*** Primary Characterization Data ***

Pedon ID: S1972CA013004

( Contra Costa, California )

Print Date: Nov 23 2024 10:16PM

Sampled as on Apr 11, 1972:	Millsholm
Revised to correlated:	unnamed ; Fine-loamy, mixed, thermic Lithic Haploxerolls

				United States Department of Agriculture
SSL	-	Project	NL71CA001   CONTRA COSTA ARE	Natural Resources Conservation Service
	-	Site ID	S1972CA013004	National Soil Survey Center
	-	Pedon No.	72C0010	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
72C00065	A1	A11	0-13	7265			CL	CL
72C00066	A2	A12	13-23	7266			CL	CL
72C00067	B	B2	23-44	7267			CL	L
72C00068	C1	C 1	44-69	7268				FSL
72C00069	C2	C 2	69-117	7269				FSL

---

Pedon Calculations
Calculation Name	Result	Units of Measure
CEC Activity, CEC7/Clay, Weighted Average	1.69	(NA)
Clay, carbonate free, Weighted Average	17	% wt
Volume, >2mm, Weighted Average	1	% vol
Clay, total, Weighted Average	17	% wt
LE, Whole Soil, Summed to 1m	3	cm/m
Weighted averages based on control section: 25-44 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
72C00065	0-13	A1	S														tr	--	--	--	tr
72C00065	0-13	A1	GP	cl	29.2	39.0	31.8			20.7	18.3	13.9	13.4	2.7	1.3	0.5
72C00066	13-23	A2	S														1	--	--	--	1
72C00066	13-23	A2	GP	cl	30.5	37.4	32.1			20.7	16.7	16.0	12.8	2.6	0.6	0.1
72C00067	23-44	B	S														1	--	--	--	1
72C00067	23-44	B	GP	l	17.4	30.8	51.8			16.2	14.6	18.5	28.0	4.8	0.5	--
72C00068	44-69	C1	S														tr	--	--	--	tr
72C00068	44-69	C1	GP	fsl	11.9	27.6	60.5			13.9	13.7	22.0	33.0	5.2	0.3	--
72C00069	69-117	C2	S														--	1	29	--	30
72C00069	69-117	C2	GP	fsl	9.1	27.1	63.8			12.5	14.6	19.5	34.8	8.9	0.6	--

*** Primary Characterization Data ***

Pedon ID: S1972CA013004

( Contra Costa, California )

Print Date: Nov 23 2024 10:16PM

Sampled As	:	Millsholm
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  72C0010

---

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	%
				4A1d	4A1h			4B1c	4B1c	3C2a1a		3D1		4C1		8D1	8D1
72C00065	0-13	A1	S	1.40	1.61	0.048		26.9	24.7					0.10		1.28	0.61
72C00065	0-13	A1	GP							17.9		1.055
72C00066	13-23	A2	S	1.45	1.69	0.052		26.2	23.7					0.15		1.09	0.45
72C00066	13-23	A2	GP							13.6		1.055
72C00067	23-44	B	S	1.52	1.77	0.052		23.3	20.5					0.15		1.69	0.59
72C00067	23-44	B	GP							10.3		1.055
72C00068	44-69	C1	S	1.92	2.08	0.027		14.4	13.2					0.09		2.16	0.70
72C00068	44-69	C1	GP							8.3		1.055
72C00069	69-117	C2	S	1.99	2.13	0.017		12.9	12.4					0.07		2.51	0.85
72C00069	69-117	C2	GP							7.7		1.055

---

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

72C00065

0-13

A1

GP

48.118

12

72C00067

23-44

B

GP

28.85497

8

72C00068

44-69

C1

GP

24.92496

3

72C00069

69-117

C2

GP

NP

NP

*** Primary Characterization Data ***

Pedon ID: S1972CA013004

( Contra Costa, California )

Print Date: Nov 23 2024 10:16PM

Sampled As	:	Millsholm
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  72C0010

---

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 - - - - -)

6B3a

6A1c

72C00065

0-13

A1

GP

0.486

5.67

12

72C00066

13-23

A2

GP

0.130

1.26

10

72C00067

23-44

B

GP

0.055

0.42

8

72C00068

44-69

C1

GP

0.17

72C00069

69-117

C2

GP

0.11

---

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
72C00065	0-13	A1	GP	18.8	8.5	0.4	3.0	30.7	8.5			39.2	37.4			78	82
72C00066	13-23	A2	GP	15.9	9.7	0.3	1.4	27.3	6.8			34.1	33.2			80	82
72C00067	23-44	B	GP	14.9	9.4	0.3	0.7	25.3	4.0			29.3	29.4			86	86
72C00068	44-69	C1	GP	14.1	8.6	0.3	0.3	23.3	2.7			26.0	25.7			90	91
72C00069	69-117	C2	GP	15.2	6.3	0.2	0.2	21.9	1.3			23.2	22.8			94	96

---

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 - -)

%

72C00065

0-13

A1

GP

1

72C00066

13-23

A2

GP

1

72C00067

23-44

B

GP

1

72C00068

44-69

C1

GP

1

72C00069

69-117

C2

GP

1

*** Primary Characterization Data ***

Pedon ID: S1972CA013004

( Contra Costa, California )

Print Date: Nov 23 2024 10:16PM

Sampled As	:	Millsholm
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  72C0010

---

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

72C00065

0-13

A1

GP

5.7

6.0

72C00066

13-23

A2

GP

5.2

5.5

72C00067

23-44

B

GP

5.4

5.9

72C00068

44-69

C1

GP

5.6

6.1

72C00069

69-117

C2

GP

6.8

7.2

---

Miscellaneous Data

-1-

-2-

-3-

-4-

-5-

-6-

-7-

-8-

-9-

-10-

-11-

-12-

-13-

-14-

(- Sat Paste Ex. -)

(- Sand -)

( Water Content )

Bulk

(- - - - Extractable Bases - - - -)

(- - - CEC8 - - -)

CO3+

(- - - pH - - -)

M+C+VC

Moist Sieved

Density

Depth

Ca

Mg

Na

K

NaOAC

BaCl2

Ca+Mg

HCO3

CaCl2

H2O

.25-2

100 kPa

200 kPa

10 kPa

Layer

(cm)

Horz

Prep

(- - - - - - - - - - - - - - - cmol(+)kg-1 - - - - - - - - - - - - - -)

mmol(+)L-1

mmol(-)L-1

1:10

1:10

(- - - - - % of <2mm - - - - -)

g cm-3

NK

72C00065

0-13

A1

GP

6.1

72C00066

13-23

A2

GP

7.2

*** Primary Characterization Data ***

Pedon ID: S1972CA013004

( Contra Costa, California )

Print Date: Nov 23 2024 10:16PM

Sampled As	:	Millsholm
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  72C0010

---

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

tion

Layer

(cm)

Horz

ion

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

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

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

mg g-1

72C00065

0.0-13.0

A1

tcly

MT 3

MI 2

72C00067

23.0-44.0

B

tcly

MT 3

72C00068

44.0-69.0

C1

tcly

MT 3

FRACTION INTERPRETATION:
tcly - Total Clay <0.002 mm

MINERAL INTERPRETATION:
MI Mica	MT Montmorillonite

RELATIVE PEAK SIZE:

5 Very Large

4 Large

3 Medium

2 Small

1 Very Small

6 No Peaks