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the requirements of the Minnesota Department of Health Water Well Construcdon Code. The 1 <br /> ContracWr shall furnish to the Owner a certified mill cest reports stadng that the pipe has been <br /> manufacaired,sampled,tested and inspectefl in accordance with ASTM A-53 or API-SL. Each , <br /> length of pipe shall be legibly marke�with the name of the manufacturer. type of pipe, grade, <br /> specification number and heat number. <br /> Casing pipe shall be joinod with welded joints made and inspected in accordance with the latest , <br /> requiremcnts of the American Wata Wacks Associatiai(AWWA) Standard for Field Welding <br /> of Stoel Water Pipe, AWWA C206. � <br /> 3.2.2 Well Screea <br /> n w in h 1 n manufacwred b Johnson Filuati� � <br /> The well scrae shall be a ne 6- c te escope s�ze scree as y <br /> Inc. or an approvefl equal. Tt�e exact length and slot size will be dete�mined by the Engineer � <br /> 5rom samples taken during advancement of the pilot hole. A 10-foot long, 20 slot screen is <br /> expected. <br /> The top of the well screen shall be fiu,ed with a weld ring, S-foot long steel leader,and Figure 1 <br /> K packer (by Johnson Filtration Inc or approved equal). The base of the well screen shall be <br /> fia�ed with a flat plate. The well saeen and its fiuings shall be fabricated entirely of Type 304 � <br /> stainless sceel welded as specified by the manufacturer. <br /> 3.2.3 Cente�inA Guides � <br /> The centering guides shall be of the same material as the well screen and casing they attached <br /> to. ' <br /> 3.2.4 Drillin�Fluid <br /> fluid shall be le water defined as water that is safe for human consumpaon in that � <br /> Dnll�nB Potab <br /> it is free from impurities in amounts sufficient to cause disease or harmful physiological effects. � <br /> Bentonitc may be addod as necessary to maintain a stable hole,but no other additives shall be <br /> used onless approved by the Engineer. <br /> 3.2.5 Bentonite t <br /> Bentonite shall be finely ground.premium grade,high yield sodiam bentonite equal to Quik-Gel � <br /> manufact�u�ad by NL Baroid Industries,Inc. of HousWn,Texas. The bentonite shall be free of <br /> lumps and objectionable material that would prevent easy mixing into a smooth fluid,free from <br /> ���of�►���n��. 1 <br /> 3.2.6 Portland Cement <br /> Portland cement(Type 1) shall meet the requirements of ASTM G150. � <br /> � <br /> TS-3-2 , <br /> ' <br />