15A NCAc 02c .0112       WELL MAINTENANCE: REPAIR: GROUNDWATER RESOURCES

(a)  Every well shall be maintained by the owner in a condition whereby it will conserve and protect the groundwater resources, and whereby it will not be a source or channel of contamination or pollution to the water supply or any aquifer, or the well shall be permanently abandoned in accordance with the requirements of 15A NCAC 02C .0113(b).

(b)  Dewatering wells shall be permanently abandoned in accordance with the requirements of 15A NCAC 02C .0113(b) within 30 days of completion of the dewatering activity.

(c)  All materials used in the maintenance, replacement, or repair of any well shall meet the requirements for new installation.

(d)  Broken, punctured or otherwise defective or unserviceable casing, screens, fixtures, seals, or any part of the well head shall be repaired or replaced, or the well shall be permanently abandoned pursuant to the requirements of Rule .0113(b) of this Section.

(e)  NSF International (NSF) approved PVC pipe rated at 160 PSI may be used for liner pipe.  The annular space around the liner casing shall be at least five‑eighths inches and shall be completely filled with neat‑cement grout or sand cement grout.  The well liner shall be completely grouted within 10 working days after collection of water samples or completion of other testing to confirm proper placement of the liner or within 10 working days after the liner has been installed if no sampling or testing is performed.

(f)  No well shall be repaired or altered such that the outer casing is completed less than 12 inches above land surface. Any grout excavated or removed as a result of the well repair shall be replaced in accordance with Rule .0107(f) of this Section.

(g)  Well rehabilitation by noncontinuous chemical treatment shall be conducted using methods and materials approved by the Department based on a demonstration that the materials and methods used will not create a violation of groundwater standards in 15A NCAC 02L or otherwise render the groundwater unsuitable for its intended best usage after completion of the rehabilitation.

 

History Note:        Authority G.S. 87‑87; 87‑88;

Eff. February 1, 1976;

Amended Eff. September 1, 2009, August 1, 2002; April 1, 2001; December 1, 1992; September 1, 1984.