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A2 horizon - 7 to 16 inches; brown (IOYR 5/3) silt loam with 10% shale and sandstone
<br />fragments, dazk brown (lOYR 4/3) moist; massive structure parting to moderate medium
<br />subangulaz blocky structure; hard dry consistence, friable moist consistence, slightly
<br />sticky and slightly plastic wet consistence; common fine and very fine and few medium
<br />and coarse roots; noneffervescent, slightly acid (pH 6.5, from lab data); gradual wavy
<br />boundary.
<br />Bwl horizon - 16 to 32 inches; brown (lOYR 5/3) silt loam with 10% shale and
<br />sandstone fragments, dark brown (IOYR 3/3) moist; massive structure; hard dry
<br />consistence, friable moist consistence, slightly sticky and slightly plastic moist
<br />consistence; few coazse, medium, fine and very fine roots; noneffervescent, neutral (pH
<br />6.7, from lab data); gradual wavy boundary.
<br />Bw2 horizon - 32 to 48 inches; dark grayish brown (lOYR 4/2) silt loam with 15% shale
<br />and sandstone fragments, very dark grayish brown (lOYR 3/2) moist; massive structure;
<br />hard dry consistence, firm moist consistence, sticky and plastic wet consistence;
<br />noneffervescent, slightly acid (pH 6.3, from lab data); gradual wavy boundary.
<br />OB (overburden spoil) - 48 to 72 inches; dark gray (lOYR 4/1) loam overburden spoil;
<br />very dark gray (lOYR 3/1) moist; compacted, massive structure; hazd dry consistence,
<br />firm moist consistence, sticky and plastic wet consistence; moderately effervescent,
<br />neutral (pH 7.3); gradual wary boundary.
<br />• Seneca II Mine Surface Material Samolioa Evaluatioe Results:
<br />"Revegetation Problem Area"
<br />For the approximate 47-acre "revegetation problem azea", all soil pazameters are
<br />evaluated as good (suitable) except for an extremely acidic soil reaction (pH) and
<br />partially negative acid-base potential. Soil pH for the "revegetation problem azea" is very
<br />low (acidic), and ranges from pH 2.8 (ultra acid) to 7.2 (neutral) with an average value of
<br />4.2 (extremely acid). Across the ten samples collected on the area, the individual pH
<br />values aze: 3.5, 3.7, 6.1, 4.7, 3.9, 3.5, 3.2, 3.8, 2.8, and 7.2.
<br />Concerning acid-base potential (ABP), no values are unsuitable (<-5 tons CaCO3
<br />equivalent11000 tons) (WDEQ, 1996). ABP values range from negative -3.39 to positive
<br />+34.1, with an average ABP value ofpos$ive +3.23. However, six ofthe ten ABP values
<br />aze negative and include: -2.60, -1.36, -2.00, -2.18, -2.46, and -3.39. Although these
<br />values aze not <-5 and therefore aze not "unsuitable" (WDEQ, 1996), they aze negative
<br />values and these indicate the overburden spoil material has the potential to generate acid.
<br />Concerning the other pazameters, saturation percent is good with values ranging from
<br />26.5 to 33.8 percent, with an average value of 31.4 percent. Electrical conductivity (EC)
<br />is good with values ranging from 0.17 (nonsaline) to 4.70 (slightly saline), with an
<br />• average value of EC 0.99 (nonsaline). Exchangeable sodium (SAR) is very low with
<br />values ranging from 0.04 to 0.32, with an average value of 0.19 (nonsodic). Nitrate-
<br />to
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