Parent Material Name Aggregation Method: Dominant Condition Tie-break Rule: Lower Ontario County, New York Survey Area Version and Date: 13 - 09/24/2016 Map Map unit symbol Map unit name Rating percent 1A Fluvaquents-Udifluvents complex, 0 to 3 percent alluvium with highly variable texture 45 slopes, frequently flooded 2A Geneseo silty clay loam, 0 to 3 percent slopes silty alluvium mainly from areas of siltstone, shale, and 90 limestone 3A Hemlock silty clay loam, 0 to 3 percent slopes silty alluvium 100 4A Naples Creek silty clay loam, 0 to 3 percent slopes silty alluvium 95 5A Wayland soils complex, 0 to 3 percent slopes, silty and clayey alluvium derived from interbedded 90 frequently flooded sedimentary rock 12D Rockrift channery silt loam, 15 to 25 percent slopes channery loamy till and local colluvium derived from 85 sandstone, siltstone, and shale 13F Rock outcrop-Arnot complex, 25 to 70 percent slopes 55 14D Cadosia channery silt loam, 15 to 25 percent slopes channery loamy till and local colluvium derived from 85 sandstone, siltstone, and shale 15A Guyanoga channery silt loam, fan, 0 to 3 percent channery fan alluvium derived from dark shale with varying 90 slopes amounts of siltstone and sandstone 15B Guyanoga channery silt loam, fan, 3 to 8 percent channery fan alluvium derived from dark shale with varying 90 slopes amounts of siltstone and sandstone 16A Almond channery silt loam, 0 to 3 percent slopes loamy till derived from shale, siltstone, and some sandstone 80 16B Almond channery silt loam, 3 to 8 percent slopes loamy till derived from shale, siltstone, and some sandstone 80 16C Almond channery silt loam, 8 to 15 percent slopes loamy till derived from shale, siltstone, and some sandstone 80 18A Homer fine sandy loam, 0 to 3 percent slopes loamy over calcareous, stratified sandy and gravelly 90 glaciofluvial deposits 19A Fine-loamy, mixed, active, mesic, Typic Argiaquolls, loamy glaciofluvial, glaciolacustrine, and/or eolian deposits 80 0 to 3 percent slopes over calcareous stratified sand and gravel 20A Atherton and Fine-loamy, mixed, active, mesic, Typic loamy glaciofluvial deposits over stratified deposits 80 Argiaquolls, 0 to 3 percent slopes 24A Howard gravelly loam, 0 to 3 percent slopes gravelly loamy glaciofluvial deposits over sandy and gravelly 80 glaciofluvial deposits, containing significant amounts of limestone 24B Howard gravelly loam, 3 to 8 percent slopes gravelly loamy glaciofluvial deposits over sandy and gravelly 80 glaciofluvial deposits, containing significant amounts of limestone 24C Howard gravelly loam, 8 to 15 percent slopes gravelly loamy glaciofluvial deposits over sandy and gravelly 80 glaciofluvial deposits, containing significant amounts of limestone 24D Howard soils, 15 to 25 percent slopes gravelly loamy glaciofluvial deposits over sandy and gravelly 65 glaciofluvial deposits, containing significant amounts of limestone 25A Chenango gravelly loam, 0 to 3 percent slopes gravelly loamy glaciofluvial deposits over sandy and gravelly 98 glaciofluvial deposits, derived mainly from sandstone, shale, and siltstone 25B Chenango gravelly loam, 3 to 8 percent slopes gravelly loamy glaciofluvial deposits over sandy and gravelly 95 glaciofluvial deposits, derived mainly from sandstone, shale, and siltstone 25C Chenango gravelly loam, 8 to 15 percent slopes gravelly loamy glaciofluvial deposits over sandy and gravelly 95 glaciofluvial deposits, derived mainly from sandstone, shale, and siltstone 25D Chenango gravelly loam, 15 to 25 percent slopes gravelly loamy glaciofluvial deposits over sandy and gravelly 98 glaciofluvial deposits, derived mainly from sandstone, shale, and siltstone 25E Chenango gravelly loam, 25 to 35 percent slopes gravelly loamy glaciofluvial deposits over sandy and gravelly 90 glaciofluvial deposits, derived mainly from sandstone, shale, and siltstone 26B Chenango channery loam, fan, 3 to 8 percent slopes gravelly loamy glaciofluvial deposits over sandy and gravelly 90 glaciofluvial deposits, derived mainly from sandstone, shale, and siltstone Application Version: 6.1.0.0 05/18/2017 Page 1 of 8 Parent Material Name Aggregation Method: Dominant Condition Tie-break Rule: Lower Ontario County, New York Survey Area Version and Date: 13 - 09/24/2016 Map Map unit symbol Map unit name Rating percent 27B Castile gravelly silt loam, 3 to 8 percent slopes gravelly loamy glaciofluvial deposits over sandy and gravelly 90 glaciofluvial deposits, derived mainly from sandstone, shale, and siltstone 31A Collamer silt loam, 0 to 3 percent slopes silty and clayey glaciolacustrine deposits 95 31B Collamer silt loam, 3 to 8 percent slopes silty and clayey glaciolacustrine deposits 95 31C Collamer silt loam, 8 to 15 percent slopes silty and clayey glaciolacustrine deposits 95 31D Collamer silt loam, 15 to 25 percent slopes silty and clayey glaciolacustrine deposits 95 32A Dunkirk fine sandy loam, 0 to 3 percent slopes silty and clayey glaciolacustrine deposits 93 32B Dunkirk fine sandy loam, 3 to 8 percent slopes silty and clayey glaciolacustrine deposits 93 33A Dunkirk silt loam, 0 to 3 percent slopes silty and clayey glaciolacustrine deposits 93 33B Dunkirk silt loam, 3 to 8 percent slopes silty and clayey glaciolacustrine deposits 93 33C Dunkirk silt loam, 8 to 15 percent slopes silty and clayey glaciolacustrine deposits 93 33D Dunkirk silt loam, 15 to 25 percent slopes silty and clayey glaciolacustrine deposits 90 33E Dunkirk silt loam, 25 to 35 percent slopes silty and clayey glaciolacustrine deposits 90 34A Lakemont silty clay loam, 0 to 3 percent slopes red clayey glaciolacustrine deposits derived from calcareous 85 shale 35A Odessa silt loam, 0 to 3 percent slopes red clayey glaciolacustrine deposits derived from calcareous 90 shale 35B Odessa silty clay loam, 3 to 8 percent slopes red clayey glaciolacustrine deposits derived from calcareous 89 shale 36A Schoharie silty clay loam, 0 to 3 percent slopes reddish clayey and silty glaciolacustrine deposits 90 36B Schoharie silty clay loam, 3 to 8 percent slopes reddish clayey and silty glaciolacustrine deposits 90 36C Schoharie silty clay loam, 8 to 15 percent slopes reddish clayey and silty glaciolacustrine deposits 90 36D Schoharie silty clay loam, 15 to 25 percent slopes reddish clayey and silty glaciolacustrine deposits 90 36E Schoharie silty clay loam, 25 to 45 percent slopes reddish clayey and silty glaciolacustrine deposits 90 37A Schoharie silt loam, 0 to 3 percent slopes reddish clayey and silty glaciolacustrine deposits 95 37B Schoharie silt loam, 3 to 8 percent slopes reddish clayey and silty glaciolacustrine deposits 95 38A Niagara silt loam, 0 to 3 percent slopes silty and clayey glaciolacustrine deposits 95 38B Niagara silt loam, 3 to 8 percent slopes silty and clayey glaciolacustrine deposits 95 39A Rhinebeck silty clay loam, 0 to 3 percent slopes clayey and silty glaciolacustrine deposits 90 41A Aeric Epiaquepts, 0 to 3 percent slopes sandy deltaic deposits over clayey glaciolacustrine deposits 95 43A Canandaigua silt loam, 0 to 3 percent slopes silty and clayey glaciolacustrine deposits 97 44A Canandaigua mucky silt loam, 0 to 3 percent slopes silty and clayey glaciolacustrine deposits 95 45A Fonda mucky silt loam, 0 to 3 percent slopes clayey glaciolacustrine deposits 95 46A Galen fine sandy loam, 0 to 3 percent slopes deltaic deposits with a high content of fine and very fine 90 sand 46B Galen fine sandy loam, 3 to 8 percent slopes deltaic deposits with a high content of fine and very fine 90 sand 48A Arkport fine sandy loam, 0 to 3 percent slopes glaciofluvial or deltaic deposits with a high content of fine 95 and very fine sand 48B Arkport fine sandy loam, 3 to 8 percent slopes glaciofluvial or deltaic deposits with a high content of fine 95 and very fine sand 48C Arkport fine sandy loam, 8 to 15 percent slopes glaciofluvial or deltaic deposits with a high content of fine 95 and very fine sand 48D Arkport fine sandy loam, 15 to 25 percent slopes glaciofluvial or deltaic deposits with a high content of fine 90 and very fine sand 49B Arkport loamy fine sand, 3 to 8 percent slopes glaciofluvial or deltaic deposits with a high content of fine 95 and very fine sand 49D Arkport loamy fine sand, 15 to 25 percent slopes glaciofluvial or deltaic deposits with a high content of fine 95 and very fine sand Application Version: 6.1.0.0 05/18/2017 Page 2 of 8 Parent Material Name Aggregation Method: Dominant Condition Tie-break Rule: Lower Ontario County, New York Survey Area Version and Date: 13 - 09/24/2016 Map Map unit symbol Map unit name Rating percent 49E Arkport loamy fine sand, 25 to 35 percent slopes glaciofluvial or deltaic deposits with a high content of fine 90 and very fine sand 49F Arkport loamy fine sand, 35 to 55 percent slopes glaciofluvial or deltaic deposits with a high content of fine 90 and very fine sand 50B Dunkirk-Arkport complex, 3 to 8 percent slopes silty and clayey glaciolacustrine deposits 55 50C Dunkirk-Arkport complex, 8 to 15 percent slopes silty and clayey glaciolacustrine deposits 65 50D Dunkirk-Arkport complex, 15 to 25 percent slopes silty and clayey glaciolacustrine deposits 65 53A Lamson fine sandy loam, 0 to 3 percent slopes calcareous sandy glaciolacustrine or deltaic deposits 90 54A Lamson mucky fine sandy loam, 0 to 3 percent deltaic or glaciolacustrine deposits with a high content of 90 slopes fine and very fine sand 56A Elnora loamy fine sand, 0 to 3 percent slopes deltaic deposits with a high content of fine and very fine 90 sand 58B Colonie loamy fine sand, 3 to 8 percent slopes