*** Primary Characterization Data ***

Pedon ID: S1968CA057007

( Nevada, California )

Print Date: Nov 22 2024 12:45AM

Sampled as on Sep 1, 1968:	Secca
Revised to correlated:	SECCA ; Fine, mixed, mesic Mollic Haploxeralfs

				United States Department of Agriculture
SSL	-	Project	NL68CA020   NEVADA COUNTY	Natural Resources Conservation Service
	-	Site ID	S1968CA057007   Lat: 39° 9' 13.00" north  Long: 121° 5' 52.00" west  MLRA: 22A	National Soil Survey Center
	-	Pedon No.	68C0111	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
68C00832	A1	A1	0-15	68832			L	SIL
68C00833	A2	A3	15-38	68833			L	SIL
68C00834	Bt1	B1 t	38-56	68834			CL	SICL
68C00835	Bt2	B2 t	56-91	68835			C	C
68C00836	Bt3	B3 t	91-114	68836			SIC	C
68C00837	C	C	114-145	68837				CL
68C00838	A1	A1	0-15	68838

---

Pedon Calculations
Calculation Name	Result	Units of Measure
CEC Activity, CEC7/Clay, Weighted Average	0.65	(NA)
Clay, carbonate free, Weighted Average	50	% wt
Weighted Particles, 0.1-75mm, 75 mm Base	13	% wt
Volume, >2mm, Weighted Average	27	% vol
Clay, total, Weighted Average	50	% wt
LE, Whole Soil, Summed to 1m	4	cm/m
Weighted averages based on control section: 38-89 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
68C00832	0-15	A1	S	sil	17.7	58.8	23.5			40.1	18.7	7.8	6.6	2.8	3.9	2.4	5	44	10	65	60
68C00833	15-38	A2	S	sil	23.8	57.4	18.8			41.8	15.6	6.5	5.1	2.2	2.8	2.2	2	25	9	44	38
68C00834	38-56	Bt1	S	sicl	31.6	50.7	17.7			37.2	13.5	5.3	4.2	2.0	3.5	2.7	1	1	9	22	45
68C00835	56-91	Bt2	S	c	60.5	29.5	10.0			22.1	7.4	3.7	3.0	1.2	1.1	1.0	2	--	--	8	41
68C00836	91-114	Bt3	S	c	42.3	35.3	22.4			29.2	6.1	4.9	6.1	2.8	4.8	3.8	11	24	--	46	35
68C00837	114-145	C	S	cl	31.6	35.2	33.2			26.2	9.0	6.6	8.3	4.0	6.7	7.6	28	22	--	63	50
68C00838	0-15	A1	S														4	37	--

*** Primary Characterization Data ***

Pedon ID: S1968CA057007

( Nevada, California )

Print Date: Nov 22 2024 12:45AM

Sampled As	:	Secca
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  68C0111

---

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
68C00832	0-15	A1	S	0.99	0.99	--			19.8	11.0		1.068		0.06		1.18	0.62
68C00833	15-38	A2	S	1.22	1.32	0.020			33.9	12.6		1.068		0.20		0.88	0.53
68C00834	38-56	Bt1	S	1.36	1.45	0.015			29.5	14.9		1.068		0.14		0.74	0.47
68C00835	56-91	Bt2	S	1.32	1.79	0.075			35.8	24.7		1.068		0.11		0.60	0.41
68C00836	91-114	Bt3	S	0.98	1.27	0.073			60.4	25.6		1.068		0.28		0.96	0.61
68C00837	114-145	C	S	1.12	1.33	0.040			53.3	22.8		1.068		0.24		1.00	0.72
68C00838	0-15	A1	S							11.1		1.068

---

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
68C00832	0-15	A1	S	32.79498	5
68C00834	38-56	Bt1	S	37.51999	12
68C00835	56-91	Bt2	S	62.65599	33
68C00837	114-145	C	S	46.27798	16

---

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
68C00832	0-15	A1	S		0.050			1.50	30	4.9	0.4
68C00833	15-38	A2	S		0.045			0.71	16	5.5	0.3
68C00834	38-56	Bt1	S					0.64		6.0	0.4
68C00835	56-91	Bt2	S					0.23		5.5	0.4
68C00836	91-114	Bt3	S							3.3	0.2
68C00837	114-145	C	S							4.4	0.2
68C00838	0-15	A1	S		0.099			1.69

*** Primary Characterization Data ***

Pedon ID: S1968CA057007

( Nevada, California )

Print Date: Nov 22 2024 12:45AM

Sampled As	:	Secca
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  68C0111

---

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 - - -)			(- - - - - - - - % - - - - - - - -)
				6N2b	6O2c	6P2a	6Q2a		6H2a			5A3a	5A6a			5C3	5C1
68C00832	0-15	A1	S	10.4	6.8	0.1	0.2	17.5	7.9			25.4	20.8			69	84
68C00833	15-38	A2	S	9.9	7.9	0.1	0.1	18.0	5.6			23.6	20.9			76	86
68C00834	38-56	Bt1	S	10.2	10.7	0.1	0.1	21.1	6.4			27.5	23.5			77	90
68C00835	56-91	Bt2	S	16.3*	20.1	0.2	0.2	36.8				36.8	36.4			100	100
68C00836	91-114	Bt3	S	17.3	20.8	0.3	0.1	38.5				38.5	40.6			100	95
68C00837	114-145	C	S	12.6	15.6	0.3	0.1	28.6	4.6			33.2	31.7			86	90

^*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 - -)

%

68C00832

0-15

A1

S

tr

68C00833

15-38

A2

S

tr

68C00834

38-56

Bt1

S

tr

68C00835

56-91

Bt2

S

1

68C00836

91-114

Bt3

S

1

68C00837

114-145

C

S

1

*** Primary Characterization Data ***

Pedon ID: S1968CA057007

( Nevada, California )

Print Date: Nov 22 2024 12:45AM

Sampled As	:	Secca
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  68C0111

---

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

68C00832

0-15

A1

S

5.7

6.2

68C00833

15-38

A2

S

5.9

6.4

68C00834

38-56

Bt1

S

5.8

6.3

68C00835

56-91

Bt2

S

6.2

6.6

68C00836

91-114

Bt3

S

6.3

6.7

68C00837

114-145

C

S

6.1

6.3

68C00838

0-15

A1

S

5.7

6.1

*** Primary Characterization Data ***

Pedon ID: S1968CA057007

( Nevada, California )

Print Date: Nov 22 2024 12:45AM

Sampled As	:	Secca
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  68C0111

---

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

68C00832

0.0-15.0

A1

tcly

KK 4

MT 3

68C00834

38.0-56.0

Bt1

tcly

KK 4

MT 2

MI 2

68C00835

56.0-91.0

Bt2

tcly

KK 4

MT 3

68C00837

114.0-145.0

C

tcly

KK 4

MT 3

FRACTION INTERPRETATION:
tcly - Total Clay <0.002 mm

MINERAL INTERPRETATION:
KK Kaolinite	MI Mica	MT Montmorillonite

RELATIVE PEAK SIZE:

5 Very Large

4 Large

3 Medium

2 Small

1 Very Small

6 No Peaks