IDENTIFIERS

Current Taxon Name (Soil Name): Clinton

OSD

Series Extent

User Site ID: S1995IA107001

User Pedon ID: S1995IA107001

Lab Information:

Certified Lab Pedon Description - yes

Lab Source ID - SSL

Lab Pedon # - 95P0466

NCSS Pedon Lab Data NASIS Record ID - 67484

Print Date: 11/21/2024

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: 41.2233611

Std. Longitude: -92.2765417

Datum: WGS84

Township: 74N

Range: 12W

Section: 7

PLSS Details: 1200 feet north and 70 feet west of the southeast corner

State: Iowa

County: IA107—Keokuk

MLRA: 108—Illinois and Iowa Deep Loess and Drift

Regional Office: NC—North Central

MLRA Soil Survey Area: NC-WAV—Waverly, Iowa

Non-MLRA Soil Survey Area: IA107—Keokuk County, Iowa

7.5 Minute USGS Quad: 41092-B3—Hedrick, Iowa

PEDON

Describers Name: JAL, ROD, and SJE

Current Taxonomic Class: Fine, smectitic, mesic Typic Hapludalfs

Current Taxon Kind: series

Pedon Type: OSD pedon

Pedon Purpose: laboratory sampling site

Pedon Record Orgin: NASIS

Pedon #: 1

Correlated Information:

Soil Name - Clinton (flagged as OSD)

PSC - 38 to 88 cm.

Classificaton Date - 12/9/2014

Soil Taxonomic Edition - twelfth edition

Moisture Subclass - typic

Sampled As Information:

Soil Name - Clinton

Taxonomic Class - Montmorillonitic Typic Hapludalfs

PSC - 38 to 88 cm.

Classificaton Date - 9/7/1994

Moisture Class - udic

Dynamic Soil Properties:

Erosion Class - 1

Pedoderm Loose Cover Indicator - no

Hydric: no

Certification Status: certified

QC Status: level 1

SITE

Parent Material: loess

Landscape: dissected till plain

Landform: interfluve

Slope Complexity: simple

Slope Shape Across: convex

Slope Shape Down: convex

Runoff: medium

Drainage Class: moderately well

Surface Fragments: 0.00 percent

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 9/7/1994 (actual site observation date)

Air Photo ID: 75

Surface Cover Properties:

Site Obs. Cover Kind 1 - tree cover

Site Obs. Cover Kind 2 - intermixed conifers and hardwoods

Pedoderm Loose Cover Indicator - no

Drained? - no

Bedded Soil? - no

Forest Plantation? - no

Site Erosion Accelerated: water erosion

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			%	%	%	%	%	%		%	%	%	%	%			%	%
A A E1 E1 E2 E2 E3 E3 Bt1 Bt1 Bt2 Bt2 Bt3 Bt3 Bt4 Bt4 Bt5 BC C	0 0 5 5 13 13 25 25 38 38 51 51 69 69 91 91 119 147 183	5 5 15 15 25 25 38 38 51 51 69 69 91 91 119 119 147 183 244	57519 RR1368 57521 RR1369 57522 RR1370 57523 RR1371 57524 RR1372 57525 RR1373 57526 RR1374 RR1375 57527 57528 57529 57530	Iowa State University Iowa State University Iowa State University Iowa State University Iowa State University Iowa State University Iowa State University Iowa State University Iowa State University Iowa State University Iowa State University Iowa State University Iowa State University Iowa State University Iowa State University Iowa State University Iowa State University Iowa State University Iowa State University	4.8 17.2 17.2 17.1 15 14.8 20.8 18.6 27.5 25.1 35 33.3 38.2 36.3 35.8 39.7 34.4 33.1 26.4	— — — — — — — — — — — — — — — — — — —	92.2 79.9 79.7 80.4 82 82.8 74.8 79.1 68.9 72.9 61.8 65.1 59.7 62.2 62.8 58 62 63.5 70.5	54.7 44.3 43.6 44.7 45.1 46.4 41.3 44.1 39 42.3 31.8 38.3 31.3 35.1 35.5 32.1 35 35.1 35.5	37.5 35.6 36.1 35.7 36.9 36.4 33.5 35 29.9 30.6 30 26.8 28.4 27.1 27.3 25.9 27 28.4 35	3 2.9 3.1 2.5 3 2.4 4.4 2.3 3.6 2 3.2 1.6 2.1 1.5 1.4 2.3 3.6 3.4 3.1	— — — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — — —	6.8 6.8 6.7 6.7 6.8 6.8 6.3 6.3 5.2 5.2 5 5 4.9 4.9 4.9 4.9 5 5.2 5.6

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
A A E1 E1 E2 E2 E3 E3 Bt1 Bt1 Bt2 Bt2 Bt3 Bt3 Bt4 Bt4 Bt5 BC C	0 0 5 5 13 13 25 25 38 38 51 51 69 69 91 91 119 147 183	5 5 15 15 25 25 38 38 51 51 69 69 91 91 119 119 147 183 244	57519 RR1368 57521 RR1369 57522 RR1370 57523 RR1371 57524 RR1372 57525 RR1373 57526 RR1374 RR1375 57527 57528 57529 57530	— — — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — — —		— — — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — — —

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	%
A A E1 E1 E2 E2 E3 E3 Bt1 Bt1 Bt2 Bt2 Bt3 Bt3 Bt4 Bt4 Bt5 BC C	0 0 5 5 13 13 25 25 38 38 51 51 69 69 91 91 119 147 183	5 5 15 15 25 25 38 38 51 51 69 69 91 91 119 119 147 183 244	57519 RR1368 57521 RR1369 57522 RR1370 57523 RR1371 57524 RR1372 57525 RR1373 57526 RR1374 RR1375 57527 57528 57529 57530	— — — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — — —

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
ochric epipedon albic horizon argillic horizon	0—38 5—38 38—183	—38— —33— —145—

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
3	—	—	240	—	180	—	—	—	—	—	—	—	—	—	—	—	—	—	—

A—0 to 5 centimeters (0.0 to 2.0 inches); very dark gray (10YR 3/1), gray (10YR 5/1), dry; silt loam; 3 percent sand; 24 percent clay; moderate very fine granular structure; friable; 21.0 fine and medium roots; fragments; neutral, pH 6.9, hellige-truog; abrupt smooth boundary. Lab sample # 95P03485

E1—5 to 13 centimeters (2.0 to 5.1 inches); dark grayish brown (10YR 4/2), light brownish gray (10YR 6/2), dry; silt loam; 3 percent sand; 24 percent clay; moderate thin platy structure; friable; 21.0 fine to coarse roots; 0.5 fine tubular pores; 1 percent faint very dark gray (10YR 3/1) organic stains on faces of peds and 1 percent distinct dark yellowish brown (10YR 4/4) organic stains in root channels and/or pores; fragments; slightly acid, pH 6.3, hellige-truog; clear smooth boundary. Lab sample # 95P03486

E2—13 to 25 centimeters (5.1 to 9.8 inches); brown (10YR 4/3), light gray (10YR 7/1), dry; silt loam; 3 percent sand; 22 percent clay; weak medium subangular blocky parts to moderate thin platy structure; friable; 21.0 fine to coarse roots; 21.0 fine tubular pores; 1 percent distinct very dark gray (10YR 3/1) organic stains on faces of peds; 1 percent fine irregular iron-manganese masses; fragments; slightly acid, pH 6.3, hellige-truog; clear smooth boundary. Lab sample # 95P03487

E3—25 to 38 centimeters (9.8 to 15.0 inches); brown (10YR 4/3), light gray (10YR 7/1), dry; silt loam; 3 percent sand; 24 percent clay; weak fine subangular blocky structure; friable; 21.0 fine to coarse roots; 3.0 fine tubular pores; 30 percent distinct grayish brown (10YR 5/2) silt coats on faces of peds; 1 percent fine irregular iron-manganese masses; fragments; moderately acid, pH 5.8, hellige-truog; clear smooth boundary. Lab sample # 95P03488

Bt1—38 to 51 centimeters (15.0 to 20.1 inches); dark yellowish brown (10YR 4/4) silty clay loam; 3 percent sand; 34 percent clay; strong fine subangular blocky structure; friable; 0.5 fine roots; 0.5 fine tubular pores; 10 percent distinct grayish brown (10YR 5/2) silt coats in root channels and/or pores and 30 percent distinct brown (10YR 4/3) clay films on faces of peds; 1 percent fine irregular iron-manganese masses; fragments; very strongly acid, pH 4.8, hellige-truog; gradual smooth boundary. Lab sample # 95P03489

Bt2—51 to 69 centimeters (20.1 to 27.2 inches); dark yellowish brown (10YR 4/4) silty clay loam; 3 percent sand; 38 percent clay; strong fine subangular blocky structure; firm; 0.5 fine roots; 0.5 fine tubular pores; 10 percent distinct grayish brown (10YR 5/2) silt coats in root channels and/or pores and 30 percent distinct brown (10YR 4/3) clay films on faces of peds; 1 percent fine irregular iron-manganese masses; fragments; very strongly acid, pH 4.8, hellige-truog; gradual smooth boundary. Lab sample # 95P03490

Bt3—69 to 91 centimeters (27.2 to 35.8 inches); brown (10YR 5/3) silty clay; 3 percent sand; 39 percent clay; weak medium prismatic parts to strong medium subangular blocky structure; firm; 0.5 fine roots; 0.5 fine tubular pores; 10 percent distinct grayish brown (10YR 5/2) silt coats on horizontal faces of peds and 30 percent distinct brown (10YR 4/3) clay films on faces of peds; 1 percent fine irregular iron-manganese masses; fragments; very strongly acid, pH 4.8, hellige-truog; diffuse smooth boundary. Lab sample # 95P03491

Bt4—91 to 119 centimeters (35.8 to 46.9 inches); brown (10YR 5/3) silty clay loam; 3 percent sand; 36 percent clay; 1 percent grayish brown (2.5Y 5/2) fine distinct and 1 percent strong brown (7.5YR 5/6) fine prominent mottles; weak medium prismatic parts to strong medium angular blocky structure; friable; 0.5 fine roots; 0.5 fine tubular pores; 1 percent distinct grayish brown (10YR 5/2) silt coats on vertical faces of peds and 30 percent distinct brown (10YR 4/3) clay films on faces of peds; 1 percent fine irregular iron-manganese masses; fragments; very strongly acid, pH 4.8, hellige-truog; diffuse smooth boundary. Lab sample # 95P03492

Bt5—119 to 147 centimeters (46.9 to 57.9 inches); yellowish brown (10YR 5/4) silty clay loam; 3 percent sand; 36 percent clay; 1 percent olive gray (5Y 5/2) fine distinct and 1 percent strong brown (7.5YR 5/6) fine distinct mottles; weak medium prismatic parts to moderate medium subangular blocky structure; friable; 0.5 fine roots; 21.0 fine tubular pores; 10 percent distinct brown (10YR 4/3) clay films on faces of peds; 1 percent fine irregular iron-manganese masses; fragments; moderately acid, pH 5.8, hellige-truog; diffuse smooth boundary. Lab sample # 95P03493

BC—147 to 183 centimeters (57.9 to 72.0 inches); yellowish brown (10YR 5/4) silty clay loam; 3 percent sand; 33 percent clay; 1 percent olive gray (5Y 5/2) fine distinct and 1 percent strong brown (7.5YR 5/6) fine distinct mottles; weak medium prismatic structure; friable; 0.5 fine roots; 21.0 fine tubular pores; 10 percent distinct brown (10YR 4/3) clay films on faces of peds; 1 percent fine irregular iron-manganese masses; fragments; moderately acid, pH 5.8, hellige-truog; diffuse smooth boundary. Lab sample # 95P03494

C—183 to 244 centimeters (72.0 to 96.1 inches); yellowish brown (10YR 5/4) silty clay loam; 3 percent sand; 30 percent clay; 1 percent olive gray (5Y 5/2) fine distinct and 1 percent yellowish brown (10YR 5/8) fine distinct mottles; massive; friable; 0.5 fine roots; 21.0 fine and medium tubular pores; 1 percent fine irregular iron-manganese masses; fragments; moderately acid, pH 5.8, hellige-truog. Lab sample # 95P03495