Soil Data Explorer - IREDELL

Official Series Description

Lab Data Summary

Aggregate lab data for the IREDELL soil series. This aggregation is based on all pedons with a current taxon name of IREDELL, and applied along 1-cm thick depth slices. Solid lines are the slice-wise median, bounded on either side by the interval defined by the slice-wise 5th and 95th percentiles. The median is the value that splits the data in half. Five percent of the data are less than the 5th percentile, and five percent of the data are greater than the 95th percentile. Values along the right hand side y-axis describe the proportion of pedon data that contribute to aggregate values at this depth. For example, a value of "90%" at 25cm means that 90% of the pedons correlated to IREDELL were used in the calculation. Source: KSSL snapshot (updated 2020-03-13). Methods used to assemble the KSSL snapshot used by SoilWeb / SDE

Pedons used in the lab summary:

MLRA	Lab ID	Pedon ID	Taxonname	CI	NSSL / NASIS Reports	Link To SoilWeb GMap
133A	VPI0254	V1984-VA081-254	Iredell	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	36.5784035,-77.5986328
133A	VPI0255	V1984-VA081-255	Iredell	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	36.6119347,-77.5819473
136	84P0473	84GA159004	Iredell	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	33.2136116,-83.7530594
136	85P0772	85SC023001	Iredell	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	34.7874985,-81.1680527
136	85P0773	85SC023002	Iredell	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	34.7833328,-81.1686096
136	40A1298	S1969SC023001	IREDELL	7	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	34.6948395,-81.1950989
136	40A1302	S1969VA109002	IREDELL	6	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	38.0500488,-78.1663818
136	VPI0253	V1984-VA081-253	Iredell	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	36.7385178,-77.5944366
136	VPI0256	V1984-VA081-256	Iredell	2	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	36.5468292,-77.7060623
136	VPI0257	V1984-VA081-257	Iredell	3	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	36.6257095,-77.7112732
n/a	84P0377	84GA159001	Iredell	5	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a
n/a	84P0702	84NC063007	IREDELL	6	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a
n/a	84P0706	84NC063014	IREDELL	6	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the IREDELL soil series. Monthly precipitation (PPT) and potential evapotranspiration (PET) have been estimated from the 50th percentile of gridded values (PRISM 1981-2010) overlapping with the extent of SSURGO map units containing each series as a major component. Monthly PET values were estimated using the method of Thornthwaite (1948). These (and other) climatic parameters are calculated with each SSURGO refresh and provided by the fetchOSD function of the soilDB package. Representative water storage values (“AWC” in the figures) were derived from SSURGO by taking the 50th percentile of profile-total water storage (sum[awc_r * horizon thickness]) for each soil series. Note that this representation of “water storage” is based on the average ability of most plants to extract soil water between 15 bar (“permanent wilting point”) and 1/3 bar (“field capacity”) matric potential. Soil moisture state can be roughly interpreted as “dry” when storage is depleted, “moist” when storage is between 0mm and AWC, and “wet” when there is a surplus. Clearly there are a lot of assumptions baked into this kind of monthly water balance. This is still a work in progress.

Sibling Summary

Siblings are those soil series that occur together in map units, in this case with the IREDELL series. Sketches are arranged according to their subgroup-level taxonomic structure. Source: SSURGO snapshot (updated 2024-02-21), parsed OSD records (updated 2023-10-02) and snapshot of SC database (updated 2023-10-02).

Select annual climate data summaries for the IREDELL series and siblings. Series are sorted according to hierarchical clustering of median values. Source: SSURGO map unit geometry and 1981-2010, 800m PRISM data (updated 2023-10-09).

Geomorphic description summaries for the IREDELL series and siblings. Series are sorted according to hierarchical clustering of proportions and relative hydrologic position within an idealized landform (e.g. top to bottom). Most soil series (SSURGO components) are associated with a hillslope position and one or more landform-specific positions: hills, mountain slopes, terraces, and/or flats. Proportions can be interpreted as an aggregate representation of geomorphic membership. The values printed to the left (number of component records) and right (Shannon entropy) of stacked bars can be used to judge the reliability of trends. Small Shannon entropy values suggest relatively consistent geomorphic association, while larger values suggest lack thereof. Source: SSURGO component records (updated 2023-10-04).

There are insufficient data to create the 3D mountains figure.

Competing Series

Soil series competing with IREDELL share the same family level classification in Soil Taxonomy. Source: parsed OSD records (updated 2023-10-02) and snapshot of the SC database (updated 2023-10-02).

Select annual climate data summaries for the IREDELL series and competing. Series are sorted according to hierarchical clustering of median values. Source: SSURGO map unit geometry and 1981-2010, 800m PRISM data (updated 2023-10-09).

Geomorphic description summaries for the IREDELL series and competing. Series are sorted according to hierarchical clustering of proportions and relative hydrologic position within an idealized landform (e.g. top to bottom). Proportions can be interpreted as an aggregate representation of geomorphic membership. Most soil series (SSURGO components) are associated with a hillslope position and one or more landform-specific positions: hills, mountain slopes, terraces, and/or flats. The values printed to the left (number of component records) and right (Shannon entropy) of stacked bars can be used to judge the reliability of trends. Shannon entropy values close to 0 represent soil series with relatively consistent geomorphic association, while values close to 1 suggest lack thereof. Source: SSURGO component records (updated 2023-10-04).

There are insufficient data to create the 3D mountains figure.

There are insufficient data to create the 3D terrace figure.

There are insufficient data to create the 3D flats position figure.

Soil series sharing subgroup-level classification with IREDELL, arranged according to family differentiae. Hovering over a series name will print full classification and a small sketch from the OSD. Source: snapshot of SC database (updated 2023-10-02).

Block Diagrams

Click a link below to display the diagram. Note that these diagrams may be from multiple survey areas.

1. SC-2012-03-14-15 | Cherokee County - July 1962

   Relation of soils to landscape and underlying material in the Wilkes-Lloyd soil association (Soil Survey of Cherokee County, SC; 1962).

2. SC-2012-03-14-37 | York County - April 1965

   Major soils in association 4 and their relation to the landscape (Soil Survey of York County, SC; 1965).

Map Units

Map units containing IREDELL as a major component. Limited to 250 records.

Map Unit Name	Symbol	Map Unit Area (ac)	Map Unit Key	National Map Unit Symbol	Soil Survey Area	Publication Date	Map Scale
Iredell soils, eroded, sloping	IaC2	370	122723	43pt	al017	1957	1:20000
Iredell-Wilkes complex, 2 to 10 percent slopes	IwC	943	328508	c0v1	al021	1967	1:20000
Iredell-Wilkes complex, 0 to 2 percent slopes	IwA	299	328507	c0v0	al021	1967	1:20000
Iredell-Mecklenburg association, undulating	IMB	12845	122787	43rw	al027	1971	1:20000
Iredell fine sandy loam, 2 to 10 percent slopes	IrC	647	124258	459b	ga089	1979	1:15840
Wilkes-Iredell cobbly complex, 6 to 15 percent slopes	WHD	600	639984	pgyn	ga135	1966	1:15840
Iredell fine sandy loam, 0 to 6 percent slopes	IrB	2550	126951	4836	ga159	1997	1:24000
Iredell fine sandy loam, 6 to 10 percent slopes	IrC	375	126952	4837	ga159	1997	1:24000
Iredell sandy loam, 2 to 6 percent slopes, eroded	IbB2	85	124705	45rr	ga199	1960	1:15840
Iredell loam, 2 to 6 percent slopes	IcB	1745	125219	469b	ga604	1972	1:20000
Iredell gravelly fine sandy loam, 2 to 6 percent slopes, eroded	IaB2	700	125441	46jh	ga618	1966	1:15840
Iredell sandy loam, 2 to 6 percent slopes	IrB	27093	125726	46tp	ga636	1975	1:20000
Iredell sandy loam, 6 to 10 percent slopes	IrC	14577	125727	46tq	ga636	1975	1:20000
Iredell loam, 2 to 6 percent slopes	IrB	4697	3050360	2xn5p	nc001	2017	1:12000
Iredell loam, 6 to 10 percent slopes	IrC	1388	3050361	2xn5q	nc001	2017	1:12000
Iredell clay loam, 2 to 6 percent slopes, moderately eroded	IsB2	493	3050362	2xn5r	nc001	2017	1:12000
Iredell-Urban land complex, 2 to 6 percent slopes	IuB	74	3050363	2xn5s	nc001	2017	1:12000
Iredell fine sandy loam, 1 to 6 percent slopes	IrB	1171	114525	3v5c	nc007	1999	1:24000
Iredell loam, 0 to 2 percent slopes	IdA	6030	111650	3r5m	nc025	1983	1:24000
Iredell loam, 2 to 6 percent slopes	IdB	3085	111651	3r5n	nc025	1983	1:24000
Pittsboro-Iredell complex, 2 to 8 percent slopes, stony	PsB	4830	1485670	1lvyv	nc037	2005	1:24000
Iredell fine sandy loam, 2 to 6 percent slopes	IrB	1017	1485593	1lvwc	nc037	2005	1:24000
Iredell loam, 1 to 6 percent slopes	IrB	975	112168	3rqb	nc057	1985	1:24000
Iredell loam, 1 to 6 percent slopes	IrB	357	2432575	2mn95	nc059	1988	1:24000
Iredell loam, 2 to 6 percent slopes	IrB	3630	112322	3rw9	nc063	1971	1:15840
Iredell loam, 6 to 10 percent slopes	IrC	2219	112323	3rwb	nc063	1971	1:15840
Iredell-Urban land complex, 0 to 6 percent slopes	IuB	392	112324	3rwc	nc063	1971	1:15840
Iredell-Urban land complex, 6 to 10 percent slopes	IuC	108	112325	3rwd	nc063	1971	1:15840
Iredell loam, 2 to 6 percent slopes	IrB	10778	112769	3sbq	nc077	1993	1:24000
Urban land-Iredell-Creedmoor complex, 2 to 10 percent slopes	UrC	1779	112785	3sc7	nc077	1993	1:24000
Iredell loam, 6 to 10 percent slopes	IrC	786	112770	3sbr	nc077	1993	1:24000
Iredell-Urban land-Picture complex, 0 to 10 percent slopes	IuC	606	112771	3sbs	nc077	1993	1:24000
Iredell fine sandy loam, 0 to 4 percent slopes	IrB	2809	2433171	2mnxd	nc081	1975	1:20000
Iredell loam, 2 to 6 percent slopes	IrB	806	2424382	2mcrw	nc097	2011	1:12000
Iredell loam, 6 to 10 percent slopes	IrC	339	2424384	2mcry	nc097	2011	1:12000
Iredell fine sandy loam, 1 to 8 percent slopes	IrB	13490	113674	3t8x	nc119	1977	1:24000
Iredell fine sandy loam, 0 to 1 percent slopes	IrA	3369	113673	3t8w	nc119	1977	1:24000
Iredell-Urban land complex, 0 to 8 percent slopes	IuB	1952	113675	3t8y	nc119	1977	1:24000
Iredell clay loam, 2 to 6 percent slopes	IrB	1464	113909	3tjh	nc125	1987	1:24000
Iredell gravelly loam, 1 to 4 percent slopes	IrB	2808	114111	3tr0	nc135	1975	1:20000
Iredell-Urban land complex, 1 to 8 percent slopes	IuB	775	114112	3tr1	nc135	1975	1:20000
Iredell gravelly loam, 2 to 6 percent slopes	IrB	9636	2441281	2myc0	nc145	1987	1:24000
Iredell loam, 0 to 2 percent slopes	IdA	1113	2441279	2myby	nc145	1987	1:24000
Iredell fine sandy loam, 8 to 15 percent slopes	IrD	61	2430533	2ml59	nc157	1983	1:24000
Iredell fine sandy loam, 2 to 8 percent slopes	IrB	40	2430532	2ml58	nc157	1983	1:24000
Iredell loam, 1 to 8 percent slopes	IrB	702	114989	3vnb	nc159	1996	1:24000
Iredell loam, 0 to 3 percent slopes	IrA	1689	115356	3w15	nc179	1991	1:24000
Iredell fine sandy loam, 2 to 8 percent slopes	IrB	3867	117678	3yg2	nc181	1977	1:20000
Sedgefield-Iredell complex, 2 to 8 percent slopes	SeB	701	2455024	2ndnb	nc185	2009	1:24000
Iredell fine sandy loam, 2 to 6 percent slopes	IdB	5172	1155010	17rwd	sc001	1976	1:20000
Iredell variant loam, 0 to 2 percent slopes	IvA	1484	1155011	17rwf	sc001	1976	1:20000
Iredell fine sandy loam, 2 to 6 percent slopes	IrB	1006	132090	4ffz	sc021	1960	1:20000
Iredell fine sandy loam, 6 to 10 percent slopes, eroded	IrC2	636	132091	4fg0	sc021	1960	1:20000
Iredell clay loam, 6 to 10 percent slopes, severely eroded	IcC3	419	132089	4ffy	sc021	1960	1:20000
Iredell fine sandy loam, 1 to 6 percent slopes	IdB	21775	132193	4fk9	sc023	1977	1:20000
Iredell fine sandy loam, 1 to 6 percent slopes	IdB	3155	129918	4c5x	sc039	1977	1:20000
Iredell sandy loam, 2 to 6 percent slopes	IeB	3215	130063	4cbl	sc047	1973	1:20000
Iredell sandy loam, 0 to 2 percent slopes	IeA	1311	130062	4cbk	sc047	1973	1:20000
Iredell complex, 2 to 6 percent slopes, eroded	IrB2	1027	130303	4clb	sc057	1967	1:20000
Iredell complex, 6 to 10 percent slopes, eroded	IrC2	205	130304	4clc	sc057	1967	1:20000
Iredell fine sandy loam, 2 to 6 percent slopes	IdB	268	130379	4cns	sc059	1970	1:20000
Iredell sandy loam, 2 to 6 percent slopes	IeB	2843	130713	4d0k	sc065	1973	1:20000
Iredell sandy loam, 0 to 2 percent slopes	IeA	621	130712	4d0j	sc065	1973	1:20000
Iredell fine sandy loam, 2 to 6 percent slopes	IdB	3098	131483	4dtd	sc087	1970	1:20000
Iredell stony loam, 2 to 6 percent slopes	IrB	476	131484	4dtf	sc087	1970	1:20000
Iredell loam, 1 to 6 percent slopes	IeB	210	130204	4ch4	sc610	1985	1:20000
Iredell loam, 2 to 7 percent slopes	8B	9047	118491	3z99	va011	1993	1:15840
Iredell loam, 7 to 15 percent slopes	8C	2303	118492	3z9b	va011	1993	1:15840
Iredell gravelly sandy loam, 2 to 8 percent slopes	18B	785	2420745	2m7zk	va025	2007	1:24000
Iredell gravelly sandy loam, 8 to 15 percent slopes	18C	298	2420746	2m7zl	va025	2007	1:24000
Iredell loam, 2 to 6 percent slopes, eroded	IrB2	1517	118744	3zkg	va037	1970	1:15840
Iredell loam, 6 to 10 percent slopes, eroded	IrC2	1304	118745	3zkh	va037	1970	1:15840
Iredell loam, 2 to 6 percent slopes	IrB	1091	118743	3zkf	va037	1970	1:15840
Iredell loam, 2 to 7 percent slopes	21B	2584	695357	rbkw	va081	1986	1:15840
Iredell clay loam, 7 to 15 percent slopes, severely eroded	22C3	778	695358	rbkx	va081	1986	1:15840
Orange-Iredell complex, 2 to 7 percent slopes	48B	1840	119127	3zyt	va085	1976	1:15840
Iredell-Orange complex, 7 to 15 percent slopes	38C	850	119112	3zyb	va085	1976	1:15840
Iredell sandy loam, 2 to 7 percent slopes, eroded	IdB2	1488	119374	406s	va109	1972	1:15840
Iredell loam, 0 to 2 percent slopes	IrA	1352	119376	406v	va109	1972	1:15840
Iredell sandy loam, 7 to 15 percent slopes, eroded	IdC2	789	119375	406t	va109	1972	1:15840
Iredell sandy loam, 2 to 7 percent slopes	IdB	694	119373	406r	va109	1972	1:15840
Iredell loam, 2 to 7 percent slopes	IrB	293	119377	406w	va109	1972	1:15840
Iredell silt loam, silty subsoil variant	Iv	271	119378	406x	va109	1972	1:15840
Iredell loam, 1 to 6 percent slopes	12B	8771	119445	4092	va111	1979	1:20000
Iredell loam, 6 to 12 percent slopes, eroded	12C2	7369	119446	4093	va111	1979	1:20000
Iredell silt loam, 2 to 7 percent slopes	IrB	153	517008	kbzp	va113	1967	1:15840
Iredell loam, 1 to 6 percent slopes	IrB	4243	119587	40fn	va117	1990	1:24000
Iredell loam, 6 to 12 percent slopes	IrC	282	119588	40fp	va117	1990	1:24000
Iredell-Mecklenburg loams, undulating phases	Ia	320	121899	42v7	va135	1956	1:20000
Iredell-Mecklenburg loams, eroded rolling phases	Ic	190	121901	42v9	va135	1956	1:20000
Iredell-Mecklenburg loams, rolling phases	Ib	181	121900	42v8	va135	1956	1:20000
Iredell-Zion fine sandy loams, undulating phases	Ib	1458	120257	4148	va147	1950	1:20000
Iredell-Zion fine sandy loams, rolling phases	Ia	600	120256	4147	va147	1950	1:20000
Orange-Iredell loams, 2 to 7 percent slopes	33B	1564	120426	419q	va177	1980	1:15840
Orange-Iredell loams, 7 to 15 percent slopes, eroded	33C2	1119	120427	419r	va177	1980	1:15840
Iredell loam, 2 to 6 percent slopes	IrB	3082	120719	41m5	va631	1973	1:15840
Iredell loam, 6 to 10 percent slopes	IrC	965	120721	41m7	va631	1973	1:15840
Iredell loam, 6 to 10 percent slopes, eroded	IrC2	228	120722	41m8	va631	1973	1:15840
Iredell loam, 2 to 6 percent slopes, eroded	IrB2	220	120720	41m6	va631	1973	1:15840
Iredell loam, 2 to 7 percent slopes	11B	7582	2481782	2p9hh	va653	1991	1:24000
Iredell loam, 7 to 15 percent slopes	11C	681	2481784	2p9hk	va653	1991	1:24000

Map of Series Extent

Approximate geographic distribution of the IREDELL soil series. To learn more about how this distribution was mapped, or to compare this soil series extent to others, use the Series Extent Explorer (SEE) application. Source: generalization of SSURGO geometry (updated 2023-10-04).