_INSPECTION - C1982057 (33) - Laserfiche WebLink

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III. COMMENTS-COMPLIANCE Below are comments on the inspection. The comments include discussion of observations made during the inspection. Comments also describe any enforcement actions taken during the inspection and the facts or evidence supporting the enforcement action. drainage. The two stock ponds, as with other stock ponds in the permit area,have been proposed but not yet approved as permanent structures, and were properly not included in the SL-2 release request area. The upper segment of channel is riprapped, with a series of notched rock checks constructed along the reach(Photos SL2-45 and SL2-46), ending a distance upstream of T-18. Channel segments further downstream are riprapped, without rock checks. The 005 Channel down to the confluence with 005-El was stable with no problems noted. A gully up to 18" deep extended along a steep 30' segment of the channel below the 005-El confluence,just upstream of T-18 (Photo SL2-12). Repair and riprap placement is necessary along this short channel segment. The Division's October 2005 inspection report had indicated that this steep lower reach exceeded design grade,but a re-check of the design channel profile (permit Exhibit 20-5.7) shows a design grade of 21.8% for the reach, which corresponds closely to the 2005 inspection measurement of 21%. Slopes in most of the 005 watershed have a good vegetation cover and are erosionally stable. Several springs have surfaced on the reclaimed slope south of the channel in the Pond T-18 vicinity, with minor seepage and moist areas with scattered cattail clumps. There has been minor settling and recent grading of settling cracks on slopes to the south and west of T-18. These areas will need to be periodically checked for movement in the future and repaired if warranted. Channel 005-W1, a short tributary that conveys spring discharge into T-18 from the southwest was dry and stable at the time of inspection. There is good woody plant establishment along the drainage channel upstream of T-18, particularly planted boxelder and seeded big sagebrush. T- 18 contained a full pool, T-20 contained a shallow pool; largely silted in with a thick stand of cattails. There is seepage from spoil springs in the vicinity of T-20. Channel 006-NE4 This is a short segment of channel (approximately 800')that drains the upper`B" Pit reclaimed area. It is a stable riprapped channel (see Photo SL2-47). Hillslopes in the watershed are well vegetated and appear stable. Channel 006-NE1 This channel is a continuation of 006-NE4, and drains the remainder of the`B"Pit reclaimed area. Old channel rills were noted along a steep drainage segment above the Oil Well Road,but the segment appears to be stabilizing, and no maintenance is recommended at this time. The steep reach continues downstream of the Oil Well Road Culvert OW-1, and near the end of the 11