The minimum standards for drilling, casing and equipping a water well within the city limits shall be as follows:
The well shall be drilled with a 10-¾ inch bit and cased with a 6 inch steel or plastic casing. Casing in the water bearing formations may be perforated. The well shall be gravel. If the well is to be buried underground, the top of the casing shall be sealed with a rain-tight seal; if buried underground, concrete shall be poured between the casing and hole from the top of the casing to the depth of 10 feet. If the well is to extend to the surface, concrete shall be poured between the casing and the hole from the surface to a depth of 10 feet. A 6 inch concrete slab with a slope of ½ inch per foot shall be laid around such well and asphalt seal or seal of other suitable material shall be used to seal the area between the casing and the concrete slab.
(1986 Municipal Code, Title 8, Chapter 4, Section 8-4-6)