*** Primary Characterization Data ***

Pedon ID: 93CA079001A

( San Luis Obispo, California )

Print Date: May 20 2024 6:20AM

Sampled as on May 10, 1993:	Diablo ; Fine, montmorillonitic, thermic Typic Haploxerert
Revised to correlated on Sep 1, 1996:	Diablo ; Fine, smectitic, thermic Aridic Haploxerert

				United States Department of Agriculture
SSL	-	Project	CP93CA181   RANGE-TEAM	Natural Resources Conservation Service
	-	Site ID	93CA079001A   Lat: 35° 20' 39.50" north  Long: 120° 44' 31.70" west  MLRA: 15	National Soil Survey Center
	-	Pedon No.	93P0662	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
93P04624	A	A	0-6				L	CL
93P04625	Bw	Bw	6-65				C	SICL
93P04626	Bk	Bk	65-97				C	CL
93P04627	BCk	BCk	97-124				C	CL

---

Pedon Calculations
Calculation Name	Result	Units of Measure
CEC Activity, CEC7/Clay, Weighted Average	0.78	(NA)
Clay, carbonate free, Weighted Average	36	% wt
Weighted Particles, 0.1-75mm, 75 mm Base	15	% wt
Volume, >2mm, Weighted Average	1	% vol
Clay, total, Weighted Average	37	% wt
Weighted averages based on control section: 25-100 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	3A1a1a	3A1a1a	3B1	3B1	3B1
93P04624	0-6	A	S	cl	28.1	51.5	20.4	13.6		35.5	16.0	7.3	6.7	3.0	1.9	1.5	3	3	--	18	6
93P04625	6-65	Bw	S	sicl	36.4	44.5	19.1	21.0		31.2	13.3	6.7	6.5	3.1	1.9	0.9	1	1	--	14	2
93P04626	65-97	Bk	S	cl	36.8	42.5	20.7	18.7	2.1	29.5	13.0	6.8	8.0	3.4	1.4	1.1	4	--	--	17	4
93P04627	97-124	BCk	S	cl	38.1	41.8	20.1	17.6	4.6	29.8	12.0	6.8	7.1	3.5	1.9	0.8	tr	--	--	13	tr

*** Primary Characterization Data ***

Pedon ID: 93CA079001A

( San Luis Obispo, California )

Print Date: May 20 2024 6:20AM

Sampled As	:	Diablo		Fine, montmorillonitic, thermic Typic Haploxerert
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  93P0662

---

Water Dispersible PSDA				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-	-12-
				(- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Water Dispersible - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -)
				(- - - - - Total - - - - - -)			(- - Clay - - -)		(- - - - Silt - - - - -)		(- - - - - - - - - - - - Sand - - - - - - - - - - - -)
				Clay	Silt	Sand	F	CO3	F	C	VF	F	M	C	VC
				<	.002	.05	<	<	.002	.02	.05	.10	.25	.5	1
	Depth			.002	-.05	-2	.0002	.002	-.02	-.05	-.10	-.25	-.50	-1	-2
Layer	(cm)	Horz	Prep	(- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - % of <2mm - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -)
				3A1a6a	3A1a6a	3A1a6a			3A1a6a	3A1a6a	3A1a6a	3A1a6a	3A1a6a	3A1a6a	3A1a6a
93P04624	0-6	A	S	15.0	57.9	27.1			40.4	17.5	8.8	8.5	5.1	2.9	1.8

---

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	%
										3C2a1a		3D1			3F1a1a	8D1	8D1
93P04624	0-6	A	S							13.9		1.023			82	1.03	0.49
93P04625	6-65	Bw	S							13.8		1.027				0.88	0.38
93P04626	65-97	Bk	S							13.0		1.022				0.64	0.35
93P04627	97-124	BCk	S							12.8		1.019				0.51	0.34

---

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

3C1e1a

93P04624

0-6

A

S

20.0

93P04625

6-65

Bw

S

18.8

93P04626

65-97

Bk

S

17.5

93P04627

97-124

BCk

S

18.3

*** Primary Characterization Data ***

Pedon ID: 93CA079001A

( San Luis Obispo, California )

Print Date: May 20 2024 6:20AM

Sampled As	:	Diablo		Fine, montmorillonitic, thermic Typic Haploxerert
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  93P0662

---

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	6B4a			6A1c		6C2b	6G7a	6D2a
93P04624	0-6	A	S	3.03	0.306			3.28	11	1.8	0.2	--
93P04625	6-65	Bw	S	1.28	0.125			1.25	10
93P04626	65-97	Bk	S	1.17				0.63
93P04627	97-124	BCk	S					0.36

---

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
93P04624	0-6	A	S	11.1	14.9	0.5	0.5	27.0	8.6			35.6	29.0			76	93
93P04625	6-65	Bw	S	11.0	19.3	0.5	0.2	31.0	4.1			35.1	32.0			88	97
93P04626	65-97	Bk	S	40.5*	23.4	1.3	0.1						23.5			100	100
93P04627	97-124	BCk	S	41.9*	26.6	2.6	--						19.5			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
93P04624	0-6	A	S	7.9	20.1	3.4	0.3	--	1.4	0.1	3.9				3.6	3.3	19.3	54.7	0.1	3.02	1.04	1	1
93P04625	6-65	Bw	S																		0.18	2
93P04626	65-97	Bk	S	0.7	1.3	3.6	--	--	4.5	0.2	0.7				0.2	--	0.1	51.7	tr	0.53	0.28	5	4
93P04627	97-124	BCk	S	0.4	0.7	6.2	--	--	5.3	0.4	1.7				0.4	tr	0.1	56.1	tr	0.71	0.38	12	8

*** Primary Characterization Data ***

Pedon ID: 93CA079001A

( San Luis Obispo, California )

Print Date: May 20 2024 6:20AM

Sampled As	:	Diablo		Fine, montmorillonitic, thermic Typic Haploxerert
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  93P0662

---

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		4E2a1a1a1
93P04624	0-6	A	S		5.3	6.0	5.7					--
93P04625	6-65	Bw	S		6.1	6.7
93P04626	65-97	Bk	S		8.0	8.7	8.2			6
93P04627	97-124	BCk	S		8.2	9.1	8.7			18

*** Primary Characterization Data ***

Pedon ID: 93CA079001A

( San Luis Obispo, California )

Print Date: May 20 2024 6:20AM

Sampled As	:	Diablo		Fine, montmorillonitic, thermic Typic Haploxerert
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  93P0662

---

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

&nbsp;

&nbsp;

7C3

&nbsp;

tion

Layer

(cm)

Horz

ion

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

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

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

mg g-1

93P04624

0.0-6.0

A

tcly

VR 3

MI 2

KK 1

CM 1

QZ 1

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

17

10.3

&nbsp;

&nbsp;

2.3

&nbsp;

&nbsp;

&nbsp;

FD 1

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

&nbsp;

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

MINERAL INTERPRETATION:
CM Chlorite-Mica	FD Feldspar	KK Kaolinite	MI Mica	QZ Quartz
VR Vermiculite	 	 	 	 

RELATIVE PEAK SIZE:

5 Very Large

4 Large

3 Medium

2 Small

1 Very Small

6 No Peaks

*** Primary Characterization Data ***

Pedon ID: 93CA079001A

( San Luis Obispo, California )

Print Date: May 20 2024 6:20AM

Sampled As	:	Diablo		Fine, montmorillonitic, thermic Typic Haploxerert
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  93P0662

---

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

93P04624

0.0-6.0

A

csi

 

 

 

 

 

 

 

 

 

76

QZ 68

FK 19

FE 5

PR 2

BT 1

CD 1

 

 

 

 

 

 

 

 

 

 

 

MS 1

PO 1

OP 1

HN tr

AM tr

GN tr

 

 

 

 

 

 

 

 

 

 

FP tr

ZR tr

MZ tr

GS tr

AP tr

TM tr

 

FRACTION INTERPRETATION:
csi - Coarse Silt 0.02-0.05 mm	 	 	 	 

MINERAL INTERPRETATION:
AM Amphibole	AP Apatite	BT Biotite	CD Chert (Chalcedony	FE Iron Oxides (Goethite
FK Potassium Feldspar	FP Plagioclase Feldspar	GN Garnet	GS Glass	HN Hornblende
MS Muscovite	MZ Monazite	OP Opaques	PO Plant Opal	PR Pyroxene
QZ Quartz	TM Tourmaline	ZR Zircon