9423 EVERGREEN WAY 2018-01-01 MF Import

CASCADE TESTING LA�ORATORY. INC. TESTING 61NSPGCTION/LNGINEEf:S/G[OLOGISTS December 16, 1981 Cert. No. 8112-13G Paper Warehouse Corporation 'age 5 Due to the depth at which bearing soils were encountered near trie southeast footing line and the substantial amount of subsurface water along this line, special site preparation procedures and construction precautions are offered. These special considerations etfect the entire foundation area, so earthwork should �roceed in a prudent and careful manner. In TP-3 medium dense bearinq scils were encountered approximately six feet eight inches (6'8") beloo� the surface e•levation. The large volume of groiand water encountered at this elevation would create near impossible conditions for placing fa��`ng concrete. As an alternative to setting footings on the medium dense soi'_s, the area from TP-5 to TP-3 to TP-�1 should be prepared as outlined below; also, the easL-ernmost column Eooting pads may necessitate the same special preparation as outlined below. Trench - Backfill Excavate a trench a minimum width of three (3) feet outside and three (3) feet inside the edge of footing, through the area from TP-5 around to TP-4. Verification of bearing soils in the overexca- vated area should be made by the soil� engineer during the earth- working phase. The trench should be excavated down to medium dense to dense soils as described in TP-3. Heavy water seepages into the excavation should be expected. To reduce the effect oE che large volumes of gr�und water, we recommend excavati�g a aump adjacent to and connected to the footing trench. The sump should ba excavated deeper than the footing trench to allow the excess water �o flow toward the sump from the footing trench. Keep the sump area pumped out at all times prior to placing backfill in the footinq trench. Should the trench area be pumped down and then allowed to fill up �