Section 445A.6692 - Water wells: Access port or sounding tube; vent1. Except as otherwise provided in subsection 2, a water well must have an access port which can be used for measuring the level of water. If the diameter of the casing is: (a) No greater than 8 5/8 inches, the access port must:(1) Be 1 inch in diameter and located at the top or in the cover of the casing; and(2) Have a removable plug or bolt installed in such a manner as to prevent pollutants and contaminants from entering the well.(b) Greater than 8 5/8 inches, the access port must:(1) Be 2 inches in diameter and located near the top of the casing; and(2) Have a watertight, screw-type cap which is: (I) Sealed in such a manner as to prevent pollutants and contaminants from entering the well; and(II) Kept sealed when not being used for measuring the level of water.2. If the diameter of the casing of a water well is greater than 8 5/8 inches, the well may be equipped with a sounding tube, in lieu of an access port, which is:(a) Not less than 3/4 inch nor more than 1 inch in diameter; and(b) Installed in such a manner as to: (1) Preclude the entanglement of the sounder around the drop pipe or in the wires of any submersible pump; and(2) Prevent any interference with cascading water.3. A water well must be equipped with:(a) A vent that:(1) Extends above the wellhead;(2) Is elbowed toward the ground in the shape of an inverted "J"; and(3) Is covered with a screen that is not susceptible to damage by corrosion and has not less than 22 nor more than 24 mesh per inch; or(b) An air and vacuum valve that is attached to discharge piping.Nev. Admin. Code § 445A.6692
Added to NAC by Bd. of Health, eff. 2-20-97