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amec <br />foster <br />wheeler <br />January 29, 2016 <br />To Whom It May Concern, <br />Integrity of 14" diameter ADR1 Barren Line, 14"-BS-81826-3CB <br />The ADR1 Barren Line 14"-BS-81826-3CB has been reviewed for adherence to the design <br />requirements and construction quality assurance requirements. The ADR1 Barren Line has <br />been supplied and constructed in compliance with the ASME 831.3 standard. As constructed, <br />this pipeline meets all engineering design and installation requirements. The criteria followed in <br />the design and construction of this line is: <br />-ASTM A53 GRB piping, 0.438" wall thickness, fully butt welded joints, fully forged steel fittings <br />-Maximum Design Working Pressure 355 psig <br />-Maximum Allowable Pressure 740 psig <br />-Inspection Per ASME 831.3 standard- visual and 5% radiography <br />-Leak Testing Per ASME B31.3 standard — hydrostatic testing <br />Respectfully, <br />Arthur K Hanson, PE <br />Project Manager <br />AMEC Foster Wheeler <br />AMEC Foster Wheeler USA Corporation <br />10876 S River Front Parkway <br />South Jordan, Utah 84095 <br />