NAC534.370. Construction of well: Prevention of contamination; securing against unauthorized entry; suspension of drilling.

     1. The driller shall take the precautions necessary to:

     (a) Seal off any known zones of poor quality water which may affect the zones of good quality water in the well.

     (b) Prevent contamination or waste of groundwater.

     2. Any additive used in drilling a well must be safe and must not contaminate or induce contamination of the groundwater.

     3. If it becomes necessary for the driller to discontinue the drilling operation before completion of the well, the well must be covered securely to prevent a contaminant from entering the casing or borehole and rendered secure against entry by children, domestic animals and wildlife.

     4. After drilling is completed, all openings must be closed off to prevent contamination of the well. A sanitary well cap or welded plate must be welded to the well.

     5. If drilling is suspended for any reason, the Division must be notified within 24 hours after drilling is suspended or before the drilling equipment is moved from the drilling site, whichever occurs first. The suspension of drilling without completing or plugging the well must be approved by the Division.

     [St. Engineer, Drilling Wells Reg. §§ 3.14 & 3.15, eff. 5-19-81]—(NAC A 1-9-90; 12-30-97)