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2) The Contractor shall record on the logs all water bearing zones, and zones that exhibit driliing <br /> problems. <br /> 3) The Contractor shall file a well completion record with the state Department of Water <br /> Resources. <br /> 4) The Contractor shall submit a well completion diagram that indicatesthe total depth of the <br /> borehole, depth from ground surface of all grout, te�Ve casingd Packs and well screen, <br /> height above ground of PVC casing and steel p <br /> See Standard Specification Section 70, GENERAL; paragraph A, Pg 4. <br /> See Standard Specification Section 70, WELL INSTALLATION, paragraph N, pg 7. <br /> SECS N C -- <br /> MONrrORING WEI I DESIGN <br /> Casing diameter <br /> Casing diameter shall be 2 inches_ <br /> See Specifications Figure 2, Singie-Screen Well Design. <br /> Borehole a dim� <br /> Borehole diameter shall be 6 inches, minimum. <br /> i See:Specifications Figure 2, Single-Screen Well Design. <br /> ' Depth of surface seal <br /> Extend concrete base to 6 inches below ground surface and extend'neat cement seal from concrete <br /> basetothe top of bentonite seal- <br /> See Specifications Figure 2, Single-Screen Weil Design and Specifications Figure 3, Surface <br /> Completion Detail_ <br /> Well construction materials <br /> Construction materials shall be as fogllows. joints. <br /> �) Schedule PVC well casing with flush-threadedj <br /> 2) Schedule 40 PVC well screen wits, Dance with <br /> machine-cutLutreslDesignatiort 2112 <br /> 3) Sand pack that is graded in conformance with Lap sized similarto coarse sand. <br /> — <br /> ---- - 4) Bentonite seal consisting of sodium montmodiloniteday water_ and <br /> 5) Neat cement seal consisting of Portland cement and potable <br /> 6) Concrete surface seal consisting of a mixture of Portland cement, sand, coarse aggregate <br /> potable waterwith a minimum of 5 sacks of cement atubi yard,aVC casing.9. <br /> l'concrete <br /> 7) A 10-inch diameter steel well casing with locking P protect <br /> See Standard Specification Section 70, PRODUCTS, pg 2, &Specifications Figure 2, Single-Screen <br /> Well.Design and.Specifications Figure 3, Surface Completion Detail- <br /> Dia ram of well construction g gin IeSccreen Well Design. <br /> Construct well,as shown in Specifications 2 Single-Screen <br /> ocbWso.2= <br /> pjeg well Pian - _ <br />