Laserfiche WebLink
<br />,t <br /> <br />INSPECTION REPORT - PAGE 2 <br />FILE N0. 77-211- <br />DATE: February'f 7, 1985 <br />OBSERVATIONS OF IMPORTANCE: <br />The backfilled area east and southeast of the "shop area" exhibits <br />fractures subparallel to the crest line of the fill. It appears that <br />zones of movement and fractures are a result of settling and correspond <br />to backfill dump zones. Water retention and consequent freeze-thaw <br />cycles may also be a factor in the movement of the backfilled material. <br />The possibility for slippage or slumping exists. Adequate drainage <br />control to divert surface water away from the crest of the backfill and <br />to prevent puddling and ponding may be necessary. <br />2. Erosion is evident in the backfilled area east-southeast of the shop <br />area. Gullying is noted on the face of the slope. Sediment laden <br />waters leave the site via the toe of the slope. <br />3. The upper and lower sediment ponds need to be cleaned out. Mr. Heifner <br />stated that the outside of the culvert risers would be backfilled with <br />rock after cleaning. <br />4. A spring just above the lower sediment pond was recently excavated to <br />maintain flow. <br />5. The northern topsoil stockpile was neither graded nor revegetated. <br />RECOMMENDATIONS <br />1. The operator should submit a plan to stabilize the slope below the shop <br />area prior to Arpil 10, 1984. Backfilling this area from the toe of the <br />slope upward would add stability to the failing slope. The material <br />would be subjected to compaction, creating amore consolidated backfill <br />than would result from top dumping. <br />2. The operator should submit a plan to construct a sediment pond below the <br />shop area prior to April 10, 1985. Construction of a sediment basin or <br />entrapment at the toe of the slope, or downgrade thereof, would reduce <br />off site sedimentation. <br />3. All topsoil stockpiles should be graded (slopes no steeper than 2H:1V, <br />preferably 3H:1V) and revegetated for conservation purposes. <br />cc: Mark Heifner <br />/wjh <br />7808E <br />