*** Primary Characterization Data ***

Pedon ID: S2018CA079009

( San Luis Obispo, California )

Print Date: Dec 6 2025 7:40AM

Sampled as on Nov 11, 2018:	Camatta ; Loamy, mixed, superactive, thermic, shallow Xeric Petrocalcids
Revised to :

				United States Department of Agriculture
SSL	-	Project	C2019USCA028   Cal Poly Soil Land Judging	Natural Resources Conservation Service
	-	Site ID	S2018CA079009   Lat: 35° 32' 0.42" north  Long: 120° 21' 1.11" west  MLRA: 15	National Soil Survey Center
	-	Pedon No.	19N0138	Kellogg Soil Survey Laboratory
	-	General Methods 1B1A, 2A1, 2B		Lincoln, Nebraska 68508-3866

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Layer	Horizon	Orig Hzn	Depth (cm)	Field Label 1	Field Label 2	Field Label 3	Field Texture	Lab Texture
19N00736	A	A	0-21	S2018CA079009-1			L	SIL
19N00737	B1	B1	21-63	S2018CA079009-2			L	SIL
19N00738	B2	B2	63-101	S2018CA079009-3			L	SIL
19N00739	B3	B3	101-135	S2018CA079009-4				L
19N00740	B4	B4	135-148	S2018CA079009-5			FSL	FSL
19N00741	B5	B5	148-175	S2018CA079009-6			FSL	LFS

---

---

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
19N00736	0-21	A	N	sil	22.6	53.9	23.5		1.0	37.1	16.8	17.0	4.7	1.1	0.5	0.2
19N00737	21-63	B1	N	sil	25.6	53.8	20.6		2.4	36.7	17.1	12.5	5.5	1.6	0.8	0.2
19N00738	63-101	B2	N	sil	24.3	54.1	21.6		2.1	37.3	16.8	11.9	5.1	2.5	1.6	0.5
19N00739	101-135	B3	N	l	26.2	45.5	28.3		2.7	35.3	10.2	9.5	5.0	5.6	5.9	2.3
19N00740	135-148	B4	N	fsl	11.3	31.0	57.7		1.5	15.5	15.5	22.5	19.0	7.6	5.4	3.2
19N00741	148-175	B5	N	lfs	4.6	10.8	84.6			4.7	6.1	22.5	56.9	4.7	0.5	--

*** Primary Characterization Data ***

Pedon ID: S2018CA079009

( San Luis Obispo, California )

Print Date: Dec 6 2025 7:40AM

Sampled As	:	Camatta		Loamy, mixed, superactive, thermic, shallow Xeric Petrocalcids
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  19N0138

---

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

%

3D1

19N00736

0-21

A

N

1.034

19N00737

21-63

B1

N

1.037

19N00738

63-101

B2

N

1.037

19N00739

101-135

B3

N

1.043

19N00740

135-148

B4

N

1.020

19N00741

148-175

B5

N

1.010

---

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 - - - - -)
				4H2a	4H2a	4H2a
19N00736	0-21	A	N	2.78	0.23	0.02	1.9		8
19N00737	21-63	B1	N	2.10	0.12	0.02	0.7		5
19N00738	63-101	B2	N	2.39	0.10	0.02	0.8		8
19N00739	101-135	B3	N	1.90	0.07	0.01	0.3		4
19N00740	135-148	B4	N	4.81	0.05	0.01	0.2		5
19N00741	148-175	B5	N	0.04	0.05	0.04	tr		1

---

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 - - -)			(- - - - - - - - % - - - - - - - -)
				4B1a1a	4B1a1a	4B1a1a	4B1a1a		4B2b1a1				4B1a1a
19N00736	0-21	A	N	60.9*	3.8	0.1	1.0	65.8					25.2				100
19N00737	21-63	B1	N	69.9*	5.3	0.2	0.5	75.9					24.1				100
19N00738	63-101	B2	N	56.5*	5.4	0.6	0.4	62.9					24.1				100
19N00739	101-135	B3	N	65.6*	8.8	1.4	0.4	76.2					26.4				100
19N00740	135-148	B4	N	53.0*	6.0	0.6	0.3	59.9					10.6				100
19N00741	148-175	B5	N	9.2*	2.4	0.4	0.2	12.2	0.3			12.5	7.1			98	100

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

*** Primary Characterization Data ***

Pedon ID: S2018CA079009

( San Luis Obispo, California )

Print Date: Dec 6 2025 7:40AM

Sampled As	:	Camatta		Loamy, mixed, superactive, thermic, shallow Xeric Petrocalcids
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  19N0138

---

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				4E1a1a1a1
19N00736	0-21	A	N		7.6	8.1				8
19N00737	21-63	B1	N		7.8	8.3				12
19N00738	63-101	B2	N		7.8	8.4				13
19N00739	101-135	B3	N		7.9	8.4				13
19N00740	135-148	B4	N		8.0	8.5				38
19N00741	148-175	B5	N		8.0	8.7				tr