Section 179-21-006 - WELLS AND PUMPING FACILITIES All transient public water systems must:
1. Maintain a sanitary seal on each wellhead.2. Seal cracks and crevices to prevent entry of vermin, flooding, or other contaminants.3. Maintain well casing vents, and where applicable, air release/vacuum relief valves, in a down-turned position and screened with corrosion resistant materials which have openings no larger than 24 mesh.179 Neb. Admin. Code, ch. 21, § 006