Section 13051 Of Chapter 2. Definitions From California Water Code >> Division 7. >> Chapter 2.

. As used in this division, "injection well" means any bored, drilled, or driven shaft, dug pit, or hole in the ground into which waste or fluid is discharged, and any associated subsurface appurtenances, and the depth of which is greater than the circumference of the shaft, pit, or hole.