*** Primary Characterization Data ***

Pedon ID: 88MD001001

( Allegany, Maryland )

Print Date: Apr 28 2025 6:21PM

Sampled as on Mar 30, 1988:	Opequon ; Fine, mixed, mesic Typic Hapludalf
Revised to correlated on Jul 9, 2007:	Opequon ; Fine, mixed, semiactive, mesic Typic Hapludalfs

				United States Department of Agriculture
SSL	-	Project	CP88MD139   WEPP MARYLAND	Natural Resources Conservation Service
	-	Site ID	S1988MD001001   Lat: 39° 38' 26.00" north  Long: 78° 37' 47.99" west  MLRA: 147	National Soil Survey Center
	-	Pedon No.	88P0503	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
88P02581	Ap	Ap	0-20					CL
88P02582	BA	BA	20-28					SCL
88P02583	Bt1	Bt1	28-39					SIC
88P02584	Bt2	Bt2	39-56					C
88P02585	Bt3	Bt3	56-65					C
88P02586	BC1	BC1	65-76					SIC
88P02587	BC2	BC2	76-89					SIC
88P02588	BC3	BC3	89-96					C

---

Pedon Calculations
Calculation Name	Result	Units of Measure
CEC Activity, CEC7/Clay, Weighted Average	0.27	(NA)
Clay, carbonate free, Weighted Average	58	% wt
Weighted Particles, 0.1-75mm, 75 mm Base	5	% wt
Volume, >2mm, Weighted Average	1	% vol
Clay, total, Weighted Average	58	% wt
Weighted averages based on control section: 28-65 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	3A1a1a	3B1	3B1	3B1
88P02581	0-20	Ap	S	cl	31.1	31.2	37.7	15.3		22.8	8.4	5.9	10.7	9.6	7.7	3.8	3	4	6	41	13
88P02582	20-28	BA	S	scl	28.9	22.0	49.1	12.6		17.5	4.5	7.5	12.7	11.3	10.2	7.4	2	2	tr	44	4
88P02583	28-39	Bt1	S	sic	51.4	40.7	7.9	23.2		30.8	9.9	2.2	1.7	1.5	1.6	0.9	1	1	--	8	2
88P02584	39-56	Bt2	S	c	59.0	35.7	5.3	28.9		27.9	7.8	1.8	1.1	1.1	0.9	0.4	tr	tr	--	4	tr
88P02585	56-65	Bt3	S	c	63.8	30.6	5.6	33.6		22.6	8.0	2.0	1.2	1.0	1.0	0.4	tr	tr	--	4	tr
88P02586	65-76	BC1	S	sic	44.7	47.9	7.4	18.6		32.5	15.4	1.1	2.6	1.9	1.1	0.7	1	--	--	8	1
88P02587	76-89	BC2	S	sic	50.3	40.1	9.6	25.1		25.4	14.7	5.4	2.0	0.7	0.7	0.8	2	2	6	14	10
88P02588	89-96	BC3	S	c	54.2	35.8	10.0	29.1		20.9	14.9	4.2	1.9	1.2	1.4	1.3	2	3	--	11	5

*** Primary Characterization Data ***

Pedon ID: 88MD001001

( Allegany, Maryland )

Print Date: Apr 28 2025 6:21PM

Sampled As	:	Opequon		Fine, mixed, mesic Typic Hapludalf
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  88P0503

---

Water Dispersible PSDA				-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	-9-	-10-	-11-	-12-
				(- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Water Dispersible - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -)
				(- - - - - Total - - - - - -)			(- - Clay - - -)		(- - - - Silt - - - - -)		(- - - - - - - - - - - - Sand - - - - - - - - - - - -)
				Clay	Silt	Sand	F	CO3	F	C	VF	F	M	C	VC
				<	.002	.05	<	<	.002	.02	.05	.10	.25	.5	1
	Depth			.002	-.05	-2	.0002	.002	-.02	-.05	-.10	-.25	-.50	-1	-2
Layer	(cm)	Horz	Prep	(- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - % of <2mm - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -)
				3A1a6a	3A1a6a	3A1a6a			3A1a6a	3A1a6a	3A1a6a	3A1a6a	3A1a6a	3A1a6a	3A1a6a
88P02581	0-20	Ap	S	24.4	58.0	17.6			43.0	14.5	5.4	3.9	2.5	2.7	2.5

---

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	3C2a1a		3D1		4C1	3F1a1a	8D1	8D1
88P02581	0-20	Ap	S							14.2		1.010			28	0.41	0.46
88P02582	20-28	BA	S	1.30	1.40	0.024			25.3	15.2		1.011		0.13		0.49	0.53
88P02583	28-39	Bt1	S	1.48	1.62	0.030			25.6	18.6		1.018		0.10		0.27	0.36
88P02584	39-56	Bt2	S	1.47	1.61	0.031			27.1	21.4		1.021		0.08		0.27	0.36
88P02585	56-65	Bt3	S	1.49	1.64	0.032			28.1	22.6		1.020		0.08		0.26	0.35
88P02586	65-76	BC1	S	1.37	1.55	0.042			32.4	22.4		1.022		0.14		0.40	0.50
88P02587	76-89	BC2	S	1.32	1.48	0.036			31.7	21.2		1.024		0.13		0.39	0.42
88P02588	89-96	BC3	S							19.6		1.025				0.37	0.36

*** Primary Characterization Data ***

Pedon ID: 88MD001001

( Allegany, Maryland )

Print Date: Apr 28 2025 6:21PM

Sampled As	:	Opequon		Fine, mixed, mesic Typic Hapludalf
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  88P0503

---

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										3C1e1a
88P02581	0-20	Ap	S	38	12										22.0
88P02582	20-28	BA	S												23.2
88P02583	28-39	Bt1	S												24.7
88P02584	39-56	Bt2	S	49	25										27.0
88P02585	56-65	Bt3	S												28.1
88P02586	65-76	BC1	S												28.2
88P02587	76-89	BC2	S	51	27										27.4
88P02588	89-96	BC3	S												26.8

---

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 - - - - -)
				6A2d	6B3a			6A1c		6C2b	6G7a			8J	6C9a	6G12	6V2	6D5b
88P02581	0-20	Ap	S	1.40	0.160			1.42	9	2.7	0.3		0.28	0.03	0.29	0.14	0.03	299.8
88P02582	20-28	BA	S		0.171			1.45	9	2.9	0.3		0.25	0.03	0.27	0.12	0.02	283.6
88P02583	28-39	Bt1	S		0.070			0.41	6	3.8	0.3		0.31	0.04	0.34	0.14	0.03	167.5
88P02584	39-56	Bt2	S					0.25		4.5	0.4		0.39	0.04	0.44	0.17	0.05	281.2
88P02585	56-65	Bt3	S					0.20		4.7	0.4		0.45	0.04	0.48	0.20	0.05	316.6
88P02586	65-76	BC1	S					0.23		4.3	0.4		0.44	0.04	0.49	0.19	0.06	410.3
88P02587	76-89	BC2	S					0.23		4.2	0.4		0.41	0.04	0.44	0.19	0.05	429.5
88P02588	89-96	BC3	S					0.36		3.9	0.4		0.31	0.03	0.32	0.15	0.06	501.1

*** Primary Characterization Data ***

Pedon ID: 88MD001001

( Allegany, Maryland )

Print Date: Apr 28 2025 6:21PM

Sampled As	:	Opequon		Fine, mixed, mesic Typic Hapludalf
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  88P0503

---

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	6G9b		5A3a	5A8b	5A3b	5G1	5C3	5C1
88P02581	0-20	Ap	S	10.3	1.0	0.1	0.4	11.8	5.6			17.4	12.9			68	91
88P02582	20-28	BA	S	11.8	1.2	0.1	0.3	13.4	4.7			18.1	14.1			74	95
88P02583	28-39	Bt1	S	11.5	1.3	0.1	0.2	13.1	4.5			17.6	14.1			74	93
88P02584	39-56	Bt2	S	11.6	1.5	0.1	0.2	13.4	5.4			18.8	15.8			71	85
88P02585	56-65	Bt3	S	10.5	1.8	0.1	0.2	12.6	8.6	0.7		21.2	16.5	13.3	5	59	76
88P02586	65-76	BC1	S	11.1	2.2	0.1	0.2	13.6	8.2	1.0		21.8	18.0	14.6	7	62	76
88P02587	76-89	BC2	S	21.5*	2.2	0.1	0.2	24.0	4.6			28.6	19.4			84	100
88P02588	89-96	BC3	S	37.2*	2.5	0.1	0.2		2.0				20.2			95	100

^*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 - -)

%

88P02581

0-20

Ap

S

1

88P02582

20-28

BA

S

1

88P02583

28-39

Bt1

S

1

88P02584

39-56

Bt2

S

1

88P02585

56-65

Bt3

S

1

88P02586

65-76

BC1

S

1

88P02587

76-89

BC2

S

1

88P02588

89-96

BC3

S

tr

*** Primary Characterization Data ***

Pedon ID: 88MD001001

( Allegany, Maryland )

Print Date: Apr 28 2025 6:21PM

Sampled As	:	Opequon		Fine, mixed, mesic Typic Hapludalf
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  88P0503

---

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
				4C1a2a3	4C1a2a	4C1a2a				6E1g
88P02581	0-20	Ap	S	4.9	5.5	5.9
88P02582	20-28	BA	S	5.3	5.9	6.2
88P02583	28-39	Bt1	S	5.3	6.1	6.8
88P02584	39-56	Bt2	S	5.3	6.1	6.8
88P02585	56-65	Bt3	S	4.0	4.9	5.5
88P02586	65-76	BC1	S	3.9	4.8	5.5
88P02587	76-89	BC2	S	5.9	6.6	7.0
88P02588	89-96	BC3	S	6.8	7.4	7.9				2

*** Primary Characterization Data ***

Pedon ID: 88MD001001

( Allegany, Maryland )

Print Date: Apr 28 2025 6:21PM

Sampled As	:	Opequon		Fine, mixed, mesic Typic Hapludalf
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  88P0503

---

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

7C3

tion

Layer

(cm)

Horz

ion

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

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

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

mg g-1

88P02581

0.0-20.0

Ap

tcly

MI 3

KK 2

VR 2

QZ 2

GE 1

18

8.4

4.8

88P02583

28.0-39.0

Bt1

tcly

MI 4

KK 2

VR 2

GE 2

HE 1

21

10.6

4.6

88P02587

76.0-89.0

BC2

tcly

MI 4

VR 2

KK 2

GE 1

21

10.6

5.0

FRACTION INTERPRETATION:
tcly - Total Clay <0.002 mm

MINERAL INTERPRETATION:
GE Goethite	HE Hematite	KK Kaolinite	MI Mica	QZ Quartz
VR Vermiculite

RELATIVE PEAK SIZE:

5 Very Large

4 Large

3 Medium

2 Small

1 Very Small

6 No Peaks

*** Primary Characterization Data ***

Pedon ID: 88MD001001

( Allegany, Maryland )

Print Date: Apr 28 2025 6:21PM

Sampled As	:	Opequon		Fine, mixed, mesic Typic Hapludalf
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  88P0503

---

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

88P02581

0.0-20.0

Ap

vfs

21

BT 50

MS 24

QZ 12

OP 8

OT 4

FK 2

GE 1

PO tr

ZR tr

FE tr

88P02583

28.0-39.0

Bt1

vfs

95

QZ 86

OP 9

OT 2

FK 1

BT 1

CL tr

TM tr

GS tr

PO tr

ZR tr

MS tr

88P02587

76.0-89.0

BC2

vfs

91

RA 56

QZ 34

AR 6

BT 1

FK 1

OP 1

MS 1

TM tr

CL tr

FRACTION INTERPRETATION:
vfs - Very Fine Sand 0.05-0.1 mm

MINERAL INTERPRETATION:
AR Weatherable Aggregates	BT Biotite	CL Chlorite	FE Iron Oxides (Goethite	FK Potassium Feldspar
GE Goethite	GS Glass	MS Muscovite	OP Opaques	OT Other
PO Plant Opal	QZ Quartz	RA Resistant Aggregates	TM Tourmaline	ZR Zircon

*** Primary Characterization Data ***

Pedon ID: 88MD001001

( Allegany, Maryland )

Print Date: Apr 28 2025 6:21PM

Sampled As	:	Opequon		Fine, mixed, mesic Typic Hapludalf
USDA-NRCS-NSSC-Soil Survey Laboratory			;	Pedon No.  88P0503

---

Fine Earth Mineralogy (<2.0 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																	7D2	tion
Layer	(cm)	Horz	ion	( - - - - - - - - - - peak size - - - - - - - - - - )					(- - - - - - - - - % - - - - - - - - - -)				(- - - - - - - - - - - - - - - - - - - % - - - - - - - - - - - - - - - - - -)							mg g-1
88P02581	0.0-20.0	Ap	feth																	18.0

FRACTION INTERPRETATION:
feth - Fine Earth <2 mm