*** Primary Characterization Data ***

Pedon ID: S68CA061002

( Placer, California )

Print Date: Nov 21 2024 12:06PM

Sampled as on Aug 4, 1968:	Waca
Revised to correlated:	Sky ; Medial-skeletal, amorphic Humic Xeric Vitricryands

				United States Department of Agriculture
SSL	-	Project	NL68CA017   TAHOE BASIN	Natural Resources Conservation Service
	-	Site ID	68CA693-016   Lat: 39° 4' 13.68" north  Long: 120° 13' 46.77" west  MLRA: 22	National Soil Survey Center
	-	Pedon No.	68C0090	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
68C00735	O	O1	5-0	68735
68C00736	A1	A11	0-3	68736			L	COSL
68C00737	A2	A12	3-8	68737			L	COSL
68C00738	A3	A13	8-20	68738			L	COSL
68C00739	AC	AC	20-33	68739			L	COSL
68C00740	C1	C 1	33-53	68740			L	COSL
68C00741	C2	C 2	53-74	68741			L	SL
68C00742	C3	C 3	74-89	68742			L	COSL
68C00743	C4	C 4	89-99	68743			L
68C00744	R	R	99-100	68744
68C00745	A	A	0-33	68745

---

Pedon Calculations
Calculation Name	Result	Units of Measure
CEC Activity, CEC7/Clay, Weighted Average	8.14	(NA)
Clay, carbonate free, Weighted Average	4	% wt
Weighted Particles, 0.1-75mm, 75 mm Base	71	% wt
Volume, >2mm, Weighted Average	33	% vol
Clay, total, Weighted Average	4	% wt
Weighted averages based on control section: 25-88 cm

*** Primary Characterization Data ***

Pedon ID: S68CA061002

( Placer, California )

Print Date: Nov 21 2024 12:06PM

Sampled As	:	Waca
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  68C0090

---

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
68C00735	5-0	O	S														--	--	--
68C00736	0-3	A1	S	cosl	7.9	32.8	59.3			21.4	11.4	11.9	13.7	6.6	10.6	16.5	30	19	--	47	49
68C00737	3-8	A2	S	cosl	4.7	35.4	59.9			20.4	15.0	10.4	14.3	8.3	14.4	12.5	17	10	23	61	56
68C00738	8-20	A3	S	cosl	5.9	32.4	61.7			21.9	10.5	10.8	13.1	7.7	14.0	16.1	16	10	20	61	46
68C00739	20-33	AC	S	cosl	5.5	32.7	61.8			21.0	11.7	12.1	13.4	7.7	13.8	14.8	15	9	25	62	55
68C00740	33-53	C1	S	cosl	4.7	34.8	60.5			22.3	12.5	12.2	14.1	7.7	14.1	12.4	7	5	52	75	67
68C00741	53-74	C2	S	sl	3.7	33.4	62.9			20.1	13.3	13.3	17.9	10.1	14.9	6.7	12	7	44	72	67
68C00742	74-89	C3	S	cosl	3.6	32.2	64.2	--	--	19.5	12.7	12.0	15.8	9.7	15.3	11.4	17	10	31	67	58
68C00743	89-99	C4	S														22	13	25
68C00744	99-100	R	S														23	14	30
68C00745	0-33	A	S														18	11	--

---

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
68C00735	5-0	O	S									1.056
68C00736	0-3	A1	S	0.23	0.32	0.105			102.9	37.0		1.056		0.14		7.47	4.68
68C00737	3-8	A2	S	0.68	0.70	0.007			38.6	28.6		1.056		0.05		8.51	6.09
68C00738	8-20	A3	S	0.68	0.70	0.008			37.7	20.0		1.056		0.10		5.88	3.39
68C00739	20-33	AC	S	0.72	0.73	0.003			40.4	18.8		1.056		0.12		5.91	3.42
68C00740	33-53	C1	S	0.76	0.76	--			40.7	20.1		1.086		0.10		6.87	4.28
68C00741	53-74	C2	S	0.71	0.73	0.006			41.0	20.5		1.086		0.09		9.38	5.54
68C00742	74-89	C3	S	0.74	0.75	0.003			39.6	19.2		1.086		0.11		9.36	5.33
68C00743	89-99	C4	S	0.94	0.98				46.3	22.2		1.086
68C00744	99-100	R	S	1.63	1.67				20.6	14.2		1.086
68C00745	0-33	A	S							25.8		1.086

*** Primary Characterization Data ***

Pedon ID: S68CA061002

( Placer, California )

Print Date: Nov 21 2024 12:06PM

Sampled As	:	Waca
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  68C0090

---

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

68C00737

3-8

A2

S

NP

NP

68C00739

20-33

AC

S

NP

NP

68C00740

33-53

C1

S

NP

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 - - - - -)
					6B1a			6A1a		6C2a				8J	6C9a	6G12	6V2	6D5b
68C00736	0-3	A1	S		0.682			19.18	28				1.88	1.18	0.85	1.46	0.22	3087.0
68C00737	3-8	A2	S		0.329			9.19	28	1.3			2.97	0.83	1.09	2.42	0.54	539.0
68C00738	8-20	A3	S		0.293			7.66	26				3.40	0.63	1.06	2.87	0.72	374.0
68C00739	20-33	AC	S		0.224			5.18	23	1.4
68C00740	33-53	C1	S					3.76		1.3			4.05	0.43	1.13	3.48	1.20	44.0
68C00741	53-74	C2	S					3.06					4.14	0.42	1.09	3.59	1.32	43.0
68C00742	74-89	C3	S					2.88
68C00743	89-99	C4	S					3.12
68C00745	0-33	A	S		0.352			9.07

*** Primary Characterization Data ***

Pedon ID: S68CA061002

( Placer, California )

Print Date: Nov 21 2024 12:06PM

Sampled As	:	Waca
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  68C0090

---

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	6P2a	6Q2a		6H2a	6G1e		5A3a	5A6a	5A3b	5G1	5C3	5C1
68C00736	0-3	A1	S	10.1	5.0	0.1	0.7	15.9	39.1	1.3		55.0	59.0	17.2	8	29	27
68C00737	3-8	A2	S	1.9	0.2	0.1	0.5	2.7	23.2	1.5		25.9	40.0	4.2	36	10	7
68C00738	8-20	A3	S	2.0	0.4	0.1	0.5	3.0	36.7	0.7		39.7	34.7	3.7	19	8	9
68C00739	20-33	AC	S	0.8	0.1	0.1	0.4	1.4	36.9	0.3		38.3	32.5	1.7	18	4	4
68C00740	33-53	C1	S	0.8	0.2	0.1	0.2	1.3	35.2	0.1		36.5	32.3	1.4	7	4	4
68C00741	53-74	C2	S	0.7	0.1	0.1	0.1	1.0	34.1	0.3		35.1	34.7	1.3	23	3	3
68C00742	74-89	C3	S	0.7	0.2	0.1	0.1	1.1	35.7	0.3		36.8	33.7	1.4	21	3	3
68C00743	89-99	C4	S	0.6	0.2	0.2	0.1		33.2	0.6			37.6
68C00744	99-100	R	S						27.2	0.9			27.9

---

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 - -)

%

68C00736

0-3

A1

S

tr

68C00737

3-8

A2

S

tr

68C00738

8-20

A3

S

tr

68C00739

20-33

AC

S

tr

68C00740

33-53

C1

S

tr

68C00741

53-74

C2

S

tr

68C00742

74-89

C3

S

tr

*** Primary Characterization Data ***

Pedon ID: S68CA061002

( Placer, California )

Print Date: Nov 21 2024 12:06PM

Sampled As	:	Waca
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  68C0090

---

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			4C1a1a1
68C00736	0-3	A1	S		4.7	5.3			9.5
68C00737	3-8	A2	S		4.9	5.4			11.2
68C00738	8-20	A3	S		4.9	5.5			11.3
68C00739	20-33	AC	S		5.0	5.5			10.9
68C00740	33-53	C1	S		5.1	5.5			11.0
68C00741	53-74	C2	S		5.0	5.5			11.1
68C00742	74-89	C3	S		5.0	5.4			10.7
68C00743	89-99	C4	S		4.9	5.4			10.6
68C00744	99-100	R	S		4.8	5.3			10.6
68C00745	0-33	A	S		4.9	5.3

---

Phosphorus				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-	-12-
					(- - - - - - - - - - - - - - - - - - - - - - - Phosphorus - - - - - - - - - - - - - - - - - - - - -)										KCl
				Melanic	NZ	Acid	Anion Exch Resin		Bray	Bray	Olsen	H2O	Citric	Mehlich	Extr
	Depth			Index		Oxal	Available	Capacity	1	2			Acid	III	NO3
Layer	(cm)	Horz	Prep		%	(- - - - - - - - - - - - - - - - - - - - - - - - - - - mg kg-1 - - - - - - - - - - - - - - - - - - - -)
					6S4	6S8a
68C00736	0-3	A1	S		59	930.0
68C00737	3-8	A2	S		75	761.0
68C00738	8-20	A3	S		85	738.0
68C00739	20-33	AC	S		78
68C00740	33-53	C1	S		90	709.0
68C00741	53-74	C2	S		95	845.0

*** Primary Characterization Data ***

Pedon ID: S68CA061002

( Placer, California )

Print Date: Nov 21 2024 12:06PM

Sampled As	:	Waca
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  68C0090

---

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

68C00737

3.0-8.0

A2

tcly

NX 6

68C00739

20.0-33.0

AC

tcly

NX 6

68C00740

33.0-53.0

C1

tcly

KH 1

FRACTION INTERPRETATION:
tcly - Total Clay <0.002 mm

MINERAL INTERPRETATION:
KH Halloysite	NX Non-Crystalline

RELATIVE PEAK SIZE:

5 Very Large

4 Large

3 Medium

2 Small

1 Very Small

6 No Peaks

*** Primary Characterization Data ***

Pedon ID: S68CA061002

( Placer, California )

Print Date: Nov 21 2024 12:06PM

Sampled As	:	Waca
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  68C0090

---

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

68C00736

0.0-3.0

A1

vfs

OT 68

GA 15

GS 8

FG 8

GC 1

68C00736

0.0-3.0

A1

fs

OT 77

GA 13

FG 7

GS 3

GC tr

68C00737

3.0-8.0

A2

csi

OT 72

GS 23

GA 3

GC 1

PO 1

FG tr

68C00737

3.0-8.0

A2

fs

OT 89

GS 9

GA 1

GC 1

FG tr

68C00738

8.0-20.0

A3

vfs

OT 74

GS 13

GA 7

FG 5

GC 1

68C00738

8.0-20.0

A3

fs

OT 89

GS 6

GA 2

GC 2

FG 1

68C00739

20.0-33.0

AC

vfs

OT 83

GS 13

GA 3

GC 1

FG tr

68C00739

20.0-33.0

AC

fs

OT 91

GS 3

FG 3

GA 2

GC 1

68C00740

33.0-53.0

C1

csi

OT 68

GS 31

GC 1

PO tr

68C00740

33.0-53.0

C1

fs

OT 82

GS 11

GA 4

FG 3

GC tr

68C00741

53.0-74.0

C2

csi

OT 73

GS 26

FG 1

GC tr

PO tr

68C00741

53.0-74.0

C2

fs

OT 91

GS 5

GA 3

FG 1

FRACTION INTERPRETATION:
csi - Coarse Silt 0.02-0.05 mm	vfs - Very Fine Sand 0.05-0.1 mm	fs - Fine Sand 0.1-0.25 mm

MINERAL INTERPRETATION:
FG Glass-coated Feldspar	GA Glass Aggregates	GC Glass-coated Grain	GS Glass	OT Other
PO Plant Opal