Official Series Description


Lab Data Summary

Aggregate lab data for the WILLIAMSTOWN soil series. This aggregation is based on all pedons with a current taxon name of WILLIAMSTOWN, 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 WILLIAMSTOWN were used in the calculation. Source: KSSL snapshot . Methods used to assemble the KSSL snapshot used by SoilWeb / SDE

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Pedons used in the lab summary:

MLRALab IDPedon IDTaxonnameCINSSL / NASIS ReportsLink To SoilWeb GMap
111ADC76281976IN031028Williamstown2Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties39.2104639,-85.5981139
111A91P0697S1991IN035003Williamstown6Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties40.101387,-85.5480576
111C95P010594IN039020Williamstown7Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties41.5466666666667,-85.9208333333333
111C93P0408S1993IN039001WILLIAMSTOWN6Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties41.4602776,-85.9180527
111DCA84011984IN015001Williamstown2Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties40.4594389,-86.6366722
111DTI84221984IN157022Williamstown2Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties40.4346889,-86.7318333
9809N0066S2008MI049001Williamstown1Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties42.9649806,-83.8994917
9809N0067S2008MI049003Williamstown1Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties42.9580528,-83.8825778
9809N0068S2008MI049005Williamstown1Primary | Supplementary | Taxonomy | Pedon | Water Retention | Correlation | Andic Soil Properties42.9578,-83.8823222

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the WILLIAMSTOWN 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.

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Sibling Summary

Siblings are those soil series that occur together in map units, in this case with the WILLIAMSTOWN series. Sketches are arranged according to their subgroup-level taxonomic structure. Source: SSURGO snapshot , parsed OSD records and snapshot of SC database .

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

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Geomorphic description summaries for the WILLIAMSTOWN 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 .

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

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Competing Series

Soil series competing with WILLIAMSTOWN share the same family level classification in Soil Taxonomy. Source: parsed OSD records and snapshot of the SC database .

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

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Geomorphic description summaries for the WILLIAMSTOWN 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 .

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Click the image to view it full size.

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Soil series sharing subgroup-level classification with WILLIAMSTOWN, 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 .

Block Diagrams

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

  1. IN-2010-09-02-01 | Pulaski County - 2003

    Typical pattern of soils and underlying material in the Williamstown-Metea-Riddles association (Soil Survey of Pulaski County, Indiana; 2003).

  2. IN-2010-09-09-01 | Boone County - 2004

    General pattern of soils, topography, and parent material in the Crosby-Treaty association (Soil Survey of Boone County, Indiana; 2004).

  3. IN-2010-09-09-04 | Boone County - 2004

    General pattern of soils, topography, and parent material in the Starks-Crosby-Cyclone association (Soil Survey of Boone County, Indiana; 2004).

  4. IN-2010-09-24-03 | Elkhart County -

    Typical pattern of soils and underlying material in the Riddles-Oshtemo association (Soil Survey of Elkhart County, Indiana).

  5. IN-2010-09-24-04 | Elkhart County -

    Typical pattern of soils and underlying material in the Crosier-Brookston-Williamstown association (Soil Survey of Elkhart County, Indiana).

  6. IN-2010-09-24-05 | Elkhart County -

    Typical pattern of soils and underlying material in the Adrian-Houghton-Edwards association (Soil Survey of Elkhart County, Indiana).

  7. IN-2010-09-24-08 | Delaware County -

    Pattern of soils and parent material in the Crosby-Treaty association (Soil Survey of Delaware County, Indiana).

  8. IN-2010-09-27-09 | St. Joseph County -

    Typical pattern of soils and underlying material in the Riddles-Crosier-Oshtemo association (Soil Survey of St. Joseph County, Indiana).

  9. IN-2010-09-27-10 | St. Joseph County -

    Typical pattern of soils and underlying material in the Crosier-Brookston-Williamstown association (Soil Survey of St. Joseph County, Indiana).

  10. IN-2012-01-20-03 | Rush County - January 1986

    Pattern of soils and parent material in the Fincastlel-Cyclone-Xenia map unit (Soil Survey of Rush County, Indiana; 1986).

  11. IN-2012-01-20-07 | Tipton County - April 1989

    Pattern of soils and parent material in the Patton-Del Rey-Crosby map unit (Soil Survey of Tipton County, Indiana; 1989).

Map Units

Map units containing WILLIAMSTOWN 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
Williamstown silt loam, 2 to 6 percent slopes, erodedWufB275062009142w0vsin00520021:12000
Crosby-Williamstown silt loams, 2 to 4 percent slopesCulB46282008822w0vwin00520021:12000
Williamstown-Crosby silt loams, 2 to 4 percent slopesWofB50106823912w0vvin01120031:12000
Williamstown-Urban land-Crosby complex, 2 to 4 percent slopesYwoB1726954052y46yin01120031:12000
Urban land-Williamstown-Crosby complex, 2 to 4 percent slopesUnvB103105082rbmfin01120031:12000
Rockfield-Williamstown complex, 1 to 6 percent slopes, erodedRrB2154381652315jy1in01519871:15840
Williamstown silt loam, 2 to 6 percent slopes, erodedWvB220121652512w0vsin01519871:15840
Williamstown silt loam, 2 to 6 percent slopes, erodedWmB134221624152w0vsin03119801:15840
Williamstown silt loam, 0 to 2 percent slopesWonA29791650232w0vtin03519971:12000
Williamstown-Crosier complex, 1 to 5 percent slopesWobB68901655285k7min03919971:12000
Williamstown loam, 5 to 10 percent slopes, erodedWoaC218981655295k7nin03919971:12000
Williamstown loam, 0 to 1 percent slopesWoaA5681655275k7lin03919971:12000
Williamstown clay loam, 5 to 10 percent slopes, severely erodedWodC31911655305k7pin03919971:12000
Williamstown silt loam, 2 to 6 percent slopes, erodedWufB25142425332w0vsin04519991:12000
Williamstown silt loam, 2 to 6 percent slopes, erodedWmB6851623122w0vsin04719841:15840
Williamstown-Crosby silt loams, 2 to 4 percent slopesWofB5632912872w0vvin05719761:15840
Williamstown silt loam, 2 to 6 percent slopes, erodedWkB4232912882w0vsin05719761:15840
Williamstown silt loam, 2 to 6 percent slopes, erodedWkB1632913332w0vsin06719671:20000
Williamstown silt loam, 2 to 6 percent slopes, erodedWufB277091452w0vsin07920101:12000
Crosby-Williamstown silt loams, 2 to 4 percent slopesCulB22616527582w0vwin08119751:15840
Williamstown silt loam, 2 to 6 percent slopes, erodedWkB132913572w0vsin09519651:15840
Williamstown-Crosier loams, 1 to 5 percent slopesWobB2624873402ph8sin09919781:15840
Williamstown loam, 1 to 5 percent slopes, erodedWoaB2624873382ph8qin09919781:15840
Williamstown loam, 0 to 1 percent slopesWoaA524873372ph8pin09919781:15840
Williamstown loam, 5 to 10 percent slopes, erodedWoaC2424873392ph8rin09919781:15840
Martinsville-Williamstown complex, 2 to 6 percent slopes, erodedMeB25941636245h86in11119901:15840
Martinsville-Williamstown complex, 0 to 2 percent slopesMeA2771636225h84in11119901:15840
Williamstown fine sandy loam, 0 to 2 percent slopesWogA258718498466h7in13120011:12000
Miami-Williamstown fine sandy loams, 2 to 5 percent slopesMnzB177318495566g9in13120011:12000
Williamstown-Crosier fine sandy loams, 1 to 5 percent slopesWoeB46818499266hhin13120011:12000
Williamstown-Winamac fine sandy loams, 1 to 5 percent slopesWoxB26518498566h8in13120011:12000
Williamstown-Winamac fine sandy loams, 0 to 1 percent slopesWoxA4618498666h9in13120011:12000
Williamstown silt loam, 2 to 6 percent slopes, erodedWwB216731610082w0vsin13919831:15840
Williamstown-Crosier loams, 1 to 5 percent slopesWobB13542003286qg6in14120011:12000
Williamstown loam, 1 to 5 percent slopes, erodedWoaB2680625238nzlzin14120011:12000
Williamstown-Moon complex, 1 to 5 percent slopesWujB339613949nlvtin14120011:12000
Williamstown loam, 0 to 1 percent slopesWoaA209625239nzm0in14120011:12000
Williamstown loam, 5 to 10 percent slopes, erodedWoaC2202003276qg5in14120011:12000
Urban land-Williamstown-Crosier complex, 1 to 5 percent slopesUnqB8625309nzp8in14120011:12000
Williamstown silt loam, 2 to 6 percent slopes, erodedWkB52621621662w0vsin15919851:15840
Rainsville-Williamstown-Rockfield silt loams, 2 to 6 percent slopes, erodedRfB2231881631605gs7in17119871:15840
Williamstown-Rainsville silt loams, 6 to 12 percent slopes, erodedWtC245991631865gt2in17119871:15840
Conover-Williamstown loams, 0 to 6 percent slopesCvracB22731172972y14lmi03719741:15840
Urban land-Crosier-Williamstown complex, 2 to 6 percent slopesUrbalB4624190541821yr3mi04919671:20000
Conover-Williamstown loams, 0 to 6 percent slopesCvracB289731172922y14lmi04919671:20000
Urban land-Williamstown complex, 0 to 6 percent slopesUrbakB709190542721yrdmi04919671:20000
Urban land-Williamstown-Owosso complex, 2 to 6 percent slopesUrbamB223190542021yr5mi04919671:20000
Conover-Williamstown loams, 0 to 6 percent slopesCvracB28931172852y14lmi05719751:12000
Williamstown-Conover complex, 1 to 6 percent slopes12B370411886156b8cmi05919911:15840
Conover-Williamstown loams, 0 to 6 percent slopesCvracB9731172832y14lmi06319781:20000
Conover-Williamstown loams, 0 to 6 percent slopesCvracB10731172742y14lmi07319831:15840
Conover-Williamstown loams, 0 to 6 percent slopesCvracB24331172692y14lmi08719661:15840
Conover-Williamstown loams, 0 to 6 percent slopesCvracB1131172612y14lmi11119761:15840
Conover-Williamstown loams, 0 to 6 percent slopesCvrabA2925731172522y14lmi14519911:15840
Conover-Williamstown loams, 0 to 6 percent slopesCvracB242131172502y14lmi14719691:20000
Conover-Williamstown loams, 0 to 6 percent slopesCvracB226231172482y14lmi15119551:15840
Conover-Williamstown loams, 0 to 6 percent slopesCvracB53631172452y14lmi15519671:12000
Conover-Williamstown loams, 0 to 6 percent slopesCvracB217931172422y14lmi15719841:15840

Map of Series Extent

Approximate geographic distribution of the WILLIAMSTOWN 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 .