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Vantage to Pomona Heights Chapter 3
<br />230 kV Transmission Line Project FEIS Affected Environment
<br /> PAGE 3-318
<br />SERIES DESCRIPTION
<br />Grinrod
<br />Found on footslopes, sideslopes, ridgetops and benches. The parent material consists of residuum and
<br />colluvium from basalt with additions from loess. Depth to a root restrictive layer, bedrock, lithic, is 20 to 40
<br />inches. The natural drainage class is well drained.
<br />Haploxeralls Found on stream terraces and floodplains. The parent material consists of alluvium. Depth to a root restrictive
<br />layer is >78 inches. The natural drainage class is well drained.
<br />Harwood Found on terraces. The parent material consists of loess and old alluvium. Depth to a root restrictive layer,
<br />duripan, is 20 to 40 inches. The natural drainage class is well drained.
<br />Horseflat
<br />Found on hillslopes, ridges, and structural benches. The parent material consists of colluvium and residuum
<br />from basalt and loess. Depth to a root restrictive layer, bedrock, lithic, is 12 to 20 inches. The natural drainage
<br />class is well drained.
<br />Kennewick Found on terraces and terrace escarpments and foot slopes. The parent material consists of lacustrine
<br />sediments. Depth to a root restrictive layer is >78 inches. The natural drainage class is well drained.
<br />Kiona Found on hillslopes, hills. The parent material consists of loess and colluvium derived from basalt. Depth to a
<br />root restrictive layer is greater than 60 inches. The natural drainage class is well drained.
<br />Lainand
<br />Found on hillslopes, sideslopes of ridges, plateaus, and canyons. The parent materials consist of basalt
<br />colluviums with an influence of mixed loess and volcanic ash near the surface. Depth to a root restrictive layer,
<br />bedrock, lithic, is 40 to >60 inches. The natural drainage class is well drained.
<br />Laric
<br />Found on ridgetops and structural benches. The parent materials consist of loess and residuum weathered from
<br />basalt. The depth to a root restrictive layer, bedrock, lithic, is 5 to 12 inches. The natural drainage class is well
<br />drained.
<br />Levnik
<br />Found on hillslopes and plateaus. The parent materials consist of residuum weathered from basalt and slope
<br />alluvium with additions of loess. Depth to a root restrictive layer, bedrock, lithic, is 12 to 20 inches. The natural
<br />drainage class is well drained.
<br />Lickskillet
<br />Found on benches, shoulders of plateaus, canyon side slopes, hills, and ridgetops. The parent materials consist
<br />of residuum and colluvium derived from basalt. Depth to a root restrictive layer, lithic bedrock, is 20 inches The
<br />natural drainage class is well drained.
<br />Malaga Found on terraces. The parent material consists of glacial outwash. Depth to a root restrictive layer is 15 inches.
<br />The natural drainage class is somewhat excessively drained.
<br />Manastash
<br />Found on fan remnants interspersed with partial ballenas of piedmont slopes and on terrace remnants. The
<br />parent materials consist of old alluvium mixed with loess over cemented gravels. Depth to a root restrictive
<br />layer, duripan, is 20 to 40 inches. The natural drainage class is well drained.
<br />Marlic
<br />Found on ridgetops and structural benches. The parent materials consist of loess and slope alluvium over
<br />residuum weathered from basalt. Depth to a root restrictive layer, bedrock, lithic, is 12 to 20 inches. The natural
<br />drainage class is well drained.
<br />Meloza Found on alluvial fans. The parent material consists of fine textured interbedded sediments. Depth to a root
<br />restrictive layer is greater than 60 inches. The natural drainage class is well drained.
<br />Moxee Found on upland terraces. The parent material consists of loess. Depth to a root restrictive layer, duripan, is 18
<br />inches. The natural drainage class is well drained.
<br />Neviot
<br />Found on hillslopes and canyon walls. The parent materials consist of colluviums from basalt and loess with an
<br />influence of volcanic ash near the surface. Depth to a root-restrictive layer is greater than 60 inches. The natural
<br />drainage class is well drained.
<br />Nevo
<br />Found on plateaus, hillslopes, ridges, structural benches. The parent material consists of loess and residuum
<br />from basalt. Depth to a root restrictive layer, bedrock, lithic, is 5 to 12 inches. The natural drainage class is well
<br />drained.
<br />Niben
<br />Found on hillslopes, shoulders, footslopes and plateaus. The parent materials consist of interbedded sediments
<br />and slope alluvium with additions of loess. Depth to a root restrictive layer is greater than 60 inches. The natural
<br />drainage class is well drained.
<br />Norod Found on hillslopes. The parent material consists of basalt colluviums and loess mixed with volcanic ash near
<br />the surface. Depth to a root restrictive layer, bedrock, lithic, is 25 to 40 inches.
<br />Palerf
<br />Found on hillslopes. The parent material consists of residuum and colluvium from basalt, and loess mixed with
<br />volcanic ash. Depth to a root restrictive layer, bedrock, lithic, is 25 to 40 inches. The natural drainage class is
<br />well drained.
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