Well diameters greater than 1.22 and less than 152 attached to normal is drawn well for your better understanding and expression because a well also attached elevation type.
Drawing labels, details, and other text information extracted from the CAD file (Translated from Spanish):
minimum, variable, Elevation of, ground, From p.e., Embossed brocade, Flattened, Prop., Thickness min. Cm., brick wall, variable, height, minimum, Vars from, step, effluent, Influential, Bottom floor tile, Upper slab, Side slab, binder, Asphaltic, minimum, variable, Side slab, Bottom floor tile, Side slab, Upper slab, Steps with rod of, Embossed brocade, From p.e., binder, Asphaltic, Isometric, raised