Section 179-21-008 - POTABLE WATER STORAGE FACILITIES All transient public water systems must:
1. Inspect, and clean if necessary, water storage facilities equipped for accessibility, no less than once every five years.2. Secure the storage facility by use of locks on access manholes and hatches, and take other necessary precautions to prevent trespassing, vandalism, and sabotage.3. Where applicable, provide and maintain corrosion resistant screen of an effective mesh size on water storage structure vents. Screen mesh size must be proper for the vent design. Replace when necessary with in-kind screen.4. Where applicable, maintain water tightness as designed, of walls, floor, and roof to prevent the entrance of nonpotable water, birds, and other contaminant sources.5. Where applicable, provide and maintain a corrosion resistant screen of effective mesh size and/or a self-closing flap valve installed near or at the termination of all overflow lines on water storage structures. Screen mesh size and flap valves must be proper for the overflow line design. Replace when necessary with in-kind screen and/or flap valve. The termination point of the overflow lines must be maintained so that overflow discharge does not create, or contribute to, an erosion problem.179 Neb. Admin. Code, ch. 21, § 008