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has been developed and completed by the well contractor. The well screen(s)shall <br /> meet the requirements of Section II (F)of these Rules. <br /> 3.All water supply wells shall be constructed so that a pump with a capacity equal to the <br /> well capacity(within the practical limits of pumps for a given diameter well)can be <br /> installed and operated without binding or without interference by contact with any part <br /> of the well. <br /> History Note: Substitute for NCAC 02C.0107 <br /> Eff. July 1, 2008;Amended eff. October 23, 2009 <br /> C. DRILLING FLUIDS <br /> 1. Drilling Fluids shall not contain neither organic nor toxic substances nor include <br /> water obtained from surface water bodies or water from a non-potable supply and <br /> may be comprised only of: <br /> a)The formational material encountered during drilling; <br /> b)Or materials manufactured specifically for the purpose of borehole conditioning <br /> or water well construction. <br /> History Note: Substitute for NCAC 02C.0107 <br /> Eff. July 1, 2008;Amended March 25, 2020 <br /> D. CASING-All newly drilled water supply wells in Orange County shall be cased with <br /> minimum 6"diameter steel casing unless otherwise specifically approved by the OCHD. <br /> The casing shall meet one of the following specifications: <br /> 1. The casing shall be new, seamless or electric-resistance welded galvanized pipe. <br /> Galvanizing shall be done in accordance with requirements of ASTM A53/A53M-07, <br /> which is hereby incorporated by reference, including subsequent amendments and <br /> editions. <br /> 2.The GasiRg shall be ReW, seamless or eleGtFiG resistaRGe welded blaGk steel pop <br /> bIaGk steel pope i's used, the�Afell sh-All be "Red with an appreved therwoplaStMG 1ineF Comment[VH52]:BLACK PIPE IS NOT <br /> prier to approval and plaGiRg the well IRtO Use; 0 NECESSARY <br /> 3.The casing shall be new, seamless or electric-resistance welded stainless steel pipe. <br /> Stainless steel casing,threads, and couplings shall conform in specifications to the <br /> general requirements in ASTM A530/A530M-04a,which is hereby incorporated by <br /> reference, including subsequent amendments and editions and also shall conform to <br /> the specific requirements in the ASTM standard that best describes the chemical <br /> makeup of the stainless steel casing that is intended for use in the construction of the <br /> well. Stainless steel casing shall have a minimum wall thickness that is equivalent to <br /> standard schedule number 10S. <br /> 4. The casing, threads and couplings shall meet or exceed the specifications of ASTM <br /> A53/A53M-07 or A589/589M-06, which is hereby incorporated by reference, including <br /> subsequent amendments and editions. <br /> 5.All joints shall be water-tight and threaded with heavy recessed-type couplings. <br /> 20 <br />