Page 251 - Safety Memo

& Sloping For Excavations Made in Type "B" Soil

& Sloping For Excavations Made in Type "C" Soil

Illustration 8 | Benching

Illustration 7 | Benching D. Safety casing. 1542(a)(1)

orders pertaining to shafts and wells include the

following:

1. All shafts and wells more than 5 ft. deep into which workers
required to enter must be retained with lagging, spiling,

are

or

2. Tests or procedures shall be performed before entry into

exploration
shafts to ensure the absence of dangerous air
o
contamination
r oxygen deficiency. 1542(c)(3), 5158
60 Cal/OSHA Pocket Guide for the Construction Industry | June 2019 Cal/OSHA Pocket Guide for the Construction Industry | June 2019 61