Note: soil composition organic matter, sand, silt and clay are percentage by dry weight
Allegheny County - key soil properties
| Sym | Name | pH | Org | Sand | Silt | Clay |
|---|---|---|---|---|---|---|
| AgB | Allegheny silt loam, coarse subsoil variant, 2 to 8 percent slopes | 4.6 | 1.75 | 30.4 | 48.0 | 21.7 |
| AgC | Allegheny silt loam, coarse subsoil variant, 8 to 15 percent slopes | 4.6 | 1.75 | 30.4 | 47.3 | 22.3 |
| At | Atkins silt loam | 5.0 | 2.00 | 22.5 | 52.7 | 24.8 |
| BrB | Brinkerton silt loam, 2 to 8 percent slopes | 5.8 | 1.83 | 9.9 | 65.4 | 24.7 |
| BrC | Brinkerton silt loam, 8 to 15 percent slopes | 5.3 | 1.98 | 9.0 | 67.9 | 23.1 |
| CaB | Cavode silt loam, 2 to 8 percent slopes | 5.0 | 2.58 | 16.7 | 56.3 | 27.0 |
| CaC | Cavode silt loam, 8 to 15 percent slopes | 5.0 | 2.58 | 16.7 | 56.3 | 27.0 |
| CeB | Caneadea silt loam, 3 to 8 percent slopes | 6.0 | 2.08 | 18.3 | 53.3 | 28.3 |
| CkB | Clarksburg silt loam, 3 to 8 percent slopes | 5.8 | 2.00 | 27.3 | 54.7 | 18.0 |
| CkC | Clarksburg silt loam, 8 to 15 percent slopes | 5.8 | 2.00 | 27.3 | 54.7 | 18.0 |
| CmB | Clymer silt loam, 3 to 8 percent slopes | 4.6 | 1.98 | 28.2 | 49.2 | 22.6 |
| CmC | Clymer silt loam, 8 to 15 percent slopes | 4.6 | 1.98 | 28.2 | 49.2 | 22.6 |
| CmD | Clymer silt loam, 15 to 25 percent slopes | 4.6 | 1.98 | 28.2 | 49.2 | 22.6 |
| CoB | Cookport loam, 3 to 8 percent slopes | 5.0 | 2.00 | 40.0 | 44.0 | 16.0 |
| CoD | Cookport loam, 15 to 25 percent slopes | 5.0 | 1.40 | 40.8 | 41.2 | 18.0 |
| CuB | Culleoka silt loam, 3 to 8 percent slopes | 6.4 | 2.17 | 25.8 | 52.3 | 21.8 |
| CuC | Culleoka silt loam, 8 to 15 percent slopes | 6.4 | 2.17 | 25.8 | 52.3 | 21.8 |
| CuD | Culleoka silt loam, 15 to 25 percent slopes | 6.4 | 2.17 | 25.8 | 52.3 | 21.8 |
| CwB | Culleoka-Weikert shaly silt loams, 3 to 8 percent slopes | 5.6 | 1.60 | 23.5 | 53.3 | 23.2 |
| CwC | Culleoka-Weikert shaly silt loams, 8 to 15 percent slopes | 5.6 | 1.60 | 23.5 | 53.3 | 23.2 |
| CwD | Culleoka-Weikert shaly silt loams, 15 to 25 percent slopes | 5.6 | 1.60 | 23.5 | 53.3 | 23.2 |
| DoB | Dormont silt loam, 2 to 8 percent slopes | 6.6 | 3.00 | 26.0 | 54.0 | 20.0 |
| DoC | Dormont silt loam, 8 to 15 percent slopes | 6.6 | 3.00 | 26.0 | 54.0 | 20.0 |
| DoD | Dormont silt loam, 15 to 25 percent slopes | 6.6 | 3.00 | 26.0 | 54.0 | 20.0 |
| DoE | Dormont silt loam, 25 to 35 percent slopes | 6.6 | 3.00 | 26.0 | 54.0 | 20.0 |
| Du | Dumps, coal wastes | * | * | * | * | * |
| Dw | Dumps, industrial wastes | * | * | * | * | * |
| ErB | Ernest silt loam, 2 to 8 percent slopes | 5.3 | 2.17 | 24.2 | 54.5 | 21.3 |
| ErC | Ernest silt loam, 8 to 15 percent slopes | 5.3 | 2.17 | 24.2 | 54.5 | 21.3 |
| ErD | Ernest silt loam, 15 to 25 percent slopes | 5.3 | 2.17 | 24.2 | 54.5 | 21.3 |
| EvB | Ernest-Vandergrift silt loams, 3 to 8 percent slopes | 5.2 | 1.62 | 23.6 | 54.0 | 22.5 |
| EvC | Ernest-Vandergrift silt loams, 8 to 15 percent slopes | 5.2 | 1.62 | 23.6 | 54.0 | 22.5 |
| EvD | Ernest-Vandergrift silt loams, 15 to 25 percent slopes | 5.2 | 1.62 | 23.6 | 54.0 | 22.5 |
| GlB | Gilpin silt loam, 2 to 8 percent slopes | 4.6 | 1.58 | 23.5 | 53.2 | 23.3 |
| GlC | Gilpin silt loam, 8 to 15 percent slopes | 4.6 | 1.58 | 23.5 | 53.2 | 23.3 |
| GlD | Gilpin silt loam, 15 to 25 percent slopes | 4.6 | 1.58 | 24.7 | 52.5 | 22.8 |
| GP | Gravel pits | * | * | * | * | * |
| GpB | Gilpin-Upshur complex, 3 to 8 percent slopes | 5.5 | 1.67 | 25.2 | 52.2 | 22.7 |
| GpC | Gilpin-Upshur complex, 8 to 15 percent slopes | 5.5 | 1.67 | 25.2 | 52.2 | 22.7 |
| GpD | Gilpin-Upshur complex, 15 to 25 percent slopes | 5.5 | 1.67 | 25.2 | 52.2 | 22.7 |
| GQF | Gilpin-Upshur complex, very steep | 5.5 | 1.67 | 25.2 | 52.2 | 22.7 |
| GrE | Gilpin-Vandergrift silt loams, slumped, 15 to 35 percent slopes | 5.4 | 2.08 | 22.3 | 53.6 | 28.3 |
| GSF | Gilpin, Weikert, and Culleoka shaly silt loams, very steep | 4.6 | 1.12 | 22.3 | 53.6 | 24.1 |
| GuB | Guernsey silt loam, 2 to 8 percent slopes | 5.8 | 1.46 | 17.9 | 53.1 | 29.0 |
| GuC | Guernsey silt loam, 8 to 15 percent slopes | 5.8 | 1.46 | 17.9 | 53.1 | 29.0 |
| GuD | Guernsey silt loam, 15 to 25 percent slopes | 5.8 | 1.46 | 18.0 | 55.8 | 26.2 |
| GvB | Guernsey-Vandergrift silt loams, 3 to 8 percent slopes | 5.8 | 1.46 | 17.9 | 53.1 | 29.0 |
| GvC | Guernsey-Vandergrift silt loams, 8 to 15 percent slopes | 5.8 | 1.46 | 17.9 | 53.1 | 29.0 |
| GvD | Guernsey-Vandergrift silt loams, 15 to 25 percent slopes | 5.9 | 1.30 | 23.0 | 53.0 | 24.0 |
| GwC | Gilpin-Wharton silt loams, 8 to 15 percent slopes | 4.6 | 1.58 | 23.5 | 53.2 | 23.3 |
| GwD | Gilpin-Wharton complex, 15 to 25 percent slopes | 4.6 | 1.58 | 23.5 | 53.2 | 23.3 |
| Gx | Gullied land | * | * | * | * | * |
| HaB | Hazleton loam, 3 to 8 percent slopes | 4.6 | 1.62 | 56.8 | 30.7 | 12.5 |
| HaC | Hazleton loam, 8 to 15 percent slopes | 4.6 | 1.62 | 56.8 | 30.7 | 12.5 |
| HaD | Hazleton loam, 15 to 25 percent slopes | 4.6 | 1.62 | 56.8 | 30.7 | 12.5 |
| HTE | Hazleton loam, steep | 4.6 | 1.62 | 56.8 | 30.7 | 12.5 |
| Hu | Huntington silt loam | 6.7 | 4.50 | 7.0 | 69.0 | 24.0 |
| LbB | Library silty clay loam, 3 to 8 percent slopes | 6.0 | 2.83 | 16.0 | 57.9 | 26.1 |
| LbC | Library silty clay loam, 8 to 15 percent slopes | 6.0 | 2.83 | 16.0 | 57.9 | 26.1 |
| LbD | Library silty clay loam, 15 to 25 percent slopes | 5.5 | 2.08 | 13.0 | 51.1 | 35.8 |
| Ln | Lindside silt loam | 6.5 | 2.83 | 11.0 | 67.6 | 21.4 |
| Ne | Newark silt loam | 6.7 | 1.98 | 12.1 | 68.7 | 19.2 |
| Ph | Philo silt loam | 5.9 | 2.54 | 30.0 | 56.0 | 14.0 |
| QU | Quarries | * | * | * | * | * |
| RaA | Rainsboro silt loam, 0 to 3 percent slopes | 5.7 | 1.42 | 9.9 | 68.1 | 22.0 |
| RaB | Rainsboro silt loam, 3 to 8 percent slopes | 5.7 | 1.42 | 9.9 | 68.1 | 22.0 |
| RaC | Rainsboro silt loam, 8 to 15 percent slopes | 5.7 | 1.42 | 9.9 | 68.1 | 22.0 |
| RyB | Rayne silt loam, 2 to 8 percent slopes | 5.0 | 1.59 | 26.1 | 53.5 | 20.4 |
| RyC | Rayne silt loam, 8 to 15 percent slopes | 5.0 | 1.59 | 26.1 | 53.5 | 20.4 |
| SmB | Strip mines, 0 to 8 percent slopes | 6.5 | 0.93 | 23.1 | 45.2 | 31.7 |
| SmD | Strip mines, 8 to 25 percent slopes | 6.5 | 0.92 | 23.1 | 45.2 | 31.7 |
| SmF | Strip mines, 25 to 75 percent slopes | 6.5 | 0.12 | 22.5 | 48.8 | 28.7 |
| TaB | Tilsit silt loam, 3 to 8 percent slopes | 4.6 | 1.42 | 12.1 | 67.4 | 20.5 |
| UaB | Upshur silty clay loam, 3 to 8 percent slopes | 6.2 | 1.33 | 7.3 | 51.3 | 41.3 |
| UaC | Upshur silty clay loam, 8 to 15 percent slopes | 6.2 | 1.33 | 7.3 | 51.3 | 41.3 |
| UB | Urban land | * | * | * | * | * |
| UCB | Urban land-Culleoka complex, gently sloping | * | * | * | * | * |
| UCD | Urban land-Culleoka complex, moderately steep | * | * | * | * | * |
| UCE | Urban land-Culleoka complex, steep | * | * | * | * | * |
| UGB | Urban land-Guernsey complex, gently sloping | * | * | * | * | * |
| UGD | Urban land-Guernsey complex, moderately steep | * | * | * | * | * |
| URB | Urban land-Rainsboro complex, gently sloping | * | * | * | * | * |
| URC | Urban land-Rainsboro complex, sloping | * | * | * | * | * |
| UWB | Urban land-Wharton complex, gently sloping | * | * | * | * | * |
| UWD | Urban land-Wharton complex, moderately steep | * | * | * | * | * |
| VcB | Vandergrift-Cavode silt loams, 3 to 8 percent slopes | 5.4 | 1.90 | 17.7 | 52.8 | 29.5 |
| VcC | Vandergrift-Cavode silt loams, 8 to 15 percent slopes | 5.4 | 1.90 | 17.7 | 52.8 | 29.5 |
| VcD | Vandergrift-Cavode silt loams, 15 to 25 percent slopes | 5.4 | 1.90 | 17.7 | 52.8 | 29.5 |
| W | Water | * | * | * | * | * |
| WEF | Weikert-Rock outcrop complex, very steep | 5.3 | 1.38 | 34.0 | 45.0 | 21.0 |
| WhB | Wharton silt loam, 2 to 8 percent slopes | 4.8 | 2.12 | 25.0 | 53.4 | 21.7 |
| WhC | Wharton silt loam, 8 to 15 percent slopes | 5.3 | 2.03 | 21.2 | 56.0 | 22.8 |
| WhD | Wharton silt loam, 15 to 25 percent slopes | 5.3 | 2.03 | 21.2 | 56.0 | 22.8 |
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