110	Bt3	S												24.1
91P04350	110-136	2C	S												18.5

---

Carbon  &  Extractions				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-	-12-	-13-	-14-	-15-	-16-	-17-	-18-	-19-
				(- - - - - Total - - - - -)			Est	OC	C/N	(- - - Dith-Cit Ext - - -)			(- - - - - - Ammonium Oxalate Extraction - - - - - -)						(- - - Na Pyro-Phosphate - - -)
	Depth			C	N	S	OC	(WB)	Ratio	Fe	Al	Mn	Al+½Fe	ODOE	Fe	Al	Si	Mn	C	Fe	Al	Mn
Layer	(cm)	Horz	Prep	(- - - - - - - - - - % of <2 mm - - - - - - - - - -)						(- - - - - - - - - - - - - - - - - - - % of < 2mm - - - - - - - - - - - - - - - - -)								mg kg-1	(- - - - - - % of < 2mm - - - - -)
				6A2d	6B3a	6R3b		6A1c		6C2b	6G7a	6D2a		8J	6C9b	6G12b	6V2b	6D5b
91P04344	0-1	Oe	S	6.64	0.431	0.08		9.51	22	2.4	0.2	0.1		0.08	0.41	0.09	0.02	1015.6
91P04345	1-6	A1	S	1.90	0.205	0.01		2.19		2.5	0.2	0.1	0.29	0.06	0.39	0.10	0.02	1090.5
91P04346	6-14	A2	S	1.23	0.127	0.03		1.39		2.9	0.2	0.1	0.25	0.05	0.31	0.09	0.01	1011.9
91P04347	14-34	Bt1	S	0.62	0.084	0.01		0.64		3.1	0.2	0.1	0.33	0.04	0.37	0.14	0.03	822.9
91P04348	34-78	Bt2	S	0.43	0.064	0.01		0.40		3.1	0.3	0.1	0.41	0.04	0.50	0.16	0.05	706.2
91P04349	78-110	Bt3	S	0.33	0.054	0.01		0.30		3.2	0.3	tr	0.39	0.04	0.44	0.17	0.06	146.0
91P04350	110-136	2C	S	0.31		0.02		0.19		2.5	0.3	0.1	0.31	0.03	0.29	0.17	0.07	528.6
91P04351	0-0		S	18.90	0.377	0.11		21.59
91P04352	0-0		S	7.25	0.547	0.02		8.02
91P04353	0-0		S	2.60	0.232	0.02		2.84
91P04354	0-0		S	1.13		0.03		1.36

*** Primary Characterization Data ***

Pedon ID: 91CA011002

( Colusa, California )

Print Date: Nov 11 2024 8:43PM

Sampled As	:	Contra Costa T
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  91P0759

---

CEC  &  Bases				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-	-12-	-13-	-14-
				(- - - - - - NH4OAC Extractable Bases - - - - -)								CEC8	CEC7	ECEC		(- - - - Base - - - -)
								Sum	Acid-	Extr	KCl	Sum	NH4	Bases	Al	(- Saturation -)
	Depth			Ca	Mg	Na	K	Bases	ity	Al	Mn	Cats	OAC	+Al	Sat	Sum	NH4OAC
Layer	(cm)	Horz	Prep	(- - - - - - - - - - - - - - - - - cmol(+) kg-1 - - - - - - - - - - - - - - - - - - -)							mg kg-1	(- - - - cmol(+) kg-1 - - -)			(- - - - - - - - % - - - - - - - -)
				6N2e	6O2d	6P2b	6Q2b		6H5a			5A3a	5A8b			5C3	5C1
91P04344	0-1	Oe	S	23.9	6.1	0.3	1.6		7.5				29.3
91P04345	1-6	A1	S	12.7	4.2	0.1	0.9	17.9	4.4			22.3	18.6			80	96
91P04346	6-14	A2	S	12.5	4.3	0.2	0.7	17.7	4.2			21.9	18.1			81	98
91P04347	14-34	Bt1	S	13.8	7.2	0.2	0.7	21.9	5.1			27.0	23.3			81	94
91P04348	34-78	Bt2	S	13.7	9.3	0.2	0.6	23.8	7.1			30.9	25.6			77	93
91P04349	78-110	Bt3	S	17.7	16.3	1.0	0.4	35.4	7.9			43.3	37.8			82	94
91P04350	110-136	2C	S	19.6	16.6	1.2	0.4	37.8	5.9			43.7	39.0			86	97

---

Salt				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-	-12-	-13-	-14-	-15-	-16-	-17-	-18-	-19-	-20-
				(- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Water Extracted From Saturated Paste - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -)																	1:2
																			Total	Elec	Elec	Exch
	Depth			Ca	Mg	Na	K	CO3	HCO3	F	Cl	PO4	Br	OAC	SO4	NO2	NO3	H2O	Salts	Cond	Cond	Na	SAR
Layer	(cm)	Horz	Prep	(- - - - - mmol(+) L-1 - - - - -)				(- - - - - - - - - - - - - - - - - - - - - - mmol(-) L-1 - - - - - - - - - - - - - - - - - - - -)										(- - - - % - - - -)		(- - dS m-1 - -)		%
																					4F1a1a1
91P04345	1-6	A1	S																		0.13	1
91P04346	6-14	A2	S																		0.08	1
91P04347	14-34	Bt1	S																		0.06	1
91P04348	34-78	Bt2	S																		0.04	1
91P04349	78-110	Bt3	S																		0.06	3
91P04350	110-136	2C	S																		0.07	3

*** Primary Characterization Data ***

Pedon ID: 91CA011002

( Colusa, California )

Print Date: Nov 11 2024 8:43PM

Sampled As	:	Contra Costa T
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  91P0759

---

pH  &  Carbonates				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-
				(- - - - - - - - - - - - - - - - - - pH - - - - - - - - - - - - - - - - -)						(- - Carbonate - -)		(- - Gypsum - - -)
					CaCl2					As CaCO3		As CaSO4*2H2O		Resist
	Depth				0.01M	H2O	Sat			<2mm	<20mm	<2mm	<20mm	ohms
Layer	(cm)	Horz	Prep	KCl	1:2	1:1	Paste	Oxid	NaF	(- - - - - - - - - - - - % - - - - - - - - - - -)				cm-1
				4C1a2a3	4C1a2a	4C1a2a
91P04344	0-1	Oe	S	5.6	6.5	6.9
91P04345	1-6	A1	S	5.3	6.3	7.1
91P04346	6-14	A2	S	5.0	6.0	6.7
91P04347	14-34	Bt1	S	4.3	6.0	6.8
91P04348	34-78	Bt2	S	3.9	5.4	6.3
91P04349	78-110	Bt3	S	4.4	5.2	6.2
91P04350	110-136	2C	S	4.9	5.9	6.8

---

Organic				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-	-12-	-13-	-14-	-15-	-16-	-17-
				Mineral	OM	OM+	(- Total -)			Fiber Content		NaPyro	Decomp	Limnic	(- - pH - -)		(- - Bulk Density - -)			Proj
	Depth			Content	TC*1.724	Min	C	N	C/N	Unrub	Rub	Color	State	Matter	CaCl2	H2O	33 kPa	33 kPa rewet	OD	Subs
Layer	(cm)	Horz	Prep	(- - - - - - - - % - - - - - - - -)					ratio	% (by vol)								g cm-3		cm cm-1
				5A			6A2d	6B3a								4C1a2a
91P04344	0-1	Oe	S	82			6.64	0.431	22							6.9
91P04345	1-6	A1	S				1.90	0.205								7.1				2
91P04346	6-14	A2	S				1.23	0.127								6.7				14
91P04347	14-34	Bt1	S				0.62	0.084								6.8				18
91P04348	34-78	Bt2	S				0.43	0.064								6.3				27
91P04349	78-110	Bt3	S				0.33	0.054								6.2
91P04350	110-136	2C	S				0.31									6.8				86
91P04351	0-0		S	43			18.90	0.377
91P04352	0-0		S				7.25	0.547
91P04353	0-0		S				2.60	0.232
91P04354	0-0		S				1.13

*** Primary Characterization Data ***

Pedon ID: 91CA011002

( Colusa, California )

Print Date: Nov 11 2024 8:43PM

Sampled As	:	Contra Costa T
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  91P0759

---

Phosphorus				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-	-12-
					(- - - - - - - - - - - - - - - - - - - - - - - Phosphorus - - - - - - - - - - - - - - - - - - - - -)										KCl
				Melanic	NZ	Acid	Anion Exch Resin		Bray	Bray	Olsen	H2O	Citric	Mehlich	Extr
	Depth			Index		Oxal	Available	Capacity	1	2			Acid	III	NO3
Layer	(cm)	Horz	Prep		%	(- - - - - - - - - - - - - - - - - - - - - - - - - - - mg kg-1 - - - - - - - - - - - - - - - - - - - -)
					6S4				6S3
91P04344	0-1	Oe	S		13				38.0
91P04345	1-6	A1	S		16				9.0
91P04346	6-14	A2	S		13				3.0
91P04347	14-34	Bt1	S		23				--
91P04348	34-78	Bt2	S		22				--
91P04349	78-110	Bt3	S		27				--
91P04350	110-136	2C	S		25				--

*** Primary Characterization Data ***

Pedon ID: 91CA011002

( Colusa, California )

Print Date: Nov 11 2024 8:43PM

Sampled As	:	Contra Costa T
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  91P0759

---

Clay Mineralogy (<.002 mm)

-1-

-2-

-3-

-4-

-5-

-6-

-7-

-8-

-9-

-10-

-11-

-12-

-13-

-14-

-15-

-16-

-17-

-18-

X-Ray

Thermal

Elemental

EGME

Inter

SiO2

Al2O3

Fe2O3

MgO

CaO

K2O

Na2O

Retn

preta

Depth

Fract

7A2i

7C3

tion

Layer

(cm)

Horz

ion

( - - - - - - - - - peak size - - - - - - - - - - )

(- - - - - - - - - % - - - - - - - - - -)

(- - - - - - - - - - - - - - - - - - - - - % - - - - - - - - - - - - - - - - - - - - -)

mg g-1

91P04345

1.0-6.0

A1

tcly

KK 3

MI 3

MT 2

MM 2

QZ 1

20

10.6

2.0

HE 1

91P04347

14.0-34.0

Bt1

tcly

KK 3

MI 2

MT 2

MM 2

QZ 1

23

11.9

1.9

91P04349

78.0-110.0

Bt3

tcly

MT 4

KK 3

MM 2

MI 2

QZ 1

24

10.6

1.5

FRACTION INTERPRETATION:
tcly - Total Clay <0.002 mm

MINERAL INTERPRETATION:
HE Hematite	KK Kaolinite	MI Mica	MM Montmorillonite-Mica	MT Montmorillonite
QZ Quartz

RELATIVE PEAK SIZE:

5 Very Large

4 Large

3 Medium

2 Small

1 Very Small

6 No Peaks

*** Primary Characterization Data ***

Pedon ID: 91CA011002

( Colusa, California )

Print Date: Nov 11 2024 8:43PM

Sampled As	:	Contra Costa T
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  91P0759

---

Sand - Silt Mineralogy (2.0-0.002 mm)

-1-

-2-

-3-

-4-

-5-

-6-

-7-

-8-

-9-

-10-

-11-

-12-

-13-

-14-

-15-

-16-

-17-

-18-

X-Ray

Thermal

Optical

EGME

Inter

Tot Re

Grain Count

Retn

preta

Depth

Fract

7B1a2

tion

Layer

(cm)

Horz

ion

( - - - - - - - - peak size - - - - - - - - - )

(- - - - - - - - % - - - - - - - - - -)

(- - - - - - - - - - - - - - - - - - - - % - - - - - - - - - - - - - - - - - -)

mg g-1

91P04344

0.0-1.0

Oe

fs

OT 99

GS tr

91P04345

1.0-6.0

A1

fs

OT 99

91P04346

6.0-14.0

A2

fs

OT 99

91P04347

14.0-34.0

Bt1

fs

OT 99

91P04348

34.0-78.0

Bt2

fs

OT 99

FRACTION INTERPRETATION:
fs - Fine Sand 0.1-0.25 mm

MINERAL INTERPRETATION:
GS Glass	OT Other