*** Primary Characterization Data ***

Pedon ID: S1968CA057035

( Nevada, California )

Print Date: Nov 22 2024 12:26AM

Sampled as on Sep 7, 1968:	Secca Shallow
Revised to correlated:	Secca ; Loamy-skeletal, mixed, superactive, mesic Typic Argixerolls

				United States Department of Agriculture
SSL	-	Project	NL68CA020   NEVADA COUNTY	Natural Resources Conservation Service
	-	Site ID	S1968CA057035   Lat: 39° 16' 24.00" north  Long: 121° 3' 55.00" west  MLRA: 22A	National Soil Survey Center
	-	Pedon No.	68C0112	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
68C00839	A1	A1	0-5	68839			L	L
68C00840	A2	A3	5-15	68840			CL	L
68C00841	Bt	B t	15-48	68841			C	SCL
68C00842	C	C	48-79	68842			CL	L
68C00843	A	A1	0-15	68843

---

Pedon Calculations
Calculation Name	Result	Units of Measure
CEC Activity, CEC7/Clay, Weighted Average	1.17	(NA)
Clay, carbonate free, Weighted Average	24	% wt
Weighted Particles, 0.1-75mm, 75 mm Base	81	% wt
Volume, >2mm, Weighted Average	50	% vol
Clay, total, Weighted Average	24	% wt
Weighted averages based on control section: 15-48 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
68C00839	0-5	A1	S	l	13.3	42.7	44.0			18.8	23.9	11.9	10.7	4.8	9.7	6.9	16	3	--	45	19
68C00840	5-15	A2	S	l	16.5	40.1	43.4			18.8	21.3	10.5	10.1	5.0	9.5	8.3	5	13	47	77	76
68C00841	15-48	Bt	S	scl	23.6	23.7	52.7			12.8	10.9	7.2	8.4	5.7	15.1	16.3	13	4	48	81	70
68C00842	48-79	C	S	l	16.4	36.7	46.9			22.5	14.2	9.6	10.6	6.0	12.6	8.1	10	13	5	55	28
68C00843	0-15	A	S														24	5	--

*** Primary Characterization Data ***

Pedon ID: S1968CA057035

( Nevada, California )

Print Date: Nov 22 2024 12:26AM

Sampled As	:	Secca Shallow
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  68C0112

---

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	%
				4A1f	4A1h				4B1c	3C2a1a		3D1		4C1		8D1	8D1
68C00839	0-5	A1	S	1.38	1.39	0.002			14.4	8.9		1.068		0.07		1.40	0.67
68C00840	5-15	A2	S							12.1		1.042				1.36	0.73
68C00841	15-48	Bt	S	1.15	1.84	0.071			47.4	13.0		1.042		0.20		1.17	0.55
68C00842	48-79	C	S	1.46	1.72	0.045			29.3	14.8		1.042		0.17		2.70	0.90
68C00843	0-15	A	S							7.4		1.042

---

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
68C00841	15-48	Bt	S	28.12599	12

---

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 - - - - -)
					6B1a			6A1a		6C1a	6G7a
68C00839	0-5	A1	S		0.100			1.93	19	4.3	0.2
68C00840	5-15	A2	S		0.084			1.59	19	4.7	0.1
68C00841	15-48	Bt	S		0.040			0.53	13	4.1	0.2
68C00842	48-79	C	S					0.19		1.8	0.2
68C00843	0-15	A	S		0.070			1.33

*** Primary Characterization Data ***

Pedon ID: S1968CA057035

( Nevada, California )

Print Date: Nov 22 2024 12:26AM

Sampled As	:	Secca Shallow
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  68C0112

---

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 - - -)			(- - - - - - - - % - - - - - - - -)
				6N2a	6O2a	6P2a	6Q2a		6H2a			5A3a	5A6a			5C3	5C1
68C00839	0-5	A1	S	7.7	6.9	tr	0.4	15.0	5.9			20.9	18.6			72	81
68C00840	5-15	A2	S	9.1	9.0	tr	0.1	18.2	7.7			25.9	22.4			70	81
68C00841	15-48	Bt	S	13.1	12.7	0.1	0.1	26.0				26.0	27.5			100	95
68C00842	48-79	C	S	22.7	20.1	tr	tr	42.8				42.8	44.3			100	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 - -)

%

68C00839

0-5

A1

S

--

68C00840

5-15

A2

S

--

68C00841

15-48

Bt

S

tr

68C00842

48-79

C

S

--

---

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

8C1e

8C1a

68C00839

0-5

A1

S

5.6

6.0

68C00840

5-15

A2

S

5.5

6.0

68C00841

15-48

Bt

S

6.0

6.4

68C00842

48-79

C

S

6.2

6.7

68C00843

0-15

A

S

5.7

6.2

*** Primary Characterization Data ***

Pedon ID: S1968CA057035

( Nevada, California )

Print Date: Nov 22 2024 12:26AM

Sampled As	:	Secca Shallow
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  68C0112

---

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	7A2e																	tion
Layer	(cm)	Horz	ion	( - - - - - - - - - peak size - - - - - - - - - - )					(- - - - - - - - - % - - - - - - - - - -)				(- - - - - - - - - - - - - - - - - - - - - % - - - - - - - - - - - - - - - - - - - - -)							mg g-1
68C00841	15.0-48.0	Bt	tcly	MT 4	VR 3	KK 1

FRACTION INTERPRETATION:
tcly - Total Clay <0.002 mm

MINERAL INTERPRETATION:
KK Kaolinite	MT Montmorillonite	VR Vermiculite

RELATIVE PEAK SIZE:

5 Very Large

4 Large

3 Medium

2 Small

1 Very Small

6 No Peaks