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AmerALa. Inc <br />MWD-2 Dnlling and Completion Report <br />10 to 4U feet along with water samples for geochemical analysis (discharge flow rates, total <br />dissolved solids ITDS), conductivity, temperature, and pH). Discharge measurements greater <br />than about 10 gpm were taken by the drilling personnel (timed wolumc increase in holding tank <br />attached to the :hale shaken, whereas those less than 10 gpm were made with a graduated <br />bucket. Variations in these data (Table G) arc summarized in Figure 8 and Tahlc _'. <br /> Table 2. Field Hydrology Summary Statistical Data <br /> \lin. tila~. ~1ean Stand. <br />Parameter \ Value 1'aluc ~'aluc Dew. <br />t)ischargr IgpmJ 43 I 240 I IS ~)' <br />ITS I ppnu 27 4111) 13.100 2?02 3.594 <br />Cunducuvity (Ir5;cm1 31 ')lU `2Q000 3.617 S.G01 <br />lcmpcrauuel°C1 31 18.3 27.5 22.1 2.4 <br />pFl 31 8.52 11.45 8.89 QGI <br />On the basis nn the driller's estimates ('Table 4), groundwater discharge was less than 30 gpm <br />betu'ce^ _'S5 and 795 feet and increased from 30 to 240 gpm between 795 and 1.155 feet <br />(Figure 81. The highest discharee rates (greater than 70 gpml occurred in the lower R-R Zone. <br />Below I .l 55 feet in the A-Groove. Mahogany 7_onc t R-7 Zonc1. F3-Groove, R-G Zonc and upper <br />I--~ lone, the discharge was 180 to 225 gpm. Aflcr the casing was set 11.670 feet), drilling to TD <br />11,703 CCCtI encountered discharge-flow rates ranging between about 7 and ?" gpm in the middle <br />1.-~ /.one. <br />1-tte pl I readings above the casing point (1,670 feet) show little variation. ranging betvecn <br />8.52 and 8.73 I "Table G :md Figure 8). The pl 1 readings of water samples collected helu,v the <br />casing point arc much more variable. Several anomalously high pH readings t 1 I.45 to 1 1.501 <br />were obscn ed between 1.670 and 1.672 feet, possibly Jue to residual fluids from the cement <br />used for lixing the intermediate casing string. From I,G75 (0 1,703 feet (TD1. pl l readings <br />ranged Gom 8.54 to 9.31. the temperature of the discharge water above the ca_vng point shows <br />a gradual increase with depth (1 R.3 °C to 2 L9 °C). Below the casing point. ~~:rter temperatures <br />are noticeably higher 119.9 "C to 27.5 "C ). Conductivity and TDS measurements also show little <br />variation above the casing point (910 to 1,040 microsiemens per centimeter ]µSicm] and -100 to <br />~. <br />