| Field categories extracted from the data files | Field categories described in the documentation | Summary of descriptions | ||
| soils.dbf | soils_wc_all.dbf | iaregnsoil.dbf | ispaid_user_guide.pdf: Category | |
| OBJECTID | Disregard; autogenerated by GIS software | |||
| SITE_ID | Disregard | |||
| Measure_Ty | Disregard | |||
| AREA | Disregard; autogenerated by GIS software | |||
| PERIMETER | Disregard; autogenerated by GIS software | |||
| S82_22_ | Disregard; autogenerated by GIS software | |||
| S82_22_ID | Disregard; autogenerated by GIS software | |||
| SMS | SMS | MUSYM | SMS | Soil Map Symbol |
| SMU | SMU | SMU | SMU | Soil Map Unit |
| SCSSOIL5 | SCSSOIL5 | SCSSOIL5 | SCSSOIL5 | NRCS-Soils-5 Number |
| SOILNAME | SOILNAME | SOILNAME | SOILNAME | Soil Name |
| LCC | LCC | LCC | LCC | Land Capability Class/Subclass |
| PRIMELND | PRIMELND | PRIMELND | PRIMELND | USDA Prime Farmland |
| LEAGFMLND | LEAGFMLND | LEAGFMLND | LEAGFMLND | LEAG Farmland Units |
| CSR | CSR | CSR | CSR | Corn Suitability Ratings |
| CORNYLD | CORNYLD | CORNYLD | CORNYLD | Corn Yield |
| SOYBNYLD | SOYBNYLD | SOYBNYLD | SOYBNYLD | Soybean Yield |
| OATYLD | OATYLD | OATYLD | OATYLD | Oat Yield |
| WHEATYLD | WHEATYLD | WHEATYLD | WHEATYLD | Wheat Yield |
| ALFBRMYLD | ALFBRMYLD | ALFBRMYLD | ALFBRMYLD | Alfalfa-Bromegrass Yield |
| TIGRSYLD | TIGRSYLD | TIGRSYLD | TIGRSYLD | Tall Introduced Grasses Yield |
| KYBGYLD | KYBGYLD | KYBGYLD | KYBGYLD | Kentucky Bluegrass Yield |
| MSA | MSA | MSA | MSA | Major Soil Area |
| MLRA | MLRA | MLRA | MLRA | Major Land Resource Area |
| ADDMLRA | ADDMLRA | ADDMLRA | ADDMLRA | No. of Additional MLRA's |
| ACREAGE | ACREAGE | ACREAGE | ACREAGE | Acreage |
| DSMACRES | DSMACRES | DSMACRES | Unknown | |
| SLOPERNGL | SLOPERNGL | SLOPERNGL | SLOPERNGL | Slope Range Low |
| SLOPERNGH | SLOPERNGH | SLOPERNGH | SLOPERNGH | Slope Range High |
| SLOPE_RANG | SLOPE_RANG | SLOPE_RANG | Slope range | |
| ORDER_ | ORDER_ | ORDER_ | ORDER | Taxonomic Classification (order) |
| SUBORDER | SUBORDER | SUBORDER | SUBORDER | Taxonomic Classification (suborder) |
| GREATGROUP | GREATGROUP | GREATGROUP | GREATGROUP | Taxonomic Classification (great group) |
| SUBGROUP | SUBGROUP | SUBGROUP | SUBGROUP | Taxonomic Classification (subgroup) |
| FAMILY | FAMILY | FAMILY | FAMILY | Taxonomic Classification (family) |
| SMUKIND | SMUKIND | SMUKIND | SMUKIND | Kind of Map Unit |
| COMPKIND | COMPKIND | COMPKIND | COMPKIND | Kind of Component |
| HYDROGRP | HYDROGRP | HYDROGRP | HYDROGRP | Hydrologic Group |
| HYDSOILCD | HYDSOILCD | HYDSOILCD | HYDSOILCD | Hydric Soil Code |
| FLOODFRQ | FLOODFRQ | FLOODFRQ | FLOODFRQ | Flooding Frequency |
| FLOODFRQCD | FLOODFRQCD | FLOODFRQCD | FLOODFRQCD | Flooding Frequency Code |
| AVWATCAPL | AVWATCAPL | AVWATCAPL | AVWATCAPL | Available Water Capacity Low |
| AVWATCAPH | AVWATCAPH | AVWATCAPH | AVWATCAPH | Available Water Capacity High |
| AVWATCAPAV | AVWATCAPAV | AVWATCAPAV | Unknown | |
| SURBDL | SURBDL | SURBDL | SURBDL | Surface Bulk Density Low |
| SURBDH | SURBDH | SURBDH | SURBDH | Surface Bulk Density High |
| SURBDMID | SURBDMID | SURBDMID | Surface bulk density, midpoint of range | |
| SUBSLBDL | SUBSLBDL | SUBSLBDL | SUBSLBDL | Subsoil Bulk Density Low |
| SUBSLBDH | SUBSLBDH | SUBSLBDH | SUBSLBDH | Subsoil Bulk Density High |
| SBSLBDMID | SBSLBDMID | SBSLBDMID | Subsoil bulk density, midpoint of range | |
| SUBSOILP | SUBSOILP | SUBSOILP | SUBSOILP | Subsoil P |
| SUBSOILK | SUBSOILK | SUBSOILK | SUBSOILK | Subsoil K |
| SUBSOILGRP | SUBSOILGRP | SUBSOILGRP | SUBSOILGRP | Subsoil Group |
| NATIVEVEG | NATIVEVEG | NATIVEVEG | NATIVEVEG | Native Vegetation |
| PARENTMAT | PARENTMAT | PARENTMAT | PARENTMAT | Parent Material |
| LNDSCPPOS | LNDSCPPOS | LNDSCPPOS | LNDSCPPOS | Landscape Position |
| DEPTHCNTRS | DEPTHCNTRS | DEPTHCNTRS | DEPTHCNTRS | Depth to Strongly Contrasting Particle-Size Class (0-40") Shallow |
| DEPTHCNTRD | DEPTHCNTRD | DEPTHCNTRD | DEPTHCNTRD | Depth to Strongly Contrasting Particle-Size Class (0-40") Deep |
| DEPTHCNTRM | DEPTHCNTRM | DEPTHCNTRM | Unknown | |
| TXCMPD060S | TXCMPD060S | TXCMPD060S | TXCMPD060S | Depth to Textural or Compositional Discontinuity (0-60") Shallow |
| TXCMPD060D | TXCMPD060D | TXCMPD060D | TXCMPD060D | Depth to Textural or Compositional Discontinuity (0-60") Deep |
| TXCMPD060M | TXCMPD060M | TXCMPD060M | Unknown | |
| TXCMP060CD | TXCMP060CD | TXCMP060CD | TXCMP060CD | Textural or Compositional Discontinuity Code |
| TXCMPD080S | TXCMPD080S | TXCMPD080S | TXCMPD080S | Depth to Textural or Compositional Discontinuity (0-80") Shallow |
| TXCMPD080D | TXCMPD080D | TXCMPD080D | TXCMPD080D | Depth to Textural or Compositional Discontinuity (0-80") Deep |
| TXCMPD080M | TXCMPD080M | TXCMPD080M | Unknown | |
| TXCMP080CD | TXCMP080CD | TXCMP080CD | TXCMP080CD | Textural or Compositional Discontinuity Code |
| DPTHHIWTRS | DPTHHIWTRS | DPTHHIWTRS | DPTHHIWTRS | Depth to High Water Table Shallow |
| DPTHHIWTRD | DPTHHIWTRD | DPTHHIWTRD | DPTHHIWTRD | Depth to High Water Table Deep |
| DPTHHIWTRR | DPTHHIWTRR | DPTHHIWTRR | Depth to High Water Table, Range | |
| PERM | PERM | PERM | PERM | Permeability |
| PERMCODE | PERMCODE | PERMCODE | PERMCODE | Permeability Code |
| DRNCLASS | DRNCLASS | DRNCLASS | DRNCLASS | Drainage Class (natural) |
| DRNCLSCD | DRNCLSCD | DRNCLSCD | DRNCLSCD | Drainage Class Code (natural) |
| TEXTSURHOR | TEXTSURHOR | TEXTSURHOR | TEXTSURHOR | Texture (surface horizon) |
| EROSIONC | EROSIONC | EROSIONC | EROSIONC | Erosion Class |
| OMM | OMM | OMM | OMM | Organic Matter Midpoint |
| OMR | OMR | OMR | OMR | Organic Matter Range (±) |
| OMRL | OMRL | OMRL | OMRL | Organic Matter Range Low |
| OMRH | OMRH | OMRH | OMRH | Range Low |
| PHSURL | PHSURL | PHSURL | PHSURL | pH (surface horizon) Low |
| PHSURH | PHSURH | PHSURH | PHSURH | pH (surface horizon) High |
| PHSURMID | PHSURMID | PHSURMID | pH or surface horizon, midpoint of range | |
| CECL | CECL | CECL | CECL | CEC Range Low |
| CECH | CECH | CECH | CECH | CEC Range High |
| CECMID | CECMID | CECMID | Cation exchange capacity, midpoint of range | |
| KFACTOR | KFACTOR | KFACTOR | KFACTOR | K Factor |
| KFFACTOR | KFFACTOR | KFFACTOR | KFFACTOR | KF Factor |
| TFACTOR | TFACTOR | TFACTOR | TFACTOR | T Factor |
| WINDERGRP | WINDERGRP | WINDERGRP | WINDERGRP | Wind Erodibility Group |
| CLAYSURL | CLAYSURL | CLAYSURL | CLAYSURL | Clay Content (surface) Low |
| CLAYSURH | CLAYSURH | CLAYSURH | CLAYSURH | Clay Content (surface) High |
| CLAYSURMID | CLAYSURMID | CLAYSURMID | Clay content of surface horizon, midpoint of range | |
| SANDCONTSL | SANDCONTSL | SANDCONTSL | SANDCONTSL | Sand Content (surface) Low |
| SANDCONTSH | SANDCONTSH | SANDCONTSH | SANDCONTSH | Sand Content (surface) High |
| SANDCONTSM | SANDCONTSM | SANDCONTSM | Sand content of surface horizon, midpoint of range | |
| SANDSIZESH | SANDSIZESH | SANDSIZESH | SANDSIZESH | Sand Size (surface horizon) |
| TOPSOILMP | TOPSOILMP | TOPSOILMP | TOPSOILMP | Topsoil Thickness Midpoint |
| TOPSOILRNG | TOPSOILRNG | TOPSOILRNG | TOPSOILRNG | Topsoil Thickness Range (±) |
| SURCOLVL | SURCOLVL | SURCOLVL | SURCOLVL | Surface Layer Color Value |
| SURCOLCHR | SURCOLCHR | SURCOLCHR | SURCOLCHR | Surface Layer Color Chroma |
| MOLCOLMD | MOLCOLMD | MOLCOLMD | MOLCOLMD | Thickness of Mollic Colors Midpoint |
| MOLCOLRNG | MOLCOLRNG | MOLCOLRNG | MOLCOLRNG | Thickness of Mollic Colors Range (±) |
| DPTFREECAR | DPTFREECAR | DPTFREECAR | DPTFREECAR | Depth to Free Carbonates |
| TONSRES | TONSRES | TONSRES | TONSRES | Tons of Residue/Acre |
| TILTHRTG | TILTHRTG | TILTHRTG | TILTHRTG | Tilth Rating |
| PWRINDX | PWRINDX | PWRINDX | PWRINDX | Power Index |
| HEL | HEL | HEL | HEL | Highly Erodible Land (HEL) Code |
| CONO | CONO | CONO | CONO | County Number |
| MUID | MUID | MUID | MUID | Map Unit ID |
| SSMU | SSMU | SSMU | SSMU | Series Soil Map Unit |
| OLDSBSOILP | OLDSBSOILP | OLDSBSOILP | Subsoil P, discontinued classification breaks; superseded by SUBSOILP | |
| OLDSBSOILK | OLDSBSOILK | OLDSBSOILK | Subsoil K, discontinued classification breaks; superseded by SUBSOILK | |
| Shape_Leng | Disregard | |||
| Shape_Area | Disregard | |||
| MUNAME | Disregard; superseded by SOILNAME | |||
| SURPERM | Permeability of surface horizon | |||