Page 83 - Safety Memo
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                                                                   Illustration 8 | Benching & Sloping For Excavations Made in Type "C" Soil










         Illustration 7 | Benching & Sloping For Excavations Made in Type "B" Soil




























                                                                 D.  Safety orders pertaining to shafts and wells include the
                                                                    following:
                                                                    1.  All shafts and wells more than 5 ft. deep into which workers
                                                                      are required to enter must be retained with lagging, spiling,
                                                                      or casing. 1542(a)(1)
                                                                    2.  Tests or procedures shall be performed before entry into
                                                                      exploration shafts to ensure the absence of dangerous air
                                                                      contamination or oxygen deficiency. 1542(c)(3), 5158



    54    Cal/OSHA Pocket Guide for the Construction Industry | June 2015  Cal/OSHA Pocket Guide for the Construction Industry | June 2015    55
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