NR 812.11(7)(a)3.3. Well casing pipe, pipe couplings, cement, primer, and other components used shall meet the requirements of NSF Standard 14 as it relates to well casing pipe, or an approved equivalent organization. NR 812.11(7)(a)4.4. Thermoplastic well casing that terminates above ground shall be of the type with inhibitors recommended for use in direct sunlight, be painted with a light colored acrylic or latex paint, or shall be contained in a pumphouse or in an oversized steel pipe extending from below the frost depth to the top of the thermoplastic pipe. NR 812.11(7)(b)(b) Defective pipe. Thermoplastic well casing pipe shall be inspected for defects by the well driller or well constructor prior to use. Pipe with defects may not be used by a well driller or well constructor for permanent well casing pipe. NR 812.11(7)(c)(c) Marking requirements. The well casing pipe shall have certification markings from the manufacturer in accordance with the ASTM F 480 specification and this section. The pipe shall be marked at least every 5 feet showing all of the following: NR 812.11(7)(c)5.5. Designation “ASTM F 480” including year of issue of the standard with which the well casing pipe complies. NR 812.11(7)(c)7.7. Manufacturer’s code for resin manufacture, lot number, and date of manufacture. NR 812.11(7)(c)8.8. The NSF-WC designation or other approved laboratory’s seal or mark. NR 812.11(7)(d)(d) Assembly and installation. Thermoplastic well casing pipe shall be assembled by the well driller or well constructor in a manner according to the specifications in ASTM F 480 using any of the following joining methods: NR 812.11(8)(8) Temporary casing. Temporary casing pipe for all wells and heat exchange drillholes, or well casing pipe greater than 12-inch diameter used for nonpotable wells, may be a lighter weight steel pipe than specified for a given diameter in Table B. NR 812.11(10)(10) Drive shoes and casing shoes. Drive shoes and casing shoes shall meet all of the following requirements: NR 812.11(10)(a)(a) Drive shoes shall be factory manufactured and constructed of steel or iron with a hardened, beveled cutting edge. NR 812.11(10)(b)(b) Drive shoes shall have an inside diameter equal to the inside diameter of the casing pipe and an outside diameter that is larger than the outside diameter of the well casing. NR 812.11(10)(c)(c) Casing shoes shall be factory manufactured and constructed of steel or iron with carbide studs. NR 812.11(10)(d)(d) Casing shoes shall have an inside diameter equal to the inside diameter of the casing wall. NR 812.11(11)(11) Screens. Well screens shall meet all of the following requirements: NR 812.11(11)(a)(a) For potable low capacity wells, a continuous-slot screen composed of stainless steel, brass, or polyvinyl chloride (PVC), or a non-continuous slot screen approved under s. NR 812.091 shall be used. NR 812.11(11)(b)(b) Screen selection for driven point wells is optional, except that screens having any lead content may not be used. NR 812.11(11)(c)(c) For nonpotable high capacity wells, not including dewatering wells, a continuous-slot screen meeting the requirements of par. (a) or a low carbon steel or galvanized steel, continuous-slot screen shall be used.