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formation material as necessary to allow for the installation and proper operation of <br /> pumps and associated equipment. <br /> 10. Thermoplastic casing may be installed under the following conditions: 1)Where the Comment[VH53]:NEW SECTION ADDED FOR <br /> well contractor-that conditions dictate its use; 2)where the well owner consents to,tum PVC OPTION IN CONSTRUCTION.STATE VERBIRAGE <br /> use of thermoplastic well casing, as indicated by the owner's signature on a form FOR 02C.0107 <br /> provided by the OCHD; 3)where the well contractor indicates in writing on the same <br /> form the reasons for installing thermoplastic casing. The signed form must be <br /> submitted to the OCHD prior to emplacement of the thermoplastic casing. <br /> 11. The casing shall be new. <br /> 12. The casing and joints shall meet or exceed all the specifications of ASTM F480- <br /> 06b, except that the outside diameters shall not be restricted to those listed in ASTM <br /> F480-06b,which is hereby incorporated by reference, including subsequent <br /> amendments and editions. <br /> 13. The depth of installation for a given SDR or Schedule number shall not exceed that <br /> listed in Table II unless, upon request of the Department, written documentation from <br /> the manufacturer of the casing stating that the casing may safely be used at the <br /> depth at which it is to be installed is provided. ENR—Environmental Management <br /> 15A NCAC .0100. <br /> a)Thermoplastic casing with wall thickness less than that corresponding to SDR <br /> 21 or Schedule 40 shall not be used; <br /> b) For wells in which the casing will extend into consolidated rock,thermoplastic <br /> casing shall be equipped with a coupling, or other device approved by the <br /> manufacturer of the casing,that is sufficient to protect the physical integrity of the <br /> thermoplastic casing during the processes of seating and grouting the casing and <br /> subsequent drilling operations; and <br /> c) Thermoplastic casing shall not be driven by impact, but may be pushed. <br /> BILE II- Maximum allowable depths(in feet)of Installation of Thermopla— <br /> Schedule 40 Maximu edule 80 M <br /> epth (in feet) 740 <br /> th (in feet) <br /> 30 .- Comment[VH54]:PART OF STATE WELL <br /> CASING TABLE OMITTED BECAUSE NO WELL LESS <br /> THAN 6INCHES CAN BE CONSTRUCTED(TOO MUCH <br /> 90 ROCK) <br /> f64 <br /> 70 <br /> 65 <br /> 0 055 <br /> MW Depth for h for Ma <br /> SDR 21 D SD <br /> (in feet) in fee (in fe <br /> II Diameters 185 355 735 <br /> 14. In constructing any well, all waterrwoearing zones th <br /> 22 <br />