Section 534.370 - Construction of well: Prevention of contamination; use of additives; securing against unauthorized entry; suspension of drilling1. The well 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, including, without limitation, lost circulation materials, must be capable of being broken down and removed from the borehole and must not contaminate or induce contamination of the groundwater or be an organic substance unless certified as appropriate for use in a potable aquifer under the most current edition of Drinking Water Treatment Chemicals - Health Effects, NSF/ANSI/CAN Standard 60-2019, which is hereby adopted by reference. A copy of the standard may be obtained by mail from NSF International/Techstreet, 3025 Boardwalk Drive, Ann Arbor, Michigan 48108, by telephone at (855) 999-9870 or at the Internet address http://www.techstreet.com/nsf/products, at a cost of $325. As used in this subsection: (a) "Lost circulation materials" means substances added to drilling fluids when drilling fluids are being lost to the formations downhole.(b) "Organic substance" includes, without limitation, paper products, wood products, brans, hulls, grains, starches, hays, straws and proteins.3. If it becomes necessary for the well 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 natural persons, 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 steel 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.6. The rehabilitation of a well must not result in the commingling of aquifers.7. Any chemicals placed in a well for the purpose of reconditioning the well must be specifically designed for such purpose and used in accordance with the manufacturer's recommendations.Nev. Admin. Code § 534.370
St. Engineer, Drilling Wells Reg. §§ 3.14 & 3.15, eff. 5-19-81-NAC A 1-9-90; 12-30-97; A by R044-14, eff. 10/24/2014; A by R068-20A, eff. 12/29/2020; A by R068-20CAP, eff. 6/23/2021NRS 534.020, 534.060, 534.110