A. An oil sump constantly and immediately attended while drilling operations are continuously proceeding;
B. An excavation covered by Sections 24400, 24401, or 24402 of the Health and Safety Code;
C. An excavation more than one-quarter mile from the nearest highway and within one-half mile of which excavation there are less than twenty residences;
D. An excavation for the installation of a public utility, if not abandoned;
E. An excavation in connection with the construction of a private residence, if not abandoned;
F. A swimming pool, fish pond, or wading pond on the same lot or parcel of land as a private residence;
G. An excavation not more than one-half mile in length which becomes a portion of a natural watercourse.
(Prior code § 9.36.070 (Ord. 388 Art. 2, § 4, 1954))