Soil Data Explorer - WELD

Official Series Description

Lab Data Summary

Aggregate lab data for the WELD soil series. This aggregation is based on all pedons with a current taxon name of WELD, 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 WELD were used in the calculation. Source: KSSL snapshot (updated 2025-01-21). 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
67	95P0010	94CO121002	Weld	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	39.9642487,-103.2931366
67B	81P0164	79CO121001	Weld	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.1527778,-103.1458333
67B	81P0165	79CO121002	Weld	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.1458333,-103.1416667
67B	81P0166	79CO121003	Weld	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.1458333,-103.1416667
67B	81P0167	79CO121004	Weld	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.1458333,-103.1375
67B	81P0168	79CO121005	Weld	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.1458333,-103.1375
67B	81P0169	79CO121006	Weld	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.1458333,-103.15
67B	88P0529	88CO063136	Weld	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	39.2047234,-102.5036087
67B	88P0533	88CO063161	Weld	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	39.1413879,-102.8775024
67B	40A3937	S1954CO063002	Weld	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	39.3155556,-102.5625
67B	40A3934	S1961CO005003	Weld	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	39.5961113,-103.9555588
67B	40A3935	S1961CO005007	Weld	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	39.7050018,-104.0030594
67B	10N0961	S2010C0121005	Weld	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	39.9483611,-103.7029167
67B	10N0957	S2010CO121001	Weld	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	39.6685833,-103.1410278
67B	10N0965	S2010CO121009	Weld	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	39.9419444,-103.6978611
67B	10N0969	S2010CO121013	Weld	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	39.6849722,-103.1731944
67B	13N0471	S2012CO123002	Weld	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.5655,-104.9358056
67B	17N0845	S2017CO013002	Weld	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.1138,-105.1111028
67B	17N0846	S2017CO013002A	Weld	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.1141389,-105.1113389
67B	17N0847	S2017CO013002B	Weld	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.1138139,-105.1115917
67B	17N0854	S2017CO013005	Weld	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.0818917,-105.1406222
67B	17N0855	S2017CO013005A	Weld	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.082225,-105.14025
67B	17N0856	S2017CO013005B	Weld	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.0823333,-105.1407222
67B	17N0857	S2017CO013006	Weld	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.0843583,-105.0998528
67B	17N0858	S2017CO013006A	Weld	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.0841667,-105.10025
67B	17N0859	S2017CO013006B	Weld	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.0839722,-105.0996944
72	89P0559	89CO063272	Weld	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	39.5294456,-103.0025024
72	91P0044	90CO075001	Weld	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.459713,-103.029129
72	40A3936	S1954CO063001	Weld	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	39.1716652,-102.1647186
72	02N0413	S2001CO075004	Weld	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a
72	16N0336	S2015CO075008	Weld	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.4651389,-103.0347222
72	16N0339	S2015CO075011	Weld	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	40.4607778,-103.0331667
n/a	03N0724	S03CO-075-001	WELD	n/a	Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties	n/a
n/a	03N0729	S03CO-121-002	WELD	n/a	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 WELD 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 WELD series. Sketches are arranged according to their subgroup-level taxonomic structure. Source: SSURGO snapshot (updated 2025-10-03), parsed OSD records (updated 2025-09-23) and snapshot of SC database (updated 2025-12-01).

Select annual climate data summaries for the WELD 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 2025-10-08).

Geomorphic description summaries for the WELD 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 2025-10-06).

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

Competing Series

Soil series competing with WELD share the same family level classification in Soil Taxonomy. Source: parsed OSD records (updated 2025-09-23) and snapshot of the SC database (updated 2025-12-01).

Select annual climate data summaries for the WELD 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 2025-10-08).

Geomorphic description summaries for the WELD 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 2025-10-06).

Soil series sharing subgroup-level classification with WELD, 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 2025-12-01).

Block Diagrams

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

1. CO-2011-05-27-13 | Phillips County - 1971

   Cross section of Phillips County showing relationship of major soils to parent materials (Soil Survey of Phillips County, Colorado; 1971).

Map Units

Map units containing WELD 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
Weld loam, 1 to 3 percent slopes	WmB	107961	94099	2x0hw	co001	1968	1:20000
Weld-Deertrail complex, 0 to 3 percent slopes	WrB	19566	94100	34xh	co001	1968	1:20000
Urban land-Elyria-Weld complex, 0 to 15 percent slopes	UeE	139	3457841	31l2l	co001	1968	1:20000
Urban land-Elyria family-Weld complex, 0 to 3 percent slopes	UnA	21	3457842	30w76	co001	1968	1:20000
Weld-Deertrail silt loams, 0 to 3 percent slopes	WrB	25278	94173	34zv	co005	1971	1:20000
Weld silt loam, 0 to 3 percent slopes	WeB	20063	94171	2x0hx	co005	1971	1:20000
Weld silt loam, 3 to 5 percent slopes	WeC	2151	94172	31gk2	co005	1971	1:20000
Weld fine sandy loam, 0 to 3 percent slopes	WdB	770	3442317	31gk0	co005	1971	1:20000
Urban land-Elyria-Weld complex, 0 to 15 percent slopes	UeE	454	3442310	31l2l	co005	1971	1:20000
Urban land-Weld-Racas complex, 3 to 9 percent slopes	EwC	292	3442302	31l2j	co005	1971	1:20000
Urban land-Elyria family-Weld complex, 0 to 3 percent slopes	UnA	40	3442311	30w76	co005	1971	1:20000
Weld silt loam, dry, 0 to 1 percent slopes	WeA	7318	94295	2zcs2	co011	1965	1:15840
Weld silt loam, 0 to 3 percent slopes	53	11173	94344	2x0hx	co017	1985	1:24000
Urban land-Elyria-Weld complex, 0 to 15 percent slopes	UeE	2525	3390126	31l2l	co031	2025	1:24000
Urban land-Elyria family-Weld complex, 0 to 3 percent slopes	UnA	1803	3387232	30w76	co031	2025	1:24000
Urban land-Weld-Racas complex, 3 to 9 percent slopes	EwC	1537	3390124	31l2j	co031	2025	1:24000
Weld loam, 1 to 3 percent slopes	WmB	39	3442421	31l49	co031	2025	1:24000
Weld-Norka silt loams, 0 to 3 percent slopes	96	63320	96804	37qq	co063	1996	1:24000
Weld silt loam, 0 to 3 percent slopes	95	49332	96869	2x0hx	co063	1996	1:24000
Norka-Colby-Weld silt loams, 3 to 5 percent slopes	57	25273	96859	2w5dv	co063	1996	1:24000
Rago-Weld silt loams, 0 to 2 percent slopes	71	20301	96864	37sn	co063	1996	1:24000
Wages-Weld complex, 0 to 3 percent slopes	94	1147	96866	37sq	co063	1996	1:24000
Weld silt loam, 0 to 3 percent slopes	213	119606	105294	2x0hx	co073	2001	1:24000
Colby-Weld silt loams, 1 to 5 percent slopes	122	49569	105203	2t52z	co073	2001	1:24000
Weld silt loam, dry, 0 to 2 percent slopes	214	134	105295	3jkm	co073	2001	1:24000
Weld loam, 1 to 3 percent slopes	126	32672	94489	2x0hw	co075	1974	1:24000
Weld loam, 1 to 3 percent slopes	WmA	26392	110497	2x0hw	co087	1965	1:24000
Weld-Koen loams, 0 to 3 percent slopes	WoA	2037	110500	3pzj	co087	1965	1:24000
Weld loamy sand, 0 to 3 percent slopes	WnA	1196	110499	31gk1	co087	1965	1:24000
Weld loam, 3 to 5 percent slopes	WmC	920	110498	2x0j0	co087	1965	1:24000
Wages-Campus-Weld loams, 3 to 5 percent slopes	WcC	7028	94790	35mr	co095	1971	1:20000
Wages-Campus-Weld loams, 0 to 3 percent slopes	WcB	2003	94789	35mq	co095	1971	1:20000
Weld silt loam, 0 to 3 percent slopes	78	272436	95043	2x0hx	co121	1982	1:24000
Weld-Iliff loams	80	4673	95046	35x0	co121	1982	1:24000
Weld-Deertrail complex	79	823	95044	35wy	co121	1982	1:24000
Weld loam, 0 to 4 percent slopes	77	11741	95173	2x0hz	co617	1980	1:24000
Weld loam, 1 to 3 percent slopes	79	60277	95262	2x0hw	co618	1976	1:24000
Weld loam, 0 to 1 percent slopes	78	6193	95261	2x0hy	co618	1976	1:24000
Weld loam, 3 to 5 percent slopes	80	2424	95264	2x0j0	co618	1976	1:24000
Weld loam, 0 to 4 percent slopes	43	18058	496435	2x0hz	co623	1977	1:24000
Weld loam, 4 to 8 percent slopes	44	9083	496436	jnl2	co623	1977	1:24000
Weld loam, 1 to 3 percent slopes	WaB	45281	95347	2x0hw	co624	1963	1:20000
Weld loam, 3 to 5 percent slopes	WaC	12604	95348	2x0j0	co624	1963	1:20000
Weld loam, 0 to 1 percent slopes	WaA	4828	95346	2x0hy	co624	1963	1:20000
Urban land-Elyria-Weld complex, 0 to 15 percent slopes	UeE	605	3442287	31l2l	co641	1980	1:24000
Urban land-Elyria family-Weld complex, 0 to 3 percent slopes	UnA	119	3442288	30w76	co641	1980	1:24000
Weld loam, 1 to 3 percent slopes	WlB	3396	497616	2x0hw	co643	1975	1:20000
Weld-Colby complex, 0 to 3 percent slopes	WoB	2144	497617	jpt5	co643	1975	1:20000
Weld fine sandy loam, 0 to 3 percent slopes	WeB	1333	3442318	31gk0	co643	1975	1:20000
Weld-Colby complex, 3 to 5 percent slopes	WoC	574	497618	jpt6	co643	1975	1:20000
Weld loam, 0 to 1 percent slopes	WlA	494	497615	2x0hy	co643	1975	1:20000
Weld loamy sand, 0 to 3 percent slopes	WdB	211	497613	31gk1	co643	1975	1:20000
Weld silt loam, 0 to 3 percent slopes	115	6528	497652	2x0hx	co644	1980	1:24000
Norka-Weld loams, 0 to 6 percent slopes	NwB	7463	104726	3hz8	wy615	1965	1:20000
Norka-Weld loams, 6 to 10 percent slopes	NwC	770	104727	3hz9	wy615	1965	1:20000

Map of Series Extent

Approximate geographic distribution of the WELD 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 2025-10-04).