*** Primary Characterization Data ***

Pedon ID: S1981CA071001

( San Bernardino, California )

Print Date: Apr 26 2024 5:07AM

Sampled as on Jun 1, 1981:	Cristobal ; Loamy-skeletal, mixed, hyperthermic Typic Haplargid
Revised to correlated:	CHUCKAWALLA ; Loamy-skeletal, mixed, hyperthermic Typic Haplargids

				United States Department of Agriculture
SSL	-	Project	CP81AZ184   COLORADO RIVER INDIAN RESERVATION (AZ-CA)	Natural Resources Conservation Service
	-	Site ID	S1981CA071001   Lat: 34° 9' 28.01" north  Long: 114° 21' 12.00" west  MLRA: 31	National Soil Survey Center
	-	Pedon No.	81P0377	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
81P02041	Ek	A2ca	0-2				SIL	L
81P02042	BAtk	BAtca	2-4					L
81P02043	Bt	B2t	4-20					COSL
81P02044	Bk11	B31ca	20-34					COSL
81P02045	Bk12	B32ca	34-56					LCOS
81P02046	Bk2	C1ca	56-76					LCOS
81P02047	Bk3	C2ca	76-105					LCOS
81P02048	Bk4	C3ca	105-150					LCOS

---

Pedon Calculations
Calculation Name	Result	Units of Measure
CEC Activity, CEC7/Clay, Weighted Average	0.91	(NA)
Clay, carbonate free, Weighted Average	11	% wt
Weighted Particles, 0.1-75mm, 75 mm Base	90	% wt
Volume, >2mm, Weighted Average	58	% vol
Clay, total, Weighted Average	11	% wt
Weighted averages based on control section: 2-52 cm

---

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	3B1	3B1	3B1
81P02041	0-2	Ek	S	l	13.1	46.9	40.0			20.9	26.0	22.0	10.0	2.5	2.3	3.2	3	53	19	80	75
81P02042	2-4	BAtk	S	l	21.4	31.5	47.1			14.8	16.7	15.4	12.0	6.4	7.2	6.1	6	22	16	62	45
81P02043	4-20	Bt	S	cosl	12.4	14.4	73.2			7.0	7.4	9.8	12.3	12.3	15.3	23.5	15	43	12	89	70
81P02044	20-34	Bk11	S	cosl	9.0	15.5	75.5			6.6	8.9	8.4	14.4	14.0	14.2	24.5	15	30	18	88	63
81P02045	34-56	Bk12	S	lcos	9.5	10.3	80.2			5.4	4.9	6.9	14.9	15.3	15.9	27.2	10	41	29	95	80
81P02046	56-76	Bk2	S	lcos	7.3	7.1	85.6			2.8	4.3	6.1	14.8	16.4	17.9	30.4	12	36	21	94	69
81P02047	76-105	Bk3	S	lcos	8.1	4.7	87.2			2.4	2.3	4.6	9.7	15.1	24.0	33.8	14	32	26	95	72
81P02048	105-150	Bk4	S	lcos	6.9	5.9	87.2			2.8	3.1	6.4	17.4	18.7	21.7	23.0	17	36	16	94	69

*** Primary Characterization Data ***

Pedon ID: S1981CA071001

( San Bernardino, California )

Print Date: Apr 26 2024 5:07AM

Sampled As	:	Cristobal		Loamy-skeletal, mixed, hyperthermic Typic Haplargid
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  81P0377

---

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	4E2a1a1a1	4C1		8D1	8D1
81P02041	0-2	Ek	S	1.31	1.37	0.006			20.8	6.4		1.014		0.08		1.06	0.49
81P02042	2-4	BAtk	S							9.4		1.026				0.99	0.44
81P02043	4-20	Bt	S							7.7		1.025				1.36	0.62
81P02044	20-34	Bk11	S	1.48	1.49	0.001			13.5	5.1		1.016		0.06		0.86	0.57
81P02045	34-56	Bk12	S							4.1			1.014			0.55	0.43
81P02046	56-76	Bk2	S							3.4		1.010				0.60	0.47
81P02047	76-105	Bk3	S							3.3		1.009				0.57	0.41
81P02048	105-150	Bk4	S	1.74	1.74	--			6.9	2.8		1.007		0.03		0.54	0.41

---

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 - - - - - - - - - - - - - - - - - - - - - -)

4F

81P02043

4-20

Bt

S

NP

---

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 - - - - -)

6B3a

6A1c

6C2b

6G7a

6D2a

81P02041

0-2

Ek

S

0.024

0.20

8

tr

0.1

tr

81P02042

2-4

BAtk

S

0.014

0.14

10

tr

tr

tr

81P02043

4-20

Bt

S

0.038

0.12

3

tr

tr

tr

81P02044

20-34

Bk11

S

0.007

0.12

17

tr

tr

tr

81P02045

34-56

Bk12

S

0.12

tr

--

tr

81P02046

56-76

Bk2

S

0.13

tr

tr

tr

81P02047

76-105

Bk3

S

0.13

0.9

tr

tr

81P02048

105-150

Bk4

S

0.13

0.9

tr

tr

*** Primary Characterization Data ***

Pedon ID: S1981CA071001

( San Bernardino, California )

Print Date: Apr 26 2024 5:07AM

Sampled As	:	Cristobal		Loamy-skeletal, mixed, hyperthermic Typic Haplargid
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  81P0377

---

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						5A8b			5C3	5C1
81P02041	0-2	Ek	S	34.0*	2.9	0.3	0.8						13.9			100	100
81P02042	2-4	BAtk	S	36.6*	3.0	0.7	1.5						21.2			100	100
81P02043	4-20	Bt	S	29.4*	2.7	1.3	1.9						16.9			100	100
81P02044	20-34	Bk11	S	26.8*	1.1	2.5	0.9						7.7			100	100
81P02045	34-56	Bk12	S	42.0*	1.0	3.1	0.3						5.2			100	100
81P02046	56-76	Bk2	S	26.7*	0.8	3.2	0.1						4.4			100	100
81P02047	76-105	Bk3	S	26.3*	0.7	2.8	0.1						4.6			100	100
81P02048	105-150	Bk4	S	24.8*	0.6	2.3	0.1						3.7			100	100

^*Extractable Ca may contain Ca from calcium carbonate or gypsum., CEC7 base saturation set to 100.

---

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 - -)		%
				6N1b	6O1b	6P1b	6Q1b	6I1b	6J1b	6U1a	6K1c				6L1c	6W1a	6M1c	8A	8D5	8A3a	4F1a1a1		5E
81P02041	0-2	Ek	S																		0.16	2
81P02042	2-4	BAtk	S																		0.17	3
81P02043	4-20	Bt	S																		0.23	8
81P02044	20-34	Bk11	S	99.5	8.1	77.9	1.1	--	0.9	--	85.1				64.1	--	69.9	30.0	0.3	13.32	1.94	2	11
81P02045	34-56	Bk12	S	35.3	31.7	182.9	1.3	--	1.5	--	131.7				127.2	--	--	27.5	0.4	16.12	4.73	60	32
81P02046	56-76	Bk2	S	122.8	9.2	77.2	0.5	--	0.8	--	87.2				71.6	--	97.2	25.7	0.3	14.71	3.98	28	10
81P02047	76-105	Bk3	S	106.6	7.4	77.3	0.4	--	0.7	--	89.1				56.0	--	97.2	25.3	0.3	14.17	3.11	18	10
81P02048	105-150	Bk4	S	69.2	5.7	64.3	0.3	--	0.7	--	68.5				24.9	--	65.2	21.9	0.2	11.34	2.17	24	11

*** Primary Characterization Data ***

Pedon ID: S1981CA071001

( San Bernardino, California )

Print Date: Apr 26 2024 5:07AM

Sampled As	:	Cristobal		Loamy-skeletal, mixed, hyperthermic Typic Haplargid
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  81P0377

---

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
					4C1a2a	4C1a2a	8C1b			6E1g	6E4	4E2a1a1a1		8E1
81P02041	0-2	Ek	S		7.9	8.6				5	5
81P02042	2-4	BAtk	S		8.1	8.7				8	13
81P02043	4-20	Bt	S		8.1	8.8				5	9
81P02044	20-34	Bk11	S		8.0	8.1	7.8			5	7	--
81P02045	34-56	Bk12	S		8.0	7.9	7.7			7	8	1
81P02046	56-76	Bk2	S		8.0	7.9	7.6			5	6	--
81P02047	76-105	Bk3	S		7.9	7.9	7.6			6	5	--		330
81P02048	105-150	Bk4	S		8.0	8.0	7.8			6	6	--

*** Primary Characterization Data ***

Pedon ID: S1981CA071001

( San Bernardino, California )

Print Date: Apr 26 2024 5:07AM

Sampled As	:	Cristobal		Loamy-skeletal, mixed, hyperthermic Typic Haplargid
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  81P0377

---

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

7A3b

&nbsp;

7C3

&nbsp;

tion

Layer

(cm)

Horz

ion

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

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

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

mg g-1

81P02041

0.0-2.0

Ek

tcly

MT 3

MI 2

KK 2

&nbsp;

&nbsp;

KK 15

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

6.1

&nbsp;

&nbsp;

2.7

&nbsp;

&nbsp;

&nbsp;

81P02043

4.0-20.0

Bt

tcly

MI 2

MT 1

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

3.4

&nbsp;

&nbsp;

2.7

&nbsp;

&nbsp;

&nbsp;

81P02044

20.0-34.0

Bk11

tcly

MT 2

PG 2

KK 1

MI 1

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

1.4

&nbsp;

&nbsp;

1.6

&nbsp;

&nbsp;

&nbsp;

81P02045

34.0-56.0

Bk12

tcly

PG 3

MT 2

KK 1

MI 1

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

0.6

&nbsp;

&nbsp;

0.9

&nbsp;

&nbsp;

&nbsp;

81P02048

105.0-150.0

Bk4

tcly

MT 3

PG 2

MI 2

CL 1

KK 1

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

1.7

&nbsp;

&nbsp;

1.5

&nbsp;

&nbsp;

&nbsp;

FRACTION INTERPRETATION:
tcly - Total Clay <0.002 mm	&nbsp;	&nbsp;	&nbsp;	&nbsp;

MINERAL INTERPRETATION:
CL Chlorite	KK Kaolinite	MI Mica	MT Montmorillonite	PG Palygorskite

RELATIVE PEAK SIZE:

5 Very Large

4 Large

3 Medium

2 Small

1 Very Small

6 No Peaks