IDENTIFIERS

Current Taxon Name (Soil Name): Ridgway

OSD

Series Extent

User Site ID: S1993IL027005

User Pedon ID: S1993IL027005

Lab Information:

Certified Lab Pedon Description - no

Lab Source ID - SSL

Lab Pedon # - 94P0265

NCSS Pedon Lab Data NASIS Record ID - 66443

Print Date: 3/2/2025

LOCATION

Location In Web Soil Survey

AOI is roughly a square mile and pedon is marked in the center.

Location in SoilWeb

Location in Google Maps

Std. Latitude: 38.4944458

Std. Longitude: -89.5774994

Datum: WGS84

Township: 1N

Range: 4W

Section: 31

State: Illinois

County: IL027—Clinton

MLRA: 114—Southern Illinois and Indiana Thin Loess and Till Plain

Non-MLRA Soil Survey Area: IL027—Clinton County, Illinois

7.5 Minute USGS Quad: 38089-D5—Okawville, Illinois

PEDON

Describers Name: SJI, TE, RAL,

Current Taxonomic Class: Fine-silty, mixed, superactive, mesic Typic Hapludalfs

Current Taxon Kind: series

Pedon Record Orgin: Converted from PDP 3.x

Pedon #: 5

Correlated Information:

Soil Name - Ridgway

PSC - 7 to 57 cm.

Classificaton Date - 6/15/2007

Moisture Class - udic

Sampled As Information:

Soil Name - Ridgway

Taxonomic Class - Fine-silty, mixed, mesic Typic Hapludalf

Taxon Kind - series

Classificaton Date - 9/15/1993

Dynamic Soil Properties:

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Surface Fragments:

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 9/15/1993 (actual site observation date)

Air Photo ID: 72

Surface Cover Properties:

Pedoderm Loose Cover Indicator - no

Drained? - no

Bedded Soil? - no

Forest Plantation? - no

Pedon Horizon Lab Results - 1
Horizon	Top Depth	Bottom Depth	Sample ID	Data Collector	Total Clay	CaCO3 Clay	Total Silt	Fine Silt	Co. Silt	Total Sand	Total Sand Method	VC Sand	Co. Sand	Med. Sand	Fine Sand	VF Sand	VF Sand Method	Texture Class - Field Lab	Rubbed Fiber	Unrubbed Fiber	pH H2O
	cm	cm			%	%	%	%	%	%		%	%	%	%	%			%	%
2Btb1 2Btb2 2Btb3 2Btb4 2Btb5 2Btb6	157 192 235 254 286 310	— — — — — —	— — — — — —	— — — — — —	— — — — — —	— — — — — —	— — — — — —	— — — — — —	— — — — — —	— — — — — —	— — — — — —	— — — — — —	— — — — — —	— — — — — —	— — — — — —	5 5 10 10 5 10	— — — — — —	— — — — — —	— — — — — —	— — — — — —	— — — — — —

Pedon Horizon Lab Results - 2
Horizon	Top Depth	Bottom Depth	Sample ID	pH CaCl2	pH NaF	pH Ox	Delta pH	LL	PL	PI	Atter. Samp. Cond.	COLE	Pot. Acidity	Ca + Mg - Meh 2	K	Ca + Mg - Sat. Paste	KCl Extract. Acidity	Base Sat. - Meh 2	CEC-7	CEC-8.2
	cm	cm						%	%	%		cm/cm	meq/100g	cmol(+)/kg	cmol(+)/kg	mmol(+)/l	cmol(+)/kg	%	cmol(+)/kg	cmol(+)/kg
2Btb1 2Btb2 2Btb3 2Btb4 2Btb5 2Btb6	157 192 235 254 286 310	— — — — — —	— — — — — —	— — — — — —	— — — — — —	— — — — — —	— — — — — —	— — — — — —	— — — — — —		— — — — — —	— — — — — —	— — — — — —	— — — — — —	— — — — — —	— — — — — —	— — — — — —	— — — — — —	— — — — — —	— — — — — —

Pedon Horizon Lab Results - 3
Horizon	Top Depth	Bottom Depth	Sample ID	ECEC	Phosphate P	NO3-N	EC	EC Method	EC 1:5 by volume	CaCO3 Equiv.	Equiv. Gypsum	Na	SAR	Gypsum Req.	Humic Color	Fulvic Color	Humic + Fulvic Color	Al	PI	Pyro. Hue	PyrO. Value	Pyro. Chroma
	cm	cm		cmol(+)/kg	mg/kg	mg/kg	dS/m		dS/m	%	%	mmol(+)/l	%	L-pcu/g	L-pcu/g	L-pcu/g	%
2Btb1 2Btb2 2Btb3 2Btb4 2Btb5 2Btb6	157 192 235 254 286 310	— — — — — —	— — — — — —	— — — — — —	— — — — — —	— — — — — —	— — — — — —	— — — — — —	— — — — — —	— — — — — —	— — — — — —	— — — — — —	— — — — — —	— — — — — —	— — — — — —	— — — — — —	— — — — — —	— — — — — —	— — — — — —	— — — — — —	— — — — — —	— — — — — —

Setting and Climate
Slope	Slope Length USLE	Upslope Length	Elev.	Corr. Elev	Aspect	MAP	REAP	FFD	MAAT	MSAT	MWAT	MAST	MSST	MWST	MFFP	PE Index	Climate Station ID	Climate Station Name	Climate Station Type
%	m				degrees	mm	mm		C						mm
—	—	—	129	—		—	—	—	—	—	—	—	—	—	—	—	—	—	—

Ap—0 to 7 centimeters (0.0 to 2.8 inches); brown (10YR 4/3), light yellowish brown (10YR 6/4), dry; silty clay loam; 33 percent clay; moderate fine and medium angular blocky parts to weak medium granular structure; firm; 21.0 very fine and fine roots throughout; 2 percent fine spherical black (10YR 2/1) iron-manganese masses throughout; fragments; slightly acid, pH 6.4, lamotte-morgan; abrupt smooth boundary. Lab sample # 94P01622

Bt1—7 to 25 centimeters (2.8 to 9.8 inches); strong brown (7.5YR 5/6) silty clay loam; 32 percent clay; moderate medium prismatic parts to moderate fine and medium angular blocky structure; very firm; 3.0 very fine roots throughout; 60 percent distinct reddish brown (5YR 4/3), moist, clay films on faces of peds; 5 percent fine irregular black (10YR 2/1) iron-manganese masses between peds; fragments; slightly acid, pH 6.2, lamotte-morgan; clear smooth boundary. Lab sample # 94P01623

Bt2—25 to 60 centimeters (9.8 to 23.6 inches); yellowish brown (10YR 5/4) silty clay loam; 30 percent clay; moderate fine and medium prismatic parts to moderate fine and medium angular blocky structure; very firm; 3.0 very fine roots throughout; 5 percent distinct pale brown (10YR 6/3), moist, silt coats in root channels and/or pores and 70 percent distinct reddish brown (5YR 4/3), moist, clay films on faces of peds; 8 percent fine and medium irregular black (10YR 2/1) iron-manganese masses between peds; fragments; slightly acid, pH 6.2, lamotte-morgan; clear smooth boundary. Lab sample # 94P01624

Bt3—60 to 82 centimeters (23.6 to 32.3 inches); yellowish brown (10YR 5/4) silty clay loam; 29 percent clay; moderate fine and medium prismatic parts to moderate fine and medium angular blocky structure; friable; 3.0 very fine roots throughout; 2 percent distinct light gray (10YR 7/2), dry, silt coats on faces of peds and 60 percent distinct reddish brown (5YR 4/3), moist, clay films on faces of peds; 5 percent medium irregular black (10YR 2/1) iron-manganese masses between peds; fragments; strongly acid, pH 5.5, lamotte-morgan; clear smooth boundary. Lab sample # 94P01625

Bt4—82 to 105 centimeters (32.3 to 41.3 inches); yellowish brown (10YR 5/6) silty clay loam; 27 percent clay; moderate medium and coarse prismatic, and moderate fine and medium angular blocky structure; friable; 3.0 very fine roots throughout; 2 percent distinct light gray (10YR 7/2), dry, silt coats on faces of peds and 51 percent distinct reddish brown (5YR 4/3), moist, clay films on faces of peds; 5 percent medium irregular black (10YR 2/1) iron-manganese masses; fragments; strongly acid, pH 5.5, lamotte-morgan; abrupt smooth boundary. Lab sample # 94P01626

2Bt5—105 to 157 centimeters (41.3 to 61.8 inches); strong brown (7.5YR 5/6) silty clay loam; 27 percent clay; weak medium and coarse prismatic, and weak fine and medium subangular blocky structure; friable; 0.5 very fine roots throughout; 5 percent distinct light gray (10YR 7/2), dry, silt coats on faces of peds and in pores and 30 percent distinct reddish brown (5YR 4/3), moist, clay films on faces of peds and in pores; 3 percent fine and medium irregular black (10YR 2/1) iron-manganese masses; fragments; moderately acid, pH 6.0, lamotte-morgan; abrupt smooth boundary. Lab sample # 94P01627

2Btb1—157 to 192 centimeters (61.8 to 75.6 inches); strong brown (7.5YR 5/6) silt loam; 24 percent clay; moderate thick platy parts to moderate fine and medium angular blocky structure; friable; 0.5 very fine roots throughout; 5 percent distinct light gray (10YR 7/2), dry, silt coats on faces of peds and in pores and 40 percent distinct reddish brown (5YR 4/3), moist, clay films on faces of peds and in pores; 1 percent fine and medium irregular black (10YR 2/1) iron-manganese masses; fragments; moderately acid, pH 6.0, lamotte-morgan; clear smooth boundary. Lab sample # 94P01628

2Btb2—192 to 235 centimeters (75.6 to 92.5 inches); strong brown (7.5YR 5/6) silt loam; 25 percent clay; moderate coarse prismatic parts to moderate medium and coarse angular blocky structure; friable; 0.5 very fine roots throughout; 10 percent distinct light gray (10YR 7/2), dry, silt coats on faces of peds and in pores and 40 percent distinct reddish brown (5YR 4/3), moist, clay films on faces of peds and in pores; 3 percent fine and medium irregular black (10YR 2/1) iron-manganese masses; fragments; moderately acid, pH 6.0, lamotte-morgan; clear smooth boundary. Lab sample # 94P01629

2Btb3—235 to 254 centimeters (92.5 to 100.0 inches); strong brown (7.5YR 5/6) silty clay loam; 28 percent clay; 10 percent brown (7.5YR 5/4) medium distinct mottles; moderate medium and coarse prismatic parts to moderate medium subangular blocky structure; friable; 10 percent distinct light gray (10YR 7/2), dry, silt coats on faces of peds and in pores and 26 percent distinct reddish brown (5YR 4/3), moist, clay films on faces of peds and in pores; 8 percent fine and medium irregular black (10YR 2/1) iron-manganese masses; fragments; slightly acid, pH 6.2, lamotte-morgan; clear smooth boundary. Lab sample # 94P01630

2Btb4—254 to 286 centimeters (100.0 to 112.6 inches); strong brown (7.5YR 5/6) silty clay loam; 27 percent clay; 10 percent brown (7.5YR 5/4) medium distinct mottles; moderate medium and coarse prismatic parts to moderate medium subangular blocky structure; friable; 10 percent distinct light gray (10YR 7/2), dry, silt coats on faces of peds and in pores and 26 percent distinct reddish brown (5YR 4/3), moist, clay films on faces of peds and in pores; 8 percent fine and medium irregular black (10YR 2/1) iron-manganese masses; fragments; slightly acid, pH 6.2, lamotte-morgan; gradual smooth boundary. Lab sample # 94P01631

2Btb5—286 to 310 centimeters (112.6 to 122.0 inches); strong brown (7.5YR 5/6) silty clay loam; 31 percent clay; 10 percent brown (7.5YR 5/4) medium distinct and 10 percent pinkish gray (7.5YR 6/2) medium distinct mottles; moderate medium and coarse prismatic structure; friable; 5 percent distinct light gray (10YR 7/2), dry, silt coats on faces of peds and in pores and 10 percent distinct reddish brown (5YR 4/3), moist, clay films on faces of peds and in pores; 8 percent fine and medium irregular black (10YR 2/1) iron-manganese masses; fragments; slightly acid, pH 6.2, lamotte-morgan; clear smooth boundary. Lab sample # 94P01632

2Btb6—310 to 340 centimeters (122.0 to 133.9 inches); strong brown (7.5YR 5/6) silty clay loam; 29 percent clay; 10 percent pinkish gray (7.5YR 6/2) coarse distinct mottles; moderate medium and coarse prismatic structure; friable; 5 percent distinct reddish brown (5YR 4/3), moist, clay films on faces of peds and in pores and 5 percent distinct light gray (10YR 7/2), dry, silt coats on faces of peds and in pores; 3 percent fine and medium irregular black (10YR 2/1) iron-manganese masses and 5 percent coarse irregular black (10YR 2/1) iron-manganese masses between peds; fragments; slightly acid, pH 6.2, lamotte-morgan; abrupt smooth boundary. Lab sample # 94P01633

3Btb7—340 to 360 centimeters (133.9 to 141.7 inches); strong brown (7.5YR 5/6) clay loam; 25 percent sand; 33 percent clay; 25 percent pinkish gray (7.5YR 6/2) medium distinct mottles; friable; 5 percent distinct reddish brown (5YR 4/3), moist, clay films on faces of peds and in pores and 5 percent distinct light gray (10YR 7/2), dry, silt coats on faces of peds and in pores; 15 percent fine and medium irregular black (10YR 2/1) iron-manganese masses; fragments; slightly acid, pH 6.2, lamotte-morgan; clear smooth boundary. Lab sample # 94P01634

3Btb8—360 to 430 centimeters (141.7 to 169.3 inches); strong brown (7.5YR 4/6) clay loam; 25 percent sand; 34 percent clay; 1 percent light gray (10YR 7/1) coarse prominent and 15 percent pinkish gray (7.5YR 6/2) medium distinct mottles; very friable; 3 percent distinct gray (10YR 5/1), moist, clay films on faces of peds and in pores and 5 percent distinct reddish brown (5YR 4/3), moist, clay films on faces of peds and in pores; 15 percent coarse irregular black (10YR 2/1) iron-manganese concretions between peds and 25 percent fine and medium irregular black (10YR 2/1) iron-manganese masses between peds; fragments; slightly acid, pH 6.3, lamotte-morgan. Lab sample # 94P01635