BOH Agenda 022620 - Laserfiche WebLink

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2. Development shall not require efforts to reduce or eliminate the presence of dissolved constituents which are indigenous to the ground water quality in that area. History Note: Substitute for NCAC 02C.0107 Eff. July 1, 2008;amended eff. October 23, 2009 J. WELL HEAD COMPLETION 1. Every water supply well and such other wells as may be specified by the OCHD shall be equipped with a usable access port or airline.The access port shall be at least one half inch inside diameter opening so that the position of the water level can be determined at any time. The port shall be installed and maintained in such manner as to prevent entrance of water or foreign material. 2. The surface of the ground shall be graded away from the well-head in all directions. 3.All openings for piping,wiring, and vents shall enter into the well at least 12 inches above land surface and shall be adequately sealed to preclude the entrance of contaminants into the well. Wiring extending through the well seal shall be enclosed in conduit, and connected to a properly sealed junction box, in accordance with all Comment[VHei]:OCHD REQUIREMENT FOR n applicable electrical codes as specified in Section ll.(0)(9). PROTECTED ELECTRICAL sox 4. The well head shall be equipped with a screened vent to allow for the pressure changes within the well except if a suction lift pump or single-pipe jet pump is used or artesian,flowing well conditions are encountered. 5.The person installing the pump shall install a threadless sampling tap at the wellhead for obtaining water samples except in the case of suction pump or offset jet pump installations the threadless sampling tap shall be installed on the return (pressure) side of the pump piping. 6. If the wellhead is also equipped with a threaded hose bibb in addition to the threadless sampling tap, the hose bibb shall be fitted with a backflow preventer or vacuum breaker. 7. The threadless sampling tap shall be turned downward, located a minimum of twelve inches above land surface,floor, or well pad, and positioned such that a water sample can be obtained without interference from any part of the wellhead.The spout of the sampling tap shall be smooth and free of jagged edges or burrs. 8.The base plate of a pump placed directly over the well shall form a watertight seal with the well casing or pump foundation. 9. In installations where the pump is not located directly over the well, the annular space between the casing and pump intake or discharge piping shall be closed with an approved well seal designed specifically for this purpose. 10.A priming tee shall be installed at the well head in conjunction with offset jet pump installations. 27